JP2008029876A - Flow water detector - Google Patents

Flow water detector Download PDF

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JP2008029876A
JP2008029876A JP2007271952A JP2007271952A JP2008029876A JP 2008029876 A JP2008029876 A JP 2008029876A JP 2007271952 A JP2007271952 A JP 2007271952A JP 2007271952 A JP2007271952 A JP 2007271952A JP 2008029876 A JP2008029876 A JP 2008029876A
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valve
valve body
flowing water
water detection
detection device
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Ryotaro Chiba
亮太郎 千葉
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Senju Sprinkler Co Ltd
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Senju Sprinkler Co Ltd
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Abstract

<P>PROBLEM TO BE SOLVED: To provide a flow water detector, replacing packing or the like in a short time and having excellent maintainability. <P>SOLUTION: In this flow water detector, the interior of a valve casing is partitioned into an upstream chamber connected to the water supply side and a downstream chamber connected to the sprinkler head side by a partition, a communicating opening is bored in the partition, and the downstream side is provided with a freely opening and closing valve element. The valve element has a lift valve structure adapted to slide up and down along the inner wall of the valve casing, and has a control chamber formed between a lid provided on an extension of the valve casing inner wall where the valve element slides. Opening of the valve element is detected to generate a flow water detection signal. A connecting port communicated with the outside through the control chamber is mounted in the valve casing. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

本発明は、建物内に設置されるスプリンクラー設備の流水検知装置に関するものである。 The present invention relates to a water flow detector for sprinkler equipment installed in a building.

スプリンクラー設備の流水検知装置は、逆止弁構造をしており、一次側は給水装置と接続され、二次側はスプリンクラーヘッドと接続されている。警戒状態において一次側には加圧水が充填され、二次側には加圧流体が充填されており、一次側圧力と二次側圧力は略等しく弁体は閉止された状態にある。 The flowing water detection device of the sprinkler facility has a check valve structure, the primary side is connected to the water supply device, and the secondary side is connected to the sprinkler head. In the alert state, the primary side is filled with pressurized water and the secondary side is filled with pressurized fluid, and the primary side pressure and the secondary side pressure are substantially equal, and the valve body is closed.

火災時にスプリンクラーヘッドが作動して二次側の流体がスプリンクラーヘッドより放出されると二次側配管内の圧力が低下し、一次側の圧力が二次側の圧力を上回ると弁体が開いて一次側から二次側へ水が流れる。この弁体の開放を検知することで流水検知信号を発するものである。 When the sprinkler head is activated in the event of a fire and the secondary fluid is discharged from the sprinkler head, the pressure in the secondary piping will drop, and if the primary pressure exceeds the secondary pressure, the valve will open. Water flows from the primary side to the secondary side. A running water detection signal is generated by detecting the opening of the valve body.

図６に示す流水検知装置Ａは、弁体Ｖが弁箱内壁に沿って上下に摺動するリフト弁構造をしている自動開閉弁であり、一次側Ｉが水源と接続し、二次側ＩＩがスプリンクラーヘッドＳｈに接続されている。弁体Ｖから弁箱外部に突設した昇降軸Ｖ１の先端に設けたリミットスイッチＳｍにより、弁体Ｖの開閉による上下運動を検出して弁体の開閉状態を監視している。（例えば、特許文献１参照）。
特公昭３５−１６３４６号公報 （第１−２頁、第１図） The flowing water detection device A shown in FIG. 6 is an automatic opening / closing valve having a lift valve structure in which the valve body V slides up and down along the inner wall of the valve box, the primary side I is connected to the water source, and the secondary side II is connected to the sprinkler head Sh. The limit switch Sm provided at the tip of the lift shaft V1 projecting from the valve body V to the outside of the valve box detects the vertical movement caused by the opening and closing of the valve body V to monitor the open / closed state of the valve body. (For example, refer to Patent Document 1).
Japanese Patent Publication No. 35-16346 (page 1-2, Fig. 1)

上記の流水検知装置は、一次側Ｉと二次側ＩＩは配管によって弁体Ｖ上部の空間（以下「制御室」という）を介して連通している。該制御室は弁体および弁体が摺動する弁箱内壁、蓋Ｆの内側により構成されている。前述の一次側Ｉと二次側ＩＩを連通している配管は、蓋Ｆに接続されているが、弁箱内部のパッキンの交換等で蓋を開く際に配管を蓋から外さないと蓋が弁箱から取り外せない構造となっている。 In the flowing water detection device, the primary side I and the secondary side II communicate with each other via a space above the valve body V (hereinafter referred to as “control room”) by piping. The control chamber includes a valve body, a valve box inner wall on which the valve body slides, and an inner side of the lid F. The piping communicating the primary side I and the secondary side II is connected to the lid F. However, if the piping is not removed from the lid when the lid is opened by replacing the packing inside the valve box, etc., the lid The structure cannot be removed from the valve box.

また、パッキンの交換作業が終了した際には、蓋から外した配管を元通りに接続する手間や時間が発生する。 Further, when the packing replacement work is completed, labor and time for connecting the pipe removed from the lid to the original state is required.

そこで本発明では、パッキン等の交換の際に短時間で作業可能なメンテナンス性に優れた流水検知装置の提供を目的としている。
Therefore, an object of the present invention is to provide a flowing water detection device excellent in maintainability that can be operated in a short time when replacing packing or the like.

上記の目的を達成するために、請求項１記載の発明は、弁箱内部が、給水側に接続される一次側室と、スプリンクラーヘッド側に接続される二次側室とに隔壁によって仕切られており、隔壁に連通口が穿設されており二次側には開閉自在な弁体が設けられ、該弁体は弁箱内壁に沿って上下に摺動するリフト弁構造であり、弁体が摺動する弁箱内壁の延長上に設けられた蓋と弁体の間に形成された制御室を有しており、弁体の開放を検知することで流水検知信号を発する流水検知装置において、前記制御室から外部へ通じる接続口が弁箱に設置されている流水検知装置である。 In order to achieve the above object, according to the first aspect of the present invention, the inside of the valve box is partitioned by a partition wall into a primary side chamber connected to the water supply side and a secondary side chamber connected to the sprinkler head side. In addition, a communicating port is formed in the partition wall, and a valve body that can be opened and closed is provided on the secondary side. The valve body has a lift valve structure that slides up and down along the inner wall of the valve box. In the flowing water detection device which has a control chamber formed between the lid provided on the extension of the inner wall of the moving valve box and the valve body and generates a flowing water detection signal by detecting the opening of the valve body, It is a flowing water detection device in which the connection port leading from the control room to the outside is installed in the valve box.

請求項２記載の発明は、前記流水検知装置において、蓋の内側は筒状で制御室側に突出しており、該筒状部に開口が形成されている請求項１記載の流水検知装置である。 The invention according to claim 2 is the flowing water detection device according to claim 1, wherein the inside of the lid is cylindrical and protrudes toward the control chamber, and an opening is formed in the cylindrical portion. .

請求項３記載の発明は、前記流水検知装置において、接続口は開放状態の弁***置よりも蓋側に設置されている請求項１記載の流水検知装置である。
The invention according to claim 3 is the water flow detection device according to claim 1, wherein the connection port is disposed closer to the lid than the valve body position in the open state.

請求項１記載の発明によれば、制御室から外部へ通じる接続口を弁箱側に設けたことで、パッキンの交換の際に蓋のみを取り外すことが可能であり、従来のように制御室に通じる配管を蓋から取り外す手間が省ける。 According to the first aspect of the present invention, since the connection port leading from the control chamber to the outside is provided on the valve box side, it is possible to remove only the lid when replacing the packing. This saves you the trouble of removing the pipe that leads to the lid from the lid.

請求項２記載の発明によれば、蓋の内側を筒状とし、筒状部の端面にて弁箱内部の部品を係止可能な構造とすることが可能である。また筒状部に開口を設けることにより、請求項１記載の接続口に制御室内部の流体が連通可能となる。 According to the second aspect of the present invention, the inner side of the lid can be formed into a cylindrical shape, and the structure inside the valve box can be locked with the end surface of the cylindrical portion. Further, by providing an opening in the cylindrical portion, fluid in the control chamber can communicate with the connection port according to claim 1.

請求項３記載の発明によれば、接続口を開放状態の弁***置よりも蓋側に設置したことで、弁体が摺動する際に接続口を塞ぐことが無いように配慮されているものである。
According to the third aspect of the present invention, the connection port is disposed closer to the lid than the open valve body position, so that the connection port is not blocked when the valve body slides. Is.

上記の接続口は、弁体の摺動する内壁部よりも蓋側の位置に設置することが好ましい。
The connection port is preferably installed at a position closer to the lid than the inner wall portion on which the valve body slides.

以下、この発明の実施例を図１から図４を参照して説明する。図１は本発明の流水検知装置が設置されたスプリンクラー設備の系統図、図２は図１の流水検知装置の断面図、図３は図１のスプリンクラーヘッドが作動した直後の流水検知装置の断面図、図４は流水検知装置の弁体が全開状態のときの断面図である。 Embodiments of the present invention will be described below with reference to FIGS. 1 is a system diagram of a sprinkler facility in which the water flow detection device of the present invention is installed, FIG. 2 is a cross-sectional view of the water flow detection device of FIG. 1, and FIG. 3 is a cross section of the water flow detection device immediately after the sprinkler head of FIG. FIG. 4 and FIG. 4 are cross-sectional views when the valve body of the flowing water detection device is fully opened.

本発明の流水検知装置が設けられたスプリンクラー設備は、図１に示すように水源１、給水装置２、流水検知装置３、スプリンクラーヘッド４、高架水槽Ｗから構成される。 As shown in FIG. 1, the sprinkler facility provided with the flowing water detection device of the present invention includes a water source 1, a water supply device 2, a flowing water detection device 3, a sprinkler head 4, and an elevated water tank W.

水源１は、消火水を貯蔵しておく水槽であり、給水装置２は配管７に水源１から消火水を汲み上げ、配管７の末端に接続されたスプリンクラーヘッド４へ供給するための装置である。警戒時において配管７は末端のスプリンクラーヘッド４まで消火水が充填されている。なお、水源１および給水装置２のかわりに家庭用の水道設備を使用することも可能である。 The water source 1 is a water tank for storing fire-extinguishing water, and the water supply device 2 is a device for pumping the fire-extinguishing water from the water source 1 to the pipe 7 and supplying it to the sprinkler head 4 connected to the end of the pipe 7. At the time of warning, the pipe 7 is filled with fire extinguishing water up to the sprinkler head 4 at the end. In addition, it is also possible to use household water supply equipment instead of the water source 1 and the water supply device 2.

流水検知装置３は図２に示すように、バルブ部分と信号制御装置６から構成され、バルブの弁箱内部が隔壁８により一次側室Ｉと二次側室ＩＩに仕切られており、隔壁８には一次側室Ｉと二次側室ＩＩを連通する連通口９が穿設されている。 As shown in FIG. 2, the flowing water detection device 3 includes a valve portion and a signal control device 6, and the inside of the valve box of the valve is partitioned into a primary side chamber I and a secondary side chamber II by a partition wall 8. A communication port 9 for communicating the primary side chamber I and the secondary side chamber II is formed.

連通口９の二次側室ＩＩ側を弁座として、該弁座の上に有底円筒型の弁体１０が載置されている。該弁体１０の上部はフランジ形状をしており、フランジ側面は弁箱の内壁に沿って摺動自在であり、フランジ側面には水平溝が刻設され、該水平溝にリング状の水密部材１１が設けられている。 With the secondary side chamber II side of the communication port 9 as a valve seat, a bottomed cylindrical valve body 10 is placed on the valve seat. The upper part of the valve body 10 has a flange shape, the flange side surface is slidable along the inner wall of the valve box, a horizontal groove is formed on the flange side surface, and a ring-shaped watertight member is formed in the horizontal groove. 11 is provided.

弁体１０から弁箱外部へ突設して設けられたロッド１２の先端付近には、リミットスイッチ１３が設けられており、弁体１０の開閉による上下運動をリミットスイッチ１３により検出可能である。 A limit switch 13 is provided in the vicinity of the tip of the rod 12 provided so as to protrude from the valve body 10 to the outside of the valve box, and the vertical movement due to opening and closing of the valve body 10 can be detected by the limit switch 13.

具体的に説明するとリミットスイッチ１３は、アクチュエーターから物体が離れるとスイッチがＯＮとなるｂ接点のものを用い、アクチュエーターには弾発体Ｓによりロッド１２側に付勢されたプレートＰが常に接触した状態にある。 Specifically, the limit switch 13 uses a b contact that is turned on when an object is moved away from the actuator, and a plate P urged toward the rod 12 by the projectile S is always in contact with the actuator. Is in a state.

プレートＰは弁箱外部に軸支され回動自在であり、プレートＰの軸支部分と反対側の端には調整ネジＴが設けられている。リミットスイッチ１３のアクチュエーターとプレートＰとは調整ネジＴを介して接触しており、微妙な位置調整が可能である。 The plate P is pivotally supported outside the valve box and is rotatable, and an adjustment screw T is provided at the end opposite to the pivotal support portion of the plate P. The actuator of the limit switch 13 and the plate P are in contact with each other via an adjusting screw T, and fine position adjustment is possible.

弁体１０が開くとロッド１２も上方へ移動し、プレートＰはロッド１２に押されて軸を支点に回動し、プレートＰの調整ネジＴの先端がリミットスイッチ１３のアクチュエーターより離れることでリミットスイッチ１３がＯＮとなり、信号制御装置６へ信号が送信される。 When the valve body 10 is opened, the rod 12 is also moved upward, the plate P is pushed by the rod 12 and pivoted about the shaft, and the tip of the adjustment screw T of the plate P is separated from the actuator of the limit switch 13 so that the limit is reached. The switch 13 is turned on and a signal is transmitted to the signal control device 6.

弁体１０の上部には弁箱内壁および蓋１４によって空間が形成され、これを制御室１５とする。弁体１０と蓋１４との間には弾発体１６が設けられ、弁体１０を弁座側に付勢している。 A space is formed in the upper part of the valve body 10 by the inner wall of the valve box and the lid 14, and this is referred to as a control chamber 15. An elastic body 16 is provided between the valve body 10 and the lid 14 to urge the valve body 10 toward the valve seat.

制御室１５は外部へ通じる接続口１７を有しており、該接続口１７に一次側室Ｉと二次側室ＩＩへ通じる配管１８が接続されている。該配管１８の一次側室Ｉから制御室１５までの間１８Ａには、一次側室Ｉ側から制御室１５への通水が可能な逆止弁１９と、オリフィス２０が設置され、制御室１５から二次側室ＩＩまでの間１８Ｂには、常時開放状態にあり通電時に閉弁する通電閉止弁２１が設けられている。 The control chamber 15 has a connection port 17 that leads to the outside, and a pipe 18 that leads to the primary side chamber I and the secondary side chamber II is connected to the connection port 17. A check valve 19 capable of passing water from the primary side chamber I side to the control chamber 15 and an orifice 20 are installed in a space 18 </ b> A from the primary side chamber I to the control chamber 15. An energization shut-off valve 21 that is always open and closes when energized is provided in 18B until the next chamber II.

オリフィス２０の口径は、通電閉止弁２１の弁座口径よりも小径とする。 The diameter of the orifice 20 is set to be smaller than the valve seat diameter of the energization shut-off valve 21.

通電閉止弁２１は信号制御装置６と電気的に接続されており、信号制御装置６によって開閉制御可能である。該通電閉止弁２１は、平時は弁体が開放されており通電時のみ内部の弁体が閉止される構造で、具体的には電磁弁や、スプリングリターン式のボール弁等を用いる。 The energization shut-off valve 21 is electrically connected to the signal control device 6 and can be controlled to be opened and closed by the signal control device 6. The energization shut-off valve 21 has a structure in which the valve element is open during normal times and the internal valve element is closed only during energization. Specifically, an electromagnetic valve, a spring return ball valve, or the like is used.

信号制御装置６は、流水検知装置３のリミットスイッチ１３の作動による信号を管理室に設けられた制御盤３０に送信する等、各種装置との信号の伝達が可能であり、給水装置２の起動信号を出力したり、流水検知装置３に設けられた通電閉止弁２１の開閉を制御するものである。 The signal control device 6 can transmit signals to various devices such as transmitting a signal generated by the operation of the limit switch 13 of the flowing water detection device 3 to the control panel 30 provided in the management room. A signal is output and the opening / closing of the energization shut-off valve 21 provided in the flowing water detection device 3 is controlled.

また、スプリンクラーヘッド４が誤作動した際には、信号制御装置６に設けられた給水停止スイッチによって通電閉止弁２１を閉止し、一次側室Ｉの消火水を制御室１５内に導入させ、弁体１０を弁座に着座させてスプリンクラーヘッド４からの放水を停止することが可能である。 When the sprinkler head 4 malfunctions, the energization shut-off valve 21 is closed by a water supply stop switch provided in the signal control device 6, and fire extinguishing water in the primary side chamber I is introduced into the control chamber 15, and the valve body It is possible to stop water discharge from the sprinkler head 4 by seating 10 on the valve seat.

スプリンクラーヘッド４は、流水検知装置３の二次側室ＩＩと接続した配管に設けられている。スプリンクラーヘッド４の内部には弁体を支持している感熱作動機構が組み込まれおり、火災の熱によって感熱作動機構が作動して弁体を開放させ、二次側ＩＩの配管内の消火水を散布するものである。 The sprinkler head 4 is provided in a pipe connected to the secondary side chamber II of the flowing water detection device 3. The sprinkler head 4 incorporates a heat-sensitive operating mechanism that supports the valve body. The heat-sensitive operating mechanism is activated by the heat of the fire to open the valve body, and extinguish water in the secondary side II pipe. It is something to spray.

高架水槽Ｗは、図１に示すように、スプリンクラー設備の上部に配備され、スプリンクラー設備の配管７と接続されている。高架水槽Ｗは水圧差によって水槽内に蓄えられた水を配管７へ供給可能であり、配管７側から高架水槽Ｗへの逆流を防止するために逆止弁２３が設けられている。 As shown in FIG. 1, the elevated water tank W is disposed on the upper part of the sprinkler facility and connected to the pipe 7 of the sprinkler facility. The elevated water tank W can supply water stored in the water tank to the pipe 7 due to a water pressure difference, and a check valve 23 is provided to prevent a backflow from the pipe 7 side to the elevated water tank W.

次に上記実施例の流水検知装置が設置されたスプリンクラー設備の作動について説明する。 Next, the operation of the sprinkler facility in which the running water detection device of the above embodiment is installed will be described.

火災が発生すると、火災の熱によりスプリンクラーヘッド４が作動して、流水検知装置３の二次側室ＩＩと接続している配管内の消火水がスプリンクラーヘッド４より噴出する。 When a fire occurs, the sprinkler head 4 is actuated by the heat of the fire, and the fire extinguishing water in the pipe connected to the secondary side chamber II of the flowing water detection device 3 is ejected from the sprinkler head 4.

スプリンクラーヘッド４の作動によって二次側室ＩＩに接続された配管内は減圧し、またオリフィス２０によって一次側室Ｉから制御室１５への消火水の供給量が制限されているので、流水検知装置３の弁体１０にかかる力は、一次側室Ｉよりかかる圧力が制御室１５内の圧力を上回り弁体１０が少し開方向へ移動し、スプリンクラーヘッドの作動分の流量が流れる程度に開き、一次側室Ｉより二次側室ＩＩへ消火水が流れ込む（図３参照）。 The piping connected to the secondary side chamber II is depressurized by the operation of the sprinkler head 4, and the amount of extinguishing water supplied from the primary side chamber I to the control chamber 15 is limited by the orifice 20. The force applied to the valve body 10 opens so that the pressure applied from the primary side chamber I exceeds the pressure in the control chamber 15 and the valve body 10 moves slightly in the opening direction, and the flow rate for the operation of the sprinkler head flows. Fire extinguishing water flows into the secondary side chamber II (see FIG. 3).

弁体１０が開いたことによりロッド１２も上方へ移動して、プレートＰを押し上げ、軸支されたプレートＰは回動してリミットスイッチ１３のアクチュエータから離れ、スイッチがＯＮ状態となり、信号制御装置６が信号を出力する。 When the valve body 10 is opened, the rod 12 is also moved upward to push up the plate P, and the pivotally supported plate P is rotated away from the actuator of the limit switch 13 so that the switch is turned on. 6 outputs a signal.

信号制御装置６からの出力信号によって給水装置２が起動され、配管７から一次側室Ｉを通って加圧された消火水が送られてくるので、弁体１０は全開位置まで移動する（図４参照）。送水された消火水はスプリンクラーヘッド４より散布され火災を鎮圧・消火するものである。 The water supply device 2 is activated by the output signal from the signal control device 6, and pressurized fire extinguishing water is sent from the pipe 7 through the primary side chamber I, so that the valve body 10 moves to the fully open position (FIG. 4). reference). The fire extinguishing water sent is sprayed from the sprinkler head 4 to suppress and extinguish the fire.

他の実施例として、図５に示すように実施例１のスプリンクラー設備に火災感知器を設置して、スプリンクラーヘッドの作動の際に火災感知器５が作動していない場合を、スプリンクラーヘッド４が誤作動したと判断し、スプリンクラーヘッド４への給水を自動的に遮断することが可能となる。 As another embodiment, as shown in FIG. 5, when the fire detector is installed in the sprinkler equipment of the first embodiment and the fire detector 5 is not activated when the sprinkler head is activated, the sprinkler head 4 is It is possible to determine that a malfunction has occurred and automatically shut off the water supply to the sprinkler head 4.

火災感知器５は、信号制御装置６や制御盤３０等と電気的に接続されている。火災感知器５は火災の熱や煙等によって火災を感知して、火災信号を信号制御装置６や制御盤３０等に出力することが可能である。火災感知器５は、スプリンクラーヘッド４の作動よりも早く作動するタイプのものを使用するのが好ましい。 The fire detector 5 is electrically connected to the signal control device 6, the control panel 30, and the like. The fire detector 5 can detect a fire by the heat or smoke of the fire and can output a fire signal to the signal control device 6 or the control panel 30. The fire detector 5 is preferably of a type that operates faster than the operation of the sprinkler head 4.

上記流水検知装置が設置されたスプリンクラー設備の作動について説明する。火災時の作動については実施例１と略同様であるので、火災時以外にスプリンクラーヘッドが誤作動した場合について説明する。 The operation of the sprinkler facility in which the flowing water detection device is installed will be described. Since the operation at the time of fire is substantially the same as that of the first embodiment, a case where the sprinkler head malfunctions other than at the time of fire will be described.

スプリンクラーヘッド４に衝撃が加えられる等して分解・作動すると、二次側ＩＩに接続された配管内の消火水が流出して、前述のように流水検知装置３の弁体１０がスプリンクラーヘッドの作動分の流量が流れる程度に開き、リミットスイッチ１３がＯＮ状態となり信号制御装置６へリミットスイッチ１３の作動信号が出力される。 When the sprinkler head 4 is disassembled and operated due to an impact or the like, the fire extinguishing water in the pipe connected to the secondary side II flows out, and the valve body 10 of the water flow detector 3 is connected to the sprinkler head as described above. The limit switch 13 is turned on so that the flow rate for the operation flows, and the operation signal of the limit switch 13 is output to the signal control device 6.

そのとき、信号制御装置６に火災感知器５より火災信号が入力されていないので、信号制御装置６は通電閉止弁２１を閉止させて、制御室１５へ一次側室Ｉの消火水を流入させる。 At that time, since the fire signal is not input to the signal control device 6 from the fire detector 5, the signal control device 6 closes the energization shut-off valve 21 and allows the fire water in the primary side chamber I to flow into the control chamber 15.

制御室１５内に消火水が流入すると弁体１０は下方へ摺動して弁座に着座され、一次側室Ｉから二次側室ＩＩへの通水を遮断して、スプリンクラーヘッド４の誤作動による水損被害を低減させるものである。 When the fire extinguishing water flows into the control chamber 15, the valve body 10 slides downward and is seated on the valve seat, shuts off water flow from the primary side chamber I to the secondary side chamber II, and is caused by malfunction of the sprinkler head 4. It reduces water damage.

本発明の流水検知装置が設置されたスプリンクラー設備の系統図System diagram of sprinkler equipment in which the water flow detector of the present invention is installed 図１の流水検知装置の断面図1 is a cross-sectional view of the flowing water detection device of FIG. 図１のスプリンクラーヘッドが作動した直後の流水検知装置の断面図Sectional drawing of the flowing water detection apparatus immediately after the sprinkler head of FIG. 1 act | operates 流水検知装置の弁体が全開状態のときの断面図Sectional view when the valve body of the water flow detector is fully open 本発明の流水検知装置が設置された他の実施例のスプリンクラー設備の系統図System diagram of sprinkler equipment of another embodiment in which the water flow detection device of the present invention is installed 特許文献１記載の流水検知装置の断面図Sectional view of the flowing water detection device described in Patent Document 1

符号の説明Explanation of symbols

１ 水源
２ 給水装置
３ 流水検知装置
４ スプリンクラーヘッド
６ 信号制御装置
１０ 弁体
１２ ロッド
１３ リミットスイッチ
１４ 蓋
１５ 制御室
１７ 接続口
Ｐ プレート
Ｓ 弾発体
Ｔ 調整ネジ
1 Water source
2 water supply equipment
3 Flowing water detection device
4 Sprinkler head
6 Signal control device
10 Disc
12 rods
13 Limit switch
14 Lid
15 Control room
17 Connection port
P plate
S projectile
T adjustment screw

Claims (3)

弁箱内部が、給水側に接続される一次側室と、スプリンクラーヘッド側に接続される二次側室とに隔壁によって仕切られており、隔壁に連通口が穿設されており二次側には開閉自在な弁体が設けられ、該弁体は弁箱内壁に沿って上下に摺動するリフト弁構造であり、弁体が摺動する弁箱内壁の延長上に設けられた蓋と弁体の間に形成された制御室を有しており、弁体の開放を検知することで流水検知信号を発する流水検知装置において、前記制御室から外部へ通じる接続口が弁箱に設置されていることを特徴とする流水検知装置。
The inside of the valve box is partitioned by a partition into a primary chamber connected to the water supply side and a secondary chamber connected to the sprinkler head side, and a communication port is drilled in the partition, and the secondary side opens and closes. The valve body has a lift valve structure that slides up and down along the inner wall of the valve box, and a lid and a valve body provided on the extension of the inner wall of the valve box on which the valve body slides. In the flowing water detection device that has a control chamber formed between them and generates a flowing water detection signal by detecting the opening of the valve body, a connection port that leads from the control chamber to the outside is installed in the valve box Flowing water detection device characterized by.
前記流水検知装置において、蓋の内側は筒状で制御室側に突出しており、該筒状部に開口が形成されていることを特徴とする請求項１記載の流水検知装置。
2. The flowing water detection device according to claim 1, wherein the inside of the lid is cylindrical and protrudes toward the control chamber, and an opening is formed in the cylindrical portion.
前記流水検知装置において、接続口は開放状態の弁***置よりも蓋側に設置されていることを特徴とする請求項１記載の流水検知装置。

In the said flowing water detection apparatus, the connection port is installed in the lid | cover side rather than the valve body position of the open state, The flowing water detection apparatus of Claim 1 characterized by the above-mentioned.

JP2007271952A 2007-10-19 2007-10-19 Flow water detector Pending JP2008029876A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
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Application Number Priority Date Filing Date Title
JP2007271952A JP2008029876A (en) 2007-10-19 2007-10-19 Flow water detector

Related Parent Applications (1)

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JP2003279505A Division JP2005040451A (en) 2003-07-25 2003-07-25 Flowing water detector

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Publication Number Publication Date
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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2010146679A1 (en) * 2009-06-17 2010-12-23 千住スプリンクラー株式会社 Flowing-water detector
WO2019008831A1 (en) * 2017-07-04 2019-01-10 千住スプリンクラー株式会社 Check valve for fire-extinguishing equipment device

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH06289941A (en) * 1993-03-31 1994-10-18 Nohmi Bosai Ltd Pressure regulator
JP2005040451A (en) * 2003-07-25 2005-02-17 Senju Sprinkler Kk Flowing water detector

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH06289941A (en) * 1993-03-31 1994-10-18 Nohmi Bosai Ltd Pressure regulator
JP2005040451A (en) * 2003-07-25 2005-02-17 Senju Sprinkler Kk Flowing water detector

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2010146679A1 (en) * 2009-06-17 2010-12-23 千住スプリンクラー株式会社 Flowing-water detector
TWI503144B (en) * 2009-06-17 2015-10-11 Senju Sprinkler Co Ltd Water detection device
WO2019008831A1 (en) * 2017-07-04 2019-01-10 千住スプリンクラー株式会社 Check valve for fire-extinguishing equipment device
JPWO2019008831A1 (en) * 2017-07-04 2020-04-30 千住スプリンクラー株式会社 Check valve for fire extinguishing equipment
JP7014451B2 (en) 2017-07-04 2022-02-01 千住スプリンクラー株式会社 Check valve for fire extinguishing equipment

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