Calculation of the diameter of the vent pipeline (to the flare system)
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This post was last edited by “Such a Coincidence of Names” on 2023-12-27 at 21:37. Is the calculation of the pipe diameter for relief pipelines (leading to the flare system) based on the Mach number? Now that the leakage rate is known, I don’t know how to determine the diameter of the pipe. Are there any requirements for setting the pressure at the pipe outlet?
The diameter of a discharge pipeline is typically not determined based on the Mach number, but rather through a comprehensive consideration of factors such as the discharge volume, safety requirements, fluid properties, and pressure drop. The pipe diameter can be determined using relevant fluid dynamics formulas or engineering experience. If you are unsure about how to calculate it, you can consult a professional engineer or refer to relevant engineering manuals. .
The Mach number refers to the maximum discharge velocity; typically, 0.2 or 0.5 is used for torch nozzles. The design specifications refer to HG/T20570.12-95 and SH 3009-2001
It is necessary to ensure that the back pressure of the entire system meets the requirements, in accordance with the maximum allowable back pressure at the connection point
Calculate considering the back pressure of the entire system