The meaning of direct-cooling cold storage: the cooling tube of the cold storage evaporator is directly fixed on the storage plate. When the evaporator absorbs heat, the air closer to the cooling tube cools faster, thereby forming natural convection in the cold storage room, which is gradually realized Integral refrigeration, that is, direct cooling methods, such as common iron row pipes, aluminum row pipes, etc.
Air-cooled cold storage means: the cold air generated by the cold storage evaporator is circulated through the fan to force the refrigerating air, so that the cold air is evenly distributed in each compartment of the cold storage to achieve cooling, that is, the cooling method that uses the fan to circulate the cold air.
Direct-cooled cold storage
Advantages of direct cooling cold storage:
1. Direct cooling type cold storage has simple structure, relatively low failure rate, and low cost resulting in low price.
2. It has a good cooling effect and is relatively more energy-saving and electricity-saving.
3. Natural convection in the confined space, the air humidity is relatively high, and the moisture in the food is not easy to lose.
Fourth, the temperature volatilizes slowly. If the unit fails in a short time, the original temperature can be maintained in the warehouse for a short time, and the impact on the goods is small.
Disadvantages of direct cooling cold storage:
1. The problem of frosting causes users to manually defrost, which is time-consuming and laborious, and is not welcome.
2. The frosting problem will seriously affect the heat absorption and refrigeration of the evaporator, and the refrigeration efficiency will be significantly reduced.
3. Natural convection makes the cold storage distribution uneven. There are dead spots in the cold storage, the food is frozen to different degrees, and the cooling effect is poor.
Fourth, the refrigeration is slightly slower, because according to the characteristics of the pipeline, the refrigeration speed is slightly slower;
Fifth, the humidity of the air is relatively high, which will easily cause the food in the freezer to stick and freeze together, and it is not easy to separate.
Air-cooled cold storage
Advantages of air-cooled cold storage:
1. The air-cooled cold storage basically does not form frost on the inner wall of the refrigerator, which avoids the trouble of manual defrosting. The user saves worry and effort. Therefore, it is welcomed by many consumers.
2. The refrigerating air is forced to circulate by the fan, the cooling speed of the cold storage is faster, and the air-conditioning distribution is more balanced.
3. The refrigeration is fast, and the air cooler can quickly refrigerate, so that the temperature in the warehouse can quickly reach the temperature required by the goods.
Fourth, the price of relatively direct cooling aluminum row is cheaper. Medical Cold Storage Room.
Disadvantages of air-cooled cold storage:
1. The complicated structure of the air-cooled cold storage causes a relatively high failure rate, and the cost also rises accordingly.
2. In order to realize the circulating flow of cold air, the fan has a heavy workload, and the automatic defrosting will also increase the energy consumption, so the power consumption is relatively large.
3. Running cold and quick freezing is fast. If the unit has a short-term failure or the selection of insulation materials is unreasonable, the running cold will be faster. Therefore, there must be certain requirements for the time for after-sales maintenance personnel to come to the door.
Fourth, the food in the warehouse is easy to dry and consume, and the goods without packaging or tuyere are easy to be dried and lose moisture. Get more details from https://www.icemakerchina.com/
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