Installation and characteristics of cold storage air cooler

Installation and characteristics of cold storage air cooler

The cold storage air cooler is also known as an air cooler, which is an evaporative cooling and ventilation unit that integrates cooling, ventilation, dust prevention and deodorization. It is suitable for cooling and cooling equipment of various cold storages. It has compact structure, light weight and does not occupy the use area of ​​cold storage. The advantages of uniform storage temperature and high efficiency. The food stored in the cold storage is quickly cooled down, and the freshness of the stored food is greatly improved.

Installation and characteristics of cold storage air cooler

　　The cold storage air cooler is mainly composed of five important components, such as cooling and heat exchange tube, axial flow fan, liquid separator, frost holding device, and water receiving tray. The high-pressure normal temperature liquid refrigerant from the cold storage condenser is throttled by the thermal expansion valve and directly enters the liquid separator of the cold storage air cooler for uniform liquid separation and then sent to the heat exchange tube for vaporization and heat absorption. The axial flow fan of the cold storage air cooler is responsible for forced convection circulation of the cold storage air cooler and the air in the cold storage to achieve the purpose of cold storage cooling.

Since the surface temperature of the cold storage evaporator is lower than 0℃, as the cooling time increases, a frost layer will appear on the outer surface of the cold storage air cooler. After these frost layers are generated, it will not only seriously affect the heat transfer coefficient of the cold storage air cooler, but also cause the cold storage air cooler to circulate. The air volume is greatly reduced. This will seriously affect the heat exchange of the cold storage air cooler, and the operating performance of the cold storage equipment will be seriously reduced. In order to ensure that the cold storage air cooler has good heat exchange performance, the cold storage air cooler must be defrosted. At present, the most common defrost method for cold storage air coolers is electric defrost. Electric heating defrosting has many advantages such as thorough defrosting and automatic control. It has received many small-scale cold storage medicine cold vegetable cold storage projects.

　　 1. Precautions for installation of cold storage air cooler

　　 1. The distance between the back of the cold storage air cooler and the insulation board of the cold storage is at least 300 mm, which is conducive to air circulation in the cold storage and convenient for future maintenance.

　　2. The air return port of the cold storage air cooler in the cold storage should be equipped with a U-shaped oil return bend to facilitate the refrigeration oil to return to the cold storage compressor.

　　3. The outlet pipe of the cold air cooler in the cold storage should be set with a U-shaped bend to form a liquid seal to avoid air circulation inside and outside the storage.

　　 2. The cold storage air cooler has the following advantages

　　1. Adopting plastic spraying process, corrosion-resistant and elegant appearance.

　　 2. Reasonable performance design, convenient installation and maintenance.

　　3, the wind speed is uniform, and the condenser heat exchange efficiency is high.

　　4, low noise, stable operation, all through the pressure maintaining nitrogen filling treatment before leaving the factory.