JPS5924306B2 - fluid circuit breaker - Google Patents
fluid circuit breakerInfo
- Publication number
- JPS5924306B2 JPS5924306B2 JP9665179A JP9665179A JPS5924306B2 JP S5924306 B2 JPS5924306 B2 JP S5924306B2 JP 9665179 A JP9665179 A JP 9665179A JP 9665179 A JP9665179 A JP 9665179A JP S5924306 B2 JPS5924306 B2 JP S5924306B2
- Authority
- JP
- Japan
- Prior art keywords
- permanent magnet
- valve
- valve seat
- magnetic member
- magnet member
- 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
Links
Landscapes
- Safety Valves (AREA)
- Magnetically Actuated Valves (AREA)
Description
【発明の詳細な説明】
この発明は、燃料用ガス等の流体を遮断する装置に関し
、特に常時は開いていて流体の流通を妨げぬが、何らか
の異常が生じた場合には直ちに閉じて流体の流通を確実
に阻止するようにした流体遮断器に関する。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a device for shutting off fluids such as fuel gas, and in particular, it is normally open and does not obstruct the flow of fluid, but if any abnormality occurs, it is immediately closed to shut off fluid flow. The present invention relates to a fluid breaker that reliably prevents flow.
例えば、ガス漏れや地震等の不慮の事故が発生したよう
な場合に、それが大きな二次災害を誘起せぬよう、先ず
ガスを遮断することが絶対必要である。For example, in the event of an unexpected accident such as a gas leak or an earthquake, it is absolutely necessary to first shut off the gas to prevent it from causing a major secondary disaster.
ところで、このような目的で使用される流体遮断器は、
通常の弁装置とは異なる厳しい条件が要求される。By the way, the fluid circuit breaker used for this purpose is
Strict conditions are required that are different from those of ordinary valve devices.
先ず、この種の流体遮断器は、待機時に電力を消費しな
いことはもちろん、小電力で駆動できるとともに、一旦
動作して流体を遮断したならば、今度はその作動状態が
その後の電力供給の有無に抱わらず保持されるようにな
っていなければならない。First of all, this type of fluid circuit breaker not only consumes no power when on standby, but also can be driven with a small amount of power. It must be able to be held without being held by the person.
これは、後に停電等の事故が起きても、これによって作
動前の状態に戻ってしまわないようにするためである。This is to prevent the system from returning to its pre-operation state even if an accident such as a power outage occurs later.
このことは、例えば、ガス漏れによって一旦ガスを遮断
した後停電等の偶発によって遮断器が元の状態に復帰し
て再びガス漏れ状態に戻るといった不都合をなくす上で
きわめて重要なことである。This is extremely important in order to eliminate the inconvenience of, for example, the circuit breaker returning to its original state due to an accident such as a power outage after once cutting off the gas due to a gas leak, and returning to the gas leak state again.
また、この種の流体遮断器は、その用途からみて、日常
的に動作させられるものではなく、長期間に亘って不作
動の待機状態に放・置されるものであるから、万一故障
が生じていてもその発見は非常に難しい。Furthermore, considering its intended use, this type of fluid circuit breaker is not operated on a daily basis, but is left in an inoperable standby state for a long period of time, so there is no risk of failure in the unlikely event of a failure. Even if it does occur, it is extremely difficult to detect.
従って、この種の流体遮断器では、その構成を可能な限
り簡単化し、また長期間不作動状態で放置されていても
、動作するときは確実にしかも迅速に動作することがで
き、また万一にも故障が生じぬように十分に高い信頼性
を備えていなければならない。Therefore, this type of fluid circuit breaker has a structure that is as simple as possible, and even if it is left inactive for a long period of time, it can operate reliably and quickly, and in the event of an emergency, it can operate reliably and quickly. It must also have sufficiently high reliability to prevent failures.
従来、上記のような機能を有する流体遮断器を提供せん
として種々の提案がなされているが、ある種のものはガ
ス漏れ検知器等と連動し、この検知信号によってソレノ
イドに電流を供給し、ソレノイドの電磁力によって弁体
を閉じようとするもので、例えば実開昭５０−２１１２
４に係るものが公知となっている。In the past, various proposals have been made to provide fluid circuit breakers with the above-mentioned functions, but some of them work in conjunction with a gas leak detector, etc., and supply current to a solenoid based on the detection signal, It attempts to close the valve body using the electromagnetic force of a solenoid.
4 is publicly known.
しかし、この公知の装置では弁体をソレノイドで直接移
動させんとするものであること、弁体が球体であること
、及び弁体が溝内に一部嵌合していること等のためにソ
レノイドを大型化して大電流を通じる必要があり、才た
そうでないと信頼性が乏しくなると言った欠陥があった
。However, in this known device, the valve body is directly moved by a solenoid, the valve body is spherical, and the valve body is partially fitted in the groove. The defect was that the solenoid had to be made larger and pass a large amount of current, and if it was not made to be efficient, it would be unreliable.
この発明は以上のような要求に応じるためにななされた
もので、その目的とするところは、ソレノイドが直接的
に弁体を移動させるのではなく、ソレノイドはこの中心
部に配した管状の可動磁性部材を内方に引き込むと言っ
た動作によって間接的に弁体を作動する構成を採用する
ことにより、信頼性を高め、長期間不作動状態に放置さ
れていても故障を生じることなく確実に動作でき、しか
も低コストが実現できる流体遮断器を提供することにあ
る。This invention was made in response to the above requirements, and its purpose is that the solenoid does not directly move the valve body, but rather that the solenoid is a movable tube placed in the center of the solenoid. By adopting a configuration in which the valve body is operated indirectly by the action of pulling the magnetic member inward, reliability is increased, and even if the valve is left in a non-operating state for a long period of time, it will not break down and will not occur. It is an object of the present invention to provide a fluid circuit breaker that is operable and can be realized at low cost.
この発明による流体遮断器は、先ず、弁体を抱束して該
弁体を従動させるようにした可動永久磁石部材を有する
。The fluid circuit breaker according to the present invention first includes a movable permanent magnet member that encloses a valve body and causes the valve body to follow the movement.
次に、この可動永久磁石部材を上記弁体が弁座に着座す
る方向へ常時付勢する弾圧手段と、上記永久磁石部材に
近接して磁力により該磁石部材を上記弾圧手段に打ち勝
って抱束する管状の可動磁性部材と、この可動磁性部材
を上記磁石部材から離反する方向へ磁気１駆動するソレ
ノイドからなる励磁装置とを備えている。Next, a pressure means for constantly biasing the movable permanent magnet member in a direction in which the valve body is seated on the valve seat; The movable magnetic member is provided with a tubular movable magnetic member, and an excitation device including a solenoid that magnetically drives the movable magnetic member in a direction away from the magnet member.
そして、上記磁石部材は、上記磁性部材との間に作用す
る磁力が上記弾圧手段による弾性力に打ち勝つ第１の安
定位置と、上記弾圧手段による弾性力が上記磁性部材と
の間に作用する磁力に打ち勝つ第２の安定位置とを有す
るようになっている。The magnetic member has a first stable position where the magnetic force acting between the magnetic member and the elastic force overcomes the elastic force of the elastic force, and a magnetic force where the elastic force of the elastic force acts between the magnetic member and the magnetic member. and a second stable position that overcomes the .
これにより、一方の安定位置にて上記弁体が上記弁座か
ら離反して流体流路が開き、また他方の安定位置にて上
記弁体が上記弁座に着座して流体流路を閉じるようにな
っている。As a result, in one stable position, the valve element separates from the valve seat, opening the fluid flow path, and in the other stable position, the valve element seats on the valve seat, closing the fluid flow path. It has become.
以下、この発明の実施例を添附図面を参照しながら詳述
する。Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings.
第１．図ａ、ｂ、ｃは、この発明に係る流体遮断器の一
実施例を示したもので、先ず、同図ａに示した状態にて
説明すると、このものは、非磁性材からなる管状ケーシ
ング１内に弁室２および弁座３が形成されている。1st. Figures a, b, and c show an embodiment of the fluid circuit breaker according to the present invention. First, the state shown in figure a will be explained. This device has a tubular casing made of non-magnetic material. A valve chamber 2 and a valve seat 3 are formed within the valve 1 .
また、管状ケーシング１の両開口端部ｌａ、１ｂは入出
力ポートとなっており、ガス管あるいは器具等への接続
のためにそれぞれネジが切られている。Further, both open ends la and 1b of the tubular casing 1 serve as input/output ports, each of which is threaded for connection to a gas pipe, an instrument, or the like.
弁室２内には、軟磁性材料からなる球状弁体４が遊嵌状
態で収納されている。A spherical valve body 4 made of a soft magnetic material is accommodated in the valve chamber 2 in a loosely fitted manner.
この弁体４は、弁室２内の弁座３が位置する方向（図で
は左方向）とその反対方向とを自由に往復移動できるよ
うになっている。This valve body 4 can freely reciprocate in the direction in which the valve seat 3 in the valve chamber 2 is located (to the left in the figure) and in the opposite direction.
また、弁室２の内壁面との間にガス流路を形成すべく、
弁室２の内径よりも小径に形成されている。In addition, in order to form a gas flow path between the inner wall surface of the valve chamber 2,
It is formed to have a smaller diameter than the inner diameter of the valve chamber 2.
弁座３の中央には出力ポートに通ずる弁孔５が設けであ
るが、この弁孔５は、上記弁体４が上記弁座３に着座す
ることにより閉塞されるようになっている。A valve hole 5 communicating with the output port is provided in the center of the valve seat 3, and this valve hole 5 is closed when the valve body 4 is seated on the valve seat 3.
上記弁室２の後方（図では右方向）すなわち上記弁座３
と反対方向には、管状の軟磁性部材６が、上記ケーシン
グ１内を前後方向に対して移動自在に挿入されている。Behind the valve chamber 2 (rightward in the figure), that is, the valve seat 3
In the opposite direction, a tubular soft magnetic member 6 is inserted into the casing 1 so as to be movable in the front-back direction.
この管状軟磁性部材６は、その前方端（図では左側端）
６ａが、上記弁室２の手前に形成されたストッパーとし
ての段落７ａに当接して係止され、またその後方端７ｂ
が上記ケーシング１．の後方側内壁面に形成したストッ
パー突起７ｂに当接して係止されるようになっている。This tubular soft magnetic member 6 has a front end (the left end in the figure).
6a abuts against and is locked to a stopper stage 7a formed in front of the valve chamber 2, and its rear end 7b
is the above casing 1. It comes into contact with a stopper protrusion 7b formed on the inner wall surface of the rear side.
従って、上記管状軟磁性部材６は、上記段落７ａと上記
ストッパー突起７ｂで係止されるまでの範囲を自由に前
後移動できるようになっている。Therefore, the tubular soft magnetic member 6 can freely move back and forth within a range until it is stopped by the paragraph 7a and the stopper protrusion 7b.
しかし、第１図ａに示す状態では、上記軟磁性部材６は
、上記段落７ａにて係止される前方寄り位置にて安定さ
せられている。However, in the state shown in FIG. 1a, the soft magnetic member 6 is stabilized at the forward position where it is locked by the paragraph 7a.
これは、後述する環状永久磁石部材８の磁気吸引力によ
るためである。This is due to the magnetic attraction force of the annular permanent magnet member 8, which will be described later.
環状永久磁石部材８は、上記ケーシング１の外周囲に、
前後方向に移動可能に遊嵌蓋されたもので、上記弁室２
の前後端を若干越える範囲がその可動範囲である。An annular permanent magnet member 8 is arranged around the outer periphery of the casing 1.
It has a loosely fitted lid that can be moved in the front and back direction, and the valve chamber 2 is
Its movable range is slightly beyond the front and rear ends of.
すなわち、上記永久磁石部材８は、その磁力の中心が上
記弁座３よりもわずかに前方に位置するところから、上
記管状軟磁性部材６の前方端に接近する位置までの範囲
を移動することができるようになっている。That is, the permanent magnet member 8 can move within a range from a position where the center of its magnetic force is located slightly forward of the valve seat 3 to a position approaching the front end of the tubular soft magnetic member 6. It is now possible to do so.
また、上記環状磁性部材８は、その後方側に介挿したコ
イルバネ９によって常時前方へ弾性付勢されるようにな
っている。Further, the annular magnetic member 8 is always elastically biased forward by a coil spring 9 inserted at the rear side thereof.
しかし、第１．図ａに示した状態では、上記環状磁性部
材８が上記コイルバネ９の弾性力に抗して後方側に寄っ
て位置させられている一方、上記管状軟磁性部材６がそ
の前方側への移動限界にて位置させられているため、上
記環状永久磁石部材８と上記管状軟磁性部材６とは互い
に最も接近させられた位置にあり、従って、両者間に最
も強く磁気吸引力が作用し、この結果、上記環状永久磁
石部材８は、上記コイルバネ９の弾性力に打ち勝って後
方側に寄った位置で安定せしめられている。However, first. In the state shown in FIG. Therefore, the annular permanent magnet member 8 and the tubular soft magnetic member 6 are located closest to each other, and therefore the strongest magnetic attractive force acts between them, resulting in The annular permanent magnet member 8 overcomes the elastic force of the coil spring 9 and is stabilized at a rearward position.
環状永久磁石部材８が、その第１の安定位置にあるとき
、球状軟磁性材料からなる弁体４は、上記ケーシング１
を介して上記永久磁石部材８に磁力で抱束されているた
め、上記環状磁石部材８に従動して、上記弁座３から最
も離されたところに強制的に位置させられている。When the annular permanent magnet member 8 is in its first stable position, the valve body 4 made of a spherical soft magnetic material is attached to the casing 1.
Since it is magnetically held by the permanent magnet member 8 via the annular magnet member 8, it is forced to be located at the farthest distance from the valve seat 3 by the annular magnet member 8.
従って、第１図ａに示した状態では、入力ポートから流
入するガスは、図中の矢印で示すように、管状軟磁性部
材６の中を通り、さらに弁体４と弁室２の内壁間を通っ
て出力ポートへ流出することができるようになっている
。Therefore, in the state shown in FIG. 1a, the gas flowing in from the input port passes through the tubular soft magnetic member 6, as shown by the arrow in the figure, and further between the valve body 4 and the inner wall of the valve chamber 2. It is now possible to flow out to the output port through the.
すなわち、遮断器は開いた状態を保持している。That is, the circuit breaker remains open.
ところで、上記管状軟磁性部材６の後方側部分は、上記
ケーシング１の外周囲に嵌着・固定させた励磁装置とし
てのソレノイド１０に嵌入している。Incidentally, the rear portion of the tubular soft magnetic member 6 is fitted into a solenoid 10 serving as an excitation device that is fitted and fixed around the outer periphery of the casing 1.
このソレノイド１．０に駆動電流を流すと、これによっ
て励磁される磁力が上記ケーシング１を介して上記管状
軟磁性部材６に作用し、軟磁性部材６を後方へ磁力付勢
するようになっている。When a driving current is applied to this solenoid 1.0, the magnetic force excited thereby acts on the tubular soft magnetic member 6 through the casing 1, magnetically biasing the soft magnetic member 6 backward. There is.
従って、ここで、上記ソレノイド１．０に駆動電流（例
えばＡＣｌｏｏＶ）を供給すると、上記軟磁性部材６は
、後方へ磁力駆動されて、上記永久磁石部材８から強制
的に離反させられる。Therefore, when a drive current (for example, AClooV) is supplied to the solenoid 1.0, the soft magnetic member 6 is magnetically driven backward and forcibly separated from the permanent magnet member 8.
すると、第１図すに示すように、上記環状永久磁石部材
８は、上記管状軟磁性部材６との磁気的結合力が失なわ
れた、あるいは弱くなったことにより、上記コイルバネ
９の弾性力により前方へ押し出され、ケーシング１の前
方側の係止部ＩＣに当接して係止される。Then, as shown in FIG. 1, the annular permanent magnet member 8 loses or weakens the magnetic coupling force with the tubular soft magnetic member 6, so that the elastic force of the coil spring 9 is reduced. It is pushed forward by the casing 1, and comes into contact with the locking portion IC on the front side of the casing 1 and is locked.
これとともに、上記管状磁石部材８の磁力によって抱束
されている上記弁体４も前方へ移動させられて、上記弁
座３に着座させられる。At the same time, the valve body 4 held together by the magnetic force of the tubular magnet member 8 is also moved forward and seated on the valve seat 3.
これにより、入力ポートから流入しようとするガスは、
上記弁体４と弁座３によって出力ポートへ抜ける通路を
失なう。This allows the gas trying to flow in from the input port to
The passage to the output port is lost due to the valve body 4 and valve seat 3.
すなわち、遮断器は閉状態となってガスは直ちに遮断さ
れる。That is, the circuit breaker is closed and the gas is immediately shut off.
さて、一旦このような閉状態になったならば、この後に
上記ソレノイド９の駆動電流が断たれ、さらに上記軟磁
性部材６が前方へ移動して来たとしても、上記環状永久
磁石部材８は前方へ押し出されて上記軟磁性部材６から
十分に離れてしまっているので、上記コイルバネ９の弾
圧力が上記軟磁性部材６と上記環状永久磁石部材８との
間に作用する磁気力に打ち勝ち、従って、上記環状永久
磁石部材８は、上記コイルバネ９によって前方へ押し出
された位置にて安定させられるようになる。Now, once such a closed state is established, even if the driving current of the solenoid 9 is cut off and the soft magnetic member 6 further moves forward, the annular permanent magnet member 8 Since it is pushed forward and sufficiently separated from the soft magnetic member 6, the elastic force of the coil spring 9 overcomes the magnetic force acting between the soft magnetic member 6 and the annular permanent magnet member 8. Therefore, the annular permanent magnet member 8 is stabilized at the position pushed forward by the coil spring 9.
この第２の安定位置による遮断器の閉状態は、次に述べ
る復帰操作が行なわれるまで保持される。The closed state of the circuit breaker in this second stable position is maintained until the next return operation is performed.
第１図Ｃは、その復帰操作を示したもので、例えば手動
により上記環状永久磁石部材８を後方（図では右方）へ
上記コイルバネ９の弾圧力に抗して押し戻してやれば、
上記管状軟磁性部材６と上記環状永久磁石部材８との間
には再び強い磁気吸引力が作用し合って、両部材６，８
間に作用する磁力が上記コイルバネ９の弾圧力に打ち勝
つ、第１図ａに示した如き第１の安定位置に復帰する。FIG. 1C shows the return operation. For example, if the annular permanent magnet member 8 is manually pushed back (to the right in the figure) against the elastic force of the coil spring 9,
A strong magnetic attraction force again acts between the tubular soft magnetic member 6 and the annular permanent magnet member 8, and both members 6, 8
The magnetic force acting thereon overcomes the elastic force of the coil spring 9 and returns to the first stable position as shown in FIG. 1a.
なお、図示を省略するが、上記管状軟磁性部材６を前方
へ弱く付勢するような弾圧手段を別に設けておけば、上
記ソレノイド１０によって一旦後方へ強制移動させられ
た軟磁性部材６の前方への復帰がすみやかに行なわれ、
これにより上述の復帰動作も一層円滑に行なれるように
なる。Although not shown in the drawings, if a pressure means for weakly biasing the tubular soft magnetic member 6 forward is provided separately, the front of the soft magnetic member 6 that has been forcibly moved backward by the solenoid 10 can be provided separately. A quick return to the
This allows the above-mentioned return operation to be performed even more smoothly.
また、第１図ａ、ｂ、ｃに示した実施例の場合上記弁室
２内を流れるガスの圧力が、上記弁体４を前方の弁座３
の方向へ押圧するようになっているため、ガス流量が異
常に増大したような場合には、上記弁体４が上記環状磁
石部材８を引っ張って前方の第２の安定位置へ移動させ
られるようになる。In the embodiments shown in FIGS. 1a, b, and c, the pressure of the gas flowing in the valve chamber 2 causes the valve body 4 to move toward the front valve seat 3.
Therefore, if the gas flow rate increases abnormally, the valve body 4 can pull the annular magnet member 8 and move it to the second stable position in the front. become.
従って、実施例のものでは、いわゆるガスヒユーズとし
て機能させられるようにすることも可能になっている。Therefore, in the embodiment, it is also possible to make it function as a so-called gas fuse.
さて、ここで、注目すべきことは、上記弁体４の駆動が
、例えば爪装置のようにきわどい調節などを必要とする
複雑な機構によってではなく、永久磁石の磁力とバネの
弾性力および励磁装置の組合わせによるきわめて簡単な
機構によって行なわれるようになっているため、長期間
不作動の待機状態に放置されても故障の恐れがなく、確
実に動作することができ、従って、きわめて信頼性の高
いものとなっていることである。Now, what should be noted here is that the valve body 4 is not driven by a complicated mechanism that requires severe adjustment, such as a pawl device, but by the magnetic force of a permanent magnet and the elastic force of a spring, and by excitation. This is done by an extremely simple mechanism consisting of a combination of devices, so there is no risk of failure even if the device is left in an inactive standby state for a long period of time, and it can operate reliably. Therefore, it is extremely reliable. The reason for this is that it has a high level of quality.
また、励磁装置は、持続的に動作させる必要はなく、瞬
時的に動作させればよく、開閉例れの状態の場合も、定
常時には駆動電流を要しないという利点があり、従って
、長期間の待期状態を続けても、消費電力が問題になる
といったことは全くない。In addition, the excitation device does not need to operate continuously, but only needs to operate instantaneously, and has the advantage that it does not require a driving current in steady state, even in the case of opening and closing. Even if the standby state continues, power consumption does not become a problem at all.
さらに、上記弁体４を駆動して流体を遮断するには、ソ
レノイド９の中心に配した管状の可動磁性部材６をソレ
ノイドの内方へ引き寄せるだけで良いから上記ソレノイ
ド９に瞬時的に供給する駆動電流も比較的少なくてよく
、またソレノイド９も、小型で簡単なものでよいという
利点がある。Furthermore, in order to drive the valve body 4 and shut off the fluid, it is sufficient to simply pull the tubular movable magnetic member 6 placed at the center of the solenoid 9 inward, so that the fluid is instantly supplied to the solenoid 9. The advantage is that the driving current may be relatively small, and the solenoid 9 may be small and simple.
さらにまた、前述の実施例の如き遮断器では、遮断する
ガス（あるいは流体）の圧力に応じて上記バネ９の力、
上記永久磁石部材８と上記弁体４との間に作用する磁気
力、および可動部分の機械抵抗を選ぶことにより、一定
以上の外振力によっても上記弁体４が弁座３に着座する
安定位置に駆動させられるようにすることもできる。Furthermore, in the circuit breaker as in the above-described embodiment, the force of the spring 9 changes depending on the pressure of the gas (or fluid) to be shut off.
By selecting the magnetic force acting between the permanent magnet member 8 and the valve body 4 and the mechanical resistance of the movable part, the valve body 4 can be seated stably on the valve seat 3 even when an external vibration force of a certain level or more is applied. It can also be driven into position.
このことにより、要すれは、遮断器自体に対震遮断器と
しての機能を持たせることも可能である。This makes it possible to provide the circuit breaker itself with a function as an anti-seismic circuit breaker, if necessary.
以上のように、この発明による流体遮断装置は、ガス流
路中に介装される非磁性ケーシング１内に弁室２及び弁
座３を形成し、該弁室内に磁性体からなる弁体４を配設
して該弁座に着座及び分離する方向に移動可能とし、該
ケーシングの外側に永久磁石部材８を摺動自在に配設し
て該弁体４と磁気的に結合して該該永久磁石部材８の摺
動に伴って該弁体４を該弁室２内にて移動可能とし、該
永久磁石部材８を該弁体４が該弁座３に着座する方向に
常時付勢する弾圧手段９を設けてなる流体遮断器におい
て、該ケーシング１内に該弁座３から離れて管状の可動
磁性部材６を配設するとともに該可動磁性部材の弁座方
向への移動を規制するストッパ ７ａを設け、該ストッ
パー７ａを挟んで該弁座３と反対側に該可動磁性部材の
少なくとも一部を取囲むソレノイド１０を設けるととも
に非常時において該ソレノイドに電流を通ずる手段を設
けてなり、該永久磁石部材８を該弾圧手段９に抗して該
弁座３から離れる方向に移動させて該可動磁性部材６を
該ストッパー７ａに当接するように磁気吸引した時に生
ずる該永久磁石部材８と該可動磁性部材６との磁気結合
が該弾圧手段９の弾性力に打勝つように該永久磁石部材
８の磁力及び該弾圧手段９の弾性力を予め設定してなり
、また該ソレノイド１０は励起された時に該永久磁石部
材８と該可動磁性部材６との該磁気結合に打勝って該可
動磁性部材６を該ストッパー７ａから離れる方向へ移動
させるのに充分な電磁力を有するように予め構成されて
なるのであるから、ツレメイドは直接的に球状の弁体に
作用するのでなく、一般的鉄芯同様に管状可動磁性部材
６に作用するだけであり、小形で低電流で駆動するもの
とすることができ、信頼性を高め、長期間不作動状態に
放置されていても故障を生じることなく確実に動作でき
、しかも低コストが実現できるようになっている。As described above, the fluid cutoff device according to the present invention has a valve chamber 2 and a valve seat 3 formed in a non-magnetic casing 1 interposed in a gas flow path, and a valve body 4 made of a magnetic material in the valve chamber. A permanent magnet member 8 is slidably arranged on the outside of the casing to be magnetically coupled to the valve body 4 so as to be movable in the direction of seating on and separating from the valve seat. The valve body 4 is made movable within the valve chamber 2 as the permanent magnet member 8 slides, and the permanent magnet member 8 is constantly biased in the direction in which the valve body 4 is seated on the valve seat 3. In a fluid circuit breaker provided with a pressure means 9, a tubular movable magnetic member 6 is disposed within the casing 1 apart from the valve seat 3, and a stopper for restricting movement of the movable magnetic member toward the valve seat. 7a, and a solenoid 10 surrounding at least a part of the movable magnetic member on the opposite side of the valve seat 3 with the stopper 7a in between, and means for passing current through the solenoid in an emergency. When the permanent magnet member 8 is moved in a direction away from the valve seat 3 against the elastic force means 9 and the movable magnetic member 6 is magnetically attracted so as to come into contact with the stopper 7a, the contact between the permanent magnet member 8 and the The magnetic force of the permanent magnet member 8 and the elastic force of the pressing means 9 are set in advance so that the magnetic coupling with the movable magnetic member 6 overcomes the elastic force of the pressing means 9, and the solenoid 10 is excited. The permanent magnet member 8 is configured in advance to have sufficient electromagnetic force to overcome the magnetic coupling between the permanent magnet member 8 and the movable magnetic member 6 and move the movable magnetic member 6 in the direction away from the stopper 7a. Therefore, TsureMade does not act directly on the spherical valve body, but only acts on the tubular movable magnetic member 6, like a general iron core, and should be small and driven with low current. It has become possible to improve reliability, operate reliably without failure even if left inactive for long periods of time, and achieve low cost.
第１図ａはこの発明に係る流体遮断器の開状態における
一実施例を示す断面図、同図すはその閉状態を示す断面
図、同図Ｃは閉状態から開状態への復帰動作を示す断面
図である。
１・・・・・・非磁性ケーシング、２・・・・・・弁室
、３・・・・・・弁座、４・・・・・・弁体、５・・・
・・・弁孔、６・・・・・・管状軟磁性部材、８・・・
・・・環状永久磁石部材、９・・・・・・コイルバネ、
１．０・・・・・・ソレノイド。FIG. 1a is a sectional view showing an embodiment of the fluid circuit breaker according to the present invention in an open state, the same figure is a sectional view showing the closed state, and FIG. 1C is a sectional view showing the return operation from the closed state to the open state. FIG. 1...Non-magnetic casing, 2...Valve chamber, 3...Valve seat, 4...Valve body, 5...
... Valve hole, 6 ... Tubular soft magnetic member, 8 ...
... Annular permanent magnet member, 9 ... Coil spring,
1.0...Solenoid.
Claims (1)
室２及び弁座３を形成し、該弁室内に磁性体からなる弁
体４を配設して該弁座に着座及び分離する方向に移動可
能とし、該ケーシングの外側に永久磁石部材８を摺動自
在に配設して該弁体４と磁気的に結合して該該永久磁石
部材８の摺動に伴って該弁体４を該弁室２内にて移動可
能とし、該永久磁石部材８を該弁体４が該弁座３に着座
する方向に常時付勢する弾圧手段９を設けてなる流体遮
断器において、該ケーシング１内に該弁座３から離れて
管状の可動磁性部材６を配設するとともに該可動磁性部
材の弁座方向への移動を規制するストッパー７ａを設け
、該ストッパー７ａを挟んで該弁座３と反対側に該可動
磁性部材の少なくとも一部を取囲むソレノイド１０を設
けるとともに非常時において該ソレノイドに電流を通ず
る手段を設けてなり、該永久磁石部材８を該弾圧手段９
に抗して該弁座３から離れる方向に移動させて該可動磁
性部材６を該ストッパー７ａに当接するように磁気吸引
した時に生ずる該永久磁石部材８と該可動磁性部材６と
の磁気結合が該弾圧手段９の弾性力に打勝つように該永
久磁石部材８の磁力及び該弾圧手段９の弾性力を予め設
定してなり、また該ソレノイド１０は励起された時に該
永久磁石部材８と該可動磁性部材６との該磁気結合に打
勝って該可動磁性部材６を該ストッパー７ａから離れる
方向へ移動させるのに充分な電磁力を有するように予め
構成されてなることを特徴とする流体遮断器。1 A valve chamber 2 and a valve seat 3 are formed in a non-magnetic casing 1 interposed in a gas flow path, and a valve body 4 made of a magnetic material is arranged in the valve chamber and is seated on and separated from the valve seat. A permanent magnet member 8 is slidably disposed on the outside of the casing, and is magnetically coupled to the valve body 4, so that the valve body is moved as the permanent magnet member 8 slides. In a fluid circuit breaker, the body 4 is movable within the valve chamber 2 and is provided with a pressure means 9 that constantly urges the permanent magnet member 8 in a direction in which the valve body 4 is seated on the valve seat 3. A tubular movable magnetic member 6 is disposed within the casing 1 apart from the valve seat 3, and a stopper 7a is provided to restrict movement of the movable magnetic member toward the valve seat. A solenoid 10 surrounding at least a part of the movable magnetic member is provided on the opposite side of the seat 3, and a means for passing current through the solenoid in an emergency is provided, and the permanent magnet member 8 is moved by the repelling means 9.
The magnetic coupling between the permanent magnet member 8 and the movable magnetic member 6 that occurs when the movable magnetic member 6 is magnetically attracted to the stopper 7a by moving away from the valve seat 3 against the The magnetic force of the permanent magnet member 8 and the elastic force of the pressing means 9 are set in advance to overcome the elastic force of the pressing means 9, and the solenoid 10, when excited, A fluid blocker characterized in that it is preconfigured to have sufficient electromagnetic force to overcome the magnetic coupling with the movable magnetic member 6 and move the movable magnetic member 6 away from the stopper 7a. vessel.
Priority Applications (5)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9665179A JPS5924306B2 (en) | 1979-07-30 | 1979-07-30 | fluid circuit breaker |
| GB8024613A GB2060827B (en) | 1979-07-30 | 1980-07-28 | Fluid shut-off valve |
| IT23772/80A IT1131780B (en) | 1979-07-30 | 1980-07-29 | FLUID INTERCEPTING DEVICE |
| DE19803028938 DE3028938A1 (en) | 1979-07-30 | 1980-07-30 | FLUID BLOCKING DEVICE |
| FR8016783A FR2462633A1 (en) | 1979-07-30 | 1980-07-30 | STOP VALVE |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9665179A JPS5924306B2 (en) | 1979-07-30 | 1979-07-30 | fluid circuit breaker |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5620883A JPS5620883A (en) | 1981-02-26 |
| JPS5924306B2 true JPS5924306B2 (en) | 1984-06-08 |
Family
ID=14170725
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP9665179A Expired JPS5924306B2 (en) | 1979-07-30 | 1979-07-30 | fluid circuit breaker |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5924306B2 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0199609U (en) * | 1987-12-24 | 1989-07-04 | ||
| JPH0414182Y2 (en) * | 1985-02-08 | 1992-03-31 |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS56112522A (en) * | 1980-02-13 | 1981-09-04 | Kanebo Ltd | Production of blended fiber filament |
| JPS58219325A (en) * | 1982-06-15 | 1983-12-20 | Toto Denki Kk | Fluid interruption structure in automatic stop device of supply fuel for burning |
| JPS6293477U (en) * | 1985-12-04 | 1987-06-15 | ||
| CN101963253B (en) * | 2010-11-05 | 2013-07-10 | 廖新桃 | Push-type multifunctional overflow-preventing fuel gas safety valve |
| DE102015004691A1 (en) * | 2015-04-10 | 2016-10-13 | Bürkle Gmbh | Flow control device |
-
1979
- 1979-07-30 JP JP9665179A patent/JPS5924306B2/en not_active Expired
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0414182Y2 (en) * | 1985-02-08 | 1992-03-31 | ||
| JPH0199609U (en) * | 1987-12-24 | 1989-07-04 |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5620883A (en) | 1981-02-26 |
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