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Fuel cell leak detection method and detection system

A fuel cell, leak detection technology, applied in fuel cells, power system fuel cells, circuits, etc., can solve the problems of increased cost and expensive hydrogen leak detection equipment.

Active Publication Date: 2021-07-20
WEICHAI POWER CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] The purpose of the invention is to at least solve the problem that the hydrogen leakage detection equipment is expensive and increases the cost

Method used

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  • Fuel cell leak detection method and detection system
  • Fuel cell leak detection method and detection system
  • Fuel cell leak detection method and detection system

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Embodiment Construction

[0062] Exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. Although exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure may be embodied in various forms and should not be limited by the embodiments set forth herein. Rather, these embodiments are provided for more thorough understanding of the present disclosure and to fully convey the scope of the present disclosure to those skilled in the art.

[0063] It should be understood that the terminology used herein is for the purpose of describing particular example embodiments only and is not intended to be limiting. As used herein, the singular forms "a", "an" and "the" may also be meant to include the plural forms unless the context clearly dictates otherwise. The terms "comprising", "comprising", "containing" and "having" are inclusive and thus indicate the presence of stated...

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Abstract

The invention belongs to the technical field of fuel cells, and in particular relates to a fuel cell leakage detection method and a detection system. The fuel cell leakage detection method includes controlling the fuel cell to perform detection initialization, controlling the delivery of air and hydrogen to the fuel cell, and detecting the leakage in the fuel cell. Gas pressure, according to the gas pressure meeting the preset conditions, it is determined that there is no leakage. According to the fuel cell leakage detection method of the embodiment of the invention, the air and hydrogen are controlled to be sent to the fuel cell to avoid damage caused by the excessive pressure difference between the two sides of the fuel cell. Whether the gas pressure in the fuel cell after delivering the air and hydrogen satisfies a preset condition, so as to detect whether the fuel cell leaks.

Description

technical field [0001] The invention belongs to the technical field of fuel cells, and in particular relates to a fuel cell leakage detection method and detection system. Background technique [0002] This section provides background information related to the present disclosure only and is not necessarily prior art. [0003] Hydrogen fuel cell vehicles are highly efficient and can achieve zero emissions. Compared with pure electric vehicles, the time to replenish energy is shorter and the cruising range is longer. It is one of the directions for future vehicle development. However, the leakage of hydrogen will lead to a decrease in the performance of the fuel cell. At the same time, hydrogen is a combustible gas, and releasing it into the air will bring great safety hazards. Therefore, it is necessary to detect whether the hydrogen pipeline is leaking to improve the safety of the fuel cell. [0004] At present, hydrogen leakage equipment is mostly used for detection, which...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01M8/0438G01M3/26G01M3/28
CPCG01M3/26G01M3/2815G01M3/2853H01M8/0438H01M8/04388H01M8/04395H01M2250/20Y02E60/50
Inventor 仝玉华王金平张善星王毓源
Owner WEICHAI POWER CO LTD
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