JPS5941376Y2 - proportional control valve - Google Patents
proportional control valveInfo
- Publication number
- JPS5941376Y2 JPS5941376Y2 JP6589279U JP6589279U JPS5941376Y2 JP S5941376 Y2 JPS5941376 Y2 JP S5941376Y2 JP 6589279 U JP6589279 U JP 6589279U JP 6589279 U JP6589279 U JP 6589279U JP S5941376 Y2 JPS5941376 Y2 JP S5941376Y2
- Authority
- JP
- Japan
- Prior art keywords
- gas
- electromagnet
- control valve
- proportional control
- magnetic body
- 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
- Magnetically Actuated Valves (AREA)
- Regulation And Control Of Combustion (AREA)
- Feeding And Controlling Fuel (AREA)
Description
【考案の詳細な説明】
本考案は制御回路を備えた比例制御弁に関するものであ
る。[Detailed Description of the Invention] The present invention relates to a proportional control valve equipped with a control circuit.
第1図は比例制御弁の断面図である。FIG. 1 is a sectional view of the proportional control valve.
この比例制御弁の原理は次のようである。The principle of this proportional control valve is as follows.
図において、1は制御弁本体で、通流路の入口と出口と
の間に弁体2が設けられ、この弁体2に弾性部材すなわ
ち実施例ではダイヤフラム3と磁性体4とが取付はテア
ル。In the figure, 1 is a control valve main body, and a valve body 2 is provided between the inlet and the outlet of the flow passage, and an elastic member, that is, a diaphragm 3 and a magnetic body 4 in the embodiment are attached to the valve body 2. .
この磁性体4は例えば永久磁石を用いである。This magnetic body 4 is made of, for example, a permanent magnet.
上記磁性体4にはこれに対向して電磁石5を設け、その
鉄心6は磁性体4に一定の間隔を隔てて相同するように
配置しである。An electromagnet 5 is provided opposite to the magnetic body 4, and its iron core 6 is arranged to be similar to the magnetic body 4 at a constant interval.
そしてこの電磁石5にはその鉄心6に上記磁性体4と同
じ極性が励磁するように通電する。The electromagnet 5 is energized so that its iron core 6 is excited with the same polarity as the magnetic body 4.
これにより電磁石5に流れる電流の強さに応じて磁性体
4と鉄心6との間に反発力が生じ、あるいは電流の小さ
い時若しくは電流を遮断した時に磁性体4と鉄心6との
間に吸引力が生じ、いわゆる弁体2がガイド7に沿って
上下に作動し、弁座8との間の流通路の開度を可変し、
したがって流通路を通る流体の流量を比例的に制御する
ことができる。As a result, a repulsive force is generated between the magnetic body 4 and the iron core 6 depending on the strength of the current flowing through the electromagnet 5, or an attraction force is generated between the magnetic body 4 and the iron core 6 when the current is small or when the current is interrupted. A force is generated, and the so-called valve body 2 moves up and down along the guide 7, varying the opening degree of the flow path between it and the valve seat 8.
Therefore, the flow rate of fluid passing through the flow path can be controlled proportionally.
上記に示した比例制御弁を例えば燃料ガスを流量調整す
る場合について考えてみると、ガスの種類は都市ガス、
天然ガス、LPガスの各種あり、これらガスは、同一の
燃焼入力を得るためには各各の流量と圧力が異なってい
る。If we consider the case where the proportional control valve shown above is used to adjust the flow rate of fuel gas, for example, the type of gas is city gas,
There are various types of natural gas and LP gas, and these gases require different flow rates and pressures in order to obtain the same combustion input.
例えば都市ガスでは流入圧力(以下−電圧P1 という
)が最大で100 mmH20%調節後の圧力(以下二
次圧P2という)が最大で60mmH2Oとする。For example, for city gas, the inflow pressure (hereinafter referred to as voltage P1) is at most 100 mmH, and the pressure after 20% adjustment (hereinafter referred to as secondary pressure P2) is at most 60 mmH2O.
また天然ガスではPoは200mmH2O5p2は12
0mmH2O1LPガスではPlは280mmHzO,
P2は200mmH2Oというように各ガス種様々であ
る。Also, in natural gas, Po is 200mmH2O5p2 is 12
In 0mmH2O1LP gas, Pl is 280mmHzO,
P2 varies depending on the gas type, such as 200 mmH2O.
これら各ガスを同一の比例制御弁で調整しようとした場
合、電磁石の巻線は同一のものとしたなら各ガス種によ
り必要なアンペアターンの最大値は、例えば都市ガスは
380AT、天然ガスは450AT%LPガスは640
ATとなる。If you try to adjust each of these gases with the same proportional control valve, and the electromagnet winding is the same, the maximum ampere-turn required for each gas type is, for example, 380 AT for city gas and 450 AT for natural gas. %LP gas is 640
It becomes AT.
これにより各ガス種に応じて最大印加電圧を調整する必
要がある。As a result, it is necessary to adjust the maximum applied voltage according to each gas type.
また、制御した場合の最低値のアンペアターンも各ガス
種によりまちまちとなり、各ガス種毎に最大、最低の電
圧を設定することが必要となる。Further, the lowest value of ampere turns when controlled also varies depending on the gas type, and it is necessary to set the maximum and minimum voltages for each gas type.
したがって上記三つのガス種で使用する場合には、合計
6点の設定が必要となり、これは回路設計上に非常に大
きな手間とコスト高となる。Therefore, when using the above three gas types, a total of six settings are required, which requires a great deal of effort and cost in terms of circuit design.
本考案は上記のようなものの欠点を改善しようとするも
ので、電磁石に印加する最大電圧が全ガス種を通じて同
一となる制御回路を備えることにより、電圧設定のポイ
ントを大幅に減少させることのできる比例制御弁を提供
することを目的としている。The present invention attempts to improve the drawbacks of the above-mentioned devices, and by providing a control circuit that makes the maximum voltage applied to the electromagnet the same for all gas types, it is possible to significantly reduce the points of voltage setting. The purpose is to provide a proportional control valve.
以下、本考案に係る制御回路を第2図について説明する
。Hereinafter, the control circuit according to the present invention will be explained with reference to FIG.
図において、Ram R1* R2は抵抗を表わし、R
(、は電磁石50巻線抵抗、R□tR2はRoに直列に
接続した抵抗である。In the figure, Ram R1*R2 represents the resistance and R
(, is the electromagnet 50 winding resistance, and R□tR2 is the resistance connected in series with Ro.
今、LPガスの必要最大アンペアターンを得るために回
路に印加する電圧をVmaxとする。Now, let Vmax be the voltage applied to the circuit to obtain the required maximum ampere turn of LP gas.
すると、LPガスではAから8間にVmaxを印加すれ
ばよい。Then, in the case of LP gas, Vmax may be applied between A and 8.
次に天然ガスの必要最大アンペアターンを得るための電
流値をANとした場合、抵抗R1をVmax二AN(R
c+R1)の関係を満足するように定める。Next, if the current value to obtain the required maximum ampere-turn of natural gas is AN, then resistor R1 is set to Vmax2AN(R
c+R1) is determined to satisfy the relationship.
同様に都市ガスの必要最大アンペアターンを得るための
電流値をA。Similarly, the current value to obtain the required maximum ampere-turn of city gas is A.
とじた場合、抵抗R2をVmax=Ac(Rc+R1+
R2)の関係を満足するように定める。When the resistor R2 is closed, Vmax=Ac(Rc+R1+
R2) is determined so as to satisfy the relationship R2).
これにより、上記各ガス種に対する必要最大電圧はVm
axだゆでよいことになり、いわゆる最大電圧を各ガス
種により調整する必要はなく、制御する最低側の電圧の
みを設定すればよいことが理解される。As a result, the required maximum voltage for each of the above gas types is Vm
It is understood that the so-called maximum voltage does not need to be adjusted for each gas type, and only the lowest voltage to be controlled needs to be set.
第3図には各ガス種の制御特性の一例が示しである。FIG. 3 shows an example of the control characteristics of each gas type.
ここで最大ガス入力をQl、最低ガス入力をQ2として
各ガス種を同一にしである。Here, the maximum gas input is Ql, the minimum gas input is Q2, and each gas type is the same.
また、最大入力はVmaxで得られ、これは全ガス種間
−である。Also, the maximum input is obtained at Vmax, which is - between all gas species.
vcは都市ガスの最低入力時の電圧、vN。Vl、はそ
れぞれ天然ガス、LPガスの最低入力時の電圧であり、
回路で設定するのはVmax 、 Vc。VC is the lowest input voltage of city gas, vN. Vl is the voltage at the lowest input of natural gas and LP gas, respectively,
Vmax and Vc are set by the circuit.
vN、vLOみどなる。vN, vLO Midonaru.
なお、各ガス種で特性曲線の上りと下りで差があるのは
電磁石の磁気回路に生じるヒステリシス損である。Note that the difference between the upward and downward slopes of the characteristic curve for each gas type is the hysteresis loss that occurs in the magnetic circuit of the electromagnet.
以上のように本考案によれば、比例制御弁の電磁石にガ
ス種に応じて直列抵抗からなる制御回路を備えて最大電
圧が全ガス種を通じて同一になるように調整することに
より、電圧設定のポイントを大幅に減少させることがで
きる。As described above, according to the present invention, the electromagnet of the proportional control valve is equipped with a control circuit consisting of a series resistor according to the gas type, and the voltage setting is adjusted so that the maximum voltage is the same for all gas types. Points can be significantly reduced.
これにより回路設計が著しく簡単となり、コストが安価
になる利点を有し、また、比例制御弁の使い勝手を大幅
に改善できる効果がある。This has the advantage of significantly simplifying the circuit design and reducing costs, and also has the effect of greatly improving the usability of the proportional control valve.
第1図は比例制御弁の断面図、第2図は制御回路図、第
3図は制御回路による制御特性曲線図である。
2・・・・・・弁体、4・・・・・・磁性体、5・・・
・・・電磁石、6・・・・・・鉄心、Ro・・・・・・
電磁石の巻線抵抗、R,、R2・・・・・・抵抗。FIG. 1 is a sectional view of the proportional control valve, FIG. 2 is a control circuit diagram, and FIG. 3 is a control characteristic curve diagram of the control circuit. 2... Valve body, 4... Magnetic body, 5...
...Electromagnet, 6...Iron core, Ro...
Electromagnet winding resistance, R,, R2...Resistance.
Claims (1)
の弁体に保持された磁性体と、磁性体に対向配置され上
記磁性体を吸引または反発し得る電磁石と、上記弁体に
保持され電磁石の吸引、反発に対し反力を与える弾性部
材とを備えた比例制御弁において、上記電磁石に制御す
る対象のガス種に応じて直列抵抗からなる制御回路を設
け、この回路に印加する最大電圧が全ガス種を通じて同
一になるように調整することを特徴とする比例制御弁。A valve body provided in a fluid flow path and configured to vary the flow path, a magnetic body held by the valve body, an electromagnet placed opposite to the magnetic body and capable of attracting or repelling the magnetic body, and the valve. In a proportional control valve equipped with an elastic member that is held in the body and provides a reaction force to the attraction and repulsion of an electromagnet, a control circuit consisting of a series resistor is provided to the electromagnet according to the type of gas to be controlled, and this circuit is connected to the electromagnet. A proportional control valve characterized by adjusting the maximum voltage applied so that it is the same for all gas types.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP6589279U JPS5941376Y2 (en) | 1979-05-17 | 1979-05-17 | proportional control valve |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP6589279U JPS5941376Y2 (en) | 1979-05-17 | 1979-05-17 | proportional control valve |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS55167058U JPS55167058U (en) | 1980-12-01 |
JPS5941376Y2 true JPS5941376Y2 (en) | 1984-11-29 |
Family
ID=29299879
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP6589279U Expired JPS5941376Y2 (en) | 1979-05-17 | 1979-05-17 | proportional control valve |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5941376Y2 (en) |
-
1979
- 1979-05-17 JP JP6589279U patent/JPS5941376Y2/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
JPS55167058U (en) | 1980-12-01 |
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