Method for treating harmful aerosol in relatively sealed space

Abstract

The invention relates to a method for treating harmful aerosol in a relatively sealed space, which comprises: (a) forming a fresh air supply opening in a side wall which forms the relatively sealed space, and charging fresh air into the relatively sealed space from the fresh air supply opening; (b), arranging an air flow processing unit on the side, opposite to the fresh air supply opening, of the relatively sealed space, wherein the air flow processing unit comprises a sealed tank box arranged on the side wall of the relatively sealed space and a filtering and sterilizing device and a fan which are arranged in the seal tank body in turn along the flowing direction of the air flow, and the sealed box body is provided with an air outlet channel; and (c) controlling the ratio of the inlet air volume at the fresh air supply opening to the air outlet volume discharged from the air outlet channel to generate an oriented air flow flowing from the fresh air supply opening side to the air flow processing unit in the relatively sealed space, wherein the oriented air flow is discharged into the atmosphere from the air outlet channel after passing through the air flow processing unit. The method of the invention can effectively avoid the diffusion of the aerosol and has better treatment effect and low cost.

Description

Technical field [0001] The invention belongs to the technical field of environmental purification, and particularly relates to a processing method for treating harmful aerosols in a small space. Background technique [0002] In the prior art, the conventional treatment of high-concentration aerosols in a specific space is drawn by a fan, and directly discharged out of the space, and the concentration is reduced by the dilution of the atmosphere. No treatment is done on the quality of the discharged air. While the space air is being extracted, the same flow of air is added into the space. The pressure difference between inside and outside the space is 0, which is an equal pressure area. This is completely feasible for harmless aerosols or beneficial bacteria. However, if the aerosols are infectious through the air, such as patient saliva aerosols containing influenza A bacteria, the harmful aerosols will be treated in the above manner. It spreads around by the fan. Because it i...

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Problems solved by technology

Because it is isobaric, it may also spread directly to the surrounding space, causing the consequences of diffusion

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