CN219659609U - Photovoltaic/photo-thermal energy storage integrated device - Google Patents
Photovoltaic/photo-thermal energy storage integrated device Download PDFInfo
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- CN219659609U CN219659609U CN202223404489.8U CN202223404489U CN219659609U CN 219659609 U CN219659609 U CN 219659609U CN 202223404489 U CN202223404489 U CN 202223404489U CN 219659609 U CN219659609 U CN 219659609U
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- photovoltaic
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- hydrogen storage
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- 238000004146 energy storage Methods 0.000 title claims abstract description 12
- 239000001257 hydrogen Substances 0.000 claims abstract description 89
- 229910052739 hydrogen Inorganic materials 0.000 claims abstract description 89
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 claims abstract description 77
- 238000003860 storage Methods 0.000 claims abstract description 56
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 17
- 238000004519 manufacturing process Methods 0.000 claims abstract description 16
- 229910052987 metal hydride Inorganic materials 0.000 claims abstract description 11
- 150000004681 metal hydrides Chemical class 0.000 claims abstract description 11
- 238000006243 chemical reaction Methods 0.000 claims description 24
- 229910052751 metal Inorganic materials 0.000 claims description 17
- 239000002184 metal Substances 0.000 claims description 17
- 238000010521 absorption reaction Methods 0.000 claims description 12
- 150000002431 hydrogen Chemical class 0.000 claims description 12
- 238000010248 power generation Methods 0.000 claims description 9
- 239000011521 glass Substances 0.000 claims description 7
- 239000002245 particle Substances 0.000 claims description 7
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 6
- 239000001301 oxygen Substances 0.000 claims description 6
- 229910052760 oxygen Inorganic materials 0.000 claims description 6
- 229910045601 alloy Inorganic materials 0.000 claims description 5
- 239000000956 alloy Substances 0.000 claims description 5
- 238000007789 sealing Methods 0.000 claims description 4
- 239000003792 electrolyte Substances 0.000 claims description 2
- 239000007789 gas Substances 0.000 claims description 2
- 238000002347 injection Methods 0.000 claims description 2
- 239000007924 injection Substances 0.000 claims description 2
- 238000001914 filtration Methods 0.000 claims 1
- 239000011148 porous material Substances 0.000 claims 1
- 238000005868 electrolysis reaction Methods 0.000 description 6
- 238000005516 engineering process Methods 0.000 description 4
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 3
- 239000002923 metal particle Substances 0.000 description 3
- 230000005855 radiation Effects 0.000 description 3
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 description 2
- 230000008878 coupling Effects 0.000 description 2
- 238000010168 coupling process Methods 0.000 description 2
- 238000005859 coupling reaction Methods 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 238000005265 energy consumption Methods 0.000 description 2
- 230000010354 integration Effects 0.000 description 2
- 229910052749 magnesium Inorganic materials 0.000 description 2
- 239000011777 magnesium Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 description 1
- YZCKVEUIGOORGS-OUBTZVSYSA-N Deuterium Chemical compound [2H] YZCKVEUIGOORGS-OUBTZVSYSA-N 0.000 description 1
- 229910001200 Ferrotitanium Inorganic materials 0.000 description 1
- 241000282414 Homo sapiens Species 0.000 description 1
- 229910002335 LaNi5 Inorganic materials 0.000 description 1
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 1
- 229910019758 Mg2Ni Inorganic materials 0.000 description 1
- 229910018561 MmNi5 Inorganic materials 0.000 description 1
- 229910010340 TiFe Inorganic materials 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- -1 and finally Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 229910052791 calcium Inorganic materials 0.000 description 1
- 239000011575 calcium Substances 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 239000000356 contaminant Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 229910021389 graphene Inorganic materials 0.000 description 1
- 229910002804 graphite Inorganic materials 0.000 description 1
- 239000010439 graphite Substances 0.000 description 1
- 238000005286 illumination Methods 0.000 description 1
- 238000011835 investigation Methods 0.000 description 1
- DOARWPHSJVUWFT-UHFFFAOYSA-N lanthanum nickel Chemical group [Ni].[La] DOARWPHSJVUWFT-UHFFFAOYSA-N 0.000 description 1
- 229910052744 lithium Inorganic materials 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- 230000002441 reversible effect Effects 0.000 description 1
- 239000011232 storage material Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
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- Electrolytic Production Of Non-Metals, Compounds, Apparatuses Therefor (AREA)
- Photovoltaic Devices (AREA)
Abstract
The utility model relates to a photovoltaic/photo-thermal energy-storage integrated device which mainly comprises a photovoltaic/photo-thermal heat collector, a metal hydride hydrogen storage reactor and an electrolytic water hydrogen production electrolytic tank.
Description
Technical Field
The utility model relates to the technical field of renewable energy utilization and hydrogen storage, in particular to a photovoltaic/photo-thermal energy production and storage integrated device.
Background
With the development of society and productivity, the demand of human beings for energy is becoming stronger, so that a great deal of new energy needs to be developed, and the structural reform of energy is implemented, so as to adjust the energy consumption ratio. In order to promote the 'double carbon' goal of China, the development of the China energy industry is carried out in the direction of 'wind-light storage bundling', the solar energy sources are clean, the power generation process is pollution-free, but the power generation process is influenced by natural factors such as geographic positions, weather conditions and the like, the energy output has volatility and intermittence, the requirements of users on energy consumption sustainability, stability, flexibility and the like cannot be met, and the problems can be effectively solved by designing and configuring corresponding energy storage systems.
Hydrogen, which is a truly clean energy source, has a high energy density, and only water, but not any contaminants, in the combustion products is of great interest to many students worldwide. Key technologies for hydrogen energy generally include the production of hydrogen, the storage and transportation of hydrogen, and the utilization of hydrogen. The hydrogen is prepared by coupling the photovoltaic cells and utilizing the hydrogen production technology of the electrolytic water, hydrogen is stored by utilizing hydrogen storage materials such as metal hydrides, and finally, hydrogen utilization is realized by utilizing hydrogen utilization devices such as fuel cells, so that the full storage and flexible utilization of the energy of the surplus part or the abandoned part after grid connection in solar power generation are finished, the energy yield is improved, the use proportion of non-renewable energy sources is reduced, the environmental pollution is reduced, and the energy pressure is effectively relieved.
At present, a great part of electric energy produced by a solar energy utilization device cannot be utilized in a grid-connected mode due to supply and demand matching, poor electric energy quality and the like, so that the energy is wasted, the productivity is low, the integration of energy production and storage is realized through solar photovoltaic power generation, photo-thermal storage and preparation, storage and utilization of coupling hydrogen, the conversion rate and the utilization rate of energy are improved, the problems of difficult energy storage, supply fluctuation, intermittent output and the like in the current solar energy utilization technology are solved, and meanwhile, the full utilization of waste light energy is realized.
Disclosure of Invention
The utility model aims to solve the problems that the prior renewable energy source is used for generating electricity, the energy cannot be fully utilized, the light discarding is serious and the like due to the fact that the supply and demand of electric energy are not matched, the quality of partial electric energy is poor, the generation fluctuation and the like.
The technical scheme adopted by the utility model is as follows: the integrated device comprises a photovoltaic/photo-thermal heat collector, a metal hydride hydrogen storage reactor and an electrolytic water hydrogen production electrolytic tank, wherein the photovoltaic/photo-thermal heat collector comprises a glass cover plate 1, a photovoltaic cell plate 2, a heat exchange medium tank 3, a finned heat absorption plate 4, wherein the glass cover plate 1 covers the photovoltaic cell plate 2, the heat absorption plate 4 with bag fins is arranged below the photovoltaic cell plate 2, the fins on the finned heat absorption plate 4 are arranged in the heat exchange medium tank 3, one end of the heat exchange medium tank 3 is provided with a circulating heat exchange inlet valve 5, the other end of the heat exchange medium tank 3 is sequentially provided with a circulating heat exchange outlet valve 6 and a circulating heat exchange pump 7, a heat exchange pump mounting valve 8 and a heat exchange pipeline 9, and the heat exchange pipeline 9 is communicated with the circulating heat exchange inlet valve 5; the metal hydride hydrogen storage reactor comprises a hydrogen storage metal filter plate 10, a hydrogen storage reactor hydrogen discharge pipeline valve 11, a reaction bed layer 12 and a porous hydrogen discharge pipeline 13, wherein the heat exchange pipeline 9 is in contact with the reaction bed layer 12; the electrolytic water hydrogen production electrolytic tank comprises an absorption plate 14, an oxygen passage plate 15 and an oxygen discharge valve 16, wherein a plurality of diaphragms 20 are arranged in the electrolytic tank, the electrolytic tank is divided into a negative electrode chamber and a positive electrode chamber by the diaphragms, a negative electrode 18 is arranged in the negative electrode chamber, a positive electrode 19 is arranged in the positive electrode chamber, the positive electrode tank is communicated with the oxygen passage plate 15, the negative electrode chamber is communicated with a porous hydrogen discharge pipeline 13, the absorption plate 14 filters gas in the porous hydrogen discharge pipeline, the negative electrode 18 and the positive electrode 19 are communicated with a power supply line 22, a water injection valve 17 is arranged on one side of the electrolytic water hydrogen production electrolytic tank, and an electrolyte 21 is arranged in the electrolytic water hydrogen production electrolytic tank;
preferably, the glass cover plate 1 is in sealing connection with the photovoltaic cell panel 2, and the sealing space is a vacuum space;
preferably, heat conducting particles are arranged in the reaction bed layer 12;
preferably, the photovoltaic/photo-thermal heat collector is of a flat plate structure;
preferably, a plurality of porous hydrogen release pipelines 13 are arranged, and the porous hydrogen release pipelines 13 are arranged in the reaction bed layer 12;
preferably, a temperature sensor is arranged on the heat exchange pipeline 9;
preferably, the hydrogen storage pipeline valve 11 of the hydrogen storage reactor is provided with a hydrogen storage metal filter plate, and the aperture of the hydrogen storage metal filter plate is smaller than the particle size of metal hydride in the reaction bed layer;
preferably, the filling volume of the hydrogen storage metal or the hydrogen storage alloy in the hydrogen storage metal reactor is 1/2-3/4 of the volume of the metal hydride hydrogen storage reactor;
the reaction bed layer 12 is composed of hydrogen storage alloy or hydrogen storage metal, wherein the hydrogen storage alloy is lanthanum nickel series AB5 type LaNi5/MmNi5 and derivatives thereof, ferrotitanium series AB type TiFe and derivatives thereof or A2B magnesium base Mg2Ni and derivatives thereof; the hydrogen storage single metal is magnesium, aluminum, lithium or calcium;
the hydrogen storage alloy particles or the hydrogen storage metal particles are mixed with heat conducting particles, such as expanded graphite, accounting for about 1-5 wt% of the total mass of the reaction bed layer 12, so as to improve the heat conducting performance of the whole bed layer and increase the reaction rate;
compared with the prior art, the utility model has the beneficial effects that:
the utility model discloses a photovoltaic/photo-thermal energy-storage integrated device which mainly comprises a photovoltaic/photo-thermal heat collector, a metal hydride hydrogen storage reactor, an electrolytic tank for producing hydrogen by water electrolysis, and related pipelines and valve accessories. The device selects a mode of combining photovoltaic power generation, water electrolysis hydrogen production and hydrogen storage metal hydrogen storage, not only has the function of producing most high-quality electric energy meeting the requirements and being used for grid connection, but also fully utilizes the electric energy of the light discarding part, the capacity overflow part and the like in the photovoltaic power generation, realizes the conversion and storage of energy from electric energy to chemical energy, simultaneously generates heat energy collected by the photovoltaic cell panel and light heat, takes away the heat energy through a heat exchange medium after being absorbed by a heat absorption plate, realizes the storage of the heat energy, selectively is used for improving the overall temperature of a reaction bed layer, improves the hydrogen storage and hydrogen release performance of the hydrogen storage metal, and utilizes the reversible absorption and release of the hydrogen storage metal to realize the storage of the hydrogen, thereby improving the capacity of the device and the utilization rate of radiant energy. The device utilizes all radiation energy received in effective illumination time to a great extent, most of electric energy is connected with the grid, and the rest of electric energy is subjected to water electrolysis through the electrolytic tank to prepare hydrogen and hydrogen storage and hydrogen release through the hydrogen storage metal reactor, so that the integration of energy generation and storage is realized, and meanwhile, the situation of serious light rejection problem at present is also improved.
In the integrated reactor device for producing hydrogen by photovoltaic/photo-thermal technology, the vacuum pumping is carried out between the glass cover plate and the photovoltaic cell panel, so that the heat loss of the system is reduced, and the heat absorbed by the heat collector is used for improving the overall temperature of the reaction bed layer so as to realize high-efficiency hydrogen storage, so that the radiant energy is fully absorbed and utilized.
In the integrated reactor device for generating hydrogen by photovoltaic/photo-thermal production, hydrogen generated by electrolysis of the cathode of the electrolytic tank is released into the reaction bed layer through the porous hydrogen release pipeline, so that hydrogen storage metal particles in the bed layer are fully contacted with the hydrogen and react, and meanwhile, the reaction bed layer in the hydrogen storage metal reactor consists of the hydrogen storage metal particles and the heat conducting material particles, so that the overall heat conducting property of the bed layer is improved, and the reaction rate and the reaction capacity of the bed layer are improved.
Drawings
FIG. 1 is a schematic diagram of a photovoltaic/photothermal energy storage integrated device;
description of the embodiments
The present utility model is described in further detail below by way of examples to enable those skilled in the art to practice the same by reference to the specification.
It will be understood that terms, such as "having," "including," and "comprising," as used herein, do not preclude the presence or addition of one or more other elements or groups thereof.
The utility model is further described below with reference to fig. 1:
examples
Taking the inner Mongolian area as an example, the annual power generation maximum value is 1745 h, the daily average power generation time is 4.78 h, and taking a 540W photovoltaic panel as an example, the occupied area is about 2.6 m 2 The photoelectric power is about 207W/m 2 Of the radiation energy absorbed by the device, 5-20% of the radiation energy is converted into electric energy, and the photo-thermal power is about 2 kW/m when the photoelectric conversion efficiency is 10% 2 In a standard state, the minimum energy required by electrolysis of water is 237.19 kJ/mol, the energy efficiency of the alkaline electrolytic tank is about 60 percent, and the hydrogen production rate is 3.14 mol/(h ∙ m) 2 ) About 15 mol/m of daily-average electrolysis hydrogen 2 The heat exchange medium takes the graphene nano sheet-water as an example, can absorb the heat of the photovoltaic panel to reduce the overall temperature by about 15 ℃ and about 50% of the total temperature rise of the photovoltaic panel, and assists in improving the overall temperature of the reaction bed layer and promoting the hydrogen storage reaction.
Although embodiments of the present utility model have been disclosed in the foregoing description and illustrated in the accompanying drawings, it is not to be limited to the specific details and examples shown and described herein, since it is well suited to the analytical processing of test data in various fields of investigation, and further modifications may readily be made by those skilled in the art, without departing from the general concept defined by the appended claims and their equivalents.
Claims (8)
1. The integrated device for producing and storing energy through photovoltaic/photo-thermal production is characterized by comprising a photovoltaic/photo-thermal heat collector and a metal hydride hydrogen storage reactor, wherein the photovoltaic/photo-thermal heat collector comprises a glass cover plate (1), a photovoltaic cell plate (2), a heat exchange medium tank (3) and a finned heat absorption plate (4), the glass cover plate (1) covers the photovoltaic cell plate (2), the finned heat absorption plate (4) is arranged below the photovoltaic cell plate (2), fins on the finned heat absorption plate (4) are arranged in the heat exchange medium tank (3), a circulating heat exchange inlet valve (5) is arranged on one side of the heat exchange medium tank (3), a circulating heat exchange outlet valve (6) and a circulating heat exchange pump (7) are sequentially arranged on the other side of the heat exchange medium tank (3), a heat exchange pump mounting valve (8) and a heat exchange pipeline (9) are communicated with the circulating heat exchange inlet valve (5); the metal hydride hydrogen storage reactor comprises a hydrogen storage metal filter plate (10), a hydrogen storage reactor hydrogen discharge pipeline valve (11), a reaction bed layer (12) and a porous hydrogen discharge pipeline (13), and the heat exchange pipeline (9) is in contact with the reaction bed layer (12); the electrolytic water hydrogen production electrolytic tank comprises an absorption plate (14), an oxygen passage plate (15) and an oxygen release valve (16) which are communicated, a plurality of diaphragms (20) are arranged in the electrolytic tank, the diaphragms divide the electrolytic tank into a negative electrode chamber and a positive electrode chamber, a negative electrode (18) is arranged in the negative electrode chamber, a positive electrode (19) is arranged in the positive electrode chamber, the positive electrode chamber is communicated with the oxygen passage plate (15), the negative electrode chamber is communicated with a porous hydrogen release pipeline (13), the absorption plate (14) is used for filtering gas in the porous hydrogen release pipeline, the negative electrode (18) and the positive electrode (19) are communicated with a power supply circuit (22), a water injection valve (17) is arranged on one side of the electrolytic water hydrogen production electrolytic tank, and an electrolyte (21) is arranged in the electrolytic water hydrogen production electrolytic tank.
2. The integrated photovoltaic/photothermal energy storage device according to claim 1, wherein the glass cover plate (1) is in sealing connection with the photovoltaic cell plate (2), and the sealing space is a vacuum space.
3. The integrated photovoltaic/photothermal energy storage apparatus of claim 1, wherein thermally conductive particles are disposed in said reaction bed (12).
4. The integrated photovoltaic/photothermal energy storage device of claim 1, wherein the photovoltaic/photothermal collector is of a flat plate type structure.
5. The integrated photovoltaic/photothermal energy storage device according to claim 1, wherein a plurality of porous hydrogen release pipelines (13) are provided, and the porous hydrogen release pipelines (13) are arranged in the reaction bed layer (12).
6. The integrated photovoltaic/photothermal energy storage device as claimed in claim 1, wherein a temperature sensor is arranged on the heat exchange pipeline (9).
7. The integrated photovoltaic/photothermal energy-generating device according to claim 1, wherein a hydrogen storage metal filter plate is arranged on a hydrogen discharge pipeline valve (11) of the hydrogen storage reactor, and the pore diameter of the hydrogen storage metal filter plate is smaller than the particle diameter of metal hydride in the reaction bed layer.
8. The integrated photovoltaic/photothermal power generation and storage device according to claim 1, wherein a loading volume of hydrogen storage metal or hydrogen storage alloy in the hydrogen storage metal reactor is 1/2-3/4 of a volume of the metal hydride hydrogen storage reactor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223404489.8U CN219659609U (en) | 2022-12-19 | 2022-12-19 | Photovoltaic/photo-thermal energy storage integrated device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223404489.8U CN219659609U (en) | 2022-12-19 | 2022-12-19 | Photovoltaic/photo-thermal energy storage integrated device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219659609U true CN219659609U (en) | 2023-09-08 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202223404489.8U Active CN219659609U (en) | 2022-12-19 | 2022-12-19 | Photovoltaic/photo-thermal energy storage integrated device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219659609U (en) |
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2022
- 2022-12-19 CN CN202223404489.8U patent/CN219659609U/en active Active
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