Design of an explosion-proof grade conversion interface for mine gas pipeline equipments
-
摘要: 针对煤矿瓦斯抽放监控系统中瓦斯管道设备及其相关联的电源和通信接口必须满足“ia”安全防爆等级要求，在现有“ib”防爆等级的煤矿瓦斯抽放监控系统基础上，通过增加一种安全等级转换接口对瓦斯管道设备进行了升级改造。详细介绍了具有梯形输出特性的阻性限流的电源转换原理和具有线性输出特性的阻性限流的信号转换原理，并对关键元件的相关参数进行了分析及计算。测试结果表明，该转换接口具有转换效率较高、频率失真小等特点，输出特性满足“ia”安全防爆等级要求。Abstract: According to requirements that gas pipeline equipments and its associated power supply and communication interface must satisfy the "ia" safety explosion-proof grade in mine gas drainage monitoring system, the gas pipeline equipments can be upgraded by increasing an explosion-proof grade conversion interface based on current mine gas drainage monitoring system with the “ib” explosion-proof grade. Power conversion principle with resistive current limiting and trapezoidal output characteristics, and signal conversion principle with resistive current limiting and linear output characteristics were introduced in detail. Related parameters of key components were analyzed and calculated. The test results show that the conversion interface has the characteristics of high conversion efficiency and low frequency distortion, and its output characteristics meet the "ia" safety level requirements.
-
-
期刊类型引用(5)
1. 程显，余亚东，葛国伟，张钰峥，万其森. 混合式直流断路器状态感知技术与智慧框架体系探讨. 电网技术. 2024(07): 3033-3042 . 
百度学术
2. 陆旭锋，王霄峰，左昊忱. 基于电容耦合法的高压断路器真空度在线监测技术研究. 仪表技术. 2024(04): 82-86 . 百度学术
3. 杨永旭，许鑫，张慧媛，吴振升. 太赫兹波光谱传输在断路器真空度检测中的应用. 电气应用. 2022(08): 45-51+7-8 . 百度学术
4. 李宇，王忠利. 电力断路器的真空度在线检测系统设计. 仪表技术与传感器. 2020(11): 91-94+100 . 百度学术
5. 陈江，杨帆，陈洪飞. 新型矿用高压真空配电装置的应用研究. 煤炭与化工. 2018(09): 87-89+93 . 百度学术
其他类型引用(3)
计量
- 文章访问数: 71
- HTML全文浏览量: 13
- PDF下载量: 15
- 被引次数: 8
下载:
