KR102340187B1 - Expandable seat type butterfly valve - Google Patents

Expandable seat type butterfly valve Download PDF

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Publication number
KR102340187B1
KR102340187B1 KR1020210056983A KR20210056983A KR102340187B1 KR 102340187 B1 KR102340187 B1 KR 102340187B1 KR 1020210056983 A KR1020210056983 A KR 1020210056983A KR 20210056983 A KR20210056983 A KR 20210056983A KR 102340187 B1 KR102340187 B1 KR 102340187B1
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South Korea
Prior art keywords
valve body
seat member
expansion
seat
valve
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KR1020210056983A
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Korean (ko)
Inventor
김성진
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주식회사 무성
김성진
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Priority to KR1020210056983A priority Critical patent/KR102340187B1/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
    • F16K1/226—Shaping or arrangements of the sealing
    • F16K1/2263—Shaping or arrangements of the sealing the sealing being arranged on the valve seat
    • 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
    • F16K1/32—Details
    • F16K1/34—Cutting-off parts, e.g. valve members, seats
    • F16K1/46—Attachment of sealing rings
    • F16K1/465—Attachment of sealing rings to the valve seats

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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 an expandable seat-type butterfly valve. The expandable seat-type butterfly valve comprises: a valve body; a rotating shaft vertically penetrating the valve body; a disk rotating along the rotating shaft inside the valve body; a seat member tightly coupled along the inner circumferential surface of the valve body; and an expansion means applying an expansion force to the seat member. According to the present invention, the disk comes in contact with the seat member expanded by compressed air to close the valve body, and rotates in a non-contact state resulting from the seat member's contact by an elastic force of the seat member, to open the valve body. Therefore, unlike conventional ones, there is no wear or damage to the seat member, so it is possible to greatly reduce the cost and effort caused by maintenance of the seat member. In addition, since a capacity of an actuator that rotates the disk is minimized, the valve can be made compact and related parts become light, thereby greatly reducing manufacturing costs.

Description

팽창 시트형 버터플라이 밸브 {Expandable seat type butterfly valve}Expandable seat type butterfly valve

본 발명은 흐름방향에 직각으로 설치된 회전축을 중심으로 디스크가회전하면서 관로를 개폐하는 버터플라이 밸브에 관한 것으로서, 보다 상세하게는 밸브몸체에 설치된 시트부재가 디스크와 마찰되면서 발생되는 마모현상을 방지하는 팽창 시트형 버터플라이 밸브에 관한 것이다.The present invention relates to a butterfly valve that opens and closes a conduit while a disk rotates around a rotational shaft installed at right angles to the flow direction, and more particularly, prevents wear caused by a seat member installed on the valve body rubbing against the disk It relates to an expansion seat type butterfly valve.

일반적으로 버터플라이 밸브는 흐름방향에 직각으로 설치된 회전축을 중심으로 디스크가 회전하면서 관로를 개폐하는 밸브를 말한다.In general, a butterfly valve refers to a valve that opens and closes a pipeline while a disk rotates about a rotational shaft installed at right angles to the flow direction.

그리고 종래특허기술의 일례로서 국내공개특허공보 제10-2009-0016819호 도 1은 종래의 버터플라이 밸브 사시도로서, 도시된 바와 같이, 종래의 버터플라이 밸브(1)는 밸브몸체(10)와, 상기 밸브몸체(10)를 수직으로 관통하는 회전축(20)과, 상기 밸브몸체(10)의 내부에서 상기 회전축(20)을 따라 회전하도록 설치된 디스크(Disk; 30)와, 상기 디스크(30)의 외주면에 결합되어 상기 밸브몸체(10)의 내주면에 밀착되는 탄성소재의 시트부재(40)와, 상기 회전축(20)에 구동력을 부여하도록 상기 밸브몸체(10)의 상단에 설치된 액츄에이터(Actuator; A)로 구성된다.And as an example of prior patent technology, Korean Patent Application Laid-Open No. 10-2009-0016819 FIG. 1 is a perspective view of a conventional butterfly valve, as shown, a conventional butterfly valve 1 includes a valve body 10 and, A rotation shaft 20 vertically penetrating the valve body 10, a disk 30 installed to rotate along the rotation shaft 20 inside the valve body 10, and the disk 30 A seat member 40 of an elastic material coupled to the outer circumferential surface and in close contact with the inner circumferential surface of the valve body 10, and an actuator installed at the upper end of the valve body 10 to apply a driving force to the rotation shaft 20 (Actuator; A) ) is composed of

따라서, 액츄에이터(A)를 통해 회전축(20)이 회전하게 되면 밸브몸체(10) 내부에서 디스크(30)가 회전하게 되고 회전각도에 따라 디스크(30)의 가장자리가 시트부재(40)에 밀착 또는 이격되면서 밸브몸체(10)의 개폐가 이루어지게 된다.Therefore, when the rotation shaft 20 rotates through the actuator A, the disk 30 rotates inside the valve body 10, and the edge of the disk 30 is in close contact with the seat member 40 according to the rotation angle or The valve body 10 is opened and closed while being spaced apart.

그러나, 상기와 같은 종래의 버터플라이 밸브(1)는 디스크(30) 회전시 시트부재(40) 사이에 마찰이 발생되고 이 과정에서 시트부재(40)가 마모되는 문제가 발생된다.However, in the conventional butterfly valve 1 as described above, friction occurs between the seat members 40 when the disk 30 rotates, and in this process, the seat member 40 wears out.

또한, 공개특허공보 공개번호 10-2013-0041493호에는 게이트밸브 및 게이트밸브의 플랜지 결합구조가 공개되어 있다. 그러나 상기 종래의 버터플라이 밸브는 시트부재의 조기 마모로 인한 잦은 유지보수가 요구될 뿐만 아니라 밸브몸체와 디스크 사이의 기밀유지 성능 저하가 발생되는 단점이 있었다.In addition, Laid-Open Patent Publication No. 10-2013-0041493 discloses a gate valve and a flange coupling structure of the gate valve. However, the conventional butterfly valve has disadvantages in that frequent maintenance is required due to premature wear of the seat member, as well as deterioration in airtight maintenance performance between the valve body and the disk.

본 발명은 상기한 문제점들을 해결하기 위해 안출된 것으로서, 디스크 회전시 시트부재가 마찰되면서 발생되는 마모현상이 방지되는 팽창 시트형 버터플라이 밸브를 제공하고자 하는 것이다.The present invention has been devised to solve the above problems, and an object of the present invention is to provide an expansion seat type butterfly valve that prevents abrasion caused by friction of a seat member during disk rotation.

상기 목적을 달성하기 위해, 본 발명의 팽창 시트형 버터플라이 밸브는 밸브몸체와, 상기 밸브몸체를 수직으로 관통하는 회전축과, 상기 밸브몸체의 내부에서 상기 회전축을 따라 회전하는 디스크와, 상기 벨브몸체의 내주면을 따라 밀착결합된 시트부재와, 상기 시트부재에 팽창력을 부여하는 팽창수단을 포함한다.In order to achieve the above object, an expansion seat type butterfly valve of the present invention includes a valve body, a rotation shaft vertically penetrating the valve body, a disk rotating along the rotation shaft inside the valve body, and the valve body. It includes a sheet member closely coupled along the inner circumferential surface, and expansion means for applying an expansion force to the sheet member.

또한, 상기 시트부재는 탄성소재로 이루어질 수 있다.In addition, the sheet member may be made of an elastic material.

이 경우, 상기 시트부재는 실리콘 러버인 것이 바람직하다.In this case, the sheet member is preferably a silicone rubber.

한편, 상기 시트부재는 밸브몸체의 내주면에 밀착되는 중앙부와 상기 밸브몸체의 양측부에 밀착 결합되도록 상기 중앙부의 양측으로부터 연장형성된 결합단부를 구비한 디귿자 단면을 가진 링 형태로 구성될 수 있다.On the other hand, the seat member may be configured in the form of a ring having a cross section having a central portion in close contact with the inner circumferential surface of the valve body and coupling ends extending from both sides of the central portion to be closely coupled to both sides of the valve body.

이 경우, 상기 결합단부에는 밸브몸체를 향해 끼움돌기가 형성되고, 상기 밸브몸체에는 상기 끼움돌기에 대응되는 끼움홈이 형성될 수 있다.In this case, a fitting protrusion may be formed at the coupling end toward the valve body, and a fitting groove corresponding to the fitting protrusion may be formed in the valve body.

한편, 상기 팽창수단은 상기 시트부재의 중앙부와 연통되게 상기 밸브몸체에 형성된 유로와, 상기 유로와 마주하는 시트부재의 중앙부의 외주면을 따라 형성된 요홈과, 상기 유로로 에어를 주입/배출하는 솔레노이드밸브 유닛을 포함할 수 있다.On the other hand, the expansion means includes a flow path formed in the valve body to communicate with the central portion of the seat member, a groove formed along the outer circumferential surface of the central portion of the seat member facing the flow path, and a solenoid valve for injecting/discharging air into the flow path. may contain units.

상기와 같이 구성된 본 발명은 디스크가 압축공기에 의하여 팽창하는 시트부재에 밀착되면서 밸브몸체를 폐쇄하고 시트부재의 탄성력에 의하여 수축하여 상호간에 접촉이 해제된 상태에서 회전하여 밸브몸체를 개방시키므로, 종래와는 달리 시트부재의 마모나 손상이 전혀 발생되지 않아 시트부재의 유지보수에 따른 비용과 수고를 크게 절감할 수 있는 효과가 있다.The present invention configured as described above closes the valve body while the disk is in close contact with the seat member expanded by compressed air, contracts by the elastic force of the seat member, rotates in a state in which contact is released, and opens the valve body. Unlike this, there is no wear or damage to the seat member at all, so there is an effect that can greatly reduce the cost and effort due to the maintenance of the seat member.

뿐만 아니라, 본 발명은 디스크를 회전시키는 액츄에이터의 용량을 최소화시킴으로써 밸브를 컴팩트화 시킬 수 있고 관련 부품들을 경량화하여 제작비용도 크게 절감시킬 수 있는 효과도 있다.In addition, the present invention has the effect that the valve can be made compact by minimizing the capacity of the actuator that rotates the disk, and the manufacturing cost can be greatly reduced by reducing the weight of related parts.

도 1은 종래의 버터플라이 밸브 사시도.
도 2는 본 발명에 따른 팽창 시트형 버터플라이 밸브 사시도.
도 3은 본 발명에 따른 팽창 시트형 버터플라이 밸브의 분해사시도.
도 4는 본 발명에 따른 팽창 시트형 버터플라이 밸브의 단면도.
도 5는 본 발명에 따른 팽창 시트형 버터플라이 밸브의 다른 실시례 단면도.
도 6은 본 발명에 따른 팽창 시트형 버터플라이 밸브의 사용상태 단면도.1 is a perspective view of a conventional butterfly valve.
2 is a perspective view of an expansion seat type butterfly valve according to the present invention;
3 is an exploded perspective view of an expansion seat type butterfly valve according to the present invention;
4 is a cross-sectional view of an expansion seat type butterfly valve according to the present invention.
5 is a cross-sectional view of another embodiment of an expansion seat type butterfly valve according to the present invention.
6 is a cross-sectional view of the use of an expansion seat type butterfly valve according to the present invention.

본발명을 첨부도면에 의해 상세히 설명하면 다음과 같다.The present invention will be described in detail with reference to the accompanying drawings as follows.

도 2는 본 발명에 따른 팽창 시트형 버터플라이 밸브 사시도이고, 도 3은 본 발명에 따른 팽창 시트형 버터플라이 밸브의 분해사시도이며, 도 4는 본 발명에 따른 팽창 시트형 버터플라이 밸브의 단면도로서, 도시된 바와 같이, 본 발명의 팽창 시트형 버터플라이 밸브(100)는 밸브몸체(110)와, 상기 밸브몸체(110)를 수직으로 관통하는 회전축(120)과, 상기 밸브몸체(110)의 내부에서 상기 회전축(120)을 따라 회전하는 디스크(130)를 기본적으로 구비한다.2 is a perspective view of the expansion seat type butterfly valve according to the present invention, FIG. 3 is an exploded perspective view of the expansion seat type butterfly valve according to the present invention, and FIG. 4 is a cross-sectional view of the expansion seat type butterfly valve according to the present invention, shown As described above, the expansion seat type butterfly valve 100 of the present invention includes a valve body 110 , a rotation shaft 120 vertically penetrating the valve body 110 , and the rotation shaft inside the valve body 110 . A disk 130 rotating along 120 is basically provided.

상기 밸브몸체(110)와 회전축(120)과 디스크(130)는 종래와 대동소 이하므로 상세한 설명은 생략한다.Since the valve body 110, the rotation shaft 120, and the disk 130 are substantially the same as in the prior art, a detailed description thereof will be omitted.

본 발명에 따르면, 상기 밸브몸체(110)의 내주면에는 시트부재(140)가 결합된다.According to the present invention, the seat member 140 is coupled to the inner circumferential surface of the valve body 110 .

상기 시트부재(140)는 팽창이 가능하도록 탄성소재로 제작된다.The seat member 140 is made of an elastic material to enable expansion.

상기 탄성소재로는 실리콘 러버(Silicon Rubber)가 바람직하다.As the elastic material, silicone rubber is preferable.

상기 실리콘 러버는 내열성과 내경화성이 우수한 특성을 가지므로 장기간 사용하여도 마모가 발생되지 않아 반영구적으로 사용이 가능하다.Since the silicone rubber has excellent heat resistance and hardening resistance, abrasion does not occur even after long-term use, so that it can be used semi-permanently.

상기 시트부재(140)는 밸브몸체(110)의 내주면을 따라 긴밀하게 밀착되도록 결합된다.The seat member 140 is coupled to closely adhere to the inner circumferential surface of the valve body 110 .

이 경우, 상기 시트부재(140)는 밸브몸체(110)의 내주면에 밀착되는 중앙부(141)와, 상기 밸브몸체(110)의 양측부에 밀착 결합되도록 상기 중앙부(141)의 양측으로부터 연장형성된 결합단부(142)를 구비한 디귿자(ㄷ) 단면을 가진 링형태로 이루어질 수 있다.In this case, the seat member 140 has a central portion 141 in close contact with the inner circumferential surface of the valve body 110 and a coupling extending from both sides of the central portion 141 so as to be closely coupled to both sides of the valve body 110 . It may be made in the form of a ring having a cross-section of a digut (c) having an end (142).

상기 결합단부(142)는 밸브몸체(110)의 양측면을 따라 밀착된 상태로 끼움방식으로 결합되도룩 구성된다.The coupling end 142 is configured to be coupled by a fitting method in a state in close contact along both sides of the valve body 110 .

이 경우, 상기 결합단부(142)에는 밸브몸체(110)의 양측면을 향해 끼움돌기(143)가 형성되고, 상기 밸브몸체(110)에는 상기 끼움돌기(143)에 대응되는 끼움홈(112)이 형성될 수 있다.In this case, fitting protrusions 143 are formed in the coupling end 142 toward both sides of the valve body 110 , and fitting grooves 112 corresponding to the fitting protrusions 143 are formed in the valve body 110 . can be formed.

한편, 상기 시트부재(140)에 팽창력을 부여하는 팽창수단(150)을 구비한다.On the other hand, the sheet member 140 is provided with an expansion means 150 for applying the expansion force.

이 경우, 상기 팽창수단(150)은 시트부재(140)의 중앙부(141)와 연통되게 상기 밸브몸체(110)에 형성된 유로(151)와, 상기 유로(151)와 마주하는 시트부재(140)의 중앙부(141)의 외주면을 따라 형성된 요홈(152)과, 상기 유로(151)로 에어를 주입/배출하는 솔레노이드밸브 유닛(Solenoid Valve Unit; 153)으로 구성될 수 있다.In this case, the expansion means 150 includes a flow path 151 formed in the valve body 110 to communicate with the central portion 141 of the seat member 140 , and a seat member 140 facing the flow path 151 . It may be composed of a groove 152 formed along the outer peripheral surface of the central portion 141 of the, and a solenoid valve unit (Solenoid Valve Unit; 153) for injecting/discharging air to the flow path (151).

따라서, 상기 솔레노이드밸브 유닛(153)을 통한 압축공기가 유로(151)를 통해 시트부재(140)의 요홈(152)으로 주입되면 상기 요홈(152)의 두께가 주변보다 얇기 때문에 상기 요홈(152)을 중심으로 상기 시트부재(140)의 중앙부(141)가 밸브몸체(110)의 중앙을 향해 부풀어 오르면서 팽창하게 된다.Therefore, when the compressed air through the solenoid valve unit 153 is injected into the groove 152 of the seat member 140 through the flow passage 151, the thickness of the groove 152 is thinner than the periphery of the groove 152. The central portion 141 of the seat member 140 expands while inflating toward the center of the valve body 110 , based on the .

한편, 상기 시트부재(140)의 중앙부(141)가 밸브몸체(110)의 중앙을 향해 팽창되는 것을 감안할 때, 상기 끼움돌기(143)와 끼움홈(112)은 시트부재(140)가 팽창할 때 밸브몸체(110)로부터 이탈되지 않도록 밸브몸체(110)의 양측면에 대하여 직교하는 방향으로 형성되는 것이 바람직하다.On the other hand, considering that the central portion 141 of the seat member 140 expands toward the center of the valve body 110, the fitting protrusion 143 and the fitting groove 112 are the seat member 140 to expand. It is preferably formed in a direction orthogonal to both sides of the valve body 110 so as not to be separated from the valve body 110 when it is formed.

이와 같이 구성된 본 발명의 팽창 시트형 버터플라이 밸브(100)는 다음과 같이 동작된다.The expansion seat type butterfly valve 100 of the present invention configured as described above operates as follows.

도 6a에 도시된 바와 같이, 디스크(130)가 밸브몸체(110)를 폐쇄하도록 회전하면, 유로(151)를 통해 압축공기가 주입된다.As shown in FIG. 6A , when the disk 130 rotates to close the valve body 110 , compressed air is injected through the flow path 151 .

상기 유로(151)로 주입된 압축공기는 유로(151)를 빠져나와 시트부재(140)의 중앙부(141)로 배출되면서 상기 중앙부(141)에 형성된 요홈(152)을 밸브몸체(110)의 중앙으로 가압하게 되며, 그 결과 상기 시트부재(140)의 내측면 중앙부(141)가 밸브몸체(110)의 중앙을 향해 팽창하게 되면서 상기 디스크(130)의 가장자리를 따라 밀착된다.The compressed air injected into the flow path 151 exits the flow path 151 and is discharged to the central portion 141 of the seat member 140 , and the groove 152 formed in the central portion 141 is formed in the center of the valve body 110 . As a result, the inner surface central portion 141 of the seat member 140 expands toward the center of the valve body 110 and is in close contact along the edge of the disk 130 .

이와 같이, 시트부재(140)가 디스크(130)에 밀착되면 밸브몸체(110)가 완전히 폐쇄되면서 완전한 기밀이 유지된다.In this way, when the seat member 140 is in close contact with the disk 130, the valve body 110 is completely closed while maintaining complete airtightness.

한편, 폐쇄된 밸브몸체(110)와 디스크(130)을 개방하고자 할 경우에는 도 6b에 도시된 바와 같이, 유로(151)를 통해 시트부재(140) 측으로 주입되었던 압축공기를 급속 배출시키면 된다.On the other hand, when the closed valve body 110 and the disk 130 are to be opened, the compressed air injected into the seat member 140 side through the flow path 151 may be rapidly discharged as shown in FIG. 6b .

압축공기가 급속 배출되면, 팽창되었던 시트부재(140)가 수축되면서 디스크(130)와 시트부재(140)는 이격되며, 이와 같은 이격된 상태하에서 회전축(120)을 회전시키면 상기 디스크(130)가 회전축(120)을 따라 회전하면서 폐쇄되었던 밸브몸체(110)가 개방된다.When the compressed air is rapidly discharged, the disc 130 and the seat member 140 are spaced apart as the expanded seat member 140 is contracted. The valve body 110, which was closed while rotating along the rotation shaft 120, is opened.

이때, 상기 디스크(130)는 시트부재(140)와의 접촉이 해제된 상태이므로 별다른 저항없이 최소한의 회전력만으로 회전이 이루어지게 되며, 상기 시트부재(140)는 디스크(130)와의 접촉이 없어 마모나 손상이 전혀 발생되지 않게 된다.At this time, since the disk 130 is in a state in which contact with the seat member 140 is released, rotation is made with minimal rotational force without any particular resistance, and the seat member 140 does not come into contact with the disk 130 to cause wear or tear. No damage will occur at all.

따라서, 회전축(120)을 회전시키는 액츄에이터(A)의 용량을 최소화시킬 수 있게 되며, 상기 회전축(120)과 밸브몸체(110)와 디스크(130)와 같은 관련부품들을 컴팩트화 및 경량화도 가능해진다.Therefore, it is possible to minimize the capacity of the actuator (A) for rotating the rotating shaft 120, and the related parts such as the rotating shaft 120, the valve body 110, and the disk 130 can be made compact and lightweight. .

한편, 본발명 팽창 시트형 버터플라이 밸브제조 시트부재를 제조하기 위한 금형에 대해 설명하면, 본발명에 사용되는 시트부재 금형은 탄성소재인 실리콘 러버(Silicon Rubber)를 제조하기 위한 금속 내지 내열플라스틱 재질로 상하금형으로 제작된다.On the other hand, when describing the mold for manufacturing the seat member for manufacturing the expansion seat type butterfly valve of the present invention, the seat member mold used in the present invention is made of a metal or heat-resistant plastic material for manufacturing silicone rubber, which is an elastic material. Manufactured in upper and lower molds.

시트부재(140)는 상기에서 설명한 바와 같이, 밸브몸체(110)의 내주면에 밀착되는 중앙부(141)와, 상기 밸브몸체(110)의 양측부에 밀착 결합되도록 상기 중앙부(141)의 양측으로부터 연장형성된 결합단부(142)를 구비한 디귿자(ㄷ) 단면을 가진 링형태로 이루어진다.As described above, the seat member 140 extends from both sides of the central portion 141 in close contact with the inner circumferential surface of the valve body 110 and the central portion 141 so as to be closely coupled to both sides of the valve body 110 . It is formed in a ring shape having a cross-section of a digut character (c) having a coupling end 142 formed therein.

그러므로 금형의 여러 실시례로서 금형은 상하금형외 중앙부의 공기주입구를 성형하기 위한 중간금형을 별도로 구비할 수 있다. 또는 공기주입구 내지 결합단부는 금속이나 강도가 큰 플라스틱으로 제작되어 인서트사출방법에 의해 제작할 수 있다. 또는 결합단부에는 금속판재를 인서트 하여 실리콘 러버와 일체화하여 제작할 수 있다. 특히 결합단부는 빠른 냉각을 위해 금형 외부에는 냉각수 내지 냉금(칠러)를 배치하여 열적 불균일이 발생하지 않게 하여 시트부재가 모든 부위에 균일한 탄성력을 가지게 할 수 있다.Therefore, as various embodiments of the mold, the mold may separately include an intermediate mold for molding the air inlet in the central part outside the upper and lower molds. Alternatively, the air inlet or the coupling end may be made of metal or high-strength plastic and manufactured by an insert injection method. Alternatively, it can be manufactured by inserting a metal plate into the coupling end and integrating it with the silicon rubber. In particular, at the coupling end, cooling water or a chiller (chiller) is disposed outside the mold for rapid cooling to prevent thermal non-uniformity from occurring, so that the sheet member can have uniform elasticity in all parts.

상기 시트부재의 중앙부는 디스크 외주면에 맞닿는 부위가 단차가 형성되되 중앙팽창부가 낮고 전후팽창부인 주위가 높게 형성되어 압축공기에 의해 힘이 가해지면서 디스크와 결합되면 안정적으로 중앙부위에 정확히 결합되게 한다. The central portion of the seat member has a stepped portion in contact with the outer circumferential surface of the disk, but the central expansion portion is low and the periphery of the front and rear expansion portion is high.

또한, 중심팽창부와 전후팽창부의 재질이 다르므로 밀착력이 다르며 상기 전후팽창부의 밀착력이 중앙팽창력의 재질보다 연질로 구성한다. 그러므로 중심팽창부에 의해 파지력이 커지면서도, 전후팽창부에 의해 기밀성도 확보되는 현저한 효과가 있다.In addition, since the materials of the central expansion unit and the front and rear expansion units are different, the adhesion is different, and the adhesion force of the front and rear expansion units is softer than the material of the central expansion force. Therefore, while the gripping force is increased by the central expansion unit, there is a remarkable effect that airtightness is also secured by the front and rear expansion units.

이때 브몸체(110)로부터의 공기 주입유로를 달리 형성하여 먼저 중앙부의 전후팽창부가 먼저 팽창한 후에 중심팽창부가 팽창하게 구성하여 효율성을 도모한다. 이는 도 6에 상세하게 도시된 바와 같이, 시트부재와 맞닿는 밸브몸체(110) 중앙부의 도면에 도시된 홈에 공기가 주입되면, 홈형상을 단면이 평면이 아닌 중심외주연이 더 깊게 파지게 하여, 주입된 공기가 디스크 외주연 주위부터 감싼후 디스크 중심을 잡아주게 공급하여 안정적인 동작이 되게 한다.공기가 빠져나갈때도 강도가 강한 중심부터 빠져나가므로 마찰손상이 적게 된다.At this time By forming a different air injection flow path from the body 110, first, the front and rear expansion parts of the central part expand first, and then the central expansion part expands to promote efficiency. This is, as shown in detail in FIG. 6, when air is injected into the groove shown in the drawing of the central part of the valve body 110 in contact with the seat member, the shape of the groove is not flat in cross section, but the outer periphery is deeper. , After the injected air is wrapped around the outer periphery of the disk, it is supplied to hold the center of the disk so that it is stable.

시트밸브와 맞닿는 밸브몸체(110) 중앙부 전체면에는 나선형 공기주입홈을 형성하여, 밸브몸체(110) 중앙부가 전체적으로 균일성을 가지고 팽창, 수축하게 한다.A spiral air injection groove is formed on the entire surface of the central part of the valve body 110 in contact with the seat valve, so that the central part of the valve body 110 expands and contracts with uniformity as a whole.

밸브몸체(110)의중앙부와 결합단부(142)가 만나는 직각부위는 밸브몸체(110) 의 손상을 방지하기 위하여 수직부와 수평부로 형성되는 단차를 형성하되, 수직부의 길이가 결합단부의 직각으로 꺽인 끝단부인 끼움돌기(143)길이보다 적게 형성한다. 실시례로서 수직부와 끝단부인 끼움돌기(143) 길이 비율은 0.7~0.8:1로 형성한다. 크게 형성하면 지렛대 원리에 의해 결합단부의 직각으로 꺽인 끝단부인 끼움돌기(143)가 밸브몸체 결합홈에서 벗어날 우려가 커진다.A right-angled portion where the central portion of the valve body 110 and the coupling end 142 meet forms a step formed by a vertical portion and a horizontal portion to prevent damage to the valve body 110, but the length of the vertical portion is at a right angle to the coupling end The bent end of the fitting projection 143 is formed less than the length. As an embodiment, the vertical portion and the end portion of the fitting projection 143 are formed in a length ratio of 0.7 to 0.8:1. If it is formed large, the possibility that the fitting protrusion 143, which is an end bent at a right angle of the coupling end due to the lever principle, will deviate from the valve body coupling groove increases.

단턱부 길이가 짧을수록 좋다. 길이가 길면 튜브의 팽창이 적어져서 기능을 원활하게 수행할 수 없다.The shorter the step length, the better. If the length is long, the expansion of the tube is reduced, and the function cannot be performed smoothly.

밸브와 플랜지를 결합할 시, (140)의 측면에 세레이션홈이 복수개 형성되어, 공기 또는 유체의 배출을 막을 수 있다. 그러므로 (140)은 가스켓 역할도 한다.When the valve and the flange are coupled, a plurality of serration grooves are formed on the side surface of 140 to prevent the discharge of air or fluid. Therefore, 140 also serves as a gasket.

100...팽창 시트형 버터플라이 밸브
110...밸브몸체 112...끼움홈
120...회전축 130...디스크
140...시트부재 141...중앙부
142...결합단부 143...끼움돌기
150...팽창수단 151...유로
152...요홈 153...솔레노이드밸브 유닛100...Expansion seated butterfly valve
110...Valve body 112...Fitting groove
120...axis of rotation 130...disc
140...Seat member 141...Central part
142...Mating end 143...Fitting protrusion
150...inflation means 151...euro
152... groove 153... solenoid valve unit

Claims (3)

밸브몸체(110);
상기 밸브몸체(110)를 수직으로 관통하는 회전축(120);
상기 밸브몸체(110)의 내부에서 상기 회전축(120)을 따라 회전하는 디스크(130);
상기 밸브몸체(110)의 내주면을 따라 밀착결합된 시트부재(140); 및
상기 시트부재(140)에 팽창력을 부여하는 팽창수단(150)을 포함하되,
상기 시트부재(140)는 탄성소재로 이루어지며, 밸브몸체(110)의 내주면에 밀착되는 중앙부(141)와, 상기 밸브몸체(110)의 양측부에 밀착 결합되도록 상기 중앙부(141)의 양측으로부터 연장형성된 결합단부(142)를 구비한 디귿자(ㄷ) 단면을 가진 링 형태로 구성되는 팽창 시트형 버터플라이 밸브에 있어서,
상기 결합단부(142)에는 밸브몸체(110)의 양측면을 향해 끼움돌기(143)가 형성되고, 상기 밸브몸체(110)에는 상기 끼움돌기(143)에 대응되는 끼움홈(112)이 형성되며,
상기 팽창수단(150)은 시트부재(140)의 중앙부(141)와 연통되게 상기 밸브몸체(110)에 형성된 유로(151)와, 상기 유로(151)와 마주하는 시트부재(140)의 중앙부(141)의 외주면을 따라 형성된 요홈(152)과, 상기 유로(151)로 에어를 주입/배출하는 솔레노이드밸브 유닛(Solenoid Valve Unit; 153)으로 구성되어, 상기 솔레노이드밸브 유닛(153)을 통한 압축공기가 유로(151)를 통해 시트부재(140)의 요홈(152)으로 주입되면 상기 요홈(152)의 두께가 주변보다 얇기 때문에 상기 요홈(152)을 중심으로 상기 시트부재(140)의 중앙부(141)가 밸브몸체(110)의 중앙을 향해 부풀어 오르면서 팽창하게 되는 것이되, 상기 끼움돌기(143)와 끼움홈(112)은 시트부재(140)가 팽창할 때 밸브몸체(110)로부터 이탈되지 않도록 밸브몸체(110)의 양측면에 대하여 직교하는 방향으로 형성되며,
상기 시트부재(140)의 중앙부는 디스크 외주면에 맞닿는 부위가 단차가 형성되되 중앙팽창부가 낮고 전후팽창부인 주위가 높게 형성되어 압축공기에 의해 힘이 가해지면서 디스크(130)와 결합되면 안정적으로 중앙부위에 정확히 결합되게 하며, 중심팽창부와 전후팽창부의 재질은 다르게 구성하여 밀착력이 다르며 상기 전후팽창부의 밀착력이 중앙팽창력의 재질보다 연질로 구성하므로 중심팽창부에 의해 파지력이 커지면서도, 전후팽창부에 의해 기밀성도 확보되며,
이때 밸브몸체(110)로부터의 공기 주입유로를 달리 형성하여 먼저 중앙부(141)의 전후팽창부가 먼저 팽창한 후에 중심팽창부가 팽창하게 구성하여 효율성을 도모하여 시트부재(140)와 맞닿는 밸브몸체(110) 중앙부의 홈에 공기가 주입되면, 홈형상의 단면을 평면이 아닌 중심외주연이 더 깊게 파지게 하여, 주입된 공기가 디스크(130) 외주연 주위부터 감싼후 디스크(130) 중심을 잡아주게 공급하여 안정적인 동작이 되게 하며, 공기가 빠져나갈때도 강도가 강한 중심부터 빠져나가므로 마찰손상이 적게 되며,
밸브몸체(110)의 중앙부와 결합단부(142)가 만나는 직각부위는 시트밸브(140)의 손상을 방지하기 위하여 수직부와 수평부로 형성되는 단차를 형성하되, 수직부의 길이가 결합단부(142)에서 직각으로 꺽인 끝단부인 끼움돌기(143) 길이보다 적게 형성하는 것을 특징으로 하는 팽창 시트형 버터플라이 밸브valve body 110;
a rotation shaft 120 vertically penetrating the valve body 110;
a disk 130 rotating along the rotation shaft 120 inside the valve body 110;
a seat member 140 closely coupled along the inner circumferential surface of the valve body 110; and
Including an expansion means 150 for applying an expansion force to the sheet member 140,
The seat member 140 is made of an elastic material, and the central portion 141 is in close contact with the inner circumferential surface of the valve body 110 and from both sides of the central portion 141 so as to be closely coupled to both sides of the valve body 110 . In the expansion seat-type butterfly valve configured in a ring shape having a cross-section of a digit (c) having an extended coupling end 142,
Fitting protrusions 143 are formed on the coupling end 142 toward both sides of the valve body 110, and fitting grooves 112 corresponding to the fitting protrusions 143 are formed in the valve body 110,
The expansion means 150 includes a passage 151 formed in the valve body 110 to communicate with the central portion 141 of the seat member 140, and a central portion ( It consists of a groove 152 formed along the outer circumferential surface of 141 and a solenoid valve unit 153 for injecting/discharging air into the flow path 151, and compressed air through the solenoid valve unit 153. When injected into the groove 152 of the sheet member 140 through the flow passage 151, the thickness of the groove 152 is thinner than the periphery, so the central portion 141 of the sheet member 140 with the groove 152 as the center. ) expands while inflating toward the center of the valve body 110, but the fitting protrusion 143 and the fitting groove 112 are not separated from the valve body 110 when the seat member 140 expands. It is formed in a direction orthogonal to both sides of the valve body 110 so as not to
The central portion of the seat member 140 has a stepped portion in contact with the outer circumferential surface of the disk, but the central expansion portion is low and the periphery of the front/rear expansion portion is formed high. The material of the central expansion part and the front and rear expansion parts are configured differently, so that the adhesive force is different. Confidentiality is also ensured by
At this time, the air injection flow path from the valve body 110 is formed differently so that the front and rear expansion parts of the central part 141 first expand, and then the central expansion part expands to promote efficiency and the valve body 110 in contact with the seat member 140 ) When air is injected into the groove of the central part, the central outer periphery is digged deeper than the plane-shaped cross section of the groove, so that the injected air wraps the disk 130 from around the outer periphery and then holds the disk 130 at the center. It provides stable operation, and even when air escapes from the strong center, friction damage is reduced.
A right-angled portion where the central portion of the valve body 110 and the coupling end 142 meet forms a step formed by a vertical portion and a horizontal portion in order to prevent damage to the seat valve 140, but the length of the vertical portion is equal to the coupling end 142 Expansion seat type butterfly valve, characterized in that it is formed less than the length of the fitting protrusion 143, which is the end bent at a right angle in 삭제delete 삭제delete
KR1020210056983A 2021-05-03 2021-05-03 Expandable seat type butterfly valve KR102340187B1 (en)

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Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2009121512A (en) * 2007-11-12 2009-06-04 Nippon Pneumatic Mfg Co Ltd On-off valve for powder flow passage

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2009121512A (en) * 2007-11-12 2009-06-04 Nippon Pneumatic Mfg Co Ltd On-off valve for powder flow passage

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