CN211689247U - Photovoltaic hydrogen production system based on parallel connection mode - Google Patents
Photovoltaic hydrogen production system based on parallel connection mode Download PDFInfo
- Publication number
- CN211689247U CN211689247U CN201922155375.6U CN201922155375U CN211689247U CN 211689247 U CN211689247 U CN 211689247U CN 201922155375 U CN201922155375 U CN 201922155375U CN 211689247 U CN211689247 U CN 211689247U
- Authority
- CN
- China
- Prior art keywords
- photovoltaic
- electrolytic cell
- cathode
- hydrogen production
- positive
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 title claims abstract description 25
- 239000001257 hydrogen Substances 0.000 title claims abstract description 25
- 229910052739 hydrogen Inorganic materials 0.000 title claims abstract description 25
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 19
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 20
- 238000010248 power generation Methods 0.000 claims abstract description 4
- 239000003792 electrolyte Substances 0.000 claims description 13
- 239000007788 liquid Substances 0.000 claims description 10
- 238000005868 electrolysis reaction Methods 0.000 abstract description 8
- 238000012423 maintenance Methods 0.000 abstract description 7
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 239000001301 oxygen Substances 0.000 description 3
- 229910052760 oxygen Inorganic materials 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000005192 partition Methods 0.000 description 2
- 238000002485 combustion reaction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 238000011031 large-scale manufacturing process Methods 0.000 description 1
Images
Classifications
-
- 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
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/30—Hydrogen technology
- Y02E60/36—Hydrogen production from non-carbon containing sources, e.g. by water electrolysis
Landscapes
- Electrolytic Production Of Non-Metals, Compounds, Apparatuses Therefor (AREA)
Abstract
The utility model relates to a photovoltaic hydrogen production system based on a parallel connection mode, which comprises a photovoltaic system for photovoltaic power generation, an electrolytic bath for water electrolysis, and a negative polarity bus and a positive polarity bus for connecting the photovoltaic system and the electrolytic bath; the photovoltaic system comprises photovoltaic panels, diodes arranged at the outlets of the anodes of the photovoltaic panels and switches arranged at the outlets at the two sides of the photovoltaic panels, and the photovoltaic panels are connected in parallel to form the photovoltaic system; the electrolytic cell adopts a single-pole electrolytic cell, a negative-pole bus and a positive-pole bus are respectively connected with the cathode and the anode in the electrolytic cell from the upper part of the electrolytic cell through a sleeve, the cathode and the anode in the electrolytic cell are alternately arranged, and an electrolytic cell diaphragm and an electrolytic cell clapboard are arranged between the adjacent anode and the cathode. The utility model discloses a parallelly connected mode has realized the concentrated arrangement of photovoltaic board and electrolysis trough respectively to optimized system architecture, improved the reliability of system, also made things convenient for the operation maintenance at ordinary times simultaneously.
Description
Technical Field
The utility model belongs to the technical field of photovoltaic hydrogen production, especially, relate to a photovoltaic hydrogen production system based on parallel mode.
Background
The support and power for the development of the human economic society are from a large amount of energy consumption, the energy structure is mainly based on fossil energy at present, and the use of the fossil energy brings a series of problems, such as environmental pollution and greenhouse effect. Therefore, the search for clean and renewable energy sources has important significance for the development of human society. Solar energy has great application prospect as an inexhaustible energy source, but is easily affected by night and weather, and cannot provide stable energy supply. If solar energy is utilized to generate electric energy, and then water molecules are decomposed into oxygen and hydrogen under the action of direct current (namely, hydrogen is produced by water electrolysis), the solar energy can be converted into hydrogen which has high heat value, large energy density and easy storage, and meanwhile, the combustion product of the hydrogen has no pollution to the environment and can be recycled, so that the photovoltaic hydrogen production has wider prospect.
A photovoltaic hydrogen production system generally consists of two parts, namely a photovoltaic system for converting solar energy into electric energy and an electrolytic cell for electrolyzing water by using the electric energy. At present, a plurality of methods for producing hydrogen by photovoltaic are available, but most methods adopt a mode that a single photovoltaic plate drives a single electrolytic cell, and although the structure of the mode is simpler, when the photovoltaic plate or the electrolytic cell breaks down, the whole system cannot work normally. Meanwhile, the photovoltaic panel needs a certain floor area, so that in large-scale production, all systems of the mode are distributed dispersedly, and normal operation and maintenance are not utilized.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a photovoltaic hydrogen production system based on parallel mode realizes the concentrated arrangement of photovoltaic board and electrolysis trough respectively through the parallel mode of system to optimize system architecture improves the reliability of system, also makes things convenient for the operation maintenance at ordinary times simultaneously.
The utility model provides a photovoltaic hydrogen production system based on a parallel connection mode, which comprises a photovoltaic system for photovoltaic power generation, an electrolytic bath for water electrolysis, and a negative polarity bus and a positive polarity bus for connecting the photovoltaic system and the electrolytic bath;
the photovoltaic system comprises photovoltaic panels, diodes arranged at the outlets of the anodes of the photovoltaic panels and switches arranged at the outlets on the two sides of the photovoltaic panels, and the photovoltaic panels are connected in parallel to form the photovoltaic system;
the electrolytic cell adopts a single-pole electrolytic cell, the negative-pole bus and the positive-pole bus are respectively connected with the cathode and the anode in the electrolytic cell from the upper part of the electrolytic cell through sleeves, the cathode and the anode in the electrolytic cell are alternately arranged, and an electrolytic cell diaphragm and an electrolytic cell clapboard are arranged between the adjacent anode and the cathode.
Furthermore, a switch is arranged between the positive and negative electrodes of each electrolytic cell and the positive and negative buses.
Furthermore, the bottom of the electrolytic cell is provided with a water outlet and an electrolyte water replenishing port, and the side surface of the electrolytic cell is provided with a liquid level observation window.
By means of the scheme, the photovoltaic hydrogen production system based on the parallel connection mode realizes the centralized arrangement of the photovoltaic panels and the electrolytic cell respectively through the parallel connection mode, so that the system structure is optimized, the reliability of the system is improved, and the operation and maintenance at ordinary times are facilitated.
The above description is only an overview of the technical solution of the present invention, and in order to make the technical means of the present invention clearer and can be implemented according to the content of the description, the following detailed description is made with reference to the preferred embodiments of the present invention and accompanying drawings.
Drawings
FIG. 1 is a schematic structural diagram of a photovoltaic hydrogen production system based on a parallel connection mode;
FIG. 2 is a circuit connection diagram of a photovoltaic hydrogen production system based on a parallel connection mode;
FIG. 3 is a plan view of the electrolytic cell of the photovoltaic hydrogen production system based on the parallel connection mode.
Reference numbers in the figures:
1-a photovoltaic panel; 2-a diode; 3, switching; 4-negative polarity bus; 5-positive polarity bus; 6-an electrolytic cell; 7-an electrolyzer separator; 8-a sleeve; 9-liquid level observation window; 10-an electrode; 11-an electrolyte; 12-cell diaphragm; 13-electrolyte water replenishing port; 14-water outlet.
Detailed Description
The following detailed description of the embodiments of the present invention is provided with reference to the accompanying drawings and examples. The following examples are intended to illustrate the invention, but are not intended to limit the scope of the invention.
Referring to fig. 1 to 3, the present embodiment provides a photovoltaic hydrogen production system based on a parallel connection manner, including a photovoltaic system for photovoltaic power generation, an electrolytic cell 6 for electrolyzing water, and a negative polarity bus bar 4 and a positive polarity bus bar 5 for connecting the photovoltaic system and the electrolytic cell 6;
the photovoltaic system comprises a photovoltaic panel 1, diodes 2 arranged at the positive electrode outlets of the photovoltaic panel 1 and switches 3 arranged at the outlets on two sides of the photovoltaic panel 1, and the photovoltaic panels 1 are connected in parallel to form the photovoltaic system;
the electrolytic cell 6 adopts a single-pole type electrolytic cell, the negative pole bus 4 and the positive pole bus 5 are respectively connected with the cathode and the anode in the electrolytic cell 6 from the upper part of the electrolytic cell 6 through the sleeve 8, the cathode and the anode in the electrolytic cell 6 are alternately arranged, and an electrolytic cell diaphragm 12 and an electrolytic cell clapboard 7 are arranged between the adjacent anode and the cathode.
In this embodiment, a switch is provided between the positive and negative electrodes and the positive and negative buses of each electrolytic cell 6.
In this embodiment, the bottom of the electrolytic cell 6 is provided with a water outlet 14 and an electrolyte replenishing port 13, and the side surface is provided with a liquid level observation window 9.
The present invention will be described in further detail below.
The photovoltaic systemComprises a certain number of photovoltaic panels 1, diodes 2 and switches 3, wherein the photovoltaic panels 1 are used for converting solar energy into electric energy required by electrolyzed water, and the thermodynamic voltage of the electrolyzed water is 1.23V (25 ℃, 1.01 × 10) under an ideal state5Pa) and considering the influence of practical conditions, the outlet voltage of each photovoltaic panel 1 during operation should be greater than 1.23V to meet the voltage value required for water electrolysis under the current environment, and a plurality of photovoltaic panels 1 are connected in parallel to increase the power of the whole photovoltaic system to meet the power consumption of the electrolytic cell 6. In order to prevent a current loop from forming between the photovoltaic panels 1, a diode 2 is provided at the outlet of the positive pole of each photovoltaic panel 1, taking into account that the photovoltaic panels 1 have a certain difference between their outlet voltages due to the limits of the manufacturing process. In addition, in order to facilitate operation and maintenance in the system operation process, the switches 3 are arranged at the outlets on the two sides of each photovoltaic panel 1, and when a certain photovoltaic panel 1 needs to be overhauled, the switches 3 on the two sides can be opened to achieve maintenance without stopping.
The electrolytic cell 6 is a single-pole electrolytic cell, the positive and negative polar buses are connected with the cathode and the anode in the electrolytic cell from the upper part of the electrolytic cell 6 through the sleeve 8, the cathodes and the anodes in the electrolytic cell 6 are arranged alternately, the diaphragm and the partition board are arranged between the adjacent anodes and cathodes, and the liquid level of the electrolyte is always kept higher than the diaphragm during operation so as to ensure that the generated oxygen and hydrogen are not mixed, and the generated oxygen and hydrogen are respectively sent out from the two sides of the electrolytic cell 6. In addition, as with the photovoltaic system, a switch is arranged between the electrode of each electrolytic cell 6 and the positive and negative buses, so that the maintenance of the electrolytic cells 6 without stopping the machine is realized. In addition, an electrolyte water replenishing port 13 and a liquid level observation window 9 are respectively arranged at the bottom and the side of the electrolytic cell 6 so as to keep the electrolyte liquid level in the electrolytic cell 6 in a normal range.
When the system works, the photovoltaic panels 1 are irradiated by sunlight to generate electric energy, and then the photovoltaic panels 1 are connected in parallel and connected with the electrolytic cell 6 through the positive and negative polar buses to provide electric energy for hydrogen production by electrolysis. The electrolytic cell 6 is composed of a plurality of small electrolytic cells arranged in an array, the current generated by the photovoltaic system flows to the electrodes 10 of each small electrolytic cell through the bus bar respectively, and then the electrolyte is applied by the current11 generating H on the electrodes 10, respectively2And O2The generated gas flows out from both sides of the electrolytic bath 6, respectively. For preventing generation of H by electrolysis during operation2And O2Mixing takes place with adjacent cells separated by the separator 7 and the diaphragm 12. Meanwhile, the liquid level height of the electrolyte 11 is observed through the liquid level observation window 9 during work, the electrolyte is replaced through the electrolyte water replenishing port 13 and the water outlet 14 during work, and the liquid level is always kept above the electrolyte partition plate 7, so that H generated by adjacent electrolytic cells is ensured2And O2No mixing occurs.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and it should be noted that, for those skilled in the art, a plurality of modifications and variations can be made without departing from the technical principle of the present invention, and these modifications and variations should also be regarded as the protection scope of the present invention.
Claims (3)
1. A photovoltaic hydrogen production system based on a parallel connection mode is characterized by comprising a photovoltaic system for photovoltaic power generation, an electrolytic cell for electrolyzing water, and a negative polarity bus and a positive polarity bus for connecting the photovoltaic system and the electrolytic cell;
the photovoltaic system comprises photovoltaic panels, diodes arranged at the outlets of the anodes of the photovoltaic panels and switches arranged at the outlets on the two sides of the photovoltaic panels, and the photovoltaic panels are connected in parallel to form the photovoltaic system;
the electrolytic cell adopts a single-pole electrolytic cell, the negative-pole bus and the positive-pole bus are respectively connected with the cathode and the anode in the electrolytic cell from the upper part of the electrolytic cell through sleeves, the cathode and the anode in the electrolytic cell are alternately arranged, and an electrolytic cell diaphragm and an electrolytic cell clapboard are arranged between the adjacent anode and the cathode.
2. The photovoltaic hydrogen production system based on the parallel connection mode according to claim 1, wherein a switch is arranged between the positive and negative electrodes and the positive and negative buses of each electrolytic cell.
3. The photovoltaic hydrogen production system based on the parallel connection mode as claimed in claim 1, wherein the bottom of the electrolytic cell is provided with a water outlet and an electrolyte water replenishing port, and the side surface is provided with a liquid level observation window.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922155375.6U CN211689247U (en) | 2019-12-05 | 2019-12-05 | Photovoltaic hydrogen production system based on parallel connection mode |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922155375.6U CN211689247U (en) | 2019-12-05 | 2019-12-05 | Photovoltaic hydrogen production system based on parallel connection mode |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211689247U true CN211689247U (en) | 2020-10-16 |
Family
ID=72789679
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922155375.6U Expired - Fee Related CN211689247U (en) | 2019-12-05 | 2019-12-05 | Photovoltaic hydrogen production system based on parallel connection mode |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211689247U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112952905A (en) * | 2021-03-12 | 2021-06-11 | 嘉寓氢能源科技(辽宁)有限公司 | System combining electrolytic hydrogen production and photovoltaic power station |
| CN114481180A (en) * | 2022-02-11 | 2022-05-13 | 中国华能集团清洁能源技术研究院有限公司 | Diaphragm-free micro-electrolysis bath-photovoltaic hydrogen production system and method |
| CN114836775A (en) * | 2022-03-16 | 2022-08-02 | 上海电力大学 | Integrated portable photovoltaic water electrolysis hydrogen production device and hydrogen production system |
-
2019
- 2019-12-05 CN CN201922155375.6U patent/CN211689247U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112952905A (en) * | 2021-03-12 | 2021-06-11 | 嘉寓氢能源科技(辽宁)有限公司 | System combining electrolytic hydrogen production and photovoltaic power station |
| CN114481180A (en) * | 2022-02-11 | 2022-05-13 | 中国华能集团清洁能源技术研究院有限公司 | Diaphragm-free micro-electrolysis bath-photovoltaic hydrogen production system and method |
| CN114481180B (en) * | 2022-02-11 | 2023-10-03 | 中国华能集团清洁能源技术研究院有限公司 | Diaphragm-free micro-electrolysis tank-photovoltaic hydrogen production system and method |
| CN114836775A (en) * | 2022-03-16 | 2022-08-02 | 上海电力大学 | Integrated portable photovoltaic water electrolysis hydrogen production device and hydrogen production system |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN211689247U (en) | Photovoltaic hydrogen production system based on parallel connection mode | |
| White et al. | Photons to formate: Efficient electrochemical solar energy conversion via reduction of carbon dioxide | |
| CN207010249U (en) | A kind of hydrogen fuel composite battery of wind power hydrogen production energy storage | |
| CN107017651A (en) | The hydrogen fuel composite battery and its electricity-generating method of a kind of wind power hydrogen production energy storage | |
| CN103603005B (en) | Continuous way weakly alkaline high-concentration hydrogen-rich water electrolysis device | |
| CN101514462A (en) | Ultra-pure water membrane electrolyser | |
| CN209766559U (en) | Distributed power generation experimental system of hydrogen fuel cell using solar energy | |
| CN110690855A (en) | Energy system of novel net zero energy consumption building based on hydrogen energy storage | |
| CN107419290B (en) | A kind of electrolytic brine prepares the system and method for pure hydrogen, oxygen | |
| CN110601231A (en) | Photovoltaic and fuel cell integrated power generation system based on photovoltaic hydrogen production and energy storage | |
| CN213521311U (en) | Comprehensive utilization system for hydrogen production energy by wind abandoning and water hydrolysis | |
| CN102376999A (en) | Solar energy storage system with coupled photo(electro)chemical cell and fuel cell | |
| GB2595822A (en) | Hydrogen based renewable energy storage system | |
| Liu et al. | Variable period sequence control strategy for an off-grid photovoltaic-PEM electrolyzer hydrogen generation system | |
| CN215481305U (en) | PEM (proton exchange membrane) water electrolysis hydrogen production waste heat utilization device | |
| CN113629731A (en) | Wind-solar combined stable water electrolysis hydrogen production system | |
| AU2008291700A1 (en) | Hydrogen production by the solar driven electrolysis of sulfurous acid | |
| CN215817549U (en) | Wind-solar combined stable water electrolysis hydrogen production system | |
| CN116231690A (en) | Hydrogen production system and method by utilizing waste wind and waste light | |
| CN115796487A (en) | Hydrogen production economy management method for hydrogen production system with multiple electrolytic cells | |
| Babu et al. | A comparative analysis of DC-DC converters for renewable energy system | |
| CN211063574U (en) | Energy system of novel net zero energy consumption building based on hydrogen energy storage | |
| CN115637455A (en) | Proton exchange membrane PEM (proton exchange membrane) water electrolysis hydrogen production system based on solar power generation and energy supply | |
| JP4660853B2 (en) | Hydrogen gas generating apparatus and hydrogen gas generating method | |
| CN210430942U (en) | Long-acting and continuous power supply system based on renewable energy power generation |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20201016 |