Abstract
An improved method of lifting fluid using the difference between atmospheric or higher boosted pressure and fluid vapor or vacuum pressure applied to a series of chambers with a movable plate that divides each into variable volumes, and comprises one stage of the system. Combinations of pressures in the chambers between the movable plates lift the fluid to a height where the fluid column base pressure equals atmospheric or boosted pressure less friction and mass losses. A vertical array of stages, each lifting fluid from the stage below it, allows fluid to be lifted to any height, limited only by structure or geographic elevation. Further; operating pressures are tapped from the top and bottom of a standpipe filled with static fluid, pressure changes are made when the volumes are zero, and the sum of the volume receiving fluid and volume delivering the fluid are constant, making the system closed. Once raised, the fluid may be released for it's end use and more particularly; through a power generator. Where the fluid is water in an open environment and fed through a turbine, the water may be returned to the system reservoir to be reused in the cycle or if in a closed system the fluid may be returned to a chamber under pressure for reuse.
Claims
1. A method of raising fluid comprising: (a) a single or vertical array of stages S.sub.n, where n=1 through t and when: n=1,S.sub.1 is the bottom stage positioned above a fluid reservoir; n=t, S.sub.t is the top stage; n=2 through t−1 are the stages between the bottom and top stages; and when for a stage S.sub.n: S.sub.n+1 is the stage above S.sub.n; S.sub.n−1 is the stage below S.sub.n; and: t is less than or equal to m where m is the number of stages that may be fit within the height of a structure that can practically be engineered and built at a given elevation above sea level; and: each stage S.sub.n contains distinct variable volumes B1.sub.n, and A2.sub.n; and: (b) a means of maintaining or changing pressures to each said volume independently; said pressures being: fluid vapor pressure or vacuum pressure P.sub.o, atmospheric pressure P.sub.A or boosted pressure P.sub.B, residual pressure P.sub.R, which is driving pressure P.sub.A or P.sub.B less fluid height loss, friction loss, apparatus mass and other loss, and return pressure P.sub.G which is pressure from chamber fluid and apparatus mass; and: (c) a volume B1.sub.n , (n=2,3, . . ., t−1) is connected to volume A2,, (n=2,3, . . . , t−1) through a valving means, a volume B1.sub.n+1, (n=1,2, . . . , t−2)connected to volume A2.sub.n , (n=1,2, . . . , t−2) through a valving means; and: (d) a volume B1.sub.n is connected to volume A2.sub.1 through a valving means and to said fluid reservoir through a valving means; and: (e) a volume B1.sub.1 is connected to volume A2.sub.1 through a valving means and to volume A2.sub.t−1 through a valving means and volume A2.sub.t is connected to an external detention vessel through a valving means; and: (f) when said vapor or vacuum pressure P.sub.o is applied to volumes B1.sub.n, (n=1,2, . . . , t) simultaneously, residual pressure P.sub.R causes fluid to flow from said reservoir to B1.sub.1, from volume A2.sub.n, (n=1,2, . . . , t−1) to volume B1.sub.n+1, (n=1,2, . . . , t−1), and from A2 .sub.t to said detention vessel; and: (g) volume A2.sub.n+B1.sub.n+1, (n=1,2, . . . , t−1)=constant at all times; and: (h) when said atmospheric P.sub.A or boosted pressure P.sub.B is applied to volumes B1.sub.n, (n=1,2, . . . , t) return pressure P.sub.G causes fluid to move from volume B1.sub.n, to volume A2.sub.n; and: (i) volumes A2.sub.n+B1.sub.n, (n=1,2,. . . , t)=constant at all times; and: all pressure changes occur when volumes are at or near zero or filled with incompressible fluid; and: (j) fluid is metered out of said detention vessel; and: (k) where each stage is more particularly comprised of: (1) a series of sealed chambers each formed by walls circumscribing the perimeter of the chamber and a top and bottom solid deck connected to said walls, with said chambers arranged contiguously where said chambers are of equal volume and proportions, arbitrarily designated as A, B, and C; and when said chambers are arranged vertically, the bottom chamber is A, the middle chamber is B and the top chamber is C; and: (2) a movable plate located within each chamber with a sealing means between the edge of said movable plate and said chamber walls to maintain different pressures on each side of the movable plate but allow the movable plate to travel the full height of the chamber along the walls; and: (3) a movable plate assembly formed by said movable plates being joined together by a connecting means passing through said decks separating the chambers, with a sealing means between the deck and connecting means so that different pressures are maintained on each side of said decks and said plates travel in unison at the same relative position along the height of said walls of each chamber, and where the volumes on the bottom sides of the plates in the chambers are designated A1 in chamber A, B1 in chamber B, C1 in chamber C and the volumes on the top sides of the plates are designated A2 in chamber A, B2 in chamber B, and C2 in chamber C; and a single or plurality of conduits with valving means connected to each chamber so that the pressure in volumes A1, A2, B1, B2, C1, and C2 may be regulated independently; and: (4) when n=t=1 in a single stage system a single or plurality of conduits with valving means connect volume B1 and a reservoir at a lower elevation; and a single or plurality of conduits with valving means connect volume A2 to an external detention vessel; and: a single or plurality of conduits with valving means connect volumes B1 and A2; and: (5) a process that begins with step 1: (i) said movable plate assembly at the lowest possible travel position so that volumes A1, B1, and C1 are minimum and volumes A2, B2, and C2 are maximum; (ii) atmospheric pressure, P.sub.A , applied to volumes A1, A2, B1, C2, and the reservoir; (iii) fluid vapor or vacuum pressure P.sub.o, applied to volumes B2 and C1; (iv) volume A2 filled with fluid; and (6) a process that continues with step 2: (i) volume B1 is switched to said pressure P.sub.o; (ii) residual pressure P.sub.R, which is said atmospheric pressure P.sub.A acting on the reservoir, less the pressure losses due to height of said chambers above said reservoir, friction, and apparatus mass pushes against said movable plate between volume B1 and volume B2, causing fluid to flow from the reservoir into volume B1 through said conduits causing said movable plate assembly to travel upward; (iii) as said movable plate assembly moves upward, fluid from volume A2 flows through said conduits into said detention vessel; (iv) the plates travel to the uppermost position so that volumes A2, B2, and C2 are zero and volumes A1, B1, and C1 are maximum; (v) volume B1 is filled with fluid; and: (7) a process that concludes with step 3: (i) volume B1 is switched to said atmospheric pressure P.sub.A; (ii) said valves in said conduits to the reservoir close; (iii) said valves in said conduits connecting volume B1 and A2 open, allowing the fluid to flow into volume A2; (iv) return pressure P.sub.G , which is pressure from the fluid and apparatus mass, is applied to the face of the movable plate between volumes A1 and A2 pushing said movable plate assembly downward to the beginning position; and: (I) valves open or close to allow flow in the described directions but prevent flow in the opposite directions; and: (m) a metering means to release fluid from said detention vessel at a rate, either continuous or intermittent, directed to the end use and then released or returned to said reservoir; and: (n) when n>1 multiple stages are arranged in a vertical array at an interval such that said residual pressure P.sub.R between said stages will cause fluid to flow from stage to stage; and: (o) said conduits of said stages in the array, except the uppermost stage, connect it's volume A2.sub.n, to volume B1 nil of the stage above it; and: (q) said conduits of the uppermost said stage connect it's volume A2.sub.t to a said external detention vessel; and: (r) said conduits of the lowermost said stage connect it's volume B1.sub.1 to a said reservoir; and: (s) pressure changes in the volumes during said stage operational process occur simultaneously in all stages, forcing said movable plate assemblies and fluid of all stages to travel in unison and in the same positions relative to the chamber walls.
2. The systems as recited in claim 1, wherein the effluent from said detention vessel is metered through a power generating turbine possibly selected from the group of a Kaplan, Francis, Turgo, or Pelton type turbines and wherein the discharge from said turbine may be directed through a secondary cross flow turbine or wheel before being returned to the reservoir or released.
3. The systems as recited in claim 1, wherein the fluid vapor or vacuum pressure P.sub.0 is drawn from the top of a standpipe full of said fluid of a height equal to or greater than the height of said fluid having a base pressure equal to atmospheric pressure; and fluid to said standpipe is replenished at intervals from fluid lifted by the system.
4. The systems as recited in claim 1, wherein the fluid vapor or vacuum pressure P.sub.0 is provided by a mechanical means driven by an external power source or by power drawn from the system generator or by fluid scavenged from the system and routed through a hydraulic motor.
5. The system as recited in claim 1, wherein said conduits to and between volumes A2 and volumes B1 connect to ports in the wall and conduits are routed outside the walls of the system.
6. The system as recited in claim 1, wherein said conduits to and between volumes A2 and volumes B1 connect to ports formed within said decks and conduits are routed outside the walls of the system.
7. The system as recited in claim 1, wherein said conduits to and between volumes A2 and volumes B1 connect to ports formed within said decks and conduits and standpipe are routed outside the walls of the system.
8. The system as recited in claim 1, wherein said conduits to and between volumes A2 and volumes B1 connect to ports formed within said decks and conduits and standpipe are formed by cavities between double walls of said chambers.
9. The system as recited in claim 1, wherein the surfaces of said decks and said movable plates facing each other are of the shape and finish so that when said movable plates are at the extremes of travel and against the deck, the volume between said deck and said plate is approaching zero.
10. The system as recited in claim 1, wherein either or both of the surfaces of said decks and said movable plates facing each other are inscribed with grooves or other features to spread pressure changes throughout the volume when said movable plates are at the extremes of travel and the volume between said deck and said plate is near zero.
11. The system as recited in claim 1, wherein said movable plates have openings through the plate that align with hollow said connecting means so that said movable plate assembly has a clear passage or passages through said assembly open to volumes C2 and A1.
12. The system as recited in claim 1, wherein said movable plates between volumes C1 and C2 and volumes B1 and B2 have openings that align with hollow said connecting means so that said movable plate assembly has a clear passage or passages through said assembly open to volume C2 and closed to volume A1.
13. The system as recited in claim 1, wherein said movable plates between volumes C1 and C2 and volumes B1 and B2 have openings that align with hollow said connecting means so that said movable plate assembly has a clear passage or passages through said assembly open to volume C2 and closed to volume A1 and pressures P.sub.A or P.sub.B are delivered to volume A2 through said passage or passages in said movable plate assembly and through ports in said connecting means or in said movable plate between volumes A1 and A2.
14. The system as recited in claim 1, wherein the solid deck between stages is eliminated so that volumes A1 of the adjacent upper stage and C2 of the adjacent lower stage are combined and at atmospheric P.sub.A or boosted P.sub.B pressure; and: (a) combined volume A1 C2 is reduced to a minimum while volumes A2 and 01 remain the same; and said moving plate assemblies of the upper stage contributing volume A1 and of the lower stage contributing volume C2 share the travel distance of said moving plate assemblies within the common chamber wherein said combined volume A1 C2 and volumes C1+A2 =constant throughout said moving plate assemblies travel range; and: (b) said movable plate assemblies have openings through the plates and connecting means so that said movable plate assemblies have a clear passage or passages through said assemblies aligned with one another and open to all combined volumes A1 C2, volumes A2, uppermost volume C2 and lowermost volume A1; and: (c) movable plate assemblies further comprised of: (1) a hollow pressure sleeve fixed to the bottom of the movable plate between said combined volumes Al C2 and said volumes A2, aligned with hollow connecting means, extending upward inside said connecting means the height of chamber A, and of dimension to allow atmospheric pressure P.sub.A or boosted pressure P.sub.B to pass between the walls of said sleeve and hollow said connecting means through ports feeding volume A2 and through said pressure sleeve feeding stages above and below; and: (1) a hollow alignment sleeve fixed to the bottom of the movable plate between said combined volumes A1 C2 and said volumes A2, aligned with hollow connecting means, extending downward inside but not attached to said connecting means through said combined volume A!02 and extending into the hollow connecting means of said plate assembly of the stage below and of dimension to allow atmospheric pressure P.sub.A or boosted pressure P.sub.B to pass through said alignment sleeve feeding stages below and holding plate assemblies in alignment but free to move independently; and: (2) said alignment sleeve having ports into said volume A1 C2 to maintain pressure P.sub.A or P.sub.B.
15. The system as recited in claim 1 further comprised of: (a) a transfer chamber, open to the atmosphere, located near or at the top of volume A2 chambers; and: (b) a conduit or conduits from the top of volumes A2 to said transfer chamber; and conduits to volumes B1 connected to said transfer chambers; and: (c) an air gap between fluid leaving volume A2 into said transfer chamber and fluid entering conduits to volumes B1.
16. The system as recited in claim 1 , wherein some or all of each said walls, plates, decks, conduits, detention vessel, reservoir, and other miscellaneous components are comprised of identical or near identical parts to form a complete component.
17. The system as recited in claim 1, wherein some or all of each said walls, plates, decks, conduits, detention vessel, reservoir, and other miscellaneous components are formed from the family of polymers and may be mixed with components of other materials as required for strength and durability.
18. The system as recited in claim 1, wherein, with the exception of check valves, operable valves are driven by any of: external power source, power from the system generator, static fluid pressure from the standpipe, vapor or vacuum pressure P.sub.0, or boosted pressure P.sub.B.
19. The system as recited in claim 1, wherein positions of said isolation plate assemblies of individual stages are monitored by analog or electronic means and valves in said conduits are modulated by controllers to control fluid flow and keep said isolation plate assemblies in synchronized position or to delay pressure changes the in chambers until all said isolation plate assemblies have reached the extent of travel for that step in the process.
20. The system as in any one of the preceding claims wherein the atmospheric pressure P.sub.A is substituted by boosted pressure P.sub.B , higher than atmospheric pressure and produced by a mechanical means driven by an external power source or by power drawn from the system generator or by fluid scavenged from the system and routed through a hydraulic motor; and said volumes A1 and C2 of the same said stage or all volumes A1 and C2 of all stages are connected by a single or plurality of conduits; and said operational pressure change to said volume B1 from P.sub.0 is to P.sub.B.
21. The system as recited in claim 20, wherein the atmospheric pressure P.sub.A is substituted by boosted pressure P.sub.B, higher than atmospheric pressure and is drawn from the bottom of a standpipe filled with fluid of a height to deliver a base pressure higher than atmospheric pressure; and fluid to said standpipe is replenished at intervals from fluid lifted by the system; and said volumes A1 and C2 of the same said stage or all volumes Al and C2 of all stages are connected by a single or plurality of conduits; and said operational pressure change to said volume B1 from Po is to P.sub.B.
22. The system according to claim 20 or claim 21, wherein said volume A2.sub.t of the uppermost stage, said discharge conduit, detention vessel, turbine housing, and reservoir are closed to atmospheric pressure and maintained at boosted pressure P.sub.B.
23. The system as recited in claim 1, wherein each stage is more particularly comprised of: (1) a series of sealed equally sized and proportioned chambers designated A, B, and C each formed by walls circumscribing the perimeter of the chamber and a top and bottom solid deck connected to said walls with said chambers B and C arranged horizontally at the same elevation and chamber A set horizontally from chambers B and C so the top of chamber A is set a distance below the tops of chambers B and C; and: (2) a movable plate located within each chamber with a sealing means between the edge of said movable plate and said chamber walls to maintain different pressures on each side of the movable plate but allow the movable plate to travel the full height of the chamber along the walls; and: (3) a single or plurality of connecting members extending from each said movable plate through said chamber deck or decks, with a sealing means between said decks and connecting members so that pressure is maintained in said chambers while allowing said movable plates to travel the full height of said chambers; and: (4) a movable plate assembly formed by a transfer member fixed to the external ends of all connecting members of the stage chambers so that the movable plates travel in unison at the same relative position along the height of said walls of each chamber, and where the volumes on the bottom sides of the plates in the chambers are designated A in chamber A, B1 in chamber B, C1 in chamber C and the volumes on the top sides of the plates are designated A2 in chamber A, B2 in chamber B, and C2 in chamber C; and a single or plurality of conduits with valving means connected to each chamber so that the pressures in volumes A1, A2, B1, B2, C1, and C2 may be regulated independently; and: (5) when n=t=1 in a single stage system a single or plurality of conduits with valving means enter volume B1 at bottom deck level and connect to a reservoir at a lower elevation; and a single or plurality of conduits with valving means enter volume A2 at upper deck level and connect to an external detention vessel; and: (6) a single or plurality of conduits with valving means connect volumes B1 and A2 so that the invert elevation of the conduit exiting from volume B1 is at or lower than the volume B1 floor elevation and the invert elevation of the conduit entrance into volume A2 is less than the elevation of the bottom of the chamber B movable plate in it's most upward position; and: (7) a process that begins with step 1: (i) said movable plate assembly at the lowest possible travel position so that volumes A1, B1, and C1 are minimum and volumes A2, B2, and C2 are maximum; (ii) atmospheric pressure, P.sub.A , applied to volumes A1, A2, B1, C2, and the reservoir; (iii) fluid vapor or vacuum pressure P.sub.0, applied to volumes B2 and C1; (iv) volume A2 filled with fluid; and (6) a process that continues with step 2: (i) volume B1 is switched to said pressure P.sub.o; (ii) residual pressure P.sub.R, which is said atmospheric pressure P.sub.A acting on the reservoir, less the pressure losses due to height of said chambers above said reservoir, friction, and apparatus mass pushes against said movable plate between volume B1 and volume B2, causing fluid to flow from the reservoir into volume B1 through said conduits causing said movable plate assembly to travel upward; (iii) as said movable plate assembly moves upward, fluid from volume A2 flows through said conduits into said detention vessel; (iv) the plates travel to the uppermost position so that volumes A2, B2, and C2 are zero and volumes A1, B1, and C1 are maximum; (v) volume B1 is filled with fluid; and: (7) a process that concludes with step 3: (i) volume B1 is switched to said atmospheric pressure P.sub.A; (ii) said valves in said conduits to the reservoir close; (iii) said valves in said conduits connecting volume B1 and A2 open, allowing the fluid to flow into volume A2 due to elevation difference in invert elevation of conduit entering volume A2 and top of fluid elevation in volume B1; (iv) return pressure P.sub.G , which is pressure from the fluid and apparatus mass, is applied to the face of the movable plate between volumes A1 and A2 pushing said movable plate assembly downward to the beginning position; and: (v) return pressure P.sub.G increases as fluid moves from volume B1 to A2 causing said movable plate assembly to accelerate downward.
Description
BRIEF DESCRIPTION OF THE DRAWINGS
[0120] FIG. 1A is a schematic view of a single stage with vertically stacked chambers showing the static state at the end of the Transfer stroke and before the start of the ‘Lift’ stroke.
[0121] FIG. 1B is a schematic view of a single stage with vertically stacked chambers showing the initiation and process of the ‘Lift’ stroke.
[0122] FIG. 1C is a schematic view of a single stage with vertically stacked chambers showing the static state at the end of the ‘Lift’ stroke and before the start of the ‘Transfer’ stroke.
[0123] FIG. 1D is a schematic view of a single stage with vertically stacked chambers showing the initiation and process of the ‘Transfer’ stroke.
[0124] FIG. 2A is a schematic view of the top half of a column of stages with a match line to a schematic view of the bottom half of a column of stages represented in FIG. 2B, both in the ‘Lift’ stroke.
[0125] FIG. 2B is a schematic view of the bottom half of a column of stages with a match line to a schematic view of the top half of a column of stages represented in FIG. 2A, both in the ‘Lift’ stroke.
[0126] FIG. 3A is a schematic view of the top half of a column of stages with a match line to a schematic view of a bottom half of a column of stages represented in FIG. 3B, both in the ‘Transfer’ stroke.
[0127] FIG. 3B is a schematic view of the bottom half of a column of stages with a match line to a schematic view of a top half of a column of stages represented in FIG. 3A, both in the ‘Transfer’ stroke.
[0128] FIG. 4 is a diagram of a midsection of a functional configuration of a column of stages or stack with external lift and integrated standpipe lines in the ‘Lift’ stroke.
[0129] FIG. 5 is a diagram of the top section of a stack with external lift and integrated standpipe lines in the ‘Lift’ stroke.
[0130] FIG. 6 is a diagram of a midsection of a stack with external lift and integrated standpipe lines in the “Transfer’ stroke.
[0131] FIG. 7 presents perspective views from two different angles of a model of a stack with external lift and integrated standpipe lines indicating section views FIG. 8 and FIG. 9 through the column.
[0132] FIG. 8 is a longitudinal section cut according to FIG. 7 through a stack with external lift and integrated standpipe lines showing the apparatus during the ‘Lift’ cycle and indicating sections shown in FIG. 10, FIG. 11, FIG. 12, and FIG. 13.
[0133] FIG. 9 is a section cut according to FIG. 7 through a stack with external lift and integrated standpipe lines showing the apparatus during the ‘Transfer’ cycle.
[0134] FIG. 10 is a section cut according to FIG. 8 through a stack with external lift and integrated standpipe lines at the standpipe line location.
[0135] FIG. 11 is a section cut according to FIG. 8 through a stack with external lift and integrated standpipe lines between the standpipe lines locations.
[0136] FIG. 12 is a section cut according to FIG. 8 through a stack with external lift and integrated standpipe lines above the collection ring location.
[0137] FIG. 13 is a section cut according to FIG. 8 through a stage column configuration with external lift and integrated standpipe lines at the pressure relief deck between stages.
[0138] FIG. 14 is an exploded perspective view of typical stage components for a stage with external lift and integrated standpipe lines.
[0139] FIG. 15 is a diagram of a midsection of a shared chamber stack with external lift and integrated standpipe lines in the ‘Lift’ stroke.
[0140] FIG. 16 is a diagram of a top section of a shared chamber stack with external lift and integrated standpipe lines in the ‘Lift’ stroke.
[0141] FIG. 17 is a diagram of a middle section of a shared chamber stack with external lift and integrated standpipe lines in the Transfer stroke.
[0142] FIG. 18 is a longitudinal section of a model of a shared chamber stack with external lift and integrated standpipe lines in the ‘Lift’ stroke.
[0143] FIG. 19 is a longitudinal section of a model of a shared chamber stack with external lift and integrated standpipe lines in the Transfer stroke.
[0144] FIG. 20 presents a perspective view of a model of a stack with internal lift and standpipe cells contained within the walls of the chambers.
[0145] FIG. 21 is a longitudinal section of a model of a stack with internal lift and standpipe cells through a standpipe cell and in the ‘Transfer’ stroke.
[0146] FIG. 22 is a longitudinal section of a model of a stack with internal lift and standpipe cells through a lift cell and in the ‘Lift’ stroke.
[0147] FIG. 23 is a longitudinal section of a model of a stack with internal lift and standpipe cells through a lift cell and discharge line to the collection ring and in the ‘Lift’ stroke and indicating sections shown in FIG. 24, FIG. 25, FIG. 26, and FIG. 27.
[0148] FIG. 24 is a section cut according to FIG. 23 through a stack with internal lift and integrated standpipe cells above an isolation plate location.
[0149] FIG. 25 is a section cut according to FIG. 23 through a stack with internal lift and integrated standpipe cells above a flow deck location.
[0150] FIG. 26 is a section cut according to FIG. 23 through a stack with internal lift and integrated standpipe cells above a flow deck location showing the alternating lift cell.
[0151] FIG. 27 is a section cut according to FIG. 23 through a stack with internal lift and integrated standpipe cells above the collection ring location.
[0152] FIG. 28 is a longitudinal section of a model of a shared chamber stack with internal lift and standpipe cells in the ‘Lift’ stroke.
[0153] FIG. 29 is a longitudinal section of a model of a shared chamber stack with internal lift and standpipe cells in the ‘Transfer’ stroke.
[0154] FIG. 30 is an exploded perspective view of typical stage components for a stage with internal lift and standpipe lines and shared chamber stack.
[0155] FIG. 31 is a longitudinal section of a typical stage with relief lines connecting the top and bottom volumes.
[0156] FIG. 32 is a longitudinal section of typical stages with external lift, integrated standpipe lines, and an air gap between the transfer chambers and lift lines.
[0157] FIG. 33A is a schematic view of the top half of a column of stages with a match line to a schematic view of the bottom half of a column of stages represented in FIG. 33B, both in the ‘Lift’ stroke.
[0158] FIG. 33B is a schematic view of the bottom half of a column of stages with a match line to a schematic view of the top half of a column of stages represented in FIG. 33A, both in the ‘Lift’ stroke.
[0159] FIG. 34A is a schematic view of the top half of a column of stages with a match line to a schematic view of a bottom half of a column of stages represented in FIG. 34B, both in the ‘Transfer’ stroke.
[0160] FIG. 34B is a schematic view of the bottom half of a column of stages with a match line to a schematic view of a top half of a column of stages represented in FIG. 34A, both in the ‘Transfer’ stroke.
[0161] FIG. 35A is a schematic view of a single stage with horizontally arranged chambers showing the static state at the end of the Transfer stroke and before the start of the ‘Lift’ stroke.
[0162] FIG. 35B is a schematic view of a single stage with horizontally arranged chambers showing the initiation and process of the ‘Lift’ stroke.
[0163] FIG. 35C is a schematic view of a single stage with horizontally arranged chambers showing the initiation and process of the ‘Transfer’ stroke.
DESCRIPTION OF THE PREFERRED EMBODIMENTS
[0164] The preferred embodiment of the fluid lift assembly may best be understood by referring to the schematic diagrams in FIG. 1A, FIG. 1B, FIG. 1C, and FIG. 1D that depict a single stage comprised of three vertically stacked chambers consisting of walls, seal decks, flow deck, relief pressure decks, an isolation plate assembly, pressure lines, valves and seals. The cycle begins with the FIG. 1A configuration. Isolation plate assembly 11; comprised of isolation plates 1 with seals 5 against chamber walls 4, and connecting rods 2 against seals 3 in decks 6 and 7 is at rest in the bottom most position with all fluid contained in volume A2 except for incidental fluids in lines stopped by valves 12. Volumes A1, B1, and C1 are minimum or essentially zero. At this point, low pressure or vacuum valve 20 to volume C1, attached to low pressure or vacuum line 19 from the top of standpipe or other low pressure (vacuum) source cycles to maintain low (zero) pressure in volume C1 should there be any seal leakage. Valves 21, connected to the atmospheric pressure source and 20, connected to the system standpipe or other low (zero) pressure source are actuated by control lines 28 . Volumes A1, A2, B1, and C2 are at atmospheric pressure while volumes B2 and C1 are at P.sub.0 or ‘zero’ pressure so that the system is static and in balance. Pressure relief ports 10 in pressure relief decks maintain atmospheric pressure in volumes A1 and C2.
[0165] The events depicted in FIG. 1B are set in motion by switching the pressure in volume B1 of all stages from atmospheric P.sub.A to low or zero pressure P.sub.0 by means of valve 20 through low (zero) pressure line 19 while the isolation plate assembly 11 is at the bottom position and volume B1 is essentially zero. Lift lines 14 connect volume A2 of this stage to volume B1 of the stage above and connect volume B1 of this stage to volume A2 of the stage below. Valves 12 in flow deck 7 are closed to prevent flow between volume A2 and B1 of the same stage. Atmospheric pressure in volume A1 and from volume C2 down through the isolation plates, hollow rods, and through ports 45 to volume A2 now drives the fluid in volume A2 of this stage through fluid transfer tube 14 to volume B1 of the stage above. Residual pressure P.sub.A−(M+H) applied to the bottom face of the chamber B isolation plate 1 drives the isolation plate assembly 11 of all stages up simultaneously as fluid moves from volumes A2 to B1 of contiguous stages. FIG. 1B is defined as the ‘Lift’ stroke.
[0166] FIG. 1C is the top of the ‘Lift’ stroke. Volumes A2, B2, and C2 are all at minimum or essentially zero. Valve 20 to volume B2 and from low pressure or vacuum line 19 cycles to maintain low (zero) pressure in B2 should there be any seal leakage. All fluid in all stages is now in volumes B1 except for fluid above valves 12 and the system is at rest.
[0167] The ‘Transfer’ stroke depicted in FIG. 1D is initiated by opening relief valve 21 and letting atmospheric pressure into volumes B1. Volumes B, A2, and A1 are now all at atmospheric pressure. Valves 12 in flow deck 7 open to allow the fluid to transfer from volume B1 to volume
[0168] A2 of the same stage. Pressure P.sub.A+M+V applied to the top face of the chamber A isolation plate 1 drives the isolation plate assembly 11 down to the FIG. 1A position. Valves in relief port 10 opening into volumes A1 modulate to control air discharge and regulate the rate of the isolation plate assembly 11 descent. When the isolation plate assembly 11 reaches the bottom position, volumes A1, B1, and C1 are now at minimum or essentially zero. Valve 20 to volume C1 and from low pressure or vacuum line 19 cycles to maintain low (zero) pressure in C1 should there be any seal leakage.
[0169] The function of a stack or vertical array of stages can best be understood by referring to schematic FIG. 2A and FIG. 2B considered together along match line X-X. The stack in the figures is in the ‘Lift’ stroke, so all isolation plate assemblies 11 in all stages are traveling up as fluid moves into volumes B1 as described in the FIG. 1 commentary. Other elements of the embodiment are shown. The stages are connected by fluid lift lines 14 with a valve 12 at the base of each and Stage I is supplied by a lift line 14 fitted with a foot valve 30 into reservoir 31. A standpipe 15 of a height sufficient to deliver low or zero pressure from the top provides the pressure to valves 20 and valve actuators through pressure lines 19. Referring to the uppermost Stage IV, the discharge from volume A2, instead of rising to a higher stage, is run through valve 12, discharge line 22, shut off valve 24, and into detention vessel 23. Vessel 23 is located below solid deck 9 under volume A1 of Stage IV so that siphon action reduces unit pressure to chamber A isolation plate and improves flow during the lift. Detention vessel 23 stores enough fluid to last through both ‘Lift’ and ‘Transfer’ strokes when metered out through pen-stock line 25 to turbine 32 driving generator 26 and back into reservoir 31. Topping line 55 leads to standpipe 15 through topping valve 32 from volume Bl or alternately from detention vessel 23 and bleed off line 56 leads from the bottom of the standpipe through bleed valve 29 to reservoir 31. When isolation plate assemblies 11 reach the top of chamber and all volumes A2, B2, and C2 are at minimum (zero), level control 50 senses the position and checks standpipe fluid level through level control sensor 54. If low, before volume Bl is switched to pressure PA, topping valve 32 is opened and the standpipe is filled through topping line 55 until level control sensor 53 closes topping valve 32 while simultaneously, shutoff valve 24 is closed and valve 12 in discharge line 22 traps the fluid in the line while valve 20 in low pressure line 19 to volume B2 cycles to refresh the low (zero) pressure. Pressure control sensor 52 continuously monitors the top of stand pipe pressure and modulates bleed valve 29 to let off fluid back into reservoir 31 and maintain operating pressure. The sequence ends by relief valves 21 letting atmospheric pressure into volumes Bl of all stages leading to the ‘Transfer’ stroke.
[0170] The ‘Transfer’ stroke can be understood by referring to schematic stack diagrams of FIG. 3A and FIG. 3B together along match line X-X. The fluid in lift lines 14 is static and held in place by valves 12. The fluid in discharge line 22 is held between valvel 2 and shutoff valve 24. Fluid pressure now opens valves 12 in flow decks 7 so that all fluid transfers from Volumes B1 to volumes A2 of the same stages, driving the isolation plate assemblies down at a velocity regulated by modulating air relief port valves 10. Fluid continues to be metered from detention vessel 23 through penstock line 25 to turbine 32 and back to reservoir 31 during the ‘Transfer’ stroke. When the isolation plate assembly 11 reaches the bottom position and all volumes A1, B1 and C1 are zero, level control sensor 51 cycles valve 20 from low (zero) pressure line 19 to volume C1 to refresh the pressure, then simultaneously opens valve 20 from low (zero) pressure line 19 to volume A1 and shut off valve 24 to detention vessel 23 to begin the ‘Lift’ stroke.
[0171] A practical construct of the embodiment is contemplated in sections FIG. 4 and FIG. 5 where isolation plates 1 and decks 6, 7, and 9 are shaped for structural efficiency, ease of seal installation and replacement, and to nestle together to achieve near zero volume between them at the top and bottom positions of the isolation plate assembly 11 travel. Maximum lift height between stages is maintained by forming inlet chambers 18 to volumes B1 and outlet chambers 17 from volumes A2 within the heights of flow decks 7. Valves 12 are housed in outlet chamber 17 to prevent fluid from flowing back during the ‘Transfer’ stroke. The chambers 17 and 18 are adjoined by terminal boxes 13 that connect lift lines 14 and direct fluid flow to the chambers. In this embodiment, a plurality of chambers 17 and 18 with terminal boxes 13 are arranged alternately and at equal spaces in a polar array around a circular flow deck. By rotating the identical flow decks relative to each other in alternating stages, the outlet chamber 17 of one stage will align with the inlet chamber 18 of the stage above it so that an array of lift lines between contiguous stages will be rotated incrementally from the stage above or below it. FIG. 6 depicts the system during the ‘Lift’ stroke so fluid is flowing upward between stages through the lift lines 14 and in this configuration, the active lift lines between stages are rotated relative to each other so that a standpipe line segment 15 may be installed between them and connected by a bypass line 16 to develop full pressure. FIG. 7 depicts a section of the top of the stack where the terminal boxes 13 from outlet chambers 18 to volume A2 of the upper most stage connect to discharge lines 22 through shut off valves 24 and into detention vessel 23 where fluid is metered out to the turbines.
[0172] FIG. 6 represents an embodiment where solid deck 9 between stages is replaced by a flow deck 7 rotated relative to other flow decks so that inlet chamber 17, outlet chamber 18, and terminal boxes 13 clear the lift lines and standpipe lines. The terminal boxes with inlet and outlet chambers serve as air relief ports as the isolation plate assembly 11 moves up and down. The assembly in FIG. 6 is in the ‘Transfer’ stroke so valve 12 in transfer port 8 is open and fluid is flowing from volume B1 to volume A2 in the same stage.
[0173] The previous descriptions may be better understood by examining the exterior perspectives of FIG. 7. The arrangements of lift lines 14, standpipe line segments 15, and bypass lines 16 can be seen. In this configuration, the decks 6, 7, 9, isolation plates 1, and chamber shells 4, are each formed by a number of identical pieces, in this case forming a round structure. Each stage has a number of lift lines 14 rising to the stage above and a number of lift lines 14 arriving from the stage below. Each set is rotated a set degree relative to each other and are spaced uniformly around the stages. There is space between lift lines 14 of alternating stages to fit standpipe line segments 15 connected by bypass lines 16. Terminal boxes 13 separate fluids in the standpipe and lift lines. Low pressure lines 19 and valves 20 are spaced around the stack and connected to a pressure distribution ring 33 tapped into the top of the standpipes. The bottom of the standpipes are connected by a leveling ring 38 to balance fluid levels and accommodate bleed off valve 29. At the top stage, the discharge lines 22 feed the detention ring 23 from which fluid is metered through pen-stock line 25 to turbines 32 and 34 driving generators 26. The effluent passes first through a Francis, Pelton, Turgo, or Kaplan turbine to extract the majority of the energy then through a cross flow turbine to extract the last energy of the now slow moving fluid before it re-enters the reservoir 31. Sections cut on FIG. 9 are represented as FIG. 10 and FIG. 11.
[0174] FIG. 8 depicts the stack in the ‘Lift’ stoke and clarifies the relationship of the standpipe segments 15, lift lines 14, and bypass lines 16. Flow from the top stage through discharge line 22 and to detention vessel 23 can be seen. Cross sections are indicated on FIG. 8 as FIG. 10, FIG. 11, FIG. 12, and FIG. 13 and considered together will help explain the configuration. FIG. 9 is a section at a slightly different angle illustrating the ‘Transfer’ stroke and flow through the penstock line 25 to turbine 32.
[0175] FIG. 10 is a section cut below the isolation plate through volume B1 looking down on flow deck 7. Fluid is flowing from volume A2 below the deck through inlets 17 facing into volume A2, open valves 12, terminal boxes 13, and up lift lines 14 to the stage above. Fluid is flowing into volume B1 through outlets 18 opening into volume B1. Lift lines to the stage below run down from the terminal boxes 13 and standpipe segments 15. Bypass lines 16 run down from this standpipe segment to the standpipe segment located the second stage below. Valves 12 in transfer ports 8 are closed. Fluid is flowing down pen-stock line 25 to turbines below.
[0176] FIG. 11 is a section cut below the isolation plate through volume B1 looking down on flow plate 7. The flow plate of FIG. 11 is rotated relative to the flow plate of FIG. 10 so that the inlet 17 of this stage lines up with the outlet 18 of the stage above. Fluid is flowing from volume A2 below the deck through inlets 17 facing into volume A2, open valves 12, terminal boxes 13, and up lift lines 14 to the stage above. Fluid is flowing into volume B1 through outlets 18 opening into volume B1. Lift lines to the stage below run down from the terminal boxes 13 and standpipe segments 15. Bypass lines 16 run up alongside of lift lines 14 to the standpipe segment 15 above. Valves 12 in transfer ports 8 are closed. Fluid is flowing down pen-stock line 25 to turbines below.
[0177] FIG. 12 is a section cut below the isolation plate through volume B1 looking down on flow plate 7. The flow plate of FIG. 12 is rotated relative to the flow plate of FIG. 10 so that the outlet 18 of this stage lines up with the inlet 17 of the stage below. Fluid is flowing from volume A2 below the deck through inlets 17 facing into volume A2, open valves 12, terminal boxes 13, and up to the discharge lines 22 and to detention ring 23. Fluid is flowing into volume B1 through outlets 18 opening into volume B1. Lift lines to the stage below run down from the terminal boxes 13. Topping line 55 runs from volume B1 to topping valve 32 and into the standpipe below and pressure distribution ring 33 tapped into the standpipes delivers low pressure to pressure lines 19 and valves 20. Valves 12 in transfer ports 8 are closed.
[0178] FIG. 13 is a section cut below the isolation plate through volume A1 looking down on flow plate 7. The flow plate is rotated relative to the other flow plates so the terminal boxes 13 of this flow plate clear all lift lines, standpipes, and bypass lines. Terminal boxes 13 are fitted with screens 46, open to the atmosphere, so the plate acts as an air relief feature according to the FIG. 6 dialogue.
[0179] FIG. 14 is an exploded perspective view of a stage of the currently considered embodiment. Identical segments are joined to form complete seal decks 6 and flow decks 7, both to control flows in and out of the stage and to provide relief air as the isolation plate assemblies 11 move up and down. Identical shell panels 4 fit around the perimeter of the decks to form the chambers. The deck segments fit together around seal ring 40 that houses seal 3 against isolation plate assembly rods 2. Likewise, identical segments fit together around plate ring 41 to form isolation plates 1 together with rods 2 and plate seals 5 against shell panel 4 to form isolation plate assembly 11. Lift lines 14 fit to the bottom of terminal box 13 at outlets 18 and to the top of terminal boxes at inlets 17 and standpipe segments 15 together with bypass lines 16 mount under terminal boxes at inlets 17. Pressure lines 19 together with pressure valve 20 and atmospheric relief valves 21 attach to shell panels 4. Valves 12 fit into transfer ports 8 and inlets 17.
[0180] Considered together, FIG. 15, FIG. 16, FIG. 17, FIG. 18, and FIG. 19 describe another embodiment. Because isolation plate assemblies all move in unison, all volumes C2 and A1 are always at atmospheric pressure, and volumes A1 and C2 do not need to change, it is possible to remove deck 9 between stages and allow the isolation plate assemblies to share that travel distance. The space saved is distributed between all chambers increasing lift volumes and performance of the stack. Volumes A1 and C2 are combined between isolation plate assemblies and designated A1 C2. Hollow sleeves 47 and 48 fit inside rods 2 for alignment and atmospheric pressure is available down the length of the rods and delivered to volumes A2 and A1 C2 through ports 45 and 46.
[0181] Considered together, FIG. 20, FIG. 21, FIG. 22, and FIG. 23 describe yet another embodiment. The exterior lift lines 14, standpipes 15, and bypass lines 16 are replaced by internal lift cells 58 and standpipe cells 59 formed in shell panels by inside and outside walls and partitions into vertical chambers. Matching vertical chambers in the decks connect the deck inlets and outlets to the lift cells and provide full height continuity to the standpipe cells. FIG. 21 is an exterior perspective view of the embodiment with the key features of previously described configurations with some variations. Discharge lines 22 connect to terminal blocks 13 in the upper stage that tap into the lift cells 58. Influent lines 42 with foot valves 30 run from reservoir 31 to lift cells 58. FIG. 20 is a section through a set of standpipe cells 59 with the stack in the ‘Transfer’ stroke. FIG. 22 is a section through a series of active lift cells 58 with influent line 42 and foot valve 30 at the bottom stage. FIG. 23 is a slightly rotated section relative to FIG. 22 through a different set of active lift cells leading to terminal box 13 and discharge line 22 to detention ring 23 at the top stage. Cross sections are shown on FIG. 23 as FIG. 24, FIG. 25, FIG. 26, and FIG. 27.
[0182] FIG. 24 is a section cut through volume C2 looking down on identical isolation plate segments 1 fit together with plate ring 41 to form isolation plate assembly 11. Identical shell panels 4 consisting of inner and outer walls together with transverse partitions forming lift cells 58 and standpipe cells 59 fit together forming chambers. The lift cells are active (lifting fluid) or passive (empty) depending on their position above or below the flow deck 7. Pressure lines 19 deliver low pressure (vacuum) to the stages, fluid is flowing up through lift cell 58, and down to turbines through pen stock line 25.
[0183] FIG. 25 is a section cut through volume B2 looking down on flow deck 7 which is rotated relative to the flow deck of the stage below so that inlets 17 below line up with outlets 18 above. Fluid is flowing up from volume A2 below the flow deck, through inlets 17 facing volume A2, and up active lift cells 58 to the stage above. Fluid is flowing up into volume B1 from active lift cells 58 below the passive lift cells shown and through outlets 18 facing into volume Bl. Valves 12 in inlets 17 prevent back flow during the ‘Transfer’ stroke and the valves 12 in transfer ports 8 are closed to volume A2 below.
[0184] FIG. 26 is a section cut through volume B2 looking down on flow deck 7 which is rotated relative to the flow deck of FIG. 25 below so that inlets 17 below line up with outlets 18. Fluid is flowing up from volume A2 below the flow deck, through inlets 17 facing volume A2, and up active lift cells 58 to the stage above. Fluid is flowing up into volume B1 from active lift cells 58 below the passive lift cells shown and through outlets 18 facing into volume Bl. Valves 12 in inlets 17 prevent back flow during the ‘Transfer’ stroke and the valves 12 in transfer ports 8 are closed to volume A2 below.
[0185] FIG. 25 is a section cut through volume B2 looking down on flow deck 7 which is rotated relative to the flow deck of FIG. 26 below so that inlets 17 below line up with outlets 18. Fluid is flowing up from volume A2 below the flow deck, through inlets 17 facing volume A2, and up active lift cells 58 to the stage above. Fluid is flowing up into volume B1 from active lift cells 58 below the passive lift cells shown and through outlets 18 facing into volume B1. Valves 12 in inlets 17 prevent back flow during the ‘Transfer’ stroke and the valves 12 in transfer ports 8 are closed to volume A2 below. Terminal blocks 13 extend to discharge lines 22 down to detention ring 23.
[0186] Considered together, FIG. 28 and FIG. 29 describe another embodiment similar to the discussion of FIG. 15 through FIG. 19 and repeated here. Because isolation plate assemblies all move in unison, all volumes C2 and A1 are always at atmospheric pressure, and volumes C2 do not need to change, it is possible to remove deck 9 between stages and allow the isolation plate assemblies to share that travel distance. The space saved is distributed between all chambers increasing lift volumes and performance of the stack. Volumes A1 and C2 are combined between isolation plate assemblies and designated A1 C2. Hollow sleeves 47 and 48 fit inside rods 2 for alignment and atmospheric pressure is available down the length of the rods, conduit 27, and delivered to volumes A2 and A1 C2 through ports 45 and 46.
[0187] FIG. 30 is an exploded perspective view of a stage of the currently considered embodiment. Identical segments are joined to form complete seal decks 6 and flow decks 7 to control flows in and out of the stage. Identical shell panels with exterior and interior walls 4 fit around the perimeter of the decks to form the chambers and fluid cells 14 and 15. The deck segments fit together around seal ring 40 that houses seal 3 against isolation plate assembly rods 2. Likewise, identical segments fit together around plate ring 41 to form isolation plates 1 together with rods 2 and plate seals 5 against shell panel 4 to form isolation plate assembly 11. Lift cells 14 and standpipe cells 15 within shell panels fit to the bottom of terminal boxes 13 at outlets 18 and to the top of terminal boxes at inlets 17. Pressure lines 19 together with pressure valve 20 and atmospheric relief valves 21 attach to shell panels 4. Valves 12 fit into transfer ports 8 and outlets 18.
[0188] FIG. 31 is a variation of the embodiment depicted in FIG. 6 and FIG. 7, but applicable to all embodiments, and particularly where atmospheric pressure P.sub.A is substituted by a greater boosted pressure P.sub.B in volumes A1 and C2. Relief lines 57 connect volumes A1 and C2 so that when Isolation plate assembly 11 moves up and down during fluid transfers, air may move between volumes A1 and C2 maintaining a constant volume A1+C2.
[0189] FIG. 32 is a variation of the embodiment depicted in FIG. 4 and FIG. 5, but applicable to all embodiments driven by atmospheric pressure PA, where lift lines 17 are separated from the effluent from volumes A2 by an air gap 43 in transfer chamber 39. This eliminates unit fluid pressure P.sub.H from acting directly on the face of isolation plate 1 between volumes A1 and A2. Valve 12 prevents back flow in lift line 17 into transfer chamber 39 during the ‘Transfer Phase’.
[0190] The function of a stack or vertical array of stages using a driving boosted pressure can best be understood by referring to schematic FIG. 33A and FIG. 33B considered together along match line X-X. The stack in the figures is in the ‘Lift’ stroke, so all isolation plate assemblies 11 in all stages are traveling up as fluid moves into volumes B1 as described in the FIG. 1 commentary. Other elements of the embodiment are shown. The stages are connected by fluid lift lines 14 with a valvel2 at the base of each and Stage I is supplied by a lift line 14 fitted with a foot valve 30 into reservoir 31. A standpipe 15 of a height sufficient to deliver low or zero pressure from the top provides the pressure to valves 20 and valve actuators through pressure lines 19. Additionally, boosted pressure is tapped from pressure vessel 60 at the bottom of standpipe 15 and fed through valves 21 actuated by pressure lines 19. In order to maintain boosted pressure without loss in volumes A1 and C2 and because A1+C2 remains constant throughout the motion range of isolation plate assembly 11, the volumes are connected by relief lines 57 and/or hollow connecting rods 2 and pressure sleeves 47. As isolation plate assembly 11 moves, displaced air at boosted pressure travels between volumes A1 and C2 through the relief lines 57 and/or connecting rods 2 and pressure sleeve 47. In Stage I, fed by reservoir 31, height H above the reservoir is set so that residual pressure PR is based on atmospheric pressure PA. The height H between stages above Stage I can be increased since residual pressure PR is based on boosted pressure PB. Referring to the uppermost Stage IV, the discharge from volume A2, instead of rising to a higher stage, is run through valve 12, discharge line 22, shut off valve 24, and into detention vessel 23. Vessel 23 is located below solid deck 9 under volume A1 of Stage IV so that siphon action reduces unit pressure to chamber A isolation plate and improves flow during the lift. Detention vessel 23 stores enough fluid to last through both ‘Lift’ and ‘Transfer’ strokes when metered out through penstock line 25 to turbine 32 driving generator 26 and back into reservoir 31. Topping line 55 leads to standpipe 15 through topping valve 32 from volume B1 and bleed off line 56 leads from the bottom of the standpipe through bleed valve 29 to reservoir 31. When isolation plate assemblies 11 reach the top of chamber and all volumes A2, B2, and C2 are at minimum (zero), level control 50 senses the position and checks standpipe fluid level through level control sensor 54. If low, before volume B1 is switched to pressure P.sub.B, topping valve 32 is opened and the standpipe is filled through topping line 55 until level control sensor 53 closes topping valve 32 while simultaneously, shutoff valve 24 is closed and valve 12 in discharge line 22 traps the fluid in the line while valve 20 in low pressure line 19 to volume B2 cycles to refresh the low (zero) pressure. Pressure control sensor 52 continuously monitors the top of stand pipe pressure and modulates bleed valve 29 to let off fluid back into reservoir 31 and maintain operating pressure. The sequence ends by relief valves 21 letting boosted pressure into volumes B1 of all stages leading to the ‘Transfer’ stroke.
[0191] The ‘Transfer’ stroke can be understood by referring to schematic stack diagrams of FIG. 34A and FIG. 34B together along match line X-X. The fluid in lift lines 14 is static and held in place by valves 12. The fluid in discharge line 22 is held between valve 12 and shutoff valve 24. Fluid pressure now opens valves 12 in flow decks 7 so that all fluid transfers from Volumes B1 to volumes A2 of the same stages, driving the isolation plate assemblies down at a velocity regulated by modulating air through relief lines 57. Fluid continues to be metered from detention vessel 23 through pen-stock line 25 to turbine 32 and back to reservoir 31 during the ‘Transfer’ stroke. When the isolation plate assembly 11 reaches the bottom position and all volumes A1, B1, and C1 are zero, level control sensor 51 cycles valve 20 from low (zero) pressure line 19 to volume C1 to refresh the pressure, then simultaneously opens valve 20 from low (zero) pressure line 19 to volume A1 and shut off valve 24 to detention vessel 23 to begin the ‘Lift’ stroke.
[0192] The alternate embodiment of the fluid lift assembly may best be understood by referring to the schematic diagrams in FIG. 35A, FIG. 35B, and FIG. 35C that depict a single stage comprised of three horizontally arranged chambers consisting of walls, seal decks, flow deck, relief pressure decks, an isolation plate assembly, pressure lines, valves and seals. Chamber A may be set at a lower elevation than Chambers B and C to create fluid head that assists fluid flow from chamber B1 to chamber A2. The cycle begins with the FIG. 35A configuration. Isolation plate assembly 11; comprised of isolation plates 1 with seals 5 against chamber walls 4, and connecting rods 2 against seals 3 in decks 6 is at rest in the bottom most position with all fluid contained in volume A2 except for incidental fluids in lines stopped by valves 12. Volumes A1, Bl, and C1 are minimum or essentially zero. At this point, low pressure or vacuum valve 20 to volume C1, attached to low pressure or vacuum line 19 from the top of standpipe or other low pressure (vacuum) source cycles to maintain low (zero) pressure in volume C1 should there be any seal leakage. Valves 21, connected to the atmospheric pressure source and 20, connected to the system standpipe or other low (zero) pressure source are actuated by control lines 28 .
[0193] Volumes A1, A2, B1, and C2 are at atmospheric pressure while volumes B2 and C1 are at Po or ‘zero’ pressure so that the system is static and in balance. Pressure relief ports 10 in pressure relief decks maintain atmospheric pressure in volumes A1 and C2.
[0194] The events depicted in FIG. 35B are set in motion by switching the pressure in volume B1 of all stages from atmospheric PA to low or zero pressure Po by means of valve 20 through low (zero) pressure line 19 while the isolation plate assembly 11 is at the bottom position and volume B1 is essentially zero. Lift lines 14 connect volume A2 of this stage to volume B1 of the stage above and connect volume B1 of this stage to volume A2 of the stage below. Transfer lines 61 connect the bottom of volume B1 to the top of volume A2. Valves 12 in lift line 61 are closed to prevent flow between volume A2 and B1 of the same stage. Atmospheric pressure in volume A1 now drives the fluid in volume A2 of this stage through fluid transfer tube 14 to volume B1 of the stage above. Residual pressure P.sub.A−(M+H) applied to the bottom face of the chamber B isolation plate 1 drives the isolation plate assembly 11 of all stages up simultaneously as fluid moves from volumes A2 to B1 of contiguous stages. FIG. 35B is defined as the ‘Lift’ stroke.
[0195] The ‘Transfer’ stroke depicted in FIG. 35C is initiated by opening relief valve 21 and letting atmospheric pressure into volumes B1. Volumes B1, A2, and A1 are now all at atmospheric pressure. Valves 12 in Transfer lines 61 open to allow the fluid to transfer from volume B1 to volume A2 of the same stage. Pressure P.sub.A+M+CH applied to the top face of the chamber A isolation plate 1 drives the isolation plate assembly 11 down to the FIG. 35A position. As fluid moves from volume B1 to A2 fluid mass acting on chamber A isolation plate increases, causing isolation plate assembly 11 to accelerate downward. Valves in relief port 10 opening into volumes A1 modulate to control air discharge and regulate the rate of the isolation plate assembly 11 descent. When the isolation plate assembly 11 reaches the bottom position, volumes A1, B1, and C1 are now at minimum or essentially zero. Valve 20 to volume C1 and from low pressure or vacuum line 19 cycles to maintain low (zero) pressure in C1 should there be any seal leakage.
[0196] It is seen that the present invention addresses and corrects the many disadvantages of the currently used methods of producing electrical power and more generally raising water without consuming power. It provides a means of producing power that requires no fuel, can be built anywhere, can be scaled to meet any power requirement, emits no pollution, and is not dependent on location. Further it provides a means of producing power that operates with low stresses and temperatures allowing it to be manufactured with low cost readily available synthetic materials and with a design that uses standard components that can be mass produced, easily shipped, and rapidly assembled on site. The power plants are self regulating and self sustaining so that they may be owned by individuals, corporations, and local governments allowing them to be placed at the point of use, eliminating the need for long distance transmission lines and high power losses. Because the power plants can be sprinkled across the power grid with no environmental impact, the multiple nodes make the power grid invulnerable to attack and allow adjoining nodes to provide power to those locations that are temporarily down due to maintenance or failures. Further, local operators may provide power to constituents at no cost or sell power back into the grid for distribution.
[0197] Although the description above contains many specifics, these should not be construed as limiting the scope of the invention but merely as providing illustrations of some of the presently preferred embodiments of this invention. For example, where three components are shown to form a deck or plate, more or less may be used. One or more lines may connect any number of stages and any number of stage stacks may be manifolded together to produce any power output. Stages do not have to be stacked directly above one another, but may be offset, as in a single family home where a stage on one floor in a closet may be removed from a stage on another floor in a closet and connected by lines. The shape of the chambers may vary and more than one connecting rod may connect the plates.
[0198] While the invention has been particularly shown, described and illustrated in detail with reference to the preferred embodiments and modifications thereof, it should be understood by those skilled in the art that equivalent changes in form and detail may be made therein without departing from the true spirit and scope of the invention as claimed, except as precluded by the prior art.
[0199] Thus the scope of the invention should be determined by the appended claims and their legal equivalents, rather than by the examples given.
PARTS NUMBERS
[0200] 1 . . . Isolation Plate [0201] 2 . . . Connecting Rod [0202] 3 . . . Deck Seal [0203] 4 . . . Chamber Wall [0204] 5 . . . Isolation Plate Seal [0205] 6 . . . Chamber Deck [0206] 7 . . . Flow Deck [0207] 8 . . . Transfer Port [0208] 9 . . . Solid Deck [0209] 10 . . . Air Relief Ports or Valves [0210] 11 . . . Isolation Plate Assembly [0211] 12 . . . Valve [0212] 13 . . . Terminal Boxes [0213] 14 . . . Lift Lines [0214] 15 . . . Standpipe [0215] 16 . . . Bypass Line [0216] 17 . . . Outlet Chamber [0217] 18 . . . Inlet Chamber [0218] 19 . . . Pressure Lines [0219] 20 . . . Pressure Valve [0220] 21 . . . Atmosphere Relief or Boosted Pressure Valve [0221] 22 . . . Discharge Line [0222] 23 . . . Detention Vessel [0223] 24 . . . Shutoff Valves [0224] 25 . . . Penstock Line [0225] 26 . . . Generator [0226] 27 . . . Conduit, Rod [0227] 28 . . . Valve Actuator Line [0228] 29 . . . Bleed Off Valve [0229] 30 . . . Foot Valve [0230] 31 . . . Reservoir [0231] 32 . . . High Velocity Turbine [0232] 33 . . . Pressure Distribution Ring [0233] 34 . . . Low Velocity Turbine [0234] 35 . . . Return Line [0235] 36 . . . Air Relief Screen [0236] 37 . . . Weather Cap [0237] 38 . . . Standpipe Leveling Ring [0238] 39 . . . Transfer Chamber [0239] 40 . . . Seal Ring [0240] 41 . . . Plate Ring [0241] 42 . . . Influent Line [0242] 43 . . . Air Gap [0243] 44 . . . Cover Plate [0244] 45 . . . Chamber Port [0245] 46 . . . Common Port [0246] 47 . . . Pressure Sleeve [0247] 48 . . . Alignment Sleeve [0248] 49 . . . Closure Plate [0249] 50 . . . Top Position Control Sensor [0250] 51 . . . Bottom Position Control Sensor [0251] 52 . . . Pressure Control Sensor [0252] 53 . . . Fluid Level Control Sensor-High [0253] 54 . . . Fluid Level Control Sensor-Low [0254] 55 . . . Topping Line [0255] 56 . . . Bleed Off Line [0256] 57 . . . Relief Line [0257] 58 . . . Lift Cell [0258] 59 . . . Standpipe Cell [0259] 60 . . . Pressure Chamber [0260] 61 . . . Transfer Line
