火电厂锅炉管道受热面腐蚀速度在线检测装置的研制及应用  

Development and Application of Online Detection Device of Corrosion Rate for Heating Surface on Boiler Pipe in Thermal Power Plant

作　　者：孙利强[1] 樊文明 SUN Liqiang;FAN Wenming(Inner Mongolia Power Research Institute,Hohhot010020,China;Inner Mongolia Jinglong Electric Power Co.,Ltd.,Ulanqab012199,China)

机构地区：[1]内蒙古电力科学研究院,呼和浩特010020 [2]内蒙古京隆发电有限责任公司,内蒙古乌兰察布012199

出　　处：《内蒙古电力技术》2018年第6期74-77,85,共5页Inner Mongolia Electric Power

摘　　要：目前火电厂锅炉管道受热面腐蚀监测方法只限于设备停运期间的监督检查或事故发生后的原因分析,无法获得生产过程中受热面腐蚀速度的即时值,为此研制出一种腐蚀速度在线检测装置,该装置通过对锅炉管道内部水汽介质中溶解氢质量浓度进行连续测量,同时采集其他相关数据,经逻辑计算后得到受热面管道腐蚀速度。经过实际应用测试,证明该装置可以对锅炉管道受热面腐蚀状况进行实时监测,对机组的安全经济运行起到监督指导作用。At present,the monitoring methods for corrosion of heating surface of boiler pipes in thermal power plants are limited to the supervision and inspection during equipment shutdown or reason analysis after the accident,can not obtain the instant value of corrosion rate of heating surface in the production process,and a corrosion rate online detection device is developed,through which the mass concentration of dissolved hydrogen in the water vapor medium inside the boiler pipeline is continuously measured.Other relevant data are collected and the corrosion rate of pipeline on heating surface is obtained by logical calculation.It has been proved by practical application test.The device can monitor the corrosion of heating surface of boiler pipeline in real time,helping to supervise and guide the safe and economic operation of the unit.

关 键 词：火电厂 锅炉管道 腐蚀速度 在线监测 溶解氢 

分 类 号：TM621.8[电气工程—电力系统及自动化]