CN206816998U - A kind of high-temperature flange sealing structure - Google Patents
A kind of high-temperature flange sealing structure Download PDFInfo
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- CN206816998U CN206816998U CN201720643658.3U CN201720643658U CN206816998U CN 206816998 U CN206816998 U CN 206816998U CN 201720643658 U CN201720643658 U CN 201720643658U CN 206816998 U CN206816998 U CN 206816998U
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- flange
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- sealing structure
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Abstract
The utility model discloses a kind of high-temperature flange sealing structure,The high-temperature flange sealing structure includes upper shell ring,Lower shell ring,Upper flange is provided with upper shell ring lower end,Lower flange is provided with the upper end of lower shell ring,Fastening screw is provided with upper flange and lower flange,Fastening bolt is provided with fastening screw,Tapered sealing end face is respectively equipped with the butt end of upper shell ring and lower shell ring,Metal lens pad is provided between two tapered sealing end faces,The metal lens pad is hollow metal German-style metal lensring,Annular groove is provided with the inner peripheral surface of metal lens pad,Annular or C-shaped bosh are provided with the inner peripheral surface of flange,Enter hole provided with the cooling water communicated with annular or C-shaped bosh on flange and cooling water portals,The high-temperature flange sealing structure has tolerable temperature height,Good sealing effect,Sealing reliability is high,Advantages of simple structure and simple,The seal request of the larger high temperature pressure vessel of range of temperature can be met.
Description
Technical field
It the utility model is related to a kind of flange sealing structure, especially a kind of flange seal knot for high temperature pressure vessel
Structure.
Background technology
Flange sealing structure is the important feature in pressure vessel, in order to obtain stable sealing in high temperature pressure vessel
Effect, often using metal lens pad and flange combination as high temperature pressure vessel sealing structure.The sealing surface of common metal German-style metal lensring
It is sphere, is in contact with the conical seal (contact) face of pipeline, original state is a loop wire, under pretightning force effect, metal lens pad
Plastic deformation is produced in contact position, loop wire becomes annulus, and its sealing property is preferable.But metal lens pad of the prior art
It is solid pad, solid metal German-style metal lensring is elastic bad at high operating temperatures, and plastic deformation is also easy to produce under pretightning force effect, because
This, when using sealing structure of this solid metal German-style metal lensring as high temperature pressure vessel, easily occurs seal failure.This
Outside, this solid metal German-style metal lensring does not have the effect of self-tightening sealing yet.
Utility model content
Utility model technical problems to be solved are：A kind of high-temperature flange sealing structure, high-temperature flange sealing knot are provided
Structure has tolerable temperature height, good sealing effect, sealing reliability height, advantages of simple structure and simple, can meet range of temperature
The seal request of larger high temperature pressure vessel.
The technical solution adopted for solving the technical problem：A kind of high-temperature flange sealing structure, including upper shell ring, lower shell ring,
Upper flange is provided with upper shell ring lower end, lower flange is provided with the upper end of lower shell ring, fastening spiral shell is provided with upper flange and lower flange
Hole, fastening bolt is provided with fastening screw, tapered sealing end face is respectively equipped with the butt end of upper shell ring and lower shell ring, two
Metal lens pad is provided between tapered sealing end face, the metal lens pad is hollow metal German-style metal lensring, in metal lens pad
Inner peripheral surface is provided with annular groove.
As improvement of the present utility model：The annular groove is made up of circular cross-section inner groove and straight choma seam.
As further improvement of the utility model：Annular or C-shaped bosh, shell ring are provided with the inner peripheral surface of flange
Outer circumference surface by annular or the closing of C-shaped bosh into closed cooling water flow conduits, be provided with flange cold with annular or C-shaped
But the cooling water that tank communicates enters hole and cooling water portals.
Further improved as of the present utility model：The fastening bolt is double end fastening bolt, in the middle part of bolt
85%-the 95% of a diameter of core diameter of thread of light bar segment of non-threaded.
As preferred plan of the present utility model：Positioned at a diameter of core diameter of thread of light bar segment of non-threaded in the middle part of bolt
90%。
Beneficial effect：High-temperature flange sealing structure of the present utility model, as a result of the high-temperature flange sealing structure
Including upper shell ring, lower shell ring, upper flange is provided with upper shell ring lower end, lower flange is provided with the upper end of lower shell ring, in upper flange and
Lower flange is provided with fastening screw, is provided with fastening bolt in fastening screw, is set respectively in the butt end of upper shell ring and lower shell ring
There is tapered sealing end face, metal lens pad is provided between two tapered sealing end faces, the metal lens pad is that hollow metal is saturating
Mirror pad, the technical scheme of annular groove is provided with the inner peripheral surface of metal lens pad, by using hollow metal German-style metal lensring as cylinder
The gasket seal of internode, the hollow metal German-style metal lensring existing plastic deformation flexible deformation again in pretension, therefore, when container temperature
When spending significantly change, hollow metal German-style metal lensring can adapt to two tapered sealing end faces automatically, also, the gases at high pressure inside container enter
Entering the annular groove of metal lens pad can expand outwardly metal lens pad, form self sealss effect, overcome of the prior art
Elasticity is greatly reduced under solid metal German-style metal lensring high temperature, and temperature, which is widely varied, can cause lacking for metal lens pad seal failure
Point, high-temperature flange sealing structure of the present utility model have tolerable temperature height, good sealing effect, sealing reliability height, structure letter
The advantages that single, the seal request of the larger high temperature pressure vessel of range of temperature can be met.As a result of the annular
The technical characteristic that groove is made up of circular cross-section inner groove and straight choma seam, ensureing hollow metal German-style metal lensring with certain elasticity
Meanwhile not only avoid occurring structural weak points in annular groove, and add acting surface of the container internal high-pressure gas to annular groove
Product, makes that the elasticity of hollow metal lens pad in high-temperature flange sealing structure of the present utility model is more preferable, self sealss effect is more preferable, makes
It is longer with the life-span.Annular or C-shaped bosh are provided with as a result of the inner peripheral surface in flange, the outer circumference surface of shell ring will be cold
But tank closing enters hole provided with the cooling water communicated with bosh on flange and cooling water goes out into closed cooling water flow conduits
The technical characteristic in hole, it can effectively reduce the operating temperature of hollow metal German-style metal lensring, flange, shaft, relative increase lens
Pad, the elasticity of stud and the intensity of flange, reduce range of temperature, further reduce influence of the temperature to sealing effectiveness.By
It is double end fastening bolt in employing the fastening bolt, and reasonably defines that the light bar segment of non-threaded is straight in the middle part of the bolt
Footpath and the ratio of core diameter of thread, by suitably reducing the diameter of bolt light rod section, add the resilience of bolt at high operating temperatures
Property, so as to increase the fastening performance of stud, further increase the sealing property of high-temperature flange sealing structure of the present utility model.
High-temperature flange sealing structure of the present utility model can meet 1000 DEG C of Seals for High Pressure Containers requirement.
Brief description of the drawings
High-temperature flange sealing structure of the present utility model is described in further detail below in conjunction with the accompanying drawings.
Fig. 1 is the cross-sectional view of high-temperature flange sealing structure of the present utility model；
Fig. 2 is the structure for amplifying signal of hollow metal lens pad part in high-temperature flange sealing structure of the present utility model
Figure.
Embodiment
As shown in figure 1, high-temperature flange sealing structure of the present utility model, including upper shell ring 8, lower shell ring 1, under upper shell ring
End is provided with upper flange 7, and lower flange 3 is provided with the upper end of lower shell ring, and fastening screw is provided with upper flange and lower flange, is being fastened
Fastening bolt 2 is provided with screw, the fastening bolt is double end fastening bolt, and the light bar segment 21 positioned at non-threaded in the middle part of bolt is straight
Footpath is 85%-the 95% of core diameter of thread, preferably, positioned at a diameter of core diameter of thread of light bar segment of non-threaded in the middle part of bolt
90%.Annular cooling water groove 4 is provided with the inner peripheral surface of flange, when flange and shell ring group postwelding, the outer circumference surface of shell ring will cool down
Tank closing enters hole 6 provided with the cooling water communicated with bosh on flange and cooling water goes out into closed cooling water flow conduits
Hole 9, in order to improve cooling effect, bosh can be processed into C-shaped bosh, setting that cooling water enters hole and cooling water portals
At the both ends of C-shaped bosh, such cooling water flows evenly in bosh, is not in cooling dead angle.
As shown in Fig. 2 it is close that the taper being engaged with metal lens pad is respectively equipped with the butt end of upper shell ring and lower shell ring
End-blocking face（81、11）, metal lens pad 5 is provided between two tapered sealing end faces, the metal lens pad is that hollow metal is saturating
Mirror pad, annular groove is provided with the inner peripheral surface of metal lens pad, the annular groove preferably by circular cross-section inner groove 51 and makes appearance
The straight choma seam 52 that device inner high voltage gas enters circular cross-section inner groove is formed.
In the present embodiment, term position as " on ", " under " has in order to express easily been used, and term position should not be understood
, can be according to reality during high-temperature flange sealing structure of the present utility model is specifically used for limitation of the present utility model
Any changing location is needed to use installation.
Preferred embodiment of the present utility model described in detail above, still, the utility model is not limited to above-mentioned reality
The detail in mode is applied, in range of the technology design of the present utility model, the technical solution of the utility model can be entered
The a variety of simple variants of row, these simple variants belong to the scope of protection of the utility model.
Claims (5)
1. a kind of high-temperature flange sealing structure, including upper shell ring, lower shell ring, upper flange is provided with upper shell ring lower end, in lower shell ring
Upper end be provided with lower flange, on upper flange and lower flange be provided with fastening screw, fastening screw in be provided with fastening bolt, upper
The butt end of shell ring and lower shell ring is respectively equipped with tapered sealing end face, and metal lens pad is provided between two tapered sealing end faces,
The metal lens pad is hollow metal German-style metal lensring, and annular groove is provided with the inner peripheral surface of metal lens pad.
2. high-temperature flange sealing structure according to claim 1, it is characterized in that：The annular groove is by circular cross-section inner groove
Stitch and form with straight choma.
3. high-temperature flange sealing structure according to claim 1, it is characterized in that：Flange inner peripheral surface be provided with annular or
C-shaped bosh, the outer circumference surface of shell ring closes annular or C-shaped bosh into closed cooling water flow conduits, on flange
Enter hole provided with the cooling water communicated with annular or C-shaped bosh and cooling water portals.
4. the high-temperature flange sealing structure according to any one of claims 1 to 3, it is characterized in that：The fastening bolt is double
Head fastening bolt, positioned at 85% -95% of a diameter of core diameter of thread of light bar segment of non-threaded in the middle part of bolt.
5. high-temperature flange sealing structure according to claim 4, it is characterized in that：Positioned at the light bar segment of non-threaded in the middle part of bolt
The 90% of a diameter of core diameter of thread.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720643658.3U CN206816998U (en) | 2017-06-06 | 2017-06-06 | A kind of high-temperature flange sealing structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720643658.3U CN206816998U (en) | 2017-06-06 | 2017-06-06 | A kind of high-temperature flange sealing structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206816998U true CN206816998U (en) | 2017-12-29 |
Family
ID=60758992
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720643658.3U Active CN206816998U (en) | 2017-06-06 | 2017-06-06 | A kind of high-temperature flange sealing structure |
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| Country | Link |
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| CN (1) | CN206816998U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108679223A (en) * | 2018-07-12 | 2018-10-19 | 苏州大学张家港工业技术研究院 | Pressure vessel |
| CN110469733A (en) * | 2019-08-09 | 2019-11-19 | 西安航天动力研究所 | A kind of flange sealing structure and its installation method suitable for the big hot-fluid environment of high temperature |
| CN112963639A (en) * | 2021-04-19 | 2021-06-15 | 大连理工大学 | High low temperature high pressure flange connection interface flexible self-locking sealing device |
| CN113266717A (en) * | 2021-04-01 | 2021-08-17 | 常州市武进第二法兰锻造有限公司 | Improved high-temperature-resistant pressure flange and preparation method thereof |
-
2017
- 2017-06-06 CN CN201720643658.3U patent/CN206816998U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108679223A (en) * | 2018-07-12 | 2018-10-19 | 苏州大学张家港工业技术研究院 | Pressure vessel |
| CN110469733A (en) * | 2019-08-09 | 2019-11-19 | 西安航天动力研究所 | A kind of flange sealing structure and its installation method suitable for the big hot-fluid environment of high temperature |
| CN113266717A (en) * | 2021-04-01 | 2021-08-17 | 常州市武进第二法兰锻造有限公司 | Improved high-temperature-resistant pressure flange and preparation method thereof |
| CN113266717B (en) * | 2021-04-01 | 2022-03-22 | 常州市武进第二法兰锻造有限公司 | Improved high-temperature-resistant pressure flange and preparation method thereof |
| CN112963639A (en) * | 2021-04-19 | 2021-06-15 | 大连理工大学 | High low temperature high pressure flange connection interface flexible self-locking sealing device |
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