Abstract
An absorber unit including at least one heater element, a transparent enclosure, and a mount for the enclosure. The mount includes an inner tube and an outer tube. The invention also relates to a mirror unit including at least one reinforcement having a concave reinforcement element, wherein an upper mirror is fastened to an inner side of the reinforcement element and/or a lower mirror is fastened to an outer side of the reinforcement element. The invention also relates to a solar collector or solar installation including at least one support arm for receiving a mirror unit and/or an absorber unit.
Claims
1-37. (canceled)
38. An absorber unit for a solar collector or a solar system, comprising: at least one heating element configured to guide a heat transfer medium; a translucent enclosure enclosing at least one of the at least one heating elements, preferably all of the heating elements; and a holder for the enclosure, the holder comprising an inner tube and an outer tube; wherein the enclosure is fastened to the outer tube; and wherein at least one of a supply line and a return line for the heat transfer medium is guided in the inner tube.
39. The absorber unit according to claim 38, wherein the enclosure is formed by a glass dome.
40. The absorber unit according to claim 38, wherein: an annular gap is formed between the inner tube and the outer tube, the annular gap opening into a receiving volume of the enclosure; and the inner tube is closed at an end facing the receiving volume.
41. The absorber unit according to claim 40, wherein a receptacle for the heating element closes the inner tube at an end facing the receiving volume.
42. The absorber unit according to claim 40, wherein the annular gap is closed at an end of the holder facing away from the receiving volume.
43. The absorber unit according to claim 38, wherein the inner tube is welded to the outer tube at the end of the holder facing away from the receiving volume.
44. The absorber unit according to claim 40, wherein the inner tube projects beyond the outer tube with an end facing the receiving volume.
45. The absorber unit according to claim 38, wherein the heating element is formed by a heat exchanger or comprises the heat exchanger.
46. The absorber unit according to claim 38, wherein the heating element is formed by or comprises a continuous-flow heater with tubular coils.
47. The absorber unit according to claim 38, wherein the heating element is formed by or comprises a two-phase thermosiphon.
48. The absorber unit according to claim 38, wherein the heating element is formed by a heat pipe or comprises the heat pipe.
49. The absorber unit according to claim 48, wherein: the heat pipe comprises a pressure vessel, a capillary suction layer or lining, and an outer tube for discharging the heat transfer medium from the pressure vessel; the outer tube has an outlet opening opening outside the pressure vessel, and an inner tube for supplying the heat transfer medium into the pressure vessel; and the inner tube has a first outlet and a second outlet, the first outlet and second outlet opening inside the pressure vessel.
50. The absorber unit according to claim 48, wherein: a distributor unit with a plurality of receptacles is provided, in or on which receptacles a heat pipe is fastened; and the distributor unit establishes a connection between the inner tube and the outer tube of the heat pipes accommodated in or on the receptacles, and the supply line and the return line, respectively.
51. The absorber unit according to claim 50, wherein the distributor unit forms the receptacle for the heating element.
52. The absorber unit according to claim 38, wherein: the absorber unit comprises at least one reflector; and the at least one heating element is arranged between the reflector and the enclosure.
53. The absorber unit according to claim 52, wherein the reflector is fastened to the receptacle for the heating element or to the distributor unit and the reflector extends in the longitudinal direction of the heating element.
54. The absorber unit according to claim 38, wherein the at least one heating element is connected to heat-conducting vanes or formed integrally therewith in order to increase the proportion of solar radiation absorbed by the heating element.
55. The absorber unit according to claim 54, wherein the heat conducting vanes of adjacent heating elements touch one another or are formed integrally with one another.
56. The absorber unit according to claim 54, wherein the heat-conducting wings have solar cells on an outer side facing the enclosure.
57. The absorber unit according to claim 38, wherein provided on the holder are at least one of: a counter flange for screwing the absorber unit to a holding flange of a support arm of the solar collector or the solar system; holding bolts for engaging in guide slots of a support arm of the solar collector or the solar system; and guide slots for receiving holding bolts of a support arm of the solar collector or the solar system.
58. The absorber unit according to claim 38, wherein a line outlet of the flow line and/or the return line has threads for fastening one or more sliding sleeves in order to sealingly connect at least one of the flow line and the return line to an internal piping of a support arm of the solar collector or the solar system.
Description
BRIEF DESCRIPTION OF THE DRAWINGS
[0058] Preferred embodiments of the present invention are described in more detail below with reference to schematic drawings; however, the following description is not intended to exhaustively represent or restrict the concept of the invention. It shows:
[0059] FIG. 1 a mirror unit in exploded view,
[0060] FIG. 2 the mirror unit in the assembled state,
[0061] FIG. 3a, 3b two variants of a central stiffener for the mirror attachment,
[0062] FIG. 4a, 4b a bayonet lock,
[0063] FIG. 5 a section of a support arm with the retaining flange for the bayonet lock,
[0064] FIG. 6a, 6b a section of the support arm with a connection flange,
[0065] FIG. 7 two mirror variants assembled with the stiffener,
[0066] FIG. 8 the segmental structure of a mirror,
[0067] FIG. 9a, 9b, 9c, 9d four absorber units,
[0068] FIG. 10 the mirror geometry with the resulting angles of incidence,
[0069] FIG. 11 a partial view of an absorber unit,
[0070] FIG. 12a, 12b, 12c the structure of a heat pipe and the assembly of an evaporator unit,
[0071] FIG. 13a, 13b the removal of the heat pipes with heat conducting wings,
[0072] FIG. 14 the structure of a sliding sleeve for expansion compensation in section,
[0073] FIG. 15 the installation of the mirror units in a collector system with two mirrors,
[0074] FIG. 16 the packaging of an absorber unit for transport,
[0075] FIG. 17 a collector system with removed mirrors,
[0076] FIG. 18a, 18b Details of the bayonet lock of an absorber unit,
[0077] FIG. 19a, 19b a cleaning device with three fixed positioned nozzle heads,
[0078] FIG. 20 a cleaning device with two rotatable nozzle heads,
[0079] FIG. 21 the structure of a rotary distributor of the cleaning device.
DETAILED DESCRIPTION
[0080] FIG. 1 shows the assembly sequence of a mirror unit according to the invention.
[0081] The central stiffener 1 of the mirror has a quick release fastener with an annular locking opening 9. A diameter of the annular closure opening 9 is slightly larger than a maximum diameter of an absorber unit 3. A support arm comprises a holding flange 2 with bolt locking, a connection flange 11, a support tube 10 and an internal piping 8. The mirror or the stiffener 1 as part of the mirror can be guided over the absorber unit 3 or threaded in and out. The retaining flange 2 of the support arm and the stiffener 1 form a bayonet lock, which can be opened by opening a locking bolt 4 by rotating the mirror or its stiffener 1 by a small angle. The bayonet lock or the holding flange 2 is sealed, whereby a seal 5 also facilitates the centering of the stiffener 1 on the holding flange 2. The absorber unit 3 can be mounted on the support flange 2 of the support arm. The hydraulic connection is made via two sliding sleeves 6 of the internal piping 8, which sliding sleeves 6 are screwed to line outlets 7 of the absorber unit 3 or are connected to them in another way. The sliding sleeves 6 are sealing when screwed together and simultaneously serve as expansion compensators which absorb the thermal expansion of the internal piping 8 and/or the line outlets 7 which occurs during normal operation of the device.
[0082] FIG. 2 shows a mirror unit in the assembled state. The absorber unit 3 is attached to the holding flange 2 of the support arm. The counter flange 12 of the absorber unit 3, via which counter flange 12 the absorber unit 3 is fastened to the holding flange 2 of the support arm, has blind holes in order to prevent corrosion caused by water penetrating at the screw connection points. Alternatively, the absorber unit 3 can also be connected to the support arm or its holding flange 2 by means of a bayonet lock, cf. FIGS. 18a, 18b. The sliding sleeves 6 are pushed forward, in the direction of the line outlets 7, and screwed to the line outlets 7. The mirror or its stiffener 1 can be mounted after the absorber units 3 have been installed. Preferably, the mirrors are mounted last.
[0083] The collector system can be placed in an easy-to-install position so that the mirrors are pointing downwards. Pushing the mirrors with their stiffeners 1 over the absorber units 3 and locking them in the bayonet lock is a simple and quick job.
[0084] FIGS. 3a and 3b show two variants of a central stiffener 1 for the mirrors. In variant 1 (FIG. 3a), the annular closure opening 9 is formed in one piece with the mirror stiffener 1, in particular welded; in other words: a closure element 9a forming the closure opening 9 is formed in one piece with a stiffening element 1a of the stiffener 1, in particular welded.
[0085] An upper mirror 14 can be glued to the stiffener 1, for example in such a way that the upper mirror 14 contacts the closure element 9a and/or is also connected, in particular glued, to the closure element 9a. Variant 2 (FIG. 3b) shows a stiffener 1 designed as a die-cast part 13, wherein the annular closure opening 9, which is made of steel for example, is inserted into the die-cast part 13 during casting and is thereby connected to it. The upper mirror 14 and the lower mirror 15 are glued to the die-cast part 13, which forms the stiffener 1 or the stiffening element 1a. The stiffening element 1a or the stiffener 1 can also be designed as a plastic part, in particular as a plastic injection-molded part. A foam filling 16 is provided between the upper mirror 14 and the lower mirror 15. These mirrors are very light and highly rigid. The foam 16 also serves as thermal insulation. This is a beneficial effect as it makes it possible to operate the collector systems without frost protection. To achieve this, heat loss through the pipes and absorber 3 must be minimized. With the light concentration, vacuum technology and also insulated mirrors that close together in the resting position, it is easy to prevent freezing. In most cases, the heat capacity of the piping systems and the working medium should be sufficient to avoid the need for additional heating. If the temperature If the temperature nevertheless drops to a critical value, warm medium can be buffered, for example from an external storage tank, in particular a 2-phase storage tank. In any case, the heat required for this will be minimal. It definitely has the ability to withstand extremely low temperatures for any length of time, even in areas where undiluted antifreeze would freeze.
[0086] In general, the upper mirror 14 can be attached, in particular glued, to an inner side 55 of the stiffening element 1a and/or the lower mirror 15 can be attached, in particular glued, to an outer side 56 of the (concave) stiffening element 1a.
[0087] FIG. 4a shows the bayonet lock in an exploded view; FIG. 4b in an assembled state.
[0088] The locking element 9a forms an outer ring of the bayonet lock and has insertion openings 21, a jaw 17 and a locking bolt 4, wherein the locking bolt 4 can be screwed in and out. If the mirror is in the locking position, i.e. the retaining bolt 18 of the retaining flange 2 is at the stop to the jaw 17, the locking bolt 4 is screwed in. In its screwed-in state, the locking bolt 4 prevents rotation of the locking element 9a relative to the retaining flange 2. In the connected state (FIG. 4b) there is a gap 19 of approximately 3.5 mm between the annular closure opening 9 and the retaining flange 2. This is twice the size of a laser cut. This means that both components can be cut out of one plate in a way that saves material and reduces waste, while still leaving enough material for mechanical processing. The retaining bolts 18 are pressed into front-side bores in the retaining flange 2 or are formed integrally with the retaining flange 2. Ideally, the retaining bolts 18 are hardened. In the variant shown, the holding flange 2 has four through holes 22 for fastening the absorber unit 3 or the counter flange 12. The retaining flange 2 is a welded part of the support arm, or can be formed integrally with it. The closure element 9a has a guide recess 20 for receiving the bolts 18, which guide recess 20 is accessible via insertion openings 21 for the bolts 18.
[0089] FIG. 5 shows a section of the support arm with the holding flange 2, on which holding flange 2 the holding bolts 18 are provided as part of the bayonet lock. The retaining flange 2 has a seal 23 at least on the front side, which seal 23 in the assembled state fills the annular gap 19 between the retaining flange 2 and the closure element 9a of the stiffener 1. The seal 23 also serves to center the mirror or its stiffening 1 on the holding flange 2. In order to cover the insertion openings 21 of the closure element 9a, the seal 23 has a radially outwardly extending projection to form a sealing lip 24. In the embodiment shown, the projection has a semicircular profile and engages under the closure element 9a in its fastened state and/or rests against it. The outer sealing lip 24 rests on the rear or underside of the closure opening 9 or the closure element 9a and prevents dirt and water from penetrating into the guide recess 20 of the bayonet lock via the insertion openings 21.
[0090] FIGS. 6a and 6b show apart of the support arm with the connection flange 11 in two views. What can be seen is the internal piping 8 8 hydraulic piping, which is connected, preferably welded, to a sealing flange 26 of the support arm. In order to avoid a thermal bridge, a suspension of the sealing flange 26 is mounted on the connecting flange 11 via insulating jaws 27. Although not shown here, it is understood that the internal piping 8 hydraulic pipes can be well insulated or foamed. The insulation, which can be seen here on the pipes 8 in the indicated area, is incomplete and is only intended for the high-temperature area in the immediate vicinity of the pipe. The connection flange is used to attach the support arm to a post or to a tracking unit of a solar or collector system; the sealing flange 26 is used to create a sealing (fluidic) connection between the piping of the support arm and a distribution unit of the solar or collector system cf. FIG. 15.
[0091] FIGS. 7a and 7b show two mirror variants assembled with the stiffener 1. Variant FIG. 7a shows the stiffener 1 with the upper mirror 14, which can be mounted self-supporting on the stiffener. Here variant 1 of the stiffener 1, as shown in FIG. 3, is used. Variant 2 FIG. 7b shows an assembled mirror with upper mirror 14 and lower mirror 15, wherein upper mirror 14 and lower mirror 15 are in turn attached to the stiffening element 1a. The stiffener 1 is designed according to variant 2, as shown in FIG. 3. The lower mirror 15 does not have to cover the upper mirror 14 completely, but can be formed by several segments that do not cover the entire mirror circumference. The stiffener 1 or the stiffening element 1a and the foam 16 or another intermediate insert can be seen at the edges of the lower mirror 15. A continuous covering of the lower mirror 14 naturally leads to the desired thermal insulation, as already mentioned above, and is therefore preferred.
[0092] FIG. 8 shows a segmented structure of a mirror. The segments of the upper and lower mirrors 14, 15 are glued or joined in an overlapping manner. This can be done by Stiffening element 1a according to variant 1 or variant 2 can be used. The advantage is that the costs for the deep-drawing tool for a segment are many times lower than for a full mirror. Furthermore, the degree of deformation is relatively low (a single pressing is sufficient).
[0093] In general, therefore, an embodiment is preferred in which a mirror with a stiffening element 1a is provided, to which stiffening element 1a either only an upper mirror 14 or an upper mirror 14 and a lower mirror 15 is/are attached, preferably glued, wherein the upper mirror 14 and/or lower mirror 15 are not designed as a full-surface mirror, for example as a paraboloid mirror, but only in segments. This is independent of other features described in the present application.
[0094] FIG. 9a, 9b, 9c and 9d show four absorber units 3. These differ in the heating systems used. Variants 1 and 2 have instantaneous water heaters with coiled tubing. Variants 3 and 4 have heat pipes. Variant 4 shows the possibility of equipping it with solar cells. The tube coils of the embodiment of the absorber unit shown in FIG. 9b have, in comparison to the embodiment shown in FIG. 9a, a larger diameter in order to be able to carry a higher (steam) volume.
[0095] FIG. 10 shows the mirror geometry of a mirror according to the invention with the resulting angles of incidence and beam paths to the absorber unit 3 arranged centered on the mirror. The subdivision of the irradiation shown is chosen such that equal-sized normal irradiation areas are covered. As can be seen from the example of solar cells, the result is that the radiation intensity on the solar cells is constant. The angle of incidence on the glass cover is approximately normal in all areas.
[0096] FIG. 11 shows a detail of an absorber unit 3 according to the invention.
[0097] What is essential is the double-walled support of the glass frame with a vacuum ring gap between the inner tube 32 and the outer tube 31. The glass 30, the glass enclosure of the absorber unit 3, has no thermal load since it is connected to the outer pipe 31 of the pipe-in-pipe system. The inner tube 32 and the outer tube 31 are welded at the ends, preferably at the ends facing away from the glass dome 30.
[0098] Regardless of the heater variant used (see FIG. 9a, 9b, 9c, 9d and related description), the glass dome 30 can be attached to the outer tube 31 of the tube-in-tube System which forms a vacuum ring gap, wherein the inner tube 32 can protrude slightly beyond the outer tube 31 and can be connected or welded in a vacuum-tight manner to a welding receptacle 25 of the solar heater. From the welding receptacle 25, the supply and return lines can be led through the inner pipe 32 into the outside space. At the ends of the supply and return lines, i.e. at line outlet 7, 6 threads are provided for screwing the sliding sleeves. The annular gap between the inner tube 32 and the outer tube 31 can be sealed vacuum-tight at the lower tube ends facing away from the glass dome 30. The welds of the solar heaters form thermal bridges to the outside. Since the heat flow through the double-walled pipe (pipe-in-pipe system) with poor heat conduction, for example made of stainless steel, has a long way to go to the fastening or to the glass frame, whether it is a bayonet lock or a fastening flange, these areas are to be considered as quasi cold. The heat flow is minimal. Damage to the glass frame due to heat and corresponding tensile stresses can be ruled out.
[0099] FIG. 12a shows the structure of a heat pipe according to the invention, and FIGS. 12b and 12c show the assembly in the heating system and in the absorber unit 3 solar heater, respectively. The heat pipes have a pressure vessel 33, a capillary suction lining 37, a steam-dissipating outer tube 35 with an outlet opening 36 and an inner tube 38 for the condensate supply with a lower outlet 34 and an upper outlet 39. The inner tube 38 and the outer tube 35 are welded. The capillary suction lining 37 has bottoms with sealing pipe penetrations. The heat pipes are inserted into a distribution unit 40 with, for example, five, receptacles 40a and soldered. In order to be able to completely absorb the incident radiation or to direct it to a rear side of the heat pipes, a reflector 41 can be provided, which reflector 41 can extend parallel to a longitudinal axis of the heat pipes from the distribution unit 40 and can be arranged, for example, in a sleeve-shaped manner in an inner region surrounded by the heat pipes. However, the reflector 41 does not have to have a cylindrical cross-section; any other cross-sections are also conceivable, for example the cross-section of an approximate pentagon as shown in FIG. 12c. The specific shape of the collector 41 can be selected depending on the heating elements 28 used and their geometry so that radiation passing by the heating elements 28 is redirected to the back of the heating elements 28.
[0100] FIG. 13a shows the removal of the heat pipes with heat conducting fins 42. In order to be able to completely absorb the incident solar radiation, heat-conducting wings 42 can be provided. These can also be equipped with solar cells. The heat conducting wings 42 can be pushed or pressed onto the pressure vessels 33; for this purpose, the heat-conducting wings 42 can each have a receiving opening, which receiving opening is matched to the diameter of the pressure vessels 33 of the heat pipes. The receiving openings of the heat conducting wings 42 can also be dimensioned such that a press fit on the pressure vessel 33 results, whereby the pressure resistance of the heating elements 28, in particular heat pipes, can be further improved. The heat conducting wings 42 can be dimensioned such that the heat conducting wings 42 of adjacent heat pipes are in contact with each other when the heat pipes are connected to the distribution unit 40 as intended; alternatively, the heat conducting wings 42 attached to the individual heat pipes can also be formed integrally with each other, as shown in FIG. 13b.
[0101] FIG. 14 shows a sectional view of a connection between the inner piping 8 of the support arm and the line outlet 7 of the absorber unit 3 by means of the sliding sleeve 6 for expansion compensation. This is basically a stuffing box system. For a sealing sleeve 43 of the sliding sleeve 6 preferably a temperature-resistant material with good sliding properties is used. At temperatures below 250 C., Teflon can be used, for example, and at higher temperatures, ceramic materials.
[0102] FIG. 15 shows a collector system with two mirrors, whereby in the illustrated assembly state only the left support arm is provided with a mirror and no mirror is mounted on the right support arm. For assembly and disassembly, the support arms are positioned so that the mirrors are pointing downwards as shown.
[0103] FIG. 16 shows the packaging of an absorber unit 3 for transport. The two-part design of the packaging, the housings of which are preferably made of plastic, in particular polystyrene, expanded polystyrene and/or extruded polystyrene, and the detachable connection of the two housing parts of this packaging, for example by means of adhesive tape, make it possible to reuse the packaging.
[0104] FIG. 17 shows a collector system with removed mirrors and packaged absorber units 3.
[0105] The packaging serves to protect the glass domes 30 and the heat pipes. The system is designed to accommodate four mirror units and has four support arms for this purpose. As can be seen, the areas exposed to wind are greatly reduced, especially when the mirrors are removed.
[0106] FIGS. 18a and 18b show a bayonet lock via which the support arm is connected to an absorber unit 3. This simplifies the assembly and disassembly of the absorber unit 3. Retaining bolts 44 Bolts of the absorber unit 3 are inserted into guide slots 45 of the support arm and locked by twisting. Subsequently, a seal 46, which seal 46 can already be attached to the absorber unit 3 before it is connected to the support arm, is pushed over the retaining bolts 44 or the guide slots 45. An anti-twisting device is not provided because the hydraulic connection does not allow any twisting, i.e. the absorber unit 3 can no longer be twisted after the fluidic connection between the line outlet 7 and the inner piping 8 has been established, at least not to such an extent that it would be possible to guide the retaining bolts 44 out of the guide slots 45. The variant with the bayonet lock is more cost-effective and practical than the variant in which the absorber unit 3 is screwed to the holding flange 2 (cf. FIGS. 1 and 2). Thus, if there is concern that the glass 30 of the absorber unit 3 will break because strong storms are forecast, the absorber unit 3 can be dismantled by one person in a few simple steps after opening both sliding sleeves 6. For this purpose, a part of the support tube 10 located in the area of the sliding sleeves 6 can be formed by a removable cover, which cover can preferably be provided with a seal.
[0107] FIGS. 19a and 19b show the installation of a cleaning device with a nozzle unit 47 with three fixedly positioned nozzle heads. The nozzle unit 47 must be removed before removing the mirror.
[0108] FIG. 20 shows the installation of another cleaning device with a nozzle unit 47 with two rotatable nozzle heads. The rotation is made possible by a rotary distributor 49. The nozzle units 47 can be quickly assembled and disassembled by loosening a seal, in particular a stuffing box seal 48.
[0109] FIG. 21 shows a detail of the rotary distributor 49. The rotary distributor 49 has an inner ring with a channel 51 and an outer ring 52. The supply line 50 of a cleaning liquid is fed into the inner ring 51. The discharge takes place via nozzle 53 with a bore. The nozzles 53 are guided in the channel and thus position the outer ring 52 on the inner ring 51. A seal is not required as a precise fit is sufficient. A small gap may even be desirable, as the rotation should be smooth and the leakage of the cleaning fluid can serve as lubrication.
[0110] A mirror unit is preferred in which the mirrors have a central stiffener 1 with an annular quick-release fastener 9a, so that they can be mounted and dismounted purely by twisting the retaining flange 2 of the support arm.
[0111] Preferred is a mirror unit in which the holding flange 2 has a seal 5 for the bayonet lock.
[0112] Preferred is a mirror unit in which the mirror consists of or comprises an upper mirror 14 and a lower mirror 15.
[0113] Preferred is a mirror unit in which a foam or intermediate insert 16 is provided between the upper mirror 14 and the lower mirror 15.
[0114] Preferred is a mirror unit in which the upper mirror 14 and/or lower mirror 15 are arranged in segmental overlapping manner.
[0115] Preferred is a mirror unit in which the absorber unit 3 has a bayonet lock for connecting the absorber unit to the support arm.
[0116] Preferred is a mirror unit in which the absorber unit 3 has a double-walled holder 29 with an outer tube 31 and an inner tube 32.
[0117] A mirror unit is preferred in which sliding sleeves 6 are provided for the hydraulic connection of the absorber unit 3 to the inner piping 8 of the support arm.
[0118] A mirror unit is preferred in which the absorber units 3 have heat pipes, the heat pipes comprising a pressure vessel 33, a capillary suction lining 37, a steam-discharging pipe 35 with an outlet opening 36 and an inner pipe 38 with a lower outlet 34 and/or an upper outlet 39.
[0119] A mirror unit is preferred in which the heat pipes are accommodated in receptacles of a distribution unit 40, in particular inserted and soldered.
[0120] A mirror unit in which a reflector 41 is provided is preferred.
[0121] Preferred is a mirror unit in which heat-conducting wings 42 are pushed onto the heat pipes or are attached to them.
[0122] A mirror unit is preferred in which a cleaning device with a rotary distributor 49 is provided, comprising an inner ring with a channel 51, an outer ring 52, a supply line 50 and nozzles (or bolts) 53 with bores, wherein the nozzles 53 (or bolts 53) merge into line nozzles on which the nozzle units 47 of the cleaning device are mounted.
LIST OF REFERENCE NUMBERS
[0123] 1 stiffening [0124] 1a stiffening element [0125] 2 holding flange [0126] 3 absorber unit [0127] 4 locking bolt [0128] 5 seal [0129] 6 sliding sleeve [0130] 7 line output [0131] 8 internal piping [0132] 9 shutter opening [0133] 9a locking element [0134] 10 support tube [0135] 11 connection flange [0136] 12 counter flange [0137] 13 die-cast part [0138] 14 upper mirror [0139] 15 lower mirror [0140] 16 foam filling [0141] 17 jaw [0142] 18 retaining bolt [0143] 19 annular gap [0144] 20 guide recess [0145] 21 slot openings [0146] 22 through holes [0147] 23 seal [0148] 24 sealing lip [0149] 25 welding receptacle [0150] 26 sealing flange [0151] 27 insulating jaws [0152] 28 heating element [0153] 29 holder [0154] 30 glass (dome) [0155] 31 outer tube [0156] 32 inner tube [0157] 33 pressure vessel [0158] 34 lower outlet [0159] 35 outer tube of heat pipe [0160] 36 outlet opening [0161] 37 lining [0162] 38 inner tube of heat pipe [0163] 39 upper outlet [0164] 40 distribution unit [0165] 40a holder for the distribution unit [0166] 41 reflector [0167] 42 heat conducting wings [0168] 43 sealing sleeve [0169] 44 retaining bolt [0170] 45 guide slots [0171] 46 sealing [0172] 47 nozzle unit [0173] 48 stuffing box seal [0174] 49 rotary distributor [0175] 50 supply line [0176] 51 inner ring channel [0177] 52 outer ring [0178] 53 support [0179] 54 recording volume [0180] 55 inside [0181] 56 outside
