How can the pipe characteristic table and the pipe section table for pressure pipelines be distinguished?
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I would like to ask the experts on this forum: What are the origins of the pipeline property tables and pipe segment tables, what is their purpose, and are there any standard specifications for a fixed format? How to define a pipeline? For example, if there is a pipe connecting container A to container B, and another pipe connecting container B to container C, with no separate pipe connecting A and C, then in the sequence A----B----C, can the pipe from A to C be considered one pipe? How should this be defined from the perspectives of design, management, and inspection – as one pipe (AC) or as two pipes (AB and BC)? Please give me some guidance!
Firstly, a pipeline characteristic table refers to the temperature, pressure, medium parameters of the pipeline, as well as its starting point; various standards specify corresponding formats for this. For example, HG/T20519 issued by the Ministry of Chemical Industry defines a pipeline section table as a single-line diagram, which is the specific drawing of each pipeline, along with a table detailing the materials used for that pipeline. The pipelines you are referring to are two pipelines. If the design pressure of the container is lower than the pressure used for pipeline testing, it is necessary to consider separating the pipeline from the container and testing them separately, or using other methods; for details, refer to GB 50316
The pipeline characteristic table provides information on the medium contained within a given pipeline, as well as various parameters, temperature, and pressure values; it serves as a prerequisite for creating a pipeline database. The pipe segment index table is a summary of the pipeline layout diagram, while the pipe segment material table is a table that summarizes the materials used for each individual pipe in that layout diagram. Pipelines are defined based on the connected lines – the pipes from one end to the other constitute one pipeline. In other words, a branch can be considered a separate pipeline, or all branches that are connected to each other can also be regarded as one pipeline. According to your description, AC does not constitute a pipeline, while AB and BC form two separate pipelines, with no connection between AB and BC
Thank you. What other regulations are there besides those from the Ministry of Chemical Industry?
Thank you. The method you mentioned for dividing pipelines is specified in which standards and can be found there. . .
Pipeline technical characteristics table, including process design parameters; the pipe section table is a material list prepared by the piping department
Is there a Ministry of Chemicals now? Isn’t it the Ministry of Industry and Information Technology?
Remember one thing: pipes are used to connect devices, and that’s all that matters
Fittings and instruments can be installed on the pipes, but no equipment is allowed; if equipment is present, the pipes must be segmented
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