JP2007209579A - Fire extinguishing nozzle - Google Patents

Fire extinguishing nozzle Download PDF

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Publication number
JP2007209579A
JP2007209579A JP2006033439A JP2006033439A JP2007209579A JP 2007209579 A JP2007209579 A JP 2007209579A JP 2006033439 A JP2006033439 A JP 2006033439A JP 2006033439 A JP2006033439 A JP 2006033439A JP 2007209579 A JP2007209579 A JP 2007209579A
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Prior art keywords
frame
water
water discharge
extinguishing nozzle
fire extinguishing
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JP2006033439A
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JP4675795B2 (en
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Hirotaka Kameishi
博隆 亀石
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Nohmi Bosai Ltd
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Nohmi Bosai Ltd
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Abstract

<P>PROBLEM TO BE SOLVED: To uniform the water spray distribution of a fire extinguishing nozzle to be used for washing an insulator, extinguishing fire or the like. <P>SOLUTION: The fire extinguishing nozzle 10 having discharge holes 16 in a frame 14 includes spherical bodies 18 in the frame 14, which are moved in the frame 14 by a water stream so as to diffuse the water stream. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

この発明は、碍子の洗浄や消火等に用いる消火ノズルに関するものである。   The present invention relates to a fire extinguishing nozzle used for cleaning, fire extinguishing, and the like of insulators.

従来の消火ノズルは、図６に示すように、フレーム１の下部が断面半円状に形成され、該フレーム１には、多数の放水孔３が設けられている（例えば、特許文献１、２参照）。このノズルでは、放水孔３から放出される消火水は、棒状（断面円形状）となってに放出（棒状放水）される（特許文献１の図３、特許文献２の図1、参照）。   As shown in FIG. 6, in the conventional fire extinguishing nozzle, the lower part of the frame 1 is formed in a semicircular cross section, and the frame 1 is provided with a large number of water discharge holes 3 (for example, Patent Documents 1 and 2). reference). In this nozzle, the fire extinguishing water discharged from the water discharge hole 3 is discharged (bar-shaped water discharge) into a rod shape (circular cross section) (see FIG. 3 of Patent Document 1 and FIG. 1 of Patent Document 2).

特開２００５−２７９３５４号公報JP 2005-279354 A 実公昭５１−９１９９号公報Japanese Utility Model Publication No. 51-9199

従来例の消火ノズルは、デフレクタを固定するガイドロッドなどの障害物がないため、各方向に確実に棒状放水ができると共に、勢いのある力強い放水が可能である。しかし、その反面、放水孔同士から放出される放水流５の間に隙間（無水領域）７が生じ、該消火ノズルが消火水Ｗを散布すべき領域である、防護領域に対して均一に散水できない、という問題がある。   Since the fire extinguishing nozzle of the conventional example does not have an obstacle such as a guide rod for fixing the deflector, it can reliably discharge the rod in each direction and can perform powerful and powerful water discharge. However, on the other hand, a gap (anhydrous region) 7 is generated between the water discharge flows 5 discharged from the water discharge holes, and the fire-extinguishing nozzle is sprayed with the fire-extinguishing water W uniformly. There is a problem that it is not possible.

この発明は、上記事情に鑑み、散水分布を均一化することを目的とする。   In view of the above circumstances, an object of the present invention is to make the watering distribution uniform.

この発明は、フレームに放水孔が設けられた消火ノズルにおいて；前記フレーム内に、水流によって前記フレーム内を移動して、前記水流を拡散させる拡散体を設けたことを特徴とする。   The present invention is characterized in that in a fire-extinguishing nozzle having a water discharge hole in a frame; a diffuser that moves in the frame by a water flow and diffuses the water flow is provided in the frame.

この発明の拡散体は、前記放水孔よりも大きい球体、又は、円柱体であることを特徴とする。この発明のフレーム下部は、断面半円状に形成されていることを特徴とする。   The diffuser according to the present invention is characterized by being a sphere or a cylinder larger than the water discharge hole. The lower portion of the frame of the present invention is characterized by being formed in a semicircular cross section.

この発明は、前記フレーム内に、水流によって前記フレーム内を移動して、前記水流を拡散させる拡散体を設けたので、該拡散体は水の流れを受けて、フレーム内を移動し、放水孔を塞いだり、開いたりする。又、前記水は、拡散体に衝突して進行方向を変えられて拡散し、放水孔から放出される。そのため、放水孔から放出される水は、フレーム内に拡散体が存在しない場合（以下、「通常の場合」という）における放水流とは異なった流れを作り出すので、放水孔同士から放出される放流水の間の隙間を補って、散水分布を均一化させる。
また、拡散体をフレーム内に設けることで、放水圧の濃淡ができる。つまり、拡散体が移動して、ある放水孔を塞いでいると、その間、別の放水孔にかかる圧力が高まることになる。言い換えると、拡散体の移動によって放水孔の圧力は、時間経過に伴い変化することになるが、これを水圧の濃淡ということにする。この様に一時的に圧力が高まることにより、放水孔のゴミずまりを防止することができる。 According to the present invention, the diffuser that moves in the frame by the water flow and diffuses the water flow is provided in the frame, so that the diffuser receives the flow of water and moves in the frame, and the water discharge hole. Block or open. Further, the water collides with the diffuser, changes its traveling direction, diffuses, and is discharged from the water discharge hole. Therefore, the water released from the discharge holes creates a flow different from the discharge flow when there is no diffuser in the frame (hereinafter referred to as “normal case”). Complement the gaps between the water to make the watering distribution uniform.
Further, by providing the diffuser in the frame, the water discharge pressure can be shaded. In other words, when the diffuser moves and blocks a certain water discharge hole, the pressure applied to another water discharge hole increases during that time. In other words, the pressure of the water discharge hole changes with the passage of time due to the movement of the diffuser, and this is referred to as the density of the water pressure. As the pressure is temporarily increased in this way, it is possible to prevent dust from collecting in the water discharge holes.

従来例の問題点を解決するには、消火ノズルを回転させる駆動機構を設け,前記消火ノズルを回転させることが考えられる。
しかし、この方法では、設備コストが嵩む上、スプリンクラ消火設備は、通常時（監視時）には、稼動していないため、前記駆動機構の駆動部の品質保証をすることは困難である。従って、この方法は、好適なものとはいえない。 In order to solve the problems of the conventional example, it is conceivable to provide a drive mechanism for rotating the fire extinguishing nozzle and rotate the fire extinguishing nozzle.
However, in this method, the equipment cost increases, and the sprinkler fire extinguishing equipment is not in operation at normal time (monitoring time), so it is difficult to guarantee the quality of the drive unit of the drive mechanism. Therefore, this method is not preferable.

本件発明者は、放水孔同士から放出される放水流の間に、前記隙間（無水領域）が生じても、その隙間に向かって水が飛散するようにすれば、前記問題が解決する、と考え、研究実験を重ねた。その結果、放水孔を有するフレーム内に、水流によって前記フレーム内を移動して、前記水流を拡散させる拡散体を内蔵させれば良いことが分かった。   Even if the gap (anhydrous region) occurs between the water discharge flows discharged from the water discharge holes, the inventors of the present invention solve the above problem if water is scattered toward the gap. I thought and repeated research experiments. As a result, it has been found that a diffuser that moves in the frame by a water flow and diffuses the water flow may be incorporated in the frame having the water discharge holes.

この様にすると、水は、拡散体に衝突して進行方向を変えられて拡散するとともに、該拡散体の移動により放水孔が塞がれたり、開いたりする。そのため、放水孔から放出される水は、前記通常の場合の水流とは異なる流れとなり、隙間にも水が散布されるので、前記消火ノズルの防護領域全体に亘り均一な散水を行うことができる。   If it does in this way, while a water will collide with a diffuser and advancing direction will be changed and water will diffuse, a water discharge hole will be block | closed or opened by the movement of this diffuser. Therefore, the water discharged from the water discharge hole becomes a flow different from the water flow in the normal case, and the water is dispersed in the gap, so that uniform watering can be performed over the entire protection area of the fire-extinguishing nozzle. .

この発明の実施例を図１〜図５により説明する。
消火ノズル１０は、図示しない消火配管に連結されている。この消火ノズル１０は、ヘッド本体１２と、該ヘッド本体１２に螺着されるフレーム１４とを備えている。フレーム１４の上部側１４ａは直筒状に形成され、その下部側１４ｂは断面半円状に形成されている。前記フレーム１４には、多数の放水孔１６が形成されているが、その大きさ、形状、個数、位置等は必要に応じて適宜選択される。 An embodiment of the present invention will be described with reference to FIGS.
The fire extinguishing nozzle 10 is connected to a fire extinguishing pipe (not shown). The fire extinguishing nozzle 10 includes a head body 12 and a frame 14 that is screwed to the head body 12. The upper side 14a of the frame 14 is formed in a straight cylinder shape, and the lower side 14b is formed in a semicircular cross section. A large number of water discharge holes 16 are formed in the frame 14, and the size, shape, number, position, etc. thereof are appropriately selected as necessary.

フレーム１４内には、複数の拡散体１８が移動自在に挿入されている。この拡散体１８は、フレーム１４内の水流によって、該フレーム１４内を移動して前記水流を拡散させるものである。この拡散体として、前記放水孔１６の径より大きな径の球体、例えば、パチンコ玉等が用いられるが、その径の大きさや個数は必要に応じて適宜選択される。
なお、個数は、１個でも良いが、１個であると、球体１８が上方からの水流により押圧されると動きにくくなる恐れがあるので、複数個、例えば、４〜６個を用いることが好ましい。
又、拡散体は、ヘッド本体の放水口の内径より小さく、例えば、放水口の内径の半分以下として水流により動きやすくする。 A plurality of diffusers 18 are movably inserted into the frame 14. The diffuser 18 moves in the frame 14 and diffuses the water flow by the water flow in the frame 14. As this diffuser, a sphere having a diameter larger than the diameter of the water discharge hole 16, such as a pachinko ball, is used, and the size and number of the diameter are appropriately selected as necessary.
The number may be one, but if it is one, there is a possibility that the sphere 18 may be difficult to move when pressed by a water flow from above, so a plurality of, for example, 4 to 6, may be used. preferable.
Further, the diffuser is smaller than the inner diameter of the water outlet of the head body, for example, less than half of the inner diameter of the water outlet, and is easily moved by the water flow.

次に、本実施例の作動について説明する。
まず、図2において、フレーム１４内には、球体１４の下部側は断面半円形状に形成されていることから、図2の両端側にある球体１８には、フレーム１４の中央下部に向かおうとする力が作用しており、不安定な状態にある。
この様な状態において、消火ノズル１０に水が供給されると、該水Ｗは、ヘッド本体１２からフレーム１４内に放出される。そうすると、球体１８は、水圧を受け、図４に示す位置１８Ａから図５に示す位置１８Ｂに移動する。
このとき、球体18に上方にかかる水圧だけでなく、断面半円形状のフレームの内壁面に沿って流れる水流が不安定な状態にある球体18にあたって球体18を動かそうとする。 Next, the operation of this embodiment will be described.
First, in FIG. 2, the lower side of the sphere 14 is formed in a semicircular cross section in the frame 14, so that the sphere 18 on both ends in FIG. 2 faces the lower center of the frame 14. The force to be applied acts and is in an unstable state.
In such a state, when water is supplied to the fire-extinguishing nozzle 10, the water W is discharged from the head body 12 into the frame 14. Then, the sphere 18 receives water pressure and moves from the position 18A shown in FIG. 4 to the position 18B shown in FIG.
At this time, not only the water pressure applied to the sphere 18 upward, but also the sphere 18 tries to move on the sphere 18 in which the water flow flowing along the inner wall surface of the semicircular frame is unstable.

前記球体１８が当接するフレーム１４の下部１４ｂは、断面半円形状なので、該球体１８は、フレーム１４内を上昇下降しながらスムーズに移動する。   Since the lower portion 14b of the frame 14 with which the sphere 18 abuts is semicircular in cross section, the sphere 18 moves smoothly while moving up and down in the frame 14.

そのため、放水孔１６は、前記球体１８より塞がれたり、開けられたりする。 又、前記球体１８は、複数個設けられているため、移動中に隣接する球体１８に衝突するので、該球体１８は水Ｗの力の他に、隣接する球体１８の衝撃力も受ける。そのため、より転がりやすくなるので、放水孔１６の開閉がより頻繁に行われる。   Therefore, the water discharge hole 16 is blocked or opened by the sphere 18. In addition, since a plurality of the spheres 18 are provided, the spheres 18 collide with the adjacent spheres 18 during movement, so that the spheres 18 receive the impact force of the adjacent spheres 18 in addition to the force of the water W. Therefore, since it becomes easier to roll, the water discharge hole 16 is opened and closed more frequently.

この際、球体１８に衝突した水Ｗは、進行方向を変えられて拡散するので、前記通常の場合における放水流Ｒとは異なる流れ２０を作り出す。この流れ２０が放水孔１６同士から出される放水流２２の間の隙間２４を補うので、散水分布を均一化させることができる。   At this time, the water W colliding with the sphere 18 is diffused with its traveling direction changed, so that a flow 20 different from the water discharge flow R in the normal case is created. Since this flow 20 compensates for the gap 24 between the water discharge flows 22 emitted from the water discharge holes 16, the water spray distribution can be made uniform.

この発明の実施例は、上記に限定されるものではなく、例えば、次のようにしても良い。
（１）拡散体として、球体の代わりに、円柱体を用いること。
（２）消火ノズルの上部に、水流を旋回させるためのワーラーを設け、球体を動きやすくすること。
（３）消火ノズルとして、マルチ型スプリンクラヘッドの様に、フレームに多数のスリット（放水孔）を形成した消火ノズルを用いること。 The embodiment of the present invention is not limited to the above, and may be as follows, for example.
(1) Use a cylindrical body as a diffuser instead of a sphere.
(2) A waterer for swirling the water flow is provided on the upper part of the fire-extinguishing nozzle to facilitate movement of the sphere.
(3) Use a fire-extinguishing nozzle in which a large number of slits (water discharge holes) are formed in the frame, such as a multi-type sprinkler head.

本発明の実施例を示す正面図である。It is a front view which shows the Example of this invention. 図１のII−II線断面図である。It is the II-II sectional view taken on the line of FIG. 図１の底面図である。It is a bottom view of FIG. 使用状態を示す要部拡大図である。It is a principal part enlarged view which shows a use condition. 図４と異なる使用状態を示す要部拡大図である。It is a principal part enlarged view which shows the use condition different from FIG. 従来例を示す要部拡大図である。It is a principal part enlarged view which shows a prior art example.

符号の説明Explanation of symbols

１０ 消火ノズル
１２ ヘッド本体
１４ フレーム
１４ａ 上部側
１４ｂ 下部側
１６ 放水孔
１８ 球体
２２ 放水流
２４ 隙間 DESCRIPTION OF SYMBOLS 10 Fire extinguishing nozzle 12 Head main body 14 Frame 14a Upper side 14b Lower side 16 Water discharge hole 18 Sphere 22 Water discharge flow 24 Crevice

Claims (3)

フレームに放水孔が設けられた消火ノズルにおいて；
前記フレーム内に、水流によって前記フレーム内を移動して、前記水流を拡散させる拡散体を設けたことを特徴とする消火ノズル。 In fire-extinguishing nozzles with water discharge holes in the frame;
A fire-extinguishing nozzle, characterized in that a diffuser that moves in the frame by a water flow and diffuses the water flow is provided in the frame. 前記拡散体は、前記放水孔よりも大きい球体、又は、円柱体であることを特徴とする請求項１記載の消火ノズル。   The fire extinguishing nozzle according to claim 1, wherein the diffuser is a sphere or a cylinder larger than the water discharge hole. 前記フレーム下部は、断面半円状に形成されていることを特徴とする請求項１、又は、２記載の消火ノズル。   The fire extinguishing nozzle according to claim 1, wherein the lower portion of the frame is formed in a semicircular cross section.
JP2006033439A 2006-02-10 2006-02-10 Fire extinguishing nozzle Expired - Fee Related JP4675795B2 (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103962243A (en) * 2014-05-08 2014-08-06 上海龙净环保科技工程有限公司 Spiral spray nozzle applicable to wet electric precipitator and arrangement way of spiral spray nozzle
CN114602091A (en) * 2022-03-22 2022-06-10 江苏日明消防设备股份有限公司 Nozzle structure of fire extinguisher for deep diving work mother ship

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS519199Y1 (en) * 1969-04-23 1976-03-11
JPS5441737U (en) * 1977-08-26 1979-03-20
JPS60241461A (en) * 1984-05-16 1985-11-30 株式会社　洋光 Equal jet nozzle for fire fighting
JPS6171261U (en) * 1984-10-16 1986-05-15
JPS63111954A (en) * 1986-10-31 1988-05-17 デビツド・エル・ビ−ツ Spray nozzle
JPH0929141A (en) * 1995-07-21 1997-02-04 Nohmi Bosai Ltd Non-stage variable spray nozzle
JPH11300236A (en) * 1998-04-20 1999-11-02 Kiyoshi Iwashima Shower head
JP2005279354A (en) * 2004-03-29 2005-10-13 Hakko Co Ltd Diffusion nozzle

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS519199Y1 (en) * 1969-04-23 1976-03-11
JPS5441737U (en) * 1977-08-26 1979-03-20
JPS60241461A (en) * 1984-05-16 1985-11-30 株式会社　洋光 Equal jet nozzle for fire fighting
JPS6171261U (en) * 1984-10-16 1986-05-15
JPS63111954A (en) * 1986-10-31 1988-05-17 デビツド・エル・ビ−ツ Spray nozzle
JPH0929141A (en) * 1995-07-21 1997-02-04 Nohmi Bosai Ltd Non-stage variable spray nozzle
JPH11300236A (en) * 1998-04-20 1999-11-02 Kiyoshi Iwashima Shower head
JP2005279354A (en) * 2004-03-29 2005-10-13 Hakko Co Ltd Diffusion nozzle

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103962243A (en) * 2014-05-08 2014-08-06 上海龙净环保科技工程有限公司 Spiral spray nozzle applicable to wet electric precipitator and arrangement way of spiral spray nozzle
CN114602091A (en) * 2022-03-22 2022-06-10 江苏日明消防设备股份有限公司 Nozzle structure of fire extinguisher for deep diving work mother ship
CN114602091B (en) * 2022-03-22 2022-10-21 江苏日明消防设备股份有限公司 Nozzle structure of fire extinguisher for deep diving work mother ship

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