JPS6125947B2 - - Google Patents
Info
- Publication number
- JPS6125947B2 JPS6125947B2 JP950881A JP950881A JPS6125947B2 JP S6125947 B2 JPS6125947 B2 JP S6125947B2 JP 950881 A JP950881 A JP 950881A JP 950881 A JP950881 A JP 950881A JP S6125947 B2 JPS6125947 B2 JP S6125947B2
- Authority
- JP
- Japan
- Prior art keywords
- valve
- valve body
- metal
- sheet
- seat
- 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
- 239000002184 metal Substances 0.000 claims description 38
- 230000005489 elastic deformation Effects 0.000 claims description 6
- 238000007789 sealing Methods 0.000 description 7
- 239000012530 fluid Substances 0.000 description 3
- 238000012856 packing Methods 0.000 description 3
- 239000010425 asbestos Substances 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 210000004907 gland Anatomy 0.000 description 2
- 229910052895 riebeckite Inorganic materials 0.000 description 2
- 229910000639 Spring steel Inorganic materials 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
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
- F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
- F16K1/16—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces with pivoted closure-members
- F16K1/18—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces with pivoted closure-members with pivoted discs or flaps
- F16K1/22—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces with pivoted closure-members with pivoted discs or flaps with axis of rotation crossing the valve member, e.g. butterfly valves
- F16K1/226—Shaping or arrangements of the sealing
- F16K1/2261—Shaping or arrangements of the sealing the sealing being arranged on the valve member
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Lift Valve (AREA)
Description
【発明の詳細な説明】
本発明は、円盤状回転弁体に付設のメタルシー
トと弁箱に付設のメタルシートを、弁閉じ状態で
接触させるべく構成したバタフライ弁に関する。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a butterfly valve in which a metal seat attached to a disc-shaped rotary valve body and a metal seat attached to a valve box are brought into contact with each other in the valve closed state.
この種のバタフライ弁として、例えば実開昭54
−176124号公報に記載された技術が従来において
知られている。この従来技術は、耐熱性ならびに
耐摩耗性に富むメタルシートを備えたバタフライ
弁において、弁体周縁との間に間隙を形成する状
態でメタルシートの一端側を弁体に固着し、閉弁
状態のときに前記メタルシートの遊端側を弾性撓
み変形させて弁箱シートに押圧接触させる事によ
り、高いシール性を得られるようにしたものであ
る。 As this kind of butterfly valve, for example,
The technique described in Japanese Patent No. 176124 is known in the art. In this conventional technology, in a butterfly valve equipped with a metal sheet that is highly heat resistant and wear resistant, one end of the metal sheet is fixed to the valve body with a gap formed between the metal sheet and the periphery of the valve body, and the valve is closed. At this time, the free end side of the metal sheet is elastically deformed and pressed into contact with the valve box seat, thereby achieving high sealing performance.
この従来技術によると、高いシール性を得られ
る反面、輪送流体中に内在する異物が前記間隙に
入り込んでメタルシート遊端側の弾性撓み変形が
制限され、弁体を完全閉止させることができなく
て逆にシール性の低下を招くことがあつた。 According to this conventional technology, although high sealing performance can be obtained, foreign matter present in the circulating fluid enters the gap and elastic deformation of the free end side of the metal sheet is restricted, making it impossible to completely close the valve body. On the contrary, there were cases where the sealing performance deteriorated.
本発明は極めて簡単な改造によつて、弁閉じ状
態におけるシール性を高く得られるようにすると
共に、そのシール性能を長期にわたつて良好に維
持できるようにする事を目的とする。 An object of the present invention is to make it possible to obtain high sealing performance in the valve closed state through extremely simple modification, and to maintain the sealing performance well over a long period of time.
まず、本発明の実施例を図面に基いて詳述す
る。 First, embodiments of the present invention will be described in detail based on the drawings.
流体搬送管接続用フランジを備えた弁箱１に、
その流路中心に直交する軸芯を有する軸受２，２
を連設すると共に、流路下流側ほど小径になる環
状のメタルシート３を前記軸受２，２に対して流
路下流側に偏位させて弁箱内部に設け、そして、
前記軸受２，２に弁軸４，４を回転自在に架設す
ると共に、周部に環状のメタルシート５を備えた
円盤状の弁体６を、弁閉じ状態において前記両シ
ート３，５がその全周にわたつて接触するように
前記弁軸４，４に取付け、かつ、一方の軸受２か
ら突出する弁軸４に、流体圧シリンダによる弁体
開閉用の駆動装置７を連動連結して、二次偏芯形
型のバタフライ弁を構成してある。 A valve box 1 equipped with a flange for connecting a fluid conveying pipe,
Bearings 2, 2 having an axis perpendicular to the center of the flow path
are arranged in series, and an annular metal sheet 3 whose diameter becomes smaller toward the downstream side of the flow path is provided inside the valve box so as to be offset toward the downstream side of the flow path with respect to the bearings 2, 2, and
Valve shafts 4, 4 are rotatably installed on the bearings 2, 2, and a disk-shaped valve body 6 is provided with an annular metal seat 5 on the periphery. A drive device 7 for opening and closing the valve body using a fluid pressure cylinder is interlocked and connected to the valve shaft 4, which is attached to the valve shafts 4, 4 so as to be in contact with each other over the entire circumference, and protrudes from one of the bearings 2, A secondary eccentric butterfly valve is constructed.
前記弁体側メタルシート５は、第３図に示すよ
うに、その断面形状をＬ字状に曲げ加工したバネ
鋼等のメタル材から成り、弁閉じ状態における弁
体６の下流側の面に、その面よりも突出させる状
態でＯリング８を埋設すると共に、筒状シート部
分５ａと弁体周縁の間に間隙Ｌを形成する状態
で、かつ、前記Ｏリング８に対して弁体中心側
で、フランジ状シート部分５ｂの一端側をボルト
９により固着し、その遊端側の筒状シート部分５
ａを弁体半径方向に弾性撓み変形可能に設けてあ
る。 As shown in FIG. 3, the valve body side metal sheet 5 is made of a metal material such as spring steel whose cross-sectional shape is bent into an L-shape. The O-ring 8 is buried in such a manner that it protrudes beyond that surface, and a gap L is formed between the cylindrical seat portion 5a and the periphery of the valve body, and the O-ring 8 is placed on the center side of the valve body with respect to the O-ring 8. , one end side of the flange-like seat portion 5b is fixed with a bolt 9, and the cylindrical seat portion 5 on the free end side is fixed.
A is provided so that it can be elastically deformed in the radial direction of the valve body.
そして、この弁体側メタルシート５の弁閉じ状
態における対弁箱側メタルシート３との接触部の
外径を、自由状態において弁箱側メタルシート３
の対弁体側メタルシート５との接触部の内径より
もやや大に設定し、もつて、弁閉じ状態において
前記弁体側メタルシート５を弾性撓み変形させて
前記弁箱側メタルシート３に押圧接触させるよう
にしてある。 Then, the outer diameter of the contact portion of the valve body side metal seat 5 with the counter valve box side metal seat 3 in the valve closed state is the same as that of the valve body side metal seat 5 in the free state.
The inner diameter of the contact portion with the valve body side metal seat 5 is set to be slightly larger than the inner diameter of the contact portion, and the valve body side metal seat 5 is elastically deformed and pressed into contact with the valve body side metal seat 3 in the valve closed state. It is designed to let you do so.
前記弁体側メタルシート５の弾性撓み変形する
筒状シート部分５ａ近くの弁体６外周面に環状凹
入溝１０を形成し、グランドパツキン等の弾性変
位可能な環状部材１１を、前記筒状シート部分５
ａの内周面に接触させる状態で前記凹入溝１０に
嵌入し、もつて、前記弁体側メタルシート５の弾
性撓み変形を許容する状態で前記間隙Ｌ内への異
物の入り込みを阻止するように構成してある。 An annular recessed groove 10 is formed on the outer circumferential surface of the valve body 6 near the elastically deformable cylindrical seat portion 5a of the valve body side metal seat 5, and an annular member 11 capable of elastic displacement such as a gland packing is attached to the cylindrical sheet. part 5
The metal sheet 5 is fitted into the groove 10 in contact with the inner circumferential surface of the valve body 5, thereby preventing foreign matter from entering the gap L while allowing elastic deformation of the valve body side metal sheet 5. It is structured as follows.
尚、前記間隙Ｌ内への異物侵入を阻止する部材
１１として、層状アスベストやゴム、あるいは、
第４図に示すように、断面Ｌ字状の湾曲板バネ等
に変形可能であり、更に、第５図に示すように、
グランドパツキンや層状アスベスト等の阻止部材
１１を筒状シート部分５ａの内周面にほぼ直交さ
せて設ける、あるいは、Ｏリング８に代えてシー
トパツキンを弁体側メタルシート５と弁体６の間
に設ける等、メタルシート５の具体的な取付け構
造を各種変形可能である。 Note that the member 11 for preventing foreign matter from entering the gap L may be made of layered asbestos, rubber, or
As shown in Fig. 4, it can be deformed into a curved leaf spring with an L-shaped cross section, and as shown in Fig. 5,
A blocking member 11 such as a gland packing or layered asbestos is provided to be substantially orthogonal to the inner circumferential surface of the cylindrical seat portion 5a, or a sheet packing is provided between the valve body side metal seat 5 and the valve body 6 in place of the O-ring 8. The specific mounting structure of the metal sheet 5 can be modified in various ways.
更には、弁箱側メタルシート３あるいは両メタ
ルシート３，５の一端側を固着して、そのシート
遊端側を、そのシート取付部材との間に間隙Ｌを
形成する状態で弁体半径方向に弾性撓み変形可能
に構成すると共に、シート遊端側の弾性撓み変形
を許容する状態で前記間隙Ｌ内への異物の入り込
みを阻止する部材１１を設けて、バタフライ弁を
構成するも良く、かつ、そのバタフライ弁とし
て、一次偏芯型のものも対象にできる。 Furthermore, one end side of the valve box side metal seat 3 or both metal seats 3 and 5 is fixed, and the free end side of the seat is mounted in the valve body radial direction with a gap L formed between it and the seat mounting member. A butterfly valve may be configured by providing a member 11 which is configured to be elastically deformable and which prevents foreign matter from entering the gap L while allowing the sheet free end side to be elastically deformed, and As the butterfly valve, a first-order eccentric type can also be used.
以上要するに本発明は、冒記したバタフライ弁
において、前記弁体側メタルシート５及び弁箱側
メタルシート３の少なくとも一方５を、弁体周縁
あるいは弁箱内面との間に間隙Ｌを形成する状態
で一端側を固着して、弁閉じ状態において、メタ
ルシート遊端側を弾性撓み変形により他方のシー
ト３に押圧接触させるべく構成すると共に、前記
間隙Ｌへの異物の入り込みを阻止する部材１１
を、前記少なくとも一方のメタルシート５の弾性
撓み変形を許容する状態で設けてある事を特徴と
する。 In summary, the present invention provides the above-mentioned butterfly valve in which at least one of the valve body side metal sheet 5 and the valve body side metal seat 3 is arranged such that a gap L is formed between the valve body periphery or the valve body inner surface. A member 11 whose one end is fixed so that the free end of the metal sheet is brought into pressure contact with the other sheet 3 by elastic deformation when the valve is closed, and which prevents foreign matter from entering the gap L.
are provided in a state that allows elastic deformation of at least one of the metal sheets 5.
即ち、耐熱性並びに耐摩耗性に富むメタルタツ
チのバタフライ弁において、そのメタルシート
３，５の少なくとも一方を弾性撓み変形させて押
圧接触させる事により、弁閉じ状態において高い
シール性を得られるものでありながら、前記間隙
Ｌへの異物の入り込み阻止部材１１を設ける事に
よつてシール性の高い弁閉じ状態を長期にわたつ
て良好に維持させる事ができ、全体として、簡単
な改造によつて使用面で極めて有用なバタフライ
弁を提供できるようになつた。 That is, in a metal touch butterfly valve that is highly heat resistant and wear resistant, by elastically deforming at least one of the metal sheets 3 and 5 and bringing them into pressure contact, high sealing performance can be obtained in the valve closed state. However, by providing the member 11 to prevent foreign matter from entering the gap L, it is possible to maintain the valve closed state with high sealing performance over a long period of time. We are now able to provide extremely useful butterfly valves.
図面は本発明に係るバタフライ弁の実施例を示
し、第１図は全体縦断正面図、第２図は一部を破
断した全体平面図である。第３図は弁体側メタル
シートの断面図であり、第４図及び第５図は夫々
変形構造の断面図である。
１……弁箱、３……弁箱側メタルシート、５…
…弁体側メタルシート、６……円盤状回転弁体、
１１……異物入り込み阻止部材、Ｌ……間隙。
The drawings show an embodiment of the butterfly valve according to the present invention, with FIG. 1 being an overall longitudinal sectional front view, and FIG. 2 being a partially cutaway overall plan view. FIG. 3 is a sectional view of the metal sheet on the valve body side, and FIGS. 4 and 5 are sectional views of deformed structures, respectively. 1... Valve box, 3... Valve box side metal sheet, 5...
... Valve body side metal seat, 6... Disc-shaped rotating valve body,
11... Member for preventing foreign matter from entering, L... Gap.
Claims (1)
弁箱１に付設のメタルシート３を、弁閉じ状態で
接触させるべく構成したバタフライ弁であつて、
前記弁体側メタルシート５及び弁箱側メタルシー
ト３の少なくとも一方５を、弁体周縁あるいは弁
箱内面との間に間隙Ｌを形成する状態で一端側を
固着して、弁閉じ状態において、メタルシート遊
端側を弾性撓み変形により他方のシート３に押圧
接触させるべく構成すると共に、前記間隙Ｌへの
異物の入り込みを阻止する部材１１を、前記少な
くとも一方のメタルシート５の弾性撓み変形を許
容する状態で設けてあるバタフライ弁。1. A butterfly valve configured so that a metal seat 5 attached to a disc-shaped rotary valve body 6 and a metal seat 3 attached to a valve box 1 are brought into contact with each other in the valve closed state,
At least one end of the valve body side metal sheet 5 and the valve body side metal sheet 3 is fixed at one end with a gap L formed between the valve body periphery or the valve body inner surface, and when the valve is closed, the metal The free end side of the sheet is configured to be pressed into contact with the other sheet 3 by elastic deformation, and the member 11 for preventing foreign matter from entering the gap L is configured to allow elastic deformation of at least one metal sheet 5. A butterfly valve that is installed in a state where
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP950881A JPS57124164A (en) | 1981-01-23 | 1981-01-23 | Butterfly valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP950881A JPS57124164A (en) | 1981-01-23 | 1981-01-23 | Butterfly valve |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS57124164A JPS57124164A (en) | 1982-08-02 |
| JPS6125947B2 true JPS6125947B2 (en) | 1986-06-18 |
Family
ID=11722179
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP950881A Granted JPS57124164A (en) | 1981-01-23 | 1981-01-23 | Butterfly valve |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS57124164A (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007152297A (en) * | 2005-12-07 | 2007-06-21 | Max Co Ltd | Lid closing structure, and garbage treatment apparatus |
| KR100963117B1 (en) | 2009-11-06 | 2010-06-15 | 서광공업 주식회사 | Butterfly valve |
-
1981
- 1981-01-23 JP JP950881A patent/JPS57124164A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS57124164A (en) | 1982-08-02 |
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