高温锅炉管道在线壁厚检测方法研究  

Research on on-line Wall Thickness Detection Methods of High-temperature Boiler Pipeline

作　　者：王杜 张皓琦 张月莹 吴家喜 潘煜 竺国荣 钱盛杰 徐佳敏 Wang Du;Zhang Haoqi;Zhang Yueying;Wu Jiaxi;Pan Yu;Zhu Guorong;Qian Shengjie;Xu Jiamin(Ningbo Special Equipment Inspection and Research Institute,Ningbo,Zhejiang 315048,China;Zhejiang Testing&Inspection Institute for Mechanical and Electrical Products Quality Co.,Ltd.,Hangzhou,Zhejiang 310051,China;Ningbo Labor Safety and Technology Services Company,Ningbo,Zhejiang 315048,China)

机构地区：[1]宁波市特种设备检验研究院,浙江宁波315048 [2]浙江省机电产品质量检测所有限公司,浙江杭州310051 [3]宁波市劳动安全技术服务公司,浙江宁波315048

出　　处：《化工设备与管道》2024年第5期102-109,共8页Process Equipment & Piping

基　　金：浙江省市场监督管理局科研计划项目(20210137);宁波市科技创新2025重大专项(2022Z165);浙江省市场监督管理局雏鹰计划核心项目(CY2022219)。

摘　　要：由于运输介质的特殊性,部分高温锅炉管道壁温可达500℃,因此常配置厚包覆层实现保温作用,考虑到其不便停机、难以拆除包覆层的问题,常规方法无法实现对其的在线壁厚测定。文章以一段高温锅炉管道模拟试样为试验对象,在高温条件下,应用不拆包覆层情况下的瞬变电磁检测及拆除局部包覆层情况下的电磁超声检测,实现管道壁厚的异常位置初步筛查,进而进行精准测量。基于此,提供了一套针对高温锅炉管道的壁厚测定方法,实现了高温锅炉管道在线壁厚检测。Due to the particularity of the transportation medium, the wall temperature of some high-temperature boiler pipelines can reach 500 ℃, so the thick coated layer is often configured to achieve the thermal insulation. Considering that it is inconvenient to stop and difficult to remove the ccoated layer, conventional methods can not achieve its on-line wall thickness measurement. In this paper, a simulated sample of the High-temperature boiler pipeline is used as the test object. Under high temperature conditions, the transient electromagnetic method (TEM) without removing the coated layer and the electromagnetic ultrasonic testing with partial removal of the coated layer are applied to achieve the preliminary screening of abnormal positions of pipeline wall thickness, and then to carry out precise measurements. Based on this, a set of methods of wall thickness measurement for high-temperature boiler pipelines are provided, which can realize on-line wall thickness detection of high-temperature boiler pipeline.

关 键 词：高温锅炉管道 瞬变电磁检测 电磁超声检测 在线壁厚检测 

分 类 号：TG115.28[金属学及工艺—物理冶金]