Leakage test of high-pressure pipelines
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For the design of a certain project, regarding the leakage test pressure for pipes operating at 20 MPa, did the designer use the same design pressure, that is, 20 MPa? Is this acceptable? How should it be handled?
I’ve never seen anyone do this; it should be at least 1.1 times, right?
You’re even better; this is a killing experiment! Please refer to a certain “LNG pipeline pressure testing explosion accident case””
With such high pressure, can’t the gas be replaced by water pressure?
The medium is flammable and requires a leak test.
With such pressure, I’ll run as far as I can.
On my end, I’m using 95% of the design stress
Bro, there’s no such thing as no danger in the petrochemical industry – how could that be possible? If you were on my work site, you wouldn’t just walk away so easily. If the operation is not done properly, even 1 kilogram of pressure can be fatal; I have already conducted a leakage test with 320 kilograms of pressure and nothing happened. Those pressure tests I did in the chemical industry before were nothing compared to this. As long as one follows the procedural documents and standard safety procedures, how is it possible to conduct a test explosion?
What material is used for pipes with a pressure of 320 kilograms? What is the wall thickness corresponding to the outer diameter?
Sure, please use a liquid dye test; try to avoid using gases as they are quite dangerous
A leak test is not a pressure test (hydrostatic test). Article 8.3 of the \"Code for Construction and Acceptance of Steel Piping Systems for Toxic and Flammable Media in Petrochemical Industries\" (SH 3501-2011) specifies requirements for gas leakage tests. These tests should be conducted after the pressure test is successful; air is recommended as the medium used for these tests, and the test pressure should be the lower of the design pressure of the piping system or the test pressure specified for the equipment