技术中心

【英文篇名】 Experiment of fouling growth characteristics in sewage heat exchangers 【作者中文名】 李鑫; 孙德兴; 张承虎; 吴荣华; 【作者英文名】 Li Xin; Sun Dexing; Zhang Chenghu and Wu Ronghua Harbin Institute of Technology; Harbin; China; 【作者单位】 哈尔滨工业大学; 【文献出处】 暖通空调, Heating Ventilating 污垢生长; 污垢热阻; 流速; 【英文关键词】 sewage heat exchanger; fouling growth; fouling heat resistance; velocity; 【摘要】 介绍了污垢生长监测方法,并以哈尔滨望江宾馆和北京悦都酒店为测试对象,对换热器内污垢生长作了实时监测,得出了污垢热阻随时间的变化规律、污垢的平衡厚度和换热器热阻与流速的关系以及换热器结垢前后总传热系数的比。 【英文摘要】 Presents the inspecting methods of fouling growth and inspects in real time the growth of fouling in the sewage heat exchangers in Harbin Wangjiang hotel and Beijing Yuedu hotel.Obtains the variation pattern of the fouling heat resistance with time,the relations between the balance thickness of fouling and the velocity and between the heat resistance of the heat exchanger and the velocity,and a ratio of the total heat transfer coefficient before fouling forming to that after fouling forming.