2015-12-23 10:31:22

经营性冷藏库的作用，本身就是为市场经济服务的．其功能也应随着市场结构的变化而变化。冷库制冷系统运行中。
The effect of cold storage for commercial purposes is itself in the service of the market economy. Its function should also changes with the change of market structure. In the operation of the cold storage refrigeration system.
由于冷库内的空气具有一定湿度，且库房中制冷设备蒸发器表面温度通常低于库内空气的露点温度，所以当空气流过蒸发器表面时就会析出凝结水并结霜。
Because the air has a certain degree of humidity inside the refrigerator, and refrigeration equipment in air Chambers evaporator surface temperature is usually lower than the dew point temperature, so when precipitation occurs when air flows through the evaporator surface water and frost.
尤其在冷藏果蔬产品时，由于库内空气要求含湿量很高，又需要定时补充定量的室外空气换气，结霜更为严重.通常在空气相对湿度大50%，温度在一1—7℃ 左右时最容易结霜，而空气干球温度在一5—5℃范围，相对湿度 ≥85%时则结霜最为严重。
Especially in the frozen fruit and vegetable products, moisture content is very high because of the rolls air requirement, and need regular supplement quantitative outdoor air ventilation, frost is more serious. Usually the air relative humidity 50%, temperature in a 1-7 ℃ or so the easiest way to frost, and the air dry bulb temperature in a range of 5-5 ℃, relative humidity of 85% or higher, frost is most serious.

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