JPH0218468B2 - - Google Patents
Info
- Publication number
- JPH0218468B2 JPH0218468B2 JP13675583A JP13675583A JPH0218468B2 JP H0218468 B2 JPH0218468 B2 JP H0218468B2 JP 13675583 A JP13675583 A JP 13675583A JP 13675583 A JP13675583 A JP 13675583A JP H0218468 B2 JPH0218468 B2 JP H0218468B2
- Authority
- JP
- Japan
- Prior art keywords
- cage
- valve
- valve plug
- groove
- plug
- 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
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
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Sliding Valves (AREA)
- Details Of Valves (AREA)
Description
【発明の詳細な説明】
〔発明の技術分野〕
本発明は、ケージ内を摺動する弁プラグの振動
を防止する機能を備えたケージ弁に関する。DETAILED DESCRIPTION OF THE INVENTION [Technical Field of the Invention] The present invention relates to a cage valve having a function of preventing vibration of a valve plug sliding inside the cage.
従来、この種のケージ弁は第１図に示すように
構成されており、これを同図に基づいて概略説明
すると、１は円筒状のケージで、周壁２に流体通
過用窓３が複数個穿設されており、この窓３の上
下には口径が異なる弁座４，５が設けられてい
る。６は弁軸７により上下方向に摺動する弁プラ
グで、前記ケージ１内に進退自在に配設されてお
り、外周面には前記両弁座４，５にそれぞれ着座
可能な着座部８，９が設けられている。これによ
り前記流体通過用窓３の開口面積を変化させ流量
制御が行われる。１０は前記弁プラグ６の上下を
連通する貫通孔で、弁プラグ６上部に穿設されて
おり、これによつて上下両側に生じる圧力差を小
さくし、前記弁軸７を介して隔絶された位置に配
設される駆動部（図示せず）にかゝる負荷を減少
させている。１１は前記ケージ１内側に開口する
環状溝で、ケージ１の内周面における前記上側の
弁座４と窓３間に設けられており、ケージ１の内
周面に弁プラグ６の外周面間に侵入する流体が圧
力降下して上部に浸透しないように構成されてい
る。これによりケージ１内における弁プラグ６の
振動を防止している。
Conventionally, this type of cage valve has been constructed as shown in FIG. A hole is provided, and valve seats 4 and 5 having different diameters are provided above and below this window 3. Reference numeral 6 denotes a valve plug that slides vertically on a valve shaft 7, and is disposed in the cage 1 so as to be able to move forward and backward, and has seating portions 8 on its outer circumferential surface that can be seated on both the valve seats 4 and 5, respectively. 9 is provided. Thereby, the opening area of the fluid passage window 3 is changed to control the flow rate. Reference numeral 10 denotes a through hole that communicates between the upper and lower parts of the valve plug 6, which is bored in the upper part of the valve plug 6, thereby reducing the pressure difference generated on both the upper and lower sides, and separating the two through the valve shaft 7. This reduces the load on a drive unit (not shown) disposed at the location. 11 is an annular groove that opens inside the cage 1, and is provided between the upper valve seat 4 and the window 3 on the inner peripheral surface of the cage 1, and is provided between the outer peripheral surface of the valve plug 6 on the inner peripheral surface of the cage 1. The structure is such that fluid entering the tank will not seep into the top due to a pressure drop. This prevents the valve plug 6 from vibrating within the cage 1.
かかるに、従来のケージ弁において、弁プラグ
６が僅かに上昇した小開度時には弁プラグ６の振
動を防止することができても、全開度時あるいは
ケージ１の内周面と弁プラグ６の外周面間に高差
圧の流体が侵入した時には、その浸動を防止する
ことができないという不都合がある。 Therefore, in the conventional cage valve, although it is possible to prevent vibration of the valve plug 6 when the valve plug 6 is slightly raised at a small opening, when the valve plug 6 is fully opened or when the inner peripheral surface of the cage 1 and the valve plug 6 are When fluid with a high differential pressure enters between the outer circumferential surfaces, there is a problem in that it is impossible to prevent the fluid from penetrating.
本発明はこのような事情に鑑みなされたもの
で、ケージの片側内周面に溝を設けるというきわ
めて簡単な構成により、ケージ内における弁プラ
グの振動を確実に防止できるケージ弁を提供する
ものである。以下、その構成等を図に示す実施例
によつて詳細に説明する。
The present invention has been made in view of the above circumstances, and provides a cage valve that can reliably prevent vibration of the valve plug within the cage with an extremely simple structure in which a groove is provided on the inner circumferential surface of one side of the cage. be. Hereinafter, the configuration and the like will be explained in detail by referring to embodiments shown in the drawings.
第２図は本発明に係るケージ弁を示す断面図、
第３図は第２図の―断面図で、これらの図に
おいて第１図と同一の部材については同一の符号
を付し、詳細な説明は省略する。同図において、
２１は前記ケージ１の周壁２側に開口する溝で、
ケージ１の片側内周面であつて、前記両弁座４，
５間に設けられている。これにより、弁プラグ６
の外周面とケージ１の片側内周面間に形成された
間隙h1は、溝２１と反対側に形成された間隙h2よ
り広く設定される。
FIG. 2 is a sectional view showing a cage valve according to the present invention;
FIG. 3 is a cross-sectional view of FIG. 2. In these figures, the same members as in FIG. 1 are denoted by the same reference numerals, and detailed explanations are omitted. In the same figure,
21 is a groove opening on the peripheral wall 2 side of the cage 1;
On the inner peripheral surface of one side of the cage 1, both the valve seats 4,
It is located between 5. This allows the valve plug 6
The gap h 1 formed between the outer circumferential surface of the cage 1 and the inner circumferential surface of one side of the cage 1 is set wider than the gap h 2 formed on the opposite side of the groove 21 .
このように構成されたケージ弁において、弁開
度すなわち弁座４，５と着座部８，９が離間した
時は、流体が窓３を通過した後、弁座５と着座部
９との間を流過して送出口１ａに至る流れＡと、
弁プラグ６の外周面とケージ１の内周面間の間隙
を通過し、弁座４と着座部８との間を流過して弁
プラグ６の上方空室２２に侵入し、貫通孔１０を
通過して弁プラグ６内に至り流れＡに合流するＢ
とに分流する。このとき、溝２１内すなわち広い
間隙h1が形成された弁プラグ６とケージ１間を多
くの流体が流過するため、弁プラグ６の周囲に圧
力差を生じ、この圧力差によつて弁プラグ６を一
方向に作用する。 In the cage valve configured in this way, when the valve opening degree, that is, when the valve seats 4, 5 and the seating parts 8, 9 are separated, after the fluid passes through the window 3, the gap between the valve seat 5 and the seating parts 9 is determined. a flow A that passes through and reaches the outlet 1a;
It passes through the gap between the outer peripheral surface of the valve plug 6 and the inner peripheral surface of the cage 1, flows between the valve seat 4 and the seating part 8, enters the upper cavity 22 of the valve plug 6, and enters the through hole 10. Flow B passes through the valve plug 6 and joins flow A.
It is divided into two parts. At this time, since a large amount of fluid flows between the cage 1 and the valve plug 6 in which a wide gap h1 is formed, a pressure difference is generated around the valve plug 6, and this pressure difference causes the valve to open. The plug 6 acts in one direction.
したがつて、流体が弁プラグ６とケージ１間の
間隙を流過している間は、流体に圧力変動があつ
ても、弁プラグ６を一方向に押圧する状態が解除
されることはほとんどない。 Therefore, while the fluid is flowing through the gap between the valve plug 6 and the cage 1, even if there are pressure fluctuations in the fluid, the state of pressing the valve plug 6 in one direction is almost never released. do not have.
なお、本実施例においては、ケージ１の内周面
の一部に溝２１を設ける例を示したが、第４およ
び第５図に示すように、溝底２３がケージ１の外
周面に偏心する円周面で形成された偏心溝２４を
ケージ１の内周面に全周にわたり設けるものであ
つても実施例と同様の効果を奏する。この場合、
偏心溝２４を同一の溝幅で形成すれば、加工時の
刃物の破損を軽減させることができると共に、そ
の加工作業を一層容易に行うことができる。 In this embodiment, the groove 21 is provided on a part of the inner peripheral surface of the cage 1, but as shown in FIGS. 4 and 5, the groove bottom 23 is eccentrically formed on the outer peripheral surface of the cage Even if the eccentric groove 24 formed by the circumferential surface is provided on the inner peripheral surface of the cage 1 over the entire circumference, the same effect as in the embodiment can be obtained. in this case,
If the eccentric grooves 24 are formed with the same groove width, damage to the cutter during machining can be reduced, and the machining operation can be performed more easily.
以上説明したように本発明によれば、ケージの
片側内周面であつて、両弁座間に溝を設けたの
で、弁プラグの外周面とケージの内周面間の間隙
に侵入する流体による流体圧力差によつて弁プラ
グを一方向に作用してケージ内における弁プラグ
の振動を確実に防止することができる。
As explained above, according to the present invention, a groove is provided between both valve seats on the inner circumferential surface of one side of the cage, so that fluid entering the gap between the outer circumferential surface of the valve plug and the inner circumferential surface of the cage is prevented. The fluid pressure difference acts on the valve plug in one direction to reliably prevent vibration of the valve plug within the cage.
第１図は従来のケージ弁を示す断面図、第２図
は本発明に係るケージ弁を示す断面図、第３図は
第２図の―断面図、第４図は他の実施例を示
す断面図、第５図は第４図の―断面図であ
る。
１…ケージ、２…周壁、３…流体通過用窓、
４，５…弁座、６…弁プラグ、８，９…着座部、
２１…溝。
Fig. 1 is a sectional view showing a conventional cage valve, Fig. 2 is a sectional view showing a cage valve according to the present invention, Fig. 3 is a sectional view of Fig. 2, and Fig. 4 shows another embodiment. The cross-sectional view, FIG. 5, is a cross-sectional view taken from FIG. 1...Cage, 2...Peripheral wall, 3...Fluid passage window,
4, 5... Valve seat, 6... Valve plug, 8, 9... Seating part,
21...Groove.
Claims (1)
の上下に設けられかつ口径が異なる弁座を有する
円筒状のケージと、このケージ内に進退自在に配
設され前記両弁座にそれぞれ着座可能な着座部を
有する弁プラグとを備えたケージ弁において、前
記ケージの片側内周面であつて、前記両弁座間に
溝を設けたことを特徴とするケージ弁。1 A cylindrical cage having a fluid passage window bored in the peripheral wall and valve seats of different diameters provided above and below the window, and a cylindrical cage arranged to be movable forward and backward within the cage and seated on both the valve seats, respectively. 1. A cage valve comprising a valve plug having a removable seating portion, characterized in that a groove is provided on an inner circumferential surface of one side of the cage between the two valve seats.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13675583A JPS6030875A (en) | 1983-07-28 | 1983-07-28 | Cage valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13675583A JPS6030875A (en) | 1983-07-28 | 1983-07-28 | Cage valve |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6030875A JPS6030875A (en) | 1985-02-16 |
| JPH0218468B2 true JPH0218468B2 (en) | 1990-04-25 |
Family
ID=15182736
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP13675583A Granted JPS6030875A (en) | 1983-07-28 | 1983-07-28 | Cage valve |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6030875A (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20170102076A1 (en) * | 2015-10-12 | 2017-04-13 | Emerson Process Management Regulator Technolgies, Inc. | High capacity linear valve cage |
-
1983
- 1983-07-28 JP JP13675583A patent/JPS6030875A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6030875A (en) | 1985-02-16 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US4774984A (en) | Low-noise plug valve | |
| CA2141005A1 (en) | Wire Cutting Insert for Gate Valve | |
| JPH0218468B2 (en) | ||
| JPH0218469B2 (en) | ||
| JPH0218470B2 (en) | ||
| JPS62395B2 (en) | ||
| JPS6138272A (en) | Cage valve | |
| CA1258847A (en) | Outside seal and yoke valve | |
| JP3022240B2 (en) | Cage valve and method of processing cage valve | |
| JPS6030876A (en) | Cage valve | |
| US5832949A (en) | Control valve | |
| JPS6230343B2 (en) | ||
| JPH0747665Y2 (en) | Valve device | |
| JPH0218251Y2 (en) | ||
| JPH05150841A (en) | Reducing valve | |
| JPH04316772A (en) | Cage valve | |
| JP3330688B2 (en) | Throttle valve | |
| JP2564542Y2 (en) | Valve device | |
| JP2002071048A (en) | Automatic pressure regulating valve | |
| JPS59144867A (en) | Cage valve | |
| JPS63107705U (en) | ||
| JPH0247816Y2 (en) | ||
| JP2560898Y2 (en) | Ball valve | |
| JPS6196267A (en) | Preparation of plug for fluid control valve | |
| JPH0218467B2 (en) |