Impact type air microorganism sampling device

Abstract

The invention discloses an impact type air microorganism sampling device, and relates to the technical field of microorganism sampling. The device comprises a sampling part, a humidifying part, an impacting part, an electric control box and a thermostatic part, the impactor comprises an annular sealing plate, a cylindrical outer shell, a circular limiting plate, an annular filtering plate and a funnel accelerating plate. The invention is provided with a impurity filter screen and a funnel sampling port to expand the sampling range, filter impurities in air and improve the sampling efficiency and sampling quality. The invention is provided with a humidifying part and a gas-liquid mixing cavity to wrap the microorganisms in aerosol, so that when air is dry, the impact is buffered, which hasa good protective effect on the microorganisms. The invention is provided with a insulation cover, a water-bath box to keep the culture dish at a constant temperature, so that the propagation efficiency of microorganisms is improved and smooth sampling is ensured. The invention is provided with a first accelerating tube and a funnel accelerating plate, so that gas impacts the culture dish with uniform stress, and microorganisms are uniformly distributed in the culture dish.

Description

technical field [0001] The invention belongs to the technical field of microorganism sampling, and in particular relates to an impact type air microorganism sampling device. Background technique [0002] Microorganisms, as important organisms involved in material cycle, play a very important role in maintaining the ecological balance of nature. The vast majority of microorganisms exist in the soil, and a small number of microorganisms exist in the bottom layer of the atmosphere in the form of aerosols, and some of them are pathogenic, which will threaten human health when they reach a certain concentration. Therefore, timely, simple and accurate monitoring of the air microbial composition in the environment is of great significance to protect people's health. [0003] Efficient and comprehensive sampling of air microorganisms is the premise for accurate detection of air microorganisms. According to different sampling principles, commonly used air microbial samplers can be ...

AI Technical Summary

Problems solved by technology

[0009] The object of the present invention is to provide an impact type air microbial sampling device, through the humidification part, the impact part and the constant temperature part, to solve the existing sampling efficiency is not high, the sampling quality is poor; microorganisms are easy to die due to violent impact; The problem of low reproduction rate of microorganisms captured in

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