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%。
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%.
作者
王金旺
WANG Jinwang(Shanghai Tansuo energy services Co.,Ltd.,Shanghai 201108,China;Fujian ZEST Environmental Protection Technology Co.,Ltd.,Xiamen 361006,Fujian,China)
出处
《能源与节能》
2020年第9期62-65,137,共5页
Energy and Energy Conservation
关键词
燃煤火力发电厂
锅炉排烟
烟气余热
回收利用
coal-fired power plant
boiler exhaust gas
waste heat of flue gas
recovery and utilization
