WO2003106869A2 - Joint d'etancheite en graphite souple et a gaine metallique pour haute temperature - Google Patents
Joint d'etancheite en graphite souple et a gaine metallique pour haute temperature Download PDFInfo
- Publication number
- WO2003106869A2 WO2003106869A2 PCT/FR2003/001740 FR0301740W WO03106869A2 WO 2003106869 A2 WO2003106869 A2 WO 2003106869A2 FR 0301740 W FR0301740 W FR 0301740W WO 03106869 A2 WO03106869 A2 WO 03106869A2
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- sheath
- seal
- graphite
- flexible
- seal according
- Prior art date
Links
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 title claims abstract description 36
- 229910002804 graphite Inorganic materials 0.000 title claims abstract description 33
- 239000010439 graphite Substances 0.000 title claims abstract description 33
- 229910052751 metal Inorganic materials 0.000 title claims abstract description 21
- 239000002184 metal Substances 0.000 title claims abstract description 21
- 238000007789 sealing Methods 0.000 title description 3
- 230000007935 neutral effect Effects 0.000 claims abstract description 5
- 239000000463 material Substances 0.000 description 7
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 4
- 239000007789 gas Substances 0.000 description 4
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 3
- 230000007797 corrosion Effects 0.000 description 3
- 238000005260 corrosion Methods 0.000 description 3
- 239000001301 oxygen Substances 0.000 description 3
- 229910052760 oxygen Inorganic materials 0.000 description 3
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 description 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 239000010425 asbestos Substances 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 239000002131 composite material Substances 0.000 description 2
- 229910052759 nickel Inorganic materials 0.000 description 2
- 229910052895 riebeckite Inorganic materials 0.000 description 2
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 description 1
- 229910000599 Cr alloy Inorganic materials 0.000 description 1
- 229910000640 Fe alloy Inorganic materials 0.000 description 1
- WGLPBDUCMAPZCE-UHFFFAOYSA-N Trioxochromium Chemical compound O=[Cr](=O)=O WGLPBDUCMAPZCE-UHFFFAOYSA-N 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 1
- 229910052786 argon Inorganic materials 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 239000011651 chromium Substances 0.000 description 1
- 229910000423 chromium oxide Inorganic materials 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000001143 conditioned effect Effects 0.000 description 1
- 238000004320 controlled atmosphere Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000000280 densification Methods 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 238000013508 migration Methods 0.000 description 1
- 230000005012 migration Effects 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
- 230000000704 physical effect Effects 0.000 description 1
- 239000003566 sealing material Substances 0.000 description 1
- 238000010008 shearing Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
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
- F16J15/128—Sealings between relatively-stationary surfaces with solid packing compressed between sealing surfaces with non-metallic packing with metal reinforcement or covering with metal covering
Definitions
- the invention relates to the field of static sealing, in particular for pipe flanges capable of conveying fluids at very high temperatures.
- Figure 1 shows a first type of joint, called "striated", or a metallic core IB, is surrounded by two thin layers of graphite 1A.
- the metallic core IB has grooves on its surface so that the graphite layers 1A can penetrate slightly into the metallic core IB, in order to result in the tightening of the joint.
- Figure 2 shows a second type of joint, called “corrugated”, where a central layer of metal 2B of corrugated shape is covered on its two surfaces with a layer of graphite 2A also conforming to the corrugated shape.
- Figure 3 shows a third type of joint, called a “spiral”, where a graphite spiral 3A is wound together with a metal spiral 3B.
- Figure 4 shows a fourth type of seal, called “metalloplastic", where the central core 4A is made of graphite and is surrounded by a metal casing 4B, in two parts.
- FIG. 5 a fifth type of joint is shown in FIG. 5. It is an “all graphite” joint, or a central core 5A of square or rectangular section is surrounded on each side by two solid metal rings 5B.
- the main object of the invention is a flexible graphite gasket with a metal shell for high temperature, comprising, inter alia, a flexible graphite core and a metallic envelope surrounding the flexible core.
- this assembly consisting of the flexible core surrounded by the metallic envelope is itself enclosed in a hermetically closed sheath, so that this enclosed assembly can work under a controlled atmosphere.
- an inert atmosphere that is to say without oxygen
- the operating temperature of graphite can rise to 2000 ° C., without altering its physical properties.
- the metal casing is advantageously made in two cups which do not completely surround the flexible core.
- a first embodiment of the invention provides for a partial vacuum to prevail inside the sheath.
- a neutral gas is placed inside the sheath.
- flexible graphite is used to constitute the flexible core.
- the sheath is metallic.
- the sheath can be, in a first embodiment, in two parts welded in a median plane of the joint.
- the sheath can be made, always in two parts, the welds being on opposite edges, when the section of the sheath is quadrilateral.
- a third embodiment of the sheath provides that it is in four parts, two of which are lateral, an upper and a lower, all welded together.
- the sheath preferably has a square section or a rectangular section.
- the seal according to the invention is therefore a composite seal associating a flexible core 10, internal, consisting of expanded graphite or of a substantially equivalent material. It is specified that the expanded graphite, in order to keep its elastic properties beyond 550 ° C., must be maintained under an oxygen-free atmosphere. This is why, according to the invention, a hermetically sealed sheath 15 is produced, so as to prevent any migration of corrosive gas towards graphite. It is eventually possible to be able to extract the oxygen if necessary and to replace it with a neutral gas, such as argon, for example.
- the sheath 15 constitutes a metal box which opposes any transfer of gas from the outside of this box thus formed towards its inside, and vice versa.
- the flexible core 10 of expanded graphite is conditioned between the two metal cups 12 constituting the metal envelope, the volume of this core being thus delimited to avoid any extrusion of the graphite, during its densification during compression, during the phase of Tightening. It will be noted that a space 13 remains between these two cups 12 before tightening and that it is reduced to a minimum at the end of tightening.
- the cups 12 have, on their surfaces which are opposite the part of the sheath 15 which must receive the parts between which the seal is to be established, several projections 14. This in fact makes it possible to ensure a concentration of the force at the level of the contact between the seal and the seal surface, that is to say the part to be sealed. This contributes to maintaining the seal.
- projections 14 are shown in the form of rounded bosses, but may also be of triangular or rectangular section. Their height is dimensioned so as to avoid shearing of the sheath 15, during the operation of the seal at high temperature.
- the metallic envelope constituted by the two cups 12 is much more rigid than the sheath 15 which is also metallic.
- the flexible graphite of the core 10 decreases in volume by densifying and therefore exerts an increasing overall reaction. on the envelope 15. This overall reaction is concentrated on the projections 14 formed on the outside of the two cups 12.
- FIG. 7 shows a second embodiment of the seal according to the invention, this being a little more complete.
- the sheath 25 is made up of two distinct parts, an upper part 26S and a lower part 261. These two parts are welded in a full middle by their respective ends 27 which project towards the exterior, thereby creating flexible lips, making it easier to weld and also make the sheath 25 more flexible when the joint is compressed.
- the flexible core 10 and the cups 12 constituting the metal envelope are identical to the previous ones described in FIG. 6.
- the third embodiment shown in Figure 8 shows that the sheath 35 can be composed of four parts which are an upper part 36S, a lower part 361 and two side parts 36L. These four parts are welded two by two in two planes which are those of the internal walls of the upper 36S and lower 361 parts.
- the flexible core 10 and the cups 12 can have the same shapes as for the previous embodiments.
- the fourth embodiment shown in Figure 9 has a flexible core 40 which is no longer square, but is rather rectangular. This has the consequence that the cups 42 are slightly wider and have a larger number of protrusions 44.
- the sheath 45 is in two parts, an upper 46S and a lower 461 each having a vertical side 46L. Their welds are therefore provided on opposite edges of the rectangular shape of the assembly.
- the materials used to constitute the metal sheath and the cups are therefore chosen as a function of their temperature resistance and their mechanical strength when hot.
- the sheath must preferably be made of an alloy, nickel-based or iron-based, because of the suitability of these materials to form a layer of protection against corrosion at high temperature which may consist of an alumina oxide or a chromium oxide.
- the material constituting the cups is of a less limited choice, since it is protected from corrosion by the sheath. Commonly used nickel / chromium / iron alloys can be used very well. Other materials, of the ceramic type, could also be used for reuse or lifespan.
- a graphite section of 5 x 5 mm associated with cups of 0.5 mm thickness.
- the thickness of the sheath must be deliberately limited to 0.10 or 0.20 mm and, in this case, the height of the projections is respectively 0.05 or 0.15 mm.
- the graphite core can keep its effective properties under high temperature, once it is enclosed in the sheath which surrounds it.
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Gasket Seals (AREA)
- Sealing Devices (AREA)
Abstract
Description
Claims
Priority Applications (7)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP03760006A EP1511953B1 (fr) | 2002-06-13 | 2003-06-11 | Joint d'etancheite en graphite souple et a gaine metallique pour haute temperature |
DE60336310T DE60336310D1 (en) | 2002-06-13 | 2003-06-11 | Flexible graphitdichtung mit metallmantel für hohe temperaturen |
AU2003250356A AU2003250356A1 (en) | 2002-06-13 | 2003-06-11 | Flexible graphite sealing joint with metal jacket for high temperature |
CA2488902A CA2488902C (fr) | 2002-06-13 | 2003-06-11 | Joint d'etancheite en graphite souple et a gaine metallique pour haute temperature |
US10/516,299 US7255353B2 (en) | 2002-06-13 | 2003-06-11 | Flexible graphite sealing joint with metal jacket for high temperature |
AT03760006T ATE501384T1 (de) | 2002-06-13 | 2003-06-11 | Flexible graphitdichtung mit metallmantel für hohe temperaturen |
JP2004513652A JP4391933B2 (ja) | 2002-06-13 | 2003-06-11 | 高温用に金属製ジャケットを有したフレキシブルなグラファイトシールジョイント |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR0207260A FR2840968B1 (fr) | 2002-06-13 | 2002-06-13 | Joint d'etancheite en graphite souple et a gaine matallique pour haute temperature |
FR02/07260 | 2002-06-13 |
Publications (2)
Publication Number | Publication Date |
---|---|
WO2003106869A2 true WO2003106869A2 (fr) | 2003-12-24 |
WO2003106869A3 WO2003106869A3 (fr) | 2004-04-01 |
Family
ID=29595189
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/FR2003/001740 WO2003106869A2 (fr) | 2002-06-13 | 2003-06-11 | Joint d'etancheite en graphite souple et a gaine metallique pour haute temperature |
Country Status (12)
Country | Link |
---|---|
US (1) | US7255353B2 (fr) |
EP (1) | EP1511953B1 (fr) |
JP (1) | JP4391933B2 (fr) |
CN (1) | CN100383438C (fr) |
AT (1) | ATE501384T1 (fr) |
AU (1) | AU2003250356A1 (fr) |
CA (1) | CA2488902C (fr) |
DE (1) | DE60336310D1 (fr) |
ES (1) | ES2362724T3 (fr) |
FR (1) | FR2840968B1 (fr) |
RU (1) | RU2314447C2 (fr) |
WO (1) | WO2003106869A2 (fr) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN102505927A (zh) * | 2011-12-16 | 2012-06-20 | 中国石油天然气股份有限公司 | 金属包裹式高温密封结构及其制作方法 |
Families Citing this family (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2902843A1 (fr) * | 2006-06-23 | 2007-12-28 | Snecma Sa | Secteur de redresseur de compresseur ou secteur de distributeur de turbomachine |
EP2132465B1 (fr) * | 2007-03-08 | 2014-07-16 | Cameron International Corporation | Joint composite métallique encapsulé |
US20080260455A1 (en) * | 2007-04-17 | 2008-10-23 | Air Products And Chemicals, Inc. | Composite Seal |
GB0721223D0 (en) * | 2007-10-30 | 2007-12-05 | Kovacs Laurence | A gasket |
US20100019460A1 (en) * | 2008-07-22 | 2010-01-28 | General Electric Company | Embossed end cover and/or combustion casing gasket and related method |
FR2974401B1 (fr) * | 2011-04-22 | 2013-06-14 | Commissariat Energie Atomique | Joint d'etancheite metallique a ame ceramique |
CN102563070A (zh) * | 2012-02-20 | 2012-07-11 | 成都均英密封材料有限公司 | 双重密封垫 |
US9114368B2 (en) | 2013-03-08 | 2015-08-25 | Cornelius, Inc. | Batch carbonator and method of forming a carbonated beverage |
KR20150143551A (ko) * | 2013-04-04 | 2015-12-23 | 코넬리어스 아이엔씨. | 밀봉 및 소포 장치 |
US10785996B2 (en) | 2015-08-25 | 2020-09-29 | Cornelius, Inc. | Apparatuses, systems, and methods for inline injection of gases into liquids |
US10477883B2 (en) | 2015-08-25 | 2019-11-19 | Cornelius, Inc. | Gas injection assemblies for batch beverages having spargers |
CN108458182A (zh) * | 2018-04-23 | 2018-08-28 | 上海冀晟能源科技有限公司 | 耐高温熔盐腐蚀的密封件及其制造方法 |
US11040314B2 (en) | 2019-01-08 | 2021-06-22 | Marmon Foodservice Technologies, Inc. | Apparatuses, systems, and methods for injecting gasses into beverages |
CN114688250A (zh) * | 2022-04-19 | 2022-07-01 | 北京通美晶体技术股份有限公司 | 一种用于砷化镓晶体生长用新型密封结构 |
Family Cites Families (14)
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US2249981A (en) * | 1939-06-15 | 1941-07-22 | Chester M Roe | Packing for stuffing boxes and the like |
US3511685A (en) * | 1964-03-10 | 1970-05-12 | Minnesota Rubber Co | Method of making sealing rings |
US3481824A (en) * | 1965-12-23 | 1969-12-02 | Johns Manville | Expansible packing with metal mesh core |
DE3005792A1 (de) * | 1980-02-15 | 1981-08-20 | Reinz Dichtungs-Gesellschaft Mbh, 7910 Neu-Ulm | Abdichtelement |
US4298207A (en) * | 1980-08-29 | 1981-11-03 | The Marlo Company, Inc. | Resilient gasket material |
JPS5850361A (ja) * | 1981-09-17 | 1983-03-24 | Akira Washida | 金属ガスケツト |
US4397472A (en) * | 1982-11-12 | 1983-08-09 | Felt Products Mfg. Co. | Cylinder head gasket with expanded graphite filler |
US4519619A (en) * | 1984-09-25 | 1985-05-28 | Felt Products Mfg. Co. | High temperature resistant gasket having improved recovery characteristics |
US4676515A (en) * | 1986-11-20 | 1987-06-30 | Felt Products Mfg. Co. | Composite embossed sandwich gasket with graphite layer |
GB2205906B (en) * | 1987-05-20 | 1990-12-19 | Hitachi Chemical Co Ltd | Gasket material and head gasket |
US5014917A (en) * | 1989-11-27 | 1991-05-14 | The United States Of America As Represented By The Administrator Of The National Aeronautics And Space Administration | High-temperature, flexible, thermal barrier seal |
JPH08219291A (ja) * | 1995-02-10 | 1996-08-27 | Nichias Corp | 金属被覆型ガスケット |
JPH10213230A (ja) * | 1997-01-27 | 1998-08-11 | Japan Metal Gasket Co Ltd | ガスケット及びその製造方法 |
US20010003389A1 (en) * | 1999-02-16 | 2001-06-14 | C. James Bushman | High temperature static seal |
-
2002
- 2002-06-13 FR FR0207260A patent/FR2840968B1/fr not_active Expired - Lifetime
-
2003
- 2003-06-11 JP JP2004513652A patent/JP4391933B2/ja not_active Expired - Lifetime
- 2003-06-11 CA CA2488902A patent/CA2488902C/fr not_active Expired - Fee Related
- 2003-06-11 DE DE60336310T patent/DE60336310D1/de not_active Expired - Lifetime
- 2003-06-11 RU RU2005100505/06A patent/RU2314447C2/ru not_active IP Right Cessation
- 2003-06-11 ES ES03760006T patent/ES2362724T3/es not_active Expired - Lifetime
- 2003-06-11 AT AT03760006T patent/ATE501384T1/de not_active IP Right Cessation
- 2003-06-11 AU AU2003250356A patent/AU2003250356A1/en not_active Abandoned
- 2003-06-11 CN CNB038136260A patent/CN100383438C/zh not_active Expired - Fee Related
- 2003-06-11 EP EP03760006A patent/EP1511953B1/fr not_active Expired - Lifetime
- 2003-06-11 US US10/516,299 patent/US7255353B2/en not_active Expired - Lifetime
- 2003-06-11 WO PCT/FR2003/001740 patent/WO2003106869A2/fr active Application Filing
Non-Patent Citations (1)
Title |
---|
None |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN102505927A (zh) * | 2011-12-16 | 2012-06-20 | 中国石油天然气股份有限公司 | 金属包裹式高温密封结构及其制作方法 |
Also Published As
Publication number | Publication date |
---|---|
US7255353B2 (en) | 2007-08-14 |
ES2362724T3 (es) | 2011-07-12 |
FR2840968B1 (fr) | 2004-08-06 |
RU2314447C2 (ru) | 2008-01-10 |
WO2003106869A3 (fr) | 2004-04-01 |
RU2005100505A (ru) | 2005-06-10 |
DE60336310D1 (en) | 2011-04-21 |
CA2488902C (fr) | 2012-09-18 |
ATE501384T1 (de) | 2011-03-15 |
EP1511953B1 (fr) | 2011-03-09 |
JP2005529299A (ja) | 2005-09-29 |
AU2003250356A1 (en) | 2003-12-31 |
EP1511953A2 (fr) | 2005-03-09 |
US20050225038A1 (en) | 2005-10-13 |
JP4391933B2 (ja) | 2009-12-24 |
CA2488902A1 (fr) | 2003-12-24 |
CN100383438C (zh) | 2008-04-23 |
FR2840968A1 (fr) | 2003-12-19 |
CN1659393A (zh) | 2005-08-24 |
AU2003250356A8 (en) | 2003-12-31 |
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