Micro water fog spray nozzle based on bubble atomization

A technology of micro-water mist nozzles and air bubbles, which is applied in the field of fire extinguishing, micro-water mist nozzles for decontamination, and spray cooling. It can solve the problems of increased manufacturing costs, insufficient spray intensity, and increased system costs to achieve improved safety and good fog. The effect of optimizing and reducing the application cost
CN103446691AInactive Publication Date: 2013-12-18UNIV OF SCI & TECH OF CHINA
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Patent Information

Authority / Receiving Office
CN Β· China
Current Assignee / Owner
UNIV OF SCI & TECH OF CHINA
Publication Date
2013-12-18
Estimated Expiration
Not applicable Β· inactive patent

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Abstract

The invention discloses a micro water fog spray nozzle based on bubble atomization. The micro water fog spray nozzle is characterized in that an air filling tube in the micro water fog spray nozzle is in threaded connection with a mixing cavity, so that the distance between each air filling hole and each spray hole can be adjusted; 2-3 rows of air filling holes are formed in the side surface of the air filling tube and 4-7 air filling holes are formed in the bottom of the air filling tube; each row of air filling holes in the side surface of the air filling tube are uniformly distributed on the circumference on which the cross section of the air filling tube is arranged and the air filling holes in the bottom of the air filling tube are also uniformly distributed along the circumference; the distances between the rows of air filling holes in the side surface of the air filling tube are the same and each air filling hole is downwardly tilted at an angle of 40-50 degrees; a spray hole is formed in the center of the bottom surface of the spray nozzle. Compared with a conventional fine water fog spray nozzle, the micro water fog spray nozzle has the advantages of small working pressure, less required atomizing air, larger spray-hole diameter, good atomizing effect, applicability to firefighting field, high extinguishing effectiveness and the like.
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Description

Technical field

[0001] The invention belongs to the technical field of micro-water mist nozzles for fire extinguishing, and particularly relates to a micro-water mist nozzle for fire extinguishing, spray cooling and decontamination based on bubble atomization. Background technique

[0002] According to the doctoral dissertation of the University of Science and Technology of China "Pneumatic water mist generation method based on steam-assisted atomization and simulation experiment of fire extinguishing effectiveness" (Xiao Xiukun, 2011), the existing water mist nozzles mainly include single-fluid nozzles and dual-fluid nozzles. Two kinds of fluid nozzles. Single-fluid water mist nozzles are mainly pressure type and impact type atomization nozzles, which are widely used at present. Impact type atomization nozzles generally operate at low and medium pressure, but are affected by the size and shape of the metal impact head. The particle size of the fine water mist is relatively larg...

Claims

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