How to calculate the pressure of a liquid on a pipe
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I’m seeking help from experienced technical experts. To determine the design pressure of a pipe, I need to know its operating pressure. But how is this operating pressure calculated? Is it based on the gravity of the liquid? And how should the contact area be determined? Or is it the saturated vapor pressure of the liquid? However, that value seems too low. I hope someone can help me figure this out
Look at the upstream and downstream processes – what pressure is required in the manufacturing process?
The upstream unit is an atmospheric pressure reactor, and the downstream unit is an atmospheric pressure tank; flow occurs due to gravity. I would like to ask again how to calculate the operating pressure of the pipes
The pressure of a liquid on a pipe can be calculated in the following ways: 1. Static pressure: Static pressure is the pressure exerted by a liquid due to gravity, and it can be calculated using the density of the liquid and the height at which it is located. The formula is P = ρgh, where P is the static pressure, ρ is the density of the liquid, g is the acceleration due to gravity, and h is the height of the liquid. 2. Dynamic pressure: Dynamic pressure is the pressure generated by fluid flow, and it can be calculated using Bernoulli’s equation in fluid mechanics. The Bernoulli equation is expressed as P + 1/2ρv^2 + ρgh = constant, where P is pressure, ρ is the density of the liquid, v is the flow velocity of the liquid, g is the acceleration due to gravity, and h is the height of the liquid. The pressure of the fluid can be calculated based on the requirements. 3. Design pressure: The design pressure generally refers to the pressure that a pipeline can withstand, and working conditions as well as safety factors need to be taken into account. The design pressure should have a certain safety margin above the operating pressure; this can be determined based on actual conditions and relevant standards and specifications. It should be noted that when calculating the pressure exerted by a liquid on a pipe, factors such as the saturated vapor pressure of the liquid, frictional losses, the size and material of the pipe, as well as process requirements related to pressure release, control, and regulation of the pipe must also be taken into account. The specific calculation method can be chosen according to the particular circumstances. .