A dust and aerosol generator and testing device

Through the cooperation of venturi tube and microcontroller control components, the problem of micro feed and concentration control in dust and aerosol generators is solved, low-cost, stable and reliable dust or aerosol generation is achieved, and the feed in the existing technology is solved Problems of instability and high cost.

CN118904192BActive Publication Date: 2025-01-17HUNAN JIU JIU MINING SAFETY EQUIP
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Patent Information

Application Number
CN202411395795.0
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2024-10-08
Publication Date
2025-01-17
Estimated Expiration
2044-10-08

AI Technical Summary

Technical Problem

Existing dust and aerosol generators have difficulties in precise control of trace feeds and particle size and concentration, and are costly, especially the use of high-speed gas sources increases equipment complexity and cost.

Method used

Using venturi tube as blow pipe, combined with microcontroller control components and tilted feeding barrel, the feeding structure and coordinated control of the negative pressure zone can achieve accurate control of the micro feed and concentration, and the combination of compressed gas source and feed structure can be used to ensure dust. or stable generation of aerosols.

Benefits of technology

It realizes stable, reliable feeding and precise concentration control of dust or aerosol, reduces the manufacturing and use costs of equipment, avoids material accumulation and material pickup problems, and improves the working stability of the system.

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Abstract

The present invention relates to a dust and aerosol generator and a testing device, wherein the dust and aerosol generator comprises: a blow pipe (1), a gas flow valve (2) connected to the inlet end of the blow pipe (1), a diffusion box (3) connected to the outlet end of the blow pipe (1), a feed structure (4) connected to a feed port on the side wall of the blow pipe (1), and a single chip control component (5) connected to the feed structure (4) and the gas flow valve (2) respectively; the inlet of the gas flow valve (2) is connected to a compressed gas source; the blow pipe (1) adopts a venturi tube, wherein the feed port is arranged in the throat negative pressure area of ​​the venturi tube. The present invention can stably realize micro-feeding and precise concentration control, and also has the advantages of low manufacturing and use costs.
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Citation Information

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