JPH05240361A - Pressure regulating valve - Google Patents

Pressure regulating valve

Info

Publication number
JPH05240361A
JPH05240361A JP4345492A JP4345492A JPH05240361A JP H05240361 A JPH05240361 A JP H05240361A JP 4345492 A JP4345492 A JP 4345492A JP 4345492 A JP4345492 A JP 4345492A JP H05240361 A JPH05240361 A JP H05240361A
Authority
JP
Japan
Prior art keywords
basket
rubber sleeve
pressure
secondary side
valve
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.)
Pending
Application number
JP4345492A
Other languages
Japanese (ja)
Inventor
Teruo Kizu
照雄 木津
Hiroshi Koiwa
博史 小岩
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Kyosei Corp
Original Assignee
Kyosei Corp
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Kyosei Corp filed Critical Kyosei Corp
Priority to JP4345492A priority Critical patent/JPH05240361A/en
Publication of JPH05240361A publication Critical patent/JPH05240361A/en
Pending legal-status Critical Current

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  • Control Of Fluid Pressure (AREA)

Abstract

PURPOSE:To provide self-sealing effect by carrying out maintenance of a rubber sleeve type pressure requlating valve, easily in a short period of time. CONSTITUTION:Slits 11, 12 are provided separately in the vertical axial direction on a tapered circumferential wall 9 of a basket 8 which is reduced in the diameter as it goes upward, and a primary side of a fluid is connected to the upper slit 11 and a secondary side is connected to the lower slit 12 in a separated manner in the basket 8, and a rubber sleeve 13, which is formed into an inner shape slightly smaller than an external shape of the basket 8, and which is tapered with the upper end closed, is externally installed in the outside of the basket 8, while a pilot pressure chamber 16 surrounding the outer periphery of the rubber sleeve 13 is formed on the inside of a cover 14 coating the outside of the basket 8. When the secondary side pressure is high, the rubber sleeve 13 is adhered to the outer periphery of the basket 8, and a closed valve condition is provided where the communication of the upper and lower slits 11 and 12 is cut. When the secondary side pressure is reduced, the rubber sleeve 13 is pressed open by the primary side pressure, and a valve open condition is provided, where both of the slits 11 and 12 are communicated together.

Description

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

【0001】[0001]

【産業上の利用分野】この発明は、二次側圧力の変動に
応答して開閉するゴムスリーブ式の圧力調整弁、更に詳
しくは、流体の通過面積が大きく、流体の流入と流出の
方向を同一方向に取れ、パイプラインより外さずにメン
テナンスが可能な圧力調整弁に関する。
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a rubber sleeve type pressure regulating valve which opens and closes in response to fluctuations in secondary side pressure, and more specifically, has a large fluid passage area and which is capable of controlling the inflow and outflow directions of fluid. The present invention relates to a pressure control valve that can be taken in the same direction and can be maintained without removing it from a pipeline.

【0002】[0002]

【従来の技術】流体の二次側圧力の変動に応答して開閉
動し、二次側圧力を調整する圧力調整弁として、特公昭
49−35295号で示されるようなゴムスリーブ式
や、特開昭61−175376号で示されるダイヤフラ
ム式が提案されている。
2. Description of the Related Art As a pressure adjusting valve for opening and closing in response to fluctuations in the secondary pressure of a fluid to adjust the secondary pressure, a rubber sleeve type as shown in Japanese Patent Publication No. 49-35295 or a special pressure adjusting valve is used. The diaphragm type shown in Kaisho 61-175376 has been proposed.

【0003】[0003]

【発明が解決しようとする課題】ところで、前者のゴム
スリーブ式の圧力調整弁は、流体の流入と流出方向が相
対軸方向にあり、パイプラインに直接設置するウエハー
型となっているので、メンテナンス時などに圧力調整弁
のすべてをパイプラインより取外す必要があり、このた
め作業が煩雑で配管系全体に負担がかかり、取付けに不
備があると接合部からの漏洩の恐れがあり、安全性にか
けるという問題がある。
By the way, the former rubber sleeve type pressure regulating valve has a relative axial direction of inflow and outflow of fluid, and is of a wafer type which is directly installed in a pipeline. It is necessary to remove all the pressure control valves from the pipeline at times such as when doing so, the work is complicated and burdens the entire piping system. There is a problem of calling.

【0004】また、後者のダイヤフラム式の圧力調整弁
は、弁本体をパイプラインから取外すことなくメンテナ
ンスが行なえるという利点がある反面、ゴムスリーブ式
に比べて流体の通過容量が少なく、シール性能に関して
もゴム自身のもつ収縮性が利用できず、セルフシール効
果が期待できないという問題がある。
The latter diaphragm type pressure regulating valve has the advantage that maintenance can be performed without removing the valve body from the pipeline, but on the other hand, it has a smaller fluid passage capacity than the rubber sleeve type and has a better sealing performance. However, there is a problem that the self-sealing effect cannot be expected because the shrinkability of rubber itself cannot be used.

【0005】そこでこの発明は、ゴムスリーブ式であり
ながらメンテナンスが全体をパイプラインより取外すこ
となく行なえ、しかも流体通過容量が多く、セルフシー
ル効果を備え、ゴムスリーブ式の特徴を生かすことがで
きる圧力調整弁を提供することを課題としている。
Therefore, according to the present invention, although the rubber sleeve type is used, the entire maintenance can be carried out without removing it from the pipeline, the fluid passage capacity is large, the self-sealing effect is provided, and the characteristics of the rubber sleeve type can be utilized. The challenge is to provide a regulating valve.

【0006】[0006]

【課題を解決するための手段】上記のような課題を解決
するため、この発明は、周囲がパイロット圧力室で囲ま
れるバスケットのテーパ状周壁にスリットを軸方向に分
離して設け、このバスケット内において軸方向に分離さ
れたスリットの一方に流体の一次側を同他方に流体の二
次側を接続し、前記バスケットの外側に一方が閉じられ
た膨脹可能なテーパ状のゴムスリーブを装着した構成を
採用したものである。
In order to solve the above problems, the present invention provides slits axially separated on a tapered peripheral wall of a basket surrounded by pilot pressure chambers. In which the primary side of the fluid is connected to one of the slits axially separated from each other and the secondary side of the fluid is connected to the other side, and an inflatable tapered rubber sleeve, one of which is closed, is attached to the outside of the basket. Is adopted.

【0007】[0007]

【作用】パイロット圧力室内の圧力が一次側流体の圧力
と等しいとき、ゴムスリーブはバスケットの外周面に密
着し、軸方向に分離されたスリットを共に閉鎖し、一次
側流体が二次側に流出しない閉弁状態になる。
[Function] When the pressure in the pilot pressure chamber is equal to the pressure of the primary side fluid, the rubber sleeve is in close contact with the outer peripheral surface of the basket and closes the slits separated in the axial direction, and the primary side fluid flows out to the secondary side. Not closed The valve is closed.

【0008】二次側圧力の低下によってパイロット圧力
室の圧力が下がると、一次側流体の圧力によってゴムス
リーブが押し開かれた開弁状態になり、ゴムスリーブ内
において両スリットが連通し、一次側流体が両スリット
を通って二次側に流出し、二次側圧力の上昇によりパイ
ロット圧力室の圧力が一次側圧力にまで上昇すると、ゴ
ムスリーブはバスケットに密着する閉弁状態になる。
When the pressure in the pilot pressure chamber decreases due to the decrease in the secondary side pressure, the rubber sleeve is pushed open by the pressure of the primary side fluid, and both slits communicate with each other in the rubber sleeve. When the fluid flows out to the secondary side through both slits and the pressure in the pilot pressure chamber rises to the primary side pressure due to the increase in the secondary side pressure, the rubber sleeve is in a valve closed state in which it is in close contact with the basket.

【0009】[0009]

【実施例】以下、この発明の実施例を添付図面に基づい
て説明する。
Embodiments of the present invention will be described below with reference to the accompanying drawings.

【0010】図1のように、弁本体1はT字管を用いた
二次側流出管2の内部に90°のエルボを用いた一次側
流入管3を組込んだ二重構造に形成され、流出管2の下
部が流出口4で側部が流入口5となり、流出口4及び流
入口5は各々フランジ6、7でパイプラインと接続する
ようになっている。
As shown in FIG. 1, the valve body 1 is formed in a double structure in which a primary side inlet pipe 3 using a 90 ° elbow is incorporated in a secondary side outlet pipe 2 using a T-shaped pipe. The lower portion of the outflow pipe 2 serves as an outflow port 4 and the side portion serves as an inflow port 5, and the outflow port 4 and the inflow port 5 are connected to a pipeline by flanges 6 and 7, respectively.

【0011】上記弁本体1上に設置するバスケット8
は、円筒状の周壁9が上端小径のテーパ状に形成されて
上端が閉鎖され、下部外周にフランジ10が周設されて
いると共に、周壁9には上下方向の中央部を境にして上
下に分離されたスリット11、12が設けられている。
A basket 8 installed on the valve body 1
The cylindrical peripheral wall 9 is formed in a tapered shape with a small diameter at the upper end, the upper end is closed, and a flange 10 is provided around the lower outer periphery, and the peripheral wall 9 is vertically arranged with a central portion in the vertical direction as a boundary. Separated slits 11 and 12 are provided.

【0012】上記スリット11、12は、バスケット8
の上下軸方向に沿って長く、図4のように周壁9の円周
方向に一定の間隔で全周面にわたって設けられている。
The slits 11 and 12 are formed in the basket 8
It is long along the up-down axis direction and is provided over the entire circumferential surface at regular intervals in the circumferential direction of the peripheral wall 9 as shown in FIG.

【0013】前記バスケット8の外側に外嵌装着するゴ
ムスリーブ13は、上端を閉鎖したテーパ状周壁の下端
周囲に抜け止め用の突起13aを折り返し状に周設した
構造になっており、バスケット8の外形に対してその内
形が少し小さくなるように形成され、バスケット8への
外装時に緊張状となってバスケット8の外面に密着し、
スリット11、12に対するセルフシール効果を発揮す
るようになっている。
The rubber sleeve 13 which is fitted on the outside of the basket 8 has a structure in which a protrusion 13a for retaining is provided around the lower end of a tapered peripheral wall whose upper end is closed in a folded manner. The inner shape of the basket 8 is slightly smaller than the outer shape of the basket 8.
The self-sealing effect with respect to the slits 11 and 12 is exhibited.

【0014】前記バスケット8の外側を被うカバー14
は下部外周にフランジ15を備え、内部周壁はゴムスリ
ーブ13の周壁との間にパイロット圧力室16を形成す
ると共に、周壁の途中にパイロット圧力室16と連通す
るパイロット圧力流入口17が設けられている。
A cover 14 covering the outside of the basket 8.
Is provided with a flange 15 on the outer circumference of the lower part, and an inner peripheral wall forms a pilot pressure chamber 16 between the peripheral wall of the rubber sleeve 13 and a pilot pressure inlet 17 communicating with the pilot pressure chamber 16 in the middle of the peripheral wall. There is.

【0015】カバー14は、フランジ15、18によっ
て二次側流出管2の上端にボルト19の結合で固定さ
れ、バスケット8のフランジ10とゴムスリーブ13の
突起13aとは重なり状態で、両フランジ15と18間
に挾圧固定されている。
The cover 14 is fixed to the upper end of the secondary side outflow pipe 2 by the flanges 15 and 18 by connecting a bolt 19 so that the flange 10 of the basket 8 and the projection 13a of the rubber sleeve 13 overlap each other. It is clamped between 18 and 18.

【0016】前記一次側流入管3の上方に延びる上端延
長部3aは、バスケット8の略中央部で上下スリット1
1と12間の境界部分の位置に上端部外周が水密状に嵌
合固定されている。従って、上部のスリット11は、一
次側と連通し、下部のスリット12は二次側と連通する
ように分離される。
An upper end extension portion 3a extending above the primary side inflow pipe 3 is provided at a substantially central portion of the basket 8 and has a vertical slit 1a.
The outer periphery of the upper end is fitted and fixed in a watertight manner at the position of the boundary between 1 and 12. Therefore, the upper slit 11 communicates with the primary side and the lower slit 12 communicates with the secondary side.

【0017】この発明の圧力調整弁は上記のような構成
であり、次に図2と図3を主体に用いて作用を説明す
る。
The pressure regulating valve of the present invention has the above-mentioned structure, and its operation will be described with reference to FIGS. 2 and 3.

【0018】図2のように、流入口5と流出口4にパイ
プラインの一次側21と二次側22を接続し、一次側2
1と二次側22をつなぐ制御路23の途中にパイロット
ガバナ24とオリフィス25を設け、この制御路23の
パイロットガバナ24とオリフィス25の間がパイロッ
ト圧力流入口17に接続されている。
As shown in FIG. 2, the primary side 21 and the secondary side 22 of the pipeline are connected to the inflow port 5 and the outflow port 4, and the primary side 2
A pilot governor 24 and an orifice 25 are provided in the middle of a control path 23 connecting the primary side 22 and the secondary side 22, and the pilot governor 24 and the orifice 25 of the control path 23 are connected to the pilot pressure inlet 17.

【0019】図2は閉弁時の状態を示し、二次側22の
圧力上昇によってパイロットガバナ24が閉じ、一次側
21の圧力流体がオリフィス25を通ってパイロット圧
力室16内に流入し、ゴムスリーブ13の周壁外周に作
用する圧力と下部スリット12の部分からゴムスリーブ
13の内周に作用する二次側圧力との差圧と、ゴムスリ
ーブ13のもつ収縮性によってバスケット8の外面に圧
着し、スリット11、12を閉じている。従って、一次
側流体の二次側への流出はなく、図1左側半分はこの閉
弁状態を示している。
FIG. 2 shows the state when the valve is closed. The pilot governor 24 is closed due to the pressure increase on the secondary side 22, the pressure fluid on the primary side 21 flows into the pilot pressure chamber 16 through the orifice 25, and the rubber Due to the differential pressure between the pressure acting on the outer peripheral wall of the sleeve 13 and the secondary pressure acting on the inner circumference of the rubber sleeve 13 from the lower slit 12, the rubber sleeve 13 contracts to press the outer surface of the basket 8. , The slits 11 and 12 are closed. Therefore, there is no outflow of the primary side fluid to the secondary side, and the left half of FIG. 1 shows this valve closed state.

【0020】次に、二次側22の圧力が低下すると、パ
イロットガバナ24が開となり、パイロット圧力室16
内の作動圧力が二次側22に流出し、パイロット圧力室
16の圧力が低下すると、上部スリット11の部分でゴ
ムスリーブ13の内部に作用している一次側圧力により
ゴムスリーブ13はカバー14側に膨脹し、これによっ
て図3の如く、ゴムスリーブ13はバスケット8の外面
から離れた開弁状態となり、一次側流体は上部スリット
11から下部スリット12にゴムスリーブ13の内部を
通って流出する。図1の右側半分は上記開弁状態を示
し、一次側流体は二次側22に流出する。
Next, when the pressure on the secondary side 22 decreases, the pilot governor 24 opens and the pilot pressure chamber 16
When the working pressure in the inner side flows out to the secondary side 22 and the pressure in the pilot pressure chamber 16 decreases, the rubber sleeve 13 is covered by the primary side pressure acting on the inside of the rubber sleeve 13 at the upper slit 11 side. As a result, the rubber sleeve 13 is opened from the outer surface of the basket 8 as shown in FIG. 3, and the primary side fluid flows from the upper slit 11 to the lower slit 12 through the inside of the rubber sleeve 13. The right half of FIG. 1 shows the valve open state, and the primary side fluid flows out to the secondary side 22.

【0021】二次側22の圧力が上昇するとパイロット
ガバナ24が閉じ、オリフィス25より一次側圧力がパ
イロット圧力室16内に供給され、ゴムスリーブ13は
一次側圧力と自身の収縮によりバスケット8の外面に押
し付けられ、閉弁状態になって一次側流体の流出を停止
する。
When the pressure on the secondary side 22 rises, the pilot governor 24 closes, the primary side pressure is supplied from the orifice 25 into the pilot pressure chamber 16, and the rubber sleeve 13 contracts by the primary side pressure and itself to the outer surface of the basket 8. Is pressed against the valve to close the valve and stop the outflow of the primary side fluid.

【0022】なお、実施例では、上部スリット11を一
次側、下部スリット12を二次側としたが、流体の流
入、流出方向はこれと逆にしてもよい。
In the embodiment, the upper slit 11 is on the primary side and the lower slit 12 is on the secondary side, but the inflow and outflow directions of the fluid may be reversed.

【0023】[0023]

【効果】以上のように、この発明によると、流体の流入
と流出方向を同一方向にでき、メンテナンス時にはカバ
ーを外すだけでゴムスリーブの交換が行なえ、メンテナ
ンスが容易で短時間に行なえるようになる。
As described above, according to the present invention, the inflow and outflow directions of the fluid can be made the same direction, and the rubber sleeve can be replaced by simply removing the cover at the time of maintenance, so that maintenance can be performed easily and in a short time. Become.

【0024】また、パイプラインより弁本体を外すこと
なくメンテナンスが行なえ、配管部よりの漏洩もなく、
安全性が高い。
Further, maintenance can be performed without removing the valve main body from the pipeline, and there is no leakage from the piping section.
High safety.

【0025】更に、テーパ状のゴムスリーブを採用した
ので流体の通過容量が大きくなると共に、ゴム自身がも
つ収縮性を利用してのセルフシール効果もある。
Further, since the tapered rubber sleeve is adopted, the passage capacity of the fluid is increased and at the same time, there is a self-sealing effect by utilizing the contractibility of the rubber itself.

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

【図1】この発明の圧力調整弁を示す縦断面図FIG. 1 is a vertical sectional view showing a pressure regulating valve of the present invention.

【図2】同上の閉弁状態を示す作動説明図FIG. 2 is an operation explanatory diagram showing a valve closed state of the above.

【図3】同じく開弁状態を示す作動説明図FIG. 3 is an operation explanatory view showing a valve open state in the same manner.

【図4】バスケットの横断平面図FIG. 4 is a transverse plan view of the basket.

【符号の説明】[Explanation of symbols]

1 弁本体 2 二次側流出管 3 一次側流入管 8 バスケット 9 周壁 11、12 スリット 13 ゴムスリーブ 14 カバー 16 パイロット圧力室 1 Valve Main Body 2 Secondary Side Outflow Pipe 3 Primary Side Inflow Pipe 8 Basket 9 Circumferential Walls 11, 12 Slit 13 Rubber Sleeve 14 Cover 16 Pilot Pressure Chamber

Claims (1)

【特許請求の範囲】[Claims] 【請求項1】 周囲がパイロット圧力室で囲まれるバス
ケットのテーパ状周壁にスリットを軸方向に分離して設
け、このバスケット内において軸方向に分離されたスリ
ットの一方に流体の一次側を同他方に流体の二次側を接
続し、前記バスケットの外側に一方が閉じられた膨脹可
能なテーパ状のゴムスリーブを装着した圧力調整弁。
1. A slit is axially separated on a tapered peripheral wall of a basket surrounded by a pilot pressure chamber, and one of the slits axially separated in the basket has the primary side of the fluid on the other side. A pressure regulating valve in which a secondary side of the fluid is connected to the inside of the basket, and an inflatable tapered rubber sleeve, one of which is closed, is attached to the outside of the basket.
JP4345492A 1992-02-28 1992-02-28 Pressure regulating valve Pending JPH05240361A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP4345492A JPH05240361A (en) 1992-02-28 1992-02-28 Pressure regulating valve

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP4345492A JPH05240361A (en) 1992-02-28 1992-02-28 Pressure regulating valve

Publications (1)

Publication Number Publication Date
JPH05240361A true JPH05240361A (en) 1993-09-17

Family

ID=12664155

Family Applications (1)

Application Number Title Priority Date Filing Date
JP4345492A Pending JPH05240361A (en) 1992-02-28 1992-02-28 Pressure regulating valve

Country Status (1)

Country Link
JP (1) JPH05240361A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2005523408A (en) * 2002-04-18 2005-08-04 ノヴァメディックス ディストリビューション リミテッド Fluid control valve
US7581712B2 (en) 2004-01-29 2009-09-01 Asahi Organic Chemicals Industry Co., Ltd. Valve

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2005523408A (en) * 2002-04-18 2005-08-04 ノヴァメディックス ディストリビューション リミテッド Fluid control valve
JP4806819B2 (en) * 2002-04-18 2011-11-02 コヴィディエン・アクチェンゲゼルシャフト Fluid control valve
US7581712B2 (en) 2004-01-29 2009-09-01 Asahi Organic Chemicals Industry Co., Ltd. Valve

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