KR200360344Y1 - sealing device of metal seat of butterfly valve - Google Patents

sealing device of metal seat of butterfly valve Download PDF

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Publication number
KR200360344Y1
KR200360344Y1 KR20-2004-0017084U KR20040017084U KR200360344Y1 KR 200360344 Y1 KR200360344 Y1 KR 200360344Y1 KR 20040017084 U KR20040017084 U KR 20040017084U KR 200360344 Y1 KR200360344 Y1 KR 200360344Y1
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KR
South Korea
Prior art keywords
seat
valve body
valve
metal
metal sheet
Prior art date
Application number
KR20-2004-0017084U
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Korean (ko)
Inventor
윤일중
Original Assignee
주식회사환금
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Priority to KR20-2004-0017084U priority Critical patent/KR200360344Y1/en
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Publication of KR200360344Y1 publication Critical patent/KR200360344Y1/en

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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
    • F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
    • F16K1/16—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces with pivoted closure-members
    • F16K1/18—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces with pivoted closure-members with pivoted discs or flaps
    • F16K1/22—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces with pivoted closure-members with pivoted discs or flaps with axis of rotation crossing the valve member, e.g. butterfly valves
    • F16K1/226—Shaping or arrangements of the sealing
    • 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
    • F16J—PISTONS; CYLINDERS; SEALINGS
    • F16J15/00—Sealings
    • F16J15/16—Sealings between relatively-moving surfaces
    • F16J15/32—Sealings between relatively-moving surfaces with elastic sealings, e.g. O-rings
    • F16J15/3268—Mounting of sealing rings
    • 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
    • F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
    • F16K1/32—Details
    • F16K1/34—Cutting-off parts, e.g. valve members, seats
    • F16K1/42—Valve 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
    • F16K27/00—Construction of housing; Use of materials therefor
    • F16K27/02—Construction of housing; Use of materials therefor of lift valves
    • F16K27/0209—Check valves or pivoted valves
    • F16K27/0218—Butterfly valves

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Lift Valve (AREA)

Abstract

밸브디스크의 시트면에 착탈되는 메탈시트를 좌우대칭형의 복수개로 분할형성하여 밀착지지시키되, 유체의 흐름방향에 따라 선택적으로 탄성변형되는 메탈시트의 압착부에 의해 밸브디스크와 메탈시트사이의 기밀을 안정된 상태로 유지할 수 있도록 한 것으로,The metal sheet, which is attached to the seat surface of the valve disk, is divided into a plurality of left and right symmetrical parts to be held in close contact with each other, and the airtightness between the valve disk and the metal seat is prevented by the crimping part of the metal sheet that is selectively elastically deformed according to the flow direction of the fluid. I was able to keep it in a stable state,

본 고안에 의한 버터플라이밸브의 양방향 메탈시트 실링장치는, 유체를 이송시키는 관로에 설치되며 회전수단이 구비된 밸브몸체와,The bidirectional metal seat sealing device of the butterfly valve according to the present invention, the valve body is installed in the pipeline for transferring the fluid and is provided with a rotation means,

관로를 개폐시키도록 밸브몸체 내부에 회전수단에 의해 회전가능하게 설치되는 밸브디스크와,A valve disc rotatably installed by a rotation means inside the valve body to open and close the pipeline;

좌우대칭형으로 분할형성되고, 밸브몸체에 장착되는 고정부 및 고정부에 연장형성되어 밸브몸체와 시트홀더의 걸림턱에 지지되는 압착부로 이루어지며, 유체 흐름방향에 따라 압착부가 선택적으로 탄성변형되어 밸브디스크의 시트면을 밀폐시켜 기밀을 유지하는 메탈시트와,It is divided into left and right symmetrical type, and is formed of a fixed part mounted on the valve body and a fixed part extended to the crimping part supported on the latching jaw of the valve body and the seat holder, and the crimping part is selectively elastically deformed according to the fluid flow direction. The metal sheet which seals the seat surface of a disk and maintains airtightness,

밸브몸체에 고정되는 체결부재에 의해 메탈시트를 밸브몸체에 고정지지하는 시트홀더를 구비한다.It is provided with a seat holder for holding the metal sheet fixed to the valve body by a fastening member fixed to the valve body.

Description

버터플라이밸브의 양방향 메탈시트 실링장치{sealing device of metal seat of butterfly valve}Bidirectional metal seat sealing device of butterfly valve {sealing device of metal seat of butterfly valve}

본 고안은 양방향 버터플라이밸브의 밸브디스크 시트면에 밀착되어 유체를 기밀시키도록 밸브몸체에 장착된 좌우대칭형의 메탈시트(metal seat)를 장시간 사용하는 경우에도 메탈시트의 탄성변형에 의해 밸브디스크와 밸브몸체사이를 밀폐시킬 수 있도록 한 버터플라이밸브의 양방향 메탈시트 실링장치에 관한 것이다.The present invention is in close contact with the valve disc seat of the bi-directional butterfly valve and the valve disc and the valve disc due to the elastic deformation of the metal seat even when using the left and right symmetrical metal seat mounted on the valve body to seal the fluid for a long time. It relates to a bidirectional metal seat sealing device of a butterfly valve to seal between the valve body.

더욱 상세하게는, 밸브디스크의 시트면에 착탈되는 메탈시트를 좌우대칭형의 복수개로 분할형성하여 밀착지지시키되, 유체의 흐름방향에 따라 선택적으로 탄성변형되는 메탈시트의 압착부에 의해 밸브디스크와 메탈시트사이의 기밀을 안정된상태로 유지할 수 있도록 한 버터플라이밸브의 양방향 메탈시트 실링장치에 관한 것이다.In more detail, the metal seat to be detached from the seat surface of the valve disk is divided into a plurality of left and right symmetrical to support the close, but the valve disk and the metal by the pressing portion of the metal sheet selectively elastically deformed according to the flow direction of the fluid The present invention relates to a butterfly valve bidirectional metal seat sealing device for maintaining the airtight between the seats in a stable state.

일반적으로, 버터플라이밸브는 각종 산업용수, 오일 등의 유체를 이송시키는 관로에 연결되는 밸브몸체의 내부에 밸브디스크가 회전축으로 인해 회전가능하게 설치되고, 회전축에 연결된 구동장치 구동으로 밸브디스크가 회전시 관로를 개폐하여 유체 흐름을 제어하게 된다.In general, the butterfly valve is installed in the valve body connected to the pipeline for transporting fluids, such as various industrial water, oil, so that the valve disk is rotatable due to the rotary shaft, the valve disk is rotated by the drive device connected to the rotary shaft The fluid flow is controlled by opening and closing the city pipeline.

이때, 밸브몸체의 내주면과 밸브디스크의 외주면에는 서로 압착되어 유체를 기밀시키도록 고무시트재 또는 금속시트재로 형성되는 시트부가 장착된다.At this time, the inner peripheral surface of the valve body and the outer peripheral surface of the valve disk is mounted to the seat portion formed of a rubber sheet material or a metal sheet material to be compressed to seal the fluid.

도 1에 도시된 바와 같이, 종래 기술에 의한 버터플라이밸브용 시트는, 중간에 회전가능하게 장착되는 회전축(미도시됨)에 고정되는 밸브디스크(1)와, 밸브디스크(1)의 시트면(1a)과 면접촉되어 산업용수, 오일, 해수 등의 유체를 기밀시키는 시트(2)가 착탈가능하게 장착되는 밸브몸체(3)와, 시트(2)를 체결부재(5)에 의해 밸브몸체(3)에 고정지지하는 시트홀더(4)(seat holder)를 구비한다.As shown in FIG. 1, the butterfly valve seat according to the prior art includes a valve disc 1 fixed to a rotating shaft (not shown) rotatably mounted in the middle, and a seat surface of the valve disc 1. The valve body 3, which is in surface contact with (1a) and detachably mounted with a seat 2 for hermetically sealing a fluid such as industrial water, oil, seawater, and the like, and the seat 2 is connected to the valve body by the fastening member 5. A seat holder 4 (seat holder) fixed to (3) is provided.

이때, 전술한 시트(2)는 고온 또는 고압의 유체, 화학물질 등에 대해 내구성, 내식성을 갖도록 고무재(또는, 비교적 단단한 재질의 테프론재가 사용됨)가 사용된다.At this time, the above-described sheet 2 is used a rubber material (or a Teflon material of a relatively hard material) is used to have durability and corrosion resistance to fluids, chemicals and the like of high temperature or high pressure.

종래 기술에 의한 시트(2)를 전술한 밸브디스크(1)의 시트면(1a)에 압축시켜 시트(2)의 반발력으로 유체를 차단시킨다. 이로 인해 시트(2) 내부에 응력이 발생되어 장기간 사용시 고온 또는 고압의 유체 압력으로 인해 소성변형되어 경도가 높아지므로 유체에 대해 신축성이 약하여 복원력이 떨어지는 문제점을 갖는다.The seat 2 according to the prior art is compressed to the seat face 1a of the valve disc 1 described above to block the fluid by the repulsive force of the seat 2. As a result, a stress is generated in the sheet 2 and plastic deformation due to high or high pressure of the fluid pressure when used for a long time increases the hardness, so that the elasticity of the fluid is weak and the restoring force is poor.

또한, 양방향으로 이송되는 유체를 제어하도록 시트(2)를 사용하는 경우, 전술한 시트(2)의 신축성 저하로 인해 유체 흐름에 따른 시트(2) 적응력이 떨어져 사용수명이 짧아 자주 교체하게 되므로 유지관리비용이 증대되는 문제점을 갖는다.In addition, when the seat 2 is used to control the fluid conveyed in both directions, the elasticity of the sheet 2 described above is reduced, the adaptability of the seat (2) due to the fluid flow is lowered, the service life is short, so it is frequently replaced There is a problem that the management cost is increased.

본 고안의 목적은, 밸브디스크의 디스크면에 밀착되는 메탈시트를 좌우대칭형으로 분할형성하여, 유체의 흐름방향에 따라 메탈시트의 압착부가 선택적으로 탄성변형되므로 복원력을 향상시키고, 장기간 사용되는 경우에도 메탈시트의 탄성변형에 의해 밸브디스크와 메탈시트사이의 기밀을 안정된 상태로 유지할 수 있도록 한 버터플라이밸브의 양방향 메탈시트 실링장치를 제공함에 있다.The object of the present invention is to divide the metal sheet which is in close contact with the disk surface of the valve disk into the left and right symmetrical partition, to improve the restoring force, because the pressing portion of the metal sheet is selectively elastically deformed according to the flow direction of the fluid, even when used for a long time It is to provide a bidirectional metal seat sealing device of the butterfly valve to maintain the airtight between the valve disk and the metal seat in a stable state by the elastic deformation of the metal seat.

본 고안의 다른 목적은, 메탈시트의 탄성변형에 의해 유체의 흐름방향에 따른 메탈시트의 적응력이 뛰어나게 되므로, 양방향으로 이송되는 유체를 제어하도록 메탈시트를 사용하는 경우에도 기밀성을 향상시킬 수 있도록 한 버터플라이밸브의 양방향 메탈시트 실링장치를 제공하는 것이다.Another object of the present invention, because the elastic deformation of the metal sheet is excellent in the adaptability of the metal sheet in accordance with the flow direction of the fluid, so as to improve the airtightness even when using the metal sheet to control the fluid transferred in both directions To provide a two-way metal seat sealing device of the butterfly valve.

도 1은 종래 기술에 의한 버터플라이밸브용 시트의 개략도,1 is a schematic view of a seat for a butterfly valve according to the prior art,

도 2는 본 고안에 의한 버터플라이밸브의 양방향 메탈시트 실링장치의 요부발췌확대도,Figure 2 is an enlarged view of the main portion of the bidirectional metal seat sealing device of the butterfly valve according to the present invention,

도 3 및 도 4는 본 고안에 의한 버터플라이밸브의 양방향 메탈시트 실링장치의 작동을 나타내는 사용상태도,3 and 4 is a state diagram showing the operation of the two-way metal seat sealing device of the butterfly valve according to the present invention,

도 5는 본 고안에 의한 버터플라이밸브의 양방향 메탈시트 실링장치의 장착됨을 나타내는 도면이다.5 is a view showing the mounting of the bidirectional metal seat sealing device of the butterfly valve according to the present invention.

*도면중 주요 부분에 사용된 부호의 설명* Explanation of symbols used in the main part of the drawing

10; 밸브몸체10; Valve body

20; 밸브디스크20; Valve disc

30,30a; 고정부30,30a; Fixture

40,40a; 걸림턱40,40a; Jam

50,50a; 압착부50,50a; Crimp

60,60a; 메탈시트60,60a; Metal sheet

70; 체결부재70; Fastening member

80; 시트홀더80; Seat holder

90,90a; 결합홈90,90a; Combined groove

100; 제1탄성부재100; First elastic member

110; 결합홈110; Combined groove

120; 제2탄성부재120; Second elastic member

130,130a; 탄성연결간130,130a; Between elastic connections

140,140a; 경사부140,140a; Slope

전술한 본 고안의 목적은, 유체를 이송시키는 관로에 설치되며 회전수단이 구비된 밸브몸체와,An object of the present invention described above, the valve body is installed in the pipeline for transporting fluid and provided with a rotating means,

관로를 개폐시키도록 밸브몸체 내부에 회전수단에 의해 회전가능하게 설치되는 밸브디스크와,A valve disc rotatably installed by a rotation means inside the valve body to open and close the pipeline;

좌우대칭형으로 분할형성되고, 밸브몸체에 장착되는 고정부 및 고정부에 연장형성되어 밸브몸체와 시트홀더의 걸림턱에 지지되는 압착부로 이루어지며, 유체 흐름방향에 따라 압착부가 선택적으로 탄성변형되어 밸브디스크의 시트면을 밀폐시켜 기밀을 유지하는 메탈시트와,It is divided into left and right symmetrical type, and is formed of a fixed part mounted on the valve body and a fixed part extended to the crimping part supported on the latching jaw of the valve body and the seat holder, and the crimping part is selectively elastically deformed according to the fluid flow direction. The metal sheet which seals the seat surface of a disk and maintains airtightness,

밸브몸체에 고정되는 체결부재에 의해 메탈시트를 밸브몸체에 고정지지하는 시트홀더를 구비하는 것을 특징으로 하는 버터플라이밸브의 양방향 메탈시트 실링장치를 제공함에 의해 달성된다.It is achieved by providing a bidirectional metal seat sealing device of the butterfly valve, characterized in that it comprises a seat holder for holding the metal seat fixed to the valve body by a fastening member fixed to the valve body.

바람직한 실시예에 의하면, 전술한 메탈시트는,According to a preferred embodiment, the above-described metal sheet,

체결부재에 의한 시트홀더 압착으로 밸브몸체에 장착되는 고정부와, 고정부에 일체형으로 연장형성되고, 유체 흐름방향에 따라 밸브디스크의 시트면에 선택적으로 가압되는 압착부와, 고정부에 대해 압착부가 탄성변형을 갖도록 고정부와 압착부를 연결하는 탄성연결간과, 압착부 가장자리에 경사지게 연장형성되어 밸브몸체와 시트홀더의 걸림턱에 안착되는 환형의 경사부를 구비하여 이루어지며,The holding part mounted on the valve body by pressing the seat holder by the fastening member, the pressing part which is formed integrally extended to the fixing part, is selectively pressed on the seat surface of the valve disc according to the fluid flow direction, and the pressing part against the fixing part. And an annular inclined portion formed to be inclined at the edge of the crimping portion and seated on the latching jaw of the valve body and the seat holder so as to have an additional elastic deformation.

일측 메탈시트가 유체 흐름방향에 따라 걸림턱으로 부터 이탈시 압착부가 탄성변형되어 밸브디스크의 시트면에 밀착되며, 타측 메탈시트가 유체 흐름방향에 대항하여 걸림턱에 지탱되어 탄성변형되는 일측 메탈시트를 지지한다.When one side of the metal sheet is separated from the locking jaw according to the flow direction of the fluid, the crimping part is elastically deformed to be in close contact with the seat surface of the valve disc, and the other side of the metal sheet is supported on the locking jaw against the fluid flow direction and the elastic sheet is elastically deformed. Support.

또한, 전술한 메탈시트의 고정부에 대향되게 형성된 결합홈에 장착되는 제1탄성부재와, 메탈시트의 고정부측면과 밸브몸체사이에 형성된 결합홈에 장착되는제2탄성부재를 구비한다.In addition, the first elastic member is mounted to the coupling groove formed to face the fixing portion of the metal sheet described above, and the second elastic member mounted to the coupling groove formed between the side of the fixing portion of the metal sheet and the valve body.

이하, 본 고안의 바람직한 실시예를 첨부도면을 참조하여 설명하되, 이는 본 고안이 속하는 기술 분야에서 통상의 지식을 가진 자가 고안을 용이하게 실시할 수 있을 정도로 상세하게 설명하기 위한 것이지, 이로 인해 본 고안의 기술적인 사상 및 범주가 한정되는 것을 의미하지는 않는 것이다.Hereinafter, preferred embodiments of the present invention will be described with reference to the accompanying drawings, which are intended to be described in detail so that those skilled in the art to which the present invention pertains can easily implement the present invention. It does not mean that the technical spirit and scope of the invention is limited.

도 2 내지 도 5에 도시된 바와 같이, 본 고안에 의한 버터플라이밸브의 양방향 메탈시트 실링장치는, 생활용수, 오일, 가스 등의 유체를 이송시키는 관로에 설치되며 회전수단이 구비된 밸브몸체(10)(valve body)와, 관로를 개폐시키도록 밸브몸체(10) 내부에 미도시된 회전수단에 연결되는 회전축(10a)에 의해 회전가능하게 설치되는 밸브디스크(20)(valve disc)를 구비한다.2 to 5, the two-way metal seat sealing device of the butterfly valve according to the present invention, the valve body is installed in the pipeline for transporting fluid such as living water, oil, gas, etc. 10) and a valve disc 20 rotatably installed by a rotating shaft 10a connected to a rotating means not shown in the valve body 10 to open and close the pipeline. do.

또한, 좌우대칭형으로 분할형성되고, 밸브몸체(10)에 장착되는 고정부(30,30a) 및 고정부(30,30a)에 일체형으로 연장형성되어 밸브몸체(10)와 시트홀더(80)의 외측면에 형성된 걸림턱(40,40a)에 지지되는 압착부(50,50a)로 이루어지며, 유체 흐름방향에 따라 압착부(50,50a)가 선택적으로 탄성변형되어 밸브디스크(20)의 시트면(20a)을 밀폐시켜 기밀을 유지하는 금속재(바람직하게는, 내마모성 및 탄성복원력이 뛰어난 스테인레스재가 사용됨)의 메탈시트(60,60a)(metal seat)를 구비한다.In addition, it is divided into left and right symmetrical type, and is formed integrally extending to the fixing portion (30, 30a) and the fixing portion (30, 30a) mounted on the valve body 10 of the valve body 10 and the seat holder 80 Compression parts 50 and 50a are supported on the locking projections 40 and 40a formed on the outer surface, and the compression parts 50 and 50a are selectively elastically deformed according to the fluid flow direction so that the seat of the valve disc 20 A metal seat (60, 60a) (metal seat) of a metal material (preferably, a stainless material excellent in wear resistance and elastic restoring force is used) which seals the surface 20a and keeps airtightness is provided.

또한, 전술한 밸브몸체(10)에 고정되는 체결부재(70)에 의해메탈시트(60,60a)를 밸브몸체(10)에 고정지지하는 시트홀더(80)와, 메탈시트(60,60a)의 고정부(30,30a)에 대향되게 형성된 결합홈(90,90a)에 장착되는 제1탄성부재(100)(고무재, 테트론재 또는 석면재 등의 O링이 사용됨)와, 메탈시트(60a)의 고정부(30a) 외측면과 밸브몸체(10)사이에 형성된 결합홈(110)에 장착되는 제2탄성부재(120)(고무재, 테프론재, 석면재 등의 O링이 사용됨)를 구비한다.In addition, the seat holder 80 and the metal seat (60, 60a) for holding the metal seat (60, 60a) fixed to the valve body 10 by the fastening member 70 is fixed to the valve body 10 described above First elastic member 100 (O-ring, such as rubber, Tetron or asbestos material is used) mounted to the coupling groove (90, 90a) formed to face the fixing portion (30, 30a) of the metal sheet The second elastic member 120 (rubber material, Teflon material, asbestos material, etc.) mounted on the coupling groove 110 formed between the outer surface of the fixing part 30a of the 60a and the valve body 10 is used. ).

이때, 전술한 메탈시트(60,60a)는,At this time, the above-described metal sheet (60, 60a),

체결부재(70)에 의한 시트홀더(80) 압착으로 밸브몸체(10)에 장착되는 고정부(30,30a)와, 고정부(30,30a)에 일체형으로 연장형성되고, 유체 흐름방향에 따라 밸브디스크(20)의 시트면(20a)에 선택적으로 가압되는 압착부(50,50a)와, 고정부(30,30a)에 대해 압착부(50,50a)가 탄성변형을 갖도록 고정부(30,30a)와 압착부(50,50a)를 연결하는 탄성연결간(130,130a)과, 압착부(50,50a) 가장자리에 경사지게 연장형성되어 밸브몸체(10)와 시트홀더(80)의 걸림턱(40,40a)에 안착되는 환형의 경사부(140,140a)를 구비한다.The seat holder 80 is compressed by the fastening member 70 and integrally extended to the fixing parts 30 and 30a mounted to the valve body 10 and the fixing parts 30 and 30a. The pressing portions 50 and 50a selectively pressed against the seat surface 20a of the valve disc 20 and the fixing portions 30 so that the pressing portions 50 and 50a have elastic deformation with respect to the fixing portions 30 and 30a. Elastic connection between the connecting portion (130, 130a) and the pressing portion (50, 50a), 30a and the inclined extension to the edge of the pressing portion (50, 50a) is formed, the locking jaw of the valve body 10 and the seat holder 80 And annular inclined portions 140 and 140a seated at 40 and 40a.

도면부호중 150은 나사공(160a)에 결합되는 체결부재(160)에 의해 밸브시트(160)를 밸브디스크(20)에 고정하는 경우 나사공(160b)에 결합되어 밸브시트(160)의 고정된 위치를 유지하는 위치조절볼트이다.In the reference numeral 150 is fixed to the valve seat 160 is coupled to the screw hole 160b when the valve seat 160 is fixed to the valve disc 20 by the fastening member 160 coupled to the screw hole 160a. Positioning bolt to maintain the position.

이하에서, 본 고안에 의한 버터플라이밸브의 양방향 메탈시트 실링장치의 사용예를 첨부된 도면을 참조하여 설명한다.Hereinafter, a use example of a bidirectional metal seat sealing device of a butterfly valve according to the present invention will be described with reference to the accompanying drawings.

도 5는 전술한 밸브디스크(20)가 회전수단 구동으로 회전축(10a)에 의해 회전되어 밸브몸체(10)의 관로를 개방시킨 상태를 도시한 도면이다.5 is a view showing a state in which the above-described valve disk 20 is rotated by the rotating shaft 10a by the rotation means driving to open the conduit of the valve body 10.

도시된 바와 같이, 미도시된 관로를 통과하는 유체 흐름을 제어할 수 있도록 회전수단(미도시됨)이 구비된 밸브몸체(10)가 관로에 개폐가능하게 설치된다. 회전수단 구동으로 회전축(10a)이 도면상, 반시계방향으로 회전됨에 따라 밸브몸체(10) 내부에 회전가능하게 설치된 밸브디스크(20)가 도면상, 반시계방향(화살표로 표기됨)으로 회전되어 전술한 관로를 개방시킨다.As shown, the valve body 10 provided with a rotating means (not shown) is provided to open and close the pipeline to control the fluid flow through the pipeline not shown. As the rotating shaft 10a is rotated counterclockwise in the drawing by the rotation means, the valve disk 20 rotatably installed in the valve body 10 is rotated counterclockwise (indicated by arrow) in the drawing. To open the aforementioned conduit.

즉, 밸브디스크(20) 외측면에 장착된 밸브시트(160)가 밸브몸체(10)의 메탈시트(60,60a)로 부터 이탈되어 개방되므로, 관로를 따라 이송되는 유체는 개방된 밸브몸체(10)의 유체 통로를 통과할 수 있게 된다.That is, since the valve seat 160 mounted on the outer surface of the valve disc 20 is separated from the metal seats 60 and 60a of the valve body 10 and is opened, the fluid transferred along the conduit is opened to the valve body ( 10) to pass through the fluid passage.

한편, 도 2에 도시된 바와 같이, 전술한 밸브몸체(10)에 대해 밸브디스크(20)가 닫힌 초기상태를 도시한 것으로, 체결부재(70)에 의해 밸브몸체(10) 내측면에 장착된 한쌍의 메탈시트(60,60a)가 밸브디스크(20)의 시트면(20a)에 밀착되어 유체의 기밀을 유지할 수 있게 된다.On the other hand, as shown in Figure 2, it shows the initial state that the valve disk 20 is closed with respect to the above-described valve body 10, it is mounted on the valve body 10 inner surface by the fastening member 70 The pair of metal sheets 60 and 60a are in close contact with the seat surface 20a of the valve disc 20 to maintain the airtightness of the fluid.

이때, 좌우대칭형으로 형성된 메탈시트(60,60a)의 탄성연결간(130,130a)의 접촉부(C)는 고정부(30,30a)의 수직중심선상에 위치하는 초기상태를 유지한다.At this time, the contact portion (C) of the elastic connection between the 130 and 130a of the metal sheet (60, 60a) formed in the left-right symmetry maintains the initial state located on the vertical center line of the fixing portion (30, 30a).

도 3에 도시된 바와 같이, 전술한 밸브몸체(10)의 관로를 따라 이송되는 유체(화살표 "F1"으로 표기됨)가 도면상, 우측방향(화살표 "A"방향으로 표기됨)으로 이송되는 경우, 전술한 메탈시트(60)의 경사부(140)가 시트홀더(80)의 걸림턱(40)으로 부터 이탈된다.As shown in FIG. 3, the fluid (denoted by arrow “F1”) conveyed along the conduit of the valve body 10 described above is conveyed in the right direction (denoted by the arrow “A” direction) in the drawing. In this case, the inclined portion 140 of the metal sheet 60 is separated from the locking step 40 of the seat holder 80.

이로 인해, 걸림턱(40)과 경사부(140)사이의 틈새를 통하여 유입되는 유체의 압력으로 인해, 메탈시트(60)의 압착부(50)가 밸브디스크(20)의 시트면(20a)에 밀착되면서 밸브디스크(20)의 반경방향으로 가압된다(도면상, 상방향의 화살표로 표기됨).Thus, due to the pressure of the fluid flowing through the gap between the locking step 40 and the inclined portion 140, the pressing portion 50 of the metal seat 60 is the seat surface 20a of the valve disc 20 While being in close contact with the valve disk 20 is pressed in the radial direction (in the drawing, indicated by the upward arrow).

이때, 메탈시트(60a)의 경사부(140a)는 밸브몸체(10)의 걸림턱(40a)에 의해 지지된 상태에서, 메탈시트(60a)의 압착부(50a)가 밸브디스크(20)의 시트면(20a)에 밀착되므로, 유체(F1)의 압력으로 인해 탄성변형되어 일측으로 편심이동되는(도면상, 우측방향으로 편심됨) 메탈시트(60)의 탄성연결간(130)을 메탈시트(60a)의 탄성연결간(130a)에 의해 지지한다.At this time, the inclined portion 140a of the metal seat 60a is supported by the latching jaw 40a of the valve body 10, and the crimping portion 50a of the metal seat 60a of the valve seat 20 Since the metal sheet 60 is in close contact with the sheet surface 20a, the elastic connection between the elastic sheet 130 of the metal sheet 60 is elastically deformed due to the pressure of the fluid F1 and eccentrically moved to one side. It is supported by the elastic connecting rod 130a of 60a.

따라서, 밸브몸체(10) 내측면에 장착된 한쌍으로 이루어진 대칭형 메탈시트(60,60a)가 밸브디스크(20)의 시트면(20a)에 밀착된 상태를 유지하므로 유체의 기밀을 유지할 수 있게 된다.Therefore, the pair of symmetrical metal seats 60 and 60a mounted on the inner surface of the valve body 10 maintain the state of being in close contact with the seat surface 20a of the valve disc 20, thereby maintaining the airtightness of the fluid. .

도 4에 도시된 바와 같이, 전술한 밸브몸체(10)의 관로를 따라 이송되는 유체(화살표 "F2"로 표기됨)가 도면상, 좌측방향(화살표 "B"방향으로 표기됨)으로 이송되는 경우, 전술한 메탈시트(60a)의 경사부(140a)가 밸브몸체(10)의 걸림턱(40a)으로 부터 이탈된다.As shown in FIG. 4, the fluid (denoted by the arrow "F2") conveyed along the conduit of the valve body 10 described above is conveyed in the left direction (indicated by the arrow "B" direction) in the drawing. In this case, the inclined portion 140a of the metal sheet 60a is separated from the locking jaw 40a of the valve body 10.

이로 인해, 전술한 걸림턱(40a)과 경사부(140a)사이의 틈새를 통하여 유입되는 유체(F2)의 압력으로 인해, 메탈시트(60a)의 압착부(50a)가 밸브디스크(20)의 시트면(20a)에 밀착되면서 밸브디스크(20)의 반경방향으로 가압된다(도면상, 상방향의 화살표로 표기됨).Thus, due to the pressure of the fluid F2 introduced through the gap between the locking step 40a and the inclined portion 140a, the pressing portion 50a of the metal seat 60a may cause While being in close contact with the seat surface 20a, it is pressed in the radial direction of the valve disc 20 (in the drawing, indicated by an upward arrow).

이때, 메탈시트(60)의 경사부(140)는 시트홀더(80)의 걸림턱(40)에 의해 지지된 상태에서, 메탈시트(60)의 압착부(50)가 밸브디스크(20)의 시트면(20a)에 밀착되므로, 유체(F)의 압력으로 인해 탄성변형되어 일측으로 편심이동되는(도면상, 좌측방향을 말함) 메탈시트(60a)의 탄성연결간(130a)을 메탈시트(60)의 탄성연결간(130)에 의해 지지한다.At this time, the inclined portion 140 of the metal seat 60 is supported by the locking step 40 of the seat holder 80, the pressing portion 50 of the metal seat 60 of the valve disc 20 Since the metal sheet 60a is in close contact with the sheet surface 20a, the elastic connection between the elastic sheet 130a of the metal sheet 60a is elastically deformed due to the pressure of the fluid F and eccentrically moved to one side. 60 is supported by the elastic connecting rod 130.

따라서, 밸브몸체(10) 내측면에 장착된 한쌍으로 이루어진 대칭형 메탈시트(60,60a)가 밸브디스크(20)의 시트면(20a)에 밀착된 상태를 유지하므로 유체의 기밀을 유지할 수 있게 된다.Therefore, the pair of symmetrical metal seats 60 and 60a mounted on the inner surface of the valve body 10 maintain the state of being in close contact with the seat surface 20a of the valve disc 20, thereby maintaining the airtightness of the fluid. .

이상에서와 같이, 본 고안에 의한 버터플라이밸브의 양방향 메탈시트 실링장치는 아래와 같은 이점을 갖는다.As described above, the bidirectional metal seat sealing device of the butterfly valve according to the present invention has the following advantages.

양방향 버터플라이밸브의 시트에 있어서, 밸브디스크의 디스크면에 밀착되는 메탈시트를 좌우대칭형으로 분할형성하여, 유체의 흐름방향에 따라 메탈시트의 압착부가 선택적으로 탄성변형되므로 복원력을 향상시키고, 장기간 사용하는 경우에도 메탈시트의 탄성변형에 의해 밸브디스크와 메탈시트사이의 기밀을 안정된 상태로 유지하므로 신뢰성을 높일 수 있다.In the seat of the bi-directional butterfly valve, the metal sheet which is in close contact with the disk surface of the valve disc is divided into left and right symmetrical forms, and the crimping portion of the metal sheet is selectively elastically deformed according to the flow direction of the fluid, so that the restoring force is improved and used for a long time. Even when the metal sheet is elastically deformed, the airtightness between the valve disc and the metal seat is maintained in a stable state, thereby increasing reliability.

또한, 메탈시트의 탄성변형에 의해 유체의 흐름방향에 따른 메탈시트의 적응력이 뛰어나게 되므로, 양방향으로 이송되는 유체를 제어하도록 메탈시트를 사용하는 경우에도 기밀성 및 안정성을 향상시킬 수 있다.In addition, the elastic deformation of the metal sheet is excellent in the adaptability of the metal sheet in accordance with the flow direction of the fluid, it is possible to improve the airtightness and stability even when using the metal sheet to control the fluid transferred in both directions.

Claims (4)

유체를 이송시키는 관로에 설치되며 회전수단이 구비된 밸브몸체;A valve body installed in a conduit for transferring fluid and having a rotating means; 상기 관로를 개폐시키도록 상기 밸브몸체 내부에 상기 회전수단에 의해 회전가능하게 설치되는 밸브디스크;A valve disc rotatably installed in the valve body by the rotating means to open and close the conduit; 좌우대칭형으로 분할형성되고, 상기 밸브몸체에 장착되는 고정부 및 상기 고정부에 연장형성되어 상기 밸브몸체와 시트홀더의 걸림턱에 지지되는 압착부로 이루어지며, 유체 흐름방향에 따라 상기 압착부가 선택적으로 탄성변형되어 상기 밸브디스크의 시트면을 밀폐시켜 기밀을 유지하는 메탈시트; 및It is divided into left and right symmetrical type, and is formed of a fixed portion mounted to the valve body and the pressing portion is extended to the fixed portion supported on the locking jaw of the valve body and the seat holder, the pressing portion selectively according to the fluid flow direction A metal seat elastically deformed to seal the seat surface of the valve disc to maintain airtightness; And 상기 밸브몸체에 고정되는 체결부재에 의해 상기 메탈시트를 상기 밸브몸체에 고정지지하는 시트홀더를 구비하는 것을 특징으로 하는 버터플라이밸브의 양방향 메탈시트 실링장치.Bidirectional metal seat sealing device of the butterfly valve characterized in that it comprises a seat holder for holding the metal seat fixed to the valve body by a fastening member fixed to the valve body. 청구항 1에 있어서, 상기 메탈시트는;The method according to claim 1, wherein the metal sheet; 상기 체결부재에 의한 상기 시트홀더 압착으로 상기 밸브몸체에 장착되는 고정부;A fixing part mounted to the valve body by pressing the seat holder by the fastening member; 상기 고정부에 일체형으로 연장형성되고, 유체 흐름방향에 따라 상기 밸브디스크의 시트면에 선택적으로 밀착되는 압착부;A compression unit integrally formed with the fixed part and selectively contacted with the seat surface of the valve disc according to a fluid flow direction; 상기 고정부에 대해 상기 압착부가 탄성변형을 갖도록 상기 고정부와 상기압착부를 연결하는 탄성연결간; 및An elastic connection connecting the fixed part and the compressed part so that the compressed part has an elastic deformation with respect to the fixed part; And 상기 압착부 가장자리에 경사지게 연장형성되어 상기 밸브몸체와 시트홀더의 걸림턱에 안착되는 환형의 경사부를 구비하여 이루어지며,It is formed to be inclined to the edge of the crimping portion is formed with an annular inclined portion seated on the locking jaw of the valve body and seat holder 일측 메탈시트가 유체 흐름방향에 따라 상기 걸림턱으로 부터 이탈시 상기 압착부가 탄성변형되어 상기 밸브디스크의 시트면에 밀착되며, 타측 메탈시트가 유체 흐름방향에 대항하여 상기 걸림턱에 지탱되어 탄성변형되는 일측 메탈시트를 지지하는 것을 특징으로 하는 버터플라이밸브의 양방향 메탈시트 실링장치.When one side of the metal sheet is separated from the locking jaw according to the flow direction of the fluid, the crimping portion is elastically deformed to be in close contact with the seat surface of the valve disc, and the other side of the metal sheet is supported on the locking jaw against the direction of fluid flow and elastic deformation. Bidirectional metal seat sealing device of the butterfly valve, characterized in that for supporting one side of the metal seat. 청구항 1 또는 청구항 2에 있어서, 상기 메탈시트의 고정부에 대향되게 형성된 결합홈에 장착되는 제1탄성부재를 구비하는 것을 특징으로 하는 버터플라이밸브의 양방향 메탈시트 실링장치.The two-way metal seat sealing device of a butterfly valve according to claim 1 or 2, further comprising a first elastic member mounted in a coupling groove formed to face the fixing part of the metal seat. 청구항 1 또는 청구항 2에 있어서, 상기 메탈시트의 고정부에 대향되게 형성된 결합홈에 장착되는 제1탄성부재와, 상기 메탈시트의 고정부측면과 상기 밸브몸체사이에 형성된 결합홈에 장착되는 제2탄성부재를 구비하는 것을 특징으로 하는 버터플라이밸브의 양방향 메탈시트 실링장치.The method of claim 1 or claim 2, wherein the first elastic member is mounted in the coupling groove formed to face the fixing portion of the metal sheet, and the second mounting portion is mounted in the coupling groove formed between the side of the fixing portion of the metal sheet and the valve body Bidirectional metal seat sealing device of the butterfly valve, characterized in that it comprises an elastic member.
KR20-2004-0017084U 2004-06-17 2004-06-17 sealing device of metal seat of butterfly valve KR200360344Y1 (en)

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101307321B1 (en) 2013-02-25 2013-09-10 서광공업 주식회사 Butterfly valve having double cushion
KR101485063B1 (en) * 2014-04-25 2015-01-22 (주) 삼진정밀 Multiple sealing Butterfly valve
KR101565019B1 (en) * 2014-09-15 2015-11-03 (주) 삼진정밀 Multiple sealing Butterfly valve
KR102219379B1 (en) * 2020-12-24 2021-02-22 최준영 Butterfly valve

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101307321B1 (en) 2013-02-25 2013-09-10 서광공업 주식회사 Butterfly valve having double cushion
KR101485063B1 (en) * 2014-04-25 2015-01-22 (주) 삼진정밀 Multiple sealing Butterfly valve
KR101565019B1 (en) * 2014-09-15 2015-11-03 (주) 삼진정밀 Multiple sealing Butterfly valve
KR102219379B1 (en) * 2020-12-24 2021-02-22 최준영 Butterfly valve

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