After the fresh air dehumidifier dehumidifies the outdoor air, the relatively dry air that reaches the target relative humidity is sent indoors through the fresh air duct to meet the comfort or technical indoor environmental humidity requirements. The dehumidified air is generally used in indoor places that require air purification.

For fresh air dehumidifiers, in many occasions, the fresh air volume requirements are very high, and some directly require a fresh air supply system. The fresh air supply puts forward high requirements for the treatment of temperature and humidity, and the current central air conditioning system cannot be handled at the same time. temperature and humidity issues. Some choose to lower the outlet air temperature, and then use electric heating to increase the temperature to achieve the purpose of lowering the relative humidity.

 In an environment with very low fresh air volume requirements, this method can be used, but it is also very energy-intensive. Nor is it desirable. If it is a fresh air system, it simply cannot meet the requirements. Assuming that the temperature of the cold outlet air is 18 degrees, the relative humidity is higher than 95% at this time, and when the temperature rises to 23 degrees, the relative humidity should be above 70%. Therefore, the independent development of air handling units for fresh air is necessary.

 Through years of industry practice, it is possible to deal with the new air treatment requirements of different process requirements, and the first thing to do is to support the independent pipeline dehumidification section of the central air conditioning system. For the duct ventilation and dehumidification unit of the fresh air ventilator, a fresh air multi-stage treatment air conditioning unit has been developed for the space with temperature requirements.

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