Monodisperse aerosol generator

An aerosol generator and aerosol technology, applied in the direction of dissolution, microcapsule preparation, chemical instruments and methods, etc., can solve problems such as difficulties, poor monodispersity, complex structure, etc., and meet the requirements of simplified configuration and low pressure bearing requirements , easy-to-obtain effect
CN101352661BInactive Publication Date: 2010-08-18CHINA ACAD OF BUILDING RES
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
CHINA ACAD OF BUILDING RES
Publication Date
2010-08-18
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention provides a monodisperse aerosol generator which is developed by utilizing a 'cloud formation' theory, namely, steam is led to enwrap condensation nucleuses to form aerosol particles. The monodisperse aerosol generator comprises 1) a condensation nucleus source generating part, 2) a steam generating part, 3) an aerosol forming part and 4) a device controlling and adjusting part. By following a formation process of the aerosol, the condensation nucleus source generating part, the steam generating part and the aerosol forming part are serially connected in sequence; the device controlling and adjusting part is connected with the steam generating part and the aerosol forming part. The monodisperse aerosol generator of the invention has comparatively low spraying pressure which causes a clean carrier gas source to be obtained easily and has low requirement of the bearing pressure of a device, thus simplifying a device structure since clean carrier gas of air can be obtained only by using an ordinary vacuum pumps, can generate the aerosol with high concentration and produce the aerosol particles reaching the design objective concentration and meeting the test requirements of a high-efficiency air filter.
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Description

(1) Technical field:

[0001] The invention provides a monodisperse aerosol generator, which relates to an aerosol generator in a filter / filter material efficiency test bench, in particular to an aerosol generator in a high-efficiency air filter performance testing bench. (two) background technology:

[0002] The aerosol generator is an indispensable device in the filter / filter material performance testing test bench. To study a new filter performance test method, the first problem to be solved is to test the stable generation of aerosol, that is, there is an aerosol generator that can generate aerosol particles that meet the test requirements. At present, the performance test methods of high-efficiency air filters in my country are sodium flame method and oil mist method. The aerosol generating device has a complex structure, occupies a large area, and has a narrow scope of application. It is only suitable for the above two test methods. However, the mainstream method for te...

Claims

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