JPS61256082A - Valve with fluid buffering part - Google Patents
Valve with fluid buffering partInfo
- Publication number
- JPS61256082A JPS61256082A JP9732785A JP9732785A JPS61256082A JP S61256082 A JPS61256082 A JP S61256082A JP 9732785 A JP9732785 A JP 9732785A JP 9732785 A JP9732785 A JP 9732785A JP S61256082 A JPS61256082 A JP S61256082A
- Authority
- JP
- Japan
- Prior art keywords
- valve
- fluid
- buffering part
- outlet side
- slits
- 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
- F16K47/00—Means in valves for absorbing fluid energy
- F16K47/08—Means in valves for absorbing fluid energy for decreasing pressure or noise level and having a throttling member separate from the closure member, e.g. screens, slots, labyrinths
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Details Of Valves (AREA)
Abstract
Description
【発明の詳細な説明】
（１）発明の目的
産業上の利用分野
本発明はバタフライ弁、コック、ポール弁その他のバル
ブに関する。DETAILED DESCRIPTION OF THE INVENTION (1) Object of the Invention Industrial Application Field The present invention relates to butterfly valves, cocks, pawl valves and other valves.
従来の技術
従来、バルブの出口側に流体の緩衝部を設けたものはな
い、バルブ自体の構造について、消音作用を目的として
、ロータリー制御バルブに消音チャンバを設けたものが
、特公昭５１３−３０１３５０号公報で開示されている
。2. Prior Art Until now, there has been no valve with a fluid buffer provided on the outlet side. Regarding the structure of the valve itself, a rotary control valve provided with a silencing chamber for the purpose of silencing effect was disclosed in Japanese Patent Publication No. 513-301350. It is disclosed in the publication no.
発明が解決しようとする問題点
バタフライ弁、コックその他のバルブにおいて、弁の開
度如何によっては弁体からの流体の流れにより出口側で
不快な騒音が発生することがある。Problems to be Solved by the Invention In butterfly valves, cocks, and other valves, depending on the opening degree of the valve, unpleasant noise may be generated on the outlet side due to the flow of fluid from the valve body.
特に、開度を絞った場合、キャビテーションにより二ロ
ージョン、騒音、振動が発生し、また流出部で高流速と
なり騒音を発生していた。In particular, when the opening was narrowed, cavitation caused noise, vibration, and high flow velocity at the outlet, causing noise.
本発明はこのような騒音を防止することを目的としたも
のである。The present invention aims to prevent such noise.
従来例の特公昭５８−３０８５０号公報に開示された技
術は、バルブ本体の構造中にボアの壁を取り巻く消音チ
ャンバを設けたものであるが、本発明は、このような複
雑な構成を採ることなく、バルブの出口側に消音用の流
体緩衝部を提供しようとするものである。The conventional technique disclosed in Japanese Patent Publication No. 58-30850 is one in which a silencing chamber surrounding the wall of the bore is provided in the structure of the valve body, but the present invention adopts such a complicated structure. It is intended to provide a fluid buffer for sound deadening on the outlet side of the valve.
（２）発明の構成
問題点を解決するための手段
本発明は上記目的達成のため、バルブの流路内の入口側
または出口側の両方或いはいずれか一方にスリット、円
孔その細波れを整える流体緩衝部を少なくとも１カ所設
けた流体緩衝部を有するノくルブとした。(2) Means for Solving the Constituent Problems of the Invention In order to achieve the above object, the present invention arranges slits, circular holes, and slits on the inlet side and/or outlet side of the flow path of the valve. The knob is provided with a fluid buffer in which at least one fluid buffer is provided.
作用
バルブの出口側にスリット、円孔その他の緩衝部が存在
するので、バルブ本体の開度如何に拘らず、バルブ本体
を出た流体の乱れと強い衝撃作用が緩和され、特に流出
角度を拡大することにより、キャビテーシ璽ンが減少す
ることになる。Since there are slits, circular holes, and other buffers on the outlet side of the working valve, the turbulence and strong impact of the fluid exiting the valve body are alleviated, regardless of the opening degree of the valve body, and the outflow angle is especially expanded. By doing so, cavitation is reduced.
従って、流体はこの部分で整流されスリットや円孔を通
って整然と出口へ向い、異常な又は不快音の発生を防止
することができるようになった。Therefore, the fluid is rectified in this part and directed to the outlet in an orderly manner through the slits and circular holes, making it possible to prevent abnormal or unpleasant noises from occurring.
勿論、流体の通過に大きい抵抗を生じてはならない。Of course, it must not create a large resistance to the passage of fluid.
尚、流体の緩衝部は、使用される流体の種類や流量によ
って前記整流作用と緩衝作用が十分に発揮できるよう、
１カ所に限らず、それ以上の複数カ所に設置すること、
又緩衝部に設けたスリットや円孔の大きさ等を設定する
ことができる。In addition, the fluid buffer section is designed so that the above-mentioned rectifying effect and buffering effect can be sufficiently exerted depending on the type and flow rate of the fluid used.
Installation not only in one location but in multiple locations,
Also, the size of the slit or circular hole provided in the buffer section can be set.
又、図示していないが、流体緩衝部は１カ所に限らず、
２段、３段と並列に並べることも有力である。Although not shown, the fluid buffer portion is not limited to one location.
It is also effective to arrange them in parallel in two or three stages.
実施例
以下、実施例として示したポール弁につき説明する。第
１図において、１は弁箱、２は弁体、３は弁座、４は弁
棒で、弁体２を開閉する。５は流体の流路、６は流体緩
衝部である。又、第２図において、７は開口部である。EXAMPLE A pole valve shown as an example will be explained below. In FIG. 1, 1 is a valve box, 2 is a valve body, 3 is a valve seat, and 4 is a valve stem, which opens and closes the valve body. 5 is a fluid flow path, and 6 is a fluid buffer section. Further, in FIG. 2, 7 is an opening.
第３図〜第８図は流体緩衝部の各種類を示すもので、第
３図はスリットを格子８状に設けたもの、第４図は円孔
９、第５図は同心円孔１０、第６図は棒材１１を格子状
に連結して配列したもの、第７図はさらに他の流体緩衝
体１２の断面側面図、第８図は他の流体緩衝部１３の断
面側面図で中央部に凹部を形成したものを示す、尚、ス
リットや円孔の形体は上記の例に限らず、例えばスリッ
トの大小１間隔、数量等は取扱う流体の種類により変化
させる。Figures 3 to 8 show various types of fluid buffers. Figure 3 shows one with slits arranged in a grid 8, Figure 4 shows circular holes 9, and Figure 5 shows concentric holes 10 and 8. 6 shows the bars 11 connected and arranged in a grid, FIG. 7 is a cross-sectional side view of another fluid buffer 12, and FIG. 8 is a cross-sectional side view of another fluid buffer 13, showing the central part. Note that the shape of the slits and circular holes is not limited to the above example, and for example, the size, spacing, number, etc. of the slits may be changed depending on the type of fluid to be handled.
第６図は流体を緩衝させる単体の流体緩衝部としての棒
材１１を格子状に配列したものであるが。In FIG. 6, rods 11 are arranged in a lattice shape as a single fluid buffer for buffering fluid.
緩衝部は同一形状のものでもよく、又板等の材料より切
欠く場合と流体緩衝部材を単体で作った後で組合す場合
がある。尚、流路に配設される流体緩衝部は１枚でも複
数枚でもよい。The buffer portion may have the same shape, and may be cut out from a material such as a plate, or may be assembled after the fluid buffer member is made singly. Note that the number of fluid buffers disposed in the flow path may be one or more.
同一形状のものを組合せても、異形状のものを組合せて
もよい、流路の全面または一部分のみに取付けてもよい
、又、取付は溶接、接着、圧入、ボルト締付、緩衝部と
弁箱にねじ加工してねじ込む等で取付けられる。又、図
は流出側のみに取付けているが流入側、流出側の両方ま
たは一方に取付けてもよい。Items of the same shape or different shapes may be combined.It may be installed on the entire surface or only a portion of the flow path.In addition, installation may be performed by welding, gluing, press-fitting, bolt tightening, buffer parts and valves. It can be attached by machining and screwing into the box. Further, although the figure shows the device being attached only to the outflow side, it may be attached to both or one of the inflow side and the outflow side.
以下、スリットを用いた緩衝部を設置した場合につき、
データを示す。Below, when installing a buffer section using slits,
Show data.
バルブ ：日数製作所製
オリフロー（商品名）
コントロールバルブ
流体 ：天然ガス
圧力 ６ Ｋｇ／ｃｍ″
差圧 １〜５ Ｋｇ／ｃｒｎ’
バルブ開度を６０％以下に絞った場合、１２３ｄＢの騒
音が発生した。Valve: Oriflow (trade name) manufactured by Himuka Seisakusho Control valve Fluid: Natural gas Pressure: 6 Kg/cm'' Differential pressure: 1 to 5 Kg/crn' When the valve opening was reduced to 60% or less, 123 dB of noise was generated.
流体緩衝部 ：径 １００ ｍｍスリット巾
４＋ａｍ
間隔 １１箇腸
数 、９本
バルブ弁体からの設置場所：
バルブ弁体からの距離 ８８ｍｍ １２２ｄＢ２５
ｍｍ １２０ｄＢ
５層ｍ １１５ｄＢ
上記実施例で示されるように、流体緩衝部を設置した場
合、従来１２３ｄＢの騒音が生じていたものが、 １１
５ｄＢまで低下できることが判明した。尚。Fluid buffer: diameter 100 mm slit width
4+am Spacing 11 points, 9 valves Installation location from the valve body: Distance from the valve body 88 mm 122 dB25
mm 120 dB 5 layers m 115 dB As shown in the above example, when a fluid buffer section is installed, the conventional noise of 123 dB becomes 11
It was found that the reduction could be up to 5 dB. still.
流体緩衝部の設置場所について、バルブ弁体に接近した
方が効果的であった。Regarding the installation location of the fluid buffer, it was more effective to place it closer to the valve body.
（３）発明の効果
本発明はバルブの出口側に流体緩衝部を設けたことによ
り、ボール本体から絞られて出てきた流体から生じる騒
音を防止することができた。(3) Effects of the Invention In the present invention, by providing a fluid buffer on the outlet side of the valve, noise generated from the fluid squeezed out from the ball body can be prevented.
第１図は本発明の１実施例を示す断面図、第２図は流体
の流れを示す断面図、第３図〜第８図は流体緩衝部の各
種類を示す正面図と断面図である。
代理人 弁理士 大 島 −公
第１図
第２図
第３図 第４図
Ｉ！６図 ｍ７図
第５図
ｆＪａ図FIG. 1 is a sectional view showing one embodiment of the present invention, FIG. 2 is a sectional view showing fluid flow, and FIGS. 3 to 8 are front views and sectional views showing various types of fluid buffer sections. . Agent Patent Attorney Oshima -Ko Figure 1 Figure 2 Figure 3 Figure 4 I! Figure 6 m7 Figure 5 fJa diagram
Claims (1)
れか一方にスリット、円孔その他流れを整える流体緩衝
部を少なくとも１カ所設けたことを特徴とする流体緩衝
部を有するバルブ。1. A valve having a fluid buffer, characterized in that at least one fluid buffer such as a slit, a circular hole, or the like for adjusting the flow is provided on the inlet side and/or the outlet side of the flow path of the valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9732785A JPS61256082A (en) | 1985-05-07 | 1985-05-07 | Valve with fluid buffering part |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9732785A JPS61256082A (en) | 1985-05-07 | 1985-05-07 | Valve with fluid buffering part |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS61256082A true JPS61256082A (en) | 1986-11-13 |
Family
ID=14189388
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP9732785A Pending JPS61256082A (en) | 1985-05-07 | 1985-05-07 | Valve with fluid buffering part |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS61256082A (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS63312591A (en) * | 1987-06-15 | 1988-12-21 | Kubota Ltd | Rotary valve |
| JPH01279172A (en) * | 1988-05-02 | 1989-11-09 | Takagi Ind Co Ltd | Flow control valve |
| JPH0236664U (en) * | 1988-09-01 | 1990-03-09 | ||
| JPH03386U (en) * | 1989-05-26 | 1991-01-07 | ||
| JPH05187576A (en) * | 1992-01-08 | 1993-07-27 | Ntc Kogyo Kk | Rubber type flow rate regulating valve |
| WO2002037009A3 (en) * | 2000-10-31 | 2002-08-22 | Pratt & Whitney Canada | Butterfly valve noise suppressor |
| JP2006118664A (en) * | 2004-10-25 | 2006-05-11 | Yamatake Corp | Low noise rotary valve |
| JP2010014280A (en) * | 2009-10-19 | 2010-01-21 | Yamatake Corp | Low noise rotary valve |
-
1985
- 1985-05-07 JP JP9732785A patent/JPS61256082A/en active Pending
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS63312591A (en) * | 1987-06-15 | 1988-12-21 | Kubota Ltd | Rotary valve |
| JPH01279172A (en) * | 1988-05-02 | 1989-11-09 | Takagi Ind Co Ltd | Flow control valve |
| JPH0524392B2 (en) * | 1988-05-02 | 1993-04-07 | Takagi Sangyo Kk | |
| JPH0236664U (en) * | 1988-09-01 | 1990-03-09 | ||
| JPH03386U (en) * | 1989-05-26 | 1991-01-07 | ||
| JPH05187576A (en) * | 1992-01-08 | 1993-07-27 | Ntc Kogyo Kk | Rubber type flow rate regulating valve |
| WO2002037009A3 (en) * | 2000-10-31 | 2002-08-22 | Pratt & Whitney Canada | Butterfly valve noise suppressor |
| US6439540B1 (en) | 2000-10-31 | 2002-08-27 | Pratt & Whitney Canada Corp. | Butterfly valve noise suppressor |
| JP2006118664A (en) * | 2004-10-25 | 2006-05-11 | Yamatake Corp | Low noise rotary valve |
| JP2010014280A (en) * | 2009-10-19 | 2010-01-21 | Yamatake Corp | Low noise rotary valve |
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