节能2025，Vol.44Issue(11)：34-38,5.DOI:10.3969/j.issn.1004-7948.2025.11.008
柔性接触式密封技术在锅炉空预器漏风控制中的应用研究
Research on the application of flexible contact sealing technology in air leakage control of boiler air preheaters
CHEN Boming 1WAN Mao 1JIANG Qinghu 1HE Jinwei1
作者信息
摘要
Abstract
Aiming at the problems of severe air leakage and frequent blockage of the air preheater in the 600 MW supercritical coal-fired unit boiler,the application effect of flexible contact sealing technology is studied.It adopts components such as self-lubricating alloy sliders,Inconel X-750 special springs and double-layer nested rotating shafts to achieve gapless dynamic sealing.The results show that after the transformation,the air leakage rate has dropped below 5.2%,with a reduction of 47.3%～49.5%.The annual electricity consumption of wind turbines is saved by 1 431 kW and 20 800 t of standard coal.The comprehensive economic benefit reached 26.147 million yuan,and the static investment payback period was only 5.3 months.Long-term tracking shows that the system operates stably with an annual wear of 0.3 mm to 0.4 mm,verifying the obvious advantages of this technology in energy-saving and consumption reduction,reliability.关键词
柔性接触式密封/空预器/漏风控制/耐磨材料/锅炉效率/节能Key words
flexible contact sealing/air preheater/air leakage control/wear-resistant material/boiler efficiency/energy-saving分类
能源科技引用本文复制引用
CHEN Boming,WAN Mao,JIANG Qinghu,HE Jinwei..柔性接触式密封技术在锅炉空预器漏风控制中的应用研究[J].节能,2025,44(11):34-38,5.
