How to achieve (optimal) pressure reduction from 25 MPa to 0.03 MPa? Answers are welcome
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Well pressure is 25 MPa, and water capacity is ~50,000 cubic meters. Now it is necessary to reduce the water well pressure to normal levels; what are some viable solutions? The condition is to maintain a flow rate of ~20 m3/h and reduce the water pressure in the well from 25 MPa to atmospheric pressure?
Multi-stage orifice plates have one problem: as the pressure decreases, the flow rate through the orifice plate also decreases. Is there any way to maintain a constant flow rate?
The number of orifice plates and their diameter are determined based on the flow rate and pressure drop you require
According to the regulations of the Ministry of Chemical Industry, a pressure drop of 2.5 MPa requires an orifice plate with 2 stages of reduction; to reduce pressure from 25 MPa to 0.03 MPa, at least 20 stages of orifice plates are needed. To achieve 20 stages, these orifice plates must be arranged in configurations of 4×5 or 3×7. Each buffer achieves a multi-stage pressure reduction goal; the number of buffers (multi-stage orifice plates) × the number of stages in each orifice plate (multi-stage orifice plate)
There is a problem with the calculation of pressure reduction using orifice plates: as the upstream pressure gradually decreases, for example to 6 MPa, the flow rate can no longer be guaranteed for an orifice plate that was originally designed for 25 MPa
When using a multi (porous) orifice plate, be careful to select a set of data in which the flow velocity and CV(KV) are relatively balanced, and proceed step by step using the software.
What’s the name of the software? Can it be downloaded? Please share it