CN104353209A - Nitrogen-driven powder extinguishing system - Google Patents
Nitrogen-driven powder extinguishing system Download PDFInfo
- Publication number
- CN104353209A CN104353209A CN201410486780.5A CN201410486780A CN104353209A CN 104353209 A CN104353209 A CN 104353209A CN 201410486780 A CN201410486780 A CN 201410486780A CN 104353209 A CN104353209 A CN 104353209A
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- nitrogen
- dry powder
- extinguishing system
- storage tank
- powder
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- A—HUMAN NECESSITIES
- A62—LIFE-SAVING; FIRE-FIGHTING
- A62C—FIRE-FIGHTING
- A62C35/00—Permanently-installed equipment
- A62C35/02—Permanently-installed equipment with containers for delivering the extinguishing substance
- A62C35/023—Permanently-installed equipment with containers for delivering the extinguishing substance the extinguishing material being expelled by compressed gas, taken from storage tanks, or by generating a pressure gas
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- Health & Medical Sciences (AREA)
- Public Health (AREA)
- Business, Economics & Management (AREA)
- Emergency Management (AREA)
- Nozzles (AREA)
Abstract
The invention discloses a nitrogen-driven powder extinguishing system which has a power cylinder group composed of multiple high pressure nitrogen cylinders, a powder storage tank which is communicated with the power cylinder group through pipelines and spray-heads which is arranged in a target area. The bottom in the powder storage tank is provided with multiple jet orifices which are communicated with the power cylinder group outside the tank body through inner pipelines. During working hours, the power cylinder group starts, and outgoing nitrogen enters the storage tank and is ejected out of the jet orifices, carrying a dry powder to pass through a gas outlet pipeline and reach the spray-heads in the target area. During working hours, high pressure gas is blown out from below (inside of) the deposited dry powder; the gas ejected at high speed blows away the deposited dry powder such that the dry powder can fill the storage tank rapidly and uniformly and is mixed with the gas to form powdered smoke; and the powdered smoke, driven by the gas which enters the storage tank subsequently and continuously, enters the target area through a pipeline.
Description
Technical field
The present invention relates to a kind of powder extinguishing system using nitrogen as driving force.Relate to Patent classificating number A62 lifesaving; The device A 62C35/02 of the permanent installation of fire-fighting A62C fire-fighting A62C35/00 has conveying extinguishing material container.
Background technology
Nitrogen is as the fire extinguishing system of power, and have toggle speed fast, do not rely on the advantages such as external power supply, its scope of application is more and more wider.This type of fire extinguishing system is all using liquid foam as extinguishing chemical, by nitrogen injection in storage tank, improves storage tank internal gas pressure, by air pressure liquid foam is extruded storage tank and is sent to the region of specifying by pipeline.
But the accommodation of fire foam is limited, to the fire of particular types to put out effect unsatisfactory, and owing to being liquid foam, so the fire of document category should not be put out, traditional dry-chemical fire extinguishing can only be used.
But dry powder is owing to being pressed powder, when storing for a long time, character easily changes, and the dry powder that especially granularity is larger, is more easily deposited on tank bottom, easily the external pipeline exported of blocking.And due to be gas as power, stable gas phase and liquid interface cannot be formed, namely not by the liquid below the monolithic extruded tank body of gas pressure on tank body top.
Summary of the invention
The present invention is directed to the problem that dry powder stores caking blocking pipeline for a long time, and the powder extinguishing system that a kind of nitrogen of development drives, have: the power bottle group of multiple high-pressure nitrogen bottle composition, the dry powder storage tank be communicated with power bottle group by pipeline and the shower nozzle being arranged on target area.Bottom in described dry powder storage tank is provided with multiple spray-hole, and described spray-hole is communicated with the power bottle group of tank body outside by interior pipeline; During work, power bottle group starts, and the nitrogen of extraction enters storage tank, is sprayed by spray-hole, carries dry powder arrives target area shower nozzle by outlet pipe.
During work, gases at high pressure from deposition dry powder below (inside) blow out, the gas of ejection dispels the dry powder of deposition at a high speed, dry powder is enable to be full of storage tank rapidly and uniformly, form dry powder smog with gas and vapor permeation, dry powder smog constantly enters under the promotion of the gas of storage tank by pipeline target approach region follow-up.
As preferred embodiment, described interior pipeline comprises close at the bottom of tank, with the transverse tube of tank body centerline axis parallel; The vertical tube be communicated with transverse tube; Described multiple spray-holes are arranged on the top of transverse tube.Under store status, transverse tube and spray-hole are covered by dry powder.Owing to being arranged on tank base, dispel the efficiency of depositing dry powder higher than other set-up mode.
Further, in order to further accelerate the speed dispelling depositing dry powder, make dry powder within the shortest time, be full of whole storage tank, as preferred embodiment, have the arm that multiple and described transverse tube is connected, the upper end of described arm has multiple spray-hole.By at the bottom of tank
Further, consider the cylinder form of tank body, the below of horizontally disposed transverse tube and arm has larger blind area, therefore highly preferred embodiment, described multiple arms have the radian matched with inner wall shape at the bottom of tank, and namely arm is bend pipe.Such mounting means, transverse tube and arm can be pressed close at the bottom of tank to arrange, and eliminate blind area, add the speed that dry powder is full of tank body, add equally distributed efficiency.
As another preferred embodiment, below interior pipeline, be provided with multiple fan, when in tank body during injecting gas, multiple fan rotates, dry powder is kicked up above tank body, can within the extremely short time, make dry powder be full of whole tank body uniformly, decrease SRT.
Further, in order to dry powder turbulent flow can be produced at tank body, to increase the uniformity of tank interior dry powder blend, as preferred embodiment, the direction of rotation of two adjacent fans is contrary, compared to multiple fans that direction of rotation is consistent, the time that dry powder is full of whole tank body space is uniformly shorter.
Further, be provided with playpipe (substituting aforesaid spray-hole) below described transverse tube, the gases at high pressure exported by playpipe, are directly blown into the rotary area of fan, further add the diffusion velocity of dry powder and the uniformity of distribution.(if the in-position of gas separates with fan area, can dry powder density be caused in gas outlet areas obviously to reduce, and reduces the uniformity of dry powder distribution)
Further, as preferred embodiment, the direction of described playpipe Exhaust Gas is tangent or consistent with the direction of rotation of fan.The gas of ejection forms spiralling air-flow under the drive of fan.Add the efficiency of the gas flowing of tank body, more dry powder can be carried in shorter time.And due to the direction of rotation of adjacent fan different, the direction of rotation of namely adjacent two strands of ascending airs (dry powder smog) is not identical yet, and the dry powder of adjacent two spiral air flows more easily mixes, and adds the efficiency that dry powder is full of storage tank at short notice.
As another preferred embodiment, multiple unpowered fan is provided with below described interior pipeline; Each unpowered fan is furnished with the playpipe that the described unpowered fan of a driving rotates; During work, playpipe sprays nitrogen at a high speed, and described nitrogen drives unpowered fan to rotate, and stirs the dry powder of deposition.
Dry powder in storage tank deposits for a long time, inevitably produce the dry powder block of larger particles degree, the stream pressure especially in storage tank is comparatively large, and in simple dependence tank body, dry powder can not be smashed by air-flow at short notice soon completely, cause dry powder to enter into shower nozzle by pipeline soon, cause shower nozzle to block.
Pretending is a preferably embodiment, and described shower nozzle has an inner chamber, and described inner chamber comprises the straight length with described pipeline connection; Be positioned at the stop part I in straight length front, this stop part has bottom surface and the inclined lateral side around this bottom surface, and the bearing of trend of this inclined lateral side is provided with stop part II.Introduced the dry powder first high speed impact stop part I of shower nozzle by straight length, smash dry powder fast; Dry powder after smashing is discharged along the inclined lateral side of stop part I periphery, impacts stop part II, complete secondary and smash under the guiding of side, and finally, dry powder sprays along the edge of stop part II.Smash process 2 times due to what exist, can ensure that dry powder soon can by sufficient fragmentation, ensure that the unimpeded of shower nozzle in course of injection.
Accompanying drawing explanation
In order to the technical scheme of clearer explanation embodiments of the invention or prior art, introduce doing one to the accompanying drawing used required in embodiment or description of the prior art simply below, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
Fig. 1 is the schematic diagram of shower nozzle of the present invention
Fig. 2 is the A-A schematic cross-section of shower nozzle of the present invention
Fig. 3 is the B-B schematic cross-section of shower nozzle of the present invention
Fig. 4 is the schematic diagram of the embodiment of the present invention 1 storage tank
Fig. 5 is the top view of the embodiment of the present invention 1 storage tank
Fig. 6 is the side view A of the embodiment of the present invention 1 storage tank
Fig. 7 is the side view B of the embodiment of the present invention 2 storage tank
Fig. 8 is the schematic diagram of the embodiment of the present invention 3 storage tank
Fig. 9 is the top view of the embodiment of the present invention 3 storage tank
Figure 10 is the side view of the embodiment of the present invention 3 storage tank
Detailed description of the invention
For making the object of embodiments of the invention, technical scheme and advantage clearly, below in conjunction with the accompanying drawing in the embodiment of the present invention, clear complete description is carried out to the technical scheme in the embodiment of the present invention:
Embodiment 1, as Figure 4-Figure 6: storage tank 2 comprises the columniform tank body in middle part, and global approximation is capsule shape.The necessary instrument such as Pressure gauge are provided with above storage tank 2.Storage tank 2 upper opening and introduce a vertical tube 21, this vertical tube 21 be arranged on outside multiple nitrogen power bottle groups and be communicated with, in tank body, introduce nitrogen.
The bottom of described vertical tube 21 is also connected with a transverse tube 22, and this transverse tube 22, near the bottom of storage tank 2, is horizontally disposed with, and is threaded by elbow with vertical tube 21.Be provided with in the both sides of transverse tube 22 and be multiplely similarly horizontally disposed arm 24.Connector is set at two STHs of transverse tube 22 and fixes described multiple arms 24.The spray-hole 25 of multiple spaced set is provided with at the upper surface of arm 24 and transverse tube 22.When dry powder deposition is bottom storage tank 2 time, dry powder covers arm 24 and transverse tube 22.When spray-hole 25 is vented, the dry powder of deposition can be made to be full of whole storage tank 2.
Embodiment 2, as shown in Figure 7: the overall structure of the tank body 2 of the present embodiment and the similar of embodiment 1, difference is only on arm 24, and the shape of arm 24 is arc, consistent with the radian bottom storage tank 2.Relative to the mode in embodiment 1, transverse tube 22 and arm 24 are closer to the bottom of storage tank 2, and namely the position of spray-hole 25 is lower, dispels the better effects if of depositing dry powder, and blind area is also less.
Embodiment 3, as shown in Figure 8: the inside of storage tank 2 is provided with vertical tube 21 equally, the front end of vertical tube 21 is connected with transverse tube 22 by 90 ° of elbows, is provided with four fans 26 adapted with transverse tube length in the below of transverse tube 22, described transverse tube 22 be with storage tank 2 axis immediately below.Also be provided with the playpipe 27 arranged in groups with fan 26, playpipe 27 is for introducing high pressure nitrogen.The direction of rotation of two adjacent fans 26 is contrary.
During work, the generation air-flow straight up of described fan 26, drive the dry powder of deposition to tank body tip motions, because fan 26 is all arranged on the below of storage tank 26 axis, and the airflow direction produced straight up, when the air-flow carrying dry powder arrives storage tank 2 top, by the impact of storage tank 2 circular cross-section, described air-flow can be divided into two strands of air-flows, and moves downwardly at the bottom of tank along the sidewall of storage tank 2, is again held up by the air-flow that fan 26 produces.The fan 26 arranged, while breaing up the dry powder block of deposition fast, can form the air-flow of circulation in tank body, in a short period of time, can ensure the uniformity of dry powder distribution in tank body.
In addition, the difference of adjacent fans 26 direction of rotation, also the air-flow carrying dry powder is caused just very easily to act on turbulization mutually in connected air-flow in uphill process, increase the exchange of dry powder, increase the probability that larger dry powder collides soon mutually, ensure the granularity of dry powder, can, within the shorter time, make dry powder be full of whole storage tank 2 simultaneously.
Shower nozzle 1 as shown in the front view of Fig. 1, the opening that front comprises 15, four arcuate sockets 15 in hole of 4 arcs is comparatively large, approximate formation one circumferential apertures.As shown in Figures 2 and 3: shower nozzle 1 comprises straight length 11, for introducing the air-flow carrying dry powder particle and the circular arc runner being communicated with straight length 11 and hole 15, a stop part I is provided with in the dead ahead of straight length 11, the middle part of this stop part I is the end 12 of a sub-circular, the surrounding at this end is the edge 13 with certain gradient, high velocity air spreads at the impact end 12 trailing edge 13, under the guiding at edge 13, gas impacts the sidewall of circular arc runner, one section of circular arc sidewall is stop part II, air-flow pressure arced flow path after impact moves on and is finally sprayed by hole 15.The air-flow carrying dry powder, through 2 collisions with stop part II, can ensure that dry powder block is fully smashed, can not cause the blocking of shower nozzle 1.
Embodiment 4, compared with embodiment 3, difference is only that described fan 26 is unpowered fan, the gas push that during work, fan 26 is sprayed by playpipe 27 rotates, stir the dry powder of deposition, fan carries out drainage to the high-speed gas that playpipe 27 sprays simultaneously, produce the air-flow on screw, flow similar with the air in embodiment 3 tank body, relative to simple, multiple spray-hole is set, within the shorter time, the dry powder being deposited as block can be smashed, make dry powder be full of whole tank body more rapidly simultaneously.
The above; be only the present invention's preferably detailed description of the invention; but protection scope of the present invention is not limited thereto; anyly be familiar with those skilled in the art in the technical scope that the present invention discloses; be equal to according to technical scheme of the present invention and inventive concept thereof and replace or change, all should be encompassed within protection scope of the present invention.
Claims (10)
1. a powder extinguishing system for nitrogen driving, is characterized in that having: the power bottle group of multiple high-pressure nitrogen bottle composition, the dry powder storage tank be communicated with power bottle group by pipeline and the shower nozzle being arranged on target area;
Bottom in described dry powder storage tank is provided with multiple spray-hole, and described spray-hole is communicated with the power bottle group of tank body outside by interior pipeline; During work, power bottle group starts, and the nitrogen of extraction enters storage tank, is sprayed by spray-hole, carries dry powder arrives target area shower nozzle by outlet pipe.
2. the powder extinguishing system of nitrogen driving according to claim 1, is further characterized in that: described interior pipeline comprises close at the bottom of tank, with the transverse tube of tank body centerline axis parallel; The vertical tube be communicated with transverse tube; Described multiple spray-holes are arranged on the top of transverse tube.
3. the powder extinguishing system of nitrogen driving according to claim 2, be further characterized in that the arm having multiple and described transverse tube and be connected, the upper end of described arm has multiple spray-hole.
4. the powder extinguishing system that drives of nitrogen according to claim 3, be further characterized in that described multiple arms have to match with inner wall shape at the bottom of tank and radian.
5. the powder extinguishing system of nitrogen driving according to claim 1, is further characterized in that and is provided with multiple fan below described interior pipeline; During work, described multiple fans rotate, and are kicked up by the dry powder be deposited in below tank body, tank interior all with distribute, the gases at high pressure that above interior pipeline, spray-hole sprays carry dry powder by pipeline target approach region.
6. the powder extinguishing system of nitrogen driving according to claim 5, is further characterized in that the fan direction of rotation that the direction of rotation of described multiple fans is adjacent is contrary.
7. the powder extinguishing system that nitrogen according to claim 5 or 6 drives, is further characterized in that and is also provided with playpipe below described transverse tube.
8. the powder extinguishing system of nitrogen driving according to claim 7, is further characterized in that described playpipe and described fan are arranged in groups, and the direction of playpipe ejection gas is consistent with fan direction of rotation.
9. the powder extinguishing system of nitrogen driving according to claim 1, is further characterized in that and is provided with multiple unpowered fan below described interior pipeline; Each unpowered fan is furnished with the playpipe that the described unpowered fan of a driving rotates; During work, playpipe sprays nitrogen at a high speed, and described nitrogen drives unpowered fan to rotate, and stirs the dry powder of deposition.
10. the powder extinguishing system of nitrogen driving according to claim 1, be further characterized in that described shower nozzle has an inner chamber, described inner chamber comprises the straight length with described pipeline connection; Be positioned at the stop part I in straight length front, this stop part has bottom surface and the inclined lateral side around this bottom surface, and the bearing of trend of this inclined lateral side is provided with stop part II.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410486780.5A CN104353209A (en) | 2014-09-22 | 2014-09-22 | Nitrogen-driven powder extinguishing system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410486780.5A CN104353209A (en) | 2014-09-22 | 2014-09-22 | Nitrogen-driven powder extinguishing system |
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| Publication Number | Publication Date |
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| CN104353209A true CN104353209A (en) | 2015-02-18 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201410486780.5A Pending CN104353209A (en) | 2014-09-22 | 2014-09-22 | Nitrogen-driven powder extinguishing system |
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| CN (1) | CN104353209A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107082403A (en) * | 2017-06-20 | 2017-08-22 | 南京信息职业技术学院 | Unpowered liquid slow conveying device |
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| JP2001259066A (en) * | 2000-03-17 | 2001-09-25 | Yamato Protec Co | Powder storing tank for movable powder fire- extinguishing equipment |
| RU2209101C1 (en) * | 2002-02-11 | 2003-07-27 | Всероссийский научно-исследовательский институт противопожарной охраны лесов и механизации лесного хозяйства | Powder-type fire extinguisher |
| CN2758277Y (en) * | 2004-12-23 | 2006-02-15 | 北京工业大学 | Synchronized power feeding device for laser fast shaping |
| CN2870900Y (en) * | 2005-12-20 | 2007-02-21 | 宋明韬 | Cabinet superfine dry-powdery extinguisher |
| CN102335491A (en) * | 2011-07-27 | 2012-02-01 | 江苏中瑞电保智能装备有限公司 | Pipe network type dry powder fire extinguishing system and method |
| CN102406999A (en) * | 2011-07-27 | 2012-04-11 | 江苏中瑞电保智能装备有限公司 | Pipe network type divisional dry powder fire extinguishing system and method |
| CN203677812U (en) * | 2014-01-26 | 2014-07-02 | 明光市浩淼消防科技发展有限公司 | Powder boiling device in powder storage tank |
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2014
- 2014-09-22 CN CN201410486780.5A patent/CN104353209A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2302817Y (en) * | 1997-08-09 | 1999-01-06 | 梁鑫海 | Horizontal dry-power fire-extinguisher |
| JP2001259066A (en) * | 2000-03-17 | 2001-09-25 | Yamato Protec Co | Powder storing tank for movable powder fire- extinguishing equipment |
| RU2209101C1 (en) * | 2002-02-11 | 2003-07-27 | Всероссийский научно-исследовательский институт противопожарной охраны лесов и механизации лесного хозяйства | Powder-type fire extinguisher |
| CN2758277Y (en) * | 2004-12-23 | 2006-02-15 | 北京工业大学 | Synchronized power feeding device for laser fast shaping |
| CN2870900Y (en) * | 2005-12-20 | 2007-02-21 | 宋明韬 | Cabinet superfine dry-powdery extinguisher |
| CN102335491A (en) * | 2011-07-27 | 2012-02-01 | 江苏中瑞电保智能装备有限公司 | Pipe network type dry powder fire extinguishing system and method |
| CN102406999A (en) * | 2011-07-27 | 2012-04-11 | 江苏中瑞电保智能装备有限公司 | Pipe network type divisional dry powder fire extinguishing system and method |
| CN203677812U (en) * | 2014-01-26 | 2014-07-02 | 明光市浩淼消防科技发展有限公司 | Powder boiling device in powder storage tank |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107082403A (en) * | 2017-06-20 | 2017-08-22 | 南京信息职业技术学院 | Unpowered liquid slow conveying device |
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Application publication date: 20150218 |
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