A problem with the stress analysis and design of a pressure pipeline?
Thread Content
When analyzing and designing pressure pipelines, I saw that a standard specifies the following: buried steel pressure pipelines with a design pressure of not more than 35 MPa and a design temperature of less than 100ºC, as well as non-buried steel pressure pipelines with a design pressure of not more than 42 MPa and a design temperature that does not exceed the allowable operating temperature of the material. ” Why is the allowable design pressure for buried pipes lower than that for non-buried pipes? It seems that buried pipes, having an outer “covering,” should allow for a higher design pressure. May I ask what factors are related to the regulations on design temperature?
The risk associated with buried pipes is not as high as that of exposed pipes; exposed pipes are subject to more external influences, which means there are more factors to take into consideration. The pressure is high, and the design temperature is primarily determined by the medium inside the pipeline. It is also restricted by the piping. It’s explained very clearly in the design manual.