摘要
分析了人工煤气转换成天然气后灰铸铁管接口泄漏的原因,比较了铸铁管改造更新中6种常用的非开挖技术,提出了铸铁管改造对策。
The reasons of leakage at grey cast iron pipe joints after conversion of manufactured gas into natural gas are analyzed. Six kinds of common trenchless technologies used in reconstruction and replacement of cast iron pipe are compared, and the countermeasures for cast iron pipe reconstruction are put forward.
出处
《煤气与热力》
2009年第11期1-4,共4页
Gas & Heat
关键词
铸铁管
接口泄漏
改造
更新
非开挖
cast iron pipe
joint leakage
reconstruction
replacement
trenchless
