JP2003154022A - Non-pressure type pre-operable fire extinguishing equipment - Google Patents

Abstract

PROBLEM TO BE SOLVED: To simply build pre-operable fire extinguishing equipment which automatically fails to discharge fire extinguishing water in such an accidental case that the operation of sprinkler heads is started as caused by external impacts or the like. SOLUTION: The non-pressure (dry) type pre-operable fire extinguishing equipment is produced with the inside of a secondary side piping opened to the atmospheric pressure and is equipped with a flowing water detection means and a drain means. With the operation of a fire sensor, water runs through the secondary side piping but a fire alarm is generated according to the AND condition of signals of the fire sensor and flowing water signals of the flowing water detection means with the operation of the sprinkler heads. After the operation of the fire sensor, even when a specified time passes, if no signal from the flowing water detection means is inputted, the drain means is started and the operation is returned to the standby position.

Description

【発明の詳細な説明】Detailed Description of the Invention

【０００１】[0001]

【発明の属する技術分野】本発明は火災時にスプリンク
ラーヘッドから消火水を放射する予作動式消火設備のう
ち、常時は二次側配管内を大気圧とし消火薬剤を充填し
ない乾式の無圧式予作動式消火設備に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a pre-operation type fire extinguishing system in which fire water is radiated from a sprinkler head in the event of a fire, and a dry type pressureless pre-operation in which the secondary side pipe is always at atmospheric pressure and no extinguishing agent is filled. Formula fire extinguishing equipment.

【０００２】[0002]

【従来の技術】閉鎖型スプリンクラー消火設備には、大
きく分けて乾式と湿式、予作動式とがある。湿式消火設
備は二次側配管まで消火水を充填させた消火設備であ
り、乾式のスプリンクラー消火設備は、一次側（水源
側）までは消火水が充填されているが、スプリンクラー
ヘッドを取り付けた二次側の配管には圧縮空気が充填さ
れている消火設備である。2. Description of the Related Art Closed type sprinkler fire extinguishing equipment is roughly classified into dry type, wet type and pre-operated type. Wet fire extinguishing equipment is fire extinguishing equipment with secondary side piping filled with fire extinguishing water.Dry-type sprinkler fire extinguishing equipment is filled with fire extinguishing water up to the primary side (water source side), but with a sprinkler head installed. This is a fire extinguishing facility in which the secondary pipe is filled with compressed air.

【０００３】予作動式消火設備は火災感知器からの火災
信号とスプリンクラーヘッドの作動信号（流水信号な
ど）を検知し、AND条件を充たすときに消火薬剤を散布
する消火設備である。The pre-operation type fire extinguishing equipment is a fire extinguishing equipment which detects a fire signal from a fire detector and an operation signal of a sprinkler head (flowing water signal, etc.) and sprays a fire extinguishing agent when the AND condition is satisfied.

【０００４】予作動式消火設備には空圧式・充水式予作
動消火設備がある。空圧式予作動設備は一次側までは消
火水が充填し、二次側の配管には圧縮空気を充したもの
であり、二次側配管を乾式とすることでヘッドが万が一
暴発しても放水が行われることがない。The pre-operation type fire extinguishing equipment includes pneumatic type and water filling type pre-operation extinguishing equipment. The pneumatic pre-operation equipment is filled with fire-extinguishing water up to the primary side, and the secondary side piping is filled with compressed air.By making the secondary side piping dry type, even if the head accidentally expels water Is never done.

【０００５】一方、充水式予作動消火設備は二次側配管
まで充水し、空圧式予作動消火設備に必要なコンプレッ
サなどの二次側加圧装置を排除することで設備コストを
抑え、ヘッドが暴発した際には二次側配管に充水されて
あった消火水が放出されるのみで湿式消火設備に比べる
と極わずかの水損ですむという利点を有している。On the other hand, in the water-filled pre-operation fire extinguishing equipment, the secondary side piping is filled with water, and the equipment cost is suppressed by eliminating the secondary-side pressurizing device such as the compressor required for the pneumatic pre-operation fire extinguishing equipment. When the head explodes, only the fire extinguishing water that had been filled in the secondary piping is discharged, and it has the advantage of requiring a very small amount of water loss compared to wet fire extinguishing equipment.

【０００６】[0006]

【発明が解決しようとする課題】予作動式消火設備はス
プリンクラーヘッドの不時放水による水損を防止できる
という優れた利点を有している消火設備であり、コンピ
ュータルームなどのように主にスプリンクラーによる水
損を懸念する場所に設置されている。The pre-operation type fire extinguishing equipment is an extinguishing equipment having an excellent advantage that it can prevent water loss due to unintentional water discharge of the sprinkler head, and is mainly used in a sprinkler such as a computer room. It is installed in a place where water damage due to

【０００７】しかしながら現在ではコンピュータはコン
ピュータルームに限られるわけではなく、普通のオフィ
スにあふれている。このため、いたずらなどの外的衝撃
・異常加熱により万が一スプリンクラーヘッドが作動す
るとコンピュータが破損し、莫大な損害を被る。このた
め、従来は湿式消火設備を設置していた火災区画であっ
ても水損防止を考慮すると予作動式消火設備の普及が望
まれる。However, nowadays, computers are not limited to computer rooms, but are abundant in ordinary offices. Therefore, if the sprinkler head operates due to external impact such as mischief or abnormal heating, the computer will be damaged, resulting in enormous damage. For this reason, even in the case of a fire compartment where wet fire extinguishing equipment has been installed in the past, it is desired to spread pre-operated fire extinguishing equipment in consideration of water damage prevention.

【０００８】ところで空圧式予作動消火設備は、上述の
理由でスプリンクラーヘッドが暴発しても消火薬剤が放
出されないが、スプリンクラーヘッドの作動を感知する
ためにコンプレッサなどの二次側加圧手段が必要とな
り、通常の湿式消火設備に比べて複雑な設備構成となり
設備価格が高価になる。さらに、火災時に火災感知器か
ら火災信号を受理して予作動式流水検知装置の連通口を
開放し二次側を充水させるため、火災感知器が誤報を発
生した場合、手動で二次側配管内の消火薬剤を放出しな
ければならず、煩雑な作業を要することとなる。By the way, in the pneumatic pre-operation fire extinguishing equipment, the extinguishing agent is not released even if the sprinkler head explodes due to the above-mentioned reason, but a secondary side pressurizing means such as a compressor is required to detect the operation of the sprinkler head. As a result, the equipment price is higher than the conventional wet fire extinguishing equipment because of the complicated equipment structure. Furthermore, in the event of a fire, the fire signal is received from the fire detector to open the communication port of the pre-operation type water flow detection device to fill the secondary side, so if the fire detector generates a false alarm, manually operate the secondary side. The fire extinguishing agent in the pipe must be released, which requires complicated work.

【０００９】一方、充水式予作動消火設備は加圧手段が
いらないことや、火災感知器の誤報発生時の二次側配管
内の消火薬剤排出作業を要さないなどの点で簡易な構成
となっているが、スプリンクラーヘッドが暴発した際に
わずかであるが水損が生じることや、配管内が凍結する
恐れがあるところでは特別の配慮が必要であるなどの問
題点を有している。On the other hand, the water-filled pre-operation fire extinguishing equipment has a simple structure in that it does not require a pressurizing means and does not need to discharge the fire extinguishing agent in the secondary side pipe when a false alarm is generated by the fire detector. However, there are problems such as a slight water loss when the sprinkler head explodes, and special consideration is required where there is a risk of freezing in the piping. .

【００１０】予作動式消火設備はこのように設置コスト
ばかりでなく、保守・点検コストも高額である。しか
し、前述のようにスプリンクラーヘッドが暴発した際の
水損を防止でき、さらに設置コストならびに保守・点検
コストが低い消火設備が望まれている。As described above, the pre-operation type fire extinguishing equipment is not only expensive to install but also expensive to maintain and inspect. However, as mentioned above, there is a demand for fire extinguishing equipment that can prevent water damage when the sprinkler head explodes and that is low in installation cost and maintenance / inspection costs.

【００１１】[0011]

【課題を解決するための手段】上記問題を解決するため
に本発明の発明者は予作動式消火設備を、空圧式の水損
防止方法と、充水式の簡易さという両方の長所を無圧式
予作動消火設備により提供する。本発明によればスプリ
ンクラーヘッドが暴発した際に水損を被ることがない予
作動式消火設備を加圧手段などの複雑な機器を用いるこ
となく簡易に構成することができる。In order to solve the above problems, the inventor of the present invention provides a pre-operation type fire extinguishing facility without the advantages of both a pneumatic type water loss prevention method and a simple filling type. Provided by pressure type pre-operation fire extinguishing equipment. According to the present invention, it is possible to easily construct a pre-operation type fire extinguishing equipment which does not suffer water loss when the sprinkler head explodes, without using complicated equipment such as pressurizing means.

【００１２】本発明の予作動式消火設備は、火災発生時
の熱を感知し消火薬剤を放射するスプリンクラーヘッド
と、火災を感知し制御盤に火災信号を伝達する火災感知
器と、火災信号や起動弁の開閉、火災警報の発信など行
う制御盤と、消火薬剤を待機させる水源、消火薬剤を二
次側へ送付する加圧送水装置と、火災感知器の火災警報
により起動する起動弁、流水検知手段を有する予作動式
流水検知装置と、二次側に大気圧開放手段、とを有する
無圧式の予作動式消火設備であって、該予作動式消火設
備の二次側に消火薬剤の流水を検出する流水検知手段と
設置し、火災感知器の起動と流水検知手段の流水信号の
ＡＮＤ条件により火災警報を発生することを特徴とする
無圧予作動式消火設備である。The pre-operation type fire extinguishing equipment of the present invention comprises a sprinkler head for detecting heat when a fire occurs and emitting a fire extinguishing agent, a fire detector for detecting a fire and transmitting a fire signal to a control panel, a fire signal and A control panel that opens and closes the start valve and sends out a fire alarm, a water source to put the fire extinguishing agent on standby, a pressurized water supply device that sends the fire extinguishing agent to the secondary side, a start valve that is activated by the fire alarm of the fire detector, running water A pre-operation type running water detection device having a detection means, and a pressureless pre-operation fire extinguishing equipment having an atmospheric pressure releasing means on the secondary side, wherein the extinguishing agent on the secondary side of the pre-action fire extinguishing equipment A pressureless pre-acting fire extinguishing facility characterized by being installed with running water detection means for detecting running water and generating a fire alarm in response to an AND condition of activation of a fire detector and running water signal of the running water detection means.

【００１３】[0013]

【実施の形態】以下に本発明の実施の形態について示
す。本発明の予作動式流水検知装置では、大気圧開放手
段に非火災時に二次側配管内の消火薬剤を排出し消火設
備の復帰をおこなう復帰手段を設置してもよい。BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be described below. In the pre-operation type water flow detection device of the present invention, the atmospheric pressure releasing means may be provided with a returning means for discharging the fire extinguishing agent in the secondary side pipe and returning the fire extinguishing equipment when there is no fire.

【００１４】復帰手段を設置することで感知器が誤報を
発生したときの復帰を容易にすることが出来る。By providing the resetting means, it is possible to easily restore the sensor when the false alarm is generated.

【００１５】本発明の無圧式予作動式消火設備の大気圧
開放手段は予作動式流水検知装置の二次側に設置された
小孔でもよい。The atmospheric pressure releasing means of the pressureless pre-operated fire extinguishing equipment of the present invention may be a small hole provided on the secondary side of the pre-operated running water detection device.

【００１６】予作動式流水検知装置の二次側に小孔を穿
設することで容易に火災感知器が誤作動した際に容易に
二次側に充填された消火薬剤を排出することが出来る。By forming a small hole in the secondary side of the pre-operation type water flow detection device, the fire extinguishing agent filled in the secondary side can be easily discharged when the fire detector malfunctions easily. .

【００１７】本発明の予作動式消火設備においては予作
動式流水検知装置は流水検知手段を内蔵してもよい。In the pre-operation type fire extinguishing equipment of the present invention, the pre-operation type running water detecting device may have a built-in running water detecting means.

【００１８】流水検知手段を内蔵することで予作動式流
水検知装置を小型化することが出来る。By incorporating the flowing water detecting means, the pre-operation type flowing water detecting device can be downsized.

【００１９】本発明の所定時間はスプリンクラーの最大
放水時間と消火薬剤の充填時間を足し合わせたものとし
てもよい。The predetermined time of the present invention may be the sum of the maximum water discharge time of the sprinkler and the filling time of the fire extinguishing agent.

【００２０】復帰のための所定時間は非火災であること
を判断するための時間である。スプリンクラーの放水時
間と重点時間を考慮したものであることが好ましい。The predetermined time for returning is a time for judging that there is no fire. It is preferable to consider the water discharge time and the priority time of the sprinkler.

【００２１】上記構成とすることにより安価で保守・点
検が容易でかつ信頼性の高い予作動式消火設備を極めて
簡易に構成できるといった優れた特徴をもった予作動式
消火設備である。With the above-mentioned structure, the pre-operation type fire extinguishing equipment has an excellent feature that the pre-operation type fire extinguishing equipment which is inexpensive, easy to maintain and inspect, and highly reliable can be constructed very easily.

【００２２】[0022]

【実施例】次に本発明の実施の形態について図1から図
５を参照して説明していく。図１は本発明の無圧式予作
動式スプリンクラー消火設備の系統図である。図２は図
１の消火設備に用いられる無圧式予作動式流水検知装置
の断面図である。Embodiments Next, embodiments of the present invention will be described with reference to FIGS. FIG. 1 is a system diagram of a pressureless pre-operation type sprinkler fire extinguishing equipment of the present invention. FIG. 2 is a sectional view of a pressureless pre-operation type running water detection device used in the fire extinguishing equipment of FIG.

【００２３】図３は本発明の無圧式予作動式消火設備の
火災発生時のフロー、図４は本発明の無圧式予作動式消
火設備の感知器誤作動時のフロー、図５は本発明の無圧
式予作動式消火設備の復帰処理のフローである。FIG. 3 is a flow chart of the pressureless pre-action fire extinguishing equipment of the present invention when a fire occurs, FIG. 4 is a flow chart of the pressureless pre-action fire extinguishing equipment of the present invention when a sensor malfunctions, and FIG. 5 is the present invention. 2 is a flow chart of a recovery process of the pressureless pre-operation type fire extinguishing equipment.

【００２４】本発明の予作動式消火設備は水源Ｗ、ポン
プＰ,スプリンクラーヘッドＨ、火災報知器Ｓ,制御装置
Ｃ、予作動式流水検知装置V1とを含んで構成されてお
り、更に予作動式流水検知装置V1内は流水検出手段排F1
と排水手段Dを内蔵して構成された予作動式消火設備で
ある。The pre-actuated fire extinguishing equipment of the present invention comprises a water source W, a pump P, a sprinkler head H, a fire alarm S, a control device C, and a pre-actuated running water detection device V1. Type water flow detection device V1 is a flow water detection means discharge F1
It is a pre-operation type fire extinguishing equipment that is configured by incorporating the drainage means D.

【００２５】水源Ｗは消火薬剤である消火水を貯蔵して
おり、ポンプＰによって消火水を汲み上げ、一次側配管
から流水検知装置を通って二次側配管に設置されている
スプリンクラーヘッドＨへ供給することができる。The water source W stores fire-extinguishing water which is a fire-extinguishing agent, and the pump P pumps up the fire-extinguishing water and supplies the fire-extinguishing water from the primary-side pipe to a sprinkler head H installed in the secondary-side pipe through a running water detection device. can do.

【００２６】スプリンクラーヘッドＨは、火災の熱を感
知して感熱分解部が分解し、弁体を開放するものであ
る。スプリンクラーヘッドＨの詳細については当業者に
周知されており、本発明の要旨と異なるのでこれ以上の
説明は省略する。The sprinkler head H is designed to detect the heat of a fire to decompose the heat-sensitive decomposition portion and open the valve body. The details of the sprinkler head H are well known to those skilled in the art, and are different from the gist of the present invention, and a further description thereof will be omitted.

【００２７】火災感知器Ｓは、温度により火災を感知す
るものや、煙感知器、炎感知器等あるが、スプリンクラ
ーヘッドＨが作動するよりも早く火災を感知できるもの
を使用するのが好ましい。The fire detector S includes a fire detector that detects a fire based on temperature, a smoke detector, a flame detector, and the like, but it is preferable to use a fire detector that can detect a fire earlier than the sprinkler head H is activated.

【００２８】制御装置Ｃは予作動式流水検知装置V1の流
水検知手段F1からの流水信号および火災感知器Ｓからの
火災信号を受信し、予作動式流水検知装置V1の起動弁１
７を開閉をするための信号を入出力したり、図示しない
火災警報装置への出力、火災感知器Ｓが誤報であった際
の復帰信号の出力など消火設備の状態信号を出力するも
のである。The control device C receives the water flow signal from the water flow detection means F1 of the pre-operated water flow detection device V1 and the fire signal from the fire detector S, and starts the start valve 1 of the pre-operated water flow detection device V1.
It inputs and outputs signals for opening and closing 7, and outputs status signals of fire extinguishing equipment such as output to a fire alarm device (not shown) and output of a return signal when the fire sensor S is a false alarm. .

【００２９】予作動式流水検知装置V1は一次側配管と二
次側配管との間に接続されており、常時は連通口１９が
閉塞され一次側から二次側への消火水の流出を阻止して
いる。The pre-operation type water flow detection device V1 is connected between the primary side pipe and the secondary side pipe, and the communication port 19 is normally closed to prevent the extinguishing water from flowing out from the primary side to the secondary side. is doing.

【００３０】予作動式流水検知装置の排水手段Dは常時
開放されている。このため、予作動式流水検知装置V1の
二次側は大気圧となり、所謂無圧式予作動消火設備を構
成している。The drainage means D of the pre-operation type water flow detection device is always open. For this reason, the secondary side of the pre-operation type running water detection device V1 is at atmospheric pressure, and constitutes a so-called pressureless pre-operation fire extinguishing facility.

【００３１】以下に予作動式流水検知装置V1の構成の詳
細を示す。The details of the configuration of the pre-operation type water flow detection device V1 will be described below.

【００３２】予作動式流水検知装置V1の本体１には内部
を斜めに仕切る隔壁２が形成されている。隔壁２で仕切
られた一方は一次側３であり、もう一方は二次側４とな
っており、一次側３の上部は円筒状のシリンダー１１が
設置され、その上には椀状の蓋部材１２が内部を密閉状
態に保つように設置されている。The main body 1 of the pre-operation type water flow detecting device V1 is formed with a partition wall 2 which divides the inside obliquely. One of which is partitioned by the partition wall 2 is a primary side 3 and the other is a secondary side 4, and a cylindrical cylinder 11 is installed on the upper side of the primary side 3 and a bowl-shaped lid member is provided thereon. 12 is installed to keep the inside sealed.

【００３３】蓋部材１２の一側には外部に通じる孔１５
が穿設されていて、孔の出口にはテーパー牝ネジ１６が
螺設されている。テーパー牝ネジ１６には起動弁１７を
取り付けた感知配管１８が接続される。A hole 15 communicating with the outside is provided at one side of the lid member 12.
And a taper female screw 16 is screwed at the exit of the hole. A sensing pipe 18 having a starting valve 17 attached thereto is connected to the taper female screw 16.

【００３４】隔壁２は中央が水平となっており、ここに
は連通口１９があって、その上部が弁座２０となり弁座
２０の上には主弁体２１が設置されている。主弁体２１
は上部がフランジとなっており、該フランジが前述シリ
ンダー１１に沿って上下に摺動するようになっている。The partition wall 2 has a horizontal center, a communication port 19 is provided therein, and an upper portion thereof serves as a valve seat 20, and a main valve body 21 is installed on the valve seat 20. Main valve body 21
Has a flange at the top, and the flange slides up and down along the cylinder 11.

【００３５】主弁体２１、シリンダー１１及び蓋部材１
２で形成される空間は制御室２３である。Main valve body 21, cylinder 11 and lid member 1
The space formed by 2 is the control room 23.

【００３６】蓋部材１２と主弁体２１の間には圧縮バネ
２６が設置されており、平時は主弁体２１を弁座２０に
押し付けて一次側３の流体が二次側４に流入しないよう
にしている。A compression spring 26 is installed between the lid member 12 and the main valve body 21, and in normal times, the main valve body 21 is pressed against the valve seat 20 so that the fluid on the primary side 3 does not flow into the secondary side 4. I am trying.

【００３７】一次側３とフランジ２７の間の円筒部分に
は、バタフライ弁３０が予作動式流水検知装置１に埋め
込まれて設置されている。In the cylindrical portion between the primary side 3 and the flange 27, a butterfly valve 30 is installed by being embedded in the pre-operation type water flow detection device 1.

【００３８】予作動式流水検知装置の二次側４の下部に
は、火災感知器が誤作動した際に二次側配管内の消火水
を排出するために設置された排水手段Dである小径のオ
リフィスが設けられている。該オリフィスは常時開放さ
れている。At the lower part of the secondary side 4 of the pre-operation type running water detecting device, a small diameter which is a drainage means D installed for discharging the fire extinguishing water in the secondary side pipe when the fire detector malfunctions. Orifices are provided. The orifice is always open.

【００３９】さらに本発明の予作動式流水検知装置V1に
は一次側３から二次側４へ至る流水を直接検出する流水
検知手段F1が設置されている。以下では本発明の予作動
式流水検知装置V1の流水検知手段F1について説明する。Further, the pre-operation type running water detecting device V1 of the present invention is provided with running water detecting means F1 for directly detecting running water from the primary side 3 to the secondary side 4. Hereinafter, the flowing water detecting means F1 of the pre-operation type flowing water detecting device V1 of the present invention will be described.

【００４０】本発明の予作動式流水検知装置V1で用いら
れる流水検知手段F1は予作動式流水検知装置の二次側に
設置されており、弁体１０１、支柱１０２、弾発体１０
３、１０４、遅延装置１０６、ガイド１０７を含んで構
成されている。The running water detecting means F1 used in the pre-operated running water detecting device V1 of the present invention is installed on the secondary side of the pre-running running water detecting device, and includes the valve element 101, the support column 102 and the elastic body 10.
3, 104, a delay device 106, and a guide 107.

【００４１】当該流水検知手段F1は二次側に生じた流水
を弁体１０１、および支柱１０２の上下変位により検出
し、遅延装置により流水信号を発生させるものである。The flowing water detecting means F1 detects the flowing water generated on the secondary side by the vertical displacement of the valve element 101 and the column 102, and generates a flowing water signal by the delay device.

【００４２】弁体１０１の形状は連通口より略小径の薄
板椀状であり中央に支柱に挿通するための小孔が穿設さ
れている。該弁体１０１は予作動式流水検知装置F1の連
通口１９直下に設置され、流水時の流体力を作用させる
働きをする。The valve body 101 is shaped like a thin plate bowl having a diameter smaller than that of the communication port, and a small hole is formed in the center for inserting the support column. The valve body 101 is installed immediately below the communication port 19 of the pre-operation type water flow detection device F1 and has a function of exerting a fluid force during water flow.

【００４３】支柱１０２の形状は円柱形上であり、弾発
体１０３および１０４を係止するための段部を上下に有
している。上部が入水部、下部が遅延装置を起動・解除
させる接点となっている。The column 102 has a columnar shape, and has step portions at the top and bottom for locking the elastic bodies 103 and 104. The upper part is the water inlet, and the lower part is the contact that activates / deactivates the delay device.

【００４４】該支柱上部には弾発体１０３と弁体１０１
が挿通され、該弾発体１０３が弁体１０１を上方に押圧
支持することで該弁体１０１が支柱上端で係止されてい
る。An elastic body 103 and a valve body 101 are provided on the upper part of the column.
Is inserted, and the elastic body 103 presses and supports the valve body 101 upward, so that the valve body 101 is locked at the upper end of the column.

【００４５】支柱下部はガイド１０７の小孔より予作動
式流水検知装置本体１の外部に突出している。該突出部
は遅延装置１０６を起動・解除させるための接点となっ
ており、下部の溝部にはレバー１０５が挟持され該支柱
１０２が上下することでレバー１０５が回動し、遅延装
置が起動・解除される。The lower part of the support column projects from the small hole of the guide 107 to the outside of the pre-operation type running water detection device main body 1. The protrusion serves as a contact for activating / deactivating the delay device 106, and the lever 105 is clamped in the lower groove portion so that the pillar 102 moves up and down to rotate the lever 105 to activate / deactivate the delay device. It will be canceled.

【００４６】遅延装置１０６は起動後、所定時間経過し
た後に火災警報を発生するための流水信号を発生するも
のである。その構造については同業者に広く周知されて
いるのでここではこれ以上の説明は省略する。遅延装置
は二次側配管を充水させるときにも起動される。このた
め該所定時間は二次側配管内を充水させるのに必要な時
間以上とする。The delay device 106 generates a running water signal for generating a fire alarm after a lapse of a predetermined time after starting. The structure thereof is widely known to those skilled in the art, and therefore further description will be omitted here. The delay device is also activated when the secondary side piping is filled with water. Therefore, the predetermined time is set to be longer than or equal to the time required to fill the inside of the secondary pipe.

【００４７】支柱１０２はガイド１０７に挿入された弾
発体１０４により上方に押圧支持され、常時は二次側へ
の突出量が最小になるように設置され、遅延装置は解除
されている。さらに弁体１０１が支柱１０２の上端に押
圧支持され連通口１９を略覆うことで待機状態となる。The column 102 is pressed and supported upward by the elastic body 104 inserted in the guide 107, and is normally installed so that the amount of protrusion to the secondary side is minimized, and the delay device is released. Further, the valve body 101 is pressed and supported by the upper end of the support column 102 and substantially covers the communication port 19, whereby a standby state is established.

【００４８】さらに二次側配管に消火水が充填された後
も所定時間経過後に流水信号が検知されない場合、復帰
信号を出力し速やかに起動弁１７を閉塞し排水手段５０
より消火水を排出して元の待機状態に復帰するものであ
る。Further, when the running water signal is not detected after a predetermined time elapses even after the secondary side pipe is filled with the fire extinguishing water, a return signal is output to promptly close the start valve 17 to drain the drainage means 50.
The fire extinguishing water is discharged and the original standby state is restored.

【００４９】次に本発明の予作動式スプリンクラー消火
設備の作用について説明する。Next, the operation of the pre-operation type sprinkler fire extinguishing equipment of the present invention will be described.

【００５０】本発明の予作動式スプリンクラー消火設備
は、通常一次側配管および予作動式流水検知装置V1の制
御室２３が消火水で充たされており、バタフライ弁３０
は開放状態である。In the pre-operation type sprinkler fire extinguishing equipment of the present invention, the primary side piping and the control room 23 of the pre-operation type running water detection device V1 are normally filled with fire extinguishing water, and the butterfly valve 30 is used.
Is open.

【００５１】予作動式流水検知装置V1の主弁体２１は通
常時において制御室２３の中に設置された圧縮バネ２６
の作用と制御室２３内の消火水の圧力により着座し連通
口１９を閉塞している。The main valve body 21 of the pre-operation type water flow detection device V1 is a compression spring 26 installed in the control chamber 23 in a normal state.
And the pressure of the fire extinguishing water in the control chamber 23, the seat is seated and the communication port 19 is closed.

【００５２】火災が発生して火災感知器Ｓが火災信号を
発生すると制御盤Cは復帰用タイマーT１の起動信号を出
力し復帰用タイマーT１が起動する。さらに制御盤は起
動弁１７の開放信号を出力し起動弁１７が開放される。
起動弁１７が開放されることで、制御室２３内の消火水
が起動弁１７を介して流出し、制御室２３内の圧力が低
下する。When a fire occurs and the fire detector S generates a fire signal, the control panel C outputs a start signal of the reset timer T1 and the reset timer T1 is started. Further, the control panel outputs an opening signal of the starting valve 17 to open the starting valve 17.
When the start valve 17 is opened, the fire extinguishing water in the control chamber 23 flows out through the start valve 17, and the pressure in the control chamber 23 decreases.

【００５３】すると一次側内の圧力が、制御室２３内の
圧縮バネ２６の押圧力を上回り、主弁体２１が上昇す
る。主弁体２１が上昇することで連通口１９が開放さ
れ、予作動式流水検知装置V1の一次側３と二次側４が連
通して消火水が二次側配管へ流れ込みスプリンクラーヘ
ッドＳの導水孔を充水させる。Then, the pressure in the primary side exceeds the pressing force of the compression spring 26 in the control chamber 23, and the main valve body 21 rises. When the main valve body 21 rises, the communication port 19 is opened, the primary side 3 and the secondary side 4 of the pre-operation type water flow detection device V1 communicate with each other, the extinguishing water flows into the secondary side pipe, and the water of the sprinkler head S is introduced. Fill the holes with water.

【００５４】このとき連通口１９に生じた流体力により
流水検知手段の弁体１０１には、弁体１０１を下方へ押
し下げようとする力が働く。この力は弾発体１０４が支
柱１０２を押圧支持していた力よりも大であるため、弁
体１０１は支柱１０２と連動して下方へ押し下げられ、
レバー１０５が回動し、遅延装置が起動する。At this time, the fluid force generated at the communication port 19 acts on the valve body 101 of the flowing water detecting means to push the valve body 101 downward. Since this force is larger than the force with which the elastic body 104 presses and supports the support column 102, the valve body 101 is pushed downward in conjunction with the support column 102,
The lever 105 rotates and the delay device is activated.

【００５５】さらに流水量が増加し、遅延装置１０６の
レバーが最大限下方に押し下げられると、弁体１０１に
設置していた弾発体１０３の押圧力以上の流水力が弁体
１０１に作用し弁体のみが更に下方に押し下げられる。
これにより流量が増加しても流水を妨げることがない。When the amount of flowing water further increases and the lever of the delay device 106 is pushed down as much as possible, the flowing force more than the pressing force of the elastic body 103 installed on the valve body 101 acts on the valve body 101. Only the valve body is pushed further downward.
As a result, even if the flow rate is increased, the running water is not obstructed.

【００５６】この時点でスプリンクラーヘッドHは閉塞
されているため予作動式流水検知装置V1の一次側の流体
力と二次側の流体力が略同一となる。主弁体２１には一
次側の流体力と制御室２３に作用する流体力が作用し、
主弁体２１には主弁体２１を着座させる力が働き連通口
１９が閉塞される。At this point, since the sprinkler head H is closed, the fluid force on the primary side and the fluid force on the secondary side of the pre-operation type water flow detection device V1 become substantially the same. On the main valve body 21, the fluid force on the primary side and the fluid force acting on the control chamber 23 act,
A force for seating the main valve body 21 acts on the main valve body 21 to close the communication port 19.

【００５７】連通口１９が閉塞することにより本発の予
作動式流水検知装置V1の接点が遅延装置を解除する方向
に回動し、遅延装置は解除される。When the communication port 19 is closed, the contact point of the pre-operated flowing water detecting device V1 of the present invention is rotated in the direction to release the delay device, and the delay device is released.

【００５８】このとき予作動式流水検知装置V1の遅延時
間は二次側配管内が充水されただけでは流水信号を出力
しないよう設定されているため流水信号が出力されな
い。つまり流水検知手段F1の遅延時間は二次側配管内を
消火水で充たすのに十分な時間、例えば１０〜３０秒程
度に設定されている。At this time, since the delay time of the pre-operation type water flow detection device V1 is set so as not to output the water flow signal only when the secondary side pipe is filled with water, the water flow signal is not output. That is, the delay time of the flowing water detection means F1 is set to a time sufficient to fill the secondary side pipe with fire extinguishing water, for example, about 10 to 30 seconds.

【００５９】この後火災の熱によりスプリンクラーヘッ
ドHが作動し、連通口１９が開放され、スプリンクラー
ヘッドから消火水が放出される。Thereafter, the heat of the fire activates the sprinkler head H, the communication port 19 is opened, and fire extinguishing water is discharged from the sprinkler head.

【００６０】一次側から二次側へ至る流体力より再び流
水検知手段F1の遅延装置が起動される。該流水検知手段
F1は遅延時間経過の後火災信号を制御盤Cに出力し、図
示しない警報装置が起動し火災警報が発生する。The delay device of the flowing water detecting means F1 is activated again by the fluid force from the primary side to the secondary side. The flowing water detection means
F1 outputs a fire signal to the control panel C after the delay time has elapsed, and an alarm device (not shown) is activated to generate a fire alarm.

【００６１】さらに火災感知から所定時間が経過すると
復帰用タイマーT1が復帰信号を出力する。復帰用タイマ
ーT1の遅延時間としてここでは二次側配管の充水時間、
スプリンクラーヘッドHが作動するまでの時間、スプリ
ンクラーヘッドの放水時間とを考慮し、さらに余裕を持
って算出された時間、例えば20分〜30分程度の時間を設
定している。Further, when a predetermined time has elapsed from the detection of fire, the reset timer T1 outputs a reset signal. As the delay time of the reset timer T1, here is the filling time of the secondary side piping,
In consideration of the time until the sprinkler head H operates and the water discharge time of the sprinkler head, a time calculated with a further margin, for example, a time of about 20 to 30 minutes is set.

【００６２】復帰信号が出力されると制御盤Cは予作動
式流水検知装置V1の起動弁F1を閉止し、火災感知器Cの
火災信号を初期化する。起動弁１７を閉塞することで制
御室２３内の圧力が高まり、主弁体２１が下降する。主
弁体２１が弁座２０に着座し、連通口１９が閉塞される
ことで一次側から二次側への消火水の流水が停止する。When the return signal is output, the control panel C closes the starting valve F1 of the pre-operation type water flow detection device V1 and initializes the fire signal of the fire detector C. By closing the start valve 17, the pressure in the control chamber 23 increases and the main valve body 21 descends. When the main valve body 21 is seated on the valve seat 20 and the communication port 19 is closed, the flow of fire extinguishing water from the primary side to the secondary side is stopped.

【００６３】その後二次側配管内に残留した消火水は予
作動式流水検知装置V１の二次側に設置されている排水
手段Dであるオリフィスより予作動式流水検知装置V1の
外部へと排水される。After that, the fire extinguishing water remaining in the secondary side pipe is discharged to the outside of the pre-operation type running water detection device V1 from the orifice which is the drainage means D installed on the secondary side of the pre-operation type running water detection device V1. To be done.

【００６４】次に火災感知器Sが誤報を発生した場合に
ついて説明する。火災感知器Sからの火災信号が誤報で
あっても、制御盤Cは起動弁１７の開放信号と復帰用タ
イマーT1の起動信号を出力し、二次側配管内は充水され
る。Next, a case where the fire detector S generates a false alarm will be described. Even if the fire signal from the fire detector S is a false alarm, the control panel C outputs the opening signal of the starting valve 17 and the starting signal of the reset timer T1, and the secondary side piping is filled with water.

【００６５】二次側が充水された後は一次側から二次側
に流れる流量はわずかに排水手段Dから排水される量だ
けであるため流水検知手段F1の弁体１０１が弾発体１０
３の押圧力により上方に移動する。このとき遅延装置１
０６の接点が開放され、遅延装置が解除される。火災感
知器からの火災信号が誤報であった場合は、その後火災
の熱によりスプリンクラーヘッドが作動することはな
い。このため、所定時間が経過しても流水検知手段から
流水信号が出力することはない。その後所定時間TIが経
過することで、復帰用タイマーが復帰信号を出力し、上
述の復帰手順で二次側配管内の消火水が放出され元の待
機状態へと復帰する。After the secondary side is filled with water, the flow rate flowing from the primary side to the secondary side is only the amount discharged from the drainage means D, so that the valve body 101 of the flowing water detecting means F1 is the elastic body 10.
It moves upward due to the pressing force of 3. At this time, the delay device 1
The contact of 06 is opened and the delay device is released. If the fire signal from the fire detector is a false alarm, then the heat of the fire will not activate the sprinkler head. Therefore, the running water signal is not output from the running water detection means even after the lapse of a predetermined time. After that, when the predetermined time TI elapses, the return timer outputs a return signal, and the fire extinguishing water in the secondary side pipe is discharged by the above-described return procedure, and the original standby state is restored.

【００６６】本発明の予作動式流水検知装置に使用する
消火薬剤として水を用いた場合について説明してきた
が、水だけでなく、泡消火薬剤などを用いることも可能
である。Although the case where water is used as the fire extinguishing agent used in the pre-operation type running water detection apparatus of the present invention has been described, it is possible to use not only water but also foam extinguishing agent.

【００６７】又、本発明の復帰手段は復帰用タイマーT1
を用いて自動的に行ったが、二次側の消火水は起動弁１
７を閉止するだけで排出され、煩雑な作業がいらないた
め手動で復帰操作を行っても容易に復帰が行うことが出
来る。The resetting means of the present invention is a resetting timer T1.
The fire extinguishing water on the secondary side was activated by the start valve 1.
It is discharged only by closing 7, and since complicated work is not required, it can be easily restored even if a manual return operation is performed.

【００６８】[0068]

【発明の効果】以上説明してきたように本発明の無圧式
予作動式消火設備は、空圧式の水損防止方法と、充水式
の簡易さの両方の特徴を無圧式予作動消火設備により提
供することで、スプリンクラーヘッドが暴発した際に水
損を被ることがない予作動式消火設備を加圧手段などの
複雑な機器を用いることなく簡易に構成することが出来
る。さらに排水手段を設置することで感知器が誤報を発
生したときの復帰を容易にすることが出来る。上記構成
とすることにより安価で保守・点検が容易でかつ信頼性
の高い予作動式消火設備を極めて簡易に構成できるとい
った優れた特徴をもった予作動式消火設備である。As described above, the pressureless pre-operation fire extinguishing equipment of the present invention has the features of both the pneumatic type water damage prevention method and the simplicity of the water filling type by the pressureless pre-operation fire extinguishing equipment. By providing it, the pre-operation type fire extinguishing equipment which does not suffer water loss when the sprinkler head explodes can be easily configured without using complicated equipment such as pressurizing means. Furthermore, by installing drainage means, it is possible to facilitate the recovery when a false alarm occurs in the sensor. With the above-mentioned structure, the pre-operation type fire extinguishing equipment has an excellent feature that the pre-operation type fire extinguishing equipment which is inexpensive, easy to maintain and inspect, and highly reliable can be constructed very easily.

【図面の簡単な説明】[Brief description of drawings]

【図１】本発明の無圧式予作動式消火設備の系統図FIG. 1 is a system diagram of a pressureless pre-operation type fire extinguishing facility of the present invention.

【図２】図１の無圧式予作動式消火設備に用いられる予
作動式流水検知装置V1の断面図FIG. 2 is a sectional view of a pre-operation type running water detection device V1 used in the pressureless pre-operation type fire extinguishing equipment of FIG.

【図３】本発明の無圧式予作動式消火設備の火災発生時
のフローFIG. 3 is a flow chart when a fire occurs in the pressureless pre-operation fire extinguishing equipment of the present invention

【図４】本発明の無圧式予作動式消火設備の感知器誤作
動時のフローFIG. 4 is a flow chart when a sensor malfunctions in the pressureless pre-operation type fire-fighting equipment of the present invention.

【図５】本発明の無圧式予作動式消火設備の復帰処理の
フローFIG. 5 is a flow chart of the restoration process of the pressureless pre-operation fire extinguishing equipment of the present invention.

【符号の説明】[Explanation of symbols]

２ 隔壁 ３ 一次側 ４ 二次側 １１ シリンダー １２ 蓋部材 １５ 孔 １７ 起動弁 １８ 感知ライン １９ 連通口 ２０ 弁座 ２１ 主弁体 ２３ 制御室 ２６ 圧縮バネ ２７ フランジ ３０ バタフライ弁 １０１ 弁体 １０２ 支柱 １０３ 弾発体 １０４ 弾発体 １０５ 接点 １０６ 遅延装置 Ｃ 制御装置 Ｈ スプリンクラーヘッド Ｐ ポンプ Ｓ 火災感知器 Ｖ１ 予作動式流水検知装置 Ｆ１ 流水検知手段 Ｗ 水源 D 排水手段 2 partitions 3 primary side 4 Secondary side 11 cylinders 12 Lid member 15 holes 17 Start valve 18 sensing lines 19 Communication port 20 seat 21 Main valve body 23 Control room 26 Compression spring 27 flange 30 butterfly valve 101 valve body 102 props 103 bullet 104 projectile 105 contacts 106 delay device C control device H sprinkler head P pump S fire detector V1 Pre-operated flow detector F1 running water detection means W water source D drainage means

Claims (5)

【特許請求の範囲】[Claims] 【請求項１】火災発生時の熱を感知し消火薬剤を放射す
るスプリンクラーヘッドと、火災を感知し制御盤に火災
信号を伝達する火災感知器と、火災信号や起動弁の開
閉、火災警報の発信など行う制御盤と、消火薬剤を待機
させる水源、消火薬剤を二次側へ送付する加圧送水装置
と、火災感知器の火災警報により起動する起動弁、流水
検知手段を有する予作動式流水検知装置と、二次側に大
気圧開放手段、とを有する乾式の無圧式予作動式消火設
備であって、該予作動式消火設備の二次側に消火薬剤の
流水を検出する流水検知手段と設置し、火災感知器の起
動と流水検知手段の流水信号のＡＮＤ条件により火災警
報を発生することを特徴とする無圧式予作動式消火設
備。1. A sprinkler head that detects heat when a fire occurs and emits a fire extinguishing agent, a fire detector that detects a fire and transmits a fire signal to a control panel, a fire signal, opening / closing of a start valve, and a fire alarm. Pre-running running water that has a control panel that sends a signal, a water source that holds the fire extinguishing agent on standby, a pressurized water supply device that sends the fire extinguishing agent to the secondary side, a start valve that is activated by the fire alarm of the fire detector, and water flow detection means. A dry type pressureless pre-operation fire extinguishing equipment having a detection device and an atmospheric pressure releasing means on the secondary side, and running water detection means for detecting running water of a fire extinguishing agent on the secondary side of the pre-operation fire extinguishing equipment. A pressureless pre-acting fire extinguisher system, which is installed and generates a fire alarm according to the AND condition of the activation of the fire detector and the running water signal of the running water detection means. 【請求項２】前記大気圧開放手段に非火災時に二次側配
管内の消火薬剤を排出し消火設備の復帰をおこなう復帰
手段を設置したことを特徴とする請求項１記載の無圧式
予作動消火設備。2. The pressureless pre-operation according to claim 1, wherein the atmospheric pressure releasing means is provided with a returning means for discharging a fire extinguishing agent in the secondary side pipe to return the fire extinguishing equipment when there is no fire. Fire extinguishing equipment. 【請求項３】無圧式予作動式消火設備の大気圧開放手段
は予作動式流水検知装置に設置された小孔であることを
特徴とする請求項１または２記載の無圧式予作動消火設
備。3. The pressureless pre-operated fire extinguishing equipment according to claim 1, wherein the atmospheric pressure releasing means of the pressureless pre-operated fire extinguishing equipment is a small hole provided in the pre-operated running water detection device. . 【請求項４】前記予作動式消火設備の予作動式流水検知
装置は流水検知手段、および排水手段の両方、もしくは
いずれかを内蔵していることを特徴とする請求項１から
３記載の無圧式予作動式消火設備。4. The pre-operation type running water detection device for the pre-operation type fire extinguishing facility has both or one of the running water detection means and the drainage means built therein. Pre-pressurized fire extinguishing equipment. 【請求項５】前記所定時間とはスプリンクラーヘッドの
最大放水時間と消火薬剤の充填時間を足し合わせたもの
であることを特徴とする請求項１から４記載の無圧式予
作動式消火設備。5. The pressureless pre-actuated fire extinguishing equipment according to claim 1, wherein the predetermined time is a sum of the maximum water discharge time of the sprinkler head and the filling time of the extinguishing agent.