瓦斯抽放管道设备ia等级防爆型式探讨  

Discussion on ia grade explosion-proof type of gas drainage pipeline equipment

作　　者：柏思忠 

机构地区：[1]中煤科工集团重庆研究院有限公司,重庆400039

出　　处：《工矿自动化》2015年第5期55-57,共3页Journal Of Mine Automation

基　　金："十二五"国家科技支撑计划资助项目(2014BAC17B00);中煤科工集团重庆研究院有限公司自立项目(CQ1406)

摘　　要：分析了瓦斯抽放管道设备的ia等级防爆型式要求,从并联限压电路、串联限流电路、隔离电路方面给出了ia等级管道设备的实现方案;针对瓦斯抽放监控系统中电源供电回路和信号传输链路的设备连接提出了电源全回路ia等级、分站级设备ib/ia转换、增加ib/ia转换器的设计方案。现场应用情况验证了该方案的可靠性。Requirements of ia grade explosion-proof type of gas drainage pipeline equipment were analyzed,and realization scheme of ia grade pipeline equipment was gave from aspects of parallel pressure limiting circuit,series current limiting circuit and isolating circuit.In view of equipments connection of power supply circuit and signal transmission link in gas drainage monitoring system,design schemes of power supply circuit with ia grade,substation level equipment with ib/ia conversion and adding ib/ia converter were proposed.The field application verifies reliability of the schemes.

关 键 词：瓦斯抽放 管道设备 防爆 监控系统 

分 类 号：TD684.76[矿业工程—矿山机电]