Monodisperse aerosol generating system
An aerosol generation and aerosol generator technology, which is applied in the field of electromigration monodisperse aerosol generation systems, can solve the problems of complex structure and difficult to use, and achieves the effects of compact structure, easy disassembly and assembly, and easy use.
Pending Publication Date: 2022-04-12
QINGDAO ZHONGRUI INTELLIGENT INSTR
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Problems solved by technology
[0004] Most of the existing monodisperse aerosol generators can only produce monodisperse aerosols of one particle size, and the structure is relatively complicated and difficult to use
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[0040] The following will clearly and completely describe the technical solutions in the embodiments of the application with reference to the drawings in the embodiments of the application. Apparently, the described embodiments are only some of the embodiments of the application, not all of them. Based on the embodiments in this application, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the scope of protection of this application.
[0041] In the description of this application, it is to be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", The orientations or positional relationships indicated by "top", "bottom", "inner", "outer", etc. are based on the orientations or positional relationships shown in the drawings, and are only for the convenience of describing the application and simplifying the description, rather than indicating or implying Refe...
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The invention discloses a monodisperse aerosol generating system which comprises a polydisperse aerosol generator, a sheath flow circulating branch and an electromigration device, the outlet end of the sheath flow circulating branch is communicated with a sheath flow inlet in the electromigration device, the inlet end of the sheath flow circulating branch is communicated with a sheath flow outlet in the electromigration device, and the sheath flow circulating branch is used for providing circulating sheath flow for the electromigration device. The electromigration device comprises a first electrode plate and a second electrode plate which are arranged up and down, a high-voltage electric field is formed between the first electrode plate and the second electrode plate, the first electrode plate is provided with a polydisperse aerosol inlet communicated with the polydisperse aerosol generator, and the second electrode plate is provided with a plurality of monodisperse aerosol outlets arranged at intervals; a certain angle is formed between the sheath flow and the airflow direction of the polydisperse aerosol flowing into the electromigration device, and a certain distance is formed between the polydisperse aerosol inlet and each monodisperse aerosol outlet in the flowing direction parallel to the sheath flow. The system can generate standard monodisperse aerosols with various particle sizes and high stability and accuracy at one time.
Description
technical field [0001] The invention relates to the technical field of aerosol generators, in particular to an electromigration type monodisperse aerosol generating system. Background technique [0002] Aerosol is a colloidal dispersion system formed by dispersing solid or liquid small particles and suspending them in a gas medium, also known as a gas dispersion system. Its dispersed phase is solid or liquid small particles with a size of 0.001-100 microns, and its dispersion medium is gas. Aerosols have great applications in medicine, environmental science, and military science. At present, in the production and testing of filter materials such as masks, meltblown cloth, and high-efficiency filters, basic monodisperse particles are used as aerosol particles to detect the filtration efficiency of filter materials, and monodisperse aerosol particles are mostly produced by dispersed aerosol generators. [0003] Monodisperse aerosol generator is a high-precision single-distri...
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IPC IPC(8): B01J13/00
Inventor 赵顺刘凯齐延志张辰王坤巩永存
Owner QINGDAO ZHONGRUI INTELLIGENT INSTR