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Mist generating apparatus and method

A kind of equipment and mist technology, applied in the field of mist generating equipment, can solve the problems such as difficult to realize the effective distribution of first fluid droplets, droplet size and distribution changes, etc.

Inactive Publication Date: 2014-07-23
PURSUIT DYNAMICS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This setup makes it very difficult to achieve efficient distribution of the first fluid droplets in the gas
These limitations lead to unpredictable variations in droplet size and distribution using the setup shown in WO'764

Method used

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  • Mist generating apparatus and method
  • Mist generating apparatus and method
  • Mist generating apparatus and method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0068] The mist generating device is generally indicated by reference numeral 10 and it is represented by Figure 1 to Figure 4 consists of four main components shown in .

[0069] like figure 1 The first component shown is a generally cylindrical body or housing 20 having first and second ends 22 , 24 . A neck 26 extends longitudinally from the first end 22 of the body 20 . Located at the second end 24 of the body is a compartment 28 which is open at the second end 24 of the body 20 and which is adapted to accommodate other components of the device 10 as will be described below. A first supply conduit, or conveying fluid supply conduit 30 extends longitudinally through the body 20 . The transport fluid supply conduit 30 has an inlet in the neck 26 and an outlet 34 to the compartment 28 . The transport fluid supply conduit 30 has a diverging profile, wherein the cross-sectional area of ​​the conduit 30 increases as the conduit 30 extends through the body 20 from the inlet ...

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PUM

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Abstract

The present invention provides an improved device for generating mist. The apparatus has at least one working fluid supply conduit (66) having an inlet in fluid communication with the working fluid supply and an outlet in fluid communication with the first mixing chamber. The apparatus also includes a plurality of delivery fluid channels (60a, 60b), each delivery fluid channel having an inlet adapted to receive a supply of delivery fluid and an outlet in fluid communication with the mixing chamber. Downstream of the mixing chamber is a nozzle (72) having an inlet (74) in fluid communication with the mixing chamber, an outlet (78) and a throat (76) intermediately connecting the nozzle inlet (74) and outlet (78). The throat (76) of the nozzle (72) has a cross-sectional area that is less than the cross-sectional area of ​​the nozzle inlet (74) or the nozzle outlet (78). Atomization of the working fluid is enhanced by providing a plurality of working fluid passages flowing into the mixing chamber and nozzles downstream of the mixing chamber to generate a mist.

Description

technical field [0001] SUMMARY OF THE INVENTION The present invention provides an improved mist-generating apparatus and method for producing a mist with very small liquid droplets, which have been found to be advantageous in a wide variety of fields. Examples of such areas include cooling, fire suppression and decontamination applications. Background technique [0002] WO 01 / 76764 discloses a mist generating device utilizing two fluids, primarily for fire suppression. In WO'764, a spray of first fluid droplets (i.e. first fluid droplets entrained in a gaseous medium) is passed through a plurality of first fluid nozzles into a mixing zone upstream of the first fluid nozzles. Simultaneously, a stream of air is injected into the mixing zone upstream of the first fluid nozzle. The gas carries the first fluid through an outlet nozzle that ejects a mixed stream of droplets of the first fluid and the second fluid from the device. The object of WO'764 is to reduce the frictional...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B05B7/04A62C31/07
CPCA62C5/008B01F5/0082A62C99/0072B05B7/0491B05B7/045B05B7/0433B01F5/0077B05B7/0416B01F25/12B01F25/105B01F23/2132
Inventor 裘德·亚历山大·格林·沃西詹姆斯·奥利弗·弗伦奇
Owner PURSUIT DYNAMICS