二氧化硅与铁细菌混合污垢的趋热性分析

Abstract

为了研究温度对于二氧化硅和铁细菌混合污垢的影响，明确二氧化硅和铁细菌混合污垢在不同的热循环温度和冷循环水浴温度下的结垢特性，利用热阻法和称重法研究了不同循环工质温度和冷却水温度下二氧化硅和铁细菌混合污垢的结垢情况。结果表明，混合污垢热阻受热循环入口温度与冷循环水浴入口温度影响明显，并呈一定规律变化；增加热循环入口温度，混合污垢热阻增量减小，冷循环入口温度与混合污垢增量也呈正相关关系。 In order to investigate the effects of temperature to composite fouling composed of SiO2 and IB, and learn about the mechanism of composite fouling in different temperatures of hot fluid loop and cool fluid loop, experiments based on thermal resistance method and weighing method were carried out in different cycle entrance temperatures and cooling entrance temperatures. It is showed that the thermal resistance of composite fouling, which changes in a regular way, is evidently affected by the entrance temperatures of hot fluid loop and cool fluid loop. Increasing the inlet temperature of the thermal cycle, the increase of the thermal resistance of the mixed fouling decreases, and the inlet temperature of the cold cycle is also positively correlated with the increment of the mixed fouling.