Ultra-micro small-particle size aerosol generating equipment capable of accurately controlling concentration

Abstract

The invention provides ultra-micro small-particle size aerosol generating equipment capable of accurately controlling concentration. The ultra-micro small-particle size aerosol generating equipment is characterized in that liquid of which the flow is controlled by a precise injection pump is delivered into an atomization array body in a glass cavity and is atomized through a gas injection branch pipe by using compressed gas to form aerosol; the aerosol with a larger particle size falls on a porous aeration plate under the action of gravity to form reduced liquid; part of the reduced liquid is sucked into the gas injection branch pipe through a siphon liquid pipe to be atomized again; the other part of the reduced liquid is aerated by the porous aeration plate to form ultra-micro small-particle size atomized aerosol; the bottom part of the atomization array body and the bottom part of the glass cavity are respectively and electrically heated under the condition of temperature control, and thus, the liquid can be more favorably sublimated and atomized; and finally, the formed ultra-micro small-particle size aerosol and a proportion of air introduced by an air inlet quick joint form the ultra-micro small-particle size aerosol of which the concentration is accurately controlled, and the ultra-micro small-particle size aerosol is delivered out from an aerosol delivery pipe. The ultra-micro small-particle size aerosol generating equipment has the beneficial effects that the concentration of the ultra-micro small-particle size aerosol can be accurately controlled and the special requirements of the fields of environmental sciences, military medicine, inhalation toxicology, nanotechnology, material science and the like can be met by the ultra-micro small-particle size aerosol.

Description

technical field [0001] The invention relates to a device for generating an aerosol with an ultrafine particle size that can precisely control the concentration. Background technique [0002] At present, in the fields of environmental science, military medicine, inhalation toxicology, nanotechnology, material science and other fields, there is an urgent need to use a gas environment that can produce ultra-fine particle size aerosols with precisely controlled concentrations for testing, simulation, evaluation, inspection, etc. For scientific experimental research, this gas environment is generally composed of a fixed-volume closed chamber and an ultra-fine particle size aerosol generating device that can produce precisely controlled concentrations, and a fixed-volume closed chamber is easy to achieve , but the ultra-fine particle size aerosol generating equipment that can produce precisely controlled concentrations is still blank. Most of the general aerosol generating equipme...

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Problems solved by technology

[0002] At present, in the fields of environmental science, military medicine, inhalation toxicology, nanotechnology, material science and other fields, there is an urgent need to use a gas environment that can produce ultra-fine particle size aerosols with precisely controlled concentrations for testing, simulation, evaluation, inspection, etc. For scientific experimental research, this gas environment is generally composed of a fixed-volume closed chamber and an ultra-fine particle size aerosol generating device that can produce precisely controlled concentrations, and a fixed-volume closed chamber is easy to achieve , but the ultra-fine particle size aerosol generating equipment that can produce precisely controlled concentrations is still blank. Most of the general aerosol generating equipment adopts the direct spray method, and the concentration of the liquid is uncontrollable, and the particle sizes produced are also different in size. The atomized liquid has strict requirements, such as no viscosity or turbidity, otherwise it cannot be atomized, etc., which cannot meet the requirements of current scientific research, thus restricting the development of related scientific research

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