First, the Upright Freezer evaporator has more air or refrigerated oil, and the heat transfer effect is reduced. More refrigerant oil is attached to the heat transfer tube of Upright Freezer evaporator, and the heat transfer coefficient is greatly reduced. Similarly, if there is more air in the electric heating pipe, the heat transfer area of the refrigerated cabinet evaporator will be reduced, the heat transfer efficiency will be significantly reduced, and the temperature reduction rate will also slow down.

Second, the frost or dust of the Upright Freezer evaporator is too thick, and the heat transfer effect is reduced. Another main reason for the slow temperature drop of the Upright Freezer is the low heat transfer efficiency of the evaporator. This is mainly because the frost layer on the outside of the Upright Freezer evaporator is too thick or too dusty. Because the external temperature of the evaporator is mostly lower than 0 degrees Celsius, the humidity of the Upright Freezer is relatively high, and the moisture in the air is sandwiched with cream or frozen outside the evaporator, which affects the heat transfer effect of the Upright Freezer evaporator.

The function of the refrigerator is to keep fresh, the function of the freezer is to freeze, and the refrigerated-freezer conversion cabinet can keep fresh and quick freeze. The temperature of Upright Freezer is -16℃——-26℃. It is used for quick-frozen food, cold drinks and long-term meat. It can be stored in Upright Freezer for a long time. The water in Upright Freezer food is easy to condense into frost. It must be defrosted to a certain extent. The temperature of the refrigerator is 2°C -10°C, so that it will not frostbite the food but also has a fresh-keeping effect. You can put some fruits, vegetables, beer and drinks.

Upright Freezer is a low-temperature refrigeration and freezing equipment for deep freezing. Usually called a freezer etc. Upright Freezer has many uses, from the food industry to the medical industry, etc., can be used. According to different use environment and use effect requirements, the cooling space of Upright Freezer is from -45℃ to 0℃, each has its own interval. Vaporization absorbs heat and liquefaction exotherms.

The Upright Freezer uses a compressor to compress gaseous Freon into high temperature and high pressure gaseous Freon, and then sends it to the condenser to dissipate heat and become liquid Freon at room temperature and high pressure, so the condenser blows out hot air. Then it goes to the capillary and enters the evaporator. After the freon reaches the evaporator from the capillary, the space suddenly increases and the pressure decreases. The liquid freon will vaporize and become gaseous low-temperature freon, which absorbs a lot of heat, and the evaporator will change Cold, using refrigeration or air cooling to achieve cooling in the room (box).

The sudden epidemic spread to the world at a rapid rate, and the destructive power and harm brought about it brought great pain and blow to the entire human society and development. Although China has temporarily controlled the epidemic, it is believed that after the epidemic, everyone is concerned about food hygiene and food hygiene. Health issues have become more sensitive and concerned, and more food businesses will begin to choose refrigerators that can ensure food hygiene to store food, and Upright Freezer is the first choice for retail operations.

Regarding how the Upright Freezer should be used correctly after purchase, I will give you a detailed introduction today:

1. The newly purchased or moved Upright Freezer should be left for 2 to 6 hours before turning on. Before use, run the empty box for 2 to 6 hours. Do not start immediately after shutdown, wait for more than 5 minutes to avoid burning the compressor.

2. The freezer should be placed on a flat floor. The indoor environment where the freezer is placed should be well ventilated and dry. The top should be more than 50cm away from the ceiling, the left and right sides should be more than 20cm away from other objects, and the back should be more than 20cm away from other objects.

3. When the freezer is used, hot food must be cooled to room temperature before being placed in the showcase. For vertical (air-cooled) refrigerators, do not keep food too close to the air outlet when storing food. For direct-cooled refrigerators, manual defrosting is required when the frost thickness reaches 5 mm.

The above introduction of the relevant knowledge about the operation and use of the Upright Freezer, I hope to help friends who have this need!

One, Upright Freezer's cooling performance

The performance of refrigeration is mainly based on the comprehensive evaluation of the refrigeration effect and cooling speed of the freezer. As long as these two aspects can meet certain standards, it can be regarded as a freezer with better refrigeration performance, just like if we store it in a freezer. When there is a lot of food, you can observe the refrigeration effect of the freezer to see how long the food in the freezer can achieve the effect of low temperature preservation. The vertical Upright Freezer has the advantage that it is beneficial to us to store food, and it is better to choose the right one The temperature range preserves our food. Today's refrigerators will use vertical microcomputer temperature control technology and electronic microcomputer-designed temperature controllers. The temperature controller can automatically adjust the overall temperature of the refrigerator to ensure the freshness and safety of the food stored in the refrigerator. .

2. Understand the energy-saving issues of Upright Freezer

The power consumption of refrigerators is a problem that many businesses who need refrigerators will consider. They will give priority to some low-energy refrigerators. In fact, I tell everyone that they are not necessarily low-energy refrigerators. We use them as good ones. The actual demand. Although some refrigerators have relatively low energy consumption, their power is also relatively small. If we want to store more food when we use it, the power of the refrigerator will not meet the requirements and the cooling requirements , Affect our use, when we choose the freezer, we should not deliberately pursue the lowest power consumption of the freezer, so as not to affect our use.

Three, Upright Freezer design

At present, when people buy freezers, they actually see the overall appearance of the freezer at first glance to see if the appearance can meet our requirements. Especially commercial freezers are used in supermarkets and convenience stores with a relatively large flow of people. Locally, the aesthetic appearance is very important, but the practicality of the freezer must also be considered, and whether the raw materials used in the freezer can be durable and corrosion-resistant.

Electric glass defrosting function:
The electric glass defrosting function is designed to remove the frost layer formed on the glass surface due to low temperature, ensure the clear visibility of the glass, and provide users with good observation conditions. This function is essential for commercial refrigerators that need to clearly observe the internal items.
Working principle:
The defrosting of electric glass is based on the principle of resistance heating. In the interlayer of the glass, fine resistance wires are embedded or coated with conductive coatings. When current passes through these resistance elements, electrical energy is converted into thermal energy, and the glass heats up.
The frost layer melts into water after being heated, and then evaporates or is discharged along the drainage system of the refrigerator. Since the heat is evenly distributed inside the glass, the entire glass surface can be defrosted synchronously without the situation of local residual frost.
For example, in the resistance wire type electric heating glass, the resistance wire is distributed in a specific arrangement. When the current passes, the resistance wire heats up and the heat is quickly transferred to the glass surface.

Application introduction in commercial refrigerators:
Commercial refrigerators are usually used to store and display large quantities of refrigerated or frozen goods. In low temperature environments, the glass door of the freezer is prone to frost, which affects customers' observation and selection of goods.
Commercial freezers equipped with electric glass defrosting function can effectively solve this problem. Merchants do not need to frequently defrost manually, saving time and labor costs.
Customers can also clearly see the goods in the freezer, improving the shopping experience. Moreover, the continuous clear view helps merchants to better display goods and promote sales.
For example, in the frozen food area of ​​the supermarket, the freezer with electric glass defrosting function allows customers to see the packaging and labels of various frozen foods at a glance, which is convenient for purchase.
In the hotel's kitchen freezer, the chef can quickly and accurately find the required ingredients without having to wipe the frost layer laboriously.
In addition, the electric glass defrosting function also improves the energy efficiency of the freezer. Due to the reduction of the frost layer, the refrigeration system of the freezer does not need to consume more energy to overcome the insulation effect of the frost layer, thereby reducing operating costs.
In short, the application of electric glass defrosting function in commercial freezers not only improves the convenience and display effect of the freezer, but also brings the advantages of energy saving and reduced operating costs.