CN217035689U - Auxiliary temperature control device for liquid hydrogen vaporization of fuel cell - Google Patents
Auxiliary temperature control device for liquid hydrogen vaporization of fuel cell Download PDFInfo
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- CN217035689U CN217035689U CN202220893407.1U CN202220893407U CN217035689U CN 217035689 U CN217035689 U CN 217035689U CN 202220893407 U CN202220893407 U CN 202220893407U CN 217035689 U CN217035689 U CN 217035689U
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Abstract
The utility model discloses a liquid hydrogen vaporization auxiliary temperature control device for a fuel cell, which comprises a liquid hydrogen tank, an air temperature type heat exchanger, a first temperature sensor, an air filter, an air compressor, a first three-way valve, an intercooler, a second three-way valve, a silencer, a water distribution piece, an air tail exhaust pipeline, a flow guide cover and a galvanic pile, wherein the liquid hydrogen tank is connected with the air temperature type heat exchanger through the air filter; the output of the liquid hydrogen tank is connected with an air-temperature heat exchanger, and the output of the air-temperature heat exchanger is connected with a galvanic pile; a first temperature sensor is arranged between the air-temperature heat exchanger and the electric pile; the output end of the air compressor is connected with a first three-way valve, one outlet of the first three-way valve is connected with an intercooler, the other outlet of the first three-way valve is connected with the input port of the water diversion piece, and the output port of the intercooler is connected with the electric pile; the air output port of the pile is connected with a silencer, the silencer is connected with a second three-way valve, one output port of the second three-way valve is connected with a water diversion piece, and the other output port of the second three-way valve is connected with external air; the output port of the water diversion part is connected with the air guide sleeve; the nozzle of the air guide sleeve is aligned with the air temperature type heat exchanger. The utility model improves the performance of the fuel cell system.
Description
Technical Field
The utility model belongs to the technical field of fuel cells, and particularly relates to a liquid hydrogen vaporization auxiliary temperature control device of a fuel cell.
Background
At present, with the wide application of electric vehicles, various battery technologies are widely developed, and the battery technologies are improved, the fuel cell can directly convert chemical energy into electric energy, so that the fuel cell is widely applied, with the development of large-scale high-power fuel cell systems, the fuel cell systems are already used for heavy trucks, and when the fuel cell systems are used for heavy trucks, the capacity of a common hydrogen storage tank cannot meet the requirement, so that the whole vehicle needs to be matched with liquid hydrogen for meeting the hydrogen consumption. The air temperature type heat exchange gas in a general liquid hydrogen vaporization system exchanges heat in a natural air convection mode, so that the surface of a heat exchange plate is frosted, the heat exchange efficiency is reduced, and the heat exchange efficiency is lower at a low temperature. And the air temperature at the outlet of the air compressor is higher, so that the possibility of further optimizing the fuel cell system exists.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the technical problem of the prior art and provides an auxiliary temperature control device for liquid hydrogen vaporization of a fuel cell.
In order to achieve the technical purpose, the technical scheme adopted by the utility model is as follows:
a fuel cell liquid hydrogen vaporization auxiliary temperature control device comprises a liquid hydrogen tank, an air temperature type heat exchanger, a first temperature sensor, an air filter, an air compressor, a first three-way valve, an intercooler, a second three-way valve, a silencer, a water distribution piece, an air tail discharge pipeline, a flow guide cover and a galvanic pile;
the output of the liquid hydrogen tank is connected with an air-temperature heat exchanger, and the output of the air-temperature heat exchanger is connected with a galvanic pile; a first temperature sensor is arranged between the air temperature type heat exchanger and the galvanic pile;
the air compressor sucks air through an air filter, the output end of the air compressor is connected with a first three-way valve, one outlet of the first three-way valve is connected with an intercooler, the other outlet of the first three-way valve is connected with an input port of the water diversion piece, and an output port of the intercooler is connected with the electric pile;
the air output port of the pile is connected with a silencer, the silencer is connected with a second three-way valve, one output port of the second three-way valve is connected with a water diversion piece, and the other output port of the second three-way valve is connected with outside air;
the output port of the water diversion piece is connected with the air guide sleeve;
the nozzle of the air guide sleeve is aligned with the air-temperature heat exchanger.
Preferably, the first three-way valve and the second three-way valve are controlled by a fuel cell system controller.
Preferably, the first and second three-way valve openings are controlled by a first temperature sensor value.
The utility model has the following beneficial effects:
after the auxiliary temperature control device for vaporizing liquid hydrogen of the fuel cell is adopted, the air-temperature heat exchanger of the hydrogen circulation system is heated by high-temperature gas of the air circulation system through the comprehensive design of the air circulation system and the hydrogen circulation system, so that the overall temperature of the fuel cell system is reduced, the temperature rise speed of hydrogen is higher, and the performance of the fuel cell system is improved.
Drawings
Fig. 1 is a schematic diagram of a liquid hydrogen vaporization auxiliary temperature control device for a fuel cell according to the present invention.
Detailed Description
Embodiments of the present invention are described in further detail below with reference to the accompanying drawings.
Referring to fig. 1, a liquid hydrogen vaporization auxiliary temperature control device for a fuel cell includes a liquid hydrogen tank, an air-temperature heat exchanger, a first temperature sensor (T1), an air filter, an air compressor, a first three-way valve (three-way valve 1), an intercooler, a second three-way valve (three-way valve 2), a silencer, a water diversion piece, an air exhaust pipe, a draft hood, and a stack;
the output of the liquid hydrogen tank is connected with an air-temperature heat exchanger, and the output of the air-temperature heat exchanger is connected with a galvanic pile; a first temperature sensor is arranged between the air-temperature heat exchanger and the electric pile;
the air compressor sucks air through an air filter, the output end of the air compressor is connected with a first three-way valve, one outlet of the first three-way valve is connected with an intercooler, the other outlet of the first three-way valve is connected with the input port of the water diversion piece, and the output port of the intercooler is connected with the electric pile;
the air output port of the galvanic pile is connected with a silencer, the silencer is connected with a second three-way valve, one output port of the second three-way valve is connected with a water diversion piece, and the other output port of the second three-way valve is connected with external air;
the output port of the water diversion part is connected with the air guide sleeve;
the nozzle of the air guide sleeve is aligned with the air temperature type heat exchanger.
In a specific implementation, the first three-way valve and the second three-way valve are controlled by a fuel cell system controller.
In specific implementation, the opening degrees of the first three-way valve and the second three-way valve are controlled by a first temperature sensor value.
The working process is as follows:
when the fuel cell system runs, the required air blowing-in amount is calculated in real time according to the value of a first temperature sensor T1, when the temperature rise requirement of the air-temperature heat exchanger can be met only by using the air at the air outlet of the electric pile, a first three-way valve and a second three-way valve are controlled to firstly send the air into the electric pile and then blow the air to the air-temperature heat exchanger, when the temperature rise requirement of the air-temperature heat exchanger cannot be met only by using the air at the air outlet of the electric pile, the first three-way valve is controlled to simultaneously open a passage flowing to the electric pile and a passage flowing to a water diversion piece, the rotating speed of an air compressor is increased, and the temperature rise requirement of the air-temperature heat exchanger is met.
According to the auxiliary temperature control device for liquid hydrogen vaporization of the fuel cell, the air-temperature type heat exchanger of the hydrogen circulation system is heated by high-temperature gas of the air circulation system through the comprehensive design of the air circulation system and the hydrogen circulation system, so that the overall temperature of the fuel cell system is reduced, the temperature rise speed of hydrogen is higher, and the performance of the fuel cell system is improved.
Although the utility model has been described in detail with respect to the general description and the specific embodiments, it will be apparent to those skilled in the art that modifications and improvements may be made based on the utility model. Accordingly, such modifications and improvements are intended to be within the scope of the utility model as claimed.
Claims (3)
1. A fuel cell liquid hydrogen vaporization auxiliary temperature control device is characterized in that: the temperature control device comprises a liquid hydrogen tank, an air temperature type heat exchanger, a first temperature sensor, an air filter, an air compressor, a first three-way valve, an intercooler, a second three-way valve, a silencer, a water distribution piece, an air tail exhaust pipeline, a flow guide cover and a galvanic pile;
the output of the liquid hydrogen tank is connected with an air-temperature heat exchanger, and the output of the air-temperature heat exchanger is connected with a galvanic pile; a first temperature sensor is arranged between the air-temperature heat exchanger and the electric pile;
the air compressor sucks air through an air filter, the output end of the air compressor is connected with a first three-way valve, one outlet of the first three-way valve is connected with an intercooler, the other outlet of the first three-way valve is connected with an input port of the water diversion piece, and an output port of the intercooler is connected with the electric pile;
the air output port of the pile is connected with a silencer, the silencer is connected with a second three-way valve, one output port of the second three-way valve is connected with a water diversion piece, and the other output port of the second three-way valve is connected with outside air;
the output port of the water diversion part is connected with the air guide sleeve;
the nozzle of the air guide sleeve is aligned with the air-temperature heat exchanger.
2. The fuel cell liquid hydrogen vaporization auxiliary temperature control device according to claim 1, characterized in that: the first three-way valve and the second three-way valve are controlled by a fuel cell system controller.
3. The fuel cell liquid hydrogen vaporization auxiliary temperature control device according to claim 1, characterized in that: the opening degree of the first three-way valve and the opening degree of the second three-way valve are controlled by a first temperature sensor value.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220893407.1U CN217035689U (en) | 2022-04-18 | 2022-04-18 | Auxiliary temperature control device for liquid hydrogen vaporization of fuel cell |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220893407.1U CN217035689U (en) | 2022-04-18 | 2022-04-18 | Auxiliary temperature control device for liquid hydrogen vaporization of fuel cell |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217035689U true CN217035689U (en) | 2022-07-22 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
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| CN202220893407.1U Active CN217035689U (en) | 2022-04-18 | 2022-04-18 | Auxiliary temperature control device for liquid hydrogen vaporization of fuel cell |
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| Country | Link |
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| CN (1) | CN217035689U (en) |
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2022
- 2022-04-18 CN CN202220893407.1U patent/CN217035689U/en active Active
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