安全监控系统“ib/ia”转换电路设计  

Design of "ib/ia" Conversion Circuit for Safety Monitoring System

作　　者：许多康 刘亚辉[2,3] XU Duo-kang;LIU Ya-hui(Statistics Center of Chongqing Coal Regulaton Bureau,Chongqing 400039,China;State Key Laboratory of Gas Disaster Detecting,Preventing and Emergency Controlling,Chongqing 400037,China;Chongqing Research Institute,China Coal Technology and Engineering Group,Chongqing 400039,China)

机构地区：[1]重庆煤监局统计中心,重庆400039 [2]瓦斯灾害监控与应急技术国家重点实验室,重庆400037 [3]中煤科工集团重庆研究院有限公司,重庆400039

出　　处：《煤炭技术》2020年第7期182-185,共4页Coal Technology

基　　金：天地科技股份有限公司科技创新创业资金专项项目(2019-TDMS016);2019年重庆市技术创新与应用发展重点项目(cstc2019jscxmbdxX0007)。

摘　　要：针对瓦斯抽采管道传感器接入煤矿井下安全监控系统的问题,设计一种"ib/ia"的电源及信号转换电路,在不调整现有系统结构的前提下,解决瓦斯管道传感器的本安防爆等级与安全监控系统本安防爆等级不兼容的问题。实验表明,该转换电路可适用不同电压等级的安全监控系统,具有转换效率高、信号失真小、应用范围广等特点。In view of the problem that the sensor of gas drainage pipeline is connected to the mine safety monitoring system, a "ib/ia" power supply and signal conversion circuit is designed to solve the problem that the intrinsic safety explosion-proof level of gas pipeline sensor is incompatible with the intrinsic safety explosion-proof level of the safety monitoring system without adjusting the existing system structure. The experiment shows that the circuit can be used in different voltage level security monitoring system, which has the characteristics of high conversion efficiency, small signal distortion and wide application range.

关 键 词：监控系统 瓦斯管道 防爆等级 ib/ia 本安电源 

分 类 号：TD712[矿业工程—矿井通风与安全] TD611