CN201899806U - Fine water mist spray head - Google Patents
Fine water mist spray head Download PDFInfo
- Publication number
- CN201899806U CN201899806U CN2010206683894U CN201020668389U CN201899806U CN 201899806 U CN201899806 U CN 201899806U CN 2010206683894 U CN2010206683894 U CN 2010206683894U CN 201020668389 U CN201020668389 U CN 201020668389U CN 201899806 U CN201899806 U CN 201899806U
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- spray head
- fire
- water mist
- ceiling
- fine water
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Abstract
The utility model relates to a fine water mist spray head capable of refraining the fire propagation at a ceiling. The fine water mist spray head integrally comprises a spray nozzle body and a spray head base that are in threaded connection with each other, high-pressure water is communicated with a water cavity through the spray head base to supply water for the spray nozzle body , the spray nozzle bodies that are mounted under and below are arranged on a spray head body; moreover the spray nozzle body that is mounted above is mounted on the upper edge of the spray head body, thereby achieving the purpose of refraining the fire propagation at the ceiling. The fine water mist spray head serves as the key part of a fine water mist fire extinction system, and the spraying direction of the fine water mist generated by the fine water mist spray head is close to a spheroid. The fine water mist spray head capable of refraining the fire propagation at the ceiling has a simple structure, and the spray nozzle and the spray core can be removed for maintenance; and when the fine water mist spray head capable of refraining the fire propagation at the ceiling is used for fire extinction, the fire propagation at the ceiling can be fully refrained, thereby extinguishing the fire at the ceiling effectively and achieving the effect of omnibearing indoor fire extinction.
Description
Technical field
The utility model relates to the nozzle structure in the Water Mist Fire Extinguishing Technique, particularly a kind of fine mist spray head that can suppress the ceiling fire spread.
Background technology
Water Mist Fire Extinguishing Technique is used for steamer fire extinguishing the forties in 20th century, and from the nineties, in order to seek to substitute Halon1301,1211 desirable extinguishing chemical, some developed countries have researched and developed fine water mist fire-extinguishing system in succession.In country " 95 " key scientific and technological projects are also listed the exploitation of fine water mist fire-extinguishing system by China.Fine water mist fire-extinguishing system comprehensively compares in each side such as fire extinguishing effect, construction costs, environmental protection, secondary disaster losses, is better than traditional gas extinguishing system and water spray, water sprinkling fire-distinguishing system, is adopted by the user more and more.
As emerging water fire-fighting fire extinguishing technology, fine water mist fire-extinguishing system has the two-fold advantage of extinction using gas and water fire extinguishing, the maximized again shortcoming that has reduced them simultaneously.Have series of advantages such as engineering and installation cost are low, fast to the fire reaction speed, water consumption is low, fire damage is few, fire spread is slow, alarm velocity is fast, add its environmental protection, widely used characteristics, fine water mist fire-extinguishing system will be the fire extinguishing system of new century the best.Enter the stage of popularizing the America and Europe at present, and with its good cost performance, remarkable environmental protection intension in order to replace gas extinguishing system and water sprinkling fire-distinguishing system.
Its operation principle is: utilize press water to flow through the fine mist that forms behind the special-purpose fine mist spray head and put out a fire or protect cooling; thin water smoke droplet average diameter is less than 200 μ m; specific area and density are higher; vaporize rapidly after meeting flame high temperature, volume is inflatable more than 1700 times, and the oxygen concentration of protection zone is greatly reduced; have very strong vaporization cooling effect and oxygen barrier smothering action; absorb a large amount of heats simultaneously, play the twin effect of starvation and cooling, reach the purpose of rapid fire extinguishing.
Fine water mist fire-extinguishing system be adapted to put out a fire to save life and property category-A, category-B, C class and electrical fire, can be used between Library, file store, plant room, electric equipment, between high and low voltage electric distribution, between power transformer, between aircraft and ship cabin, factory control room, computer and communication machine room, diesel generation machine room and oil storage, place such as oil-burning gas-fired boiler room, cable interlayer and cable tunnel.
Water smoke (or water droplet) flow direction that the shower nozzle of employed thin water smoke (comprising the water spray) system forms on the engineering all is a downward direction at present.This form does not reach the fire extinguishing purpose for the ceiling fire, and the generation of ceiling decoration material fire is in rising trend, therefore is badly in need of solving the actual engineering problem that the water system fire extinguishing system can not effectively suppress the ceiling fire spread.
Summary of the invention
The purpose of this utility model is to provide a kind of fine mist spray head that can suppress the ceiling fire simultaneously, reaches the purpose to the comprehensive fire extinguishing of inside fire.
The technical solution that realizes the utility model purpose is: a kind of fine mist spray head, form by being threaded with nozzle boss by nozzle body, nozzle boss is made up of upper-part and lower member, nozzle boss inside comprises current cavity and branch line thereof, and High-Pressure Water supplies water to nozzle body by nozzle boss water flow inside cavity and branch line thereof.
The utility model compared with prior art, its remarkable advantage: the utility model fine mist spray head not only can keep general shower nozzle technical indicator, simultaneously can form the protection zone at ceiling to put out the ceiling fire, or suppress spreading of ceiling fire.Its key technology is that nozzle body is installed on shower nozzle top, realizes upwards spraying thin water smoke.Press water flows through the thin water smoke droplet average diameter that forms behind the special-purpose fine mist spray head less than 200 μ m; specific area and density are higher; vaporize rapidly after meeting flame high temperature; volume is inflatable more than 1700 times; oxygen concentration in the protection zone is greatly reduced, have very strong vaporization cooling effect and oxygen barrier smothering action, absorb a large amount of heats simultaneously; play the twin effect of starvation and cooling, reach the purpose of rapid fire extinguishing.The spherical thin water smoke of the approximate circle that forms during injection can not only be realized the function of general shower nozzle, the function that can also realize putting out the ceiling fire or suppress the ceiling fire spread.
Description of drawings
Fig. 1 is the nozzle boss internal structure profile of the utility model fine mist spray head.
Fig. 2 is the nozzle body of the utility model fine mist spray head, and wherein, a is a front view, and b is a left view.
Fig. 3 is the integral installation figure of the utility model fine mist spray head.
The specific embodiment
Below in conjunction with accompanying drawing the present invention is described in further detail.
In conjunction with Fig. 1, a kind of fine mist spray head of the utility model, form by being threaded with nozzle boss by nozzle body, nozzle boss is made up of upper-part 1 and lower member 3, nozzle boss inside comprises current cavity 2 and branch line thereof, and High-Pressure Water supplies water to nozzle body by nozzle boss water flow inside cavity 2 and branch line thereof.
In conjunction with Fig. 2, a kind of fine mist spray head of the utility model, the side 5 of described nozzle boss upper-part 1 is the inclined-plane, has the internal thread hole that is used to install nozzle body; High-Pressure Water supplies water to the nozzle body that is installed on side 5 by nozzle boss water flow inside cavity 2 and the branch line that makes progress thereof.
In conjunction with Fig. 2, a kind of fine mist spray head of the utility model, the bottom surface 7 of described nozzle boss lower member 3 is the plane, the side 6 of lower member 3 is the inclined-plane, all has the internal thread hole that nozzle body is installed; High-Pressure Water supplies water to the nozzle body that is installed on bottom surface 7 and side 6 by nozzle boss water flow inside cavity 2 and downward branch line thereof.
Below in conjunction with specific embodiment the present invention is described in further detail.
The utility model is installed the nozzle body that upwards sprays at the upper surface of traditional fine mist spray head, and wherein the nozzle body that sprays downwards is totally 7, and one of them is positioned at 7, six of bottom surfaces and is positioned at side 6.Upwards the nozzle body that sprays is totally 4, all is positioned at side 5.The whole gas thread 4 that passes through is connected with fire line, is that nozzle body supplies water by internal cavity 2 and branch line thereof, forms thin water smoke active region at ceiling when exerting pressure water spray.
The single-phase flow fine mist spray head; Working pressure range MPa:2.8-6.0; Flow coefficient k: 0.6; Fogdrop diameter μ m:＜200; Interface thread: M18x1.5; Application place: category-B fire, part A class fire, electric, cable and control machine room electric appliances fire, the complicated ceiling of decorating etc.
Embodiment: experiment is carried out in a simulation room, and fine mist spray head and general shower nozzle that employing can suppress the ceiling fire spread compare, and checking can suppress the fine mist spray head extinguishing property of ceiling fire spread.A small-power smoke extractor is equipped with at the top, room, after the igniting, does not influence observation to test thereby open smoke extractor so that in time get rid of smog.Because the less and each experimental simulation environment facies of smoke extractor power together, therefore do not influence the contrast of two kinds of experiments.Laboratory apparatus comprises: the comburant of timer, temperature sensor, gas composition analyzer, 10 parts of equivalent, high-pressure water, data collecting system etc.Identical sparking mode is adopted in experiment, simulates identical primary condition, and every kind of experiment done 5 times, and centre and top that shower nozzle is fixed in the simulation room keep the 30cm distance, and shower nozzle picks up counting when working and measures relevant parameter.The average result of two groups of experiments shows that when employing can suppress the fine mist spray head of ceiling fire spread, the general relatively shower nozzle of attack time had reduced 11.3%, and gas concentration lwevel has reduced by 7.6% relatively, and the burning area of ceiling has reduced about 86% relatively.
Claims (3)
1. fine mist spray head, form by being threaded with nozzle boss by nozzle body, it is characterized in that: nozzle boss is made up of upper-part (1) and lower member (3), nozzle boss inside comprises current cavity (2) and branch line thereof, and High-Pressure Water supplies water to nozzle body by nozzle boss water flow inside cavity (2) and branch line thereof.
2. fine mist spray head according to claim 1 is characterized in that: the side (5) of described nozzle boss upper-part (1) is the inclined-plane, has the internal thread hole that is used to install nozzle body; High-Pressure Water supplies water to the nozzle body that is installed on side (5) by nozzle boss water flow inside cavity (2) and the branch line that makes progress thereof.
3. fine mist spray head according to claim 1 is characterized in that: the bottom surface (7) of described nozzle boss lower member (3) is the plane, and the side (6) of lower member (3) is the inclined-plane, all has the internal thread hole that nozzle body is installed; High-Pressure Water supplies water to the nozzle body that is installed on bottom surface (7) and side (6) by nozzle boss water flow inside cavity (2) and downward branch line thereof.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206683894U CN201899806U (en) | 2010-12-20 | 2010-12-20 | Fine water mist spray head |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206683894U CN201899806U (en) | 2010-12-20 | 2010-12-20 | Fine water mist spray head |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201899806U true CN201899806U (en) | 2011-07-20 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010206683894U Expired - Fee Related CN201899806U (en) | 2010-12-20 | 2010-12-20 | Fine water mist spray head |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201899806U (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102371390A (en) * | 2010-08-23 | 2012-03-14 | 西安航空动力股份有限公司 | Spray head base for accumulated chip clearing device of broach |
| CN105562230A (en) * | 2015-12-09 | 2016-05-11 | 安徽工业大学 | Heat exchange spray nozzle |
| CN105749463A (en) * | 2016-05-03 | 2016-07-13 | 曹景怡 | Novel vehicle-mounted fire extinguishing system and fire prevention method |
| CN106362334A (en) * | 2016-10-20 | 2017-02-01 | 南京壹诺为航空科技有限公司 | High-pressure piston water spray fire extinguisher |
| CN107631662A (en) * | 2017-10-31 | 2018-01-26 | 华中科技大学 | A kind of composite spray jet head of water curtain and water smoke |
| CN114225282A (en) * | 2021-11-24 | 2022-03-25 | 北京北机机电工业有限责任公司 | Multi-nozzle fire extinguishing device |
-
2010
- 2010-12-20 CN CN2010206683894U patent/CN201899806U/en not_active Expired - Fee Related
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102371390A (en) * | 2010-08-23 | 2012-03-14 | 西安航空动力股份有限公司 | Spray head base for accumulated chip clearing device of broach |
| CN102371390B (en) * | 2010-08-23 | 2012-12-26 | 西安航空动力股份有限公司 | Spray head base for accumulated chip clearing device of broach |
| CN105562230A (en) * | 2015-12-09 | 2016-05-11 | 安徽工业大学 | Heat exchange spray nozzle |
| CN105562230B (en) * | 2015-12-09 | 2018-04-06 | 安徽工业大学 | A kind of heat exchange nozzle |
| CN105749463A (en) * | 2016-05-03 | 2016-07-13 | 曹景怡 | Novel vehicle-mounted fire extinguishing system and fire prevention method |
| CN106362334A (en) * | 2016-10-20 | 2017-02-01 | 南京壹诺为航空科技有限公司 | High-pressure piston water spray fire extinguisher |
| CN107631662A (en) * | 2017-10-31 | 2018-01-26 | 华中科技大学 | A kind of composite spray jet head of water curtain and water smoke |
| CN107631662B (en) * | 2017-10-31 | 2023-09-29 | 华中科技大学 | Composite spray head for water curtain and water mist |
| CN114225282A (en) * | 2021-11-24 | 2022-03-25 | 北京北机机电工业有限责任公司 | Multi-nozzle fire extinguishing device |
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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: 20110720 Termination date: 20131220 |