How does the dehumidification function of an air conditioner work?

Air conditioning dehumidification is carried out by using the principle that condensate will form condensate on the surface of colder objects when water vapor is cold. The specific process is that the air-conditioning compressor makes a small amount of refrigerant into the indoor unit, the indoor unit sucks in the air with relatively large indoor humidity through the fan operation, and after the low-temperature evaporator, the water vapor in the air will condense on the surface of the evaporator, when the condensed condensate is a lot, the condensate will become a larger condensate water droplet, and these water droplets will flow down to the water tray when they can no longer adsorb the surface of the evaporator blades, and then flow down the outlet of the water tray to the drain pipe and discharge to the outdoors. When the air conditioner works continuously, the water vapor from the room is gradually discharged to the outside, so that the indoor air is dry.

In fact, air conditioning dehumidification is a refrigeration state, but the air outlet is very small. Dehumidification Air Conditioner Dehumidification & Refrigeration:

Relatively speaking, when the air conditioner is in the lowest set temperature cooling state, it is actually dehumidifying at the same time, and it consumes electricity if it runs for a long time; When the set temperature of the air conditioner is running in the highest refrigeration state, the running time is shorter, and relatively speaking, it saves electricity in the lowest refrigeration state.

In addition, because the air conditioner is in the dehumidification operation state, the design (default humidity) of the computer board chip of the air conditioner is 60%-65% (suitable humidity for the human body), when the humidity is lower than this, the air conditioner will stop running, and it will no longer consume electricity. However, when the refrigeration state is operated at the set minimum temperature, it takes a long time for the air conditioner to complete the operation at the set temperature, so the power consumption is large; On the contrary, when the maximum temperature is set in the refrigeration state of the air conditioner, the air conditioner will reach the maximum setting effect in a short time after operation, and the air conditioner compressor will shut down, and the power consumption will be less (it will save electricity than in the dehumidification state).

In addition, the level of ambient humidity also affects the power consumption of the dehumidification function of the air conditioner. So it's a relative concept. Can't be too absolute.

In addition to the heating and cooling functions that we are familiar with, air conditioning also has a powerful function, that is, the dehumidification function of air conditioning. If you want to have an in-depth understanding of the dehumidification function of the air conditioner, you must first understand what is the principle of the dehumidification function of the air conditioner? Then you also need to understand the correct use of the air conditioner dehumidification function, as well as some precautions in the use of the air conditioner dehumidification function.

The principle of the dehumidification function of the air conditioner

Nowadays, many air conditioners have an independent dehumidification function, which actually works by reheating the air that has been cooled through the evaporator to the original temperature, and then sending the lead back into the room. That is to say, the indoor fan has been running at a low speed, the compressor is started and stopped, and the refrigeration system is used for intermittent refrigeration cycle, and most of the refrigeration capacity generated is used to balance the latent heat of the indoor air, that is, the water vapor becomes condensed water. A small part is used to balance sensible heat, i.e. to lower some of the room temperature.

This constant cycle keeps the room temperature around the set point and at the same time removes a lot of moisture from the air. In this way, the indoor environment remains relatively constant as the humidity drops.

How to use the dehumidification function of the air conditioner

When the weather is humid and muggy, you can press the dehumidification function on the remote control of the air conditioner, at this time, the moisture in the air will be quickly discharged outside, and we will not feel uncomfortable because of too much moisture, and the air conditioner will continue to blow cold air to keep the indoor temperature suitable, and at the same time, the compressor and outdoor machine will stop running for a period of time, which saves a lot of electricity compared to the simple refrigeration mode.

Precautions for using air conditioners for dehumidification

When using the dehumidification mode of the air conditioner, it should be noted that if the outdoor temperature is very high and the air is very dry, do not turn on the dehumidification mode for a long time, so as not to damage the compression and shrinking machine, and generally use the ordinary refrigeration mode when the outdoor temperature is higher than 40 degrees. Only at night when the temperature is relatively low and the humidity is high, the dehumidification mode can be turned on in time to achieve the effect of adjusting the temperature and humidity of the room. How many degrees does the dehumidification temperature of the air conditioner open, under normal circumstances, most of the air conditioning dehumidification modes are automatic modes, and you don't need to set them yourself, if you need to set them yourself, then it is more appropriate to set them at about 4 degrees lower than the room temperature.

However, if you use the air conditioner dehumidification mode for a long time, it will damage the air conditioner compressor, and it is generally enough to use it for 1-2 hours at a time.

Experts said that the effect of the air conditioning dehumidification function is still very good, if you feel that the humidity at home is very heavy, you can turn on the air conditioning dehumidification function. Generally, there is a button sign for dehumidification on the remote control of the air conditioner, and when we turn on the dehumidification function of the air conditioner, we only need to use the remote control of the air conditioner to operate. The precautions for the use of the dehumidification function of the air conditioner must be understood, and the correct use of the dehumidification function of the air conditioner has a good protective effect on the air conditioner.

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The main purpose of air conditioning dehumidification is to reduce the quiet moisture in the side cavity of the room, and the cooling is supplemented by slag transportation.

Dehumidification mode can be used in spring, summer, autumn and winter, dehumidification mode is relatively very power-saving, it can be used instead of electric fans, although the main function of dehumidification mode is dehumidification, but it can also play a cooling role, when the indoor is not very hot, you can take the dehumidification mode, which will make indoor electricity more saving, and the refrigeration mode is mainly based on refrigeration, so it also consumes more electricity.

The "dehumidification mode" of the air conditioner can be understood as the refrigeration mode, but it is still a little different from the real "refrigeration mode", if the "dehumidification mode" is turned on, it is equivalent to removing part of the moisture in the air while cooling, so that the air "humidity" content delivered by the air conditioner to the room becomes lower. Therefore, the so-called "dehumidification mode" refers to the removal of "moisture" from the air while refrigerating.

The principle of "dehumidification" of air conditioners

Ordinary household air conditioners generally have three modes, namely refrigeration, dehumidification, and heating. When the user sets the air conditioner to the "refrigeration" state, the refrigerant absorbs the heat in the air through a special structure under the action of the air compressor to achieve the effect of cooling the air, and the cooled air will be transported to the room.

When the user sets the air conditioner to the "heating" state, the refrigerant liquid agent runs in reverse through a special structure under the action of the air compressor, transferring the heat in the refrigerant to the air or water, and the heated air will be transported to the room. The "dehumidification mode" is actually the "refrigeration mode", and the "evaporator" will do extra work during the refrigeration process.

In the process of refrigeration, it will become cold, and the water vapor (moisture) contained in the air will condense on the evaporator and then be discharged down the pipe, which is also the reason for the drainage of the air conditioner, which is also the process of dehumidification.

<>1. The working principle is to reheat the air that has been cooled through the evaporator to the original temperature, and then send it into the room. That is to say, the indoor fan has been running at a low speed, the compressor is turned on and off, and the refrigeration system has an intermittent refrigeration cycle, and most of the cooling capacity generated is used to balance the latent heat of the indoor air, that is, the water vapor becomes condensate.

2. In summer, there is a lot of humidity in the air, especially after rain and sultry weather. The suitable humidity for the human body is about 60-70%, and if the humidity is too high, the human body will feel uncomfortable. The word "air conditioner", in fact it is "room air conditioner".

At the beginning of the invention, air conditioners were mainly used for three purposes: refrigeration, heating, and dehumidification. There are many different types of air conditioners on the market today, but even the most simplified air conditioner models have a dehumidification function.

For the real use of the dehumidification function, many friends may not know too much about it, let alone use it correctly. At this time, if the air conditioner is turned on, the moisture in the air will adhere to the low temperature of the air conditioner's evaporator and condense into dew, and then discharge it outside through the water collection tray and pipes. Therefore, the erection of the air conditioner in the process of refrigeration and banquet will play a role in dehumidification at the same time.

1. The dehumidification principle of air conditioning refers to the cooling air being heated again through the evaporator to reach the original temperature and then sent into the room to achieve the effect of dehumidification.

2. After the air conditioner is adjusted to dehumidification mode, the indoor temperature will also drop, and the compressor is also in a working state of start-up and stop-stop.

3. Air conditioning dehumidification means that the whole air conditioner is in a dehumidification state, and the fan of the indoor unit runs very slowly, so as to facilitate the condensation of water vapor in the air into liquid to achieve the effect of dehumidification. Generally, when the air conditioner reaches the set temperature in dehumidification mode, the outdoor machine will stop running to prevent the dew on the condenser from evaporating again.