曹煜, 于润桥, 夏桂锁, 陈晨. 热力管道磁-温综合检测技术[J]. 南昌航空大学学报(自然科学版), 2015, 29(1): 94-99. DOI: 10.3969/j.issn.1001-4926.2015.01.016
引用本文: 曹煜, 于润桥, 夏桂锁, 陈晨. 热力管道磁-温综合检测技术[J]. 南昌航空大学学报(自然科学版), 2015, 29(1): 94-99. DOI: 10.3969/j.issn.1001-4926.2015.01.016
CAO Yu, YU Run-qiao, XIA Gui-suo, CHEN Chen. Heat-supply Pipeline Magnetic-thermal Comprehensive Test Method[J]. Journal of nanchang hangkong university(Natural science edition), 2015, 29(1): 94-99. DOI: 10.3969/j.issn.1001-4926.2015.01.016
Citation: CAO Yu, YU Run-qiao, XIA Gui-suo, CHEN Chen. Heat-supply Pipeline Magnetic-thermal Comprehensive Test Method[J]. Journal of nanchang hangkong university(Natural science edition), 2015, 29(1): 94-99. DOI: 10.3969/j.issn.1001-4926.2015.01.016

热力管道磁-温综合检测技术

Heat-supply Pipeline Magnetic-thermal Comprehensive Test Method

  • 摘要: 针对直埋式城市热力管道在运行过程中出现的泄漏,提出了一种磁-温综合检测技术,该方法的特点主要包括:非开挖、在役检测、快速定位等。根据直埋式热力管道结构特点和泄漏特征,利用红外测温技术确定可疑泄漏区域、微磁技术判断管道破损程度。研制仪器并进行现场试验,开挖验证仪器测量结果。结果表明:热力管道磁-温综合检测方法对直埋式城市热力管道泄漏判断的准确率可达90%、定位精度可达0.5 m。本研究工作为热力管道泄漏检测提供了切实可行的检测方法。

     

    Abstract: A magnetic-thermal comprehensive test method was proposed for the leakage of directly buried urban heat-supply pipeline that occurs during operation. The main features of this method included non-excavation, in-service inspection and rapid positioning, etc. According to the structural characteristics and leakage characteristics of directly buried heat-supply pipe, suspicious areas can be identified by infrared temperature measurement technology, and the level of damage to the pipeline can be tested by micro-magnetic technology. After developing the instrument and conducting real test, the test results were verified by excavation. The results show that the correct rate of magnetic-thermal comprehensive test method on the leakage of directly buried urban heat-supply pipe can reach 90%, and the location precision was within 0.5 meter. The study provided practicable method for heat-supply pipes leakage location detection.

     

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