CN216141634U - Electrolyte temperature control system suitable for hydrogen production by alkaline electrolyzed water - Google Patents
Electrolyte temperature control system suitable for hydrogen production by alkaline electrolyzed water Download PDFInfo
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- CN216141634U CN216141634U CN202121542833.2U CN202121542833U CN216141634U CN 216141634 U CN216141634 U CN 216141634U CN 202121542833 U CN202121542833 U CN 202121542833U CN 216141634 U CN216141634 U CN 216141634U
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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 relates to an electrolyte temperature control system suitable for hydrogen production by alkaline electrolyzed water, which comprises a pure water tank, a hydrogen production system by electrolyzed water, a hydrogen storage tank, an outlet pipeline, an inlet pipeline, a heat source control system and a cold source control system, wherein the pure water tank is arranged on the upstream pipeline of the hydrogen production system by electrolyzed water, the hydrogen storage tank is arranged on the downstream pipeline of the hydrogen production system by electrolyzed water, the heat production system by electrolyzed water further comprises the heat source and the cold source control system, the heat source control system comprises a heat source and a first adjusting device, the cold source control system comprises a cold source and a second adjusting device, the inlet of the heat source control system and the inlet of the cold source control system are respectively connected with the outlet pipeline, and the outlet of the heat source control system and the outlet of the cold source control system are respectively connected with the inlet pipeline. The utility model cools the hydrogen production equipment when the hydrogen production equipment is in full-load operation, and can also heat the hydrogen production equipment when the hydrogen production equipment is in standby operation, so that the hydrogen production equipment can flexibly operate along with the new energy working condition.
Description
Technical Field
The utility model belongs to the technical field of new energy, and relates to an electrolyte temperature control system suitable for hydrogen production by alkaline electrolysis of water.
Background
New energy power sources such as wind power and photovoltaic power have instability and volatility, and great challenges are brought to the stability and safety of a power grid based on the characteristics of the new energy power sources.
The water electrolysis hydrogen production equipment is key equipment of a renewable energy water electrolysis hydrogen production technology, and has strong adaptability to unstable power output of a new energy power supply when the power supply is the new energy. The existing alkaline water electrolytic cell has the advantages of mature technology, low cost and the like, but has the disadvantages of poor dynamic regulation, low efficiency, short service life and the like under the working condition of a fluctuating power supply. The improvement of the applicability of the water electrolysis hydrogen production system under the fluctuation working condition through technical innovation has become the key point of research of people in the field of new energy hydrogen production.
Due to the instability of light and wind resources, the new energy power supply also shows volatility and instability even in a discontinuous way. Under the off-grid condition, the power supply of the alkaline water electrolytic cell is unstable, the normal working temperature of the alkaline water electrolytic cell is 90 +/-5 ℃, and the cold start needs 2 to 3 hours after the power supply is cut off every time. If the hot standby state (90. + -. 5 ℃ C.) of the alkaline water electrolytic cell is maintained, the restart after the power supply is cut off is called hot start, and the hot start can be shortened to several minutes in practice.
Therefore, how to keep the hot standby state of the hydrogen production apparatus, shorten the start-up time of the alkaline water electrolytic cell, save energy, and reduce cost has been the focus of attention of researchers.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide an electrolyte temperature control system suitable for hydrogen production by alkaline electrolysis of water.
The technical means adopted by the present invention are as follows.
The electrolyte temperature control system is characterized by further comprising a heat source control system and a cold source control system, wherein the heat source control system comprises a heat source and a first adjusting device, the cold source control system comprises a cold source and a second adjusting device, the inlet of the heat source control system and the inlet of the cold source control system are respectively connected with the outlet pipeline, and the outlet of the heat source control system and the outlet of the cold source control system are respectively connected with the inlet pipeline.
The first regulating device includes a first valve provided on an upstream pipe of the heat source and a second valve provided on a downstream pipe of the heat source; the second adjusting device includes a third valve disposed on the upstream line of the cold source and a fourth valve disposed on the downstream line of the cold source.
The water electrolysis hydrogen production system is an alkaline water electrolysis bath.
The heat source is hot water or steam.
The cold source is cooling water.
Still contain the new forms of energy power, this new forms of energy power is photovoltaic cell or wind-powered electricity generation.
The beneficial effects produced by the utility model are as follows.
(1) The system comprises a heat source control system and a cold source control system, can cool the hydrogen production equipment when the hydrogen production equipment is in full-load operation, can heat the hydrogen production equipment when the hydrogen production equipment is in standby operation, and can be switched at any time, so that the hydrogen production equipment can flexibly operate along with the new energy working condition.
(2) The utility model utilizes the heat source to maintain the hot standby state of the alkaline water electrolytic cell, shortens the starting time of the alkaline water electrolytic cell, can make full use of the alkaline water electrolytic cell to produce hydrogen, and improves the utilization efficiency of energy.
(3) The utility model reduces the power consumption to a certain extent, reduces the operation cost and saves the cost.
Drawings
FIG. 1 is a system flow diagram of the present invention.
Detailed Description
As shown in figure 1, the electrolyte temperature control system suitable for alkaline water electrolysis hydrogen production comprises a pure water tank 1, a water electrolysis hydrogen production system 2 and a hydrogen storage tank 3. The pure water tank 1 is arranged on an upstream pipeline of the water electrolysis hydrogen production system 2, and the water quality of the pure water in the pure water tank 1 meets the water quality requirement in GB 37562 technical Condition of pressure type water electrolysis hydrogen production System. The water electrolysis hydrogen production system 2 is an alkaline water electrolytic tank, the hydrogen storage tank 3 is arranged on a downstream pipeline of the water electrolysis hydrogen production system 2, and the water electrolysis hydrogen production system 2 further comprises an outlet pipeline 21 and an inlet pipeline 22.
The system also comprises a heat source control system and a cold source control system, wherein the heat source control system comprises a heat source 4 and a first adjusting device, the heat source 4 is hot water or steam, and the alkali liquor in the water electrolysis hydrogen production system 2 can be heated to 60-80 ℃; the first regulating means comprises a first valve 41 and a second valve 42, the first valve 41 being arranged on the upstream line of the heat source 4 and the second valve 42 being arranged on the downstream line of the heat source 4. The cold source control system comprises a cold source 5 and a second adjusting device, wherein the cold source 5 is cooling water which can cool the alkali liquor in the water electrolysis hydrogen production system 2 to 60-80 ℃, and the cooling water can come from an indirect air cooling tower, a direct current cooling system and the like; the second adjusting device includes a third valve 51 and a fourth valve 52, the third valve 51 is disposed on the upstream line of the cold source 5, and the fourth valve 52 is disposed on the downstream line of the cold source 5. The inlet of the heat source control system and the inlet of the cold source control system are respectively connected with the outlet pipeline 21, and the outlet of the heat source control system and the outlet of the cold source control system are respectively connected with the inlet pipeline 22.
The system also comprises a new energy power supply 6, wherein the new energy power supply 6 is a photovoltaic cell or wind power, and the new energy power supply 6 provides power for the water electrolysis hydrogen production system 2.
When the power generated by the new energy power supply 6 is gradually increased and the temperature of the alkali liquor in the water electrolysis hydrogen production system 2 reaches 90 +/-5 ℃ or above, about 30% of the electric energy is used for heating the alkali liquor, so that the temperature of the circulating alkali liquor in the water electrolysis hydrogen production system 2 is continuously increased. In this case, the alkali liquor of the hydrogen production system 2 from water electrolysis flows out through the outlet pipeline 21, the first valve 41 and the second valve 42 are closed, the alkali liquor enters the inlet of the cold source control system, at this time, the third valve 51 and the fourth valve 52 are opened, the alkali liquor of the hydrogen production system 2 from water electrolysis is cooled by the cold source 5, and the cooled alkali liquor flows out through the outlet of the cold source control system and then enters the inlet pipeline 22 of the hydrogen production system 2 from water electrolysis. The temperature of the alkali liquor in the inlet pipeline 22 of the water electrolysis hydrogen production system 2 is controlled to be 60-80 ℃ by utilizing the cold source control system.
When the power generated by the new energy power supply 6 is gradually reduced and the temperature of the alkali liquor in the water electrolysis hydrogen production system 2 is reduced to 60 ℃ or below, in order to keep the alkali liquor at a proper temperature, in this case, the alkali liquor of the water electrolysis hydrogen production system 2 flows out through the outlet pipeline 21, the third valve 51 and the fourth valve 52 are closed, the alkali liquor enters the inlet of the heat source control system, the first valve 41 and the second valve 42 are opened, the alkali liquor of the water electrolysis hydrogen production system 2 is heated by the heat source 4, and the heated alkali liquor flows out through the outlet of the heat source control system and then enters the inlet pipeline 22 of the water electrolysis hydrogen production system 2. The temperature of the alkali liquor in the inlet pipeline 22 of the water electrolysis hydrogen production system 2 is controlled to be 60-80 ℃ by utilizing the heat source control system.
Claims (6)
1. An electrolyte temperature control system suitable for hydrogen production by alkaline electrolysis of water comprises a pure water tank (1), a hydrogen production system by electrolysis of water (2) and a hydrogen storage tank (3), the pure water tank (1) is arranged on a pipeline upstream of the water electrolysis hydrogen production system (2), the hydrogen storage tank (3) is arranged on the downstream pipeline of the water electrolysis hydrogen production system (2), the water electrolysis hydrogen production system (2) also comprises an outlet pipeline (21) and an inlet pipeline (22), it is characterized by also comprising a heat source control system and a cold source control system, wherein the heat source control system comprises a heat source (4) and a first adjusting device, the cold source control system comprises a cold source (5) and a second adjusting device, wherein an inlet of the heat source control system and an inlet of the cold source control system are respectively connected with the outlet pipeline (21), the outlet of the heat source control system and the outlet of the cold source control system are respectively connected with the inlet pipeline (22).
2. The electrolyte temperature control system suitable for hydrogen production by alkaline electrolysis of water according to claim 1, wherein the first regulating means comprises a first valve (41) and a second valve (42), the first valve (41) being disposed on the upstream line of the heat source (4), the second valve (42) being disposed on the downstream line of the heat source (4); the second regulating device comprises a third valve (51) and a fourth valve (52), the third valve (51) is arranged on the upstream pipeline of the cold source (5), and the fourth valve (52) is arranged on the downstream pipeline of the cold source (5).
3. The electrolyte temperature control system suitable for the hydrogen production by alkaline water electrolysis according to claim 1, wherein the water electrolysis hydrogen production system (2) is an alkaline water electrolysis cell.
4. The electrolyte temperature control system suitable for hydrogen production by alkaline electrolysis of water according to claim 1, wherein the heat source (4) is hot water or steam.
5. The electrolyte temperature control system suitable for hydrogen production by alkaline electrolysis of water according to claim 1, wherein the cold source (5) is cooling water.
6. The electrolyte temperature control system suitable for hydrogen production by alkaline electrolysis of water according to claim 1, further comprising a new energy power supply (6), wherein the new energy power supply (6) is a photovoltaic cell or wind power.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121542833.2U CN216141634U (en) | 2021-07-07 | 2021-07-07 | Electrolyte temperature control system suitable for hydrogen production by alkaline electrolyzed water |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121542833.2U CN216141634U (en) | 2021-07-07 | 2021-07-07 | Electrolyte temperature control system suitable for hydrogen production by alkaline electrolyzed water |
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| Publication Number | Publication Date |
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| CN216141634U true CN216141634U (en) | 2022-03-29 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202121542833.2U Active CN216141634U (en) | 2021-07-07 | 2021-07-07 | Electrolyte temperature control system suitable for hydrogen production by alkaline electrolyzed water |
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| CN (1) | CN216141634U (en) |
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2021
- 2021-07-07 CN CN202121542833.2U patent/CN216141634U/en active Active
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