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KR100758598B1 - Butterfly valve - Google Patents

Butterfly valve Download PDF

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Publication number
KR100758598B1
KR100758598B1 KR1020060070206A KR20060070206A KR100758598B1 KR 100758598 B1 KR100758598 B1 KR 100758598B1 KR 1020060070206 A KR1020060070206 A KR 1020060070206A KR 20060070206 A KR20060070206 A KR 20060070206A KR 100758598 B1 KR100758598 B1 KR 100758598B1
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South Korea
Prior art keywords
seat
valve
disk
seating
sheet
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Expired - Fee Related
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KR1020060070206A
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Korean (ko)
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KR20060090792A (en
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박영원
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(주)유전양행
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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
    • 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
    • F16K1/228—Movable sealing bodies
    • 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
    • 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
    • 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
    • F16K1/46—Attachment 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
    • 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

본 발명은 밸브몸체의 내주연에 설치되는 몸체시트와 접촉하여 밸브를 통과하는 유체의 흐름을 제어하는 디스크의 실링구조를 개량하여 누수를 방지하고, 디스크의 개폐동작을 원활하게 하는 동시에 실링구조의 내구성을 향상시켜 밸브의 내구 수명을 대폭적으로 연장시킬 수 있도록 하는 버터플라이밸브에 관한 것이다.The present invention is to improve the sealing structure of the disk in contact with the body seat installed on the inner circumference of the valve body to control the flow of the fluid through the valve to prevent leakage, smooth opening and closing operation of the disk and at the same time The present invention relates to a butterfly valve for improving durability and significantly extending the service life of the valve.

종래의 실링구조는 단순히 디스크(2) 주연의 안착면(21)과 이에 결합되는 글랜드(7)의 사이에 단일체의 시트링(6)만이 개재 설치됨에 따라 밸브내의 모든 압력이 하나의 시트링(6)에 모두 전달되어 시트링(6)에 많은 부하가 걸리는 문제점과, 디스크(2)의 개폐동작이 원활하지 못하고, 개폐동작시 높은 마찰력에 의해 시트링(6)이 쉽게 손상되며, 장기간 사용시 시트링(6)의 노화로 인한 누수를 발생시키고, 이는 밸브의 내구수명을 단축시키게 되는 문제점이 있었던 바, 본 발명은 원통형상의 밸브몸체(1)와, 상기 밸브 몸체(1)의 내부에 축설되는 디스크(2)와, 상기 디스크(2)를 회전시켜 유체의 흐름을 제어하는 회전장치(3)로 구성되고, 상기 밸브몸체(1)의 내주연 중심에 몸체시트(5)가 유동될 수 있는 구조로 설치되며, 상기 디스크(2)의 일측 주연에 안착면(21)이 형성되고, 상기 안착면(21)과의 사이에 시트링(6)을 개재한 상태로 안착면(21)에 체결되는 글랜드(7)로 구성되는 것에 있어서, 상기 시트링(6)을 안착면에 밀착 설치되는 러버시트(61)와, 러버시트(61)의 외측면에 밀착 설치되는 메탈시트(62)로 구성시키되, 상기 메탈시트(62)가 메탈시트에 전가되는 압력에 따라 변형되면서 몸체시트(5)에 긴밀하게 밀착될 수 있는 탄성체로 구성됨으로써, 실링의 효과가 증대되고 결합력이 견고하여 누수가 방지되며, 디스크의 개폐동작을 원활하게 하는 동시에 실링구조의 내구성을 향상시켜 밸브의 내구 수명을 대폭적으로 연장시킬 수 있는 효과가 있다.The conventional sealing structure simply means that all the pressure in the valve is one seating ring as only a single seat ring 6 is interposed between the seating surface 21 around the disk 2 and the gland 7 coupled thereto. It is transmitted to all of the (6) and the load on the seat ring 6, the opening and closing operation of the disk 2 is not smooth, the seat ring 6 is easily damaged by the high friction force during the opening and closing operation, In use, a leak occurs due to aging of the seat ring 6, which has a problem of shortening the endurance life of the valve, and the present invention has a cylindrical valve body 1 and the inside of the valve body 1 And a rotating device 3 which controls the flow of the fluid by rotating the disk 2, and the body seat 5 flows in the center of the inner circumference of the valve body 1. It is installed in a structure capable of, and the seating surface 21 on one side of the disk (2) The gland 7 is formed and is fastened to the seating surface 21 with the seating ring 6 interposed between the seating surface 21 and the seating ring 6. The rubber sheet 61 is installed in close contact with the surface, and the metal sheet 62 is installed in close contact with the outer surface of the rubber seat 61, while the metal sheet 62 is deformed according to the pressure transferred to the metal sheet. It is composed of an elastic body that can be in close contact with the body seat (5), the sealing effect is increased and the coupling force is secured to prevent leakage, smooth opening and closing operation of the disk and at the same time improve the durability of the sealing structure of the valve There is an effect that can significantly extend the endurance life.

밸브, 디스크, 시트링 Valve, disc, seating

Description

버터플라이 밸브{Butterfly Valves}Butterfly Valves

도 1 은 일반적인 버터플라이 밸브를 도시한 사시도1 is a perspective view showing a typical butterfly valve

도 2 는 종래에 있어서의 실링구조를 발췌 도시한 단면도Fig. 2 is a cross-sectional view showing a conventional sealing structure.

도 3 은 본 발명의 버터플라이 밸브를 도시한 단면도3 is a cross-sectional view showing a butterfly valve of the present invention.

도 4 는 본 발명의 요부인 시트링 부위를 발췌 도시한 사시도Figure 4 is a perspective view showing an excerpted seating parts of the present invention

도 5 는 본 발명의 시트링부위가 결합된 상태를 확대 도시한 단면도Figure 5 is an enlarged cross-sectional view showing a state in which the seating portion of the present invention is coupled

도 6 은 본 발명의 다른 실시 예를 도시한 단면도6 is a cross-sectional view showing another embodiment of the present invention.

<도면의 주요 부분에 대한 부호의 설명><Explanation of symbols for main parts of the drawings>

1. 밸브몸체 2. 디스크1. Valve body 2. Disc

3. 회전장치 5. 몸체시트3. Rotator 5. Body seat

6. 시트링 7. 글랜드6. Seating 7. Gland

21, 안착면 61. 러버시트21, seating surface 61. Rubber seat

62. 메탈시트62. Metal Sheet

본 발명은 버터플라이 밸브(Butterfly Valves)에 관한 것으로, 더욱 상세하게는 밸브몸체의 내주연에 설치되는 몸체시트와 접촉하여 밸브를 통과하는 유체의 흐름을 제어하는 디스크의 실링구조를 개량하여 누수를 방지하고, 디스크의 개폐동작을 원활하게 하는 동시에 실링구조의 내구성을 향상시켜 밸브의 내구 수명을 대폭적으로 연장시킬 수 있도록 하는 버터플라이밸브에 관한 것이다.The present invention relates to butterfly valves, and more specifically, to improve the sealing structure of the disk to control the flow of fluid through the valve in contact with the body seat installed on the inner periphery of the valve body by leaking The present invention relates to a butterfly valve which prevents and facilitates the opening and closing operation of a disc and at the same time improves the durability of the sealing structure so as to significantly prolong the service life of the valve.

일반적으로 버터플라이 밸브는 원통형상의 밸브몸체와, 상기 밸브몸체의 내부에 축설되는 디스크와, 상기 디스크를 회전시켜 유체의 흐름을 제어하는 회전수단으로 구성되며, 상기 회전수단으로는 핸들로 디스크를 직접회전시키는 수동과, 전동기의 동력을 인용하여 디스크를 회전시키는 자동이 선택적으로 사용된다.In general, the butterfly valve is composed of a cylindrical valve body, a disk that is arranged inside the valve body, and a rotating means for rotating the disk to control the flow of fluid, the rotating means is a disk directly by the handle Manual rotation and automatic rotation of the disk by referring to the power of the electric motor are optionally used.

이와 같은 버터플라이 밸브에 있어서는 밸브 몸체의 내주연과 디스크의 외주연 사이의 수밀성이 매우 중요하다.In such a butterfly valve, the watertightness between the inner circumference of the valve body and the outer circumference of the disk is very important.

밸브의 내주연과 디스크 외주연 사이의 수밀성이 좋지 않으면 유체가 누출되기 때문이다.If the water tightness between the inner and outer circumference of the valve is not good, the fluid will leak.

이러한 수밀성을 향상시킬 수 있게 하기 위하여 종래 다양한 방법의 실링구조가 제공된 바 있으며, 그 대표적인 종래의 방법으로서 첨부된 도면 도 1 및 도 2 에 도시되는 바와 같이, 밸브몸체(1)의 내부연 중심에 몸체시트(5)를 설치시키고, 디스크(2)의 외주연에 상기 몸체시트(5)와 접촉되어 밸브를 통과하는 유체의 흐름을 제어하는 동시에 수밀성을 확보할 수 있게 하는 디스크 시트링(6)가 설치되어 구성되는 것이 제공된바 있다.In order to improve such watertightness, a sealing structure of various methods has been provided in the related art, and as a representative conventional method, as shown in FIGS. 1 and 2, the center of the inner edge of the valve body 1 is provided. A disc seat ring (6) for installing the body seat (5) and controlling the flow of fluid passing through the valve in contact with the body seat (5) at the outer periphery of the disc (2), while ensuring watertightness. Has been installed and configured.

상기 디스크 시트링(6)의 설치구조는 디스크(2)의 일측 주연에 안착면(21)을 형성시키고, 상기 안착면(21)과의 사이에 시트링(6)을 개재한 상태로 안착면(21)에 체결되는 글랜드(7)를 설치시켜 구성되는 것으로, 상기 안착면(21)과 글랜드(7)에는 시트링(6)의 양측면이 삽입되는 홈(25)(75)이 각각 형성되는 구성되는 것이다.The installation structure of the disk seating 6 forms a seating surface 21 at one side circumference of the disk 2, and a seating surface with the seating ring 6 interposed between the seating surface 21. It is configured by installing the gland (7) fastened to the (21), the grooves (25, 75) for inserting both sides of the seat ring 6 in the seating surface 21 and the gland (7), respectively It is to be formed.

그러나 이와 같은 종래의 실링구조는 단순히 디스크(2) 주연의 안착면(21)과 이에 결합되는 글랜드(7)의 사이에 단일체의 시트링(6)만이 개재 설치됨에 따라 밸브내의 모든 압력이 하나의 시트링(6)에 모두 전달되어 시트링(6)에 많은 부하가 걸리는 문제점이 있다. 이로써 소기의 실링효과를 얻기 위해서는 시트링(6)이 몸체시트(5)에 접촉되는 량을 증대시키는 동시에 강한 압력을 몸체시트(5)와 접촉되는 구조를 취할 수밖에 없어 디스크(2)의 개폐동작이 원활하지 못하게 되는 문제점이 있는 것이다.However, such a conventional sealing structure is simply all the pressure in the valve as a single seat ring 6 is interposed between the seating surface 21 of the disk (2) peripheral surface and the gland (7) coupled thereto. There is a problem in that all of the transfer to the seat ring 6 takes a lot of load on the seat ring (6). As a result, in order to obtain the desired sealing effect, the seat ring 6 must increase the amount of contact with the body sheet 5 and at the same time take a structure in which a strong pressure is in contact with the body sheet 5, thereby opening and closing the disk 2. There is a problem that is not smooth.

또한 디스크(2)의 개폐동작시 높은 마찰력에 의해 시트링(6)이 쉽게 손상되어 누수를 발생시키고, 이는 밸브의 내구수명을 단축시키게 되는 문제점이 있는 것이다.In addition, when the opening and closing operation of the disk 2, the seat ring 6 is easily damaged by the high friction force, which causes water leakage, which shortens the service life of the valve.

본 발명은 상기와 같은 종래의 문제점을 해결하기 위한 것으로서, 본 발명은 디스크에 설치되는 시트링의 구조와, 시트링을 디스크에 결합시키는 결합구조를 개량하여 누수를 방지하고, 디스크의 개폐동작을 원활하게 하는 동시에 실링구조의 내구성을 향상시켜 밸브의 내구 수명을 대폭적으로 연장시킬 수 있도록 하는 버터플라이밸브를 제공함에 그 목적이 있다.The present invention is to solve the above conventional problems, the present invention is to improve the structure of the seat ring is installed on the disk, and the coupling structure for coupling the seat ring to the disk to prevent leakage, to prevent the opening and closing operation of the disk It is an object of the present invention to provide a butterfly valve which can smoothly extend the durability of the valve by improving the durability of the sealing structure.

본 발명은 상기와 같은 목적을 달성하기 위하여 다음과 같이 구성된다. 즉, 본 발명은 원통형상의 밸브몸체와, 상기 밸브 몸체의 내부에 축설되는 디스크와, 상기 디스크를 회전시켜 유체의 흐름을 제어하는 회전장치로 구성되고, 상기 밸브몸체의 내부연 중심에 몸체시트가 설치되며,The present invention is configured as follows to achieve the above object. That is, the present invention is composed of a cylindrical valve body, a disk arranged in the interior of the valve body, a rotating device for controlling the flow of fluid by rotating the disk, the body seat is in the center of the inner edge of the valve body Installed,

상기 디스크의 일측 주연에 안착면이 형성되고, 상기 안착면과의 사이에 시트링을 개재한 상태로 안착면에 체결되는 글랜드로 구성되는 것에 있어서, 상기 시트링을 안착면에 밀착설치는 러버시트와, 러버시트의 외즉면에 밀착 설치되는 메탈시트로 구성시키되, 상기 메탈시트(62)가 메탈시트에 전가되는 압력 변화에 따라 변형되면서 몸체시트(5)에 긴밀하게 밀착될 수 있는 탄성체로 구성되는 것에 특징을 둔 것이다.A seating surface is formed on one side edge of the disk, and is composed of a gland fastened to the seating surface with a seating ring interposed between the seating surface, wherein the seating ring is closely attached to the seating surface. It is composed of a sheet and a metal sheet which is installed in close contact with the outer surface of the rubber sheet, wherein the metal sheet 62 is an elastic body that can be in close contact with the body sheet 5 while being deformed according to the pressure change imparted to the metal sheet. It is characterized by what is constructed.

이하에서는 첨부된 도면을 참조하여 본 발명의 바람직한 실시 예를 상세히 설명하기로 한다.Hereinafter, with reference to the accompanying drawings will be described a preferred embodiment of the present invention;

첨부된 도면 도 3 은 본 발명의 버터플라이 밸브를 도시한 단면도이고, 도 4 는 본 발명의 요부인 시트링 부위를 발췌 도시한 사시도이며, 도 5 는 본 발명의 시트링 부위가 결합된 상태를 확대 도시한 단면도이고, 도 6 은 본 발명의 다른 실시 예를 도시한 단면도이다.Figure 3 is a cross-sectional view showing a butterfly valve of the present invention, Figure 4 is a perspective view showing an excerpted portion of the seating portion of the present invention, Figure 5 is a state in which the seating portion of the present invention is coupled 6 is an enlarged cross-sectional view, and FIG. 6 is a cross-sectional view showing another embodiment of the present invention.

도 3 내지 도 6 에 도시되는 바와 같이, 본 발명은 원통형상의 밸브몸체(1)와, 상기 밸브 몸체(1)의 내부에 축설되는 디스크(2)와, 상기 디스크(2)를 회전시켜 유체의 흐름을 제어하는 회전장치(3)로 구성되고, 상기 밸브몸체(1)의 내주연 중심에 몸체시트(5)가 유동 가능한 구조로 설치되며, 상기 디스크(2)의 일측 주연 에 안착면(21)이 형성되고, 상기 안착면(21)과의 사이에 시트링(6)을 개재한 상태로 안착면(21)에 체결되는 글랜드(7)로 구성되는 것에 있어서, 상기 시트링(6)을 안착면(21)에 밀착 설치되는 러버시트(61)와, 러버시트(61)의 외즉면에 밀착 설치되는 메탈시트(62)로 구성시키되, 상기 메탈시트(62)가 메탈시트에 전가되는 압력에 따라 변형되면서 몸체시트(5)에 긴밀하게 밀착될 수 있는 탄성체로 형성시켜 구성되는 것이다.As shown in FIGS. 3 to 6, the present invention provides a cylindrical valve body 1, a disk 2 arranged inside the valve body 1, and a disk 2 to rotate the fluid. It is composed of a rotating device (3) for controlling the flow, the body seat (5) is installed in a structure capable of flowing in the inner peripheral center of the valve body (1), the seating surface 21 on one side of the disk (2) ) And a gland (7) fastened to the seating surface (21) with a seat ring (6) interposed between the seating surface (21). It consists of a rubber seat 61 is installed in close contact with the seating surface 21, and a metal sheet 62 is installed in close contact with the outer surface of the rubber seat 61, the metal sheet 62 is transferred to the metal sheet It is configured by forming an elastic body that can be in close contact with the body sheet 5 while being deformed under pressure.

상기 러버시트(61)는 내유, 내마모성, 내노화성이 우수한 니트릴 부타디엔 고무(NBR: Nitrile Butadiene Rubber)계열의 재질로 형성시키는 바람직하고, 상기 메탈시트(62)는 내부식성과 탄성력이 우한 스테인리스강으로 형성시키는 것이 바람직하다.The rubber sheet 61 is preferably formed of a nitrile butadiene rubber (NBR :) material having excellent oil resistance, abrasion resistance, and aging resistance, and the metal sheet 62 is made of stainless steel having excellent corrosion resistance and elasticity. It is preferable to form.

그리고 상기 상기 러버시트(61) 일측면 즉, 메탈시트(62)가 접하는 면에 상부 수직면(611)으로부터 돌출되는 돌출면(612)을 형성시키고, 돌출면(612)의 하단에 내측으로 경사를 이루는 경사면(613)을 형성시키며, 경사면(613)의 말단에 하부 수직면(614)을 형성시키고, 상기 러버시트(61)와 접하는 메탈시트(62)의 상부에 러버시트(61)의 상부 수직면(611)과 접하는 수직면(621)을 형성시키고, 수직면(621)의 하단에 돌출면(622)을 형성시키며, 글랜드(7)의 내측면에 각시트(61)(62)의 돌출면(612)(622)이 삽입되는 홈부(71)를 형성시켜 구성되는 것이다.In addition, a protrusion surface 612 protruding from the upper vertical surface 611 is formed on one side of the rubber sheet 61, that is, the metal sheet 62 is in contact with each other, and the inner side of the rubber sheet 61 is inclined inwardly. Forming an inclined surface 613, and forming a lower vertical surface 614 at an end of the inclined surface 613, and an upper vertical surface of the rubber sheet 61 on the upper portion of the metal sheet 62 in contact with the rubber sheet 61. A vertical surface 621 is formed in contact with the 611, and a protruding surface 622 is formed at the lower end of the vertical surface 621, and the protruding surface 612 of each sheet 61 and 62 is formed on the inner surface of the gland 7. (622) is formed by forming the groove portion 71 is inserted.

그리고 상기 메탈시트(62)의 돌출면(622) 하단에 완만한 곡율로 만곡지게 형성되어 몸체시트(5)의 상면과 접하는 곡면부(625)를 형성시켜 구성되는 것이다.(도 6 참조)The curved surface 622 is formed at the lower end of the protruding surface 622 of the metal sheet 62 to form a curved surface portion 625 in contact with the upper surface of the body sheet 5 (see FIG. 6).

또한 상기 곡면부(625)의 말단에 러버시트(61)의 하부 수직면(614)과 접촉되는 절곡부(626)를 형성시켜 구성되는 것이다. In addition, it is configured by forming a bent portion 626 in contact with the lower vertical surface 614 of the rubber seat 61 at the end of the curved portion 625.

그리고 상기 러버시트(61)의 내측면(610) 즉, 디스크(2)의 안착면(21)과 접하는 면 또한 외측면 형상에 대응하는 형상으로 형성시키고, 안착면(21)의 형상도 러버시트(61)의 내측면 형상과 동일한 형상으로 형성시켜 구성함으로써, 러버시트(61)의 내구성을 증대시키고 안착면(21)과의 결합력을 더욱 견고하게 할 수 있는 것이다. In addition, the inner surface 610 of the rubber seat 61, that is, the surface contacting the seating surface 21 of the disk 2 is also formed in a shape corresponding to the outer surface shape, and the shape of the seating surface 21 is also a rubber seat. By forming and forming in the same shape as the inner side shape of 61, it is possible to increase the durability of the rubber seat 61 and to make the bonding force with the seating surface 21 more firm.

이와 같이, 디스크의 주연에 설치되는 시트링(6)을 종래에서와 같이 단일체로 형성시키지 아니하고, 시트링(6)이 서로 다른 재질 즉, 러버재질의 러버시트(61)와 내구성이 우수한 메탈시트(62)로 구성됨으로써, 러버시트(61)의 볼륨을 작게 하더라도 이를 감싸는 메탈시트(62)가 러버시트(61)의 내구성을 보충시키는 동시에 러버시트(61)에 전가되는 압력을 차단시킬 수 있게 되는 것이다.In this way, the seat ring 6 provided on the periphery of the disk is not formed as a single body as in the prior art, the seat ring 6 is a rubber sheet 61 of a different material, that is, a rubber material and a metal sheet excellent in durability By being configured as (62), even if the volume of the rubber seat 61 is reduced so that the metal sheet 62 surrounding it supplements the durability of the rubber seat 61 and at the same time can block the pressure transferred to the rubber seat 61. Will be.

이는 디스크(2)의 개폐동작시 러버시트(61)가 몸체시트(5)에 강한 압력으로 압착되지 안이하고도 충분한 실링의 효과를 발휘할 수 있게 함으로서, 러버시트(61)와 몸체시트(5)와의 사이에서 발생되는 마찰력을 줄여 러버시트(61)가 쉽게 손상되거나 파손되는 것을 방지할 수 있는 것이다.This enables the rubber seat 61 to exert sufficient sealing effect without being pressed against the body seat 5 by a strong pressure during the opening and closing operation of the disc 2, thereby providing the rubber seat 61 and the body seat 5. It is possible to prevent the rubber seat 61 from being easily damaged or broken by reducing the friction force generated between and.

또한 시트링(6)이 몸체시트(5)와 접촉될 때 자체적으로 탄성을 보유하는 메탈시트(62)의 하부 곡면부(625)가 먼저 몸체시트(5)의 상면과 접촉되어 굴곡되면서 메탈시트의 단부에 형성된 절곡부(626)가 러버시트(61)의 하부 수직벽(614) 단부를 강한 힘으로 지지함에 따라 실링의 효과가 극대화되는 것이다.In addition, when the seat ring 6 is in contact with the body sheet 5, the lower curved portion 625 of the metal sheet 62, which retains its own elasticity, is first bent in contact with the upper surface of the body sheet 5, thereby bending the metal sheet. The bent portion 626 formed at the end of the rubber sheet 61 is to support the end of the lower vertical wall 614 with a strong force is to maximize the effect of the sealing.

본 발명은 전술한 실시 예에 한정되지 않고 본 발명의 기술사상이 허용하는 범위 내에서 다양하게 변형하여 실시할 수가 있다.The present invention is not limited to the above embodiments, and various modifications can be made within the scope allowed by the technical idea of the present invention.

이상에서와 같이 본 발명에 따르면 시트링이 수밀성이 우수한 러버시트와 내구성이 우수한 메탈시트로 형성되고, 안착면과 각각의 시트가 서로 대응하는 굴곡면으로 형성되어 실링의 효과가 증대되고 결합력이 견고하여 누수가 방지되며, 디스크의 개폐동작을 원활하게 하는 동시에 실링구조의 내구성을 향상시켜 밸브의 내구 수명을 대폭적으로 연장시킬 수 있는 효과가 있다.As described above, according to the present invention, the seat ring is formed of a rubber sheet having excellent watertightness and a metal sheet having excellent durability, and the seating surface and each sheet are formed with curved surfaces corresponding to each other, so that the sealing effect is increased and the bonding force is firm. Therefore, leakage is prevented, and smoothing the opening and closing operation of the disk has the effect of significantly extending the durability life of the valve by improving the durability of the sealing structure.

Claims (4)

원통형상의 밸브몸체(1)와, 상기 밸브 몸체(1)의 내부에 축설되는 디스크(2)와, 상기 디스크(2)를 회전시켜 유체의 흐름을 제어하는 회전장치(3)로 구성되고, 상기 밸브몸체(1)의 내주연 중심에 몸체시트(5)가 설치되며, 상기 디스크(2)의 일측 주연에 안착면(21)이 형성되고, 상기 안착면(21)과의 사이에 시트링(6)을 개재한 상태로 안착면(21)에 체결되는 글랜드(7)로 구성되는 것에 있어서, 상기 시트링(6)을 안착면에 밀착 설치되는 러버시트(61)와, 러버시트(61)의 외측면에 밀착 설치되는 메탈시트(62)로 구성시키되, 상기 메탈시트(62)가 자체 탄성을 보유하는 탄성체로 구성되는 것을 특징으로 하는 버터플라이 밸브.A cylindrical valve body (1), a disk (2) arranged inside the valve body (1), and a rotating device (3) for rotating the disk (2) to control the flow of the fluid; The body seat 5 is installed at the inner circumferential center of the valve body 1, and a seating surface 21 is formed at one side circumference of the disk 2, and a seat ring between the seating surface 21 is formed. In the state consisting of a gland (7) fastened to the seating surface 21 in a state of interposing 6, the rubber seat 61 and the rubber seat (61) in which the seat ring (6) is closely attached to the seating surface. Butterfly valve, characterized in that consisting of a metal seat 62 is installed in close contact with the outer surface of the), the metal seat 62 is composed of an elastic body that retains its elasticity. 제 1 항에 있어서, 상기 러버시트(61) 일 측면 즉, 메탈시트(62)가 접하는 면에 상부 수직면(611)으로부터 돌출되는 돌출면(612)을 형성시키고, 돌출면(612)의 하단에 내측으로 경사를 이루는 경사면(613)을 형성시키며, 경사면(613)의 말단에 하부 수직면(614)을 형성시키고, 상기 러버시트(61)와 접하는 메탈시트(62)의 상부에 러버시트(61)의 상부 수직면(611)과 접하는 수직면(621)을 형성시키고, 수직면(621)의 하단에 돌출면(622)을 형성시키며, 글랜드(7)의 내측면에 각 시트(61)(62)의 돌출면(612)(622)이 삽입되는 홈부(71)를 형성시켜 구성되는 것을 특징으로 하는 버터플라이 밸브.According to claim 1, Protruding surface 612 protruding from the upper vertical surface 611 on one side of the rubber sheet 61, that is, the surface of the metal sheet 62 is in contact with, the lower end of the protruding surface 612 The inclined surface 613 is formed to be inclined inward, and the lower vertical surface 614 is formed at the end of the inclined surface 613, and the rubber sheet 61 is formed on the upper portion of the metal sheet 62 in contact with the rubber sheet 61. A vertical surface 621 is formed in contact with the upper vertical surface 611 of the, and a protruding surface 622 is formed at the lower end of the vertical surface 621, and the inner surface of the gland 7 of each sheet 61, 62 Butterfly valve, characterized in that formed by forming a groove portion 71 is inserted into the projecting surface (612, 622). 제 2 항에 있어서, 상기 메탈시트(62)의 돌출면(622) 하단에 완만한 곡율로 만곡지게 형성되어 몸체시트(5)의 상면과 접하는 곡면부(625)를 형성시켜 구성되는 것을 특징으로 하는 버터플라이 밸브.The method of claim 2, wherein the curved surface 622 is formed at the lower end of the protruding surface 622 of the metal sheet 62 is formed by forming a curved portion 625 in contact with the upper surface of the body sheet (5) Butterfly valve. 제 3 항에 있어서, 상기 곡면부(625)의 말단에 러버시트(61)의 하부 수직면(614)과 접촉되는 절곡부(626)를 형성시켜 구성되는 것을 특징으로 하는 버터플라이 밸브.4. The butterfly valve according to claim 3, wherein the butterfly valve is formed by forming a bent portion (626) in contact with the lower vertical surface (614) of the rubber seat (61) at the end of the curved portion (625).
KR1020060070206A 2006-07-26 2006-07-26 Butterfly valve Expired - Fee Related KR100758598B1 (en)

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