Installation design of safety valves on hydrogenation reactors
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Gentlemen, here’s the issue: the hydrogenation reactor is located at 5.5m, while the explosion venting tank is located at 10.5m. The hydrogenation reactor is equipped with a safety valve; once this valve activates, the pipeline leads to an explosion vent tank. When designing pipelines, I believe the outlet piping of the safety valve must be at a higher level than the vent tank, to prevent backpressure from forming due to liquid accumulation behind the valve. However, the review team said that the safety valve has always been placed near the reactor, and it is acceptable for its outlet to be below the explosion vent tank. How should a decision be made in this case? How was the site designed? Thank you!
Does the safety valve discharge a liquid medium?
The lower layer of the reactor contains liquid, while the upper layer is gas; I think some liquid will be carried along when it is discharged
No matter how the piping is arranged, there is liquid accumulation behind the valve. Add drain valve
This safety valve is not good; the reaction temperature is so high that the safety valve activates immediately, causing the temperature to rise sharply. After it returns to its normal position, the temperature drops sharply again, which inevitably leads to leaks at the flange.