Uncover the key factors of freezer temperature uniformity

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In daily household or commercial operation, the refrigerator is the main force of food preservation. But many people find that the ingredients in different parts of the refrigerator are in different states: the fruit near the air outlet is frozen solid, while the vegetables in the corner are beginning to wilt. Behind this, the temperature uniformity of the freezer plays a key role. It is related to the time and quality of food preservation, but also affects the use of cost and experience. Next, let's unveil the mystery that affects the temperature uniformity of the freezer.

1、Design factors of refrigerator structure

The structure design of refrigerator is the basic guarantee of temperature uniformity. The air duct design is like the traffic vein inside the refrigerator, and the reasonable layout can make the cold air flow evenly. For example, the use of three-dimensional surrounding air ducts, air-conditioning can be blown from multiple directions, to avoid local air-conditioning cut-off, to ensure a balanced temperature everywhere. High-quality thermal insulation materials and tight sealing process can effectively block the invasion of external heat. Taking polyurethane foam layer as an example, its low thermal conductivity can greatly reduce heat transfer and maintain internal temperature stability. The layout of the interior space can not be ignored. Scientific shelf spacing and layered design, can make the smooth circulation of air-conditioning. If the goods placed too densely, will hinder the flow of cold air, forming a local high temperature zone. Reasonable planning of space, air-conditioning can be unimpeded, to ensure uniform temperature.

2、Factors of refrigeration system

Refrigeration system is the heart of refrigerator, which plays a decisive role in temperature uniformity. Compressor as a power source, high-performance products can accurately control the cooling capacity. For example, the variable frequency compressor can automatically adjust the speed according to the temperature change, to avoid large temperature fluctuations, so that the temperature uniformity is better. Evaporators and condensers are the pioneers of heat exchange in refrigeration systems. They can exchange heat quickly. The evaporator and condenser with advanced fin structure can increase heat exchange area, improve heat exchange efficiency, reduce temperature fluctuation and ensure temperature uniformity.

3、Environmental and operational factors

The environment and use mode of the refrigerator are the external factors that affect the temperature uniformity. Ambient temperature is one of the interference sources. Under high temperature environment, the cooling of refrigerator is difficult, and the working time of compressor is prolonged, which may lead to the increase of internal temperature and the deterioration of uniformity. Therefore, the refrigerator should be placed in a well-ventilated, away from the heat source. Open the door frequently or open the door for too long, a large number of hot air into the internal temperature will rise rapidly. Experiments have shown that opening a door for 30 seconds can raise the temperature by 5 °C. Therefore, we should try to reduce the number of doors, shorten the opening time. Over-loading or placing high-temperature goods will increase the cooling load, resulting in uneven temperature. Reasonable control of loading, so that the temperature of goods close to the set value and then put in, in order to maintain the temperature uniformity.

4、Monitoring and control factors

Advanced Monitoring and control system is to protect the temperature uniformity of the smart brain. The temperature sensor is like a sensing antenna, and multiple high-precision sensors are reasonably arranged, which can comprehensively monitor the temperature distribution in the freezer and provide accurate data for the control system. The advanced algorithm can quickly adjust the cooling parameters according to the change of temperature. For example, the fuzzy control algorithm can deal with complex temperature changes and automatically optimize the refrigeration strategy to ensure that the temperature is always stable within the set range and ensure temperature uniformity.

Conclusion

Freezer temperature uniformity, this seemingly minor details, in fact, related to the quality of life and efficiency. It is the exquisite integration of technology and design, the tacit cooperation of environment and use, and the intelligent guard of monitoring and control. When we deeply understand and properly deal with the factors that affect the temperature uniformity, it is like injecting harmony factor into the freezer, so that it can create a clean and fresh place for food ingredients in a stable and balanced way.