JP3394991B2 - Sprinkler fire extinguishing equipment - Google Patents
Sprinkler fire extinguishing equipmentInfo
- Publication number
- JP3394991B2 JP3394991B2 JP26698193A JP26698193A JP3394991B2 JP 3394991 B2 JP3394991 B2 JP 3394991B2 JP 26698193 A JP26698193 A JP 26698193A JP 26698193 A JP26698193 A JP 26698193A JP 3394991 B2 JP3394991 B2 JP 3394991B2
- Authority
- JP
- Japan
- Prior art keywords
- water
- valve body
- valve
- sprinkler
- fire extinguishing
- 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
Landscapes
- Fire-Extinguishing By Fire Departments, And Fire-Extinguishing Equipment And Control Thereof (AREA)
Description
【０００１】[0001]
【産業上の利用分野】この発明は、スプリンクラ消火設
備に関するもので、特に、流水検知装置を備えた住宅用
のスプリンクラ消火設備に関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a sprinkler fire extinguishing equipment, and more particularly to a sprinkler fire extinguishing equipment for a house equipped with a water flow detection device.
【０００２】[0002]
【従来の技術】従来例の住宅用のスプリンクラ消火設備
では、水道などの水源に建物配管を接続し、該建物配管
に台所、洗面所などの給水栓を設けるとともに、この建
物配管にスプリンクラ配管を接続し、該スプリンクラ配
管に常時閉の末端給水栓、スプリクラヘッド、そして、
弁体の開閉により流水を検知する流水検知装置を配設し
ている。2. Description of the Related Art In a conventional sprinkler fire extinguishing system for a house, a building pipe is connected to a water source such as a water supply, and the building pipe is provided with a water tap such as a kitchen or a washroom. Connected to the sprinkler piping, a normally closed end hydrant, a sprinkler head, and
A running water detection device for detecting running water is provided by opening and closing the valve body.
【０００３】そして、火災の発生によりスプリンクラ配
管のスプリンクラヘッドが開き放水を開始すると、該流
水検知装置の弁体が水圧により押し上げられて開弁し、
流水が報知される。そして、消火作業終了後スプリンク
ラ配管の基端に設けられた基弁（図示せず）を閉じる
と、弁体か゛降下して着座し該流水検知装置は閉弁す
る。When a sprinkler head of the sprinkler pipe is opened to start water discharge due to the occurrence of fire, the valve body of the flowing water detection device is pushed up by water pressure to open the valve.
Running water is notified. When the base valve (not shown) provided at the base end of the sprinkler pipe is closed after the fire extinguishing work, the valve body is lowered and seated, and the flowing water detection device is closed.
【０００４】[0004]
【発明が解決しようとする課題】従来例では、開放中の
給水栓を急激に閉じると、今まで流れていた配管内の水
流が急激に停止するので、水撃（ウオーターハンマー）
が発生するが、この水撃はスプリンクラ配管内に順方
向、即ち、弁体を開く方向に伝わる。そのため、この水
撃は流水検知装置を通過しスプリンクラ配管内を通って
末端給水栓に到達する。In the conventional example, when the water tap that is open is suddenly closed, the water flow in the pipe that has been flowing so far is suddenly stopped, so that a water hammer (water hammer) is used.
However, this water hammer is transmitted in the sprinkler pipe in the forward direction, that is, in the direction in which the valve element is opened. Therefore, this water hammer passes through the water flow detection device, passes through the sprinkler pipe, and reaches the terminal water tap.
【０００５】この順方向の水撃は、末端給水栓に衝突し
て水撃反射波となり、逆方向の水撃となってスプリンク
ラ配管内を流れ、弁体を急降下させて弁体を閉じさせ
る。そのため、弁体と弁座が激しく衝突すると共に、水
撃反射波が急激に停止されるので、衝撃音が発生する。The water hammer in the forward direction collides with the terminal water tap to form a water hammer reflected wave, which causes a water hammer in the opposite direction to flow in the sprinkler pipe, causing the valve body to suddenly descend and close the valve body. Therefore, the valve body and the valve seat violently collide with each other, and the water hammer reflected wave is suddenly stopped, so that an impact sound is generated.
【０００６】この発明は、上記事情に鑑み流水検知装置
の衝撃音の発生を防止することを目的とする。The present invention has been made in view of the above circumstances, and an object thereof is to prevent generation of an impact sound of a flowing water detecting device.
【０００７】[0007]
【課題を解決するための手段】この発明は、弁体の開閉
により流水を検知する流水検知装置をスプリンクラ配管
内に配設するとともに、該流水検知装置に閉弁時に前記
弁体の一次側と二次側とを連通せしめる挿通手段を設け
ること、により前記目的を達成しようとするものであ
る。According to the present invention, a flowing water detecting device for detecting flowing water by opening and closing a valve body is provided in a sprinkler pipe, and the flowing water detecting device is provided with a primary side of the valve body when the valve is closed. It is intended to achieve the above object by providing an insertion means for communicating with the secondary side.
【０００８】[0008]
【作用】開放中の給水栓を急激に閉じると、今まで流れ
ていた配管内の水流が急激に停止するので、水撃（ウオ
ーターハンマー）が発生するが、この水撃はスプリンク
ラ配管内に順方向、即ち、弁体を開く方向に伝わる。そ
のため、この水撃は流水検知装置を通過しスプリンクラ
配管内を通って末端給水栓に到達する。[Function] When the water tap that is open is closed abruptly, the water flow in the pipe that has been flowing until then suddenly stops, causing a water hammer (water hammer). Direction, that is, the direction of opening the valve body. Therefore, this water hammer passes through the water flow detection device, passes through the sprinkler pipe, and reaches the terminal water tap.
【０００９】この順方向の水撃は、末端給水栓に衝突し
て水撃反射波となり、逆方向の水撃となってスプリンク
ラ配管内を流れ、弁体を降下させる。このとき、挿通手
段を介して弁体の２次側は１次側に連通しているので、
水撃反射波の一部は建物配管に戻されるとともに、その
他はスプリンクラ配管内を末端給水栓に向かって流れ
る。The water hammer in the forward direction collides with the terminal water tap to form a water hammer reflected wave, which causes a water hammer in the opposite direction to flow in the sprinkler pipe and lower the valve body. At this time, since the secondary side of the valve body communicates with the primary side via the insertion means,
A part of the water hammer reflected wave is returned to the building piping, and the other flows in the sprinkler piping toward the terminal hydrant.
【００１０】[0010]
【実施例】この発明の第１実施例を添付図面により説明
する。図３に示す様に、水道本管１に建物配管２が接続
され、該建物配管２には、台所、洗面所、風呂等の給水
栓３と水道メータ４とが設けられている。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A first embodiment of the present invention will be described with reference to the accompanying drawings. As shown in FIG. 3, a building pipe 2 is connected to a water main 1, and the building pipe 2 is provided with a faucet 3 for a kitchen, a washroom, a bath, etc. and a water meter 4.
【００１１】建物配管２に流水検知装置５を介してスプ
リンクラ配管６を設け、該スプリンクラ配管６にスプリ
ンクラヘッド７を設けるとともに、その端部に常時閉の
末端給水栓８を設ける。A sprinkler pipe 6 is provided in the building pipe 2 via a water flow detecting device 5, a sprinkler head 7 is provided in the sprinkler pipe 6, and a normally closed terminal water supply plug 8 is provided at an end thereof.
【００１２】流水検知装置５は、図１、図２に示す様
に、弁本体１０に摺動自在に設けられた弁体１１と、該
弁体１１の下面に設けられた緩衝部材、例えば、ゴム等
の弾性部材１２と、弁座１３と、該弁座１３の中央部に
突出する突起部材１４と、を備えている。As shown in FIGS. 1 and 2, the water flow detecting device 5 has a valve body 11 slidably mounted on a valve body 10 and a buffer member provided on the lower surface of the valve body 11, for example, An elastic member 12 made of rubber or the like, a valve seat 13, and a protrusion member 14 projecting to the center of the valve seat 13 are provided.
【００１３】この突起部材１４は、閉弁時に弁体１１と
当接し、弁体１１を弁座１３から間隙ｔだけ離間させ、
一次側Ｆと二次側Ｓとを連通させる所謂挿通手段であ
る。この間隙ｔは、流水検知装置５が所定の流水、例え
ば、２８リットル／分を検知できるように必要に応じて
調整され、逆流時における流量が順方向のそれに比べ小
量、例えば、１リットル／分となるように調整される。The projection member 14 contacts the valve body 11 when the valve is closed, and separates the valve body 11 from the valve seat 13 by a gap t.
This is a so-called insertion means that allows the primary side F and the secondary side S to communicate with each other. The gap t is adjusted as necessary so that the flowing water detection device 5 can detect a predetermined flowing water, for example, 28 l / min, and the flow rate at the time of reverse flow is smaller than that in the forward direction, for example, 1 l / min. Adjusted to be minutes.
【００１４】次に、本実施例の作動について説明する。
給水栓３を開放すると建物配管２内に矢印Ａ２方向、即
ち順方向、の水が流れ、給水栓３から放出される。この
時流水検知装置５は閉弁しており、スプリンクラ配管６
内に水流は発生しない。Next, the operation of this embodiment will be described.
When the water tap 3 is opened, water flows in the building pipe 2 in the direction of arrow A2, that is, in the forward direction, and is discharged from the water tap 3. At this time, the running water detection device 5 is closed, and the sprinkler pipe 6
There is no water flow inside.
【００１５】給水栓３を急激に閉じると、水撃が発生す
るが、この水撃は矢印Ａ３方向に伝わるで、流水検知装
置５の弁体１１は押し上げられて開弁する。そのため、
該水撃は流水検知装置５の弁体１１の一次側Ｆから二次
側Ｓを通って、スプリンクラ配管６内に伝播し、末端給
水栓８に到達する。When the water tap 3 is closed abruptly, a water hammer occurs, but this water hammer is transmitted in the direction of arrow A3, and the valve body 11 of the water flow detecting device 5 is pushed up to open the valve. for that reason,
The water hammer propagates from the primary side F of the valve body 11 of the flowing water detection device 5 through the secondary side S into the sprinkler pipe 6, and reaches the end water tap 8.
【００１６】末端給水栓８に到達した水撃は反射して水
撃反射波となり、スプリンクラ配管６内を逆流し、矢印
Ａ６方向に流れ、弁体１１の上部に当たり、該弁体１１
を降下させ図２に示す様に突起部材１４に衝突させる。The water hammer reaching the end water tap 8 is reflected and becomes a water hammer reflected wave, which flows backward in the sprinkler pipe 6 and flows in the direction of arrow A6, hits the upper portion of the valve body 11, and the valve body 11
Is lowered and collided with the projecting member 14 as shown in FIG.
【００１７】この時、弁体１１は緩衝部材１２を介して
突起部材１４に衝突するので、両者の衝突による衝撃音
は発生しない。又、流水検知装置５の一次側Ｆと二次側
Ｓとは連通しているので、水撃反射波の一部は徐々に小
量ずつ建物配管２に戻される。そのため、弁体１１の二
次側圧が一次側に逃げるので、水撃反射波が弁体１１に
当たった際に、著しく圧力が上昇することがない。At this time, since the valve body 11 collides with the projecting member 14 via the cushioning member 12, no impact noise is generated due to the collision of both. Further, since the primary side F and the secondary side S of the water flow detection device 5 are in communication with each other, a part of the water hammer reflected wave is gradually returned to the building pipe 2 in small amounts. Therefore, the secondary side pressure of the valve body 11 escapes to the primary side, so that when the water hammer reflected wave hits the valve body 11, the pressure does not rise significantly.
【００１８】又、弁体１１により一次側Ｆへの流出を妨
げられた残りの水撃反射波は、スプリンクラ配管６内を
矢印Ａ３方向に流されながら、スプリンクラ配管の摩擦
損失等によりエネルギが吸収される。又、建物配管２に
された水撃反射波は同様に建物配管２の摩擦損失などに
より吸収される。尚、弁座の外周に沿ってゴムパッキン
を設け、弁座と弁体の隙間をなくすようにしたものが従
来よりあるが、このような弁では弁体が降下した際に弁
座のゴムパッキンにぴったりとはまってしまい抜けなく
なるという問題が生じることがある。しかし、本実施例
においてはゴムを弁座の外周に設けずに弁体の中央部に
設けているので、このような不具合を生じることがな
い。The remaining water hammer reflected wave, which has been prevented from flowing out to the primary side F by the valve element 11, is absorbed by energy due to friction loss of the sprinkler pipe while flowing in the sprinkler pipe 6 in the direction of arrow A3. To be done. Further, the water hammer reflected wave applied to the building pipe 2 is also absorbed by the friction loss of the building pipe 2 and the like. Conventionally, rubber packing has been provided along the outer periphery of the valve seat to eliminate the gap between the valve seat and the valve body.However, in such a valve, the rubber packing of the valve seat when the valve body descends. There may be a problem that it fits tightly in and cannot be pulled out. However, in this embodiment, the rubber is not provided on the outer periphery of the valve seat but is provided on the central portion of the valve body, so that such a problem does not occur.
【００１９】流水検知装置５には、流水検知機能が設け
てあり、流水により弁体１１が開放すると、弁体１１に
埋設した磁石Ｇが接点に近接し、リードスイッチＳＷを
オンさせ、コントロールボックスＣ内の制御部に流水信
号を送出する。なお、所定時間、例えば５秒間スイッチ
がオンした時に警報を発するように蓄積をかけているの
で、水撃により弁体１１が開放した時に一時的にスイッ
チＳＷがオンしても、コントロールボックスＣによる警
報動作は行なわれない。コントロールボックスＣは流水
検知装置５の他に、表示装置、音響装置の警報装置をそ
なえており、流水検知装置５が所定時間以上動作した時
には警報動作をするものである。The running water detecting device 5 is provided with a running water detecting function. When the valve body 11 is opened by running water, the magnet G embedded in the valve body 11 comes close to the contact, the reed switch SW is turned on, and the control box is opened. A running water signal is sent to the control unit in C. Since the accumulation is performed so that an alarm is issued when the switch is turned on for a predetermined time, for example, 5 seconds, even if the switch SW is temporarily turned on when the valve body 11 is opened by a water hammer, the control box C is used. No alarm action is taken. The control box C is provided with a warning device such as a display device and a sound device in addition to the flowing water detection device 5, and performs an alarm operation when the flowing water detection device 5 operates for a predetermined time or longer.
【００２０】末端給水栓８の使用による流水と、スプリ
ンクラヘッドの放水による流水とを判別するため、通常
は末端給水栓８の一次側にも補助流水検知装置が必要と
なるが、本発明を用いると該補助流水検知装置を設けな
くても前記判別が可能である。即ち、末端給水栓８から
の使用水量が少なく、その一次側にオリフィス等で流量
を絞るようにすれば、弁体が閉止時でもその弁体と弁座
の間に僅かな隙間があるため、流水検知装置５の弁体１
１が上昇することなく、必要量の水が流れるので、該流
水検知装置５は作動しない。そのため、特に末端給水栓
用の補助流水検知装置を設ける必要がなくなる。In order to discriminate between running water due to the use of the end water tap 8 and running water due to the sprinkler head, normally an auxiliary water flow detection device is also required on the primary side of the end water tap 8, but the present invention is used. Therefore, the determination can be performed without providing the auxiliary water flow detection device. That is, if the amount of water used from the terminal water tap 8 is small and the flow rate is restricted to the primary side by an orifice or the like, there is a slight gap between the valve body and the valve seat even when the valve body is closed. Valve body 1 of water flow detection device 5
Since the required amount of water flows without 1 rising, the flowing water detection device 5 does not operate. Therefore, it is not necessary to provide an auxiliary water flow detection device for the terminal water tap.
【００２１】この発明の第２実施例を図４により説明す
る。この実施例が第１実施例と異なる点は、弁座１３に
弁体１１と当接する複数の突起部材２０を配設し、該弁
座１３の内周面１３ａと弁体１１の外周面１１ａとの間
に閉弁時に一次側と二次側とを連通せしめる挿通手段２
４を形成したことである。A second embodiment of the present invention will be described with reference to FIG. This embodiment is different from the first embodiment in that a plurality of protruding members 20 that abut against the valve body 11 are disposed on the valve seat 13, and the inner peripheral surface 13a of the valve seat 13 and the outer peripheral surface 11a of the valve body 11 are arranged. Insertion means 2 for communicating between the primary side and the secondary side when closing the valve
4 is formed.
【００２２】この発明の第３実施例を図５により説明す
る。この発明の第１実施例と異なる点は閉弁時に弁体１
１の外側に突出する複数の貫通孔３０を弁座１３に形成
し、この貫通孔３０を介して閉弁時に一次側と二次側と
を連通せしめたことである。A third embodiment of the present invention will be described with reference to FIG. The difference from the first embodiment of the present invention is that the valve body 1 is closed when the valve is closed.
That is, a plurality of through holes 30 projecting outside 1 are formed in the valve seat 13, and the primary side and the secondary side are made to communicate with each other through the through holes 30 when the valve is closed.
【００２３】この発明の第４実施例を図６により説明す
る。この発明の第３実施例と異なる点は、弁体１１に挿
通孔４０を形成し、閉弁時に一次側と二次側とを連通さ
せたことである。A fourth embodiment of the present invention will be described with reference to FIG. The difference from the third embodiment of the present invention is that the valve body 11 is formed with an insertion hole 40 so that the primary side and the secondary side communicate with each other when the valve is closed.
【００２４】なお、第１実施例では緩衝部材１２を弁体
１１に設けたが、この緩衝部材１２は、突起部材１４の
頭部に設けても良いことは勿論である。Although the buffer member 12 is provided on the valve body 11 in the first embodiment, it goes without saying that the buffer member 12 may be provided on the head of the projection member 14.
【００２５】前記実施例では、流水検知装置の弁体は、
自重により閉止する様に構成されているが、ばね等を用
いて閉止する様にしても良い。In the above embodiment, the valve body of the water flow detecting device is
Although it is configured to be closed by its own weight, it may be configured to be closed by using a spring or the like.
【００２６】[0026]
【発明の効果】この発明は、以上の様に、閉弁時におい
て一次側と二次側とが連通するので、水撃による衝撃音
の発生を防止することができる。As described above, according to the present invention, since the primary side and the secondary side communicate with each other when the valve is closed, it is possible to prevent the generation of impact noise due to a water hammer.
【図１】本発明の第１実施例を示す縦断面図で、開弁状
態を示す図である。FIG. 1 is a vertical sectional view showing a first embodiment of the present invention, showing a valve open state.
【図２】第１実施例の閉弁状態を示す縦断面図である。FIG. 2 is a vertical sectional view showing a valve closed state of the first embodiment.
【図３】第１実施例の動作を説明するシステム図であ
る。FIG. 3 is a system diagram illustrating the operation of the first embodiment.
【図４】第２実施例を示す横断面図である。FIG. 4 is a transverse sectional view showing a second embodiment.
【図５】第３実施例を示す横断面図である。FIG. 5 is a transverse sectional view showing a third embodiment.
【図６】第４実施例を示す縦断面図である。FIG. 6 is a vertical sectional view showing a fourth embodiment.
２ 建物配管 ３ 給水栓 ５ 流水検知装置 ６ スプリンクラ配管 11 弁体 12 緩衝部材 13 弁座 14 挿通手段 2 building piping 3 water tap 5 Water flow detector 6 sprinkler piping 11 valve 12 cushioning material 13 valve seat 14 Insertion method
───────────────────────────────────────────────────── フロントページの続き (56)参考文献 特開 昭50−49892（ＪＰ，Ａ) 実開 昭58−151749（ＪＰ，Ｕ) (58)調査した分野(Int.Cl.7，ＤＢ名) A62C 27/00 - 39/00 ─────────────────────────────────────────────────── ─── Continuation of the front page (56) References JP-A-50-49892 (JP, A) Actual development Sho-58-151749 (JP, U) (58) Fields investigated (Int.Cl. 7 , DB name) A62C 27/00-39/00
Claims (4)
装置をスプリンクラ配管内に配設するとともに、該流水
検知装置に閉弁時に前記弁体の一次側と二次側とを連通
せしめる挿通手段を設けたことを特徴とするスプリンク
ラ消火設備。1. A running water detection device for detecting running water by opening and closing a valve body is provided in a sprinkler pipe, and the running water detection device is inserted so that the primary side and the secondary side of the valve body can communicate with each other when the valve is closed. Sprinkler fire extinguishing equipment characterized by having means.
緩衝部材を設けたことを特徴とする請求項１記載のスプ
リンクラ消火設備。2. The sprinkler fire extinguishing system according to claim 1, wherein a shock absorbing member is provided on at least one of the valve body and the valve seat.
とを特徴とする請求項１記載のスプリンクラ消火設備。3. The sprinkler fire extinguishing equipment according to claim 1, wherein the inserting means is a through hole provided in the valve seat.
とを特徴とする請求項１記載のスプリンクラ消火設備。4. The sprinkler fire extinguishing equipment according to claim 1, wherein the insertion means is an insertion hole provided in the valve body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP26698193A JP3394991B2 (en) | 1993-10-26 | 1993-10-26 | Sprinkler fire extinguishing equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP26698193A JP3394991B2 (en) | 1993-10-26 | 1993-10-26 | Sprinkler fire extinguishing equipment |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH07116282A JPH07116282A (en) | 1995-05-09 |
| JP3394991B2 true JP3394991B2 (en) | 2003-04-07 |
Family
ID=17438401
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP26698193A Expired - Fee Related JP3394991B2 (en) | 1993-10-26 | 1993-10-26 | Sprinkler fire extinguishing equipment |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3394991B2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19948324C2 (en) * | 1999-10-07 | 2001-08-09 | Fogtec Brandschutz Gmbh & Co | Fire extinguishing device |
-
1993
- 1993-10-26 JP JP26698193A patent/JP3394991B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPH07116282A (en) | 1995-05-09 |
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