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闭式冷却塔选型方法及步骤

作者:hengke来源:河北华盛节能设备有限公司时间:2015-12-11 12:07 访问量:次
描述:冷却塔的制冷量要根据使用地的湿球温度、相对湿度、空气流动速度、喷淋水量、冷却介质粘度系数、换热管热阻等参数进行繁琐的热工计算。一般选型时用户可按以下简单方式进行,根据计算的制冷量(Kcal/h),选择相应制冷能力冷却塔.
 闭式冷却塔

 BISHILENGQUETAXUANXINGFANGFAJIBUZHOU

闭式冷却塔(也叫蒸发式空冷器或密闭式冷却塔)
是将管式热换器置于塔内,通过流通的空气、喷淋水与循环水的热交换保证降温效果。由于是闭式循环,其能够保证水质不受污染,很好的保护了主设备的高效运行,提高了使用寿命。外界气温较低时,可以停掉喷淋水系统,起到节水效果。随着国家节能减排政策的实施和水资源的日益匮乏,近几年密闭式冷却塔在钢铁冶金、电力电子、机械加工、空调系统等行业得到了广泛的应用。
 
方法/步骤
冷却塔的制冷量要根据使用地的湿球温度、相对湿度、空气流动速度、喷淋水量、冷却介质粘度系数、换热管热阻等参数进行繁琐的热工计算。一般选型时用户可按以下简单方式进行,根据计算的制冷量(Kcal/h),选择相应制冷能力冷却塔。
☆根据冷却介质流量、温差计算 Qs=cm△t
Qs-冷却介质散热量,单位Kcal/h; 
C-冷却介质比热容,单位Kcal(kg·℃),水的比热容为1Kcal/kg·℃;
m-冷却介质质量,也即流量,单位为kg/h; 
△t-冷却介质进、出口温差,单位为k或℃。
☆根据设备无效功率计算 Qs=额定功率(Kw)*比例*860(Kcal/(h·kw))
☆根据淬火件产量计算 Qs=淬火件产量(kg/h)*淬火件比热容*淬火件温差。
 
河北华盛节能设备有限公司是大型玻璃钢冷却塔,全钢冷却塔,玻璃钢净化塔,玻璃钢脱硫塔等系列产品专业制造商.常年低价供应各种规格型号冷却塔价格优惠,厂家直销,咨询热线:18732818066


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