WO2009153848A1 - 消火用噴霧ノズルおよび消火設備 - Google Patents
消火用噴霧ノズルおよび消火設備 Download PDFInfo
- Publication number
- WO2009153848A1 WO2009153848A1 PCT/JP2008/060953 JP2008060953W WO2009153848A1 WO 2009153848 A1 WO2009153848 A1 WO 2009153848A1 JP 2008060953 W JP2008060953 W JP 2008060953W WO 2009153848 A1 WO2009153848 A1 WO 2009153848A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- fire
- extinguishing
- spray nozzle
- obstacle
- fire extinguishing
- Prior art date
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Classifications
-
- A—HUMAN NECESSITIES
- A62—LIFE-SAVING; FIRE-FIGHTING
- A62C—FIRE-FIGHTING
- A62C35/00—Permanently-installed equipment
- A62C35/58—Pipe-line systems
- A62C35/68—Details, e.g. of pipes or valve systems
-
- A—HUMAN NECESSITIES
- A62—LIFE-SAVING; FIRE-FIGHTING
- A62C—FIRE-FIGHTING
- A62C31/00—Delivery of fire-extinguishing material
- A62C31/02—Nozzles specially adapted for fire-extinguishing
-
- A—HUMAN NECESSITIES
- A62—LIFE-SAVING; FIRE-FIGHTING
- A62C—FIRE-FIGHTING
- A62C99/00—Subject matter not provided for in other groups of this subclass
- A62C99/0009—Methods of extinguishing or preventing the spread of fire by cooling down or suffocating the flames
- A62C99/0072—Methods of extinguishing or preventing the spread of fire by cooling down or suffocating the flames using sprayed or atomised water
Definitions
- the present invention relates to a fire-extinguishing spray nozzle and a fire-extinguishing equipment, and more particularly to a fire-extinguishing spray nozzle and a fire-extinguishing equipment that can make a low-pressure fire-extinguishing liquid into a mist.
- Patent Document 1 discloses a nozzle head.
- This nozzle head is a nozzle head in which two or more nozzle chips are attached to the header body.
- This nozzle tip emits a fine mist of water in the same direction.
- the nozzle tip is attached so that the jet port protrudes 10 mm or more from the surface of the header body.
- the range of fog can be extended, the range covered by the fog can be expanded, and the number of nozzle heads installed can be reduced.
- Patent Document 2 discloses a fire extinguishing nozzle.
- This fire-extinguishing nozzle includes a fluid chamber.
- the fluid chamber has a liquid inlet, a gas inlet, and a fluid outlet.
- This fluid chamber is divided into a plurality of small chambers. These compartments have separate liquid inlets, gas inlets and fluid outlets.
- These chambers are equipped with fluid control devices. The fluid control device ejects the liquid introduced into the small chamber from the fluid outlet in a diffusion state.
- initial fire extinguishing can be performed in a wide range, and in the initial stage of fire occurrence, the time until spraying effective for initial fire extinguishing can be significantly shortened.
- Patent Document 3 discloses a liquid spray nozzle.
- This liquid spray nozzle has a dome-shaped recess and a cut groove that intersects the tip of the recess.
- the cut groove is provided so as to be shifted upward from the tube axis.
- the flying distance of the liquid can be extended even when mounted horizontally.
- Patent Document 4 discloses a sprinkler fire extinguishing pipe.
- the auxiliary pipe connected to the main water supply pipe is formed in a loop shape using a flexible synthetic resin pipe.
- a synthetic resin diversion header is interposed in series in the loop-shaped auxiliary pipe. Synthetic resin diversion headers have branch connections at multiple locations. The branch connection portion communicates with a flexible tube made of synthetic resin.
- the sprinkler fire extinguishing pipe disclosed in Patent Document 4 can be easily transported to the construction site.
- Patent Documents 1 to 3 have a problem that the pressure of the liquid supplied to radiate the mist has to be relatively high.
- the pressure of the liquid is about 8 MPa.
- the invention disclosed in Patent Document 4 has neither disclosure nor suggestion regarding radiating fog.
- the present invention has been made to solve the above-described problems, and an object of the present invention is to provide a fire-extinguishing spray nozzle and a fire-extinguishing equipment for making a low-pressure fire-extinguishing liquid into a mist.
- the fire-extinguishing spray nozzle 10 includes a main body 30 and an obstacle 36.
- the main body 30 has the emission ports 40 and 41 for the fire extinguishing liquid.
- the obstacle 36 is for causing the fire extinguishing liquid radiated from the radiation ports 40 and 41 to collide.
- the obstacle 36 is disposed in the radiation region 102 of the fire extinguishing liquid radiated from the radiation ports 40 and 41.
- the outer peripheral surface of the obstacle 36 is formed as a cone-shaped inclined surface 62.
- a liquid mist 74 is generated.
- the pressure of the fire extinguishing liquid radiated from the radiation ports 40 and 41 may be low.
- the fire-extinguishing spray nozzle 10 that makes the low-pressure fire-extinguishing liquid mist can be provided.
- the obstacle 36 described above has a groove 63 in addition to the inclined surface 62.
- the above-mentioned obstacle 36 is fixed to the main body 30 via the support portion 32.
- the above-described support portion 32 has a support column 52 at least at a position facing the obstacle 36, and a facing portion 56 of the support column 52 facing the obstacle 36 is formed in a tapered shape.
- the fire extinguishing equipment is equipped with any of the nozzles described above.
- the fire-extinguishing spray nozzle and fire-extinguishing equipment according to the present invention can make the low-pressure fire-extinguishing liquid into a mist.
- FIG. 1 is a schematic view showing a sprinkler fire extinguishing pipe of the fire extinguishing equipment according to the present embodiment.
- FIG. 2 is a perspective view of the fire-extinguishing spray nozzle 10 according to the present embodiment.
- FIG. 3 is a front view of the fire-extinguishing spray nozzle 10 according to the present embodiment.
- FIG. 4 shows the A arrow directional view of the fire-extinguishing spray nozzle 10 concerning this embodiment.
- FIG. 5 shows B sectional drawing of the spray nozzle 10 for fire extinguishing concerning this embodiment.
- FIG. 6 is a conceptual diagram illustrating the principle that the fire-extinguishing liquid radiated from the radiation port 40 becomes fog in the fire-extinguishing spray nozzle 10 according to the present embodiment.
- FIG. 7 is a first diagram illustrating the spray angle of the fire-extinguishing spray nozzle 10 and the spray amount just below the fire-extinguishing spray nozzle 10 according to the present embodiment.
- FIG. 8 is a second diagram showing the spray angle in the fire-extinguishing spray nozzle 10 and the spray amount just below the fire-extinguishing spray nozzle 10 according to the present embodiment.
- the spray amount just below the fire-extinguishing spray nozzle 10 is referred to as a “direct spray amount”.
- the sprinkler fire extinguishing pipe of the fire extinguishing equipment has a water diversion header 17.
- the diversion header 17 is an integrally molded body of synthetic resin.
- the diversion header 17 has a function of diverting the water flowing in from the straight joint 18 into a plurality of diversion pipes 20 and flowing out the remaining water after the diversion into the auxiliary pipe 16.
- the auxiliary pipe 16 connected to the main pipe 15 and arranged horizontally is formed in a loop shape.
- the loop shape of the auxiliary piping 16 may be a rectangle as shown in the figure or an annular shape.
- the auxiliary pipe 16 is a flexible synthetic resin pipe such as a polyethylene pipe.
- the diversion header 17 is connected in series to the loop-shaped auxiliary pipe 16 by being connected to the auxiliary pipe 16 via a straight joint 18.
- the straight joint 18 is made of synthetic resin.
- the water distribution tube 20 is formed of a synthetic resin such as polyethylene resin. Further, it is desirable that all of the water distribution pipes 20 are heat-sealed in advance at the branch connection portion at the factory prior to connecting the water diversion header 17 to the auxiliary pipe 16. Moreover, as the water distribution pipe 20, what the sealing plug part which is not shown in figure in the front-end
- ⁇ A flexible synthetic resin tube such as a polyethylene tube is used as the flexible tube.
- the connection between the water dividing pipe 20 and the flexible pipe can be performed using, for example, a synthetic resin straight joint.
- a synthetic resin pipe for example, a polyethylene pipe having a smooth inner surface can be used as the flexible pipe according to the present embodiment. By doing so, even if a large number of flexible pipes are connected to one diversion header 17, it becomes possible to supply a sufficient amount of discharged water to the fire-extinguishing spray nozzle 10 with a sufficient pressure. Since the flexible tube is light, there is an advantage that it is not necessary to be so conscious of the weight load caused by connecting the flexible tube.
- the fire-extinguishing spray nozzle 10 includes a main body 30, a support portion 32, and an obstacle 36.
- the main body 30 has a radiation port 40.
- a fire extinguishing liquid (water in this embodiment) supplied from a pump (not shown) is radiated from the radiation port 40.
- the fire extinguishing liquid radiated collides with the obstacle 36 and becomes a mist 74.
- the principle that the fire extinguishing liquid becomes the mist 74 will be described later.
- the support portion 32 includes a beam 50 and a support column 52.
- the beam 50 is a member to which the obstacle 36 is fixed.
- the column 52 is a member that is fixed to the main body 30 and supports the beam 50 so as to face each other with the obstacle 36 interposed therebetween. By being supported by the column 52, the beam 50 is a both-ends support beam.
- the facing portion 56 of the support column 52 facing the obstacle 36 is formed in a tapered shape that is pointed toward the obstacle 36.
- the configuration of the obstacle 36 will be described with reference to FIGS. 2 and 5.
- the obstacle 36 has a facing surface 60 and an inclined surface 62.
- the opposing surface 60 in the present embodiment is a plane that is orthogonal to the extension line of the central axis 100 of the radiation port 40 and faces the radiation port 40.
- the facing surface 60 is similar to the shape of the radiation port 40.
- the shape of the emission port 40 and the shape of the facing surface 60 are circular.
- the central axis of the facing surface 60 coincides with the central axis 100 of the radiation port 40.
- the diameter 202 of the facing surface 60 is 90% of the inner diameter 200 of the radiation port 40.
- the outer diameter of the joint portion 64 between the beam 50 and the inclined surface 62 is equal to the inner diameter of the radiation port 40. For this reason, the obstacle 36 is arranged in the radiation region 102.
- the radiation region 102 means a region through which the fire extinguishing liquid radiated from the radiation port 40 will pass.
- the radiation region 102 in the present embodiment is indicated by a two-dot chain line. It may be considered that the radiation region 102 includes a space defined by a cone having an extension line of the central axis 100 of the radiation port 40 as a rotation axis and a straight line passing through the edge of the radiation port 40 as a generating line.
- the inclined surface 62 is the outer peripheral surface of the obstacle 36 having a conical shape. More specifically, the shape of the obstacle 36 is a frustum shape. That is, it is the shape of the portion that remains after the top portion of the cone is cut off by a plane parallel to the bottom surface. Of course, the shape of the obstacle 36 may be a real cone shape.
- the fire extinguishing liquid 72 that has collided with the facing surface 60 also becomes mist 74 and scatters around.
- a part of the fire extinguishing liquid radiated from the radiation port 40 also collides with the inclined surface 62 of the obstacle 36 and is reflected.
- the fire extinguishing liquid 76 reflected from the inclined surface 62 also collides with the fire extinguishing liquid 70 that passes around the obstacle 36. Due to the collision, the fire extinguishing liquid 70 passing around the obstacle 36 becomes a mist 74 and is scattered around.
- the fire extinguishing liquid 76 reflected from the inclined surface 62 also becomes a mist 74 and scatters around.
- the facing portion 56 of the support column 52 that faces the obstacle 36 is formed in a tapered shape that is pointed toward the obstacle 36, the generated mist 74 is formed on the support column 52. It will flow along the side.
- the angle of the facing surface 60 with respect to the extended line of the central axis 100 does not necessarily have to be orthogonal. Even if they are not orthogonal, this angle only needs to satisfy the following requirements.
- the requirement is that a fire extinguishing liquid having a pressure required to generate the mist 74 is emitted from the radiation port 40, collides with the opposing surface 60, and is reflected around the obstacle 36. It is a requirement that it occurs at multiple points. The plurality of points are symmetric with respect to the extension line of the central axis 100.
- the fire-extinguishing spray nozzle 10 generates the mist 74 when the fire-extinguishing liquids radiated from the radiation port 40 collide with each other.
- the mist 74 generated in this way is heated by the flame and becomes water vapor.
- the volume of the water vapor is significantly larger than that of the original mist 74.
- the oxygen concentration in the air relatively decreases.
- an oxygen deficiency occurs, and it is difficult for the combustibles to burn in the oxygen deficiency state.
- the oil becomes difficult to burn.
- the mist 74 sprayed from the fire-extinguishing spray nozzle 10 spreads as widely and uniformly as possible.
- the fire-extinguishing spray nozzle 10 according to the present embodiment can sufficiently spray the mist 74 directly below it. This point will be described with reference to FIGS.
- FIG. 7 and 8 are views showing the influence of the ratio of the diameter of the facing surface 60 to the inner diameter of the radiation port 40 on the spray angle and the spray amount just below the fire-extinguishing spray nozzle 10.
- FIG. 7 shows a case where the pressure of the fire extinguishing liquid supplied to the fire-extinguishing spray nozzle 10 is 0.4 MPa.
- FIG. 8 shows the case where the pressure is 1.0 MPa.
- the diameter of the facing surface 60 is 90% of the inner diameter of the radiant port 40. Can be sufficiently supplied.
- a groove 63 may be provided on the inclined surface 62.
- FIG. 9 is a front view of the fire-extinguishing spray nozzle when the groove 63 is provided on the inclined surface 62. You may provide the roundness 65 in the boundary of the opposing surface 60 and the inclined surface 62.
- FIG. FIG. 10 is a front view of the fire-extinguishing spray nozzle when such roundness is provided.
- the ratio of the diameter of the facing surface 60 to the inner diameter of the radiation port 40 is not limited to “0.9”.
- FIG. 11 is a perspective view showing the form of a fire-extinguishing spray nozzle when the main body 30 has a triangular emission port 41 and the obstacle 36 has a triangular opposing surface 61.
- the central axis of the opposing surface 61 and the central axis of the radiation port 41 do not necessarily have to coincide with each other. Of course, they may match.
- the shape of the facing surface and the shape of the radiation port need not be similar.
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- Health & Medical Sciences (AREA)
- Public Health (AREA)
- Business, Economics & Management (AREA)
- Emergency Management (AREA)
- Nozzles (AREA)
- Fire-Extinguishing By Fire Departments, And Fire-Extinguishing Equipment And Control Thereof (AREA)
Abstract
Description
15 主配管
16 補助配管
17 分水用ヘッダ
18 ストレート型継手
20 分水管
30 本体
32 支持部
36 障害物
40,41 放射口
50 梁
52 支柱
56 対向部分
60,61 対向面
62 傾斜面
63 溝
64 接合部分
65 丸み
70,72,76 消火液
74 霧
100 中心軸
102 放射領域
200 内径
202 直径
204,208 幅
206,210 長さ
Claims (5)
- 消火液の放射口を有する本体と、この放射口から放射される消火液を衝突させる障害物とを備える消火用噴霧ノズルであって、
前記障害物は、前記放射口から放射される消火液の放射領域内に配置され、
前記障害物の外周面は、錐体状の傾斜面に形成されている、消火用噴霧ノズル。 - 前記障害物は、前記傾斜面に加え、溝を有する、請求項1に記載の消火用噴霧ノズル。
- 前記障害物が、支持部を介して前記本体に固定されている、請求項1に記載の消火用噴霧ノズル。
- 前記支持部には、少なくとも前記障害物と対向する位置に支柱を有し、この支柱の前記障害物と対向する対向部分が先細り状に形成されている、請求項3に記載の消火用噴霧ノズル。
- 請求項1~4のいずれかに記載された消火用噴霧ノズルを装備させた消火設備。
Priority Applications (6)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2010517573A JPWO2009153848A1 (ja) | 2008-06-16 | 2008-06-16 | 消火用噴霧ノズルおよび消火設備 |
KR1020107006676A KR101243481B1 (ko) | 2008-06-16 | 2008-06-16 | 소화용 분무 노즐 및 소화설비 |
EP08765636.9A EP2289601B1 (en) | 2008-06-16 | 2008-06-16 | Fire-extinguishing spray nozzle and fire-extinguishing equipment |
CN200880108813A CN101808696A (zh) | 2008-06-16 | 2008-06-16 | 灭火用喷雾喷嘴及灭火设备 |
PCT/JP2008/060953 WO2009153848A1 (ja) | 2008-06-16 | 2008-06-16 | 消火用噴霧ノズルおよび消火設備 |
US12/733,424 US20100181083A1 (en) | 2008-06-16 | 2008-06-16 | Fire-extinguishing spray nozzle and fire-extinguishing equipment |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PCT/JP2008/060953 WO2009153848A1 (ja) | 2008-06-16 | 2008-06-16 | 消火用噴霧ノズルおよび消火設備 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2009153848A1 true WO2009153848A1 (ja) | 2009-12-23 |
Family
ID=41433779
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2008/060953 WO2009153848A1 (ja) | 2008-06-16 | 2008-06-16 | 消火用噴霧ノズルおよび消火設備 |
Country Status (6)
Country | Link |
---|---|
US (1) | US20100181083A1 (ja) |
EP (1) | EP2289601B1 (ja) |
JP (1) | JPWO2009153848A1 (ja) |
KR (1) | KR101243481B1 (ja) |
CN (1) | CN101808696A (ja) |
WO (1) | WO2009153848A1 (ja) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP4927999B2 (ja) * | 2010-06-29 | 2012-05-09 | ヤマトプロテック株式会社 | 液体噴霧ノズルおよび液体噴霧システム |
JP2019217458A (ja) * | 2018-06-19 | 2019-12-26 | ヤマトプロテック株式会社 | 噴霧ヘッド、及びその噴霧ヘッドを含む噴霧設備 |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DK2696940T3 (da) | 2011-04-12 | 2020-06-15 | Prevent System As | En brandslukningsdyse, en fremgangsmåde til produktion af en sådan dyse, samt en fremgangsmåde til fremstilling af en spray af fine smådråber |
CN102284163B (zh) * | 2011-07-11 | 2013-06-12 | 苏州辰泰鸿业安全技术有限公司 | 闭式中低压细水雾喷头 |
CN108031032A (zh) * | 2017-12-07 | 2018-05-15 | 国网湖南省电力有限公司 | 一种电力小微空间用灭火系统 |
KR102007419B1 (ko) * | 2018-11-27 | 2019-08-05 | (주)창연 | 난반사형 리플렉터를 포함하는 무화 분무노즐 |
KR20190125235A (ko) | 2019-09-19 | 2019-11-06 | 거림소방(주) | 표준 모듈화된 스프링클러 소화 배관 및 이를 이용한 시공방법 |
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2008
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- 2008-06-16 CN CN200880108813A patent/CN101808696A/zh active Pending
- 2008-06-16 EP EP08765636.9A patent/EP2289601B1/en active Active
- 2008-06-16 WO PCT/JP2008/060953 patent/WO2009153848A1/ja active Application Filing
- 2008-06-16 KR KR1020107006676A patent/KR101243481B1/ko active IP Right Grant
- 2008-06-16 US US12/733,424 patent/US20100181083A1/en not_active Abandoned
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JPS5648288Y2 (ja) * | 1977-06-20 | 1981-11-11 | ||
JPH11514244A (ja) * | 1994-05-18 | 1999-12-07 | リュデッケ ヴェルナー | スプリンクラノズル |
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Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP4927999B2 (ja) * | 2010-06-29 | 2012-05-09 | ヤマトプロテック株式会社 | 液体噴霧ノズルおよび液体噴霧システム |
JP2019217458A (ja) * | 2018-06-19 | 2019-12-26 | ヤマトプロテック株式会社 | 噴霧ヘッド、及びその噴霧ヘッドを含む噴霧設備 |
JP7233677B2 (ja) | 2018-06-19 | 2023-03-07 | ヤマトプロテック株式会社 | 噴霧ヘッド、及びその噴霧ヘッドを含む噴霧設備 |
Also Published As
Publication number | Publication date |
---|---|
KR20100047903A (ko) | 2010-05-10 |
JPWO2009153848A1 (ja) | 2011-11-17 |
CN101808696A (zh) | 2010-08-18 |
US20100181083A1 (en) | 2010-07-22 |
EP2289601B1 (en) | 2016-11-02 |
EP2289601A4 (en) | 2015-02-18 |
KR101243481B1 (ko) | 2013-03-13 |
EP2289601A1 (en) | 2011-03-02 |
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