WO2009043248A1 - Joint étanche composite ondulé auto-obturant - Google Patents

Joint étanche composite ondulé auto-obturant Download PDF

Info

Publication number
WO2009043248A1
WO2009043248A1 PCT/CN2008/072131 CN2008072131W WO2009043248A1 WO 2009043248 A1 WO2009043248 A1 WO 2009043248A1 CN 2008072131 W CN2008072131 W CN 2008072131W WO 2009043248 A1 WO2009043248 A1 WO 2009043248A1
Authority
WO
WIPO (PCT)
Prior art keywords
metal corrugated
corrugated plate
metal
self
tightening
Prior art date
Application number
PCT/CN2008/072131
Other languages
English (en)
Chinese (zh)
Inventor
Zhigang Ma
Original Assignee
Zhigang Ma
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 Zhigang Ma filed Critical Zhigang Ma
Publication of WO2009043248A1 publication Critical patent/WO2009043248A1/fr

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Classifications

    • 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
    • F16J—PISTONS; CYLINDERS; SEALINGS
    • F16J15/00—Sealings
    • F16J15/02—Sealings between relatively-stationary surfaces
    • F16J15/06—Sealings between relatively-stationary surfaces with solid packing compressed between sealing surfaces
    • F16J15/10—Sealings between relatively-stationary surfaces with solid packing compressed between sealing surfaces with non-metallic packing
    • F16J15/12—Sealings between relatively-stationary surfaces with solid packing compressed between sealing surfaces with non-metallic packing with metal reinforcement or covering
    • F16J15/121—Sealings between relatively-stationary surfaces with solid packing compressed between sealing surfaces with non-metallic packing with metal reinforcement or covering with metal reinforcement
    • F16J15/122—Sealings between relatively-stationary surfaces with solid packing compressed between sealing surfaces with non-metallic packing with metal reinforcement or covering with metal reinforcement generally parallel to the surfaces

Definitions

  • the present invention relates to a gasket, and more particularly to a composite gasket.
  • the sealing gasket is mostly made of non-metallic materials such as asbestos and rubber, or is made of metal and non-metal materials, and the latter is a composite gasket, because the existing manufacturing material or sealing structure is stressed. Poor ability, after a period of use, under the combined pressure and medium temperature, the gasket is easy to age, fatigue or slack, the sealing performance is deteriorated or even the sealing performance is lost, and the bending deformation is affected during installation, which affects the sealing. effect.
  • there are some gaskets made of metal materials because the compression and resilience of metal materials is limited, and the ability to adapt to temperature fluctuations and alternating loads is poor, resulting in anti-aging and fatigue resistance of metal gaskets. ideal.
  • the technical solution of the present invention provides a waveform self-tightening composite gasket including an annular first metal corrugated plate and at least one annular second metal corrugated plate, the first metal.
  • the corrugated plate and the second metal corrugated plate are laminated to form an annular conforming body, and an outer ring edge of the first metal corrugated plate and an outer ring edge of the second metal corrugated plate are welded and fixed, the first metal corrugated plate
  • the inner ring edge and the inner ring edge of the second metal corrugated plate are welded and fixed, and at least one medium inlet passage is opened at a position of the inner ring edge of the bonding body or near the inner ring edge, and the bonding body has a non-working state and Working state, when the bonding body is in a non-working state, the first metal corrugated board and the second metal corrugated board are attached to each other; when the bonding body is in an operating state, the first metal corrugated board and the There is a
  • the wave self-tightening composite gasket is installed between the flange of the pipe or equipment, and the lower pre-tightening sealing pressure can be selected.
  • the medium enters the passage, pipe or equipment.
  • the medium inside enters the gap between the first metal corrugated plate and the second metal corrugated plate, and the sealing gasket uses the medium to transmit pressure to compensate the external pressure on the sealing gasket to achieve self-tightening.
  • the crest portion of the first metal corrugated plate and the crest portion of the second metal corrugated plate are aligned, the trough portion of the first metal corrugated plate and the The trough portions on the second metal corrugated sheet are aligned and laminated.
  • the plurality of peak portions and the trough portions of the first metal corrugated plate or the second metal corrugated plate are concentrically formed.
  • a coating layer is respectively disposed on the upper surface and the lower surface of the bonding body.
  • the material of the coating layer is a composite of one or more of graphite, fiber, polytetrafluoroethylene, and resin.
  • the coating protrudes from the peak portion of the surface of the bonded body by 0.1 to 10 mm.
  • the material of the first metal corrugated plate or the second metal corrugated plate is one or more of carbon steel, stainless steel, copper, aluminum, monel, nickel, titanium. mixture.
  • the thickness of the first metal corrugated sheet or metal corrugated sheet is 0. 1 - 10 mm. Since the present invention adopts the above technical solution, the advantage is that the gasket has better behavior against the alternating load, the temperature fluctuation caused by the seal, and the sealing failure due to the lack of pressure.
  • Figure 1 is a front view of the present invention
  • Figure 2 is a cross-sectional view taken along line A-A of Figure 1 (the mating body is in a non-operating state);
  • Figure 3 is a cross-sectional view of the present invention in which the conforming body is in operation and the medium inlet passage is opened on the edge of the fitting body ring;
  • Figure 4 is a cross-sectional view showing the bonding body in an active state in the present invention and the medium inlet passage is opened at an edge near the edge of the fitting body;
  • the main body of the gasket is an annular first metal corrugated plate 1, and a second annular metal corrugated plate.
  • the plurality of peak portions and the trough portions on the first metal corrugated board 1 are all formed in a circular shape and distributed in a concentric manner, and the second metal corrugated board 2 may have one piece as shown in each figure, or There are a plurality of pieces, and a plurality of peak portions and trough portions on the second metal corrugated plate 2 also form a circular ring shape and are concentrically distributed.
  • the first metal corrugated plate 1 and the second metal corrugated plate 2 are made of carbon steel, stainless steel, copper, Thickness of the aluminum, Monel (M 0 nel), British harsh nickel (In CO ne l), titanium or a mixture of several of said first corrugated metal sheet 1, the second corrugated sheet metal 2 0 1 - 10 mm.
  • the first metal corrugated board 1 and the second metal corrugated board 2 are laminated to form an annular conforming body 3, and after stacking, the peak portion on the first metal corrugated board 1 and the peak portion on the second metal corrugated board 2 Consistently stacked, the trough portions on the first metal corrugated board 1 and the trough portions on the second metal corrugated board 2 are also laminated, the outer ring edge of the first metal corrugated board 1 and the outer ring of the second metal corrugated board 2
  • the inner ring edge of the first metal corrugated plate 1 and the inner ring edge of the second metal corrugated plate 2 are also welded and fixed, and at least the inner ring edge of the abutting body 3 or the inner ring edge is opened at least.
  • a medium enters channel 5.
  • the bonding body 3 has a non-working state and an operating state.
  • the bonding body 3 When the bonding body 3 is in a non-working state, the first metal corrugated board 1 and the second metal corrugated board 2 are in a state of being adhered to each other, as shown in FIG. 2;
  • a gap 4 is formed between the first metal corrugated board 1 and the second metal corrugated board 2, and the gap 4 communicates with the medium entering passage 5, as shown in FIG. 3 or FIG.
  • a coating layer 6 is respectively disposed on the upper surface and the lower surface of the bonding body 3.
  • the composite sealing gasket is between the flange of the butt pipe or the device, and the coating layer 6 is directly connected to the flange.
  • the contact member first serves as a sealing function, and the coating layer 6 can be made of a composite of one or more of graphite, fiber, polytetrafluoroethylene, and resin, and the formed gasket is 1—10 ⁇
  • the coating layer 6 should also protrude from the peak portion of the surface of the bonded body 3 0. 1 - 10 ⁇ meters.
  • the medium inlet passage 5 is opened on the inner ring edge of the conforming body 3, and is outside the area covered by the coating 6, when the gasket is installed between the flanges.
  • a lower pre-tightening seal pressure can be selected, and the medium in the pipe or equipment passes through the medium inlet passage 5 into the gap between the first metal corrugated plate 1 and the second metal corrugated plate 2 when the gasket is in the working state.
  • the gasket compensates the working seal specific pressure on the sealing gasket by the medium pressure transmission when the medium pressure and temperature fluctuate, so as to increase the specific pressure of the bonding body 3 and the sealed surface, thereby achieving self-tightening.
  • the sealing gasket adopts a corrugated metal plate, and when an alternating load occurs due to a cyclic change of the medium pressure and temperature, the load can be well distributed throughout the corrugated surface, thereby avoiding the concentration of the gasket edge.
  • the force is increased, and the overall fatigue resistance of the gasket is improved. Therefore, the gasket has better resistance to alternating load, and the sealing caused by temperature fluctuation causes the seal to fail. For the performance.
  • the medium inlet passage 5 is opened at a position close to the inner ring edge of the conforming body 3, and is outside the area covered by the coating 6, and its working principle is the same as above.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Gasket Seals (AREA)

Abstract

L'invention porte sur un joint étanche composite ondulé auto-obturant comprenant une première plaque annulaire ondulée et au moins une deuxième plaque annulaire ondulée (2). La première plaque (1) et la deuxième plaque (2), qui s'unissent pour former une partie (3) du joint se raccordent l'une à l'autre par des soudures reliant leurs bords périphériques extérieur et intérieur. Au moins un passage (5) d'introduction du milieu est pratiqué dans ou au voisinage du bord périphérique intérieur de la partie (3) du joint. Quand la partie (3) du joint ne fonctionne pas, la première plaque (1) et la deuxième plaque (2) se touchent, et quand la partie (3) du joint fonctionne, un espace (4) communiquant avec le passage (5) se forme entre la première plaque (1) et la deuxième plaque (2) où peut pénétrer le milieu via le passage (5). Le joint étanche de l'invention permet d'obtenir une compensation de la pression d'étanchéité due à la pression transmise par le milieu, d'où l'effet d'auto-obturation.
PCT/CN2008/072131 2007-09-30 2008-08-25 Joint étanche composite ondulé auto-obturant WO2009043248A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CNA2007101341588A CN101144541A (zh) 2007-09-30 2007-09-30 波形自紧式复合密封垫片
CN200710134158.8 2007-09-30

Publications (1)

Publication Number Publication Date
WO2009043248A1 true WO2009043248A1 (fr) 2009-04-09

Family

ID=39207200

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2008/072131 WO2009043248A1 (fr) 2007-09-30 2008-08-25 Joint étanche composite ondulé auto-obturant

Country Status (2)

Country Link
CN (2) CN101144541A (fr)
WO (1) WO2009043248A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8876051B2 (en) 2010-02-04 2014-11-04 Airbus Operations Limited Bridging seal
CN112032232A (zh) * 2020-09-30 2020-12-04 福州大学 金属波纹复合夹芯缓冲构件及其安装方法

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101144541A (zh) * 2007-09-30 2008-03-19 马志刚 波形自紧式复合密封垫片
CN102927272B (zh) * 2012-10-23 2016-12-21 安徽誉丰汽车技术有限责任公司 一种汽车用密封装置
CN105042234A (zh) * 2015-04-20 2015-11-11 中国石油大学(华东) Mmc型垫片及法兰连接设计方法
CN107174857A (zh) * 2017-05-03 2017-09-19 南通华兴石油仪器有限公司 一种用于浆料搅拌设备的过滤箱
WO2019109282A1 (fr) * 2017-12-07 2019-06-13 徐文胜 Procédé de traitement d'un joint résistant à la température de polytétrafluoroéthylène doté d'un revêtement en acier, et produit
CN110303246B (zh) * 2019-07-29 2021-10-29 武汉华工激光工程有限责任公司 一种密封焊接方法和双极板

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6883805B2 (en) * 2003-04-07 2005-04-26 Uchiyama Manufacturing Corp. Multifunctional gasket
CN101000096A (zh) * 2006-01-09 2007-07-18 励行根 一种波形复合密封垫片及其制造方法
CN101033800A (zh) * 2007-04-11 2007-09-12 马志刚 层叠开口密封垫片及其制造方法
CN101033799A (zh) * 2007-04-13 2007-09-12 马志刚 自增强柔性密封垫片及其制造方法
CN101042192A (zh) * 2007-04-16 2007-09-26 马志刚 自增强柔性环管密封垫片及其制造方法
CN101144541A (zh) * 2007-09-30 2008-03-19 马志刚 波形自紧式复合密封垫片

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6883805B2 (en) * 2003-04-07 2005-04-26 Uchiyama Manufacturing Corp. Multifunctional gasket
CN101000096A (zh) * 2006-01-09 2007-07-18 励行根 一种波形复合密封垫片及其制造方法
CN101033800A (zh) * 2007-04-11 2007-09-12 马志刚 层叠开口密封垫片及其制造方法
CN101033799A (zh) * 2007-04-13 2007-09-12 马志刚 自增强柔性密封垫片及其制造方法
CN101042192A (zh) * 2007-04-16 2007-09-26 马志刚 自增强柔性环管密封垫片及其制造方法
CN101144541A (zh) * 2007-09-30 2008-03-19 马志刚 波形自紧式复合密封垫片

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8876051B2 (en) 2010-02-04 2014-11-04 Airbus Operations Limited Bridging seal
CN112032232A (zh) * 2020-09-30 2020-12-04 福州大学 金属波纹复合夹芯缓冲构件及其安装方法
CN112032232B (zh) * 2020-09-30 2024-06-04 福州大学 金属波纹复合夹芯缓冲构件及其安装方法

Also Published As

Publication number Publication date
CN101387345A (zh) 2009-03-18
CN101144541A (zh) 2008-03-19

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