CN202381879U - Flange connection structure for preventing high-temperature stress relaxation - Google Patents
Flange connection structure for preventing high-temperature stress relaxation Download PDFInfo
- Publication number
- CN202381879U CN202381879U CN2011205035475U CN201120503547U CN202381879U CN 202381879 U CN202381879 U CN 202381879U CN 2011205035475 U CN2011205035475 U CN 2011205035475U CN 201120503547 U CN201120503547 U CN 201120503547U CN 202381879 U CN202381879 U CN 202381879U
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- China
- Prior art keywords
- flange
- stress relaxation
- temperature stress
- connection structure
- packing ring
- 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 - Lifetime
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Abstract
The utility model discloses a flange connection structure for preventing high-temperature stress relaxation, designed in order to enhance sealing performance of the flange connection structure, that is arranging an elastic keep gasket between a flange and a nut; the gasket provides and keeps enough sealing ratio pressure for connecting a flange bolt by elastic keep force so as to prevent the flange bolt from generating seal leakage caused by high-temperature stress relaxation, greatly prolong operation cycle of an oxidation furnace reactor, and increase operation reliability of the oxidation furnace reactor.
Description
Technical field
The utility model relates to a kind of flanged connecting structure of anti-high-temperature stress relaxation, belongs to the petroleum works field of mechanical technique.
Background technique
Add in the hot work in oil field development and produce oil, flanged connecting structure is the mechanical connection equipment that is in daily use, and whether the high-quality of its performance can produce directly influence to Petroleum Production and transportation thereof.
Summary of the invention
The purpose of the utility model is to provide a kind of flanged connecting structure of anti-high-temperature stress relaxation, and it can avoid flange bolt to connect the seal leakage problem that produces because of the oxidation furnace high-temperature stress relaxation.
The concrete technology contents of the utility model is following:
The flanged connecting structure of anti-high-temperature stress relaxation comprises that stud, elasticity keep packing ring, flange seal packing ring, flange and nut.
Elasticity keeps packing ring (2) to be located between flange (4) and the nut (5), and flange seal packing ring (3) is located between the connected flange (4).
The utility model has increased elasticity and has kept packing ring between connected flange and nut; This packing ring can provide and keeps enough seal pressure power with its elasticity confining force for flange bolt connects; Avoid the flange bolt connection to make the generation seal leakage because of high-temperature stress relaxation; Prolong the operation period of oxidation furnace reactor significantly, improve oxidation furnace reactor reliability of operation.
Description of drawings
Fig. 1 is the flanged connecting structure schematic representation of anti-high-temperature stress relaxation.
Fig. 2,3 and 4 schematic cross-sections for elasticity maintenance packing ring.
Embodiment
Embodiment:
Extremely the embodiment of the utility model is further specified with reference to accompanying drawing:
The elasticity of the flanged connecting structure of anti-high-temperature stress relaxation keeps packing ring 2 to be located between flange 4 and the nut 5, and nut 5 is connected with stud 1.Flange seal packing ring 3 is located between the connected flange 4.
Elasticity keeps the sectional shape of packing ring 2 to can be butterfly, convex, taper etc.
The utility model all is suitable in other various flanged connecting structures that have stress relaxation to be inclined to.
Claims (1)
1. the flanged connecting structure of an anti-high-temperature stress relaxation comprises stud (1), elasticity maintenance packing ring (2), flange seal packing ring (3), flange (4), nut (5), it is characterized in that:
Elasticity keeps packing ring (2) to be located between flange (4) and the nut (5), and flange seal packing ring (3) is located at by between the adpting flange (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011205035475U CN202381879U (en) | 2011-12-06 | 2011-12-06 | Flange connection structure for preventing high-temperature stress relaxation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011205035475U CN202381879U (en) | 2011-12-06 | 2011-12-06 | Flange connection structure for preventing high-temperature stress relaxation |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202381879U true CN202381879U (en) | 2012-08-15 |
Family
ID=46630382
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011205035475U Expired - Lifetime CN202381879U (en) | 2011-12-06 | 2011-12-06 | Flange connection structure for preventing high-temperature stress relaxation |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202381879U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106644420A (en) * | 2016-06-16 | 2017-05-10 | 北京宇航系统工程研究所 | Testing apparatus for stress relaxation of metal sealing ring flange connecting structure |
-
2011
- 2011-12-06 CN CN2011205035475U patent/CN202381879U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106644420A (en) * | 2016-06-16 | 2017-05-10 | 北京宇航系统工程研究所 | Testing apparatus for stress relaxation of metal sealing ring flange connecting structure |
| CN106644420B (en) * | 2016-06-16 | 2018-11-02 | 北京宇航系统工程研究所 | A kind of metal o-ring flange connection stress relaxation test device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20120815 |