CN103055450A - Spontaneous explosion suppression device - Google Patents
Spontaneous explosion suppression device Download PDFInfo
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- CN103055450A CN103055450A CN2012105521523A CN201210552152A CN103055450A CN 103055450 A CN103055450 A CN 103055450A CN 2012105521523 A CN2012105521523 A CN 2012105521523A CN 201210552152 A CN201210552152 A CN 201210552152A CN 103055450 A CN103055450 A CN 103055450A
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Abstract
The invention discloses a spontaneous explosion suppression device. A combustion chamber of which the surrounding wall is provided with exhaust holes is arranged in a main body shell; powder is filled in the combustion chamber; a nozzle and a spray head which are provided with spray orifices are arranged at the lower end of the combustion chamber; an aluminum alloy diaphragm of which the surface is provided with scratches is arranged at a position of 5 millimeters away from the lower end of the spray head; a fire extinguishing material is filled on the upper part of the diaphragm and among the nozzle, the spray head and the main body shell; and the lower part of the diaphragm is connected with the hemispherical double-layer spray head. When an explosion suppression system detects potential explosion signals, the powder in the combustion chamber is ignited, high-pressure gas generated instantaneously is sprayed out through the nozzle and the spray head to break through the diaphragm, the fire extinguishing material enters the pipeline from the broken diaphragm under the pressure of the gas exhausted from the exhaust holes of the combustion chamber, and the fire extinguishing material and the gas are mixed, sprayed out through the hemispherical double-layer spray head and mixed with explosives in a protected container to stop generation and propagation of flames and suppress explosion. The device is short in explosion response time, low in maintenance cost, safe and stable.
Description
Technical field
The present invention relates to the safety anti-explosive technology, particularly a kind of for the self start type explosion suppression device in the containers such as industrial pipeline, reactor, feed bin.
Background technology
Datonation-inhibition technology in the industrial production refers to have sensor installation in the environment of explosion danger at container etc., quick spray fire extinguishing agent after detecting detonator signal, in the development of blast initial stage confining blast, preventing the further rising of pressure, thereby avoid the technology of damage of facilities.Datonation-inhibition technology can drop to minimum with the destructiveness in the protected container, even can not affect industrial carrying out.
At present, common fire mainly contains automatic sprinkler system, pressure storage type explosion suppression device and split type explosion suppression device etc. with blast monitor-type safeguard.
Automatic sprinkler system is comprised of the assemblies such as sprinkler tip, alarm valve group, water flow alarm device and pipeline and water facilities, detect by sensor, at the initial stage that fire occurs, to the fire extinguishing system of spraying water by the water spray intensity that sets in container or the building.Automatic sprinkler system is mainly used in fire-fighting.Because blast is finished in the hundreds of millisecond usually, automatic sprinkler system can not be used for explosion suppression.
Pressure storage type explosion suppression device is comprised of air storage chamber and storage powder chamber, and indoor extinguish material and the priming powder of being equipped with of storage powder is equipped with gases at high pressure in the air storage chamber, be provided with the gas storage barrier film between storage powder chamber one end and the air storage chamber, and the storage powder chamber other end is provided with the barrier film that dusts.After the preposition pressure wave that device produces by the induction fireball detects the early signal that produces detonation, send triggering signal, active device.When device activates, light the indoor gunpowder of storage powder by igniter fuse, the gas storage barrier film is broken, the gases at high pressure in the air storage chamber enter in the storage powder chamber, carry extinguish material and break through together the barrier film that dusts, and are ejected in the protected place.The shortcoming of this device is: owing to using gases at high pressure, have certain potential safety hazard; For keeping the pressure of gas, need regularly air storage chamber to be inflated, later maintenance cost is higher; Device leaves standstill for a long time, and the indoor extinguish material of storage powder easily hardens, and the extinguish material particle is larger when causing device to start, and inhomogeneous, is sprayed onto and can't forms effective back-fire relief barrier in the protected place, and effectiveness of explosion suppression is descended.
Split type explosion suppression device and pressure storage type explosion suppression principle of device are basic identical, and this device is comprised of gas generator and fire extinguishing unit; Gunpowder is housed in the gas generator; The fire extinguishing unit places a main body cover, in-built extinguish material, and there is barrier film on the upper strata; Gas generator is by establishing septate main flange and joining with upper end, fire extinguishing unit, and fire extinguishing lower end, unit is connected with shower nozzle by the flange of main body cover lower end.When device activates; light gunpowder in the gas generator by igniter fuse, produce a large amount of compressed air, compressed air breaks through barrier film on the main flange and the upper strata barrier film of fire extinguishing unit successively; enter the fire extinguishing unit, the extinguish material that carries in the fire extinguishing unit sprays into protected place by shower nozzle.The advantage of this device is that being in the gas generator when not starting does not need regular inflation by normal pressure, compares pressure storage type explosion suppression device without the potential safety hazard of bringing because of use compressed air, has simplified later maintenance work; Main flange and shower nozzle flange can be opened, and place the fire extinguishing unit in the main body cover to change at any time, avoid extinguish material to cause effectiveness of explosion suppression to reduce because hardening.But this kind installs also existent defect, the one, need periodic replacement fire extinguishing unit, and later maintenance work is still more loaded down with trivial details, and maintenance cost is higher; The 2nd, compressed air need break through laminated diaphragm when starting owing to installing, and causes device that the reaction speed of blast is descended, and the reaction time is longer, and effectiveness of explosion suppression is undesirable.
Summary of the invention
The objective of the invention is for the problem that above-mentioned prior art exists provide a kind of short to the explosive reaction time, maintenance cost is low, without potential safety hazard, self start type explosion suppression device stable and reliable for performance.
For achieving the above object, self start type explosion suppression device provided by the invention comprises main body cover, combustion chamber, barrier film, extinguish material and shower nozzle; Wherein main body cover is cylindrical tube, and the top is that hemispherical binds; The combustion chamber is cylindrical, with the coaxial main body cover inside that is installed in of main body cover, its perisporium is provided with a plurality of steam vents, combustion chamber top cover and main body cover top join, the combustion chamber is in-built cordite, is equipped with the incendiary source that joins with igniter fuse in the gunpowder, and lower end, combustion chamber and conical nozzle join, nozzle lower end and cylindrical gas shower nozzle join, and a plurality of spray orifices are arranged around the gas tip; Described barrier film is installed in apart from 5mm place, gas tip lower end by the flange that joins with the main body cover lower end, and this barrier film is made by aluminium alloy, thick 2.5mm, and cut is carved with on the surface; Described extinguish material places the space that is formed by barrier film, nozzle, gas tip and main body cover; Barrier film joins below by flange and tapered pipeline, and tapered pipeline is connected with shower nozzle by connecting pipe.
Described shower nozzle is the hemispherical double-decker with spray orifice.
In the internal layer centre of described shower nozzle one conical mushroom head is arranged.
Described extinguish material is water or dry powder.
Compared with prior art, advantage of the present invention is as follows:
(1) combustion chamber is directly installed in the main body cover of depositing extinguish material, during device work, the gases at high pressure that the combustion chamber produces are divided into two-way, wherein one the tunnel only need break through one deck barrier film, and when breaking through barrier film, another Lu Zeyu extinguish material mixes rapidly, spray from shower nozzle by pipeline, the mist formation time is less than 50ms, and far faster than split type explosion suppression device and pressure storage type Explosionsunter-druckungssystem, explosion suppression is effective to the reaction speed of blast.
(2) extinguish material is in bulk in main body cover, and top is not sealed, and the centre is inserted with tubular nozzle, makes it be difficult for hardening, and datonation-inhibition function is stable, generally need not to regularly replace extinguish material after the installation first, and maintenance cost is extremely low.
Internal pressure was not normal pressure when (3) device was had an effect, and did not need pressurising, and without potential safety hazard, the follow-up maintenance workload is few.
Description of drawings
Fig. 1 is the overall structure cutaway view of the embodiment of the invention 1;
Fig. 2 is the overall structure cutaway view of the embodiment of the invention 2;
Fig. 3 is the application schematic diagram of the embodiment of the invention 1;
Fig. 4 is the application schematic diagram of the embodiment of the invention 2;
Among the figure, 1. combustion chamber top cover, 2. incendiary source, 3. main body cover, 4. combustion chamber, 5. nozzle, 6. extinguish material, 7. fumarole, 8. gas tip, 9. barrier film, 10. igniter fuse, 11. flanges, 12. tapered pipeline, 13. connecting pipe A, 13 ＇. connecting pipe B, 14. mushroom heads, 15. shower nozzles.
The specific embodiment
The invention will be further described below in conjunction with drawings and Examples.
The present embodiment self start type explosion suppression device as shown in Figure 1, is straight shape.Its main body cover 3 is cylindrical tube, and the top is that hemispherical binds; Cylindrical combustion chamber 4 and the coaxial main body cover inside that is installed in of main body cover, its perisporium is provided with a plurality of steam vents; Combustion chamber top cover 1 joins with the main body cover top, symmetrical four the steam vent (not shown) with level angle at 45 ° of its periphery; The cordite of the in-built useful plastic bag packaging in combustion chamber, gunpowder is mid-incendiary source 2, and incendiary source joins by the outside detonator signal detection system of igniter fuse 10 and device; Lower end, combustion chamber and conical nozzle 5 join, and around the nozzle bottom spray orifice 7 are arranged, and nozzle lower end and cylindrical gas shower nozzle 8 join, and a plurality of spray orifices are arranged around the gas tip; Utilize the flange 11 that joins with the main body cover lower end that barrier film 9 is installed about distance gas tip lower end 5mm, this barrier film is made by aluminium alloy, and about thick 2.5mm, cut (being similar to the venting of dust explosion sheet) is carved with on the surface; According to the characteristics in datonation-inhibition place, select to be filled in the space that is formed by barrier film 9, nozzle 5 and gas tip 8 and main body cover 3 by the extinguish material 6 that water or powder consist of; Barrier film joins below by flange 11 and tapered pipeline 12, tapered pipeline is connected by the double-deck shower nozzle 15 of straight shape connecting pipe 13 and hemispherical, the internal layer spray holes aperture of shower nozzle 15 is larger, outer spray holes aperture is less, when extinguish material is powder, harden because standing time is long for preventing extinguish material, reduce the extinguish and anti-explosion effect, establish a conical mushroom head 14 in the internal layer centre of shower nozzle, when being used for extinguish material and spraying with its separating twice.
As shown in Figure 3, the present embodiment explosion suppression device places outside the protected container when using, and is vertically mounted on the top of container, and forward end seal places in the container.When the flame probe of controller and pressure probe detect the explosion danger that Mars, flame or pressure jumps etc. potential, can send the triggering signal of telecommunication of a system works.When self start type explosion suppression device receives this signal, meeting is the indoor gunpowder of ignition combustion immediately, the powder burning blast, moment produces a large amount of gases, be accompanied by the rising of pressure, the burned chamber of these gases is divided into two parts: a part flows to the nozzle of lower end, combustion chamber, sprays to barrier film from gas tip; Another part is discharged from the steam vent of combustion chamber perisporium and the steam vent of combustion chamber lid periphery, the extinguish material in the extruding main body cover.The gas that wherein flows to the barrier film direction is subjected to the effect of conical nozzle, and flow velocity increases, and the pressure of instantaneous generation ranges up to 16MPa, and the aluminium alloy barrier film is under so large pressed gas impacts, and cut surfacewise breaks rapidly; Then extinguish material is pushed tapered pipeline and connecting pipe along the barrier film that breaks from the gas of combustion chamber perisporium and upper end discharge; mix the rear double-deck shower nozzle that arrives with the gas that gunpowder explosion produces; after the further fragmentation of the mushroom head on the shower nozzle internal layer, fully mix with Compressed Gas; be atomized into the minimum powder cloud of particle or water smoke ejection finally by the less spray orifice of shower nozzle skin; explosive regional at the shower nozzle leading portion and in the protected container mixes; stop generation and the propagation of flame, play the extinguish and anti-explosion effect.
Embodiment 2
The present embodiment is Curved self start type explosion suppression device as shown in Figure 2.Except connecting pipe adopted 90 ° of bend pipes, all the other structures were all identical with embodiment 1, and the extinguish and anti-explosion principle is also identical.As shown in Figure 4, when the present embodiment restraining device uses, be installed in the side of protected container, forward end seal places in the container.During work, extinguish material sprays in the container from the side level of protected container.This embodiment is applicable to the datonation-inhibition of the larger environment such as pipeline of large-sized silo, cylindrical reactor or latus rectum.
Claims (4)
1. a self start type explosion suppression device comprises main body cover (3), combustion chamber (4), barrier film (9), extinguish material (6) and shower nozzle (15); It is characterized in that: main body cover is cylindrical tube, and the top is that hemispherical binds; The combustion chamber is cylindrical, with the coaxial main body cover inside that is installed in of main body cover, its perisporium is provided with a plurality of steam vents, combustion chamber top cover (1) joins with the main body cover top, the combustion chamber is in-built cordite, is equipped with the incendiary source (2) that joins with igniter fuse (10) in the gunpowder, and lower end, combustion chamber and conical nozzle (5) join, nozzle lower end and cylindrical gas shower nozzle (8) join, and a plurality of spray orifices are arranged around the gas tip; Described barrier film (9) is installed in apart from 5mm place, gas tip lower end by the flange (11) that joins with the main body cover lower end, and this barrier film is made by aluminium alloy, thick 2.5mm, and cut is carved with on the surface; Described extinguish material (6) places the space that is formed by barrier film, nozzle (5), gas tip (8) and main body cover (3); Barrier film joins below by flange (11) and tapered pipeline (12), and tapered pipeline is connected with shower nozzle (15) by connecting pipe (13,13 ＇).
2. self start type explosion suppression device according to claim 1 is characterized in that: described shower nozzle (15) is the hemispherical double-decker with spray orifice.
3. self start type explosion suppression device according to claim 1 and 2 is characterized in that: a conical mushroom head (14) is arranged in the internal layer centre of described shower nozzle (15).
4. self start type explosion suppression device according to claim 1, it is characterized in that: described extinguish material (6) is water or dry powder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210552152.3A CN103055450B (en) | 2012-12-17 | 2012-12-17 | Spontaneous explosion suppression device |
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|---|---|---|---|
| CN201210552152.3A CN103055450B (en) | 2012-12-17 | 2012-12-17 | Spontaneous explosion suppression device |
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| CN103055450A true CN103055450A (en) | 2013-04-24 |
| CN103055450B CN103055450B (en) | 2014-12-10 |
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Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104315935A (en) * | 2014-10-11 | 2015-01-28 | 上海应用技术学院 | Automatic explosion suppressing device applicable to dust explosion in pipeline |
| CN105396247A (en) * | 2015-11-05 | 2016-03-16 | 北京世纪联保消防新技术有限公司 | 320-degree multi-nozzle automatic fire extinguishing device with single plug |
| CN105396248A (en) * | 2015-11-05 | 2016-03-16 | 北京世纪联保消防新技术有限公司 | 180-degree multi-nozzle automatic fire extinguishing device with single plug |
| CN105561509A (en) * | 2015-11-05 | 2016-05-11 | 北京世纪联保消防新技术有限公司 | Single plug pipe type multi-nozzle automatic fire extinguishing apparatus |
| CN108159602A (en) * | 2017-11-27 | 2018-06-15 | 中国计量大学 | A kind of explosion suppression devices for promoting the datonation-inhibition medium predecomposition of powder |
| CN109364400A (en) * | 2018-09-25 | 2019-02-22 | 武汉理工大学 | A kind of semi-automatic back-fire relief explosion suppression device |
| CN109381822A (en) * | 2018-12-03 | 2019-02-26 | 河南理工大学 | A kind of devices and methods therefor for inhibiting combustible gas deflagration flame to propagate |
| CN110368617A (en) * | 2019-06-14 | 2019-10-25 | 西安尚泰安全技术有限责任公司 | A kind of water system gas-pushing extinguishing method and device |
| CN111514496A (en) * | 2020-05-28 | 2020-08-11 | 大连度达理工安全***有限公司 | Open space suppressor |
| CN111828841A (en) * | 2020-07-06 | 2020-10-27 | 北京科技大学 | System for actively inhibiting explosion of toxic and harmful gases |
| CN112370697A (en) * | 2020-10-29 | 2021-02-19 | 黄丹丹 | Oxygen consumption type quick fire extinguishing device for sealed tank body |
| CN112504015A (en) * | 2020-12-15 | 2021-03-16 | 盐城市鼎力新材料有限公司 | Shearing resistant device for lightweight aggregate fiber concrete |
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| US20020117312A1 (en) * | 2001-02-23 | 2002-08-29 | Fike Corporation | Deflagration and explosion suppression and isolation apparatus for contained hazardous material |
| CN201211404Y (en) * | 2008-07-17 | 2009-03-25 | 西安科技大学 | Gas dust explosion prevention device |
| CN201783118U (en) * | 2010-08-27 | 2011-04-06 | 山东环绿康新材料科技有限公司 | Explosion-proof ultra-fine-powder fire extinguishing plant |
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Cited By (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104315935A (en) * | 2014-10-11 | 2015-01-28 | 上海应用技术学院 | Automatic explosion suppressing device applicable to dust explosion in pipeline |
| CN105396247A (en) * | 2015-11-05 | 2016-03-16 | 北京世纪联保消防新技术有限公司 | 320-degree multi-nozzle automatic fire extinguishing device with single plug |
| CN105396248A (en) * | 2015-11-05 | 2016-03-16 | 北京世纪联保消防新技术有限公司 | 180-degree multi-nozzle automatic fire extinguishing device with single plug |
| CN105561509A (en) * | 2015-11-05 | 2016-05-11 | 北京世纪联保消防新技术有限公司 | Single plug pipe type multi-nozzle automatic fire extinguishing apparatus |
| CN108159602B (en) * | 2017-11-27 | 2020-06-16 | 中国计量大学 | Explosion suppression device for promoting predecomposition of powder explosion suppression medium |
| CN108159602A (en) * | 2017-11-27 | 2018-06-15 | 中国计量大学 | A kind of explosion suppression devices for promoting the datonation-inhibition medium predecomposition of powder |
| CN109364400A (en) * | 2018-09-25 | 2019-02-22 | 武汉理工大学 | A kind of semi-automatic back-fire relief explosion suppression device |
| CN109364400B (en) * | 2018-09-25 | 2020-11-03 | 武汉理工大学 | Semi-automatic fire and explosion suppression device |
| CN109381822A (en) * | 2018-12-03 | 2019-02-26 | 河南理工大学 | A kind of devices and methods therefor for inhibiting combustible gas deflagration flame to propagate |
| CN110368617A (en) * | 2019-06-14 | 2019-10-25 | 西安尚泰安全技术有限责任公司 | A kind of water system gas-pushing extinguishing method and device |
| CN111514496A (en) * | 2020-05-28 | 2020-08-11 | 大连度达理工安全***有限公司 | Open space suppressor |
| CN111828841A (en) * | 2020-07-06 | 2020-10-27 | 北京科技大学 | System for actively inhibiting explosion of toxic and harmful gases |
| CN111828841B (en) * | 2020-07-06 | 2021-11-05 | 北京科技大学 | System for actively inhibiting explosion of toxic and harmful gases |
| CN112370697A (en) * | 2020-10-29 | 2021-02-19 | 黄丹丹 | Oxygen consumption type quick fire extinguishing device for sealed tank body |
| CN112370697B (en) * | 2020-10-29 | 2021-11-23 | 郑世泉 | Oxygen consumption type quick fire extinguishing device for sealed tank body |
| CN112504015A (en) * | 2020-12-15 | 2021-03-16 | 盐城市鼎力新材料有限公司 | Shearing resistant device for lightweight aggregate fiber concrete |
| CN112504015B (en) * | 2020-12-15 | 2022-08-23 | 盐城市鼎力新材料有限公司 | Shearing resistant device for lightweight aggregate fiber concrete |
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