Fresh air ventilator

Abstract

The invention discloses a fresh air ventilator. The ventilator comprises an air return bin, a fresh air bin, an indoor air return inlet, an outdoor fresh air inlet, an air return opening and closing valve plate, a fresh air opening and closing valve plate, a stainless steel wire mesh, a first steel wire ball filter screen, a soaking steel wire ball filter screen, a pressure difference sensor at the end of a fresh air mold, a second steel wire ball filter screen, an air return end pressure difference sensor, an air supply bin, a centrifugal fan, a first indoor air supply outlet, and a second indoor air supply outlet and a coupler; the air return bin is located above the fresh air bin; the right side of the air return bin and the fresh air bin is provided with the air supply bin; and the stainless steel wire mesh, the first steel wire ball filter screen, the soaking steel wire ball filter screen, the pressure difference sensor at the end of the fresh air mold, the second steel wire ballfilter screen, and the air return end pressure difference sensor are arranged between the air return bin, the fresh air bin and the air supply bin. The fresh air ventilator has the advantages of prompting the reasonable replacement time of the filter screens, adjusting the air return volume and pressure of the fresh air, increasing the specific surface area of the filter screens, improving the adsorption capacity of the filter screens, repeatedly using the filter screens and having strong ability of reducing use cost.

Description

technical field [0001] The invention relates to a fresh air fan, in particular, it has the ability to prompt a reasonable filter screen replacement time, adjust the fresh air return air volume and pressure, increase the specific surface area of ​​the filter screen, improve the adsorption capacity of the filter screen, reuse the filter screen, and reduce the use cost. Strong fresh air blower. Background technique [0002] At present, there are many types of air filters on the market, and the use of filter media is also varied. Most products use three-stage filtration: steel mesh, activated carbon adsorption, and glass fiber membrane HEPA. The above three-stage filtration is not perfect in filtering air fibers, coarse particles, and dust, and there are many defects in the post-processing: 1. Poor filtration accuracy of fine dust; 2. Absorbing moisture in the air to breed mites and mold; 3. Replacement The post-recycling utilization rate is low, and the treatment and degradati...

AI Technical Summary

Problems solved by technology

The above three-stage filtration is not perfect in filtering air fibers, coarse particles, and dust, and there are many defects in the post-processing: 1. Poor filtration accuracy of fine dust; 2. Absorbing moisture in the air to breed mites and mold; 3. Replacement The post-recycling utilization rate is low, the treatment and degradation are difficult, and new pollution is brought

Indoor removable air filters can't solve the problem of polluted air entering the room, and the air quality in other rooms cannot be guaranteed

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