1000 MW机组空预器防堵灰改造项目的技术经济性分析  

Technical and Economic Analysis of Ash Blockage Prevention Retrofit Project for Air Preheater of 1000MW Unit

作　　者：吴志祥[1] WU Zhan-xiang(Anhui Anqing Wanjing Power Generation Co.,Ltd.)

机构地区：[1]安徽安庆皖江发电有限责任公司

出　　处：《电站系统工程》2020年第1期37-41,共5页Power System Engineering

摘　　要：为了分析1000 MW机组空预器防堵灰改造项目的技术经济性,以某厂1000 MW机组为对象,比较了三种空预器防堵灰技术的优缺点,为了彻底解决堵灰问题选择了风量分切防堵灰技术,风量分切技术是首次在东方锅炉1000 MW机组上应用,此改造项目投资640万元,每年可节约成本437万元,通过静态投资回收期法分析,约1.5年就可以收回投资,项目可行。In order to analyze the technical economy of the retrofit project of air preheater anti-blocking for 1000 MW unit,the advantages and disadvantages of three kinds of anti-blocking technology for air preheater are compared. In order to thoroughly solve the problem of ash blocking, the air volume slitting technology is chosen. It is the first time that air volume slitting technology is applied in 1000 MW unit. The retrofit project invests 6.4 million yuan, but the investment is not enough. The annual cost can be saved by 4.37 million yuan. Through the analysis of static payback period method,the investment can be recovered in about 1.5 years, far less than 10 years, and the project is feasible.

关 键 词：空预器 风量分切 防堵灰改造 技术经济性 静态投资回收期法 

分 类 号：TK223.34[动力工程及工程热物理—动力机械及工程]