CN102671330A - Fire retarding method and fire retarding device for aerosol fire extinguisher - Google Patents
Fire retarding method and fire retarding device for aerosol fire extinguisher Download PDFInfo
- Publication number
- CN102671330A CN102671330A CN2012101889004A CN201210188900A CN102671330A CN 102671330 A CN102671330 A CN 102671330A CN 2012101889004 A CN2012101889004 A CN 2012101889004A CN 201210188900 A CN201210188900 A CN 201210188900A CN 102671330 A CN102671330 A CN 102671330A
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- fire
- fire retardant
- aerosol
- retardant device
- baffle plate
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- A—HUMAN NECESSITIES
- A62—LIFE-SAVING; FIRE-FIGHTING
- A62C—FIRE-FIGHTING
- A62C5/00—Making of fire-extinguishing materials immediately before use
- A62C5/006—Extinguishants produced by combustion
-
- A—HUMAN NECESSITIES
- A62—LIFE-SAVING; FIRE-FIGHTING
- A62C—FIRE-FIGHTING
- A62C13/00—Portable extinguishers which are permanently pressurised or pressurised immediately before use
- A62C13/006—Portable extinguishers which are permanently pressurised or pressurised immediately before use for the propulsion of extinguishing powder
-
- A—HUMAN NECESSITIES
- A62—LIFE-SAVING; FIRE-FIGHTING
- A62C—FIRE-FIGHTING
- A62C13/00—Portable extinguishers which are permanently pressurised or pressurised immediately before use
- A62C13/02—Portable extinguishers which are permanently pressurised or pressurised immediately before use with pressure gas produced by chemicals
- A62C13/22—Portable extinguishers which are permanently pressurised or pressurised immediately before use with pressure gas produced by chemicals with incendiary substances producing pressure gas
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- Health & Medical Sciences (AREA)
- Public Health (AREA)
- Business, Economics & Management (AREA)
- Emergency Management (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Fire-Extinguishing By Fire Departments, And Fire-Extinguishing Equipment And Control Thereof (AREA)
- Fire-Extinguishing Compositions (AREA)
Abstract
The invention belongs to the technical field of fire protection and particularly relates to a fire retarding method and a fire retarding device for an aerosol fire extinguisher. Due to the adoption of a fire retarding baffle, a fluid guide wall and a smoke through hole which is processed on a horn mouth, flames can be retarded, hot aerosol smoke can flow smoothly and is not sprayed explosively due to excessive pressure, and the smoke concentration and the strength of air pressure at a nozzle cannot be reduced, so that the fire extinguishing efficiency of a hot aerosol fire extinguishing device can be guaranteed. By the fire retarding method and the fire retarding device, flames can form vortex on a part close to the nozzle, and the kinetic energy of spraying is reduced to ensure that the flames are sealed in an internal cylinder of the aerosol fire extinguisher. The principle of the aerosol fire extinguisher is simple, and the original structure is not changed greatly. The fire retarding device is simple, and only a simple heat resistant shell is needed, so that the fire retarding device is low in cost, convenient to assemble and can be industrially produced conveniently.
Description
Technical field
The invention belongs to the fire prevention field, particularly a kind of back-fire relief method and device of aerosol fire-extinguishing device.
Background technology
The hot aerosol fire extinguisher is as important and the Kazakhstan dragon substitute technology of wide market prospects arranged.Obtain great attention in the fire-fighting fire extinguishing field, and obtained apace development, be widely used in the fire-fighting of mobile communication, electric power, metallurgy, petrochemical industry, military affairs, transportation, every field such as civilian.The hot aerosol fire extinguisher is to emit the extinguishing material fire extinguishing through the burning of pyrotechnics class medicament; Therefore; In combustion reaction, can produce flame and outwards injection; For stoping from the temperature of ejection of device spout and reduction aerosol fire-extinguishing device, the type of cooling that adopts at present is that physics cooling or chemistry cool off, or both use simultaneously.But, naked light does not appear for reaching at the device spout, then need add a large amount of chemical coolants, and this can increase apparatus structure volume and quality greatly, and can reduce fire extinguishing effectiveness, and can not stop the generation of spout flame fully; And the flame of aerosol fire-extinguishing device spout can cause the Personal Risk to the user of service on the one hand, particularly portable aerosol fire-extinguishing device fire extinguisher, and spout flame is bigger to the influence of product safety in utilization.On the other hand, aerosol fire-extinguishing device spout flame does not meet some special industry related specifications yet.In some inflammable gases or the many places of inflammable volatile matter, spot fire takes place in the spout flame inflammable thing of can igniting easily, this to a great extent limit the scope of application of aerosol fire-extinguishing device.Moreover spout flame makes the aerosol fire-extinguishing device can't satisfy the related specifications requirement of some strict international fire product safety.
Summary of the invention
In order to solve the problem that naked light appears in aerosol fire-extinguishing device spout of the prior art, the invention provides a kind of back-fire relief method and device that can effectively stop the spout naked light and can guarantee the aerosol fire-extinguishing device of fire-fighting efficiency.
The technical scheme that the present invention adopts is:
A kind of back-fire relief method of aerosol fire-extinguishing device may further comprise the steps:
1) on the aerocolloidal injection direction of fire extinguishing, fire retardant device is set, the flame fraction that the firework medicament burning produces is stopped, remain most of flame and disperseed to its edge by drainage through fire retardant device;
2) flame and the aerosol cloud that are dispersed to the fire retardant device edge spread to top cover along the extinguishing device barrel, and are stopped the formation eddy current by top cover, and flame kinetic energy is significantly decayed;
3) aerosol cloud that forms eddy current makes the cavity internal gas pressure continue to raise from the hole entering fire retardant device of fire retardant device and the cavity between the top cover, when surpassing the spout bearing capacity of top cover, sprays from spout.
Further, the bottom of fire retardant device described in the step (1) is provided with the back-fire relief baffle plate, and the middle part is provided with the drainage wall, and said drainage wall is obliquely installed the outer at the back-fire relief baffle plate.
Further, said fire retardant device also comprises horn mouth, and the hole at the middle part of fire retardant device described in the step (3) is arranged on the horn mouth, and the end that said horn mouth diameter is bigger connects with the drainage wall.
The invention still further relates to a kind of fire retardant device of aerosol fire-extinguishing device, said fire retardant device comprises back-fire relief baffle plate and drainage wall; Said drainage wall is obliquely installed the outer at the back-fire relief baffle plate.
Further, said fire retardant device also comprises horn mouth, and the end that bell-mouthed diameter is bigger connects with the drainage wall; On horn mouth, process smoke through hole.
Further, be sealed attachment between said back-fire relief baffle plate and the drainage wall.
Further, said back-fire relief baffle plate is tabular or the arc surface shape.
Further, said back-fire relief baffle plate, drainage wall and the horn mouth formula structure that is processed as one.
Further, the diameter of said back-fire relief baffle plate is less than the maximum gauge of drainage wall, and the maximum gauge of drainage wall is less than the diameter of extinguishing device cartridge case.
Beneficial effect of the present invention is:
1) the back-fire relief method and the device of aerosol fire-extinguishing device of the present invention; Through setting up back-fire relief baffle plate and drainage wall and on horn mouth, processing smoke through hole; When stopping flame, can guarantee that the circulation of hot aerosol flue gas is smooth and easy, not because of the excessive and quick-fried spray of pressure; Simultaneously can ensure that also the flue gas concentration of spout and air pressure intensity do not reduce, thereby guarantee the fire-fighting efficiency of hot aerosol fire extinguishing dress.
2) the invention enables flame closing on spout place formation eddy current, subdue injection kinetic energy, thereby ensure that flame is closed in the inner core of aerosol fire-extinguishing device, its principle is simple, can not bring very cataclysm to original structure.
3) fire retardant device technology of the present invention is simple, only need a simple heat-resistant housing, so cost is lower, and it is convenient to assemble, and is beneficial to suitability for industrialized production.
Description of drawings:
Fig. 1 is the structure general assembly sketch map of embodiment 1.
Fig. 2 is a fire retardant device structural representation of the present invention.
Among the figure: 1, powder column 2, igniter pad 3, cooling layer 4, fire retardant device 41, back-fire relief baffle plate 42, drainage wall 43, horn mouth 44, smoke through hole 5, thermal insulation layer 6, top cover
The specific embodiment:
Below in conjunction with Figure of description the present invention is done further description.
Back-fire relief method of the present invention is realized by following step:
1) on the aerocolloidal injection direction of fire extinguishing, fire retardant device 4 is set; The heat of its burned flame is significantly reduced; Subsequently; Arrive the back-fire relief baffle plate 41 of fire retardant device 4, stop through the flame part of back-fire relief baffle plate 41 with firework medicament, remainder flame and aerosol cloud are disperseed to its edge by drainage wall 42 drainages of fire retardant device 4;
2) flame and the aerosol cloud that are dispersed in fire retardant device 4 edges to 6 diffusions of extinguishing device top cover, and are stopped the formation eddy current by top cover 6 along the extinguishing device barrel, make flame kinetic energy produce decay;
3) form the cavity that the aerosol cloud of eddy current gets between fire retardant devices 4 and the top cover from the smoke through hole 44 on the horn mouth 43; When the air pressure in the cavity surpasses the ability to bear of sealing-plug at spout place of top cover; Will sealing-plug be gone out, gush out, put out a fire from the spout of top cover 6.
Referring to Fig. 1 and Fig. 2, the fire retardant device 4 of present embodiment is made up of back-fire relief baffle plate 41, drainage wall 42 and horn mouth 43 connections.
Specifically: back-fire relief baffle plate 41 adopts high temperature resistant, corrosion resistant steel plate to process, and its diameter is less than the cartridge case internal diameter of extinguishing device, connects with drainage wall 42 at the outer edge of back-fire relief baffle plate 41; Drainage wall 42 outward-dipping settings, and shape has a certain degree between the back-fire relief baffle plate 41, the overall diameter of drainage wall 42 is greater than the diameter of back-fire relief baffle plate 41 internal diameter less than cartridge case; Be the internal diameter of the maximum gauge of drainage wall 42 less than cartridge case; Making has certain clearance between drainage wall 42 and the cartridge wall, and flame and smog can get into the cavity between horn mouth 43 and the extinguishing device top cover along with the gap, is stopped that by top cover the back forms eddy current; Horn mouth 43 tips upside down on the top of drainage wall 42; And form a cavity between the drainage wall 42, be provided with breach, form the smoke through hole 44 of present embodiment in the edge of horn mouth 43.
For the ease of installing, the back-fire relief baffle plate 41 of present embodiment, drainage wall 42 and horn mouth 43 are integral structure.
During use, the fire retardant device 4 of present embodiment is arranged in the cartridge case of extinguishing device, closes on the position of spout; Promptly in the cartridge case of extinguishing device, set gradually firework medicament powder column 1, igniter pad 2, cooling layer 3 and fire retardant device 4, between the outside of powder column 1 and igniter pad 2 and drug cylinder, also be provided with thermal insulation layer 5, top cover 6 is set on the top of cartridge case; When the start-up control device that starts extinguishing device, light igniter pad 2, firework medicament powder column 1 immediately ignites; Be to produce a large amount of aerosol cloud and flame after firework medicament ignites, pass cooling layer 3, the heat that cools off the back flames through cooling layer 3 significantly reduces; That passes through fire retardant device 4 again stops that the thermal losses of flame is serious, can't spray from top cover; But aerosol cloud can be along with the hole overcurrent; Horn mouth 43 at fire retardant device 4 gathers, thereby spurts from the spout of top cover 6, realizes fire extinguishing.
The back-fire relief baffle plate 41 of present embodiment is the circular arc interfacial structure of center protrusion, connects with drainage wall 42 to form a conical structure, adopts the galvanized steel material to process, and other parts and annexation thereof are identical with embodiment 1.
The back-fire relief baffle plate 41 of present embodiment is a concave structure, connects the formation interface with drainage wall 42 and is " W " shape structure, and other parts and annexation thereof are identical with embodiment 1.
The smaller diameter end of the horn mouth 43 of present embodiment and top cover weld the structure that is connected as one, and are processed with breach at the edge of horn mouth 43, make horn mouth 43 and drainage wall 42 jointing positions form smoke through hole 44, and other parts and connecting relation thereof are with embodiment 1.
Though the present invention describes with reference to aforesaid specific embodiment; But those skilled in the art will be appreciated that; Above embodiment only is in order to explanation the present invention rather than restriction the present invention, as long as the scope of in connotation scope of the present invention, the variation of the foregoing description, claims that modification all should fall into the application being asked for protection.
Claims (9)
1. the back-fire relief method of an aerosol fire-extinguishing device is characterized in that may further comprise the steps:
1) on the aerocolloidal injection direction of fire extinguishing, fire retardant device is set, the flame fraction that the firework medicament burning produces is stopped, remain most of flame and disperseed to its edge by drainage through fire retardant device;
2) flame and the aerosol cloud that are dispersed to the fire retardant device edge spread to top cover along the extinguishing device barrel, and are stopped the formation eddy current by top cover;
3) aerosol cloud that forms eddy current makes the cavity internal gas pressure continue to raise from the hole entering fire retardant device of fire retardant device and the cavity between the top cover, when surpassing the spout bearing capacity of top cover, sprays from spout.
2. the back-fire relief method of aerosol fire-extinguishing device according to claim 1; It is characterized in that: the bottom of fire retardant device described in the step (1) is provided with back-fire relief baffle plate (41); The middle part is provided with drainage wall (42), and said drainage wall (42) is obliquely installed the outer in back-fire relief baffle plate (41).
3. the back-fire relief method of aerosol fire-extinguishing device according to claim 1; It is characterized in that: said fire retardant device also comprises horn mouth (43); The hole at the middle part of fire retardant device described in the step (3) is arranged on the horn mouth (43), and the end that said horn mouth (43) diameter is bigger connects with drainage wall (42).
4. the fire retardant device of an aerosol fire-extinguishing device, it is characterized in that: said fire retardant device comprises back-fire relief baffle plate (41) and drainage wall (42); Said drainage wall (42) is obliquely installed the outer in back-fire relief baffle plate (41).
5. fire retardant device according to claim 4 is characterized in that: said fire retardant device also comprises horn mouth (43), and the end that bell-mouthed diameter is bigger connects with drainage wall (42); Go up processing smoke through hole (44) at horn mouth (43).
6. fire retardant device according to claim 5 is characterized in that: between said back-fire relief baffle plate (41) and the drainage wall (42) is sealed attachment.
7. fire retardant device according to claim 6 is characterized in that: said back-fire relief baffle plate (41) is tabular or the arc surface shape.
8. according to each described fire retardant device in the claim 5 to 7, it is characterized in that: said back-fire relief baffle plate (41), drainage wall (42) and horn mouth (43) the formula structure that is processed as one.
9. fire retardant device according to claim 8 is characterized in that: the diameter of said back-fire relief baffle plate (41) is less than the maximum gauge of drainage wall (42), and the maximum gauge of drainage wall (42) is less than the diameter of extinguishing device cartridge case.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012101889004A CN102671330A (en) | 2012-06-11 | 2012-06-11 | Fire retarding method and fire retarding device for aerosol fire extinguisher |
| PCT/CN2013/076619 WO2013185545A1 (en) | 2012-06-11 | 2013-06-02 | Fir-retarding method and device for aerosol fire extinguisher |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012101889004A CN102671330A (en) | 2012-06-11 | 2012-06-11 | Fire retarding method and fire retarding device for aerosol fire extinguisher |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102671330A true CN102671330A (en) | 2012-09-19 |
Family
ID=46804300
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012101889004A Pending CN102671330A (en) | 2012-06-11 | 2012-06-11 | Fire retarding method and fire retarding device for aerosol fire extinguisher |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN102671330A (en) |
| WO (1) | WO2013185545A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2013185545A1 (en) * | 2012-06-11 | 2013-12-19 | 陕西坚瑞消防股份有限公司 | Fir-retarding method and device for aerosol fire extinguisher |
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| CN2104938U (en) * | 1991-10-11 | 1992-05-20 | 龚爱国 | Automotive fireproof cap |
| EP0738524A2 (en) * | 1995-04-20 | 1996-10-23 | Total Walther Feuerschutz GmbH | Fire extinguishing device |
| CN1256956A (en) * | 1999-12-17 | 2000-06-21 | 山西安华灭火器材有限责任公司 | Fire-retardant temp.-regulating type aerosol extinguisher |
| CN2750827Y (en) * | 2004-10-12 | 2006-01-11 | 宋永昌 | Dedicated aerosol fire extinguishing unit for electromechanical cabinet of automobile |
| CN101700427A (en) * | 2009-11-20 | 2010-05-05 | 陕西坚瑞消防股份有限公司 | Hot aerosol fire extinguisher with thermostable ablative-insulative layer and manufacture method |
| CN201815031U (en) * | 2010-09-16 | 2011-05-04 | 陕西坚瑞消防股份有限公司 | Portable aerosol fire extinguishing device |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009160382A (en) * | 2007-12-13 | 2009-07-23 | Hochiki Corp | Smoke extinguisher |
| CN201324458Y (en) * | 2008-11-20 | 2009-10-14 | 周建国 | Low-temperature condensed aerosol automatic fire extinguishing device |
| CN201668904U (en) * | 2010-05-12 | 2010-12-15 | 杭州华神消防科技有限公司 | Automatic low-temperature S-type condensed aerosol fire extinguishing device |
| CN202236991U (en) * | 2011-09-28 | 2012-05-30 | 陕西坚瑞消防股份有限公司 | Novel fixed fire extinguishing apparatus |
| CN102671330A (en) * | 2012-06-11 | 2012-09-19 | 陕西坚瑞消防股份有限公司 | Fire retarding method and fire retarding device for aerosol fire extinguisher |
-
2012
- 2012-06-11 CN CN2012101889004A patent/CN102671330A/en active Pending
-
2013
- 2013-06-02 WO PCT/CN2013/076619 patent/WO2013185545A1/en active Application Filing
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2104938U (en) * | 1991-10-11 | 1992-05-20 | 龚爱国 | Automotive fireproof cap |
| EP0738524A2 (en) * | 1995-04-20 | 1996-10-23 | Total Walther Feuerschutz GmbH | Fire extinguishing device |
| CN1256956A (en) * | 1999-12-17 | 2000-06-21 | 山西安华灭火器材有限责任公司 | Fire-retardant temp.-regulating type aerosol extinguisher |
| CN2750827Y (en) * | 2004-10-12 | 2006-01-11 | 宋永昌 | Dedicated aerosol fire extinguishing unit for electromechanical cabinet of automobile |
| CN101700427A (en) * | 2009-11-20 | 2010-05-05 | 陕西坚瑞消防股份有限公司 | Hot aerosol fire extinguisher with thermostable ablative-insulative layer and manufacture method |
| CN201815031U (en) * | 2010-09-16 | 2011-05-04 | 陕西坚瑞消防股份有限公司 | Portable aerosol fire extinguishing device |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2013185545A1 (en) * | 2012-06-11 | 2013-12-19 | 陕西坚瑞消防股份有限公司 | Fir-retarding method and device for aerosol fire extinguisher |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2013185545A1 (en) | 2013-12-19 |
| WO2013185545A9 (en) | 2014-02-20 |
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| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20120919 |