1、空气预冷：空气预冷方法具有空气温湿度易调节、可用于各种食品冷却冷藏运输、设备造价低等优点。

1. Air precooling: air pre cooling method has the advantages of easy adjustment of air temperature and humidity, and can be used for various kinds of food cooling, refrigeration, transportation and low equipment cost.

2、水预冷：利用水将被冷却食品从初始温度降至到所需要的终点温度的方法称为水预冷方法。

2. Water pre cooling: the method of using water to cool the cooled food from the initial temperature to the desired end point is called water precooling.

3、真空预冷：依据水随压力降低其沸点也降低的物理性质，将预冷食品置于真空槽中抽真空，当压力降低到一定数值时，食品表面的水分开始蒸发，吸收汽化潜热，使食品自身被冷却的方法就是真空预冷方法

3, vacuum pre cooling: Based on the physical properties of water is reduced with the decrease of pressure the boiling point, the pre cold food in a vacuum tank vacuum, when the pressure is reduced to a certain value, the food surface water evaporates, absorb the latent heat of vaporization, the food itself is cooling is vacuum pre cooling method

大多数冷库安装业内人士认为冷库的温度越低越好，冰存物的保存期限可以延长，但有时应依据各种物品所需要的保存温度而定，以蔬果类，过低的储藏温度易导致冻伤发生，而肉类产品温度低可保存较长时间。

Most industry insiders believe that the cold storage installation and the lower the temperature, the ice storage preservation period can be extended, but sometimes should be based on various items to save depending on temperature, with low temperature storage Vegetable & Fruit, easily lead to the occurrence of frostbite, and low temperature meat products can be preserved for a long time.

冷库以经济与能源观点来考虑，就应以保存时间长久来选择低温冷库储藏温度，如肉类在-18°C下可储存4-6个月，在-23°C下可存储8-12个月，因为肉类在5个月内就要到消费者手上，所以有时会考虑是否选择-23°C的保存温度，因此，冷库安装必须依存物的商品命周期，与其有效的保存环境来选择合适的保存温度。

In cold storage energy and economic perspective, it should be stored a long time to choose the low temperature cold storage temperature, such as meat in -18 ~ C can be stored in 4-6 months, -23 ~ C can be stored for 8-12 months, because going to the hands of consumers of meat in 5 months, so sometimes considered whether the choice of -23 DEG C temperature, therefore, must depend on the cold storage installation commodity life cycle, and the effective preservation of the environment to select the appropriate storage temperature.

您的需求就是我们努力的方向，您的追求就是我们的追求，欢迎您的到来，我们一起进步，一起创新!

Your demand is the direction of our efforts, your pursuit is our pursuit, welcome your arrival, we progress together, with innovation!