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How to choose the cooling fan spacing during the construction of cold storage

Update:2022-05-18
Summary:Air coolers are commonly used evaporators for ice machines and cold storage, and their selection directly affects the efficiency of the refrigeration ...
Air coolers are commonly used evaporators for ice machines and cold storage, and their selection directly affects the efficiency of the refrigeration system. As we all know, the air cooler will use different fin spacings according to the required ambient temperature.Our common air coolers have fin pitches of 4mm, 4.5mm, 6-8mm, 10mm, 12mm, as well as the front and back variable blade pitch. The fin spacing is small, suitable for high temperature environments; the lower the cold storage temperature, the greater the fin spacing required.

If the selection is unreasonable, the fins will quickly frost, which will quickly block the air passage, the cold storage will be difficult to cool down, and the compressor efficiency will not be used, resulting in an increase in the power consumption of the refrigeration system.According to cold storage engineering experience, generally 0℃-20℃ environment, such as workshop air-conditioning, shady storage, cold storage hall, fresh-keeping storage, air conditioning storage, ripening storage.

Choose air coolers with a pitch of 4mm or 4.5mm-16℃~-25℃ environment, such as low-temperature freezing and cold storage, low-temperature logistics warehouse, choose air coolers with a sheet spacing of 6mm-8mm; for quick-freezing warehouses at -25℃~-35℃, generally choose the sheet spacing of 10mm and 12mm The air cooler, the humidity of quick-frozen goods is high, and the variable fin-pitch air cooler will be selected, and the fin spacing on the air inlet side can reach 16mm.

However, there portable freezer manufacturers are some occasions where the air cooler fin spacing cannot be selected solely based on the temperature, such as rapid pre-cooling of meat and vegetables, and acid discharge. Although the temperature of the cold room is generally set above 0°C, because the incoming temperature is high and the temperature is lowered With high speed and high humidity of the cargo, if the air cooler with a sheet spacing of 4mm or 4.5mm is used, it is not suitable. The air cooler with a sheet spacing of 8mm or even 10mm must be used.
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