JPH0521588B2 - - Google Patents
Info
- Publication number
- JPH0521588B2 JPH0521588B2 JP61200689A JP20068986A JPH0521588B2 JP H0521588 B2 JPH0521588 B2 JP H0521588B2 JP 61200689 A JP61200689 A JP 61200689A JP 20068986 A JP20068986 A JP 20068986A JP H0521588 B2 JPH0521588 B2 JP H0521588B2
- Authority
- JP
- Japan
- Prior art keywords
- water
- pressure
- distance
- water discharge
- nozzle
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 152
- 239000007921 spray Substances 0.000 claims description 44
- 239000003795 chemical substances by application Substances 0.000 claims 1
- 238000005507 spraying Methods 0.000 description 11
- 238000010586 diagram Methods 0.000 description 4
- 239000006260 foam Substances 0.000 description 3
- 238000006243 chemical reaction Methods 0.000 description 1
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
Description
【発明の詳細な説明】
（産業上の利用分野）
本発明は、放水圧力の制御により放水距離を制
御する放水ノズルの放水距離制御装置に関する。DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to a water discharge distance control device for a water discharge nozzle that controls the water discharge distance by controlling the water discharge pressure.
（従来技術）
従来、球技場や展示会場等の広い消火区域を有
する施設で使用される放水ノズルの放水距離制御
にあつては、放水ノズルを垂直及び水平回りに回
動自在に設置し、消火ポンプから加圧供給される
消火用水の吐出圧力が略一定であることから、放
水距離の制御は放水ノズルの仰角を変えることで
行なうようにしている。(Prior art) Conventionally, when controlling the water spray distance of water spray nozzles used in facilities with wide fire extinguishing areas such as ball game stadiums and exhibition halls, the water spray nozzles were installed so that they could rotate vertically and horizontally, and Since the discharge pressure of the fire extinguishing water pressurized and supplied from the pump is approximately constant, the water discharge distance is controlled by changing the elevation angle of the water discharge nozzle.
（発明が解決しようとする問題点）
しかしながら、放水ノズルの仰角を変える放水
距離の制御にあつては、遠距離についても近距離
についてもノズルからの放水量が一定であるた
め、ノズル仰角が大きく、しかも散布範囲が広範
囲となる遠距離にあつてはノズルから放射された
消火用水が放水範囲に対し略垂直方向から散布さ
れるようになることから放水位置の人や物が水激
を受けることは少ないがノズル仰角が小さくなる
近距離または中距離にあつては、ノズル仰角が小
さく、散布範囲が比較的狭範囲となることから放
水範囲に横方向から消火用水が散布され、しかも
遠距離に対して必要以上の水量が散布されるた
め、人や物に対して水激被害を与える恐れがあつ
た。(Problem to be solved by the invention) However, when controlling the water spray distance by changing the elevation angle of the water spray nozzle, since the amount of water sprayed from the nozzle is constant for both long and short distances, the nozzle elevation angle is large. Furthermore, in the case of long-distance spraying over a wide range, the fire extinguishing water emitted from the nozzle will be sprayed from a direction approximately perpendicular to the water spraying area, so people and objects at the water spraying location will be exposed to water shock. At short or medium distances, where the nozzle elevation angle is small, the nozzle elevation angle is small and the spraying range is relatively narrow, so fire extinguishing water is sprayed laterally within the water spray area, and at long distances. However, because more water than necessary was sprayed, there was a risk of severe water damage to people and property.
（問題点を解決するための手段）
本発明は、このような従来の問題点に鑑みてな
されたもので、放水距離のいかんにかかわらず常
に消火用水が放水範囲に対し上空から降り注ぐ形
の放水パターンをもつて水激被害がなく且つ単位
面積当りの散水量を均一に保ちつつ放水距離を制
御できるようにして放水ノズルの放水距離制御装
置を提供することを目的とする。(Means for Solving the Problems) The present invention has been made in view of the above-mentioned conventional problems, and is a water spray system in which fire extinguishing water always falls from the sky onto the water spray area, regardless of the water spray distance. To provide a water spraying distance control device of a water spraying nozzle by controlling the water spraying distance while maintaining a uniform water spraying amount per unit area without causing severe water damage with a pattern.
この目的を達成するため本発明にあつては、放
水ノズルの仰角を最大飛距離が得られる所定の仰
角、例えば25゜に固定的に設定し、放水ノズルへ
の給水配管に電動弁を設けると共にノズル放水圧
力を検出する圧力センサを設け、ノズル仰角を所
定仰角に固定設定したときの放水圧力に対する放
水距離の関係が実験的に得られていることから、
放水距離に応じた放水圧力を制御目標値として設
定し、この設定圧力と圧力センサで検出した放水
圧力の偏差を零とするように前記電動弁の開度を
フイードバツク制御するようにしたものである。 In order to achieve this purpose, the present invention fixedly sets the elevation angle of the water nozzle to a predetermined elevation angle that provides the maximum flight distance, for example, 25 degrees, and provides an electric valve in the water supply pipe to the water nozzle. A pressure sensor is installed to detect the nozzle water discharge pressure, and the relationship between the water discharge pressure and the water discharge distance when the nozzle elevation angle is fixed at a predetermined elevation angle has been experimentally obtained.
The water discharge pressure corresponding to the water discharge distance is set as a control target value, and the opening degree of the electric valve is feedback-controlled so that the deviation between this set pressure and the water discharge pressure detected by the pressure sensor is zero. .
（作用）
このような本発明の構成によれば、放水ノズル
の仰角は最大飛距離が得られる規定角度に固定的
に設定されており、この状態で放水距離に応じた
放水圧力となるように電動弁の開閉制御が行なわ
れることから、遠距離から近距離のいずれの放水
距離においても放水範囲に対し消火用水が上空か
ら降り注ぐ形の放水パターンを実現して水激被害
を確実に防ぐと共に単位面積当りの散水量を均一
に保つようにしたものである。(Function) According to the configuration of the present invention, the elevation angle of the water discharge nozzle is fixedly set to a specified angle that provides the maximum flying distance, and in this state, the water discharge pressure is set in accordance with the water discharge distance. Since the opening/closing of an electric valve is controlled, a water spray pattern in which fire extinguishing water falls from the sky over the water spray area can be realized regardless of the water spray distance, from long distances to short distances, thereby reliably preventing water damage and unit This is to keep the amount of water sprinkled uniformly per area.
（実施例）
第１図は本発明の一実施例を示した説明図であ
る。(Example) FIG. 1 is an explanatory diagram showing an example of the present invention.
まず構成を説明すると、１は放水ノズルであ
り、架台２に水平回動部３を介して水平回りに回
動自在に設置されており、放水ノズル１の仰角θ
は放水ノズル１によつて最大飛距離が得られる仰
角に固定的に設定されており、この放水ノズル１
の最大飛距離を与える仰角θとしては、放水実験
の結果からθ＝25゜前後に設定することが望まし
い。 First, to explain the configuration, reference numeral 1 is a water spray nozzle, which is installed on a pedestal 2 so as to be rotatable horizontally via a horizontal rotation part 3, and the elevation angle θ of the water spray nozzle 1 is
is fixedly set at the elevation angle at which the maximum flying distance can be obtained by the water spray nozzle 1.
Based on the results of water spray experiments, it is desirable to set the elevation angle θ that gives the maximum flight distance to around 25°.
放水ノズル１に対しては、図示しない加圧源と
しての消火ポンプからの給水配管４が接続され
る。また、この実施例の放水ノズル１は低い圧力
及び少ない放水量で長い飛距離と広い散布面積を
確保するため、ノズル内を通過する水流の周囲に
圧縮空気を吹込む構造をとつていることから、空
気配管４ａが接続される。尚、このように圧縮空
気を使用する放水ノズル１としては、例えば本願
出願人が既に提案している実願昭60−154761号の
ものが知られている。 A water supply pipe 4 from a fire pump serving as a pressure source (not shown) is connected to the water discharge nozzle 1 . In addition, the water discharge nozzle 1 of this embodiment has a structure in which compressed air is blown around the water flow passing through the nozzle in order to ensure a long flight distance and a wide spray area with low pressure and a small amount of water discharged. , air piping 4a is connected. As a water discharge nozzle 1 that uses compressed air in this manner, for example, the one proposed by the applicant of the present invention, disclosed in Utility Model Application No. 154761/1980, is known.
放水ノズル１に接続された加圧源からの給水配
管４の途中には電動弁５が設けられ、電動弁５は
内蔵したモータ駆動により弁の開閉制御を行なう
もので、一般には流量制御に用いられている。電
動弁５の２次側には放水圧力を検出するための圧
力センサ６が設置される。 An electric valve 5 is provided in the middle of the water supply pipe 4 from a pressurized source connected to the water discharge nozzle 1. The electric valve 5 is driven by a built-in motor to control the opening and closing of the valve, and is generally used for flow rate control. It is being A pressure sensor 6 is installed on the secondary side of the electric valve 5 to detect water discharge pressure.
このような放水ノズル１に対する配管系の構成
に対し、放水距離の制御手段として、放水距離設
定器８、圧力設定器９、加算点１０及び電流アン
プ１２が設けられる。 In the configuration of the piping system for the water spray nozzle 1, a water spray distance setting device 8, a pressure setting device 9, a summing point 10, and a current amplifier 12 are provided as means for controlling the water spray distance.
放水距離設定器８は放水ノズル１による放水距
離範囲、例えば５〜90ｍの放水距離設定範囲を有
し、火源位置までの距離に応じた適宜の放水距離
をマニアル若しくは自動設定することができる。
圧力設定器９は放水距離設定器８からの設定距離
を入力し、設定距離に対応した放水圧力Piを制御
目標値として加算点１０に出力する。即ち、圧力
設定器９は放水距離Ｓを放水圧力Ｐに変換する機
能を有し、この変換特性は放水ノズル１の放水実
験により得られた放水圧力と放水距離の関係から
変換特性を決めている。 The water spray distance setting device 8 has a water spray distance setting range of the water spray nozzle 1, for example, 5 to 90 m, and can manually or automatically set an appropriate water spray distance depending on the distance to the fire source position.
The pressure setting device 9 inputs the set distance from the water discharge distance setting device 8, and outputs the water discharge pressure Pi corresponding to the set distance to the addition point 10 as a control target value. That is, the pressure setting device 9 has a function of converting the water discharge distance S to the water discharge pressure P, and this conversion characteristic is determined from the relationship between the water discharge pressure and the water discharge distance obtained from the water discharge experiment of the water discharge nozzle 1. .
圧力設定器９からの設定圧力Piを受けた加算点
１０には圧力センサ６で検出した放水圧力Ｐが入
力されており、加算点１０は設定圧力Piと放水圧
力Ｐとの偏差△Ｐを電流アンプ１２に出力する。
電流アンプ１２は加算点１０からの圧力偏差△Ｐ
に応じた電流出力、例えば電動弁５の制御電流が
４〜20ｍＡであることから、圧力センサ△Ｐを４
〜20ｍＡの範囲の電流信号に変換して電動弁５に
出力する。電動弁５は電流アンプ１２からの４〜
20ｍＡ信号を受けて弁開度をモータ駆動により制
御し、圧力設定器９、加算点１０、電流アンプ１
２、電動弁５及び圧力センサ６でなるフイードバ
ツク系によつて放水ノズル１の放水圧力を圧力設
定器９による設定圧力Piとなるように電動弁５の
開閉制御を行なうようにしている。 The water discharge pressure P detected by the pressure sensor 6 is input to the addition point 10 which receives the set pressure Pi from the pressure setting device 9, and the addition point 10 converts the deviation △P between the set pressure Pi and the water discharge pressure P into a current. Output to amplifier 12.
The current amplifier 12 is the pressure deviation △P from the addition point 10.
For example, since the control current of the electric valve 5 is 4 to 20 mA, the pressure sensor △P is set to 4
It converts into a current signal in the range of ~20mA and outputs it to the electric valve 5. The electric valve 5 is connected to the current amplifier 12 from 4 to 4.
The valve opening degree is controlled by a motor drive in response to a 20mA signal, and a pressure setting device 9, a summing point 10, and a current amplifier 1 are used.
2. A feedback system consisting of the electric valve 5 and the pressure sensor 6 controls the opening and closing of the electric valve 5 so that the water discharge pressure of the water discharge nozzle 1 becomes the pressure set by the pressure setting device 9.
次に、第１図の実施例の作用を説明する。 Next, the operation of the embodiment shown in FIG. 1 will be explained.
第２図は第１図の放水ノズル１の放水圧力制御
で得られた放水パターンを、近距離L1、中距離
L2及び遠距離L3の３段階について示した説明図
であり、各放水パターンにおける実線で囲んだ範
囲が放水範囲となり、この放水範囲の中の斜線部
分はスプリンクラーヘツドの規定散水量となる５
／分・m2程度の散布量が得られる有効放水範囲
として示している。また、近距離、中距離及び遠
距離のいずれの放水パターンにおいても、第１図
に示したように放水ノズル１の仰角θは最大飛距
離が与えられる仰角θ＝25゜程度に固定的に設定
されていることから、放水ノズル１から放水され
た水は消火範囲に対し上空から降り注ぐ形の放水
パターンをもたらしている。 Figure 2 shows the water discharge patterns obtained by controlling the water discharge pressure of water discharge nozzle 1 in Figure 1, for short distance L1, medium distance
It is an explanatory diagram showing the three stages of L2 and long-distance L3, and the range surrounded by solid lines in each water discharge pattern is the water discharge range, and the diagonally shaded part within this water discharge range is the prescribed water spray amount of the sprinkler head.
It is shown as an effective water spraying range that can obtain a spray amount of about /min・m2 . In addition, in any of the short-range, medium-range, and long-range water spray patterns, the elevation angle θ of the water spray nozzle 1 is fixedly set to approximately 25°, which gives the maximum flight distance, as shown in Figure 1. As a result, the water sprayed from the water spray nozzle 1 produces a water spray pattern in which water falls from above onto the extinguishing area.
そこで、第１図の実施例において、例えば近距
離L1＝42ｍの放水距離を放水距離設定器８に設
定したとすると、この放水距離設定器８からの設
定値L1は圧力設定器９に与えられ、圧力設定器
９は設定距離L1に対応した放水圧力P1を加算点
１０に出力し、例えば圧力設定器９による設定圧
力P1はP1＝３Kgｆ／cm2となる。この圧力設定器
９からの設定圧力P1を受けた加算点１０は、そ
の時、圧力センサ６から検出されている放水圧力
Ｐとの偏差△Ｐを電流アンプ１２に出力し、電流
アンプ１２による電動弁５の制御で圧力センサ６
の放水圧力Ｐを設定圧力P1に保つように電動弁
５のフイードバツク制御が行なわれ、放水ノズル
１に対する放水圧力Ｐは設定圧力P1に保たれ、
その結果、第２図の近距離L1に示す放水パター
ンを得ることができる。 Therefore, in the embodiment shown in FIG. 1, for example, if a short distance L1 = 42 m is set in the water discharge distance setting device 8, the setting value L1 from the water discharge distance setting device 8 is given to the pressure setting device 9. , the pressure setting device 9 outputs the water discharge pressure P1 corresponding to the set distance L1 to the addition point 10, and for example, the setting pressure P1 by the pressure setting device 9 becomes P1=3Kgf/cm 2 . The addition point 10 that receives the set pressure P1 from the pressure setting device 9 outputs the deviation △P from the water discharge pressure P detected from the pressure sensor 6 at that time to the current amplifier 12, and the electric valve Pressure sensor 6 under control of 5
Feedback control of the electric valve 5 is performed to maintain the water discharge pressure P at the set pressure P1, and the water discharge pressure P to the water discharge nozzle 1 is maintained at the set pressure P1,
As a result, a water discharge pattern shown at short distance L1 in FIG. 2 can be obtained.
このような放水距離の設定に基づく放水圧力の
制御は、中距離L1及び遠距離L3についても同様
であり、例えば放水距離L2＝65ｍを設定したと
き、圧力設定器９は設定圧力P1＝５Kgｆ／cm2を
加算点１０に設定し、放水圧力を設定圧力P2＝
５Kgｆ／cm2となるように制御し、一方、放水距離
設定器８で遠距離L3を設定したときには圧力設
定器９は加算点１０に設定圧力P3＝８Kgｆ／cm2
を設定し、電動弁５の制御で放水圧力を８Kgｆ／
cm2を保つように制御し、遠距離L3の放水パター
ンを得ることができる。ここで、近距離、中距離
及び遠距離の各放水パターンにおける放水ノズル
１に対する空気配管５による圧縮空気の空気圧
は、例えば6.5Kgｆ／cm2と一定圧に保つている。 The control of the water discharge pressure based on the setting of the water discharge distance is the same for the middle distance L1 and the long distance L3. For example, when the water discharge distance L2 is set to 65 m, the pressure setting device 9 sets the set pressure P1 to 5 kgf/ Set cm 2 as addition point 10, and set water discharge pressure as set pressure P2 =
On the other hand, when the water discharge distance setting device 8 sets the long distance L3, the pressure setting device 9 sets the addition point 10 to set pressure P3 = 8Kgf/cm 2
is set, and the water discharge pressure is set to 8 kgf/ by controlling the electric valve 5.
cm 2 and can obtain a long-distance L3 water discharge pattern. Here, the air pressure of the compressed air supplied by the air pipe 5 to the water spray nozzle 1 in each of the short-range, middle-range, and long-range water spray patterns is maintained at a constant pressure of, for example, 6.5 Kgf/cm 2 .
尚、上記の実施例は圧縮空気を吹込む形式の放
水ノズルを例にとるものであつたが、本発明はこ
れに限定されず、通常の棒状放水ノズル若しくは
泡ノズルについてもそのまま適用することがで
き、例えば棒状放水ノズルにあつては最大飛距離
を与える仰角は30〜40゜であることから、この範
囲に放水ノズルの仰角を工定的に設定し、また泡
ノズルの場合には最大飛距離が得られる仰角は
20゜前後であることから、泡ノズルを20゜前後の仰
角に固定的に設定して同様に放水距離に応じた放
水圧力制御を行なえば良い。 In addition, although the above-mentioned embodiment took a water spray nozzle of the type that blows compressed air as an example, the present invention is not limited to this, and can be applied as it is to a normal rod-shaped water spray nozzle or foam nozzle. For example, in the case of a rod-shaped water nozzle, the elevation angle that gives the maximum flight distance is 30 to 40 degrees, so the elevation angle of the water nozzle should be set in this range, and in the case of a foam nozzle, the maximum flight distance should be set. The elevation angle at which the distance can be obtained is
Since the angle is around 20 degrees, it is sufficient to set the foam nozzle at a fixed elevation angle of around 20 degrees and similarly control the water discharge pressure according to the water discharge distance.
また、第１図の実施例にあつては、放水距離設
定器８による任意の放水距離を自由に設定できる
場合を例にとるものであつたが、実用上は例えば
近距離、中距離、遠距離の３段階を自動若しくは
マニアルで切換えるようにしても良い。 In addition, in the embodiment shown in FIG. 1, the case where the arbitrary water spraying distance can be freely set using the water spraying distance setting device 8 is taken as an example, but in practical use, for example, short distance, medium distance, long distance, etc. The three distance levels may be switched automatically or manually.
（発明の効果）
以上説明してきたように本発明によれば、放水
ノズルの仰角を最大飛距離が得られる所定の仰
角、例えば25゜に固定的に設定し、放水ノズルへ
の給水配管に電動弁を設けると共にノズル放水圧
力を検出する圧力センサを設け、ノズル仰角を所
定仰角に固定設定したときの放水圧力に対する放
水距離の関係が実験的に得られていることから、
放水距離に応じた放水圧力を制御目標値として設
定し、この設定圧力と圧力センサで検出した放水
圧力の偏差を零とするように電動弁の開度をフイ
ードバツク制御するようにしたため、放水範囲に
対し消火用水が上空から降り注ぐ形の放水パター
ンをもつて放水距離を適宜に制御することがで
き、放水範囲の人や物に対する水激被害を与える
ことなく、また単位面積当りの散水量を均一に保
ちつつ放水距離を自由に制御することができる。(Effects of the Invention) As explained above, according to the present invention, the elevation angle of the water nozzle is fixedly set to a predetermined elevation angle that provides the maximum flying distance, for example, 25 degrees, and the water supply pipe to the water nozzle is electrically connected. A valve is provided and a pressure sensor is provided to detect the nozzle water discharge pressure, and the relationship between the water discharge pressure and the water discharge distance when the nozzle elevation angle is fixed at a predetermined elevation angle has been experimentally obtained.
The water discharge pressure corresponding to the water discharge distance is set as the control target value, and the opening degree of the electric valve is controlled in feedback so that the deviation between this set pressure and the water discharge pressure detected by the pressure sensor is zero, so that the water discharge pressure within the water discharge range is controlled. On the other hand, by using a water spray pattern in which fire extinguishing water falls from the sky, it is possible to appropriately control the water spray distance, without causing severe water damage to people or property within the water spray area, and by uniformly distributing the amount of water per unit area. You can freely control the water spray distance while maintaining the
また、放水ノズルは水平回りに回動するだけで
良いことから、放水ノズルの回動機構構造を簡略
化することができる。 Moreover, since the water spray nozzle only needs to be rotated horizontally, the rotating mechanism structure of the water spray nozzle can be simplified.
第１図は本発明の一実施例を示した説明図、第
２図は第１図の実施例による放水パターンの一例
を示した説明図である。
１：放水ノズル、２：架台、３：水平回動部、
４：給水配管、４ａ：空気配管、５：電動弁、
６：圧力センサ、８：放水距離設定器、９：圧力
設定器、１０：加算点、１２：電流アンプ。
FIG. 1 is an explanatory diagram showing an embodiment of the present invention, and FIG. 2 is an explanatory diagram showing an example of a water discharge pattern according to the embodiment of FIG. 1: Water nozzle, 2: Frame, 3: Horizontal rotation part,
4: Water supply piping, 4a: Air piping, 5: Electric valve,
6: Pressure sensor, 8: Water discharge distance setting device, 9: Pressure setting device, 10: Addition point, 12: Current amplifier.
Claims (1)
し水平回りに回動自在に設置された放水ノズル
と、該放水ノズルの放水圧力を検出する圧力セン
サと、加圧源で加圧された消火剤を前記放水ノズ
ルに供給する配管に設けられた電動弁と、放水距
離に応じた放水圧力を設定する設定手段と、該設
定手段による放水圧力を目標値として前記圧力セ
ンサの検出圧力との偏差が零となるように前記電
動弁の開度を制御する制御手段とを備えたことを
特徴とする放水ノズルの放水距離制御装置。1. A water spray nozzle whose elevation angle is fixed at an angle that provides the maximum flight distance and is installed to be able to rotate freely around the horizontal, a pressure sensor that detects the water spray pressure of the water spray nozzle, and a fire extinguisher pressurized by a pressure source. an electric valve provided on a pipe that supplies the agent to the water spray nozzle, a setting means for setting the water discharge pressure according to the water discharge distance, and a deviation between the water discharge pressure by the setting means and the detected pressure of the pressure sensor as a target value. A water discharge distance control device for a water discharge nozzle, comprising: a control means for controlling the opening degree of the electric valve so that the distance becomes zero.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP20068986A JPS6357063A (en) | 1986-08-27 | 1986-08-27 | Discharge distance control apparatus of discharge nozzle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP20068986A JPS6357063A (en) | 1986-08-27 | 1986-08-27 | Discharge distance control apparatus of discharge nozzle |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6357063A JPS6357063A (en) | 1988-03-11 |
| JPH0521588B2 true JPH0521588B2 (en) | 1993-03-24 |
Family
ID=16428609
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP20068986A Granted JPS6357063A (en) | 1986-08-27 | 1986-08-27 | Discharge distance control apparatus of discharge nozzle |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6357063A (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0779846B2 (en) * | 1988-12-28 | 1995-08-30 | ホーチキ株式会社 | Fire extinguisher |
| JPH0291565U (en) * | 1988-12-28 | 1990-07-20 | ||
| JPH04114665A (en) * | 1990-09-04 | 1992-04-15 | Nittan Co Ltd | Water atomizing spraying nozzle |
| JP2572920B2 (en) * | 1992-02-28 | 1997-01-16 | ホーチキ株式会社 | Double fire gun for firefighting |
| JP5869938B2 (en) * | 2012-03-30 | 2016-02-24 | 能美防災株式会社 | Water discharge restriction device |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60114276A (en) * | 1983-11-25 | 1985-06-20 | 東急車輌製造株式会社 | Jet liquid stream controller of turret nozzle for fire truck |
| JPS60114275A (en) * | 1983-11-25 | 1985-06-20 | 東急車輌製造株式会社 | Jet liquid flow controller of turret nozzle for fire truck |
-
1986
- 1986-08-27 JP JP20068986A patent/JPS6357063A/en active Granted
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60114276A (en) * | 1983-11-25 | 1985-06-20 | 東急車輌製造株式会社 | Jet liquid stream controller of turret nozzle for fire truck |
| JPS60114275A (en) * | 1983-11-25 | 1985-06-20 | 東急車輌製造株式会社 | Jet liquid flow controller of turret nozzle for fire truck |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6357063A (en) | 1988-03-11 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| EP0663858B1 (en) | Fire fighting equipment | |
| CA2111232A1 (en) | Method and equipment for fire fighting | |
| CN111068208B (en) | Intelligent fire extinguishing system of railway trolley type outdoor transformer | |
| JP2572920B2 (en) | Double fire gun for firefighting | |
| JPH0521588B2 (en) | ||
| WO2020121022A1 (en) | A machine for outputting at least one jet of fluid and corresponding method | |
| CN113164995B (en) | Machine for outputting at least one fluid jet and method for outputting at least one fluid jet | |
| JPH05293198A (en) | Fire extinguishing device | |
| CN210138396U (en) | Fire-fighting high-pressure water cannon with pressure regulator | |
| JP2004024381A (en) | Fire extinguishing robot for tunnel | |
| JPS6357067A (en) | Fire extinguishing apparatus near to discharge nozzle | |
| JPH0574384B2 (en) | ||
| JPH05293199A (en) | Fire extinguishing device | |
| JPH04114665A (en) | Water atomizing spraying nozzle | |
| JPH04114666A (en) | Water atomizing spraying nozzle | |
| JP2875906B2 (en) | Airplane hangar fire extinguisher | |
| JP3073264B2 (en) | Fire extinguisher | |
| JP3084146B2 (en) | Fire extinguisher | |
| JPH08229156A (en) | Water spraying nozzle for short distance | |
| JP3084147B2 (en) | Fire extinguisher | |
| JP3135376B2 (en) | Fire extinguisher | |
| JP3127404B2 (en) | Fire extinguisher | |
| JP3165476B2 (en) | Fire extinguisher | |
| JP3157211B2 (en) | Fire extinguisher | |
| CN115228008B (en) | Mine fire prevention and extinguishing foam inhibition device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
| LAPS | Cancellation because of no payment of annual fees |