JPH01135984A - High range ability valve - Google Patents
High range ability valveInfo
- Publication number
- JPH01135984A JPH01135984A JP29309787A JP29309787A JPH01135984A JP H01135984 A JPH01135984 A JP H01135984A JP 29309787 A JP29309787 A JP 29309787A JP 29309787 A JP29309787 A JP 29309787A JP H01135984 A JPH01135984 A JP H01135984A
- Authority
- JP
- Japan
- Prior art keywords
- valve
- flow rate
- inner valve
- pilot
- pilot 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
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 8
- 239000012530 fluid Substances 0.000 description 6
- 238000010586 diagram Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 1
- WQGWDDDVZFFDIG-UHFFFAOYSA-N pyrogallol Chemical compound OC1=CC=CC(O)=C1O WQGWDDDVZFFDIG-UHFFFAOYSA-N 0.000 description 1
Landscapes
- Lift Valve (AREA)
- Details Of Valves (AREA)
Abstract
Description
【発明の詳細な説明】
（イ）産業上の利用分野
本発明はグローブ弁のインナー弁を複式に構成してレン
ジアビ、リティーを大巾に高め、それにより特に制御可
能な最小流量値を格段に引下げて弁リフトに対する流量
の変化を緩和できるようにしたハイレンジアビリティ−
パルプに関するものである。[Detailed Description of the Invention] (A) Industrial Application Field The present invention greatly increases the rangeability and stability by configuring the inner valve of the globe valve as a double valve, thereby significantly increasing the controllable minimum flow rate. High range ability that can be pulled down to alleviate changes in flow rate due to valve lift.
It concerns pulp.
（ｔｌ）従来の技術
従来、−ａ的なグローブ弁は第４図に示すように電動操
作機の推力軸を往動してその推力により、該推力軸と同
軸延長上に設けたステム１１を押すと、弁箱１２の弁座
１３に対してスプリング１４により常時当接閉止する方
向に付勢されているインナー弁１５は該スプリング１４
の弾ｔａ力と一次側圧力に逆らって該弁座１３から離れ
る方向に移動し、それにより流体は弁座１３とインナー
弁１５との間隙より流れて全開状態に移行する０反対に
電動操作機の推力軸を復動させると該推力軸はステムｌ
ｌから離れる方向に移動し、それに随伴してインナー弁
１５はスプリング１４の弾撥力により弁座１３に対して
接近する方向に移動し、それにより全閉状態に移行して
流体は完全に閉止されるように構成されている。(tl) Prior Art Conventionally, as shown in Fig. 4, a -a type globe valve moves the thrust shaft of an electric actuator forward and uses the thrust to move the stem 11 provided coaxially with the thrust shaft. When pressed, the inner valve 15, which is always urged by the spring 14 in the direction of contacting and closing against the valve seat 13 of the valve box 12, is moved by the spring 14.
The electric actuator moves in a direction away from the valve seat 13 against the elastic force and primary pressure of the valve, and as a result, fluid flows from the gap between the valve seat 13 and the inner valve 15 and shifts to the fully open state. When the thrust shaft of
The inner valve 15 moves in the direction away from the valve seat 13 due to the elastic force of the spring 14, thereby transitioning to a fully closed state and completely shutting off the fluid. is configured to be
上記インナー弁１５の切り込み形状は第５図に示すよう
に各流量特性によりオン−オフ（Ｑ）型（同図（イ））
、リニヤ（Ｌ）型（同図（ロ））、修正リニヤ（Ｖ）型
（同図（ハ））、イコール％（Ｅ）型（同図（ニ））等
各種があり、各インナー弁の流量値は個々の切込面積比
に比例する。尚、この場合、前記（ロ）、（ハ）、（ニ
）に於て流量を大きくするときは点線で示すように大き
く切り込むものである。The notch shape of the inner valve 15 is an on-off (Q) type depending on the flow rate characteristics as shown in Fig. 5 ((a) in the same figure).
There are various types such as , linear (L) type (same figure (b)), modified linear (V) type (same figure (c)), and equal % (E) type (same figure (d)). The flow rate value is proportional to the individual cutting area ratio. In this case, when increasing the flow rate in (b), (c), and (d) above, a large cut is made as shown by the dotted line.
このような単一のインナー弁の制御可能な最小流量は第
３図の流量特性図の通常のバルブの場合に示すように最
大流量の１７３゜〜１八。The minimum controllable flow rate of such a single inner valve is 173 degrees to 18 degrees of the maximum flow rate, as shown in the flow characteristic diagram of FIG. 3 for a normal valve.
程度であり、流量値の大きな変動に対して小流量の範囲
で微調節制御できない欠点があった。However, there was a drawback that fine adjustment control was not possible within a small flow rate range in response to large fluctuations in flow rate value.
（７１）発明が解決しようとする問題点本発明が解決し
ようとする問題点は、制御可能な最小流量を最大流量の
１八、。〜８八。。(71) Problems to be Solved by the Invention The problems to be solved by the invention are as follows: The minimum controllable flow rate is 18 times the maximum flow rate. ~88. .
程度まで微調節できるようにして流量調節を広い範囲ま
で可能訣併せて弁リフトに対する流量の変化を緩和した
ハイレンジアビリティ−バルブを得ようとするものであ
る。It is an object of the present invention to provide a high range ability valve that allows fine adjustment to a wide range of flow rates and that also alleviates changes in flow rate with respect to valve lift.
（ニ）問題点を解決するための手段
本発明はこのような従来の問題点に着目してなされたも
ので、弁箱内に設けられた弁座方向に常時付勢されてい
ると共に一次側と二次側にそれぞれ水孔を穿設して弁箱
状に形成されたインナー弁と、該インナー弁内に収容さ
れて該インナー弁に設けられた弁座方向に常時付勢され
ており、電動操作機に関係するステムにより往動され該
往動された所定位置で前記インナー弁に当接するパイロ
ット弁とから成るハイレンジアビリティ−バルブを提供
しようとするものである。(d) Means for Solving the Problems The present invention has been made by focusing on such conventional problems. and an inner valve formed in the shape of a valve box with water holes perforated on the secondary side thereof, and the inner valve is housed in the inner valve and is always biased toward a valve seat provided on the inner valve, It is an object of the present invention to provide a high range ability valve comprising a pilot valve that is moved forward by a stem related to an electric operating machine and abuts the inner valve at a predetermined position after the forward movement.
（ネ）作用及び実・施例
以下、本発−−施例の構成を図面第１図及び第２図を参
照しながら作用と共に説明する６第１図に示す全閉状態
において、電動操作機の推力に・よりステム１を往動す
ると、弁箱状に形成されたインナー弁２内に収容された
パイロット弁３はインナー弁２に設けられた弁座４方向
に常時付勢しているスプリング５と一次側ａの圧力に逆
らって前記弁座４から離れる方向に移動し、それにより
流体はインナー弁２の一次側水孔６から前記開弁間隙と
パイロット弁３の切り込みを通り二次側水孔７に流れ、
圧力は一次側ａと二次側すで平衡状態となる。引き続き
パイロット弁３をステム１により往動すると該パイロッ
ト弁３は所定位置でインナー弁２に当接する。更に、パ
イロット弁３をステム１により往動するとインナー弁２
は該パイロット弁３と一体的に随伴して弁箱８内に設け
られた弁座９方向に常時付勢しているスプリングｌＯに
逆らって該弁座９から離れる方向に移動し、第２図に示
すような全開状態に至る。それにより流体は各弁座４．
９との隙間からパイロット弁３とインナー弁２との切り
込みを通って一次側ａから二次側すに通水し大流量の流
体が流れることになる。(N) Function, implementation, and examples Hereinafter, the configuration of the present invention--example will be explained together with the function with reference to Figures 1 and 2. 6 In the fully closed state shown in Figure 1, the electric actuator When the stem 1 is moved forward by the thrust of 5 and moves away from the valve seat 4 against the pressure on the primary side a, whereby fluid flows from the primary side water hole 6 of the inner valve 2 through the valve opening gap and the notch of the pilot valve 3 to the secondary side. Flows into water hole 7,
The pressure on the primary side a and the secondary side are both in an equilibrium state. When the pilot valve 3 is subsequently moved forward by the stem 1, the pilot valve 3 contacts the inner valve 2 at a predetermined position. Furthermore, when the pilot valve 3 is moved forward by the stem 1, the inner valve 2
moves in the direction away from the valve seat 9 against the spring lO, which is integrally attached to the pilot valve 3 and is always biased in the direction of the valve seat 9 provided in the valve body 8, and as shown in FIG. It reaches a fully open state as shown in . Fluid is thereby transferred to each valve seat 4.
Water flows from the primary side a to the secondary side through the gap between the pilot valve 3 and the inner valve 2, and a large amount of fluid flows.
反対に、電動操作機を逆転して推力軸を復動させると、
パイロット弁３とインナー弁２が共に開弁状態のときは
両弁２，３はスプリング５． ｔｏの弾撥作用により一
体的に復動して先ずインナー弁２が弁箱８の弁座９に当
接して閉弁し、引き続きパイロット弁３が該インナー弁
２内を復動して該インナー弁２に設けられた弁座４に当
接して閉弁し第１図に示すような全閉状態となり、流体
の流れは完全に止まることになる。On the other hand, if the electric actuator is reversed and the thrust shaft is moved back,
When both the pilot valve 3 and the inner valve 2 are in the open state, both valves 2 and 3 are held by the spring 5. First, the inner valve 2 contacts the valve seat 9 of the valve box 8 and closes, and then the pilot valve 3 moves back inside the inner valve 2 to close the inner valve 2. The valve contacts the valve seat 4 provided on the valve 2 and closes, resulting in a fully closed state as shown in FIG. 1, and the flow of fluid is completely stopped.
従って、パイロット弁３の位置によりパイロット弁３と
インナー弁２が共に閉弁した全閉状態からパイロット弁
３とインナー弁２とが共に開弁してその答弁２．３の切
り込みを通水する全開′状態までの任意の流量を設定す
ることができるものであり、第３図の流量特性図の本弁
の場合に示すように最小流量をポート径の小さいパイロ
ット弁３で流すのでインナー弁２の最大流量の’／＋ｓ
＋＋〜Ｉ／冨。。程度までの流量が制御可能となるもの
である。Therefore, depending on the position of the pilot valve 3, the pilot valve 3 and the inner valve 2 are both opened from the fully closed state in which both the pilot valve 3 and the inner valve 2 are closed, and the response is to fully open the notch in the valve 2.3 to allow water to flow through. It is possible to set an arbitrary flow rate up to the ' state, and as shown in the case of this valve in the flow rate characteristic diagram in Figure 3, the minimum flow rate is flowed through the pilot valve 3 with a small port diameter, so the inner valve 2 is Maximum flow rate '/+s
++~I/Tomi. . It is possible to control the flow rate up to a certain degree.
（へ）発明の効果
本発明は以上の説明により明らかなように、全開に移行
するときはパイロット弁、インナー弁のＩ’ｌｌ序で段
階的に開弁し、全閉に移行するときはインナー弁、パイ
ロット弁の順序で段階的に閉弁する。従って、弁のレン
ジアビリティ−即ち、
制御可能な最小流量／最大流量
についてみれば、従来の如き単一のインナー弁で行うと
インナー弁のボート径は本発明のインナー弁と同一寸法
となり、最大流量は同一であるが、単一弁の制御可能な
最小流量は最大流量の１八。〜１八。程度であるのに対
して、本願の場合は最小流量をポート径の小さいパイロ
７）弁で流すので、制御可能な最小流量はインナー弁の
最大流量の１八。〜’／ｌ。。程度まで微調節でき、そ
れにより流量調節を広い範囲まで可能にした所謂ハイレ
ンジアビリティ−とし、併せて弁リフトに対する流量の
変化が緩和され、優れた制御性を有する。(f) Effects of the Invention As is clear from the above explanation, the present invention opens the pilot valve and the inner valve in stages when moving to a fully open state, and when moving to a fully closed state, the inner valve opens in stages. Close the valve in stages, first the pilot valve. Therefore, if we look at the rangeability of the valve, that is, the minimum flow rate/maximum flow rate that can be controlled, if we use a single inner valve like the conventional one, the boat diameter of the inner valve will be the same size as the inner valve of the present invention, and the maximum flow rate will be are the same, but the minimum controllable flow rate of a single valve is 18 of the maximum flow rate. ~18. On the other hand, in the case of this application, the minimum flow rate is made to flow through the pyro valve with a small port diameter, so the minimum controllable flow rate is 18 times the maximum flow rate of the inner valve. ~'/l. . The flow rate can be finely adjusted to a wide range, resulting in so-called high range ability, which allows the flow rate to be adjusted over a wide range.At the same time, changes in the flow rate due to valve lift are alleviated, and the valve has excellent controllability.
また、操作機の推力即ち、
弁締め切り圧力×インナー弁ボート径面積についてみれ
ば、本願の場合はパイロット弁を開ける時だけ推力が必
要となり、インナー弁を開ける時には一次側と二次側の
圧力は平衡状態になっているので同一口径、同一流量の
単一弁と比較して小さな推力で作動させることができる
から、優れた操作性を有する等の合理的且つ経済的なパ
ルプである。Also, if we look at the thrust of the operating device, that is, valve closing pressure x inner valve boat diameter area, in the case of this application, thrust is required only when opening the pilot valve, and when opening the inner valve, the pressure on the primary and secondary sides is Since it is in an equilibrium state, it can be operated with a smaller thrust than a single valve with the same diameter and the same flow rate, so it is a rational and economical pulp with excellent operability.
第１図は本発明一実施例の構成を示す全閉状態の断面図
、第２図は同全開状態の断面図、第３図は流量特性図、
第４図は従来の構成の一例を示す閉弁状態の断面図、第
５図は各種のインナー弁の切ら込み形状を示す正面図で
ある。
１・・・ステム、２・・・インナー弁、３・・・パイロ
ット弁、４・・・弁座、５・・・スプリング、６．７・
・・水孔、８・・・弁箱、９・・・弁座、ＩＯ・・・ス
プリング、ａ・・・−次側、ｂ・・・二次側
、口FIG. 1 is a cross-sectional view of a fully closed state showing the configuration of an embodiment of the present invention, FIG. 2 is a cross-sectional view of the same fully open state, and FIG. 3 is a flow rate characteristic diagram.
FIG. 4 is a sectional view showing an example of a conventional configuration in a valve closed state, and FIG. 5 is a front view showing the shape of cuts of various inner valves. DESCRIPTION OF SYMBOLS 1...Stem, 2...Inner valve, 3...Pilot valve, 4...Valve seat, 5...Spring, 6.7.
...Water hole, 8...Valve box, 9...Valve seat, IO...Spring, a...-Next side, b...Secondary side, mouth
Claims (1)
と共に一次側ａと二次側ｂにそれぞれ水孔６、７を穿設
して弁箱状に形成されたインナー弁２と、該インナー弁
２内に収容されて該インナー弁２に設けられた弁座４方
向に常時付勢されており、電動操作機に関係するステム
１により往動され該往動された所定位置で前記インナー
弁２に当接するパイロット弁３とから成ることを特徴と
するハイレンジアビリティーバルブ。An inner valve 2 is always biased toward a valve seat 9 provided in a valve box 8 and is formed into a valve box shape with water holes 6 and 7 bored on the primary side a and the secondary side b, respectively. It is housed in the inner valve 2 and is always biased in the direction of the valve seat 4 provided on the inner valve 2, and is moved forward by the stem 1 related to the electric operating machine to a predetermined position. and a pilot valve 3 in contact with the inner valve 2.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62293097A JPH0681991B2 (en) | 1987-11-21 | 1987-11-21 | High range ability valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62293097A JPH0681991B2 (en) | 1987-11-21 | 1987-11-21 | High range ability valve |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH01135984A true JPH01135984A (en) | 1989-05-29 |
| JPH0681991B2 JPH0681991B2 (en) | 1994-10-19 |
Family
ID=17790383
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP62293097A Expired - Fee Related JPH0681991B2 (en) | 1987-11-21 | 1987-11-21 | High range ability valve |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0681991B2 (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2011144848A (en) * | 2010-01-13 | 2011-07-28 | Aisan Industry Co Ltd | Solenoid valve and evaporated-fuel processing device including the same |
| JP2012097711A (en) * | 2010-11-05 | 2012-05-24 | Aisan Industry Co Ltd | Solenoid valve and evaporated fuel processing device having the solenoid valve |
| JP2015129626A (en) * | 2013-12-05 | 2015-07-16 | リンナイ株式会社 | Gas flow rate adjusting device |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS53102130U (en) * | 1977-01-22 | 1978-08-17 |
-
1987
- 1987-11-21 JP JP62293097A patent/JPH0681991B2/en not_active Expired - Fee Related
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS53102130U (en) * | 1977-01-22 | 1978-08-17 |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2011144848A (en) * | 2010-01-13 | 2011-07-28 | Aisan Industry Co Ltd | Solenoid valve and evaporated-fuel processing device including the same |
| US8622088B2 (en) | 2010-01-13 | 2014-01-07 | Aisan Kogyo Kabushiki Kaisha | Solenoid valves capable of controlling valve-opening area |
| JP2012097711A (en) * | 2010-11-05 | 2012-05-24 | Aisan Industry Co Ltd | Solenoid valve and evaporated fuel processing device having the solenoid valve |
| JP2015129626A (en) * | 2013-12-05 | 2015-07-16 | リンナイ株式会社 | Gas flow rate adjusting device |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0681991B2 (en) | 1994-10-19 |
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