Is the high-pressure gas vent pressure relief valve suitable?
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I’m a junior researcher; in the laboratory we conduct experiments with high-pressure gases, and it’s necessary to use pumps to raise the pressure of nitrogen to 25 MPa. After passing through the heat exchanger and collecting the data, the gas can then be released directly. The problem now is that the pressure is very high; direct discharge would result in a lot of noise. Is a pressure reducing valve suitable for such a situation? I believe that with the pump operating ahead and the pressure reducing valve in place, the pressure in the heat exchanger section could exceed 25 MPa, which is unsafe. However, I haven’t come up with a better solution for now; I hope those who are knowledgeable can help. Thank you.
Using a pressure relief valve is safer, but it also produces noise during discharge; a silencer can be installed afterward
The poster can use a back pressure valve; I’ve sent you my contact details via private message for communication through QQ
Need to release stress quickly? It can be connected to water later
LZ, you need a device now to release the high-pressure nitrogen, but it is required that this device not cause an increase in pressure within the pipes. I suggest designing a special noise reducer; around 5 levels might be necessary. I don’t know what the diameter of yours is.
Using a pressure relief valve will cause the pressure ahead to rise above 25 MPa, right?
Sorry, I just saw it now. I’ll get in touch with you tomorrow
I’ve really never heard of such a treatment method before; is there indeed such a way of handling things in engineering? I’d like to hear the details
The pipe diameter is around DN20. Do you mean that the grade 5 configuration involves 5 noise reducers connected in series?
I wonder what valve you use for venting? If it is a needle valve, it is best to release the pressure slowly when venting; open it a little at a time to gradually reduce the pressure. The pressure relief pipe can be enlarged step by step, eventually reaching DN80 or DN100; a silencer can be added at the pipe outlet, and that’s it.
We are still in the stage of considering valves; in my application, the pressure is extremely high, and when pressure is released, the temperature drops, which can easily cause the valves to freeze and get damaged. Thank you for your suggestion. If you are aware of any relevant manufacturers or solutions for such situations, please feel free to send me some information via private message.