CN112253750A - Flexible graphite braided sealing strip and mounting method thereof - Google Patents
Flexible graphite braided sealing strip and mounting method thereof Download PDFInfo
- Publication number
- CN112253750A CN112253750A CN202011133234.5A CN202011133234A CN112253750A CN 112253750 A CN112253750 A CN 112253750A CN 202011133234 A CN202011133234 A CN 202011133234A CN 112253750 A CN112253750 A CN 112253750A
- Authority
- CN
- China
- Prior art keywords
- sealed
- flexible graphite
- sealing
- sealing strip
- woven
- Prior art date
- Legal status (The legal status 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 status listed.)
- Pending
Links
- 238000007789 sealing Methods 0.000 title claims abstract description 93
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 title claims abstract description 52
- 239000010439 graphite Substances 0.000 title claims abstract description 52
- 229910002804 graphite Inorganic materials 0.000 title claims abstract description 52
- 238000000034 method Methods 0.000 title claims abstract description 19
- 239000013013 elastic material Substances 0.000 claims abstract description 5
- 238000009941 weaving Methods 0.000 claims abstract description 4
- 238000000926 separation method Methods 0.000 claims description 10
- 239000000463 material Substances 0.000 claims description 8
- 230000006835 compression Effects 0.000 claims description 3
- 238000007906 compression Methods 0.000 claims description 3
- 238000009434 installation Methods 0.000 abstract description 10
- 230000000694 effects Effects 0.000 abstract description 7
- 238000001125 extrusion Methods 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 239000010425 asbestos Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 238000010030 laminating Methods 0.000 description 1
- 229910052895 riebeckite Inorganic materials 0.000 description 1
- 230000035882 stress Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 230000008646 thermal stress Effects 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
Images
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
- F16J15/104—Sealings between relatively-stationary surfaces with solid packing compressed between sealing surfaces with non-metallic packing characterised by structure
-
- 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
- F16J15/062—Sealings between relatively-stationary surfaces with solid packing compressed between sealing surfaces characterised by the geometry of the seat
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Geometry (AREA)
- Gasket Seals (AREA)
- Sealing Devices (AREA)
Abstract
The application belongs to the technical field of structural sealing, and particularly relates to a flexible graphite woven sealing strip and an installation method thereof. The flexible graphite braided sealing strip comprises: an outer seal part (1) and an inner seal part (2). The cross section of the outer sealing part (1) is annular, and the outer sealing part (1) is formed by weaving a plurality of flexible graphite ropes; the inner sealing part (2) is sleeved in the outer sealing part (1), the cross section of the inner sealing part (2) is C-shaped, and the inner sealing part (2) is made of high-temperature-resistant elastic material. The utility model provides a sealing strip is woven to flexible graphite, and the outside adopts flexible graphite rope to weave the structure, and inside adopts C type elastic tube structure, can satisfy the sealed requirement of high temperature part, and convenient processing again can effectively solve the sealed problem behind the big plane local deformation of high temperature part, under the high temperature condition, guarantees to have compensation deflection and guarantees sealed effect.
Description
Technical Field
The application belongs to the technical field of structural sealing, and particularly relates to a flexible graphite woven sealing strip and an installation method thereof.
Background
The sealing measure on the joint surface is that the sealing gasket (made of rubber, asbestos, soft copper and other materials) can be adopted for the small plane to increase the sealing performance; the large plane is basically sealed by the upper plane and the lower plane in a fitting manner, and the requirement on the flatness of the joint surface is high.
The sealing measures in the prior art are not suitable for high-temperature environments generally, good sealing measures are not available in high-temperature components, and when the large plane of the high-temperature component is sealed, the base body deforms due to thermal stress and the like, the joint surface is separated, so that the sealing ring of the joint surface of the mounting edge is damaged, and air leakage is caused.
Accordingly, a technical solution is desired to overcome or at least alleviate at least one of the above-mentioned drawbacks of the prior art.
Disclosure of Invention
The application aims to provide a flexible graphite braided sealing strip and an installation method thereof, so as to solve at least one problem in the prior art.
The technical scheme of the application is as follows:
a first aspect of the present application provides a flexible graphite braided sealing strip comprising:
the cross section of the outer sealing part is annular, and the outer sealing part is formed by weaving a plurality of flexible graphite ropes;
the inner sealing part is sleeved in the outer sealing part, the cross section of the inner sealing part is C-shaped, and the inner sealing part is made of high-temperature-resistant elastic material.
Optionally, the inner sealing portion is made of GH 4145.
The second aspect of the present application provides a method for installing a flexible graphite braided sealing strip, where based on the flexible graphite braided sealing strip as described above, sealing a first structure to be sealed and a second structure to be sealed by the flexible graphite braided sealing strip includes:
the method comprises the following steps: a sealing groove is formed in the first to-be-sealed structure or the second to-be-sealed structure;
step two: mounting the flexible graphite braided sealing strip in the sealing groove;
step three: and mechanically connecting the first to-be-sealed structure with the second to-be-sealed structure.
Optionally, before the step one, the method further comprises: and selecting the specification of the flexible graphite braided sealing strip according to the maximum gap L separated when the first structure to be sealed and the second structure to be sealed are assembled.
Optionally, the selecting the specification of the flexible graphite braided sealing strip according to the maximum separation gap when the first structure to be sealed and the second structure to be sealed are assembled comprises:
when the maximum working load is applied to the flexible graphite braided sealing strip, the maximum separation gap is ensured to be smaller than the maximum allowable compression S when the two structures to be sealed are assembled, wherein,
in the above formula, P is the workload variation, b is the local width of the inner seal portion, h is the thickness of the inner seal portion, E is the material elastic modulus of the inner seal portion, d is the outer diameter of the inner seal portion, and L is the disengagement gap when the two structures to be sealed are assembled.
Optionally, in the third step, the first structure to be sealed is bolted to the second structure to be sealed.
The invention has at least the following beneficial technical effects:
the utility model provides a sealing strip is woven to flexible graphite, and the outside adopts flexible graphite rope to weave the structure, and inside adopts C type elastic tube structure, can satisfy the sealed requirement of high temperature part, and convenient processing again can effectively solve the sealed problem behind the big plane local deformation of high temperature part, under the high temperature condition, guarantees to have compensation deflection and guarantees sealed effect.
Drawings
FIG. 1 is a schematic view of a flexible graphite woven sealing strip according to one embodiment of the present application;
FIG. 2 is a schematic view of a flexible graphite woven weatherstrip in accordance with an embodiment of the present application before installation;
FIG. 3 is a schematic illustration of an embodiment of the present application in the installation of a flexible graphite woven weatherstrip;
FIG. 4 is a schematic view of an embodiment of the flexible graphite woven weatherstrip of the present application after installation;
FIG. 5 is a schematic view of the overall assembly of a flexible graphite woven weatherstrip according to one embodiment of the present application.
Wherein:
1-an outer seal; 2-inner seal; 3-a first structure to be sealed; 4-second to-be-sealed structure.
Detailed Description
In order to make the implementation objects, technical solutions and advantages of the present application clearer, the technical solutions in the embodiments of the present application will be described in more detail below with reference to the drawings in the embodiments of the present application. In the drawings, the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The described embodiments are a subset of the embodiments in the present application and not all embodiments in the present application. The embodiments described below with reference to the drawings are exemplary and intended to be used for explaining the present application and should not be construed as limiting the present application. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application. Embodiments of the present application will be described in detail below with reference to the accompanying drawings.
In the description of the present application, it is to be understood that the terms "center", "longitudinal", "lateral", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, and are used merely for convenience in describing the present application and for simplifying the description, and do not indicate or imply that the referenced device or element must have a particular orientation, be constructed in a particular orientation, and be operated, and therefore should not be construed as limiting the scope of the present application.
The present application is described in further detail below with reference to fig. 1 to 5.
A first aspect of the present application provides a flexible graphite braided sealing strip comprising: an outer seal 1 and an inner seal 2.
Specifically, as shown in fig. 1, the cross section of the outer sealing part 1 is annular, and the outer sealing part 1 is woven by a plurality of flexible graphite ropes; the inner sealing part 2 is sleeved in the outer sealing part 1, the cross section of the inner sealing part 2 is C-shaped, and the inner sealing part 2 is made of high-temperature-resistant elastic material.
The utility model provides a sealing strip is woven to flexible graphite, divide into inside and outside two parts, and outer sealing 1 chooses for use flexible graphite rope to weave the material, and mainly used increases area of contact and strengthens sealed effect, through weaving of several graphite ropes, with the winding of inner sealing 2 in the inside formation an organic whole, and outer sealing 1 is the laminating installation limit plane that flexible high temperature resistant material can be better, also can be fine under high temperature environment plays sealed effect.
Further, the inner sealing part 2 is made of high-temperature-resistant elastic material, generally GH4145, and the manufactured C-shaped thin-wall open pipe has resilience and can compensate the deformation of a joint surface, and the material is used for ensuring that the sealing strip has good elasticity under a high-temperature environment.
A second aspect of the present application provides a method for installing a flexible graphite braided sealing strip, based on the above flexible graphite braided sealing strip, with reference to fig. 2 to 4, a process of sealing a first structure 3 to be sealed and a second structure 4 to be sealed by the flexible graphite braided sealing strip is described, including the following steps:
the method comprises the following steps: a sealing groove is formed in the first to-be-sealed structure 3 or the second to-be-sealed structure 4;
step two: mounting the flexible graphite braided sealing strip in the sealing groove;
step three: the first structure 3 to be sealed is mechanically connected, for example, bolted or the like, to the second structure 4 to be sealed, as shown in fig. 5.
According to the installation method of the flexible graphite braided sealing strip, before the first to-be-sealed structure 3 and the second to-be-sealed structure 4 are sealed through the flexible graphite braided sealing strip, the maximum possible separation gap between the two to-be-sealed structures is considered according to the medium pressure, the temperature and other factors of the to-be-sealed structures, and the specification of the appropriate sealing strip is selected. In this embodiment, when the maximum working load is applied to the flexible graphite braided sealing strip, it is ensured that the maximum separation gap when the two structures to be sealed are assembled is less than the maximum allowable compression S, wherein,
in the above formula, P is the workload variation, b is the local width of the inner seal portion 2, h is the thickness of the inner seal portion 2, E is the material elastic modulus of the inner seal portion 2, d is the outer diameter of the inner seal portion 2, and L is the separation gap when the two structures to be sealed are assembled.
According to the installation method of the flexible graphite woven sealing strip, during assembly, the flexible graphite woven sealing strip is placed into the arranged sealing groove, certain extrusion is performed, a better sealing effect is achieved, and the completeness of the two joint surface sealing rings to be sealed is guaranteed after the joint surface deforms, so that the extrusion deformation is larger than the separation gap L, the joint surface is always kept to have enough stress, and the sealing requirement is guaranteed.
The flexible graphite woven sealing strip and the installation method thereof can solve the sealing problem of a high-temperature component after local deformation of a large plane, and ensure that the flexible graphite woven sealing strip has the function of compensating deformation and ensuring the sealing effect under the high-temperature condition.
The above description is only for the specific embodiments of the present application, but the scope of the present application is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present application should be covered within the scope of the present application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.
Claims (6)
1. A flexible graphite woven weatherstrip, comprising:
the cross section of the outer sealing part (1) is annular, and the outer sealing part (1) is formed by weaving a plurality of flexible graphite ropes;
interior sealing (2), interior sealing (2) cover is established in external sealing (1), the transversal C type of personally submitting of interior sealing (2), the material of interior sealing (2) is high temperature resistant elastic material.
2. The flexible graphite braid seal strip of claim 1 wherein the inner seal portion (2) is made of GH 4145.
3. The mounting method of the flexible graphite braided sealing strip is based on any one of claims 1 to 2, and the step of sealing the first structure (3) to be sealed and the second structure (4) to be sealed through the flexible graphite braided sealing strip comprises the following steps:
the method comprises the following steps: a sealing groove is formed in the first to-be-sealed structure (3) or the second to-be-sealed structure (4);
step two: mounting the flexible graphite braided sealing strip in the sealing groove;
step three: mechanically connecting the first structure (3) to be sealed with the second structure (4) to be sealed.
4. The method of claim 3, further comprising, prior to step one: and selecting the specification of the flexible graphite braided sealing strip according to the maximum separation gap when the first to-be-sealed structure (3) and the second to-be-sealed structure (4) are assembled.
5. The method for installing the flexible graphite woven sealing strip according to claim 4, wherein the selecting the specification of the flexible graphite woven sealing strip according to the maximum separation gap when the first structure to be sealed (3) and the second structure to be sealed (4) are assembled comprises:
when the maximum working load is applied to the flexible graphite braided sealing strip, the maximum separation gap is ensured to be smaller than the maximum allowable compression S when the two structures to be sealed are assembled, wherein,
in the above formula, P is the workload variation, b is the local width of the inner seal part (2), h is the thickness of the inner seal part (2), E is the material elastic modulus of the inner seal part (2), d is the outer diameter of the inner seal part (2), and L is the separation gap when the two structures to be sealed are assembled.
6. The method for mounting the flexible graphite braided sealing strip according to claim 3, characterized in that in the third step, the first structure (3) to be sealed and the second structure (4) to be sealed are bolted.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011133234.5A CN112253750A (en) | 2020-10-21 | 2020-10-21 | Flexible graphite braided sealing strip and mounting method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011133234.5A CN112253750A (en) | 2020-10-21 | 2020-10-21 | Flexible graphite braided sealing strip and mounting method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112253750A true CN112253750A (en) | 2021-01-22 |
Family
ID=74263436
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011133234.5A Pending CN112253750A (en) | 2020-10-21 | 2020-10-21 | Flexible graphite braided sealing strip and mounting method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112253750A (en) |
Citations (23)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1194509A (en) * | 1967-12-07 | 1970-06-10 | Marlo Co Inc | Improvements in or relating to Packings for Pumps, Valves and the like |
| GB1356727A (en) * | 1971-08-24 | 1974-06-12 | Commissariat Energie Atomique | Resilient annular gasket |
| US4218067A (en) * | 1979-02-02 | 1980-08-19 | Pressure Science Incorporated | Multi-ply sealing rings |
| US4239242A (en) * | 1978-12-18 | 1980-12-16 | Burns William G | Pipe union and seal |
| DE3127523A1 (en) * | 1981-07-11 | 1983-01-27 | Hecker Werke GmbH & Co. KG Spezialfabriken für Dicht- und Reibelemente, 7031 Weil | Stuffing-box packing |
| EP0378436A2 (en) * | 1989-01-13 | 1990-07-18 | Doryokuro Kakunenryo Kaihatsu Jigyodan | Elastic-type metal gasket |
| CA2110754A1 (en) * | 1992-12-09 | 1994-06-10 | Robert Anthony Crosier | Braided graphite-foil and method of production |
| US5639100A (en) * | 1993-01-07 | 1997-06-17 | Ksb Aktiengesellschaft | Metal gasket |
| DE29706684U1 (en) * | 1997-04-12 | 1997-07-17 | Kempchen & Co. Gmbh, 46049 Oberhausen | Sealing ring |
| CN1539050A (en) * | 2001-08-04 | 2004-10-20 | 西门子公司 | Seal element for sealing gap and combustion turbine having seal element |
| CN1682048A (en) * | 2002-09-11 | 2005-10-12 | 日本皮拉工业株式会社 | Material for gland packing and the gland packing |
| JP2005282772A (en) * | 2004-03-30 | 2005-10-13 | Nippon Valqua Ind Ltd | Gland packing |
| CN101384844A (en) * | 2006-02-20 | 2009-03-11 | 爱德华兹有限公司 | Seal |
| CN101627237A (en) * | 2007-03-08 | 2010-01-13 | 日本皮拉工业株式会社 | Gland packing |
| CN101865288A (en) * | 2010-05-13 | 2010-10-20 | 励行根 | Cladding sealing ring and manufacturing method thereof |
| CN103174836A (en) * | 2013-03-14 | 2013-06-26 | 自贡鑫剑密封科技有限公司 | Graphite packing loop and seal assembly thereof |
| CN203202230U (en) * | 2013-04-28 | 2013-09-18 | 慈溪卡希尔密封材料有限公司 | High temperature resistant graphite wire rod |
| CN103362567A (en) * | 2012-03-28 | 2013-10-23 | 通用电气公司 | Turbine assembly and method for assembling turbine |
| CN104616706A (en) * | 2015-02-05 | 2015-05-13 | 喻杰 | Integrated pressure-resistant shell assembly |
| CN106051159A (en) * | 2016-07-25 | 2016-10-26 | 铜陵海源超微粉体有限公司 | Graphite ring used for producing powder |
| CN206092953U (en) * | 2016-01-25 | 2017-04-12 | 青岛强龙电力石化配件有限公司 | Braided packing of outsourcing steel wire graphite |
| CN210890087U (en) * | 2019-11-22 | 2020-06-30 | 廊坊久旺密封材料有限公司 | High-temperature-resistant and stretch-resistant graphite packing |
| CN111649133A (en) * | 2020-06-03 | 2020-09-11 | 滨州双峰石墨密封材料有限公司 | Winding gasket |
-
2020
- 2020-10-21 CN CN202011133234.5A patent/CN112253750A/en active Pending
Patent Citations (23)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1194509A (en) * | 1967-12-07 | 1970-06-10 | Marlo Co Inc | Improvements in or relating to Packings for Pumps, Valves and the like |
| GB1356727A (en) * | 1971-08-24 | 1974-06-12 | Commissariat Energie Atomique | Resilient annular gasket |
| US4239242A (en) * | 1978-12-18 | 1980-12-16 | Burns William G | Pipe union and seal |
| US4218067A (en) * | 1979-02-02 | 1980-08-19 | Pressure Science Incorporated | Multi-ply sealing rings |
| DE3127523A1 (en) * | 1981-07-11 | 1983-01-27 | Hecker Werke GmbH & Co. KG Spezialfabriken für Dicht- und Reibelemente, 7031 Weil | Stuffing-box packing |
| EP0378436A2 (en) * | 1989-01-13 | 1990-07-18 | Doryokuro Kakunenryo Kaihatsu Jigyodan | Elastic-type metal gasket |
| CA2110754A1 (en) * | 1992-12-09 | 1994-06-10 | Robert Anthony Crosier | Braided graphite-foil and method of production |
| US5639100A (en) * | 1993-01-07 | 1997-06-17 | Ksb Aktiengesellschaft | Metal gasket |
| DE29706684U1 (en) * | 1997-04-12 | 1997-07-17 | Kempchen & Co. Gmbh, 46049 Oberhausen | Sealing ring |
| CN1539050A (en) * | 2001-08-04 | 2004-10-20 | 西门子公司 | Seal element for sealing gap and combustion turbine having seal element |
| CN1682048A (en) * | 2002-09-11 | 2005-10-12 | 日本皮拉工业株式会社 | Material for gland packing and the gland packing |
| JP2005282772A (en) * | 2004-03-30 | 2005-10-13 | Nippon Valqua Ind Ltd | Gland packing |
| CN101384844A (en) * | 2006-02-20 | 2009-03-11 | 爱德华兹有限公司 | Seal |
| CN101627237A (en) * | 2007-03-08 | 2010-01-13 | 日本皮拉工业株式会社 | Gland packing |
| CN101865288A (en) * | 2010-05-13 | 2010-10-20 | 励行根 | Cladding sealing ring and manufacturing method thereof |
| CN103362567A (en) * | 2012-03-28 | 2013-10-23 | 通用电气公司 | Turbine assembly and method for assembling turbine |
| CN103174836A (en) * | 2013-03-14 | 2013-06-26 | 自贡鑫剑密封科技有限公司 | Graphite packing loop and seal assembly thereof |
| CN203202230U (en) * | 2013-04-28 | 2013-09-18 | 慈溪卡希尔密封材料有限公司 | High temperature resistant graphite wire rod |
| CN104616706A (en) * | 2015-02-05 | 2015-05-13 | 喻杰 | Integrated pressure-resistant shell assembly |
| CN206092953U (en) * | 2016-01-25 | 2017-04-12 | 青岛强龙电力石化配件有限公司 | Braided packing of outsourcing steel wire graphite |
| CN106051159A (en) * | 2016-07-25 | 2016-10-26 | 铜陵海源超微粉体有限公司 | Graphite ring used for producing powder |
| CN210890087U (en) * | 2019-11-22 | 2020-06-30 | 廊坊久旺密封材料有限公司 | High-temperature-resistant and stretch-resistant graphite packing |
| CN111649133A (en) * | 2020-06-03 | 2020-09-11 | 滨州双峰石墨密封材料有限公司 | Winding gasket |
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Application publication date: 20210122 |
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| RJ01 | Rejection of invention patent application after publication |