After the GB51142 standard was issued, how does sequential control function?
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Hello everyone. According to Chapter 12 of the new standard, the \"Design Code for Liquefied Petroleum Gas Supply Engineering\" GB51142-2015, it states that \"combustible gas alarm controllers should be interlocked with the control system.\" I would like to ask how people implement this interlocking when working on such projects? ? Does a concentration alarm in a specific area cause the inlet and outlet valves of that area to be closed? ?
When the combustible gas level in the process unit area exceeds the limit, the station shutdown is triggered, and the inlet and outlet isolation valves are shut off via interlock.