PSV for solvent thermal expansion

[SelimElibol]

Hello I have a blocked in pipe section in a manifold for which i want to design a relief system.
The issue I have conceptually is the safe location. So downstream of each HVxx i would like to know typically what vents are used.
Now we have a full blown vessel to collect expansion of all 10 solvents but maybe thats overkill.
It consists of a vessel with low and high level alarms, and venting of that one goes to a scrubber (SCL1).
But if we want to do it like this we also need inerting with nitrogen and it starts to become problematic.

Thanks in advance for your advice and reply.

 

[Snickster]

My experience with piping thermal relief valves are that they are installed on the piping that can be blocked in and discharge into the same piping downstream (or upstream) of the block valve so that the flow is back to the same piping. Every section of piping between valves that can be blocked in is provided with a thermal relief valve that discharges into the next section and so on, until the final section relief valve discharges into a vessel in the system that has volume to absorb the flow without over pressuring.