Leakage detection tool for fuel cell stack
A fuel cell stack and tooling technology, which is applied to fuel cells, circuits, electrical components, etc., can solve the problems of test items that cannot be applied with high accuracy requirements of test results, data that cannot accurately read gas leakage, equipment volume and Due to the large area and other problems, the effect of shortening the test time, shortening the installation method and improving the efficiency is achieved.
Pending Publication Date: 2022-08-05
SHANGHAI SHENLI TECH CO LTD
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Problems solved by technology
[0007] This solution can determine air tightness and external leakage points, but the flowmeter used is a rotameter, which cannot accurately read the data of gas leakage during use, so it cannot be applied to the accuracy requirements of test results such as blow-by tests Higher test items; at the same time, the equipment volume and floor space are larger
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Embodiment 1
[0038] refer to figure 1 It shows that this embodiment provides a leak -detection worker for fuel cell piles, including the gas pressure control module connected in turn, the gas flow control allocation module, and the tested fuel cell pile module. The gas pressure control module includes the first first Gas conveying tube, the first gas conveyor tube is provided with pressure decompression valve components, air pressure control switch components, and digital pressure table 14; gas pressure control module test Gas is provided by external gas sources, mainly inert gas nitrogen or sorbent;
[0039] Gas flow control allocation modules include the second gas conveying tube. One end of the second gas conveying tube connects one end of the first gas conveying tube, and the other end is divided into the first air flow control branch and the second air flow control branch. Control branches have the first air flow control switch component, the second air flow control branch has a flow mete...
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The invention relates to a leak detection tool for a fuel cell stack, and the leak detection tool comprises a gas pressure control module, a gas flow control distribution module and a detected fuel cell stack module which are connected in sequence, a pressure reducing valve assembly, an air pressure control switch assembly and a digital pressure gauge are arranged on the first gas conveying pipe; the gas flow control distribution module comprises a second gas conveying pipe, one end of the second gas conveying pipe is connected with one end of the first gas conveying pipe, the other end of the second gas conveying pipe is divided into a first gas flow control branch and a second gas flow control branch, and the first gas flow control branch is provided with a first gas flow control switch assembly. The second airflow control branch is provided with a flow meter and a second airflow control switch assembly. Compared with the prior art, the fuel cell stack airtightness detection device can perform comprehensive detection on the overall and internal airtightness of the fuel cell stack, and can greatly improve the efficiency of the airtightness leak detection test of the fuel cell stack.
Description
Technical field [0001] The present invention involves the field of fuel cell pile detection technology, especially a leakage worker for fuel cell piles. Background technique [0002] As a new type of environmentally friendly, efficient power device, hydrogen fuel cells use hydrogen energy as fuel to directly convert chemical energy to electrical energy. Therefore, it is not limited by the CONO cycle. Therefore, it has the advantages of high energy conversion efficiency and strong power. At present It is gradually becoming a key area for hydrogen energy utilization. Although hydrogen fuel cells have many advantages, hydrogen fuel cell electric piles still face many problems and challenges during actual operation, such as complex vehicle operating conditions and management and control of electric heap systems. Among them, the management and control of the electric heap system mainly include the safety of hydrogen storage, the gas tightness of the electric heap, and the safety of th...
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IPC IPC(8): H01M8/04313H01M8/0438H01M8/04664
CPCH01M8/04313H01M8/0438H01M8/04679Y02E60/50
Inventor 陈溢李鹏燕谭锋杜晓莉杨绍军甘全全戴威
Owner SHANGHAI SHENLI TECH CO LTD