Standard of chemical process flow chart
Chemical process flow chart is a graphical representation of a pattern of the chemical production process and the required equipment, pipelines, valves, pipe fittings, pipe accessories and instrument control point out, is the equipment layout and piping layout design basis, as well as for construction, operation, operation and maintenance, is the main the content of chemical process design.
Drawing the chemical process flow chart is one of the contents of chemical drawing. Therefore, the national "mechanical drawing" standard is bound to the chemical drawing, and it is also effective in drawing the chemical process flow chart. But due to the special nature of the chemical process flow chart, the former Ministry of chemical industry has developed a set of standards for chemical process flow chart. Standard drawings, drawings, title bars, etc., and the provisions of the equipment graphics, line type, valves, fittings, drawing lines, legend and other expressions, equipment, pipelines, meters and other forms of tagging.
1 drawings, drawings and others
In the process of drawing the chemical process flow chart, drawings, drawings, fonts, proportions, title columns and so on, still use the national "mechanical drawing" standard, but some special places have been supplemented and explained. Chemical process drawings, drawings, still use national standards for drawings and drawings of the provisions of the general chemical process flow chart, the use of standard A1 specifications drawings, paintings, banners drawn. The process is simple, can use A2 specifications drawings.
Table 1 size of drawing