国内外管道等级表差异分析及建议

Domestic and foreign piping class ratings:Comparison and proposals

完善的管道等级表对于管道的工程设计、物资采购、安装施工、生产运行有着重要的指导意义。通过对比国内外知名工程公司的管道等级表,分析两者在编制理念、编制方式、编制内容存在的差异,发现:①国内工程公司对管道等级表的重要性认识不足,未能充分发挥其在管道工程建设和生产运行中的作用;②国内管道等级表的编制理念仅停留在指导工程设计层面,未能满足便于采购的需求;③同一公司不同部门、不同项目均有各自的管道等级表,且编制格式尚未统一,编制内容参差不齐,造成严重的资源浪费。进而建议:①提高对管道等级表重要性的认识,转变管道等级表的编制理念,编制深度应能满足用户采购需求,充分发挥其在采购中的作用;②尽快统一管道等级表的编制格式和内容,完善管道材料、阀门等有关描述内容;③由材料专业部门牵头编制管道等级表,各工艺(储运、加工处理等)专业部门配合完成管道等级表的编制。

A complete series of piping class ratings is of great significance to pipeline-associated projects including engineering design, material procurement, pipe installation and operation. First, this paper compares the foreign and domestic piping class ratings and the differences were found out in the aspects of their compiling concept, modes and content. The following shortcomings were con- cluded for domestic piping class ratings, a. The important role of the piping class ratings has long been ignored by many domestic en gineering companies so that their full play could not ever been given to engineering construction and pipeline operation, b. The domestic piping class ratings aim only to engineering design so they do not meet the procurement need. c. Different piping class ratings with distinctive formats and contents can be seen from various departments or different projects even in the same company, which re- suits in the waste of resources. Accordingly, some positive proposals were presented for domestic piping class ratings, a. Their im- portance and seriousness should be strengthened and their compiling aims should also meet the procurement need. b. Their compiling format and content should be unified and material requirements, valve description, etc. should be completed, c. Their compilation should be done by special tubular goods departments, coordinated and supported by the other disciplines like those of storage and transmission, processing, and so on.