JP2000179726A - Valve for shutting out fluid at the time of emergency - Google Patents
Valve for shutting out fluid at the time of emergencyInfo
- Publication number
- JP2000179726A JP2000179726A JP10352427A JP35242798A JP2000179726A JP 2000179726 A JP2000179726 A JP 2000179726A JP 10352427 A JP10352427 A JP 10352427A JP 35242798 A JP35242798 A JP 35242798A JP 2000179726 A JP2000179726 A JP 2000179726A
- Authority
- JP
- Japan
- Prior art keywords
- cylinder
- fluid
- ram
- valve
- cone
- 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
- Lift Valve (AREA)
- Safety Valves (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は火薬の推進力により
流体の流路を遮断する緊急遮断弁に関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an emergency shut-off valve for shutting off a flow path of a fluid by a propelling force of an explosive.
【０００２】[0002]
【従来の技術】各種工作機器の動力源として使用されて
いる加圧エアーの流路や、航空機、ロケット、ミサイ
ル、魚雷といった機器の燃料や酸化剤、蒸気を通してい
る気体、液体の流路を瞬時に遮断する遮断弁は、火薬類
の燃焼や爆発の推進力で閉弁している。これらの遮断弁
は、図３に示すような構造であり、パワーカートリッジ
３に内蔵された火薬が爆発するとそのガス圧によってラ
ム２が本体筒１内を摺動して進み、その先端の凸錐部分
２ａが流体の流路Ｘ（入口孔４→出口孔５）の孔５の周
囲の凹錐１ａに嵌入して流体Ｘを遮断する。2. Description of the Related Art The flow path of pressurized air used as a power source for various machine tools and the flow path of gas and liquid passing through fuel, oxidizer, and vapor of equipment such as aircraft, rockets, missiles, and torpedoes are instantaneous. The shutoff valve is closed by the propulsion of explosive combustion and explosion. These shut-off valves have a structure as shown in FIG. 3, and when the explosive contained in the power cartridge 3 explodes, the gas pressure causes the ram 2 to slide in the main body cylinder 1 and advance, and the convex cone at the tip thereof The portion 2a fits into the concave cone 1a around the hole 5 of the fluid flow path X (the inlet hole 4 → the outlet hole 5) to block the fluid X.
【０００３】本体筒１は、通常、ステンレス鋼、アルミ
ニウム、アルミニウム合金などの金属鋼で構成されてい
る。航空機、ロケット、ミサイル、魚雷等に装備される
遮断弁では、軽量化を目途してアルミニウム、アルミニ
ウム合金で構成されることが多い。これらアルミニウム
やアルミニウム合金は、比較的軟らかい一方で粘りがあ
るため、本体筒１内をラム２が摺動する際、いわゆるか
じりを生じ、動作ミスにつながることがある。またアル
ミニウム等は経年により錆びつきが出ることがあり、や
はり遮断弁の動作ミスにつながることがあり、かかる動
作ミスは大きな二次災害を招来するおそれがある。その
ような事故を防ぐためアルミニウム等の本体筒１内に硬
質な表面層を形成するため化成皮膜や陽極酸化皮膜処理
を施している。ところがアルミニウム等の軟質な基体の
表面に硬質の被膜がかかっているだけなので、ラム２が
急激に摺動する際、本体筒１の内壁の皮膜を削り取って
しまい、その膜片が本体筒１の凹錐壁１ａとラム２の凸
錐壁２ａとの間に入って気体や液体が漏洩し、遮断が不
完全になってしまう。[0003] The main body tube 1 is usually made of metal steel such as stainless steel, aluminum, or aluminum alloy. Shut-off valves mounted on aircraft, rockets, missiles, torpedoes, etc. are often made of aluminum or aluminum alloy in order to reduce weight. These aluminum and aluminum alloys are relatively soft but sticky, so that when the ram 2 slides in the main body tube 1, so-called galling occurs, which may lead to an operation error. In addition, aluminum and the like may rust over time, which may also lead to an operation error of the shutoff valve, and such an operation error may cause a large secondary disaster. In order to prevent such an accident, a chemical conversion coating or an anodic oxide coating is applied to form a hard surface layer in the main body tube 1 made of aluminum or the like. However, since only a hard coating is applied to the surface of a soft base such as aluminum, when the ram 2 slides abruptly, the coating on the inner wall of the main body cylinder 1 is scraped off. Gases and liquids leak between the concave conical wall 1a and the convex conical wall 2a of the ram 2, resulting in incomplete blocking.
【０００４】[0004]
【発明が解決しようとする課題】本発明はこのような問
題点を解消するためなされたもので、動作ミスがなく、
また流体を漏洩なく完全に遮断できる緊急時用流体遮断
弁を提供することを目的とする。SUMMARY OF THE INVENTION The present invention has been made to solve such a problem, and has no operation error.
It is another object of the present invention to provide an emergency fluid shutoff valve capable of completely shutting off fluid without leakage.
【０００５】[0005]
【課題を解決するための手段】前記の目的を達成するた
めになされた本発明を適用する緊急時用流体遮断弁は、
実施例に対応する図1に示すように、流体の流路を構成
する筒内１に、先端側に凸錐形２ａを持つラム２が火薬
類を内装したパワーカートリッジ３の出力部に配置さ
れ、筒１の内壁の一部が凸錐形２ａと填り合う凹錐形１
ａであり、パワーカートリッジ３の出力により推進した
ラム２が筒１に密に嵌入して（図２参照）流体の流れを
遮断する弁であって、ラム２の先端凸錐２ａに外周囲方
向の凹溝２ｂが形成されている。In order to achieve the above object, an emergency fluid shutoff valve to which the present invention is applied is provided.
As shown in FIG. 1 corresponding to the embodiment, a ram 2 having a convex conical shape 2a on the tip side is disposed in an output portion of a power cartridge 3 containing explosives in a cylinder 1 constituting a fluid flow path. A concave cone 1 in which a part of the inner wall of the tube 1 is fitted with the convex cone 2a
a, which is a valve for closing the ram 2 propelled by the output of the power cartridge 3 into the cylinder 1 (see FIG. 2) to shut off the flow of the fluid. Is formed.
【０００６】ラムの先端凸錐の外周囲方向に設けられる
凹溝２ｂの断面形状は、例えばＶ字形（直線の段差、図
２Ａ参照）、円弧（図２Ｂ参照）である。The cross-sectional shape of the concave groove 2b provided in the outer peripheral direction of the convex cone at the tip of the ram is, for example, a V-shape (linear step, see FIG. 2A) or an arc (see FIG. 2B).
【０００７】筒１がアルミニウムまたはアルミニウム合
金で構成され、筒の少なくとも内壁の一部に硬質な化成
皮膜または陽極酸化皮膜が形成されていることが好まし
い。また硬質な化成皮膜はクロム酸やクロム酸塩、リン
酸やリン酸塩など化学処理、陽極酸化皮膜として硫酸、
シュウ酸、クロム酸などの電解液による処理で形成され
ている。Preferably, the cylinder 1 is made of aluminum or an aluminum alloy, and a hard chemical conversion film or an anodic oxide film is formed on at least a part of the inner wall of the cylinder. The hard chemical conversion film is chemically treated with chromate, chromate, phosphoric acid, phosphate, etc.
It is formed by treatment with an electrolytic solution such as oxalic acid or chromic acid.
【０００８】この緊急時用流体遮断弁は、常時において
は液体等が筒１の上方の孔４から筒内を通って左方の孔
５に流れる。緊急時、すなわち液体等の流れを瞬時に停
止する要請があったとき、信号電流がパワーカートリッ
ジ３に流れ、内装している火薬を点火する。火薬の点火
で発生した気体の圧力によってラム２が筒１内を摺動し
て進み、先端の凸錐２ａが筒１の凹錐１ａに当接して流
路（孔４→孔５）を遮断する。In the emergency fluid shutoff valve, liquid or the like always flows from the upper hole 4 of the cylinder 1 to the left hole 5 through the inside of the cylinder. In an emergency, that is, when there is a request to instantaneously stop the flow of liquid or the like, a signal current flows to the power cartridge 3 to ignite the explosive contained therein. The ram 2 slides in the cylinder 1 due to the pressure of the gas generated by the ignition of the explosive, and the convex cone 2a at the tip comes into contact with the concave cone 1a of the cylinder 1 to block the flow path (hole 4 → hole 5). I do.
【０００９】筒１内をラム２が摺動する際、表面の硬質
被膜がラム２の凸錐２ａによってかじられ削片が発生し
ても、高速に進むラム２の凸錐２ａの表面を削片は液体
等の媒体の存在下で流れて凹溝２ｂに落ち込み、当接し
ている凸錐２ａの面と凹錐１ａの面との間に残らない。
そのため、この緊急時用流体遮断弁は、動作後に気体や
液体の漏洩がなく、遮断が完全になる。When the ram 2 slides in the cylinder 1, even if the hard coating on the surface is bitten by the convex cone 2a of the ram 2 and chips are generated, the surface of the convex cone 2a of the ram 2 which proceeds at high speed is cut. The piece flows in the presence of a medium such as a liquid and falls into the concave groove 2b, and does not remain between the surface of the convex cone 2a and the surface of the concave cone 1a in contact.
Therefore, the emergency fluid shutoff valve does not leak any gas or liquid after operation, and the shutoff is complete.
【００１０】[0010]
【発明の実施の形態】以下、本発明の好ましい実施の形
態を図面により詳細に説明する。図1は本発明を適用す
る緊急時用流体遮断弁の一実施例の断面図である。同図
に示すように、流体遮断弁は、本体円筒１にラム２が挿
入されパワーカートリッジ３を有している。本体円筒１
は、上方に入口孔４、左方に出口孔５があけられ、開弁
時における流体の流路は矢印Ｘである。尚、入口孔４は
流体源に繋がる配管（不図示）、出口孔５は流体の配送
先に繋がる配管（不図示）が接続される。流体の出口孔
５の周囲が凹円錐１ａとなっている。そして本体円筒１
は、アルミニウム合金でつくられ、筒内外とも全体が硫
酸浴中の陽極酸化皮膜によりアルマイトメッキされてい
る。パワーカートリッジ３は、駆動電源に繋がる電気点
火具が埋め込まれた火薬が充填され、Ｏリング６を挟ん
で本体円筒１にねじ込まれている。DESCRIPTION OF THE PREFERRED EMBODIMENTS Preferred embodiments of the present invention will be described below in detail with reference to the drawings. FIG. 1 is a sectional view of an embodiment of an emergency fluid shutoff valve to which the present invention is applied. As shown in the figure, the fluid shut-off valve has a power cartridge 3 in which a ram 2 is inserted into a main body cylinder 1. Main body cylinder 1
Has an inlet hole 4 above and an outlet hole 5 to the left, and the flow path of the fluid when the valve is open is indicated by an arrow X. The inlet 4 is connected to a pipe (not shown) connected to a fluid source, and the outlet 5 is connected to a pipe (not shown) connected to a fluid delivery destination. The periphery of the fluid outlet hole 5 is a concave cone 1a. And body cylinder 1
Is made of an aluminum alloy, and the whole inside and outside of the cylinder is anodized by an anodized film in a sulfuric acid bath. The power cartridge 3 is filled with an explosive in which an electric igniter connected to a drive power supply is embedded, and is screwed into the main body cylinder 1 with an O-ring 6 interposed therebetween.
【００１１】ラム２は、ステンレスでつくられ本体円筒
１内のパワーカートリッジ３の噴射側に、Ｏリング７を
介して嵌めこまれる。ラム２は先端部（出口孔５側）か
ら若干後退した位置で、本体円筒１の凹円錐形１ａより
僅かに鋭角な凸円錐形２ａであり、ラム２が進んだ時
（図２参照）には凹円錐形１ａの錐壁面に凸円錐形２ａ
が填るようように仕上げられている。さらにラム２は、
凸円錐形２ａの錐壁面の２個所に円周方向のＶ溝が周回
して設けられている。The ram 2 is made of stainless steel, and is fitted through the O-ring 7 to the ejection side of the power cartridge 3 in the main body cylinder 1. The ram 2 is a convex cone 2a which is slightly retreated from the tip (outlet hole 5 side) and is slightly more acute than the concave cone 1a of the main body cylinder 1. When the ram 2 advances (see FIG. 2). Is a convex cone 2a on the conical wall of the concave cone 1a
It is finished to fit. In addition, Ram 2
V-grooves in the circumferential direction are provided at two locations on the conical wall surface of the convex conical shape 2a.
【００１２】この緊急時用流体遮断弁は、開弁時（図１
の状態）には、流体源からの流体が入口孔４→流路Ｘ→
出口孔５を通って配送先に流れる。流れを停止するとき
には、パワーカートリッジ３の電気点火具に電流を流
す。すると火薬が爆発し、その推進力によってラム２が
本体円筒１内を進み、図２に示すとおり、先端の凸円錐
２ａが筒１の凹円錐１ａに当接して孔５を塞ぐから、流
体の流れは停止する。このときラム２が円筒１の内壁表
面にあるアルマイトメッキ層を一部削りとることがある
が、その屑片は凹溝２ｂに溜まるので、凸錐２ａの錐壁
面には残らない。The emergency fluid shut-off valve is opened (FIG. 1).
State), the fluid from the fluid source enters the inlet hole 4 → the flow path X →
It flows to the delivery destination through the outlet hole 5. When stopping the flow, a current is supplied to the electric igniter of the power cartridge 3. Then, the explosive explodes, and the propulsive force causes the ram 2 to advance in the main body cylinder 1, and the convex cone 2 a at the tip abuts the concave cone 1 a of the cylinder 1 to close the hole 5 as shown in FIG. The flow stops. At this time, the ram 2 may partially remove the alumite plating layer on the inner wall surface of the cylinder 1, but the debris remains in the concave groove 2b and does not remain on the conical wall surface of the convex cone 2a.
【００１３】尚、ラム２の凸円錐形２ａの円錐角は本体
円筒１の凹円錐形１ａと同等もしくは僅かに鋭角であ
り、具体的には凸円錐形２ａの円錐角が凹円錐形１ａの
円錐角より０〜０.５°小さい場合、凹円錐形１ａに凸
円錐形２ａが適切に密着して填る。The cone angle of the convex cone 2a of the ram 2 is equal to or slightly acute with the concave cone 1a of the main body cylinder 1. Specifically, the cone angle of the convex cone 2a is equal to that of the concave cone 1a. When the cone angle is smaller than the cone angle by 0 to 0.5 °, the convex conical shape 2a fits closely to the concave conical shape 1a.
【００１４】上記緊急時用流体遮断弁の性能を確認する
ため、以下の試作品について性能試験を実施した。In order to confirm the performance of the emergency fluid shutoff valve, the following prototypes were subjected to performance tests.
【００１５】試作品１の緊急時用流体遮断弁 本体円筒１は、JIS 規格 A2024のアルミ合金で削りだ
し、凹円錐１ａの錐角を５.５°にし陽極酸化皮膜処理
（MIL−A−8625：アルミナ）をおこなった。ラム２はJI
S規格SUS630のステンレスで円錐部分２ａの錐角を５°
にし、円錐壁面に高さ0.16mmの段差（Ｖ溝）を2ケ所設
けた。パワーカートリッジ３には火薬（ジルコニウム／
過塩素酸カリウム）を１５０mg充填した。An emergency fluid shut-off valve of the prototype 1 The main body cylinder 1 is cut out of an aluminum alloy of JIS standard A2024, the cone angle of the concave cone 1a is set to 5.5 °, and anodized film treatment (MIL-A-8625) is performed. : Alumina). Ram 2 is JI
S standard SUS630 stainless steel, cone angle of cone part 2a is 5 °
In addition, two steps (V-grooves) having a height of 0.16 mm were provided on the conical wall surface. The power cartridge 3 contains gunpowder (zirconium /
150 mg of potassium perchlorate).
【００１６】試作品２の緊急時用流体遮断弁 本体円筒１は、試作品１と同一材質であるが、凹円錐１
ａの錐角を１０.５°にした。ラム２はステンレスで円
錐部分２ａの錐角を１０°にし、円錐壁面に高さ0.35mm
の段差（Ｖ溝）を１ケ所設けた。パワーカートリッジ３
には試作品１と同一の火薬を２００mg充填した。The emergency fluid shutoff valve main body cylinder 1 of the prototype 2 is made of the same material as the prototype 1, but has a concave cone 1
The cone angle of a was set to 10.5 °. The ram 2 is made of stainless steel and the conical portion 2a has a cone angle of 10 ° and a height of 0.35 mm on the conical wall surface.
Is provided in one place. Power cartridge 3
Was filled with 200 mg of the same explosive as the prototype 1.
【００１７】比較試作品の緊急時用流体遮断弁 本体円筒１は、試作品２と同一である。ラム２はステン
レスで円錐部分２ａの錐角を１０°にし、円錐壁面に段
差等、溝に相当するものを設けなかった。パワーカート
リッジ３は試作品２と同一のものである。The emergency shut-off valve main body cylinder 1 of the comparative prototype is the same as the prototype 2. The ram 2 was made of stainless steel, and the conical portion 2a had a cone angle of 10 °, and no concavity was provided on the conical wall surface, such as a step. The power cartridge 3 is the same as the prototype 2.
【００１８】これらの試作品１、試作品２、および比較
試作品の各緊急時用流体遮断弁の流体入口孔４にN2ガス
ボンベを接続し、１０Ｍｐａで加圧しながら、各パワー
カートリッジ３を動作させ閉弁した。以後も１０Ｍｐａ
で加圧しながら、各流体出口孔５におけるN2ガスの流出
量を計測した。試作品１および試作品２の緊急時用流体
遮断弁ではN2ガスの流出は全く計測されなかった。一
方、比較試作品の緊急時用流体遮断弁では1.5cc／hrのN
2ガスの流出が認められた。An N 2 gas cylinder is connected to the fluid inlet hole 4 of each of the emergency fluid shut-off valves of the prototype 1, the prototype 2, and the comparative prototype, and each power cartridge 3 is operated while pressurizing at 10 MPa. The valve was closed. After that, 10Mpa
, The outflow of N 2 gas at each fluid outlet 5 was measured. The outflow of N 2 gas was not measured at all in the emergency fluid shutoff valves of prototype 1 and prototype 2. On the other hand, in the comparative prototype, the emergency fluid shutoff valve is 1.5cc / hr N
Outflow of two gases was observed.
【００１９】[0019]
【発明の効果】以上、詳細に説明したように本発明を適
用する流体遮断弁は、動作ミスがなく、動作後に気体や
液体を漏洩することなく完全に遮断できるものであり、
緊急時用の弁として極めて優れたものである。As described above in detail, the fluid shut-off valve to which the present invention is applied has no operation error and can completely shut off gas or liquid after operation without leakage.
This is an excellent emergency valve.
【図１】本発明を適用する緊急時用流体遮断弁の実施例
を示す断面図である。FIG. 1 is a sectional view showing an embodiment of an emergency fluid shutoff valve to which the present invention is applied.
【図２】上記実施例の緊急時用流体遮断弁の動作後を示
す要部断面図である。FIG. 2 is a cross-sectional view of a main part showing the emergency fluid shut-off valve of the embodiment after operation.
【図３】従来の緊急時用流体遮断弁の例を示す断面図で
ある。FIG. 3 is a sectional view showing an example of a conventional emergency fluid shutoff valve.
１は本体円筒、１ａは凹円錐形、２はラム、２ａは凸円
錐形、２ｂは凹溝、３はパワーカートリッジ、４は入口
孔、５は出口孔、６・７はＯリング、Ｘは流路である。1 is a body cylinder, 1a is a concave cone, 2 is a ram, 2a is a convex cone, 2b is a concave groove, 3 is a power cartridge, 4 is an inlet hole, 5 is an outlet hole, 6.7 is an O-ring, X is Channel.
Claims (2)
に凸錐形を持つラムが火薬類を内装したパワーカートリ
ッジの出力部に配置され、該筒の内壁の一部が該凸錐形
と填り合う凹錐形であり、パワーカートリッジの出力に
より推進した該ラムが該筒に密に嵌入して流体の流れを
遮断する弁であって、該ラムの先端凸錐に外周囲方向の
凹溝が形成されていることを特徴とする緊急時用流体遮
断弁。A ram having a convex conical shape on the tip side is disposed in an output portion of a power cartridge containing explosives in a cylinder constituting a fluid flow path, and a part of the inner wall of the cylinder is formed in a convex shape. The valve is a concave cone that fits the cone, and the ram propelled by the output of the power cartridge is tightly fitted into the cylinder to block the flow of fluid. An emergency fluid shut-off valve, characterized in that a directional groove is formed.
ム合金で構成され、該筒の少なくとも内壁の一部に硬質
な化成皮膜または陽極酸化皮膜が施されていることを特
徴とする請求項１に記載の緊急時用流体遮断弁。2. The emergency according to claim 1, wherein the cylinder is made of aluminum or an aluminum alloy, and at least a part of an inner wall of the cylinder is provided with a hard chemical conversion coating or an anodic oxide coating. Fluid shutoff valve for time.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP35242798A JP4303338B2 (en) | 1998-12-11 | 1998-12-11 | Emergency fluid shut-off valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP35242798A JP4303338B2 (en) | 1998-12-11 | 1998-12-11 | Emergency fluid shut-off valve |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JP2000179726A true JP2000179726A (en) | 2000-06-27 |
| JP4303338B2 JP4303338B2 (en) | 2009-07-29 |
Family
ID=18424012
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP35242798A Expired - Lifetime JP4303338B2 (en) | 1998-12-11 | 1998-12-11 | Emergency fluid shut-off valve |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP4303338B2 (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006038049A (en) * | 2004-07-26 | 2006-02-09 | Nof Corp | Emergency shut-off method and device for gas outlet |
| JP2007051740A (en) * | 2005-08-19 | 2007-03-01 | Daicel Chem Ind Ltd | Pyro-type valve |
| KR101387786B1 (en) | 2012-10-09 | 2014-04-21 | (주)캠시스 | Control valve for slurry of high pressure |
| KR101388096B1 (en) | 2012-07-03 | 2014-04-23 | 대우조선해양 주식회사 | Valve quick operation device using gas generator |
| KR20170019915A (en) * | 2015-08-13 | 2017-02-22 | 국방과학연구소 | Metal seal and pyrovalve inserted metal seal |
| KR101937788B1 (en) | 2017-11-24 | 2019-01-11 | 한국항공우주연구원 | Pyro valve |
-
1998
- 1998-12-11 JP JP35242798A patent/JP4303338B2/en not_active Expired - Lifetime
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006038049A (en) * | 2004-07-26 | 2006-02-09 | Nof Corp | Emergency shut-off method and device for gas outlet |
| JP2007051740A (en) * | 2005-08-19 | 2007-03-01 | Daicel Chem Ind Ltd | Pyro-type valve |
| JP4721819B2 (en) * | 2005-08-19 | 2011-07-13 | ダイセル化学工業株式会社 | Pyro-type valve |
| KR101388096B1 (en) | 2012-07-03 | 2014-04-23 | 대우조선해양 주식회사 | Valve quick operation device using gas generator |
| KR101387786B1 (en) | 2012-10-09 | 2014-04-21 | (주)캠시스 | Control valve for slurry of high pressure |
| KR20170019915A (en) * | 2015-08-13 | 2017-02-22 | 국방과학연구소 | Metal seal and pyrovalve inserted metal seal |
| KR101721472B1 (en) * | 2015-08-13 | 2017-03-30 | 국방과학연구소 | Metal seal and pyrovalve inserted metal seal |
| KR101937788B1 (en) | 2017-11-24 | 2019-01-11 | 한국항공우주연구원 | Pyro valve |
Also Published As
| Publication number | Publication date |
|---|---|
| JP4303338B2 (en) | 2009-07-29 |
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