Air cooler as a common air conditioning evaporator of refrigeration units, its selection is appropriate, directly related to the efficiency of cooling system software. As we all know, the air cooler will choose different fin intervals according to the required natural environment temperature. For the more common air cooler, the fin spacing is 4mm, 4.5mm, 4.5mm,6-8mm,10mm, 12mm, and there is also a variable blade spacing between front and back. Small fin spacing, suitable for low temperature environment; The smaller the cold storage temperature, the more fin spacing is required. If the choice is not scientific, the fin frosting speed is faster, it will soon block the safe channel of the wind, the cold storage cooling is difficult, the refrigeration compressor can not give full play to the high efficiency, causing the electricity consumption of the refrigeration unit to increase.

According to engineering experience,- general 0°C~20°C living environment, such as workshop air conditioning, cool storage, cold storage hall, fresh storage, air conditioning cold storage, Cui ripe storage, etc., the selection of 4mm or 4.5mm distance fan; -16°C- 25°C living environment, such as ultra-low temperature freezer, low temperature logistics warehouse, choose a distance of 6mm~8mm air cooler; -25°C- 35°C quick-frozen cold storage, generally choose the sheet distance of 10mm and 12mm air cooler, if the air humidity of frozen goods is high, will choose variable sheet distance fan, the supply side fin interval can reach 16mm. Also there are some places, it is not can choose according to the temperature of pure air cooler fin spacing, such as meat, vegetables, rapid quenching, PaiSuan, despite the cold room temperature in 0 ° C or so commonly, due to the high stock temperature, cooling speed faster, goods air humidity is big, if choose from 4 mm or 4.5 mm of cooling fan, also doesn't fit, must use a piece of 8 m M or even 10mm air cooler can be used. There are also similar storage garlic, apple and other fruits and vegetables preservation cold storage, the appropriate storage temperature - at -2°C, such as storage temperature is less than 0°C refrigeration or air conditioning cold storage, also want to choose a distance of not less than 8mm air cooler, it is not easy to quickly frost lead to duct obstruction, power consumption increase.