CN204420390U - A kind of novel flange sealing configuration - Google Patents
A kind of novel flange sealing configuration Download PDFInfo
- Publication number
- CN204420390U CN204420390U CN201520056266.8U CN201520056266U CN204420390U CN 204420390 U CN204420390 U CN 204420390U CN 201520056266 U CN201520056266 U CN 201520056266U CN 204420390 U CN204420390 U CN 204420390U
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- CN
- China
- Prior art keywords
- flange
- flexible graphite
- composite gasket
- graphite metal
- tooth composite
- 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.)
- Expired - Fee Related
Links
- 238000007789 sealing Methods 0.000 title claims abstract description 24
- 239000002184 metal Substances 0.000 claims abstract description 41
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims abstract description 38
- 229910002804 graphite Inorganic materials 0.000 claims abstract description 38
- 239000010439 graphite Substances 0.000 claims abstract description 38
- 239000002131 composite material Substances 0.000 claims abstract 13
- 125000006850 spacer group Chemical group 0.000 description 18
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- 230000007774 longterm Effects 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000005381 potential energy Methods 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Landscapes
- Gasket Seals (AREA)
Abstract
本实用新型及管道法兰的密封结构领域，具体涉及一种新型法兰密封结构，其特征在于：它包括上法兰、下法兰和柔性石墨金属波齿复合垫片，所述柔性石墨金属波齿复合垫片位于上法兰和下法兰之间；所述柔性石墨金属波齿复合垫片的金属骨架上下表面都设有多圈截面为半圆形的环形凸台，多圈环形凸台之间等间距布置，并且与上法兰、下法兰和柔性石墨金属波齿复合垫片同圆心；所述柔性石墨金属波齿复合垫片的上下表面均设有柔性石墨层；所述上法兰和下法兰与柔性石墨金属波齿复合垫片的接触面上均设有环形凹槽，所述环形凹槽与环形凸台的数量、位置及形状均相匹配。该法兰密封结构能应用于高温高压工况，并长期保持良好的紧密性，能有效防止法兰的泄漏。
The utility model and the sealing structure field of pipeline flanges specifically relate to a novel flange sealing structure, which is characterized in that it includes an upper flange, a lower flange and a flexible graphite metal wave-tooth composite gasket, and the flexible graphite metal The wave-tooth composite gasket is located between the upper flange and the lower flange; the upper and lower surfaces of the metal skeleton of the flexible graphite metal wave-tooth composite gasket are provided with multi-turn annular bosses with a semicircular cross-section, and the multi-turn annular bosses The tables are arranged at equal intervals, and are concentric with the upper flange, the lower flange and the flexible graphite metal corrugated composite gasket; the upper and lower surfaces of the flexible graphite metal corrugated composite gasket are provided with flexible graphite layers; Annular grooves are provided on the contact surfaces of the upper flange and the lower flange and the flexible graphite metal wave-tooth composite gasket, and the number, position and shape of the annular grooves match the annular bosses. The flange sealing structure can be applied to high temperature and high pressure working conditions, and maintains good tightness for a long time, and can effectively prevent flange leakage.
Description
Technical field
The sealing configuration field of the utility model and piping flange, is specifically related to a kind of novel flange sealing configuration.
Background technique
Since entering 21 century, the contradiction of the same energy supply of economic development, environmental protection, countries in the world are one after another using " safely, efficiently, environmental protection, the economy " theme as industrial development.This trend is the safe operation of high-temperature service and the tightness of connected system at petrochemical industry major embodiment.Flange joint is widely used in the joint of petrochemical industry pressure piping and pressure vessel with its easy-disassembling-assembling advantage.When being in high temperature and high pressure condition for a long time, easily there is leakage failure in flange connections.Conventional prominent face flange is convex surface platform at end face of flange, and operating mode lower flange can produce moment of flexure, pad unbalance stress, flange plate deflects, and easily leaks.In addition, under High Temperature High Pressure serviceability, end face of flange, pad and bolt all can be subject to very large stress, cause the creep of each component materials in Flange joint, cause piping flange connected system to relax, finally cause leakage failure.
Model utility content
For above-mentioned technical problem, the purpose of this utility model is to provide a kind of novel flange sealing configuration, and this flange sealing structure can be applied to high temperature and high pressure condition, and the tightness that long-term maintenance is good, effectively can prevent the leakage of flange.
For achieving the above object, technical solution adopted in the utility model is:
A kind of novel flange sealing configuration, it is characterized in that: it comprises upper flange, lower flange and Expanded graphite metal wave tooth Composition spacer, described Expanded graphite metal wave tooth Composition spacer is between upper flange and lower flange; It is semicircular annular boss that the metal frame upper and lower surface of described Expanded graphite metal wave tooth Composition spacer is all provided with multi-turn cross section, equidistantly arrange between multi-ring annular boss, and with upper flange, lower flange and Expanded graphite metal wave tooth Composition spacer concentric; The upper and lower surface of described Expanded graphite metal wave tooth Composition spacer is equipped with Expanded graphite layer; The surface of contact of described upper flange and lower flange and Expanded graphite metal wave tooth Composition spacer is equipped with annular groove, and the quantity of described annular groove and annular boss, position and shape all match.
Interlaced layout between the multi-ring annular boss of the metal frame upper and lower surface of described Expanded graphite metal wave tooth Composition spacer.
Described upper flange and lower flange are the integrated formed structure comprising flange plate, cone neck and birdsmouth, and the sealing surface of described flange plate is plane; Described flange plate is provided with bolt hole, is bolted to connection between upper flange and lower flange.
The beneficial effects of the utility model are:
1, flange sealing structure of the present utility model can be applied to high temperature and high pressure condition, and the tightness that long-term maintenance is good, effectively can prevent the leakage of flange.Seal form in this structure is provided with ripple profile of tooth boss (namely multi-turn cross section is semicircular annular boss), and corresponding Expanded graphite metal wave tooth Composition spacer is set, multi-section circular arc defines multi-stage sealed, and form a kind of seal form of similar labyrinth seal, can be heat energy by the kinetic energy of interior media, potential energy as much as possible, reduce the pressure energy of interior media, slow down and even stop a leak; And the flange sealing structure in the utility model is compared to common flange, increases effective sealing area, reduces the stress level between flange facing and gasket surface, enhances sealing effect;
2, in the utility model the metal frame upper and lower surface of Expanded graphite metal wave tooth Composition spacer multi-ring annular boss between interlaced layout, namely the annular boss of upper and lower surface differs half period in the frequency occurred, the Expanded graphite metal wave tooth Composition spacer of this spline structure has better compression recovery performance;
3, the upper flange in the present invention and the structure of lower flange, be designed to overall structure by birdsmouth and flange body, avoids because butt welding weld bond defect causes leakage, and structure is simple, easy to use.And being provided with cone neck, cone neck can increase the bearing capacity to moment of flexure, improves the moment of flexure ability to bear of Flange joint.Flangeseal face is avoided arranging boss, and part eliminates moment of flexure between bolt hole and pad force position, and part eliminates the deflection and creep that high temperature and high pressure environment lower flange produces because of moment of flexure.
Accompanying drawing explanation
Fig. 1 is the overall sectional structure schematic diagram (facing) of the utility model embodiment.
Fig. 2 is A portion enlarged diagram (facing) in Fig. 1.
In figure: 1-flange plate, 2-bolt, 3-bore neck, 4-birdsmouth, 5-upper flange, 6-Expanded graphite metal wave tooth Composition spacer, 7-lower flange, 8-annular groove, 9-Expanded graphite layer, 10-metal frame, 11-annular boss.
Embodiment
Below in conjunction with embodiment and accompanying drawing, the utility model is described in further detail.
A kind of novel flange sealing configuration, it is characterized in that: it comprises upper flange 5, lower flange 7 and Expanded graphite metal wave tooth Composition spacer 6, (when upper flange 5 and lower flange 7 are tightly connected mutually) described Expanded graphite metal wave tooth Composition spacer 6 is between upper flange 5 and lower flange 7; It is semicircular annular boss 11 that metal frame 10 upper and lower surface of described Expanded graphite metal wave tooth Composition spacer 6 is all provided with multi-turn cross section, between multi-ring annular boss 11 equidistantly arrange (namely there is certain interval between finger ring shape boss 11 and annular boss 11), and with upper flange 5, lower flange 7 and Expanded graphite metal wave tooth Composition spacer 6 concentric; The upper and lower surface of described Expanded graphite metal wave tooth Composition spacer 6 is equipped with Expanded graphite layer 9(and upper and lower surface covers Expanded graphite layer 9 completely, namely comprises the planar section of upper and lower surface and the surface portion of annular boss 11; This Expanded graphite layer 9 well should contact with the sealing surface of upper lower flange, and produces good sealing effect); The surface of contact of described upper flange 5 and lower flange 7 and Expanded graphite metal wave tooth Composition spacer 6 is equipped with annular groove 8, the quantity of described annular groove 8 and annular boss 11, position and shape all match (namely the cross section of described annular groove 8 is semicircle, and the semi-circular cross-section of annular boss 11 matches).
Interlaced layout (namely the annular boss 11 of metal frame 10 upper surface differs half period with the annular boss 11 of lower surface in the frequency occurred) between the multi-ring annular boss 11 of metal frame 10 upper and lower surface of described Expanded graphite metal wave tooth Composition spacer 6.
Described upper flange 5 and lower flange 7 be comprise flange plate 1, cone neck 3 and birdsmouth 4(for connecting tube) integrated formed structure, the sealing surface of described flange plate 1 is plane (namely described sealing surface refers to the face that the flange plate 1 of lower flange contacts); Described flange plate 1 is provided with bolt hole, is fixedly connected with between upper flange 5 and lower flange 7 by bolt 2.
Claims (3)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520056266.8U CN204420390U (en) | 2015-01-27 | 2015-01-27 | A kind of novel flange sealing configuration |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520056266.8U CN204420390U (en) | 2015-01-27 | 2015-01-27 | A kind of novel flange sealing configuration |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204420390U true CN204420390U (en) | 2015-06-24 |
Family
ID=53470760
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520056266.8U Expired - Fee Related CN204420390U (en) | 2015-01-27 | 2015-01-27 | A kind of novel flange sealing configuration |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204420390U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105928669A (en) * | 2016-04-22 | 2016-09-07 | 武汉工程大学 | Flange connection leakage early warning device |
| CN109114346A (en) * | 2018-10-29 | 2019-01-01 | 山东省环能设计院股份有限公司 | A kind of circulating water pipeline internal pressure thrust canceller |
| CN110206885A (en) * | 2019-06-19 | 2019-09-06 | 常熟理工学院 | Self-sealed alloy double bellow seal Composition spacer with inner and outer ring |
| CN112145838A (en) * | 2020-09-01 | 2020-12-29 | 江苏嘉洛德低逸散工程技术有限公司 | Flange static seal low-loss system integrated device and seal installation process |
| CN114542424A (en) * | 2020-11-25 | 2022-05-27 | 安徽威灵汽车部件有限公司 | Pipeline sealing structures, compressors, air conditioning equipment and vehicles |
-
2015
- 2015-01-27 CN CN201520056266.8U patent/CN204420390U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105928669A (en) * | 2016-04-22 | 2016-09-07 | 武汉工程大学 | Flange connection leakage early warning device |
| CN109114346A (en) * | 2018-10-29 | 2019-01-01 | 山东省环能设计院股份有限公司 | A kind of circulating water pipeline internal pressure thrust canceller |
| CN109114346B (en) * | 2018-10-29 | 2024-01-26 | 山东省环能设计院股份有限公司 | Internal pressure thrust counteracting device for circulating water pipeline |
| CN110206885A (en) * | 2019-06-19 | 2019-09-06 | 常熟理工学院 | Self-sealed alloy double bellow seal Composition spacer with inner and outer ring |
| CN112145838A (en) * | 2020-09-01 | 2020-12-29 | 江苏嘉洛德低逸散工程技术有限公司 | Flange static seal low-loss system integrated device and seal installation process |
| CN114542424A (en) * | 2020-11-25 | 2022-05-27 | 安徽威灵汽车部件有限公司 | Pipeline sealing structures, compressors, air conditioning equipment and vehicles |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150624 Termination date: 20170127 |