污垢对蒸发式冷凝器性能的影响  

Influence of Fouling on Performance of Evaporative Condenser

作　　者：王志远[1] 田艳丽[2] 付卫钢 刘岩 

机构地区：[1]河南科技大学车辆与动力工程学院,河南洛阳471023 [2]河南科技大学土木工程学院,河南洛阳471023 [3]洛阳隆华传热科技股份有限公司,河南洛阳471003

出　　处：《河南科技大学学报（自然科学版）》2014年第3期22-26,5-6,共5页Journal of Henan University of Science And Technology:Natural Science

基　　金：国家自然科学基金项目(50906021)

摘　　要：污垢是影响蒸发式冷凝器效率的主要因素之一。本文根据文献中污垢特性模型,利用实验数据,分析污垢层厚度对排热量的影响,通过计算可知:污垢导致设备排热量降低最大可达75%;同时分析在污垢条件下,湿球温度对换热性能增长的影响程度,研究结果表明:湿球温度降低引起的换热效率增长趋势,在垢层厚度增加的情况下减缓较快。Fouling is one of the major factors which decreases the efficiency of the evaporative condensor. Based on the fouling model in the reference and experiment data,this paper analyzed the effect of the thickness of the fouling layer on the amount of energy that expels. The results show that dirt can at most decrease the efficiency of heat-removal equipment by 75%. The effect on the heat-exchange performance of the temperature variation of the wetbulb was analyzed. The result shows that the increase rate of heat-exchange efficiency caused by the drop in the tempreture of wetbulb is decreased faster with the increase of the fouling thickness.

关 键 词：蒸发式冷凝器 污垢 性能 排热量 

分 类 号：TB65[一般工业技术—制冷工程]