CN214307656U - Secondary reflection fixed-focus disc type light-gathering heat storage system - Google Patents
Secondary reflection fixed-focus disc type light-gathering heat storage system Download PDFInfo
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- CN214307656U CN214307656U CN202120162020.4U CN202120162020U CN214307656U CN 214307656 U CN214307656 U CN 214307656U CN 202120162020 U CN202120162020 U CN 202120162020U CN 214307656 U CN214307656 U CN 214307656U
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- Y—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
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/40—Solar thermal energy, e.g. solar towers
- Y02E10/47—Mountings or tracking
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Abstract
The utility model discloses a fixed focus type's of secondary reflection dish formula spotlight heat-retaining system relates to solar thermal energy utilization technical field. The utility model comprises an elliptical light-gathering reflector, a fused salt heat storage tank, a dish light-gathering reflector and parallel rays emitted by the sun; the reflecting mirror surface of the elliptical light gathering reflector faces downwards and is arranged at the center of the field; the two focuses of the elliptical light gathering reflector are respectively a first focus F1 and a second focus F2 from top to bottom; the molten salt heat storage tank is arranged right below the elliptical light gathering reflector and is positioned on a second focus F2 of the elliptical light gathering reflector; the focal point of the dish-type light-gathering reflector is a third focal point F3, and the third focal point F3 is coincident with the first focal point F1. The utility model discloses an effect of oval formula spotlight reflector, fused salt heat storage jar and dish formula spotlight reflector has solved current dish formula spotlight focus and has removed, and the problem of focus in the midair.
Description
Technical Field
The utility model belongs to the technical field of solar thermal energy utilizes, especially relate to a fixed focus type's of secondary reflection dish formula spotlight heat-retaining system.
Background
The photo-thermal power generation mainly adopts various forms such as groove-type light condensation, disc-type light condensation and tower-type light condensation, and each place can be adjusted to the local conditions according to the characteristics of the place, so that the engineering cost is reduced. Molten salt is often required for solar-thermal power generation. Molten salts are molten liquids of salts, forming molten inorganic salts, the solid state of which is mostly ionic crystals, which melt at high temperatures to form ionic melts. The basic principle of fused salt power generation is that the heat of the sun is collected, the energy is transferred into salt to be melted, the temperature of the salt can reach hundreds of degrees centigrade, and then the salt transfers heat through the salt.
In the whole power plant, three main parts are involved, namely solar energy collection, molten salt storage and energy exchange and conversion. The high-temperature liquid salt circularly flows, water is changed into steam through heat exchange circulation, and then the steam is used for pushing a steam turbine, so that power generation is realized. Compared with electrochemical energy storage, the fused salt energy storage has more advantages in the aspects of renewable energy consumption, clean energy heating and the like. The existing disc type photo-thermal device has the following problems: 1. the focus is not fixed; 2. because the focus is in motion all the time, the focus cannot be communicated with a heat storage system through a pipeline, heat cannot be stored, and 24-hour continuous power generation cannot be realized.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a fixed focus formula's of secondary reflection dish formula spotlight heat-retaining system, through oval-shaped spotlight reflector, fused salt heat storage jar and dish formula spotlight reflector's effect, solved that current dish formula light and heat device focus is unfixed, can't pass through pipeline and heat storage system UNICOM, unable heat accumulation, the problem of the continuous electricity generation of the unable 24 hours of accomplishing.
In order to solve the technical problem, the utility model discloses a realize through following technical scheme:
the utility model relates to a secondary reflection fixed focus type disc-type light-gathering heat-storage system, which comprises a light-gathering heat-storage subsystem comprising an array; each light-gathering and heat-storing subsystem comprises an elliptical light-gathering reflector, a molten salt heat storage tank, a disc light-gathering reflector and parallel rays emitted by the sun; the molten salt heat storage tanks of the array are communicated through a conveying pipeline and are converged into a large molten salt heat storage tank; the reflecting mirror surface of the elliptical light gathering reflector faces downwards and is arranged at the center of the field; the two focuses of the elliptical light gathering reflector are respectively a first focus F1 and a second focus F2 from top to bottom; the molten salt heat storage tank is arranged right below the elliptical light gathering reflector and is positioned on a second focus F2 of the elliptical light gathering reflector;
the focal point of the dish-type light-gathering reflector is a third focal point F3, and the third focal point F3 is coincided with the first focal point F1; the parallel light rays are incident to the reflecting surface of the disc-type light-gathering reflector and then focused to the third focus F3, namely the first focus F1 of the elliptical light-gathering reflector, and the elliptical light-gathering reflector reflects all primary reflected light rays passing through the first focus F1 to the molten salt heat storage tank on the second focus F2, so that molten salt in the molten salt heat storage tank is heated, and the ground fixed-focus type light-gathering heat storage effect is achieved.
Further, the reflecting mirror surface of the elliptical light gathering reflector is one of elliptical shape and ellipsoidal shape, so that the primary reflected light passing through the first focal point F1 can be reflected by the second focal point F2, thereby heating the molten salt in the molten salt heat storage tank.
Further, the dish-type light-gathering reflector is a parabolic light-gathering reflector, and the reflecting surface of the dish-type light-gathering reflector is a parabolic reflecting surface and is used for gathering all parallel light rays and reflecting the parallel light rays to the first focus F1 of the elliptical light-gathering reflector.
Further, the dish-type light-gathering reflector is replaced by a plane reflector or a concave reflector.
Furthermore, the number of layers of the annular arrangement of the disc type light-gathering reflectors is at least 1, the light-gathering capacity and the light-gathering quantity in unit time can be greatly improved through the disc type light-gathering reflectors arranged in multiple layers, so that the temperature in the fused salt heat storage tank is rapidly increased to enter a power generation working state, and the power generation efficiency is improved.
Furthermore, corrosion-resistant materials are laid on the inner surface of the molten salt heat storage tank, so that molten salt in the molten salt heat storage tank is prevented from corroding the molten salt heat storage tank, and dangers are prevented; the molten salt heat storage tank is provided with a heat insulation layer along the outer surface thereof, and is used for preventing heat in the molten salt heat storage tank from being transferred outwards and improving the solar power generation efficiency; be provided with the electric core module that is used for realizing the even conduction of heat in the fused salt heat storage jar to heat transfer is more even when making in the fused salt heat storage jar intensification, avoids local high temperature or crosses lowly as far as possible.
Furthermore, the elliptical light gathering reflector is fixed below a mounting frame; the mounting rack can be vertically and rotatably limited in the semi-annular track; the semi-annular track is horizontally and rotatably arranged below the walking frame; the walking frame can be arranged among the towers in a vertically moving mode.
Furthermore, the elliptical light gathering reflector is mounted with the mounting frame through a horizontal reinforcing rod piece and a vertical reinforcing rod piece; a semicircular plate is fixed at the top of the mounting frame through a support rod, driving wheels are uniformly distributed on the outer side of the semicircular plate, the elliptical light gathering reflector is driven to slowly adjust the orientation of the elliptical light gathering reflector through the work of the driving wheels, the optimal light gathering reflection state is achieved, and adjustment according to the construction form of the molten salt heat storage tank is facilitated.
Furthermore, a main supporting shaft is fixed at the center of the top of the semi-circular track, and a first gear is fixed on the main supporting shaft; the top of the semi-annular track is annularly provided with a plurality of auxiliary support shafts around the main support shaft, and the auxiliary support shafts are used for supporting the weight of the semi-annular track in an auxiliary manner and are matched with the semi-annular track to rotate to be adjusted to the most appropriate position; a limiting block is fixed at the top of the auxiliary supporting shaft; the ends of the tracks on the inner side of the semi-annular track are fixed with anti-collision blocks; and the anti-collision block is provided with a buffer piece for buffering and preventing collision when the mounting frame is adjusted.
Furthermore, a driving motor is installed at the top of the walking frame; a second gear meshed with the first gear is fixed on the output shaft of the driving motor; a limiting track matched with a limiting block is fixed at the bottom of the walking frame, and the semi-annular track is driven to rotate through the work of a driving motor, so that the elliptical light gathering reflector is driven to adjust the position of the elliptical light gathering reflector to reach a set state; the periphery of the walking frame is provided with a plurality of groups of walking wheels and is connected with a driving control device, the elliptical light gathering reflector, the mounting frame, the semi-annular track, the walking frame and the tower frame are controlled to lift together through the driving control device, when the devices break down, the devices can conveniently fall down for maintenance, then the devices rise to a set position, and meanwhile the position of the second focus F2 can be adjusted according to the height of the molten salt heat storage tank.
The utility model discloses following beneficial effect has:
1. the utility model discloses a focus on first focus F1 after parallel light jets into dish formula spotlight reflector's plane of reflection, oval formula spotlight reflector will reflect through all primary reflection light of first focus F1 to be located the fused salt heat storage tank on second focus F2 to the fused salt in the heating fused salt heat storage tank, thereby realize the fixed focus formula spotlight heat-retaining effect on ground; and the problems that the focus of the existing disc type photo-thermal device is not fixed, cannot be communicated with a heat storage system through a pipeline, cannot store heat and cannot realize 24-hour continuous power generation are solved.
2. The utility model discloses a be provided with the electric core module that is used for realizing the even conduction of heat in the fused salt heat storage jar to make the interior intensification of fused salt heat storage jar more even of heat transfer, avoid local temperature too high or cross low as far as possible.
3. The utility model discloses a but mounting bracket vertical pivoted is spacing in the semi-circular orbit, drives oval formula spotlight reflector through drive wheel work and slowly adjusts its orientation, reaches the state of best spotlight reflection, also is convenient for adjust according to the construction form of fused salt heat storage jar.
4. The utility model discloses a but walking frame up-and-down motion set up between a plurality of pylons, walking frame week side is provided with a plurality of groups travelling wheel to be connected with drive control device, through drive control device control oval-shaped formula spotlight reflector, mounting bracket, semi-circular track, walking frame and pylon go up and down together, can be convenient when these equipment break down maintain, then rise to the settlement position, also can be according to the position of the height control second focus F2 of fused salt adjustment heat storage tank simultaneously.
Of course, it is not necessary for any particular product to achieve all of the above-described advantages at the same time.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is a schematic structural view of a secondary reflection fixed-focus type disc-type light-gathering heat-storage system of the present invention;
FIG. 2 is a schematic view of the mounting frame, the semi-circular track, the walking frame and the tower;
in the drawings, the components represented by the respective reference numerals are listed below:
the solar energy heat storage system comprises 1-an elliptical light gathering reflector, 2-a molten salt heat storage tank, 3-a dish light gathering reflector, 4-parallel rays, 5-a mounting rack, 6-a semi-annular track, 7-a walking rack, 8-a tower, 501-a horizontal reinforcing rod piece, 502-a vertical reinforcing rod piece, 503-a supporting rod piece, 504-a semi-annular plate, 505-a driving wheel, 601-a main supporting shaft, 602-a first gear, 603-an auxiliary supporting shaft, 604-a limiting block, 605-an anti-collision block, 606-a buffering piece, 701-a driving motor, 702-a second gear, 703-a walking wheel and 704-a limiting track.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by a person of ordinary skill in the art without creative efforts belong to the protection scope of the present invention.
Referring to fig. 1-2, the present invention relates to a secondary reflection fixed-focus type disc-type light-gathering heat-storage system, which comprises a light-gathering heat-storage subsystem including an array; each light-gathering heat-storage subsystem comprises an elliptical light-gathering reflector 1, a molten salt heat storage tank 2, a disc light-gathering reflector 3 and parallel rays 4 emitted by the sun; the molten salt heat storage tanks 2 of the array are communicated through a conveying pipeline and are converged into a large molten salt heat storage tank; the reflecting mirror surface of the elliptical light gathering reflector 1 faces downwards and is arranged at the center of a field; the two focuses of the elliptical light gathering reflector 1 are a first focus F1 and a second focus F2 from top to bottom; the molten salt heat storage tank 2 is arranged right below the elliptical light gathering reflector 1 and is positioned on a second focus F2 of the elliptical light gathering reflector 1;
the focal point of the dish-type light-gathering reflector 3 is a third focal point F3, and the third focal point F3 is superposed with the first focal point F1; the parallel light rays 4 are incident into the reflecting surface of the disc-type light-gathering reflector 3 and then focused to the third focus F3, namely the first focus F1 of the elliptical light-gathering reflector 1, and the elliptical light-gathering reflector 1 reflects all the primary reflected light rays passing through the first focus F1 to the molten salt heat storage tank 2 on the second focus F2, so that the molten salt in the molten salt heat storage tank 2 is heated, and the ground fixed focus type light-gathering and heat storage effect is achieved.
Preferably, as shown in fig. 1, the reflecting mirror surface of the elliptical light gathering reflector 1 is one of elliptical shape and ellipsoidal shape, so that the primary reflected light passing through the first focal point F1 can be reflected by the second focal point F2, thereby heating the molten salt in the molten salt heat storage tank 2.
Preferably, as shown in fig. 1, the dish-type light-gathering reflector 3 is a parabolic light-gathering reflector, and the reflecting surface of the dish-type light-gathering reflector is a parabolic reflecting surface, which is used for gathering all the parallel light rays 4 and reflecting the light rays to the first focal point F1 of the elliptical light-gathering reflector 1.
Preferably, as shown in fig. 1, the dish-type concentrating reflector 3 is replaced with a flat mirror or a concave mirror.
Preferably, as shown in fig. 1, the number of annularly arranged layers of the disc-type light-gathering reflectors 3 is at least 1, and the light-gathering capacity and the light-gathering amount in unit time can be greatly improved by the multilayer disc-type light-gathering reflectors 3, so that the temperature in the molten salt heat storage tank 2 is rapidly increased to enter a power generation working state, and the power generation efficiency is improved.
Preferably, as shown in fig. 1, the molten salt heat storage tank 2 is coated with a corrosion-resistant material along the inner surface thereof, so as to prevent the molten salt in the molten salt heat storage tank 2 from corroding the molten salt heat storage tank 2, thereby causing danger; the fused salt heat storage tank 2 is provided with a heat insulation layer along the outer surface thereof, and is used for preventing heat in the fused salt heat storage tank 2 from being transferred outwards and improving the solar power generation efficiency; be provided with the electric core module that is used for realizing the even conduction of heat in fused salt heat storage jar 2 to heat transfer is more even when making 2 interior intensification of fused salt heat storage jar, avoids local temperature too high or low excessively as far as possible.
Preferably, as shown in fig. 2, the elliptical light gathering reflector 1 is fixed under a mounting frame 5; the mounting frame 5 can be vertically and rotatably limited in the semi-annular track 6; the semi-annular track 6 is horizontally and rotatably arranged below the walking frame 7; the walking frame 7 can be arranged between a plurality of towers 8 in a way of moving up and down.
Preferably, as shown in fig. 2, the elliptical light gathering reflector 1 is installed with the mounting frame 5 through a horizontal reinforcement bar 501 and a vertical reinforcement bar 502; a semi-annular plate 504 is fixed on the top of the mounting frame 5 through a support rod 503, driving wheels 505 are uniformly distributed along the outer side of the semi-annular plate 504, the elliptical light gathering reflector 1 is driven to slowly adjust the orientation through the work of the driving wheels 505, the optimal light gathering reflection state is achieved, and the adjustment is convenient according to the construction form of the molten salt heat storage tank 2.
Preferably, as shown in fig. 2, a main supporting shaft 601 is fixed at the top center position of the semi-circular track 6, and a first gear 602 is fixed on the main supporting shaft 601; a plurality of auxiliary support shafts 603 are annularly arranged at the top of the semi-annular track 6 around the main support shaft 601, are used for supporting the weight of the semi-annular track 6 in an auxiliary manner, and are matched with the semi-annular track to rotate and adjust to the most appropriate position; a limiting block 604 is fixed at the top of the auxiliary supporting shaft 603; the ends of the tracks at the inner sides of the semi-annular tracks 6 are all fixed with anti-collision blocks 605; the bumper block 605 is provided with a buffer 606 for buffering and preventing collision when the mounting frame 5 is adjusted.
Preferably, as shown in fig. 2, a driving motor 701 is installed on the top of the walking frame 7; a second gear 702 meshed with the first gear 602 is fixed on an output shaft of the driving motor 701; a limit track 704 matched with the limit block 604 is fixed at the bottom of the walking frame 7, and the semi-annular track 6 is driven to rotate by the operation of the driving motor 701, so that the elliptical light gathering reflector 1 is driven to adjust the position of the elliptical light gathering reflector to reach a set state; the periphery of the walking frame 7 is provided with a plurality of groups of walking wheels 703 and is connected with a driving control device, the elliptical light gathering reflector 1, the mounting frame 5, the semi-annular track 6, the walking frame 7 and the tower 8 are controlled to ascend and descend together through the driving control device, when the devices break down, the devices can conveniently descend for maintenance, then ascend to a set position, and meanwhile, the position of the second focus F2 can be adjusted according to the height of the molten salt heat storage tank 2.
In the description herein, references to the description of "one embodiment," "an example," "a specific example," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
The preferred embodiments of the present invention disclosed above are intended only to help illustrate the present invention. The preferred embodiments are not intended to be exhaustive or to limit the invention to the precise embodiments disclosed. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the invention and its practical application, to thereby enable others skilled in the art to best understand and utilize the invention. The present invention is limited only by the claims and their full scope and equivalents.
Claims (9)
1. The utility model provides a dish formula spotlight heat-retaining system of fixed focus of secondary reflection which characterized in that: a light concentrating heat storage subsystem comprising an array; each light-gathering heat storage subsystem comprises an elliptical light-gathering reflector (1), a molten salt heat storage tank (2), a disc light-gathering reflector (3) and parallel rays (4) emitted by the sun; the molten salt heat storage tanks (2) of the array are communicated through a conveying pipeline and converged into a large molten salt heat storage tank;
the reflecting mirror surface of the elliptical light gathering reflector (1) faces downwards and is arranged at the center of a field; the two focuses of the elliptic light gathering reflector (1) are respectively a first focus F1 and a second focus F2 from top to bottom;
the molten salt heat storage tank (2) is arranged right below the elliptical light gathering reflector (1) and is positioned on a second focus F2 of the elliptical light gathering reflector (1);
the focal point of the dish-type light-gathering reflector (3) is a third focal point F3, and the third focal point F3 is superposed with the first focal point F1;
the parallel light rays (4) are incident into the reflecting surface of the disc-type light-gathering reflector (3) and then are focused to a third focus F3, namely the first focus F1 of the elliptical light-gathering reflector (1), and the elliptical light-gathering reflector (1) reflects all primary reflected light rays passing through the first focus F1 to the molten salt heat storage tank (2) located on the second focus F2, so that molten salt in the molten salt heat storage tank (2) is heated.
2. The secondary reflection fixed-focus disc-type concentrating and heat storing system according to claim 1, wherein the reflecting mirror surface of the elliptical concentrating reflector (1) is one of elliptical or ellipsoidal.
3. The secondary reflection fixed-focus dish concentrating and heat storing system according to claim 1 or 2, wherein the dish concentrating reflector (3) is a parabolic concentrating reflector, and the reflecting surface is a parabolic reflecting surface.
4. The secondary reflection fixed-focus dish concentrating and heat storing system according to claim 1, wherein the dish concentrating reflector (3) is replaced by a plane reflector or a concave reflector.
5. The secondary reflection fixed-focus disc-type light-gathering heat storage system as claimed in claim 3, wherein the molten salt heat storage tank (2) is coated with corrosion-resistant material along its inner surface; the molten salt heat storage tank (2) is provided with a heat insulation layer along the outer surface;
and a battery cell module used for realizing uniform heat conduction is arranged in the molten salt heat storage tank (2).
6. The secondary reflection fixed-focus dish concentrating and storing system according to claim 1, wherein the elliptical concentrating mirror (1) is fixed under a mounting frame (5); the mounting rack (5) can be vertically and rotatably limited in the semi-annular track (6);
the semi-annular track (6) is horizontally and rotatably arranged below the walking frame (7); the walking frame (7) can be arranged among the plurality of towers (8) in a vertically moving mode.
7. The secondary reflection fixed-focus disc type light-gathering and heat-storage system as claimed in claim 6, wherein the elliptical light-gathering reflector (1) is installed with the installation frame (5) through a horizontal reinforcing rod (501) and a vertical reinforcing rod (502);
a semicircular plate (504) is fixed at the top of the mounting frame (5) through a support rod piece (503), and driving wheels (505) are uniformly distributed along the outer side of the semicircular plate (504).
8. The secondary reflection fixed-focus disc-type concentrating and heat storing system according to claim 6, wherein a main supporting shaft (601) is fixed at the top center position of the semi-circular track (6), and a first gear (602) is fixed on the main supporting shaft (601);
a plurality of auxiliary support shafts (603) are annularly arranged at the top of the semi-annular track (6) around the main support shaft (601); a limiting block (604) is fixed at the top of the auxiliary supporting shaft (603);
the ends of the tracks at the inner sides of the semi-annular tracks (6) are all fixed with anti-collision blocks (605); and a buffer (606) is arranged on the anti-collision block (605).
9. The secondary reflection fixed-focus type dish concentrating and heat storing system according to claim 8, wherein a driving motor (701) is installed on the top of the walking frame (7); a second gear (702) meshed with the first gear (602) is fixed on the output shaft of the driving motor (701);
a limiting track (704) matched with a limiting block (604) is fixed at the bottom of the walking frame (7);
a plurality of groups of travelling wheels (703) are arranged on the periphery of the travelling frame (7) and are connected with a driving control device.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202120162020.4U CN214307656U (en) | 2021-01-21 | 2021-01-21 | Secondary reflection fixed-focus disc type light-gathering heat storage system |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202120162020.4U CN214307656U (en) | 2021-01-21 | 2021-01-21 | Secondary reflection fixed-focus disc type light-gathering heat storage system |
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| CN214307656U true CN214307656U (en) | 2021-09-28 |
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