Air micro organism purifying effect evaluation system and application thereof

Abstract

The invention relates to an air micro organism purifying effect evaluation system, mainly comprising three parts: a machine room, a personnel operation zone and an exposed zone. The system of the invention not only can research air micro organism aerosol and evaluate the effect of air micro organism purifying device, but also can be taken as a microbiological lab capable of effectively protectingthe environment and operational personnel in the lab, thus realizing function division and providing an airtight work environment in relatively negative pressure.

Description

technical field [0001] The invention relates to a microbiological laboratory capable of conducting research on air microbial aerosol and evaluating the effect of an air microbial purification device, and can effectively protect the environment and laboratory operators, in particular to an air microbial purification effect evaluation system. Background technique [0002] Air is an important medium for the transmission of microorganisms, and many human pathogenic bacteria are transmitted through the air, causing disease epidemics. For example, SARS, which was prevalent in my country, is a disease that seriously endangers human health and is transmitted through the air through droplets. Microorganisms can be transmitted through aerosols in the air. There are many types of microorganisms, and their survivability and toxicity in the environment are also varied. The changes of microbial aerosols in the air are also diverse. Therefore, it is necessary to strictly control environme...

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Problems solved by technology

However, various air microbial purification devices have great differences in the purification effect of microorganisms in the air. At present, there is no unified evaluation method in my country, and there is no air microbiology laboratory suitable for the evaluation of the effect of air microbial purification devices.

The experimental site generally adopted in China is the aerosol cabinet stipulated in the "Disinfection Technical Specifications" (2002 edition). Small, only 1m 3 size, it is difficult to ensure the airtight effect during the experiment; (2) it is difficult to ensure the uniform distribution of microbial aerosols inside the complex sampling device; (3) it cannot be used for the evaluation of air microbial purification devices; (4) the internal The structure and disinfection methods are not clearly defined

[0004] In the prior art, international application numbers PCT / IB2003 / 001250, JP2002-1045306, JP2002-326078, and JP2003-102054 all involve methods and devices for evaluating microbial disinfection and purification effects, but the common problems are 1. No protective measures are taken for the leak, or simply plugged with an additional container outside the detection device, which can only reduce the leak of microorganisms, but cannot fundamentally avoid it.

However, for some high-risk microorganisms, such as highly pathogenic infectious bacteria, sometimes the leakage of even one individual can lead to very serious consequences. Therefore, the leakage problem must be fundamentally solved

2. There are no facilities for self-sterilization in the device. Therefore, the disinfection and cleaning of the device itself is very inconvenient, which brings potential error sources to actual use; 3. The intersection of the walls in the device is not specified. From the embodiment It can be seen that they are all at right angles, which are easy to cause the accumulation of dust and microorganisms, and the right angles are not conducive to the uniform distribution of the aerosol stirred by the agitator; 4. The microbial sampling pipe is long and has a 90° elbow, which results in a large sampling loss

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