KR100702209B1 - Double blade valve - Google Patents

Double blade valve Download PDF

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Publication number
KR100702209B1
KR100702209B1 KR1020060080943A KR20060080943A KR100702209B1 KR 100702209 B1 KR100702209 B1 KR 100702209B1 KR 1020060080943 A KR1020060080943 A KR 1020060080943A KR 20060080943 A KR20060080943 A KR 20060080943A KR 100702209 B1 KR100702209 B1 KR 100702209B1
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KR
South Korea
Prior art keywords
blade
valve body
blades
air
valve
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KR1020060080943A
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Korean (ko)
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윤경렬
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(주)남광엔지니어링
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Priority to KR1020060080943A priority Critical patent/KR100702209B1/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
    • 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
    • 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
    • F16K1/226—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
    • 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

Abstract

본 발명에 따른 더블 블레이드밸브는, 관로와 연결되는 밸브바디(30)와, 밸브바디(30)내에 형성되는 회전축(40)을 기준으로 서로 반대방향으로 편심되는 한쌍의 블레이드(50)(50')와, 회전중심선을 기준으로 밸브바디(30)의 좌측내면에 구비되며 각 블레이드(50)(50')의 후면 가장자리에 각각 접하도록 배치되는 전후 좌측 실링림(32)(32')과, 회전중심선을 기준으로 밸브바디(30)의 우측내면에 구비되며 각 블레이드(50)(50')의 전면 가장자리에 각각 접하도록 배치되는 전후 우측 실링림(33)(33')과, 양 블레이드(50)(50') 사이의 차폐공간으로 고압에어를 공급하여 상기 차폐공간 내의 기압을 높임으로써 각 블레이드(50)(50')와 실링림(32)(32')(33)(33')간의 밀착도를 높이는 에어공급수단을 포함하여 이루어진다.The double blade valve according to the present invention is a pair of blades 50 and 50 'eccentrically opposed to each other based on a valve body 30 connected to a conduit and a rotating shaft 40 formed in the valve body 30. And the front and rear left sealing rims 32 and 32 'which are provided on the left inner surface of the valve body 30 on the basis of the center of rotation and are disposed to contact the rear edges of the respective blades 50 and 50'. The front and rear right sealing rims 33 and 33 'provided on the right inner surface of the valve body 30 on the basis of the center of rotation and disposed to contact the front edges of the respective blades 50 and 50', and both blades ( Each blade 50, 50 'and sealing rims 32, 32', 33 and 33 'are provided by supplying a high pressure air to the shielding space between 50 and 50' to increase the air pressure in the shielding space. It comprises an air supply means for increasing the adhesion between the liver.

본 발명에 따른 더블 블레이드밸브에 의하면 블레이드 및 실링림이 이중으로 구성되고, 차폐공간에 대한 에어실링 작용이 이루어지는 특성상 유로의 차단효과가 뛰어나며, 블레이드와 실링림이 면접촉되기 때문에 부품의 마모나 블레이드의 작동저항이 발생하지 않는 등 작동 안정성이 향상된다.According to the double blade valve according to the present invention, the blade and the sealing rim are composed of a double, the air sealing effect on the shielding space is excellent in the blocking effect of the flow path, because the blade and the sealing rim is in contact with the surface of the parts wear or blade Operational stability is improved, such as no operating resistance.

Description

더블 블레이드밸브{double blade valve}Double blade valve

도 1은 종래기술에 따른 버터플라이밸브를 나타낸 사시도이다.1 is a perspective view showing a butterfly valve according to the prior art.

도 2는 종래기술에 따른 버터플라이밸브에서 블레이드의 기밀구조를 나타낸 단면도이다.Figure 2 is a cross-sectional view showing the airtight structure of the blade in the butterfly valve according to the prior art.

도 3a, 3b는 본 발명의 실시예에 따른 더블 블레이드밸브를 나타낸 사시도이다.3A and 3B are perspective views illustrating a double blade valve according to an exemplary embodiment of the present invention.

도 4는 본 발명의 실시예에 따른 더블 블레이드밸브의 요부를 나타낸 단면도이다.4 is a cross-sectional view showing main parts of a double blade valve according to an exemplary embodiment of the present invention.

도 5a, 5b는 본 발명의 실시예에 따른 더블 블레이드밸브의 작동례를 나타낸 예시도이다.5A and 5B are exemplary views showing an operation example of a double blade valve according to an exemplary embodiment of the present invention.

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

30: 밸브바디 40: 회전축30: valve body 40: rotating shaft

32, 32': 좌측 실링림 33, 33': 우측 실링림 32, 32 ': left sealing rim 33, 33': right sealing rim

50, 50': 블레이드 60: 유압모터50, 50 ': Blade 60: Hydraulic motor

70: 에어주입코크 72: 자동제어기 70: air injection cock 72: automatic controller

본 발명은 버터플라이 밸브(butterfly damper)류의 일종으로서 블레이드를 이중으로 구성하여 차폐공간을 형성함으로써 차단효과가 향상되는 더블 블레이드밸브에 관한 것이다. The present invention relates to a double blade valve, which is a kind of butterfly damper, and has a double blade configured to provide a shielding space by forming a double blade.

일반적으로 버터플라이 밸브는 유체를 이동시키는 관로상에 배치되어 유체의 흐름을 선택적으로 차단하기 위한 것으로, 도 1에 나타난 것과 같이 관로와 연결되는 원통형상의 밸브바디(10)와, 상기 밸브바디(10)의 내부에 회전가능하게 축설되는 원반형태의 블레이드(20)와, 상기 블레이드(20)를 회전시키기 위한 구동장치(미도시)로 구성된다.In general, the butterfly valve is disposed on the pipeline for moving the fluid to selectively block the flow of the fluid, as shown in Figure 1 and a cylindrical valve body (10) connected to the pipeline and the valve body (10) The blade 20 is configured to be rotatably arranged inside the blade 20, and a drive device (not shown) for rotating the blade (20).

이러한 버터플라이 밸브에 의하면 구동장치를 이용하여 블레이드(20)를 회전시킴으로써 밸브바디(10) 내에서 형성되는 유로를 개방/차단하는 방식으로 작동되는데, 이와 같은 버터플라이 밸브에 있어서 유체의 흐름을 완벽하게 차단하기 위해서는 밸브바디(10)의 내주면과 블레이드(20) 외주연 사이의 기밀성이 매우 중요한 요인으로 작용하게 된다.According to such a butterfly valve, the blade 20 is rotated by using a driving device to open / block a flow path formed in the valve body 10. In such a butterfly valve, the flow of fluid is perfectly achieved. In order to shut off, the airtightness between the inner circumferential surface of the valve body 10 and the outer circumference of the blade 20 acts as a very important factor.

따라서, 이러한 기밀성을 향상시킬 수 있게 하기 위하여 종래에는 다양한 방식의 실링수단이 제공된 바 있으며, 그 중에 하나로서 밸브바디(10)의 내주면 중심에 바디시트(12)를 설치하고, 블레이드(20)의 외주연에 블레이드(20)가 닫힌 상태에서 바디시트(12)와 접촉되는 시트링(22)을 설치하는 방식 등이 있다.Therefore, in order to improve such airtightness, various sealing means have been provided in the related art. As one of them, the body seat 12 is installed at the center of the inner circumferential surface of the valve body 10, and the blade 20 There is a method of installing the seat ring 22 in contact with the body seat 12 in the state in which the blade 20 is closed on the outer periphery.

한편, 이러한 종래기술에 의하면 소기의 실링효과를 얻기 위해서는 시트링(22)이 바디시트(12)에 접촉되는 양을 증대시키는 동시에 강한 압력으로 시트링(22)과 바디시트(12)가 밀착되도록 해야 한다.On the other hand, according to the prior art to achieve the desired sealing effect to increase the amount of the seat ring 22 in contact with the body sheet 12 and at the same time so that the seat ring 22 and the body sheet 12 in close contact with a strong pressure. Should be.

따라서, 상대적으로 블레이드(10)의 개폐작동시 높은 마찰력에 의해 시트링(22)이 쉽게 손상되어 시간이 지남에 따라 누수를 발생시키고, 시트링(22)과 바디시트(12)의 마찰 때문에 블레이드(10) 작동이 원활하지 못하게 되는 문제점이 있었다.Accordingly, the seat ring 22 is easily damaged by the high frictional force during the opening and closing operation of the blade 10 to generate water leakage over time, and the blade is caused by the friction between the seat ring 22 and the body seat 12. (10) There was a problem that the operation is not smooth.

본 발명은 상기한 종래 문제점을 해결하고자 안출된 것으로, 이중구조의 블레이드 및 이와 면접촉되는 이중구조의 실링림이 구비됨으로써 밀폐성이 강화되고, 블레이드의 작동 또한 용이하게 이루어지는 더블 블레이드밸브의 제공을 목적으로 한다.The present invention has been made to solve the above-mentioned conventional problems, it is to provide a double blade valve made of a double structure and a sealing structure of the dual structure in contact with the surface is provided with a double sealing valve is made to enhance the sealing, and also easy operation of the blade It is done.

상기 목적을 달성하기 위하여 제공되는 더블 블레이드밸브는, 관로와 연결되는 밸브바디와, 상기 밸브바디를 관통하여 회전가능하게 장착되는 회전축에 의해 밸브바디 내에서 회전 가능하게 지지되며 일정간격을 두고 평행하게 배치됨과 더불어 밸브바디내에 형성되는 유로의 횡단면상에서 회전축을 기준으로 서로 반대방향으로 편심되는 한쌍의 블레이드와, 회전축이 이루는 회전중심선을 기준으로 밸브바디의 좌측내면에 구비되며 블레이드가 닫힌상태에서 각 블레이드의 후면 가장자리에 각각 접하도록 배치되는 전후 좌측 실링림(sealing rim)과, 회전축이 이루는 회전중심선을 기준으로 밸브바디의 우측내면에 구비되며 블레이드가 닫힌상태에서 각 블레이드의 전면 가장자리에 각각 접하도록 배치되는 전후 우측 실링림과, 상기 블레이드가 닫힌상태에서 양 블레이드 사이의 차폐공간으로 고압에어를 공급하여 상기 차폐공간 내의 기압을 높임으로써 각 블레이드와 실링림간의 밀착도를 높이는 에어공급수단을 포함하여 이루어진다.The double blade valve provided to achieve the above object is rotatably supported in the valve body by a valve body connected to the conduit and a rotating shaft rotatably mounted through the valve body and in parallel at a predetermined interval. A pair of blades eccentrically arranged in opposite directions with respect to the rotation axis on the cross section of the flow path formed in the valve body, and on the left inner surface of the valve body based on the rotation center line formed by the rotation axis, each blade with the blade closed Front and rear sealing rims arranged to be in contact with the rear edges of the valve and the right side of the valve body based on the center of rotation formed by the rotating shaft, and are arranged to be in contact with the front edge of each blade with the blades closed. The front and rear right sealing rim, and the blade is closed By supplying high pressure air to the space between the two shield blades in the condition by increasing the air pressure in the shielded space comprises an air supply means to increase the degree of adhesion between each blade and the sealing rim.

여기서, 상기 밸브바디 내면의 좌우측에 구성된 각 전후 실링림은 양 블레이드의 편심지지구조에 대응토록 밸브바디 내면에서의 돌출정도가 달리구성된다.Here, each of the front and rear sealing rims formed on the left and right sides of the valve body inner surface is configured so that the degree of protruding from the valve body inner surface so as to correspond to the eccentric support structure of both blades.

그리고, 상기 에어공급수단은, 밸브바디를 관통하여 설치되어 차폐공간측으로 주입구가 배치되는 에어주입코크와, 상기 에어주입코크를 통해 고압의 공기를 공급하는 에어컴프레셔를 포함하여 이루어진다. The air supply means includes an air injection cock installed through the valve body and having an injection hole disposed on the shielding space side, and an air compressor for supplying high pressure air through the air injection cock.

이하, 본 발명의 실시예를 첨부된 도 3a 부터 도 5b 까지 참조로 하여 상세하게 설명한다.Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to FIGS. 3A to 5B.

본 실시예에 따른 더블 블레이드밸브는, 도 3a, 3b에 나타난 것과 같이 관로와 연결되는 원통형의 밸브바디(30)와, 상기 밸브바디(30)를 관통하여 회전가능하게 장착되는 회전축(40)에 의해 밸브바디(30) 내에서 회전 가능하게 지지되며, 일정간격을 두고 평행하게 배치되는 한쌍의 블레이드(50)(50')와, 밸브바디(30)의 내면에 구비되어 각 블레이드(50)(50')와 접하여 양 블레이드(50)(50') 사이에 차폐공간을 형성하는 전후 좌측 실링림(32)(32') 및 전후 우측 실링림(33)(33')과, 블레이드(50)(50')가 닫힌 상태에서 양 블레이드(50)(50') 사이의 차폐공간으로 고압에어를 공급하여 상기 차폐공간 내의 기압을 높임으로써 각 블레이드(50)(50')와 실링림(32)(32')(33)(33')간의 밀착도를 높이는 에어공급수단을 포함하여 이루어진다.The double blade valve according to the present embodiment has a cylindrical valve body 30 connected to the conduit as shown in FIGS. 3A and 3B, and a rotating shaft 40 rotatably mounted through the valve body 30. It is rotatably supported in the valve body 30 by a pair of blades (50, 50 ') arranged in parallel with a predetermined interval, and provided on the inner surface of the valve body 30, each blade 50 ( 50 '), front and rear left sealing rims 32 and 32' and front and rear right sealing rims 33 and 33 'which form a shielding space between both blades 50 and 50' and the blade 50. Each blade 50, 50 'and sealing rim 32 are supplied by supplying a high pressure air to the shielding space between both blades 50 and 50' with the 50 'closed. And air supply means for enhancing the adhesion between the (32 ') (33) and the 33' (33 ').

밸브바디(30)의 외측에는 회전축(40)을 구동하기 위한 구동수단으로서 유압모터(60) 등이 구비된다.The outer side of the valve body 30 is provided with a hydraulic motor 60 or the like as a driving means for driving the rotary shaft 40.

상기 양 블레이드(50)(50')는 서로 동일한 크기 및 형태이나 밸브바디(30)내에 형성되는 유로의 횡단면상에서 볼 때 회전축중심을 기준으로 서로 반대방향으로 편심되게 배치된다.The blades 50 and 50 ′ are eccentrically arranged in opposite directions with respect to the center of the rotation axis when viewed in a cross section of a flow path formed in the valve body 30 with the same size and shape.

구체적으로는 도 에 나타난 것과 같이 전방 블레이드(50)가 좌측으로 편심될 경우, 후방 블레이드(50')는 우측으로 편심됨으로써 양 블레이드(50)(50')의 선단은 일정한 편심차를 유지하게 된다.Specifically, as shown in FIG. 5, when the front blade 50 is eccentrically to the left, the rear blade 50 'is eccentrically to the right, so that the front ends of both blades 50 and 50' maintain a constant eccentricity. .

그리고, 상기 전후 좌측 실링림(32)(32')은 회전축중심을 기준으로 밸브바디(30)의 좌측내면에 구비되는 것으로서, 블레이드(50)(50)가 닫힌상태에서 각 블레이드(50)(50')의 후면 가장자리에 각각 접하도록 배치되며, 상기 전후 우측 실링림(33)(33')은 회전축중심을 기준으로 밸브바디(30)의 우측내면에 구비되는 것으로서, 블레이드(50)(50')가 닫힌상태에서 각 블레이드(50)(50')의 전면 가장자리에 각각 접하도록 배치된다.(도 5a, 5b 참조)The front and rear left sealing rims 32 and 32 'are provided on the left inner surface of the valve body 30 on the basis of the rotation axis center, and each blade 50 in the closed state of the blades 50 and 50 ( 50 ') respectively disposed to be in contact with the rear edge, and the front and rear right sealing rims 33 and 33' are provided on the right inner surface of the valve body 30 with respect to the center of the rotation axis, and the blades 50 and 50. ') Is placed in contact with the front edge of each blade 50, 50' with closed (see FIGS. 5A, 5B).

여기서, 상기 밸브바디(30) 내면의 좌우측에 구성된 각 전후 실링림(32)(32')(33)(33')은 양 블레이드(50)(50')의 편심지지구조에 대응토록 밸브바디(30) 내면에서의 돌출정도가 달리구성된다.Here, each of the front and rear sealing rims 32, 32 ', 33, 33' configured on the left and right sides of the inner surface of the valve body 30 corresponds to the eccentric support structure of both blades 50, 50 '. (30) The degree of protrusion on the inner surface is configured differently.

즉, 도 4에 나타난 것과 같이 회전축(40)을 기준으로 전방 블레이드(50)가 좌측으로 편심된 경우에 있어서는 좌측 전방실링림(32)은 후방 블레이드(50')가 통과할 수 있도록 그 폭(돌출정도)(b1)이 짧게 구성되고, 좌측 후방실링림(32')은 후방 블레이드(50')와 접하도록 그 폭(b1')이 길게 구성된다.That is, in the case where the front blade 50 is eccentric to the left with respect to the rotation shaft 40 as shown in FIG. 4, the left front sealing rim 32 has its width so that the rear blade 50 'can pass therethrough ( The protrusion b) is short, and the left rear sealing rim 32 'has a long width b1' so as to contact the rear blade 50 '.

우측의 전후 실링림(33)(33')은 좌측의 전후 실링림(32)(32')과 대칭되는 폭(b2)(b2')을 갖는 구성으로 이루어진다.The front and rear sealing rims 33 and 33 'on the right side have a configuration having widths b2 and b2' symmetrical with the front and rear sealing rims 32 and 32 'on the left side.

상기 에어공급수단은, 밸브바디(30)를 관통하여 설치되며, 차폐공간측으로 주입구가 배치되는 에어주입코크(70)와, 상기 에어주입코크(70)를 통해 고압의 공기를 공급하는 에어컴프레셔(미도시)를 포함하여 이루어진다.The air supply means is installed through the valve body 30, the air injection cock 70, the injection port is disposed toward the shielded space, and the air compressor for supplying high-pressure air through the air injection cock (70) Not shown).

상기 에어주입코크(70)에는 에어컴프레서로부터 공급되는 공기의 주입을 제어할 수 있는 자동제어기(72)가 부착된다.An air controller 72 is attached to the air injection cock 70 for controlling the injection of air supplied from the air compressor.

이와 같은 본 실시예에 의한 더블 블레이드밸브는, 밸브바디(30)의 상방에 구비된 상기 유압모터(60) 등의 구동수단에 의해 회전축(40)이 작동됨으로써 각 블레이드(50)(50')가 회전되어 밸브바디(30)내의 유로를 개방/차단하게 되는데, 이러한 작동에 대해 설명하면 다음과 같다.In the double blade valve according to the present embodiment, the rotary shaft 40 is operated by driving means such as the hydraulic motor 60 provided above the valve body 30 so that each blade 50, 50 ′ is operated. Is rotated to open / block the flow path in the valve body 30, this operation will be described as follows.

먼저, 도 5a에 나타난 것과 같이 각 블레이드(50)(50')가 밸브바디(30) 내에 형성되는 유로의 길이방향 중심선과 평행하는 각도(0°)인 경우, 유로는 완전개방된 상태가 된다.First, as shown in FIG. 5A, when each blade 50, 50 ′ is at an angle (0 °) parallel to the longitudinal center line of the flow path formed in the valve body 30, the flow path is completely opened. .

그리고, 도 5b에 나타난 것과 같이 구동수단의 작동에 의해 회전축(40)이 일측으로 회전함으로써 양 블레이드(50)(50')가 유로의 길이방향 중심선과 직각을 이루는 각도(90°)에 이르게 되면 유로가 폐쇄되는데, 이때에는 양 블레이드(50)(50')의 좌측단 후면은 좌측 전후 실링림(32)(32')에 접하고, 우측단 전면이 우측 전후 실링림(33)(33')에 접하여 양 블레이드(50)(50') 사이에 차폐공간이 형성된다.As shown in FIG. 5B, when the rotating shaft 40 is rotated to one side by the operation of the driving means, both blades 50 and 50 'reach an angle 90 ° perpendicular to the longitudinal center line of the flow path. The flow path is closed, in which case the left end rear surface of both blades 50 and 50 'abuts the left front and rear sealing rims 32 and 32', and the right front surface is the right front and rear sealing rims 33 and 33 '. A shielding space is formed between the blades 50 and 50 'in contact with each other.

여기서, 상기 블레이드(50)(50')는 실링림(32)(32')(33)(33')과 면접촉되어 기밀을 유지하게 되며, 서로 간에 마찰이 발생하지 않는 구조이기 때문에 블레이드(50)(50')와 실링림(32)(32')(33)(33')이 마찰로 인해 마모되거나 블레이드(50)(50')의 작동에 저항이 가해지는 현상이 발생하지 않게 된다. Here, the blades 50, 50 'are in surface contact with the sealing rims 32, 32', 33, 33 'to maintain airtightness, and because the blades do not generate friction between each other, 50) 50 'and sealing rims 32, 32', 33, 33 'will not wear out due to friction or resistance to operation of blades 50 and 50' will not occur. .

블레이드(50)(50')가 닫힌 후에는 에어컴프레서로부터 공급되는 고압의 공기가 에어주입코크(70)를 통해 차폐공간으로 주입됨으로써 차폐공간내의 기압이 높아지게 되고, 이에 따라 각 블레이드(50)(50')와 실링림(32)(32')(33)(33')과의 밀착상태가 강화되는 이른바 에어실링 작용이 이루어짐으로써 기밀도가 향상된다.After the blades 50 and 50 'are closed, the high pressure air supplied from the air compressor is injected into the shielding space through the air injection cock 70, so that the air pressure in the shielding space is increased, and thus each blade 50 ( The airtightness is improved by the so-called air sealing action in which the close contact between the 50 ') and the sealing rims 32, 32', 33 and 33 'is enhanced.

이와 같은 본 실시예에 있어서, 에어공급수단을 사용하기 위한 조건으로서는 이송대상물이 기체 내지는, 분체를 함유한 기체로 한정되어야 하며, 액체를 이송하는 경우에는 에어공급수단을 사용하지 않는 것이 바람직하다.In this embodiment, as a condition for using the air supply means, the object to be conveyed should be limited to a gas or a gas containing powder, and it is preferable not to use the air supply means to convey the liquid.

이상에서 살펴본 바와 같은 본 발명에 따른 더블 블레이드밸브에 의하면 블레이드 및 실링림이 이중으로 구성되고, 차폐공간에 대한 에어실링 작용이 이루어지는 특성상 유로의 차단효과가 뛰어나며, 블레이드와 실링림이 면접촉되기 때문에 부품의 마모나 블레이드의 작동저항이 발생하지 않는 등 작동 안정성이 향상된다.According to the double blade valve according to the present invention as described above, the blade and the sealing rim is composed of a double, because the air sealing effect on the shielding space is excellent in the blocking effect of the flow path, because the blade and the sealing rim is in surface contact Operational stability is improved, such as no wear of components or operating resistance of blades.

Claims (3)

관로와 연결되는 밸브바디; Valve body connected to the pipeline; 상기 밸브바디를 관통하여 회전가능하게 장착되는 회전축에 의해 밸브바디 내에서 회전 가능하게 지지되며, 일정간격을 두고 평행하게 배치됨과 더불어 회전중심축을 기준으로 서로 반대방향으로 편심되는 한쌍의 블레이드; A pair of blades rotatably supported in the valve body by a rotating shaft rotatably mounted through the valve body, disposed in parallel at a predetermined interval, and eccentrically opposed to each other based on the center of rotation; 회전축이 이루는 회전중심선을 기준으로 밸브바디의 좌측내면에 구비되며, 블레이드가 닫힌상태에서 각 블레이드의 후면 가장자리에 각각 접하도록 배치되는 전후 좌측 실링림(sealing rim); A front and rear left sealing rim disposed on a left inner surface of the valve body based on the center of rotation formed by the rotating shaft, the blades being in contact with the rear edges of the respective blades in a closed state; 회전축이 이루는 회전중심선을 기준으로 밸브바디의 우측내면에 구비되며, 블레이드가 닫힌상태에서 각 블레이드의 전면 가장자리에 각각 접하도록 배치되는 전후 우측 실링림;A front and rear right sealing rim provided on the right inner surface of the valve body based on the rotation center line formed by the rotating shaft, the blades being in contact with the front edge of each blade in a closed state; 상기 밸브바디를 관통하여 설치되어 차폐공간측으로 주입구가 배치되는 에어주입코크와, 상기 에어주입코크를 통해 고압의 공기를 공급하는 에어컴프레서를 포함하여 구성됨으로써, 상기 블레이드가 닫힌상태에서 양 블레이드 사이의 차폐공간으로 고압에어를 공급하여 상기 차폐공간 내의 기압을 높임으로써 각 블레이드와 실링림간의 밀착도를 높이는 에어공급수단;Air injection coke installed through the valve body and the injection hole is disposed toward the shielded space, and an air compressor for supplying high-pressure air through the air injection coke, so that the blade between both blades in a closed state Air supply means for supplying a high pressure air to the shielding space to increase the air pressure in the shielding space to increase the adhesion between the blade and the sealing rim; 을 포함하여 이루어지는 더블 블레이드밸브. Double blade valve made of a. 제1항에 있어서, The method of claim 1, 상기 밸브내면의 좌우측에 구성된 각 전후 실링림은 양 블레이드의 편심지지구조에 대응토록 밸브내면에서의 돌출정도가 달리구성되는 것Each of the front and rear sealing rims formed on the left and right sides of the valve inner surface is configured to have a different degree of protruding from the valve inner surface to correspond to the eccentric support structure of both blades. 을 특징으로 하는 더블 블레이드밸브.Double blade valve characterized in that. 삭제delete
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Publication number Priority date Publication date Assignee Title
KR20200114785A (en) * 2019-03-29 2020-10-07 함광식 Air sealing damper for preventing leakage of sealing air
KR102188910B1 (en) 2019-11-28 2020-12-09 주식회사 디에이치콘트롤스 High Temperature Air Sealing Butterfly Valve
KR102295552B1 (en) 2020-06-17 2021-08-31 주식회사 디에이치콘트롤스 Air sealing control valve with improved emission reduction of exhaust gas
KR102313841B1 (en) 2020-08-19 2021-10-19 주식회사 브이티엘 High Temperature Damper
KR102329529B1 (en) * 2020-07-30 2021-11-23 주식회사 디에이치콘트롤스 Exhaust gas control valve for diverter type scrubber
KR20230025545A (en) * 2021-08-12 2023-02-22 주식회사 브이티엘 Air sealing damper with easy maintenance
KR102585015B1 (en) 2022-11-30 2023-10-06 이상길 Double disk valve for scrubber system

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JPS6030871A (en) 1983-07-28 1985-02-16 Sekkei Kogyo Kk Liquid sealing valve
JPH094726A (en) * 1995-06-20 1997-01-07 Kubota Corp High temperature butterfly valve
JPH09196191A (en) * 1996-01-24 1997-07-29 Kubota Corp Butterfly valve for powder-containing gas

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JPS6030870A (en) 1983-07-28 1985-02-16 Sekkei Kogyo Kk Blockading method of pneumatic tube
JPS6030871A (en) 1983-07-28 1985-02-16 Sekkei Kogyo Kk Liquid sealing valve
JPH094726A (en) * 1995-06-20 1997-01-07 Kubota Corp High temperature butterfly valve
JPH09196191A (en) * 1996-01-24 1997-07-29 Kubota Corp Butterfly valve for powder-containing gas

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20200114785A (en) * 2019-03-29 2020-10-07 함광식 Air sealing damper for preventing leakage of sealing air
KR102184759B1 (en) * 2019-03-29 2020-11-30 함광식 Air sealing damper for preventing leakage of sealing air
KR102188910B1 (en) 2019-11-28 2020-12-09 주식회사 디에이치콘트롤스 High Temperature Air Sealing Butterfly Valve
WO2021107282A1 (en) * 2019-11-28 2021-06-03 주식회사 디에이치콘트롤스 Air-sealing butterfly valve for high temperatures
KR102295552B1 (en) 2020-06-17 2021-08-31 주식회사 디에이치콘트롤스 Air sealing control valve with improved emission reduction of exhaust gas
KR102329529B1 (en) * 2020-07-30 2021-11-23 주식회사 디에이치콘트롤스 Exhaust gas control valve for diverter type scrubber
KR102313841B1 (en) 2020-08-19 2021-10-19 주식회사 브이티엘 High Temperature Damper
KR20230025545A (en) * 2021-08-12 2023-02-22 주식회사 브이티엘 Air sealing damper with easy maintenance
KR102539329B1 (en) 2021-08-12 2023-06-05 주식회사 브이티엘 Air sealing damper with easy maintenance
KR102585015B1 (en) 2022-11-30 2023-10-06 이상길 Double disk valve for scrubber system

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