JP3131739B2 - Simultaneous release valve - Google Patents
Simultaneous release valveInfo
- Publication number
- JP3131739B2 JP3131739B2 JP02407175A JP40717590A JP3131739B2 JP 3131739 B2 JP3131739 B2 JP 3131739B2 JP 02407175 A JP02407175 A JP 02407175A JP 40717590 A JP40717590 A JP 40717590A JP 3131739 B2 JP3131739 B2 JP 3131739B2
- Authority
- JP
- Japan
- Prior art keywords
- valve
- chamber
- hole
- main valve
- 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)
- Fluid-Driven Valves (AREA)
Description
【０００１】[0001]
【産業上の利用分野】この発明は、消火設備に用いる一
斉開放弁に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a simultaneous release valve used for fire extinguishing equipment.
【０００２】[0002]
【従来の技術】スプリンクラヘッドを用いるスプリンク
ラ消火設備ゃ泡消火設備等には、放液区域ごとに弁が設
けられる。この一斉開放弁は、弁箱内を一次室と二次室
とに区分する弁座にばねによって箱状の弁体が着座し
て、弁体と弁箱とで形成される操作室を例えば液圧する
ことによって弁体を離座させて二次室に消火液を導入す
る構造としている。2. Description of the Related Art Sprinkler fire extinguishing equipment using a sprinkler head ヘ ッ ド Foam extinguishing equipment and the like are provided with a valve for each liquid discharge area. In this simultaneous release valve, a box-shaped valve body is seated by a spring on a valve seat that divides the inside of the valve box into a primary chamber and a secondary chamber, and an operation chamber formed by the valve body and the valve box is, for example, a liquid. By pressing the valve, the valve body is unseated, and the fire extinguishing liquid is introduced into the secondary chamber.
【０００３】[0003]
【発明が解決しようとする課題】そして、この二次室に
接続する消火設備が単なるスプリンクラヘッドの場合、
又は予作動式スプリンクラ消火設備のとき、あるいは泡
消火設備の場合等、それぞれに応じて上記操作室を減圧
操作するために弁は従来、種々別異の構造に形成されて
いて、その型式が多種となっている。When the fire extinguishing equipment connected to the secondary chamber is a simple sprinkler head,
Or, in the case of a pre-actuated sprinkler fire extinguishing system, or in the case of a foam extinguishing system, etc., the valves have conventionally been formed in various different structures in order to depressurize the operation chamber according to each, and there are various types of valves. It has become.
【０００４】また、従来では弁の一次側の液圧はそのま
ま二次側に導入されるので二次側の配管や弁類は上記一
次側と同等の耐圧グレードのものを使用する必要があ
り、コストが嵩んでいる。Conventionally, the hydraulic pressure on the primary side of the valve is directly introduced into the secondary side, so that the secondary side piping and valves must be of the same pressure-resistant grade as the primary side. Cost is high.
【０００５】そこで、二次側の液圧を低圧として二次側
の配管や弁類に、耐圧グレードの低いものが使用できる
ようにして配管の施工を簡易化し、設備費を低減しよう
とするとき、この弁に調圧機能を持たせようとすると、
さらにその型式は増えることになる。[0005] Therefore, when the secondary-side hydraulic pressure is set to a low pressure, pipes and valves having a low pressure-resistance grade can be used for the secondary-side piping and valves to simplify the piping installation and reduce equipment costs. If you try to give this valve a pressure regulation function,
In addition, the models will increase.
【０００６】この発明は、従来の弁のこのような問題を
解決するために提案されたもので、基本となる一つの一
斉開放弁によって種々の消火設備に使用できて製造コス
トを低減できると共に、在庫管理が便利となる多目的使
用可能な一斉開放弁を提供するものである。The present invention has been proposed in order to solve such a problem of the conventional valve, and can be used for various fire extinguishing facilities by using one basic simultaneous opening valve, thereby reducing the manufacturing cost. An object of the present invention is to provide a multi-purpose simultaneous release valve that facilitates inventory management.
【０００７】[0007]
【課題を解決するための手段】上記課題を解決するため
この発明は、弁箱２内を一次室４と二次室５とに区分す
る主弁座３と、弁ばね１２によって主弁座３を閉じるよ
うにした箱状の主弁体７と、主弁体７と弁箱２内壁の一
部とによって二次室５内に形成された主弁室８とを有す
る一斉開放弁であって、一次室４と主弁室８とを連通す
るように主弁体７に設けられた小孔９と、ばね１４によ
って小孔９を閉じるようにした弁体１３とを有し、主弁
体７の周壁部には、主弁室８と二次室５とを連通するた
めの連通孔１５を、弁箱２には、主弁室８の液圧を弁箱
２の外に取り出すための取出孔１６を、それぞれ形成で
きるようにしている。In order to solve the above-mentioned problems, the present invention provides a main valve seat 3 for dividing the inside of a valve box 2 into a primary chamber 4 and a secondary chamber 5, and a main valve seat 3 by a valve spring 12. And a main valve body 8 formed in the secondary chamber 5 by the main valve body 7 and a part of the inner wall of the valve box 2. , A small hole 9 provided in the main valve body 7 so as to communicate the primary chamber 4 with the main valve chamber 8, and a valve body 13 in which the small hole 9 is closed by a spring 14. 7, a communication hole 15 for communicating the main valve chamber 8 with the secondary chamber 5 is provided in the peripheral wall portion. A valve box 2 is provided for taking out the hydraulic pressure of the main valve chamber 8 out of the valve box 2. The extraction holes 16 can be formed respectively.
【０００８】そして、主弁体７の周壁部に上記連通孔１
５を形成し、二次室には閉鎖型のスプリンクラヘッド１
９を接続している。The communication hole 1 is formed in the peripheral wall of the main valve body 7.
5 and a closed sprinkler head 1 is formed in the secondary chamber.
9 is connected.
【０００９】又、弁箱２に上記取出孔１６を形成し、こ
の取出孔１６に接続した操作弁２２を、火災感知器２８
の動作によって開くように構成し、二次室５には消火用
の端末機器Ａを接続している。Further, the above-mentioned extraction hole 16 is formed in the valve box 2, and the operation valve 22 connected to the extraction hole 16 is connected to a fire detector 28.
The terminal A for fire extinguishing is connected to the secondary room 5.
【００１０】或いは、弁箱２に上記取出孔１６を形成
し、この取出孔１６に火災感知用の閉鎖型のスプリンク
ラヘッド１９を接続し、二次室５には消火用の端末機器
Ａを接続している。Alternatively, the outlet 16 is formed in the valve box 2, a closed-type sprinkler head 19 for fire detection is connected to the outlet 16, and a terminal A for fire extinguishing is connected to the secondary chamber 5. are doing.
【００１１】更には、弁箱２に上記取出孔１６を形成
し、この取出孔１６に二次室５の液圧をパイロットとし
て動作する調圧弁３５を接続し、二次室５には消火用の
端末機器Ａを接続している。Further, the outlet hole 16 is formed in the valve box 2, and a pressure regulating valve 35 that operates using the hydraulic pressure of the secondary chamber 5 as a pilot is connected to the outlet hole 16. Terminal device A is connected.
【００１２】そして、弁箱２に上記取出孔１６を形成
し、この取出孔１６に一次室４の液圧をパイロットとし
て動作する調圧弁３５を接続し、一次室４には消火用の
端末機器Ａを、二次室５には排液管２３を、それぞれ接
続している。The outlet 16 is formed in the valve box 2, a pressure regulating valve 35 that operates using the hydraulic pressure of the primary chamber 4 as a pilot is connected to the outlet 16, and a fire-extinguishing terminal device is connected to the primary chamber 4. A, and a drain pipe 23 is connected to the secondary chamber 5.
【００１３】[0013]
【作用】一斉開放弁１の一次室４と主弁室８とを連通す
るように主弁体７に小孔９を設け、この小孔９を閉じる
ようにばね１４によって付勢した弁体１３を設け、主弁
体７の周壁部には、主弁室８と二次室５とを連通するた
めの連通孔１５を、弁箱２には、主弁室８の圧力液を弁
箱２の外に取り出すための取出孔１６を、それぞれ形成
できるように構成したので、周壁部に連通孔１５を設け
て二次室５にスプリンクラヘッド１９を接続することに
より、湿式消火設備に使用できるほか、弁箱２に取出孔
１６を設けてこの取出孔１６に火災感知用の機器を接続
することにより、予作動式、開放式等の消火設備に使用
し、あるいは、調圧弁３５を接続して一次圧又は二次圧
の調圧を行うことができる等、多目的使用可能な一斉開
放弁１となった。A small hole 9 is provided in the main valve body 7 so as to communicate the primary chamber 4 and the main valve chamber 8 of the simultaneous release valve 1, and the valve body 13 urged by a spring 14 to close the small hole 9 is provided. A communication hole 15 for communicating the main valve chamber 8 with the secondary chamber 5 is provided in the peripheral wall of the main valve body 7, and the pressure fluid in the main valve chamber 8 is provided in the valve box 2. Since the take-out holes 16 for taking out outside can be formed respectively, by providing the communication holes 15 in the peripheral wall portion and connecting the sprinkler head 19 to the secondary chamber 5, it can be used for wet fire extinguishing equipment. By providing an extraction hole 16 in the valve box 2 and connecting a fire detection device to the extraction hole 16, it can be used for a fire-extinguishing equipment of a pre-operation type, an open type or the like, or by connecting a pressure regulating valve 35. The simultaneous opening valve 1 can be used for multiple purposes such as adjusting the primary pressure or the secondary pressure.
【００１４】主弁体７の周壁部に上記取出孔１６を形成
し、二次室５に閉鎖型のスプリンクラヘッド１９を接続
することによって湿式スプリンクラ消火設備の警報弁と
して一斉開放弁１を使用できる。The simultaneous opening valve 1 can be used as an alarm valve of a wet-type sprinkler fire extinguishing system by forming the above-mentioned outlet hole 16 in the peripheral wall portion of the main valve body 7 and connecting a closed type sprinkler head 19 to the secondary chamber 5. .
【００１５】弁箱２に上記取出孔１６を形成し、この取
出孔１６に接続した操作弁２２を、火災感知器２８の動
作によって開くように構成し、二次室５には消火用の端
末機器Ａを接続すれば、予作動式スプリンクラ消火設備
の予作動弁として一斉開放弁１を使用できる。The outlet hole 16 is formed in the valve box 2, and the operation valve 22 connected to the outlet hole 16 is configured to be opened by the operation of the fire detector 28, and a fire extinguishing terminal is provided in the secondary chamber 5. If the device A is connected, the simultaneous opening valve 1 can be used as a pre-operation valve of the pre-operation type sprinkler fire extinguishing equipment.
【００１６】又は弁箱２に上記取出孔１６を形成し、こ
の取出孔１６に火災感知用の閉鎖型のスプリンクラヘッ
ド３１を接続し、二次室５には消火用の端末機器Ａを接
続することによって開放式の消火設備の一斉開放弁１と
して使用できる。Alternatively, the take-out hole 16 is formed in the valve box 2, a closed-type sprinkler head 31 for fire detection is connected to the take-out hole 16, and a fire extinguishing terminal device A is connected to the secondary chamber 5. Thereby, it can be used as the simultaneous opening valve 1 of the open fire extinguishing equipment.
【００１７】或いは弁箱２に上記取出孔１６を形成し、
この取出孔１６に二次室５の液圧をパイロットとして動
作する調圧弁３５を接続し、一次室４には消火用の端末
機器Ａを接続すれば、この一斉開放弁１を消火設備の二
次圧の圧力調整弁として使用で、そしてこの調圧弁３５
の設定値を十分低い値として二次側２１の液圧を低圧と
すれば、端末機器Ａや二次側２１の配管等の耐圧グレー
ドを下げて設備コストの低減を図ることが可能となる。Alternatively, the outlet hole 16 is formed in the valve box 2,
If a pressure regulating valve 35 that operates with the hydraulic pressure of the secondary chamber 5 as a pilot is connected to the outlet 16 and a terminal device A for fire extinguishing is connected to the primary chamber 4, the simultaneous opening valve 1 will be connected to the fire extinguishing equipment. It can be used as a pressure regulating valve for the next pressure, and this pressure regulating valve 35
If the hydraulic pressure on the secondary side 21 is set to a low pressure by setting the set value of the secondary side 21 to a sufficiently low value, it is possible to reduce the pressure resistance grade of the terminal device A and the piping of the secondary side 21 and to reduce the equipment cost.
【００１８】さらに弁箱２に上記取出孔１６を形成し、
この取出孔１６に一次室４の液圧をパイロットとして動
作する調圧弁３５を接続し、一次室４には消火用の端末
機器Ａを、二次室５には排液管２３を、それぞれ接続す
ることによってこの一斉開放弁１を消火設備の一次圧の
圧力調整弁として使用できる。Further, the above-mentioned extraction hole 16 is formed in the valve box 2,
A pressure regulating valve 35 that operates using the hydraulic pressure of the primary chamber 4 as a pilot is connected to the outlet 16, a terminal device A for fire extinguishing is connected to the primary chamber 4, and a drain pipe 23 is connected to the secondary chamber 5. By doing so, the simultaneous opening valve 1 can be used as a pressure regulating valve for the primary pressure of the fire extinguishing equipment.
【００１９】[0019]
【実施例】次にこの発明の実施例を図に基づき説明す
る。図１は一斉開放弁１の縦断面図であって、弁箱２内
を主弁座３によって一次室４と二次室５とに区分し、弁
箱内壁の一部として弁箱２に内嵌した筒体６に箱状の主
弁体７を筒体６の筒心方向移動可能に嵌合して、この筒
体６と主弁体７とによって二次室５内に主弁室８を形成
する。主弁体７の底部には、一次室４と主弁室８とを連
通する小孔９とこの小孔９に連通する小径筒体１０とを
設け、小径筒体１０の周部には一次室４と主弁室８とを
連通する複数個の貫通孔１１を設けている。主弁体７は
弁ばね１２によって主弁座３を閉じるように付勢され、
小径筒体１０内でリフト自在に設けている弁体１３は、
ばね１４によって小孔９を閉じるように付勢されてい
る。主弁体７の周壁部には、後述する実施例のように主
弁室８と二次室５とを連通する複数個の貫通孔１５を、
必要に応じて設けることができるように構成している。
又、弁箱２には後述する実施例のように主弁室８の圧力
液を弁箱２の外に取り出すための取出孔１６を、必要に
応じて設けることができるように構成している。Next, an embodiment of the present invention will be described with reference to the drawings. FIG. 1 is a longitudinal sectional view of the simultaneous release valve 1. The inside of a valve box 2 is divided into a primary chamber 4 and a secondary chamber 5 by a main valve seat 3, and the inside of the valve box 2 is formed as a part of the inner wall of the valve box. A box-shaped main valve body 7 is fitted to the fitted cylinder 6 so as to be movable in the direction of the center of the cylinder 6, and the main valve chamber 8 is inserted into the secondary chamber 5 by the cylinder 6 and the main valve 7. To form A small hole 9 communicating the primary chamber 4 and the main valve chamber 8 and a small-diameter cylinder 10 communicating with the small hole 9 are provided at the bottom of the main valve body 7. A plurality of through holes 11 are provided for communicating the chamber 4 with the main valve chamber 8. The main valve body 7 is biased by a valve spring 12 to close the main valve seat 3,
The valve body 13 provided so as to be liftable in the small-diameter cylindrical body 10 is:
The small hole 9 is urged by a spring 14 to close it. A plurality of through holes 15 for communicating the main valve chamber 8 and the secondary chamber 5 are provided in the peripheral wall portion of the main valve body 7 as in the embodiment described later.
It is configured so that it can be provided as needed.
Further, the valve box 2 is provided with an extraction hole 16 for extracting the pressure fluid in the main valve chamber 8 to the outside of the valve box 2 as required, as in an embodiment to be described later. .
【００２０】そして、弁ばね１２は、一次室４の液圧に
対して貫通孔１５を介した二次側の減圧による主弁室８
内の液圧が十分に減圧されるとき、或いは取出孔１６か
ら主弁室８の圧力液が排液されるときには、一次室４の
液圧によって圧縮されて主弁体７は主弁座３から離座す
るようにその弾性が設定されている。又、ばね１４は、
二次側の洩れ、或いは気温に伴う圧力変化等の自然減圧
による一次室４と主弁室８との液圧に少しでも差がある
ときにのみ圧縮されて弁体１３が小孔９を開いてこれら
両方の室４と８を等圧に保持するようにその弾性が設定
されている。The valve spring 12 acts on the main valve chamber 8 by reducing the pressure on the secondary side through the through hole 15 with respect to the hydraulic pressure in the primary chamber 4.
When the internal fluid pressure is sufficiently reduced or when the pressure fluid in the main valve chamber 8 is drained from the outlet 16, the main valve body 7 is compressed by the fluid pressure in the primary chamber 4 and the main valve body 7 is compressed. The elasticity is set so as to separate from the user. Also, the spring 14
It is compressed only when there is any difference in the hydraulic pressure between the primary chamber 4 and the main valve chamber 8 due to leakage on the secondary side or natural pressure reduction such as pressure change due to air temperature, and the valve body 13 opens the small hole 9. The elasticity is set so that both chambers 4 and 8 are maintained at the same pressure.
【００２１】主弁座３には、主弁体７の開放時での液圧
を検知して圧力スイッチ１７を所定に動作させるための
開弁信号取り出し孔１８を設けていて、開弁信号取り出
し孔１８からの消火液は、オリフィス２７等を介して排
出できるように構成している。小孔９、貫通孔１５、取
出孔１６は、一斉開放弁１の製造時に各々、開け閉めを
決めておくこと、或いは、各孔をねじ孔として適当なね
じを螺着することなどで、これらの孔の構成を決めるこ
とができる。The main valve seat 3 is provided with a valve opening signal extracting hole 18 for detecting the hydraulic pressure when the main valve body 7 is opened and operating the pressure switch 17 in a predetermined manner. The fire extinguishing liquid from the hole 18 is configured to be discharged through the orifice 27 and the like. The small hole 9, the through hole 15, and the take-out hole 16 may be respectively opened and closed at the time of manufacturing the simultaneous opening valve 1, or each of the holes may be screwed and an appropriate screw may be screwed. Of the holes can be determined.
【００２２】次にこの一斉開放弁１の使用例を説明す
る。図２は、湿式スプリンクラ消火装置としての使用を
示すブロック図である。主弁体７の周壁部に連通孔１５
を明け、二次室５に閉鎖型のスプリンクラヘッド１９を
接続し一次室４は消火液の加圧供給装置２０に接続し
て、取出孔１６は明けないままとしている。従って常態
ではスプリンクラヘッド１９等二次側２１に漏れなどで
僅かな差圧があるときにのみ弁体１３が小孔９を開き、
一次室４の消火液は小孔９、貫通孔１１、連通孔１５を
経て二次室５に補給され、二次側２１は所定圧に充液さ
れている。火災発生によりスプリンクラヘッド１９が開
放すると二次室５及び主弁室８の液圧は大きく低下して
一次室４と主弁室８との差圧により主弁体７は離座し、
一次室４の消火液は二次室５に供給され、開弁信号取り
出し孔１８から液圧を受けて圧力スイッチ１７が動作
し、スプリンクラヘッド１９の開放を放置する。Next, an example of use of the simultaneous release valve 1 will be described. FIG. 2 is a block diagram showing the use as a wet sprinkler fire extinguisher. A communication hole 15 is formed in the peripheral wall of the main valve body 7.
After that, a closed-type sprinkler head 19 is connected to the secondary chamber 5, the primary chamber 4 is connected to the pressurized liquid supply device 20 for the fire extinguishing liquid, and the discharge hole 16 is left unlit. Therefore, under normal conditions, the valve element 13 opens the small hole 9 only when there is a slight differential pressure due to leakage on the secondary side 21 such as the sprinkler head 19,
The fire extinguishing liquid in the primary chamber 4 is supplied to the secondary chamber 5 through the small holes 9, the through holes 11, and the communication holes 15, and the secondary side 21 is charged to a predetermined pressure. When the sprinkler head 19 is opened due to the occurrence of a fire, the hydraulic pressures in the secondary chamber 5 and the main valve chamber 8 are greatly reduced, and the main valve element 7 is unseated due to a pressure difference between the primary chamber 4 and the main valve chamber 8.
The fire extinguishing liquid in the primary chamber 4 is supplied to the secondary chamber 5 and receives the hydraulic pressure from the valve opening signal extracting hole 18 to operate the pressure switch 17 and leave the sprinkler head 19 open.
【００２３】図３は、予作動式スプリンクラ消火設備と
しての使用を示すブロック図である。弁箱２に取出孔１
６を明け、この取出孔１６に操作弁２２を接続して操作
弁２２の二次側は排液管２３に接続し、モーター又はソ
レノイドの如き電動部２４を電路２５によって受信盤２
６に接続する。消火用の端末機器Ａの一例として警戒地
区に配置した閉鎖型のスプリンクラヘッド１９を二次室
５に接続し、一次室４は消火液の加圧供給装置２０に接
続し、上記警戒地区に設けた火災感知器２８は電路２９
を介して受信盤２６に接続し、そして連通孔１５は明け
ないでおく。火災感知器２８が動作していない常態では
上記のように弁体１３とばね１４の動作によって主弁室
８は一次室４と同圧に消火液が充液されている。従って
常態で操作弁２２等の操作系３０に漏れなどの自然減圧
があるときにのみ弁体１３が小孔９を開き、一次室４の
消化液は小孔９、貫通孔１１を経て主弁室８に補給され
て主弁室８は一次室４と同圧に充液され、弁ばね１２に
よって主弁体７は主弁座３を閉じている。この常態で火
災が発生して火災感知器２８が動作すると、受信盤２６
は電動部２４を動作して操作弁２２を開き、主弁室８の
消火液は排液管２３から排液されて一次室４の液圧によ
って主弁体７は離座し、一斉開放弁１は開いて一次室４
の消火液は二次側２１に充液される。そして火災地点の
温度がさらに上昇すると、スプリンクラヘッド１９が開
放して消火動作が開始される。この使用例では連通孔１
５は設けていないのでスプリンクラヘッド１９が機械的
に破損しても主弁室８が減圧されることはなく、従って
火災が発生しないのに一斉開放弁１が開く事故は起こら
ない。FIG. 3 is a block diagram showing the use as a pre-actuated sprinkler fire extinguishing system. Extraction hole 1 in valve box 2
6, the operation valve 22 is connected to the outlet hole 16, the secondary side of the operation valve 22 is connected to the drain pipe 23, and an electric unit 24 such as a motor or a solenoid is connected to the receiving board 2 by an electric circuit 25.
Connect to 6. As an example of a fire extinguishing terminal device A, a closed type sprinkler head 19 arranged in a guard area is connected to the secondary chamber 5, and the primary chamber 4 is connected to a fire extinguishing fluid pressurized supply device 20 and provided in the above-mentioned security area. Fire detector 28
And the communication hole 15 is not opened. In a normal state in which the fire detector 28 is not operating, the fire extinguishing liquid is filled in the main valve chamber 8 to the same pressure as the primary chamber 4 by the operation of the valve 13 and the spring 14 as described above. Therefore, the valve body 13 opens the small hole 9 only when the operating system 30 such as the operating valve 22 has a natural decompression such as a leak in the normal state, and the digestive fluid in the primary chamber 4 passes through the small hole 9 and the through-hole 11 to the main valve. The main valve chamber 8 is replenished to the same pressure as the primary chamber 4 after being supplied to the chamber 8, and the main valve body 7 closes the main valve seat 3 by the valve spring 12. When a fire occurs in this normal state and the fire detector 28 operates, the receiving panel 26
The electric valve 24 is operated to open the operation valve 22, the fire extinguishing liquid in the main valve chamber 8 is drained from the drain pipe 23, the main valve 7 is separated by the hydraulic pressure in the primary chamber 4, and the simultaneous release valve is opened. 1 is open and primary room 4
Is extinguished in the secondary side 21. Then, when the temperature at the fire point further rises, the sprinkler head 19 is opened and the fire extinguishing operation is started. In this use example, the communication hole 1
Since the sprinkler head 5 is not provided, the main valve chamber 8 is not depressurized even if the sprinkler head 19 is mechanically damaged. Therefore, an accident that the simultaneous opening valve 1 opens even if a fire does not occur does not occur.
【００２４】図４は、乾式の消火設備としての使用を示
すブロック図である。弁箱２に閉出孔１６を開け、この
閉出孔１６に火災感知用の閉鎖型のスプリンクラヘッド
３１を接続し、二次室５には泡ヘッド３２或いは図示し
ない開放型のスプリンクラヘッド等の消火用の端末機器
Ａを接続し、一次室４には詳細は省くが泡消火薬剤を貯
蔵して泡水溶液を生成して送出し、又は圧力液を送出す
る消火薬剤供給装置３４を接続し、連通孔１５は明けな
いでおく。火災感知用のスプリンクラヘッド３１が動作
していない常態では上記のように弁体１３とばね１４の
動作によって主弁室８は一次室４と同圧に消火液が充液
されていてスプリンクラヘッド３１等に漏れ等による僅
かな差圧があるときにのみ弁体１３が小孔９を開き、一
次室４の消火液は小孔９、貫通孔１１を経て主弁室８に
補給されて主弁室８は一次室４と同圧に充液され、弁ば
ね１２によって主弁体７は主弁座３を閉じている。火災
が発生して火災感知用のスプリンクラヘッド３１が開放
する主弁室８の消火液はスプリンクラヘッド３１から排
液されて一次室４の液圧によって主弁体７は離座し、一
斉開放弁１は開いて一次室４の泡消火薬剤は泡ヘッド３
２（又は圧力液は開放型のスプリンクラヘッド）から放
出される。火災感知用のスプリンクラヘッド３１と同様
に手動開放弁を設けてもよく、その場合には火災発見者
によって初期消火を行うことができる。FIG. 4 is a block diagram showing the use as a dry fire extinguishing system. A closing hole 16 is opened in the valve box 2, and a closed type sprinkler head 31 for fire detection is connected to the closing hole 16, and a foam head 32 or an open type sprinkler head (not shown) is connected to the secondary chamber 5. A fire extinguishing terminal device A is connected, and the primary room 4 is connected to a fire extinguishing agent supply device 34 that stores foam extinguishing agent and generates and sends an aqueous foam solution, or sends out a pressurized liquid, although details are omitted. The communication hole 15 is not opened. In the normal state where the sprinkler head 31 for fire detection is not operating, the main valve chamber 8 is filled with the fire extinguishing liquid at the same pressure as the primary chamber 4 by the operation of the valve element 13 and the spring 14 as described above. The valve body 13 opens the small hole 9 only when there is a slight differential pressure due to leakage or the like, and the fire extinguishing liquid in the primary chamber 4 is supplied to the main valve chamber 8 through the small hole 9 and the through hole 11 and the main valve is opened. The chamber 8 is filled with the same pressure as the primary chamber 4, and the main valve 7 closes the main valve seat 3 by the valve spring 12. The fire extinguishing liquid in the main valve chamber 8 is opened from the sprinkler head 31 when a fire occurs and the sprinkler head 31 for fire detection is opened, and the main valve body 7 is unseated by the hydraulic pressure in the primary chamber 4 and the simultaneous release valve is opened. 1 is open and the foam for primary chamber 4 is foam head 3
2 (or pressurized liquid is released from the open sprinkler head). As with the sprinkler head 31 for fire detection, a manual release valve may be provided, and in this case, an initial fire extinguishing can be performed by a fire finder.
【００２５】図５は、一斉開放弁１を消火設備の二次圧
の圧力調整弁として使用した例を示すブロック図であ
る。弁箱２に取出孔１６を明け、この取出孔１６に調圧
弁３５の一次側を接続し、調圧弁３５の二次側は一斉開
放弁１の二次側２１に配管３６を介して接続してこの調
圧弁３５は二次室５の液圧をパイロットとして動作する
ようにし、二次側２１にはスプリンクラヘッド１９等の
端末機器Ａを接続し、一次室４は消火液の加圧供給装置
２０に接続し、連通孔１５は明けないでおく。そして、
消火活動中例えば二次側２１の液圧が調圧弁３５によ設
定値よりも低下すると調圧弁３５はドレン管３７からの
排液量を増し、主弁室８の液圧を下げるので一次室４の
液圧によって主弁体７は開度を増し、二次側２１への圧
力液の供給を増加し、逆に二次側２１の液圧が設定値よ
り高くなると調圧弁３５はドレン管３７からの排液量を
減らし主弁室８の液圧を上げるので弁ばね１２によって
主弁体７は開度を減らし、二次側２１への圧力液の供給
を減少させ、このようにして二次側２１の液圧は調圧弁
３５の設定値に維持される。従って、火災の状況によっ
て端末機器Ａでの消火液の放液量が大量となって二次側
２１の液圧が低下したとき、或いは加圧供給装置２０の
原因により一次室４の液圧が上下に変動したとき等によ
り二次側２１の液圧が変動する場合にも、調圧弁３５と
一斉開放弁１の上記作用によって二次側２１の液圧は設
定値に維持される。又、調圧弁３５の設定値を十分低い
値として二次側２１の液圧を低圧に維持すれば、端末機
器Ａや二次側２１の配管等の耐圧グレードを十分に下げ
ることができて配管設備コストの低減を図ることも可能
となる。FIG. 5 is a block diagram showing an example in which the simultaneous opening valve 1 is used as a pressure regulating valve for the secondary pressure of the fire extinguishing equipment. An outlet hole 16 is opened in the valve box 2, a primary side of a pressure regulating valve 35 is connected to the outlet hole 16, and a secondary side of the pressure regulating valve 35 is connected to a secondary side 21 of the simultaneous release valve 1 via a pipe 36. The lever pressure control valve 35 operates the hydraulic pressure of the secondary chamber 5 as a pilot, a terminal device A such as a sprinkler head 19 is connected to the secondary side 21, and the primary chamber 4 is a pressurizing and supplying device for the fire extinguishing liquid. 20 and the communication hole 15 is not opened. And
For example, when the hydraulic pressure on the secondary side 21 becomes lower than the set value by the pressure regulating valve 35 during the fire extinguishing activity, the pressure regulating valve 35 increases the amount of drainage from the drain pipe 37 and lowers the hydraulic pressure of the main valve chamber 8 so that the primary chamber is reduced. The main valve element 7 increases the opening degree by the hydraulic pressure of 4 and increases the supply of the pressure liquid to the secondary side 21. Conversely, when the hydraulic pressure of the secondary side 21 becomes higher than the set value, the pressure regulating valve 35 is connected to the drain pipe. Since the amount of drainage from 37 is reduced and the hydraulic pressure in the main valve chamber 8 is increased, the opening of the main valve body 7 is reduced by the valve spring 12 and the supply of the pressurized liquid to the secondary side 21 is reduced. The hydraulic pressure on the secondary side 21 is maintained at the set value of the pressure regulating valve 35. Therefore, when the fire extinguishing liquid in the terminal equipment A becomes large and the hydraulic pressure of the secondary side 21 decreases due to the fire situation, or the hydraulic pressure of the primary chamber 4 decreases due to the pressure supply device 20. Even when the hydraulic pressure on the secondary side 21 fluctuates due to, for example, vertical fluctuation, the hydraulic pressure on the secondary side 21 is maintained at a set value by the above-described operation of the pressure regulating valve 35 and the simultaneous opening valve 1. In addition, if the set value of the pressure regulating valve 35 is set to a sufficiently low value and the hydraulic pressure on the secondary side 21 is maintained at a low pressure, the pressure resistance grade of the terminal device A and the piping on the secondary side 21 can be sufficiently reduced. Equipment costs can also be reduced.
【００２６】図６は、一斉開放弁１を消火設備の一次圧
の圧力調整弁として使用した例を示すブロック図であ
る。弁箱２に取出孔１６を明け、この取出孔１６に配管
３８を介して調圧弁３５の二次側を接続し、調圧弁３５
の一次側は一斉開放弁１の一次側配管４１に配管３９を
介して接続して調圧弁３５は一次室４の液圧をパイロッ
トとして動作するようにし、スプリンクラヘッド１９等
の端末機器Ａは配管４０によって一次側配管４１に接続
し、一斉開放弁１の二次室５は排液管２３に接続し、
又、一次側配管４１は消火液の加圧供給装置２０に接続
し、連通孔１５は明けないでおく。加圧供給装置２０か
らの圧力液は配管４１、 ３９、調圧弁３５、配管３８
を介して主弁室８に供給される。そして、例えば一次側
配管４１の液圧が調圧弁３５による設定値よりも低下す
ると調圧弁３５はドレン管３７からの排液量を減らして
主弁室８の液圧を上げるので主弁体７は開度を減らして
排液管２３からの排液量は減って配管４０の液圧は上昇
し、逆に一次側配管４１の液圧が調圧弁３５による設定
値よりも高くなると調圧弁３５はドレン管３７からの排
液量を増やして主弁室８の液圧を下げるので主弁体７は
開度を増やして排液管２３からの排液量は増えて配管４
０の液圧は低下し、このようにして配管４０の液圧は調
圧弁３５の設定値に維持される。従って、加圧供給装置
２０等の原因により一次側配管４１の液圧が上下に変動
しても、調圧弁３５と一斉開放弁１の上記作用によって
端末機器Ａに供給される液圧は設定値に維持されてスプ
リンクラヘッド等の端末機器Ａは所定に消火活動するこ
とができる。FIG. 6 is a block diagram showing an example in which the simultaneous opening valve 1 is used as a pressure regulating valve for the primary pressure of a fire extinguishing system. An outlet hole 16 is opened in the valve box 2, and a secondary side of a pressure regulating valve 35 is connected to the outlet hole 16 via a pipe 38.
The primary side is connected to the primary side pipe 41 of the simultaneous release valve 1 via the pipe 39, the pressure regulating valve 35 operates with the hydraulic pressure of the primary chamber 4 as a pilot, and the terminal equipment A such as the sprinkler head 19 is connected to the pipe. 40 connects to the primary side pipe 41, the secondary chamber 5 of the simultaneous release valve 1 connects to the drain pipe 23,
Also, the primary side pipe 41 is connected to the fire extinguishing liquid pressurized supply device 20, and the communication hole 15 is not opened. The pressure liquid from the pressurizing supply device 20 is supplied to the pipes 41 and 39, the pressure regulating valve 35,
Is supplied to the main valve chamber 8. Then, for example, when the hydraulic pressure of the primary side pipe 41 becomes lower than the value set by the pressure regulating valve 35, the pressure regulating valve 35 reduces the amount of drainage from the drain pipe 37 and increases the hydraulic pressure of the main valve chamber 8, so that the main valve body 7 When the opening degree is reduced, the amount of drainage from the drainage pipe 23 is reduced and the hydraulic pressure of the pipe 40 is increased. Conversely, when the hydraulic pressure of the primary side pipe 41 becomes higher than the value set by the pressure regulating valve 35, the pressure regulating valve 35 Increases the amount of drainage from the drain pipe 37 and lowers the hydraulic pressure in the main valve chamber 8, so that the opening of the main valve body 7 increases, and the amount of drainage from the drain pipe 23 increases.
The hydraulic pressure of 0 decreases, and the hydraulic pressure of the pipe 40 is maintained at the set value of the pressure regulating valve 35 in this way. Therefore, even if the hydraulic pressure of the primary pipe 41 fluctuates up and down due to the pressure supply device 20 and the like, the hydraulic pressure supplied to the terminal device A by the above-described operation of the pressure regulating valve 35 and the simultaneous opening valve 1 is equal to the set value. And the terminal device A such as a sprinkler head can perform a predetermined fire extinguishing operation.
【００２７】[0027]
【発明の効果】以上のとおりこの発明によれば、主弁体
７の周壁部に連通孔１５を設けて二次室５にスプリンク
ラヘッド１９を接続することにより、湿式スプリンクラ
消火設備に使用できるほか、弁箱２に取出孔１６を設け
てこの取出孔１６に火災感知用の機器を接続することに
より、次述のように予作動式、開放式等の消火設備に使
用し、或いは、調圧弁３５を接続して一次圧又は二次圧
の調圧を行うことができる等、基本となる一つの一斉開
放弁１によって種々の消火設備に使用できて製造コスト
を低減できると共に、在庫管理が便利となった。As described above, according to the present invention, the communication hole 15 is provided in the peripheral wall of the main valve body 7 and the sprinkler head 19 is connected to the secondary chamber 5, so that it can be used for a wet type sprinkler fire extinguishing equipment. By providing a vent hole 16 in the valve box 2 and connecting a fire detecting device to the vent hole 16, it can be used for a fire-extinguishing facility of a pre-operation type or an open type as described below, or a pressure regulating valve. 35 can be used to regulate the primary pressure or the secondary pressure. For example, it can be used for various fire extinguishing equipment by one basic simultaneous opening valve 1, reducing the production cost and convenient inventory control. It became.
【００２８】即ち、主弁体７の周壁部に上記連通孔１５
を形成し、二次室５に閉鎖型のスプリンクラヘッド１９
を接続することによって湿式スプリンクラ消火設備の警
報弁として一斉開放弁１を使用できる。That is, the communication hole 15 is formed in the peripheral wall of the main valve body 7.
And a closed sprinkler head 19 is formed in the secondary chamber 5.
, The simultaneous opening valve 1 can be used as an alarm valve of the wet sprinkler fire extinguishing equipment.
【００２９】弁箱２に上記取出孔１６を形成し、この取
出孔１６に接続した操作弁２２を、火災感知器２８の動
作によって開くように構成し、二次室５には消火用の端
末機器Ａを接続すれば、一斉開放弁１を予作動式スプリ
ンクラ消火設備の予作動弁として使用できる。The take-out hole 16 is formed in the valve box 2, and the operation valve 22 connected to the take-out hole 16 is configured to be opened by the operation of the fire detector 28, and a fire extinguishing terminal is provided in the secondary chamber 5. If the device A is connected, the simultaneous opening valve 1 can be used as a pre-operation valve of the pre-operation type sprinkler fire extinguishing equipment.
【００３０】又は弁箱２に上記取出孔１６を形成し、こ
の取出孔１６に火災感知用のスプリンクラヘッド３１を
接続し、二次室５にはには消火用の端末機器Ａを接続す
ることによって開放式の消火設備の一斉開放弁１として
使用できる。Alternatively, the extraction hole 16 is formed in the valve box 2, a sprinkler head 31 for fire detection is connected to the extraction hole 16, and a fire extinguishing terminal device A is connected to the secondary chamber 5. Thus, it can be used as a simultaneous opening valve 1 of an open fire extinguishing system.
【００３１】或いは弁箱２に上記取出孔１６を形成し、
この取出孔１６に二次室５の液圧をパイロットとして動
作する調圧弁３５を接続し、一次室４には消火用の端末
機器Ａを接続すれば、この一斉開放弁１を消火設備の二
次圧の圧力調整弁として使用できるうえ、この調圧弁３
５の設定値を十分低い値として二次側２１の液圧を低圧
とすれば、端末機器Ａや二次側２１の配管等の耐圧グレ
ードを下げて設備コストの低減を図ることが可能とな
る。Alternatively, the above-mentioned extraction hole 16 is formed in the valve box 2,
If a pressure regulating valve 35 that operates with the hydraulic pressure of the secondary chamber 5 as a pilot is connected to the outlet 16 and a terminal device A for fire extinguishing is connected to the primary chamber 4, the simultaneous opening valve 1 will be connected to the fire extinguishing equipment. It can be used as a pressure control valve for the next pressure.
If the setting value of 5 is set to a sufficiently low value and the hydraulic pressure on the secondary side 21 is set to a low pressure, it becomes possible to reduce the pressure resistance grade of the terminal device A and the piping of the secondary side 21 and to reduce the equipment cost. .
【００３２】さらに弁箱２に上記取出孔１６を形成し、
この取出孔１６に一次室４の液圧をパイロットとして動
作する調圧弁を接続し、一次室４には消火用の端末機器
Ａを、二次室５には排液管２３を、それぞれ接続するこ
とによってこの一斉開放弁１を消火設備の一次圧の圧力
調整弁として使用できる等、この発明の一斉開放弁は種
々の消火システムに使用できるものである。Further, the above-mentioned extraction hole 16 is formed in the valve box 2,
A pressure regulating valve that operates using the hydraulic pressure of the primary chamber 4 as a pilot is connected to the outlet 16, a fire extinguishing terminal device A is connected to the primary chamber 4, and a drain pipe 23 is connected to the secondary chamber 5. As a result, the simultaneous opening valve 1 of the present invention can be used for various fire extinguishing systems, for example, the simultaneous opening valve 1 can be used as a pressure regulating valve for the primary pressure of fire extinguishing equipment.
【図１】この発明の一斉開放弁の実施例における縦断面
である。FIG. 1 is a longitudinal sectional view of a simultaneous release valve according to an embodiment of the present invention.
【図２】この発明の第１使用例を示すブロック図であ
る。FIG. 2 is a block diagram showing a first use example of the present invention.
【図３】この発明の第２使用例を示すブロック図であ
る。FIG. 3 is a block diagram showing a second use example of the present invention.
【図４】この発明の第３使用例を示すブロック図であ
る。FIG. 4 is a block diagram showing a third use example of the present invention.
【図５】この発明の第４使用例を示すブロック図であ
る。FIG. 5 is a block diagram showing a fourth use example of the present invention.
【図６】この発明の第５使用例を示すブロック図であ
る。FIG. 6 is a block diagram showing a fifth use example of the present invention.
１ 一斉開放弁 ２ 弁箱 ３ 主弁座 ４ 一次室 ５ 二次室 ７ 主弁体 ８ 主弁室 ９ 小孔 １３ 弁体 １４ ばね １５ 連通孔 １６ 取出孔 １９ スプリンクラヘッド ２２ 操作弁 ２８ 火災感知器 ３５ 調圧弁 Ａ 端末機器 DESCRIPTION OF SYMBOLS 1 Simultaneous release valve 2 Valve box 3 Main valve seat 4 Primary room 5 Secondary room 7 Main valve body 8 Main valve room 9 Small hole 13 Valve body 14 Spring 15 Communication hole 16 Extraction hole 19 Sprinkler head 22 Operating valve 28 Fire detector 35 Pressure regulating valve A Terminal equipment
───────────────────────────────────────────────────── フロントページの続き (58)調査した分野(Int.Cl.7，ＤＢ名) A62C 27/00 - 39/00 F16K 31/12 - 31/165 F16K 31/36 - 31/42 ──────────────────────────────────────────────────続 き Continued on the front page (58) Field surveyed (Int. Cl. 7 , DB name) A62C 27/00-39/00 F16K 31/12-31/165 F16K 31/36-31/42
Claims (6)
弁座と、弁ばねによって主弁座を閉じるようにした箱状
の主弁体と、主弁体と弁箱内壁の一部とによって二次室
内に形成された主弁室とを有している一斉開放弁におい
て、一次室と主弁室とを連通するように主弁体に設けら
れた小孔と、ばねによって小孔を閉じるようにした弁体
とを有し、主弁体の周壁部には、主弁室と二次室とを連
通するための連通孔を、弁箱には、主弁室の圧力液を弁
箱の外に取り出すための取出孔を、それぞれ形成できる
ようにしたことを特徴とする一斉開放弁。1. A main valve seat which divides the inside of a valve box into a primary chamber and a secondary chamber, a box-shaped main valve body in which the main valve seat is closed by a valve spring, a main valve body and an inner wall of the valve box. A simultaneous opening valve having a main valve chamber formed in the secondary chamber by a part of the main valve chamber, a small hole provided in the main valve body so as to communicate the primary chamber and the main valve chamber, and a spring. A valve body having a small hole closed by a valve body, a communication hole for communicating the main valve chamber and the secondary chamber in the peripheral wall portion of the main valve body, and a valve box having a communication hole for the main valve chamber. A simultaneous release valve characterized in that a discharge hole for discharging a pressure fluid out of a valve box can be formed.
二次室には閉鎖型のスプリンクラヘッドを接続したこと
を特徴とする請求項１の一斉開放弁。2. The communication valve according to claim 2, wherein the communication hole is formed in a peripheral wall of the main valve body.
2. The simultaneous release valve according to claim 1, wherein a closed sprinkler head is connected to the secondary chamber.
に接続した操作弁を、火災感知器の動作によって開くよ
うに構成し、二次室には消火用の端末機器を接続したこ
とを特徴とする請求項１の一斉開放弁。3. The valve hole is formed in the valve box, the operating valve connected to the hole is configured to be opened by operation of a fire detector, and a fire extinguishing terminal device is connected to the secondary chamber. 2. The simultaneous release valve according to claim 1, wherein:
に火災感知用の閉鎖型のスプリンクラヘッドを接続し、
二次室には消火用の端末機器を接続したことを特徴とす
る請求項１の一斉開放弁。4. A closed sprinkler head for fire detection is connected to the outlet hole formed in the valve box, and the outlet hole is connected to the outlet hole.
2. The simultaneous release valve according to claim 1, wherein a terminal device for fire extinguishing is connected to the secondary room.
に二次室の液圧をパイロットとして動作する調圧弁を接
続し、二次室には消火用の端末機器を接続したことを特
徴とする請求項１の一斉開放弁。5. The valve hole is formed with the above-mentioned outlet, a pressure regulating valve which operates as a pilot using the hydraulic pressure of the secondary chamber is connected to the outlet, and a fire extinguishing terminal device is connected to the secondary chamber. The simultaneous release valve according to claim 1, wherein:
に一次室の液圧をパイロットとして動作する調圧弁を接
続し、一次室には消火用の端末機器を、二次室には排液
管を、それぞれ接続したことを特徴とする請求項１の一
斉開放弁。6. The valve hole is formed in the valve hole, and a pressure regulating valve that operates as a pilot with the hydraulic pressure in the primary chamber connected to the hole, a terminal device for fire extinguishing in the primary chamber, and a terminal device in the secondary chamber. 2. The simultaneous release valve according to claim 1, wherein the drain pipes are respectively connected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP02407175A JP3131739B2 (en) | 1990-12-10 | 1990-12-10 | Simultaneous release valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP02407175A JP3131739B2 (en) | 1990-12-10 | 1990-12-10 | Simultaneous release valve |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH04210073A JPH04210073A (en) | 1992-07-31 |
| JP3131739B2 true JP3131739B2 (en) | 2001-02-05 |
Family
ID=18516798
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP02407175A Expired - Fee Related JP3131739B2 (en) | 1990-12-10 | 1990-12-10 | Simultaneous release valve |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3131739B2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101505897B1 (en) | 2013-10-31 | 2015-03-26 | 주식회사 에프씨인터내셔널 | Multi fire protection system with automated overflow preventing unit |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4790946B2 (en) * | 2001-09-28 | 2011-10-12 | 能美防災株式会社 | Release valve |
| JP2005124699A (en) * | 2003-10-22 | 2005-05-19 | Nohmi Bosai Ltd | Foam fire extinguishing equipment |
| JP4726944B2 (en) * | 2008-12-18 | 2011-07-20 | 千住スプリンクラー株式会社 | Pre-actuated sprinkler equipment |
| JP2009072642A (en) * | 2009-01-16 | 2009-04-09 | Senju Sprinkler Kk | Water flow detector and sprinkler system |
-
1990
- 1990-12-10 JP JP02407175A patent/JP3131739B2/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101505897B1 (en) | 2013-10-31 | 2015-03-26 | 주식회사 에프씨인터내셔널 | Multi fire protection system with automated overflow preventing unit |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH04210073A (en) | 1992-07-31 |
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