热力发电2025，Vol.54Issue(10)：51-62,12.DOI:10.19666/j.rlfd.202501052
火电机组余热利用技术研究进展
Research progress on waste heat utilization technology in thermal power units
摘要
Abstract
Thermal power units,as a cornerstone of conventional electricity generation,release considerable quantities of waste heat during their operation.If not effectively harnessed,this waste heat will result in substantial energy inefficiency and exacerbate environmental challenges.Consequently,the efficient recovery and utilization of waste heat from thermal power units represents a pivotal strategy for optimizing energy use and mitigating carbon emissions.The energy-saving and carbon-reduction potential of various cycle components in thermal power units should be thoroughly explored.Conducting parameter matching to enable the efficient and comprehensive utilization of waste heat at different grades in thermal power units holds significant importance for achieving deep energy conservation and emission reductions in China's thermal power industry.A comprehensive examination of waste heat recovery in thermal power units is provided.It begins by identifying the primary sources and distinctive characteristics of waste heat.Subsequently,it delves into specific recovery methodologies and their technical principles,encompassing low-pressure turbine exhaust heat utilization,flue gas heat recovery,boiler blowdown and continuous blowdown heat recovery.For each method,the system configuration,current deployment status,economic feasibility,and environmental benefits are analyzed in detail.The strengths and limitations of these approaches are critically evaluated.Finally,the future prospects and developmental trajectories of waste heat recovery technologies in the thermal power sector are thoroughly explored and anticipated.关键词
火电机组/余热利用/低压缸乏汽/锅炉排烟Key words
thermal power units/waste heat utilization/low-pressure cylinder exhaust steam/boiler flue gas引用本文复制引用
刘伟奇,杨利,杨庆川,余小兵,马汀山,赵新山,周涛,孙鹏,王东晔,薛晨晰..火电机组余热利用技术研究进展[J].热力发电,2025,54(10):51-62,12.基金项目
国家重点研发计划项目(2022YFC3802402) （2022YFC3802402）
西安热工研究院有限公司科技项目(ZC-24-TZK53)National Key Research and Development Program(2022YFC3802402) （ZC-24-TZK53）
Science and Technology Projects of Xi'an Thermal Power Research Institute Co.,Ltd.(ZC-24-TZK53) （ZC-24-TZK53）
