Liquid impact-type air microorganism sampler

Abstract

The invention relates to a liquid impact-type air microorganism sampler. The liquid impact-type air microorganism sampler comprises a sampling bottle, an air inlet guide pipe, an air outlet guide pipe, a locknut, an O-shaped seal ring, a backup washer and a cylindrical spray nozzle, wherein the air inlet guide pipe and the air outlet guide pipe are respectively embedded at the upper end and one side of a sampling bottle body in a sealing manner, and the air inlet guide pipe extends into the bottle body; the bottom of the air inlet guide pipe is sleeved with the cylindrical spray nozzle, the cylindrical spray nozzle is connected to the air inlet guide pipe in a sealing manner through a locknut which is cushioned with the O-shaped seal ring and the backup washer; six small circular spray nozzles are drilled in a base plate of the cylindrical spray nozzle, and drilling directions of the base plate need to meet certain conditions. The liquid impact-type air microorganism sampler is clear in structure and easy to machine; a rotary type sampling method is used for replacing a conventional impact-type sampling method; the cylindrical spray nozzle can be correspondingly adjusted and changed according to sampling duration and sampling flow rate so as to meet microorganism sampling under different conditions; the liquid impact-type air microorganism sampler has relatively high capture rate of air microorganisms in low-concentration environments and relatively high application value and is particularly suitable for sampling of microorganisms of in field environments.

Description

technical field [0001] The invention relates to the field of air microorganism detection, in particular to a liquid impact microorganism sampler suitable for low-concentration environments. Background technique [0002] The pollution and harm of air microorganisms to the environment, especially the harm to the health of the population has become increasingly serious and has attracted the attention of all parties. In the active biological sampling operation, facing various unimagined environments such as toxic gases, unknown bacteria, high temperature and low temperature, it is dangerous to a certain extent, and the degree of danger in the military field is even more unpredictable. Therefore, it is very important to accurately monitor the microbial pollution in the indoor and outdoor ambient air to formulate environmental standards, eliminate hazards and protect people's health. [0003] In order to accurately detect microorganisms in the air, various microorganism samplers ...

AI Technical Summary

Problems solved by technology

At present, most liquid impact air samplers are only suitable for microbial sampling in high-concentration environments, and the sampling flow rate is low. For low-concentration environments, especially in the wild, the sampling efficiency of air microorganisms is low, and the effect is not ideal.

Images