Gas control device and fuel cell test system

Abstract

The invention relates to a gas control device and a fuel cell test system. Each test gas is provided with two gas inlet pipes. A heater and a refrigerator are arranged at a same-temperature tank to adjust a temperature of a heat-conducting medium in the same-temperature tank, and the heat-conducting medium performs sufficient heat exchange with the test gas in a coil pipe so that control of a temperature of the test gas is realized. After the test gas is output from the coil pipe, one path serves as a humidifying pipeline to be provided with a humidifier, the other path serves as a drying pipeline to be provided with a first dryer, one path is dried and one path is wetted for adjustment, and humidity is easier to control. And the two paths are gathered after carrying out humidifying and drying treatment respectively, and are sent to a gas inlet of the tested fuel cell through a gas outlet pipe so as to carry out a test. By adopting the technical scheme of the invention, the test gas isindirectly heated and refrigerated through the heat-conducting medium, temperature adjustment efficiency is high, safety is high, a volume of original equipment can be greatly compressed, and the performance is better under the condition of the same function.

Description

technical field [0001] The invention relates to the technical field of gas control, in particular to a gas control device and a fuel cell test system. Background technique [0002] A fuel cell is a power generating device that directly converts the chemical energy present in fuel and oxidant into electrical energy. In order to ensure the safe operation of the fuel cell, the fuel cell needs to be tested before leaving the factory. The test gas needs to be introduced during the test, and the temperature, humidity, pressure and flow of the test gas need to be controlled to ensure that the test can be carried out normally. [0003] Traditional fuel cell detection devices mostly use the method of winding heating tape in the pipeline, or passing the gas into a container with a heating device to heat it and then output it. These two heating methods are inefficient and have certain risks. In addition, currently only Natural cooling in the form of cooling, the cooling efficiency is...

AI Technical Summary

Problems solved by technology

[0004] In view of this, the object of the present invention is to provide a gas control device and a fuel cell test system to overcome the current problems of low temperature control efficiency, large temperature control equipment, redundant structure, and inconvenient use

Images