Sterile air interchanger with multi-layer filtering function

Abstract

The utility model relates to the technical field of sterile ventilation, and discloses a sterile ventilation device with multilayer filtration, which comprises a water tank, the surface of the water tank is provided with a through hole, an air inlet pipe is fixedly connected in the through hole, the end part of the air inlet pipe is fixedly connected with a filter assembly, the filter assembly comprises a mounting cylinder, and the mounting cylinder is fixedly connected with the air inlet pipe. A fan and a plurality of layers of filter plates are fixedly connected to the interior of the mounting cylinder, a rotating shaft is fixedly connected to the output end of the fan, and a sleeve is fixedly connected to the end of the rotating shaft. According to the utility model, through the continuous operation of the fan, the rotating shaft drives the sleeve to rotate, the sleeve drives the mounting plate and the cleaning brush to synchronously rotate through the connecting shaft, the cleaning brush rotates on the side wall of the multi-layer filter plate, dust attached to the filter plate is brushed off, and through the tension of the reset spring, the cleaning brush is ensured to be always tightly attached to the filter plate, so that filter holes are prevented from being blocked; the multi-layer filter plate can keep high-efficiency filtering performance for a long time, and the replacement frequency is reduced.

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