JPH07113432B2 - Proportional control valve for gas - Google Patents
Proportional control valve for gasInfo
- Publication number
- JPH07113432B2 JPH07113432B2 JP17088389A JP17088389A JPH07113432B2 JP H07113432 B2 JPH07113432 B2 JP H07113432B2 JP 17088389 A JP17088389 A JP 17088389A JP 17088389 A JP17088389 A JP 17088389A JP H07113432 B2 JPH07113432 B2 JP H07113432B2
- Authority
- JP
- Japan
- Prior art keywords
- gas
- diaphragm
- valve body
- valve
- flow rate
- 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
- 230000007423 decrease Effects 0.000 claims description 3
- 230000004044 response Effects 0.000 claims description 2
- 238000002485 combustion reaction Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000009931 harmful effect Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
Landscapes
- Flow Control (AREA)
- Control Of Fluid Pressure (AREA)
- Magnetically Actuated Valves (AREA)
Description
【発明の詳細な説明】 ［産業上の利用分野］ 本発明は、ガスの燃焼出力を比例的に制御するようにし
たガスガバナーと電磁装置の組合わせからなる制御弁、
特に大流量と小流量制御を行えるようにしたガス比例制
御弁に関する。DETAILED DESCRIPTION OF THE INVENTION [Industrial application] The present invention relates to a control valve composed of a combination of a gas governor and an electromagnetic device for proportionally controlling the combustion output of gas,
In particular, it relates to a gas proportional control valve capable of controlling a large flow rate and a small flow rate.
［従来の技術］ ガス燃焼出力を比例的に制御し得るようにしたガス比例
制御弁は、特開昭61−231325号、同57−112609号、実開
昭63−1975号、特開平１−14603号の各公報にみられる
ように一般に知られている。[Prior Art] A gas proportional control valve capable of proportionally controlling a gas combustion output is disclosed in JP-A-61-231325, JP-A-57-112609, JP-A-63-1975 and JP-A-1-. It is generally known as seen in each of the 14603 publications.
このような従来のガス比例制御弁の基本的な構成は、第
１図に示すように、ガス圧力の変動でダイヤフラム51を
応動させて弁口52を広狭変化させることによりガス圧を
一定の範囲に制御するものである。弁体53は、ダイヤフ
ラム51に取付けられてダイヤフラムと一体的に応動する
とともに、電磁装置54の作動でコイル55に通電するとヨ
ーク56が励磁されて、マグネット57に反発磁力が作用し
て弁体53を開弁させるようにコントロールするものであ
る。As shown in FIG. 1, the basic structure of such a conventional gas proportional control valve is that the diaphragm 51 is made to respond to the fluctuation of the gas pressure and the valve opening 52 is widened or narrowed so that the gas pressure is within a certain range. To control. The valve body 53 is attached to the diaphragm 51 and responds integrally with the diaphragm, and when the coil 55 is energized by the operation of the electromagnetic device 54, the yoke 56 is excited and a repulsive magnetic force acts on the magnet 57 to cause the valve body 53 to move. It controls to open the valve.
［発明が解決しようとする課題］ しかし、このような従来の比例制御弁においては、次の
ような問題点がある。[Problems to be Solved by the Invention] However, such a conventional proportional control valve has the following problems.
（１） 大流量と小流量のガス圧設定が何れか一方と
なり、同時に両方の設定が困難である。(1) Either the large flow rate or the small flow rate gas pressure is set, and it is difficult to set both of them at the same time.
（２） 大流量と小流量の２設定が可能なものでも互
いに大きな相互干渉が発生する。(2) Even if a large flow rate and a small flow rate can be set, large mutual interference occurs.
（３） 大流量と小流量の設定値が一次ガス圧変動に
対して安定した供給が困難である。(3) It is difficult to stably supply the set values of the large flow rate and the small flow rate against the fluctuation of the primary gas pressure.
（４） 絞り比率が増加すれば、弁の振動現象が発生
し、又温度変化等の影響による変動が発生し易い。(4) If the throttle ratio increases, a valve vibration phenomenon occurs, and fluctuations due to temperature changes and the like are likely to occur.
（５） 大きな弁で小さい流量を制御することになる
ために、各種の変動に対する弊害が大きく、又部品精度
の確保も困難である。(5) Since a large flow rate is used to control a small flow rate, there are great adverse effects on various fluctuations, and it is also difficult to secure component accuracy.
（６） 小流量制御時には、弁体と弁座の隙間によっ
て流量の制御を行うことになるため、数ミクロンの精度
が要求され、製作加工が困難でコスト高になる。(6) During the small flow rate control, the flow rate is controlled by the gap between the valve body and the valve seat, so accuracy of several microns is required, and the manufacturing process is difficult and the cost is high.
本発明は、従来の技術の有するこのような問題点に鑑み
てなされたものであり、その目的とするところは、大流
量と小流量のガス圧設定が簡単確実に行えるとともに、
機能面で独立し、相互に干渉することのないガス比例制
御弁を提供しようとするものである。The present invention has been made in view of such problems of the conventional technology, and the purpose thereof is to easily and surely set the gas pressures of a large flow rate and a small flow rate,
It is intended to provide a gas proportional control valve that is functionally independent and does not interfere with each other.
［課題を解決するための手段］ 上記目的を達成するために、本発明におけるガス比例制
御弁は、ガス入口１とガス出口２を有する弁ケース本体
３に、ガス圧により変動するダイヤフラム４と、これに
連動するように取付けられてガス出口２への弁口５を広
狭変化させるように開閉する主弁体６、及びダイヤフラ
ム４の動きを磁力にて外的にコントロールするようにコ
イル７にて励磁されるヨーク８とマグネット９とよりな
る電磁装置10とを備え、前記主弁体６には、その内部に
第２のダイヤフラム11とその第２のダイヤフラムと共動
して第２の弁口13を開閉させる第２の弁体12とを設け、
前記第２の弁体12は、主弁体６が閉止時に二次ガス圧の
減少に応動して開弁し小流量制御を行うように設定して
なるものである。[Means for Solving the Problems] In order to achieve the above object, a gas proportional control valve according to the present invention includes a valve case body 3 having a gas inlet 1 and a gas outlet 2, a diaphragm 4 that varies depending on gas pressure, A coil 7 is attached so as to interlock with this, and a coil 7 is used to externally control the movement of the main valve body 6 that opens and closes the valve opening 5 to the gas outlet 2 in a wide and narrow manner, and the magnetic force. An electromagnetic device 10 including a magnetized yoke 8 and a magnet 9 is provided, and the main valve body 6 has a second diaphragm 11 inside and a second valve opening cooperating with the second diaphragm 11. And a second valve body 12 for opening and closing 13,
The second valve body 12 is set so that when the main valve body 6 is closed, it opens in response to a decrease in the secondary gas pressure to perform a small flow rate control.
そして上記ガス比例制御弁は、第２の弁体に、ねじの操
作によって張力を外的にコントロールする調整ばねを設
けることが好ましい。Further, in the gas proportional control valve, it is preferable that the second valve body is provided with an adjusting spring for externally controlling the tension by operating a screw.
［作用］ 第２図において、電磁装置10のコイル７に電流を印加す
ると、ヨーク８に磁極が発生し、マグネット９に対し反
発磁力が発生する。この為ダイヤフラム４はマグネット
９とともにヨーク８から遠ざかる方向に押しやられる為
主弁体６は開弁する。[Operation] In FIG. 2, when a current is applied to the coil 7 of the electromagnetic device 10, a magnetic pole is generated in the yoke 8 and a repulsive magnetic force is generated in the magnet 9. Therefore, the diaphragm 4 is pushed together with the magnet 9 in the direction away from the yoke 8, so that the main valve body 6 is opened.
この主弁体６の開方向の移動によって、出口側に二次圧
力P2が発生する。By the movement of the main valve body 6 in the opening direction, the secondary pressure P 2 is generated on the outlet side.
ガス入口１のガスが弁口５を経てガス出口２側へ流出す
ることにより二次圧力P2が徐々に高くなる。すると小流
量制御用の弁体12は閉塞状態となる。この状態で入口側
の一次圧力P1が増大すると、ダイヤフラム４が上方へ膨
大するからこれに伴い主弁体６は閉止方向に動き、ガス
流量を制限する。その為一次圧力P1が低下するから再び
弁口５は大きくなり、これの繰り返えしで大流量設定値
の制御が行われる。The secondary pressure P 2 gradually increases as the gas at the gas inlet 1 flows out to the gas outlet 2 side through the valve port 5. Then, the valve body 12 for controlling the small flow rate is closed. When the primary pressure P 1 on the inlet side increases in this state, the diaphragm 4 swells upward, and accordingly, the main valve body 6 moves in the closing direction to limit the gas flow rate. Therefore, the primary pressure P 1 decreases and the valve opening 5 increases again. By repeating this, the large flow rate set value is controlled.
次に、小流量制御時には、電磁装置10のコイル７への通
電を停止する。すると、ヨーク８の磁極が消失するため
今まで反発していたマグネット９とヨーク８に吸引力が
作用して、主弁体６は閉弁する。Next, during the small flow rate control, the energization of the coil 7 of the electromagnetic device 10 is stopped. Then, since the magnetic pole of the yoke 8 disappears, the attraction force acts on the magnet 9 and the yoke 8 which have been repulsed until now, and the main valve body 6 is closed.
この状態で小流量制御用の弁体12は、第２のダイヤフラ
ム11と調整用ばね14とのバランスによって保持されるか
ら入口１側のガスは、通孔17から第２の弁口13を経て出
口２側へ流出する。従ってこの場合には、一次圧力P1が
印加された状態で調整ばね14を所定の値に設定すること
により最小圧力の設定が可能となる。又、第２の弁体12
は第２のダイヤフラム11の動きに応じてガバナー作用を
行う為小流量設定域においてガス出力の比例制御が行わ
れる。In this state, the valve body 12 for controlling the small flow rate is held by the balance between the second diaphragm 11 and the adjusting spring 14, so that the gas on the inlet 1 side passes through the through hole 17 and the second valve opening 13. It flows to the exit 2 side. Therefore, in this case, the minimum pressure can be set by setting the adjusting spring 14 to a predetermined value while the primary pressure P 1 is applied. Also, the second valve body 12
Performs a governor action according to the movement of the second diaphragm 11, so that proportional control of the gas output is performed in the small flow rate setting region.
調整ばね14の張力調整は、ねじ15によって行われる。ね
じ15を右方向へ回動すると、上方へ進行してばね14の張
力が強くなり、逆に左方向へ回動すると弱くなる。The tension of the adjusting spring 14 is adjusted by the screw 15. When the screw 15 is rotated to the right, it moves upward to increase the tension of the spring 14, and conversely, when it is rotated to the left, it becomes weak.
［実施例］ 第２図に示すように、電磁装置10は、ケース20とその中
にコイル７を巻いたボビンケース21、及びボビンケース
の中心の縦孔22内に嵌挿固定したヨーク８とよりなる。
ヨーク８は、ねじ式にして上下方向の位置が調整される
ようになす。23はその固定用のナットである。[Embodiment] As shown in FIG. 2, an electromagnetic device 10 includes a case 20, a bobbin case 21 having a coil 7 wound therein, and a yoke 8 fitted and fixed in a vertical hole 22 at the center of the bobbin case. Consists of.
The yoke 8 is of a screw type so that its vertical position can be adjusted. 23 is a nut for fixing the same.
マグネット９は、ヨーク８に対応するようにダイヤフラ
ム４に取付け、ヨーク８との吸引力又は反発磁力によっ
て上下に移動する。The magnet 9 is attached to the diaphragm 4 so as to correspond to the yoke 8 and moves up and down by an attractive force or a repulsive magnetic force with the yoke 8.
主弁体６は、ダイヤフラム４にこれと一体に取付けてダ
イヤフラム４の動きに共動する。The main valve body 6 is attached to the diaphragm 4 integrally therewith, and cooperates with the movement of the diaphragm 4.
主弁体６は、ダイヤフラム側の取付部6aと、弁体部6bと
よりなり、両者を結合して一体となす。そしてその結合
部に第２のダイヤフラム11を周縁部が挟着されるように
一体に取付ける。この主弁体６を中空に形成してその中
空内部に第２の弁体12を両者の軸心が一致するように組
入れ、弁体上端を第２のダイヤフラム11に取付ける。こ
の第２のダイヤフラム11には、ばね16を設けてそのばね
圧とダイヤフラム11の張力を加えたものが、調整ばね14
とバランスするようになす。ばね16は、これを設けない
場合もある。The main valve body 6 is composed of a mounting portion 6a on the diaphragm side and a valve body portion 6b. Then, the second diaphragm 11 is integrally attached to the connecting portion so that the peripheral edge portion is sandwiched. The main valve body 6 is formed hollow, the second valve body 12 is installed inside the hollow so that the axes of the two are aligned, and the upper end of the valve body is attached to the second diaphragm 11. The second diaphragm 11 is provided with a spring 16 and the spring pressure and the tension of the diaphragm 11 are applied thereto.
And try to balance it. The spring 16 may not be provided.
ねじ15は、ばね受け部15aを有するねじ軸15bを弁ケース
本体３に形成した円筒部15cに進退移動しうるように螺
入して外部に突出するつまみ15dを回わすことにより操
作する。The screw 15 is operated by screwing a screw shaft 15b having a spring receiving portion 15a into a cylindrical portion 15c formed in the valve case main body 3 so as to move back and forth, and turning a knob 15d protruding to the outside.
［発明の効果］ 本発明は、上述のとおり構成されているので、次に記載
する効果を奏する。[Advantages of the Invention] Since the present invention is configured as described above, it has the effects described below.
ガス燃焼出力を、大流量と小流量値の設定が可能
であり、特に小流量値のガス圧を一次ガス圧力の変動に
対して安定した供給を行うことができる。The gas combustion output can be set to a large flow rate and a small flow rate value, and in particular, a gas pressure with a small flow rate value can be stably supplied against fluctuations in the primary gas pressure.
大流量と小流量の設定が機能面で独立し、相互に
干渉しない。The large flow rate and small flow rate settings are functionally independent and do not interfere with each other.
絞り比率が増加しても、弁の振動、温度変化等の
影響による変動が生じない。Even if the throttle ratio increases, fluctuations due to valve vibration, temperature change, etc. do not occur.
大きな弁で小さな流量を制御するために発生する
従来の弊害、不具合を完全になくすことができ、又部品
精度の確保が容易となるため、製作、加工が簡単で、安
価に実施できる。It is possible to completely eliminate the conventional harmful effects and inconveniences caused by controlling a small flow rate with a large valve, and since it is easy to ensure the accuracy of parts, it is easy to manufacture and process, and it is possible to carry out at low cost.
図面は本発明に係るガス比例制御弁の実施例を示すもの
で、第１図は従来の制御弁の断面図、第２図は本発明の
制御弁の縦断側面図である。 １……ガス入口、２……ガス出口 ３……弁ケース本体、４……ダイヤフラム ５……弁口、６……主弁体 ７……コイル、８……ヨーク ９……マグネット、10……電磁装置 11……第２のダイヤフラム、12……第２の弁体 13……第２の弁口、14……ばね 15……調整ねじThe drawings show an embodiment of a gas proportional control valve according to the present invention. FIG. 1 is a sectional view of a conventional control valve, and FIG. 2 is a longitudinal side view of the control valve of the present invention. 1 ... Gas inlet, 2 ... Gas outlet 3 ... Valve case body, 4 ... Diaphragm 5 ... Valve opening, 6 ... Main valve body 7 ... Coil, 8 ... Yoke 9 ... Magnet, 10 ... … Electromagnetic device 11 …… Second diaphragm, 12 …… Second valve body 13 …… Second valve opening, 14 …… Spring 15 …… Adjusting screw
Claims (2)
本体３に、ガス圧により変動するダイヤフラム４と、こ
れに連動するように取付けられてガス出口２への弁口５
を広狭変化させるように開閉する主弁体６、及びダイヤ
フラム４の動きを磁力にて外的にコントロールするよう
にコイル７にて励磁されるヨーク８とマグネット９とよ
りなる電磁装置10とを備え、前記主弁体６には、その内
部に第２のダイヤフラム11とその第２のダイヤフラムと
共動して第２の弁口13を開閉させる第２の弁体12とを設
け、前記第２の弁体12は、主弁体６が閉止時に二次ガス
圧の減少に応動して開弁し小流量制御を行うように設定
してなることを特徴とするガス用比例制御弁。1. A valve case main body 3 having a gas inlet 1 and a gas outlet 2 and a diaphragm 4 which fluctuates depending on the gas pressure, and a valve opening 5 to the gas outlet 2 which is mounted so as to interlock with the diaphragm 4.
A main valve body 6 that opens and closes so as to vary widely, and an electromagnetic device 10 including a yoke 8 and a magnet 9 that are excited by a coil 7 so as to externally control the movement of the diaphragm 4 by magnetic force. The main valve body 6 is provided therein with a second diaphragm 11 and a second valve body 12 which cooperates with the second diaphragm 11 to open and close the second valve opening 13, The valve body 12 is a proportional control valve for gas, characterized in that when the main valve body 6 is closed, it opens in response to a decrease in the secondary gas pressure to perform a small flow rate control.
て張力を外的にコントロールする調整ばね14を設けた請
求項１記載のガス用比例制御弁。2. A proportional control valve for gas according to claim 1, wherein the second valve body 12 is provided with an adjusting spring 14 for externally controlling tension by operating a screw 15.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP17088389A JPH07113432B2 (en) | 1989-06-30 | 1989-06-30 | Proportional control valve for gas |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP17088389A JPH07113432B2 (en) | 1989-06-30 | 1989-06-30 | Proportional control valve for gas |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0337489A JPH0337489A (en) | 1991-02-18 |
| JPH07113432B2 true JPH07113432B2 (en) | 1995-12-06 |
Family
ID=15913082
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP17088389A Expired - Fee Related JPH07113432B2 (en) | 1989-06-30 | 1989-06-30 | Proportional control valve for gas |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH07113432B2 (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0393664U (en) * | 1990-01-10 | 1991-09-25 | ||
| EP0911714A1 (en) * | 1997-10-20 | 1999-04-28 | Electrowatt Technology Innovation AG | Flow control valve with integrated pressure controller |
| CN113803480B (en) * | 2021-11-17 | 2022-02-08 | 星宇电子(宁波)有限公司 | High-stability high-voltage electric proportional valve |
| JP7726837B2 (en) * | 2022-04-11 | 2025-08-20 | リンナイ株式会社 | Gas governor |
-
1989
- 1989-06-30 JP JP17088389A patent/JPH07113432B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0337489A (en) | 1991-02-18 |
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