Special test device and method for hydrogen fuel cell system fuel cell stack offline

A fuel cell system and testing equipment technology, applied in the direction of measuring electricity, measuring devices, measuring electrical variables, etc., to achieve high uniformity, improve detection speed, and small system volume

Pending Publication Date: 2020-11-10
谭安平
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Existing manufacturers that can provide products generally do not involve offline testing

Method used

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  • Special test device and method for hydrogen fuel cell system fuel cell stack offline
  • Special test device and method for hydrogen fuel cell system fuel cell stack offline
  • Special test device and method for hydrogen fuel cell system fuel cell stack offline

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] Such as figure 1 As shown, the platform mainly includes air supply and exhaust auxiliary system, main heat dissipation system, auxiliary heat dissipation system, high voltage power supply, low voltage power supply, electronic load, PXI control system and host computer, etc. A hydrogen fuel cell system stack off-line special test equipment, including air supply and exhaust auxiliary system, heat dissipation system, power supply, electronic load, PXI control system and host computer, the air supply and exhaust auxiliary system consists of humidity sensor, humidity Control device, filter, pressure reducer, hydrogen mass flow meter, air guide pipe and mechanical safety valve, the humidity control device is externally connected to the air guide pipe through a three-way valve, the humidity control device is composed of air inlet, condensation device, evaporating device, and air outlet, the air inlet is connected to the air guide pipe through a three-way valve, the air inlet i...

Embodiment 2

[0047] The composition of the test bench of the present invention mainly includes six subsystems: first, the gas supply, which mainly solves the gas supply of hydrogen, nitrogen and air, flow control, and flow, temperature, pressure and other measurement processing. The second subsystem is temperature control, because after the chemical reaction of hydrogen and oxygen in the fuel cell system of the object under test, a large amount of heat will be generated, and it is necessary to take the heat outside through such a form of heat exchange. The third is that during the reaction process, a large amount of water, a small amount of unreacted hydrogen and excess air will also be produced, which are further separated through such a tail row subsystem, and then discharged to the outside. The fourth is the electrical subsystem, which mainly solves the control of power electronics, high and low voltage DC power supply, signal collection, data forwarding, fault alarm and processing, and ...

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Abstract

The invention provides a special test device and method for hydrogen fuel cell system fuel cell stack offline, and the device comprises a gas supply and exhaust auxiliary system, a heat dissipation system, a power supply, an electronic load, a PXI control system, and an upper computer. The air supply and exhaust auxiliary system is composed of a humidity sensor, a humidity control device, a filter, a pressure reducer, a hydrogen mass flow meter, an air guide pipe and a mechanical safety valve, the humidity control device is externally connected to the air guide pipe through a three-way valve,and the humidity control device is composed of an air inlet, a condensation device, an evaporation device and an air outlet; the air inlet is connected with the air guide pipe through the three-way valve and is connected with air inlet ends of the condensing device and the evaporating device through an electric control three-way valve; and the air outlet ends of the condensing device and the evaporating device are connected with the air guide pipe and the electronic load, and the PXI control system is externally connected with the exhaust auxiliary system and the heat dissipation system for control. According to the invention, the gas supply, flow, temperature and pressure control and hydrogen humidity adjustment of an offline fuel cell stack are realized, so that a cell is kept in an optimal working state.

Description

technical field [0001] The invention belongs to the field of fuel cell testing equipment, and in particular relates to a special testing equipment and testing method for stack off-line of a hydrogen fuel cell system. Background technique [0002] The composition of a typical test bench mainly includes six subsystems: the first is the gas supply, which mainly solves the gas supply of hydrogen, nitrogen and air, flow control, and measurement processing of flow, temperature, and pressure. The second subsystem is temperature control, because after the chemical reaction of hydrogen and oxygen in the fuel cell system of our test object, a lot of heat will be generated, and it is necessary to take the heat outside through such a form of heat exchange. The third is that during the reaction process, a large amount of water, a small amount of unreacted hydrogen and excess air will also be produced, which are further separated through such a tail row subsystem, and then discharged to t...

Claims

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Application Information

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IPC IPC(8): G01R31/378G01R31/382
CPCG01R31/378G01R31/382
Inventor 谭安平
Owner 谭安平
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