超超临界锅炉水冷壁超温和汽温偏差大问题的分析和处理  

Cause Analysis and Treatment of Over-Temperature on Water-Wall and High Temperature-Deviation on Superheat Steam in an Ultra-Supercritical Boiler

作　　者：车刚 崔辉 CHE Gang;CUI Hui(State Grid Shandong Electric Power Research Institute,Jinan 250002,China;Shandong Zhongshi Yitong Group Co.,Ltd.,Jinan 250002,China)

机构地区：[1]国网山东省电力公司电力科学研究院,山东济南250002 [2]山东中实易通集团有限公司,山东济南250002

出　　处：《锅炉技术》2023年第4期70-74,共5页Boiler Technology

摘　　要：为了解决安徽某电厂1000 MW机组超超临界锅炉在试运期间出现的水冷壁温度高、主蒸汽温度低且两侧偏差较大的问题,通过试验研究,采取了差异化调整二次风喷口水平摆角的方法,最终将水冷壁温度、主蒸汽温度及偏差调整到锅炉正常运行的允许范围之内,为其他机组类似问题的处理提供了新的思路。During commissioning period,the problem of over-temperature on water-wall and high temperature-deviation and low-temperature on superheat steam appeared in a 1000 MW ultra-supercritical boiler in Anhui province.In order to solve it,the method of differentiating the direction and angle of the secondary burner based on test research was adopted.The temperature and temperature-deviation of water-wall and superheat steam were adjusted to the allowable range of normal operation.This method provides new ideas for similar problems of other units.

关 键 词：水冷壁温 汽温 摆角 调试 超超临界 

分 类 号：TK229.2[动力工程及工程热物理—动力机械及工程]