冷却效果和空气温度有着密切的关系，制冷剂温度远大于空气温度方能有效发挥作用，液态制冷剂由高压部分经膨胀阀进入低压部分则可达到沸点二蒸发，(是液态到气态的转换)，同时吸收周围环境中的热量。但是在高温季节或是降温负荷过大时都不能达到制冷效果。为节省用水，配有水冷却塔和水循环设备，反复使用冷却水。冷凝吸热的效能决定于冷水与制冷别管道的接触面积、水温和流速。
因此在冷库门运行过程中，需要添加配件来保证冷库门运行时对环境的影响，同时避免库内低温对冷库门的物理状态和功能造成负面影响，保障运行状态和功能的稳定性。
The specifications, models and functions of the cold storage doors have been accurately calculated during the construction of the cold storage, so as to ensure that the cold storage has a good thermal insulation effect after completion. The fittings used in the manufacture of cold storage doors play an unsuccessful role in the operation of cold storage doors.
Cooling effect is closely related to air temperature. Refrigerant temperature is much higher than air temperature. Liquid refrigerant can evaporate at boiling point two when it enters the low-pressure part through expansion valve from the high-pressure part, and absorb heat in the surrounding environment at the same time. But in the high temperature season or when the cooling load is too large, it can not achieve the best cooling effect. In order to save water, water cooling towers and water circulation equipment are equipped, and cooling water is repeatedly used. The efficiency of condensation and heat absorption depends on the contact area, water temperature and flow rate between cold water and other refrigeration pipes.
Therefore, in the process of cold storage door operation, it is necessary to add accessories to ensure the impact of cold storage door operation on the environment, while avoiding the negative impact of low temperature on the physical state and function of cold storage door, and ensuring the stability of operation state and function.
