摘要
本安设计是通过限制电火花和热效应两个点燃源的能量来实现的。在爆炸性及有毒气体的作业环境下,根据GB 3836.4-2010的标准要求对H2S检测仪进行本质安全的设计,具体包括电源电路设计、RL78/G13芯片的选择等。计算结果表明,该检测仪的整体设计具有高安全性、低功耗、便携式、低电压输出等特性。本质安全设计为工业安全生产提供了安全保障,是一种安全可行的设计方案。
The intrinsic safety （IS） design is realized by restricting the energy of two of the ignition sources, i. e. , the electric spark and thermal effect. For specific operating environment with explosive and toxic gas, in accordance with requirement of GB 3836.4-2010 standard, the IS design for H2S detector is carried out; it includes circuit of power supply, and the selection of RL78/G13 chip, etc. The result of calculation indicates that the general design of the detector features high security, low power consumption, low voltage output characteristic and portability. The IS design provides security guarantee to safety industrial production, it is a feasible and safe design scheme.
出处
《自动化仪表》
CAS
北大核心
2013年第7期43-45,48,共4页
Process Automation Instrumentation
关键词
电火花
热效应
低功耗
本安设计
H2S检测仪
Electric spark Thermal effect Low power consumption Intrinsic safety design H2S detector
