防腐层加工工艺对冷凝换热器的影响  

Effect of Process Technology for Anticorrosion Coating on Condensing Heat Exchanger

作　　者：李丽萍[1] 王随林[1] 刘贵昌[2] 艾效逸[1] 傅忠诚[1] 潘树源[1] 

机构地区：[1]北京建筑工程学院城建系,北京100044 [2]大连理工大学化工学院,辽宁大连116012

出　　处：《煤气与热力》2005年第8期16-19,共4页Gas & Heat

基　　金：北京市自然科学基金资助项目(3023011)

摘　　要：以非晶态镍铜磷复合化学镀层作为防腐镀层,对采用先镀后胀再镀和先胀后镀2种加工工艺的肋片管式冷凝换热器进行了换热性能实验研究。采用先镀后胀再镀加工工艺,不仅解决了肋片管式冷凝换热器肋基处易腐蚀问题,而且明显降低了肋基处肋片与肋管的接触热阻,增强了换热器的换热性能。根据实验研究结果拟合出了肋片管式冷凝换热器烟气强迫对流凝结换热的实验关联式。Applying amorphous Ni-Cu-P composite electroless plating as anticorrosion plating, the heat transfer performance of the fin-tube condensing heat exchanger processed by the plating-expandingplating technology and the expanding-plating technology is experimentally studied. The application of the first technology can resolve the problem that the fin-root is easy to corrode, effectively reduce the contact heat resistance between the fin-root and the tube, and enhance the heat transfer performance of the heat exchanger. The experimental correlations for the forced convection-condensation heat transfer of flue gas in the heat exchanger are obtained by the experimental study result.

关 键 词：肋片管式冷凝换热器 冷凝式燃气热水器 防腐 加工工艺 

分 类 号：TU995[建筑科学—供热、供燃气、通风及空调工程]