ASME Y32.11-1961 pdf download Graphic Symbols For Process Flow Diagrams In Petroleum And Chemical Industries 石油和化学工业中工艺流程图的图形符号

ASME Y32.11-1961 pdf download,Graphic Symbols For Process Flow Diagrams In Petroleum And Chemical Industries 石油和化学工业中工艺流程图的图形符号.
This preliminary set of standard symbols has been developed for use on the basic process flow diagrams in order to represent the major items of equipment used by the petroleum and chemical industries.
这套初步的标准符号是为了在基本的流程图上使用，以表示石油和化学工业中所使用的主要设备。
A process flow diagram is the first drawing made to show the basic items of major equipment and their relation to one another in the process scheme. The more important flow lines are indicated as connecting these pieces of equipment and help to describe how the process operates.
流程图是用来展示主要设备的基本项目及其在流程方案中相互关系的第一张图纸。更重要的流动线被指示为连接这些设备，并帮助描述流程的运作方式。