High flow rate aerosol sampling apparatus

A sampling device and aerosol technology, which are applied in the field of combined virtual impact high-flow aerosol sampling devices, can solve the problems of large volume and weight, particle rebound, poor airflow streamline shaping ability, etc., and reduce the structure volume and weight. , easy to install and clean, reduce the effect of wall loss
CN101324490AActive Publication Date: 2008-12-17北京汇丰隆生物科技发展有限公司 +1
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
北京汇丰隆生物科技发展有限公司
Publication Date
2008-12-17

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Abstract

The invention relates to a large-flow aerosol sampling device, which is characterized in that the aerosol sampling device mainly comprises a macroparticle cutter, a concentrating separator and a sampler. The macroparticle cutter comprises an inner tube, an outer tube, a top cap, an insect preventing net cover and an air flow output pipe, wherein a circle of air flow inlets are arranged between the outer tube and the top cap; an air flow spray nozzle is formed between the inner tube and the outer tube; the air flow output pipe is arranged in the insect preventing net cover and fixed on the tapered bottom surface of the outer tube. The aerosol concentrating separator comprises an outer shell, and an upper spray nozzle and a lower spray nozzle which are respectively arranged, wherein a ventilation clearance is reserved between the upper spray nozzle and the lower spray nozzle, so as to form a preliminary spray nozzle separated by small particles; ventilation clearances are reserved among the lower spray nozzle and the air flow inlets, so as to form a secondary spray nozzle. The aerosol sampling device has the advantages of simple structure and small volume, and can be used for the concentration, the separation and the real-time monitoring of biological aerosol in the atmosphere.
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Description

technical field

[0001] The invention relates to a large-flow aerosol sampling device, in particular to a combined virtual impact high-flow aerosol sampling device that can be used for the concentration and separation of biological aerosols in the atmosphere. Background technique

[0002] With the accelerating process of economic globalization, new infectious diseases appear frequently around the world, public health emergencies occur from time to time, and the threat of bioterrorism becomes more prominent. Biosafety has become a serious threat to human life, national security and economic development. important question. Infectious viruses, bioterrorism weapons and other microorganisms exist in the atmosphere in the form of aerosol particles, so it is imperative to monitor the potential danger of particles in the atmosphere in real time. Experiments have shown that the diameter of microbial particles that can be transmitted in the air is generally more than 2 microns, and t...

Claims

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