Full-automatic air microbe sampler

Abstract

The invention discloses a full-automatic air microbe sampler. The sampler comprises a sample collection system and a sample liquid distribution system; wherein the sample collection system comprises a sampling head, a blower, an impact sampling bottle, a liquid storage bottle, an injection pump and a sampling pump; and two outlets of the sampling head are respectively communicated with the blower and the impact sampling bottle; an air inlet of the sampling pump is communicated with the impact sampling bottle; the liquid storage bottle is consequentially communicated with the injection pump and the impact sampling bottle; the sample liquid distribution system comprises a peristaltic pump and an injection device; the peristaltic pump is communicated with the impact sampling bottle, and an outlet of the peristaltic pump is connected with the injection device through a pipeline. According to the full-automatic air microbe sampler, the sampling head can utilize a two-stage virtual impact theory, so that wall damage of particles is reduced, and high particle diameter cutting efficiency is obtained; simultaneously, sampling flow is large, microbial particle collection density is improved, further experimental analysis is facilitated, and sensitivity and accuracy of devices are improved.

Description

technical field [0001] The invention relates to a fully automatic air microbial sampler, in particular to an air microbial sampler used for ambient air sampling in biosafety laboratories so as to detect and analyze possible biohazardous substances. Background technique [0002] With the continuous development of human society, more and more new infectious diseases have emerged and spread faster and faster, threatening the life and health of all human beings. The outbreak of SARS in 2003, highly pathogenic avian influenza in 2004, and H1N1 influenza in 2009 have posed real and potential threats to the health, economic development and even national biosecurity of people all over the world. In response to emerging infectious diseases, countries around the world have established a large number of high-level biosafety laboratories, which has also caused environmental pollution and human health hazards from laboratory exhaust gas, such as the former Soviet Union Sverdlovsk in 1979...

AI Technical Summary

Problems solved by technology

However, at present, the microbial samplers that are widely used are filtered through the filter membrane, and the collected bacteria are less, which is not conducive to detection, or the impact sampler is used, which belongs to inertial impact, which is easy to cause particle retention and cannot achieve the purpose of complete separation; air flow If it is too large, it will easily dry up the moisture adhering to the sampling medium, causing the collected particles to resuspend and escape with the airflow, or the microorganisms will dry out and die due to water loss, and the sample collected by a small flow sampler will easily cause missed detection

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