电厂空预器吹灰改造与研究

空预器作为我国大型火力发电厂重要组成部分,其高效、稳定的运行对于火电机组而言具有十分重大的意义.当前,我国大部分火电机组均存在空预器堵塞现象,严重影响到锅炉安全、经济运行,为此,本文基于宝庆发电公司660MW机组三分仓容克氏空预器吹灰改造展开研究,对变工况下空预器吹灰改造前后差压变化做出对比分析,以及对定工况下空预器烟...

Transformation and Research on Soot Blowing of Air Preheater in Power Plant

As an important part of large thermal power plants in China,air preheater's efficient and stable operation is of great significance for thermal power units.At present,most thermal power units in China are of air preheater blockage,which seriously affects the safety and economic operation of boilers.Therefore,based on the research on the soot blowing transformation of the Ljungstrom trisector air preheater for 660 MW unit of Baoqing Power Plant,this article makes a comparative analysis on the change of differential pressure before and after soot blowing transformation of air preheater under variable working conditions,and studies the flue gas side differential pressure of air preheater with soot blowing time variation under set con⁃dition,verifies the effectiveness of soot blowing transformation of air preheater,and ensures the efficient and reliable operation of the unit.