CN201921369U - Bubble atomization water mist sprayer - Google Patents
Bubble atomization water mist sprayer Download PDFInfo
- Publication number
- CN201921369U CN201921369U CN2010206171203U CN201020617120U CN201921369U CN 201921369 U CN201921369 U CN 201921369U CN 2010206171203 U CN2010206171203 U CN 2010206171203U CN 201020617120 U CN201020617120 U CN 201020617120U CN 201921369 U CN201921369 U CN 201921369U
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- shower nozzle
- gas
- inner tube
- porous inner
- water supply
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- Expired - Fee Related
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Abstract
The utility model relates to a novel bubble atomization water mist sprayer, which is characterized in that gas and liquid respectively enter into the sprayer through two inlets of the sprayer; the gas is injected into the liquid in manner of bubbles, and a uniform two-phase flow containing the bubbles is formed in a mixing chamber of the sprayer.
Description
Technical field
The utility model relates to a kind of fire extinguishing sprayer, relates in particular to a kind of effervescent atomization fine mist spray head.
Background technology
At present fine mist spray head mainly contains two types in single fluid shower nozzle and two-fluid shower nozzle.The atomizing principles of single fluid fine mist spray head is pressure atomization and swirling flow atomizing, and the droplet sizes of this class fine mist spray head and distribution increase droplet sizes with pressure and diminish mainly by the sprinkler pressure decision, and droplet momentum and flux density increase thereupon.The fire extinguishing effect that therefore, seek out just needs very high operating pressure.And the outlet diameter of this class shower nozzle is very little, stops up easily, and is higher to water quality requirement.The single fluid fine mist spray head is mainly used in fixed and vehicular fine water mist fire-extinguishing system at present, need with high-pressure pump and the supporting use of high pressure line.The atomization method that the two-fluid fine mist spray head is used is a twin, promptly utilize the kinetic energy of high velocity air that water decomposition is atomized, the operating pressure of this class shower nozzle is lower, nozzle diameter is bigger, but hydraulic pressure and atomization pressure need control respectively, and gas liquid ratio is big, needs a large amount of gases at high pressure during work.The two-fluid fine mist spray head is mainly used in Backpack fire extinguisher with atomization device at present, need with the supporting use of gas cylinder.
Summary of the invention
The utility model in conjunction with the swirling flow atomizing technology, has designed the novel effervescent atomization fine mist spray head that a kind of operating pressure is low, nozzle diameter is big, gas liquid ratio is little according to advanced person's effervescent atomization method.
The technical scheme that the utility model adopted is: gas and liquid enter shower nozzle inside respectively by two imports of shower nozzle, and gas is injected in the liquid with the form of bubble, form the two phase flow that contains bubble uniformly in the shower nozzle mixing chamber.Before the shower nozzle outlet, bubbly two-phase flow is flowed through and is had the runner of certain angle, forms eddy current.In the shower nozzle exit, because bubble makes liquid with the brin that comprises a large amount of micro-bubbles or the form rotation ejection of liquidus to the effect of extruding, shearing and the eddy flow of liquid.In leaving the extremely short distance of spout, because the acute variation of bubble inside and outside differential pressure impels bubble sharply to expand until breaking, the liquid film that will be wrapped in simultaneously around it is further broken, forms trickleer particle swarm.
The beneficial effects of the utility model are: compare with traditional double fluid fine mist spray head, gas liquid ratio of the present utility model is less, when reaching identical atomizing effect and putting out a fire effect, required atomization gas total amount is much smaller than traditional double fluid fine mist spray head, even the spraying fire extinguishing does not need too much gases at high pressure storage bottle yet for a long time, therefore can be applicable to fixed fine water mist fire-extinguishing system.Compare with the single fluid fine mist spray head, the utility model operating pressure at sprinkler can need not use high pressure resistant pipeline and high-pressure pump than low more than 10 times of common single fluid atomizer, helps reducing system cost; Nozzle diameter can be good at avoiding the generation of stopping up greatly, and the security that improves system reduces the difficulty of processing of shower nozzle.This shower nozzle utilizes effervescent atomization and swirling flow atomizing principle to make water fogging becomes thin water smoke, can obtain to have the thin water smoke of I level of good fire extinguishing effect under the low pressure condition.The shower nozzle that can be used as fixed fine water mist fire-extinguishing system, portable fine mist fire-fighting equipment and fine water fog spraying gun uses.
Description of drawings
Fig. 1 is the structure chart of the utility model effervescent atomization fine mist spray head.
Among the figure 1, water supply connector; 2, restrictor ring; 3, shower nozzle outer tube; 4, inlet suction port; 5, porous inner tube; 6, eddy flow core; 7, fog-spray nozzle.
The specific embodiment
Below in conjunction with drawings and Examples the utility model is further specified.
Claims (2)
1. effervescent atomization fine mist spray head, it is characterized in that: gas and liquid enter shower nozzle inside respectively by two imports of shower nozzle, and gas is injected in the liquid with the form of bubble, form the two phase flow that contains bubble uniformly in the shower nozzle mixing chamber.
2. effervescent atomization fine mist spray head according to claim 1, it is characterized in that water supply connector (1) one end is used to connect water supply line, the other end is used to connect shower nozzle outer tube and porous inner tube, when can making shower nozzle work, restrictor ring (2) can keep suitable pressure in the porous inner tube, be beneficial to the formation of bubbly two-phase flow, shower nozzle outer tube (3) one ends and water supply connector link, the other end and fog-spray nozzle link, side-wall hole and inlet suction port link, during work, annular chamber between shower nozzle outer tube and porous inner tube can be full of atomization gas, by the injecting gas in liquid of the injecting hole on the porous inner tube, inlet suction port (4) is used to connect gas pipeline, provide atomization gas to shower nozzle, porous inner tube (5) one ends and water supply connector link, the other end is connected in the fog-spray nozzle, play the effect of mixing chamber, eddy flow core (6) is for having the cylinder of eddy flow groove, spout is offered at fog-spray nozzle (7) top, atomizing angle as required can be offered a plurality of spouts, evenly distribute around the center, also can increase spout at the center, nozzle diameter is 1.0mm～2.5mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206171203U CN201921369U (en) | 2010-11-22 | 2010-11-22 | Bubble atomization water mist sprayer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206171203U CN201921369U (en) | 2010-11-22 | 2010-11-22 | Bubble atomization water mist sprayer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201921369U true CN201921369U (en) | 2011-08-10 |
Family
ID=44425244
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010206171203U Expired - Fee Related CN201921369U (en) | 2010-11-22 | 2010-11-22 | Bubble atomization water mist sprayer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201921369U (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103100173A (en) * | 2013-02-26 | 2013-05-15 | 王靖 | Fixed pipe network extinguishing system |
| CN103405874A (en) * | 2013-08-30 | 2013-11-27 | 广东胜捷工业安全技术有限公司 | Double-phase-flow fire-extinguishing nozzle |
| CN104492011A (en) * | 2014-12-31 | 2015-04-08 | 西华大学 | Multi-nozzle water mist spray head |
| CN104740809A (en) * | 2015-03-30 | 2015-07-01 | 广州中国科学院工业技术研究院 | Fire extinguishing device and fire extinguishing method |
| CN106694265A (en) * | 2017-01-16 | 2017-05-24 | 西北农林科技大学 | Bubble type electrostatic nozzle |
| CN109365375A (en) * | 2018-12-19 | 2019-02-22 | 广东闻扬环境科技有限公司 | Differential pressure transmitter diaphragm cleaning device |
| CN110449283A (en) * | 2019-09-12 | 2019-11-15 | 河北工业大学 | A kind of novel atomized nozzle based on bubble cutting |
| CN112402875A (en) * | 2020-12-08 | 2021-02-26 | 上海工程技术大学 | Low-pressure atomization fire-fighting nozzle |
-
2010
- 2010-11-22 CN CN2010206171203U patent/CN201921369U/en not_active Expired - Fee Related
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103100173A (en) * | 2013-02-26 | 2013-05-15 | 王靖 | Fixed pipe network extinguishing system |
| CN103405874A (en) * | 2013-08-30 | 2013-11-27 | 广东胜捷工业安全技术有限公司 | Double-phase-flow fire-extinguishing nozzle |
| CN104492011A (en) * | 2014-12-31 | 2015-04-08 | 西华大学 | Multi-nozzle water mist spray head |
| CN104740809A (en) * | 2015-03-30 | 2015-07-01 | 广州中国科学院工业技术研究院 | Fire extinguishing device and fire extinguishing method |
| CN104740809B (en) * | 2015-03-30 | 2018-03-20 | 广州中国科学院工业技术研究院 | Extinguishing device and method |
| CN106694265A (en) * | 2017-01-16 | 2017-05-24 | 西北农林科技大学 | Bubble type electrostatic nozzle |
| CN109365375A (en) * | 2018-12-19 | 2019-02-22 | 广东闻扬环境科技有限公司 | Differential pressure transmitter diaphragm cleaning device |
| CN110449283A (en) * | 2019-09-12 | 2019-11-15 | 河北工业大学 | A kind of novel atomized nozzle based on bubble cutting |
| CN112402875A (en) * | 2020-12-08 | 2021-02-26 | 上海工程技术大学 | Low-pressure atomization fire-fighting nozzle |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110810 Termination date: 20131122 |