WO2022163874A1 - Butterfly-type gate valve - Google Patents

Butterfly-type gate valve Download PDF

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Publication number
WO2022163874A1
WO2022163874A1 PCT/KR2021/001033 KR2021001033W WO2022163874A1 WO 2022163874 A1 WO2022163874 A1 WO 2022163874A1 KR 2021001033 W KR2021001033 W KR 2021001033W WO 2022163874 A1 WO2022163874 A1 WO 2022163874A1
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WO
WIPO (PCT)
Prior art keywords
opening
closing member
butterfly
gate valve
flow path
Prior art date
Application number
PCT/KR2021/001033
Other languages
French (fr)
Korean (ko)
Inventor
한승호
강효림
박주향
Original Assignee
동아대학교 산학협력단
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Publication of WO2022163874A1 publication Critical patent/WO2022163874A1/en

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    • 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
    • F16K3/00—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing
    • F16K3/22—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing with sealing faces shaped as surfaces of solids of revolution
    • 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
    • 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
    • F16K1/221—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 specially adapted operating means 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
    • 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
    • F16K1/223—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 with a plurality of valve members
    • 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
    • F16K31/00—Actuating devices; Operating means; Releasing devices
    • F16K31/02—Actuating devices; Operating means; Releasing devices electric; magnetic
    • F16K31/04—Actuating devices; Operating means; Releasing devices electric; magnetic using a motor
    • 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
    • F16K31/00—Actuating devices; Operating means; Releasing devices
    • F16K31/44—Mechanical actuating means
    • F16K31/53—Mechanical actuating means with toothed gearing
    • 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
    • F16K47/01—Damping of valve members
    • 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
    • F16K47/02—Means in valves for absorbing fluid energy for preventing water-hammer or noise

Definitions

  • the present invention relates to a gate valve, and more particularly, to a butterfly-type gate valve capable of adjusting and opening and closing a valve flow path while two opening and closing members in the form of a semi-circular disk are folded or unfolded.
  • a valve is a device that controls the flow rate, flow rate, pressure, etc. of a fluid flowing in a pipe, and has been developed and used in various types.
  • valves there are a gate valve used for the main purpose of blocking the fluid and a globe valve mainly used for the purpose of controlling the flow rate of the fluid.
  • the gate valve is a valve that opens and closes the flow path by moving the disk at a right angle to the direction in which the fluid flows.
  • This gate valve has a simple structure, so it can be installed at a low cost and is effective in blocking the flow path.
  • the present invention is to solve the above problems, and an object of the present invention is to shorten the opening and closing time by configuring the opening and closing member for opening and closing the valve passage in the disk shape of the butterfly valve, which can reduce the size of the butterfly gate to provide a valve.
  • a butterfly-type gate valve for achieving the above object includes: a valve body having a flow path in which an inlet through which a fluid is introduced and an outlet through which a fluid is discharged, respectively, formed in a front portion and a rear portion, respectively; a first opening/closing member and a second opening/closing member in the form of a semi-circular disk that opens and closes the flow path while being folded or unfolded while rotating in opposite directions inside the flow path of the valve body; and a driving means for transmitting rotational force to the first opening and closing member and the second opening and closing member.
  • a ring-shaped upper shaft connection part in which a rotation shaft is formed to extend in the vertical direction on the inner edge of the first opening and closing member, and the upper and lower portions of the rotation shaft are respectively relatively rotatably inserted into the upper and lower ends of the second opening and closing member and a lower shaft connection portion is formed, and the upper end of the rotation shaft and the upper shaft connection portion are connected to the driving means to receive rotational force.
  • the driving means includes a drive shaft rotating by a motor or a person, first and second drive gears coupled to the drive shaft to rotate, and a lower end coupled to the upper shaft connection portion to transmit a rotational force to the upper shaft connection portion
  • the butterfly-type gate valve of the present invention may further include a flexible member installed on front surfaces of the first opening and closing member and the second opening and closing member to prevent vibration and cavitation while being elastically deformed by the fluid when the flow path is opened. .
  • the flexible member may include a shell material of an elastic material, and a filler filled in the shell material.
  • the filler may be in powder form.
  • the butterfly-type gate valve of the present invention is installed on the rear surface of at least one of the first opening/closing member and the second opening/closing member to absorb the shock when the first opening/closing member and the second opening/closing member are fully folded and come into contact with each other It may further include a buffer member that does.
  • a butterfly-type gate valve includes: a valve body having a flow path in which an inlet through which a fluid is introduced and an outlet through which a fluid is discharged, respectively, formed in a front portion and a rear portion, respectively; a first opening/closing member and a second opening/closing member in the form of a semi-circular disk that opens and closes the flow path while being folded or unfolded while rotating in opposite directions inside the flow path of the valve body; a rotation shaft formed to extend vertically on an inner edge of the first opening/closing member; a ring-shaped upper shaft connection part and a lower shaft connection part formed on each of the upper and lower ends of the second opening/closing member, the upper and lower parts of the rotation shaft being rotatably inserted, respectively; A drive shaft rotated by a motor or a person, first and second drive gears coupled to the drive shaft to rotate, and a lower end coupled to the upper shaft connection portion to transmit rotational force to the upper shaft connection portion.
  • a stem an inner stem that penetrates the hollow portion of the outer stem and is installed rotatably relative to the outer stem, the lower end is coupled to the upper end of the rotary shaft to transmit rotational force to the rotary shaft, and a first driven gear coupled to the inner stem and a transmission gear meshed with the first drive gear and the first driven gear between the first drive gear and the first driven gear, and a second driven gear coupled to the outer stem and meshed with the second drive gear. and a driving means for transmitting a rotational force to the first opening and closing member and the second opening and closing member.
  • the first opening and closing member and the second opening and closing member in the form of a semi-circular disk rotate in opposite directions at the same time to open and close the flow path, there is an effect that the opening and closing time can be significantly shortened.
  • the overall size of the valve may be miniaturized and the configuration may also be simplified.
  • FIG. 1 to 3 are cross-sectional views of a butterfly-type gate valve according to an embodiment of the present invention
  • FIG. 1 is a state in which the flow path is completely closed
  • FIG. 2 is a state in which the flow path is opened to a certain extent
  • FIG. It indicates that the flow path is completely open.
  • FIG. 4 is a cross-sectional view viewed from the front of a butterfly-type gate valve according to an embodiment of the present invention.
  • FIG. 5 is an exploded perspective view illustrating an opening and closing member constituting a butterfly-type gate valve according to an embodiment of the present invention.
  • FIG. 6 is a perspective view viewed from the front of the opening and closing member shown in FIG.
  • FIG. 7 is a perspective view viewed from the rear of the opening and closing member shown in FIG.
  • FIG. 8 is a perspective view of a driving means constituting a butterfly-type gate valve according to an embodiment of the present invention.
  • FIG. 9 is a longitudinal cross-sectional view of the driving means shown in FIG.
  • first and second may be used to describe various elements, but the elements should not be limited by the terms.
  • the above terms are used only for the purpose of distinguishing one component from another.
  • a first component may be referred to as a second component, and similarly, a second component may also be referred to as a first component.
  • all terms used herein, including technical or scientific terms have the same meaning as commonly understood by those of ordinary skill in the art to which the present invention belongs. Terms such as those defined in a commonly used dictionary should be interpreted as having a meaning consistent with the meaning in the context of the related art, and should not be interpreted in an ideal or excessively formal meaning unless explicitly defined in the present application. does not
  • the butterfly-type gate valve includes a valve body 10, a first opening/closing member 21 for opening and closing the flow path 11 of the valve body 10, and a second opening/closing member 22 and a driving means for transmitting rotational force to the first opening/closing member 21 and the second opening/closing member 22 .
  • the valve body 10 has a flow path 11 of a circular cross section in which an inlet 11 through which a fluid is introduced and an outlet 12 through which the fluid is discharged are respectively formed in the front and rear portions, respectively, and the inlet 12 and the outlet 13 are respectively connected to the pipe.
  • the first opening/closing member 21 and the second opening/closing member 22 have a semi-circular disk shape, and open and close the flow path 11 while being folded or unfolded while rotating in opposite directions inside the flow path of the valve body 10 . That is, when the first opening and closing member 21 and the second opening and closing member 22 are unfolded, the first opening and closing member 21 and the second opening and closing member 22 are disks corresponding to the cross-sectional shape and size of the flow path 11 . shape to completely close the flow path 11 and open the flow path 11 when folded. At this time, the opening degree of the flow path 11 can be adjusted by adjusting the rotation angles of the first opening and closing member 21 and the second opening and closing member 22 .
  • a rotating shaft 23 is formed to extend in the vertical direction on the inner side of the first opening/closing member 21, and upper and lower portions of the rotating shaft 23 are respectively provided at the upper end and lower end of the second opening/closing member 22, respectively.
  • An upper shaft connection part 24 and a lower shaft connection part 25 in the form of a ring which are inserted rotatably relative to each other are formed.
  • the upper end of the rotating shaft 23 and the upper shaft connecting portion 24 are connected to a driving means to receive rotational force.
  • a sealing material 26 made of rubber or silicone that is in close contact with the inner surface of the flow passage 11 and elastically and watertightly may be installed at the edges of the first opening and closing member 21 and the second opening and closing member 22 .
  • a flexible member 30 is installed on the front surfaces of the first opening and closing member 21 and the second opening and closing member 22 to prevent vibration and cavitation while being elastically deformed by the fluid when the passage is opened.
  • the flexible member 30 includes an envelope 31 made of an elastic material such as rubber or silicone, and a liquid or powder filler 32 filled in the envelope 31 .
  • the envelope 31 When the first opening and closing member 21 and the second opening and closing member 22 are rotated to open the flow path 11, the envelope 31 is formed with an inner side inclined so that vibration and cavitation are suppressed while the fluid flows smoothly. desirable.
  • the inside of the envelope 31 may be filled with a filler 32 that absorbs energy and suppresses vibration and cavitation while being deformed by the pressure of the fluid.
  • the filler 32 may be formed in a liquid phase, but it is more effective to reduce vibration and cavitation by using a powder having a relatively high specific gravity and a relatively low density and dynamic modulus compared to a liquid filler.
  • the first opening and closing member 21 and the second opening and closing member 22 may be installed on at least one rear surface of the 22 .
  • the first opening/closing member 21 and the second opening/closing member 22 receive rotational force by a driving means installed outside the valve body 10 .
  • the driving means includes a housing 41, a driving shaft 42 that is rotatably installed on one side of the housing 41 and rotates by a motor or a person, and is coupled to the driving shaft 42 to rotate.
  • the first driving gear 43 and the second driving gear 44 the lower end of which is coupled to the upper shaft connection part 24 to transmit a rotational force to the upper shaft connection part 24, and an outer stem in the form of a hollow shaft (outer stem) ) (45) and the hollow part of the outer stem (45) is installed to be rotatable relative to the outer stem (45), and the lower end is coupled to the upper end of the rotating shaft (23) to transmit the rotational force to the rotating shaft (23) an inner stem 46 , a first driven gear 47 coupled to the inner stem 46 , and a first between the first driving gear 43 and the first driven gear 47 .
  • the drive gear 43 and the transmission gear 49 meshed with the first driven gear 47, and the second driven gear 48 that is coupled to the outer stem 45 and meshed with the second drive gear 44 includes
  • the first driving gear 43 and the second driving gear 44 coupled to the driving shaft 42 rotate in the same direction.
  • the rotational force of the first driving gear 43 is transmitted to the first driven gear 47 through the transmission gear 49 , so that the inner stem 46 rotates in the same direction as the driving shaft 42 .
  • the rotational force of the second driving gear 44 is directly transmitted to the second driven gear 48 , so that the outer stem 45 rotates in the opposite direction to the driving shaft 42 . Accordingly, the inner stem 46 and the outer stem 45 rotate in opposite directions to each other.
  • the rotational force of the inner stem 46 is transmitted to the rotating shaft 23 to rotate the first opening/closing member 21, and the rotational force of the outer stem 45 is transmitted to the upper shaft connection part 24 to the second opening/closing member 22. rotate the
  • the first opening and closing member 21 and the second opening and closing member 22 rotate in opposite directions to open and close the flow path 11 , and adjust the rotation amount of the driving shaft 42 .
  • first opening/closing member 21 and the second opening/closing member 22 are opened by 180 degrees to operate the driving means in a state in which the flow path 11 is closed to operate the first opening/closing member 21 and the second opening/closing member 22 .
  • the flow path 11 is opened by rotating, the fluid flows toward the outlet 13 while riding over the front surfaces of the first opening and closing member 21 and the second opening and closing member 22 .
  • the flexible member 30 is installed on the front surfaces of the first opening and closing member 21 and the second opening and closing member 22 and deformed by the pressure of the fluid, the fluid can proceed smoothly, thus reducing vibration and cavitation. can get
  • the opening and closing time can be significantly shortened.
  • the first opening/closing member 21 and the second opening/closing member 22 rotate only within the flow path 11, the overall size of the valve may be miniaturized and the configuration may be simplified.
  • the present invention can be applied to a valve that controls the blockage, flow rate, flow rate, pressure, etc. of a fluid flowing along a pipe, and in particular, can be applied to a gate valve used for the main purpose of blocking the fluid. .

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

Abstract

The present invention relates to a butterfly-type gate valve capable of shortening an opening/closing time and reducing in size through two opening/closing members in the form of semicircular discs folding or unfolding to allow for adjustment of the degree of opening of a valve flow path and enable opening/closing of the valve flow path. The butterfly-type gate valve according to the present invention comprises: a valve body having a flow path in which an inlet for introducing a fluid and an outlet for discharging the fluid are formed in a front portion and a rear portion, respectively; a first opening/closing member and a second opening/closing member in the form of semi-circular discs that open or close the flow path by being folded or unfolded while rotating in opposite directions inside the flow path of the valve body; and a driving means which transmits a rotational force to the first opening/closing member and the second opening/closing member.

Description

버터플라이형 게이트밸브Butterfly type gate valve
본 발명은 게이트밸브에 관한 것으로, 더욱 상세하게는 반원형 디스크 형태로 된 2개의 개폐부재가 접히거나 펼쳐지면서 밸브 유로의 개도 조정 및 개폐가 가능한 버터플라이형 게이트밸브에 관한 것이다.The present invention relates to a gate valve, and more particularly, to a butterfly-type gate valve capable of adjusting and opening and closing a valve flow path while two opening and closing members in the form of a semi-circular disk are folded or unfolded.
밸브(valve)는 관 속을 흐르는 유체의 유량·유속·압력 등을 제어하는 장치로서 다양한 종류로 개발되어 사용되고 있다. 이와 같은 밸브중에서 유체의 차단을 주 목적으로 하여 사용되는 게이트 밸브(gate valve)와 주로 유체의 유량을 조절하는 목적으로 사용되는 글로브 밸브(globe valve)가 있다. A valve is a device that controls the flow rate, flow rate, pressure, etc. of a fluid flowing in a pipe, and has been developed and used in various types. Among such valves, there are a gate valve used for the main purpose of blocking the fluid and a globe valve mainly used for the purpose of controlling the flow rate of the fluid.
그 중 게이트 밸브는 유체가 흐르는 방향에 대하여 디스크가 직각으로 이동하여 유로를 개폐하도록 된 밸브로서, 유량을 컨트롤 하는 곳에는 부적합하여 단순히 차단 목적으로 사용한다. 이러한 게이트 밸브는 구조가 간단하여 적은 비용으로 설치가 가능하며 유로를 차단하는 것에는 효과적이다. Among them, the gate valve is a valve that opens and closes the flow path by moving the disk at a right angle to the direction in which the fluid flows. This gate valve has a simple structure, so it can be installed at a low cost and is effective in blocking the flow path.
그러나, 전형적인 게이트 밸브는 밸브플레이트가 상하로 이동하므로 개방 시 밸브플레이트가 옮겨갈 공간이 필요하며, 이는 밸브의 크기가 밸브플레이트의 2배가 되어야함을 의미한다. 따라서 다른 밸브에 비해 크기가 커져서 설치 시 공간적인 제약을 많이 받게 된다. However, in a typical gate valve, since the valve plate moves up and down, a space is required for the valve plate to move when opened, which means that the size of the valve must be twice that of the valve plate. Therefore, compared to other valves, the size of the valve is large, so that there is a lot of space limitation during installation.
또한 게이트 밸브는 밸브플레이트가 상하로 이동하여 유로를 개폐하기 때문에 개폐 동작시 밸브플레이트의 동선이 길어 개폐 시간이 오래 걸리는 문제가 있다.In addition, since the gate valve moves up and down to open and close the flow path, there is a problem in that the opening and closing time of the valve plate is long due to the long movement of the valve plate during the opening and closing operation.
본 발명은 상기한 문제를 해결하기 위한 것으로, 본 발명의 목적은 밸브 유로를 개폐하는 개폐부재를 버터플라이밸브의 디스크 형태로 구성함으로써 개폐 시간을 단축시키고, 크기를 소형화할 수 있는 버터플라이형 게이트밸브를 제공하는 것이다. The present invention is to solve the above problems, and an object of the present invention is to shorten the opening and closing time by configuring the opening and closing member for opening and closing the valve passage in the disk shape of the butterfly valve, which can reduce the size of the butterfly gate to provide a valve.
상기한 목적을 달성하기 위한 본 발명에 따른 버터플라이형 게이트밸브는, 전방부와 후방부 각각에 유체가 유입되는 유입구와 유체가 배출되는 배출구가 각각 형성되어 있는 유로를 구비한 밸브몸체; 상기 밸브몸체의 유로 내부에 서로 반대 방향으로 회전하면서 접히거나 펼쳐지면서 유로를 개폐하는 반원형 디스크 형태로 된 제1개폐부재 및 제2개폐부재; 및, 상기 제1개폐부재 및 제2개폐부재에 회전력을 전달하는 구동수단;을 포함한다. A butterfly-type gate valve according to the present invention for achieving the above object includes: a valve body having a flow path in which an inlet through which a fluid is introduced and an outlet through which a fluid is discharged, respectively, formed in a front portion and a rear portion, respectively; a first opening/closing member and a second opening/closing member in the form of a semi-circular disk that opens and closes the flow path while being folded or unfolded while rotating in opposite directions inside the flow path of the valve body; and a driving means for transmitting rotational force to the first opening and closing member and the second opening and closing member.
상기 제1개폐부재의 내측 변부에 회전축이 상하방향으로 연장되게 형성되고, 상기 제2개폐부재의 상단부 및 하단부 각각에 상기 회전축의 상부 및 하부가 각각 상대 회전 가능하게 삽입되는 링 형태의 상부 축연결부 및 하부 축연결부가 형성되며, 상기 회전축의 상단부와 상기 상부 축연결부는 상기 구동수단에 연결되어 회전력을 전달받는다. A ring-shaped upper shaft connection part in which a rotation shaft is formed to extend in the vertical direction on the inner edge of the first opening and closing member, and the upper and lower portions of the rotation shaft are respectively relatively rotatably inserted into the upper and lower ends of the second opening and closing member and a lower shaft connection portion is formed, and the upper end of the rotation shaft and the upper shaft connection portion are connected to the driving means to receive rotational force.
상기 구동수단은, 모터 또는 사람에 의해 회전하는 구동축과, 상기 구동축에 결합되어 회전하는 제1구동기어 및 제2구동기어와, 하단이 상기 상부 축연결부에 결합되어 상부 축연결부에 회전력을 전달하는 중공축 형태의 아우터스템과, 상기 아우터스템의 중공부를 관통하여 아우터스템에 대해 상대 회전 가능하게 설치되며 하단부가 상기 회전축의 상단부에 결합되어 회전축에 회전력을 전달하는 이너스템과, 상기 이너스템에 결합된 제1종동기어와, 상기 제1구동기어와 제1종동기어 사이에서 제1구동기어 및 제1종동기어와 치합되는 전달기어와, 상기 아우터스템에 결합되며 상기 제2구동기어와 치합되는 제2종동기어를 포함할 수 있다. \The driving means includes a drive shaft rotating by a motor or a person, first and second drive gears coupled to the drive shaft to rotate, and a lower end coupled to the upper shaft connection portion to transmit a rotational force to the upper shaft connection portion An outer stem in the form of a hollow shaft, an inner stem that passes through a hollow part of the outer stem to be rotatably installed relative to the outer stem, and the lower end is coupled to the upper end of the rotary shaft to transmit rotational force to the rotary shaft, and the inner stem is coupled to the inner stem a first driven gear, a transmission gear meshed with the first drive gear and the first driven gear between the first drive gear and the first driven gear, and a second drive gear coupled to the outer stem and meshed with the second drive gear It may include two driven gears. \
본 발명의 버터플라이형 게이트밸브는, 상기 제1개폐부재와 제2개폐부재의 전방면에 설치되어 유로 개방시 유체에 의해 탄력적으로 변형되면서 진동 및 캐비테이션을 방지하는 유연부재를 더 포함할 수 있다.The butterfly-type gate valve of the present invention may further include a flexible member installed on front surfaces of the first opening and closing member and the second opening and closing member to prevent vibration and cavitation while being elastically deformed by the fluid when the flow path is opened. .
상기 유연부재는 탄성 재질의 외피재와, 상기 외피재 내부에 채워지는 충전재를 포함할 수 있다. The flexible member may include a shell material of an elastic material, and a filler filled in the shell material.
상기 충전재는 분말로 된 것일 수 있다. The filler may be in powder form.
본 발명의 버터플라이형 게이트밸브는, 상기 제1개폐부재와 제2개폐부재의 적어도 어느 하나의 후방면에 설치되어 제1개폐부재와 제2개폐부재가 완전히 접혀지면서 서로 접촉할 때 충격을 흡수하는 완충부재를 더 포함할 수 있다. The butterfly-type gate valve of the present invention is installed on the rear surface of at least one of the first opening/closing member and the second opening/closing member to absorb the shock when the first opening/closing member and the second opening/closing member are fully folded and come into contact with each other It may further include a buffer member that does.
본 발명의 다른 한 형태에 따른 버터플라이형 게이트밸브는, 전방부와 후방부 각각에 유체가 유입되는 유입구와 유체가 배출되는 배출구가 각각 형성되어 있는 유로를 구비한 밸브몸체; 상기 밸브몸체의 유로 내부에 서로 반대 방향으로 회전하면서 접히거나 펼쳐지면서 유로를 개폐하는 반원형 디스크 형태로 된 제1개폐부재 및 제2개폐부재; 상기 제1개폐부재의 내측 변부에 상하방향으로 연장되게 형성된 회전축과; 상기 제2개폐부재의 상단부 및 하단부 각각에 형성되며, 상기 회전축의 상부 및 하부가 각각 상대 회전 가능하게 삽입되는 링 형태의 상부 축연결부 및 하부 축연결부; 모터 또는 사람에 의해 회전하는 구동축과, 상기 구동축에 결합되어 회전하는 제1구동기어 및 제2구동기어와, 하단이 상기 상부 축연결부에 결합되어 상부 축연결부에 회전력을 전달하는 중공축 형태의 아우터스템과, 상기 아우터스템의 중공부를 관통하여 아우터스템에 대해 상대 회전 가능하게 설치되며 하단부가 상기 회전축의 상단부에 결합되어 회전축에 회전력을 전달하는 이너스템과, 상기 이너스템에 결합된 제1종동기어와, 상기 제1구동기어와 제1종동기어 사이에서 제1구동기어 및 제1종동기어와 치합되는 전달기어와, 상기 아우터스템에 결합되며 상기 제2구동기어와 치합되는 제2종동기어를 포함하여, 상기 제1개폐부재 및 제2개폐부재에 회전력을 전달하는 구동수단;을 포함할 수 있다. A butterfly-type gate valve according to another aspect of the present invention includes: a valve body having a flow path in which an inlet through which a fluid is introduced and an outlet through which a fluid is discharged, respectively, formed in a front portion and a rear portion, respectively; a first opening/closing member and a second opening/closing member in the form of a semi-circular disk that opens and closes the flow path while being folded or unfolded while rotating in opposite directions inside the flow path of the valve body; a rotation shaft formed to extend vertically on an inner edge of the first opening/closing member; a ring-shaped upper shaft connection part and a lower shaft connection part formed on each of the upper and lower ends of the second opening/closing member, the upper and lower parts of the rotation shaft being rotatably inserted, respectively; A drive shaft rotated by a motor or a person, first and second drive gears coupled to the drive shaft to rotate, and a lower end coupled to the upper shaft connection portion to transmit rotational force to the upper shaft connection portion. A stem, an inner stem that penetrates the hollow portion of the outer stem and is installed rotatably relative to the outer stem, the lower end is coupled to the upper end of the rotary shaft to transmit rotational force to the rotary shaft, and a first driven gear coupled to the inner stem and a transmission gear meshed with the first drive gear and the first driven gear between the first drive gear and the first driven gear, and a second driven gear coupled to the outer stem and meshed with the second drive gear. and a driving means for transmitting a rotational force to the first opening and closing member and the second opening and closing member.
본 발명에 따르면, 반원형 디스크 형태로 된 제1개폐부재와 제2개폐부재가 동시에 서로 반대 방향으로 회전하면서 유로를 개폐하므로 개폐 시간을 대폭 단축시킬 수 있는 효과가 있다. According to the present invention, since the first opening and closing member and the second opening and closing member in the form of a semi-circular disk rotate in opposite directions at the same time to open and close the flow path, there is an effect that the opening and closing time can be significantly shortened.
또한 제1개폐부재와 제2개폐부재가 유로 내에서만 회전 작동하므로 밸브의 전체 크기를 소형화할 수 있고, 구성 또한 단순화할 수 있는 이점도 있다. In addition, since the first opening/closing member and the second opening/closing member rotate only within the flow path, the overall size of the valve may be miniaturized and the configuration may also be simplified.
도 1 내지 도 3은 본 발명의 일 실시예에 따른 버터플라이형 게이트밸브의 횡단면도로, 도 1은 유로가 완전히 폐쇄된 상태이고, 도 2는 유로가 일정 정도 개방되고 있는 상태이며, 도 3은 유로가 완전히 개방된 상태를 나타낸다.1 to 3 are cross-sectional views of a butterfly-type gate valve according to an embodiment of the present invention, FIG. 1 is a state in which the flow path is completely closed, FIG. 2 is a state in which the flow path is opened to a certain extent, and FIG. It indicates that the flow path is completely open.
도 4는 본 발명의 일 실시예에 따른 버터플라이형 게이트밸브의 정면에서 본 단면도이다.4 is a cross-sectional view viewed from the front of a butterfly-type gate valve according to an embodiment of the present invention.
도 5는 본 발명의 일 실시예에 따른 버터플라이형 게이트밸브를 구성하는 개폐부재를 나타낸 분해 사시도이다.5 is an exploded perspective view illustrating an opening and closing member constituting a butterfly-type gate valve according to an embodiment of the present invention.
도 6은 도 5에 도시한 개폐부재의 정면에서 본 사시도이다.6 is a perspective view viewed from the front of the opening and closing member shown in FIG.
도 7은 도 5에 도시한 개폐부재의 후면에서 본 사시도이다.7 is a perspective view viewed from the rear of the opening and closing member shown in FIG.
도 8은 본 발명의 일 실시예에 따른 버터플라이형 게이트밸브를 구성하는 구동수단의 사시도이다.8 is a perspective view of a driving means constituting a butterfly-type gate valve according to an embodiment of the present invention.
도 9는 도 8에 도시한 구동수단의 종단면도이다.9 is a longitudinal cross-sectional view of the driving means shown in FIG.
첨부한 도면을 참조하여 본 발명의 실시예들에 따른 버터플라이형 게이트밸브에 대하여 상세히 설명한다. 본 발명은 다양한 변경을 가할 수 있고 여러 가지 형태를 가질 수 있는바, 특정 실시예들을 도면에 예시하고 본문에 상세하게 설명하고자 한다. 그러나 이는 본 발명을 특정한 개시 형태에 대해 한정하려는 것이 아니며, 본 발명의 사상 및 기술 범위에 포함되는 모든 변경, 균등물 내지 대체물을 포함하는 것으로 이해되어야 한다. 각 도면을 설명하면서 유사한 참조부호를 유사한 구성요소에 대해 사용하였다. 첨부된 도면에 있어서, 구조물들의 치수는 본 발명의 명확성을 기하기 위하여 실제보다 확대하거나, 개략적인 구성을 이해하기 위하여 실제보다 축소하여 도시한 것이다.A butterfly-type gate valve according to embodiments of the present invention will be described in detail with reference to the accompanying drawings. Since the present invention can have various changes and can have various forms, specific embodiments are illustrated in the drawings and described in detail in the text. However, this is not intended to limit the present invention to the specific disclosed form, it should be understood to include all modifications, equivalents and substitutes included in the spirit and scope of the present invention. In describing each figure, like reference numerals have been used for like elements. In the accompanying drawings, the dimensions of the structures are enlarged than the actual for clarity of the present invention, or shown reduced than the actual in order to understand the schematic configuration.
또한, 제1 및 제2 등의 용어는 다양한 구성요소들을 설명하는데 사용될 수 있지만, 상기 구성요소들은 상기 용어들에 의해 한정되어서는 안 된다. 상기 용어들은 하나의 구성요소를 다른 구성요소로부터 구별하는 목적으로만 사용된다. 예를 들어, 본 발명의 권리 범위를 벗어나지 않으면서 제1 구성요소는 제2 구성요소로 명명될 수 있고, 유사하게 제2 구성요소도 제1 구성요소로 명명될 수 있다. 한편, 다르게 정의되지 않는 한, 기술적이거나 과학적인 용어를 포함해서 여기서 사용되는 모든 용어들은 본 발명이 속하는 기술 분야에서 통상의 지식을 가진 자에 의해 일반적으로 이해되는 것과 동일한 의미를 가지고 있다. 일반적으로 사용되는 사전에 정의되어 있는 것과 같은 용어들은 관련 기술의 문맥 상 가지는 의미와 일치하는 의미를 가지는 것으로 해석되어야 하며, 본 출원에서 명백하게 정의하지 않는 한, 이상적이거나 과도하게 형식적인 의미로 해석되지 않는다. Also, terms such as first and second may be used to describe various elements, but the elements should not be limited by the terms. The above terms are used only for the purpose of distinguishing one component from another. For example, without departing from the scope of the present invention, a first component may be referred to as a second component, and similarly, a second component may also be referred to as a first component. Meanwhile, unless otherwise defined, all terms used herein, including technical or scientific terms, have the same meaning as commonly understood by those of ordinary skill in the art to which the present invention belongs. Terms such as those defined in a commonly used dictionary should be interpreted as having a meaning consistent with the meaning in the context of the related art, and should not be interpreted in an ideal or excessively formal meaning unless explicitly defined in the present application. does not
도 1 내지 도 9를 참조하면, 본 발명의 일 실시예에 따른 버터플라이형 게이트밸브는 밸브몸체(10), 밸브몸체(10)의 유로(11)를 개폐하는 제1개폐부재(21) 및 제2개폐부재(22), 및 제1개폐부재(21) 및 제2개폐부재(22)에 회전력을 전달하는 구동수단을 포함한다. 1 to 9, the butterfly-type gate valve according to an embodiment of the present invention includes a valve body 10, a first opening/closing member 21 for opening and closing the flow path 11 of the valve body 10, and a second opening/closing member 22 and a driving means for transmitting rotational force to the first opening/closing member 21 and the second opening/closing member 22 .
밸브몸체(10)는 전방부와 후방부 각각에 유체가 유입되는 유입구(11)와 유체가 배출되는 배출구(12)가 각각 형성되어 있는 원형 단면의 유로(11)를 구비하며, 유입구(12) 및 배출구(13)가 각각 배관에 연결된다. The valve body 10 has a flow path 11 of a circular cross section in which an inlet 11 through which a fluid is introduced and an outlet 12 through which the fluid is discharged are respectively formed in the front and rear portions, respectively, and the inlet 12 and the outlet 13 are respectively connected to the pipe.
제1개폐부재(21) 및 제2개폐부재(22)는 반원형 디스크 형태를 가지며, 밸브몸체(10)의 유로 내부에 서로 반대 방향으로 회전하면서 접히거나 펼쳐지면서 유로(11)를 개폐한다. 즉, 제1개폐부재(21) 및 제2개폐부재(22)가 펼쳐졌을 때 제1개폐부재(21) 및 제2개폐부재(22)는 유로(11)의 단면 형태 및 크기와 대응하는 원반 형태로 되어 유로(11)를 완전히 폐쇄하고, 접혀졌을 때 유로(11)를 개방하게 된다. 이 때, 제1개폐부재(21) 및 제2개폐부재(22)의 회전 각도를 조정함으로써 유로(11)의 개도를 조정할 수 있다. The first opening/closing member 21 and the second opening/closing member 22 have a semi-circular disk shape, and open and close the flow path 11 while being folded or unfolded while rotating in opposite directions inside the flow path of the valve body 10 . That is, when the first opening and closing member 21 and the second opening and closing member 22 are unfolded, the first opening and closing member 21 and the second opening and closing member 22 are disks corresponding to the cross-sectional shape and size of the flow path 11 . shape to completely close the flow path 11 and open the flow path 11 when folded. At this time, the opening degree of the flow path 11 can be adjusted by adjusting the rotation angles of the first opening and closing member 21 and the second opening and closing member 22 .
상기 제1개폐부재(21)의 내측 변부에는 회전축(23)이 상하방향으로 연장되게 형성되고, 상기 제2개폐부재(22)의 상단부 및 하단부 각각에는 상기 회전축(23)의 상부 및 하부가 각각 상대 회전 가능하게 삽입되는 링 형태의 상부 축연결부(24) 및 하부 축연결부(25)가 형성된다. 상기 회전축(23)의 상단부와 상기 상부 축연결부(24)는 구동수단에 연결되어 회전력을 전달받는다. A rotating shaft 23 is formed to extend in the vertical direction on the inner side of the first opening/closing member 21, and upper and lower portions of the rotating shaft 23 are respectively provided at the upper end and lower end of the second opening/closing member 22, respectively. An upper shaft connection part 24 and a lower shaft connection part 25 in the form of a ring which are inserted rotatably relative to each other are formed. The upper end of the rotating shaft 23 and the upper shaft connecting portion 24 are connected to a driving means to receive rotational force.
제1개폐부재(21)와 제2개폐부재(22)의 가장자리에는 유로(11)의 내측면과 탄력적으로 밀착되면서 수밀 작용을 하는 고무 또는 실리콘 재질의 실링재(26)가 설치될 수 있다. A sealing material 26 made of rubber or silicone that is in close contact with the inner surface of the flow passage 11 and elastically and watertightly may be installed at the edges of the first opening and closing member 21 and the second opening and closing member 22 .
상기 제1개폐부재(21)와 제2개폐부재(22)의 전방면에는 유로 개방시 유체에 의해 탄력적으로 변형되면서 진동 및 캐비테이션을 방지하는 유연부재(30)가 설치된다. 상기 유연부재(30)는 고무나 실리콘과 같은 탄성 재질의 외피재(31)와, 상기 외피재(31) 내부에 채워지는 액상 또는 분말로 된 충전재(32)를 포함한다. A flexible member 30 is installed on the front surfaces of the first opening and closing member 21 and the second opening and closing member 22 to prevent vibration and cavitation while being elastically deformed by the fluid when the passage is opened. The flexible member 30 includes an envelope 31 made of an elastic material such as rubber or silicone, and a liquid or powder filler 32 filled in the envelope 31 .
상기 외피재(31)는 제1개폐부재(21) 및 제2개폐부재(22)가 회전하여 유로(11)가 개방될 때 유체가 부드럽게 흘러가면서 진동 및 캐비테이션 발생이 억제되도록 내측부가 경사지게 형성됨이 바람직하다. 또한 외피재(31) 내부에는 유체의 압력에 의해 변형되면서 에너지를 흡수하여 진동 및 캐비테이션 발생을 억제하는 충전재(32)가 채워질 수 있다. 상기 충전재(32)는 액상으로 이루어질 수도 있지만, 비중은 액상 충전재에 비하여 상대적으로 높고 밀도와 동탄성 계수는 상대적으로 낮은 분말로 된 것을 사용하는 것이 진동 및 캐비테이션 저감에 더 효과적이다. When the first opening and closing member 21 and the second opening and closing member 22 are rotated to open the flow path 11, the envelope 31 is formed with an inner side inclined so that vibration and cavitation are suppressed while the fluid flows smoothly. desirable. In addition, the inside of the envelope 31 may be filled with a filler 32 that absorbs energy and suppresses vibration and cavitation while being deformed by the pressure of the fluid. The filler 32 may be formed in a liquid phase, but it is more effective to reduce vibration and cavitation by using a powder having a relatively high specific gravity and a relatively low density and dynamic modulus compared to a liquid filler.
또한 상기 제1개폐부재(21)와 제2개폐부재(22)가 완전히 접혀지면서 서로 접촉할 때 충격을 흡수하여 손상을 방지할 수 있도록 하기 위하여, 제1개폐부재(21)와 제2개폐부재(22)의 적어도 어느 하나의 후방면에 탄성 재질로 된 완충부재(27)가 설치될 수 있다. In addition, in order to prevent damage by absorbing shock when the first opening and closing member 21 and the second opening and closing member 22 come into contact with each other while being completely folded, the first opening and closing member 21 and the second opening and closing member A buffer member 27 made of an elastic material may be installed on at least one rear surface of the 22 .
상기 제1개폐부재(21) 및 제2개폐부재(22)는 밸브몸체(10)의 외부에 설치되는 구동수단에 의해 회전력을 전달받는다. The first opening/closing member 21 and the second opening/closing member 22 receive rotational force by a driving means installed outside the valve body 10 .
이 실시예에서 상기 구동수단은, 하우징(41)과, 상기 하우징(41)의 일측에 회전 가능하게 설치되어 모터 또는 사람에 의해 회전하는 구동축(42)과, 상기 구동축(42)에 결합되어 회전하는 제1구동기어(43) 및 제2구동기어(44)와, 하단이 상기 상부 축연결부(24)에 결합되어 상부 축연결부(24)에 회전력을 전달하는 중공축 형태의 아우터스템(outer stem)(45)과, 상기 아우터스템(45)의 중공부를 관통하여 아우터스템(45)에 대해 상대 회전 가능하게 설치되며 하단부가 상기 회전축(23)의 상단부에 결합되어 회전축(23)에 회전력을 전달하는 이너스템(inner stem)(46)과, 상기 이너스템(46)에 결합된 제1종동기어(47)와, 상기 제1구동기어(43)와 제1종동기어(47) 사이에서 제1구동기어(43) 및 제1종동기어(47)와 치합되는 전달기어(49)와, 상기 아우터스템(45)에 결합되며 상기 제2구동기어(44)와 치합되는 제2종동기어(48)를 포함한다. In this embodiment, the driving means includes a housing 41, a driving shaft 42 that is rotatably installed on one side of the housing 41 and rotates by a motor or a person, and is coupled to the driving shaft 42 to rotate. The first driving gear 43 and the second driving gear 44, the lower end of which is coupled to the upper shaft connection part 24 to transmit a rotational force to the upper shaft connection part 24, and an outer stem in the form of a hollow shaft (outer stem) ) (45) and the hollow part of the outer stem (45) is installed to be rotatable relative to the outer stem (45), and the lower end is coupled to the upper end of the rotating shaft (23) to transmit the rotational force to the rotating shaft (23) an inner stem 46 , a first driven gear 47 coupled to the inner stem 46 , and a first between the first driving gear 43 and the first driven gear 47 . The drive gear 43 and the transmission gear 49 meshed with the first driven gear 47, and the second driven gear 48 that is coupled to the outer stem 45 and meshed with the second drive gear 44 includes
따라서 모터 또는 사람에 의해 구동축(42)이 일방향으로 회전하게 되면, 구동축(42)에 결합되어 있는 제1구동기어(43) 및 제2구동기어(44)가 동일한 방향으로 회전하게 된다. 이 때 제1구동기어(43)의 회전력은 전달기어(49)를 통해서 제1종동기어(47)로 전달되어 이너스템(46)이 구동축(42)과 동일한 방향으로 회전하게 된다. 그리고 제2구동기어(44)의 회전력은 제2종동기어(48)로 바로 전달되어 아우터스템(45)이 구동축(42)과 반대방향으로 회전하게 된다. 따라서 이너스템(46)과 아우터스템(45)이 서로 반대방향으로 회전하게 된다. Accordingly, when the driving shaft 42 is rotated in one direction by a motor or a person, the first driving gear 43 and the second driving gear 44 coupled to the driving shaft 42 rotate in the same direction. At this time, the rotational force of the first driving gear 43 is transmitted to the first driven gear 47 through the transmission gear 49 , so that the inner stem 46 rotates in the same direction as the driving shaft 42 . And the rotational force of the second driving gear 44 is directly transmitted to the second driven gear 48 , so that the outer stem 45 rotates in the opposite direction to the driving shaft 42 . Accordingly, the inner stem 46 and the outer stem 45 rotate in opposite directions to each other.
이너스템(46)의 회전력은 회전축(23)으로 전달되어 제1개폐부재(21)를 회전시키고, 아우터스템(45)의 회전력은 상부 축연결부(24)로 전달되어 제2개폐부재(22)를 회전시킨다. The rotational force of the inner stem 46 is transmitted to the rotating shaft 23 to rotate the first opening/closing member 21, and the rotational force of the outer stem 45 is transmitted to the upper shaft connection part 24 to the second opening/closing member 22. rotate the
이와 같이 구동축(42)을 회전시키면, 제1개폐부재(21)와 제2개폐부재(22)가 서로 반대 방향으로 회전하여 유로(11)를 개폐하게 되며, 구동축(42)의 회전량을 조절함으로써 제1개폐부재(21)와 제2개폐부재(22)의 회전 각도의 조절이 가능하므로 개도의 조절을 통한 유량 조절이 가능하게 된다. When the driving shaft 42 is rotated in this way, the first opening and closing member 21 and the second opening and closing member 22 rotate in opposite directions to open and close the flow path 11 , and adjust the rotation amount of the driving shaft 42 . By doing so, it is possible to adjust the rotation angle of the first opening and closing member 21 and the second opening and closing member 22, so that it is possible to control the flow rate through the adjustment of the opening degree.
또한 제1개폐부재(21)와 제2개폐부재(22)가 180도로 펼쳐져 유로(11)를 폐쇄한 상태에서 구동수단을 작동시켜 제1개폐부재(21)와 제2개폐부재(22)를 회전시켜 유로(11)를 개방하게 되면, 유체가 제1개폐부재(21)와 제2개폐부재(22)의 전방면을 타고 넘어가면서 배출구(13) 쪽으로 유동하게 된다. 이 때 제1개폐부재(21)와 제2개폐부재(22)의 전방면에는 유연부재(30)가 설치되어 유체의 압력에 의해 변형되므로 유체가 부드럽게 진행할 수 있게 되고, 따라서 진동 및 캐비테이션 저감 효과를 얻을 수 있다.In addition, the first opening/closing member 21 and the second opening/closing member 22 are opened by 180 degrees to operate the driving means in a state in which the flow path 11 is closed to operate the first opening/closing member 21 and the second opening/closing member 22 . When the flow path 11 is opened by rotating, the fluid flows toward the outlet 13 while riding over the front surfaces of the first opening and closing member 21 and the second opening and closing member 22 . At this time, since the flexible member 30 is installed on the front surfaces of the first opening and closing member 21 and the second opening and closing member 22 and deformed by the pressure of the fluid, the fluid can proceed smoothly, thus reducing vibration and cavitation. can get
본 발명에 따르면, 반원형 디스크 형태로 된 제1개폐부재(21)와 제2개폐부재(22)가 동시에 서로 반대 방향으로 회전하면서 유로(11)를 개폐하므로 개폐 시간을 대폭 단축시킬 수 있다. 또한 제1개폐부재(21)와 제2개폐부재(22)가 유로(11) 내에서만 회전 작동하므로 밸브의 전체 크기를 소형화할 수 있고, 구성 또한 단순화할 수 있는 이점이 있다. According to the present invention, since the first opening and closing member 21 and the second opening and closing member 22 in the form of a semi-circular disk simultaneously rotate in opposite directions to open and close the flow path 11, the opening and closing time can be significantly shortened. In addition, since the first opening/closing member 21 and the second opening/closing member 22 rotate only within the flow path 11, the overall size of the valve may be miniaturized and the configuration may be simplified.
이상에서 본 발명은 실시예를 참조하여 상세히 설명되었으나, 본 발명이 속하는 기술분야에서 통상의 지식을 가진 자라면 상기에서 설명된 기술적 사상을 벗어나지 않는 범위 내에서 여러 가지 치환, 부가 및 변형이 가능할 것임은 당연하며, 이와 같은 변형된 실시 형태들 역시 아래에 첨부한 특허청구범위에 의하여 정하여지는 본 발명의 보호 범위에 속하는 것으로 이해되어야 할 것이다.In the above, the present invention has been described in detail with reference to the embodiments, but those of ordinary skill in the art to which the present invention pertains may make various substitutions, additions and modifications within the scope not departing from the technical spirit described above. Of course, it should be understood that such modified embodiments also fall within the protection scope of the present invention as defined by the appended claims below.
본 발명은 배관을 따라 흐르는 유체의 차단·유량·유속·압력 등을 제어하는 밸브(valve)에 적용될 수 있으며, 특히 유체의 차단을 주 목적으로 하여 사용되는 게이트 밸브(gate valve)에 적용될 수 있다.The present invention can be applied to a valve that controls the blockage, flow rate, flow rate, pressure, etc. of a fluid flowing along a pipe, and in particular, can be applied to a gate valve used for the main purpose of blocking the fluid. .

Claims (10)

  1. 전방부와 후방부 각각에 유체가 유입되는 유입구(12)와 유체가 배출되는 배출구(13)가 각각 형성되어 있는 유로(11)를 구비한 밸브몸체(10);a valve body 10 having a flow path 11 in which an inlet 12 through which a fluid is introduced and an outlet 13 through which the fluid is discharged are respectively formed in the front and rear portions, respectively;
    상기 밸브몸체(10)의 유로(11) 내부에 서로 반대 방향으로 회전하면서 접히거나 펼쳐지면서 유로(11)를 개폐하는 반원형 디스크 형태로 된 제1개폐부재(21) 및 제2개폐부재(22); 및,A first opening/closing member 21 and a second opening/closing member 22 in the form of a semi-circular disk that opens and closes the flow path 11 while being folded or unfolded while rotating in opposite directions inside the flow path 11 of the valve body 10 ; and,
    상기 제1개폐부재(21) 및 제2개폐부재(22)에 회전력을 전달하는 구동수단;a driving means for transmitting a rotational force to the first opening and closing member 21 and the second opening and closing member 22;
    을 포함하는 버터플라이형 게이트밸브.A butterfly-type gate valve comprising a.
  2. 제1항에 있어서, 상기 제1개폐부재(21)의 내측 변부에 회전축(23)이 상하방향으로 연장되게 형성되고, 상기 제2개폐부재(22)의 상단부 및 하단부 각각에 상기 회전축(23)의 상부 및 하부가 각각 상대 회전 가능하게 삽입되는 링 형태의 상부 축연결부(24) 및 하부 축연결부(25)가 형성되며, 상기 회전축(23)의 상단부와 상기 상부 축연결부(24)는 상기 구동수단에 연결되어 회전력을 전달받는 버터플라이형 게이트밸브.According to claim 1, wherein the rotation shaft (23) is formed to extend in the vertical direction on the inner side of the first opening and closing member (21), the rotation shaft (23) at each of the upper end and the lower end of the second opening and closing member (22) An upper shaft connection part 24 and a lower shaft connection part 25 in the form of a ring into which the upper and lower parts of are respectively inserted rotatably are formed, and the upper end of the rotation shaft 23 and the upper shaft connection part 24 are connected to the drive A butterfly-type gate valve that is connected to a means and receives rotational force.
  3. 제2항에 있어서, 상기 구동수단은, 모터 또는 사람에 의해 회전하는 구동축(42)과, 상기 구동축(42)에 결합되어 회전하는 제1구동기어(43) 및 제2구동기어(44)와, 하단이 상기 상부 축연결부(24)에 결합되어 상부 축연결부(24)에 회전력을 전달하는 중공축 형태의 아우터스템(45)과, 상기 아우터스템(45)의 중공부를 관통하여 아우터스템(45)에 대해 상대 회전 가능하게 설치되며 하단부가 상기 회전축(23)의 상단부에 결합되어 회전축(23)에 회전력을 전달하는 이너스템(46)과, 상기 이너스템(46)에 결합된 제1종동기어(47)와, 상기 제1구동기어(43)와 제1종동기어(47) 사이에서 제1구동기어(43) 및 제1종동기어(47)와 치합되는 전달기어(49)와, 상기 아우터스템(45)에 결합되며 상기 제2구동기어(44)와 치합되는 제2종동기어(48)를 포함하는 버터플라이형 게이트밸브.According to claim 2, wherein the driving means, the drive shaft (42) rotated by a motor or a person, the first drive gear (43) and the second drive gear (44) coupled to the drive shaft 42 to rotate , an outer stem 45 in the form of a hollow shaft, the lower end of which is coupled to the upper shaft connection part 24 to transmit rotational force to the upper shaft connection part 24, and the outer stem 45 passing through the hollow part of the outer stem 45 ) installed rotatably relative to the inner stem 46 and the lower end is coupled to the upper end of the rotary shaft 23 to transmit rotational force to the rotary shaft 23, and the first driven gear coupled to the inner stem 46 (47), a transmission gear (49) meshed with the first driving gear (43) and the first driven gear (47) between the first driving gear (43) and the first driven gear (47), and the outer A butterfly-type gate valve coupled to the stem (45) and including a second driven gear (48) meshed with the second driving gear (44).
  4. 제1항에 있어서, 상기 제1개폐부재(21)와 제2개폐부재(22)의 전방면에 설치되어 유로 개방시 유체에 의해 탄력적으로 변형되면서 진동 및 캐비테이션을 방지하는 유연부재(30)를 더 포함하는 버터플라이형 게이트밸브.The flexible member according to claim 1, wherein the flexible member 30 is installed on the front surfaces of the first opening and closing member 21 and the second opening and closing member 22 to prevent vibration and cavitation while being elastically deformed by the fluid when the flow passage is opened. Butterfly-type gate valve comprising more.
  5. 제4항에 있어서, 상기 유연부재(30)는 탄성 재질의 외피재(31)와, 상기 외피재(31) 내부에 채워지는 충전재(32)를 포함하는 버터플라이형 게이트밸브.[5] The butterfly-type gate valve according to claim 4, wherein the flexible member (30) comprises an elastic material (31) and a filler (32) filled in the outer covering (31).
  6. 제5항에 있어서, 상기 충전재(32)는 분말로 된 버터플라이형 게이트밸브.6. The butterfly-type gate valve according to claim 5, wherein said filler (32) is powdered.
  7. 제1항에 있어서, 상기 제1개폐부재(21)와 제2개폐부재(22)의 적어도 어느 하나의 후방면에 설치되어 제1개폐부재(21)와 제2개폐부재(22)가 완전히 접혀지면서 서로 접촉할 때 충격을 흡수하는 완충부재(27)를 더 포함하는 버터플라이형 게이트밸브.The method according to claim 1, wherein the first opening and closing member 21 and the second opening and closing member 22 are installed on the rear surface of at least one so that the first opening and closing member 21 and the second opening and closing member 22 are completely folded. Butterfly-type gate valve further comprising a buffer member (27) for absorbing shock when in contact with each other while falling.
  8. 전방부와 후방부 각각에 유체가 유입되는 유입구(11)와 유체가 배출되는 배출구(12)가 각각 형성되어 있는 유로(11)를 구비한 밸브몸체(10);a valve body 10 having a flow path 11 having an inlet 11 through which a fluid is introduced and an outlet 12 through which the fluid is discharged, respectively, at each of the front and rear portions;
    상기 밸브몸체(10)의 유로(11) 내부에 서로 반대 방향으로 회전하면서 접히거나 펼쳐지면서 유로(11)를 개폐하는 반원형 디스크 형태로 된 제1개폐부재(21) 및 제2개폐부재(22); A first opening/closing member 21 and a second opening/closing member 22 in the form of a semi-circular disk that opens and closes the flow path 11 while being folded or unfolded while rotating in opposite directions inside the flow path 11 of the valve body 10 ;
    상기 제1개폐부재(21)의 내측 변부에 상하방향으로 연장되게 형성된 회전축(23)과;a rotation shaft 23 formed to extend in the vertical direction on the inner edge of the first opening and closing member 21;
    상기 제2개폐부재(22)의 상단부 및 하단부 각각에 형성되며, 상기 회전축(23)의 상부 및 하부가 각각 상대 회전 가능하게 삽입되는 링 형태의 상부 축연결부(24) 및 하부 축연결부(25);An upper shaft connection part 24 and a lower shaft connection part 25 in the form of a ring formed at the upper end and the lower end of the second opening and closing member 22, respectively, into which the upper and lower portions of the rotation shaft 23 are relatively rotatably inserted, respectively. ;
    모터 또는 사람에 의해 회전하는 구동축(42)과, 상기 구동축(42)에 결합되어 회전하는 제1구동기어(43) 및 제2구동기어(44)와, 하단이 상기 상부 축연결부(24)에 결합되어 상부 축연결부(24)에 회전력을 전달하는 중공축 형태의 아우터스템(45)과, 상기 아우터스템(45)의 중공부를 관통하여 아우터스템(45)에 대해 상대 회전 가능하게 설치되며 하단부가 상기 회전축(23)의 상단부에 결합되어 회전축(23)에 회전력을 전달하는 이너스템(46)과, 상기 이너스템(46)에 결합된 제1종동기어(47)와, 상기 제1구동기어(43)와 제1종동기어(47) 사이에서 제1구동기어(43) 및 제1종동기어(47)와 치합되는 전달기어(49)와, 상기 아우터스템(45)에 결합되며 상기 제2구동기어(44)와 치합되는 제2종동기어(48)를 포함하여, 상기 제1개폐부재(21) 및 제2개폐부재(22)에 회전력을 전달하는 구동수단;The drive shaft 42 rotated by a motor or a person, the first drive gear 43 and the second drive gear 44 are coupled to the drive shaft 42 and rotated, and the lower end is connected to the upper shaft connection part 24 . An outer stem 45 in the form of a hollow shaft that is coupled to transmit a rotational force to the upper shaft connection part 24, penetrates the hollow portion of the outer stem 45 and is rotatably installed relative to the outer stem 45, and the lower end is An inner stem 46 coupled to the upper end of the rotary shaft 23 to transmit a rotational force to the rotary shaft 23, a first driven gear 47 coupled to the inner stem 46, and the first driving gear ( 43) and the first driven gear 47, the first drive gear 43 and the transmission gear 49 meshed with the first driven gear 47, coupled to the outer stem 45 and the second drive a driving means for transmitting a rotational force to the first opening and closing member 21 and the second opening and closing member 22, including a second driven gear 48 meshed with the gear 44;
    을 포함하는 버터플라이형 게이트밸브.A butterfly-type gate valve comprising a.
  9. 제8항에 있어서, 상기 제1개폐부재(21)와 제2개폐부재(22)의 전방면에 설치되어 유로 개방시 유체에 의해 탄력적으로 변형되면서 진동 및 캐비테이션을 방지하는 유연부재(30)를 더 포함하는 버터플라이형 게이트밸브.The flexible member according to claim 8, wherein the flexible member 30 is installed on the front surfaces of the first opening and closing member 21 and the second opening and closing member 22 to prevent vibration and cavitation while being elastically deformed by the fluid when the passage is opened. Butterfly-type gate valve comprising more.
  10. 제9항에 있어서, 상기 유연부재(30)는 탄성 재질의 외피재(31)와, 상기 외피재(31) 내부에 채워지는 분말 충전재(32)를 포함하는 버터플라이형 게이트밸브.[10] The butterfly-type gate valve according to claim 9, wherein the flexible member (30) includes an elastic shell material (31) and a powder filler (32) filled in the shell material (31).
PCT/KR2021/001033 2021-01-26 2021-01-26 Butterfly-type gate valve WO2022163874A1 (en)

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Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH10220604A (en) * 1997-02-05 1998-08-21 Tomoe Gijutsu Kenkyusho:Kk Dual plate check valve
JPH11336552A (en) * 1998-05-28 1999-12-07 Suzuki Motor Corp Intra-cylinder air flow intensifying device
KR200363525Y1 (en) * 2004-03-03 2004-10-06 이병순 Butterfly Valve
KR20130123615A (en) * 2012-05-03 2013-11-13 동아대학교 산학협력단 Anti-cavitation butterfly balve
KR20180071876A (en) * 2016-12-20 2018-06-28 동아대학교 산학협력단 Butterfly Balve of Bidirectional Opening And Closing Type
US20190316708A1 (en) * 2018-04-12 2019-10-17 P&K Eng Co., Ltd. Control butterfly valve

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20120001326U (en) 2010-08-17 2012-02-27 (주)제왕터보텍 Knife gate valve
KR101468452B1 (en) 2014-06-05 2014-12-03 주식회사 신정기공 Gate valve throttling

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH10220604A (en) * 1997-02-05 1998-08-21 Tomoe Gijutsu Kenkyusho:Kk Dual plate check valve
JPH11336552A (en) * 1998-05-28 1999-12-07 Suzuki Motor Corp Intra-cylinder air flow intensifying device
KR200363525Y1 (en) * 2004-03-03 2004-10-06 이병순 Butterfly Valve
KR20130123615A (en) * 2012-05-03 2013-11-13 동아대학교 산학협력단 Anti-cavitation butterfly balve
KR20180071876A (en) * 2016-12-20 2018-06-28 동아대학교 산학협력단 Butterfly Balve of Bidirectional Opening And Closing Type
US20190316708A1 (en) * 2018-04-12 2019-10-17 P&K Eng Co., Ltd. Control butterfly valve

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