管壁金属层和氧化皮厚度高频超声波测量系统的建立  

High Frequency Supersonic System for Measuring Thickness of Metal and Oxide-Scale on Tube Wall

作　　者：李金峰[1] 郝红卫[1] 李海江[1] 

机构地区：[1]河北省电力试验研究所,河北石家庄050021

出　　处：《河北电力技术》2001年第3期43-46,共4页Hebei Electric Power

摘　　要：文章指出了采用现行超声测厚方法测量锅炉炉内受热面管壁厚存在的问题及其原因 ,并建立了一套高频超声波测量系统 ,用以测量管壁单纯金属层厚度及氧化皮厚度 。This paper points out the disadvantages of the traditional method for boiler tube thickness measuring, and the causes of the problems. Based on these, a high frequency supersonic measuring system is established, which can be used to measure both the simple metal thickness and the oxide-scale thickness. A calculation formula to determine the minimum theoretical resolution of the system is also given.

关 键 词：锅炉管壁 金属层 氧化皮厚度 高频超声波测量系统 受热部件 

分 类 号：TK223.3[动力工程及工程热物理—动力机械及工程]