What is the coolant used in a refrigerator? Coolant is something

Coolants used in refrigerators are R12, R134A, and R600A.

Before 2010, the refrigeration system of ordinary refrigerators often used R12 freon as a refrigerant. Later, the state issued regulations on freon refrigerants, stipulating that all products with freon refrigerants were not allowed to be sold in 2010.

Therefore, many manufacturers have successively transformed to launch fluorine-free refrigerators. Most of these refrigerators use R134A refrigerant or R600A refrigerant instead of R12 refrigerant, and the main components and sealing materials and lubricating oil of the refrigerator are different from ordinary refrigerators.

The coolant used in the refrigerator is Freon. Coolant means coolant with antifreeze function, antifreeze can prevent the coolant from freezing and cracking the radiator and freezing the engine cylinder block when the coolant is stopped in the cold season, but we have to correct a misunderstanding, antifreeze is not only used in winter, it should be used all year round, the normal maintenance project of the car, every year of driving, the engine antifreeze needs to be replaced.

Coolant features:

1. The key ingredient of this product, in dry ice (solid form of CO2), has the characteristics of environmental protection, non-toxic, non-corrosive and non-polluting.

2. Refined light fragrance, pleasant and comfortable.

3. Heat quickly after spraying, evaporate the upper surface of the mat that absorbs heat and quickly cool the effect, you can cool it to 40 degrees immediately.

4. White ice crystals caused by low seat temperature or uneven spraying, wait for a while, the ice crystals can evaporate.

The refrigerator itself does not require coolant because the refrigerator simply provides a place for the phase change of the refrigerant inside the compressor.

But the compressor of the refrigerator needs to be cooled. Compressor cooling is divided into internal and external.

External cooling is generally carried out by a small fan at the bottom of the back of the refrigerator to cool down the compressor.

The internal cooling of the compressor is mainly to help the cylinder and motor of the compressor cool down through the refrigeration oil and the low-temperature and low-pressure refrigerant liquid inhaled.

Freon. Later, hydrogen carbide was used.

This is the antifreeze kettle, and the glass kettle only has a lid and no tube. Just buy your own bottle of antifreeze and add it close to the top line, remember to be close to the top line scale. Thank you!

Coolant is antifreeze, it won't freeze, protect your engine Coolant is antifreeze. Coolant is used as a medium for the engine cooling of the car Its freezing point and boiling point are different from water The simple understanding is that gasoline is burned in the engine cylinder, which will produce a high temperature of thousands of degrees, and the metal and rubber parts of the engine part can not withstand such high temperatures, so liquid is needed to cool, and this part of the liquid is called coolant. Cooling and lubrication can be said to be the most basic guarantee for the normal operation of the engine.

Coolant can be divided into the following types: a. Water --- has almost no cost and has been widely accepted by the public, but because water is easy to oxidize and contain minerals, resulting in serious corrosion of cast iron and aluminum parts and freezing in winter, the engine life is very short after use, and it has been basically withdrawn from use.

Two. The antifreeze --- is composed of 50% water, ethylene glycol and additives, which effectively prevents icing and corrosion in winter. However, the antifreeze itself has a short service life, which will fail in two years, and the mixed acid corrosion after failure is more serious.

It is currently the mainstream product on the market and is recognized by the vast majority of users. Three. Waterless coolant --- completely solve the shortcomings of water (low boiling point, oxidation corrosion, winter freezing, easy to open the pot, etc.), the main material is propylene glycol, full-time balance engine temperature, improve acceleration performance and reduce emission performance characteristics, no need to replace during use, the current leading product on the market is the United States Aewen waterless coolant.

The coolant is antifreeze, and now the general antifreeze is a mixture of water and ethylene glycol. The engine generates heat when it is working, and it needs to be cooled and cooled, which used to be cooled with water, and now it is coolant, also called antifreeze, and the commonly used boiling point is 108 degrees Celsius, freezing point -40 degrees. The main ingredient is ethylene glycol.

Coolant is antifreeze, which is mainly used to cool the engine and make the car travel farther. Car coolant is used to cool the engine, water or antifreeze!

The full name of coolant is antifreeze coolant.

It means that the coolant with antifreeze function is used to take away the heat of the engine through the flow and help keep the engine temperature at about 90 degrees Celsius, so that the engine has high thermal efficiency, smooth operation and strong explosive power.

Because the coolant can remain liquid in winter and will not freeze, prevent the backflow of engine condensate from icing, and protect the engine and engine pipes, it is also called antifreeze. The function of the coolant is to prevent corrosion, cavitation and leakage, prevent the radiator from boiling, prevent water scale and anti-freezing, so that the cooling system is always in a good working condition and ensure the normal working temperature of the engine.

Adding antifreeze to the water also increases the boiling point of the coolant. For example, the boiling point of a coolant containing 50 ethylene glycol at atmospheric pressure is 130°C. Therefore, antifreeze has the added effect of preventing the coolant from boiling prematurely.

The role of coolant:

1. Prevent the coolant from freezing and cracking the radiator and freezing the engine cylinder block when the coolant is stopped in the cold season.

2. Prevent corrosion of metal parts and aging of rubber parts.

3. Reduce the generation of scale, so as not to block the circulating pipeline and affect the heat dissipation function of the cold brigade but the bucket.

4. Prevent the water temperature of the engine from being too high and ensure that the engine can run at normal working temperature.

5. Provide lubrication for water pump thermostat and other components. The coolant is called antifreeze coolant, which is composed of water, antifreeze and additives, and can be divided into alcohol type, glycerol type and ethylene glycol type according to the different components of antifreeze.

Automobile coolant, also known as antifreeze coolant, is a medium to ensure the normal operation of water-cooled engines.

The main components of coolant are: water, antifreeze, additives, and can be divided into alcohol type, glycerol type, and ethylene glycol type according to their different components.

Coolant is a liquid that can cool the engine, which circulates in the engine cooling system to take away the excess heat generated by the engine work, so that the engine can run at the normal working temperature and play a cooling effect.

At present, most of the antifreeze on the market is ethylene glycol water-based type rotten land, and the shelf life of this antifreeze is about two years, so it is recommended to replace it every 2 years or every 40,000 kilometers or so.

Notes:

1. It is necessary to insist on the perennial use of coolant, and pay attention to the continuity of coolant use. The view that only needs to be used in winter is wrong, only knowing the anti-freezing function of the coolant, and ignoring the anti-corrosion, anti-boiling, anti-scaling and other functions of the coolant.

2. According to the temperature of the area where the car is used, the coolant with different freezing points is selected, and the freezing point of the coolant should be at least 10 lower than the minimum temperature in the area, so as not to lose the anti-freezing effect.

3. Different brands of coolant can not be mixed to avoid chemical reactions and destroy their comprehensive anti-corrosion capabilities, and the remaining coolant should be marked on the container to avoid confusion.

1. Winter anti-freezing.

In order to prevent the coolant from freezing after the car is parked in winter, causing the water tank and engine block to burst due to the freezing of the coolant, it is required that the freezing point of the coolant should be about 10 lower than the minimum temperature in the area in case of sudden weather changes.

2. Anti-corrosion.

The radiator, water pump, cylinder block and cylinder head, water distribution pipe and other components in the cooling system are composed of steel, cast iron, brass, copper, aluminum, solder and other metals. At the same time, the acid products formed after the decomposition of diools in the coolant and the acid exhaust gas after fuel combustion may also penetrate into the cooling system and promote the corrosion of the cooling system. Corrosion of the cooling system will cause the downwater chamber, fuel injector spacer, cooling pipe, joint and water tank pipe of the radiator tank to fail, and at the same time, the corrosion products will block the pipeline, causing the engine to overheat or even paralyze; If the corrosion is perforated, the coolant can penetrate into the combustion chamber or crankcase and cause serious damage, because when the coolant or water is mixed with the oil, it creates oil build-up or gum, weakening the lubrication and causing the valve, hydraulic valve pushrod and piston ring to bond. Therefore, a certain amount of anti-corrosion additives are added to the coolant to prevent corrosion in the cooling system.

3. Waterproof scale.

The coolant should be circulated to reduce the generation of scale as little as possible, so as not to block the circulation pipe and affect the heat dissipation function of the cooling system. To sum up, you should be cautious when selecting and adding coolant. First of all, you should choose the appropriate ratio of coolant according to the specific situation.

Second, add coolant. Add the coolant of the selected ratio to the water tank to make the liquid level reach the specified position.

4. Prevent boiling.

Compared with the boiling point of water of 100, the coolant can withstand higher temperatures without boiling (boiling), which meets the heat dissipation and cooling needs of high-load engines to a certain extent.