CN219603703U - Combined type electrolytic hydrogen production equipment - Google Patents
Combined type electrolytic hydrogen production equipment Download PDFInfo
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- CN219603703U CN219603703U CN202223510080.4U CN202223510080U CN219603703U CN 219603703 U CN219603703 U CN 219603703U CN 202223510080 U CN202223510080 U CN 202223510080U CN 219603703 U CN219603703 U CN 219603703U
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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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- Electrolytic Production Of Non-Metals, Compounds, Apparatuses Therefor (AREA)
Abstract
The utility model discloses a combined type electrolytic hydrogen production device which comprises a pure water electrolytic hydrogen production unit, an alkaline electrolytic hydrogen production unit, a first steam-water separator, a heat preservation water tank, a second steam-water separator, a first cooling water device, a second cooling water device and a heat exchange device, wherein the first steam-water separator is connected with the alkaline electrolytic hydrogen production unit; the alkaline water inlet is arranged on the heat preservation water tank and is used for receiving alkaline water, and the alkaline water is pumped into the alkaline electrolysis hydrogen production unit through the water outlet of the heat preservation water tank after maintaining a certain temperature in the heat preservation water tank, so that the alkaline electrolysis hydrogen production unit can quickly start response. The water temperature is maintained by the heat preservation water tank, so that the starting time of the alkaline electrolysis hydrogen production system is effectively shortened, and the energy efficiency is improved. The utility model can realize a single hydrogen production process mode and a compound hydrogen production process mode, and when the alkaline electrolysis hydrogen production device is started, the high-temperature alkaline water in the system is utilized to ensure the quick starting of the alkaline electrolysis hydrogen production system, so that the flexibility of the compound hydrogen production equipment is improved.
Description
Technical Field
The utility model belongs to the technical field of electrolytic hydrogen production, and particularly relates to a combined electrolytic hydrogen production device.
Background
At present, the alkaline electrolysis hydrogen production technology has lower process cost, relatively mature technology and slower equipment response speed.
Disclosure of Invention
The utility model aims to provide a combined type electrolytic hydrogen production device, which effectively shortens the starting time of an alkaline electrolytic hydrogen production system and improves the energy efficiency.
In order to solve the problems, the technical scheme of the utility model is as follows:
a composite electrolytic hydrogen production plant comprising: the device comprises a pure water electrolysis hydrogen production unit, a first steam-water separator, a heat preservation water tank, an alkaline water electrolysis hydrogen production unit, a second steam-water separator, a first cooling water device, a second cooling water device and a heat exchange device;
the pure water electrolysis hydrogen production unit is communicated with the first steam-water separator, and generated hydrogen and oxygen are conveyed to the first steam-water separator;
the water inlet of the first steam-water separator is connected with the water outlet of the first cooling water device; the water outlet of the first steam-water separator is respectively connected with the water inlet of the second cooling water device and the water inlet of the second steam-water separator, and a first control valve is arranged on the communication pipeline;
the heat generated by the first steam-water separator is transmitted to the heat exchange device, and the heat exchange device outputs pure water to the pure water electrolysis hydrogen production unit;
the heat preservation water tank is provided with an alkaline water inlet for receiving alkaline water, and the alkaline water is pumped into the alkaline electrolysis hydrogen production unit through a water outlet of the heat preservation water tank after maintaining a certain temperature in the heat preservation water tank, so that the alkaline electrolysis hydrogen production unit can quickly start response;
the alkaline water electrolysis hydrogen production unit is communicated with the second steam-water separator, and generated hydrogen and oxygen are conveyed to the second steam-water separator; and the water outlet of the second steam-water separator is connected with the water inlet of the first cooling water device.
According to one embodiment of the utility model, a second control valve is arranged on a communication pipeline between the water outlet of the heat exchange device and the water inlet of the heat preservation water tank, and the heat preservation water tank forms heat preservation water circulation through the heat exchange device, the second control valve, the pure water electrolysis hydrogen production unit and the alkaline electrolysis hydrogen production unit, so that the water temperature in the heat preservation water tank is kept at 50-70 ℃.
According to an embodiment of the utility model, the second steam-water separator is communicated with the heat preservation water tank through a second control valve;
when the alkaline electrolysis hydrogen production unit is operated, the second control valve is communicated with the heat preservation water tank and the second steam-water separator;
and when the pure water electrolysis hydrogen production unit is operated and the alkaline electrolysis hydrogen production unit is not operated, the second control valve is communicated with the heat exchange device and the heat preservation water tank.
According to the embodiment of the utility model, when the pure water electrolysis hydrogen production unit is not started and the alkaline electrolysis hydrogen production unit is started, the first cooling water device pumps low-temperature circulating water into the second steam-water separator for cooling after passing through the first control valve through the internal water pump; meanwhile, the first control valve is communicated with the first steam-water separator and the second steam-water separator, and does not pass through the second cooling water device.
According to the embodiment of the utility model, when the pure water electrolysis hydrogen production unit is started and the alkaline electrolysis hydrogen production unit is not started, the first cooling water device cools the first steam-water separator through the internal water pump, and cooling water output from the water outlet of the first steam-water separator passes through the first control valve and then returns to the first cooling water device from the second steam-water separator.
According to the embodiment of the utility model, when the pure water electrolytic hydrogen production unit and the alkaline electrolytic hydrogen production unit are started simultaneously and run at full load, the first cooling water device cools the first steam-water separator through the internal water pump, and cooling water output from the water outlet of the first steam-water separator is cooled again through the second cooling water device and then cooled back to the first cooling water device through the second steam-water separator.
According to an embodiment of the utility model, when the pure water electrolysis hydrogen production unit and the alkaline electrolysis hydrogen production unit are started simultaneously and run at the running load of not more than 70%, the second cooling water device does not work, and the first control valve is communicated with the first steam-water separator and the second steam-water separator.
By adopting the technical scheme, the utility model has the following advantages and positive effects compared with the prior art:
1) According to the combined type electrolytic hydrogen production device, the alkaline water inlet is arranged on the heat preservation water tank and is used for receiving alkaline water, and the alkaline water is pumped into the alkaline electrolytic hydrogen production unit through the water outlet of the heat preservation water tank after the alkaline water maintains a certain temperature in the heat preservation water tank, so that the alkaline electrolytic hydrogen production unit can quickly start response. The water temperature is maintained by the heat preservation water tank, so that the starting time of the alkaline electrolysis hydrogen production system is effectively shortened, and the energy efficiency is improved.
2) According to the combined type electrolytic hydrogen production equipment in the embodiment of the utility model, a single type hydrogen production process mode can be realized, a combined type hydrogen production process mode can be realized, when an alkaline electrolytic hydrogen production device is started, high-temperature alkaline water in the system is utilized to ensure the rapid starting of the alkaline electrolytic hydrogen production system, and the flexibility of the combined type hydrogen production equipment is improved.
Drawings
FIG. 1 is a schematic diagram of a combined electrolysis hydrogen plant in accordance with one embodiment of the utility model.
Reference numerals illustrate:
1: a pure water electrolysis hydrogen production unit; 2: a first steam-water separator; 3: a heat preservation water tank; 4: an alkaline water electrolysis hydrogen production unit; 5: a second steam-water separator; 6: a first cooling water device; 7: a second cooling water device; 8: a heat exchange device; 9: a first control valve; 10: and a second control valve.
Detailed Description
The utility model provides a compound electrolytic hydrogen production device which is further described in detail below with reference to the accompanying drawings and specific examples. Advantages and features of the utility model will become more apparent from the following description and from the claims.
Referring to fig. 1, the embodiment provides a compound electrolytic hydrogen production device, which comprises a pure water electrolytic hydrogen production unit 1, a first steam-water separator 2, a heat preservation water tank 3, an alkaline water electrolytic hydrogen production unit 4, a second steam-water separator 5, a first cooling water device 6, a second cooling water device 7 and a heat exchange device 8.
Wherein, pure water electrolysis hydrogen production unit 1 communicates with first vapour water separator 2, carries the hydrogen and the oxygen that produce to first vapour water separator 2.
The water inlet of the first steam-water separator 2 is connected with the water outlet of the first cooling water device 6, the water outlet of the first steam-water separator 2 is respectively connected with the water inlet of the second cooling water device 7 and the water inlet of the second steam-water separator 5, and a first control valve 9 is arranged on a communication pipeline.
The heat generated by the first steam-water separator is transmitted to a heat exchange device 8, and pure water is output to the pure water electrolysis hydrogen production unit 1 by the heat exchange device.
The heat preservation water tank 3 is provided with an alkaline water inlet for receiving alkaline water, and the alkaline water is pumped into the alkaline water electrolysis hydrogen production unit 4 through a water outlet of the heat preservation water tank 3 after maintaining a certain temperature in the heat preservation water tank 3, so that the alkaline water electrolysis hydrogen production unit 4 can quickly start response.
The alkaline water electrolysis hydrogen production unit 4 is communicated with the second steam-water separator 5, and the generated hydrogen and oxygen are conveyed to the second steam-water separator 5; the water outlet of the second steam-water separator 5 is connected with the water inlet of the first cooling water device 6.
A second control valve 10 is arranged on a communication pipeline between the water outlet of the heat exchange device 8 and the water inlet of the heat preservation water tank 3, and the heat preservation water tank 3 forms heat preservation water circulation through the heat exchange device 8, the second control valve 10, the pure water electrolysis hydrogen production unit 1 and the alkaline electrolysis hydrogen production unit 4, so that the water temperature in the heat preservation water tank 3 is kept at 50-70 ℃.
The temperature control of the second cooling water device 7 is coupled with the temperature control of the whole hydrogen production equipment, namely, the alkaline electrolysis hydrogen production unit 4 and the pure water electrolysis hydrogen production unit 1 are in different starting states, and the second cooling water device 7 is in a closing state.
The second control valve 10 is normally communicated with the heat preservation water tank 3 and the second steam-water separator 5, so that an alkaline water circulation loop is formed when the alkaline electrolysis hydrogen production unit 4 operates, and the second control valve 10 is communicated with the heat exchange device 8 and the heat preservation water tank 3 when the pure water electrolysis hydrogen production unit 1 operates and the alkaline electrolysis hydrogen production unit 4 does not operate. After the alkaline water maintains a certain temperature in the heat preservation water tank 3, the alkaline water is pumped into the alkaline electrolysis hydrogen production unit 4 through a water outlet of the heat preservation water tank 3, so that the alkaline electrolysis hydrogen production unit 4 can quickly start response.
When the pure water electrolysis hydrogen production unit 1 is not started and the alkaline electrolysis hydrogen production unit 4 is started, the first cooling water device 6 pumps the low-temperature circulating water to the second steam-water separator 5 for cooling after passing through the first control valve 9 through the internal water pump. The first control valve 9 now communicates the first steam-water separator 2 and the second steam-water separator 5 without passing through the second cooling water device 7. The alkaline water in the heat preservation water tank 3 enters the alkaline water electrolysis hydrogen production unit 4 to produce hydrogen by electrolysis, and the formed alkaline water circulation loop enters the heat preservation water tank 3 to maintain the temperature of the alkaline water in the heat preservation water tank 3.
When the pure water electrolysis hydrogen production unit 1 is started and the alkaline electrolysis hydrogen production unit 4 is not started, the first cooling water device 6 cools the first steam-water separator 2 through the internal water pump, and cooling water from the water outlet of the first steam-water separator 2 returns to the first cooling water device 6 from the second steam-water separator 5 after passing through the first control valve 9. If the long-term standing temperature of the heat preservation water tank 3 is lower than the threshold value, the alkaline water in the heat preservation water tank 3 and the heat exchange device 8 form heat exchange, and the temperature of the alkaline water in the heat preservation water tank 3 is maintained.
When the pure water electrolysis hydrogen production unit 1 and the alkaline electrolysis hydrogen production unit 4 are started simultaneously and run at full load, the first cooling water device 6 cools the first steam-water separator 2 through the internal water pump, cooling water from the water outlet of the first steam-water separator 2 is cooled by the second steam-water separator 5 after being cooled again by the second cooling water device 7, and finally returns to the first cooling water device 6.
When the pure water electrolysis hydrogen production unit 1 and the alkaline electrolysis hydrogen production unit 4 are started simultaneously and the operation load is not more than 70%, the second cooling water device 7 does not work, and the first control valve 9 is communicated with the first steam-water separator 2 and the second steam-water separator 5.
The combined type electrolytic hydrogen production equipment in the embodiment can realize a single hydrogen production process mode and a combined type hydrogen production process mode, and when the alkaline electrolytic hydrogen production device is started, the high-temperature alkaline water in the system is utilized to ensure the rapid starting of the alkaline electrolytic hydrogen production system, so that the flexibility of the combined type hydrogen production equipment is improved.
The embodiments of the present utility model have been described in detail with reference to the drawings, but the present utility model is not limited to the above embodiments. Even if various changes are made to the present utility model, it is within the scope of the appended claims and their equivalents to fall within the scope of the utility model.
Claims (7)
1. A composite electrolytic hydrogen production apparatus, comprising: the device comprises a pure water electrolysis hydrogen production unit, a first steam-water separator, a heat preservation water tank, an alkaline water electrolysis hydrogen production unit, a second steam-water separator, a first cooling water device, a second cooling water device and a heat exchange device;
the air outlet of the pure water electrolysis hydrogen production unit is communicated with the air inlet of a first steam-water separator, and the water inlet of the first steam-water separator is connected with the water outlet of the first cooling water device; the water outlet of the first steam-water separator is respectively connected with the water inlet of the second cooling water device and the water inlet of the second steam-water separator, and a first control valve is arranged on the communication pipeline;
the hot gas outlet of the first steam-water separator is communicated with the inlet of the heat exchange device, and the outlet of the heat exchange device is communicated with the water inlet of the pure water electrolysis hydrogen production unit;
an alkaline water inlet is formed in the heat preservation water tank, and a water outlet of the heat preservation water tank is communicated with a water inlet of the alkaline water electrolysis hydrogen production unit;
the air outlet of the alkaline water electrolysis hydrogen production unit is communicated with the air inlet of the second steam-water separator, and the water outlet of the second steam-water separator is connected with the water inlet of the first cooling water device.
2. The combined type electrolytic hydrogen production device according to claim 1, wherein a second control valve is arranged on a communication pipeline between a water outlet of the heat exchange device and a water inlet of the heat preservation water tank, and the heat preservation water tank forms heat preservation water circulation through the heat exchange device, the second control valve, the pure water electrolytic hydrogen production unit and the alkaline electrolytic hydrogen production unit, so that the water temperature in the heat preservation water tank is kept at 50-70 ℃.
3. The combined type hydrogen production apparatus by electrolysis according to claim 2, wherein the second steam-water separator is communicated with the heat preservation water tank through a second control valve;
when the alkaline electrolysis hydrogen production unit is operated, the second control valve is communicated with the heat preservation water tank and the second steam-water separator;
and when the pure water electrolysis hydrogen production unit is operated and the alkaline electrolysis hydrogen production unit is not operated, the second control valve is communicated with the heat exchange device and the heat preservation water tank.
4. The combined type electrolytic hydrogen production apparatus according to claim 1, wherein when the pure water electrolytic hydrogen production unit is not started and the alkaline electrolytic hydrogen production unit is started, the first cooling water device pumps the low-temperature circulating water through the first control valve by the internal water pump into the second steam-water separator for cooling; meanwhile, the first control valve is communicated with the first steam-water separator and the second steam-water separator, and does not pass through the second cooling water device.
5. The combined type hydrogen electrolysis apparatus according to claim 1, wherein when the pure water hydrogen electrolysis unit is started and the alkaline hydrogen electrolysis unit is not started, the first cooling water device cools the first steam-water separator by the internal water pump, and the cooling water output from the water outlet of the first steam-water separator returns to the first cooling water device from the second steam-water separator after passing through the first control valve.
6. The combined type hydrogen producing electrolysis apparatus according to claim 1, wherein the first cooling water device cools the first steam-water separator by the internal water pump when the pure water hydrogen electrolysis unit and the alkaline hydrogen electrolysis unit are started simultaneously and operate at full load, and the cooling water outputted from the water outlet of the first steam-water separator is cooled back to the first cooling water device by the second steam-water separator after being cooled again by the second cooling water device.
7. The combined type hydrogen electrolysis apparatus according to claim 1, wherein the second cooling water device is not operated when the pure water hydrogen electrolysis unit and the alkaline hydrogen electrolysis unit are started simultaneously and operated at an operation load of not more than 70%, and the first control valve is communicated with the first steam-water separator and the second steam-water separator.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN202223510080.4U CN219603703U (en) | 2022-12-28 | 2022-12-28 | Combined type electrolytic hydrogen production equipment |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223510080.4U CN219603703U (en) | 2022-12-28 | 2022-12-28 | Combined type electrolytic hydrogen production equipment |
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| CN219603703U true CN219603703U (en) | 2023-08-29 |
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| CN202223510080.4U Active CN219603703U (en) | 2022-12-28 | 2022-12-28 | Combined type electrolytic hydrogen production equipment |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117888143A (en) * | 2024-01-12 | 2024-04-16 | 航天长征化学工程股份有限公司 | Energy efficiency control system and energy efficiency control method for coupling electrolysis hydrogen production |
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2022
- 2022-12-28 CN CN202223510080.4U patent/CN219603703U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117888143A (en) * | 2024-01-12 | 2024-04-16 | 航天长征化学工程股份有限公司 | Energy efficiency control system and energy efficiency control method for coupling electrolysis hydrogen production |
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