烟气余热深度回收技术路线对比分析  

Comparative Analysis of Technical Routes for Deep Recovery of Flue Gas Waste Heat

作　　者：宋永明 张士平 张蓉 SONG Yongming;ZHANG Shiping;ZHANG Rong

机构地区：[1]北京热力市政工程建设有限公司,北京102600 [2]北京顺政大龙供热有限公司,北京101399 [3]中国市政工程华北设计研究总院有限公司第六设计研究院,天津300381

出　　处：《煤气与热力》2025年第3期15-17,共3页Gas & Heat

摘　　要：结合燃煤锅炉房煤改气改造工程实例,对烟气换热装置(分别采用间壁式换热器、喷淋塔)+直燃型吸收式热泵的烟气余热深度回收技术方案进行介绍,测试燃气锅炉热效率、热泵系统制热性能系数。燃气锅炉热效率在95%以上,热泵系统制热性能系数在1.5及以上,节能效果理想。与间壁式换热器相比,烟气换热装置采用喷淋塔时热泵系统制热性能系数更高。烟气换热装置推荐采用喷淋塔。Combined with the example of coal-to-gas transformation project in a coal-fired boiler room,the technical scheme of flue gas waste heat deep recovery of flue gas heat exchange device(using surface-type heat exchanger and spray tower respectively)+direct-fired absorption heat pump is introduced,and the thermal efficiency of gas boiler and heating perfor-mance coefficient of heat pump system are tested.The thermal efficiency of the gas boiler is over 95%,and the heating performance coefficient of heat pump systems is 1.5 or above,with ideal energy-saving effects.Compared with the surface-type heat exchanger,the heating performance coefficient of the heat pump system is higher when the flue gas heat exchange device adopts a spray tower.It is recommended to use a spray tower for the flue gas heat exchange device.

关 键 词：烟气余热深度回收 烟气换热装置 直燃型吸收式热泵 

分 类 号：TU995.7[建筑科学—供热、供燃气、通风及空调工程]