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Dehumidification performance difference between dehumidifier and air conditioner
2018-05-12
 
One: dehumidifier
 
The independent dehumidifier mode uses electric heating or heat exchange to heat the air outlet. The control will be more complicated and the design cost is higher. However, this temperature compensation will make the room temperature fluctuation relatively small, suitable for the temperature is not high, but the humidity is too Use when you are old. Operating in this independent dehumidification mode, the refrigeration system is in an efficient operation state, and the operating conditions of the evaporator and the condenser are relatively reasonable, and the energy efficiency ratio is high. The dehumidifier works by cooling the inside of the machine and analyzing the water in the air. The temperature of the space will rise slightly, but the temperature difference is not obvious. It is more suitable for the wet season outside the summer, and the electricity consumption is relatively low.
 
External circulation of the dehumidifier:
 
When the dehumidifier is normally turned on → through the operation of the fan → humid air is drawn in from the air inlet → through the evaporator → evaporator to adsorb the moisture in the air on the aluminum sheet → become dry air → heat through the condenser → Blow out from the air outlet. The main difference is that the dehumidifier is used to dehumidify and adjust the humidity, while the air conditioner is mainly used to adjust the temperature!
 
Internal circulation of the dehumidifier:
 
The dehumidifier discharges high-temperature and high-pressure gas through the operation of the compressor → exhaust port → enters the condenser to cool → becomes low-temperature and high-pressure gas → cuts through the capillary → turns into a low-temperature and low-pressure liquid → evaporates heat through the evaporator → returns to the compressor It becomes a low-temperature and low-pressure gas. This cycle is the internal circulation of the dehumidifier.
 
Two: air conditioning dehumidification
 
Compared with the independent dehumidification mode, the cooling mode, as the basic function of the air conditioner, has lower requirements on the structural design and control mode of the air conditioner, and the cost is low. However, in this way, the purpose of dehumidification is inevitable, which will inevitably cause the room temperature to drop. This is not practical and wastes power when the temperature is not high. In fact, the dehumidification function in the cooling mode is only a by-product, and does not increase the cost of the air conditioner. The main function of the air conditioner is to control the temperature, and the dehumidification is a secondary function. The dehumidifier is a small part of the air conditioner. Not the same as dehumidification:
 
The air conditioner cannot dehumidify below 18 degrees, and the dehumidifier is wide temperature dehumidification.
 
The most important thing is that the air conditioning dehumidification effect is not obvious, and there is no professional dehumidifier effect.
 
Air conditioning dehumidification consumes a large amount of electricity.
 
Air conditioning dehumidification, but not control of humidity, you must know that low humidity is harmful to the human body.
 
Through the above analysis, we can conclude that although the air conditioner has the function of dehumidification, it cannot completely replace the dehumidifier.
 
High-end office buildings, villas, hotels, laboratories:
 
In the northern part of the country, dusty weather is frequent. Heating and dry indoor air have adverse effects on people's health, and indoor air quality needs to be improved. In the environment of room temperature 20 ° C ~ 26 ° C, relative humidity 40% RH ~ 60% RH, living and working feel comfortable, high work efficiency.



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