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High and low temperature cycle test system for proton exchange membrane fuel cell

A high-low temperature cycle, proton exchange membrane technology, applied in the direction of applying stable tension/pressure to test the strength of materials, measuring electricity, analyzing materials, etc., can solve the problems of inability to achieve high and low temperature fast switching, low impact frequency, etc., to achieve configuration Variety of schemes, durability and simple structure

Pending Publication Date: 2021-08-10
TONGJI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the research focus of this application is to provide a high and low temperature cycle test system suitable for both new energy vehicle batteries and motors. The system heats and cools the circulating fluid by setting a heating branch and a cooling branch to achieve accurate temperature control. , however, the system cannot achieve fast switching between high and low temperatures, and the impact frequency is low

Method used

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  • High and low temperature cycle test system for proton exchange membrane fuel cell
  • High and low temperature cycle test system for proton exchange membrane fuel cell
  • High and low temperature cycle test system for proton exchange membrane fuel cell

Examples

Experimental program
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Embodiment 1

[0033] Such as figure 1 As shown, this embodiment provides a proton exchange membrane fuel cell high and low temperature cycle test system, which includes a low temperature cycle impact structure and a high temperature cycle impact structure that are independent of each other;

[0034] The low-temperature cycle impact structure includes a cold source 1, a cold source working channel, and a cold source circulation channel. The cold source 1 communicates with the object to be tested through the cold source working channel to form a low-temperature cycle impact circuit. The cold source 1 is also connected with the cold source circulation channel. Form a low temperature insulation regulation loop;

[0035] The high-temperature cycle impact structure includes a heat source 13, a heat source working channel and a heat source circulation channel. The heat source 13 communicates with the test piece through the heat source working channel to form a high-temperature cycle impact circuit...

Embodiment 2

[0049] Such as image 3 As shown, this embodiment provides a proton exchange membrane fuel cell high and low temperature cycle test system, which is roughly the same as that of embodiment 1.

[0050] The difference is that in Embodiment 1, the cold source 1 contains a drive pump capable of driving the flow of circulating fluid. The heat source 13 contains a drive pump capable of driving the flow of circulating fluid. In Embodiment 2, the low-temperature cycle impact structure includes a drive pump 201, and the drive pump 201 is installed on the inlet connection channel 141 of the low-temperature cycle impact structure; the high-temperature cycle impact structure includes a drive pump 202, and the drive pump 202 is installed in the low-temperature cycle impact structure The inlet of the impact structure is connected to the channel 142 .

[0051] When the cold source 1 is working, the first solenoid valve 2 is closed, the second solenoid valve 4 and the third solenoid valve 5 ...

Embodiment 3

[0054] Such as Figure 4 As shown, this embodiment provides a proton exchange membrane fuel cell high and low temperature cycle test system, which is roughly the same as that of embodiment 1.

[0055] The difference is that the cold medium inlet and the cold medium outlet of the cold source working channel and the cold source circulation channel are respectively connected to the cold source 1 through independent inlet communication pipes and outlet communication pipes, and the heat source working channel and the heat source circulation channel are connected to the cold source 1 through independent inlet and outlet communication pipes. The heat medium inlet and the heat medium outlet are respectively connected to the heat source 13 through independent inlet communication pipes and outlet communication pipes. Specifically, such as image 3 As shown, the cold medium inlet of the cold source working channel is connected to the cold source 1 through the inlet connecting pipe 143, ...

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Abstract

The invention relates to a high and low temperature cycle test system for a proton exchange membrane fuel cell. The system comprises a low temperature cycle impact structure and a high temperature cycle impact structure which are mutually independent, the low-temperature circulation impact structure comprises a cold source, a cold source working channel and a cold source self-circulation channel, the cold source is communicated with the to-be-tested piece through the cold source working channel to form a low-temperature circulation impact loop, and the cold source is further communicated with the cold source self-circulation channel to form a low-temperature heat preservation adjusting loop; the high-temperature circulation impact structure comprises a heat source, a heat source working channel and a heat source self-circulation channel, the heat source is communicated with the to-be-tested piece through the heat source working channel to form a high-temperature circulation impact loop, and the heat source is further communicated with the heat source self-circulation channel to form a high-temperature heat preservation adjusting loop; and the cold source, the cold source working channel, the cold source self-circulation channel, the heat source, the heat source working channel and the heat source self-circulation channel are all connected to the controller. Compared with the prior art, heating and refrigeration switching can be rapidly carried out, and rapid evaluation of the durability of an electric pile material and key components is achieved.

Description

technical field [0001] The invention relates to the technical field of testing proton exchange membrane fuel cells, in particular to a high and low temperature cycle testing system for proton exchange membrane fuel cells. Background technique [0002] Proton exchange membrane fuel cell (PEMFC) has the advantages of high efficiency, low pollution and low noise, and has a wide range of applications. Temperature is an important factor affecting the performance and life of PEMFC. The stack is exposed to high temperature for a long time during normal operation, sub-zero temperature during shutdown in winter, and rapid and large-scale temperature changes. PEMFC is prone to cold-thermal fatigue, mechanical fatigue, and creep and other strength failures, which in turn lead to damage. Before PEMFC is used, it is of great significance to conduct high and low temperature thermal shock durability tests on its key materials and components to improve the reliability and service life of t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N17/00G01N3/18G01R31/378G01R31/392
CPCG01N3/18G01N17/00G01N2203/0226G01R31/378G01R31/392
Inventor 明平文杨帆李冰周伟殷骏杨代军谭永乐张存满
Owner TONGJI UNIV
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