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制冷快报
25 天
一文了解制冷剂的分类、安全等级、编号方法
当前,能当作制冷剂的物质有80多种,最常见的制冷剂有氟利昂(包括:R22、R134a、R407c、R410a、R32等)、氨(NH3)、水(H2O)、二氧化碳(CO2)、少数碳氢化合物(如:R290、R600a)。 1、制冷剂的分类 根据制冷剂在标准大气压力(100kPa)条件下蒸发温度ts的高低 ...
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