All-year ventilation treatment air conditioning unit for dry-heat cold and cold climate region and application method thereof

Abstract

The invention discloses an all-year ventilation treatment air conditioning unit for a dry-heat cold climate region. The all-year ventilation treatment air conditioning unit comprises a ventilation airduct, an air return air duct and a heat recovery device, wherein the ventilation air duct is sequentially provided with a ventilation opening, a ventilation filtering section, a preheating section, asurface cooling section, a ventilation direct evaporation section, a heating section and an air supply fan section, and the air return air duct is sequentially provided with a return air inlet, an air return filter section, a ventilation direct evaporation section and an exhaust fan section; the heat recovery device is arranged between the preheating section and the surface cooling section in theventilation air duct, and the heat recovery device is arranged between the direct evaporation and the exhaust fan section in the air return air duct. The invention further discloses an application method of the all-year ventilation treatment air conditioning unit for the dry-heat cold and cold climate region. According to the all-year ventilation treatment air conditioning unit and for the dry-heat cold and cold climate region and application method thereof, a set of ventilation treatment machine air conditioning unit can be shared in winter and summer, the use is safe and reliable in all-year, the all-year ventilation energy consumption is less, the operation is economical and environment-friendly, and the quality of indoor air in winter is fully guaranteed.

Description

Technical field [0001] The invention relates to the technical field of air-conditioning equipment, and particularly relates to a year-round treatment of air-conditioning units with fresh air in dry-heat and severe-cold-climate areas and a use method. Background technique [0002] Outdoor air in hot dry climate zone has low relative humidity and low moisture content. Water is easy to evaporate in contact with air. When the air is humidified again, the water evaporates and absorbs heat to cool the air. Outdoor air renewable energy (evaporative cooling) in hot dry climate zones is large in scale, widely distributed, sustainable in use, clean and pollution-free. [0003] Evaporative cooling air-conditioning technology is widely used in hot and dry climate areas with its unique advantages. However, these areas have long winters and belong to severe cold or cold climate areas. The existing dry heat and severe cold climate areas use fresh air to treat air conditioning units throughout the...

AI Technical Summary

Problems solved by technology

In severe cold and cold areas, the indoor air quality can be improved by increasing the fresh air volume in summer, so as to meet the requirements of the "Indoor Air Quality Standard" GB / T18883-2002. In winter, in order to meet the indoor temperature requirements and reduce winter heat loss, fresh air is usually not used; With the improvement of building airtightness, the amount of air leakage from windows and other parts is decreasing day by day, and the indoor air is not circulated for a long time, which will inevitably cause the concentration of indoor CO2, PM2. air quality

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