Pipeline pressure consultation
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Assuming the output pressure of the air compressor is 0.9 MPa and the setting of the pressure reducing valve is also 0.9 MPa, with the lengths and diameters of pipes A, B, and C being identical, what will be the output pressure at ports A, B, and C: 0.9 MPa or 0.3 MPa?
Based on the information provided in the question, assuming that the output pressure of the air compressor is 0.9 MPa and the setting of the pressure reducing valve is also 0.9 MPa, with the lengths and diameters of pipes A, B, and C being identical, then the output pressure at each of the outlets A, B, and C will be 0.9 MPa. This is because the function of a pressure relief valve is to reduce the pressure in the air flow output by the air compressor to an appropriate level, so that the air pressure can meet the working pressure requirements of the user, rather than lowering the output pressure all the way to 0.3 MPa. Therefore, the output pressure for all three units of ABC is 0.9 MPa. .
The pressure setting of the pressure relief valve is also 0.9 MPa; therefore, the pressure downstream of the valve is 0.9 MPa
Is there something wrong with this question? If the pressure after decompression is equal to the pressure before decompression, then why is decompression necessary? Where does 0.3Mpa come from? It’s best to describe the problem clearly, indicating what issue needs to be solved, to facilitate discussion. If you are interested in such issues, the best thing to do is to get a copy of \"Principles of Chemical Engineering\" to read; then nothing will be a problem. For reference.
What is the function of the pressure relief valve here?
The conditions given for the question seem to be insufficient. Reason: Assuming that the pipeline downstream of the pressure reducing valve is infinitely large, can it be considered as discharging to the atmosphere? In that case, the pressure downstream of the pressure reducing valve should be atmospheric pressure or slightly higher than atmospheric pressure – how could it be 0.3 or 0.9 MPa?
Do you know about the gas source distributor? ABC is the outlet of the gas source distributor. The focus of the original poster isn’t whether or not the pressure relief valve functions properly, right? It’s probably the issue of multiple straight pipes in the main pipeline, and the relationship between the pressure in that main pipeline and the pressure in those straight pipes
0.9 MPa; it’s not that you need to divide by 3 just because there are 3 pipes~~
Fluids transmit pressure, solids transmit force
Don’t worry about other conditions; it should remain at a constant 0.9 MPa. It’s just that the traffic will be a bit less than that of the supervisor.