Calculation of orifice plates for pressure adjustment
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There are numerous pipeline branches after the pump; to ensure consistent water pressure at each branch, it is intended to install an orifice plate on the return pipeline that collects water from all branches, in order to increase and balance the pressure at each branch. How is the orifice plate size calculated? For a DN50 pipe with a flow rate of 15 T/H of water at 50 degrees Celsius, if the pressure before the orifice plate is set at 0.20 MPa and the pressure after it is assumed to be 0.05 MPa, what is the diameter of this orifice plate? Please provide the calculation process and formulas.
What does a branch aggregation return pipeline refer to? Where exactly is the orifice plate installed? It would be best to have a schematic diagram
This post was last edited by a114977445 on 2017-9-26 11:44. Equation of conservation of energy, conversion of pressure energy into kinetic energy. The orifice plate diameter can be deduced from the velocity. It should be noted that in order to ensure that the pressure loss in the pressure-reduction pipeline does not become too high, the pipeline after pressure reduction needs to be enlarged accordingly. Formula: P/r + v²/2g + Z1 = P/r + v²/2g + Z2. p = pressure, v = velocity, g = specific gravity, z = height
Please calculate it for the DN50 item above using your formula.
Such a small hole. Can the calculation process be written out?
The orifice plate pressure drop is calculated using Bernoulli’s equation, and the orifice diameter is determined in accordance with HGT 20570.15-1995 regarding the installation of flow-limiting orifice plates in pipelines