You can now see glass-door freezers in supermarkets, convenience stores, and elsewhere. So how does a glass door freezer work? Why do so many people like to use glass door freezers? Working principle The working principle and function of the refrigerator glass door are similar to other refrigerators, but the design is more practical. The interior of the glass-door freezer is equipped with a refrigeration compressor that cools the air when it is turned on, and then uses the movement of the fan to expel it.
However, since refrigeration requires a lot of energy, having a cooling unit in the rear or bottom of the refrigerator can help maintain the temperature of the system. Some people wonder why the freezer doesn't frost because most of the water vapor comes from the air. When people take food and open the freezer, the indoor air and the gas in the freezer exchange freely, and the indoor humid air enters the freezer quietly.
Some of the water vapor comes from food stored in the freezer. For example, put clean vegetables and fruits in a fresh-keeping box, and the water in vegetables and other foods will evaporate and condense into frost when it is cold. Therefore, according to common sense, the inside of the refrigerator should be covered with frost.
But the glass door of the freezer is not only unusable, but also very clean, and it is not easy to get dust on the glass door. This is because our refrigerator is equipped with a special defrosting device, and the glass door used has also been specially treated to prevent condensation. dew and frost. The so-called defrosting device is to arrange some heating coils on the surface of the freezer, and these heating coils will periodically emit a certain amount of heat to dissolve the frost on the surface. And this kind of heat is strictly set, its ability can only melt some frost, and it will not affect the internal storage items, that is to say, even in the heating stage, the items stored in the refrigerator can maintain a constant temperature.
In addition, temperature sensors are installed in the glass-door freezer. When people set the temperature of the refrigerator, once the system finds that the temperature is about to exceed the set temperature, it will start to cool down, do not let the temperature exceed the set temperature, in order to achieve the purpose of constant temperature, in order to better preserve the goods, so that the goods are not affected by the temperature and metamorphic effects. The ergonomics of glass-door freezers have also seen more improvements.
Consumers can easily pick up the goods, and can easily open and close the door without interference from external forces, so as to achieve a more energy-saving effect. The stylish and atmospheric appearance gives people a bright feeling. In supermarkets and convenience stores, vertical glass door display cabinets are very common.
You may be wondering why the glass door design?
Design Rationale First, there are several reasons for this design. These refrigerators are mainly used for cold storage of beverages in supermarkets and convenience stores. The glass door design can display the goods well and make the goods clear at a glance; it can also prevent the loss of air conditioning from affecting refrigeration; moreover, it can improve the level of the store and stimulate customers' desire to buy.
The principle of water mist Fog in the glass door freezer is formed by condensed water vapor in the air. When the freezer is placed in a place with high temperature and high humidity, since the surface temperature of the glass door of the freezer is low, when it meets the moisture in the air, water mist will appear on the glass door. Water mist will affect the mood of customers to buy goods and the display effect of goods.
How can we solve this problem? The portable upright freezer adopts a narrow frame glass door, which can effectively prevent water mist from condensing on the glass door, and has a generous and simple appearance. Air-cooled cooling with split external units. Low noise, not easy to heat.
LCD temperature controller, easy to operate. The space in the cabinet can be adjusted and utilized at will. Why does the glass door of the refrigerator fog up? It is normal to have water mist on the outside of the glass.
This is mainly due to the high indoor temperature and humidity. The temperature difference between the indoor temperature and the surface temperature of the cake display case is too large, causing the air with high indoor temperature to condense into water mist when it encounters the glass door of the cryocooler. There are mainly the following methods to deal with the water mist on the glass surface of the refrigerator: 1) If the temperature requirement of the food placed is not very high, you can properly adjust the temperature in the cabinet; 2) Use a dry cloth, dry towel and other soapy water or The cleaner wipes the water mist directly on the glass surface.
At the same time, try to reduce the number of door openings, and pay attention to ventilation during normal use; 3) Defoggers can be sprayed on the glass surface; 4) The indoor air conditioner can be turned on to reduce the indoor temperature and the temperature difference between the inside and outside of the refrigerator; 5) The spotlights in the store can be directly Light up on the glass door. There are three main defogging technologies for ordinary refrigerators: 1) Heating wire is a hair-like thin wire; 2) Heating film means that there is a heating film between two layers of glass; 3) Hot air defogging technology can utilize the Thermal energy is exported and surrounds the glass.