Highly effective particle filter biological detection method and isolation device detection system

Abstract

The invention relates to a biological detecting method of a high-efficiency particulate filter and a detecting system of an isolating device. The biological detecting method of the invention is that a microorganism aerosol generator and an air microorganism sampler are arranged at the front end of the high-efficiency particulate filter at an exhaust outlet of the negative-pressure isolating device and simultaneously an air microorganism sampler is arranged at the back end of the high-efficiency particulate filter; when wind is fed into the negative-pressure isolating device, analog indicating microorganism are generated manually by the air microorganism aerosol generator, and the analog indicating microorganisms are respectively bacteria and virus that do not exist in natural air and do not have biological hazard to human, animals and environments; under the detection situations of two analog indicating microorganisms which are respectively bacteria and virus, the analog indicating microorganisms are collected by culture dishes inside the air microorganism samplers that are arranged at the front and back ends of the high-efficiency particulate filter; counting after the cultivation is implemented; proportional relation between the counting results before and after the filtering of the high-efficiency particulate filter is computed, thus obtaining the microorganism filtering efficiency of the high-efficiency particulate filter.

Description

technical field [0001] The invention relates to a biological detection method and a detection device, in particular to a biological detection method of a high-efficiency particle filter and a detection system for an animal feeding negative pressure isolation device. Background technique [0002] In medical microbiology research and experiments, animal infection experiments are often carried out. Infected animals must be kept in an isolation device for feeding infected animals. The isolation device for feeding infected animals is a must-have biosafety protection for the safe feeding of infected animals in pathogenic microbiology laboratories. The equipment is the first-level protective barrier of the third-level and fourth-level biosafety laboratories. The negative pressure exhaust filtration system of the infected animal breeding isolation device can filter and purify pathogenic microorganism aerosols, which is directly related to the biosafety laboratory. protection of the ...

AI Technical Summary

Problems solved by technology

Therefore, the detection and evaluation results of the high-efficiency particle filter in the exhaust system of the negative pressure infection animal breeding isolation device by the existing method are often inconsistent with the actual filtering effect of the high-efficiency particle filter on microbial aerosols.

At the same time, the existing detection methods only perform progressive scan detection on the high-efficiency particle filter, and cannot systematically detect the structural leakage, damage leakage, and material structural leakage of the entire high-efficiency particle filter.

In addition, the physical detection method also has the characteristics of complex on-site operation and high requirements for instruments.

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