CN222867715U - A hydrogen fuel cell cogeneration cooling system and a hydrogen fuel cell - Google Patents
A hydrogen fuel cell cogeneration cooling system and a hydrogen fuel cell Download PDFInfo
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- CN222867715U CN222867715U CN202421443289.XU CN202421443289U CN222867715U CN 222867715 U CN222867715 U CN 222867715U CN 202421443289 U CN202421443289 U CN 202421443289U CN 222867715 U CN222867715 U CN 222867715U
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- fuel cell
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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
- Y02E60/50—Fuel cells
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Abstract
The utility model relates to a heat and power combined supply cooling system of a hydrogen fuel cell and the hydrogen fuel cell, comprising a heat exchanger, a first water pump, a second water pump and a three-way valve, wherein a refrigerant inlet of the heat exchanger is connected with a refrigerant pipeline, a refrigerant outlet is connected with an input end of the hydrogen fuel cell through a water inlet pipeline, a heating medium inlet is connected with an output end of the hydrogen fuel cell through a water return pipeline, a heating medium outlet is connected with a heating medium pipeline, the first water pump is arranged on the refrigerant pipeline, the second water pump is arranged on the water return pipeline, the three-way valve is arranged on the water return pipeline, an input port and an output port of the three-way valve form a passage with the water return pipeline, and the other output port is connected with the water inlet pipeline through the water return pipeline. The cooling system distributes the cooling liquid, and reduces the flow of the cooling liquid flowing back to the heat exchanger on the premise of ensuring that the recovered heat is unchanged, so that the internal flow resistance of the heat exchanger is also reduced, the consumption power of the water pump is reduced, and the external output efficiency of the whole cooling system is improved.
Description
Technical Field
The utility model relates to the technical field of fuel cells, in particular to a hydrogen fuel cell cogeneration cooling system and a hydrogen fuel cell.
Background
The hydrogen fuel cell is a power generation device with high efficiency and no pollution in emission, electricity is generated by electrochemical reaction of hydrogen and air, the generated final product is water, the hydrogen fuel cell is environment-friendly and no pollution, and the power generation technology is widely popularized and implemented worldwide.
The hydrogen fuel cell generates a large amount of heat energy in the reaction process, and the hydrogen fuel cell can maintain a stable and efficient operation state only when the hydrogen fuel cell needs to keep a proper and stable temperature in the hydrogen fuel cell, so that the hydrogen fuel cell needs to be cooled in the operation process.
The problem in the process is that the larger the flow resistance of a series circuit is, the larger the flow resistance is, the higher the lift of a front-end water pump can be caused, the power consumption of a BOP (biaxially oriented polypropylene) in the hydrogen fuel cell system is improved, and the overall output efficiency is reduced.
Disclosure of utility model
Therefore, the technical problem to be solved by the utility model is to overcome the defect that the heat recovery is carried out in the mode of adopting the cooling circuit series plate type heat exchanger in the cogeneration system for the hydrogen fuel cell in the prior art, and the problem in the process is that the larger the flow resistance of the series circuit is positively related to the flow, the larger the flow resistance is, the higher the lift of a front-end water pump can be caused, the power consumption of the BOP inside the hydrogen fuel cell system is improved, and the integral external output efficiency is reduced.
In order to solve the technical problems, the utility model provides a cogeneration cooling system of a hydrogen fuel cell, wherein the hydrogen fuel cell comprises an input end and an output end for circulating cooling liquid, and comprises,
The heat exchanger comprises a refrigerant inlet, a refrigerant outlet, a heating medium inlet and a heating medium outlet, wherein the refrigerant inlet is connected with a refrigerant pipeline, and the refrigerant outlet is connected with the input end of the hydrogen fuel cell through a water inlet pipeline;
the first water pump is arranged on the refrigerant pipeline;
The second water pump is arranged on the water return pipeline;
The three-way valve is arranged on the water return pipeline and comprises an input port and two output ports, the input port and the output port of the three-way valve form a passage with the water return pipeline, and the other output port of the three-way valve is connected with the water inlet pipeline through the return pipeline.
In one embodiment of the utility model, the position where the return line is connected to the water inlet line is a junction, and a radiator is provided on a section of the water inlet line between the junction and the input of the hydrogen fuel cell.
In one embodiment of the utility model, the heat sink is a convective heat sink.
In one embodiment of the utility model, the water inlet line is provided with a temperature sensor in a section between the junction and the radiator.
In one embodiment of the present utility model, the air conditioner further comprises a controller, wherein the controller is respectively connected with the first water pump, the second water pump, the three-way valve, the radiator and the temperature sensor.
In one embodiment of the present utility model, one end of the refrigerant pipeline is connected to the refrigerant inlet, and the other end of the refrigerant pipeline is connected to a water supply device.
In one embodiment of the utility model, one end of the heat medium pipeline is connected with the heat medium outlet, and the other end is connected with a water circulation system.
In one embodiment of the utility model, the three-way valve is an electronically controlled three-way valve.
In one embodiment of the utility model, the heat exchanger is a plate heat exchanger.
A hydrogen fuel cell comprising a cogeneration cooling system of any one of the preceding claims.
Compared with the prior art, the technical scheme of the utility model has the following advantages:
The utility model discloses a combined heat and power cooling system of a hydrogen fuel cell and the hydrogen fuel cell, which comprises a heat exchanger, a first water pump, a second water pump and a three-way valve, wherein the heat exchanger comprises a refrigerant inlet, a refrigerant outlet, a heating medium inlet and a heating medium outlet, the refrigerant inlet is connected with a refrigerant pipeline, the refrigerant outlet is connected with an input end of the hydrogen fuel cell through a water inlet pipeline, the heating medium inlet is connected with an output end of the hydrogen fuel cell through a water return pipeline, the heating medium outlet is connected with a heating medium pipeline, the first water pump is arranged on the refrigerant pipeline, the second water pump is arranged on the water return pipeline, the three-way valve comprises an input port and two output ports, the input port and the output port of the three-way valve form a passage with the water return pipeline, and the other output port of the three-way valve is connected with the water inlet pipeline through the water return pipeline. The cooling system distributes the cooling liquid output by the hydrogen fuel cell, so that a part of hot cooling liquid is distributed to the return pipeline and flows into the water inlet pipeline to be mixed with the cooling liquid at low temperature and then is input into the hydrogen fuel cell system, and on the premise of ensuring that the recovered heat is unchanged, the flow of the cooling liquid flowing back to the heat exchanger is reduced, the internal flow resistance of the heat exchanger is also reduced, the consumption power of the water pump is reduced, and the external output efficiency of the whole cooling system is improved. The whole cogeneration system has simple structure, convenient installation and maintenance and is suitable for practical use.
Drawings
In order that the utility model may be more readily understood, a more particular description of the utility model will be rendered by reference to specific embodiments thereof that are illustrated in the appended drawings, in which
Fig. 1 is a schematic view showing the overall structure of a cogeneration cooling system for a hydrogen fuel cell according to a preferred embodiment of the utility model.
The reference numerals of the specification are 1, a heat exchanger, 11, a refrigerant inlet, 12, a refrigerant outlet, 13, a heating medium inlet, 14, a heating medium outlet, 15, a refrigerant pipeline, 16, a water inlet pipeline, 17, a water return pipeline, 18, a heating medium pipeline, 19, a return pipeline, 2, a first water pump, 3, a second water pump, 4, a three-way valve, 5, a junction point, 6, a radiator, 7, a temperature sensor and A, a hydrogen fuel cell.
Detailed Description
The present utility model will be further described with reference to the accompanying drawings and specific examples, which are not intended to be limiting, so that those skilled in the art will better understand the utility model and practice it.
Example 1
Referring to fig. 1, a cogeneration cooling system for a hydrogen fuel cell of the utility model, the hydrogen fuel cell including an input and an output for circulating a cooling liquid, comprises,
The heat exchanger 1 comprises a refrigerant inlet 11, a refrigerant outlet 12, a heating medium inlet 13 and a heating medium outlet 14, wherein the refrigerant inlet 11 is connected with a refrigerant pipeline 15, the refrigerant outlet 12 is connected with the input end of the hydrogen fuel cell A through a water inlet pipeline 16, the heating medium inlet 13 is connected with the output end of the hydrogen fuel cell through a water return pipeline 17, and the heating medium outlet 14 is connected with a heating medium pipeline 18;
The first water pump 2 is arranged on the refrigerant pipeline 15;
The second water pump 3 is arranged on the water return pipeline 17;
The three-way valve 4, the three-way valve 4 is set up on the return water pipeline 17, the three-way valve 4 includes an input port and two output ports, the input port and an output port of the three-way valve 4 form the way with the return water pipeline 17, and another output port of the three-way valve 4 is connected with the water inlet pipeline 16 through the return line 19.
Specifically, the refrigerant pipeline 15, the refrigerant passage of the heat exchanger 1, the water inlet pipeline 16, the hydrogen fuel cell, the water return pipeline 17, the heating medium passage of the heat exchanger 1 and the heating medium pipeline 18 form a first loop, the water return pipeline 17 and the water inlet pipeline 16 are connected with a return pipeline 19 through a three-way valve 4, and a second loop is formed among the water inlet pipeline 16, the hydrogen fuel cell, the water return pipeline 17 and the return pipeline 19.
In the first circuit, the low-temperature coolant supplied from the coolant line 15 exchanges heat with the hot coolant supplied from the hydrogen fuel cell in the heat exchanger 1, so that the coolant can enter the hydrogen fuel cell at an optimum temperature, and the operation effect of the hydrogen fuel cell is ensured.
After the second loop is added, the hot cooling liquid which absorbs the heat generated by the reactor in the fuel cell enters the water return pipeline 17 through the output end of the hot cooling liquid, and when the hot cooling liquid enters the water return pipeline 17 and passes through the three-way valve 4, part of the cooling liquid continuously flows back to the heating medium pipeline 18 through the heat exchanger 1, and the other part of the cooling liquid is distributed to the return pipeline 19 and is mixed with the cooling liquid in the water inlet pipeline 16 and then is input into the hydrogen fuel cell system.
It is conceivable that the cooling liquid outputted from the hydrogen fuel cell is distributed at the three-way valve 4, and that the flow rate of the cooling liquid flowing back to the heat exchanger 1 is reduced on the premise of ensuring that the recovered heat is not changed, the internal flow resistance of the heat exchanger is also reduced, so that the power consumption of the water pump is reduced, and the output efficiency of the whole cooling system to the outside is improved.
Further, the position where the return line 19 is connected to the water intake line 16 is the junction 5, and the radiator 6 is provided in a section of the water intake line 16 between the junction 5 and the input of the hydrogen fuel cell.
Further, the radiator 6 is a convection radiator. Specifically, when the temperature sensor 7 detects that the temperature of the flowing cooling liquid is higher than the preset temperature, the radiator 6 operates to cool the cooling liquid, so that the cooling liquid can enter the hydrogen fuel cell at the most appropriate temperature, and the operation effect of the hydrogen fuel cell is ensured.
Further, a temperature sensor 7 is provided on a section of the water intake pipe 16 between the junction 5 and the radiator 6. Preferably, the temperature sensors 7 can also be arranged at the positions of the four interfaces of the heat exchanger 1 to monitor the temperature of the cooling liquid.
Further, the intelligent water heater also comprises a controller which is respectively connected with the first water pump 2, the second water pump 3, the three-way valve 4, the radiator 6 and the temperature sensor 7. The controller can control the cooling system in its entirety.
Further, one end of the refrigerant pipeline 15 is connected with the refrigerant inlet 11, and the other end of the refrigerant pipeline 15 is connected with a water supply device.
Further, one end of the heat medium pipe 18 is connected to the heat medium outlet 14, and the other end is connected to the water circulation system.
Further, the three-way valve 4 is an electric control three-way valve.
Further, the heat exchanger 1 is a plate heat exchanger.
Example two
The utility model also discloses a hydrogen fuel cell, which comprises the hydrogen fuel cell cogeneration cooling system as in the first embodiment.
It is apparent that the above examples are given by way of illustration only and are not limiting of the embodiments. Other variations and modifications of the present utility model will be apparent to those of ordinary skill in the art in light of the foregoing description. It is not necessary here nor is it exhaustive of all embodiments. While still being apparent from variations or modifications that may be made by those skilled in the art are within the scope of the utility model.
Claims (10)
1. A combined heat and power cooling system for hydrogen fuel cell is composed of an input end for circulating cooling liquid and an output end,
The heat exchanger comprises a refrigerant inlet, a refrigerant outlet, a heating medium inlet and a heating medium outlet, wherein the refrigerant inlet is connected with a refrigerant pipeline, and the refrigerant outlet is connected with the input end of the hydrogen fuel cell through a water inlet pipeline;
the first water pump is arranged on the refrigerant pipeline;
The second water pump is arranged on the water return pipeline;
The three-way valve is arranged on the water return pipeline and comprises an input port and two output ports, the input port and the output port of the three-way valve form a passage with the water return pipeline, and the other output port of the three-way valve is connected with the water inlet pipeline through the return pipeline.
2. The cogeneration cooling system of a hydrogen fuel cell according to claim 1, wherein said return line is connected to said water intake line at a junction, and a radiator is provided in a section of said water intake line between said junction and an input of the hydrogen fuel cell.
3. The cogeneration cooling system of a hydrogen fuel cell of claim 2, wherein said heat sink is a convective heat sink.
4. The cogeneration cooling system of a hydrogen fuel cell of claim 2, wherein a temperature sensor is disposed on a section of said water inlet conduit that is located between said junction and said heat sink.
5. The cogeneration cooling system of a hydrogen fuel cell of claim 4, further comprising a controller that is connected to said first water pump, said second water pump, said three-way valve, said heat sink, and said temperature sensor, respectively.
6. The cogeneration cooling system of a hydrogen fuel cell of claim 1, wherein one end of the refrigerant line is connected to the refrigerant inlet and the other end of the refrigerant line is connected to a water supply device.
7. The cogeneration cooling system of a hydrogen fuel cell of claim 6, wherein one end of the heating medium pipeline is connected with the heating medium outlet and the other end is connected with a water circulation system.
8. The cogeneration cooling system of a hydrogen fuel cell of claim 1, wherein said three-way valve is an electronically controlled three-way valve.
9. The cogeneration cooling system of a hydrogen fuel cell of claim 1, wherein said heat exchanger is a plate heat exchanger.
10. A hydrogen fuel cell comprising a cogeneration cooling system of a hydrogen fuel cell according to any one of claims 1-9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202421443289.XU CN222867715U (en) | 2024-06-24 | 2024-06-24 | A hydrogen fuel cell cogeneration cooling system and a hydrogen fuel cell |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN202421443289.XU CN222867715U (en) | 2024-06-24 | 2024-06-24 | A hydrogen fuel cell cogeneration cooling system and a hydrogen fuel cell |
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| CN222867715U true CN222867715U (en) | 2025-05-13 |
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| CN202421443289.XU Active CN222867715U (en) | 2024-06-24 | 2024-06-24 | A hydrogen fuel cell cogeneration cooling system and a hydrogen fuel cell |
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| CN (1) | CN222867715U (en) |
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- 2024-06-24 CN CN202421443289.XU patent/CN222867715U/en active Active
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