Cyclic-purification fresh air handling device

Abstract

The invention discloses a cyclic-purification fresh air handling device which comprises a primary filter used for filtering fresh air entering from outdoor. An electrostatic filter, an effectively filter and an active carbon filter are sequentially arranged in the rear of the primary filter at intervals, a variable frequency centrifugal fan is arranged in the rear of the active carbon filter, a kitchen-air-supply electric airtight valve and a personnel-room-air-supply electric airtight valve are arranged in the rear of the variable frequency centrifugal fan, a fresh-air electric airtight valve is arranged on the front side of the primary filter, and a return-air electric airtight valve communicated indoor is arranged between the primary filter and the electrostatic filter. By the arrangement, indoor air can be purified rapidly and cyclically with large air flow, minimum fresh air is supplied to personnel, the device can be operated according to minimum fresh air requirement of the personnel after indoor pollutants reach the standard, and targeted and timely air supplement is performed when an indoor kitchen range hood exhausts gas greatly.

Description

technical field [0001] The invention belongs to a fresh air purification device, in particular to a circulating purification fresh air processing device. Background technique [0002] The air quality of the indoor living environment of modern families faces several problems that need to be solved: pm2.5 pollution under polluted weather conditions, indoor personnel’s demand for outdoor fresh air, and formaldehyde pollution from interior decoration materials. Indoor personnel’s demand for outdoor fresh air can be met by opening windows for ventilation or natural air leakage through door and window gaps. Indoor PM2.5 is mostly removed by high-efficiency filters, and indoor formaldehyde pollution can be removed by using activated carbon filters and introducing outdoor air for ventilation. Reduce indoor pollution concentration. At present, the two mainstream solution combinations include plan one: open windows for ventilation and indoor air purifier; plan two: equip fresh air un...

AI Technical Summary

Problems solved by technology

If the fresh air volume meets the fresh air demand of personnel, the indoor formaldehyde pollution will not be effectively discharged due to the small fresh air volume, and once the window is opened and other operations cause a sudden increase in the indoor PM2.5 value, the elimination process will be too long

If the amount of fresh air is artificially increased, it will increase the energy consumption of indoor heating, air conditioning and fresh air fans, and at the same time accelerate the loss of consumables such as filters

[0005] In addition, the above two schemes still have a common disadvantage in the actual application process, that is: range hoods are often equipped with range hoods in family kitchens, and their air volume is relatively large, generally 11-18m 3 / min

When the range hood is turned on, it is inevitable that a large amount of outdoor polluted air will be forced into the interior of the scheme 1 and the scheme 2 with a small air volume, resulting in fluctuations in indoor air quality.

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