CN218294448U - Self-tightening type metal tube bundle corrugated composite gasket - Google Patents
Self-tightening type metal tube bundle corrugated composite gasket Download PDFInfo
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- CN218294448U CN218294448U CN202222394694.4U CN202222394694U CN218294448U CN 218294448 U CN218294448 U CN 218294448U CN 202222394694 U CN202222394694 U CN 202222394694U CN 218294448 U CN218294448 U CN 218294448U
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- tube bundle
- cofferdam
- annular tube
- self
- framework
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- 239000002184 metal Substances 0.000 title claims abstract description 47
- 239000002131 composite material Substances 0.000 title claims abstract description 38
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 60
- 239000010959 steel Substances 0.000 claims abstract description 60
- 229910052755 nonmetal Inorganic materials 0.000 claims abstract description 11
- 239000011261 inert gas Substances 0.000 claims abstract description 6
- 230000008859 change Effects 0.000 claims abstract description 4
- 238000003466 welding Methods 0.000 claims description 3
- 238000007789 sealing Methods 0.000 abstract description 18
- 230000000694 effects Effects 0.000 abstract description 3
- 230000006835 compression Effects 0.000 description 4
- 238000007906 compression Methods 0.000 description 4
- 230000006872 improvement Effects 0.000 description 3
- 238000004804 winding Methods 0.000 description 3
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 239000010439 graphite Substances 0.000 description 2
- 229910002804 graphite Inorganic materials 0.000 description 2
- 238000010030 laminating Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000003068 static effect Effects 0.000 description 2
- 239000010425 asbestos Substances 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- -1 polytetrafluoroethylene Polymers 0.000 description 1
- 229920001343 polytetrafluoroethylene Polymers 0.000 description 1
- 239000004810 polytetrafluoroethylene Substances 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 230000008439 repair process Effects 0.000 description 1
- 229910052895 riebeckite Inorganic materials 0.000 description 1
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Abstract
The utility model discloses a self-tightening metal tube bundle corrugated composite gasket, which comprises an annular tube bundle framework, an inner diameter layer and an outer diameter layer; the annular tube bundle framework comprises a plurality of thin-wall metal pipe fittings which are coaxially and sequentially nested, have the same structure and gradually change the diameter and the size, and nonmetal layers are symmetrically arranged on the upper side and the lower side of the annular tube bundle framework along the axial direction; the inner diameter layer comprises a plurality of inner steel belt cofferdams which are sequentially arranged in a stacking manner along the radial direction of the annular tube bundle framework; the outer diameter layer comprises a plurality of outer steel belt cofferdams which are sequentially arranged in a stacking mode along the radial direction of the annular tube bundle framework, the inner steel belt cofferdams and the outer steel belt cofferdams are identical in structure, and the steel belt cofferdams are connected with the annular tube bundle framework. A plurality of hollow thin-wall metal pipe fittings with oval cross sections are coaxially and sequentially nested to form an annular pipe bundle framework, inert gas or air is filled in the pipe fittings, and the pipe fittings expand when the temperature of a sealing occasion rises, so that the interface stress of the sealing surface of the composite gasket can be increased, and the sealing gasket has a self-tightening effect.
Description
Technical Field
The utility model relates to a flange static seal technical field specifically indicates a from compact form metal tube bank ripple composite gasket.
Background
In the technical field of flange static sealing, both the metal wound gasket and the tooth-shaped composite gasket are widely applied sealing gaskets, can resist high temperature and high pressure and can be used under the conditions of ultralow temperature or vacuum. However, both metal wound gaskets and tooth-shaped composite gaskets have their limitations and can be improved.
The metal winding gasket belongs to a thin-strip narrow-band winding composite superposed structure, has obvious freeness in mechanical properties such as torsion resistance, bending resistance and the like, has larger difference, is easy to damage in a weak direction, and particularly has higher damage rate of the large-diameter metal winding gasket; a sudden rack break-out condition often occurs during the manufacturing process; during transportation and installation, if the impact or vibration is too large, the phenomena of damage and scattering of the frame can occur, which not only influences the equipment maintenance progress, but also can cause catastrophic accidents. The metal wound gasket does not provide satisfactory sealing performance under poor mounting conditions (e.g., slight flaws in the flange face).
The metal tooth-shaped framework of the traditional tooth-shaped composite gasket has no compression resilience; because of the limitation of the metal tooth-shaped framework structure of the tooth-shaped composite gasket, the thickness of the graphite composite layer is also limited, so that the tooth-shaped composite gasket is limited in application in occasions requiring better elastic compensation performance. In addition, the large-diameter metal tooth-shaped framework is limited by the width of the steel plates, a plurality of steel plates are required to be subjected to tailor welding, and a welded junction has a large safety risk. The traditional metal tooth-shaped framework processing technology has the problems of high equipment requirement and high material cost when processing large-diameter products.
Traditional corrugated composite gaskets are more limited than traditional tooth-shaped composite gaskets.
Therefore, a self-tightening metal tube bundle corrugated composite gasket is provided to solve the existing defects.
SUMMERY OF THE UTILITY MODEL
The to-be-solved technical problem of the utility model is to overcome the defect of above-mentioned technique, provide a self-clinching formula metal tube bank ripple composite shim.
In order to solve the technical problem, the utility model provides a technical scheme is a from compact form metal tube bank ripple composite pad piece: comprises an annular tube bundle framework, an inner diameter layer and an outer diameter layer;
the annular tube bundle framework comprises a plurality of thin-wall metal pipe fittings which are coaxially and sequentially nested, have the same structure and gradually change the diameter and the size, and nonmetal layers are symmetrically arranged on the upper side and the lower side of the annular tube bundle framework along the axial direction;
the inner diameter layer comprises a plurality of inner steel belt cofferdams which are sequentially arranged in a laminating way along the radial direction of the annular tube bundle framework; the outer diameter layer comprises a plurality of outer steel belt cofferdams which are sequentially arranged in a stacking mode along the radial direction of the annular tube bundle framework, the inner steel belt cofferdam and the outer steel belt cofferdams are identical in structure, and the steel belt cofferdams are connected with the annular tube bundle framework.
As an improvement, inert gas or air is filled in the thin-wall metal pipe fitting.
As an improvement, the axial section of the steel strip cofferdam is W-shaped, and the opening directions of the outer steel strip cofferdam and the inner steel strip cofferdam are the same.
As an improvement, an outer steel ring is arranged on the outer side of the outer steel belt cofferdam, and an inner steel ring is arranged on the inner side of the inner steel belt cofferdam.
Compared with the prior art, the utility model the advantage lie in: 1. a plurality of hollow thin-wall metal pipe fittings with oval cross sections are coaxially and sequentially nested to form an annular pipe bundle framework, inert gas or air is filled in the thin-wall metal pipe fittings, and the thin-wall metal pipe fittings expand when the temperature rises in a sealing occasion, so that the interface stress of a sealing surface of the composite gasket can be increased, and the sealing gasket has a self-tightening effect;
2. an annular tube bundle framework radial protection cofferdam is formed by the W-shaped steel strip cofferdam, so that the protection of a non-metal layer is realized, the non-metal layer is prevented from being impacted by a medium, the sealing safety of the composite gasket is enhanced, and meanwhile, the thickness of the non-metal layer can be increased as the height of the steel strip cofferdam is greater than that of the annular tube bundle framework, so that the compression performance and resilience performance of the composite gasket are improved, and the working condition adaptability of the gasket is improved;
3. the height of the steel strip cofferdam is larger than the thickness of the annular tube bundle framework, so that the thickness of the non-metallic layer can be increased, and the surface of the gasket is provided with a flexible layer with enough thickness, thereby being more suitable for the condition that the sealing surface of the flange has slight flaws;
4. through the arrangement of the steel belt cofferdam, radial pressure is provided for the composite gasket, the axial compression performance of the gasket is enhanced, and meanwhile, the sealing performance of the gasket is further improved.
Drawings
Fig. 1 is a schematic structural view of a self-tightening type metal tube bundle corrugated composite gasket of the present invention.
Fig. 2 is a top view of the self-tightening type metal tube bundle corrugated composite gasket of the present invention.
Fig. 3 isbase:Sub>A cross-sectional view atbase:Sub>A-base:Sub>A in fig. 2.
Fig. 4 is a partially enlarged view of fig. 3 at B.
As shown in the figure: 1. the steel tube comprises an annular tube bundle framework, 2 parts of an inner diameter layer, 3 parts of an outer diameter layer, 4 parts of thin-wall metal tube fittings, 5 parts of a non-metal layer, 6 parts of an inner steel band cofferdam, 7 parts of an outer steel band cofferdam, 8 parts of an outer steel ring, 9 parts of an inner steel ring.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. The components of embodiments of the present invention, as generally described and illustrated in the figures herein, may be arranged and designed in a wide variety of different configurations.
In the description of the embodiments of the present invention, it should be noted that, if the directions or positional relationships indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. appear based on the directions or positional relationships shown in the drawings, or the directions or positional relationships that the products of the present invention are usually placed when used, it is only for convenience of description of the present invention and simplification of description, but not for indication or suggestion that the indicated device or element must have a specific direction, be constructed and operated in a specific direction, and therefore, the present invention should not be construed as being limited thereby. Furthermore, the terms "first," "second," "third," and the like are used solely to distinguish one from another, and are not to be construed as indicating or implying relative importance.
Furthermore, the terms "horizontal", "vertical", "overhang" and the like do not require that the components be absolutely horizontal or overhang, but may be slightly inclined. For example, "horizontal" merely means that the direction is more horizontal than "vertical" and does not mean that the structure must be perfectly horizontal, but may be slightly inclined.
In the description of the embodiments of the present invention, "a plurality" means at least 2.
In the description of the embodiments of the present invention, it should be further noted that unless explicitly stated or limited otherwise, the terms "disposed," "mounted," "connected," and "connected" should be interpreted broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.
Referring to fig. 1-4, a self-tightening metal tube bundle corrugated composite gasket comprises an annular tube bundle framework 1, an inner diameter layer 2 and an outer diameter layer 3;
the annular tube bundle framework 1 comprises a plurality of thin-wall metal pipe fittings 4 which are coaxially and sequentially nested, have the same structure and gradually change the diameter and the size, the cross section of each thin-wall metal pipe fitting 4 is oval, each thin-wall metal pipe fitting 4 is hollow, and the pipe walls between every two adjacent thin-wall metal pipe fittings 4 are connected in a welding mode to guarantee the structural stability of the annular tube bundle framework 1;
meanwhile, the specific number of the thin-wall metal pipe fittings 4 can be set according to actual requirements so as to meet the performance requirements of use occasions.
In practical use, inert gas is filled in the thin-wall metal pipe fitting 4, similarly, air can be filled in the thin-wall metal pipe fitting 4, and when the temperature of a sealing occasion rises, the inert gas or the air in the thin-wall metal pipe fitting 4 expands, so that the interface stress of a sealing surface of the composite gasket can be increased, and the composite gasket has a self-tightening effect.
The annular tube bundle framework 1 is symmetrically provided with the nonmetal layers 5 along the upper side and the lower side of the axial direction, specifically, the nonmetal layers 5 are one or more of asbestos, flexible graphite, polytetrafluoroethylene and ceramic fibers, and the nonmetal layers 5 are arranged to prevent the annular tube bundle framework 1 from directly contacting with a flange to form metal-to-metal sealing, improve the sealing performance and also improve the compression resilience of the composite gasket; meanwhile, in the use process, the repair function can be realized on slight flaws of the sealing surface of the flange;
the inner diameter layer 2 comprises a plurality of inner steel strip cofferdams 6 which are sequentially arranged in a laminating manner along the radial direction of the annular tube bundle framework 1; the outer diameter layer 3 comprises a plurality of outer steel strip cofferdams 7 which are sequentially arranged in a radial direction of the annular tube bundle framework 1 in a stacking mode, the inner steel strip cofferdam 6 is identical to the outer steel strip cofferdam 7 in structure, and the steel strip cofferdam is connected with the annular tube bundle framework 1.
Further, the axial section of the steel strip cofferdam is W-shaped, the opening directions of the outer steel strip cofferdam 7 and the inner steel strip cofferdam 6 are the same, and the height of the steel strip cofferdam is larger than the thickness of the annular tube bundle framework 1.
In the in-service use, through the setting of interior steel band cofferdam 6 and outer steel band cofferdam 7, form the protection cofferdam of the 1 inside and outside of annular tube bank skeleton, can realize the protection to nonmetal layer 5, provide radial confined pressure for composite pad piece simultaneously to reinforcing composite pad piece's axial compressive capacity makes composite pad piece obtain higher stress, promotes composite pad piece's withstand voltage scope and sealing performance.
In actual use occasions, according to requirements of the actual use occasions, the outer steel ring 8 is arranged on the outer side of the outer steel strip cofferdam 7, the inner steel ring 9 is arranged on the inner side of the inner steel strip cofferdam 6, or the outer steel ring 8 and the inner steel ring 9 are respectively arranged on the outer side of the outer steel strip cofferdam 7 and the inner side of the inner steel strip cofferdam 6.
The present invention and the embodiments thereof have been described above, but the description is not limited thereto, and the embodiment shown in the drawings is only one of the embodiments of the present invention, and the actual structure is not limited thereto. In summary, those skilled in the art should understand that they should not be limited to the embodiments described above, and that they can design the similar structure and embodiments without departing from the spirit of the invention.
Claims (7)
1. The utility model provides a self-clinching formula metal tube bundle ripple composite gasket which characterized in that: comprises an annular tube bundle framework (1), an inner diameter layer (2) and an outer diameter layer (3);
the annular tube bundle framework (1) comprises a plurality of thin-wall metal pipe fittings (4) which are coaxially and sequentially nested, have the same structure and gradually change the diameter and the size, and nonmetal layers (5) are symmetrically arranged on the upper side and the lower side of the annular tube bundle framework (1) along the axial direction;
the inner diameter layer (2) comprises a plurality of inner steel band cofferdams (6) which are sequentially arranged in a laminated mode along the radial direction of the annular tube bundle framework (1); the outer diameter layer (3) comprises a plurality of outer steel belt cofferdams (7) which are sequentially arranged in a radial direction along the annular tube bundle framework (1) in a stacking mode, the inner steel belt cofferdam (6) is identical to the outer steel belt cofferdam (7) in structure, and the steel belt cofferdam is connected with the annular tube bundle framework (1).
2. The self-clinching bundle metal corrugated composite gasket of claim 1, wherein: and inert gas or air is filled in the thin-wall metal pipe fitting (4).
3. The self-clinching metal tube bundle corrugated composite gasket of claim 1, wherein: the section of the thin-wall metal pipe fitting (4) is oval.
4. The self-clinching bundle metal corrugated composite gasket of claim 1, wherein: the shaft section of the steel strip cofferdam is W-shaped, and the opening directions of the outer steel strip cofferdam (7) and the inner steel strip cofferdam (6) are the same.
5. The self-clinching metal tube bundle corrugated composite gasket of claim 1, wherein: and the adjacent thin-wall metal pipe fittings (4) are connected by welding.
6. The self-clinching bundle metal corrugated composite gasket of claim 1, wherein: an outer steel ring (8) is arranged on the outer side of the outer steel belt cofferdam (7), and an inner steel ring (9) is arranged on the inner side of the inner steel belt cofferdam (6).
7. The self-clinching metal tube bundle corrugated composite gasket of claim 1, wherein: the height of the steel strip cofferdam is larger than the thickness of the annular tube bundle framework (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222394694.4U CN218294448U (en) | 2022-09-07 | 2022-09-07 | Self-tightening type metal tube bundle corrugated composite gasket |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222394694.4U CN218294448U (en) | 2022-09-07 | 2022-09-07 | Self-tightening type metal tube bundle corrugated composite gasket |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218294448U true CN218294448U (en) | 2023-01-13 |
Family
ID=84813560
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222394694.4U Active CN218294448U (en) | 2022-09-07 | 2022-09-07 | Self-tightening type metal tube bundle corrugated composite gasket |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218294448U (en) |
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2022
- 2022-09-07 CN CN202222394694.4U patent/CN218294448U/en active Active
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 524000 Yalan Crossing of Huguang Road, Xiashan District, Zhanjiang City, Guangdong Province Patentee after: Guangdong Yuekai Technology Equipment Manufacturing Co.,Ltd. Patentee after: Xie Yingqi Address before: 524000 Yalan Crossing of Huguang Road, Xiashan District, Zhanjiang City, Guangdong Province Patentee before: Guangdong YueKai Petrochemical Equipment Accessories Co.,Ltd. Patentee before: Xie Yingqi |