The design pressure for the pipeline equipment at natural gas gate stations in urban gas supply is 10 MPa; should it be designed according to the standards for long-distance transmission stations?
Thread Content
The design pressure for the pipeline equipment at natural gas gate stations in urban gas supply is 10 MPa; should it be designed according to the standards for long-distance transmission stations? What is the basis?
There are also others at 6.3 MPa, 8 MPa, etc. Currently, the design pressure for many gate stations is above 4 MPa. The upper limit specified in the gas codes is 4 MPa, and it is stipulated that pipelines with pressures above 4 MPa should be designed in accordance with pipeline transportation standards, while also taking into account the gas codes. However, no specifications are set for pressures exceeding 4 MPa at the stations. When designing gate stations, many gas companies use a design pressure of 10 MPa, still following the gas industry standards; requirements regarding spacing as well as various pressure testing procedures are also based on those standards, with relatively loose constraints. Personally, I think the long-distance transmission stations should take gas safety regulations into consideration; what do others think?