WO2013183880A1 - Bague de siège métallique pour clapet à bille - Google Patents

Bague de siège métallique pour clapet à bille Download PDF

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Publication number
WO2013183880A1
WO2013183880A1 PCT/KR2013/004592 KR2013004592W WO2013183880A1 WO 2013183880 A1 WO2013183880 A1 WO 2013183880A1 KR 2013004592 W KR2013004592 W KR 2013004592W WO 2013183880 A1 WO2013183880 A1 WO 2013183880A1
Authority
WO
WIPO (PCT)
Prior art keywords
seating
ball valve
ball
seat ring
elastic
Prior art date
Application number
PCT/KR2013/004592
Other languages
English (en)
Korean (ko)
Inventor
손정규
손성민
Original Assignee
(주)대일밸브
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by (주)대일밸브 filed Critical (주)대일밸브
Publication of WO2013183880A1 publication Critical patent/WO2013183880A1/fr

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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
    • F16K5/00—Plug valves; Taps or cocks comprising only cut-off apparatus having at least one of the sealing faces shaped as a more or less complete surface of a solid of revolution, the opening and closing movement being predominantly rotary
    • F16K5/08—Details
    • F16K5/14—Special arrangements for separating the sealing faces or for pressing them together
    • F16K5/20—Special arrangements for separating the sealing faces or for pressing them together for plugs with spherical surfaces
    • F16K5/205—Sealing effected by the flowing medium
    • F16K5/208—Sealing effected by the flowing medium with tongue-shaped means
    • 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
    • F16K5/00—Plug valves; Taps or cocks comprising only cut-off apparatus having at least one of the sealing faces shaped as a more or less complete surface of a solid of revolution, the opening and closing movement being predominantly rotary
    • F16K5/08—Details
    • F16K5/14—Special arrangements for separating the sealing faces or for pressing them together
    • F16K5/20—Special arrangements for separating the sealing faces or for pressing them together for plugs with spherical surfaces
    • 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
    • F16K25/00—Details relating to contact between valve members and seats
    • 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
    • F16K5/00—Plug valves; Taps or cocks comprising only cut-off apparatus having at least one of the sealing faces shaped as a more or less complete surface of a solid of revolution, the opening and closing movement being predominantly rotary
    • F16K5/06—Plug valves; Taps or cocks comprising only cut-off apparatus having at least one of the sealing faces shaped as a more or less complete surface of a solid of revolution, the opening and closing movement being predominantly rotary with plugs having spherical surfaces; Packings therefor
    • 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
    • F16K5/00—Plug valves; Taps or cocks comprising only cut-off apparatus having at least one of the sealing faces shaped as a more or less complete surface of a solid of revolution, the opening and closing movement being predominantly rotary
    • F16K5/06—Plug valves; Taps or cocks comprising only cut-off apparatus having at least one of the sealing faces shaped as a more or less complete surface of a solid of revolution, the opening and closing movement being predominantly rotary with plugs having spherical surfaces; Packings therefor
    • F16K5/0663—Packings
    • F16K5/0668—Single packings
    • 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
    • F16K5/00—Plug valves; Taps or cocks comprising only cut-off apparatus having at least one of the sealing faces shaped as a more or less complete surface of a solid of revolution, the opening and closing movement being predominantly rotary
    • F16K5/06—Plug valves; Taps or cocks comprising only cut-off apparatus having at least one of the sealing faces shaped as a more or less complete surface of a solid of revolution, the opening and closing movement being predominantly rotary with plugs having spherical surfaces; Packings therefor
    • F16K5/0663—Packings
    • F16K5/0689—Packings between housing and plug

Definitions

  • the present invention relates to a metal seating of the ball valve, and more particularly, a plurality of seating portions having elasticity in the metal seating of the ball valve to maintain a seal in contact with the ball opening and closing the flow path of the valve and It relates to a metal seating of the ball valve to allow the metal seating to be elastically contacted to create a closed structure.
  • the piping which transfers gas is equipped with the ball valve as a valve which interrupts the flow of a fluid and gas.
  • the ball valve is to allow or block the flow of fluid or gas while the spherical ball is in contact with the valve seating, and must have a high sealing property.
  • the most important factor for improving the sealing properties is the coupling force between the ball and the valve seat ring.
  • the recess and the groove grooves are formed by forming the recess grooves with straight holes without ring-shaped vacancy.
  • both side ring rings are always in close contact with the outer circumferential surface of the ball, it is possible to prevent leakage of high pressure fluid at the beginning of use, but is in contact with each other as the number of times of use increases.
  • the inner surface of the ball and the two seat ring is worn out, there is a problem that it is difficult to maintain airtightness.
  • an object of the present invention is a metal of the ball valve having a plurality of seating portion including an elastic groove in the inner side to be elastically deformed in contact with the ball of the ball valve To provide the seating.
  • the present invention to achieve the above object is a seating body having a flow path; Is formed on the outside of the seating body, the screw portion for coupling with the ball valve; A plurality of fastening grooves formed on a main surface of the seating body for fastening with a ball valve; A seating part formed in the seating body and including an elastic groove in an inner side thereof so as to be elastically deformed in contact with the ball of the ball valve;
  • the elastic groove is composed of a first elastic groove and a second elastic groove, the seating portion provides a ball valve metal seating, characterized in that consisting of the first seating portion, the second seating portion and the third seating portion.
  • the present invention is a seating body having a flow path; Is formed on the outside of the seating body, the screw portion for coupling with the ball valve; A plurality of fastening grooves formed on a main surface of the seating body for fastening with a ball valve; A seating part formed in the seating body and including an elastic groove in an inner side thereof so as to be elastically deformed in contact with the ball of the ball valve;
  • the elastic groove is composed of a first elastic groove, a second elastic groove and a third elastic groove, the seating portion ball valve metal, characterized in that composed of the first seating portion, the second seating portion and the third seating portion Provides seating.
  • first seating portion, the second seating portion and the third seating portion is characterized in that all in contact with the ball.
  • the first and second seating parts may contact the ball, and the third and second seating parts may be configured to support the first and second seating parts.
  • first seating portion is in contact with the ball
  • second seating portion and the third seating portion is characterized in that the structure supporting the first seating portion.
  • the vibration and shock are sequentially absorbed and absorbed by the plurality of seating parts and the elastic grooves, thereby improving durability of the ball valve and maintaining the airtightness.
  • FIG. 1 is a cross-sectional view of a conventional ball valve.
  • FIG. 2 is a perspective view of a ball valve metal seating according to the present invention.
  • FIG 3 is a cross-sectional view showing a first embodiment of a ball valve metal seating according to the present invention.
  • FIG. 4 is a sectional view showing a second embodiment of a ball valve metal seating according to the present invention.
  • FIG. 5 is a view showing a contact method between a ball and a metal valve seat ball according to the first embodiment.
  • FIG. 6 is a view showing a contact method between a ball and a ball valve metal seating according to a second embodiment.
  • Figure 7 shows the results of the elastic force test of the conventional ball valve seat ring and the ball valve metal seat ring according to the present invention.
  • the ball valve 1 shows a cross-sectional view of a conventional ball valve 1, in which the ball valve 1 rotates the lever 2, as shown, to rotate the ball 4, which causes the ball valve 1 to be rotated. Opening and closing of the flow path inside of the flow path, ball valve seat ring 3 in close contact with the ball (4) is provided on both sides of the flow path to prevent leakage of the fluid on the flow path.
  • the ball valve 1 has a structure in which fluid flowing at the inlet 5 flows through the ball 4 to the outlet 6.
  • the ball 4 and the ball valve seat ring 3 are in intimate contact with each other, the ball 4 and the ball valve seat ring 3 are repeatedly rubbed when the ball 4 is rotated to open and close the flow path.
  • the friction surface between the ball balance seating ring 3 and the ball 4 is worn, and a large pressure is applied to the ball 4 at the inlet 5 when the flow path of the ball valve 1 is closed. Therefore, the ball valve seat ring 3 and the ball 4 at the outlet 6 side are more closely adhered to each other, resulting in a phenomenon that the ball valve seat ring 3 at the outlet 6 side is easily worn.
  • the ball valve seat ring 3 having only one elastic part exists, but thus, only one elastic part does not adequately handle the hammer phenomenon and thus maintains durability and airtightness.
  • the elastic portion is a concept including a seating portion and the elastic groove.
  • Figure 2 is a perspective view of the ball valve metal seat ring 10 according to the present invention, the configuration is a seating body having a flow path, a threaded portion 12 for coupling with the ball valve 1, the ball valve 1 A plurality of fastening grooves 11 for fastening with; It is a configuration including a seating portion 13, 14, 15 including an elastic groove in the inner side to be in contact with the ball 4 of the ball valve (1) to elastically deform.
  • the ball valve metal seat ring 10 is formed with a threaded portion 12 on the outer circumferential surface of the seating body having a flow path, the threaded portion 12 is formed for engagement with the ball valve 1, ball valve (1)
  • the internal threaded surface of the seat ring mounting portion of the female threaded portion and the screw portion 12 is formed.
  • a plurality of fastening grooves 11 are disposed on the main surface of the seating body for fastening the screw portion 12 and the ball valve 1.
  • the number of the fastening grooves 11 is suitable about 3 to 5, the most preferred number is three.
  • the ball valve metal seat ring 10 includes a plurality of seat rings.
  • the drawing shows a first seating part 13, a second seating part 14 and a third seating part 15.
  • the present invention has developed a ball valve metal seat ring 10 that can efficiently cope with the hammer phenomenon by using two or three elastic parts of the existing metal seat ring.
  • FIG 3 is a cross-sectional view of the ball valve metal seat ring 10 having two elastic parts, and includes a first elastic groove 16 between the first seating part 13 and the second seating part 14.
  • a second elastic groove 17 is provided between the second seating portion 14 and the third seating portion 15.
  • a fastening groove 11 and a threaded portion 12 for fastening with the ball valve are also shown.
  • FIG. 5 the contact method between the ball valve metal seat ring 10 and the ball 4 having two elastic parts is illustrated.
  • the first seating part 12, the second seating part 13, and the first elastic groove 16 and the second elastic groove 17 directly absorb the vibrations and shocks transmitted from the ball 4. to be.
  • the first elastic groove 16 and the second elastic groove 17 absorbs the vibration and shock transmitted from the ball (4), and secondly the vibration and impact in the third seating portion (14) It is a structure to absorb.
  • FIG. 5C shows the first seating part 12 in contact with the ball 4 and the second and third seating parts 13 and 14 support the first seating part 12.
  • the elastic groove 16 absorbs vibrations and shocks transmitted from the ball 4 and secondarily absorbs vibrations and shocks from the second and third seating parts 13 and 14.
  • 5 (b) and 5 (c) is a structure that is advantageous to the vibration and shock absorption by receiving the vibration to be absorbed divided into primary and secondary.
  • FIG. 4 is a cross-sectional view of the ball valve metal seat ring 10 having three elastic parts, and includes a first elastic groove 16 between the first seating part 13 and the second seating part 14.
  • a second elastic groove 17 is provided between the second seating portion 14 and the third seating portion 15.
  • a third elastic groove 18 is provided below the third seating portion 15.
  • the length of the opposite side of the threaded portion 13 of the third seating portion 15 is configured to be slightly shorter than the length of the threaded portion 12, and is configured to absorb vibration and shock once more.
  • the third elastic groove 18 is provided to increase the service life.
  • the third elastic groove gap L is about 0.5 mm.
  • the ratio of H and L can be used from 40: 1 to 10: 1, preferably 22: 1.
  • the size of the ball valve metal seat ring 10 may vary, but L is preferably determined according to the ratio.
  • a fastening groove 11 and a threaded portion 12 for fastening with the ball valve are also shown.
  • FIG. 6 shows a contact method between the ball valve metal seat ring 10 and the ball 4 having three elastic parts
  • FIG. 6 (a) shows the first seating part 12, the second seating part 13, and The first elastic groove 16, the second elastic groove 17 and the third elastic groove 18 are transmitted from the ball 4 in such a manner that all of the third seating portions 14 contact the ball 4. It is a structure that directly absorbs vibration and shock.
  • FIG. 6 (b) shows that the first and second seating portions 12 and 13 are in contact with the ball 4 and the third and second seating portions 14 and 13 are in contact with the ball 4.
  • the first elastic groove 16 and the second elastic groove 17 absorbs vibration and shock transmitted from the ball 4, and secondly, the third seating portion 14 and the third elastic groove. 18, the structure absorbs vibration and shock.
  • FIG. 6C shows the first seating part 12 in contact with the ball 4 and the second and third seating parts 13 and 14 support the first seating part 12.
  • the elastic groove 16 absorbs vibrations and shocks transmitted from the ball 4 and secondarily absorbs vibrations from the second and third seating parts 13 and 14.
  • 6 (b) and 6 (c) will be said to be advantageous for vibration and shock absorption by receiving the vibration and shock absorbed into the primary and secondary.
  • each of the first embodiment and the second embodiment is accurately contacted and sealed according to the outer circumferential surface of the ball 4 it is possible to perform a complete sealing function of the ball valve metal seating.
  • one elastic part is configured to be two to three, so that vibration and shock can be separately absorbed. This could increase the life of the ball valve metal seating and improve the sealing function.
  • Figure 7 shows the results of the elastic force test of the conventional ball valve seat ring 3 and the ball valve metal seat ring 10 according to the present invention.
  • Figure 7 (a) shows the results of the elastic force test in the case of the conventional ball valve seat ring. The experiment was repeated to open and close 100 times for 60 seconds, and the elastic force change of the elastic part was measured. The x-axis is time and the y-axis represents the elastic force of the elastic portion.
  • an experimental result in which the elastic force of the elastic portion decreases after 3 hours has elapsed. This means that the elastic force of the elastic part is reduced by opening and closing about 18000 times, thereby weakening the sealing function.
  • FIGS. 7 (a) and 7 (b) show the results of the elastic force test of the ball valve metal seating ring 10 according to the second embodiment.
  • the elastic force decreases after 11 hours of hardening, compared to FIGS. 7 (a) and 7 (b). Seemed. Therefore, it can be seen that it is more efficient to arrange three elastic grooves than two elastic grooves.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Taps Or Cocks (AREA)

Abstract

La présente invention porte sur une bague de siège métallique pour un clapet à bille, et, plus précisément, sur une bague de siège métallique pour un clapet à bille dans laquelle plusieurs parties de bague de siège possédant de l'élasticité sont placées dans la bague de siège métallique destinée au clapet à bille qui maintient l'étanchéité à l'air en entrant en contact avec une bille qui sert à ouvrir et fermer un canal du clapet, de telle sorte que la bille et la bague de siège métallique entrent en contact élastiquement l'une avec l'autre, formant par ce moyen une structure étanche à l'air. La présente invention crée la bague de siège métallique pour le clapet à bille, qui comprend un corps de bague de siège présentant une gorge ; une vis qui est formée sur la partie supérieure du corps de bague de siège pour s'accoupler au clapet à bille ; une pluralité de gorges d'accouplement qui sont formées sur la surface du corps de bague de siège pour s'accoupler au clapet à bille ; et des parties de bague de siège qui sont formées dans le corps de la bague de siège et qui présentent des gorges élastiques sur leurs côtés intérieurs de manière à se déformer élastiquement en entrant en contact avec la bille du clapet à bille, les parties de la bague de siège ayant une première partie de bague de siège, une deuxième partie de bague de siège et une troisième partie de bague de siège.
PCT/KR2013/004592 2012-06-04 2013-05-27 Bague de siège métallique pour clapet à bille WO2013183880A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
KR1020120059568A KR101208248B1 (ko) 2012-06-04 2012-06-04 볼 밸브의 메탈 시트링
KR10-2012-0059568 2012-06-04

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WO2013183880A1 true WO2013183880A1 (fr) 2013-12-12

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PCT/KR2013/004592 WO2013183880A1 (fr) 2012-06-04 2013-05-27 Bague de siège métallique pour clapet à bille

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WO (1) WO2013183880A1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR102586841B1 (ko) * 2022-02-23 2023-10-11 동아대학교 산학협력단 초저온 유체용 니들 밸브

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS556569U (fr) * 1978-06-26 1980-01-17
JPS64771U (fr) * 1987-06-22 1989-01-05
KR20010088763A (ko) * 2001-09-04 2001-09-28 손천수 볼밸브의 밸브시트
KR20060037995A (ko) * 2004-10-29 2006-05-03 김철원 고순도 케미컬 이송 호스의 자동연결장치에 장착되는암,수커플링의 결합부 밀폐구조

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS556569U (fr) * 1978-06-26 1980-01-17
JPS64771U (fr) * 1987-06-22 1989-01-05
KR20010088763A (ko) * 2001-09-04 2001-09-28 손천수 볼밸브의 밸브시트
KR20060037995A (ko) * 2004-10-29 2006-05-03 김철원 고순도 케미컬 이송 호스의 자동연결장치에 장착되는암,수커플링의 결합부 밀폐구조

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