CN211872097U - Wide-power water electrolysis hydrogen production system - Google Patents
Wide-power water electrolysis hydrogen production system Download PDFInfo
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- CN211872097U CN211872097U CN202020484342.6U CN202020484342U CN211872097U CN 211872097 U CN211872097 U CN 211872097U CN 202020484342 U CN202020484342 U CN 202020484342U CN 211872097 U CN211872097 U CN 211872097U
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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
- 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
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Abstract
The utility model discloses a wide power brineelectrolysis hydrogen manufacturing system, including rectifier transformer, electrolysis trough, rectifier transformer lets in the electrolysis trough behind turning into the direct current with the alternating current, still includes vapour and liquid separator, gas cooler, gaseous drip catcher, rectifier transformer is connected with undulant power, vapour and liquid separator includes hydrogen separator and oxygen separator, gas cooler includes hydrogen cooler and oxygen cooler, gaseous drip catcher includes hydrogen drip catcher and oxygen drip catcher, the catholyte liquid outlet of electrolysis trough with vapour and liquid separator's hydrogen separator communicates each other, the anolyte liquid outlet of electrolysis trough communicates with vapour and liquid separator's oxygen separator each other. The utility model discloses can effectively solve present electrolysis water hydrogen manufacturing system power adjustable range limited, the not enough problem of response capacity such as system's pressure control during wide power fluctuation.
Description
Technical Field
The utility model relates to an electrolytic water hydrogen manufacturing technical field, concretely relates to wide power electrolytic water hydrogen manufacturing system.
Background
The hydrogen energy is a green and efficient secondary energy and has wide application prospect in the fields of traffic, electric power, fuel and the like. At present, hydrogen is mainly prepared from fossil fuels such as coal hydrogen preparation, natural gas reforming hydrogen preparation and the like, but the fossil fuel hydrogen preparation has the problems of serious pollution, limitation of resources and the like. With the large-scale development of renewable energy sources such as wind power, photovoltaic and the like, the hydrogen production by electrolyzing water by utilizing the renewable energy sources provides a green, low-carbon, low-cost and sustainable production mode for hydrogen energy.
However, due to the fluctuation of power supplies such as wind power, photovoltaic and the like, higher requirements are put forward on the power fluctuation resistant range and system control of the water electrolysis hydrogen production system. The existing water electrolysis hydrogen production system has limited power adjustable range, insufficient response capability of system pressure adjustment and the like during wide power fluctuation, and reduced gas purity under low power condition.
SUMMERY OF THE UTILITY MODEL
In order to solve the above problems, an object of the present invention is to provide a wide power hydrogen production system by water electrolysis for solving the stable hydrogen production by electrolysis under the power supply of a fluctuating power supply.
The utility model discloses a realize above-mentioned purpose, the technical scheme who adopts is:
a wide power hydrogen production system by water electrolysis comprises a rectifier transformer, an electrolytic bath, a gas-liquid separator, a gas cooler and a gas drip catcher;
the fluctuating power supply is connected with the electrolytic cell through a rectifier transformer and is used for supplying power to the electrolytic cell;
the gas-liquid separator includes hydrogen separator and oxygen separator, gas cooler includes hydrogen cooler and oxygen cooler, gas drip catcher includes hydrogen drip catcher and oxygen drip catcher, the catholyte liquid outlet of electrolysis trough with gas-liquid separator's hydrogen separator communicates each other, the anolyte liquid outlet of electrolysis trough communicates each other with gas separator's oxygen separator, hydrogen separator's gas outlet with hydrogen cooler's air inlet communicates each other, oxygen separator's gas outlet with oxygen cooler's air inlet communicates each other, hydrogen cooler's gas outlet with hydrogen drip catcher's air inlet communicates each other, oxygen cooler's gas outlet with oxygen drip catcher's air inlet communicates each other.
Further, the fluctuating power supply comprises wind power or photovoltaic.
Further, an electrolyte residual liquid outlet of the gas-liquid separator is communicated with an electrolyte conveying port of the electrolytic bath through an electrolyte heat exchanger and used for recycling electrolyte.
Furthermore, a water supplementing device is arranged on a pure water supplementing port of the gas-liquid separator.
Further, the circulating cooling system is further included, and the circulating cooling system is respectively in heat exchange with the gas cooler and the electrolyte heat exchanger.
Further, the circulation cooling system is a liquid circulation cooling system or a gas circulation cooling system.
Furthermore, an electrolytic cell controller is arranged on the electrolytic cell and is used for controlling the running current, the pressure, the temperature, the gas purity, the electrolyte flow and the liquid level of the electrolytic cell.
Further, the electrolytic cell is an alkaline water electrolytic cell or a solid polymer electrolytic cell.
Furthermore, the number of the electrolytic tanks is one or more, and a plurality of electrolytic tanks adopt a parallel mode.
The utility model has the advantages that:
(1) the utility model discloses a rectifier transformer adjusts fluctuation power supply for stable DC power supply after, to the electrolysis trough power supply for the electrolysis trough can utilize renewable energy effectively and carry out electrolysis water hydrogen manufacturing, when having reduced manufacturing cost, has improved work efficiency, can be incessant continuously carry out electrolysis water hydrogen manufacturing, and the utility model discloses vapour and liquid separator, gas cooler, gaseous drip catcher that contain can cool off, dry respectively to the hydrogen and the oxygen that the electrolysis water produced, finally obtain high-purity hydrogen and oxygen.
(2) In order to realize the recycling of the electrolyte and further reduce the production cost, an electrolyte residual liquid outlet of the gas-liquid separator is communicated with an infusion port of the electrolytic cell through an electrolyte heat exchanger, and the electrolyte heat exchanger can exchange heat with the electrolyte due to high temperature generated by electrolytic reaction, so that the electrolyte can be secondarily utilized.
(3) Because the water can be consumed in the electrolytic process, the water supplementing device is arranged on the pure water supplementing port of the gas-liquid separator, and the pure water is supplemented into the gas-liquid separator by the water supplementing device, so that the normal operation of the equipment is ensured.
(4) In order to make electrolyte heat exchanger and gas cooler can rapid cooling, avoid because the high temperature, influence the equipment operation, consequently, the utility model discloses connect circulative cooling system to carry out the heat exchange on gas cooler and electrolyte heat exchanger respectively.
(5) In order to improve the working efficiency, reduce the maintenance difficulty of the equipment and improve the operability of the equipment, the cooling medium of the circulating cooling system adopts liquid or gas.
(6) In order to control and master the running current, pressure, temperature, gas purity, electrolyte flow and liquid level condition of the electrolytic cell in real time, the electrolytic cell is provided with an electrolytic cell controller.
(7) In order to improve the working efficiency of the equipment, reduce the maintenance difficulty and the operation cost of the equipment and improve the operability of the equipment, the electrolytic bath is an alkaline water electrolytic bath or a solid polymer electrolytic bath.
(8) The utility model discloses a parallelly connected, the single electrolysis trough independent control's of many electrolysis troughs mode has widened the power operation interval of brineelectrolysis hydrogen manufacturing system, can utilize wave power such as renewable energy to carry out electrolysis hydrogen manufacturing to through the mode of many electrolysis troughs sharing vapour and liquid separator, gas cooler, gaseous drip catcher, the complexity and the cost of hydrogen manufacturing system have been reduced.
Drawings
The accompanying drawings, which form a part of the present application, are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention and not to limit the invention. In the drawings:
fig. 1 is a schematic diagram of the present invention.
The system comprises a rectifier transformer 1, an electrolytic tank 2, a gas-liquid separator 3, a gas cooler 4, a gas droplet catcher 5, an electrolyte heat exchanger 6, a circulating cooling system 7, a water replenishing device 8 and an electrolytic tank controller 9.
Detailed Description
The present invention will be described in detail below with reference to the accompanying drawings in conjunction with embodiments. It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict.
The following detailed description is exemplary in nature and is intended to provide further details of the invention. Unless otherwise defined, all technical terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments in accordance with the invention.
As shown in figure 1, a wide power hydrogen production system by water electrolysis comprises a rectifier transformer 1 and an electrolytic cell 2, wherein the rectifier transformer 1 converts alternating current into direct current and then leads the direct current into the electrolytic cell 2, the system also comprises a gas-liquid separator 3, a gas cooler 4 and a gas droplet catcher 5, the rectifier transformer 1 is connected with a fluctuating power supply, the fluctuating power supply comprises wind power or photovoltaic power, the gas-liquid separator 3 comprises a hydrogen separator and an oxygen separator, the gas cooler 4 comprises a hydrogen cooler and an oxygen cooler, the gas droplet catcher 5 comprises a hydrogen droplet catcher and an oxygen droplet catcher, a catholyte outlet of the electrolytic cell 2 is communicated with the hydrogen separator of the gas-liquid separator 3, an anolyte outlet of the electrolytic cell 2 is communicated with the oxygen separator of the gas-liquid separator 3, a hydrogen outlet of the hydrogen cooler is communicated with an air inlet of the hydrogen cooler, and an oxygen outlet of the oxygen separator is communicated with an air inlet of the oxygen cooler, the utility model discloses a circulation cooling system 7, circulation cooling system 7 carry out the heat exchange with gas cooler 4 and electrolyte heat exchanger 6 respectively, the coolant of circulation cooling system 7 adopts liquid or gas, be provided with electrolysis trough controller 9 on electrolysis trough 2 for controlling the operating current, pressure, temperature, gas purity, electrolyte flow of electrolysis trough 2, The electrolytic tank 2 is an alkaline water electrolytic tank or a solid polymer electrolytic tank, the number of the electrolytic tanks 2 is one or more, and a plurality of electrolytic tanks adopt a parallel mode.
The electrolytic bath 2 is one of an alkaline water electrolytic bath or a solid polymer electrolytic bath; the number of the electrolytic tanks 2 is one or more, a plurality of electrolytic tanks adopt a parallel mode, and each electrolytic tank can independently operate; when the electrolytic tank 2 adopts a parallel mode, the electrolytic tank shares a set of gas-liquid separator 3, a gas cooler 4, a gas drip catcher 5, an electrolyte heat exchanger 6, a circulating cooling system 7, a water supplementing device 8 and an electrolytic tank controller 9.
Example 1
The utility model discloses when the operation, wind-powered electricity generation or photovoltaic convert the direct current that can be used to the brineelectrolysis into through rectifier transformer 1 as the power, and electrolysis trough 2 adopts alkaline electrolysis water electrolysis cell, and total hydrogen manufacturing scale is 1000Nm3H, a mode of connecting two electrolytic cells in parallel is adopted, and the hydrogen production scale of each electrolytic cell is 500Nm3Per electrolytic cell, the minimum hydrogen production capacity is 200Nm3And h, determining the output condition of the electrolytic cell by the electrolytic cell controller 9 according to the output condition of wind power or photovoltaic power: when hydrogen production up to 1000Nm is required3When the hydrogen is discharged, the hydrogen enters the hydrogen drop catcher of the gas drop catcher 5 to remove water vapor, and the hydrogen at the outlet of the hydrogen drop catcher can be collected, purified or utilized. Electrolyte flowing out of the anodes of the two electrolytic tanks 2 converges into the oxygen separator of the gas-liquid separator 3, oxygen escapes from the oxygen separator and then enters the oxygen cooler of the gas cooler 4 for cooling, the cooled oxygen enters the oxygen drip catcher of the gas drip catcher 5 for removing water vapor, and the oxygen at the outlet of the oxygen drip catcher can be collected, purified or utilized. And the electrolyte remained after the gas in the gas-liquid separator 3 escapes circulates through the electrolyte heat exchanger 6 to be cooled, and circulates back to the electrolytic cell 2. The circulating cooling system 7 adopts water as a cooling medium, and the cooling medium is introduced into the electrolyte heat exchanger 6 and the gas cooler 3 to respectively cool the electrolyte and the gas. Water is consumed in the electrolysis process, and the water replenishing device 8 replenishes pure water into the gas-liquid separator 3.
Example 2
As shown in figure 1, wind power or photovoltaic power is used as a power supply and is converted into direct current which can be used for electrolyzing water through a rectifier transformer 1, an alkaline electrolysis water electrolyzer is adopted as an electrolysis bath 2, and the total hydrogen production scale is 1000Nm3H, a mode of connecting two electrolytic cells in parallel is adopted, and the hydrogen production scale of each electrolytic cell is 500Nm3Per cellThe minimum hydrogen production capacity is 200Nm3And h, determining the output condition of the electrolytic cell by the electrolytic cell controller 9 according to the output conditions of wind power and photovoltaic: when the hydrogen production amount is required to reach 200Nm3At the time of the reaction, one electrolytic tank 2 stops running, and the hydrogen production output of the other electrolytic tank 2 is 200Nm3And h, stopping the running electrolytic tank 2, stopping the circulation of the electrolyte, adjusting the electrolytic current to zero, collecting the electrolyte flowing out of the cathode in the running electrolytic tank 2 into a hydrogen separator of the gas-liquid separator 3, allowing the hydrogen to escape from the hydrogen separator and then enter a hydrogen cooler of the gas cooler 4 for cooling, allowing the cooled hydrogen to enter a hydrogen catcher of the gas catcher 5 for removing water vapor, and collecting, purifying or utilizing the hydrogen at the outlet of the hydrogen catcher. In the running electrolytic cell 2, electrolyte flowing out of an anode converges into the oxygen separator of the gas-liquid separator 3, oxygen escapes from the oxygen separator and then enters the oxygen cooler of the gas cooler 4 to be cooled, the cooled oxygen enters the oxygen drip catcher of the gas drip catcher 5 to remove water vapor, oxygen at the outlet of the oxygen drip catcher can be collected, purified or utilized, the electrolyte remaining after the gas escapes from the gas-liquid separator 3 is cooled through the electrolyte heat exchanger 6 and returns to the electrolytic cell 2 in a circulating manner, the circulating cooling system 7 adopts water as a cooling medium, and the cooling medium is introduced into the electrolyte heat exchanger 6 and the gas cooler 3 to cool the electrolyte and the gas respectively. Water is consumed in the electrolysis process, and the water replenishing device 8 replenishes pure water into the gas-liquid separator 3.
It will be appreciated by those skilled in the art that the invention may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. The embodiments disclosed above are therefore to be considered in all respects as illustrative and not restrictive. All changes which come within the scope of the invention or which are equivalent to the scope of the invention are embraced by the invention.
Claims (9)
1. A wide power water electrolysis hydrogen production system is characterized in that: comprises a rectifier transformer (1), an electrolytic bath (2), a gas-liquid separator (3), a gas cooler (4) and a gas drip catcher (5);
the fluctuating power supply is connected with the electrolytic cell (2) through the rectifier transformer (1) and is used for supplying power to the electrolytic cell (2);
the gas-liquid separator (3) comprises a hydrogen separator and an oxygen separator, the gas cooler (4) comprises a hydrogen cooler and an oxygen cooler, the gas droplet catcher (5) comprises a hydrogen droplet catcher and an oxygen droplet catcher, a cathode electrolyte outlet of the electrolytic cell (2) is communicated with a hydrogen separator of the gas-liquid separator (3), the anolyte liquid outlet of the electrolytic tank (2) is communicated with the oxygen separator of the gas-liquid separator (3), the gas outlet of the hydrogen separator is communicated with the gas inlet of the hydrogen cooler, the gas outlet of the oxygen separator is communicated with the gas inlet of the oxygen cooler, the gas outlet of the hydrogen cooler is communicated with the gas inlet of the hydrogen drip catcher, and the gas outlet of the oxygen cooler is communicated with the gas inlet of the oxygen drip catcher.
2. The wide power water electrolysis hydrogen production system according to claim 1, characterized in that: the fluctuating power supply comprises wind power or photovoltaic.
3. The wide power water electrolysis hydrogen production system according to claim 1, characterized in that: and an electrolyte residual liquid outlet of the gas-liquid separator (3) is communicated with an infusion port of the electrolytic bath (2) through an electrolyte heat exchanger (6) and is used for recycling the electrolyte.
4. A wide power water electrolysis hydrogen production system according to claim 1 or 3, characterized in that: and a water supplementing device (8) is arranged on a pure water supplementing port of the gas-liquid separator (3).
5. The wide power water electrolysis hydrogen production system according to claim 3, characterized in that: the electrolytic cell is characterized by further comprising a circulating cooling system (7), wherein the circulating cooling system (7) is respectively in heat exchange with the gas cooler (4) and the electrolyte heat exchanger (6).
6. The wide power water electrolysis hydrogen production system according to claim 5, characterized in that: the circulating cooling system (7) is a liquid circulating cooling system or a gas circulating cooling system.
7. The wide power water electrolysis hydrogen production system according to claim 1, characterized in that: the electrolytic cell (2) is provided with an electrolytic cell controller (9) for controlling the running current, the pressure, the temperature, the gas purity, the electrolyte flow and the liquid level of the electrolytic cell (2).
8. The wide power water electrolysis hydrogen production system according to claim 1, characterized in that: the electrolytic tank (2) is an alkaline water electrolytic tank or a solid polymer electrolytic tank.
9. A wide power electrolytic water hydrogen production system according to claim 1 or 2 or 3 or 5 or 6 or 7 or 8, characterized in that: the number of the electrolytic tanks (2) is one or more, and a plurality of electrolytic tanks adopt a parallel mode.
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| CN202020484342.6U CN211872097U (en) | 2020-04-03 | 2020-04-03 | Wide-power water electrolysis hydrogen production system |
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| CN202020484342.6U CN211872097U (en) | 2020-04-03 | 2020-04-03 | Wide-power water electrolysis hydrogen production system |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111364052A (en) * | 2020-04-03 | 2020-07-03 | 中国华能集团清洁能源技术研究院有限公司 | Wide-power water electrolysis hydrogen production system and method |
| CN112899706A (en) * | 2021-01-18 | 2021-06-04 | 阳光电源股份有限公司 | Water electrolysis hydrogen production system and control method thereof |
| CN112981437A (en) * | 2021-02-07 | 2021-06-18 | 阳光电源股份有限公司 | Water electrolysis hydrogen production system and gas purity control method thereof |
| CN114790558A (en) * | 2022-04-29 | 2022-07-26 | 阳光氢能科技有限公司 | New energy hydrogen production system and switching control method thereof |
| CN116377464A (en) * | 2023-04-21 | 2023-07-04 | 绍兴西爱西尔数控科技有限公司 | Circulating water-cooled safety explosion-proof electrolytic tank set |
| WO2023226425A1 (en) * | 2022-05-23 | 2023-11-30 | 阳光氢能科技有限公司 | Hydrogen production system, and thermal management method and apparatus therefor |
-
2020
- 2020-04-03 CN CN202020484342.6U patent/CN211872097U/en active Active
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111364052A (en) * | 2020-04-03 | 2020-07-03 | 中国华能集团清洁能源技术研究院有限公司 | Wide-power water electrolysis hydrogen production system and method |
| CN112899706A (en) * | 2021-01-18 | 2021-06-04 | 阳光电源股份有限公司 | Water electrolysis hydrogen production system and control method thereof |
| CN112899706B (en) * | 2021-01-18 | 2023-11-07 | 阳光氢能科技有限公司 | Water electrolysis hydrogen production system and control method thereof |
| CN112981437A (en) * | 2021-02-07 | 2021-06-18 | 阳光电源股份有限公司 | Water electrolysis hydrogen production system and gas purity control method thereof |
| CN112981437B (en) * | 2021-02-07 | 2022-12-16 | 阳光氢能科技有限公司 | Water electrolysis hydrogen production system and gas purity control method thereof |
| CN114790558A (en) * | 2022-04-29 | 2022-07-26 | 阳光氢能科技有限公司 | New energy hydrogen production system and switching control method thereof |
| WO2023226425A1 (en) * | 2022-05-23 | 2023-11-30 | 阳光氢能科技有限公司 | Hydrogen production system, and thermal management method and apparatus therefor |
| CN116377464A (en) * | 2023-04-21 | 2023-07-04 | 绍兴西爱西尔数控科技有限公司 | Circulating water-cooled safety explosion-proof electrolytic tank set |
| CN116377464B (en) * | 2023-04-21 | 2023-12-29 | 绍兴西爱西尔数控科技有限公司 | Circulating water-cooled safety explosion-proof electrolytic tank set |
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