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JP5275277B2 - Control valve - Google Patents

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JP5275277B2
JP5275277B2 JP2010058456A JP2010058456A JP5275277B2 JP 5275277 B2 JP5275277 B2 JP 5275277B2 JP 2010058456 A JP2010058456 A JP 2010058456A JP 2010058456 A JP2010058456 A JP 2010058456A JP 5275277 B2 JP5275277 B2 JP 5275277B2
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valve
seat member
outlet
valve body
inlet
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JP2011190890A (en
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直樹 松川
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Tlv Co Ltd
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Tlv Co Ltd
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Abstract

<P>PROBLEM TO BE SOLVED: To provide a control valve reduced in the noise caused by the whistling noise. <P>SOLUTION: An inlet 10 and an outlet 11 are formed in a valve body 4. A valve seat member 13 in which a valve hole 12 allowing the inlet 10 to communicate with the outlet 11 is formed is attached to the valve body 4. A valve element 14 for opening/closing the valve hole 12 by separating from and sitting on the valve seat member 13 is disposed on the outlet 11 side of the valve hole 12. A valve stem 15 for openably/closably operating the valve element 14 is connected to the outlet 11 side of the valve element 14. A columnar projection 17 reduced in diameter downward is formed on the inside of the seat surface 16 of the valve element 14 sitting on the valve seat member 13 so as to be rotationally symmetric with respect to the center axis of the valve element 14. The outer upper surface of the seat surface 21 of the valve seat member 13 on which the valve element 14 sits is formed in a rough surface 22. A gas flow passing through the valve hole 12 is disturbed and dispersed by the rough surface 22 formed on the outer upper surface of the valve seat member 13, whereby the noise is reduced. <P>COPYRIGHT: (C)2011,JPO&amp;INPIT

Description

本発明は、蒸気や圧縮空気等の気体配管系に取り付けて、気体の流れを閉止したり制御したりするための調節弁に関し、特に騒音を防止できるものに関する。 The present invention relates to a control valve that is attached to a gas piping system such as steam or compressed air to close or control the flow of gas, and particularly relates to a valve that can prevent noise.

従来の調節弁は、例えば特許文献１に開示されている。これは、弁ケーシングで入口と出口を形成し、入口と出口を連通する弁口を形成した弁座部材を弁ケーシングに取り付け、弁座部材に離着座して弁口を開閉する弁体を弁口の出口側に配置し、弁体を開閉操作する弁軸を弁体の出口側に連結し、弁体の弁座部材とのシート面の内側に弁体の中心軸の回りに回転対称に下方に向かって小径となる円柱突起を形成したものである。 A conventional control valve is disclosed in Patent Document 1, for example. This is because the valve casing forms an inlet and an outlet, a valve seat member that forms a valve port that communicates the inlet and the outlet is attached to the valve casing, and the valve body that opens and closes the valve seat by opening and closing the valve seat member. It is arranged on the outlet side of the mouth, and the valve shaft that opens and closes the valve body is connected to the outlet side of the valve body, and is rotationally symmetrical around the central axis of the valve body inside the seat surface with the valve seat member of the valve body A cylindrical projection having a smaller diameter downward is formed.

特開２００５−２５７０４３JP 2005-257043

上記従来の調節弁は、弁口を通過する気体流が弁体と弁座部材の間を高速流となって通過するために笛吹き音による騒音を発生するという問題点があった。 The conventional control valve has a problem in that noise caused by whistling noise is generated because the gas flow passing through the valve port passes between the valve body and the valve seat member as a high-speed flow.

したがって本発明が解決しようとする課題は、笛吹き音による騒音を低減できる調節弁を提供することである。 Therefore, the problem to be solved by the present invention is to provide a control valve that can reduce noise caused by whistling noise.

上記の課題を解決するために、本発明の調節弁は、弁ケーシングで入口と出口を形成し、入口と出口を連通する弁口を形成した弁座部材を弁ケーシングに取り付け、弁座部材に離着座して弁口を開閉する弁体を弁口の出口側に配置し、弁体を開閉操作する弁軸を弁体の出口側に連結し、弁体の弁座部材とのシート面の内側に弁体の中心軸の回りに回転対称に下方に向かって小径となる円柱突起を形成したものにおいて、弁座部材の弁体とのシート面の外側上面を粗面に形成したことを特徴とするものである。 In order to solve the above-described problems, a control valve according to the present invention includes a valve seat that forms an inlet and an outlet in a valve casing, and a valve port that communicates the inlet and the outlet. The valve body that opens and closes the valve port is disposed on the outlet side of the valve port, the valve shaft that opens and closes the valve body is connected to the outlet side of the valve body, and the seat surface with the valve seat member of the valve body is connected A cylindrical projection having a small diameter in a rotationally downward direction around the central axis of the valve body is formed on the inner side, and the outer upper surface of the seat surface with the valve body of the valve seat member is formed as a rough surface. It is what.

本発明によれば、弁座部材の弁体とのシート面の外側上面を粗面に形成したことにより、弁口を通過する気体流の流れを乱して分散させることにより騒音を低減できるという優れた効果を奏する。上記粗面はローレット加工やスパイラル加工を施したり機械加工によりアヤ目加工を施したりすることにより形成することができる。ローレット加工により深さ０．０５ｍｍ乃至０．２ｍｍの粗面に形成した場合は１００ｄＢの騒音が９０ｄＢ乃至８０ｄＢに低減することを確認できた。 According to the present invention, by forming the outer upper surface of the seat surface with the valve body of the valve seat member as a rough surface, noise can be reduced by disturbing and dispersing the flow of the gas flow passing through the valve port. Excellent effect. The rough surface can be formed by carrying out knurling or spiral machining, or by carrying out machining by machining. It was confirmed that the noise of 100 dB was reduced to 90 dB to 80 dB when a rough surface having a depth of 0.05 mm to 0.2 mm was formed by knurling.

本発明の実施の形態に係わる調節弁の断面図である。It is sectional drawing of the control valve concerning embodiment of this invention. 図１の弁座部材の平面図である。It is a top view of the valve seat member of FIG.

以下、本発明の実施の形態について、図１と図２を参照して説明する。本実施の形態は調節弁１に気液分離器２と自動排液弁３を組み合わせたものである。弁ケーシングは弁本体４と、仕切部材５を間に挟んで弁本体４に締結される上蓋６と、仕切部材５と上蓋６を弁本体４に締結する上蓋フランジ７と、弁本体４に締結する排液弁本体８と、排液弁本体８に締結する下蓋９とから形成する。弁本体４に入口１０と出口１１を形成する。入口１０と出口１１を連通する弁口１２を形成した弁座部材１３を弁本体４の横断壁にねじ結合する。弁座部材１３に離着座して弁口１２を開閉する弁体１４を弁口１２の出口１１側に配置する。弁体１４を開閉操作する弁軸１５を弁体１４の出口側に一体に形成する。弁体１４の弁座部材１３とのシート面１６の内側に弁体１４の中心軸の回りに回転対称に下方に向かって小径となる円柱突起１７を形成する。弁口１２の中心軸と弁体１４及び弁軸１５の中心軸は同一軸上に形成する。弁軸１５の上部は仕切部材５と上蓋６を貫通して突出する。弁軸１５と上蓋６の間にコイルバネ１８とパッキング１９を配置し、上蓋６にパッキング押え２０をねじ結合する。弁座部材１３の弁体１４とのシート面２１の外側上面をローレット加工により深さ０．２ｍｍの粗面２２に形成する。 Hereinafter, an embodiment of the present invention will be described with reference to FIGS. 1 and 2. In this embodiment, a gas-liquid separator 2 and an automatic drain valve 3 are combined with a control valve 1. The valve casing is fastened to the valve body 4, the upper lid 6 fastened to the valve body 4 with the partition member 5 interposed therebetween, the upper lid flange 7 to fasten the partition member 5 and the upper lid 6 to the valve body 4, and the valve body 4. The drain valve main body 8 to be formed and the lower lid 9 fastened to the drain valve main body 8 are formed. An inlet 10 and an outlet 11 are formed in the valve body 4. A valve seat member 13 having a valve port 12 communicating with the inlet 10 and the outlet 11 is screwed to the transverse wall of the valve body 4. A valve element 14 that opens and closes the valve opening 12 by being seated on and off the valve seat member 13 is disposed on the outlet 11 side of the valve opening 12. A valve shaft 15 for opening and closing the valve body 14 is integrally formed on the outlet side of the valve body 14. A cylindrical projection 17 having a small diameter toward the lower side is formed around the central axis of the valve body 14 on the inner side of the seat surface 16 of the valve body 14 with the valve seat member 13. The central axis of the valve port 12 and the central axes of the valve body 14 and the valve shaft 15 are formed on the same axis. The upper part of the valve shaft 15 protrudes through the partition member 5 and the upper lid 6. A coil spring 18 and a packing 19 are disposed between the valve shaft 15 and the upper lid 6, and a packing presser 20 is screwed to the upper lid 6. The outer upper surface of the seat surface 21 with the valve body 14 of the valve seat member 13 is formed into a rough surface 22 having a depth of 0.2 mm by knurling.

排液弁本体８の上面内端に二重のほぼ円筒形状の隔壁２３を載せ、隔壁２３を弁本体４との間で固定する。隔壁２３の外側円筒は真直ぐな形状で内側円筒よりも低く形成する。外側円筒は省略して弁本体４で兼用することもできる。隔壁２３の内側円筒は上端部が上方に向かって緩やかに拡がり、下端部が下方に向かって緩やかに拡がった形状である。隔壁２３の中心軸は弁口１２の中心軸と同一軸上に形成する。隔壁２３の外側円筒の上面外端にテーパー状のスクリーン２４を載せ、隔壁２３の内側円筒の上端外周との間で固定する。隔壁２３の内外円筒の間に形成される環状空間２５に、隔壁２３と一体に旋回羽根２６を形成する。入口１０はスクリーン２４を通して下方の環状空間２５に連結し、隔壁２３の内側円筒の内側は上方の弁口１２に連結する。 A double substantially cylindrical partition wall 23 is placed on the inner end of the upper surface of the drain valve main body 8, and the partition wall 23 is fixed to the valve body 4. The outer cylinder of the partition wall 23 is straight and formed lower than the inner cylinder. The outer cylinder can be omitted, and the valve body 4 can also be used. The inner cylinder of the partition wall 23 has a shape in which the upper end portion gently expands upward and the lower end portion gently expands downward. The central axis of the partition wall 23 is formed on the same axis as the central axis of the valve port 12. A tapered screen 24 is placed on the outer edge of the upper surface of the outer cylinder of the partition wall 23 and fixed between the outer periphery of the upper end of the inner cylinder of the partition wall 23. A swirl vane 26 is formed integrally with the partition wall 23 in an annular space 25 formed between the inner and outer cylinders of the partition wall 23. The inlet 10 is connected to the lower annular space 25 through the screen 24, and the inner side of the inner cylinder of the partition wall 23 is connected to the upper valve port 12.

隔壁２３の下方に自動排液弁としての中空球形の弁フロート２７を配置する。弁フロート２７は液位に応じて浮上降下して排液弁口２８を開閉し、液体だけを排液口２９から系外に排出する。弁フロート２７を逆カップ状のカバー３０で覆う。カバー３０は上部が半球状で周囲が円筒状であり、下端に外側に突出した足３１を有し、足３１を下蓋９に締結する。カバー３０は下端に内外を連通する通液開口３２を有し、上部に内外を連通する２つの通気孔３３を有する。 A hollow spherical valve float 27 is disposed below the partition wall 23 as an automatic drain valve. The valve float 27 rises and falls according to the liquid level, opens and closes the drain valve port 28, and discharges only the liquid from the drain port 29 to the outside of the system. The valve float 27 is covered with a reverse cup-shaped cover 30. The cover 30 is hemispherical at the top and cylindrical at the periphery, has a foot 31 protruding outward at the lower end, and fastens the foot 31 to the lower lid 9. The cover 30 has a liquid passage opening 32 that communicates inside and outside at the lower end, and two vent holes 33 that communicate between inside and outside at the top.

入口１０から環状空間２４に入った流体は旋回羽根２６で旋回せしめられる。気体中の液滴は遠心力の作用で外側に振り出されて分離される。分離された液滴は排液弁本体８の内周壁に沿って流下し、弁フロート２７の浮上降下によって開閉される排液弁口２８を通して排液口２９から系外に排出される。液滴の分離された気体は隔壁２３の内側円筒の下端から隔壁２３の内側円筒の内側を通して弁口１２に向かう。弁口１２を通過する気体流は弁座部材１３の外側上面に形成された粗面２２により流れが乱されて分散されることにより騒音が低減される。 The fluid that has entered the annular space 24 from the inlet 10 is swirled by swirl vanes 26. The droplets in the gas are spun out and separated by the action of centrifugal force. The separated droplets flow down along the inner peripheral wall of the drain valve main body 8 and are discharged out of the system from the drain port 29 through the drain valve port 28 that is opened and closed by the rising and falling of the valve float 27. The gas from which the droplets are separated travels from the lower end of the inner cylinder of the partition wall 23 to the valve port 12 through the inner side of the inner cylinder of the partition wall 23. The gas flow passing through the valve port 12 is disturbed and dispersed by the rough surface 22 formed on the outer upper surface of the valve seat member 13 to reduce noise.

本発明は、蒸気や圧縮空気等の気体配管系に取り付けて、気体の流れを閉止したり制御したりするための調節弁に利用することができる。 The present invention can be applied to a regulating valve for closing or controlling a gas flow by being attached to a gas piping system such as steam or compressed air.

１ 調節弁
２ 気液分離器
３ 自動排液弁
４ 弁本体
６ 上蓋
８ 排液弁本体
９ 下蓋
１０ 入口
１１ 出口
１２ 弁口
１３ 弁座部材
１４ 弁体
１５ 弁軸
１６ シート面
１７ 円柱突起
２１ シート面
２２ 粗面
２３ 隔壁
２５ 環状空間
２６ 旋回羽根
２７ 弁フロート
２８ 排液弁口
２９ 排液口 DESCRIPTION OF SYMBOLS 1 Control valve 2 Gas-liquid separator 3 Automatic drain valve 4 Valve main body 6 Upper cover 8 Drain valve main body 9 Lower cover 10 Inlet 11 Outlet 12 Valve port 13 Valve seat member 14 Valve body 15 Valve shaft 16 Seat surface 17 Cylindrical protrusion 21 Seat surface 22 Rough surface 23 Partition 25 Annular space 26 Swivel vane 27 Valve float 28 Drain valve port 29 Drain port

Claims (2)

弁ケーシングで入口と出口を形成し、入口と出口を連通する弁口を形成した弁座部材を弁ケーシングに取り付け、弁座部材に離着座して弁口を開閉する弁体を弁口の出口側に配置し、弁体を開閉操作する弁軸を弁体の出口側に連結し、弁体の弁座部材とのシート面の内側に弁体の中心軸の回りに回転対称に下方に向かって小径となる円柱突起を形成したものにおいて、前記弁座部材はその出口側に配置した弁体とのシート面の外側上面が粗面に形成されていることを特徴とする調節弁。 A valve seat member that forms an inlet and an outlet with a valve casing, a valve port that communicates the inlet and outlet, is attached to the valve casing, and a valve body that opens and closes the valve seat by opening and closing the valve seat member. The valve shaft, which opens and closes the valve body, is connected to the outlet side of the valve body, and faces downwards in a rotationally symmetrical manner around the central axis of the valve body inside the seat surface with the valve seat member of the valve body. in that form the cylindrical projection whose diameter Te, regulating valve, characterized in that the outer upper surface of the seat surface of the valve body which is disposed on the outlet side of the valve seat member Waso is formed on the rough surface. 前記粗面はローレット加工により深さ０．０５ｍｍ乃至０．２ｍｍに形成されていることを特徴とする請求項１に記載の調節弁。The control valve according to claim 1, wherein the rough surface is formed to a depth of 0.05 mm to 0.2 mm by knurling.
JP2010058456A 2010-03-15 2010-03-15 Control valve Active JP5275277B2 (en)

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Application Number Priority Date Filing Date Title
JP2010058456A JP5275277B2 (en) 2010-03-15 2010-03-15 Control valve

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Application Number Priority Date Filing Date Title
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JP2011190890A JP2011190890A (en) 2011-09-29
JP5275277B2 true JP5275277B2 (en) 2013-08-28

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP7227081B2 (en) 2019-06-12 2023-02-21 東洋エンジニアリング株式会社 Chute tube for transporting particles

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
PL3193052T3 (en) * 2016-01-15 2019-11-29 Danfoss As Valve with valve seat member
JP6623071B2 (en) * 2016-02-09 2019-12-18 株式会社テイエルブイ Control valve

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Publication number Priority date Publication date Assignee Title
JPS578664A (en) * 1980-06-11 1982-01-16 Nitsutoo Kk Cover for pressure vessel
IT1139473B (en) * 1980-09-30 1986-09-24 Gen Electric VALVE NOT NOISY
JPS6267395A (en) * 1985-09-14 1987-03-27 株式会社　テイエルブイ Valve with steam separator
JPH09170668A (en) * 1995-12-20 1997-06-30 Hitachi Ltd Control valve
JPH11239694A (en) * 1998-02-26 1999-09-07 Matsushita Electric Ind Co Ltd Drain valve device of washing machine
JP2000081163A (en) * 1998-07-01 2000-03-21 Shinkawa Denki Kk Fluid apparatus containing regulation valve
JP2001027334A (en) * 1999-07-15 2001-01-30 Motoyama Eng Works Ltd Regulating valve
JP2005257043A (en) * 2004-03-15 2005-09-22 Tlv Co Ltd Valve with gas-liquid separator

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP7227081B2 (en) 2019-06-12 2023-02-21 東洋エンジニアリング株式会社 Chute tube for transporting particles
GB2596936B (en) * 2019-06-12 2023-04-26 Toyo Engineering Corp Chute pipe for particle transportation
US11807460B2 (en) 2019-06-12 2023-11-07 Toyo Engineering Corporation Chute tube for transferring particles

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