CN218642839U - PEM water electrolysis hydrogen production system with temperature control function - Google Patents
PEM water electrolysis hydrogen production system with temperature control function Download PDFInfo
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- CN218642839U CN218642839U CN202223328396.1U CN202223328396U CN218642839U CN 218642839 U CN218642839 U CN 218642839U CN 202223328396 U CN202223328396 U CN 202223328396U CN 218642839 U CN218642839 U CN 218642839U
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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 provides a PEM water electrolysis hydrogen production system with temperature control function, which relates to the technical field of PEM water electrolysis hydrogen production, and comprises a gas-liquid separator, a circulating pump I, a heat exchanger I, an ion exchanger, a heat exchanger II, an electric heater and an electrolytic bath which are connected in sequence, wherein the heat exchanger is added on the basis of the traditional scheme, so that the heat efficiency of the system can be improved; the first heat exchanger is connected with a heat exchange pipe in the second heat exchanger in a closed loop manner, and a second circulating pump, a water cooling device and a three-way valve are arranged on a pipeline connected between the first heat exchanger and the second heat exchanger, so that the control efficiency and the control precision of temperature can be obviously improved by improving a cooling water cooling device; the electric heater is added at the front end of the electrolytic cell, the water temperature entering the electrolytic cell can be increased by the electric heater, so that the ion exchanger and the electrolytic cell can obtain more suitable water inlet temperature, the operation efficiency of the system is improved, and the temperature reduction and temperature rise of the system can be controlled by the temperature sensor.
Description
Technical Field
The utility model belongs to the technical field of PEM water electrolysis hydrogen manufacturing, especially, relate to a PEM water electrolysis hydrogen manufacturing system with control by temperature change function.
Background
In a PEM water electrolysis hydrogen production system, raw material water is filtered by an ion exchanger and then enters an electrolytic cell for electrolysis to produce hydrogen and oxygen. The temperature of the inlet water can affect the deionization effect of the ion exchanger and has important influence on the operation efficiency and performance attenuation of the electrolytic cell, and the requirement of the deionization exchanger on the water temperature is lower than that of the electrolytic cell, so that the temperature of the electrolytic cell is controlled to be kept in a relatively stable temperature range.
The current solution is as follows: the cooling water exchanges heat with the water flowing out of the electrolytic bath to reduce the temperature, and then the cooling water is cooled by a cooling device to control the water inlet temperature of the ion exchanger and the electrolytic bath.
However, the control efficiency and the control precision of the scheme on the system temperature are low, temperature rise control is not performed, the different requirements of the ion exchanger and the electrolytic cell on the water temperature are neglected, and the cold start time of the system, the operation efficiency of the electrolytic cell and performance attenuation are greatly influenced.
SUMMERY OF THE UTILITY MODEL
Aiming at the defects in the prior art, the utility model aims at providing a PEM water electrolysis hydrogen production system with a temperature control function to solve the problems in the prior art.
In order to achieve the above purpose, the present invention is realized by the following technical solution: a PEM water electrolysis hydrogen production system with a temperature control function comprises a gas-liquid separator, a first circulating pump, a first heat exchanger, an ion exchanger, a second heat exchanger, an electric heater and an electrolytic tank which are sequentially connected, wherein an outlet of the electrolytic tank is connected with the gas-liquid separator, and the gas-liquid separator separates oxygen electrolyzed by the electrolytic tank.
A heat exchanger is added on the basis of the traditional scheme, so that the heat efficiency of the system can be improved; the electric heater is added at the front end of the electrolytic bath, and the electric heater can increase the temperature of water entering the electrolytic bath, so that the ion exchanger and the electrolytic bath can both obtain more proper water inlet temperature, and the operation efficiency of the system is improved.
Furthermore, the first heat exchanger is connected with a heat exchange tube in the second heat exchanger in a closed loop manner, so that cooling water circularly flows between the first heat exchanger and the second heat exchanger, a second circulating pump, a water cooling device and a three-way valve are arranged on a pipeline connected between the first heat exchanger and the second heat exchanger, the second circulating pump is connected with an inlet of the three-way valve, a first outlet of the three-way valve is connected with the water cooling device, and a second outlet of the three-way valve and the water cooling device are both connected with the second heat exchanger.
Furthermore, a temperature sensor is arranged on a pipeline connecting the electric heater and the electrolytic bath, and the temperature sensor is electrically connected with the electric heater and the three-way valve to control the opening and closing of the electric heater and the flow direction of cooling water in the three-way valve.
Further, the water cooling device is a cooling fan.
The pure water is powered by the first circulating pump, cooled by the first heat exchanger, enters the ion exchanger to remove metal ions, enters the second heat exchanger to be cooled again, then enters the electrolytic bath to be electrolyzed after passing through the electric heater, hydrogen and oxygen are generated by electrolysis, the generated oxygen (containing water) enters the gas-liquid separator to be subjected to gas-liquid separator, and the separated liquid is circulated again in the above way.
The electric heater judges whether to be started or not according to temperature data fed back by the temperature sensor;
there is the inner loop cooling water between heat exchanger one and the heat exchanger two, provide power by circulating pump two, judge the flow direction of cooling water in the control three-way valve according to the temperature data of temperature sensor feedback, if the system temperature is too high, the three-way valve turns to first outlet side, opens water cooling plant and further cools down to the cooling water, if the system temperature is crossed lowly, the three-way valve turns to the second outlet side, the inner loop cooling water directly gets into heat exchanger two to this improves the temperature control precision.
Has the advantages that:
(1) The utility model provides a PEM water electrolysis hydrogen production system with temperature control function, which comprises a gas-liquid separator, a first circulating pump, a first heat exchanger, an ion exchanger, a second heat exchanger, an electric heater and an electrolytic tank which are connected in sequence, wherein a heat exchanger is added on the basis of the traditional scheme, so that the heat efficiency of the system can be improved; the electric heater is added at the front end of the electrolytic cell, the water temperature entering the electrolytic cell can be increased by the electric heater, so that the ion exchanger and the electrolytic cell can obtain more suitable water inlet temperature, the operation efficiency of the system is improved, and the temperature reduction and temperature rise of the system can be controlled by the temperature sensor.
(2) The utility model provides a PEM water electrolysis hydrogen manufacturing system with temperature control function, heat exchanger one is connected with the heat exchange tube closed loop in the heat exchanger two, sets up circulating pump two, water cooling device and three-way valve on the pipeline of being connected between heat exchanger one and the heat exchanger two, through improving the cooling water heat sink, can show the control efficiency and the control accuracy who improve the temperature.
The conception, the specific structure and the technical effects produced by the present invention will be further described with reference to the accompanying drawings, so as to fully understand the objects, the features and the effects of the present invention.
Drawings
FIG. 1 is a schematic diagram of a PEM water electrolysis hydrogen production system with temperature control function;
reference numerals:
1. a gas-liquid separator; 2. a first circulating pump; 3. a first heat exchanger; 4. an ion exchanger; 5. a second heat exchanger; 6. a second circulating pump; 7. a three-way valve; 8. a water cooling device; 9. an electric heater; 10. an electrolytic cell; 11. and a temperature sensor.
Detailed Description
The present invention will be further described with reference to the following detailed description. It should be understood that these examples are for illustrative purposes only and are not intended to limit the scope of the present invention. Furthermore, it should be understood that various changes and modifications of the present invention may be made by those skilled in the art after reading the teachings of the present invention, and these equivalents also fall within the scope of the appended claims.
In the drawings, structurally identical elements are represented by like reference numerals, and structurally or functionally similar elements are represented by like reference numerals throughout the several views. The size and thickness of each component shown in the drawings are arbitrarily illustrated, and the present invention is not limited to the size and thickness of each component. The thickness of the components has been exaggerated in some places in the drawings where appropriate for clarity of illustration.
Carrying out the following steps:
as shown in fig. 1, in a preferred embodiment, the present invention provides a PEM water electrolysis hydrogen production system with temperature control function, which comprises a gas-liquid separator 1, a first circulation pump 2, a first heat exchanger 3, an ion exchanger 4, a second heat exchanger 5, an electric heater 9 and an electrolytic tank 10, which are connected in sequence, wherein an outlet of the electrolytic tank 10 is connected with the gas-liquid separator 1, and the gas-liquid separator 1 separates oxygen electrolyzed by the electrolytic tank 10.
The heat exchange tubes in the first heat exchanger 3 and the second heat exchanger 5 are connected in a closed loop mode, cooling water circularly flows between the first heat exchanger 3 and the second heat exchanger 5, a circulating pump II 6, a water cooling device 8 and a three-way valve 7 are arranged on a pipeline connected between the first heat exchanger 3 and the second heat exchanger 5, the circulating pump II 6 is connected with an inlet of the three-way valve 7, a first outlet of the three-way valve 7 is connected with the water cooling device 8, and a second outlet of the three-way valve 7 and the water cooling device 8 are both connected with the second heat exchanger 5.
A temperature sensor 11 is arranged on a pipeline connecting the electric heater 9 and the electrolytic bath 10, the temperature sensor 11 is electrically connected with the electric heater 9 and the three-way valve 7, and the opening and closing of the electric heater 9 and the flow direction of cooling water in the three-way valve 7 are controlled.
The water cooling device 8 is a cooling fan.
The PEM water electrolysis hydrogen production system with the temperature control function has the following working process:
the method comprises the steps that pure water is powered by a first circulating pump 2, cooled by a first heat exchanger 3, enters an ion exchanger 4 to remove metal ions, enters a second heat exchanger 5 to be cooled again, then enters an electrolytic tank 10 through an electric heater 9 to be electrolyzed to generate hydrogen and oxygen, the generated oxygen (containing water) enters a gas-liquid separator 1 to be subjected to gas-liquid separation, and the separated liquid is circulated again in such a way.
Wherein, the electric heater 9 judges whether to start or not according to the temperature data fed back by the temperature sensor 11;
there is the inner loop cooling water between heat exchanger 3 and the heat exchanger two 5, provide power by circulating pump two 6, judge the flow direction of cooling water among the control three-way valve 7 according to the temperature data of 11 feedbacks of temperature sensor, if the system temperature is too high, three-way valve 7 turns to first outlet side, opens water cooling device 8 and further lowers the temperature to the cooling water, if the system temperature is too low, three-way valve 7 turns to the second outlet side, the inner loop cooling water directly gets into heat exchanger two 5 to this improves the temperature control precision.
Finally, it should be noted that: the present invention is not limited to the above embodiments, and all the equivalent structures or equivalent processes that are used in the specification and the attached drawings are transformed or directly or indirectly used in other related technical fields, and all the same principles are included in the protection scope of the present invention.
Claims (4)
1. The PEM water electrolysis hydrogen production system with the temperature control function is characterized by comprising a gas-liquid separator (1), a first circulating pump (2), a first heat exchanger (3), an ion exchanger (4), a second heat exchanger (5), an electric heater (9) and an electrolytic tank (10) which are sequentially connected, wherein an outlet of the electrolytic tank (10) is connected with the gas-liquid separator (1), and the gas-liquid separator (1) separates oxygen electrolyzed by the electrolytic tank (10).
2. The PEM water electrolysis hydrogen production system with the temperature control function according to claim 1, wherein the first heat exchanger (3) is connected with a closed loop of a heat exchange pipe in the second heat exchanger (5) so that cooling water circulates between the first heat exchanger (3) and the second heat exchanger (5), a second circulating pump (6), a water cooling device (8) and a three-way valve (7) are arranged on a pipeline connected between the first heat exchanger (3) and the second heat exchanger (5), the second circulating pump (6) is connected with an inlet of the three-way valve (7), a first outlet of the three-way valve (7) is connected with the water cooling device (8), and a second outlet of the three-way valve (7) and the water cooling device (8) are both connected with the second heat exchanger (5).
3. The PEM water electrolysis hydrogen production system with the temperature control function according to claim 2, characterized in that a temperature sensor (11) is arranged on a pipeline connecting the electric heater (9) and the electrolytic bath (10), the temperature sensor (11) is electrically connected with the electric heater (9) and the three-way valve (7) to control the on-off of the electric heater (9) and the flow direction of cooling water in the three-way valve (7).
4. The PEM water electrolysis hydrogen production system with temperature control function according to claim 2 or 3, characterized in that the water cooling device (8) is a cooling fan.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223328396.1U CN218642839U (en) | 2022-12-12 | 2022-12-12 | PEM water electrolysis hydrogen production system with temperature control function |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223328396.1U CN218642839U (en) | 2022-12-12 | 2022-12-12 | PEM water electrolysis hydrogen production system with temperature control function |
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| Publication Number | Publication Date |
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| CN218642839U true CN218642839U (en) | 2023-03-17 |
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| CN202223328396.1U Active CN218642839U (en) | 2022-12-12 | 2022-12-12 | PEM water electrolysis hydrogen production system with temperature control function |
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