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Experiment table for evaluating microbial filtration performance of air filter for ventilation

A microbial filtration and air filter technology, which is applied to instruments, scientific instruments, measuring devices, etc., can solve problems such as imperfect microbial filtration performance testing

Pending Publication Date: 2021-02-26
TIANJIN CHENGJIAN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At this stage, many studies on microbial filtration focus on the detection device of microbial filtration materials, and the performance test of microbial filtration is not yet perfect.

Method used

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  • Experiment table for evaluating microbial filtration performance of air filter for ventilation
  • Experiment table for evaluating microbial filtration performance of air filter for ventilation
  • Experiment table for evaluating microbial filtration performance of air filter for ventilation

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0015] The present invention will be further described below in conjunction with the accompanying drawings.

[0016] Such as figure 1 As shown, a fan is placed in the fan box 1, and the air outlet of the fan is connected to the nozzle box 2 through the air duct. In the box of section 4; the upper end of the spray nozzle of the microbial aerosol generator is provided with a nozzle hole, and the speed of the air flow through this becomes faster, and the liquid is sprayed out by the jet air flow, forming a microbial aerosol that is emitted from the upper elbow; the nozzle The top of the box is connected to the air inlet of the air duct 19 provided with the valve 20, and the air outlet of the air duct 19 is connected to the downstream sampling section 8; the right side of the nozzle box is successively provided with the dust generating section 4, the upstream mixing section 5, the upstream sampling section 6, The filter to be tested 7, the downstream sampling section 8, the termi...

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PUM

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Abstract

The invention discloses an experiment table for evaluating the microbial filtration performance of an air filter for ventilation. The system comprises an air volume control system, a microbial aerosolgeneration system, a microbial sampling system, an environmental parameter measurement system, a disinfection and sterilization system and a data recording and acquisition system, wherein the fan ispositioned at the forefront of the whole experiment table, and the microbial aerosol generating system consists of a generator, a host and a tripod; the environmental parameter measurement system comprises a pressure transmitter, a temperature and humidity transmitter and an anemograph; the disinfection and sterilization system consists of a disinfection instrument and a bypass disinfection pipeline; the data recording and collecting system is composed of a computer. The experiment table can be used for testing and experimentally researching the performances such as the resistance, the microorganism filtering efficiency and the dust holding capacity of the air filter.

Description

technical field [0001] The invention belongs to the technical field of air filter performance testing, in particular to an air filter microbial filtration performance evaluation test bench for ventilation. Background technique [0002] Microorganisms are a huge threat to human health. Microbial aerosols come from a wide variety of sources and are composed of different microorganisms. The pollutants in microbial aerosols are mainly composed of active particles and inactive biological pollutants. One of the main routes of transmission of atypical pneumonia is through droplet transmission. Microorganisms such as viruses and bacteria in the atmosphere can easily enter the human body through the respiratory tract, seriously threatening human health. At present, the most widely used air filtration technology is still to remove microbial aerosols. Microbial aerosols are removed from the air by the trapping action of the filter on the particulate matter. At this stage, many stu...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N15/08
CPCG01N15/08G01N15/0806G01N15/0826G01N2015/084
Inventor 成泽林李艳菊王宇吴东云
Owner TIANJIN CHENGJIAN UNIV
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