CN201059400Y - Sealing flange - Google Patents
Sealing flange Download PDFInfo
- Publication number
- CN201059400Y CN201059400Y CNU2007200320486U CN200720032048U CN201059400Y CN 201059400 Y CN201059400 Y CN 201059400Y CN U2007200320486 U CNU2007200320486 U CN U2007200320486U CN 200720032048 U CN200720032048 U CN 200720032048U CN 201059400 Y CN201059400 Y CN 201059400Y
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- CN
- China
- Prior art keywords
- flange
- flange plate
- flanges
- sealing ring
- sealing
- Prior art date
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- Expired - Fee Related
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Abstract
A sealing flange comprises a left flange and a right flange which are matched with each other, and a sealing ring arranged between the left flange and the right flange. A lower end of the connection of the left flange and the right flange is provided with a cavity for mounting the sealing ring, the right flange is made of elastic materials, and the junction surface between the left flange and the right flange has a slope angle of beta degrees. The right flange of the utility model generates elastic deformation and is flattened under action of force, because materials on contact position of the two flanges are deformed, the flanges have better sealing effect; when the flange generates deformation, gap on the inner joint of the two flanges is reduced to the minimum, fluid medium cannot form whirlpool when flows the joint; and the fluid medium does not directly act on the sealing ring, thereby reducing wear of the joint of the flanges and the sealing ring and prolonging service life of the utility model.
Description
Technical field
The utility model relates to a kind of mechanical connecting element flange, is specifically related to a kind of sealing flange.
Background technique
Flange is that the connection of extensive use in the universal machine is one of with component, at machinery, metallurgy, light industry, oil, chemical industry, electric power, traffic, weaving, pharmacy, nuclear energy, boats and ships, to build in the design library part editor and reuses such as worker, boiler tubing, draining and heating and ventilation use very general.It is mainly used in being connected between pipe and pipe fitting, valve, the equipment etc.The normal at present flange that uses is to add sealing gasket between the butt joint plane of two relative flange plate, tights a bolt then with two flange plate compression seals together.Because the distortion behind the sealing gasket pressurized is bigger, be difficult to guarantee the sealing gasket circumference during installation stressed evenly and thickness identical, the uneven thickness of sealing gasket will cause the joint of two flange plate to produce the gap, flowing medium in the pipeline this gap location of flowing through can form eddy current, and then quicken the wearing and tearing of flange plate joint and sealing gasket, cause the leakage of flange connections.And for large-scale bolt flange system of connections (for example the bolt flange used of gas-turbine engine casing top half connects), under the high-pressure work condition, for needs to the junction point high-seal performance that connects with flange between each cylinder, adopt conventional joining method at present, bolt quantity reaches more than 100, not only influenced sealing effect, returned maintenance and bring great inconvenience.In use owing to the fluid characteristics of carrying in the pipeline, the flange joint causes the leakage of conveyance fluid, and influences ordinary production because weeping usually appears in factors such as temperature, pressure, bump, vibration in addition.Particularly in the pipeline of chemical plant normal carry acid, alkali, poisonous, harmful, easily right, explosion hazard gases is once leak, consequence is serious, maintenance bothers, threat operator life safety, even the generation that causes the accident.
Summary of the invention
The purpose of this utility model is to overcome the shortcoming of above-mentioned prior art, the sealing flange that a kind of long service life, good sealing effect is provided and has been convenient to keep in repair.
For achieving the above object, the technical solution adopted in the utility model is: comprise the left and right flanges dish that cooperatively interacts, and be arranged on seal ring between the left and right flanges dish, the lower end at the said left and right flanges dish place of combining offers the cavity of an installation seal ring, right flange plate is made by elastic material, and an angle is arranged between the junction plane of this flange plate and another flange plate is the tilt angle of β.
Seal ring of the present utility model is that the elastic material of O type structure is made, and there is metal frame its inside.
Right flange plate of the present utility model produces resiliently deformable and is driven plain under the effect of power and since the material production of two flange plate contacting points distortion, make flange plate better reach sealing effect; When flange plate produced distortion, it is minimum that the slit at two flange plate internal connection places reduces to, and can not form eddy current when flowing medium is flowed through the joint; And flowing medium does not directly act on the seal ring, has reduced the wearing and tearing of flanged joint place and seal ring, prolongs its working life.
Description of drawings
Fig. 1 is an overall structure schematic representation of the present utility model.
Embodiment
Below in conjunction with accompanying drawing structural principle of the present utility model and working principle are described in further detail.
Referring to Fig. 1, the utility model comprises the left and right flanges dish 1,2 that cooperatively interacts, the lower end at left and right flanges dish 1,2 places of combining offers the cavity of an installation seal ring 3, sealing circle 3 is made for the elastic material of O type structure, there is metal frame its inside, and right flange plate 2 is made by elastic material, and it is the tilt angle of β that an angle is arranged between the junction plane of right flange plate 2 and left flange plate 1.
The utility model is under the power effect, and right flange plate 2 produces resiliently deformables and also is driven plain, and left flange plate 1 be a rigid body, owing to the material production of two flange plate contacting points distortion, make flange plate better reach sealing effect; When right flange plate 2 produced distortion, it is minimum that the slit at two flange plate internal connection places reduces to, and can not form eddy current when flowing medium is flowed through the joint; Flowing medium does not directly act on the seal ring 3, has reduced the wearing and tearing of flanged joint place and seal ring, prolongs its working life; Pressure weakened after flowing medium entered cavity by finedraw, and O-ring seals 3 can play seal action under the effect of its inherent stress.Even the micro fluid medium can pass through seal ring 3, but, can further play seal action because the material deformation of flanged surface makes two flanges in conjunction with closely.Form multi-stage sealed structure, strengthened the sealing effect of flange plate significantly; For large-scale bolt flange system of connections, can also reduce bolt and use number, alleviated flange plate weight, made things convenient for maintenance.
Claims (2)
1. sealing flange, comprise the left and right flanges dish (1,2) that cooperatively interacts, and be arranged on seal ring (3) between left and right flanges dish (1,2), it is characterized in that: the lower end at said left and right flanges dish (1, the 2) place of combining offers the cavity of an installation seal ring (3), right flange plate (2) is made by elastic material, and an angle is arranged between the junction plane of this flange plate and another flange plate is the tilt angle of β.
2. sealing flange according to claim 1 is characterized in that: the elastic material of the O type structure that said seal ring (3) is is made, and there is metal frame its inside.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200320486U CN201059400Y (en) | 2007-06-15 | 2007-06-15 | Sealing flange |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200320486U CN201059400Y (en) | 2007-06-15 | 2007-06-15 | Sealing flange |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201059400Y true CN201059400Y (en) | 2008-05-14 |
Family
ID=39407871
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007200320486U Expired - Fee Related CN201059400Y (en) | 2007-06-15 | 2007-06-15 | Sealing flange |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201059400Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103453252A (en) * | 2013-09-17 | 2013-12-18 | 江阴中南重工股份有限公司 | Flange for pipeline connection |
| CN105065120A (en) * | 2015-07-09 | 2015-11-18 | 中国航空工业集团公司沈阳发动机设计研究所 | Improved heavy duty gas turbine air cylinder |
| CN105465517A (en) * | 2015-12-30 | 2016-04-06 | 中国核电工程有限公司 | Inflation sealing device |
| CN115289111A (en) * | 2022-07-07 | 2022-11-04 | 深圳市科彩精密技术有限公司 | Flange for photovoltaic cell production equipment |
-
2007
- 2007-06-15 CN CNU2007200320486U patent/CN201059400Y/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103453252A (en) * | 2013-09-17 | 2013-12-18 | 江阴中南重工股份有限公司 | Flange for pipeline connection |
| CN105065120A (en) * | 2015-07-09 | 2015-11-18 | 中国航空工业集团公司沈阳发动机设计研究所 | Improved heavy duty gas turbine air cylinder |
| CN105465517A (en) * | 2015-12-30 | 2016-04-06 | 中国核电工程有限公司 | Inflation sealing device |
| CN115289111A (en) * | 2022-07-07 | 2022-11-04 | 深圳市科彩精密技术有限公司 | Flange for photovoltaic cell production equipment |
| CN115289111B (en) * | 2022-07-07 | 2023-08-11 | 深圳市科彩精密技术有限公司 | Flange for photovoltaic cell production equipment |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |