JPS5868568A - Proportional control valve - Google Patents
Proportional control valveInfo
- Publication number
- JPS5868568A JPS5868568A JP16684981A JP16684981A JPS5868568A JP S5868568 A JPS5868568 A JP S5868568A JP 16684981 A JP16684981 A JP 16684981A JP 16684981 A JP16684981 A JP 16684981A JP S5868568 A JPS5868568 A JP S5868568A
- Authority
- JP
- Japan
- Prior art keywords
- pressure
- secondary pressure
- proportional control
- control valve
- 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.)
- Granted
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K31/00—Actuating devices; Operating means; Releasing devices
- F16K31/02—Actuating devices; Operating means; Releasing devices electric; magnetic
- F16K31/06—Actuating devices; Operating means; Releasing devices electric; magnetic using a magnet, e.g. diaphragm valves, cutting off by means of a liquid
- F16K31/0644—One-way valve
- F16K31/0655—Lift valves
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K31/00—Actuating devices; Operating means; Releasing devices
- F16K31/02—Actuating devices; Operating means; Releasing devices electric; magnetic
- F16K31/06—Actuating devices; Operating means; Releasing devices electric; magnetic using a magnet, e.g. diaphragm valves, cutting off by means of a liquid
- F16K31/0644—One-way valve
- F16K31/0672—One-way valve the valve member being a diaphragm
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Fluid-Driven Valves (AREA)
- Magnetically Actuated Valves (AREA)
Abstract
Description
【発明の詳細な説明】
本発明は燃焼機器の燃焼出力を連続的に制御するに必要
な圧力式比例制御弁に関する。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a pressure type proportional control valve necessary for continuously controlling the combustion output of combustion equipment.
第１図は、従来の圧力式比例制御弁の概要図であり、圧
力式比例制御舟外装置内上部に電磁コイル２を配置し、
この電磁コイル２の中央に、板バネ３で支えられた電磁
プランジャ４が挿通され、そして、この電磁プランジャ
４の下部に、ダイヤフラム部６と弁体ｅが固着されてい
る。また、７は電磁プランジャ４．ダイヤフラム部６及
び弁体６等の自重を支える為のスプリング、８は弁座部
、９ａは一次圧室、９ｂは燃料流入口、１０ ａは二次
王室、１０ｂは燃料出口を示している。FIG. 1 is a schematic diagram of a conventional pressure-type proportional control valve, in which an electromagnetic coil 2 is arranged in the upper part of the pressure-type proportional control outboard device.
An electromagnetic plunger 4 supported by a leaf spring 3 is inserted into the center of the electromagnetic coil 2, and a diaphragm portion 6 and a valve body e are fixed to the lower part of the electromagnetic plunger 4. 7 is an electromagnetic plunger 4. A spring for supporting the weight of the diaphragm portion 6 and the valve body 6, etc., 8 is a valve seat portion, 9a is a primary pressure chamber, 9b is a fuel inlet, 10a is a secondary chamber, and 10b is a fuel outlet.
上記構成において、電磁コイル２に駆動電流ｉを加える
と電磁プランジャ４に吸引力が働き、弁体５は下方に押
し下げられ、板バネ３の上向きの復元力とつりあった位
置に停止する。このとき、弁体６と弁座８で形成される
弁開度の大小により燃料流入口９ｂの圧力である一次圧
力Ｐ１ に対し、燃料出口１０ｂの圧力である二次圧力
Ｐ２が、一義的に制御される。また、このタイプの圧力
式比例制御弁は、−次圧力Ｐ１ を受けるダイヤフラム
部５の有効径と、同様に一次圧力Ｐ１ を受ける弁体６
の上面有効径が同一寸法の為に、上下方向に働く力が打
消し合い電磁コイル２に加える駆動電流ｉが同一の場合
は、−次圧力Ｐ１ が変化しても二次圧力Ｐ２は変化し
ない。すなわち、二次圧力Ｐ２は一次圧力の変化に関係
なく電磁コイル２に加える駆動電流ｉの関数になり、Ｐ
２＝ｆ（ｉ）で表わされる。故に駆動電流ｉの増減に対
応し５て、二次圧力Ｐ２が制御されるものであ・る。In the above configuration, when a driving current i is applied to the electromagnetic coil 2, an attractive force acts on the electromagnetic plunger 4, and the valve body 5 is pushed down and stopped at a position balanced with the upward restoring force of the leaf spring 3. At this time, depending on the degree of opening of the valve formed by the valve body 6 and the valve seat 8, the secondary pressure P2, which is the pressure at the fuel outlet 10b, is uniquely different from the primary pressure P1, which is the pressure at the fuel inlet 9b. controlled. In addition, this type of pressure type proportional control valve has an effective diameter of the diaphragm portion 5 which receives the secondary pressure P1, and a valve body 6 which similarly receives the primary pressure P1.
Since the upper surface effective diameter is the same size, the forces acting in the vertical direction cancel each other out, and if the driving current i applied to the electromagnetic coil 2 is the same, the secondary pressure P2 will not change even if the -secondary pressure P1 changes. . In other words, the secondary pressure P2 becomes a function of the drive current i applied to the electromagnetic coil 2 regardless of changes in the primary pressure, and P2
2=f(i). Therefore, the secondary pressure P2 is controlled in response to an increase or decrease in the drive current i.
一方、この圧力式比例制御弁を長期間使用していると、
圧力式比例制御弁駆動部の摩擦抵抗の増大、あるいは、
ダイヤスラムの経年劣化等が起る場合もあり電磁コイル
２に加える駆動電流ｉが同一でも、使用初期と年数経過
後とを比較した場合弁体６と弁座８の間隙が同一にはな
らない、すなわち、二次圧力Ｐ２がくるってしまうとい
う欠点があった。On the other hand, if this pressure type proportional control valve is used for a long period of time,
Increase in frictional resistance of the pressure proportional control valve drive unit, or
The diaphragm may deteriorate over time, and even if the driving current i applied to the electromagnetic coil 2 is the same, the gap between the valve body 6 and the valve seat 8 will not be the same when comparing the initial period of use and after a number of years have passed. That is, there is a drawback that the secondary pressure P2 is distorted.
本発明は、圧力式比例制御弁で制御された二次圧力Ｐ２
を、即座に検出できる圧力検出器を圧力式比例制御弁に
内蔵させることにより、容易にフィードバック制御系の
構成実施を可能ならしめて、上記従来の欠点を解消する
ものである。The present invention provides a secondary pressure P2 controlled by a pressure type proportional control valve.
By incorporating a pressure detector that can instantly detect the pressure type proportional control valve into the pressure type proportional control valve, it is possible to easily construct a feedback control system, thereby solving the above-mentioned conventional drawbacks.
以下本発明の一実施例を第２図、第３図にもとづいて説
明する。なお、従来例の第１図と同一の部分については
、同一番号を付けて、説明を省略する。An embodiment of the present invention will be described below with reference to FIGS. 2 and 3. It should be noted that the same parts as in FIG. 1 of the conventional example are given the same numbers and the explanation will be omitted.
第２図において、１１は二次圧力検出部、１２は二次圧
力Ｐ２を第２のダイヤフラム部１３へ導く為の導通孔、
１４ａは一次コイル部、１４ｂＮ。In FIG. 2, 11 is a secondary pressure detection part, 12 is a conduction hole for guiding the secondary pressure P2 to the second diaphragm part 13,
14a is a primary coil portion, 14bN.
二次コイル部、１５は第２のダイヤフラム部１３と連動
して動く磁性体コア部、そして、１６は第２のダイヤフ
ラム部１３及び磁性体コア部１６の自重とバランスさせ
る為の第２のスプリングを示している。The secondary coil section, 15 is a magnetic core section that moves in conjunction with the second diaphragm section 13, and 16 is a second spring for balancing the weight of the second diaphragm section 13 and the magnetic core section 16. It shows.
上記構成において、電磁コイル２に加える駆動電流ｌを
制御することにより、−次圧力Ｐ１の大小にかかわらず
、二次圧力Ｐ２を任意の値に制御できることは従来例と
同一である。In the above configuration, by controlling the drive current l applied to the electromagnetic coil 2, the secondary pressure P2 can be controlled to an arbitrary value regardless of the magnitude of the secondary pressure P1, which is the same as in the conventional example.
然るに、本発明では、制御された二茨圧力Ｐ２５ 、
を導通孔１２を通して第２のダイヤフラム部１３に導び
いているので、その圧力９大小に対応して、磁性体コア
部１６が上・下方向に可動し、第２のスプリング１６と
バランスしたところで停止する。However, in the present invention, since the controlled two-thorn pressure P25, is guided to the second diaphragm part 13 through the conduction hole 12, the magnetic core part 16 moves upward and downward depending on the magnitude of the pressure 9. direction, and stops when balanced with the second spring 16.
したがって、磁性体コア部１６の変位に対応した電圧を
１４ｂの二次コイルから得ることができる。Therefore, a voltage corresponding to the displacement of the magnetic core portion 16 can be obtained from the secondary coil 14b.
すなわち、二次圧力Ｐ２のフィードバック信号が電圧と
して圧力式比例制御弁から得られることになる。That is, a feedback signal of the secondary pressure P2 is obtained as a voltage from the pressure type proportional control valve.
第３図は、本発明圧力式比例制御弁の一使用実施例を説
明する為の自動制御系のブロック線図を示しており、Ａ
は設定部、Ｂは加え合せ点、Ｃは調節操作部、Ｄは本発
明の圧力式比例制御弁、そしてＥはフィードバック信号
系である。上記構成を見れば明らかなように、自動制御
系のフィードバック信号が容易にＤの圧力式比例制御弁
から取出すことができ、自動制御系を容易に構成実施で
きるので、第２図に示す電磁コイル２に加えられた駆動
電流ｉに対応する二次圧力Ｐ２がＤの圧力式比例制御弁
の経年変化、その他の理由によシ、初期値からづれるこ
とかあっても、自動的に補正されるので、きわめて正確
に二次圧力Ｐ２を制御することができる。FIG. 3 shows a block diagram of an automatic control system for explaining an embodiment of the use of the pressure-type proportional control valve of the present invention.
is a setting section, B is a summing point, C is an adjustment operation section, D is a pressure type proportional control valve of the present invention, and E is a feedback signal system. As is clear from the above configuration, the feedback signal of the automatic control system can be easily taken out from the pressure type proportional control valve D, and the automatic control system can be easily configured and implemented. Even if the secondary pressure P2 corresponding to the drive current i applied to D deviates from the initial value due to aging of the pressure proportional control valve D or other reasons, it will be automatically corrected. Therefore, the secondary pressure P2 can be controlled extremely accurately.
以上の説明から明らかなように、本発明の圧力式比例制
御弁は、自動制御系の構成を容易にさせかつ、二次圧力
Ｐ２を正確に制御させる手段を提供するばかりでなく、
本発明の圧力式比例制御弁をフィードバック制御系の中
で使用する限りにおいては、ダイヤフラム部、弁、弁座
等の加工精度。As is clear from the above description, the pressure type proportional control valve of the present invention not only facilitates the configuration of an automatic control system and provides a means for accurately controlling the secondary pressure P2, but also
As long as the pressure type proportional control valve of the present invention is used in a feedback control system, the processing accuracy of the diaphragm, valve, valve seat, etc.
組立精度をゆるくでき、したがって、コストもそれだけ
安くできるという効果、更には、圧力検出器を内蔵した
ことにより、独立した圧力検出器を従来の圧力式比例制
御弁燃料出口後方配管途中に設置する場合に比較して応
答性に優れているという効果が得られるものである。Assembling accuracy can be relaxed, and costs can therefore be reduced accordingly.Furthermore, by having a built-in pressure sensor, it is possible to install an independent pressure sensor in the middle of the pipe behind the fuel outlet of a conventional pressure-type proportional control valve. This provides the effect of superior responsiveness compared to the previous method.
そしてまた、以上の効果の他に、本発明の圧力式比例制
御弁から出力されているフィードバック信号を利用すれ
ば、燃焼機器における空燃比例制御も容易に実現できる
等その効果には多大なるものがある。In addition to the above-mentioned effects, by using the feedback signal output from the pressure-type proportional control valve of the present invention, air-fuel proportional control in combustion equipment can be easily realized. There is.
第１図は従来の比例制御弁の構成図、第２図は本発明の
一実施例における比例制御弁の構成図、第３図は本発明
の比例制御弁の使用状態を示す自動制御系ブロック線図
である０
２．４・・・・・・電磁駆動部、６・・・・・・ダイヤ
フラム、６・・・・・・弁体、９ａ・・・・・・−次圧
室、１０ ａ・・・・・・二次圧室、１１・・・・・・
圧力電気変換部。
代理人の氏名 弁理士 中 尾 敏 男 ほか１名ＩＩ
図Fig. 1 is a block diagram of a conventional proportional control valve, Fig. 2 is a block diagram of a proportional control valve according to an embodiment of the present invention, and Fig. 3 is an automatic control system block diagram showing how the proportional control valve of the present invention is used. Diagram 0 2.4...Electromagnetic drive unit, 6...Diaphragm, 6...Valve body, 9a...-Next pressure chamber, 10 a...Secondary pressure chamber, 11...
Pressure-electric conversion section. Name of agent: Patent attorney Toshio Nakao and one other person II
figure
Claims (3)
を設け、前記弁体の上流側に一次圧室、弁体の下流側に
二次王室を有し、前記弁体と一体となって作動するダイ
ヤフラムと、前記弁体を開くべく作動する電磁駆動部を
有し、前記二次圧変化と連動して作動する圧力電気変換
部を備えた比例制御弁。(1) A valve body that can vary the cross-sectional area of the flow passage is provided in the fluid flow passage, and has a primary pressure chamber on the upstream side of the valve body and a secondary pressure chamber on the downstream side of the valve body, and A proportional control valve comprising a diaphragm that operates in unison, an electromagnetic drive unit that operates to open the valve body, and a pressure-electric conversion unit that operates in conjunction with the change in the secondary pressure.
する第二のダイヤフラムを二次王室に設け、前記変位を
電気信号に変換すべく前記ダイヤフラムと連動して作動
する変位電気変換部を備えた特許請求の範囲第１項記載
の比例制御弁。(2) As a pressure-electric converter, a second diaphragm that converts secondary pressure changes into displacement is provided in the secondary chamber, and a displacement-electric converter operates in conjunction with the diaphragm to convert the displacement into an electric signal. A proportional control valve according to claim 1, comprising:
用いた特許請求の範囲第２項記載の比例制御弁。(3) The proportional control valve according to claim 2, which uses an actuating transformer type converter as the displacement electric converter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16684981A JPS5868568A (en) | 1981-10-19 | 1981-10-19 | Proportional control valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16684981A JPS5868568A (en) | 1981-10-19 | 1981-10-19 | Proportional control valve |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5868568A true JPS5868568A (en) | 1983-04-23 |
| JPS634074B2 JPS634074B2 (en) | 1988-01-27 |
Family
ID=15838784
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP16684981A Granted JPS5868568A (en) | 1981-10-19 | 1981-10-19 | Proportional control valve |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5868568A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0320775U (en) * | 1989-07-11 | 1991-02-28 | ||
| CN113958743A (en) * | 2021-10-24 | 2022-01-21 | 浙江大学 | Gas proportion regulating valve insensitive to inlet pressure |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0235177U (en) * | 1988-08-30 | 1990-03-07 |
-
1981
- 1981-10-19 JP JP16684981A patent/JPS5868568A/en active Granted
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0320775U (en) * | 1989-07-11 | 1991-02-28 | ||
| CN113958743A (en) * | 2021-10-24 | 2022-01-21 | 浙江大学 | Gas proportion regulating valve insensitive to inlet pressure |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS634074B2 (en) | 1988-01-27 |
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