Do the shut-off valves and interlocking lines on the pipeline in the picture represent interlocking functions?
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Comrades, do the cut-off valves and interlocking lines on the pipeline in the picture represent interlocking functions? Find the solution!
It should be yes. From a process perspective, after safety interlocking is achieved, if HS-107 is triggered, HV-106 will close and I-106 will be triggered at the same time, causing HV-107 to close.； If HS-107 is triggered, the action of HV-107 is turned off and I-106 is triggered to turn off the action of HV-106. The accident state of HV-106HV-107 shut-off valve is TSO.
NOTE-8 written above, if you look for the process package, there should be control instructions, control plans, etc., and there will be explanations of this part in it.