JPH10196807A - Device for keeping prescribed opening of valve element - Google Patents

Device for keeping prescribed opening of valve element

Info

Publication number
JPH10196807A
JPH10196807A JP116997A JP116997A JPH10196807A JP H10196807 A JPH10196807 A JP H10196807A JP 116997 A JP116997 A JP 116997A JP 116997 A JP116997 A JP 116997A JP H10196807 A JPH10196807 A JP H10196807A
Authority
JP
Japan
Prior art keywords
valve
setting
valve body
opening
plate
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.)
Pending
Application number
JP116997A
Other languages
Japanese (ja)
Inventor
Takeo Watanuki
健雄 綿貫
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Kubota Corp
Original Assignee
Kubota Corp
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Kubota Corp filed Critical Kubota Corp
Priority to JP116997A priority Critical patent/JPH10196807A/en
Publication of JPH10196807A publication Critical patent/JPH10196807A/en
Pending legal-status Critical Current

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  • Lift Valve (AREA)
  • Preventing Unauthorised Actuation Of Valves (AREA)

Abstract

PROBLEM TO BE SOLVED: To keep a valve element at optionally opening in conditions where an actuator is removed, by providing a valve-element-opening-setting plate on a valve spindle part, a stopper-fixing-fixture part at the opposite position to the setting plate and inserting a removable stopper into one of setting holes on the setting plate and simultaneously fixing the stopper onto the fixture. SOLUTION: One end of the valve spindle 3 of a butterfly valve is projected out from a valve setting. On the end surface of the valve spindle 3, a valve- element-opening setting plate 6 is removably mounted with bolts 7. The setting plate 6 above has a base hole 6A through the plate at the position apart from the center O of the plate on the horizontal line C2 passing through the center O and rectangular to the vertical line C1 and is provided with a plurality of setting holes 8a-8s through the plate having a plurality of optionally divided angle on the four quadrants I-IV created by the vertical line C1 and the horizontal line C2. Therefore, the valve element can be kept at a prescribed opening by aligning one of the setting holes selected among the setting holes 8a-8s with a threaded hole on the valve casing side and inserting a removable stopper.

Description

【発明の詳細な説明】DETAILED DESCRIPTION OF THE INVENTION

【0001】[0001]

【発明の属する技術分野】本発明は、弁体の所定開度保
持装置に係り、さらに詳しくは、綿密な開度調整が要求
されるFCCパワーリカバリーバタフライ弁の弁体を所
定開度で保持するのに好適な弁体の所定開度保持装置に
関する。
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a device for maintaining a predetermined opening degree of a valve body, and more particularly, to a valve body of an FCC power recovery butterfly valve which requires a precise opening degree adjustment at a predetermined opening degree. The present invention relates to a device for maintaining a predetermined opening degree of a valve element suitable for the above.

【0002】[0002]

【従来の技術】図6に示す弁体1が弁箱2の内部で弁棒
3に同時回転可能に取付けられ、この弁棒3が弁箱2を
気密もしくは液密に貫通し、かつ回転自在に支持されて
突出しているとともに、弁棒3を回動させるアクチュエ
ータ4によって弁体1の開閉がなされるように構成され
たFCCパワーリカバリーバタフライ弁では、アクチュ
エータ4の除去時に弁体1を所定開度(角度)で保持す
る機能を有していない。したがって、たとえば定期的に
なされるアクチュエータ4のメンテナンスに際して、原
則としてバタフライ弁が介設されているプラントの操業
を停止していた。このため、生産性を大幅に低下させる
不都合が生じていた。このことは、前記FCCパワーリ
カバリーバタフライ弁のみならず、弁体1が弁箱2の内
部で弁棒3に同時回転可能に取付けられ、この弁棒3が
弁箱2を気密もしくは液密に貫通し、かつ回転自在に支
持されて突出しているとともに、弁棒3を回動させるア
クチュエータ4によって弁体1の開閉がなされるように
構成された他のバタフライ弁やボール弁などにも言及で
きる。
2. Description of the Related Art A valve body 1 shown in FIG. 6 is attached to a valve stem 3 inside a valve box 2 so as to be rotatable at the same time. The valve stem 3 penetrates the valve box 2 in an airtight or liquid tight manner and is rotatable. In the FCC power recovery butterfly valve, which is supported and protruded, and is configured so that the valve element 1 is opened and closed by an actuator 4 that rotates the valve rod 3, the valve element 1 is opened at a predetermined time when the actuator 4 is removed. Does not have the function of holding in degrees (angles). Therefore, for example, when the actuator 4 is regularly maintained, the operation of the plant in which the butterfly valve is interposed has been stopped in principle. For this reason, there has been an inconvenience of significantly reducing the productivity. This means that not only the above-mentioned FCC power recovery butterfly valve, but also the valve element 1 is attached to the valve rod 3 inside the valve box 2 so as to be able to rotate simultaneously, and this valve rod 3 penetrates the valve box 2 in an air-tight or liquid-tight manner. In addition, there can be mentioned other butterfly valves, ball valves, and the like, which are rotatably supported and protruded, and are configured so that the valve element 1 is opened and closed by an actuator 4 for rotating the valve rod 3.

【0003】[0003]

【発明が解決しようとする課題】すなわち、従来のバタ
フライ弁やボール弁では、アクチュエータの除去時に弁
体を所定開度で保持する機能を有していないので、アク
チュエータのメンテナンスなどに際して、原則としてバ
タフライ弁やボール弁などの弁が介設されているプラン
トの操業を停止しなければならず、生産性を大幅に低下
させる不都合が生じていた。
That is, conventional butterfly valves and ball valves do not have a function of holding the valve body at a predetermined opening when the actuator is removed. The operation of a plant provided with a valve such as a valve or a ball valve has to be stopped, which causes a disadvantage that productivity is greatly reduced.

【0004】そこで、本発明は、アクチュエータを除去
しても、弁体を所定開度で保持できるように構成するこ
とにより、弁が介設されているプラントの操業を停止さ
せることなく、アクチュエータのメンテナンスなどを実
行することができ、生産性の低下を回避することもでき
る弁体の所定開度保持装置を提供することを目的として
いる。
Accordingly, the present invention is configured such that the valve body can be maintained at a predetermined opening even if the actuator is removed, so that the operation of the plant in which the valve is interposed is stopped without stopping the operation of the plant. It is an object of the present invention to provide a device for maintaining a predetermined opening degree of a valve body, which can perform maintenance and the like and can avoid a decrease in productivity.

【0005】[0005]

【課題を解決するための手段】前記目的を達成するため
に、本発明は、弁体が弁箱の内部で弁棒に同時回転可能
に取付けられ、この弁棒が弁箱を気密もしくは液密に貫
通し、かつ回転自在に支持されて突出している弁におい
て、前記弁箱から突出されている弁棒の部分に、この弁
棒と同時回転させる弁体開度設定板を設け、この弁体開
度設定板の対向位置には止め具固定用の固定部を設け、
前記弁体開度設定板にはこれを回動させて前記固定部に
位置合わせしたときに前記弁体が所定の開度に設定され
るように複数の止め具挿入用の設定孔を形成し、これら
設定孔の中から選択した設定孔を前記固定部に位置合わ
せして着脱可能な止め具を前記設定孔に挿入するととも
に前記固定部に固定させて、前記弁体を所定の開度に保
持させるようにしたことを特徴としている。
In order to achieve the above-mentioned object, the present invention provides a valve body in which a valve body is attached to a valve stem so as to be rotatable at the same time inside the valve box. And a valve body that is rotatably supported and protrudes from the valve box, and provided with a valve body opening degree setting plate for simultaneous rotation with the valve body at a portion of the valve body protruding from the valve box. At the opposite position of the opening setting plate, a fixing part for fixing the stopper is provided,
The valve body opening setting plate is formed with a plurality of stopper insertion holes so that the valve body is set to a predetermined opening when the valve body is rotated and aligned with the fixed portion. Aligning a setting hole selected from these setting holes with the fixing portion, inserting a detachable stopper into the setting hole and fixing the fixing member to the fixing portion, the valve body is brought to a predetermined opening degree. It is characterized in that it is held.

【0006】本発明によれば、弁体開度設定板に形成さ
れている複数の止め具挿入用の設定孔の中から選択した
設定孔を止め具固定用の固定部に位置合わせして、止め
具を設定孔に挿入するとともに前記固定部に固定させる
ことで、選択した設定孔の形成位置で決まる開度で弁体
を保持することができる。
According to the present invention, a setting hole selected from a plurality of setting holes for inserting the stoppers formed in the valve opening setting plate is aligned with the fixing portion for fixing the stoppers. By inserting the stopper into the setting hole and fixing it to the fixing portion, the valve body can be held at an opening determined by the position where the selected setting hole is formed.

【0007】[0007]

【発明の実施の形態】以下、本発明の一実施の形態を図
面に基づいて説明する。図1は、本発明の一実施の形態
を適用したバタフライ弁を一部断面にして示す正面図、
図2は図1の平面図であり、図6の従来例と同一もしく
は相当部分には、同一符号を付して説明する。図1およ
び図2において、バタフライ弁は、弁体1が弁箱2の内
部で弁棒3に同時回転可能に取付けられ、この弁棒3の
両端部が弁箱2を気密もしくは液密に貫通し、かつ回転
自在に支持されて外部突出しており、一端部側には弁体
開閉用のアクチュエータ4が連結され、このアクチュエ
ータ4によって弁体1の開閉がなされるように構成され
ている。
An embodiment of the present invention will be described below with reference to the drawings. FIG. 1 is a front view showing a butterfly valve according to an embodiment of the present invention in a partial cross section,
FIG. 2 is a plan view of FIG. 1, and the same or corresponding parts as in the conventional example of FIG. 1 and 2, the butterfly valve has a valve element 1 mounted on a valve rod 3 inside a valve box 2 so as to be rotatable at the same time, and both ends of the valve rod 3 penetrate the valve box 2 in an air-tight or liquid-tight manner. It is rotatably supported and protrudes outside. An actuator 4 for opening and closing the valve body is connected to one end side, and the valve body 1 is configured to be opened and closed by this actuator 4.

【0008】一方、弁棒3の他端部側は弁箱2側に取付
けられているブラケット5に回転自在に支持され、その
端面3Aをブラケット5よりも外側に突出させている。
そして、図3および図4に示すように、弁棒3の端面3
Aに弁体開度設定板6がボルト7,7によって着脱可能
に取付けられている。
On the other hand, the other end of the valve stem 3 is rotatably supported by a bracket 5 attached to the valve box 2, and has an end face 3 A protruding outside the bracket 5.
Then, as shown in FIG. 3 and FIG.
A valve body opening degree setting plate 6 is detachably attached to A by bolts 7,7.

【0009】弁体開度設定板6は、中心Oを通る垂直線
C1と、中心Oを通って垂直線C1に直交する水平線C
2上の中心Oから離れた位置に基準孔6Aを貫設してあ
る。また、垂直線C1と水平線C2の間に存在する4つ
の象現I,II,III,IVに、複数の任意の分割角
度を有して複数の弁開度設定孔8a,8b〜8r,8s
が貫設されている。これら弁開度設定孔8a,8b〜8
r,8sは、中心Oから基準孔6Aの中心までの寸法を
曲率半径として描かれる円周R上にあって、垂直線C1
と水平線C2に対して所定の角度(数値参照)で傾斜す
る位置に設定されている。また、ブラケット5には、円
周Rの後側で垂直線C1と水平線C2の交点に4つのね
じ孔5A,5B、5C,5Dが形成されている。
The valve opening degree setting plate 6 includes a vertical line C1 passing through the center O and a horizontal line C1 passing through the center O and orthogonal to the vertical line C1.
A reference hole 6A is provided at a position distant from the center O on 2. Also, the four quadrants I, II, III, and IV existing between the vertical line C1 and the horizontal line C2 have a plurality of valve opening setting holes 8a, 8b to 8r, 8s having a plurality of arbitrary division angles.
Is pierced. These valve opening setting holes 8a, 8b to 8
r and 8s are on the circumference R drawn with the dimension from the center O to the center of the reference hole 6A as the radius of curvature, and are perpendicular to the vertical line C1.
And a position inclined at a predetermined angle (see numerical values) with respect to the horizontal line C2. The bracket 5 has four screw holes 5A, 5B, 5C, and 5D at the intersection of the vertical line C1 and the horizontal line C2 on the rear side of the circumference R.

【0010】前記構成において、仮に、図3および図4
で示す状態を弁体1の開度を0とした全閉状態であると
すれば、この全閉状態は、弁体開度設定板6の基準孔6
Aを介してねじ孔5Bに止めボルト9の先端部を螺合す
ることで保持できる。また、開度を2.5゜,4.5,
゜、9゜,18゜,20.5゜,22.5,゜27゜,
36゜,38.5゜,40.5,゜45゜,54゜,5
6.5゜,58.5,゜63゜,72゜,74.5,゜
76.5゜,81゜,90゜(全開)で保持することが
できる。
In the above-mentioned configuration, if FIGS.
Is a fully closed state in which the opening of the valve body 1 is set to 0, the fully closed state corresponds to the reference hole 6 of the valve body opening setting plate 6.
It can be held by screwing the tip of the stop bolt 9 into the screw hole 5B via A. In addition, the opening degree is set to 2.54, 4.5,
゜, 9 ゜, 18 ゜, 20.5 ゜, 22.5, {27 ゜,
36 ゜, 38.5 ゜, 40.5, {45 ゜, 54 ゜, 5
It can be held at 6.5, 58.5, {63}, 72}, 74.5, {76.5}, 81}, 90 ° (fully open).

【0011】図1および図2のアクチュエータ4によっ
て、弁棒3を図3および図4の時計まわりに2.5゜回
動させて、弁体1を2.5゜の開度で弁開して操業して
いる状態では、弁開度設定孔8oがねじ孔5Dに対応す
るので、アクチュエータ4のメンテナンスなどに際して
は、図5(A)で示すように、弁開度設定孔8oを介し
てねじ孔5Dに図3の止めボルト9の先端部を螺合する
ことで弁体1を2.5゜の開度で保持できる。また、ア
クチュエータ4によって、弁棒3を図3および図4の時
計まわりに45゜回動させて、弁体1を45゜の開度で
弁開して操業している状態では、弁開度設定孔8cがね
じ孔5Bに対応するので、アクチュエータ4のメンテナ
ンスなどに際しては、図5(B)で示すように、弁開度
設定孔8cを介してねじ孔5Bに止めボルト9の先端部
を螺合することで弁体1を45゜の開度で保持できる。
さらに、アクチュエータ4によって、弁棒3を図3およ
び図4の時計まわりに90゜回動させて、弁体1を全開
して操業している状態では、基準孔6Aがねじ孔5Cに
対応するので、アクチュエータ4のメンテナンスなどに
際しては、図5(C)で示すように、基準孔6Aを介し
てねじ孔5Cに止めボルト9の先端部を螺合することで
弁体1を全開状態で保持できる。
1 and 2, the valve rod 3 is rotated clockwise by 2.5 ° in FIGS. 3 and 4, and the valve body 1 is opened at an opening of 2.5 °. In the state of operation, the valve opening setting hole 8o corresponds to the screw hole 5D. Therefore, when performing maintenance of the actuator 4 or the like, as shown in FIG. The valve element 1 can be held at an opening of 2.5 ° by screwing the tip of the fixing bolt 9 of FIG. 3 into the screw hole 5D. In the state where the valve stem 1 is rotated by 45 ° clockwise in FIGS. 3 and 4 by the actuator 4 to open the valve body 1 at an opening of 45 °, the valve opening is Since the setting hole 8c corresponds to the screw hole 5B, at the time of maintenance of the actuator 4 or the like, as shown in FIG. By screwing, the valve element 1 can be held at an opening of 45 °.
Further, when the valve stem 3 is rotated 90 ° clockwise in FIGS. 3 and 4 by the actuator 4 to operate the valve body 1 fully opened, the reference hole 6A corresponds to the screw hole 5C. Therefore, when performing maintenance of the actuator 4, as shown in FIG. 5C, the valve element 1 is held in a fully open state by screwing the tip end of the fixing bolt 9 into the screw hole 5C via the reference hole 6A. it can.

【0012】すなわち、弁体開度設定板6に形成されて
いる弁開度設定孔8a,8b〜8r,8sの中から選択
した設定孔をねじ孔5A,5B,5C,5Dのいずれか
に位置合わせして、止めボルト9を設定孔に挿入すると
ともにねじ孔5A,5B,5C,5Dのいずれかに螺合
させることで、選択した設定孔の形成位置で決まる開度
で弁体1を保持することができる。したがって、短期間
であれば従来のように弁が介設されているプラントの操
業を停止させることなく、アクチュエータ4を除去して
メンテナンスなどを実行することができるので、生産性
の低下を回避することが可能になる。しかも、弁開度設
定孔の形成位置が異なる弁体開度設定板6を複数用意し
ておき、弁体1の保持開度に応じて弁体開度設定板6を
交換して使用することができる。
That is, a setting hole selected from the valve opening setting holes 8a, 8b to 8r, 8s formed in the valve body opening setting plate 6 is set to one of the screw holes 5A, 5B, 5C, 5D. By aligning and inserting the set bolt 9 into the setting hole and screwing it into one of the screw holes 5A, 5B, 5C and 5D, the valve body 1 is opened at an opening determined by the position where the selected setting hole is formed. Can be held. Therefore, in a short period of time, the maintenance can be performed by removing the actuator 4 without stopping the operation of the plant provided with the valve as in the related art, thereby avoiding a decrease in productivity. It becomes possible. In addition, a plurality of valve body opening setting plates 6 having different positions for forming the valve opening setting holes are prepared, and the valve body opening setting plates 6 are exchanged and used according to the holding opening of the valve body 1. Can be.

【0013】なお、前記実施の形態では、弁開度設定孔
8a,8b〜8r,8sの中から選択した設定孔をねじ
孔5A,5B,5C,5Dのいずれかに位置合わせし
て、止めボルト9を螺合させるようにしているが、止め
ボルト9に代わる止めピンをねじ孔5A,5B,5C,
5Dに代わる通常の孔のいずれかに嵌合するようにして
もよい。また、バタフライ弁に適用しているが、ボール
弁に適用することもできる。
In the above-described embodiment, the setting holes selected from the valve opening setting holes 8a, 8b to 8r, 8s are aligned with any of the screw holes 5A, 5B, 5C, 5D, and stopped. Although the bolt 9 is screwed, the retaining pin in place of the retaining bolt 9 is provided with screw holes 5A, 5B, 5C,
You may make it fit in any of the normal holes instead of 5D. Further, the present invention is applied to a butterfly valve, but can also be applied to a ball valve.

【0014】[0014]

【発明の効果】以上説明したように、本発明は、アクチ
ュエータの除去状態で弁体を任意の開度で保持できるの
で、短期間であれば従来のように弁が介設されているプ
ラントの操業をを停止させることなく、アクチュエータ
のメンテナンスなどを実行することができる。このた
め、生産性の低下を回避することが可能になる。しか
も、弁開度設定孔の形成位置が異なる弁体開度設定板を
複数用意しておき、弁体の保持開度に応じて弁体開度設
定板を交換して使用することもできる。
As described above, according to the present invention, the valve body can be held at an arbitrary opening degree in the state where the actuator is removed. Maintenance of the actuator can be performed without stopping the operation. For this reason, it is possible to avoid a decrease in productivity. In addition, it is also possible to prepare a plurality of valve body opening setting plates having different positions where the valve opening setting holes are formed, and to replace and use the valve body opening setting plates according to the holding opening of the valve body.

【図面の簡単な説明】[Brief description of the drawings]

【図1】本発明の一実施の形態を適用したバタフライ弁
を一部断面にして示す正面図である。
FIG. 1 is a front view showing a butterfly valve according to an embodiment of the present invention in a partial cross section.

【図2】図1の平面図である。FIG. 2 is a plan view of FIG.

【図3】要部の拡大側面図である。FIG. 3 is an enlarged side view of a main part.

【図4】図3のA−A矢視図である。FIG. 4 is a view as viewed in the direction of arrows AA in FIG. 3;

【図5】(A)(B)(C)は弁体の開度の異なる保持
状態の説明図である。
FIGS. 5A, 5B, and 5C are explanatory diagrams of holding states in which the opening degrees of the valve body are different.

【図6】従来のバタフライ弁を一部断面にして示す正面
図である。
FIG. 6 is a front view showing a partial cross section of a conventional butterfly valve.

【符号の説明】[Explanation of symbols]

1 弁体 2 弁箱 3 弁棒 5A〜5D ねじ孔(止め具固定用の固定部) 6 弁体開度設定板 7 軸受部材 8a〜8s 弁体開度設定孔(止め具挿入用の設定孔) 9 止めボルト(止め具) 9 プラグ REFERENCE SIGNS LIST 1 valve body 2 valve box 3 valve stem 5A to 5D screw hole (fixing portion for fixing fastener) 6 valve body opening setting plate 7 bearing member 8a to 8s valve body opening setting hole (setting hole for inserting stopper) 9) Fixing bolt (stopper) 9 Plug

Claims (1)

【特許請求の範囲】[Claims] 【請求項1】 弁体が弁箱の内部で弁棒に同時回転可能
に取付けられ、この弁棒が弁箱を気密もしくは液密に貫
通し、かつ回転自在に支持されて突出している弁におい
て、前記弁箱から突出されている弁棒の部分に、この弁
棒と同時回転させる弁体開度設定板を設け、この弁体開
度設定板の対向位置には止め具固定用の固定部を設け、
前記弁体開度設定板にはこれを回動させて前記固定部に
位置合わせしたときに前記弁体が所定の開度に設定され
るように複数の止め具挿入用の設定孔を形成し、これら
設定孔の中から選択した設定孔を前記固定部に位置合わ
せして着脱可能な止め具を前記設定孔に挿入するととも
に前記固定部に固定させて、前記弁体を所定の開度に保
持させるようにしたことを特徴とする弁体の所定開度保
持装置。
1. A valve wherein a valve body is rotatably attached to a valve stem inside a valve box, and the valve stem penetrates the valve box air-tight or liquid-tight, and is rotatably supported and protrudes. A valve body opening setting plate for simultaneously rotating with the valve stem is provided on a portion of the valve stem protruding from the valve box, and a fixing portion for fixing a stopper is provided at a position facing the valve body opening setting plate. Is established,
The valve body opening setting plate is formed with a plurality of stopper insertion holes so that the valve body is set to a predetermined opening when the valve body is rotated and aligned with the fixed portion. Aligning a setting hole selected from these setting holes with the fixing portion, inserting a detachable stopper into the setting hole and fixing the fixing member to the fixing portion, the valve body is brought to a predetermined opening degree. A device for maintaining a predetermined opening degree of a valve body, characterized in that the device is held.
JP116997A 1997-01-08 1997-01-08 Device for keeping prescribed opening of valve element Pending JPH10196807A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP116997A JPH10196807A (en) 1997-01-08 1997-01-08 Device for keeping prescribed opening of valve element

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP116997A JPH10196807A (en) 1997-01-08 1997-01-08 Device for keeping prescribed opening of valve element

Publications (1)

Publication Number Publication Date
JPH10196807A true JPH10196807A (en) 1998-07-31

Family

ID=11493945

Family Applications (1)

Application Number Title Priority Date Filing Date
JP116997A Pending JPH10196807A (en) 1997-01-08 1997-01-08 Device for keeping prescribed opening of valve element

Country Status (1)

Country Link
JP (1) JPH10196807A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100786037B1 (en) * 2007-06-08 2007-12-17 주식회사 비엠티 Valve operated by a master-key

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100786037B1 (en) * 2007-06-08 2007-12-17 주식회사 비엠티 Valve operated by a master-key
WO2008150043A1 (en) * 2007-06-08 2008-12-11 Bmt Co., Ltd. Valve operated by a master key
US8585010B2 (en) 2007-06-08 2013-11-19 Bmt Co., Ltd. Valve operated by a master key

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