KR920007765B1 - Ball-valve - Google Patents

Ball-valve Download PDF

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Publication number
KR920007765B1
KR920007765B1 KR1019870007540A KR870007540A KR920007765B1 KR 920007765 B1 KR920007765 B1 KR 920007765B1 KR 1019870007540 A KR1019870007540 A KR 1019870007540A KR 870007540 A KR870007540 A KR 870007540A KR 920007765 B1 KR920007765 B1 KR 920007765B1
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ring
valve seat
diaphragm
valve
hole
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KR1019870007540A
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Korean (ko)
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KR880012931A (en
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세이찌 기도
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기다무라 밸브 매뉴팩쳐링 컴패니 리미티드
유이찌 기다무라
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Publication of KR880012931A publication Critical patent/KR880012931A/en
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    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16KVALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K5/00Plug valves; Taps or cocks comprising only cut-off apparatus having at least one of the sealing faces shaped as a more or less complete surface of a solid of revolution, the opening and closing movement being predominantly rotary
    • F16K5/06Plug valves; Taps or cocks comprising only cut-off apparatus having at least one of the sealing faces shaped as a more or less complete surface of a solid of revolution, the opening and closing movement being predominantly rotary with plugs having spherical surfaces; Packings therefor

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Taps Or Cocks (AREA)

Abstract

내용 없음.No content.

Description

볼 밸 브Ball valve

제1도는 본 발명의 제1실시예를 보여주는 종단 장면도1 is a longitudinal cross-sectional view showing a first embodiment of the present invention.

제2도는 제1도에 있어서의 원시부의 확대도.2 is an enlarged view of the primitive part in FIG. 1;

제3도는 본 발명의 제2실시예을 보여주는 제2도와 똑같은 도면.FIG. 3 is the same as FIG. 2 showing a second embodiment of the present invention.

* 도면의 주요부분에 대한 부호의 설명* Explanation of symbols for main parts of the drawings

1 : 보디 2 : 밸브실1: body 2: valve chamber

3 : 볼밸브체 4 : 보디캡3: ball valve body 4: body cap

5 : 유로 6 : 받침구멍5: Euro 6: supporting hole

7 : 유지구멍 8 : 걸림구멍7: retaining hole 8: engaging hole

9 : 도피구멍 10 : 지지링9: escape hole 10: support ring

11 : 멈춤링 12 : 나사구멍11: Stop ring 12: Screw hole

13 : 눌름나사 14 : 다이어프램(diaphargm: 격막)13: Press screw 14: Diaphragm (diaphragm)

15 : 아우터링 16 : 백업링15: outer ring 16: backup ring

17 : 밸브시트 18 : 링형상판스프링17: valve seat 18: ring-shaped plate spring

20 : 다이어프램 21 : 백업링20: diaphragm 21: backup ring

22 : 코일스프링22: coil spring

본 발명은, 유체의 종류나 온도가 광범위하게 변화함에도 불구하고 높은 밀봉성질을 유지할 수 있는 볼밸브에 관한 것이다.The present invention relates to a ball valve that can maintain a high sealing property even if the type or temperature of the fluid varies widely.

종래의 대부분의 볼밸브에 있어서는, 밸브시트 또는 그의 리테이너(retainer)와 보디와의 접촉부를 밀봉하기 위해서는, 예컨대, 일본 특허 공개공보 제58-54310호나 일본 실용신안 공개공보 제60-523호에서와 같이, 고무제인 O형 링이 패킹으로 사용되고 있다.In most conventional ball valves, in order to seal the contact portion between the valve seat or its retainer and the body, for example, Japanese Patent Application Laid-Open No. 58-54310 or Japanese Utility Model Publication No. 60-523 Similarly, an O-shaped ring made of rubber is used for the packing.

이와 같은 종래의 것으로는, 심한 고온이나 저온에서는 사용할 수 없으며, 또한 패킹의 재질에 따라서는, 사용유체의 종류가 제약되고, 또한 내화성을 발휘할 수 없다는 문제점이 있다. 이와 같은 문제점을 해결하기 위하여, 고온용으로 아스베스트나 소프트 카본제의 패킹을 사용한 것과 또는 저온용으로, 테프론(상표)제의 U형 링을 사용한 것도 있다.Such a conventional one cannot be used at severe high temperatures or low temperatures, and there is a problem in that the type of the fluid used is restricted and the fire resistance cannot be exhibited depending on the material of the packing. In order to solve such a problem, there may be used an asbestos or soft carbon packing for high temperature or a U-shaped ring made of Teflon (trademark) for low temperature.

그러나, 전자는 매우 강하게 조여 붙일 필요가 있으므로, 밸브시트의 움직임이 나빠지는 동시에, 작동토오크가 증대하고, 또한 저온시에 밀봉성이 낮아진다는 문제점이 남아있다. 그리고, 후자는 저온시에는 U형링이 경화되어 밀봉이 불량하게 되는 동시에, 내화성이 뒤떨어진다는 문제점이 있다.However, since the former needs to be tightened very strongly, there remains a problem that the movement of the valve seat is deteriorated, the operating torque is increased, and the sealing property is low at low temperatures. The latter has a problem that the U-shaped ring is cured at low temperature, resulting in poor sealing and poor fire resistance.

본 발명은, 상기 문제점을 해결하는 것을 목적으로 하는 것이로서, 볼밸브체에 맞닿는 밸브시트를, 아우터링을 통하여 보디내에 설치하는 동시에, 밸브시트의 외측면 내주부와, 아우터링의 외측면 외주부에 금속제 다이어프램(격막)에서의 내주부 및 외주부를, 각각 액밀적(液密的)으로 밀착한 것을 특징으로 하는 것이다. 밸브시트는 보이에 부착된 아우터링에 대하여 접동하고, 또한 접동부는, 격막에 의해서만 밀봉된다.SUMMARY OF THE INVENTION The present invention aims at solving the above problems, wherein a valve seat in contact with a ball valve body is provided in a body via an outer ring, and an outer circumferential portion of an outer surface of the valve seat and an outer circumference of an outer surface of the outer ring are provided. The inner circumferential portion and the outer circumferential portion of the metal diaphragm (diaphragm) are in liquid-tight contact with each other. The valve seat slides against the outer ring attached to the boy, and the sliding part is sealed only by the diaphragm.

[실시예 ]EXAMPLE

제1도 및 제2도는, 본 발명의 제1실시예을 보여준다. 제1도에서 (1)은 보디, (2)는 밸브실, (3)은 밸브실(2)내에 넣어진 트러니온(筒耳)형의 볼밸브체, (4)는 보디캡이며, 이 볼밸브는 전체 구성으로는, 종래형식의 것과 동일하다.1 and 2 show a first embodiment of the present invention. In Fig. 1, reference numeral 1 denotes a body, 2 denotes a valve chamber, 3 denotes a trunnion-type ball valve body inserted into the valve chamber 2, and 4 denotes a body cap. The ball valve is the same as that of the conventional type as a whole structure.

따라서, 본 발명에 직접 관계된 부분이며, 그리고, 제1도에 있어서, 원 A로 표시한 부분의 확대도인 제2도에 따라 설명한다. 보디(1)에 있어서의 밸브실(2)와 유로(5)와의 접속부에는, 밸브실(2)쪽으로부터 바깥쪽으로 향하여, 길이가 큰 받침구멍(6), 그보다 길이가 약간작은 유지구멍(7), 그리고 길이가 작은 걸림구멍(8), 길이가 작은 도피구멍(9)이 순차로 연접된 상태로 설치되어 있다.Therefore, it demonstrates according to FIG. 2 which is a part directly related to this invention, and is an enlarged view of the part shown by the circle A in FIG. In the connection part of the valve chamber 2 and the flow path 5 in the body 1, the support hole 6 which is large in length toward the outer side from the valve chamber 2 side, and the holding hole 7 which is slightly smaller in length is carried out. ), And the small engagement hole 8 and the small escape hole 9 are provided in a state of being sequentially connected.

받침구멍(6)에는, 약간 큰 내경을 갖은 지지링(10)이 끼워 맞춰 지고, 그의 내측면 외주부는 받침구멍(6)의 바람직한 곳에 끼워설치된 제지링(11)에 걸려지고 있다. 지지링(10)에는, 동일 원주상에 늘어선 축선방향으로 다수 나사구멍(12)이 뚫려 있으며, 각 나사구멍(12)에는, 안쪽에서 눌룸나사(13)가 돌려 맞춰 지고 있다. 유지구멍(7)에는, 외측방향으로부터 격막(14) 및 아우터링(15)이 끼워 맞춰 지고 있다. 격막(14)의 외주부는, 걸림구멍(8)과의 단형상 접속부가 맞닿고 있다.A support ring 10 having a slightly larger inner diameter is fitted to the support hole 6, and the outer peripheral portion thereof is caught by a paper ring 11 fitted to a preferred position of the support hole 6. A plurality of screw holes 12 are drilled through the support ring 10 in the axial direction along the same circumference, and the threaded screw 13 is screwed in from the inside of each screw hole 12. The retaining hole 7 is fitted with the diaphragm 14 and the outer ring 15 from the outer direction. The outer circumferential portion of the diaphragm 14 is in contact with the end-shaped connecting portion with the locking hole 8.

아우터링(15)의 내주연에서 안쪽으로 튀어나온 두께가 얇은 통부(15a)는, 지지링(10)의 내주쪽으로 오목하게 들어가 있다. 이 통부(15a)는, 아우터링(15)의 두께, 즉 내, 외측 방향의 길이를 크게 하기 위한 것으로서, 본 발명과는 직접 관계가 없다.The thin cylindrical portion 15a protruding inward from the inner circumference of the outer ring 15 is recessed into the inner circumference of the support ring 10. This cylinder part 15a is for increasing the thickness of the outer ring 15, that is, the length in the inner and outer directions, and is not directly related to the present invention.

격막(14)과 아우터링(15)은, 눌름나사(13)에 의하여 유지구멍(7)의 외측단부에 눌려 접해 있으며, 유로(5)에 대해서 밀봉되어 있다. 밸브시트(17)의 내측면은 볼(3)에 맞닿고, 그와 똑같이 외측면 내주부는, 격막(14)의 내주부에 밀착되어 있다. 이 말착부는, 밸브시트(17)의 외측면 둘레부에 끼워 고정된 백업링(16)으로 보호되어 있다. 걸림구멍(8)내에는, 링형상판스프링(18)이 끼워 넣어지고 있으며, 그의 외측면 외주부는,링형상판스프링(18)의 탄성력과 유체압력에 의한 자체결속력으로 밸브시트(17)를 볼밸브체(3)로 밀착되어 유체를 밀봉한다.The diaphragm 14 and the outer ring 15 are pressed against the outer end part of the holding hole 7 by the press screw 13, and are sealed with respect to the flow path 5. As shown in FIG. The inner surface of the valve seat 17 abuts on the ball 3, and likewise the outer surface inner circumferential portion is in close contact with the inner circumferential portion of the diaphragm 14. This end portion is protected by a backup ring 16 which is fitted to the outer periphery of the valve seat 17. A ring-shaped leaf spring 18 is fitted into the locking hole 8, and the outer peripheral portion of the outer ring portion of the ring-shaped leaf spring 18 is provided with a ball valve for the valve seat 17 with a self-binding force caused by the elastic force and the fluid pressure of the ring-shaped leaf spring 18. It adheres to the sieve 3 and seals a fluid.

제3도는, 본 발명의 상이한 예를 보여주며, 제1실시예와 동일한 부분에는, 그것과 동일한 부호를 붙일 뿐 그의 설명은 생략하고, 상이한 부분에 대해서만 설명한다.3 shows different examples of the present invention, and the same parts as those in the first embodiment are denoted by the same reference numerals, and description thereof will be omitted, and only different parts will be described.

이 격막(20)은, 중간부가 안쪽으로 凸형으로 구부러지고 있지만, 기본적으로는 제1실시예의 것과는 다르지 않으며, 그의 내주부는 밸브시트(17)에 밀착되어 있다. 이 밀착부는, 밸브시트(17)의 외측면 내주부에 끼워져 고정되어 있는 백업링(21)으로 보호되어 있다. 백업링(21)은, 바깥쪽으로 트여져있는 단면이 ㄷ자형상인 것으로서, 이 개구부내에 도시하지 않는 적당한 칸막이를 통해서, 다수의 압축 코일스프링(22)을 끼워 넣은 것이다. 각 코일스프링(22)의 외측단은, 걸림구멍(8)의 외측면에 당접하고 밸브시트(17)을 안쪽으로 누르고 있다.The diaphragm 20 is bent inwardly in the middle portion, but is basically different from that of the first embodiment, and its inner circumferential portion is in close contact with the valve seat 17. This close contact part is protected by the backup ring 21 which is fitted and fixed to the outer peripheral part of the outer side of the valve seat 17. The backup ring 21 has a U-shaped cross section that extends outwardly, and inserts a plurality of compression coil springs 22 through suitable partitions not shown in this opening. The outer end of each coil spring 22 abuts on the outer surface of the engaging hole 8 and presses the valve seat 17 inward.

제2실시예의 것도, 제1실시예의 것과 똑같이 작용하는 것은 두말할 나위가 없으나, 백업링(21)은, 제1실시예의 것과 비교해서, 보다 강력하고 스트로크를 크게 할 수 있다. 밸브시트의 미끄러져 움직이는 면과 보디와는 금속제의 격막 및 아우터링으로, 동 미끄럼움직임면과 유로와는, 격막으로, 각기 밀봉되어 있으므로, 종래의 O형 링과 같은 패킹은 불필요하며, 전술한 문제점은 전부 해결된다.It goes without saying that the second embodiment also works in the same way as in the first embodiment, but the backup ring 21 can be more powerful and larger in stroke than that in the first embodiment. Since the sliding surface of the valve seat and the body are each sealed with a metallic diaphragm and an outer ring, and the sliding surface and the flow path are respectively sealed with a diaphragm, the same packing as a conventional O-shaped ring is unnecessary. The problem is all solved.

Claims (1)

볼밸브체에 맞닿는 밸브시트를, 아우터링을 통해서 보디내에 설치하는 동시에, 밸브시트의 외측면 내주부와, 아우터링의 외측면 외주부에 금속제 격막에서의 내주부 및 외주부를, 각각 대응 밀착시킨 것을 특징으로 하는 볼밸브.The valve seat which abuts the ball valve body is provided in the body through the outer ring, and the inner circumferential portion and the outer circumferential portion of the metal diaphragm are in close contact with the inner circumferential portion of the valve seat and the outer circumferential portion of the outer ring. Ball valve characterized in that.
KR1019870007540A 1987-04-21 1987-07-14 Ball-valve KR920007765B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP62-96187 1987-04-21
JP62096187A JPS63266275A (en) 1987-04-21 1987-04-21 Ball valve

Publications (2)

Publication Number Publication Date
KR880012931A KR880012931A (en) 1988-11-29
KR920007765B1 true KR920007765B1 (en) 1992-09-17

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Application Number Title Priority Date Filing Date
KR1019870007540A KR920007765B1 (en) 1987-04-21 1987-07-14 Ball-valve

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KR (1) KR920007765B1 (en)

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101275444B1 (en) * 2010-10-01 2013-06-17 윤병화 Ball Valve
CN103470805B (en) * 2013-09-24 2016-06-29 宣达实业集团有限公司 A kind of adjustable upper-mounting type ball valve of valve seat
BR112017024263B1 (en) * 2015-05-13 2022-02-15 Kitz Corporation TRUNNION TYPE BALL VALVE, VALVE SEALING STRUCTURE AND VALVE PACKAGING

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JPS63266275A (en) 1988-11-02

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