煤矿安全2019，Vol.50Issue(4)：104-107,4.DOI:10.13347/j.cnki.mkaq.2019.04.025
GC4000气相色谱仪进气端微量气体控制器
Development of Micro-gas Controller for Inlet End of GC4000 Gas Chromatograph
摘要
Abstract
A micro-gas controller for GC4000 gas chromatograph was developed. The device is equipped with an electromagnetic valve at the inlet end. Through the automatic detection of flow and pressure by the microprocessor and controller, it can achieve quantitative control of air inlet. By controlling the pressure and flow of air inlet, the concentration of gas can be easily and quickly analyzed, which makes GC4000 more accurate and convenient to use. The results of the comparison test between the manual inlet and the micro-gas controller at the inlet end of the gas chromatograph show that the device has good intake stability and accuracy.关键词
煤矿火灾气体检测/气相色谱仪/自动控制/进气装置/流量控制Key words
coal mine fire gas detection/gas chromatograph/automatic control/air intake device/flow control分类
矿业与冶金引用本文复制引用
陆卫东,陈志峰,程刚,左晨..GC4000气相色谱仪进气端微量气体控制器[J].煤矿安全,2019,50(4):104-107,4.基金项目
国家自然科学基金资助项目(51574250) （51574250）
