煤气与热力2024，Vol.44Issue(5)：14-21,8.
高压燃气管道试压介质转换的分析与建议
Analysis and Suggestions for Medium Conversion of High-pressure Gas Pipeline Pressure Test
石丹阳 1陈赐铭 1左怀梦 1秦康1
作者信息
- 1. 中裕(河南)能源控股有限公司,河南 郑州 450000
- 折叠
摘要
Abstract
According to Standard for Construc-tion and Acceptance of City Gas Transmission and Dis-tribution Works(GB/T 51455-2023),after conducting strength tests using water as the medium,the tightness test medium should be converted to air or inert gas.There are no similar requirements when examining oth-er domestic and international standards.By analyzing the applicability range of air in the tightness test of oth-er standards,the gas tightness test is mainly used for plant and station pipelines,and for non-welded sealing methods.According to the engineering practice,the typical pressure test accidents are compared and ana-lyzed,and two main risks of projectile and crack propa-gation are summarized.Through the theoretical calcu-lations,it is proved that the safety of water as a pres-sure test medium is much higher than that of air in both projectile and crack propagation.It is suggested that the medium used for the tightness test of high-pressure gas pipelines should be consistent with the strength test using water,without the need for medium conversion.关键词
高压燃气管道/试压介质转换/强度试验/严密性试验Key words
high-pressure gas pipeline/pres-sure test medium conversion/strength test/tightness test分类
建筑与水利引用本文复制引用
石丹阳,陈赐铭,左怀梦,秦康..高压燃气管道试压介质转换的分析与建议[J].煤气与热力,2024,44(5):14-21,8.
