JP2827599B2 - Variable throttle valve - Google Patents
Variable throttle valveInfo
- Publication number
- JP2827599B2 JP2827599B2 JP20847191A JP20847191A JP2827599B2 JP 2827599 B2 JP2827599 B2 JP 2827599B2 JP 20847191 A JP20847191 A JP 20847191A JP 20847191 A JP20847191 A JP 20847191A JP 2827599 B2 JP2827599 B2 JP 2827599B2
- Authority
- JP
- Japan
- Prior art keywords
- throttle valve
- variable throttle
- rod
- hole
- flange
- 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 - Lifetime
Links
Landscapes
- Lift Valve (AREA)
- Sliding Valves (AREA)
- Details Of Valves (AREA)
Description
【０００１】[0001]
【産業上の利用分野】この発明は、電力用または産業用
の蒸気タービン等の潤滑油あるいは制御油の配管に用い
る可変絞り弁に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a variable throttle valve used for lubricating oil or control oil piping of an electric or industrial steam turbine.
【０００２】[0002]
【従来の技術】図３は従来の可変絞り弁の構成図、図４
は図３の可変絞り弁を配管に取り付けた状態を示す正面
図である。可変絞り弁１１は、絞りフランジ１のオリフ
ィス穴８にロッド２を挿入しロッド２の挿入長を変え
て、流量を調整するものである。ロッド２をオリフィス
穴８に挿入してロッド２を押え板３およびロッド固定ナ
ット４で固定し、さらにロッド固定ナット５でロッド２
を固定している。７は絞りフランジ１を貫通するフラン
ジボルト用穴である。配管６に取り付けた両方のフラン
ジ６ａの間に絞りフランジ１を挟んで、フランジボルト
１０によって可変絞り弁１１を配管６と結合させてい
る。FIG. 3 is a block diagram of a conventional variable throttle valve, and FIG.
FIG. 4 is a front view showing a state where the variable throttle valve of FIG. 3 is attached to a pipe. The variable throttle valve 11 is for adjusting the flow rate by inserting the rod 2 into the orifice hole 8 of the throttle flange 1 and changing the insertion length of the rod 2. The rod 2 is inserted into the orifice hole 8, and the rod 2 is fixed with the holding plate 3 and the rod fixing nut 4.
Is fixed. Reference numeral 7 denotes a flange bolt hole penetrating the drawing flange 1. The variable throttle valve 11 is connected to the pipe 6 by a flange bolt 10 with the throttle flange 1 interposed between the two flanges 6 a attached to the pipe 6.
【０００３】[0003]
【発明が解決しようとする課題】従来の可変絞り弁は図
４のごとく、油が流通するオリフィス穴８は１つだけな
ので、油がオリフィス穴８を通過する際、油の流量を制
限するためのロッド２の影響が大きく、油の流れが大い
に乱れる。このため、配管６の前後の油の差圧が大きい
場合には、騒音，または振動が発生し、配管６やその他
の装置に振動などの悪影響を及ぼす恐れがある。As shown in FIG. 4, the conventional variable throttle valve has only one orifice hole 8 through which the oil flows. Therefore, when the oil passes through the orifice hole 8, the flow rate of the oil is restricted. Greatly affects the flow of oil. For this reason, when the pressure difference between the oils before and after the pipe 6 is large, noise or vibration is generated, which may adversely affect the pipe 6 and other devices such as vibration.
【０００４】この発明は、流体の流量調整のとき、騒
音，または振動が発生しないような可変絞り弁を提供す
ることを目的とする。It is an object of the present invention to provide a variable throttle valve which does not generate noise or vibration when adjusting the flow rate of a fluid.
【０００５】[0005]
【課題を解決するための手段】絞りフランジにオリフィ
ス穴を備え、このオリフィス穴にロッドを挿入してロッ
ドの挿入長を変化させることにより前記オリフィス穴を
流通する流体の流量を調整する可変絞り弁において、前
記オリフィス穴の周辺に前記絞りフランジを貫通する小
口径の補助穴を設けたことによって、上記目的を達成す
る。A throttle valve is provided with an orifice hole in a throttle flange, and a rod is inserted into the orifice hole to change the length of insertion of the rod to adjust the flow rate of a fluid flowing through the orifice hole. The above object is achieved by providing a small-diameter auxiliary hole which penetrates the aperture flange around the orifice hole.
【０００６】[0006]
【作用】この発明においては、可変絞り弁のオリフィス
の周辺に絞りフランジを貫通する小口径の補助穴を設
け、配管の流れの一部を小口径の補助穴に分流させ、流
体のエネルギーを分散させてロッドによる乱流の影響を
少なくするので、流量調整のとき、可変絞り弁からの騒
音，または振動の発生を抑制させる。According to the present invention, a small-diameter auxiliary hole is provided in the vicinity of the orifice of the variable throttle valve so as to penetrate the throttle flange, and a part of the flow of the pipe is divided into the small-diameter auxiliary hole to disperse the energy of the fluid. As a result, the influence of the turbulent flow caused by the rod is reduced, so that the generation of noise or vibration from the variable throttle valve during flow rate adjustment is suppressed.
【０００７】[0007]
【実施例】図１はこの発明の実施例の可変絞り弁の構成
図、図２は図１の可変絞り弁を配管に取り付けた状態を
示す正面図である。図１および図２において、図３およ
び図４と同じ部位は同じ符号を付してある。絞りフラン
ジ１，ロッド２，押え板３，ロッド固定ナット４および
５，フランジボルト用穴７，オリフイス穴８について
は、従来と同様なので説明を省略する。この発明の実施
例による可変絞り弁１１は、オリフイス穴８の周辺に絞
りフランジ１を貫通する小口径の補助穴９を４個も設け
た。補助穴９は、オリフィス穴９の周辺に左右対称の位
置に設ければよく、個数は４個でなくともよい。FIG. 1 is a structural view of a variable throttle valve according to an embodiment of the present invention, and FIG. 2 is a front view showing a state where the variable throttle valve of FIG. 1 is attached to a pipe. 1 and 2, the same parts as those in FIGS. 3 and 4 are denoted by the same reference numerals. The drawing flange 1, the rod 2, the holding plate 3, the rod fixing nut 4 and 5, the hole 7 for the flange bolt, and the orifice hole 8 are the same as those in the conventional art, and the description thereof will be omitted. The variable throttle valve 11 according to the embodiment of the present invention has four small diameter auxiliary holes 9 penetrating the throttle flange 1 around the orifice hole 8. The auxiliary holes 9 may be provided at symmetrical positions around the orifice hole 9 and may not be four in number.
【０００８】図２において、配管６を流れる流体はオリ
フィス穴８で流量を制限されるとともに、流体の一部は
補助穴９を通って流通するので、流体のエネルギーを分
散させ、ロッド２による乱流の影響を少なくする。この
ため、可変絞り弁のロッド挿入長の変化による騒音また
は振動の発生を抑制することができる。In FIG. 2, the flow rate of the fluid flowing through the pipe 6 is restricted by the orifice hole 8, and a part of the fluid flows through the auxiliary hole 9. Reduce the effects of flow. For this reason, generation of noise or vibration due to a change in the rod insertion length of the variable throttle valve can be suppressed.
【０００９】[0009]
【発明の効果】この発明によれば、配管を流通する流体
の一部を小口径の補助穴に分流させ、流体のエネルギー
を分散させてロッドによる乱流の影響を乱れを少なくす
るので、流量調整のとき、絞りに伴う騒音または振動の
発生を抑えることができる。According to the present invention, a part of the fluid flowing through the pipe is diverted to the small-diameter auxiliary hole, and the energy of the fluid is dispersed to reduce the influence of the turbulent flow caused by the rod. At the time of adjustment, generation of noise or vibration due to the diaphragm can be suppressed.
【図１】この発明の実施例の可変絞り弁の構成図であ
る。FIG. 1 is a configuration diagram of a variable throttle valve according to an embodiment of the present invention.
【図２】図１の可変絞り弁を配管に取り付けた状態を示
す正面図である。FIG. 2 is a front view showing a state where the variable throttle valve of FIG. 1 is attached to a pipe.
【図３】従来の可変絞り弁の構成図である。FIG. 3 is a configuration diagram of a conventional variable throttle valve.
【図４】図３の可変絞り弁を配管に取り付けた状態を示
す正面図である。FIG. 4 is a front view showing a state where the variable throttle valve of FIG. 3 is attached to a pipe.
１ 絞りフランジ ２ ロッド ３ 押え板 ４ ロッド固定用ナット ５ ロッド固定用ナット ６ 配管 ８ オリフィス穴 ９ 補助穴 １１ 可変絞り弁 REFERENCE SIGNS LIST 1 throttle flange 2 rod 3 holding plate 4 nut for fixing rod 5 nut for fixing rod 6 piping 8 orifice hole 9 auxiliary hole 11 variable throttle valve
Claims (1)
オリフィス穴にロッドを挿入してロッドの挿入長を変化
させることにより、前記オリフィス穴を流通する流体の
流量を調整する可変絞り弁において、前記オリフィス穴
の周辺に前記絞りフランジを貫通する小口径の補助穴を
設けたことを特徴とする可変絞り弁。An orifice hole is provided in an orifice flange, and a rod is inserted into the orifice hole to change the insertion length of the rod, thereby adjusting a flow rate of a fluid flowing through the orifice hole. A variable throttle valve, wherein a small-diameter auxiliary hole penetrating the throttle flange is provided around an orifice hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP20847191A JP2827599B2 (en) | 1991-07-25 | 1991-07-25 | Variable throttle valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP20847191A JP2827599B2 (en) | 1991-07-25 | 1991-07-25 | Variable throttle valve |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0526370A JPH0526370A (en) | 1993-02-02 |
| JP2827599B2 true JP2827599B2 (en) | 1998-11-25 |
Family
ID=16556728
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP20847191A Expired - Lifetime JP2827599B2 (en) | 1991-07-25 | 1991-07-25 | Variable throttle valve |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2827599B2 (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101037903B1 (en) | 2010-12-09 | 2011-05-30 | 한국기계연구원 | Method for fabricating roll for roll printing/roll imprinting |
| JP6111269B2 (en) * | 2012-12-19 | 2017-04-05 | Ｍｈｉプラント株式会社 | Soup system with pressure adjustment mechanism |
-
1991
- 1991-07-25 JP JP20847191A patent/JP2827599B2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0526370A (en) | 1993-02-02 |
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