超市冷柜制冷剂的使用特点

日期:2018-03-22 / 人气:

超市冷柜

  很多超市冷柜的制冷剂的有着不同特点,制冷剂的最大优点是其对臭氧层的破坏潜能为零,能满足环保要求。但从另一方面来看,制冷剂的分子小、分子量轻、渗透能力强,又极易吸水,与矿物油不相溶。因此,制冷剂量对压缩机内的洁净度要求更高。同时利用R134a制冷矿物油不相溶。

  Many supermarket freezers have different characteristics of refrigerant, refrigerant its the biggest advantage is the destruction of the ozone layer potential is zero, can satisfy the requirements of environmental protection. But on the other hand, the refrigerant of small molecules, molecular weight is light, strong penetration, and extremely easy bibulous, do not mix with mineral oil. Therefore, refrigeration dose within the compressor on cleanliness requirements are higher. At the same time using R134a has a refrigeration mineral oil do not mix.

  因此,R134a制冷剂量对压缩机内的洁净度要求更高。超市冷柜同时利用R134a制冷剂的无氟还必须用酯类或新型合成油多元醇润滑油。R134a对金属件有腐蚀性,为此无氟机器的压缩机内部零件表面均做了特殊处理。而且R134a标准沸点、凝固点、汽化潜热较高,其制冷量低于R12制冷剂10%左右。目前,无氟柜子在使用与推广中还存着一个重要的维修保障问题。由于市场滞后原因,不仅专用的制冷剂、冷冻油、润滑油、干燥过滤器和压缩机配件较少,价格贵,同时无氟对维修设备及工艺要求也很高。

  As a result, everything refrigeration dose within the compressor on cleanliness requirements higher. Supermarket freezers using R134a has a refrigerant cfc-free, at the same time also must use ester or new synthetic oil polyols lubricating oil. Everything has corrosive to metal parts, therefore no machinery of the surface of the compressor internal parts are made special treatment. But everything standard boiling point, freezing point and latent heat of vaporization is higher, the refrigerating capacity is about 10% below the refrigerant R12. At present, in the use and promotion of fluorine-free cabinet still an important problem of maintenance support. Because market lags behind, is not only dedicated refrigerant, refrigeration oil, lubricating oil, filter drier and compressor parts, less expensive, at the same time of fluorine-free of maintenance equipment and process requirements are very high.

  采用R134a制冷的无氟机器,对系统管道中的油、水、杂质等要求较高,是它的固有弱点。同时它对专用密封材材料、干燥处理、维修工具的要求,也是丁般维修店的技术设备难以胜任的。不可否认,R134a制冷剂在当前仍是一种比较理想的替代品,但在不远的将来,一定会在它的基础上研制出既无公害,又无负面影响,适应全方位替代的制冷剂,广广泛应用于绿色环保柜中。

  By everything of fluorine-free refrigeration machine, the system of the pipeline oil, water, impurities, such as demanding, is its inherent weaknesses. At the same time it to the dedicated seal material material, dry processing, maintenance tools, and butyl repair shop of technical equipment is difficult to do. There is no denying the fact that everything refrigerants in the current is still a kind of ideal alternative, but in the near future, will be on the basis of it to develop pollution-free, and have no negative effects, to adapt to the omni-directional alternative refrigerants, are widely used in the case of green environmental protection.

作者:admin


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