What are the specific functions of the refrigerators we use in our daily life?

I think it's all in terms of freezing, refrigeration, age, quality and size.

In terms of preserving food, many of our foods are temporarily uneaten, and refrigerated or frozen environments can better help us preserve some food.

Freezing function, refrigeration function, insurance function, temperature control function.

The main advantages of the refrigerator that people recognize are: keeping food fresh. Extend the shelf life of food. Make cold and delicious food in the summer. Below I will give you a detailed introduction to the advantages of refrigerators in these aspects.

The first aspect is to keep food fresh. In daily life, people will often put some leftover cold dishes, rice, and these into the refrigerator with a fresh-keeping box, which can be kept fresh in a short time, and after putting it in the refrigerator, there is no need to worry about microorganisms or bacteria will multiply a lot on which food, because the temperature, environment, and humidity in the refrigerator are not multiplied by microorganisms and bacteria, so bacteria and microorganisms exist in small quantities. This also reduces the production of carcinogens in meals.

That's the first advantage of the refrigerator.

The second aspect is to extend the shelf life of food. People in remote places will choose to buy a lot of meat when buying meat in the market, and then freeze the meat in the frozen layer of the refrigerator, ice into a very hard piece of meat, so that the meat can be stored in the refrigerator for about a month, without worrying about damage, and in the case of minus 5 or 6 degrees, bacteria and microorganisms can not multiply and cannot survive, so the meat can be stored in the frozen layer at the bottom of the refrigerator for a long time, and when it is to be used, it can be directly taken out for thawing. It can be the same as ordinary meat, and it will not damage the meat quality and will not have a strange smell. This is the second advantage of the refrigerator.

The third aspect is to make cold and delicious food in the summer. The most common thing made by the refrigerator is food with ice cubes, such as ice cubes can be made directly in summer, and then put them in Coke and Sprite, or you can freeze them directly, and you can also put jelly in the frozen layer and ice it into something similar to a popsicle. This is the third advantage of refrigerators.

To sum up, the above three aspects briefly list the three advantages of refrigerators.

The main advantage is that it can be used to store things, it can prevent food from becoming moldy, and it can also be used to make ice cream.

I don't know what other people's requirements for refrigerators are, when I choose a refrigerator, I pay attention to the following points, the first is to look small, the actual capacity is large, because the population is relatively large, the space is not particularly sufficient, second, it must be air-cooled, I have enough days of defrosting and de-icing, third, the area division of the refrigerator must be reasonable, otherwise it will appear irregular and easy to smell. Fourth, inverter compressors. In the end, I chose Siemens' ka50ne20ti, first of all, the appearance is full marks, the ultra-thin body is too suitable for my space, the capacity is relatively large502L is enough for home use, the space division is also very reasonable, the waterfall air outlet can keep the temperature of the space uniform, Siemens does not have to worry about refrigeration, the temperature control is very accurate, so that the temperature fluctuation range is small, it will increase the time of freshness, and the refrigerator of Siemens is happy to cook.

It can preserve food well, avoid food spoilage, is very clean, very hygienic, and can make food storage for a longer time.

The refrigerator should have a large storage capacity, low power consumption, no odor, clean function, and no frost.

A refrigerator is an enclosed insulated appliance for household use, with an appropriate volume and equipment, and cooled by an electrically consuming device. It has one or more compartments for the preservation of food, while it has at least one compartment where the temperature is kept above 0 degrees. The refrigeration principle of the refrigerator is simply to use the refrigerant in a confined space through a compressor.

The process of liquid-gas-liquid conversion. That is: the use of a compressor will come from the evaporator.

The low-temperature and low-pressure gas is compressed into a high-temperature and high-pressure gas and then passed through the condenser.

Condense, turn into a low-temperature and high-pressure liquid, and then turn into a low-temperature and low-pressure gas through the decompression throttling of the capillary, enter the evaporator and achieve the purpose of cooling through the absorption box. refrigerant in the circulating system.

The conversion of gas, liquid and gas is carried out repeatedly to achieve the purpose of refrigeration.

A refrigerator is a refrigeration appliance that can keep a constant low temperature and is a civilian product that keeps food or other items in a constant low temperature and cold state. It is divided into: compression, absorption, semiconductor, chemical, electromagnetic vibration, solar, solid-state refrigeration, etc., and the commonly used is compression refrigerator.

To understand the principle of refrigerator refrigeration, we must first understand the vaporization and liquefaction of substances in physics. 1. What is liquefaction and gasification? Liquefaction and vaporization are both processes of transformation of the state of matter.

Matter exists in nature in three states, namely solid, liquid, and gaseous, and can be converted into each other under certain conditions (temperature, pressure).

Liquefaction is the process of converting a substance from a gaseous state to a liquid, in which the substance releases heat; Vaporization is the process by which a substance is converted from a liquid state to a gaseous state, in which the substance absorbs heat. The refrigerator uses the principle of vaporization and liquefaction of substances. Second, the basic composition of the refrigerator:

The refrigerator is mainly composed of a compressor, a condenser, a capillary, an evaporator, and a refrigerant. The compressor plays the role of compressing the refrigerant, the condenser plays the role of cooling the gas into liquid, the capillary is to release the pressure of the compressed refrigerant, and the evaporator is to convert the liquid into gas, and the refrigerant is actually heat"Porters"That is, to carry the heat from the refrigerator to the outside of the refrigerator.

1. The compressor compresses the refrigerant gas. This increases the pressure and temperature of the refrigerant (orange), while the heat exchange coils on the outside of the refrigerator help the refrigerant dissipate the heat generated by pressurization. 2. When the refrigerant is cooled, the refrigerant liquefies into liquid form (purple) and flows through the safety valve.

3. When the refrigerant flows through the safety valve, the liquid refrigerant flows from the high-pressure area to the low-pressure area, so it expands and evaporates (light blue) 4. During the evaporation process, it will absorb heat and exert a refrigeration effect. 5. The coil in the refrigerator helps the refrigerant absorb heat and keeps the inside of the refrigerator cold. Then, repeat the cycle.

It should be that there will be a compressor in the refrigerator, and then the cold air can be directly generated through the compressor, which also requires some machines inside the refrigerator to work.

There are many types of refrigerators. The main types can be divided into the following categories:

1.Compression Chiller: This type of chiller provides mechanical energy through an electric motor.

The refrigeration system is acted on by means of a compressor. The refrigeration system uses a low boiling point refrigerant.

It is made by absorbing the heat of evaporation at the time of evaporation. The utility model discloses a long service life, and is convenient to use. Currently, 91 to 95% of the world's refrigerators fall into this category. At present, commonly used refrigerators use a type called freon.

The substance acts as a "porter" of heat, bringing the "heat" in the refrigerator to the outside of the refrigerator.

2.Absorption refrigerators: This type of refrigerator can use a heat source (such as gas, kerosene, electricity, etc.) as power. The purpose of refrigeration is to use ammonia and hydrogen to mix solutions.

Achieved in the process of continuous absorption diffusion. Its disadvantages are low efficiency and slow cooling, and it has been gradually phased out.

3.Semiconductor coolers.

It is a type of direct current that is applied to PN semiconductors.

and create a Peltier effect at the node.

to achieve refrigeration.

4.Chemical refrigerator: A refrigerator that uses strong heat absorption to achieve a cooling effect when certain chemicals are dissolved in water.

5.Electromagnetic vibrating refrigerator: A refrigerator that uses an electromagnetic vibrator as its own power to drive a compressor. Its principle and structure are basically the same as those of a compression refrigerator.

6.Solar refrigerators: Refrigerators that utilize solar energy as a cooling energy source.

7.Adiabatic demagnetization refrigerator.

8.Radiant refrigeration refrigerators.

9.Solid refrigerated refrigerators.

10.We know that any substance releases heat after liquefaction and absorbs heat during vaporization, which is the most common physical phenomenon. Air conditioners and refrigerators use this principle to liquefy the refrigerant to release heat, which is then allowed to evaporate to absorb the heat.

The heat released by liquefaction and the heat absorbed by evaporation cannot be in the same place, otherwise there will be no effect. Therefore, the air conditioner has an outdoor unit with the main functions such as heat dissipation, and the radiator of the refrigerator is outside the refrigerator.

11.We know that when the pressure is at a critical temperature.

When a certain value is reached, the gaseous substance liquefies. The so-called critical temperature is higher than this. It cannot be liquefied no matter how high the pressure is used.

Gasification occurs when the temperature is higher than the boiling point of a gaseous material at a certain pressure. During gasification, heat is absorbed, and the absorbed heat is obtained from the environment, resulting in refrigeration.

The gaseous substance used to achieve refrigeration is the refrigerant. As a refrigerant, the substance is usually a gas at room temperature for easy evaporation, and the critical temperature cannot be too low, otherwise it is not easy to liquefy during compression. It also requires to be non-toxic and odorless.

Refrigerators, freezers, direct cooling, intercooling, and are also divided into double doors and multiple doors, these types are classified according to their appearance and their effects.

Compression refrigerators, absorption refrigerators, single-door refrigerators, double-door refrigerators, smart refrigerators, these are basically common refrigerators.

The classification of refrigerators includes, single-door refrigerators, double-door refrigerators, three-door refrigerators, energy-saving refrigerators, and smart refrigerators, which are the specific classifications of refrigerators.

The common refrigerators in our lives, if divided according to the type, have single door, double door, triple door, double door folio, three-door folio, cross folio and multi-door folio; If it is divided according to the refrigeration method, there are direct cooling, air-cooling, and air-cooled mixed type; If it is divided according to the cycle mode, there are single cycle and double cycle; According to the energy efficiency level, it is divided into 1-5 levels. For example, Siemens KA92NV90TIThis refrigerator is a bi-side, 610L large-capacity refrigerator.

Now that the standard of living has improved, meat and vegetables are no longer simply stored in the refrigerator, and drinks, children's supplementary food, nutritional and health products, etc. also need to be refrigerated.

Hello dear, here is to help you find out what kind of function and function the refrigerator has: refrigeration: refrigeration, also known as preservation, is one of the most basic functions of the refrigerator, generally located in the upper part of the refrigerator, the temperature in the refrigeration layer is generally maintained at about 0 degrees to 10 degrees, suitable for preserving some vegetables, fruits, drinks, etc., can maintain the freshness of ingredients in a short time.

Crying group freezing: Freezing is also one of the functions of the refrigerator, which is generally located in the lower part of the refrigerator, and the temperature of the freezer layer is generally maintained below zero, which is suitable for preserving some meat, fish, popsicles, and some other frozen products, which can preserve the freshness of the ingredients for a long time. <>

The working principle of the refrigerator is that through the work of the compressor and the refrigeration system, the motor is used to provide mechanical energy, and the refrigeration system can use the refrigerant to absorb heat and get the purpose of freezing.

There will be a refrigerant in the refrigerator, and the heat will be emitted by liquefaction, and after evaporation, the heat will be absorbed, so that the effect of freshness can be achieved.

The working principle is to use the parts inside, such as refrigerant, to play a refrigeration effect, and a lot of food can be placed in it, which is not easy to break.

The working principle is that through the compressor, and then through the evaporator, it can play a refrigeration effect, and the heat can be released from the condenser, and then it can be used for circulation.