Problem with the steam pressure relief valve; seeking expert help
Thread Content
Gentle experts, here’s the situation. I have been designing a process recently. In the process, there is steam with a diameter of DN50 and a pressure of 8 kilograms provided by the owner; this steam needs to be depressurized before being fed into the packing tank. The depressurized steam is then released into the atmosphere through the packing in the tank, resulting in a pressure drop of approximately 5 kPa across the packing layer ； So here’s the question: if I set the pressure behind the pressure regulator to 0.8 kilograms, will it then be impossible to reach 8 kilograms behind that pressure regulator? In this case, does the steam pressure relief valve function as if it were failed?
The pressure of the pressure relief valve is adjustable.
It should be invalid under normal circumstances； When the flow rate is particularly high, the exhaust pipe is not fast enough to discharge the gas, and pressure may rise above normal levels; this is when it becomes effective. The pressure relief valve can be replaced with a flow control valve, and a high-pressure shutdown valve can be set according to the design pressure of the filler tank.