Full-automatic airtightness detection device and method for fuel cell stack

A fuel cell stack, a fully automated technology, applied in the direction of measuring the increase and decrease rate of the fluid, using the liquid/vacuum degree to measure the liquid tightness, etc., can solve the problem of low standardization, no leak detection device, operability cumbersome and other problems, to achieve the effect of high detection accuracy

Pending Publication Date: 2019-11-22
WUHAN GROVE HYDROGEN AUTOMOBILE CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the industry does not have a certain standard for air tightness testing, and there is no special leak detection device
At present, most enterprises use a self-built simple test platform to connect the gas source and the stack for testing. The standardization is not high and the operation is cumbersome.

Method used

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  • Full-automatic airtightness detection device and method for fuel cell stack
  • Full-automatic airtightness detection device and method for fuel cell stack

Examples

Experimental program
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Effect test

Embodiment 1

[0026] Such as figure 1 As shown, a fully automatic device for detecting the airtightness of a fuel cell stack of the present invention includes a gas storage bottle 1, a main air intake pipe 2, and three branch inlets that are all connected to the gas outlet end of the main air intake pipe 2. Air pipe 3, total outlet pipe 4, three outflow pipes 5, pressure detector 6 and gas flow meter 7 connected with the inlet end of total outlet pipe 4; , the three branch air pipes 3 communicate with the hydrogen chamber 8 of the fuel cell stack, the water chamber 9 and the air inlet 11 of the air chamber 10 respectively, and the three branch air pipes 5 respectively communicate with the hydrogen chamber 8, water chamber 8 and water chamber of the fuel cell stack. The air outlet 12 of the chamber 9 and the air chamber 10 is connected; the main air intake pipe 2, the three branch air pipes 3 and the three outflow air pipes 5 are all provided with a valve 13 to open or close it, and the pres...

Embodiment 2

[0042] The difference between this embodiment and Embodiment 1 is that all the valves 13 involved in this embodiment can be electromagnetic valves in order to realize the function of automatic air tightness detection.

[0043] Such as figure 2 As shown, this embodiment may further include a controller 16, and all the solenoid valves 13, the pressure detector 6 and the gas flow meter 7 are electrically connected to the controller 16.

[0044] The controller 16 of this embodiment may include a pressure control module 161, a valve control module 162, a time control module 163, a sequence control module 164 and a flow detection module 165; The pressure control module 161 and the flow detection module 165 are electrically connected with the time control module 163; the valve control module 162 controls the opening and closing of the valve 13 by electrically connecting with all solenoid valves, and the pressure detector 6 will detect the The pressure value is transmitted to the pr...

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Abstract

The invention discloses a full-automatic airtightness detection device and method for a fuel cell stack. The device comprises a gas storage bottle, a main gas inlet pipe, three branch gas inlet pipescommunicated with the gas outlet end of the main gas inlet pipe, a main gas outlet pipe, three branch gas outlet pipes communicated with the gas inlet end of the main gas outlet pipe, a pressure detector and a gas flow meter; the gas inlet end of the main gas inlet pipe is communicated with the gas storage bottle; the three branch gas inlet pipes are communicated with gas inlets of a hydrogen cavity, a water cavity and an air cavity of the fuel cell stack respectively; the three gas outlet pipes are communicated with gas outlets of the hydrogen cavity, the water cavity and the air cavity of the fuel cell stack respectively; the main gas inlet pipe, the three branch gas inlet pipes and the three branch gas outlet pipes are provided with valves respectively, the pressure detector is installed on the main gas inlet pipe and located in a pipeline section between the valve of the main gas inlet pipe and the branch gas inlet pipes, and the gas flow meter is installed on the main gas outlet pipe. Thus, the airtightness of the fuel cell stack can be detected fully automatically, the labor cost is reduced, and the airtightness can be quantified.

Description

technical field [0001] The invention relates to the technical field of fuel cells, in particular to a device and method for fully automatic detection of the airtightness of fuel cell stacks. Background technique [0002] With the development of the automotive hydrogen fuel cell industry, more and more companies independently develop stacks. During the production process of stacks, the airtightness of stacks must be tested. However, the industry does not have a certain standard for air tightness testing, and there is no special leak detection device. At present, most enterprises use a self-built simple test platform to connect the gas source and the stack for testing, which is not highly standardized and cumbersome to operate. Contents of the invention [0003] The object of the present invention is to propose a fully automatic device and method for quantifying the value of air tightness and high detection accuracy for detecting the air tightness of fuel cell stacks in vie...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01M3/26G01M3/32
CPCG01M3/26G01M3/32
Inventor 黄易元郝义国刘超
Owner WUHAN GROVE HYDROGEN AUTOMOBILE CO LTD
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