摘要
回转式空气预热器漏风率较高是一直困扰各大发电企业的难题,它严重影响着机组的经济运行。哈尔滨兴隆锅炉有限公司采用一种全新的漏风控制技术——间隙自补偿漏风控制系统,在湖北能源集团鄂州发电有限公司#3机组大修期间对空气预热器进行了密封改造。改造后,机组在满负荷及变负荷运行的情况下,漏风率长期保持在4%~5%,保证了机组的经济运行。
The larger air leakage rate of the rotary air preheater is difficulty troubling many large power generation enterprises,and it influences on unit economic operation seriously. Using a new air leakage control technology —— the gap self-compensating air leakage control system,the Harbin Xinglong Boiler Company Limited implemented the air preheater seal reformation of unit No. 3 in Ezhou Power Generation Company limited of Hubei Energy Group during the unit overhaul period. After reformation,under unit full load and variable load conditions,the air leakage rate remained within 4% ~ 5% for long term,and the unit economic operation was ensured.
出处
《华电技术》
CAS
2014年第8期21-23,77,共3页
HUADIAN TECHNOLOGY
关键词
空气预热器
密封改造
间隙自补偿漏风控制系统
效果
效益
air preheater
seal reformation
gap self-compensating air leakage control system
effect
benefit
