220 t/h CFB锅炉提质增效改造技术应用
向阳^1，2，张文杰^1，2，邓启刚^1，2，鲁佳易^1，2，韦立校^1，2，黄敏^1，2
（1. 清洁燃烧与烟气净化四川省重点实验室，四川 成都 611731；2. 东方电气集团东方锅炉股份有限公司，四川 自贡 643001）
摘要： 随着“双碳”目标的提出，国内大批中小型燃煤热电联产循环流化床（CFB） 锅炉机组的提质增效势在必行。
通过分析一220 t/h 高温高压CFB 锅炉运行中存在的问题，提出了相应的提质增效技术方案。通过入炉燃料粒度优化、
旋风分离器改造、炉内受热面改造、深度分级燃烧改造等技改措施的实施，使锅炉运行实现了提质增效。
关键词： CFB 锅炉；NO_x；分级燃烧；床温；分离效率；粒度；布风板
中图分类号： TK223.23      文献标志码： A      文章编号： 2095-0802-(2023)01-0188-03
Application of Quality-improvement and Efficiency-increasing Technology for 220 t/h
CFB Boilers
XIANG Yang^1,2, ZHANG Wenjie^1,2, DENG Qigang^1,2, LU Jiayi^1,2, WEI Lixiao^1,2, HUANG Min^1,2
(1. Clean Combustion and Flue Gas Purification Key Laboratory of Sichuan Province, Chengdu 611731, Sichuan, China;
2. Dongfang Boiler Co., Ltd., Dongfang Electric Corporation, Zigong 643001, Sichuan, China)
Abstract: With the proposal of carbon peaking and carbon neutrality goals, it is imperative to improve the quality and efficiency
of a large number of small and medium coal-fired circulating fluidized bed (CFB) boiler units of cogeneration in China. By analyzing
the problems existing in a 220 t/h high-temperature and high-pressure CFB boiler, this paper put forward the corresponding
technical scheme to improving quality and efficiency. Through implementing the technical transformation measures such as
optimizing the coal particle size, transformation of the cyclone separator, adjusting the heating surface in the boiler and adopting
the deep staged combustion, the purpose of improving quality and efficiency has been realized.

Key words: CFB boiler; NO_x; fractional combustion; bed temperature; separation efficiency; particle size; air distributor