冷却水污垢及其对冷却器换热的影响

Foul of Cooling Water and Its Influence on the Heat Exchanging of Cooler

分析了冷却器的结垢机理 ,提出了冷却器污垢层、污垢热阻随运行时间的规律 ,以及污垢热阻与换热系数、换热面积的关系式 ,并通过算例阐述了污垢热阻对冷却器的影响程度 ,进而定性地分析了污垢热阻对空分装置的影响。

Fouling mechanism of cooler is analyzed,and regulation of fouling products and fouling resistance of cooler with the running period,the relate formula among the fouling resistance,heat exchanging coefficient and heat exchanging area are given.Influence degree of the fouling resistance to the cooler is explained by means of calculating,and then the influence of the fouling resistance to the air separation plant is qualitative analyzed.