JP2858027B2 - Self-sealing valve for fire extinguishing equipment - Google Patents
Self-sealing valve for fire extinguishing equipmentInfo
- Publication number
- JP2858027B2 JP2858027B2 JP8525990A JP8525990A JP2858027B2 JP 2858027 B2 JP2858027 B2 JP 2858027B2 JP 8525990 A JP8525990 A JP 8525990A JP 8525990 A JP8525990 A JP 8525990A JP 2858027 B2 JP2858027 B2 JP 2858027B2
- Authority
- JP
- Japan
- Prior art keywords
- valve
- sealing
- self
- sealing material
- back pressure
- 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
- Lift Valve (AREA)
- Fire-Extinguishing By Fire Departments, And Fire-Extinguishing Equipment And Control Thereof (AREA)
Description
【発明の詳細な説明】 産業上の利用分野 この発明は、消化設備に関するもので、更に述べる
と、消化設備の自己シール弁式に関するものである。Description: FIELD OF THE INVENTION The present invention relates to digestion equipment, and more particularly to a self-sealing valve type of digestion equipment.
従来の技術 従来の消化設備には、第６図に示す様な自己シール式
弁が用いられている。この弁100では、閉弁状態におい
て一次室105の水圧が、弁体116に加わるとともに、２次
室106側に当接するシール材108の端部118aにも加わる。
そのため、シール材108の端部118aは、一次室105より圧
力の低い２次室106側に押されて弁座120に強く押し付け
られるるので、シール力が強化され、所謂自己シール作
用が発生する。2. Description of the Related Art A conventional digester uses a self-sealing valve as shown in FIG. In this valve 100, in the closed state, the water pressure in the primary chamber 105 is applied to the valve body 116 and also to the end 118a of the seal member 108 that contacts the secondary chamber 106.
Therefore, the end portion 118a of the sealing material 108 is pushed toward the secondary chamber 106 having a lower pressure than the primary chamber 105 and is strongly pressed against the valve seat 120, so that the sealing force is strengthened and a so-called self-sealing action occurs. .
発明が解決しようとする課題 従来例の自己シール式弁では、プッシュロッド124を
矢印A124方向に引き、レバー112を同方向に移動させ
て、ピンレバー113を弁体116から外すと開弁し、弁体11
6は鎖線の状態となる。Problems to be Solved by the Invention In the conventional self-sealing valve, the push rod 124 is pulled in the direction of arrow A124, the lever 112 is moved in the same direction, and when the pin lever 113 is removed from the valve body 116, the valve is opened. Body 11
6 becomes the state of the chain line.
そうすると、消化液Ｗは、一次室105側から２次室側1
06側に流れるが、その流れの途中においてその液Ｗの一
部は弁体116に衝突してその流れ方向が変更される。Then, the digestive juice W is transferred from the primary chamber 105 to the secondary chamber 1
Although the liquid W flows to the 06 side, part of the liquid W collides with the valve element 116 in the middle of the flow, and the flow direction is changed.
ところが、この衝突した液W1は、シール材の外面108b
に沿って流れるため、鍵状になっているシール材の端部
118aに衝突する。そのため、流れの圧力損失が大きくな
るとともに、該端部118aが振動屈曲などの無理な力を受
けるため破損し易くなる。However, the liquid W 1 that this collision, the outer surface 108b of the sealing member
The end of the seal material is keyed because it flows along
Collision with 118a. Therefore, the pressure loss of the flow increases, and the end portion 118a receives an excessive force such as vibration bending, so that the end portion 118a is easily broken.
この発明は、上記事情に鑑み、開弁時における流れの
圧力損失を少なくすることを目的とする。他の目的は、
長寿命の自己シール式弁を得ることである。The present invention has been made in view of the above circumstances, and has as its object to reduce pressure loss of a flow when a valve is opened. The other purpose is
The goal is to obtain a long-life self-sealing valve.
課題を解決するための手段 この発明は、弁体の内面と背圧空間を介して対向する
シール材と；該シール材の周縁を前記弁体に固定せしめ
るシール材押えと；該シール材の外面に対向する弁座
と；を有することにより前記目的を達成しようとするも
のである。Means for Solving the Problems The present invention relates to a seal member facing an inner surface of a valve body via a back pressure space; a seal member presser for fixing a peripheral edge of the seal member to the valve member; and an outer surface of the seal member. And a valve seat facing the object.
作用 閉弁状態において、一次室の消化液により背圧空間内
の流体が押圧されると、シール材の周縁部は弁座側に向
かって押圧されるので、シール力が強化される。又、開
弁状態において、一次室から２次室に消化液が流れる
と、該液の一部は弁体に衝突してその流れ方向が変えら
れる。この時シール材の外面は、平滑状態なので該液
は、弁体に衝突後シール材の外面に沿って円滑に流れ
る。In the closed state, when the fluid in the back pressure space is pressed by the digestive fluid in the primary chamber, the peripheral portion of the sealing material is pressed toward the valve seat, so that the sealing force is strengthened. Also, when the digestive fluid flows from the primary chamber to the secondary chamber in the valve open state, a part of the fluid collides with the valve body and the flow direction is changed. At this time, since the outer surface of the sealing material is in a smooth state, the liquid smoothly flows along the outer surface of the sealing material after colliding with the valve element.
実施例 この発明の実施例を添付図面により説明するが、同一
図面符号はその名称も機能も同一である。An embodiment of the present invention will be described with reference to the accompanying drawings, wherein the same reference numerals have the same names and the same functions.
第１実施例を第１図〜第３図により説明する。本体１
の弁座２には、アラームパイプ３と連通する流体検知孔
４が設けられ、又、この弁座２には、弁体５が着座して
いる。The first embodiment will be described with reference to FIGS. Body 1
Is provided with a fluid detection hole 4 communicating with the alarm pipe 3, and a valve element 5 is seated on the valve seat 2.
この弁体５の内面5aには背圧空間６を介して円環状の
シール材７が設けられている。An annular sealing member 7 is provided on the inner surface 5a of the valve element 5 via a back pressure space 6.
このシール材７の外周縁7cは、外側シール材押え８に
より、又、その中央部は中央シール材押え９により、そ
れぞれ弁体５に固着されている。この中央シール材押え
９は、外側シール材押え８よりも一次室10側寄りの位置
でシール材７を押えるので、シール材７は、第２図に示
す様に中央部に向かって下方に傾斜した状態となってい
る。このシール材７の中央側には一次室10と連通する流
体孔11が形成されている。The outer peripheral edge 7c of the sealing material 7 is fixed to the valve body 5 by an outer sealing material retainer 8, and the center portion thereof is fixed to a valve body 5 by a central sealing material retainer 9. Since the center sealing material presser 9 presses the sealing material 7 at a position closer to the primary chamber 10 than the outer sealing material presser 8, the sealing material 7 is inclined downward toward the center as shown in FIG. It is in a state where it has been done. A fluid hole 11 communicating with the primary chamber 10 is formed in the center of the sealing member 7.
弁体５のストッパ部12は、アーム13の下端に軸着した
ローラ14により押圧されている。このアーム13の上端は
回動自在に支持されており、又、その下端側にはピスト
ン15に固定されたロッド16が接続されている。The stopper portion 12 of the valve element 5 is pressed by a roller 14 that is axially attached to the lower end of the arm 13. An upper end of the arm 13 is rotatably supported, and a rod 16 fixed to a piston 15 is connected to a lower end thereof.
この自己シール式弁20を第３図に示す消化設備に配設
すると、火災が発生しない状態においては、ポンプ21の
駆動により水槽22内の消化液が一次圧遮断弁23を通り、
自己シール式弁20の一次室10に流れ込むが、弁体５がと
じているので２次室24に流入することはない。この時、
一次室10の消化液Ｗは流体孔11から背圧空間６内に浸入
し、シール材７を押圧するがシール材７の外周縁部が一
次室10より圧力の小さい２次室24側に当接しているの
で、シール材７は内面7aから外面7bに向かって押され、
弁座２に強く押し付けられる。そのため、強い自己シー
ル力が得られる。When the self-sealing valve 20 is disposed in the digestion equipment shown in FIG.
Although it flows into the primary chamber 10 of the self-sealing valve 20, it does not flow into the secondary chamber 24 because the valve body 5 is closed. At this time,
The digestive fluid W in the primary chamber 10 penetrates into the back pressure space 6 from the fluid hole 11 and presses the sealing material 7, but the outer peripheral edge of the sealing material 7 is applied to the side of the secondary chamber 24 having a lower pressure than the primary chamber 10. Because of the contact, the sealing material 7 is pushed from the inner surface 7a toward the outer surface 7b,
It is strongly pressed against the valve seat 2. Therefore, a strong self-sealing force is obtained.
又、シール材７は中央部に向かって下方に傾斜してい
るので、その中央部が押圧され弁体の内面5a側に近接し
ても流体検知孔４はシール材７から離間することがな
い。Further, since the sealing member 7 is inclined downward toward the center, the fluid detection hole 4 does not separate from the sealing member 7 even when the center is pressed and approaches the inner surface 5a side of the valve body. .
従って、流体検知孔４、即ち、弁座２の周縁以外の部
分も完全にシールすることができる。Therefore, the fluid detection hole 4, that is, the portion other than the peripheral edge of the valve seat 2 can be completely sealed.
次に、感知器30が火災を検知すると、火災信号が受信
機31に送られるとともに、この受信機31は電動ボール弁
32を開弁させる。Next, when the detector 30 detects a fire, a fire signal is sent to the receiver 31 and the receiver 31
Open valve 32.
そうすると、自己シール式弁20のシリンダ33の加圧室
内に１次側からの加圧液体が流入されるので、ピストン
15が矢印A15方向に移動し、ロッド16を同方向に引く。
そのため、アーム13が矢印A15方向に引かれるのでロー
ラ14は、弁体のストッパ部12から外れる。このようにし
てロック状態が解除されると、弁体15は一次室10内の消
化液Ｗにより押圧されて回転するので開弁し、鎖線で示
す状態となる。この状態において、一次室10側から２次
室24側に流入する消化液Ｗの一部W1は、弁体５に衝突し
た後、平滑なシール材７の外面7bに案内されながら、円
滑に流れ方向を変えて２次側配管34内に流れ込む。そし
て、２次側配管34内が満水となって所定圧になると、圧
力空気槽の圧力スイッチPSがオフして制御盤35を作動さ
せ、ポンプ21の駆動を停止させる。次に、閉鎖型スプリ
ンクラ40が開放されると、２次室側配管34内の消化液は
該スプリンクラ40から噴射される。Then, the pressurized liquid from the primary side flows into the pressurized chamber of the cylinder 33 of the self-sealing valve 20, so that the piston
15 moves in the direction of arrow A15, and pulls the rod 16 in the same direction.
Therefore, since the arm 13 is pulled in the direction of the arrow A15, the roller 14 comes off the stopper portion 12 of the valve body. When the locked state is released in this manner, the valve body 15 is rotated by being pressed by the digestive fluid W in the primary chamber 10, so that the valve is opened, and the state shown by the chain line is established. In this state, a part W 1 of the digestive juice W flowing from the primary chamber 10 side to the secondary chamber 24 side collides with the valve body 5, and is smoothly guided while being guided by the smooth outer surface 7 b of the sealing member 7. The flow direction is changed and flows into the secondary pipe 34. Then, when the inside of the secondary pipe 34 becomes full and reaches a predetermined pressure, the pressure switch PS of the pressurized air tank is turned off, the control panel 35 is operated, and the driving of the pump 21 is stopped. Next, when the closed sprinkler 40 is opened, the digestive fluid in the secondary chamber side pipe 34 is injected from the sprinkler 40.
そうすると、圧力空気槽の圧力が低下し、圧力スイッ
チPSがオンして制御盤35を作動させポンプ21を駆動させ
る。そのため、水槽22内の消化液Ｗは、２次室側配管内
に圧送されて開放されているスプリンクラ40から噴射さ
れる。Then, the pressure in the pressurized air tank is reduced, the pressure switch PS is turned on, the control panel 35 is operated, and the pump 21 is driven. Therefore, the digestion liquid W in the water tank 22 is injected from the sprinkler 40 which is pressure-fed into the secondary chamber side pipe and opened.
なお、開弁により流水検知孔４が開き、消化液Ｗがア
ラームパイプ３に入って図示しないスイッチをオンさせ
るので、アラームシステムが作動し警報が発せられる。When the valve is opened, the flowing water detection hole 4 is opened, and the digestive fluid W enters the alarm pipe 3 and turns on a switch (not shown), so that the alarm system is activated and an alarm is issued.
この発明の実施例は、上記に限定されるものではな
く、例えば、シール材７に流体孔11を設けないで、第４
図、第５図に示す様に、背圧空間６を密閉してもよい。
第４図は一次室10に消化液が充填されていない時、即
ち、無圧状態を示すがこの状態では、背圧空間６内の流
動体50、例えば、水やオイルは圧縮されないので、シー
ル材７の外面7bはほぼ水平状となって弁座２に当接して
いる。一次室10内に消化液Ｗが充填されると、第５図に
示す様にシール材７は押圧され、背圧空間６内の流動体
50は２次室24と当接するシール材の外周縁7c側を強く押
圧する。そのため、該外周縁7c側は弁座２に強く押し付
けられるので、強い自己シール力が発生する。The embodiment of the present invention is not limited to the above.
As shown in FIG. 5 and FIG. 5, the back pressure space 6 may be closed.
FIG. 4 shows a state in which the primary chamber 10 is not filled with digestive juice, that is, a no-pressure state. In this state, the fluid 50 in the back pressure space 6, for example, water or oil is not compressed, so that the sealing is performed. The outer surface 7b of the member 7 is substantially horizontal and abuts on the valve seat 2. When the digestive juice W is filled in the primary chamber 10, the sealing material 7 is pressed as shown in FIG.
Reference numeral 50 strongly presses the outer peripheral edge 7c side of the sealing material in contact with the secondary chamber 24. Therefore, the outer peripheral edge 7c side is strongly pressed against the valve seat 2, so that a strong self-sealing force is generated.
発明の効果 この発明に係る消化設備の自己シール式弁は、以上の
様に構成したので、シール材の外面が平滑な状態とな
る。そのため、従来例と異なり開弁時において消化液が
シール材の外面に沿って円滑に流れるので、流れの圧力
損失を少なくすることができると共に、シール材の端部
に振動屈曲などの無理な力が加わらないので破損しな
い。従って、従来例に比べ寿命を長くすることができ
る。Effect of the Invention The self-sealing valve of the digestion facility according to the present invention is configured as described above, so that the outer surface of the sealing material is in a smooth state. Therefore, unlike the conventional example, when the valve is opened, the digestive fluid flows smoothly along the outer surface of the sealing material, so that the pressure loss of the flow can be reduced, and an excessive force such as vibration bending is applied to the end of the sealing material. It does not break because it does not add. Therefore, the life can be extended as compared with the conventional example.
第１図〜第３図はこの発明の実施例で、第１図は縦断面
図、第２図は第１図の要部拡大図、第３図は消化設備の
系統図、第４図、第５図は他の実施例を示す図で、第４
図は無圧力時の自己シール式弁の要部を示す縦断面図、
第５図は第４図の他の状態を示す縦断面図、第６図は従
来例を示す縦断面図を示す。 ２……弁座 ５……弁体 ６……背圧空間 ７……シール材 ８……外側シール材押え ９……中央シール材押え1 to 3 show an embodiment of the present invention. FIG. 1 is a longitudinal sectional view, FIG. 2 is an enlarged view of a main part of FIG. 1, FIG. 3 is a system diagram of digestion equipment, FIG. FIG. 5 is a view showing another embodiment, and FIG.
The figure is a longitudinal sectional view showing the main part of the self-sealing valve at no pressure,
FIG. 5 is a longitudinal sectional view showing another state of FIG. 4, and FIG. 6 is a longitudinal sectional view showing a conventional example. 2 ... Valve seat 5 ... Valve 6 ... Back pressure space 7 ... Seal material 8 ... Outer seal material retainer 9 ... Central seal material retainer
Claims (4)
ール材と；該シール材の周縁を前記弁体に固定せしめる
シール材押えと；該シール材の外面に対向する弁座と；
を有する消化設備の自己シール式弁。A sealing member opposed to an inner surface of the valve body via a back pressure space; a sealing member retainer for fixing a peripheral edge of the sealing material to the valve body; and a valve seat opposed to an outer surface of the sealing member. ;
Self-sealing valve for digestion equipment having a.
する請求項第１記載の消化設備の自己シール式弁。2. The self-sealing valve according to claim 1, wherein the back pressure space is sealed.
することを特徴とする請求項第１記載の消化設備の自己
シール式弁。3. The self-sealing valve of a digestion facility according to claim 1, wherein the back pressure space has a fluid hole communicating with the primary chamber.
側に変位していることを特徴とする請求項第１、２又は
３記載の消化設備の自己シール式弁。4. The self-sealing type valve for digestion equipment according to claim 1, wherein a central portion of the sealing material is displaced to a primary side from an end portion thereof.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8525990A JP2858027B2 (en) | 1990-03-30 | 1990-03-30 | Self-sealing valve for fire extinguishing equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8525990A JP2858027B2 (en) | 1990-03-30 | 1990-03-30 | Self-sealing valve for fire extinguishing equipment |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH03284269A JPH03284269A (en) | 1991-12-13 |
| JP2858027B2 true JP2858027B2 (en) | 1999-02-17 |
Family
ID=13853576
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP8525990A Expired - Fee Related JP2858027B2 (en) | 1990-03-30 | 1990-03-30 | Self-sealing valve for fire extinguishing equipment |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2858027B2 (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6557645B1 (en) | 2000-06-13 | 2003-05-06 | Grinnell Corporation | Dry pipe valve for fire protection sprinkler system |
| JP2008099871A (en) * | 2006-10-19 | 2008-05-01 | Itachibori Mfg Co Ltd | Automatic alarm valve for fire extinguishing equipment |
| JP2009072642A (en) * | 2009-01-16 | 2009-04-09 | Senju Sprinkler Kk | Water flow detector and sprinkler system |
| CN104771855A (en) * | 2015-04-07 | 2015-07-15 | 常景泓 | Repeated on/off preacting automatic water-spraying fire-extinguishing device |
-
1990
- 1990-03-30 JP JP8525990A patent/JP2858027B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPH03284269A (en) | 1991-12-13 |
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