冷却水水质参数对板式换热器污垢特性的实验研究  

Experimental Study of Cooling Water Quality Effect on Fouling of Plate Heat Exchanger

作　　者：徐志明[1] 黄兴[1] 郭进生[1] 张仲彬[1] 

机构地区：[1]东北电力大学能源与动力工程学院,吉林吉林132012

出　　处：《工程热物理学报》2011年第4期645-647,共3页Journal of Engineering Thermophysics

基　　金：国家重点基础研究发展规划基金项目(No.2007CB206904);国家自然科学基金项目(No.51076025)

摘　　要：实验研究了松花江水浊度、铁离子(Fe^(3+))、碱度、化学需氧量(COD)等水质参数对板式换热器污垢热阻的影响。结果表明:松花江水污垢热阻类型为渐近型且没有诱导期;浊度开始变化很小,后逐渐增大;碱度和铁离子随着时间逐渐增大,达到某一值后趋于平缓;COD随时间逐渐减小。所研究的水质参数之间相互影响、互利共生,共同影响着污垢沉积量的变化。This paper is according to research some water quality parameters of Songhua River, such as turbidity, ferrous ion （Fe^3＋）, alkalinity, and chemical oxygen demand（COD）, which has an effect on the mixed fouling of plate heat exchanger（PHE）. The results showed that the fouling thermal resistance of Songhua River water has no induction period. The nmnber of turbidity varied a few at initial, then increased with time. The numbers of water alkalinity and Fe^3＋ are increased first and then varied steadily after reaching some value. The number of COD is decreased with time. All above water quality parameters have contribute to the number of fouling resistance of PHE.

关 键 词：污垢热阻 水质参数 板式换热器 

分 类 号：TK124[动力工程及工程热物理—工程热物理]