CN215496809U - Fuel cell cooling system - Google Patents
Fuel cell cooling system Download PDFInfo
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- CN215496809U CN215496809U CN202120627956.XU CN202120627956U CN215496809U CN 215496809 U CN215496809 U CN 215496809U CN 202120627956 U CN202120627956 U CN 202120627956U CN 215496809 U CN215496809 U CN 215496809U
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- fuel cell
- cell stack
- inlet
- control valve
- cooling system
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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 discloses a fuel cell cooling system, comprising: the fuel cell stack, the water pump, the radiator, the PTC heater, the electric control valve, the filter and the water tank; the outlet of the fuel cell stack is connected with the inlet of the water pump, the outlet of the water pump is respectively connected with the PTC heater and one end of the radiator, the other end of the PTC heater is connected with the first port of the electric control valve, the other end of the radiator is connected with the second port of the electric control valve, and the third port of the electric control valve is connected with the inlet of the fuel cell stack; set up a N gas vent, a N gas vent with the gas vent of radiator is connected respectively the entry of water tank, a N gas vent sets up the solenoid valve, the exit linkage of water tank the entry of water pump. The utility model increases a plurality of exhaust ports, improves the exhaust efficiency, shortens the water adding time, cuts off the exhaust port loop by closing the electromagnetic valve after the exhaust is finished, reduces the shunt of the exhaust loop, and the electromagnetic valve is arranged in the exhaust pipeline, so the system can not be frozen at low temperature, and has simple structure and high cooling efficiency.
Description
Technical Field
The utility model relates to the technical field of fuel cell temperature control, in particular to a fuel cell cooling system.
Background
Fuel cells require a suitable temperature for reaction, and excessive temperature or insufficient temperature can cause efficiency reduction, so that reasonable thermal management of the fuel cells is important. On one hand, a large amount of heat is generated in the process of converting chemical energy into electric energy by the fuel cell, and if the heat is not dissipated in time, the life and performance of the stack are adversely affected. On the other hand, the fuel cell system is low in temperature (ambient temperature) immediately after starting, and the system efficiency is low; particularly, when the starting temperature is lower than the freezing point, water generated by reaction in the galvanic pile can be frozen, so that the galvanic pile is permanently damaged; therefore, the fuel cell needs to be rapidly warmed up in the start-up stage.
In a fuel cell system, a cooling system often has the defect that an exhaust insufficient water path is not operated normally after water is added, so that the temperature of a galvanic pile is overhigh; at present, exhaust gas is usually arranged at the inlet end of the radiator, but the exhaust gas is not smooth enough, and the cooling time is longer.
SUMMERY OF THE UTILITY MODEL
The utility model provides a fuel cell cooling system, and aims to solve the technical problems that a traditional cooling system is not smooth in exhaust and long in cooling time.
In order to achieve the above object, the present invention provides a fuel cell cooling system including: the fuel cell stack, the water pump, the radiator, the PTC heater, the electric control valve, the filter and the water tank;
the outlet of the fuel cell stack is connected with the inlet of the water pump, the outlet of the water pump is respectively connected with one end of the PTC heater and one end of the radiator, the other end of the PTC heater is connected with the first port of the electric control valve, the other end of the radiator is connected with the second port of the electric control valve, and the third port of the electric control valve is connected with the inlet of the fuel cell stack;
the fuel cell cooling system is characterized in that N (N >1) exhaust ports are arranged at the highest point (the highest point of a physical position) of the fuel cell cooling system, the N exhaust ports are respectively connected with an inlet of the water tank through pipelines and exhaust ports of the radiator through pipelines, electromagnetic valves are arranged on the pipelines of the N exhaust ports, and an outlet of the water tank is connected with an inlet of the water pump.
Preferably, the inlet of the fuel cell stack is provided with a stack temperature and pressure sensor for measuring the temperature of the coolant flowing into the fuel cell stack.
Preferably, the outlet of the fuel cell stack is provided with a stack temperature and pressure sensor, and the stack temperature and pressure sensor is used for measuring the temperature of the coolant flowing out of the fuel cell stack.
Preferably, the fuel cell cooling system further includes: and the inlet of the filter is connected with the third port of the electric control valve, and the outlet of the filter is connected with the inlet of the fuel cell stack.
Preferably, the electric control valve is a three-way electric control valve and is used for controlling the connection of the PTC heater and the radiator.
Preferably, an intercooler for cooling air entering the fuel cell stack is provided between the outlet of the fuel cell stack and the inlet of the filter.
The utility model has the beneficial effects that: the utility model provides a fuel cell cooling system has increased many places gas vent, improves exhaust efficiency, shortens the time of adding water, and after the exhaust is ended, can block the gas vent return circuit through closing the solenoid valve on the exhaust pipe to reduce the reposition of redundant personnel of exhaust return circuit, the solenoid valve is installed in the exhaust pipe, can not freeze under the low temperature, and system simple structure, cooling efficiency is high, and the controllability is strong.
Drawings
The utility model will be further described with reference to the accompanying drawings and examples, in which:
FIG. 1 is a block diagram of a fuel cell cooling system according to the present invention;
in the figure: the method comprises the following steps of 1-a radiator, 2-a PTC heater, 3-an electric control valve, 4-a water pump, 5-a fuel cell stack, 6-a water tank, 7-a stack entering temperature and pressure sensor, 8-a stack exiting temperature sensor, 9-a filter, 10-1 a first electromagnetic valve, 10-2 a second electromagnetic valve and 10-3 a third electromagnetic valve.
Detailed Description
For a more clear understanding of the technical features, objects and effects of the present invention, embodiments of the present invention will now be described in detail with reference to the accompanying drawings.
Referring to fig. 1, fig. 1 is a structural diagram of a fuel cell cooling system according to the present invention;
the present embodiment provides a fuel cell cooling system, including: a fuel cell stack 5, a water pump 4, a radiator 1, a PTC heater 2, an electric control valve 3, a filter 9 and a water tank 6;
the outlet of the fuel cell stack 5 is connected with the inlet of the water pump 4, the outlet of the water pump 4 is respectively connected with one end of the PTC heater 2 and one end of the radiator 1, the other end of the PTC heater 2 is connected with the first port of the electric control valve 3, the other end of the radiator 1 is connected with the second port of the electric control valve 3, and the third port of the electric control valve 3 is connected with the inlet of the fuel cell stack 5;
in a specific embodiment, 3 electromagnetic valves are arranged at the highest point of the fuel cell cooling system, and are respectively a first electromagnetic valve 10-1, a second electromagnetic valve 10-2, and a third electromagnetic valve 10-3, the 3 electromagnetic valves and an exhaust port of the radiator 1 are respectively connected to an inlet of the water tank 6 through a pipeline, and an outlet of the water tank 6 is connected to an inlet of the water pump 4.
In the fuel cell cooling process, open 3 solenoid valves and realize many places exhaust, shorten the time of adding water, reduce the temperature of fuel cell galvanic pile 5 fast, when the exhaust is ended, can cut off the gas vent return circuit through closing 3 solenoid valves to reduce the reposition of redundant personnel of gas vent return circuit.
As an alternative embodiment, the inlet of the fuel cell stack 5 is provided with a stack temperature and pressure sensor 7, and the stack temperature and pressure sensor 7 is used for measuring the temperature of the coolant flowing into the fuel cell stack 5.
As an alternative embodiment, the outlet of the fuel cell stack 5 is provided with a stack temperature and pressure sensor 8, and the stack temperature and pressure sensor 8 is used for measuring the temperature of the coolant flowing out of the fuel cell stack 5.
As an alternative embodiment, the fuel cell cooling system further comprises: and the inlet of the filter 9 is connected with the third port of the electric control valve 3, and the outlet of the filter 9 is connected with the inlet of the fuel cell stack 5.
As an optional implementation scheme, the electronic control valve 3 is a three-way electronic control valve, and controls the on-off of each port according to the temperature measurement values of the stack-entering temperature and pressure sensor 7 and the stack-exiting temperature and pressure sensor 8, so as to control the connection between the PTC heater 2 and the radiator 1, thereby realizing the heat dissipation or heating of the fuel cell stack 5.
As an alternative embodiment, between the outlet of the fuel cell stack 5 and the inlet of the filter 9, an intercooler 11 is provided, the intercooler 11 being used to cool the air entering the fuel cell stack 5.
The utility model provides a fuel cell cooling system, which is provided with a plurality of exhaust ports, improves the exhaust efficiency, shortens the water adding time, can cut off an exhaust port loop by closing an electromagnetic valve after the exhaust is finished, thereby reducing the shunt of the exhaust loop, and the electromagnetic valve is arranged in the exhaust pipeline, can not be frozen at low temperature, and has the advantages of simple system structure, high cooling efficiency and strong controllability.
While the present invention has been described with reference to the embodiments shown in the drawings, the present invention is not limited to the embodiments, which are illustrative and not restrictive, and it will be apparent to those skilled in the art that various changes and modifications can be made therein without departing from the spirit and scope of the utility model as defined in the appended claims.
Claims (6)
1. A fuel cell cooling system, characterized by comprising: the fuel cell stack, the water pump, the radiator, the PTC heater, the electric control valve, the filter and the water tank;
the outlet of the fuel cell stack is connected with the inlet of the water pump, the outlet of the water pump is respectively connected with one end of the PTC heater and one end of the radiator, the other end of the PTC heater is connected with the first port of the electric control valve, the other end of the radiator is connected with the second port of the electric control valve, and the third port of the electric control valve is connected with the inlet of the fuel cell stack;
the fuel cell cooling system is provided with N exhaust ports, the N exhaust ports and the exhaust ports of the radiator are respectively connected with the inlet of the water tank through pipelines, electromagnetic valves are arranged on the pipelines of the N exhaust ports, and the outlet of the water tank is connected with the inlet of the water pump.
2. The cooling system of claim 1, wherein the inlet of the fuel cell stack is provided with a stack temperature and pressure sensor for measuring the temperature of the coolant flowing into the fuel cell stack.
3. The cooling system of claim 1, wherein the outlet of the fuel cell stack is provided with a stack temperature and pressure sensor for measuring the temperature of the coolant flowing out of the fuel cell stack.
4. A fuel cell cooling system according to claim 1, further comprising: and the inlet of the filter is connected with the third port of the electric control valve, and the outlet of the filter is connected with the inlet of the fuel cell stack.
5. The fuel cell cooling system of claim 1, wherein the electrical valve is a three-way electrical valve for controlling the connection of the PTC heater and the heat sink.
6. A fuel cell cooling system as set forth in claim 1, wherein an intercooler is provided between the fuel cell stack outlet and the third port of the electrically controlled valve for cooling air entering the fuel cell stack.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120627956.XU CN215496809U (en) | 2021-03-26 | 2021-03-26 | Fuel cell cooling system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120627956.XU CN215496809U (en) | 2021-03-26 | 2021-03-26 | Fuel cell cooling system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215496809U true CN215496809U (en) | 2022-01-11 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120627956.XU Active CN215496809U (en) | 2021-03-26 | 2021-03-26 | Fuel cell cooling system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215496809U (en) |
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2021
- 2021-03-26 CN CN202120627956.XU patent/CN215496809U/en active Active
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