JPS61153068A - Sealing member for valve - Google Patents
Sealing member for valveInfo
- Publication number
- JPS61153068A JPS61153068A JP27535384A JP27535384A JPS61153068A JP S61153068 A JPS61153068 A JP S61153068A JP 27535384 A JP27535384 A JP 27535384A JP 27535384 A JP27535384 A JP 27535384A JP S61153068 A JPS61153068 A JP S61153068A
- Authority
- JP
- Japan
- Prior art keywords
- valve
- rubber
- sealing member
- sealing material
- reinforcing fibers
- 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
Links
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
- F16K1/32—Details
- F16K1/34—Cutting-off parts, e.g. valve members, seats
- F16K1/46—Attachment of sealing rings
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Lift Valve (AREA)
Abstract
Description
【発明の詳細な説明】
産業上の利用分野
本発明は、バタフライ弁などに使用される弁用シール材
に関するものである。DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to a valve sealing material used in butterfly valves and the like.
従来の技術
第８図、第９図に示す従来のバタフライ弁（ロ）は、一
対の配管四（至）間に接続して配置される弁箱ｑ４と、
この弁？Ｉ（Ｊ◆と一体的にして内方に突設されるリン
ク状の弁座（ト）と、この弁座（至）の下流側の面に取
付けたり：／クジ状シール材四と、軸（ロ）を介して弁
箱ｑ◆内に揺妨自在に収付けられ且つシール材Ｑ時に対
して接当離間自在な弁体（７）とにより構成される。BACKGROUND OF THE INVENTION A conventional butterfly valve (b) shown in FIGS. 8 and 9 includes a valve box q4 connected to and arranged between a pair of pipes,
This valve? A link-shaped valve seat (G) that is integrally provided with I (J◆ and protrudes inward), and is attached to the downstream surface of this valve seat (To): / wedge-shaped sealing material 4, and a shaft. The valve body (7) is housed in the valve box q♦ via (b) in a freely swingable manner, and is movable into contact with and away from the sealing material Q.
前記シール材（７）はＮＢＲにトリルゴム） 、ＣＲ−
５ｊム、天然ゴムなどのｊム材料からなり、サシヂイン
タした粗面（ｌｓａ）に化ゴムを貼り、セして熱加流す
ることにより取付けていた。The sealing material (7) is NBR (trill rubber), CR-
It is made of rubber material such as rubber or natural rubber, and is attached by pasting rubberized rubber on the roughened surface (lsa), setting it, and heating it.
発明が解決しようとする問題点
上記した従来構造による七、弁体（至）を開動させた高
速流水時に、シール材（至）の近くで中セピテーション
が発生することから、この中ヤピテーショシによってシ
ール材α・の剥離が生じて−た。その原因は剥離強度の
不足である。したがって長期間に亘っての使用が不可能
となり、はり代えなどの補修をたびたび行なわなければ
ならなかった。すなわち従来構造では、剥離強度（ＪＩ
Ｓ＃ＪＩ！試験）は劣化なしの条件下で２０〜８０Ｋｐ
ｆ／２Ｓｘ幅であった。Problems to be Solved by the Invention 7. With the above-mentioned conventional structure, when the valve body (to) is opened and water flows at high speed, medium sepitation occurs near the sealing material (to). Peeling of material α. occurred. The cause is insufficient peel strength. Therefore, it became impossible to use it for a long period of time, and repairs such as replacement of beams had to be carried out frequently. In other words, in the conventional structure, the peel strength (JI
S#JI! test) is 20-80Kp under no deterioration conditions.
The width was f/2Sx.
また劣化あシの条件下では、材料により多少異なるが剥
離強度はよシ低下するものであり、一般的にｆｌｌＧ年
経過後に８０％程度になる。Furthermore, under conditions of deteriorated reeds, the peel strength decreases considerably, although it varies somewhat depending on the material, and generally decreases to about 80% after 3 years have elapsed.
問題を解決するための手段
上記問題点を解決するために本発明における弁用シール
材は、１６体内に強化＃ｌ！維を内在させて構成してい
る。Means for Solving the Problems In order to solve the above problems, the valve sealing material of the present invention has 16 internally reinforced #l! It is composed of internal fibers.
かかる零発へによると、ｊム体剛性よりも強化繊維剛性
が大であることから、シール材にかかる荷重は強化繊維
に加わって分散されることになる。According to this method, since the stiffness of the reinforcing fibers is greater than the stiffness of the body, the load applied to the sealing material is distributed by being added to the reinforcing fibers.
実施例
以下に本発明の一実施例を第１図〜第６図に基づいて説
明する。EXAMPLE An example of the present invention will be described below with reference to FIGS. 1 to 6.
（１）は弁用シール材で、弁箱（２）側の弁座（３）に
形成し九粗面（８ａ）に接着剤（４）を介して貼付けら
れる。(1) is a valve sealing material, which is formed on the valve seat (3) on the side of the valve body (2) and is pasted to the nine rough surfaces (8a) via an adhesive (4).
この弁用シール材（１）は複合ゴムで、ＮＢＲ，ＣＲ−
５ｊム、天然ゴムなどのゴム材料からなるゴム体（５）
内に、ガラス繊維やカーボン繊維などの強化繊維（６）
を内在させて構成している。ここで強化繊維（６）は、
表面側からの距Ｍｌ（ｂ）が裏面側からの距離・（ｔｌ
）に対して［ｔｓ＞ ｂｌ になるように内在され、こ
れにより応力分散を良好にしている。また強化繊維（６
）としては、第２図に示すように編んだもの、或いは第
８図に示すように編んで結線（７）シたものなどが採用
され、結線形式のものは剪断力をよシ強くできる。ｕ＊
Ｆｉ弁体を示す。This valve sealing material (1) is made of composite rubber, NBR, CR-
5j rubber body (5) made of rubber material such as natural rubber
Inside, reinforcing fibers such as glass fiber and carbon fiber (6)
It is constructed by incorporating it. Here, the reinforcing fiber (6) is
The distance Ml(b) from the front side is the distance from the back side・(tl
) with respect to [ts> bl, thereby improving stress distribution. In addition, reinforcing fiber (6
) as shown in Fig. 2, or as shown in Fig. 8, knitted and connected (7), etc., and the connected type can have a stronger shearing force. u*
Fi valve body is shown.
前記弁用シール材（１）の弁座（３）に対する取付けは
次のようにして行なわれる。すなわち先ず第４図に示す
ように、弁座（３）の下流側の而をサンヂインタにより
粗面（３ａ）に形成すると共に、該粗面（３ａ）をプラ
マー匙理する。次いで加硫済みの複合ゴムである弁用シ
ール材（１）を、第５図に示すように接着剤（４）を介
して貼付ける。そして第６図に示すように環状の圧力容
器（８）をセットし、圧力供給（９）により１〜２Ｋｇ
ｔ７−で均一に加圧したのち硬化させる。The valve sealing material (1) is attached to the valve seat (3) as follows. That is, first, as shown in FIG. 4, the downstream side of the valve seat (3) is formed into a rough surface (3a) using a sand inter, and the rough surface (3a) is also treated with a plummer. Next, a valve sealing material (1), which is a vulcanized composite rubber, is attached via an adhesive (4) as shown in FIG. Then, as shown in Figure 6, an annular pressure vessel (8) is set and the pressure is supplied (9) to a pressure of 1 to 2 kg.
After applying pressure uniformly at t7-, it is cured.
このような取付は方法では、従来の生ゴム加工（貼付は
後に加硫）と異なり、加工済みの弁用シール材（１）を
単純に二次接着するだけで、従来に比べて剥離強度が約
３倍になるなど十分な強度を得ることができる。）
次に、第７図に基づいて、従来のゴム体囚と本発明構成
の複合ゴム体（６）との引張Ｄ （Ｑに対する応力分布
を比較して見る。ここで両ｊム体ＩＡ）（Ｂ）は厚さや
形状におりて同一であり、またへ−ス０に同条件で貼付
けである。［Ｆ］点の最大値で引張破断力が定【る、何
故ならば、破断力は分布の面積であるからである。また
（ト）点は材料によって定まる。Unlike conventional raw rubber processing (applying is then vulcanized), this type of installation involves simply secondary adhesion of the processed valve sealing material (1), which has a peel strength of about 100% compared to conventional methods. Sufficient strength can be obtained, such as triple the strength. ) Next, based on FIG. 7, we will compare the stress distribution with respect to the tensile force D (Q) between the conventional rubber body and the composite rubber body (6) constructed according to the present invention.Here, both bodies IA) (B) has the same thickness and shape, and was attached to base 0 under the same conditions. The tensile breaking force is determined by the maximum value at point [F], because the breaking force is the area of the distribution. Also, (g) the point is determined by the material.
さらに剪断は（Ｑ点で分布する。従来の応力分布で見る
限り、
〉
ＳＩ＜ ”≧Ｓ。Furthermore, the shear is distributed at the Q point.As far as the conventional stress distribution is concerned, 〉SI＜''≧S.
の関係で、どこがどんな理由でこわれる力為理屏できる
が、ゴムの特性から肉厚でしかカバーできない。これに
対して複合１６体（６）によると、ゴム体剛性（強化繊
維剛性
で＃］！ｆｉ強化繊維に加わるから、すなわち強化繊維
がｔ＜筋と考えられるから荷重が分散されることになる
。その結果、応力分布は
５１（ＳＩ
Ｓｔ ＜＜ ５２
Ｓ３（Ｓｓ
となる。Due to the characteristics of rubber, it is possible to cover the force that can cause it to break anywhere and for any reason, but due to the characteristics of rubber, this can only be covered by thick walls. On the other hand, according to Composite 16 (6), the rubber body stiffness (reinforcing fiber stiffness #)!fi is added to the reinforcing fibers, that is, the reinforcing fibers are considered to be t<muscles, so the load is distributed. As a result, the stress distribution becomes 51 (SI St << 52 S3 (Ss).
第１図に示すように、強化繊維（６）の内在位置は応力
分散から
ｔ＋ ＞ Ｌｘ
にしである。ここで厚さ■がシとして剥離試験をして見
るに、本発明製品がガラス繊維を採用して、
ｔＩ中ＯＳ国
ｔＩ中ｕ国
のときに９０に１ｆ／２Ｓｅｓｔ以上であるのに対して
、従来品の
Ｔ ＝ ２５ ｃｍ
のときには８０Ｋｙｆ／２ｊｃｓｓであシ、本発明製品
が８倍以上となった。ここで（ｔｔ）Ｆｉシール面の弾
力性のため必要であり、また（１１）が小さくなるほど
強度が高くなる。薄肉形式のときの実証では、ｔｓ
：ｂ ＃：ｔ４：１
程度が良い。As shown in FIG. 1, the inner position of the reinforcing fibers (6) is t+>Lx from the stress distribution. Here, when performing a peel test with the thickness ■, the product of the present invention adopts glass fiber and has a thickness of 90 to 1f/2Sest or more when the product is made of glass fiber. , when T = 25 cm of the conventional product, it was 80Kyf/2jcss, whereas the product of the present invention had more than 8 times as much. Here, (tt)Fi is necessary for the elasticity of the sealing surface, and the smaller (11), the higher the strength. In the demonstration of thin wall type, ts
:b #:t4:1 is good.
発明の効果
上記構成の本発明における弁用シール材は、ｊム体剛性
よシも強化繊維剛性が大であることから、シール材にか
かる荷重は強化繊維に加わって分散することができ、こ
れにより剥離強度を上げることができる。Effects of the Invention In the valve sealing material of the present invention having the above structure, the stiffness of the reinforcing fibers is greater than the stiffness of the body, so the load applied to the sealing material can be distributed by being added to the reinforcing fibers. The peel strength can be increased by this.
第１図〜第７図は本発明の一実施例を示し、第１図は取
付は状態での断面図、第２図、第８図は強化繊維の正面
図、第４図〜第６図は取付は工程を示す説明図、第７図
は従来品との比較図、第８図、第９図は従来例を示し、
第８図Ｆｉ断面図、第９図は第８図における要部拡大図
である。
（１）・・・弁用シール材、（２）・・・弁箱、（３）
・・・弁座、（８ａ）・・・粗面、（４）・・・接着剤
、（５）・・・ｊム体、（６）・・・強化繊維、（７）
・・・結線、（８）・・・圧力容器、（９）・・・圧力
供給、αＯ・・・弁体Figures 1 to 7 show an embodiment of the present invention, Figure 1 is a cross-sectional view of the installed state, Figures 2 and 8 are front views of reinforcing fibers, and Figures 4 to 6. is an explanatory diagram showing the installation process, Figure 7 is a comparison diagram with a conventional product, Figures 8 and 9 are conventional examples,
FIG. 8 is a cross-sectional view of Fi, and FIG. 9 is an enlarged view of the main part in FIG. (1) Valve sealing material, (2) Valve box, (3)
... Valve seat, (8a) ... Rough surface, (4) ... Adhesive, (5) ... J-shaped body, (6) ... Reinforcing fiber, (7)
... Wiring, (8) ... Pressure vessel, (9) ... Pressure supply, αO ... Valve body
Claims (1)
シール材であつて、ゴム体内に強化繊維を内在させて構
成したことを特徴とする弁用シール材。1. A valve sealing material that is attached to the valve box side and allows the valve body to freely come into contact with and separate from the valve body, and is characterized in that the valve sealing material is constructed by incorporating reinforcing fibers within the rubber body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP27535384A JPS61153068A (en) | 1984-12-25 | 1984-12-25 | Sealing member for valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP27535384A JPS61153068A (en) | 1984-12-25 | 1984-12-25 | Sealing member for valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS61153068A true JPS61153068A (en) | 1986-07-11 |
Family
ID=17554287
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP27535384A Pending JPS61153068A (en) | 1984-12-25 | 1984-12-25 | Sealing member for valve |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS61153068A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1369559A3 (en) * | 2002-06-06 | 2006-04-05 | Pierburg GmbH | Valve device |
| CN107795700A (en) * | 2016-08-31 | 2018-03-13 | 精工爱普生株式会社 | The manufacture method of valve system and valve system |
-
1984
- 1984-12-25 JP JP27535384A patent/JPS61153068A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1369559A3 (en) * | 2002-06-06 | 2006-04-05 | Pierburg GmbH | Valve device |
| CN107795700A (en) * | 2016-08-31 | 2018-03-13 | 精工爱普生株式会社 | The manufacture method of valve system and valve system |
| CN107795700B (en) * | 2016-08-31 | 2021-01-12 | 精工爱普生株式会社 | Valve mechanism and method for manufacturing valve mechanism |
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