JPH102446A - Proportional control valve device - Google Patents
Proportional control valve deviceInfo
- Publication number
- JPH102446A JPH102446A JP15800996A JP15800996A JPH102446A JP H102446 A JPH102446 A JP H102446A JP 15800996 A JP15800996 A JP 15800996A JP 15800996 A JP15800996 A JP 15800996A JP H102446 A JPH102446 A JP H102446A
- Authority
- JP
- Japan
- Prior art keywords
- temperature
- valve
- valve body
- gas
- proportional 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
Landscapes
- Feedback Control In General (AREA)
- Flow Control (AREA)
- Fluid-Driven Valves (AREA)
- Magnetically Actuated Valves (AREA)
Abstract
(57)【要約】
【課題】 比例弁に用いられているゴム製ダイヤフラム
の温度特性に応じて温度補償を行うことにより、燃焼装
置に用いられる比例弁の周囲の温度が変化しても二次側
のガス圧が変化しない比例制御弁装置を提供することを
目的とする。
【解決手段】 燃焼装置の温度設定手段１９により設定
温度が設定されると、比例弁電流算出部２０によって室
温検出手段２１で検出される室温が設定温度になるよう
に比例弁電流を算出する。一方、サーミスタからの信号
により温度検出手段２２によって弁本体のゴム製ダイヤ
フラム近傍の温度を検出し、補正値決定部２３によって
ゴム製ダイヤフラムの特性に応じた補正値を決定する。
そして、比例弁電流決定手段２４によって、それぞれ算
出された比例弁電流と決定された補正値とから比例弁に
印加する電流を決定し、比例弁の温度補償を行ってい
る。
PROBLEM TO BE SOLVED: To perform secondary compensation even when the temperature around a proportional valve used in a combustion device changes by performing temperature compensation according to the temperature characteristics of a rubber diaphragm used in a proportional valve. It is an object to provide a proportional control valve device in which the gas pressure on the side does not change. SOLUTION: When a set temperature is set by a temperature setting means 19 of the combustion device, a proportional valve current is calculated by a proportional valve current calculation unit 20 so that the room temperature detected by the room temperature detecting means 21 becomes the set temperature. On the other hand, the temperature in the vicinity of the rubber diaphragm of the valve body is detected by the temperature detecting means 22 based on a signal from the thermistor, and the correction value determining section 23 determines a correction value according to the characteristics of the rubber diaphragm.
The proportional valve current determining means 24 determines the current to be applied to the proportional valve from the calculated proportional valve current and the determined correction value, and performs temperature compensation of the proportional valve.
Description
【０００１】[0001]
【発明の属する技術の分野】本発明は、暖房器等の燃焼
装置に供給するガス等の気体の流量を制御する比例制御
弁装置に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a proportional control valve device for controlling a flow rate of a gas such as a gas supplied to a combustion device such as a heater.
【０００２】[0002]
【従来の技術】ガス燃焼装置においては、従来から一般
的にその出力（発生熱量）を調整する手段として、ガス
を供給する際に必要とされるガス流量に応じて弁の開度
を連続的に変えることができる比例制御弁装置が用いら
れている。前記比例制御弁装置は、弁本体のガス流入口
と前記燃焼装置に接続されるガス流出口とを連通するガ
ス通路に設けられた弁座に着座する弁体を、電機子が連
設されたロッドにより吊設し、弁本体に設けられた電磁
コイルに与える通電量を変化させることにより前記電機
子を移動させ、前記弁体の開度を連続的に変えるように
なっている。前記燃焼装置では、出力を増加させようと
するときには、前記比例弁の電磁コイルへの通電量を増
加することにより前記電機子を移動させて前記弁体の開
度を拡大し、ガス流入量を増加させる。2. Description of the Related Art Conventionally, in a gas combustion apparatus, as a means for adjusting the output (the amount of generated heat), the opening degree of a valve is continuously adjusted in accordance with a gas flow rate required when supplying gas. Is used. In the proportional control valve device, an armature is provided with a valve element seated on a valve seat provided in a gas passage communicating between a gas inlet of a valve body and a gas outlet connected to the combustion device. The armature is moved by changing the amount of current supplied to an electromagnetic coil provided on the valve body, suspended by a rod, and the opening of the valve body is continuously changed. In the combustion device, when the output is to be increased, the armature is moved by increasing the amount of electricity supplied to the electromagnetic coil of the proportional valve to increase the opening degree of the valve body, thereby reducing the gas inflow amount. increase.
【０００３】ところが、前記電磁コイルによる前記電機
子の移動で弁体の開度を決めているだけでは、一次側の
ガス圧が変動すると二次側のガス圧も変動してガスの供
給量が不安定になる。そこで、従来の比例制御弁装置で
は、ガス流入口側に一次側のガス圧に応動すると共に弁
体に連係する感圧応動体により前記弁体の開度を自動的
に調整し、一次側のガス圧が変動しても二次側のガス圧
が変動しないようにしている。この感圧応動体として
は、家庭用プロパンガス、都市ガス等では、通常ゴム製
ダイヤフラムが使用されている。However, if the opening degree of the valve body is determined only by the movement of the armature by the electromagnetic coil, when the gas pressure on the primary side fluctuates, the gas pressure on the secondary side also fluctuates, and the gas supply amount increases. Becomes unstable. Therefore, in the conventional proportional control valve device, the opening degree of the valve body is automatically adjusted by the pressure-sensitive responsive element linked to the valve element while responding to the gas pressure on the primary side at the gas inlet side, and Even if the gas pressure fluctuates, the gas pressure on the secondary side does not fluctuate. As the pressure-sensitive responsive element, a rubber diaphragm is usually used for household propane gas, city gas and the like.
【０００４】一方、このような比例制御弁装置において
は、周囲の温度の変化によって比例弁の温度が変化する
と二次側のガス圧が変動してしまい、前記燃焼装置では
出力が不安定になるという不都合がある。On the other hand, in such a proportional control valve device, when the temperature of the proportional valve changes due to a change in ambient temperature, the gas pressure on the secondary side fluctuates, and the output of the combustion device becomes unstable. There is an inconvenience.
【０００５】本願発明者は、このような比例制御弁装置
について試験を行った結果、ゴム製ダイヤフラムの温度
変化による特性の変動が、二次側のガス圧の変動に大き
く影響していることを知見した。The inventors of the present application have conducted tests on such a proportional control valve device, and have found that a change in the characteristics of the rubber diaphragm due to a temperature change has a large effect on a change in the gas pressure on the secondary side. I learned.
【０００６】[0006]
【発明が解決しようとする課題】本発明は、比例制御弁
装置の改良を目的とし、さらに詳しくは、ダイヤフラム
の温度が変化しても二次側のガス圧が変化しない比例制
御弁装置を提供することを目的とする。SUMMARY OF THE INVENTION The present invention aims to improve a proportional control valve device, and more specifically, to provide a proportional control valve device in which the gas pressure on the secondary side does not change even when the temperature of the diaphragm changes. The purpose is to do.
【０００７】[0007]
【課題を解決するための手段】かかる目的を達成するた
めに、本発明の比例制御弁装置は、弁本体に設けられた
ガス流出口とガス流入口とを連通するガス通路に弁座を
設け、該弁座に着座する弁体をロッドにより吊設し、該
ロッドに連設した電機子を弁本体に設けた電磁コイルに
より移動して前記弁体を電磁コイルへの通電量に比例し
て開度変化させると共に、前記弁体のガス圧に応動する
ゴム製ダイヤフラムを前記弁体に連係させて設けた比例
制御弁装置において、前記ゴム製ダイヤフラムの温度を
検出する温度センサを設け、該温度センサの検出温度に
応じて前記電磁コイルに印加する電流を補正する補正手
段を設けたことを特徴とする。In order to achieve the above object, a proportional control valve device according to the present invention is provided with a valve seat in a gas passage communicating a gas outlet and a gas inlet provided in a valve body. The valve element seated on the valve seat is suspended by a rod, and the armature connected to the rod is moved by an electromagnetic coil provided on the valve body to move the valve element in proportion to the amount of electricity supplied to the electromagnetic coil. In a proportional control valve device provided with a rubber diaphragm responsive to the gas pressure of the valve body and linked to the valve body while changing the opening degree, a temperature sensor for detecting the temperature of the rubber diaphragm is provided. Correction means for correcting a current applied to the electromagnetic coil according to a temperature detected by a sensor is provided.
【０００８】これによれば、二次側のガス圧に大きな影
響を与えるゴム製ダイヤフラムの近傍の温度を検出し
て、当該検出温度により前記ゴム製ダイヤフラムの温度
特性に応じて比例制御弁装置の温度補償を行うので、比
例弁本体の温度変化によりダイヤフラムの温度が変化し
ても二次側のガス圧はほとんど変化しない。従って、本
発明の比例制御弁装置を燃焼装置に用いたときは、略一
定のガスが安定して燃焼装置に供給されるので、気温の
変化又はバーナ等の加熱源の温度変化に左右されること
のない安定した出力を得ることができる。According to this, the temperature near the rubber diaphragm which greatly affects the gas pressure on the secondary side is detected, and the detected temperature is used to control the proportional control valve device in accordance with the temperature characteristics of the rubber diaphragm. Since temperature compensation is performed, the gas pressure on the secondary side hardly changes even if the temperature of the diaphragm changes due to a change in the temperature of the proportional valve body. Therefore, when the proportional control valve device of the present invention is used in a combustion device, a substantially constant gas is stably supplied to the combustion device, so that it is affected by a change in air temperature or a temperature change in a heating source such as a burner. It is possible to obtain a stable output without any problem.
【０００９】また、前記補正手段は、前記電磁コイルに
印加する電流の補正を、前記検出温度が所定温度未満で
あるときは該検出温度に応じた補正を行い、前記検出温
度が所定温度以上であるときは一定の補正値により補正
を行う。これは、前記ダイヤフラムの特性は温度によっ
て影響を受けるが、温度が所定温度以上になればそれ以
上特性が変化せず安定するからである。The correction means corrects the current applied to the electromagnetic coil and, if the detected temperature is lower than a predetermined temperature, performs correction in accordance with the detected temperature. In some cases, correction is performed using a fixed correction value. This is because the characteristics of the diaphragm are affected by the temperature, but when the temperature exceeds a predetermined temperature, the characteristics do not change any more and become stable.
【００１０】従って、本発明の比例制御弁装置によれ
ば、このようなゴム製ダイヤフラムの温度特性を考慮し
て、温度センサの検出温度が所定温度未満のときは該検
出温度に応じた補正を行い、検出温度が所定温度以上の
ときは一定値での補正を行うことにより、ゴム製ダイヤ
フラムの温度特性に応じた温度補償を行うことができ
る。Therefore, according to the proportional control valve device of the present invention, when the detected temperature of the temperature sensor is lower than the predetermined temperature, the correction according to the detected temperature is performed in consideration of the temperature characteristics of the rubber diaphragm. When the detected temperature is equal to or higher than the predetermined temperature, by performing correction with a constant value, it is possible to perform temperature compensation according to the temperature characteristics of the rubber diaphragm.
【００１１】[0011]
【発明の実施の形態】本発明の実施形態の一例を図面に
基づいて説明する。図１は本発明の比例制御弁装置の一
例を示す説明的断面図、図２はゴム製ダイヤフラムの温
度特性を示すグラフ、図３は比例制御弁装置の温度補正
の一例を示す説明図、図４は温度と補正値の関係を示す
グラフである。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described with reference to the drawings. 1 is an explanatory sectional view showing an example of the proportional control valve device of the present invention, FIG. 2 is a graph showing temperature characteristics of a rubber diaphragm, and FIG. 3 is an explanatory diagram showing an example of temperature correction of the proportional control valve device. 4 is a graph showing the relationship between the temperature and the correction value.
【００１２】本実施形態の比例制御弁装置は、暖房器の
燃焼装置に用いられるものであり、図１に示すように、
弁本体１が、出力を任意に変更できる図示しない燃焼装
置にガスを供給するガス通路２に設けられており、弁本
体１の一次側には、ガス通路２の開閉を行う電磁弁３，
４が設けられている。本実施形態において燃焼装置に供
給されるガスは、図１における矢印で示すように、電磁
弁３に設けられたガス流入口５から電磁弁３，４の内部
を通過して弁本体１に流入し、この弁本体１でガス圧の
調節及びガス量の調節が行われ、燃焼装置に送られる。The proportional control valve device of the present embodiment is used for a combustion device of a heater, and as shown in FIG.
A valve body 1 is provided in a gas passage 2 for supplying gas to a combustion device (not shown) capable of arbitrarily changing the output. A solenoid valve 3 for opening and closing the gas passage 2 is provided on the primary side of the valve body 1.
4 are provided. In the present embodiment, the gas supplied to the combustion device flows through the inside of the solenoid valves 3 and 4 from the gas inlet 5 provided in the solenoid valve 3 and flows into the valve body 1 as shown by an arrow in FIG. Then, the gas pressure and the gas amount are adjusted by the valve body 1 and sent to the combustion device.
【００１３】弁本体１は、図示しないガスの供給源から
ガスが供給される一次室６と、燃焼装置の運転状況に応
じてに必要なガス量を供給するよう調節する二次室７
と、弁体８の開度を調節するためのフェライト磁石９
ａ、電磁コイル９ｂや電機子１０を収納する収納部１１
とから形成される。また、一次室６にはガス流入口１２
が設けられており、二次室７にはガス流出口１３が設け
られている。尚、収納部１１は樹脂で形成され、収納部
以外の弁本体１はアルミで形成されている。The valve body 1 has a primary chamber 6 to which gas is supplied from a gas supply source (not shown), and a secondary chamber 7 for adjusting the supply of a necessary gas according to the operating condition of the combustion apparatus.
And a ferrite magnet 9 for adjusting the opening of the valve body 8.
a, a storage unit 11 for storing the electromagnetic coil 9b and the armature 10
And formed from The primary chamber 6 has a gas inlet 12.
The secondary chamber 7 is provided with a gas outlet 13. The housing 11 is made of resin, and the valve body 1 other than the housing is made of aluminum.
【００１４】一次室６と収納部１１との境界には、ゴム
製のダイヤフラム１４が設けられており、その外周は一
次室６と収納部１１との接合部で挟持され、その中心部
は弁体８と連結しているロッド１５に連結されている。
このダイヤフラム１４によって、一次室６と収納部１１
とが遮断されている。A rubber diaphragm 14 is provided at the boundary between the primary chamber 6 and the storage section 11, and its outer periphery is sandwiched by a joint between the primary chamber 6 and the storage section 11, and the center thereof is a valve. It is connected to a rod 15 which is connected to the body 8.
The primary chamber 6 and the storage section 11 are
Is shut off.
【００１５】一次室６と二次室７との境界には、弁本体
１に形成された弁座１６に着座する弁体８が設けられて
いる。弁体８はロッド１５により吊設されており、二次
室７側に設けられたスプリング１７により弁を閉じる方
向に付勢されている。At the boundary between the primary chamber 6 and the secondary chamber 7, a valve body 8 is provided which is seated on a valve seat 16 formed in the valve body 1. The valve body 8 is suspended by a rod 15 and is urged by a spring 17 provided on the secondary chamber 7 side in a direction to close the valve.
【００１６】収納部１１には、電磁コイル９ｂと、この
電磁コイル９ｂに印加される電流によって移動自在に設
けられた電機子１０とが収納されている。また、電機子
１０の先端部はロッド１５の頭部に当接している。この
収納部１１は開口部１１ａにより大気解放されており、
その気圧は大気圧となっている。The housing 11 houses an electromagnetic coil 9b and an armature 10 movably provided by a current applied to the electromagnetic coil 9b. The tip of the armature 10 is in contact with the head of the rod 15. This storage section 11 is opened to the atmosphere by an opening 11a,
Its pressure is atmospheric pressure.
【００１７】また、ダイヤフラム１４の近傍の弁本体１
外面にはサーミスタ１８が取付ネジにより螺着されてい
る。本実施形態では、このサーミスタ１８によってダイ
ヤフラム１４の近傍の温度を検知している。Also, the valve body 1 near the diaphragm 14
A thermistor 18 is screwed to the outer surface with a mounting screw. In the present embodiment, the temperature near the diaphragm 14 is detected by the thermistor 18.
【００１８】次に、本実施形態における比例制御弁装置
の作動について説明する。まず、燃焼装置が作動してい
ないときには、電磁弁３，４及び電磁コイル９ｂには電
流は印加されていないので、電磁弁３，４は閉じてお
り、弁体８もスプリング１７により弁座１６に付勢され
て閉じた状態となっている。Next, the operation of the proportional control valve device according to this embodiment will be described. First, when the combustion device is not operating, no current is applied to the solenoid valves 3 and 4 and the solenoid coil 9b, so the solenoid valves 3 and 4 are closed, and the valve body 8 is also And is closed.
【００１９】燃焼装置を作動させたときは、電磁弁３，
４に電流が印加されて電磁弁３，４が開き、ガスがガス
通路２を通ってガス流入口１２から弁本体１の一次室６
に流入する。このとき、電磁コイル９ｂには燃焼装置で
設定された出力に応じた電流と、ダイヤフラム１４近傍
の温度により決定された補正電流とが印加される。電磁
コイル９ｂが印加される電流に応じた力で電機子１０を
図１において下方に移動させると、電機子１０の先端部
によってロッド１５が下方に押される。このロッド１５
には弁体８が連結されているので、弁体８が下方に移動
して弁座１６から離れ、弁体８と弁座１６との間に隙間
が生じる。このとき、電機子１０が電磁コイルにより押
される力と、スプリング１７の張力とダイヤフラム１４
の受圧力との合力とがつり合う点で弁体８の開度が保持
される。従って、一次室６に流入したガスが弁体８と弁
座１６との隙間を通って二次室７に流入し、ガス流出口
１３から燃焼装置にガスが送られる。When the combustion device is operated, the solenoid valve 3
4, the solenoid valves 3 and 4 are opened, and gas flows through the gas passage 2 from the gas inlet 12 to the primary chamber 6 of the valve body 1.
Flows into. At this time, a current corresponding to the output set by the combustion device and a correction current determined by the temperature near the diaphragm 14 are applied to the electromagnetic coil 9b. When the armature 10 is moved downward in FIG. 1 by a force corresponding to the current applied to the electromagnetic coil 9b, the rod 15 is pushed downward by the tip of the armature 10. This rod 15
Since the valve body 8 is connected to the valve body 8, the valve body 8 moves downward and separates from the valve seat 16, and a gap is generated between the valve body 8 and the valve seat 16. At this time, the force of pressing the armature 10 by the electromagnetic coil, the tension of the spring 17 and the diaphragm 14
The opening of the valve body 8 is maintained at a point where the resultant force with the receiving pressure of the valve body 8 is balanced. Therefore, the gas that has flowed into the primary chamber 6 flows into the secondary chamber 7 through the gap between the valve body 8 and the valve seat 16, and is sent from the gas outlet 13 to the combustion device.
【００２０】このように、燃焼装置により設定された出
力で燃焼が行われているときに、一次側のガス圧が何ら
かの原因で高くなったときは、一次室６の内部圧力も上
昇する。すると、ダイヤフラム１４に加わる圧力も高く
なるため、ダイヤフラム１４は図１において上方に押さ
れることになる。このダイヤフラム１４の中心部にはロ
ッド１５が連結されているため、ロッド１５もガス圧が
高くなった分だけ上方に引き上げられ、ロッド１５に連
結されている弁体８も引き上げられる。従って、弁体８
と弁座１６との隙間すなわち弁体８の開度が小さくな
り、一次側のガス圧が高くなってもその分二次側に流入
するガスの量が減少するので、二次側のガス圧は一定に
保たれる。逆に一次側の圧力が低くなったときには、ダ
イヤフラム１４が下方に押されて弁の開度が大きくなる
ので、二次側のガス圧は一定に保たれる。As described above, when the primary side gas pressure increases for some reason while the combustion is being performed with the output set by the combustion device, the internal pressure of the primary chamber 6 also increases. Then, since the pressure applied to the diaphragm 14 also increases, the diaphragm 14 is pushed upward in FIG. Since the rod 15 is connected to the center of the diaphragm 14, the rod 15 is also lifted upward by an amount corresponding to the increased gas pressure, and the valve body 8 connected to the rod 15 is also lifted. Therefore, the valve element 8
When the gas pressure on the primary side increases, the amount of gas flowing into the secondary side decreases accordingly, so that the gas pressure on the secondary side decreases. Is kept constant. Conversely, when the pressure on the primary side decreases, the diaphragm 14 is pushed downward and the opening of the valve increases, so that the gas pressure on the secondary side is kept constant.
【００２１】次に、ダイヤフラム１４の温度が変化した
ときの制御について説明する。図２はゴム製ダイヤフラ
ム１４の温度特性を示すグラフであり、温度補正をしな
い場合に弁本体１のダイヤフラム１４近傍の温度の変化
によって変化する二次側のガス圧を示している。本実施
形態のダイヤフラム１４では、温度が６℃から約３６℃
までは温度が上がると二次側のガス圧が減少するが、約
３６℃を越えるとほとんど変化しなくなる。Next, control when the temperature of the diaphragm 14 changes will be described. FIG. 2 is a graph showing the temperature characteristics of the rubber diaphragm 14, and shows the gas pressure on the secondary side that changes due to a change in the temperature near the diaphragm 14 of the valve body 1 when the temperature is not corrected. In the diaphragm 14 of the present embodiment, the temperature is from 6 ° C. to about 36 ° C.
Until the temperature rises, the gas pressure on the secondary side decreases, but when it exceeds about 36 ° C., it hardly changes.
【００２２】本実施形態においては、図３に示すよう
に、燃焼装置の温度設定手段１９により暖房器の設定温
度が設定されると、比例弁電流算出部２０によって室温
検出手段２１で検出される室温が設定温度になるように
比例弁電流を算出する。一方、サーミスタ１８からの信
号により温度検出手段２２によって弁本体１のダイヤフ
ラム１４近傍の温度を検出し、補正値決定部２３によっ
てダイヤフラム１４の特性に応じた補正値を決定する。
そして、比例弁電流決定手段２４によって、それぞれ算
出された比例弁電流と決定された補正値とから比例弁に
印加する電流を決定し、比例制御弁装置の温度補償を行
っている。In this embodiment, as shown in FIG. 3, when the set temperature of the heater is set by the temperature setting means 19 of the combustion apparatus, the proportional valve current calculation unit 20 detects the temperature by the room temperature detection means 21. The proportional valve current is calculated so that the room temperature becomes the set temperature. On the other hand, a temperature near the diaphragm 14 of the valve body 1 is detected by the temperature detecting means 22 based on a signal from the thermistor 18, and a correction value according to the characteristics of the diaphragm 14 is determined by the correction value determination unit 23.
The proportional valve current determining means 24 determines the current to be applied to the proportional valve from the calculated proportional valve current and the determined correction value, and performs temperature compensation of the proportional control valve device.
【００２３】次に、補正値の決定について図４を参照し
てさらに詳細に説明する。図４は、ダイヤフラム１４の
温度特性に対応した電流の補正値を示すグラフである。
本実施形態においては、図４において標準温度Ｔn にお
ける補正値Ｈn を０としており、標準温度Ｔn を２０℃
としている。また、補正値決定部２３では、この温度検
出手段２２で検知した温度Ｔs における補正値Ｈs を補
正値としている。この補正値Ｈs は、温度がＴmin から
Ｔmax までの間はダイヤフラム１４の特性の変化に応じ
て温度Ｔs に比例した値となる。また、温度がＴmax を
越えるときはダイヤフラム１４の特性はほとんど変化し
ないので、温度Ｔs が一定温度Ｔmax を越えれば補正値
は一定の値Ｈmax となる。Next, the determination of the correction value will be described in more detail with reference to FIG. FIG. 4 is a graph showing a current correction value corresponding to the temperature characteristic of the diaphragm 14.
In the present embodiment, in FIG. 4 has a zero correction value H n in standard temperature T n, 20 ° C. The standard temperature T n
And Further, the correction value determination section 23, and the correction value the correction value H s at the temperature T s detected by the temperature detecting means 22. The correction value H s is between the temperature T min to T max is a value proportional to the temperature T s in accordance with a change in the characteristics of the diaphragm 14. Further, since the characteristics of the diaphragm 14 hardly changes when the temperature exceeds T max, the correction value when the temperature T s is exceeds the predetermined temperature T max is a constant value H max.
【００２４】比例弁電流決定部２４では、比例弁電流算
出部２０により算出された電流値と、補正値決定部２３
により決定された補正値Ｈs とを演算して比例弁電流を
決定する。この比例弁電流決定部２４で決定された電流
が比例弁の電磁コイル９ｂに印加される。In the proportional valve current determining section 24, the current value calculated by the proportional valve current calculating section 20 and the correction value determining section 23
Determining the proportional valve current calculating the correction value H s determined by. The current determined by the proportional valve current determining unit 24 is applied to the electromagnetic coil 9b of the proportional valve.
【００２５】上記実施形態では、ダイヤフラム１４を比
例制御弁装置の一次側に設けたものを示したが、これに
限らず二次側に設けたものとしてもよい。また、前記実
施形態においては比例制御弁装置を暖房器の燃焼装置に
用いた例を示しているが、これに限らず、給湯器等の燃
焼装置に用いてもよい。In the above embodiment, the diaphragm 14 is provided on the primary side of the proportional control valve device. However, the present invention is not limited to this, and the diaphragm 14 may be provided on the secondary side. Further, in the above-described embodiment, an example is shown in which the proportional control valve device is used for a combustion device of a heater, but the present invention is not limited to this, and the proportional control valve device may be used for a combustion device such as a water heater.
【００２６】尚、弁本体１は、通常燃焼装置の内部に設
けられているため、燃焼装置の運転を開始すれば弁本体
１の雰囲気温度もすぐに上昇する。従って、通常は温度
がＴ max を越えたときの補正値を一定にすることを考慮
すればよい。The valve body 1 is usually provided inside a combustion device.
If the combustion device starts operating, the valve body
The ambient temperature of 1 also rises immediately. Therefore, usually the temperature
Is T maxConsider keeping the correction value when exceeding
do it.
【００２７】このように、本発明の比例制御弁装置によ
れば、温度の変化による二次側のガス圧の変動に影響の
大きいゴム製ダイヤフラムの温度特性に応じて比例弁に
印加する電流の値を補正しているので、温度の変化によ
りゴム製ダイヤフラムの特性が変化しても二次側のガス
圧は略一定に保たれる。したがって、燃焼装置周辺の温
度が変化しても燃焼量は変化せず、安定した出力を得る
ことができる。As described above, according to the proportional control valve device of the present invention, the current applied to the proportional valve depends on the temperature characteristic of the rubber diaphragm which has a large influence on the change in the gas pressure on the secondary side due to the change in temperature. Since the value is corrected, the gas pressure on the secondary side is kept substantially constant even if the characteristics of the rubber diaphragm change due to a change in temperature. Therefore, even if the temperature around the combustion device changes, the amount of combustion does not change, and a stable output can be obtained.
【図１】本発明の比例制御弁装置の実施形態の一例を示
す説明的断面図。FIG. 1 is an explanatory sectional view showing an example of an embodiment of a proportional control valve device of the present invention.
【図２】ゴム製ダイヤフラムの温度特性を示すグラフ。FIG. 2 is a graph showing temperature characteristics of a rubber diaphragm.
【図３】比例制御弁装置の温度補正の一例を示す説明
図。FIG. 3 is an explanatory diagram showing an example of temperature correction of a proportional control valve device.
【図４】温度と補正値の関係を示すグラフ。FIG. 4 is a graph showing a relationship between a temperature and a correction value.
１…弁本体、２…ガス通路、３，４…電磁弁、６…一次
室、７…二次室、８…弁体、９ａ…フェライト磁石、９
ｂ…電磁コイル、１０…電機子、１１…収納部、１２…
ガス流入口、１３…ガス流出口、１４…ダイヤフラム、
１５…ロッド、１６…弁座、１７…スプリング、１８…
サーミスタ。DESCRIPTION OF SYMBOLS 1 ... Valve main body, 2 ... Gas passage, 3, 4 ... Solenoid valve, 6 ... Primary chamber, 7 ... Secondary chamber, 8 ... Valve element, 9a ... Ferrite magnet, 9
b: electromagnetic coil, 10: armature, 11: storage part, 12 ...
Gas inlet, 13 ... gas outlet, 14 ... diaphragm,
15 ... rod, 16 ... valve seat, 17 ... spring, 18 ...
Thermistor.
Claims (2)
口とを連通するガス通路に弁座を設け、該弁座に着座す
る弁体をロッドにより吊設し、該ロッドに連設した電機
子を弁本体に設けた電磁コイルにより移動して前記弁体
を電磁コイルへの通電量に比例して開度変化させると共
に、前記弁体のガス圧に応動するゴム製ダイヤフラムを
前記弁体に連係させて設けた比例制御弁装置において、 前記ゴム製ダイヤフラムの温度を検出する温度センサを
設け、該温度センサの検出温度に応じて前記電磁コイル
に印加する電流を補正する補正手段を設けたことを特徴
とする比例制御弁装置。1. A valve seat is provided in a gas passage communicating a gas outlet and a gas inlet provided in a valve body, and a valve element seated on the valve seat is suspended by a rod, and is connected to the rod. The armature is moved by an electromagnetic coil provided in the valve body to change the opening degree of the valve body in proportion to the amount of electricity supplied to the electromagnetic coil, and the rubber diaphragm responsive to the gas pressure of the valve body is used for the valve. In a proportional control valve device provided in association with a body, a temperature sensor for detecting a temperature of the rubber diaphragm is provided, and a correction means for correcting a current applied to the electromagnetic coil according to a temperature detected by the temperature sensor is provided. A proportional control valve device.
る電流の補正を、前記検出温度が所定温度未満であると
きは該検出温度に応じた補正を行い、前記検出温度が所
定温度以上であるときは一定の補正値により補正を行う
ものであることを特徴とする請求項１に記載の比例制御
弁装置。2. The apparatus according to claim 1, wherein the correction means corrects a current applied to the electromagnetic coil, and performs a correction according to the detected temperature when the detected temperature is lower than a predetermined temperature. 2. The proportional control valve device according to claim 1, wherein the correction is performed with a certain correction value at a certain time.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15800996A JP3628808B2 (en) | 1996-06-19 | 1996-06-19 | Proportional control valve device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15800996A JP3628808B2 (en) | 1996-06-19 | 1996-06-19 | Proportional control valve device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH102446A true JPH102446A (en) | 1998-01-06 |
| JP3628808B2 JP3628808B2 (en) | 2005-03-16 |
Family
ID=15662274
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP15800996A Expired - Fee Related JP3628808B2 (en) | 1996-06-19 | 1996-06-19 | Proportional control valve device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3628808B2 (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009129593A (en) * | 2007-11-21 | 2009-06-11 | Honda Motor Co Ltd | Valve opening completion determination method and valve opening completion determination device for shutoff valve |
| KR20160066912A (en) | 2014-12-03 | 2016-06-13 | 린나이코리아 주식회사 | Dual solenoid valve |
| US9599232B2 (en) | 2014-11-04 | 2017-03-21 | Rinnai Corporation | Single coil dual solenoid valve |
| WO2020024920A1 (en) * | 2018-07-31 | 2020-02-06 | 浙江三花智能控制股份有限公司 | Fuel gas proportional valve and electromagnetic driving device therefor |
| CN110953399A (en) * | 2019-12-02 | 2020-04-03 | 华帝股份有限公司 | Proportional valve body with air source self-adaptive identification function and control method applying proportional valve body |
| CN113623106A (en) * | 2021-09-15 | 2021-11-09 | 重庆磐谷动力技术有限公司 | A proportional flow metering valve |
| WO2023272542A1 (en) * | 2021-06-30 | 2023-01-05 | 深圳市科曼医疗设备有限公司 | Proportional valve control method and apparatus, computer device and readable storage medium |
-
1996
- 1996-06-19 JP JP15800996A patent/JP3628808B2/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009129593A (en) * | 2007-11-21 | 2009-06-11 | Honda Motor Co Ltd | Valve opening completion determination method and valve opening completion determination device for shutoff valve |
| US9599232B2 (en) | 2014-11-04 | 2017-03-21 | Rinnai Corporation | Single coil dual solenoid valve |
| KR20160066912A (en) | 2014-12-03 | 2016-06-13 | 린나이코리아 주식회사 | Dual solenoid valve |
| WO2020024920A1 (en) * | 2018-07-31 | 2020-02-06 | 浙江三花智能控制股份有限公司 | Fuel gas proportional valve and electromagnetic driving device therefor |
| CN110953399A (en) * | 2019-12-02 | 2020-04-03 | 华帝股份有限公司 | Proportional valve body with air source self-adaptive identification function and control method applying proportional valve body |
| WO2023272542A1 (en) * | 2021-06-30 | 2023-01-05 | 深圳市科曼医疗设备有限公司 | Proportional valve control method and apparatus, computer device and readable storage medium |
| CN113623106A (en) * | 2021-09-15 | 2021-11-09 | 重庆磐谷动力技术有限公司 | A proportional flow metering valve |
Also Published As
| Publication number | Publication date |
|---|---|
| JP3628808B2 (en) | 2005-03-16 |
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