CN204042304U - A kind of sleeve expansion joint - Google Patents
A kind of sleeve expansion joint Download PDFInfo
- Publication number
- CN204042304U CN204042304U CN201420443945.6U CN201420443945U CN204042304U CN 204042304 U CN204042304 U CN 204042304U CN 201420443945 U CN201420443945 U CN 201420443945U CN 204042304 U CN204042304 U CN 204042304U
- Authority
- CN
- China
- Prior art keywords
- sleeve
- outer sleeve
- shoulder
- expansion joint
- diameter tube
- 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 - Fee Related
Links
Abstract
The utility model discloses a kind of sleeve expansion joint, comprise inner sleeve, outer sleeve, supported flange, stuffing box packing, diameter tube, described inner sleeve is sheathed in outer sleeve, and described diameter tube and outer sleeve end are fixed; Described inner sleeve is provided with the first shoulder, and the first shoulder outer surface and outer sleeve inner surface closely cooperate, and inner sleeve end props up diameter tube; Be filled with a sealing between outer sleeve and inner sleeve gap filler, and stuffing box packing end supported flange seals, and preferably stuffing box packing is graphite, and described supported flange is fixed by bolt and outer sleeve.Structure is simple, only needs inside and outside sleeve pipe and supported flange just to complete the sealing configuration of whole sleeve expansion joint, is easy to forge shaping, forging, except saving machining man-hour, also saves raw material, the most important thing is that intensity is secure, without tiny component, overall tightness is good, and wear-resistant degree is high.
Description
Technical field
The utility model relates to a kind of pipe line compensating device.
Background technique
Additionally arranging the axial thermal expansion displacement absorption compensation of rear appearance for rectilinear duct, is the compensator among a kind of pipeline being directly installed on the free from corrosion unidirectional or multidirectional fluid of any conveying.Slip-type expansion joint is widely used in the conveyance conduit of the industries such as cities and towns heating, metallurgy, mine, generating, petrochemical industry, building, is the compensation device of hot fluid pipeline.
Existing sleeve expansion joint component are various, easily occur damaging and leaking, often need demolition and maintenance, not only bother, also affect pipeline and normally run.
Summary of the invention
The utility model provides a kind of sleeve expansion joint to solve deficiency of the prior art, and structure is simple, reasonable in design, good airproof performance.
For achieving the above object, the technical solution adopted in the utility model is:
A kind of sleeve expansion joint, comprise inner sleeve, outer sleeve, supported flange, stuffing box packing, diameter tube, described inner sleeve is sheathed in outer sleeve, and described diameter tube and outer sleeve end are fixed; Described inner sleeve is provided with the first shoulder, and the first shoulder outer surface and outer sleeve inner surface closely cooperate, and inner sleeve end props up diameter tube; Be filled with a sealing between outer sleeve and inner sleeve gap filler, and stuffing box packing end supported flange seals, and preferably stuffing box packing is graphite, and described supported flange is fixed by bolt and outer sleeve.Structure is simple, only needs inside and outside sleeve pipe and supported flange just to complete the sealing configuration of whole sleeve expansion joint, is easy to forge shaping, forging, except saving machining man-hour, also saves raw material, the most important thing is that intensity is secure, without tiny component, overall tightness is good, and wear-resistant degree is high.
As a kind of preferred version of sleeve expansion joint described in the utility model, described diameter tube and outer sleeve end are welded and fixed.
As a kind of preferred version of sleeve expansion joint described in the utility model, the first described shoulder is swallow-tail form, outer sleeve inner wall corresponding position is provided with the second supporting shoulder, the second described shoulder and the first shoulder closely cooperate formation enclosed construction, further raising sealing reliability, improves compensator withstand voltage properties further.
Beneficial effect:
Sleeve expansion joint described in the utility model is easy to forge shaping, and forging is except saving machining man-hour, and also save raw material, the most important thing is that intensity is secure, without tiny component, overall tightness is good, and wear-resistant degree is high; Second shoulder and the first shoulder closely cooperate formation enclosed construction, improve sealing reliability further, improve compensator withstand voltage properties further.
Accompanying drawing explanation
Fig. 1 is a kind of sleeve expansion joint structural representation described in the utility model.
Fig. 2 is another kind of sleeve expansion joint structural representation.
Wherein: 1, inner sleeve 2, outer sleeve 3, supported flange 4, graphite 5, diameter tube 6, first shoulder 7, second shoulder
Embodiment
Below in conjunction with the drawings and specific embodiments, the utility model is described in further detail.
Embodiment
As shown in Figure 1, a kind of sleeve expansion joint, comprise inner sleeve 1, outer sleeve 2, supported flange 3, stuffing box packing 4, diameter tube 5, inner sleeve 1 is sheathed in outer sleeve 2.Diameter tube 5 and outer sleeve 2 end are welded and fixed, inner sleeve 1 is provided with the first shoulder 6, first shoulder 6 cross section is rectangular, outer surface and outer sleeve 2 internal surface closely cooperate, and inner sleeve 1 end props up diameter tube 5, fills graphite 4 between outer sleeve and inner sleeve gap, graphite-filled end supported flange 3 seals, described supported flange 3 is fixed by bolt and outer sleeve, after graphite loosens to some extent after using after a while, can strengthen compensator sealing by screwing bolts.
In fig. 2, the first shoulder 6 is in swallow-tail form, and outer sleeve inner wall corresponding position is provided with the second supporting shoulder 7, second shoulder 7 and the first shoulder 6 and closely cooperates formation enclosed construction, and other structures are identical with Fig. 1.Second shoulder 7 and the first shoulder 6 closely cooperate formation enclosed construction, improve sealing reliability further, improve compensator withstand voltage properties and stability further.
Although be illustrated mode of execution of the present utility model in specification, these mode of executions just as prompting, should not limit protection domain of the present utility model.In the scope not departing from the utility model aim, carry out various omission, displacement and change all should be included in protection domain of the present utility model.
Claims (3)
1. a sleeve expansion joint, comprises inner sleeve, outer sleeve, diameter tube, supported flange, stuffing box packing, and described inner sleeve is sheathed in outer sleeve, it is characterized in that: described diameter tube and outer sleeve end are fixed; Described inner sleeve is provided with the first shoulder, and the first shoulder outer surface and outer sleeve inner surface closely cooperate, and inner sleeve end props up diameter tube; Be filled with a sealing between outer sleeve and inner sleeve gap filler, and stuffing box packing end supported flange seals, and described supported flange is fixed by bolt and outer sleeve.
2. sleeve expansion joint according to claim 1, is characterized in that: described diameter tube and outer sleeve end are welded and fixed.
3. sleeve expansion joint according to claim 1 and 2, is characterized in that: the first described shoulder is swallow-tail form, and outer sleeve inner wall corresponding position is provided with the second supporting shoulder, and the second described shoulder and the first shoulder closely cooperate formation enclosed construction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420443945.6U CN204042304U (en) | 2014-08-07 | 2014-08-07 | A kind of sleeve expansion joint |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420443945.6U CN204042304U (en) | 2014-08-07 | 2014-08-07 | A kind of sleeve expansion joint |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204042304U true CN204042304U (en) | 2014-12-24 |
Family
ID=52242968
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420443945.6U Expired - Fee Related CN204042304U (en) | 2014-08-07 | 2014-08-07 | A kind of sleeve expansion joint |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204042304U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105805476A (en) * | 2016-04-27 | 2016-07-27 | 国核电力规划设计研究院 | High-energy pipeline impact energy absorber |
| CN108952808A (en) * | 2018-07-04 | 2018-12-07 | 中铁六局集团有限公司 | Large volume internal axial pressure compensator installation engineering method |
-
2014
- 2014-08-07 CN CN201420443945.6U patent/CN204042304U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105805476A (en) * | 2016-04-27 | 2016-07-27 | 国核电力规划设计研究院 | High-energy pipeline impact energy absorber |
| CN108952808A (en) * | 2018-07-04 | 2018-12-07 | 中铁六局集团有限公司 | Large volume internal axial pressure compensator installation engineering method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20141224 Termination date: 20150807 |
|
| EXPY | Termination of patent right or utility model |