Introduction to humidification of air-conditioned refrigerators

General Knowledge of Cold Storage and Humidity, Humidification Cold storage warehouse is a place to store fresh agricultural products. Its role is to maintain the stability of the low temperature environment. Generally, the thermal insulation performance is called insulation. The good thermal insulation structure of the cold storage room can minimize the leakage of the cold energy produced by the cold storage unit in the cold storage. On the contrary, it is to minimize the leakage of heat from outside the cold storage to the cold storage, which is also the main difference between the cold storage and general buildings.

The cold storage is mainly used for the freezing processing and refrigeration of food, medicine and machinery. It can keep a certain low temperature indoors through manual refrigeration. The walls, floors and flat roofs of the cold storage buildings are covered with thermal insulation materials of a certain thickness to reduce the external heat transfer of the cold storage. In order to reduce the absorption of solar radiation, the surface of the external wall of the cold storage is generally painted white or light color, so the cold storage building is different from the general industrial and civil buildings, and it has its own unique structure.

Working principle of mechanical cold storage Mechanical cold storage is a method of storing fruits. Mechanical cold storage units are installed in a well insulated building, and the cold storage system is manually adjusted and controlled according to the requirements of fruit varieties for storage temperature, humidity and ventilation, so that the storage time is longer and the effect is better.

A. The principle of mechanical cold storage. Mechanical cold storage uses liquid (refrigerant) with very low gasification temperature to vaporize it into gas under low pressure, so as to absorb heat and achieve the purpose of cooling.

In addition to low boiling point, refrigerants used in cold storage are also required to be harmless to human organs, not corrosive to metals, not hazardous to combustion and explosion, not chemically reactive with lubricants, but also have good heat absorption performance, more evaporation heat absorption, low pressure, low viscosity and low price in high-pressure condensation system.