Can you tell me about the principle of air conditioning, the working principle of air conditioning i

The refrigeration principle of a general household air conditioner is the same as that of a refrigerator. The compressor is used to turn the liquid refrigerant into gas, absorb heat in the evaporator, and circulate it to the condenser to dissipate heat to achieve the purpose of refrigeration. The heating principle is the reason why the air conditioner adds a four-way reversing valve to turn the condenser into an evaporator.

The circulation of the refrigerant is powered by the compressor. The use of compressor emptying is to turn off the low-pressure valve, loosen the low-pressure pipe, start the compressor, and quickly tighten the low-pressure pipe when the low-pressure pipe has no air to discharge.

The working principle of automobile air conditioning: during the use of the system, air will flow in the blower, the evaporation tank of the refrigeration system, the small water tank of the heating system and the air duct. As long as the air conditioning system blower is turned on or the air intake mode is selected to circulate in the room, air will enter the aforementioned system, regardless of whether the refrigeration unit is used.

Over time, the surface of the above-mentioned device accumulates a lot of dust, moisture, bacteria and other dirt, and will cause damage and allergic reactions to the human respiratory system and **, which directly affects the health of the occupants, and the air conditioning system itself will also have poor cooling effect and small air output and other failures.

In general, the cabin air filter is cleaned every 5,000 km or 3 months, and the cabin air filter is replaced every 20,000 km or 12 months. This ensures that you can enjoy a clean and clean interior environment and ensure your physical health.

The compressor compresses the gaseous freon into a gaseous freon at high temperature and high pressure, and then sends it to the condenser (outdoor unit) to dissipate heat and becomes liquid freon at room temperature and high pressure, so the outdoor unit blows hot air.

Then to the capillary, into the evaporator (indoor unit), because the freon from the capillary to the evaporator after the space suddenly increases, the pressure decreases, the liquid freon will vaporize, into gaseous low temperature freon, thereby absorbing a large amount of heat, the evaporator will become cold, the fan of the indoor unit will blow the indoor air from the evaporator, so the indoor unit blows out of the cold air; When the water vapor in the air meets the cold evaporator, it will condense into water droplets and flow out down the water pipe, which is why the air conditioner will produce water.

Then the gaseous freon returns to the compressor to continue compressing and continuing the cycle.

There is a component called the four-way valve during heating, so that the flow direction of Freon in the condenser and evaporator is opposite to that of refrigeration, so when heating, cold air is blown outdoors and hot air is blown in the indoor unit.

In fact, it is the principle of expelling heat during liquefaction (changing from a gas to a liquid state) and absorbing heat during vaporization (from a liquid to a gas) that I learned in junior high school physics.

The most fundamental principle is that the change of state of an object is accompanied by endothermic or exothermic treatment.

The working principle of air conditioner lifting is easy to understand as follows: Yu XiaoWhen the air conditioner is making cold air, the compressor exchanges the indoor gas into the compressor through the steam separation valve (the machine that exchanges the indoor temperature into the chassis), and the steam with higher temperature of these gases is connected to the refrigerator through the duct in the chassis through the work of the compressor, and the refrigerator starts to work, and through high pressure, the air is compressed, and the temperature rises, and the air becomes water vapor.

The temperature of these water vapors also slowly becomes colder, and then the water vapor filters out the unwanted mixed and vertical air through the filter, and enters the discharge gear through the pipe, and the cold air is discharged in the room, which is the working principle of the air conditioner, and then the chassis continuously circulates such steps to emit continuous cold air.

The structure of the air conditioner:Air conditioners are generally divided into large air conditioners and small air conditioners, their structures are similar, they are all constructed by a closed shell, the interior is mainly composed of compressors, refrigerators, filters, discharge gears, steam separation valves and its safety protection components, large air conditioners are larger, of course, the wind power it manufactures is also stronger, generally suitable for hotels, restaurants, cafes and other public occasions, small air conditioners are generally household type, less power consumption.

The compressor compresses the gaseous refrigerant into a gaseous state of high temperature and high pressure, and sends it to the condenser for cooling, and after cooling, it becomes a liquid refrigerant of medium temperature and high pressure into a drying bottle for filtration and dehumidification, and the medium temperature liquid refrigerant is throttled and depressurized by the expansion valve (throttling part) The gas-liquid mixture of low temperature and low pressure (liquid is more) absorbs the heat in the air through the evaporator and vaporizes into a gaseous state, and then returns to the compressor to continue compression and continue to circulate for refrigeration.

During heat pump heating, the four-way valve is used to change the circulation direction of the buried refrigerant, and the position of the suction and exhaust pipes of the refrigeration system is reversed, so that the indoor coil used as an evaporator during the original refrigeration work becomes a condenser during heating, and the refrigeration system absorbs heat outdoors and releases heat indoors to achieve the purpose of heating.

Air conditioning and refrigeration operation process

After the air conditioner is energized and closed, the low-pressure steam of the refrigerant in the refrigeration system is sucked in by the compressor and compressed into high-pressure steam and discharged to the condenser, and the indoor air is continuously circulated to achieve the purpose of reducing the temperature.

The outdoor air drawn in by the axial fan flows through the condenser, taking away the heat released by the refrigerant, causing the high-pressure refrigerant vapor to condense into a high-pressure liquid. The high-pressure liquid is sprayed into the evaporator after passing through the filter and throttling mechanism, and evaporates at the corresponding low pressure to absorb the surrounding heat. At the same time, the cross-flow fan continuously enters the auxiliary room of the evaporator for heat exchange, and the liquid responds to send the cooled air to the room.

In the scorching summer, air conditioning has now become the most indispensable household appliance in people's lives, but do you know what the working principle of air conditioning is when you use air conditioning, and understand the working principle of air conditioning in order to better use air conditioning. Here we will introduce to you the knowledge of the working principle of the air conditioner and how to carry out the maintenance of the air conditioner, I hope to help you!

First, the working principle of air conditioning.

Household air conditioners generally use mechanical compression refrigeration devices, and their basic components have four parts: compressor, evaporator, condenser and throttling device, which are interconnected, which is filled with refrigerant (also known as refrigeration working fluid). The compressor acts like a galloping heart to make the refrigerant flow continuously in the air conditioner like blood, so as to regulate the room temperature.

So how exactly does an air conditioner work?

First, the low-pressure gaseous refrigerant is sucked into the compressor and compressed into a high-temperature and high-pressure gas.

The gaseous refrigerant then flows to the outdoor condenser, where it gradually condenses into a high-pressure liquid as it dissipates heat to the outside.

Then, the pressure is lowered (and cooled at the same time) by the throttling device, and it becomes a mixture of gas and liquid at low temperature and low pressure. At this point, the gas-liquid mixed refrigerant can exert the "power" of air conditioning: it enters the evaporator in the room, and continuously vaporizes by absorbing the heat in the indoor air, so that the temperature of the room is lowered, and it also becomes a low-pressure gas and re-enters the compressor.

In this way, the air conditioner can continue to work.

The above is to share with you the working principle of the penitential air conditioner, understand the working principle, let's learn about the daily maintenance of the air conditioner!

2. Daily maintenance of air conditioners.

If you receive pressure from the outside world, it may cause the panel to deform, affect the passage of cold and warm air, and in serious cases, it will damage unimportant components. If you don't usually use it, keep the body of the air conditioner dry, clean the filter screen in time to avoid the accumulation of dust and reduce the service life of the air conditioner, and at the same time pull out the power plug of the air conditioner and remove the remote control battery to prevent accidental damage.

The above is for everyone, some knowledge about the working principle of air conditioning, I hope to help you.

How the air conditioner works:

Air conditioners are divided into single cooling air conditioners and cold and warm air conditioners, the working principle is the same, and most of the refrigerants used in air conditioners before were freon. The characteristic of Freon is that when it changes from a gaseous state to a liquid state, a large amount of heat is released.

When the liquid state changes from a gaseous state, it absorbs a large amount of heat. (i.e., first absorbing heat and gasification and then liquefiing and heat release) air conditioners are designed according to this principle.

The compressor compresses the gaseous refrigerant into a gaseous refrigerant with high temperature and high pressure, and then sends it to the condenser (outdoor unit) to become a liquid refrigerant at room temperature and high pressure after it is dispersed and vibrated, so the outdoor unit blows hot air.

Then to the capillary, into the evaporator (indoor unit), because the refrigerant from the capillary to the evaporator after the space suddenly increases, the pressure decreases, the liquid refrigerant will vaporize, into a gaseous low-temperature refrigerant, thereby absorbing a large amount of heat, the evaporator will become cold, the fan of the indoor unit will blow the indoor air from the evaporator, so the indoor unit blows out of the cold air.

When the water vapor in the air meets the cold evaporator, it will condense into water droplets and flow out down the water pipe, which is why the air conditioner will produce water.

There is a component called the four-way valve during heating, so that the flow direction of the refrigerant in the condenser and evaporator is opposite to that of refrigeration, so when heating, the outdoor air blows cold air, and the indoor unit blows hot air.

In fact, it is the principle of excreting heat during liquefaction (changing from gas to liquid) and absorbing heat during vaporization (from liquid to gas) that I learned in junior high school physics.

**Principle and schematic diagram of air conditioning system (including terminal equipment), Tree Bird Education HVAC Design Teacher Du.

To put it simply, the liquefaction and vaporization learned in physics to absorb heat and dissipate heat, and the compressor to keep them circulating.

In the refrigerant (freon) cycle, the refrigerant (freon) is vaporized and evaporated to absorb heat, so that the indoor air is cooled down, and then circulated by the compressor pressurized liquefaction and exothermia, and is transported outdoors by the exhaust fan, and so on.