WO2019177229A1 - Raccord à bride pour tuyaux assemblés sans soudure - Google Patents

Raccord à bride pour tuyaux assemblés sans soudure Download PDF

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Publication number
WO2019177229A1
WO2019177229A1 PCT/KR2018/014852 KR2018014852W WO2019177229A1 WO 2019177229 A1 WO2019177229 A1 WO 2019177229A1 KR 2018014852 W KR2018014852 W KR 2018014852W WO 2019177229 A1 WO2019177229 A1 WO 2019177229A1
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WO
WIPO (PCT)
Prior art keywords
flange
pipe
gasket
snap ring
airtight
Prior art date
Application number
PCT/KR2018/014852
Other languages
English (en)
Korean (ko)
Inventor
최재진
Original Assignee
최재진
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 최재진 filed Critical 최재진
Publication of WO2019177229A1 publication Critical patent/WO2019177229A1/fr

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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
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L23/00—Flanged joints
    • F16L23/02—Flanged joints the flanges being connected by members tensioned axially
    • F16L23/032—Flanged joints the flanges being connected by members tensioned axially characterised by the shape or composition of the flanges
    • 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
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L23/00—Flanged joints
    • F16L23/02—Flanged joints the flanges being connected by members tensioned axially
    • F16L23/024—Flanged joints the flanges being connected by members tensioned axially characterised by how the flanges are joined to, or form an extension of, the pipes
    • 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
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L23/00—Flanged joints
    • F16L23/16—Flanged joints characterised by the sealing means
    • 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
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L23/00—Flanged joints
    • F16L23/16—Flanged joints characterised by the sealing means
    • F16L23/162—Flanged joints characterised by the sealing means the pipe ends abutting each other

Definitions

  • the present invention relates to a non-welded assembly pipe flange connector, more specifically, having a concave-convex on the outer surface, the pipe is fitted with a snap ring in the concave-convex groove;
  • An airtight member is formed in a center portion of the hollow and at an interval between the outer diameter lengths of the pipe, and the airtight member includes a gastight gasket which is in surface contact with the snap ring and the flange;
  • a snap ring having a function of maintaining the airtightness of the fluid between the hermetic gasket and the flange, the part of which is cut open and inserted into the unevenness of the outer surface of the pipe to act as a buffer for the flange and the hermetic gasket;
  • a flange having a hollow portion in the center and a plurality of fastening holes at an outer side thereof, the flange having a bent shape drawn into the inner surface so that the airtight gasket is fitted thereto.
  • the pipe flange In general, the pipe flange must be structurally larger than the outer diameter of the pipe pipe, so most of the pipe flanges are formed as separate components on the outside surface of the pipe pipe, except when the pipe is manufactured by casting. In the bonded state, the joint is welded to form an integral flange at the end of the pipe.
  • a flange is welded to a pipe pipe by simply inserting a tip of a pipe pipe to be fixed by a fixing hole formed in the flange, and then welding the connecting portion, thereby completing a series of flange welding operations.
  • the flange is welded to the end of the pipe pipe and then a plurality of fastening holes for fastening with the flange welded to the end of the other pipe pipe at regular intervals, without considering the position of the fastening hole formed in the flange, In other words, by inserting the welding hole into the end of the pipe pipe by welding the fixing hole formed in the flange so that the position of the fastening hole is not the correct position, the position of the fastening hole formed in the flange when connecting each flange to connect the pipe pipe and the pipe pipe. There is a closed end that one of the two pipes to be connected due to the different problems.
  • the pressure of the water supply pipe is 4Mpa 40.9k
  • the pressure of the gas pipe is generally 0.3k
  • the high pressure is within 2k
  • the gas pipe is non-asbestos, it is -100 ° ⁇ 250 °.
  • Patent Document 1 Korean Patent Publication No. 2000-0006844
  • Patent Document 2 Korean Registered Patent No. 0337230
  • Patent Document 3 Korean Registered Patent No. 1134992
  • Patent Document 4 Korean Patent Publication No. 2012-0049933
  • the present invention has been made to solve the above problems, and an object of the present invention is to provide a non-welded assembly pipe flange connector that can be used for high-pressure piping using a special gasket of a special material and form without welding. .
  • the present invention has a concave-convex on the outer surface, the pipe is fitted with a snap ring in the concave-convex groove;
  • An airtight member is formed in a center portion of the hollow and at an interval between the outer diameter lengths of the pipe, and the airtight member includes a gastight gasket which is in surface contact with the snap ring and the flange;
  • a snap ring having a function of maintaining the airtightness of the fluid between the hermetic gasket and the flange, the part of which is cut open and inserted into the unevenness of the outer surface of the pipe to act as a buffer for the flange and the hermetic gasket;
  • a flange having a bent shape in which a hollow portion and a plurality of fastening holes are formed at an outer side of the central portion thereof, and having a bent shape drawn into the inner surface to fit the hermetic gasket.
  • the hermetic member includes a horizontal surface portion in contact with an outer surface of the pipe; A vertical surface portion contacting one surface of the snap ring; And an inclined surface portion having a structure that gradually increases to correspond to an inclined surface of a bend introduced into the inner surface of the flange.
  • the flange is in the shape of a cylindrical plate, the vertical and horizontal surfaces of the bent shape is in contact with the snap ring, the inclined surface is in contact with the inclined surface portion of the airtight gasket, the bolt is inserted into the fastening hole formed through the pair of flanges,
  • the pair of pipes are interconnected by fastening with nuts.
  • the snap ring has a rectangular cross-sectional shape, the first surface is inserted into contact with the uneven groove of the pipe, the second surface and the third surface is in contact with the vertical and horizontal surface of the flange, the fourth surface is the vertical surface of the airtight gasket Contact with wealth.
  • the hermetic gasket is divided into a space hermetic ring and a gasket, and the space hermetic ring has a horizontal surface portion in contact with an outer surface of the pipe; A pair of vertical surface portions contacting one surface of the snap ring and one surface of the gasket; And an inclined surface portion having a structure that gradually increases to correspond to an inclined surface of a bend introduced into the inner surface of the flange.
  • the present invention made as described above can be coupled to the flange and the pipe without using the welding not only improves workability and safety can be significantly reduced construction costs accordingly.
  • the present invention can increase the sealing force that can be used in the high-pressure pipe to be coupled to the airtight while acting as a buffer to the contact portion using a tapered form, not welding.
  • the present invention includes a tapered shape having a wider inner diameter gradually increasing inclination, and are fully interfitted and fixedly coupled to each other, thereby increasing the frictional force of the tapered inner circumferential surface, thereby preventing it from being released even when an impact comes to the other side.
  • FIG. 1 is a cut view showing the overall connection state of the welded prefabricated pipe flange connector according to an embodiment of the present invention.
  • FIG. 2 is a view illustrating in detail the cut plane of FIG. 1.
  • FIG. 3 is a view showing a flange of the welded prefabricated pipe flange connector according to an embodiment of the present invention.
  • Figure 4 is a view showing the snap ring of the welded prefabricated pipe flange connector according to an embodiment of the present invention.
  • FIG. 5 is a view showing a gas tight gasket of the welded prefabricated pipe flange connector according to an embodiment of the present invention.
  • FIG. 6 is a view showing a detailed coupling form according to an embodiment of the present invention.
  • FIG. 7 is a view illustrating a form in which an airtight gasket, a snap ring, and a flange are coupled according to an embodiment of the present invention.
  • FIG. 8 is a view showing an airtight gasket formed by raising a gastight member at a distance between a hollow portion and a center of an outer diameter length of the pipe in a central portion thereof according to an embodiment of the present invention.
  • FIG. 9 is a view showing a detailed cut surface of the flange according to an embodiment of the present invention.
  • FIG. 10 is a view showing a detailed cut surface of the snap ring according to an embodiment of the present invention.
  • FIG. 11 is a view showing a cutaway view and a plan view of the space hermetic ring as another embodiment of the present invention.
  • FIG. 12 is a cross-sectional view and a plan view of a gasket according to another embodiment of the present invention.
  • FIG. 13 is a cross-sectional view of the gasket and the space sealing ring of FIGS. 11 and 12 replacing the airtight gasket of FIG.
  • FIG. 14 is a view showing a combined state as another embodiment of the present invention.
  • the present invention has a concave-convex on the outer surface, the pipe is fitted with a snap ring in the concave-convex groove;
  • An airtight member is formed in a center portion of the hollow and at an interval between the outer diameter lengths of the pipe, and the airtight member includes a gastight gasket which is in surface contact with the snap ring and the flange;
  • a snap ring having a function of maintaining the airtightness of the fluid between the hermetic gasket and the flange, the part of which is cut open and inserted into the unevenness of the outer surface of the pipe to act as a buffer for the flange and the hermetic gasket;
  • a flange having a bent shape in which a hollow portion and a plurality of fastening holes are formed at an outer side of the central portion thereof, and having a bent shape drawn into the inner surface to fit the hermetic gasket.
  • first and second may be used to describe various components, but the components should not be limited by the terms. The terms are used only for the purpose of distinguishing one component from another.
  • the first component may be referred to as the second component, and similarly, the second component may also be referred to as the first component.
  • FIG. 1 is a cut view showing the overall connection state of the welded prefabricated pipe flange connector according to an embodiment of the present invention
  • Figure 2 is a view showing in detail the cut surface of Figure 1
  • Figure 3 of the present invention 4 is a view illustrating a flange of the welded prefabricated pipe flange connector according to an embodiment
  • FIG. 4 is a view illustrating the snap ring of the welded prefabricated pipe flange connector according to an embodiment of the present invention.
  • the present invention pipe 100; Hermetic gasket 300; Snap ring 250; Flange 200; And the like.
  • the pipe 100 is a pipe having a concave-convex on the outer surface, the snap ring 250 is fitted into the concave-convex groove.
  • the airtight gasket 300 is formed in the center portion at the interval of the outer diameter length of the pipe on the outside and the hollow, it is a structure that can minimize the gap between the pipe.
  • the airtight gasket 300 is formed by circumferentially surrounding the airtight member 302, and the airtight member is a gasket which is in surface contact with the snap ring 250 and the flange 200.
  • the EPDM gasket used as the airtight gasket 300 is a gasket in which a fluororesin film is press-heat-molded and integrally adhered integrally with EPDM rubber as a center material, or it is equipped with both rubber elasticity, PTFE heat resistance and chemical resistance, and sealing. It is preferable to use a gasket etc. which are excellent in sealing.
  • asbestos, aluminum metal, hard metal, nonferrous metal, plastic, rubber, or the like may be used.
  • the present invention can be used for all piping, including gas or oil piping, if the space sealing or gas tight gasket material is different.
  • the snap ring 250 is formed in the shape of a "o" ring, but the cross-sectional shape is rectangular, and has a function of maintaining the airtightness of the fluid between the airtight gasket 300 and the flange 200, a part is cut open It is a ring that is fitted to the unevenness of the outer surface of the pipe 100 serves as a buffer of the flange and the airtight gasket 300.
  • the flange 200 has a hollow and a plurality of fastening holes 210 at the center thereof, and is a member having a bent shape drawn into the inner surface to fit the airtight gasket 300.
  • the flange 200 is in contact with the portion to act as a shock absorber, it can be coupled to the high airtightness.
  • the present invention is easy to fit the taper shape, etc. centering around the pipe 100 without welding. The work is convenient.
  • Figure 5 is a view showing a gas tight gasket of the welded prefabricated pipe flange connector according to an embodiment of the present invention
  • Figure 6 is a view showing a detailed coupling form according to an embodiment of the present invention
  • Figure 7 of the present invention 2 is a view illustrating a form in which a gasket, a snap ring, and a flange are coupled according to an embodiment.
  • the airtight gasket 300 is formed to be circumferentially formed so that the airtight member 302 is raised, and the raised shape is preferably a tapered shape at one side.
  • both sides are not tapered, so the other side may be closely attached to the flat surface of the pipe 100, and one side may be tightly coupled to the tapered surface of the flange 200.
  • the flange 200 is coupled to an arbitrary position of the pipe 100, and then a snap ring 250 having a “o” ring shape is connected to the uneven surface of the pipe 100. Fix the flange 200 by combining.
  • the flange 200 and the airtight gasket 300 are coupled to each other with the snap ring 250 interposed therebetween, so that the surface contact portion and the tapered contact portion may be properly harmonized and disassembled. Can reproduce difficult connection structures.
  • FIG. 8 is a view showing an airtight gasket formed by raising an airtight member at an interval of the outer diameter length of the pipe on the outside and the hollow in the center portion, according to an embodiment of the present invention
  • Figure 9 is an embodiment of the present invention
  • Figure 10 is a view showing a detailed cut surface of the flange according to
  • Figure 10 is a view showing a detailed cut surface of the snap ring according to an embodiment of the present invention.
  • the airtight member 302 includes a horizontal surface portion 302-3 in contact with an outer surface of the pipe 100; A vertical surface portion 302-2 contacting one surface of the snap ring 250; And an inclined surface portion 302-1 having a structure that gradually increases to correspond to an inclined surface of a bend drawn into the inner surface of the flange 200.
  • the airtight member 302 has a tapered shape in which the portion toward the outer flange 200 gradually decreases in inclination, and thus, the airtight member 302 is easy to be assembled and difficult to be disassembled and freed from vibration and seismic problems.
  • the airtight member 302 to effectively suppress the left and right shake in a tapered shape to solve the problems such as cracked or popped shape of the entire non-welded assembly pipe flange connector by earthquake or vibration to enhance the seismic performance.
  • the close contact between the tapered shape of the airtight member 302 and the outer flange 200 has the same durability as welded, and further improves workability and safety.
  • the flange 200 has a cylindrical plate shape, the vertical surface 200-5 and the horizontal surface 200-1 of the bent shape contact the snap ring 250, and the inclined surface 200-3. ) Is in contact with the inclined surface portion (302-1) of the airtight gasket 300, the bolt is inserted into the fastening hole formed through the pair of flanges, and the pair of pipes are interconnected by fastening with a nut. .
  • the snap ring 250 has a rectangular cross-sectional shape, and the first surface 250-1 is inserted into and contacts the uneven groove of the pipe 100, and the second surface 250-2 is in contact with each other. ) And the third surface contact the vertical surface 200-5 and the horizontal surface 200-1 of the flange 200, and the fourth surface contacts the vertical surface portion 302-2 of the hermetic gasket 300.
  • another embodiment of the present invention includes a pipe 100 of FIG. 1; Snap ring 250; Flange 200; the same configuration, it is possible to facilitate the manufacturing process and production by dividing the airtight gasket 300 into a space hermetic ring (302 ') and the gasket (304').
  • the space hermetic ring (302 ') is a horizontal surface portion in contact with the outer surface of the pipe 100; A vertical surface portion contacting one surface of the snap ring 250; And an inclined surface portion having a structure that gradually increases so as to correspond to an inclined surface of a bend introduced into the inner surface of the flange 200.
  • the gasket 304 ′ is connected to a pair of snap rings 250, a flange 200, and a space hermetic ring 302 ′ connecting the pair of pipes 100 to prevent gas from flowing into a specific space. With one gasket, leakage of gas or the like generated in both directions can be prevented.
  • the gasket 304 ′ may be used as a material of asbestos, aluminum metal, hard metal, nonferrous metal, plastic, rubber, or the like in a pipe in a gas facility or an oil facility.
  • the present invention can be used for all piping, including gas or oil piping, if the space sealing or gas tight gasket material is different.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Flanged Joints, Insulating Joints, And Other Joints (AREA)

Abstract

La présente invention concerne une installation d'alimentation en eau et un raccord à bride pour des tuyaux assemblés sans soudure et, plus particulièrement, un raccord à bride pour des tuyaux d'eau du robinet assemblés sans soudure, le raccord à bride comprenant : un tuyau présentant une partie irrégulière formée au niveau de sa surface externe, un anneau à encliquetage étant ajusté dans une rainure dans la partie irrégulière ; un joint étanche à l'air comportant un espace creux formé dans sa partie centrale et un élément étanche à l'air en saillie formé du côté externe de l'espace creux et doté d'un espacement correspondant au diamètre externe du tuyau, l'élément étanche à l'air effectuant un contact de surface avec l'anneau à encliquetage et une bride ; l'anneau à encliquetage, servant à maintenir un fluide en état étanche à l'air entre le joint étanche à l'air et la bride, est partiellement découpé et peut ainsi être élargi, et il est ajusté dans la partie irrégulière au niveau de la surface externe du tuyau, de façon à servir de coussinet entre la bride et le joint étanche à l'air ; et la bride, présentant un espace creux formé dans sa partie centrale et une pluralité de trous de fixation formés sur le côté externe de l'espace creux, comporte une partie à forme incurvée en retrait par rapport à sa surface interne, de façon à permettre l'ajustage du joint étanche à l'air dans la partie à forme incurvée.
PCT/KR2018/014852 2018-03-12 2018-11-28 Raccord à bride pour tuyaux assemblés sans soudure WO2019177229A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
KR1020180028403A KR101915492B1 (ko) 2018-03-12 2018-03-12 무용접 조립식 배관 플랜지 연결구
KR10-2018-0028403 2018-03-12

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WO2019177229A1 true WO2019177229A1 (fr) 2019-09-19

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PCT/KR2018/014852 WO2019177229A1 (fr) 2018-03-12 2018-11-28 Raccord à bride pour tuyaux assemblés sans soudure

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WO (1) WO2019177229A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115142996A (zh) * 2022-07-25 2022-10-04 中国人民解放军陆军军事交通学院 一种柴油机增压器中置空滤进气管顶置的装配结构

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR102196531B1 (ko) * 2018-12-14 2020-12-29 조동국 설치의 호환성과 편의성 및 우수한 기밀성과 내진성능을 겸비하는 밸브실용 이음유닛
KR102195335B1 (ko) 2020-04-03 2020-12-24 김굉선 배관 연결용 조인트
KR102190003B1 (ko) 2020-04-03 2020-12-11 심인철 배관 연결용 조인트

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KR20030078507A (ko) * 2002-03-30 2003-10-08 이도연 프레스 성형으로 가공한 중,대형 배관이음용 커플링
KR200407864Y1 (ko) * 2005-11-18 2006-02-06 주식회사 대륙금속 무용접 플랜지 관연결 조인트
KR20090084518A (ko) * 2008-02-01 2009-08-05 주식회사 아이티웰 파이프와 플랜지의 연결구조
KR20100046104A (ko) * 2007-08-27 2010-05-06 노라 엔지니어링 가부시키가이샤 루즈 플랜지식 관 이음매
KR20110110501A (ko) * 2010-04-01 2011-10-07 임상묵 강관 특수 이음장치

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KR200390448Y1 (ko) 2005-04-20 2005-07-22 정인학 파이프 연결 장치

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KR20030078507A (ko) * 2002-03-30 2003-10-08 이도연 프레스 성형으로 가공한 중,대형 배관이음용 커플링
KR200407864Y1 (ko) * 2005-11-18 2006-02-06 주식회사 대륙금속 무용접 플랜지 관연결 조인트
KR20100046104A (ko) * 2007-08-27 2010-05-06 노라 엔지니어링 가부시키가이샤 루즈 플랜지식 관 이음매
KR20090084518A (ko) * 2008-02-01 2009-08-05 주식회사 아이티웰 파이프와 플랜지의 연결구조
KR20110110501A (ko) * 2010-04-01 2011-10-07 임상묵 강관 특수 이음장치

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115142996A (zh) * 2022-07-25 2022-10-04 中国人民解放军陆军军事交通学院 一种柴油机增压器中置空滤进气管顶置的装配结构
CN115142996B (zh) * 2022-07-25 2023-12-22 中国人民解放军海军工程大学 一种柴油机增压器中置空滤进气管顶置的装配结构

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