CN220253285U - Thermal management system of fuel cell - Google Patents
Thermal management system of fuel cell Download PDFInfo
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- CN220253285U CN220253285U CN202321480068.5U CN202321480068U CN220253285U CN 220253285 U CN220253285 U CN 220253285U CN 202321480068 U CN202321480068 U CN 202321480068U CN 220253285 U CN220253285 U CN 220253285U
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- Prior art keywords
- pipeline
- module
- cooling liquid
- thermal management
- management system
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- 239000000446 fuel Substances 0.000 title claims abstract description 27
- 239000000110 cooling liquid Substances 0.000 claims abstract description 62
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 claims abstract description 35
- 239000001257 hydrogen Substances 0.000 claims abstract description 34
- 229910052739 hydrogen Inorganic materials 0.000 claims abstract description 34
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 24
- 239000002826 coolant Substances 0.000 claims description 23
- 239000002245 particle Substances 0.000 claims description 5
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 3
- 239000001301 oxygen Substances 0.000 claims description 3
- 229910052760 oxygen Inorganic materials 0.000 claims description 3
- 230000001502 supplementing effect Effects 0.000 claims description 2
- 239000007789 gas Substances 0.000 abstract description 3
- 239000007788 liquid Substances 0.000 description 15
- 238000010438 heat treatment Methods 0.000 description 8
- 230000002159 abnormal effect Effects 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 150000002431 hydrogen Chemical class 0.000 description 1
- 230000008676 import Effects 0.000 description 1
- 239000012528 membrane Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000013021 overheating Methods 0.000 description 1
Landscapes
- Fuel Cell (AREA)
Abstract
The utility model relates to the technical field of fuel cells, and particularly discloses a thermal management system of a fuel cell, which comprises a galvanic pile, a cooling liquid module, a hydrogen module and an air module, wherein the three modules are connected with the galvanic pile, the cooling liquid module circularly supplies cooling liquid to the galvanic pile, the hydrogen module and the air module supply cooling liquid to perform heat exchange treatment on hydrogen and air entering the galvanic pile, and meanwhile, a bypass pipeline is arranged in a PTC heater in the cooling liquid module to control the flow of the cooling liquid flowing through the PTC heater by utilizing an electromagnetic valve; the whole thermal management system not only can realize thermal management on the engine during working, but also can avoid the fault of the PTC heater, and can control the temperature of the gas which enters the reactor to participate in the reaction, and the whole system has flexible structure.
Description
Technical Field
The utility model relates to the technical field of fuel cells, in particular to a thermal management system of a fuel cell.
Background
The working principle of the fuel cell engine is that the hydrogen and the oxygen react electrochemically in the electric pile to release electric energy, a large amount of heat energy is generated while the electric pile reacts, and the overheating in the electric pile affects the proton exchange membrane to reduce the reaction efficiency, so that the thermal management system of the fuel cell engine has a vital effect on the stable operation of the electric pile and each part of the engine. Particularly for a high-power fuel cell engine, the heat generated by each part of the engine is more than that generated by a low-power engine, so that higher requirements are also put forward on the arrangement mode of the thermal management system, the performance of the electric pile is considered, and meanwhile, the operation and the tolerance condition of the parts are considered to avoid the engine from being failed.
In the prior art, most of fuel cell engine heat management systems are water pumps, thermostats and PTC heaters are connected to a pile through pipelines to dissipate heat inside the pile, and branch out to be connected to a hydrogen side pipeline to heat hydrogen so as to ensure that the hydrogen participating in the reaction is kept in a proper temperature range, thereby realizing the heat management of the engine. But this solution has the following problems:
(1) In a high-power fuel cell engine, the problem of large internal flow resistance exists in the PTC heater, so that the PTC heater is heated abnormally, and the engine is stopped in abnormal faults;
(2) The hydrogen gas inlet side of the existing fuel cell engine cannot accurately control the hydrogen gas temperature.
Therefore, it is necessary to design a thermal management system for a fuel cell, which is capable of dissipating heat from the inside of a stack, preventing abnormal heating of parts, and controlling the concentration of hydrogen fed into the stack.
Disclosure of Invention
In order to overcome the defects in the prior art, the utility model provides a thermal management system of a fuel cell engine, which can effectively dissipate heat in a galvanic pile and simultaneously can protect other parts to control the concentration of hydrogen in the pile.
The utility model adopts the following technical scheme:
the utility model provides a fuel cell's thermal management system, includes pile and coolant liquid module, the coolant liquid module sets up to the circulation line, is connected with the pile, the coolant liquid module includes first pipeline, first coolant liquid goes out heap mouth, water pump, thermostat, radiator, particulate filter and coolant liquid income heap mouth have been set gradually on the first pipeline, first pipeline still includes the PTC heater, PTC heater and radiator parallelly connected setting are between thermostat and particulate filter, PTC heater is other to be provided with the bypass pipeline, is provided with first solenoid valve on the bypass pipeline.
Further, the coolant module includes the second pipeline, the second pipeline has set gradually second coolant liquid and has gone out heap mouth, compensating water tank's export setting is in the play heap direction of first pipeline, compensating water tank is used for carrying out the replenishment setting of coolant liquid at the entrance of water pump to the coolant module.
Through setting up first pipeline and second pipeline, realize the self-service circulation of whole coolant liquid module, set up the bypass line in PTC heater department, utilize the coolant liquid flow of first solenoid valve control flow through PTC heater, avoid PTC heater to appear heating unusual phenomenon.
Further, the thermal management system further comprises a hydrogen module, the hydrogen module is connected with the electric pile to provide hydrogen for electric pushing, a pipeline of the hydrogen module is sequentially provided with a hydrogen inlet, a heat exchanger, a first temperature sensor and a hydrogen inlet, the heat exchanger exchanges heat by utilizing cooling liquid of the cooling liquid module, an inlet pipeline of the heat exchanger is arranged in a pile entering direction of the first pipeline, an outlet pipeline of the heat exchanger is arranged in a pile exiting direction of the first pipeline, and a second electromagnetic valve is further arranged on the inlet pipeline of the heat exchanger and used for controlling flow of cooling liquid participating in heat exchange.
Further, the thermal management system further comprises an air module, the air module is connected with the electric pile to provide oxygen for the electric pile, an air inlet, an intercooler and an air inlet are sequentially formed in a pipeline of the air module, the intercooler performs heat exchange by utilizing cooling liquid of the cooling liquid module, an inlet pipeline of the intercooler is arranged in a pile entering direction of the first pipeline, and an outlet pipeline of the intercooler is arranged in a pile exiting direction of the first pipeline.
Further, the first pipeline is further provided with a low-point liquid outlet, and the low-point liquid outlet is arranged between the thermostat and the radiator and used for exhausting cooling liquid in the cooling liquid module.
Preferably, a second temperature sensor is arranged at the first cooling liquid outlet of the first pipeline, and a temperature-pressure sensor is arranged at the cooling liquid inlet of the first pipeline and used for detecting the temperature and pressure of the cooling liquid entering the reactor and the temperature of the cooling liquid exiting the reactor.
Preferably, a conductivity meter is further disposed on the first pipe, and the conductivity meter is disposed between the radiator and the particulate filter.
The utility model has at least the following beneficial effects:
1. according to the thermal management system of the fuel cell, provided by the utility model, the cooling liquid module is arranged, and the flow of the cooling liquid is controlled by arranging the electromagnetic valve at the PTC heater, so that the thermal management of the engine can be realized, the situation that the PTC heater is abnormally heated can be avoided, the stability of parts of the system is ensured, and the failure rate of the engine is reduced;
2. the heat management system of the fuel cell fully utilizes the cooling liquid of the cooling liquid module to carry out heat treatment on the in-pile air and the in-pile hydrogen, thereby ensuring that the temperature of the gas participating in the reaction is controlled at a proper temperature;
3. the heat management system of the fuel cell provided by the utility model has the advantages of flexible structure, high practicability, self-service circulation of the cooling liquid module and simplicity in operation.
Drawings
Fig. 1 is a schematic structural diagram of a thermal management system of a fuel cell according to the present utility model.
Description of the drawings: 1. a galvanic pile; 2. a water pump; 3. a thermostat; 4. a low-point liquid outlet; 5. a heat sink; 6. a conductivity meter; 7. a particulate filter; 8. a PTC heater; 9. a first electromagnetic valve; 10. a compensating water tank; 11. a second temperature sensor; 12. a temperature and pressure sensor; 13. a hydrogen inlet; 14. a heat exchanger; 15. a first temperature sensor; 16. a second electromagnetic valve; 17. an air inlet; 18. an intercooler.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the embodiments of the present utility model more apparent, the technical solutions of the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model, and it is apparent that the described embodiments are some embodiments of the present utility model, but not all embodiments of the present utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
Example 1
As shown in fig. 1, the present utility model discloses a thermal management system of a fuel cell, which includes a stack 1, a coolant module, a hydrogen module, and an air module, all of which are connected to the stack 1,
the cooling liquid module comprises a first pipeline and a second pipeline, wherein a first cooling liquid outlet, a second temperature sensor 10, a water pump 2, a thermostat 3, a low-point liquid outlet 4, a radiator 5, a conductivity meter 6, a particle filter 7, a temperature pressure sensor 12 and a cooling liquid inlet are sequentially arranged on the first pipeline, a PTC heater 8 is also arranged on the first pipeline, the PTC heater 8 and the radiator 5 are arranged between the thermostat 3 and the particle filter 7 in parallel, a bypass pipeline is also arranged at the PTC heater 8, a first electromagnetic valve 9 is arranged on the bypass pipeline,
the second pipeline is sequentially provided with a second cooling liquid outlet and a compensating water tank 10, the outlet of the compensating water tank 10 is arranged in the outlet direction of the first pipeline, and the compensating water tank 10 is used for supplementing cooling liquid to the cooling liquid module and is arranged at the inlet of the water pump 2.
The hydrogen module comprises a hydrogen inlet 13, a heat exchanger 14 and a first temperature sensor 15 which are sequentially arranged, the hydrogen module exchanges heat by utilizing cooling liquid of the cooling liquid module, an inlet pipeline of the heat exchanger 14 is arranged in the stacking direction of the first pipeline, an outlet pipeline of the heat exchanger 14 is arranged in the stacking direction of the first pipeline, namely, at the inlet of the water pump 2, the hydrogen module is further provided with a second electromagnetic valve 16, and the second electromagnetic valve 16 is arranged on an inlet pipeline of the heat exchanger and is used for controlling flow of the cooling liquid participating in heat exchange.
The pipeline of air module has set gradually air inlet 17, intercooler 18 and air income heap mouth, and the intercooler 18 utilizes the coolant liquid of coolant liquid module to carry out the heat exchange, and the import pipeline setting of intercooler 18 is in the income heap direction of first pipeline, and the export pipeline setting of intercooler 18 is in the play heap direction of first pipeline, namely water pump 2 entrance.
During actual operation, the cooling liquid firstly enters the cooling liquid module through the compensating water tank, namely the water pump entering the first pipeline, the flow direction of the cooling liquid is controlled through the thermostat, when the cooling liquid flows into the PTC heater, the situation of abnormal heating of the PTC heater can be avoided by adjusting the first electromagnetic valve to control the flow rate of the cooling liquid, the cooling liquid after heating treatment enters the galvanic pile after being filtered by the particle filter, the cooling liquid which is discharged out of the galvanic pile can flow out of the galvanic pile through the first cooling liquid outlet and the second cooling liquid outlet, the cooling liquid flowing out of the first cooling liquid outlet flows into the water pump to participate in the circulation of the cooling liquid, meanwhile, the water pump which flows out of the second cooling liquid outlet flows into the compensating water tank and then enters the first pipeline is used in the circulation of the cooling liquid, so that the whole cooling liquid module can perform autonomous working circulation operation,
meanwhile, the cooling liquid of the cooling liquid module can also participate in the heat treatment of the hydrogen module and the air module, and specifically comprises the following components: hydrogen enters the electric pile after entering the heat exchanger from the hydrogen inlet for heat treatment, a pipeline is arranged at the position of the first pipeline in the pile entering direction and communicated with the inlet of the heat exchanger, a pipeline is arranged at the position of the first pipeline in the pile exiting direction and communicated with the outlet of the heat exchanger, heat exchange by using cooling liquid is completed, a second electromagnetic valve is arranged at the position of the inlet pipeline of the heat exchanger to control the flow of the cooling liquid and further control the temperature of the hydrogen after heat exchange,
air enters the electric pile after entering the intercooler for heat treatment from the air inlet, a pipeline is further arranged at the pile entering direction of the first pipeline and communicated to the inlet of the intercooler, a pipeline is further arranged at the pile exiting direction of the first pipeline and communicated to the outlet of the intercooler, and heat exchange is performed by using cooling liquid.
Therefore, the heat management system of the fuel cell disclosed by the utility model is provided with the cooling liquid module, the PTC heater in the cooling liquid module adjusts the flow of the cooling liquid through the electromagnetic valve of the bypass pipeline, so that the condition of the PTC heater fault is avoided, and meanwhile, the cooling liquid of the cooling liquid module is fully utilized to perform heat exchange treatment on the hydrogen and the air which enter the stack, so that the temperature of the gas entering the stack can be effectively controlled.
The foregoing description is only illustrative of the present utility model and is not intended to limit the scope of the utility model, and all equivalent structures or equivalent processes or direct or indirect application in other related technical fields are included in the scope of the present utility model.
Claims (8)
1. A thermal management system for a fuel cell, comprising: the cooling liquid module is arranged to be a circulating pipeline and connected with the electric pile, the cooling liquid module comprises a first pipeline, a first cooling liquid outlet, a water pump, a thermostat, a radiator, a particle filter and a cooling liquid inlet are sequentially arranged on the first pipeline, the first pipeline further comprises a PTC heater, the PTC heater and the radiator are arranged between the thermostat and the particle filter in parallel, a bypass pipeline is arranged beside the PTC heater, and a first electromagnetic valve is arranged on the bypass pipeline.
2. The thermal management system of claim 1, further comprising a hydrogen module, wherein the hydrogen module is connected to the electric stack to provide hydrogen for electric pushing, a hydrogen inlet, a heat exchanger, a first temperature sensor and a hydrogen inlet are sequentially disposed on a pipeline of the hydrogen module, the heat exchanger exchanges heat by using a cooling liquid of the cooling liquid module, an inlet pipeline of the heat exchanger is disposed in a stacking direction of the first pipeline, and an outlet pipeline of the heat exchanger is disposed in a stacking direction of the first pipeline.
3. The thermal management system of a fuel cell according to claim 2, wherein the hydrogen module is further provided with a second solenoid valve provided on an inlet line of the heat exchanger for controlling a flow rate of the coolant involved in heat exchange.
4. The thermal management system of a fuel cell according to claim 3, further comprising an air module connected to the electric pile for supplying oxygen to the electric pile, wherein the air module has a pipeline provided with an air inlet, an intercooler and an air inlet in order, the intercooler exchanges heat with the coolant of the coolant module, the inlet pipeline of the intercooler is arranged in the direction of the first pipeline, and the outlet pipeline of the intercooler is arranged in the direction of the first pipeline.
5. The thermal management system of claim 4, wherein the coolant module further comprises a second pipeline, the second pipeline is sequentially provided with a second coolant outlet and a compensating water tank, the outlet of the compensating water tank is arranged in the direction of the first pipeline, and the compensating water tank is used for supplementing the coolant module with the coolant and is arranged at the inlet of the water pump.
6. The thermal management system of a fuel cell of claim 1, wherein a second temperature sensor is disposed at a first coolant outlet of the first conduit and a temperature and pressure sensor is disposed at a coolant inlet of the first conduit.
7. The thermal management system of a fuel cell of claim 1, wherein the first conduit is further provided with a conductivity meter disposed between the radiator and the particulate filter.
8. The thermal management system of a fuel cell according to claim 5, wherein a low-point drain is further provided on the first pipe, the low-point drain being provided between the thermostat and the radiator.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321480068.5U CN220253285U (en) | 2023-06-12 | 2023-06-12 | Thermal management system of fuel cell |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321480068.5U CN220253285U (en) | 2023-06-12 | 2023-06-12 | Thermal management system of fuel cell |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220253285U true CN220253285U (en) | 2023-12-26 |
Family
ID=89227056
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321480068.5U Active CN220253285U (en) | 2023-06-12 | 2023-06-12 | Thermal management system of fuel cell |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220253285U (en) |
-
2023
- 2023-06-12 CN CN202321480068.5U patent/CN220253285U/en active Active
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