Working Principle of Cold Storage Refrigeration Equipment

Cold storage is a place for storing fresh produce. Its function is to maintain the stability of the low-temperature environment. Usually, heat insulation performance is called heat preservation. A good thermal insulation structure in the cold storage can maximize the amount of cold produced by the unit in the cold storage less leakage to the outside of the cold storage, on the other hand, is to minimize the leakage of heat from the outside of the cold storage to the inside of the cold storage, which is also the main difference between the cold storage and general houses.

The cold storage is mainly used for the freezing processing and cold storage of food, medicine, and machinery. It uses artificial refrigeration to keep the room at a certain low temperature. The wire diameter of the cold storage construction engineering company meets the requirements, and the wires are configured according to the performance of the electrical appliances. The joints are firm, and the pipes need to be maintained without saving, and the power is connected correctly. The wire enters the evaporator junction box hole and needs to be sealed with silica gel. If the lamp is connected to 36V or more, a grounding wire is required. The electrical cabinet of the cold storage construction unit needs a three-phase five-wire system and reliable grounding. The walls, floors, and flat roofs of the cold storage building are covered with a certain thickness of heat insulation to minimize heat transfer from outside the cold storage. In order to reduce the absorption of solar radiant energy, the outer wall surface of the cold storage is generally painted in a white or light color. Therefore, the cold storage building is different from the general industrial and civil buildings. It has its own unique structure.

There are three states of matter in the world: gas, solid, and liquid. Under certain conditions, the three states can be transformed into each other. When a liquid changes from a liquid to a gaseous state, it will absorb a lot of heat, which is referred to as "liquid vaporization heat absorption". Refrigerators use liquid vaporization heat absorption for cooling. This type of freezer is provided by a motor to provide mechanical energy, and the compressor is For work, the refrigeration system is made by the principle of absorbing the heat of vaporization when a refrigerant with a low boiling point is evaporated.

In the throat of the cold storage, there is a refrigerant called Freon or environmental protection refrigerant, commonly known as refrigerant. The cold storage installation company should pay attention to the collision and scratches of hard objects on the storage body during use. Because it can cause depression and corrosion of the library board, it will seriously reduce the local insulation performance of the library body. The cold storage construction engineering company determines the size of the cold storage (length×width×height) according to the tonnage of the goods it stores, the daily incoming and outgoing volume, and the size of the building. Determine the size of the warehouse door and the opening direction of the door. The installation environment of the cold storage should be clean, dry, and ventilated. The commonly used one is difluoromethane chloride, which is a colorless, odorless, and non-toxic gas with a boiling point of 29°C. When freon is in the gas state, it is pressurized by the compressor. After pressurization, it flows through the throat pipe to the condenser on the back of the freezer. After heat dissipation by the heat sink, it condenses into liquid. Cause the inside of the freezer to cool. The vaporized freon is pressed back by the compressor to the condenser outside the box to dissipate heat and then becomes liquid. The cycle continues, pumping the heat in the freezer out of the box.

The above information is provided by the meat cold room factory.