CN2750828Y - Fire extinguishing apparatus - Google Patents
Fire extinguishing apparatus Download PDFInfo
- Publication number
- CN2750828Y CN2750828Y CN 200420104653 CN200420104653U CN2750828Y CN 2750828 Y CN2750828 Y CN 2750828Y CN 200420104653 CN200420104653 CN 200420104653 CN 200420104653 U CN200420104653 U CN 200420104653U CN 2750828 Y CN2750828 Y CN 2750828Y
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- breakable
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- extinguishing device
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Abstract
The utility model relates to a fire extinguishing apparatus, which comprises a sealed outer shell, dry powder fire-extinguishing agent, a gas generator and a bursting film. The utility model is characterized in that a jet flow divider is coaxially arranged on a nozzle at the lower part of the sealed outer shell; one end of the jet flow diverter is provided with a hollow cylinder with the inward heeling conical surface of a central eyelet; the ratio of the height of the hollow cylinder and the diameter of the big end of a cone is 0.1 to 0.3, or the jet flow divider is a hollow cylinder of which the bottom is in a semi-sphere wall; the height of a cylinder part is 0.5 to 0.8 times as high as the diameter of the nozzle; eyelets are evenly distributed on the semi-sphere wall. The utility model solves the technical problems of uneven dry powder jetting and unsteady working pressure when jetting.
Description
Technical field:
The utility model is about fire-fighting equipment, especially about using the device of dry-chemical fire extinguishing.
Background technology:
Fire-fighting powder is covered the surface of comburant, make itself and air completely cut off the method for putting out flare and have the free from corrosion advantage of protected object, particularly this method does not need water, very is suitable for lack of water or is not suitable for the fire extinguishing of water occasion.Dry powder extinguisher miscellaneous and extinguishing device have obtained to use widely.The Russia No. 2189265 utility model patent publicities a kind of extinguishing device, this extinguishing device has the can of dress fire-fighting powder in, the nozzle of sealing outer casing bottom is by the explosion membrane sealed, outside nozzle, be provided with the injection current divider, be provided with electric activator and gas-forming agent in can inside.When automaton awards the startup signal of telecommunication or ambient temperature arrival early warning temperature range; gas-forming agent produces a large amount of gases; under gas pressure, the explosion film of the nozzle sealing part indentation on along it is broken; fire-fighting powder in the housing and gases at high pressure blend together one and go out nozzle; spilling to the protection place through the jet current divider, is a kind of effective Fire extinguisher again.The unsettled shortcoming of operating pressure when but this extinguishing device exists dry powder to spray inhomogeneous and dry powder ejection.
Summary of the invention:
The utility model provides a kind of extinguishing device, solves powder extinguishing agent and sprays inhomogeneous and the unsettled technical problem of operating pressure when spraying.
The technical scheme that the utility model solves the problems of the technologies described above is:
A kind of extinguishing device, the shell, powder extinguishing agent, gas generator, the explosion film that comprise sealing, it is characterized in that: the nozzle of this outer casing underpart is provided with coaxial jet current divider, this jet current divider is the hollow cylinder that an end has the introversion conical surface of central aperture, and its height is 0.1～0.3 with the ratio of cone outside diameter; Perhaps this jet current divider is the hollow cylinder that the bottom is semispherical wall, and the height of its column part is 0.5～0.8 times of nozzle diameter, is evenly equipped with eyelet on this semispherical wall.
It is characterized in that: the central aperture diameter of this introversion conical surface and the diameter ratio of nozzle are 0.2～0.5.
It is characterized in that: the cone angle of this introversion conical surface is 45 °～130 °.
It is characterized in that: the height of this shell and diameter ratio are 1～10.
It is characterized in that: this breakable is the diaphragm of aluminium, copper or plumbous matter, and the ratio of this breakable and the thickness of shell wall is 1: 1～1: 10.
It is characterized in that: this breakable is the sphere to outer lug, and its action is 0.05～0.4 times of chord length.
Jet current divider of the present utility model has guaranteed the operating pressure that powder extinguishing agent is stable from structure; can be promptly with the form of dry powder cloud to around spill equably to the protection place; and powder extinguishing agent sprays clean noresidue, improved the reliability of using greatly.
Description of drawings:
Fig. 1 is a kind of structure cross-sectional schematic of the utility model.
Fig. 2 is another structure cross-sectional schematic of the utility model.
Fig. 3 is spherical breakable structural representation.
The specific embodiment:
See also shown in Figure 1ly, the utility model comprises shell 1, powder extinguishing agent 2, the gas generator 7 of sealing.Be filled with powder extinguishing agent 2 in the shell 1, and device there is the gas generator 7 that is joined by conductor wire and outside automatic control system at an upper portion thereof.It is D that this outer casing underpart has diameter
HNozzle 4, these nozzle 4 openends are by 3 shutoff of explosion film.This explosion film 3 is the diaphragm of soft metals such as aluminium, copper, lead, is carved with indentation on it and is beneficial to explosion under pressure, and the thickness of this explosion film 3 is 1: 1～1: 10 with the ratio of the wall thickness of shell.Be provided with the jet current divider 6 coaxial with nozzle 4, this jet current divider 6 is the hollow cylinder that an end has the introversion conical surface 5.The height h of this introversion conical surface is 0.1～0.3 with the ratio of its outside diameter Dp, at this moment, starts the back powder extinguishing agent and sprays both evenly, and area of effective coverage is maximum again, and above-mentioned ratio is as less than 0.1, not only sprays inhomogeneous but also fire-fighting area reduces; And this ratio also can reduce owing to the dry powder consumption reduction of unit are greater than 0.3 o'clock fire-fighting area.It is d that this introversion conical surface 5 has a diameter
0Central aperture, the diameter d of this central aperture
0Diameter D with nozzle 4
HRatio should be in 0.2～0.5 scope, otherwise will make the agent of dry powder fire produce uneven injection.The cone angle of same this introversion conical surface should be between 45 °～130 °, and effect will reduce because of the surge spray of powder extinguishing agent to protective zone otherwise it is put out a fire.For powder extinguishing agent 2 is sprayed in shell 1 fully, the height of shell 1 and diameter ratio should be between 1～10.
See also and Figure 2 shows that another structural shape of the present utility model, it and embodiment difference shown in Figure 1 are the hollow cylinder that this jet current divider 6 ' has semispherical wall 9 for the bottom, are evenly equipped with a certain amount of eyelet 8 on the semispherical wall 9.The height H of the column part of this jet current divider 6 is nozzle 4 diameter D
H0.5～0.8 times, work as H: D
H＜0.5 o'clock, the petal that forms after 3 explosions of explosion film will cover the eyelet 8 on the part semispherical wall 9, had a strong impact on the uniformity of injection, also influenced the spray regime of powder extinguishing agent 2 simultaneously; And H: D
H＞0.8 o'clock, powder extinguishing agent 2 can increase because of the loss of pressure spray not smooth, thereby cause serious inhomogeneities.
The utility model is for obtaining better jeting effect, and this explosion film 3 ' can be dome shape as shown in Figure 3, its action H
kFor chord length (is nozzle diameter D
H) 0.05～0.4 times.
For the utility model can be installed and fixed on the protection place; the first half or sidepiece at shell are provided with fixture; this fixture is existing various known versions: as retainer ring, fixed head, hook, fixed mount etc., in order to the utility model is arranged on body of wall, ceiling, the beam column.
Claims (10)
1, a kind of extinguishing device, the shell, powder extinguishing agent, gas generator, the explosion film that comprise sealing, it is characterized in that: the nozzle of this outer casing underpart is provided with coaxial jet current divider, this jet current divider is the hollow cylinder that an end has the introversion conical surface of central aperture, and its height is 0.1～0.3 with the ratio of cone outside diameter; Perhaps this jet current divider is the hollow cylinder that the bottom is semispherical wall, and the height of its column part is 0.5～0.8 times of nozzle diameter, is evenly equipped with eyelet on this semispherical wall.
2, extinguishing device according to claim 1 is characterized in that: the central aperture diameter of this introversion conical surface and the diameter ratio of nozzle are 0.2～0.5.
3, extinguishing device according to claim 2 is characterized in that: the cone angle of this introversion conical surface is 45 °～130 °.
4, according to claim 1,2,3 described extinguishing devices, it is characterized in that: the height of this shell and diameter ratio are 1～10.
5, according to claim 1,2,3 described extinguishing devices, it is characterized in that: this breakable is the diaphragm of aluminium, copper or plumbous matter, and the ratio of this breakable and the thickness of shell wall is 1: 1～1: 10.
6, extinguishing device according to claim 4 is characterized in that: this breakable is the diaphragm of aluminium, copper or plumbous matter, and the ratio of this breakable and the thickness of shell wall is 1: 1～1: 10.
7, according to claim 1,2,3 described extinguishing devices, it is characterized in that: this breakable is the sphere to outer lug, and its action is 0.05～0.4 times of chord length.
8, extinguishing device according to claim 4 is characterized in that: this breakable is the sphere to outer lug, and its action is 0.05～0.4 times of chord length.
9, extinguishing device according to claim 5 is characterized in that: this breakable is the sphere to outer lug, and its action is 0.05～0.4 times of chord length.
10, extinguishing device according to claim 6 is characterized in that: this breakable is the sphere to outer lug, and its action is 0.05～0.4 times of chord length.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420104653 CN2750828Y (en) | 2004-12-21 | 2004-12-21 | Fire extinguishing apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420104653 CN2750828Y (en) | 2004-12-21 | 2004-12-21 | Fire extinguishing apparatus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2750828Y true CN2750828Y (en) | 2006-01-11 |
Family
ID=35932012
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200420104653 Expired - Fee Related CN2750828Y (en) | 2004-12-21 | 2004-12-21 | Fire extinguishing apparatus |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2750828Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103341247A (en) * | 2012-06-25 | 2013-10-09 | 北京北机机电工业有限责任公司 | Suspending ultrafine dry powder self-service extinguishing device |
| 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 |
-
2004
- 2004-12-21 CN CN 200420104653 patent/CN2750828Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103341247A (en) * | 2012-06-25 | 2013-10-09 | 北京北机机电工业有限责任公司 | Suspending ultrafine dry powder self-service extinguishing device |
| CN103341247B (en) * | 2012-06-25 | 2016-04-06 | 北京北机机电工业有限责任公司 | The self-service extinguishing device of suspended type ultrafine dry powder |
| 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 |
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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: 20060111 Termination date: 20131221 |