Vertical axis wind and hydraulic turbine with flow control
09938958 · 2018-04-10
Inventors
Cpc classification
F03B17/063
MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
F03D3/0418
MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
Y02E10/74
GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
F05B2270/101
MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
F05B2210/16
MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
F05B2250/22
MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
Y02E10/728
GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
F03B3/183
MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
F05B2250/132
MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
F05B2240/12
MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
Y02E10/20
GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
Y02E10/30
GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
F05B2240/13
MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
F05B2240/9151
MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
F03D3/005
MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
F05B2240/91521
MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
International classification
F03D3/04
MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
F03B17/06
MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
F03B3/18
MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
F03B3/12
MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
F03D7/02
MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
F03D3/00
MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
Abstract
A vertical axis wind and hydraulic turbine with flow control including a regular hexagonal structure of radius R, parallelepiped-shaped, inside which a rotor rotates with three or more vanes on a vertical axis which is located in the center of the hexagon as seen from above, wherein the vanes when rotating generate a circle of radius Rt, further including six articulated deflector vanes that grab and concentrate the flow of air or liquid entering the rotor vanes, from the wind or liquid current entry side to the turbine and diffuse the flow of air or liquid exiting from the rotor vanes, from the side opposite to the wind or liquid entry side to the turbine.
Claims
1. A vertical axis wind and hydraulic turbine with flow control comprising: a regular hexagonal structure (7), the regular hexagonal structure having a first radius (R), and a parallelepiped shape; a rotor (6) located inside the regular hexagonal structure (7), the rotor having a wind or liquid inlet, a wind or liquid outlet, and three or more rotor vanes that, in top view, rotate on a vertical rotor axis which is located in a center of the regular hexagon structure, wherein said three or more rotor vanes rotate to generate a circle of a second radius (Rt) and a flow of air or liquid enters the rotor vanes through the wind or liquid inlet on a wind or liquid current entry side and then exits from the rotor vanes on a side opposite to the wind or liquid entry side; and exactly six articulated deflector vanes, wherein the six articulated deflector vanes i) grab and concentrate the flow of air or liquid entering the rotor vanes, from the wind or liquid current entry side and ii) diffuse the flow of air or liquid exiting from the rotor vanes, on the side opposite to the wind or liquid entry side, wherein, each one of the six articulated deflector vanes comprises a fixed part (3) and a movable part (2) movable between a closed position and an open position, each of said fixed parts (3) has a first inner end located adjacent the circle of a second radius (Rt) generated by the rotation of the three or more rotor vanes of the rotor (6), the first inner end of each of said fixed parts (3) having a curved surface that extends along a circle of a third radius (Rt), the circle of a third radius (Rt) being located adjacent the circle of a second radius (Rt), each said fixed part (3) has a second outer end located adjacent a vertex of the regular hexagonal structure (7) located on the circle of a first radius (R) of the regular hexagonal structure (7), the second outer end of each said fixed part (3) having a curved end surface with a fourth radius (r), each of said movable parts (2) has a first inner end pivotally mounted on a pivot axis located at one of the vertices of the regular hexagonal structure (7) and parallel to the rotor axis, the first inner end of each said movable part (2) having a leading edge (10) defined by a convex semicircle having a radius of curvature (r) corresponding to the fourth radius (r) of the curved end surface of the second outer end of each said fixed part (3), in the open position of each said movable part (2), the leading edge (10) of each said movable part (2) extends along and adjacent the curved end surface of the second outer end of a corresponding one of said fixed parts (2), and each of said movable parts (2) has a second outer end that defines a trailing edge (9) of each articulated deflector vane and a mean curvature line (LCM) that extends from the first inner end, through the pivot axis, to the trailing edge (9).
2. The wind and hydraulic turbine according to claim 1, wherein each of the six articulated deflector vanes comprise vertical plates of laminar configuration oriented in a direction of rotation of the rotor to use the wind or fluid flow incident from any direction.
3. The wind and hydraulic turbine according to claim 2, wherein each movable part of each of the six articulated deflector vanes located on the pivot axes parallel to the rotor axis which are on each of the six vertices of the hexagonal regular structure, rotates about the corresponding pivot axis so as to i) close the wind or liquid inlet to the rotor between a first said articulated deflector vane and an adjacent, second said articulated deflector vane, when said articulated deflector vanes are on the wind or liquid entry side and ii) to close the wind or liquid outlet from the rotor between said articulated deflector vane and the adjacent, second articulated deflector vane, when said articulated deflector vanes are opposite to the wind or liquid entry side.
4. The wind and hydraulic turbine according to claim 3, wherein when the movable parts of each of the six articulated deflector vanes are in the closed position, the mean curvature line of the moving parts of each of the six articulated deflector vanes generates a circle of the first radius (R), when viewed from above the six articulated deflector vanes.
5. The wind and hydraulic turbine according to claim 1, wherein the mean curvature line of the moveable part of each articulated deflector vane is equal to of a circle of the first radius (R).
6. The wind and hydraulic turbine according to claim 1, wherein the mean curvature line of the movable portion of each articulated deflector vane equals an arc passing through the middle of the fixed part of each articulated deflector vane and extends into the center of the regular hexagonal structure of the first radius (R).
7. The wind and hydraulic turbine according to claim 1, wherein, the movable part of the articulated deflector vanes has a profile aerodynamically in a shape of an aircraft wing, each said movable part has a profile with a top surface with a convex area and a lower surface with a concave region, and the convex area is joined to the concave area through the leading edge (10) at a widest part of the profile and forming an acute angle at a less wide portion of the profile, which corresponds to the outer end of the moveable part.
8. The wind and hydraulic turbine according to claim 7, wherein the fixed part of the articulated deflector vanes has an upper zone and a lower zone and a curvature with a profile that continues the convex area of the top surface of the movable part at the upper zone and continues the concave area of the lower surface of the moveable part at the lower zone, wherein at the first inner end of the fixed part the curvature changes course and direction to attain a higher performance as the fluid enters tangentially to a circumference of a radius generated by the rotation of the rotor vanes, wherein the convex area joins with the concave area of the side of the moveable part by the leading edge (10) with the concave semicircle of the radius of curvature (r) where the fourth radius (r) is greater than the radius of curvature (r), and wherein the upper zone joins with the lower zone of the fixed part at the first inner end through the curved surface that extends along the circle of a third radius (Rt), the circle of a third radius (Rt) being greater than the circle of a second radius (Rt), generated by the rotation of the three or more rotor vanes.
9. The wind and hydraulic turbine according to claim 1, wherein the turbine is configured to operate in a wind mode and said three or more rotor vanes generate three independent and distinct areas associated with each other when the turbine operates in the wind mode.
10. The wind and hydraulic turbine according to claim 1, wherein the turbine is configured to operate in an hydraulic mode and the rotor has six or more rotor vanes.
11. The wind and hydraulic turbine according to claim 10, wherein the rotor has ten or more rotor vanes.
12. The wind and hydraulic turbine according to claim 10, wherein the rotor has twelve or more rotor vanes.
13. The wind and hydraulic turbine according to claim 10, wherein the rotor is hollow.
14. The wind and hydraulic turbine according to claim 13, wherein the turbine has an hydraulic mode and the rotor vanes are shark fin vanes.
15. The wind and hydraulic turbine according to claim 1, wherein each rotor vane of said rotor comprises a vertical plate of laminar configuration oriented in a same direction of rotation of the rotor to use the wind or liquid incident in any direction.
16. The wind and hydraulic turbine according to claim 1, further comprising means for lifting and lowering the structure so that the wind and hydraulic turbine can be hidden underground in case of hurricanes and tornadoes.
17. The wind and hydraulic turbine according to claim 1, wherein the regular hexagonal structure is constructed with one of the group consisting of pipes, profiles and plates.
18. The wind and hydraulic turbine according to claim 17, wherein the one of the group consisting of pipes, profiles and plates is comprised of at least one of the group consisting of metal, plastic, and wood.
19. The wind turbine according to claim 1, wherein the rotor vanes and articulated deflector vanes are comprised of at least one of the group consisting of metal, wood and plastic material.
20. The wind and hydraulic turbine according to claim 1, further comprising a generator.
21. The wind and hydraulic turbine according to claim 1, further comprising an antiseismic module which allows coupling the vertical axis turbine to the ground or between more than one vertical axis wind turbine stacked one above the other.
22. The wind and hydraulic turbine according to claim 21, wherein said antiseismic module comprises two rings linked by six elastic shock absorbers each comprising a housing and a piston.
Description
BRIEF DESCRIPTION OF THE DRAWINGS
(1) The vertical axis wind and hydraulic turbine with flow control herein can operate in wind or hydraulic mode with flow control.
(2) When the present turbine operates in wind mode, it is represented by the following
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(15) When the wind and hydraulic turbine with flow control of this invention operates in hydraulic mode, it is represented by the following
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DESCRIPTION OF THE INVENTION
(26) When the wind and hydraulic turbine with flow control of this invention operates in wind mode, hereinafter it will be referred to as vertical axis wind turbine with flow control:
(27) This vertical axis wind turbine with flow control receives on the rotor vanes the powered and homogenized air along its entire length, having a regulated opening of the articulated deflector vane by means of moving parts of the same that control the entry of air that comes from any direction and fixed parts associated that concentrate the air on the rotor vanes at a higher speed and uniformly.
(28) The vertical axis wind turbine with flow control comprises a regular hexagonal type structure of radius R, parallelepiped-shaped, inside which a rotor with three vanes rotates about a vertical axis which is located in the center of the hexagon seen from above, wherein said vanes when rotating generate a circle of radius Rt, further comprising articulated deflector vanes, which account for and concentrate the incoming air flow on the rotor vanes, from wind entry side to the turbine and diffuse the air flow exiting from the rotor vanes, side opposite to the wind entry side to the turbine.
(29) The vertical axis wind turbine with flow control, which has six articulated deflector vanes, which comprise a fixed portion included in the regular hexagonal structure and another moveable part, arc-shaped on their outer walls, which may rotate about axes parallel to the rotor axis which are on each of the six vertices of the hexagonal type regular structure viewed from above.
(30) Said fixed portion of the articulated deflector vanes comprises the vertical wind turbine enhancer to use the incoming airflow; said fixed portion of each vane comprises arcs that continue the curvature of the moveable part on its portion closest to the moveable part, and then change the course and direction of the curvature at the final section near the rotor, this change of course and direction of curvature allows and improve performance as the fluid (air) enters tangentially to the circle of radius generated by rotation of the rotor vanes.
(31) The air is forced into the space between two fixed parts of the vanes which narrows in the direction of the axis and which is further optimized by changing the course and direction of curvature in the final section of the fixed part closed to the rotor to enable a higher performance as the fluid enters tangentially to the circle of radius generated by the rotation of the rotor vanes, so that the air flow is accelerated in the vicinity of the rotor, that gets energy to provide electricity.
(32) The fixed part of the articulated deflector vane at the side where the air enters the system functions as airflow concentrators on the rotor vanes, while the articulated deflector vane located at the side from where the airflow exits the system function as flow diffusers of the air that made the rotor vane rotate.
(33) Each of the moving parts of the six articulated deflector vanes arched shaped on their outer walls comprise vertical plates of laminar configuration positioned in the same direction of rotation of the rotor to use the incident wind in any direction.
(34) Each moveable part of each of the six articulated deflector vanes located on axes parallel to the rotor axis which are on each of the six vertices of the hexagonal type regular structure viewed from above, can rotate about corresponding axis parallel to the rotor axis which is located at each vertex of the regular hexagonal structure so as to close the wind inlet towards the rotor between said deflector vane and the next articulated deflector vane, if said articulated deflector vanes are located on the wind entry side or close the wind output from the rotor between said articulated deflector vane and the next, if said articulated deflectors vane are located on the side opposite to the wind entry side.
(35) Said vertical axis wind turbine with flow control is characterized in that when the movable parts of each of the six articulated deflector vanes of the hexagonal system is rotated so as to close the inlet and outlet of the wind to and from the rotor between the six articulated deflector vanes, the mean curvature line of the moving parts of each of the six articulated deflector vanes generates a circle of radius R viewed from above (if attached between the six vertices of the hexagon).
(36) The mean curvature line of the movable portion of each articulated deflector vane equals the arc passing through the middle of the fixed part of each articulated deflector vane and extends to the center of the regular hexagonal structure of radius R. This mean curvature line is equal to the arc corresponding to of the circumference of radius R, thus joining the six lines of curvature would generate a circle of radius R.
(37) In the same way the arc passing through the middle of the fixed part of each articulated deflector vane and extends to the center of the regular hexagonal structure of radius R is also equal to the arc corresponding to of the circumference of radius R.
(38) By regulating the size of the fixed portion of each articulated deflector vane depending on the size of the rotor a higher or lower rotor speed is achieved for a flow equal to the incident wind, that is, the smaller is the fixed part and the greater is the rotor size, the rotor rotation speed is slower, in the same manner, the greater is the size of the fixed part and the smaller the size of the rotor, the rotor rotation speed is higher.
(39) Whereas the movable part of the articulated deflector vanes has a profile aerodynamically designed in the form of an aircraft wing, the same has the so-called upper surface on its upper portion and the lower surface on the bottom.
(40) Considering such a profile of the movable part of the articulated deflector vanes as an aircraft wing, it has an upper convex area on the top surface and a lower concave region in the lower surface separated by the mean curvature line, being the convex upper zone coupled to the lower concave region through a convex semicircle of radius r on the widest part of the profile where the radius r is known as a radius of curvature of the leading edge and forming an acute angle on the less wide portion of the profile, which corresponds to the outer end of the movable part which is known as trailing edge considering the airfoil.
(41) The moveable part of each vane has an average curvature equal to of a circle of radius R.
(42) The fixed part of the articulated deflector vanes has a profile that continues the convex zone of the top surface of the moveable part and the concave zone of the lower surface of the moveable part in the lower zone, wherein in the final section near the rotor of the fixed part the curvature changes of course and direction to allow a higher performance as the fluid enters tangentially to the circle of radius generated by the rotation of the rotor vanes. The change of curvature changes the convexity of the upper portion to concavity and in the same way the bottom concavity changes to convexity.
(43) The upper convex zone merges with the concave bottom zone of the movable part side on the fixed part of the articulated deflector vane by means of a concave semicircle of radius r wherein r>r due to the change of curvature mentioned, the upper concave zone merges with the bottom convex zone on the rotor side by a concave semicircle of radius Rt wherein Rt>Rt
(44) The concavity of the semicircle of radius r on the side of the moveable part allows as r>r that the moveable part rotates about the corresponding axis parallel to the rotor axis which are in one of the six vertices of the hexagonal regular structure, so that no friction occurs between the concave and convex circular walls generated by the semicircles of radii r and r.
(45) The center of the concave semicircle of radius r and the center of convex semicircle of radius r are coincident.
(46) The concavity of the semicircle of radius Rt of the fixed portion of the rotor side being Rt>Rt allows that the rotor vanes generating a circle of radius Rt when rotating do not rub the concave circular walls of the fixed part on the side of the rotor.
(47) The center of the semicircle of radius Rt and the center of the circumference Rt are coincident with the center of the regular hexagonal structure of radius R.
(48) It is preferred a parallelepiped-shaped hexagonal system without walls assembled with pipes, profiles or plates located at the edges so as not to have side walls to prevent air from entering or exiting when necessary.
(49) The pipes, profiles or plates which form the parallelepiped shaped regular hexagonal structure of radius R, may be of metal or any other material that supports the needs of the product depending on its size.
(50) Among the preferred materials are metals, plastics, wood or any material used in construction and combinations thereof.
(51) These same materials may be used in combination for the construction of the rotor and the articulated deflector vanes.
(52) The rotor of the vertical axis wind turbine with flow control comprises three vanes which generate three separate and distinct zones associated with each other wherein the vanes comprise vertical plates of laminar configuration oriented in the same direction of rotation of the rotor to use the incident wind in any direction.
(53) In order to modify the opening or closing of the moveable part of each articulated deflector vane the wind turbine described herein has electrical, mechanical, hydraulic or pneumatic means allowing the closure of the movable portion thereof to be used in case of presence of strong winds that can damage the integrity of the structure.
(54) Such electrical, mechanical, hydraulic or pneumatic means allow the closure of the moveable part and can be actuated automatically when the wind exceeds a predetermined speed which is detected by an anemometer included in the structure.
(55) To protect the integrity of the vertical axis wind turbine with flow control, the same has lifting and lowering means so that it can be hidden underground in case of presence of hurricanes or tornadoes.
(56) The system can be shutdown in a very short time, making it possible to be hidden underground in case of presence of hurricanes or tornadoes.
(57) In this case, wind energy, actually the kinetic energy of the moving air, provides mechanical energy to the rotor which, through a mechanical drive system rotates the rotor of a generator, usually three phase alternator, which converts rotational mechanical energy into electrical energy.
(58) The wind generator described herein has some technical features that allow using the wind from any direction to generate energy, especially electricity, and being its installation and configuration simple, it is ideal for home use or any other use.
(59) The rotor vanes have a laminar configuration, in a vertical position and with a curved profile in a plan view, said curved profile is positioned in the direction of rotation to use the wind coming from any direction caused by the articulated deflector vane.
(60) This wind generator has the advantage that there is no need to position it such that the central rotary axis is aligned with the wind direction, but the wind moves the rotor vanes as any incident wind is taken by the movable part of the articulated deflector vanes.
(61) To prevent damages to the machine in case of strong wind or storm, said device has a mechanism to close the moving vanes so as to form a circumference with no surfaces exposed to wind.
(62) Several vertical axis wind turbines with flow control can be built in the form of modules that can be stacked or adjacent to each other.
(63) Stacked modules may share the same axis of the rotors and an additional advantage in this case is that if the hexagonal structures are regularly offset this configuration may receive the wind enhancing its performance.
(64) For installation in seismic areas, the vertical axis wind turbine with air flow control may include a seismic module which allows the coupling between the vertical axis wind turbine with air flow control and the ground or between more than one vertical axis wind turbine with air flow control stacked one above the other. This module comprises two rings linked by six elastic shock absorbers each comprising a housing and a piston including elastic, hydraulic, pneumatic means or for example high impact rubber. On the rings the vertical axis wind turbine with air flow control are mounted.
(65) Differences and Advantages Over Vertical Axis Wind Systems
(66) The moveable and fixed vanes associated to this system can capture an air mass several times larger and transmit its energy by increasing its speed impacting directly on the rotor vane.
(67) To homogenize the flow of air, pressure exerted on the vane is more uniform avoiding stresses and vibrations with a loss of useful power facilitating and simplifying its construction design.
(68) It allows regulating the start speed similar to a SAVONIUS system and by increasing the opening of the moving vanes speed and overall performance increases over a Darrieus system as it operates on resistance force and high speed, combining the advantages of both traditional vertical axis wind systems.
(69) Summarizing, this is a direct drive and high speed wind turbine, which advantages are: Maximum use of wind energy as transmits the vector by increasing wind speed impinging on the rotor vane directly. Increase due to narrowing of the air outlet at the end of the fixed portion closest to the rotor of each of the articulated deflector vanes.
General Advantages Over Horizontal Axis Wind Systems Support on two or more sites of the rotor with the structure avoiding vibrations and fatigue of material. Little or minimal sonority. Stacked modular use. Unique rotor with offset vanes for an easier start and to avoid vibrations and parasitic frequencies. Generator at ground level or underground with obvious maintenance advantages. No risk of operators working at height and at lower cost. Lubrication equipment (tanks, pumps, filters, etc.) at ground level. Overall modular construction system in factory, allows a quick and secure assembly in permanent strong wind areas either in high mountains or seas, etc. and difficult access areas. Use of conventional materials (resins and stainless steel only). Solid and robust construction with little sound and visual impact and not aggressive to wildlife and birds in particular. Safe, as rotor vanes cannot detach as they are installed within the equipment protected by the fixed vanes, allowing use in urban areas (buildings, towers, etc.) It is the only equipment that can be designed in different heights and vane length. Being a structure with hexagonal base, the width of the vane plus the fixed vane width equals the width of the movable vane, being able to choose these parameters according to the best aerodynamics. Suitable for marine and river use on platforms, ships, buoys, etc. Multidirectional, fully automatic, using the wind even in turbulences. Simple braking system without wear or rubbing, simply closing the moving vanes (see the top view of the closure system). High range of wind speeds from a minimum of 3 km/hour to 70 km/hour. Upon a weather alert, the system can be closed completely and shuts down; restart is immediate. Only wind equipment to be used in hurricane zones as it can be installed fully underground. The half-life and low cost of construction and maintenance far exceeds any wind equipment today, allowing its use in financial plans associated to its operation, by issuing green and/or energy bonds. Allows affordable insurance.
(70) When the wind and hydraulic turbine with flow control of this invention operates in hydraulic mode, hereinafter it will be referred as vertical axis hydraulic turbine with flow control:
(71) This vertical axis hydraulic turbine with liquid flow control receives on the rotor vanes the powered and homogenized flow of fluid along its entire length, having a regulated opening of the articulated deflector vane by means of the moving vanes that control the entry of liquid that comes in any direction and the fixed vanes associated that concentrate the flow of fluid on the rotor vanes at a higher speed and uniformly.
(72) The vertical axis hydraulic turbine with flow control comprises a hexagonal regular structure of a radius R, parallelepiped-shaped, inside which a rotor rotates with three vanes about a vertical axis which is located in the center the hexagon as seen from above, wherein said vanes have a shark fin shape and when rotating generate a circumference of radius Rt, further comprising six articulated deflector vanes which grab and concentrate the flow of liquid entering the rotor vanes, from the flow of liquid entry side to the turbine and diffuse the flow of liquid exiting the rotor vanes, from the side opposite to the flow of liquid entry side to the turbine.
(73) The vertical axis hydraulic turbine with flow control, has six articulated deflector vanes, which comprise a fixed portion included in the regular hexagonal structure and another moveable part that is arc-shaped on its outer walls and rotatable about axes parallel to the rotor axis which are on each of the six vertices of the hexagonal type regular structure viewed from above.
(74) The fixed portion of the articulated deflector vanes comprises the enhancer of the vertical hydraulic turbine to use the incoming fluid flow; said fixed portion of each vane comprises arcs that continue the curvature of the moveable portion of said vanes in the area closer to the moving part. Said fixed portion of the articulated deflector vanes comprises the enhancer of the vertical wind turbine to use the incoming airflow; said fixed portion of each vane comprises arcs that continue the curvature of the moveable portion of said vanes on its side closest to the moving part, to then change the course and direction of its curvature near the final section to the rotor.
(75) This change of course and direction of its curvature enables a higher performance as the fluid (air) enters tangentially to the circle of radius generated by the rotation of the rotor vanes.
(76) The fixed part of the articulated deflector vanes has a profile that continues the convex zone of the top surface of the moveable part and the concave zone of the lower surface of the moveable part in the lower zone, wherein in the final section close to the rotor of the fixed part, the curvature changes course and direction to allow a higher performance as the fluid enters tangentially to the circle of radius generated by the rotation of the rotor vanes, allowing, due to this curvature change, to capture the incoming fluid, which is forced into the space between two fixed vanes that narrows in the direction of the axis, so that the fluid flow is accelerated in the vicinity of the rotor, that gets energy to provide electricity.
(77) The fixed part of the articulated deflector vane at the side where the liquid enters the system functions as airflow concentrators on the rotor vanes, while the articulated deflector vane located at the side from where the airflow exits the system function as flow diffusers of the liquid that made the rotor vane rotate.
(78) Each of the moving parts of the six articulated deflector vanes arched shaped on their outer walls comprise vertical plates of laminar configuration oriented in the same direction of rotation of the rotor to use the incident fluid flow in any direction.
(79) The fixed parts of each of the six articulated deflector vanes also comprise vertical plates of laminar configuration.
(80) Each moveable part of each of the six articulated deflector vanes located on the axes parallel to the rotor axis which are on each of the six vertices of the hexagonal type regular structure viewed from above, can rotate about the axis parallel to the corresponding rotor axis which is located at each vertex of the regular hexagonal structure so as to close the fluid inlet towards the rotor between said articulated deflector vane and the next, if said articulated deflector vanes are located on the fluid entry side or close the fluid outlet from the rotor between said articulated deflector vane and the next, if said articulated deflector vanes are located on the side opposite to the liquid entry side.
(81) Said vertical axis hydraulic turbine with flow control is characterized in that when the movable parts of each of the corresponding six articulated deflector vanes of the hexagonal system is rotated so as to close the fluid input and output to and from the rotor between them, the mean curvature line of the moving parts of each of the six articulated deflector vanes form a circle of radius R viewed from above (if attached between the six vertices of the hexagon).
(82) The mean curvature line of the movable portion of each articulated deflector vane equals the arc passing through the middle of the fixed part of each articulated deflector vane and extends to the center of the regular hexagonal structure of radius R. This mean curvature line is equal to the arc corresponding to of the circumference of radius R. In the same way the arc passing through the middle of the fixed part of each articulated deflector vane and extending to the center of the regular hexagonal structure of radius R is also equal to the arc corresponding to of the circumference of radius R.
(83) By regulating the size of the fixed portion of each articulated deflector vane depending on the size of the rotor a higher or lower rotor speed is achieved for a flow equal to the incident fluid, that is, the smaller is the fixed part and the greater is the rotor size, the rotor rotation speed is slower, in the same manner, the greater is the size of the fixed part and the smaller the size of the rotor, the rotor rotation speed is higher.
(84) Generally for a hydraulic turbine of this type it is necessary using smaller fixed parts of the articulated deflector vane and larger rotor diameters, said fixed portion of each vane comprises arcs that continue the curvature of the moveable portion of said vanes on the portion closest to the moveable part, to then change the course and direction of its curvature at the final section near the rotor.
(85) Whereas the movable part of the articulated deflector vanes has a profile aerodynamically designed in the form of an aircraft wing, the same has the so-called upper surface on its upper portion and the lower surface on the bottom.
(86) Considering such a profile of the movable part of the articulated deflector vanes as an aircraft wing, it has an upper convex area on the top surface and a lower concave region on the lower surface separated by the mean curvature line, being the convex upper zone coupled to the lower concave region through a convex semicircle of radius r on the widest part of the profile where the radius r is known as a radius of curvature of the leading edge and forming an acute angle on the less wide portion of the profile, which corresponds to the outer end of the movable part which is known as trailing edge considering the airfoil.
(87) The moveable part of each articulated deflector vane has the mean curvature line equal to of a circle of radius R thus joining the six lines of curvature generate a circle of radius R.
(88) The fixed part of the articulated deflector vanes has a profile that continues the convex zone of the top surface of the moveable part and the concave zone of the lower surface of the moveable part in the lower zone, wherein in the final section close to the rotor of the fixed part, the curvature changes course and direction to allow a higher performance as the fluid enters tangentially to the circle of radius generated by the rotation of the rotor vanes, allowing, due to this curvature change, to capture the incoming fluid, which is forced into the space between two fixed vanes that narrows in the direction of the axis, so that the fluid flow is accelerated in the vicinity of the rotor, that gets energy to provide electricity.
(89) The fixed portion of the articulated deflector vanes in the area closest to the moveable part has a profile which continues the upper surface of the convex zone of the movable part in the upper area, and continues the concave area of the lower surface of the moveable part in the lower area, wherein in the final section of the rotor close to the fixed part the curvature changes course and direction, consequently the upper convex zone turns into a concave zone and the lower concave zone turns into a convex zone on said fixed part, in this way the upper convex zone joins the lower concave zone of the side of the moveable part by a concave semicircle of radius r where r>r and the upper concave area joins with the lower convex zone of the side of the rotor by a concave semicircle of radius Rt wherein Rt>Rt (Rt being the radius of the circle generated by the rotor vanes).
(90) The concavity of the semicircle of radius r of the moveable part side allows being r>r that the moveable part rotates about the corresponding axis parallel to the rotor axis which are in one of the six vertices of the hexagonal regular structure, so that no friction occurs between the concave and convex circular walls generated by the semicircles of radii r and r.
(91) The center of the concave semicircle of radius r and the center of convex semicircle of radius r are coincident.
(92) The concavity of the semicircle of radius Rt of the fixed portion of the rotor side being Rt>Rt allows that the rotor vanes that generate a circle of radius Rt when rotating do not rub the concave circular walls of the fixed part of the rotor side.
(93) The center of the semicircle of radius Rt and the center of the circumference Rt are coincident with the center of the regular hexagonal structure of radius R.
(94) It is preferred a parallelepiped-shaped hexagonal system without walls assembled with pipes, profiles or plates located at the edges so as not to have side walls to prevent air from entering or exiting when necessary.
(95) The pipes, profiles or plates which form the parallelepiped shaped regular hexagonal structure of radius R, may be of metal or any other material that supports the needs of the product depending on its size.
(96) Among the preferred materials are metals, plastics, wood or any material used in construction and combinations thereof.
(97) These same materials may be used in combination for the construction of the rotor and the articulated deflector vanes.
(98) The rotor of the vertical axis hydraulic turbine with flow control comprises a hollow rotor with more than three vanes wherein the vanes are shaped like a shark fin and have an axis of large size compared with vanes thereof, hollow rotors with six vanes may be used which generate an equal number of independent and distinct areas associated with each other where the vanes that comprise the same consist of vertical plates of a laminar configuration oriented in the same direction of rotation of the rotor to use the incident fluid in either direction.
(99) The shark fin-shaped vanes of the rotor comprise a triangular shape where the sides of the triangle not attached to the rotor have convex and concave curves respectively, so that water drives the rotor on the concave side of the vane and the excess of fluid passes over the convex area impacting on the concave region of the next vane (see
(100) If necessary and in accordance with the fluid flow present at the installation site of the hydraulic turbine, the rotor axis can be increased so as to include a greater number of vanes for improved flow control.
(101) In accordance with the theorem of Helmholtz it is preferable to use hollow rotors to avoid loss of kinetic energy of the impinging fluid in the hydraulic turbine of the invention.
(102) In order to modify the opening or closing of the moveable part of each articulated deflector vane, the hydraulic turbine described herein has electrical isolated, mechanical, hydraulic or pneumatic means allowing the closure of the movable portion thereof to be used in case of strong liquid streams that may damage the structure.
(103) Such electrical isolated, mechanical, hydraulic or pneumatic means allow the closure of the moveable part and can be actuated automatically when fluid flow exceeds a certain speed which is detected by a speed meter to determine the flow rate included in structure.
(104) To protect the integrity of the vertical axis hydraulic turbine with flow control, the same has a lifting and lowering means so that it can be raised above the level of the liquid in case the stream is at a speed that may damage the hydraulic turbine.
(105) The system can be shutdown in a very short time, whereby the same may be lifted above the liquid level rapidly.
(106) In this case, the hydraulic energy, actually the kinetic energy of the moving fluid, provides mechanical energy to the rotor which, through a mechanical drive system rotates the rotor of a generator, usually a three phase alternator, which converts rotational mechanical energy into electrical energy.
(107) The hydraulic generator described herein presents some technical features that can be designed to take advantage of the flow of liquid from any direction, when installed in the current of a river or the ocean, to produce energy, particularly electricity, being its installation and configuration simple, ideal for use in all sizes.
(108) The rotor vanes have a laminar configuration in a vertical position and a curved profile in a plan view similar to a shark fin, being said curved profile oriented in the same direction of rotation to use the liquid incident in any direction caused by the articulated deflector vane.
(109) This hydraulic generator has the advantage that it is not necessary to position it so that the central rotary axis is aligned with the incident direction of the liquid, but any direction of the incident liquid moves the shark fin type vanes of the rotor as any incident liquid is taken by the movable part of the articulated deflector vanes.
(110) To prevent deterioration of the machine in case of very heavy liquid streams it is provided that said device has a mechanism through which the moving vanes are closed so as to form a circumference with no surfaces exposed to liquid currents.
(111) Several vertical axis turbines with flow control can be built in the form of modules that can be stacked on a floating island-like structure or adjacent within the bed of a river or the ocean.
(112) Stacked modules may share the same axis of the rotors, when installed for examples on artificial islands, and an additional advantage in this case is that if the hexagonal structures are regularly offset this configuration may receive the fluid current enhancing its performance.
(113) Preferably a tower-shaped structure supports a hexagonal housing; said tower only acts to keep the turbine suspended and prevents damage to the rotor vanes. Preferably the tower may be mounted on a mechanism capable of changing of direction to optimize power and to adapt to a Tidal current. The tower structure allows that different depths of the tide are achieved by the hydraulic turbine, so that energy capture maximizes the output power. The design is adapted to meet the requirements of different rivers or seas wherein a hydraulic turbine is installed.
(114) For example it could be high and fine when installed at a depth of navigation in an estuary of a river, or low and wide when installed in the shallow area of a river that is not navigable. The means for generating energy are above and below the water tower so as to be easily accessible for maintenance and service. Considering the energy generating means are above the water, the system presents a low risk for navigation.
(115) The tower can be mounted on the bed of the river or the ocean through concrete blocks either in shallow rivers or estuaries or through mono pile or tripod structure in deep water.
(116) Preferably the tower may form one of the legs of a quay or a pontoon anchored or alternatively is hung in depth from a floating platform.
(117) The tower preferably has a symmetric design and operates bidirectionally allowing the capture of power in both directions (up and down on the tide) when located in a Tidal flow.
(118) The hydraulic turbine herein described may be supported by an anchored floating platform which can vary the equipment depth to appropriate currents.
(119) In a preferred embodiment, in the hydraulic turbine of the invention, the generator is out of the water so as to have advantages as regards insulation and maintenance.
(120) It is preferred in the hydraulic turbine according to this disclosure that the rotor is hollow to prevent loss of the kinetic energy of the fluid impinging on it.
(121) In the center of a vortex there are only parasitic forces on the moving fluids, either gases or liquids; a consequence of the theorem of Helmholtz reads in an ideal fluid at the center of the swirl there is no loss of energy; consequently this energy cannot be delivered to be used. It follows that the use of a hollow rotor proves to be more convenient for the hydraulic turbine described.
(122) Similarly in case of water or liquids more viscous than air wherein few revolutions are generated, rotors with many plates are preferred.
(123) It is preferred to use rotors of more than 3 vanes such as 6 vanes, vanes 10 or vanes 12.
(124) Differences and Advantages Over Vertical Axis Hydraulic Systems
(125) The associated movable and fixed vanes of this equipment can capture a several times greater mass of liquid and transmit its energy by increasing its speed impacting directly on the rotor vanes.
(126) By homogenizing the fluid stream, the pressure exerted on the vanes is more uniform avoiding stresses and vibration with loss of useful power and facilitating and simplifying its construction design.
(127) It allows regulating the start speed similar to a SAVONIUS system and by increasing the opening of the moving vanes speed and overall performance increases over a Darrieus system as it operates on resistance force and high speed, combining the advantages of traditional vertical axis hydraulic systems.
(128) Summarizing, this is a direct drive hydraulic turbine, which advantages are: Maximum use of water power as it transmits the vector by increasing the liquid velocity impacting on the rotor vanes directly. Increase due to narrowing of the fluid outlet from at the end of the fixed portion closest to the rotor of each of the articulated deflector vanes.
General Advantages Over Horizontal Axis Hydraulic Equipment Support on two or more sites of the rotor with the structure avoiding vibrations and fatigue of material. Little or minimal vibration. Stacked modular use. Unique rotor with offset vanes for an easier start and to avoid vibrations and parasitic frequencies. Generator that can be lifted over the level of liquid with obvious maintenance advantages. No risk of operators working underwater and at lower cost. Lubrication equipment (tanks, pumps, filters, etc.). Overall modular construction system in factory, allows a quick and secure assembly in permanent hydraulic currents either in rivers or open sea, etc., and difficult access areas. Use of conventional materials (resins and stainless steel only). Solid and robust construction with little sound and visual impact. Safe, as rotor vanes cannot detach as they are installed within the equipment protected by the fixed vanes, allowing use in oceans and rivers. It is the only equipment that can be designed in different heights and vane length according to the hydraulic currents present at the installation site. Being a structure with hexagonal base, the width of the vane plus the fixed vane width equals the width of the movable vane, being able to choose these parameters according to the best hydrodynamics. Suitable for marine and river use on platforms, ships, buoys, etc. Multidirectional, fully automatic, using hydraulic resources even in turbulences. Simple braking system without wear or rubbing, simply closing the moving vanes (see the top view of the closure system). Upon a weather alert, the system can be closed completely and shuts down; restart is immediate. The half-life and low cost of construction and maintenance far exceeds any hydraulic equipment today, allowing its use in financial plans associated to its operation, by issuing green and/or energy bonds. Allows affordable insurance.