CN104214451A - Sealing flange - Google Patents
Sealing flange Download PDFInfo
- Publication number
- CN104214451A CN104214451A CN201410491265.6A CN201410491265A CN104214451A CN 104214451 A CN104214451 A CN 104214451A CN 201410491265 A CN201410491265 A CN 201410491265A CN 104214451 A CN104214451 A CN 104214451A
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- CN
- China
- Prior art keywords
- flange
- flange plate
- seal ring
- plate
- sealing
- 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
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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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Gasket Seals (AREA)
Abstract
The invention discloses a sealing flange, which comprises a first flange plate and a second flange plate, wherein the first flange plate and the second flange plate are matched with each other, a flange gasket is arranged between the first flange plate and the second flange plate, the first flange plate and the second flange plate are fastened and connected through at least two screw bolts, and mutually engaged sealing rings are respectively arranged on connecting surfaces of the first flange plate and the second flange plate. Compared with the prior art, the sealing flange has the beneficial effect that when the screw bolts are not locked to the maximum degree, or when the looseness is generated between the flange plates due to mechanical vibration, good sealing performance can still be maintained between the flange plates.
Description
Technical field
The present invention relates to a kind of sealing flange.
Background technique
Flange is again flange plate or bead.Flange be make pipe and pipe or and the interconnective part of valve, be connected in pipe end.Perforation on flange, bolt is close to two flanges.Between flange, with liner, seal.Flange divides be threaded flange and welded flange and cutting ferrule flange.
Flange is the blue flange disk of call again.Flange is interconnective part between pipe and pipe, for the connection between pipe end; Also the flange that has the equipment that is used in to import and export, for the connection between two equipment, as speed reducer flange.Flange connects or flanged joint, refers to by flange, pad and bolt three and interconnects the releasable connection as one group of combined sealing structure.Piping flange means the flange that in tube equipment, pipe arrangement is used, and is used in the import and export flange that means equipment on equipment.Perforation on flange, bolt is close to two flanges.Between flange, with liner, seal.Flange divides the flange that is threaded, welded flange and clip flange.Flange is all to use in pairs, and low pressure pipeline can be used an acting flange, four kilograms of use welded flanges with upward pressure.Between two flange plate, add sealing gasket, then use bolton.The flange thickness of different pressures is different, and the bolt quantity that they use is also different.
It is exactly two pipelines, pipe fitting or equipment that flange connects, and is first fixed on separately on a flange plate, between two flange plate, adds flange gasket, by bolton together, has completed connection.Some pipe fittings and equipment have carried flange plate, are also to belong to flange to connect.It is the important Placement of pipeline construction that flange connects.Flange connects easy to use, can bear larger pressure.In industrial pipeline, the use that flange connects is very extensive, the foundation engineerings such as chemical industry, building, feedwater, draining, oil, weight are industrial, freezing, health, hot-water heating, fire-fighting, electric power, space flight, shipbuilding that it is widely used in.
Existing flanged connecting structure for to add flange gasket, then by two flange plate by bolton together between two flange plate.Owing to being separate between flange gasket and flange plate, so bolt is not while being locked at utmost, between two flange plate, do not reach good sealing; In addition; In use have mechanical vibration, the time grown between flange, will produce loosening, if lock bolt not in time will cause sealing to decline.
Summary of the invention
The problems referred to above that the present invention need to solve are for above-mentioned the deficiencies in the prior art, even and if provide a kind of when bolt is not locked at utmost, or because mechanical vibration cause between flange plate when loosening, still there is the sealing flange of good sealing.
For solving the problems of the technologies described above, the technical solution used in the present invention is:
A kind of sealing flange, comprise the first flange plate and the second flange plate that cooperatively interact, between the first flange plate and the second flange plate, be provided with flange gasket, the first flange plate is connected by least two bolton with the second flange plate, is respectively equipped with the seal ring of mutual interlock on the first described flange plate and the junction surface of the second flange plate.
As the preferred technical solution of the present invention, the material of described seal ring is asbestos packing sheet, tetrafluoro plate or polyethylene board.
As the preferred technical solution of the present invention, the occlusal cross section of described seal ring is flexuose.
As the preferred technical solution of the present invention, the occlusal cross section of described seal ring is stepped.
As the preferred technical solution of the present invention, the occlusal cross section of the seal ring on the first described flange plate is convex, and the occlusal cross section of the seal ring on the second described flange plate is concavity.
As the preferred technical solution of the present invention, the quantity of described bolt is three.
As the preferred technical solution of the present invention, the internal diameter of described seal ring is greater than the diameter of the first flange plate through hole and the diameter of the second flange plate through hole.
Compared with prior art, the invention has the beneficial effects as follows:
1, between the first flange plate and the second flange plate, be provided with flange gasket, also on the junction surface of the first flange plate and the second flange plate, be respectively equipped with the seal ring of mutual interlock, for keeping good tightness that twice guarantee is provided, can be when bolt be locked at utmost, or because mechanical vibration cause between flange plate when loosening, still having good sealing.
2, the material of seal ring adopts asbestos packing sheet, tetrafluoro plate or polyethylene board, these materials have has very good moulding deformability, what have has good heat-resisting quantity and a lower temperature resistance, what have has a good corrosion resistance, can select suitable seal ring material according to concrete installation requirements.
3, the occlusal cross section of seal ring is flexuose, makes the occlusal surface between upper and lower two seal rings reach better sealing effect.
4, the occlusal cross section of seal ring is stepped, makes the occlusal surface between upper and lower two seal rings reach better sealing effect.
5, the occlusal cross section of the seal ring on the first flange plate is convex, and the occlusal cross section of the seal ring on the second flange plate is concavity, makes the occlusal surface between upper and lower two seal rings reach better sealing effect.
6, the quantity of bolt is three, and what make that the coupling mechanism force of bolt distributes is more even.
7, the internal diameter of seal ring is greater than the diameter of the first flange plate through hole and the diameter of the second flange plate through hole, prevents that seal ring from affecting the aperture of the through hole of the first flange plate and the second flange plate.
Accompanying drawing explanation
Fig. 1 is the structural representation of sealing flange of the present invention;
Fig. 2 is the first mode of execution schematic diagram of seal ring;
Fig. 3 is the second mode of execution schematic diagram of seal ring;
Fig. 4 is the third mode of execution schematic diagram of seal ring.
Wherein, the 1, first flange plate, the 2, second flange plate, 3, bolt, 4, seal ring.
Embodiment
In conjunction with the accompanying drawings, the present invention is further detailed explanation.These accompanying drawings are the schematic diagram of simplification, basic structure of the present invention is only described in a schematic way, so it only show the formation relevant with the present invention.
As Figure 1-4, a kind of sealing flange, comprise the first flange plate 1 and the second flange plate 2 that cooperatively interact, between the first flange plate 1 and the second flange plate 2, be provided with flange gasket, the first flange plate 1 and the second flange plate 2 are fastenedly connected by least two bolts 3, are respectively equipped with the seal ring 4 of mutual interlock on the first described flange plate 1 and the junction surface of the second flange plate 2.
As the preferred technical solution of the present invention, the material of described seal ring 4 is asbestos packing sheet, tetrafluoro plate or polyethylene board.
As the preferred technical solution of the present invention, the occlusal cross section of described seal ring 4 is flexuose.
As the preferred technical solution of the present invention, the occlusal cross section of described seal ring 4 is stepped.
As the preferred technical solution of the present invention, the occlusal cross section of the seal ring 4 on the first described flange plate 1 is convex, and the occlusal cross section of the seal ring 4 on the second described flange plate 2 is concavity.
As the preferred technical solution of the present invention, the quantity of described bolt 3 is three.
As the preferred technical solution of the present invention, the internal diameter of described seal ring 4 is greater than the diameter of the first flange plate 1 through hole and the diameter of the second flange plate 2 through holes.
Compared with prior art, the invention has the beneficial effects as follows:
1, between the first flange plate and the second flange plate, be provided with flange gasket, also on the junction surface of the first flange plate and the second flange plate, be respectively equipped with the seal ring of mutual interlock, for keeping good tightness that twice guarantee is provided, can be when bolt be locked at utmost, or because mechanical vibration cause between flange plate when loosening, still having good sealing.
2, the material of seal ring adopts asbestos packing sheet, tetrafluoro plate or polyethylene board, these materials have has very good moulding deformability, what have has good heat-resisting quantity and a lower temperature resistance, what have has a good corrosion resistance, can select suitable seal ring material according to concrete installation requirements.
3, the occlusal cross section of seal ring is flexuose, makes the occlusal surface between upper and lower two seal rings reach better sealing effect.
4, the occlusal cross section of seal ring is stepped, makes the occlusal surface between upper and lower two seal rings reach better sealing effect.
5, the occlusal cross section of the seal ring on the first flange plate is convex, and the occlusal cross section of the seal ring on the second flange plate is concavity, makes the occlusal surface between upper and lower two seal rings reach better sealing effect.
6, the quantity of bolt is three, and what make that the coupling mechanism force of bolt distributes is more even.
7, the internal diameter of seal ring is greater than the diameter of the first flange plate through hole and the diameter of the second flange plate through hole, prevents that seal ring from affecting the aperture of the through hole of the first flange plate and the second flange plate.
The above-mentioned foundation desirable embodiment of the present invention of take is enlightenment, and by above-mentioned description, relevant staff can, within not departing from the scope of this invention technological thought, carry out various change and modification completely.The technical scope of this invention is not limited to the content on specification, must determine its technical scope according to claim scope.
Claims (7)
1. a sealing flange, comprise the first flange plate and the second flange plate that cooperatively interact, between the first flange plate and the second flange plate, be provided with flange gasket, the first flange plate is connected by least two bolton with the second flange plate, it is characterized in that: the seal ring that is respectively equipped with mutual interlock on the first described flange plate and the junction surface of the second flange plate.
2. sealing flange according to claim 1, is characterized in that: the material of described seal ring is asbestos packing sheet, tetrafluoro plate or polyethylene board.
3. sealing flange according to claim 1, is characterized in that: the occlusal cross section of described seal ring is flexuose.
4. sealing flange according to claim 1, is characterized in that: the occlusal cross section of described seal ring is stepped.
5. sealing flange according to claim 1, is characterized in that: the occlusal cross section of the seal ring on the first described flange plate is convex, and the occlusal cross section of the seal ring on the second described flange plate is concavity.
6. sealing flange according to claim 1, is characterized in that: the quantity of described bolt is three.
7. sealing flange according to claim 1, is characterized in that: the internal diameter of described seal ring is greater than the diameter of the first flange plate through hole and the diameter of the second flange plate through hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410491265.6A CN104214451A (en) | 2014-09-24 | 2014-09-24 | Sealing flange |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410491265.6A CN104214451A (en) | 2014-09-24 | 2014-09-24 | Sealing flange |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104214451A true CN104214451A (en) | 2014-12-17 |
Family
ID=52096223
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410491265.6A Pending CN104214451A (en) | 2014-09-24 | 2014-09-24 | Sealing flange |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104214451A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1268633A (en) * | 1968-04-05 | 1972-03-29 | Robert Ford | Improvements in or relating to gaskets |
| US4441725A (en) * | 1982-04-09 | 1984-04-10 | Thornhill Craver Company | Quad bolt |
| DE8802972U1 (en) * | 1988-03-05 | 1988-04-14 | Teadit-Produktionsgesellschaft mbH, Kirchdorf | Sealing kit, especially for flange connections |
| GB2413606A (en) * | 2004-04-29 | 2005-11-02 | Spm Flow Control Inc | Clamped pipe connector seal arrangement |
| CN102650358A (en) * | 2011-02-23 | 2012-08-29 | 江苏吉星管业科技有限公司 | Concave-convex annular spacing sealing structure with flanges |
-
2014
- 2014-09-24 CN CN201410491265.6A patent/CN104214451A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1268633A (en) * | 1968-04-05 | 1972-03-29 | Robert Ford | Improvements in or relating to gaskets |
| US4441725A (en) * | 1982-04-09 | 1984-04-10 | Thornhill Craver Company | Quad bolt |
| DE8802972U1 (en) * | 1988-03-05 | 1988-04-14 | Teadit-Produktionsgesellschaft mbH, Kirchdorf | Sealing kit, especially for flange connections |
| GB2413606A (en) * | 2004-04-29 | 2005-11-02 | Spm Flow Control Inc | Clamped pipe connector seal arrangement |
| CN102650358A (en) * | 2011-02-23 | 2012-08-29 | 江苏吉星管业科技有限公司 | Concave-convex annular spacing sealing structure with flanges |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20141217 |