A fuel cell test bench safety control system and its working method

Abstract

The invention discloses a safety control system of a fuel cell experiment table. The safety control system mainly comprises a hydrogen tank, an air bottle, a fuel cell, measuring meters, a data acquisition and processing system and the like. The invention further discloses an operation method of the safety control system. The fuel cell is subjected to performance test repeatedly under the condition that a certain single parameter of an inlet gas of the fuel cell is changed while other parameters are kept unchanged, and accordingly optimal operating parameters of the tested fuel cell are obtained. By the safety control system of the fuel cell experiment table and the operation method of the safety control system, single parameter variation test of the fuel cell can be realized, performance parameters of the fuel cell are obtained safely and stably under the condition of change of a certain variable, and accordingly performances of the tested fuel cell can be known more comprehensively. After test reaction, only water is generated, and pollutants are avoided, so that zero emission of the pollutants is realized.

Description

Technical field [0001] The invention belongs to the technical field of fuel cells, and specifically relates to a safety control system of a fuel cell test bench and a working method thereof. Background technique [0002] The fuel cell is an electrochemical energy converter that directly converts the chemical energy in the fuel into direct current. The fuel cell uses hydrogen and air as fuel, and produces water after the reaction, which is pollution-free and recyclable. It does not go through the heat engine process, so it is not restricted by the Carnot cycle and has high energy conversion efficiency (40%-60%). The fuel cell can be an ideal all-solid-state mechanical structure. The system has high reliability and long life. Since there are no moving parts, the fuel cell is very quiet. Because of the above advantages, fuel cells can be used as a substitute for automobile internal combustion engines, and can also be used in small centralized power supply or distributed power supp...

AI Technical Summary

Problems solved by technology

In the fuel cell stack control system given in the patent (CN201210028345), there is no feedback adjustment for each parameter when it is changed, so that when one of the parameters is changed, other parameters may also change accordingly, which will cause a large error

And the design of the safety device of this patent (CN201210028345) is not reasonable enough, if a problem occurs, it will stop working immediately, which will cause residual reaction gas inside the battery stack, which will cause damage to the experimental equipment, and more seriously, it will affect the safety of the experimental personnel. Major threat, security needs to be improved urgently

Images