煤气与热力2026，Vol.46Issue(1)：80-84,5.
基于负压驱动的埋地燃气管道泄漏点定位方法
Leak Point Localization Method for Buried Gas Pipelines Based on Negative Pressure Driven Principle
罗涛 1刘敏 1高观玲 1黄泽惠 1岑佶松 1韩赞东1
作者信息
- 1. 北京市燃气集团有限责任公司,北京 100035
- 折叠
摘要
Abstract
Based on the traditional detection hole local-ization method,this study proposes a leak point local-ization method for buried gas pipelines based on nega-tive pressure-driven principle(hereinafter referred to as the negative pressure localization method for short).The localization principle and localization steps are analyzed.By establishing negative pressure points,the original gas distribution in the soil is changed,and the leak location is determined by monitoring the changes in gas volume fraction in the detection holes.A numeri-cal model for gas leak diffusion in soil was developed to investigate the gas distribution under negative pres-sure suction conditions.Field tests and subsequent ex-cavation were conducted to verify both the distance be-tween the identified localization point and the actual leak center and the overall effectiveness of the method.The results demonstrate that the negative pressure lo-calization method achieves good localization results,while the uniformity of the soil structure exerts a mea-surable influence on localization accuracy.关键词
城市燃气管道/泄漏点定位/负压定位法/燃气体积分数Key words
urban gas pipeline/leak point localization/negative pressure localization method/gas volume frac-tion分类
建筑与水利引用本文复制引用
罗涛,刘敏,高观玲,黄泽惠,岑佶松,韩赞东..基于负压驱动的埋地燃气管道泄漏点定位方法[J].煤气与热力,2026,46(1):80-84,5.
