JPH07190235A - Valve control device - Google Patents
Valve control deviceInfo
- Publication number
- JPH07190235A JPH07190235A JP5333695A JP33369593A JPH07190235A JP H07190235 A JPH07190235 A JP H07190235A JP 5333695 A JP5333695 A JP 5333695A JP 33369593 A JP33369593 A JP 33369593A JP H07190235 A JPH07190235 A JP H07190235A
- Authority
- JP
- Japan
- Prior art keywords
- valve
- opening
- closing
- diaphragm valve
- coil
- 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
Links
Landscapes
- Magnetically Actuated Valves (AREA)
- Electromagnets (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は、離隔した地点に配設し
た弁装置を正・負の電気信号によって開閉操作すると共
に操作による弁の作動状態を検知する弁の制御装置に関
する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a valve control device for opening and closing valve devices arranged at remote points by positive and negative electric signals and detecting the operating state of the valve by the operation.
【０００２】[0002]
【従来の技術】従来、オン又はオフの電気操作信号を一
対の電線路により離隔した地点に配設した電磁或は電動
弁装置に伝送して弁の開閉駆動を実施し、その弁の作動
状態を確認するには、別の一対の電線路を用い、弁に連
動する電気接点の開閉作動によって弁の変位を電気信号
に変換し弁の状態表示信号として電気操作信号送出地点
側へ送出するという手段が一般的である。2. Description of the Related Art Conventionally, an ON or OFF electric operation signal is transmitted to an electromagnetic or electric valve device arranged at a point separated by a pair of electric lines to open and close the valve to operate the valve. To confirm this, another pair of electric lines is used, and the valve displacement is converted into an electrical signal by opening and closing the electrical contacts linked to the valve and sent to the electrical operation signal sending point side as a valve status display signal. Means are common.
【０００３】[0003]
【発明が解決しようとする課題】しかし、前述の従来技
術では、電気操作信号と状態表示信号にそれぞれ一対の
電線路を必要として、設備費の高騰を招くという欠点が
あった。また、特にパイロット弁を介して作動するダイ
ヤフラム弁では、流体の流れを直接開閉するダイヤフラ
ムの開閉を、これに連動する電気接点で検知すること
は、連動のための機構が複雑化し、特に流体と電気接点
のシール構造が困難となるという欠点があった。However, the above-mentioned conventional technique has a drawback in that a pair of electric lines are required for the electric operation signal and the status display signal, resulting in a high equipment cost. Further, particularly in a diaphragm valve that operates via a pilot valve, detecting the opening and closing of the diaphragm that directly opens and closes the flow of fluid with an electrical contact that interlocks with this makes the mechanism for interlocking complicated, especially with fluid. There is a drawback that the sealing structure of the electrical contacts becomes difficult.
【０００４】本発明はこのような従来技術の問題を解決
する弁制御装置を提供することを課題とするものであ
る。An object of the present invention is to provide a valve control device that solves the problems of the prior art.
【０００５】[0005]
【課題を解決するための手段】本発明は、上述の問題を
解決するものであり、次の技術手段を採った。すなわ
ち、正又は負極性の直流のパルス通電によって開閉の自
己保持操作を行うパイロット弁と、該パイロット弁の操
作によって作動するダイヤフラム弁と、該ダイヤフラム
弁の開閉を検知し正又は負極性の信号を出力するセンサ
と、該パイロット弁に所要極性の直流電流を供給する電
流の印加手段及び該パイロット弁への通電を検知する検
知手段からなることを特徴とする弁制御装置である。The present invention has been made to solve the above problems and has adopted the following technical means. That is, a pilot valve that performs a self-holding operation of opening and closing by positive or negative polarity DC energization, a diaphragm valve that operates by the operation of the pilot valve, and a positive or negative signal that detects opening and closing of the diaphragm valve. A valve control device comprising an output sensor, a current application unit for supplying a direct current of a required polarity to the pilot valve, and a detection unit for detecting energization of the pilot valve.
【０００６】該センサーを、該ダイヤフラム弁の開閉を
検知した所定時限経過後に、該ダイヤフラム弁の開閉を
検知する以前の状態に自動的に復帰させるようにすれば
更に好適である。It is further preferable that the sensor is automatically returned to a state before the opening / closing of the diaphragm valve is detected after a predetermined time period when the opening / closing of the diaphragm valve is detected.
【０００７】[0007]
【作用】本発明に使用されるダイヤフラム弁について説
明する。図２は、公知のパイロット弁１を用いた公知の
ダイヤフラム弁の断面の説明図である。図において、パ
イロット弁１のソレノイドに無通電の状態では、パイロ
ット弁１の弁座２はパイロット弁ゴム３によって閉止さ
れ、流体入口８の高圧部と流体圧変動部１０は微小径連
通管路４を経由して連通され、流体圧変動部１０は高圧
流体によって満たされており、ダイヤフラム５は流体入
口圧（高圧部）と流体出口圧（低圧部）との差圧が作用
して、ダイヤフラム弁座６に押圧されダイヤフラム弁は
閉止の状態を維持している。The diaphragm valve used in the present invention will be described. FIG. 2 is an explanatory view of a cross section of a known diaphragm valve using the known pilot valve 1. In the figure, when the solenoid of the pilot valve 1 is in the non-energized state, the valve seat 2 of the pilot valve 1 is closed by the pilot valve rubber 3, and the high pressure portion of the fluid inlet 8 and the fluid pressure fluctuation portion 10 are connected to the small diameter communication conduit 4 The fluid pressure fluctuating portion 10 is filled with the high pressure fluid, and the diaphragm 5 is acted upon by the differential pressure between the fluid inlet pressure (high pressure portion) and the fluid outlet pressure (low pressure portion) to actuate the diaphragm valve. The diaphragm valve is pressed by the seat 6 and remains closed.
【０００８】ここで、パイロット弁１のソレノイドに通
電して、パイロット弁１を開とすれば、流体圧変動部１
０内の流体は、微小径パイロット流通路７を経由して流
体出口９側に吐出され、流体圧変動部１０内の流体圧は
徐々に低下する。一方、ダイヤフラム５の周辺部には流
体入口（高圧部）８と流体圧変動部１０の差圧が上方に
作用して、ダイヤフラム弁は開となって流体は流体出口
９から吐出する。If the solenoid of the pilot valve 1 is energized and the pilot valve 1 is opened, the fluid pressure fluctuation portion 1
The fluid in 0 is discharged to the fluid outlet 9 side through the small-diameter pilot flow passage 7, and the fluid pressure in the fluid pressure fluctuation portion 10 gradually decreases. On the other hand, the differential pressure between the fluid inlet (high pressure portion) 8 and the fluid pressure fluctuating portion 10 acts upward on the peripheral portion of the diaphragm 5, the diaphragm valve is opened, and the fluid is discharged from the fluid outlet 9.
【０００９】この状態で、パイロット弁のソレノイドの
通電を停止すれば、流体圧変動部１０の流体圧は再度流
体入口８と同様高圧部となって、スプリング１５ａの圧
力も相加されダイヤフラム弁は閉止状態となる。すなわ
ち、図２に示すダイヤフラム弁は、微小口径のパイロッ
ト弁座２の開、閉操作によって大口径のダイヤフラム弁
を開閉し、大量の流体の開閉操作を可能とするもので、 （１）ソレノイドの微小電気エネルギーによって、大径
管路の大量の流体の開閉が可能である。 （２）微小径の、連通管路４とパイロット流通路７の断
面積調整によって、ダイヤフラム弁の変位速度を所定値
に設定することができるので、ダイヤフラム弁の開閉動
作に伴うウォーターハンマー現象を効果的に緩和するこ
とができる。 等の効果を奏する。In this state, if the energization of the solenoid of the pilot valve is stopped, the fluid pressure in the fluid pressure fluctuating portion 10 becomes a high pressure portion again like the fluid inlet 8, and the pressure of the spring 15a is also added to the diaphragm valve. It will be in the closed state. That is, the diaphragm valve shown in FIG. 2 is capable of opening and closing a large-diameter diaphragm valve by opening and closing the small-diameter pilot valve seat 2 to open and close a large amount of fluid. A small amount of electric energy can open and close a large amount of fluid in a large diameter conduit. (2) Since the displacement speed of the diaphragm valve can be set to a predetermined value by adjusting the cross-sectional area of the communication conduit 4 and the pilot flow passage 7 having a small diameter, the water hammer phenomenon associated with the opening / closing operation of the diaphragm valve is effective. Can be relaxed. And so on.
【００１０】図３は、直流の正または負極性のパルスの
コイル通電によって、自己保持操作を可能とする電磁ア
クチュエータの従来技術の一実施例の説明図である。コ
イル１１に正極性の直流のパルスを通電すれば、固定鉄
心１２と可動鉄心１３はスプリング１５の抗力に逆らっ
て吸着し、吸着後にコイル１１の通電を停止しても永久
磁石１４の起磁力の作用によって固定鉄心１２と可動鉄
心１３は吸着状態を保持する。次にこの状態で、コイル
１１に負極性の直流を通電すれば、永久磁石１４による
固定鉄心１２と可動鉄心１３間の磁気吸引力は消失し、
固定鉄心１２と可動鉄心１３は、スプリング１５の抗力
によって、図示位置に復帰し、コイル１１の通電を停止
してもその状態を保持する所謂自己保持開閉操作を実施
することができる。FIG. 3 is an explanatory view of an embodiment of a prior art of an electromagnetic actuator capable of performing a self-holding operation by energizing a coil with a DC positive or negative polarity pulse. When a positive DC pulse is applied to the coil 11, the fixed iron core 12 and the movable iron core 13 are attracted against the resistance of the spring 15, and even if the energization of the coil 11 is stopped after the attraction, the magnetomotive force of the permanent magnet 14 is reduced. Due to the action, the fixed iron core 12 and the movable iron core 13 maintain the attracted state. Next, in this state, if a negative direct current is applied to the coil 11, the magnetic attraction force between the fixed iron core 12 and the movable iron core 13 due to the permanent magnet 14 disappears,
The fixed iron core 12 and the movable iron core 13 are returned to the positions shown by the reaction force of the spring 15, and a so-called self-holding opening / closing operation that holds the state even when the energization of the coil 11 is stopped can be performed.
【００１１】本発明は、図３の電磁アクチュエータを図
２のパイロット弁１に適用し、パイロット弁１のソレノ
イドとして電磁アクチュエータのコイル１１を用いたも
のである。そして、パイロット弁に自己保持開閉操作機
能を持たせるように構成したものである。次いで、図１
（ａ）、（ｂ）によって本発明の作用を説明する。図１
（ａ）はシステム構成図、図１（ｂ）はダイヤフラムの
開閉のタイムチャートである。The present invention applies the electromagnetic actuator of FIG. 3 to the pilot valve 1 of FIG. 2, and uses the coil 11 of the electromagnetic actuator as the solenoid of the pilot valve 1. The pilot valve has a self-holding opening / closing function. Then, FIG.
The operation of the present invention will be described with reference to (a) and (b). Figure 1
1A is a system configuration diagram, and FIG. 1B is a time chart of opening and closing the diaphragm.
【００１２】１１はコイル（図３のコイル）、１６はダ
イヤフラム弁の変位によって動作する電気接点、１６は
ダイヤフラム弁の開閉を検知し正又は負極性の信号を出
力するセンサ（図２では近接スイッチ２０として示し
た）であり、本実施例では、所定極性の直流の通電を阻
止する素子（ダイオード等）を用いている。１９はパイ
ロット弁への通電を検知する通電検知手段（メーター、
リレー等）、１８は所定極性の直流を所要時限印加する
スイッチ（押ボタン等）である。Reference numeral 11 is a coil (coil in FIG. 3), 16 is an electrical contact operated by displacement of the diaphragm valve, 16 is a sensor (proximity switch in FIG. 2) that detects opening / closing of the diaphragm valve and outputs a positive or negative polarity signal. 20), and in the present embodiment, an element (diode or the like) that blocks energization of direct current of a predetermined polarity is used. Reference numeral 19 is an energization detection means (meter, for detecting energization to the pilot valve).
Reference numeral 18 denotes a switch (a push button or the like) for applying a direct current of a predetermined polarity for a required time.
【００１３】すなわち、スイッチ１８の入の押ボタン
を、図１（ｂ）に示すようにｔ0 の間だけ閉じれば、図
１（ａ）の実線矢印のようにコイル１１に通電され、図
２のダイヤフラム弁は、図１（ｂ）に示すように所定時
限ｔ1 の後全開となり、図１（ａ）の電気接点Ｂは開、
Ａは閉となり、実線矢印極性の通電は零となって、通電
検知手段１９によってダイヤフラム弁の開状態を検知す
ることができる。That is, when the push-button of the switch 18 is closed for t 0 as shown in FIG. 1B, the coil 11 is energized as shown by the solid arrow in FIG. The diaphragm valve is fully opened after a predetermined time period t 1 as shown in FIG. 1 (b), and the electric contact B in FIG. 1 (a) is opened.
A is closed, the energization of the solid arrow polarity becomes zero, and the energization detecting means 19 can detect the open state of the diaphragm valve.
【００１４】次にスイッチ１８の切の押しボタンを、図
１（ｂ）に示すようにｔ0 だけ閉とすれば、図１（ａ）
の点線矢印のようにコイル１１に通電され、図２のダイ
ヤフラム弁は図１（ｂ）に示すように所定ｔ2 時限の後
に全閉となり、図１（ａ）の電気接点Ｂは閉、Ａは開と
なって、図１（ａ）の点線矢印極性の通電は停止して通
電検知手段１９によってダイヤフラム弁の閉状態を検知
することができる。Next, if the push button for turning off the switch 18 is closed for t 0 as shown in FIG.
The coil 11 is energized as indicated by the dotted arrow in FIG. 2, the diaphragm valve of FIG. 2 is fully closed after a predetermined time t 2 as shown in FIG. 1B, and the electrical contact B of FIG. 1A is opened, the energization of the dotted arrow polarity in FIG. 1A is stopped, and the energization detecting means 19 can detect the closed state of the diaphragm valve.
【００１５】本発明の第２の実施例は、図１（ａ）の電
気接点Ａ、Ｂをそれぞれ単独のｂ接点で構成し、開放動
作の所定時限後に自動復帰させる構成としたもので、ダ
イヤフラム弁の開閉何れの状態でも、図１（ａ）のスイ
ッチ１８の操作によって、ダイヤフラム弁の開閉の現状
を検知し確認することができる。In the second embodiment of the present invention, each of the electric contacts A and B of FIG. 1A is composed of a single b contact and is automatically restored after a predetermined time period of the opening operation. Regardless of whether the valve is open or closed, the current state of opening and closing the diaphragm valve can be detected and confirmed by operating the switch 18 shown in FIG.
【００１６】[0016]
【実施例】図１から図３により、本発明の実施例を説明
した。ここで、ダイヤフラム弁の開閉の変位を検出する
電気接点１８に替えて、ダイヤフラム弁に固設した、金
属体の近接を検出するリードスイッチ或はリラクタンス
の変化を検出する近接スイッチを用いたり或は弁に流体
流量計を併設して流量の有無を検知する等の手段を採用
することも、流体シール機構の単純化や動作信頼性向上
の点からも好適であり、これ等の近接スイッチの動作出
力を電気信号として、電線路に重畳して伝送することも
容易である。Embodiments of the present invention have been described with reference to FIGS. Here, instead of the electrical contact 18 for detecting the opening / closing displacement of the diaphragm valve, a reed switch fixed to the diaphragm valve for detecting the proximity of a metal body or a proximity switch for detecting a change in reluctance may be used. Adopting a fluid flow meter along with a valve to detect the presence or absence of flow is also preferable from the viewpoint of simplifying the fluid seal mechanism and improving operational reliability. It is also easy to transmit the output as an electric signal by superimposing it on the electric line.
【００１７】[0017]
【発明の効果】本発明は、次のような優れた効果を奏
し、ガスや上水道等の大規模な流体供給システム等の遠
方制御装置を容易に構成することができ、産業、民生の
分野に大きく貢献できる。 （１）一対の電線路で被制御器の遠隔制御およびその確
認を可能とし、電線路の設備費の大幅な低減を可能とす
る。 （２）消費電気エネルギーが微小で短時限となるため、
乾電池等の微小電源によるシステム構成を可能とする。 （３）構成が単純で頑丈であり、設備費とメインテナン
ス費を節減できる。INDUSTRIAL APPLICABILITY The present invention has the following excellent effects and can easily configure a remote control device such as a large-scale fluid supply system for gas, water supply, etc., and is suitable for industrial and consumer fields. You can contribute greatly. (1) Remote control of the controlled device and its confirmation can be performed with a pair of electric lines, and the facility cost of the electric line can be significantly reduced. (2) Because the consumed electric energy is minute and the time is short,
Enables system configuration with a minute power source such as dry batteries. (3) The structure is simple and sturdy, and the equipment cost and maintenance cost can be reduced.
【図１】本発明の説明図であり、図１（ａ）はシステム
構成図、図１（ｂ）はダイヤフラムの開閉のタイムチャ
ートである。FIG. 1 is an explanatory diagram of the present invention, FIG. 1A is a system configuration diagram, and FIG. 1B is a time chart of opening and closing of a diaphragm.
【図２】パイロット弁を用いたダイヤフラム弁の断面の
説明図である。FIG. 2 is an explanatory view of a cross section of a diaphragm valve using a pilot valve.
【図３】パイロット弁に使用される電磁アクチュエータ
の断面の説明図である。FIG. 3 is an explanatory view of a cross section of an electromagnetic actuator used for a pilot valve.
１ パイロット弁 ２ パイロット弁座 ３ パイロット弁ゴム ４ 微小径連通管路 ５ ダイヤフラム ６ ダイヤフラム弁座 ７ 微小径パイロット流通路 ８ 流体入口（高圧部） ９ 流体出口（低圧部） １０ 流体圧変動部 １１ コイル １２ 固定鉄心 １３ 可動鉄心 １４ 永久磁石 １５、１５ａ スプリング １６ 電気接点 １７ ダイオード １８ スイッチ １９ 通電検知手段 ２０ 近接スイッチ ｔ0 、ｔ1 、ｔ2 …時限間隔1 Pilot valve 2 Pilot valve seat 3 Pilot valve rubber 4 Small diameter communication conduit 5 Diaphragm 6 Diaphragm valve seat 7 Small diameter pilot flow passage 8 Fluid inlet (high pressure part) 9 Fluid outlet (low pressure part) 10 Fluid pressure fluctuation part 11 Coil 12 fixed iron core 13 movable iron core 14 permanent magnets 15 and 15a spring 16 electric contact point 17 diode 18 switch 19 energization detecting means 20 proximity switch t 0 , t 1 , t 2 ... time interval
Claims (2)
て開閉の自己保持操作を行うパイロット弁と、該パイロ
ット弁の操作によって作動するダイヤフラム弁と、該ダ
イヤフラム弁の開閉を検知し正又は負極性の信号を出力
するセンサと、該パイロット弁に所要極性の直流電流を
供給する電流の印加手段及び該パイロット弁への通電を
検知する検知手段からなることを特徴とする弁制御装
置。1. A pilot valve that performs a self-holding operation of opening and closing by positive or negative polarity DC energization, a diaphragm valve that operates by the operation of the pilot valve, and a positive or negative polarity that detects opening and closing of the diaphragm valve. A valve control device comprising: a sensor that outputs the signal of 1), a current application unit that supplies a direct current of a required polarity to the pilot valve, and a detection unit that detects energization of the pilot valve.
時限経過後に、該センサーを、該ダイヤフラム弁の開閉
を検知する以前の状態に自動的に復帰させる請求項１の
弁制御装置。2. The valve control device according to claim 1, wherein after a lapse of a predetermined time period when the opening / closing of the diaphragm valve is detected, the sensor is automatically returned to the state before the opening / closing of the diaphragm valve is detected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5333695A JPH07190235A (en) | 1993-12-27 | 1993-12-27 | Valve control device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5333695A JPH07190235A (en) | 1993-12-27 | 1993-12-27 | Valve control device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH07190235A true JPH07190235A (en) | 1995-07-28 |
Family
ID=18268937
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP5333695A Pending JPH07190235A (en) | 1993-12-27 | 1993-12-27 | Valve control device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH07190235A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7278437B2 (en) | 2002-12-19 | 2007-10-09 | Fujikin Incorporated | Method for closing fluid passage, and water hammerless valve device and water hammerless closing device used in the method |
| US7849869B2 (en) | 2004-01-20 | 2010-12-14 | Fujikin Incorporated | Method for water hammerless opening of fluid passage, and method for supplying chemical solutions and device for water hammerless opening for which the method is used |
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1993
- 1993-12-27 JP JP5333695A patent/JPH07190235A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6343081A (en) * | 1986-08-06 | 1988-02-24 | Hitachi Constr Mach Co Ltd | Monitoring device for operating state of solenoid operated valve |
| JPH04102776A (en) * | 1990-08-14 | 1992-04-03 | Matsushita Electric Works Ltd | Solenoid valve driving circuit |
| JPH0650456A (en) * | 1992-02-11 | 1994-02-22 | Sloan Valve Co | Sensor operation type battery driving type flush valve |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7278437B2 (en) | 2002-12-19 | 2007-10-09 | Fujikin Incorporated | Method for closing fluid passage, and water hammerless valve device and water hammerless closing device used in the method |
| EP1852764A1 (en) | 2002-12-19 | 2007-11-07 | Fujikin Incorporated | Water hammerless closing devices and corresponding methods |
| US8020574B2 (en) | 2002-12-19 | 2011-09-20 | Tadahiro Ohmi | Method for closing fluid passage, and water hammerless valve device and water hammerless closing device used in the method |
| US7849869B2 (en) | 2004-01-20 | 2010-12-14 | Fujikin Incorporated | Method for water hammerless opening of fluid passage, and method for supplying chemical solutions and device for water hammerless opening for which the method is used |
| US8047225B2 (en) | 2004-01-20 | 2011-11-01 | Fujikin Incorporated | Method for water hammerless opening of fluid passage, and method for supplying chemical solutions and device for water hammerless opening for which the method is used |
| US8714188B2 (en) | 2004-01-20 | 2014-05-06 | Fujikin Incorporated | Method for water hammerless opening of fluid passage, and method for supplying chemical solutions and device for water hammerless opening for which the method is used |
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| Date | Code | Title | Description |
|---|---|---|---|
| A02 | Decision of refusal |
Free format text: JAPANESE INTERMEDIATE CODE: A02 Effective date: 19970218 |