摘要
由于LNG有易燃易爆的性质,气体燃料动力船具有不同于常规燃料船舶的风险,控制、监测和安全系统集控制和安全保护于一体,是实现LNG供气系统安全可靠运行的核心。本文在分析了LNG供气系统组成和原理的基础上,设计了1套基于PLC的分布式控制系统。控制系统和安全系统相互独立,有效避免了共因故障,而后介绍了人机界面的功能和控制逻辑,为LNG供气系统控制、监测和安全系统设计提供参考。
Due to the flammable and explosive nature of LNG,gas-fueled ships have different risks from conventional fuel ships.The control,monitoring and safety system,which integrates control and safety protection,is the core to realize the safe and reliable operation of LNG gas supply system.Based on the analysis of the composition and principle of LNG gas supply system,a set of PLC based distributed control system is designed.The control system and safety system are independent of each other,which effectively avoids common cause failure.Then,the function and control logic of human-machine interface are introduced,which provide guidance for LNG supply system control monitoring and safety system design.
作者
曾小林
丁尚志
李家乐
郭正华
张晖
ZENG Xiaolin;DING Shangzhi;LI Jiale;GUO Zhenghua;ZHANG Hui(Shanghai Marine Equipment Research Institute,Shanghai 200031,China)
出处
《机电设备》
2020年第6期53-56,共4页
Mechanical and Electrical Equipment
