接触式烟气-水冷凝换热器的热工计算方法
Thermal calculation method for direct-contact flue-gas-water condensation heat exchangers
摘要：
对接触式烟气-水冷凝换热器的换热效率进行了分析，充分考虑影响换热效率的各种因素，包括喷嘴雾化粒径和换热器高度等，给出了接触式烟气-水冷凝换热器的热工计算方法，并制作了线算图。采用所提出的热工计算方法，对具体示范工程烟气-水冷凝换热器进行了设计，供暖季现场实测数据表明，烟气-水冷凝换热器的换热性能达到了预期目标。
关键词：接触式烟气-水冷凝换热器,换热效率,热工计算,雾化粒径,传热单元数,换热器高度
Abstract：
Analyses the heat exchange efficiency of direct-contact flue-gas-water condensation heat exchangers, considering various influencing factors such as the atomized particle size from nozzle and the height of heat exchanger, presents a thermal calculation method, and plots an alignment chart. Applies this new calculation method to a demonstration project design.The measured data in heating season show that the heat exchange performance meets design requirement.
Keywords:direct-contactflue-gas-watercondensationheatexchanger,heatexchangeefficiency,thermalcalculation,atomizedparticlesize,numberoftransferunit（NTU）,heightofheatexchanger