Characteristics of cooling water fouling in a heat exchange system
Characteristics of cooling water fouling in a heat exchange system
复制标题
换热系统冷却水结垢的特点
DOI：
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发表时间：
2008
期刊：
影响因子：
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通讯作者：
Dong
中科院分区：
文献类型：
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作者：
Sun;S. Suh;Dong
在实验室自来水和人工水换热系统中，研究了物理水处理方法在防止和控制受热面污垢堆积方面的有效性。为研究结垢特性，新建了板式换热实验装置，冷却水和热水反向流动形成逆流换热器。利用得到的污垢阻力分析了物理水处理对污垢缓解的影响。此外，还测定了水的表面张力和pH值。本研究比较了换热系统中冷却水在不同入口速度条件下的结垢特性，并对不同的降垢方法进行了比较。在速度为0.5m/S的电极装置存在下，污垢阻力比没有电极装置时降低了79%。
This study investigated the efficiency of the physical water treatment method in preventing and controlling fouling accumulation on heat transfer surfaces in a laboratory heat exchange system with tap and artificial water. To investigate the fouling characteristics, an experimental test facility with a plate type heat exchange system was newly built, where cooling and hot water moved in opposite directions forming a counter-flow heat exchanger. The obtained fouling resistances were used to analyze the effects of the physical water treatment on fouling mitigation. Furthermore, the surface tension and pH values of water were also measured. This study compared the fouling characteristics of cooling water in the heat exchange system with and without the mitigation methods for various inlet velocities. In the presence of the electrode devices with a velocity of 0.5m/s, the fouling resistance was reduced by 79% compared to that in the absence of electrode devices.