How to control the temperature of the low-temperature storage room

How to control the temperature of the low-temperature storage room

Low-temperature preservation warehouses, we see the most food cold storage, which is mainly used to store items with strict temperature requirements. The temperature in the warehouse is often 0°C or minus Celsius, which is a low-temperature storage environment; this environment It can inhibit the reproduction and growth of microorganisms, reduce the activity of biological enzymes, ensure the quality of food, and effectively control the speed of food spoilage, so that the nutritional value and nutrient elements of the food are not lost.

Then, in the process of using the low-temperature storage, many users will find such a phenomenon, that is, how careful they are in use, and there is no way to control the temperature of the low-temperature cold storage, which often leads to various internal temperatures. Change phenomenon; therefore, when many users use low-temperature fresh-keeping cold storage, they will repeatedly ask what are the reasons for the temperature change of low-temperature fresh-keeping cold storage?

The main reason for the temperature change of the low-temperature fresh-keeping cold storage lies in the airtight structure of the storage body. If the low-temperature fresh-keeping cold storage is constructed, the gap between the storage board and the storage board is not tightly sealed, leaving a gap; then, use it later During the process, a large amount of energy will be lost, and the higher temperature outside the warehouse will enter the warehouse, which affects the overall temperature of the low-temperature preservation cold storage. Whether the floor of the cold storage is covered with a floor or coated with insulation materials. The thickness of the library board is generally 150mm or 200mm. The board is filled with polyurethane insulation material. The two sides are plastic coated color steel plate or stainless steel plate. The color steel plate surface is processed into invisible grooves. It has light weight, high strength, good heat insulation performance, and resistance. Corrosion, anti-aging, the warehouse board is easy and quick to assemble, and it is one of the best materials for cold storage insulation.　

　 In addition, the cause of the change in the temperature of the low-temperature preservation cold storage may also be caused by the careless operation of the workers. If the cold storage door is frequently opened during the use of the preservation cold storage, and the door is not closed at hand, the same will happen. This led to the loss of air-conditioning, which affected the temperature in the warehouse. As long as the correct use method is mastered, the temperature change caused by this reason can be controlled in time. Each employee should receive professional practical knowledge training before taking up his post to ensure the best performance of the fresh-keeping cold storage.

　　 Do not make the temperature difference in the cold storage too large, which will easily greatly reduce the freshness of the stored food and reduce the nutritional value.

　　 Reasonably choose the ventilation time of the refrigerator

　　 For some refrigerators with ventilation requirements, the load caused by ventilation is relatively large, because the temperature and humidity difference between inside and outside the refrigerator is large, and the heat and humidity exchange between indoor and outdoor has a large impact on the load of the refrigerator. If it is arranged between 5:00 and 6:00 in the morning, the temperature and humidity of the ambient air are relatively low at this time, and the air is relatively fresh, and the heat and humidity load caused by ventilation is relatively small. Some high-temperature cold storage operating experience has proved this point.