1, graph, which indicates which components the constructed pipe section consists of and their positions in three-dimensional space;
2. Engineering data, including pipeline design parameters, various sizes, elevations, pipeline marks, pipeline numbers, main requirements for installation and inspection, etc. ; The bill of materials lists the models, specifications, quantities and standard specifications of all parts of the pipe segment that make up the single-line diagram.
3, legend, compass and title box and other related content.
(2) Look at the details again: The contents in the single-line diagram should generally include the following basic contents:
⑴ Title box: it mainly defines the name, single line drawing number, pipeline label, drawing, signature of auditors and corresponding date of pipeline installation project;
(2) Compass: the direction indication of the basic direction of the pipeline; Main parameters of pipeline: mainly including design pressure, design temperature, medium name, pipeline grade, design specification and pipeline installation and construction acceptance specification;
(4) Legend: description of main components involved in the pipeline and drawing symbols of the pipeline under different laying methods;
(5) Basic information table of pipelines: it mainly includes the basic contents of pipelines that need 100% radiographic inspection as specified in the above-mentioned GB 50235-971.0.3.4, which should be marked on the single-line diagram, and some items that should be provided in Annex III of the Management Rules for the Use of Pressure Pipes (for Trial Implementation).
[6] Single-line diagram of pipeline: A single-line diagram of pipeline drawn by means of axonometric drawing accurately shows the specifications, length, elevation, number and approximate position of welded joints of each section. For the specifications, brands and corresponding material standards of pipeline materials, and when there are many components involved in the pipeline, you can also consider adding the material list with basic information of pipeline components.
(three) according to the relevant legend, pipeline marking method to read. Looking at drawings is not a day's work. You should think more and use Baidu search more.