CN109237167A - A kind of flange sealing structure - Google Patents
A kind of flange sealing structure Download PDFInfo
- Publication number
- CN109237167A CN109237167A CN201811311239.5A CN201811311239A CN109237167A CN 109237167 A CN109237167 A CN 109237167A CN 201811311239 A CN201811311239 A CN 201811311239A CN 109237167 A CN109237167 A CN 109237167A
- Authority
- CN
- China
- Prior art keywords
- flange
- gasket
- sealing structure
- groove
- structure according
- 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.)
- Granted
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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
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L23/00—Flanged joints
- F16L23/16—Flanged joints characterised by the sealing means
- F16L23/18—Flanged joints characterised by the sealing means the sealing means being rings
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- 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
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L23/00—Flanged joints
- F16L23/02—Flanged joints the flanges being connected by members tensioned axially
- F16L23/032—Flanged joints the flanges being connected by members tensioned axially characterised by the shape or composition of the flanges
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- 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
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L23/00—Flanged joints
- F16L23/16—Flanged joints characterised by the sealing means
- F16L23/18—Flanged joints characterised by the sealing means the sealing means being rings
- F16L23/22—Flanged joints characterised by the sealing means the sealing means being rings made exclusively of a material other than metal
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Gasket Seals (AREA)
Abstract
本发明属于连接密封技术，具体涉及一种法兰密封结构。所述法兰密封结构包括第一法兰(2)、密封垫(3)以及第二法兰(4)。其中，第一法兰(2)和第二法兰(4)一端分别设置在两个管路上，另一端夹持密封垫并通过螺栓连接密封，其中，所述密封垫(3)嵌设在第一法兰(2)的凹槽内。本发明法兰密封结构通过将密封垫嵌设在凹槽中，可以保证飞机高温管路法兰对接处良好的气密性，防止密封垫因受热气吹拂变形并且局部被吹出安装位置导致管路气体泄漏，而且密封垫采用近似梅花形截面，在有螺栓连接的情况下受力情况更好。此外，对于飞机上采用传统平法兰结构形式连接的情况，采用此种法兰密封结构更容易贯改执行，降低贯改难度和成本。
The invention belongs to the connection sealing technology, in particular to a flange sealing structure. The flange sealing structure includes a first flange (2), a gasket (3) and a second flange (4). Wherein, one end of the first flange (2) and the second flange (4) are respectively arranged on the two pipelines, and the other end clamps a gasket and is sealed by bolt connection, wherein the gasket (3) is embedded in the in the groove of the first flange (2). By embedding the gasket in the groove, the flange sealing structure of the invention can ensure good air tightness at the butt joint of the high-temperature pipeline of the aircraft, and prevent the gasket from being deformed by the hot air and partially blown out of the installation position, causing the pipeline to be blown out. Gas leakage, and the gasket adopts an approximate plum-shaped section, which is better under the condition of bolted connection. In addition, for the case where the traditional flat flange structure is used for connection on the aircraft, the use of this flange sealing structure is easier to implement and implement, reducing the difficulty and cost of the implementation.
Description
Technical field
The invention belongs to connect sealing technique, and in particular to a kind of flange sealing structure.
Background technique
Flanged joint is a kind of common pipeline mechanical connection manner, in practical application, flanged joint also needs to carry out
Sealing, as that it is usually necessary to use flanges at pipeline joint and check valve and pipeline installation place in plane environmental control system is close
Seal structure form is attached.Conventional flange arrangement is generally flat flange, when being used for high temperature conduit, due to gasket
Though being high-temperature resistant rubber class material, gasket is locally still possibly blown out flange corresponding position in system work process, leads
Pipeline gas leakage is caused, causes heat radiation to influence contiguous structure, equipment etc., influences the normal work of system, there are certain safety
Hidden danger.
Summary of the invention
The object of the present invention is to provide a kind of structure is simple, securely and reliably, the good flange seal knot of elevated-temperature seal performance
Structure.
The technical scheme is that a kind of flange sealing structure comprising first flange 2, gasket 3 and the second method
Orchid 4, wherein first flange 2 and 4 one end of second flange are separately positioned on two pipelines, and other end grip seal pad simultaneously passes through
It is bolted sealing, wherein the gasket is embedded in the groove of first flange 2.
3 outer rim of gasket is class plum-type structure.
There are two symmetrical openings, 3 corresponding site of gasket to be embedded in the opening for setting on the groove of the first flange 2
On.
The second flange is flat flange.
The groove for gasket installation identical with first flange groove is provided in the second flange.
Gasket 3 is high-temperature resistant rubber material.
The gasket 3 is mounted between first flange and second flange, and there are certain thickness surplus, avoids first
Flange and second flange directly contact.
A kind of flange sealing structure includes first flange 2, flanged (FLGD) check valve, second flange 4 and two sealings
Pad, wherein first flange 2 and 4 one end of second flange are separately positioned on two pipelines, and the other end is provided with for gasket
The groove of installation, two gaskets are separately positioned in two flange grooves, and are held and mounted on flanged (FLGD) check valve two
Side.
The flange of the check valve is flat flange or at least side is provided with the groove knot that can install gasket
Structure.
The solution have the advantages that: flange sealing structure of the present invention is by the way that gasket to be embedded in a groove, Ke Yibao
Good air-tightness at the flange docking of aircraft high temperature conduit is demonstrate,proved, prevents gasket because deformation is stroked in heated air-blowing and is locally blown out
Installation site causes pipeline gas to leak, and gasket is using approximate plum blossom tee section, in the case where being bolted by
Power better off.In addition, the case where on aircraft using traditional plane face flange structure type connection, using such flange seal knot
Structure, which is easier to pass through, changes execution, and reduction, which is passed through, changes difficulty and cost.
Detailed description of the invention
Fig. 1 is the parts explosion of flange sealing structure first embodiment of the present invention；
Fig. 2 is the structural schematic diagram with groove flange；
Fig. 3 is the structural schematic diagram of gasket；
Fig. 4 is the structural schematic diagram of plane face flange,
Wherein: 1-pipeline；2-first flanges, 3-gaskets, 4-second flanges, 5-bolts, nut, gasket assembly,
6-pipelines.
Specific embodiment
It is further described with reference to the accompanying drawings and examples:
Referring to Fig. 1, it is the flange sealing structure parts explosion of first embodiment of the invention.Present embodiment
In, the flange sealing structure includes first flange 2, gasket 3 and second flange 4.Wherein, first flange 2 and the second method
Blue 4 one end are separately positioned on two pipelines, and simultaneously sealing is bolted in other end grip seal pad, wherein the sealing
Pad is embedded in the groove of first flange 2.
Referring to Fig. 2, the groove inner edge of the first flange 2 is that class is quincunx, and is arranged there are two symmetrical openings, seal
It pads 3 corresponding sites to be embedded in the opening, such sealing structure can prevent gasket part by thermal current blowout peace in pipeline
Holding position causes pipeline gas to leak, and can anti-stop-band tongue flange and other side plane face flange directly contact Hard link, cause
Pipeline gas leakage, in addition above-mentioned aperture position can be adjusted according to manufacturing or actually using demand, as long as guaranteeing sealing effect
Fruit.
In addition, the second flange is that flat flange or inside are also equipped be used for identical with first flange groove
The groove of gasket installation, to further increase sealing performance.
The gasket 3 is high-temperature resistant rubber material, and outer rim is class plum-type structure, to match with groove inner edge.Institute
Gasket 3 is stated with enough thickness, is mounted between first flange and second flange, and there are certain thickness surplus,
So as to avoid first flange and second flange from directly contacting firmly.
In another embodiment of the present invention, structure is similar in first embodiment.The flange sealing structure includes the
One flange 2, flanged (FLGD) check valve, second flange 4 and two gaskets, wherein first flange 2 and second flange 4 one
End is separately positioned on two pipelines, and the other end is provided with the groove for gasket installation, and two gaskets are respectively set
In two flange grooves, and it is held and mounted on flanged (FLGD) check valve two sides.After gasket thickness requirement installation simultaneously still
With certain thickness surplus, avoid valve flange with directly contacted firmly between first flange and second flange.The unidirectional work
The flange of door can be flat flange or at least side is provided with the groove knot that can install gasket according to actual needs
Structure.Therefore flange sealing structure of the present invention is readily applicable to valve sealing, effectively solves gas caused by gasket temperature distortion
Body leakage problem, and occupancy arrangement space is small, has larger practical application value.
Claims (9)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811311239.5A CN109237167B (en) | 2018-11-05 | 2018-11-05 | Flange sealing structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811311239.5A CN109237167B (en) | 2018-11-05 | 2018-11-05 | Flange sealing structure |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109237167A true CN109237167A (en) | 2019-01-18 |
| CN109237167B CN109237167B (en) | 2021-05-07 |
Family
ID=65076977
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811311239.5A Active CN109237167B (en) | 2018-11-05 | 2018-11-05 | Flange sealing structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109237167B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112495128A (en) * | 2019-10-10 | 2021-03-16 | 人民电器集团上海有限公司 | Waste gas recovery processing apparatus of electrolytic copper production |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2859052A (en) * | 1954-11-17 | 1958-11-04 | Western Electric Co | Coupling with flange aligning means |
| JPH05248578A (en) * | 1991-04-18 | 1993-09-24 | Anelva Corp | Vacuum seal gasket |
| US20030030229A1 (en) * | 2001-07-26 | 2003-02-13 | Westinghouse Air Brake Company | Gasket for pressurized fluid system |
| CN203375026U (en) * | 2013-06-21 | 2014-01-01 | 张家港华日法兰有限公司 | Novel flange plate component |
| CN104565614A (en) * | 2014-12-22 | 2015-04-29 | 洛阳能源密封件有限公司 | Flange and sealing ring structure with multiplex pressure-resistant structures |
| CN204611153U (en) * | 2015-02-03 | 2015-09-02 | 曲靖众一精细化工股份有限公司 | A kind of flange sealing structure that effectively can reduce leak-down rate |
| CN206496046U (en) * | 2017-03-06 | 2017-09-15 | 西安飞豹科技有限公司 | A kind of check valve of error-preventive design |
-
2018
- 2018-11-05 CN CN201811311239.5A patent/CN109237167B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2859052A (en) * | 1954-11-17 | 1958-11-04 | Western Electric Co | Coupling with flange aligning means |
| JPH05248578A (en) * | 1991-04-18 | 1993-09-24 | Anelva Corp | Vacuum seal gasket |
| US20030030229A1 (en) * | 2001-07-26 | 2003-02-13 | Westinghouse Air Brake Company | Gasket for pressurized fluid system |
| CN203375026U (en) * | 2013-06-21 | 2014-01-01 | 张家港华日法兰有限公司 | Novel flange plate component |
| CN104565614A (en) * | 2014-12-22 | 2015-04-29 | 洛阳能源密封件有限公司 | Flange and sealing ring structure with multiplex pressure-resistant structures |
| CN204611153U (en) * | 2015-02-03 | 2015-09-02 | 曲靖众一精细化工股份有限公司 | A kind of flange sealing structure that effectively can reduce leak-down rate |
| CN206496046U (en) * | 2017-03-06 | 2017-09-15 | 西安飞豹科技有限公司 | A kind of check valve of error-preventive design |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112495128A (en) * | 2019-10-10 | 2021-03-16 | 人民电器集团上海有限公司 | Waste gas recovery processing apparatus of electrolytic copper production |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109237167B (en) | 2021-05-07 |
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