【０００１】[0001]
【発明の属する技術分野】本発明は火災を消火する消火
ノズル関するものである。TECHNICAL FIELD The present invention relates to a fire extinguishing nozzle for extinguishing a fire.
【０００２】[0002]
【従来の技術】図６〜図８は従来の消火ノズルで、図６
は正面図、図７は図１のＡ−Ａ線断面図、図８は図６の
Ｂ−Ｂ線断面図で、これらの図面を用いて従来技術を説
明する。6 to 8 show a conventional fire extinguishing nozzle.
Is a front view, FIG. 7 is a sectional view taken along the line AA of FIG. 1, and FIG. 8 is a sectional view taken along the line BB of FIG. 6. The conventional technique will be described with reference to these drawings.
【０００３】２は図示しない給水管と接続されるねじ部
で、このねじ部の上端部には、外周に着脱工具の係止部
が形成されたフランジ部３が設けられる。このフランジ
部２の上端には更に筒体４が、ねじ部２及びフランジ部
３と共に一体に形成され、消火ノズル１を構成してい
る。Reference numeral 2 denotes a threaded portion connected to a water supply pipe (not shown), and a flange portion 3 having an engaging portion for a detachable tool formed on the outer periphery is provided at the upper end portion of the threaded portion. A cylindrical body 4 is further integrally formed on the upper end of the flange portion 2 together with the screw portion 2 and the flange portion 3 to form the fire extinguishing nozzle 1.
【０００４】ねじ部２及びフランジ部３の内部には、消
火剤が通る円筒状の流路５が形成され、また筒体４の内
部には、先端の放水口７に向かう程、円筒状から偏平
（細長い楕円状）になっていく断面略扇型の流路６が形
成される。このようにして筒体４の先端には、一辺が他
方の辺よりも長くなるように形成された略長孔又は略長
方形状の、消火剤を放出するための放水口７が設けられ
る。A cylindrical flow path 5 through which the fire extinguishing agent passes is formed inside the screw portion 2 and the flange portion 3, and inside the cylindrical body 4, the cylindrical shape is changed from the cylindrical shape toward the water discharge port 7 at the tip. The flow path 6 having a substantially fan-shaped cross section is formed that becomes flat (elongate elliptical shape). In this manner, at the tip of the cylindrical body 4, a water discharge port 7 for discharging the fire extinguishing agent, which has a substantially long hole or a substantially rectangular shape formed so that one side is longer than the other side, is provided.
【０００５】このような消火ノズル１は例えばビル等の
側壁に、近くで発生した火災による延焼を防止するため
の水幕を形成するドレンチャー設備のノズルとして設け
られる他、トンネル又はアトリウムや展示場などの大空
間に設置される場合がある。この場合、消火ノズル１は
防護区域の大きさや形状にあわせて、放水する際に死角
領域が発生しないように考慮されて取り付けられる。Such a fire-extinguishing nozzle 1 is provided, for example, as a nozzle of a drainage facility for forming a water curtain on the side wall of a building or the like to prevent the spread of fire due to a nearby fire, a tunnel, an atrium, or an exhibition hall. It may be installed in a large space such as. In this case, the fire-extinguishing nozzle 1 is attached according to the size and shape of the protected area so as not to generate a blind spot area when discharging water.
【０００６】ここで、この消火ノズル１を上記大空間な
どの側壁に取り付けて放水した場合の放水分布を図９に
示す。なお取付高さは１０数メートル、そして水平軸に
対して２６°程度上方に傾け、また放水口７の長辺側が
床面と平行になるようにして側壁に取り付けた。放水口
７が長孔または長方形状だと放水口７から放水される水
は扇状に広がりながら、一定の広がりをもって放物線状
に落下して放水される。消火ノズル１を１個単独で使用
すると、射程距離は約３〜１６ｍ、散水幅が約２〜３ｍ
となり、図の実線で示すような放水パターンが得られ
た。なお実線で囲まれた部分の外側にも、わずかだが放
水される。FIG. 9 shows the water discharge distribution when the fire extinguishing nozzle 1 is attached to the side wall of the large space or the like to discharge water. The mounting height was 10 meters or more, and it was tilted upward by about 26 ° with respect to the horizontal axis, and was mounted on the side wall so that the long side of the water discharge port 7 was parallel to the floor surface. When the water discharge port 7 is a long hole or a rectangular shape, the water discharged from the water discharge port 7 spreads in a fan shape and drops in a parabolic shape with a certain spread and is discharged. When using the fire extinguisher nozzle 1 alone, the range is about 3 to 16 m, and the sprinkling width is about 2 to 3 m.
The water discharge pattern shown by the solid line in the figure was obtained. A small amount of water is also released outside the area surrounded by the solid line.
【０００７】[0007]
【発明が解決しようとする課題】消火ノズルから消火剤
として消火水を放出する場合、放水口７から出される水
は噴霧状、つまり小さい粒状となっているため気流の影
響を受けやすく、放水する際に気流が発生していると、
この消火水が気流に流されて左右に振られ、放水すべき
箇所に放水することが出来なくなってしまう。When the fire-extinguishing water is discharged from the fire-extinguishing nozzle as a fire extinguishing agent, the water discharged from the water discharge port 7 is in the form of a spray, that is, in the form of small particles, and is easily affected by the air flow, and is discharged. When an airflow is generated,
This fire extinguishing water is swept to the left and right by the air current, and it becomes impossible to discharge water to the place where water should be discharged.
【０００８】なおもう少し詳しく説明すると、同じ外周
の長さを有する放水口であれば、その放水口の形状を円
形にする程、面積は大きくなり、放水量も大きくなる
が、放水口の形状が細長い長方形状だと逆に放水量は小
さくなってしまうので、余計に気流の影響を受けやす
い。Explaining in a little more detail, if the water outlet has the same outer circumference length, the more the shape of the water outlet becomes circular, the larger the area and the amount of water discharged become, but the shape of the water outlet becomes larger. On the contrary, if it is a long and narrow rectangle, the water discharge will be small, so it is more susceptible to the air flow.
【０００９】また消火ノズルからの放水流は外側ほど空
気抵抗による影響を受けやすい。このため図９のよう
に、中央程射程距離が延び、外側程射程距離が延びず、
放水パターンは先端が半楕円状、つまり先細りとなって
しまう。よって消火ノズルから離れた地点程、中心から
ずれた外側の散水量が減ってしまい、所定の散水幅が得
られなくなる。そこで本発明は空気抵抗による影響を受
けにくい、また先端まで所定の散水幅を有する消火ノズ
ルを得るこを目的とする。Further, the flow of water discharged from the fire extinguishing nozzle is more likely to be affected by air resistance as it goes outward. Therefore, as shown in FIG. 9, the central range has a longer range distance, and the outer side has a smaller range range.
The tip of the water discharge pattern is semi-elliptical, that is, it is tapered. Therefore, the farther the point is from the fire extinguishing nozzle, the smaller the amount of water sprayed outside the center, and the predetermined water spray width cannot be obtained. Therefore, an object of the present invention is to obtain a fire extinguishing nozzle that is not easily affected by air resistance and has a predetermined water spray width up to the tip.
【００１０】[0010]
【課題を解決するための手段】本発明は以上の課題を解
決するためになされたもので、内部に消火剤が通る流路
が形成され、先端に形成された放水口から該消火剤を放
出する消火ノズルにおいて、前記放水口を略長孔または
略長方形状に形成し、該放水口の中央部に、放水口の短
辺側の径よりも大きい大径孔を設けたことを特徴とする
ものである。SUMMARY OF THE INVENTION The present invention has been made to solve the above problems, and a flow passage through which a fire extinguishing agent passes is formed inside, and the fire extinguishing agent is discharged from a water discharge port formed at the tip. In the fire extinguisher nozzle, the water discharge port is formed in a substantially long hole or a substantially rectangular shape, and a large diameter hole larger than a diameter of a short side of the water discharge port is provided in a central portion of the water discharge port. It is a thing.
【００１１】また放水口の両端部に、放水口の短辺側の
径よりも大きい大径孔を設けたことを特徴とするもので
ある。Further, it is characterized in that large-diameter holes having a diameter larger than the diameter of the short side of the water discharge port are provided at both ends of the water discharge port.
【００１２】[0012]
実施形態１ 本発明の実施形態を図面を用いて以下に説明するが、従
来技術と同じ部分には、これと同じ符号を付けて説明を
省略する。図１は本発明の第１の実施形態の正面図、図
２は図１のＣ−Ｃ線断面図である。Embodiment 1 An embodiment of the present invention will be described below with reference to the drawings. However, the same parts as those of the prior art will be designated by the same reference numerals and description thereof will be omitted. FIG. 1 is a front view of the first embodiment of the present invention, and FIG. 2 is a sectional view taken along line CC of FIG.
【００１３】１１は放水口７の中央部に設けられた、例
えば円状の大径孔であり、その円の内径は放水口７の短
辺側７Ａの径よりも大きくしてある。大径孔１１は、図
２に示すように筒体４の内周面を、放水口７の中央部の
端縁から放水軸Ｘ上に沿って、くり抜いた溝１２より形
成される。Reference numeral 11 denotes a circular large-diameter hole provided in the central portion of the water discharge port 7, and the inner diameter of the circle is made larger than the diameter of the short side 7A of the water discharge port 7. As shown in FIG. 2, the large-diameter hole 11 is formed by a hollowed groove 12 on the inner peripheral surface of the cylindrical body 4 along the water discharge axis X from the end edge of the central portion of the water discharge port 7.
【００１４】このように放水口７の中央部に大径孔１１
を設けることで、中央部の開口が一番大きくなるので、
放水口７から放水される放水量は他の部分よりも大きく
なる。As described above, the large diameter hole 11 is formed at the center of the water discharge port 7.
By providing, the opening in the center becomes the largest,
The amount of water discharged from the water discharge port 7 is larger than that of other portions.
【００１５】この消火ノズル１０を例えばトンネルのよ
うな気流の発生し易い場所の側壁に従来例と同様な条件
で取付けた場合について説明する。図示しない消火設備
の元弁を開き、消火ノズル１０に加圧された消火水が圧
送されると、流路５、６を通って放水口７から消火水は
放出され、放水流は扇状に広がりながら落下する。A case will be described in which the fire extinguishing nozzle 10 is attached to the side wall of a place where air flow is easily generated, such as a tunnel, under the same conditions as in the conventional example. When the main valve of the fire extinguishing equipment (not shown) is opened and the pressurized fire extinguishing water is pumped to the fire extinguishing nozzle 10, the fire extinguishing water is discharged from the water discharge port 7 through the flow paths 5 and 6, and the water discharge flow spreads like a fan. While falling.
【００１６】この際、放水される放水流は、放水口７の
中央部程放水量が大きく、勢いよく放水される。このた
め放水口７の端部から放水される消火水は、中央から放
水される消火水に引きつけられて、言い換えれば、放水
流全体が中心方向に収束して放水されることになるとと
もに放水流全体の射程距離も従来の消火ノズルに比べ向
上する。At this time, the amount of water discharged is larger at the central portion of the water discharge port 7 and is discharged vigorously. For this reason, the fire extinguishing water discharged from the end of the water discharge port 7 is attracted to the fire extinguishing water discharged from the center, in other words, the entire discharge water is converged in the central direction and discharged. The overall range is also improved compared to conventional fire extinguishing nozzles.
【００１７】このように放水口７からの放水流の中心に
放水量の大きい流れを作ることで、放水流の直進性が増
し、放水してる際に気流が発生しても、放水流が気流に
よって左右に振られりすることはなく、散水分布が乱れ
ることはない。また中央の開口部を僅かに大きく形成す
るだけなので、放水分布は従来のものとそれ程変わら
ず、一定の広がりをもったまま放水できる。By thus forming a flow with a large discharge amount at the center of the discharge flow from the discharge port 7, the straightness of the discharge flow is increased, and even if an air flow is generated during water discharge, the discharge flow is the air flow. It will not be swung to the left or right, and the water distribution will not be disturbed. Moreover, since the central opening is formed slightly larger, the distribution of water discharge is not so different from the conventional one, and water can be discharged with a certain spread.
【００１８】実施形態２ 図３は本発明の第２の実施形態の正面図、図４は図７の
Ｄ−Ｄ線断面図である。２１は放水口７の両端部に設け
られた、例えば円状の大径孔であり、その円の内径は放
水口７の短辺側の径７Ａよりも大きくしてある。大径孔
２１は、図４に示すように筒体４の内周面を、放水口７
の端部の端縁から放水軸Ｘ上に向かって、くり抜いた溝
２２より形成される。Embodiment 2 FIG. 3 is a front view of a second embodiment of the present invention, and FIG. 4 is a sectional view taken along the line DD of FIG. Reference numeral 21 denotes, for example, a circular large-diameter hole provided at both ends of the water outlet 7, and the inner diameter of the circle is larger than the diameter 7A on the short side of the water outlet 7. As shown in FIG. 4, the large-diameter holes 21 are formed on the inner peripheral surface of the cylindrical body 4 by
It is formed by a groove 22 that is cut out from the edge of the end portion toward the water discharge axis X.
【００１９】このように放水口７の両端部に大径孔２１
を設けることで、両端部の開口が一番大きくなるので、
放水口７から放水される放水量は他の部分よりも大きく
なり、またそこからの射程距離も伸びる。As described above, the large diameter holes 21 are formed at both ends of the water discharge port 7.
By providing, the opening at both ends will be the largest,
The amount of water discharged from the water discharge port 7 becomes larger than that of other portions, and the range distance from that portion also increases.
【００２０】この消火ノズル２０より放水を行うと、放
水口７から放出された放水流は扇状に広がりながら落下
する。この時、放水流の外側部分は空気抵抗の影響を一
番受けることになる。しかし放水口７の両端部に大径孔
２１を設けて、放水口７の両端部程放水量を大きく、ま
た勢いよく放水されるようにしてあるので、放水流の外
側部分は空気抵抗にうちかって放水されることになる。
このため、図５に示すように、その放水パターンは従来
のように先端が先細りになることなく、先端まで所定の
散水幅をもった略四角形状の散水パターンを得ることが
できる。When water is discharged from the fire extinguishing nozzle 20, the water discharged from the water discharge port 7 falls while spreading in a fan shape. At this time, the outer part of the discharge flow is most affected by air resistance. However, since large-diameter holes 21 are provided at both ends of the water discharge port 7, the amount of water discharged is larger toward both ends of the water discharge port 7 and the water is vigorously discharged. It will be discharged once.
Therefore, as shown in FIG. 5, the water discharge pattern does not have a tapered tip as in the conventional case, and it is possible to obtain a substantially rectangular water spray pattern having a predetermined water spray width up to the tip.
【００２１】以上の実施形態１、２においては、大径孔
の形状を円形としたが、この形状は放水口の短辺側の径
よりも大きく、放水量がその周辺部分よりも大きくなる
ようにしてあれば、その形状な何でもよい。また大径孔
を形成するために筒体の内周面に設けられる溝の長さは
特に限定されるものではない。なお消火剤として水を一
例にあげたが、ガス又は粉末の消火剤を使用してもよ
い。また１つの放水口の中央部と両端部にそれぞれ大径
孔を設けるようにしてもよい。またねじ部やフランジ部
及び筒体を別体で構成するようにしてもよい。In Embodiments 1 and 2 above, the shape of the large-diameter hole is circular, but this shape is larger than the diameter on the short side of the water outlet so that the amount of water discharged is larger than the surrounding area. If it is, any shape can be used. Further, the length of the groove provided on the inner peripheral surface of the cylindrical body for forming the large diameter hole is not particularly limited. Although water is given as an example of the extinguishant, a gas or powder extinguishant may be used. Moreover, you may make it provide a large diameter hole in the center part and both ends of one water discharge outlet, respectively. Further, the screw portion, the flange portion and the tubular body may be configured separately.
【００２２】[0022]
【発明の効果】本発明の請求項１の構成によれば、放水
口から放出される放水流は中央部（放水軸）程放水量が
大きくなるようにしてある。このため放水流は中央に収
束するように放水され、放水してる際に気流が発生して
も、その影響を受けて横揺れすることはなく、所定の場
所に放水することができる。According to the structure of claim 1 of the present invention, the amount of water discharged from the water discharge port is increased toward the central portion (water discharge axis). Therefore, the discharged water is discharged so as to converge in the center, and even if an airflow is generated while discharging the water, it is not affected by the influence of the airflow and can be discharged to a predetermined place.
【００２３】また本発明の請求項２の構成によれば、放
水口から放出される放水流は両端部程放水量が大きくな
るようにしてある。このため放水流は空気抵抗の影響を
受けにくく、散水パターンが先細りになることはない。According to the second aspect of the present invention, the amount of water discharged from the water discharge port is increased toward both ends. For this reason, the discharge flow is unlikely to be affected by air resistance, and the spray pattern does not taper.
【図１】本発明の実施形態１の消火ノズルの正面図であ
る。FIG. 1 is a front view of a fire extinguishing nozzle according to a first embodiment of the present invention.
【図２】図１のＣ−Ｃ線断面図である。FIG. 2 is a sectional view taken along line CC of FIG.
【図３】本発明の実施形態２の消火ノズルの正面図であ
る。FIG. 3 is a front view of a fire extinguishing nozzle according to a second embodiment of the present invention.
【図４】図３のＤ−Ｄ線断面図である。FIG. 4 is a sectional view taken along line DD of FIG. 3;
【図５】本発明の実施形態２の消火ノズルの散水パター
ンを示す図である。FIG. 5 is a diagram showing a watering pattern of a fire extinguishing nozzle according to a second embodiment of the present invention.
【図６】従来例の消火ノズルの正面図である。FIG. 6 is a front view of a conventional fire extinguishing nozzle.
【図７】図６のＡ−Ａ線断面図である。FIG. 7 is a sectional view taken along line AA of FIG. 6;
【図８】図６のＢ−Ｂ線断面図である。8 is a cross-sectional view taken along the line BB of FIG.
【図９】従来例の消火ノズルの散水パターンを示す図で
ある。FIG. 9 is a view showing a watering pattern of a conventional fire extinguishing nozzle.
１ 消火ノズル、２ ねじ部、３ フランジ部、４ 筒
体、５ 流路、６ 流路、７ 放水口、１０ 消火ノズ
ル、１１ 大径孔、１２ 溝、２０ 消火ノズル、２１
大径孔、２２ 溝、1 Fire Extinguishing Nozzle, 2 Screw Part, 3 Flange Part, 4 Cylindrical Body, 5 Channel, 6 Channel, 7 Water Outlet, 10 Fire Extinguishing Nozzle, 11 Large Diameter Hole, 12 Groove, 20 Fire Extinguishing Nozzle, 21
Large hole, 22 grooves,
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP28271895AJPH09122537A (en) | 1995-10-31 | 1995-10-31 | Fire extinguishing nozzle |
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP28271895AJPH09122537A (en) | 1995-10-31 | 1995-10-31 | Fire extinguishing nozzle |
| Publication Number | Publication Date |
|---|---|
| JPH09122537Atrue JPH09122537A (en) | 1997-05-13 |
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP28271895APendingJPH09122537A (en) | 1995-10-31 | 1995-10-31 | Fire extinguishing nozzle |
| Country | Link |
|---|---|
| JP (1) | JPH09122537A (en) |
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| JP2005066327A (en)* | 2003-08-04 | 2005-03-17 | Nobuhiko Igarashi | Reaction reducing apparatus |
| JP2010502409A (en)* | 2006-09-11 | 2010-01-28 | ビーアールケイ ブランズ インコーポレイテッド | Liquid wet chemical fire extinguishing spray |
| US7878419B2 (en) | 2006-09-19 | 2011-02-01 | Sta-Rite Industries, Llc | Spray head with covers |
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| JP2011189442A (en)* | 2010-03-13 | 2011-09-29 | Tokyo Univ Of Agriculture & Technology | Nozzle for electrochemical machining, electrochemical machining device and electrochemical machining method |
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| EP3610925A1 (en)* | 2018-08-14 | 2020-02-19 | Kidde Technologies, Inc. | Fire extinguishing agent nozzle structure |
| KR20220045333A (en)* | 2020-10-05 | 2022-04-12 | 권혁진 | Nozzle structure of the fire extinguisher |
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005066327A (en)* | 2003-08-04 | 2005-03-17 | Nobuhiko Igarashi | Reaction reducing apparatus |
| JP2010502409A (en)* | 2006-09-11 | 2010-01-28 | ビーアールケイ ブランズ インコーポレイテッド | Liquid wet chemical fire extinguishing spray |
| US7878419B2 (en) | 2006-09-19 | 2011-02-01 | Sta-Rite Industries, Llc | Spray head with covers |
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| A977 | Report on retrieval | Free format text:JAPANESE INTERMEDIATE CODE: A971007 Effective date:20040817 | |
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