JPH06105926A - Sprinkler fire extinguishing equipment - Google Patents
Sprinkler fire extinguishing equipmentInfo
- Publication number
- JPH06105926A JPH06105926A JP25862792A JP25862792A JPH06105926A JP H06105926 A JPH06105926 A JP H06105926A JP 25862792 A JP25862792 A JP 25862792A JP 25862792 A JP25862792 A JP 25862792A JP H06105926 A JPH06105926 A JP H06105926A
- Authority
- JP
- Japan
- Prior art keywords
- pressure
- valve
- secondary side
- pipe
- 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.)
- Granted
Links
Landscapes
- Fire-Extinguishing By Fire Departments, And Fire-Extinguishing Equipment And Control Thereof (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は、スプリンクラ消火設備
に関する。FIELD OF THE INVENTION The present invention relates to a sprinkler fire extinguishing facility.
【０００２】[0002]
【従来の技術】スプリンクラ消火設備は、従来から湿式
や乾式、予作動式等の種々のシステム系統が利用されて
いる。2. Description of the Related Art For sprinkler fire extinguishing equipment, various system systems such as wet type, dry type and pre-operated type have been conventionally used.
【０００３】従来の最も一般的な、閉鎖型スプリンクラ
ヘッドを用いる湿式消火設備では、各警戒地区に設けた
閉鎖型スプリンクラヘッドの末端まで加圧水を常時充填
しておくものであり、火災検出と同時に散水動作をとる
ことができ、最も一般的な、ビル等に用いられる設備で
ある。In the most general conventional wet type fire extinguishing equipment using a closed type sprinkler head, pressurized water is always filled up to the end of the closed type sprinkler head provided in each warning area. It is a facility that can operate and is most commonly used in buildings.
【０００４】閉鎖型スプリンクラ消火設備は、配管の端
末まで加圧水が常時充填されているので、物が当たる等
による事故でスプリンクラヘッドが開放してしまったと
きには、加圧された消火水が大量に放出されるととも
に、火災でないことを確認してポンプを停止するまで、
散水が続けられ、大きな水損事故となってしまう。In the closed type sprinkler fire extinguishing system, pressurized water is constantly filled up to the end of the pipe, so when the sprinkler head is opened due to an accident such as hitting something, a large amount of pressurized fire water is released. And stop the pump after confirming that it is not a fire.
Watering continues, resulting in a major water loss accident.
【０００５】また、火災時には、スプリンクラヘッドが
設けられている二次側の配管に開放弁の開放により一次
側と同じ高圧の消火水が流れ込む。このため、二次側の
配管や弁等に一次側と同等の高圧に耐えるものを使用す
る必要がある。このことは、二次側の配管や弁等がコス
ト高となって、スプリンクラ消火設備の普及を妨げる要
因になっている。Further, at the time of fire, the same high-pressure fire extinguishing water as that on the primary side flows into the secondary side pipe provided with the sprinkler head by opening the release valve. For this reason, it is necessary to use pipes, valves, etc. on the secondary side that can withstand the same high pressure as the primary side. This increases the cost of piping and valves on the secondary side, which is a factor that prevents the spread of sprinkler fire extinguishing equipment.
【０００６】[0006]
【発明が解決しようとする課題】このような従来のスプ
リンクラ消火設備の問題を解決するため、スプリンクラ
ヘッドの動作とともに消火に効率のよい圧力での消火水
の放出ができるように、二次側の配管内を所定圧に常に
調整する設備が種々提案されている。In order to solve the problem of the conventional sprinkler fire extinguishing equipment, it is necessary to discharge the fire extinguishing water at a pressure efficient for extinguishing the fire along with the operation of the sprinkler head. Various types of equipment have been proposed for constantly adjusting the pressure inside the pipe to a predetermined pressure.
【０００７】しかし、温度変化により二次側配管内の圧
力が降下した場合には調圧手段により所定圧に調整する
が、圧力が上昇した場合には、降下させる必要があり、
所定圧を遙に越えてしまうと圧力計を破壊したり、放水
時に高圧放水を行ってしまう。However, when the pressure in the secondary side pipe decreases due to temperature change, the pressure adjusting means adjusts it to a predetermined pressure, but when the pressure rises, it is necessary to decrease it.
If the pressure exceeds a predetermined level, the pressure gauge will be destroyed or high pressure water will be discharged.
【０００８】[0008]
【課題を解決するための手段】本発明は、上記の点に鑑
み、警戒地区に、複数の閉鎖型スプリンクラヘッドと、
開放弁とが設けられ、開放弁の一次側配管が消火水供給
手段に、二次側配管がスプリンクラヘッドに、それぞれ
接続され、開放弁は、一次側の消火水を所定圧に減圧調
整して二次側へ供給する調圧手段を有し、二次側配管内
の減圧を調圧手段が検出し、開放弁の弁体を開放および
開度調整するものにおいて、開放弁は、更に排水手段を
有し、二次側配管内が所定圧を越える場合に排水を行う
ことを特徴とするものである。SUMMARY OF THE INVENTION In view of the above points, the present invention provides a plurality of closed sprinkler heads in a warning area.
An open valve is provided, the primary side pipe of the open valve is connected to the fire extinguishing water supply means, and the secondary side pipe is connected to the sprinkler head.The open valve adjusts the primary side extinguishing water to a predetermined pressure. In a device that has a pressure adjusting means for supplying to the secondary side, the pressure adjusting means detects the pressure reduction in the secondary side piping, and opens and adjusts the opening degree of the valve body of the opening valve, the opening valve is further draining means. It is characterized in that the drainage is performed when the inside of the secondary side pipe exceeds a predetermined pressure.
【０００９】そして、排水手段は、所定圧近傍の圧力で
付勢された弁体を有する排水弁により構成され、該排水
弁は、二次側配管内が所定圧を越えるときに弁体が開放
するものである。The drainage means is composed of a drain valve having a valve element biased at a pressure near a predetermined pressure, and the drain valve opens when the inside of the secondary side pipe exceeds a predetermined pressure. To do.
【００１０】[0010]
【作用】消火活動に効率のよい所定の圧力に充水される
二次側配管内は、常時は調圧手段の作用により、所定圧
以下の場合には、高圧の一次圧が導入され、昇圧され
る。そして、温度上昇等により二次側配管内の圧力が高
くなった場合には、排水手段の作用により、排水弁の弁
体が開放して排水を行い、所定の圧力まで減圧すると、
排水弁の弁体は閉止して、二次側配管内は所定圧に維持
される。[Function] In the secondary side pipe, which is filled with a predetermined pressure that is efficient for fire extinguishing activities, the high-pressure primary pressure is always introduced by the function of the pressure adjusting means when the pressure is lower than the predetermined pressure. To be done. Then, when the pressure in the secondary side pipe becomes high due to a temperature rise or the like, by the action of the drainage means, the valve body of the drainage valve is opened to perform drainage, and when the pressure is reduced to a predetermined pressure,
The valve body of the drain valve is closed and the inside of the secondary side pipe is maintained at a predetermined pressure.
【００１１】[0011]
【実施例】以下、本発明の一実施例について、図面を用
いて説明する。図１は、本発明を利用したスプリンクラ
消火設備の系統図である。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings. FIG. 1 is a system diagram of a sprinkler fire extinguishing facility using the present invention.
【００１２】警戒地区の天井に設けられる閉鎖型のスプ
リンクラヘッド１は、二次側配管２を介して建物の各階
毎に設置されている開放弁３の二次側４に接続され、開
放弁３の一次側５は、一次側配管６と元弁７を介して消
火水供給手段としての加圧送水装置８に接続されてい
る。この加圧送水装置８は、同図で図示されているポン
プ９と、電路により受信盤１０に接続されたモータ１１
等の他、図示されていない通常の逆止弁や圧力空気槽等
を備えていて、水源１２の消火水を加圧供給するもので
ある。The closed-type sprinkler head 1 provided on the ceiling of the warning area is connected to the secondary side 4 of the open valve 3 installed on each floor of the building through the secondary side pipe 2, and the open valve 3 The primary side 5 is connected to a pressurized water supply device 8 as a fire extinguishing water supply means via a primary side pipe 6 and a main valve 7. This pressurized water supply device 8 includes a pump 9 shown in the figure and a motor 11 connected to a receiving board 10 by an electric path.
In addition to the above, an ordinary check valve (not shown), a pressure air tank, and the like are provided, and the fire extinguishing water from the water source 12 is supplied under pressure.
【００１３】通常では閉鎖状態であり、二次側配管２内
の減圧時に開放状態にされる開放弁３には、二次側配管
２への通水を試験する試験手段２０と、一次側配管６の
消火水を所定圧に減圧調整して二次側配管２に供給する
ための調圧手段３０と、開放弁３の急速閉鎖を行う遮断
手段５０と、二次側配管２内の圧力余剰分を排水する排
水手段６０等をユニット７０として形成し、このユニッ
ト７０内に配線される電路を外部の信号線と接続する接
続端子部７１もこのユニット７０内に設けてある。The opening valve 3 which is normally closed and is opened when the pressure in the secondary pipe 2 is depressurized includes a test means 20 for testing water flow to the secondary pipe 2 and a primary pipe. 6, pressure control means 30 for reducing the pressure of the fire-extinguishing water to a predetermined pressure and supplying it to the secondary side pipe 2, shut-off means 50 for rapidly closing the opening valve 3, and pressure surplus in the secondary side pipe 2. A drainage means 60 for draining the components is formed as a unit 70, and a connection terminal portion 71 for connecting an electric path wired in the unit 70 to an external signal line is also provided in the unit 70.
【００１４】試験手段２０は、電動式の遠隔操作試験弁
２１と、スプリンクラヘッド１の１個分の排水をする１
個試験弁２２と、スプリンクラヘッド１の５個分等を排
水する大型試験弁２３とを有している。これらの弁の一
次側は、二次側配管２から分岐された配管２４に並列に
設けられ、二次側は排水管２５に接続されている。The test means 20 drains one electric sprinkler head 1 and an electrically operated remote operated test valve 21.
It has an individual test valve 22 and a large test valve 23 for draining five sprinkler heads 1 and the like. The primary side of these valves is provided in parallel with the pipe 24 branched from the secondary side pipe 2, and the secondary side is connected to the drain pipe 25.
【００１５】遠隔操作試験弁２１は、受信盤１０からの
信号により遠隔的に操作することが可能であり、二次側
配管２内の減圧により開放弁３が開放し、後述する圧力
スイッチ７４からの信号が得られるかどうかを確認でき
る。１個試験弁２２は、その場でヘッド１個分の放水を
行え、そのときの圧力状態を圧力計７２、７３により確
認でき、開放弁３の動作が正常であることを確認でき
る。大型試験弁２３は、１個試験弁２２に比べて、大量
の消火水を放出することができ、複数ヘッドの同時開放
の場合の供給能力を確認することができる。また、放水
量が変わっても二次側配管２内が調圧されていることを
確認できる。これらの弁は目的や機能が異なり、試験手
段２０としては、その試験する目的に応じ必要な弁が設
けられていればよく、また、兼用するように構成しても
よい。The remote operation test valve 21 can be remotely operated by a signal from the receiving board 10, and the release valve 3 is opened by the pressure reduction in the secondary side pipe 2, and the pressure switch 74 described later is used. You can check whether the signal of is obtained. The one-piece test valve 22 can discharge water for one head on the spot, the pressure state at that time can be confirmed by the pressure gauges 72 and 73, and it can be confirmed that the operation of the open valve 3 is normal. The large-scale test valve 23 can discharge a large amount of fire extinguishing water as compared with the single-piece test valve 22, and can confirm the supply capacity in the case of simultaneous opening of a plurality of heads. Moreover, it can be confirmed that the pressure inside the secondary pipe 2 is regulated even if the amount of water discharged changes. These valves have different purposes and functions, and the test means 20 may be provided with necessary valves according to the purpose of the test, or may be configured to be used in combination.
【００１６】調圧手段３０は、二次側配管２の二次圧を
配管３１によりその操作室３２に導入し、開放弁３の一
次側５からの配管３３から一次圧を取り込み、フラム３
４とばね３５の調圧作用により弁体３６の開度調整を行
って、配管３７により開放弁３のシリンダ３８へその一
次圧を導入する調圧弁４０により構成されている。The pressure adjusting means 30 introduces the secondary pressure of the secondary side pipe 2 into the operation chamber 32 through the pipe 31, takes in the primary pressure from the pipe 33 from the primary side 5 of the opening valve 3, and the flam 3
4 and a spring 35 to adjust the opening degree of the valve element 36, and a pipe 37 is used to introduce a primary pressure of the primary pressure into the cylinder 38 of the release valve 3.
【００１７】この調圧弁４０は、火災時に開放弁３を開
放させる機能を有している。即ち、配管３１により操作
室３２に導入された二次側配管２内の圧力が所定圧より
も低いときは、フラム３４とばね３５の調圧作用により
弁体３６が開動作して、配管３３、３７を介して一次圧
が徐々にシリンダ３８内に導入され、ピストン４１が押
し上げられて（図面左方向）、連動する弁体４３が開放
される。二次側配管２内の圧力が所定圧よりも高いとき
は、フラム３４とばね３５の調圧作用により弁体３６が
閉動作して、一次圧の流入量が減少し、シリンダ３８内
が減圧してピストン４１が下がり（図面右方向）連動す
る弁体４３が閉動作する。The pressure regulating valve 40 has a function of opening the open valve 3 in the event of a fire. That is, when the pressure in the secondary pipe 2 introduced into the operation chamber 32 by the pipe 31 is lower than the predetermined pressure, the valve body 36 is opened by the pressure regulating action of the flam 34 and the spring 35, and the pipe 33 is opened. , 37, the primary pressure is gradually introduced into the cylinder 38, the piston 41 is pushed up (left direction in the drawing), and the interlocking valve element 43 is opened. When the pressure in the secondary side pipe 2 is higher than a predetermined pressure, the valve body 36 is closed due to the pressure regulating action of the flam 34 and the spring 35, the inflow amount of the primary pressure is reduced, and the pressure in the cylinder 38 is reduced. Then, the piston 41 is lowered (to the right in the drawing), and the valve body 43 that is interlocked is closed.
【００１８】このようにして開放弁３の開度調整が行わ
れ、二次圧を消火動作に適した所定圧、例えば二次側直
近３．５ kg/cm2 に調圧する。また、開放弁３のシリン
ダ３８は、ピストン４１の小孔４２を介して配管４４に
より二次側配管２へ連通されている。これにより、二次
側配管２内は、調圧弁４０の開放時に昇圧するので、常
時調圧弁４０の調圧作用により所定の圧力に保持され、
二次側配管２の温度変化等による圧力降下時に少量の一
次圧補給を行う。このとき、開放弁３は開放せず開放信
号はでない。同時にピストン４１の背面に圧力が流入し
て弁体４３の摺動が緩慢になるので、調圧作用が行いや
すい効果もある。In this way, the opening degree of the opening valve 3 is adjusted, and the secondary pressure is regulated to a predetermined pressure suitable for the fire extinguishing operation, for example 3.5 kg / cm 2 in the immediate vicinity of the secondary side. Further, the cylinder 38 of the release valve 3 is connected to the secondary side pipe 2 by the pipe 44 through the small hole 42 of the piston 41. As a result, the pressure inside the secondary pipe 2 is increased when the pressure regulating valve 40 is opened, so that the pressure is constantly maintained at a predetermined pressure by the pressure regulating action of the pressure regulating valve 40.
A small amount of primary pressure is replenished when the pressure drops due to temperature change of the secondary side pipe 2. At this time, the open valve 3 does not open and there is no open signal. At the same time, the pressure flows into the back surface of the piston 41, and the sliding of the valve body 43 becomes slow, so that there is an effect that the pressure adjusting action is easily performed.
【００１９】従って、火災が発生してスプリンクラヘッ
ド１が開放するときには、直ちに消火活動に適した所定
圧の放水が可能であり、二次側配管２内の減圧に伴い、
調圧弁４０の作用により開放弁３が開放し、その弁体４
３の開度が調整されることにより、二次側配管２へは、
消火活動に適した所定圧の消火水が供給される。Therefore, when a sprinkler head 1 opens due to a fire, it is possible to immediately discharge water at a predetermined pressure suitable for fire fighting activities, and as the pressure in the secondary pipe 2 decreases,
The release valve 3 is opened by the action of the pressure regulating valve 40, and the valve body 4 thereof is opened.
By adjusting the opening degree of 3 to the secondary side pipe 2,
Extinguishing water of a predetermined pressure suitable for fire fighting activities is supplied.
【００２０】遮断手段５０は、スプリンクラヘッド１が
衝撃等によって開放してしまった場合に散水を停止させ
るためのものであり、具体的には、調圧弁４０から開放
弁３のシリンダ３８につながる配管３７に設けられた常
時開状態にある電動弁５１である。この電動弁５１は、
受信盤１０からの信号をモーター等により構成されてい
る電動部５２が受け、この電動部５２の作用により弁５
１を閉止できる構成となっている。即ち、スプリンクラ
ヘッド１の誤動作の場合に、監視区域に設けられる放水
停止スイッチ５３を操作することにより、受信盤１０を
介して電動部５２へ閉止信号を送出することができる。
電動部５２は、その信号を受けて弁５１を閉動作し、そ
の結果、シリンダ３８内が小孔４２を介して減圧され、
開放弁３は閉鎖される。The shut-off means 50 is for stopping the water sprinkling when the sprinkler head 1 is opened due to an impact or the like, and specifically, a pipe connecting the pressure regulating valve 40 to the cylinder 38 of the opening valve 3. The electrically operated valve 51 provided in 37 is in a normally open state. This motor operated valve 51
A signal from the receiving board 10 is received by an electric part 52 composed of a motor and the like, and the valve 5 is operated by the electric part 52.
1 can be closed. That is, in the case of malfunction of the sprinkler head 1, by operating the water discharge stop switch 53 provided in the monitoring area, a closing signal can be sent to the electric section 52 via the receiving board 10.
The electric section 52 receives the signal and closes the valve 51, and as a result, the pressure in the cylinder 38 is reduced through the small hole 42.
The open valve 3 is closed.
【００２１】この電動弁５１の位置は、配管３７に介在
する必要はなく、シリンダ３８への加圧を遮断できれば
別の位置で構わない。そして、開放弁３に所謂減圧開の
弁を使用する場合には、電動弁がシリンダ内の減圧を遮
断することは勿論である。The position of the motor-operated valve 51 does not need to be interposed in the pipe 37, and may be another position as long as the pressure applied to the cylinder 38 can be shut off. When a so-called decompression open valve is used as the opening valve 3, it goes without saying that the electrically operated valve shuts off the decompression in the cylinder.
【００２２】更に、電動弁の位置は、開放弁３の弁体４
３の開閉に係わらず、直接一次側配管６または二次側配
管２に介在させてもよく、例えば元弁７を電動弁で構成
しても同様の効果をなす。Furthermore, the position of the motor-operated valve is determined by the valve body 4 of the open valve 3.
Regardless of whether the valve 3 is opened or closed, it may be directly interposed in the primary side pipe 6 or the secondary side pipe 2. For example, the same effect can be obtained even if the main valve 7 is composed of an electric valve.
【００２３】排水手段６０は、二次側配管２から分岐さ
れた配管２４に試験手段２０と並列に設けられ、排水管
２５に接続されている排水弁６１により構成されてい
る。排水弁６１は、配管２４から操作室６２に導入した
二次圧がフラム６３とばね６４にて設定される許容圧
（消火活動に適した所定圧を僅かに越える圧力）を越え
るときに弁体６５が開動作し、余分な二次圧を排水管２
５に排出し、二次圧を所定の消火活動に適した圧力に維
持する。従って、温度上昇や他の要因により大きく二次
側配管内２内の圧力が高くなったとしても、排水弁６１
が二次圧の過剰を検知し、二次圧を所定圧まで減圧させ
る。この排水弁６１は、ばね６４等の作用により開放す
る弁であるが、電気的に二次圧に対して開動作を行う弁
であってもよい。The drainage means 60 is provided in the pipe 24 branched from the secondary side pipe 2 in parallel with the test means 20, and is composed of a drainage valve 61 connected to the drainage pipe 25. The drain valve 61 is a valve body when the secondary pressure introduced from the pipe 24 into the operation chamber 62 exceeds the allowable pressure set by the flam 63 and the spring 64 (pressure slightly exceeding a predetermined pressure suitable for fire fighting activity). 65 is opened and excess secondary pressure is applied to the drain pipe 2
Vent to 5 and maintain the secondary pressure at a pressure suitable for a given fire fighting activity. Therefore, even if the pressure in the secondary side pipe 2 is greatly increased due to the temperature rise and other factors, the drain valve 61
Detects excessive secondary pressure, and reduces the secondary pressure to a predetermined pressure. The drain valve 61 is a valve that opens by the action of the spring 64 or the like, but may be a valve that electrically performs an opening operation with respect to the secondary pressure.
【００２４】その他に本ユニット７０内には、二次圧を
測定するための圧力計７２が配管２４に、一次圧を測定
するための圧力計７３が配管３３に接続されている。ま
た、開放弁３の開放を検出する圧力スイッチ７４が、開
放弁３の弁座７５に形成され弁体４３閉止時には弁体４
３によって閉止されている流水検知室７６からの枝管７
７に接続されている。枝管７７は、オリフィス７８を介
して排水管２５に接続されていて、開放弁３の閉止時に
は圧力スイッチ７４を動作させた消火水が徐々に排水さ
れるようになっている。In addition, in the unit 70, a pressure gauge 72 for measuring the secondary pressure is connected to the pipe 24, and a pressure gauge 73 for measuring the primary pressure is connected to the pipe 33. Further, the pressure switch 74 for detecting the opening of the opening valve 3 is formed on the valve seat 75 of the opening valve 3 and the valve body 4 is closed when the valve body 43 is closed.
Branch pipe 7 from running water detection chamber 76 closed by 3
Connected to 7. The branch pipe 77 is connected to the drain pipe 25 through the orifice 78, and when the opening valve 3 is closed, the fire extinguishing water that operates the pressure switch 74 is gradually discharged.
【００２５】次に、本実施例における動作について説明
する。複数のスプリンクラヘッド１が接続される二次側
配管２内には、常時消火活動に適した所定の圧力で消火
水が充填されている。ここで二次側配管２内が温度降下
等により僅かに減圧した場合には、調圧弁４０の作用に
より一次側配管６内の消火水を配管３３、３７、シリン
ダ３８等を介して二次側配管２内に充水し、二次側配管
２内を所定圧に昇圧させる。また、温度上昇等により二
次側配管２内が余分に昇圧した場合には、排水弁６１が
動作し、弁体６５が開放して二次側の消火水を排水管２
５に排出して、二次圧を所定圧に減圧させる。Next, the operation of this embodiment will be described. The secondary pipe 2 to which a plurality of sprinkler heads 1 are connected is constantly filled with fire-extinguishing water at a predetermined pressure suitable for fire-extinguishing activities. When the inside of the secondary side pipe 2 is slightly decompressed due to a temperature drop or the like, the action of the pressure regulating valve 40 causes the fire extinguishing water in the primary side pipe 6 to pass through the pipes 33, 37, the cylinder 38, etc. to the secondary side. The pipe 2 is filled with water, and the inside of the secondary pipe 2 is pressurized to a predetermined pressure. Further, when the pressure inside the secondary pipe 2 is excessively increased due to a temperature rise or the like, the drain valve 61 operates, the valve body 65 is opened, and the fire extinguishing water on the secondary side is drained.
Then, the secondary pressure is reduced to a predetermined pressure.
【００２６】この状態において、火災が発生するとスプ
リンクラヘッド１が開放し、二次側配管２内の消火水の
放水を開始する。ヘッド１の放水が開始されると、調圧
弁４０が二次圧の減圧を検出して弁体３６を開放し、一
次側配管６の消火水をシリンダ３８に導入して、開放弁
３の弁体４３を開動作させる。弁体４３が開くと、一次
側５の消火水が二次側４へ供給され、同時に流水検知室
７６に消火水が流入し、圧力スイッチ７４が動作して、
受信盤１０にヘッド１の動作信号を送出する。In this state, when a fire occurs, the sprinkler head 1 is opened and the fire extinguishing water in the secondary pipe 2 is started to be discharged. When the water discharge of the head 1 is started, the pressure regulating valve 40 detects the pressure reduction of the secondary pressure to open the valve body 36, introduce the fire extinguishing water of the primary side pipe 6 into the cylinder 38, and open the valve of the opening valve 3. The body 43 is opened. When the valve body 43 is opened, the fire extinguishing water on the primary side 5 is supplied to the secondary side 4, and at the same time, the fire extinguishing water flows into the running water detection chamber 76, and the pressure switch 74 operates,
The operation signal of the head 1 is sent to the receiving board 10.
【００２７】調圧弁４０は、開放弁３を開放させるだけ
でなく、操作室３２に二次圧を導入することにより、弁
体３６の開度を調整し、開放弁３のシリンダ３８に導入
される一次圧を調整することにより弁体４３の開度を調
整して二次側配管２内が消火活動に適した所定の圧力に
なるように調圧動作を行う。The pressure regulating valve 40 not only opens the opening valve 3 but also introduces a secondary pressure into the operation chamber 32 to adjust the opening degree of the valve body 36 and to introduce it into the cylinder 38 of the opening valve 3. By adjusting the primary pressure to adjust the opening degree of the valve element 43, the pressure adjusting operation is performed so that the inside of the secondary side pipe 2 has a predetermined pressure suitable for fire fighting activity.
【００２８】開放弁３の開放により、一次側配管６の消
火水が流出していくと、加圧送水装置８を構成する図示
していない圧力空気槽に設けられる圧力スイッチが動作
して、モータ１１を起動してポンプ９を動作させ、水源
１２の消火水を加圧供給する。従って、開放したスプリ
ンクラヘッド１は、調圧手段３０によって制御される開
放弁３を通じて、消火活動に適した所定の圧力の消火水
が次々に供給され、効果的な放水を続けることができ
る。When the extinguishing water in the primary side pipe 6 flows out due to the opening of the opening valve 3, a pressure switch provided in a pressure air tank (not shown) constituting the pressurized water supply device 8 operates to operate the motor. 11 is activated and the pump 9 is operated to pressurize and supply the fire extinguishing water from the water source 12. Therefore, the opened sprinkler head 1 is continuously supplied with fire-extinguishing water of a predetermined pressure suitable for fire-extinguishing activity through the opening valve 3 controlled by the pressure adjusting means 30, so that effective water discharge can be continued.
【００２９】このスプリンクラヘッド１の開放が、火災
を検知したものであれば問題はないが、衝撃等による誤
動作の場合には、早く放水を停止させる必要がある。そ
の場合には、その警戒区域の放水停止スイッチ５３を操
作する。放水停止スイッチ５３を操作すると、受信盤１
０を介して電動弁５１の電動部５２に閉止信号を送出す
る。それにより電動弁５１は閉止され、シリンダ３８内
は一次圧の供給が遮断されるので減圧し、開放弁３の弁
体４３は閉止する。すると、一次側配管６からの給水が
遮断されるので、ヘッド１からの放水を停止させること
ができる。There is no problem as long as the opening of the sprinkler head 1 detects a fire, but in the case of a malfunction due to a shock or the like, it is necessary to stop the water discharge quickly. In that case, the water discharge stop switch 53 of the caution area is operated. When the water discharge stop switch 53 is operated, the receiving board 1
A closing signal is sent to the electric section 52 of the electric valve 51 via 0. As a result, the motor-operated valve 51 is closed, the supply of the primary pressure is shut off in the cylinder 38, and the pressure is reduced, and the valve element 43 of the opening valve 3 is closed. Then, since the water supply from the primary side pipe 6 is cut off, the water discharge from the head 1 can be stopped.
【００３０】上記のように、本実施例のシステムでは、
二次側配管２内の圧力を火災時のみではなく、常時も消
火活動に適した所定の圧力とすることができ、スプリン
クラヘッド１の誤動作の場合には、簡単に放水を停止さ
せることのできる有用な消火設備である。この設備の開
放弁３は減圧開の弁でも可能である。As described above, in the system of this embodiment,
The pressure in the secondary side pipe 2 can be set to a predetermined pressure suitable for fire extinguishing activities not only at the time of fire but also at all times, and in the case of malfunction of the sprinkler head 1, water discharge can be easily stopped. It is a useful fire extinguisher. The opening valve 3 of this equipment can be a valve for decompression opening.
【００３１】[0031]
【発明の効果】以上のように、本発明は、警戒地区に、
複数の閉鎖型スプリンクラヘッドと、開放弁が設けら
れ、その一次側配管が消火水供給手段に、二次側配管が
スプリンクラヘッドにそれぞれ接続され、開放弁は、一
次側の消火水を所定圧に減圧調整して二次側へ供給する
調圧手段を有し、二次側配管内の減圧を調圧手段が検出
し、開放弁の弁体を開放および開度調整するものにおい
て、開放弁は、更に排水手段を有し、二次側配管内が所
定圧を越える場合に排水を行うことを特徴とするもので
ある。二次側配管内は、常時は調圧手段により所定圧に
調圧充水される。そして、二次側配管内の圧力が高くな
った場合には、排水手段の作用により、排水弁の弁体が
開放して排水を行い、所定の圧力まで減圧すると、排水
弁の弁体は閉止する。従って、二次側配管内は所定圧に
維持される。INDUSTRIAL APPLICABILITY As described above, according to the present invention, the
A plurality of closed-type sprinkler heads and an open valve are provided, the primary side pipes thereof are connected to the fire extinguishing water supply means, and the secondary side pipes thereof are connected to the sprinkler head. In a device that has pressure adjusting means for adjusting the pressure reduction and supplies it to the secondary side, the pressure adjusting means detects the pressure reduction in the secondary side pipe, and opens and opens the valve body of the open valve, the open valve is Further, it is characterized in that it further comprises a draining means, and drains when the inside of the secondary side pipe exceeds a predetermined pressure. The inside of the secondary side pipe is constantly regulated and filled with a predetermined pressure by the pressure regulating means. When the pressure in the secondary piping becomes high, the drain valve valve element opens the drain valve for drainage, and when the pressure is reduced to a predetermined pressure, the drain valve valve element closes. To do. Therefore, the inside of the secondary side pipe is maintained at a predetermined pressure.
【図１】本発明を利用した一実施例を示す系統図。FIG. 1 is a system diagram showing an embodiment using the present invention.
１ 閉鎖型スプリンクラヘッド ２ 二次側配管 ３ 開放弁 ６ 一次側配管 ８ 加圧送水装置（消火水供給手段） ３０ 調圧手段 ４０ 調圧弁 ５０ 遮断手段 ５１ 電動弁 ５３ 放水停止スイッチ ６０ 排水手段 ６１ 排水弁 1 Closed type sprinkler head 2 Secondary side piping 3 Open valve 6 Primary side piping 8 Pressurized water supply device (fire extinguishing water supply means) 30 Pressure adjusting means 40 Pressure adjusting valve 50 Shutoff means 51 Electric valve 53 Water discharge stop switch 60 Drainage means 61 Drainage valve
Claims (2)
ヘッドと、開放弁が設けられ、該開放弁の一次側配管が
消火水供給手段に、二次側配管が前記スプリンクラヘッ
ドに、それぞれ接続され、 前記開放弁は、一次側の消火水を所定圧に減圧調整して
二次側へ供給する調圧手段を有し、前記二次側配管内の
減圧を該調圧手段が検出し、前記開放弁の弁体を開放お
よび開度調整されるスプリンクラ消火設備において、 前記開放弁は、更に、排水手段を有し、前記二次側配管
内が所定圧を越える場合に排水を行うことを特徴とする
スプリンクラ消火設備。1. A plurality of closed-type sprinkler heads and an open valve are provided in a warning area, and a primary side pipe of the open valve is connected to a fire extinguishing water supply means, and a secondary side pipe is connected to the sprinkler head. The opening valve has pressure adjusting means for reducing the primary side fire-extinguishing water to a predetermined pressure and supplying it to the secondary side, and the pressure reducing means detects the reduced pressure in the secondary side pipe, In a sprinkler fire extinguishing system in which a valve body of an open valve is opened and an opening is adjusted, the open valve further has a draining means, and drains when the inside of the secondary pipe exceeds a predetermined pressure. Sprinkler fire extinguishing equipment.
れた弁体を有する排水弁により構成され、該排水弁は、
二次側配管内が所定圧を越えるときに弁体が開放するも
のである請求項１のスプリンクラ消火設備。2. The drainage means is composed of a drainage valve having a valve body biased by a pressure near a predetermined pressure, and the drainage valve comprises:
The sprinkler fire extinguishing system according to claim 1, wherein the valve element is opened when the pressure inside the secondary pipe exceeds a predetermined pressure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP25862792A JP3205883B2 (en) | 1992-09-28 | 1992-09-28 | Sprinkler fire extinguishing equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP25862792A JP3205883B2 (en) | 1992-09-28 | 1992-09-28 | Sprinkler fire extinguishing equipment |
Related Child Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2001015727A Division JP3661930B2 (en) | 2001-01-24 | 2001-01-24 | Sprinkler fire extinguishing equipment |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH06105926A true JPH06105926A (en) | 1994-04-19 |
| JP3205883B2 JP3205883B2 (en) | 2001-09-04 |
Family
ID=17322907
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP25862792A Expired - Lifetime JP3205883B2 (en) | 1992-09-28 | 1992-09-28 | Sprinkler fire extinguishing equipment |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3205883B2 (en) |
-
1992
- 1992-09-28 JP JP25862792A patent/JP3205883B2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JP3205883B2 (en) | 2001-09-04 |
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