供热直埋管道泄漏磁温综合检测方法  

Comprehensive Detection Method of Magnetic Field and Temperature for Leakage of Directly Buried Heating Pipeline

作　　者：朱咏梅 李峻嵩 裴连军 付金栋 李力 王永 孙继伟 范彦钊[5] ZHU Yongmei;LI Junsong;PEI Lianjun;FU Jindong;LI Li;WANG Yong;SUN Jiwei;FAN Yanzhao

机构地区：[1]天津市热电有限公司,天津300161 [2]天津恒泰感知精测科技有限公司,天津300221 [3]天津津能股份有限公司,天津300050 [4]天津市城安热电有限公司,天津300201 [5]天津市津安热电有限公司,天津300204

出　　处：《煤气与热力》2022年第1期33-35,共3页Gas & Heat

摘　　要：结合供热管道泄漏位置的磁场和温度变化,提出磁温综合检测方法(弱磁检测技术与红外测温技术相结合),以非开挖方式确定泄漏位置。采用有限元仿真方法,模拟未泄漏,泄漏两种情况的供热管道及周围土壤温度场,结合检测结果检验磁温综合检测方法能否确定泄漏位置。针对实际泄漏管段,采取开挖手段验证磁温综合检测方法用于供热管道非开挖检测的可行性。结果表明,磁温综合检测方法可确定供热管道泄漏位置,可用于供热管道泄漏的非开挖检测。Combined with the changes of magnetic field and temperature at the leakage position of heating pipeline,a comprehensive detection method of magnetic field and temperature(the combination of weak magnetic detection technology and infrared temperature measurement technology)is proposed to determine the leakage position in a trenchless manner.The finite element simulation method is used to simulate the temperature field of the heating pipeline and the surrounding soil without leakage and with leakage.Combined with the detection results,it is verified whether the comprehensive detection method of magnetic field and temperature can determine the leakage location.Aiming at the actual leakage pipe section,the excavation method is adopted to verify the feasibility of the comprehensive detection method of magnetic field and temperature for trenchless detection of heating pipelines.The results show that the comprehensive detection method of magnetic field and temperature can determine the leakage location of heating pipelines,and can be used for trenchless detection of heating pipeline leakage.

关 键 词：供热直埋管道 弱磁检测 红外测温 非开挖检测 泄漏 

分 类 号：TU995.3[建筑科学—供热、供燃气、通风及空调工程]