锅炉排烟余热回收利用的技术方案选择探讨
王金旺
（1. 上海碳索能源服务股份有限公司，上海 201108；2. 福建远致环保科技有限公司，福建 厦门 361006）
摘要： 燃煤火力发电厂应用锅炉排烟余热回收利用的节能技术时，根据实际情况，充分考虑现场实际条件，选择最
适合的技术方案。对于已建成的燃煤发电厂，采用余热品质逐级利用的两级节能系统技术方案，可提高锅炉效率约
1.5%；对于新建的燃煤发电厂，采用余热品质逐级利用的烟气旁路两级节能系统技术方案，不仅节省投资成本，而且可
提高锅炉效率约3.0%。
关键词： 燃煤火力发电厂；锅炉排烟；烟气余热；回收利用
中图分类号： TK11⁺5     文献标志码： A     文章编号： 2095-0802-(2020)09-0062-04
Discussion on Technical Scheme Selection of Waste Heat Recovery and Utilization of Boiler
Exhaust Gas
WANG Jinwang
(1. Shanghai Tansuo energy services Co., Ltd., Shanghai 201108, China; 2. Fujian ZEST Environmental Protection Technology
Co., Ltd., Xiamen 361006, Fujian, China)
Abstract: When the energy-saving technology of waste heat recovery and utilization of boiler exhaust gas is applied in coal-fired
power plant, the most suitable technical scheme is selected according to the actual situation and fully considering the actual
conditions on site. For the built coal-fired power plant, the boiler efficiency can be increased by 1.5% by adopting the two-stage
energy-saving system technology scheme of waste heat quality step-by-step utilization; for the newly-built coal-fired power plant,
the technical scheme of flue gas bypass two-stage energy-saving system with waste heat quality step-by-step utilization can not
only save the investment cost, but also improve the boiler efficiency by about 3.0%.

 Key words: coal-fired power plant; boiler exhaust gas; waste heat of flue gas; recovery and utilization