CN102247678A - Novel explosion-proof pressure relief device and aerosol fire extinguisher using same - Google Patents
Novel explosion-proof pressure relief device and aerosol fire extinguisher using same Download PDFInfo
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- CN102247678A CN102247678A CN2011101694285A CN201110169428A CN102247678A CN 102247678 A CN102247678 A CN 102247678A CN 2011101694285 A CN2011101694285 A CN 2011101694285A CN 201110169428 A CN201110169428 A CN 201110169428A CN 102247678 A CN102247678 A CN 102247678A
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Abstract
The invention provides a novel explosion-proof pressure relief device. The novel explosion-proof pressure relief device is characterized in that organic plates with poor compression resistance or inorganic plates or heat-resistant films are adopted to define a closed space; when gas can not flow through the space smoothly, the pressure in the space is increased; and when the pressure exceeds a pressure limit of a heat insulation member, the heat insulation member cracks automatically to release the pressure, and thus explosion is prevented. In a fire extinguisher equipped with the explosion-proof pressure relief device, gas generated by a gas generator enters a dust-removing and cooling device via the explosion-proof pressure relief device rather than entering the dust-removing and cooling device directly. Accordingly, in case of pressure rise due to blockage of the dust-removing and cooling device or accumulation of excessive gases generated by the gas generator, the heat insulation member cracks in advance so that the gas is released into a box body and then discharged through a gas outlet which is formed on the box body, and thus explosion of the fire extinguisher is prevented, the fire extinguisher is safer and more reliable and the service life of the fire extinguisher is ensured.
Description
Technical field
The present invention relates to a kind of pressure control device that guarantees safe pressure in the closed container, relate in particular to the explosion-proof relief device that a kind of hot aerosol fire extinguisher uses.
Background technology
Existing aerosol fire-extinguishing equipment mainly contains aerosol fire-extinguishing bullet and aerosol fire-extinguishing device, generally is made up of housing or casing, gas generator, ignition mechanism, cooling layer model or cooling system.During use, pyrotechnic charge column is lighted by ignition mechanism, and burning forms the aerosol that contains a large amount of solid particles, produces the SS and the inert gas of enough concentration, is released to the space that catches fire, and suppresses flame combustion, and makes fray-out of flame.Hot-gas sol fire extinguishing agent compares with other extinguishing chemical that to have simple, cheap, a no burn into of device pollution-free, nontoxic, does not damage the ozone layer little residual thing, advantages such as high-speed and high-efficiency, total flooding, comprehensive fire extinguishing.
Hot aerosol fire extinguisher on the market is provided with gas generator, dedusting cooler (that is cooling layer model or cooling system), its structure assembling mode generally is: earlier gas generator is installed in dedusting cooler the inside, and the cooler shell generally is welded into a circle or square straight tube (that is housing or casing) by the 1.5mm steel plate, and coat the thick insulator of 10mm to 20mm at this straight tube inwall, in cooler, put into an amount of cooling ball and cast iron, seal straight-through top with orifice plate at last.
Adopt this package assembly, in fact gas generator and cooler are formed an integral body, and the fire extinguishing gas that gas generator produces can only be discharged as the gas outlet by cooler, if gas generator generation gas is too fast or too much, when perhaps cooler causes taking place to block for some reason, fire-suppressant gas will can not get smooth release, will cause the air pressure in the cooler to increase sharply like this, finally cause the pressure in the cooler thereby explosion phenomenon to occur, influence the security and the service life of condensed aerosol fire extinguishing device above its scope that can bear.
Summary of the invention
At above problem, the invention provides a kind of have the explosion-proof relief device, can guide the smooth and easy discharge of fire extinguishing property gas, the pressure that prevents cooler is excessive and the fire extinguisher of blasting.
The present invention is achieved by the following technical solutions:
A kind of explosion-proof relief device, be arranged in the casing of aerosol fire-extinguishing device, wherein, described explosion-proof relief device has the shell body that fire-proof and thermal-insulation spare is made, this explosion-proof relief crust of the device body has hollow structure, be provided with fire extinguishing property gas generating unit in this hollow structure, this explosion-proof relief device also have dedusting heat sink UNICOM in the casing with the aerosol fire-extinguishing device, be used to derive the fire extinguishing gas that described fire extinguishing gas generating unit produces and derive end to the gas of dedusting heat sink, the compression strength of described fire-proof and thermal-insulation spare is for being less than or equal to 4000 Pa.
Further, described fire-proof and thermal-insulation spare compression strength is 1000Pa to 3000Pa.
Further, described fire-proof and thermal-insulation spare compression strength is 1800Pa.
The another step, described fire-proof and thermal-insulation spare material is any one in organic plates or inorganic board or the heat-resistant film.
Again one the step, the shell body of described explosion-proof relief device comprises: four fire-proof heat insulation boards and four angle bar, described four fire-proof heat insulation boards are fixed into the hollow frame structure by four angle bar.
In addition, described explosion-proof relief device comprises: be arranged on the electronic starter in the hollow structure wherein, this electronic starter is connected with described fire extinguishing gas generating unit; Described electronic starter is the work flip flop equipment of this fire extinguishing property gas generating unit.
A kind of new type explosion proof pressure-relieving fire extinguisher, comprise casing, be arranged on the dedusting heat sink in this casing, also comprise explosion-proof relief device with described dedusting heat sink UNICOM, this explosion-proof relief device is fixed between box bottom and the dedusting heat sink, wherein, described explosion-proof relief device adopts the explosion-proof relief device of said structure.
Further, described cooling dust arrester comprises the cooling ball in shell and filling and this shell.
Further, the shell of described cooling dust arrester is provided with passage by both ends of the surface up and down.
Beneficial effect of the present invention and advantage:
A kind of explosion-proof relief device provided by the invention, adopt not high organic plates, person's inorganic board or the heat-resistant film of anti-pressure ability to surround confined space, gas is by when this space, if can not smooth and easyly discharge, cause the space internal pressure excessive, when surpassing the pressure limit that thermal insulation barriers bore, thermal insulation barriers can break automatically, thereby pressure is discharged, prevent the situation of blast.Equipped the fire extinguisher of above-mentioned explosion-proof relief device, the gas that gas generating unit produced does not directly enter the dedusting heat sink, but enter the dedusting heat sink again through the explosion-proof relief device, design like this, when the dedusting heat sink take place to block or gas generating unit when producing gas too much too fast and bulk deposition causing pressure to raise, thermal insulation barriers can be broken in advance, release the gas in the casing, discharge by the gas outlet on the casing again, prevent that extinguishing device from blasting, make extinguishing device more safe and reliable, guarantee its service life.
Description of drawings
Fig. 1. a kind of new type explosion proof pressure relief device provided by the invention and use the volume rendering structural representation of the fire extinguisher of this device.
The specific embodiment
In order to make purpose of the present invention, technical scheme and advantage clearer,, the present invention is carried out describing in detail in the present embodiment below in conjunction with drawings and Examples.Should be appreciated that specific embodiment described herein only in order to explanation the present invention, and be not used in qualification the present invention.
A kind of explosion-proof relief device 3 provided by the invention, comprise and have the shell body that fire-proof and thermal-insulation spare is made, this explosion-proof relief crust of the device body has hollow structure, be provided with fire extinguishing property gas generating unit 5 in this hollow structure, this explosion-proof relief device also have dedusting heat sink 2 UNICOMs in the casing 1 with the aerosol fire-extinguishing device, be used to derive fire extinguishing gas to the gas of dedusting heat sink 2 that described fire extinguishing gas generating unit 5 produces and derive the compression strength of end (not shown) described fire-proof and thermal-insulation spare for being less than or equal to 4000 Pa.。
The shell body of explosion-proof relief device comprises: four fire-proof heat insulation boards and four angle bar 6, described four fire-proof heat insulation boards are fixed into the hollow frame structure by four angle bar 6.
Above-described explosion-proof relief device, wherein fire-proof and thermal-insulation spare material can be any one in organic plates, inorganic board or the heat-resistant film etc., organic plates among the present invention is the material that does not belong to resistant to elevated temperatures a kind of sheet material organic plates: the chemical name of organic plates is Polystyrene (polystyrene), be called for short GPPS, inorganic board among the present invention can adopt as Chinese invention patent publication number CN101674931, denomination of invention: the inorganic board of the described or similar structures of a kind of inorganic board and preparation method thereof; Heat-resistant film among the present invention can adopt as Chinese invention patent publication number CN1531386, denomination of invention: high temperature insulation film described in high temperature insulation film and the insulating method or similar heat-resistant film, the common trait of these materials is that anti-pressure ability is relatively poor, that is these fire-proof and thermal-insulation spare compression strength generally are adopted as 1000Pa to 3000Pa, when space pressure is increased to the limit that fire-proof and thermal-insulation spare can bear in device, this fire-proof and thermal-insulation spare, inorganic board, organic plates or heat-resistant film will be broken automatically, release pressure.
This explosion-proof relief device 3 also comprises: be arranged on the electronic starter 4 in the hollow structure wherein, this electronic starter 4 is connected with described fire extinguishing gas generating unit 5; Described electronic starter 4 is the work flip flop equipment of this fire extinguishing property gas generating unit 5.Described electronic starter can adopt as Chinese invention patent publication number CN2338913, denomination of invention: the electronic starter of the described structure of electronic starter or the electronic starter of similar structures.
A kind of new type explosion proof pressure-relieving fire extinguisher, comprise casing 1, gas generating unit 5 and dedusting heat sink 2, also comprise explosion-proof relief device 3, this explosion-proof relief device 3 is fixed between casing 1 base plate and the dedusting heat sink 2, described gas generating unit 5 is arranged in the explosion-proof relief device 3 and is fixed on casing 1 base plate, and the gas that described gas generating unit 5 produces enters described dedusting heat sink 2 through described explosion-proof relief device 3.
Dedusting heat sink 2 shells are the square containers that are welded by six block plates, and the steel plate of both ends of the surface is provided with venthole up and down, and the aperture is 10mm, have filled a large amount of cooling balls in the container.
After gas generating unit 5 triggers startup work by electronic starter 4; fire-suppressant gas is full of the interior space of explosion-proof relief device 3 earlier; enter dedusting heat sink 2 by the venthole on the steel plate of dedusting heat sink 2 lower surfaces then, enter casing 1 and the shutter by casing 1 then and be discharged into and realize fire extinguishing in the protected space.When dedusting heat sink 2 occurs blocking when waiting smooth situation of ventilation; the fire-suppressant gas pressure that the explosion-proof relief device is 3 li can increase; the fire-proof and thermal-insulation spare compression strength that adopts among the present invention is 1800Pa; therefore when pressure surpasses 1800Pa; the protection thermal insulation board will break automatically; this moment, most of gas was discharged in the protection zone by casing 1 shutter, had only small part gas through dedusting heat sink 2, had so just avoided the explosion phenomenon of condensed aerosol fire extinguishing device.
The above only is preferred embodiment of the present invention, in order to restriction invention, all any modifications of being done within the spirit and principles in the present invention, is equal to and replaces and improvement etc., all should be included within protection scope of the present invention.
Claims (9)
1. explosion-proof relief device, be arranged in the casing of aerosol fire-extinguishing device, it is characterized in that, described explosion-proof relief device has the shell body that fire-proof and thermal-insulation spare is made, this explosion-proof relief crust of the device body has hollow structure, be provided with fire extinguishing property gas generating unit in this hollow structure, this explosion-proof relief device also has dedusting heat sink UNICOM in the casing with the aerosol fire-extinguishing device, be used to derive the gas derivation end of the fire extinguishing gas of described fire extinguishing gas generating unit generation to the dedusting heat sink, the compression strength of described fire-proof and thermal-insulation spare is for being less than or equal to 4000 Pa.
2. a kind of explosion-proof relief device according to claim 1 is characterized in that described fire-proof and thermal-insulation spare compression strength is 1000Pa to 3000Pa.
3. a kind of explosion-proof relief device according to claim 1 is characterized in that described fire-proof and thermal-insulation spare compression strength is 1800Pa.
4. a kind of explosion-proof relief device according to claim 1 is characterized in that, described fire-proof and thermal-insulation spare material is any one in organic plates or inorganic board or the heat-resistant film.
5. a kind of explosion-proof relief device according to claim 1 is characterized in that the shell body of described explosion-proof relief device comprises: four fire-proof heat insulation boards and four angle bar, described four fire-proof heat insulation boards are fixed into the hollow frame structure by four angle bar.
6. a kind of explosion-proof relief device according to claim 1 is characterized in that, described explosion-proof relief device comprises: be arranged on the electronic starter in the hollow structure wherein, this electronic starter is connected with described fire extinguishing gas generating unit.
7. new type explosion proof pressure-relieving fire extinguisher, comprise casing, be arranged on the dedusting heat sink in this casing, also comprise explosion-proof relief device with described dedusting heat sink UNICOM, this explosion-proof relief device is fixed between box bottom and the dedusting heat sink, it is characterized in that,, described explosion-proof relief device adopts above-mentioned explosion-proof relief device as claim 1 to 6 any structure.
8. a kind of new type explosion proof pressure-relieving fire extinguisher according to claim 5 is characterized in that, described cooling dust arrester comprises the cooling ball in shell and filling and this shell.
9. a kind of new type explosion proof pressure-relieving fire extinguisher according to claim 5 is characterized in that, the shell of described cooling dust arrester is provided with passage by both ends of the surface up and down.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011101694285A CN102247678B (en) | 2011-06-22 | 2011-06-22 | Novel explosion-proof pressure relief device and aerosol fire extinguisher using same |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011101694285A CN102247678B (en) | 2011-06-22 | 2011-06-22 | Novel explosion-proof pressure relief device and aerosol fire extinguisher using same |
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| Publication Number | Publication Date |
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| CN102247678A true CN102247678A (en) | 2011-11-23 |
| CN102247678B CN102247678B (en) | 2012-11-21 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2011101694285A Expired - Fee Related CN102247678B (en) | 2011-06-22 | 2011-06-22 | Novel explosion-proof pressure relief device and aerosol fire extinguisher using same |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105169595A (en) * | 2015-09-07 | 2015-12-23 | 苏州久港消防设备有限公司 | Fire extinguisher inner barrel with explosion venting opening |
| CN105169590A (en) * | 2015-09-07 | 2015-12-23 | 苏州久港消防设备有限公司 | Portable fire extinguisher with explosion venting opening |
| CN107899160A (en) * | 2017-11-15 | 2018-04-13 | 西安尚泰安全技术有限责任公司 | Safe hand-held fire extinguisher |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2142834C1 (en) * | 1998-07-17 | 1999-12-20 | Общество с ограниченной ответственностью "Артех-2000" | Method of volume fire extinguishing and device for its embodiment |
| WO2008086680A1 (en) * | 2007-01-05 | 2008-07-24 | Shaanxi J&R Fire Fighting Co., Ltd | Bi-directional horizontal spraying aerosol fire-extinguishing apparatus |
| CN201755360U (en) * | 2010-05-26 | 2011-03-09 | 陕西坚瑞消防股份有限公司 | Hand-held aerosol fire-fighting device |
-
2011
- 2011-06-22 CN CN2011101694285A patent/CN102247678B/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2142834C1 (en) * | 1998-07-17 | 1999-12-20 | Общество с ограниченной ответственностью "Артех-2000" | Method of volume fire extinguishing and device for its embodiment |
| WO2008086680A1 (en) * | 2007-01-05 | 2008-07-24 | Shaanxi J&R Fire Fighting Co., Ltd | Bi-directional horizontal spraying aerosol fire-extinguishing apparatus |
| CN201755360U (en) * | 2010-05-26 | 2011-03-09 | 陕西坚瑞消防股份有限公司 | Hand-held aerosol fire-fighting device |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105169595A (en) * | 2015-09-07 | 2015-12-23 | 苏州久港消防设备有限公司 | Fire extinguisher inner barrel with explosion venting opening |
| CN105169590A (en) * | 2015-09-07 | 2015-12-23 | 苏州久港消防设备有限公司 | Portable fire extinguisher with explosion venting opening |
| CN105169595B (en) * | 2015-09-07 | 2016-07-06 | 苏州久港消防设备有限公司 | A kind of fire extinguisher inner core with venting of dust explosion mouth |
| CN107899160A (en) * | 2017-11-15 | 2018-04-13 | 西安尚泰安全技术有限责任公司 | Safe hand-held fire extinguisher |
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| Publication number | Publication date |
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| CN102247678B (en) | 2012-11-21 |
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Effective date of registration: 20160722 Address after: 518107, Shenzhen, Guangming District, Guangdong province Gongming office, Tian Liao community Fifth Industrial Zone, 32 floor Patentee after: Shenzhen hongjiali Fire Technology Co. Ltd. Address before: Jiangxi city of Xinyu province Jiangxi steel factory Yushui District 101 room 1 Patentee before: Zhong Haishun Patentee before: Yu Tieniu Patentee before: Liu Xiaoyun |
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20121121 Termination date: 20190622 |
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| CF01 | Termination of patent right due to non-payment of annual fee |