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卧式冷凝器与立式冷凝器制冷效果的不同特点
加入时间:2016-05-20 作者:选择作者 【关闭本页

卧式冷凝器与立式冷凝器制冷效果的不同特点:

冷凝器的种类很多一般使用最多的是立式冷凝器和卧式冷凝器两种,今天针对这两种设备进行一下简单的对比;卧式冷凝器和立式冷凝器二者除安放位置和水的分配不同外,水的温升和用水量也不一样。立式冷凝器的冷却水是沿着重力沿管内壁下流,只能是单行程,故要得到足够大的传热系数K,就必须使用大量的水。卧式冷凝器是用泵将冷却水压送到冷却管内,故可制成多行程式冷凝器,且冷却水可以得到足够大的流速和温升(Δt=4~6℃)。所以卧式冷凝器用少量的冷却水就可以得到足够大的K值。但过分地加大流速,传热系数K值增大不多,而冷却水泵的功耗却显著增加,所以氨卧式冷凝器的冷却水流速一般取1m/s左右为宜,氟利昂卧式冷凝器的冷却水流速大多采用1.5~2m/s。卧式与立式冷凝器制冷效果的不同特点

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