燃气锅炉烟气余热回收系统
Flue gas waste heat recovery system for gasfired boilers
摘要：
通过对各类燃气锅炉烟气余热换热系统的分析，总结了烟气余热回收需解决的问题以及各类换热系统的优缺点和适用范围。基于对热量回收和热量利用匹配问题的考虑，提出了一种新型余热回收系统。该系统实现了烟气温度的梯级利用，充分回收了烟气热量。
关键词：烟气余热吸收式热泵热管燃气锅炉直接接触式换热
Abstract：
Analyses the characteristics of different kinds of gasfired boilers and waste heat transfer systems, summarizes the problems of flue gas waste heat recovery as well as the advantages and disadvantages of different kinds of heat transfer systems and their application scopes. Considering the balance between the heat recovery and the heat utilization, presents a new waste heat recovery system. The new system achieves the cascade utilization of the flue gas temperature and fully recovers the flue gas heat.
Keywords:flue gas waste heat, absorption heat pump, heat pipe, gasfired boiler, directcontact heat transfer