CN103822037A - Multiple two-direction sleeve expansion joint - Google Patents
Multiple two-direction sleeve expansion joint Download PDFInfo
- Publication number
- CN103822037A CN103822037A CN201410098436.9A CN201410098436A CN103822037A CN 103822037 A CN103822037 A CN 103822037A CN 201410098436 A CN201410098436 A CN 201410098436A CN 103822037 A CN103822037 A CN 103822037A
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- CN
- China
- Prior art keywords
- expansion joint
- sleeve expansion
- outer casing
- direction sleeve
- pipe
- 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
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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
- F16L27/00—Adjustable joints, Joints allowing movement
- F16L27/10—Adjustable joints, Joints allowing movement comprising a flexible connection only, e.g. for damping vibrations
- F16L27/1012—Flanged joints
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Joints Allowing Movement (AREA)
Abstract
The invention discloses a multiple two-direction sleeve expansion joint. According to the technical scheme, the multiple two-direction sleeve expansion joint comprises a moving pipe, a compressing flange, an outer casing pipe, sealing filling, an anti-dropping ring and a compressing bolt, wherein the moving pipe is externally connected with the outer casing pipe, the sealing filling serves as the interlayer between the moving pipe and the outer casing pipe, the compressing flange is arranged at the end of the outer casing pipe and provided with the compressing bolt, and the anti-dropping ring is arranged at the end, located in the outer casing pipe, of the moving pipe. The multiple two-direction sleeve expansion joint has the advantages that flowing friction resistance, caused by the multiple two-direction sleeve expansion joint, of fluid is small, and the multiple two-direction sleeve expansion joint is compact in structure, long in service life and low in construction cost; sliding surfaces are good in anti-corrosion performance under a saline water environment or a saline solution environment or other environments because of having being subjected to special treatment; when the sealing effect is weakened, the flange can be tightened again or the bolt is unloosened, one or two layers of sealing rings are arranged, and the multiple two-direction sleeve expansion joint can continue being used; the two-direction characteristic means sliding sleeves at the two ends of the expansion joint can freely slide no matter from which end media flow, and accordingly two-direction compensation is achieved, and the amount of compensation is increased.
Description
Technical field
The present invention relates to slip joint application, relate in particular to compound two-way sleeve slip joint.
Background technique
Because expanding with heat and contract with cold of pipeline, so for pipeline, will produce stress and the push-pull effort of tube wall; Tube wall stress size, affects the intensity of pipeline, and push-pull effort increases, and it is very large that the fixed support of pipeline will do, and bear the push-pull effort that pipeline extension produces; So utilize the change amount of the opening way of slip joint compensation, to reduce tube wall stress and thrust.The compensation rate of waterpipe, gas pipe line and low pressure steam pipeline requires larger, and general length is also longer, the compensator of inapplicable bellows and so on.
Summary of the invention
The object of this invention is to provide a kind of compound two-way sleeve slip joint, the flowage friction resistance of its convection cell is little, compact structure, and the working life of telescopic joint is large, and fatigue life and pipeline are suitable.Flow into from what end of slip joint no matter two-way type feature is medium, always the sliding sleeve at its slip joint two ends is free to slide, reach bidirectional compensating effect, increase compensation rate.
To achieve these goals, technological scheme of the present invention is achieved in that compound two-way sleeve slip joint, it comprises movable pipe 1, supported flange 2, outer sleeve 3, stuffing box packing 4, anti-decylization 5, hold-down bolt 6, the external described outer sleeve 3 of described movable pipe 1, both are described stuffing box packing 4 between interlayer, the port of described outer sleeve 3 is provided with described supported flange 2, described supported flange 2 is provided with described hold-down bolt 6, and one end that described movable pipe 1 is positioned at described outer sleeve 3 is provided with described anti-decylization 5.
Further, described stuffing box packing 4 adopts Expanded graphite ring.
Further, described compound two-way sleeve slip joint is that metallic material is made.
Further, the slidingsurface of described movable pipe 1 is done acid-proof, anticorrosion, antirust processing.
The present invention has following beneficial effect: first, the flowage friction resistance of its convection cell is little, compact structure, and the working life of telescopic joint is large, and fatigue life and pipeline are suitable, and engineering cost is low.Secondly, slidingsurface is through special processing, corrosion resistance and good under the environment such as salt solution, salt solution.Again, for many years after because wearing and tearing are while causing sealing effect to weaken, fastening supported flange again, strengthens sealability, also hold-down bolt can be unclamped, and takes off trim ring, refills into one deck or two-layer seal ring, compresses trim ring, continues to use.Flow into from what end of slip joint no matter two-way type feature is medium, always the sliding sleeve at its slip joint two ends is free to slide, reach bidirectional compensating effect, increase compensation rate.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention.
Embodiment
Below in conjunction with accompanying drawing, the present invention will be further described in detail.
With reference to accompanying drawing 1 description of symbols: 1, movable pipe, 2, supported flange, 3, outer sleeve, 4, stuffing box packing, 5, anti-decylization, 6, hold-down bolt.
The compound two-way sleeve slip joint of the present invention, it comprises movable pipe 1, supported flange 2, outer sleeve 3, stuffing box packing 4, anti-decylization 5, hold-down bolt 6, the external described outer sleeve 3 of described movable pipe 1, the slidingsurface of described movable pipe 1 is done acid-proof, anticorrosion, antirust processing.Between described movable pipe 1, outer sleeve 3 both interlayers, be described stuffing box packing 4, described stuffing box packing 4 adopts Expanded graphite ring, and the feature of Expanded graphite ring is not that intensity is large, friction factor is little, aging, effective, easy to maintenance etc.The port of described outer sleeve 3 is provided with described supported flange 2, described supported flange 2 is provided with described hold-down bolt 6, while causing sealing effect to weaken because of wearing and tearing after for many years, fastening supported flange again, strengthens sealability, also hold-down bolt can be unclamped, take off trim ring, refill into one deck or two-layer sealed graphite ring, compress trim ring, continue to use.One end that described movable pipe 1 is positioned at described outer sleeve 3 is provided with described anti-decylization 5, for preventing that described movable pipe 1 from coming off in described outer sleeve 3.Described compound two-way sleeve slip joint is that metallic material is made, long service life, and overall cost is cheap.
Finally explanation is, above embodiment is only unrestricted in order to technological scheme of the present invention to be described, other modifications that those of ordinary skills make technological scheme of the present invention or be equal to replacement, only otherwise depart from the spirit and scope of technical solution of the present invention, all should be encompassed in the middle of claim scope of the present invention.
Claims (4)
1. compound two-way sleeve slip joint, it comprises movable pipe (1), supported flange (2), outer sleeve (3), stuffing box packing (4), anti-decylization (5), hold-down bolt (6), it is characterized in that, the external described outer sleeve of described movable pipe (1) (3), both are described stuffing box packing (4) between interlayer, the port of described outer sleeve (3) is provided with described supported flange (2), described supported flange (2) is provided with described hold-down bolt (6), and one end that described movable pipe (1) is positioned at described outer sleeve (3) is provided with described anti-decylization (5).
2. compound two-way sleeve slip joint according to claim 1, is characterized in that, described stuffing box packing (4) adopts Expanded graphite ring.
3. compound two-way sleeve slip joint according to claim 1, is characterized in that, described compound two-way sleeve slip joint is that metallic material is made.
4. according to the compound two-way sleeve slip joint described in claim 1 or 3, it is characterized in that, the slidingsurface of described movable pipe (1) is done acid-proof, anticorrosion, antirust processing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410098436.9A CN103822037A (en) | 2014-03-18 | 2014-03-18 | Multiple two-direction sleeve expansion joint |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410098436.9A CN103822037A (en) | 2014-03-18 | 2014-03-18 | Multiple two-direction sleeve expansion joint |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103822037A true CN103822037A (en) | 2014-05-28 |
Family
ID=50757240
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410098436.9A Pending CN103822037A (en) | 2014-03-18 | 2014-03-18 | Multiple two-direction sleeve expansion joint |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103822037A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106679409A (en) * | 2017-03-10 | 2017-05-17 | 北京石油化工工程有限公司 | Sealing device for rotary furnace outer heating jacket |
| CN107018635A (en) * | 2017-05-27 | 2017-08-04 | 滨州学院 | A kind of scalable lengthening for electrical equipment fastens sleeve pipe |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2647770A (en) * | 1950-10-04 | 1953-08-04 | Atomic Energy Commission | Sealed telescopic pipe joint |
| EP0325806A1 (en) * | 1988-01-21 | 1989-08-02 | S.I.F.E. SOCIETA' ITALIANA FORNITURE ELETTRICHE S.p.A. | Sealed extensible coupler for connecting pipes having threaded ends, especially for containing electrical conductors |
| CN2644839Y (en) * | 2003-06-18 | 2004-09-29 | 大庆绿星环保科技有限公司 | Annular tube compensator |
| CN2918946Y (en) * | 2006-06-12 | 2007-07-04 | 阎瑞杰 | Pulling-off preventing oil-sealed tube universal expansion device |
| CN202852306U (en) * | 2012-09-11 | 2013-04-03 | 甘肃晨光管业有限公司 | Bidirectional self-sealing sleeve compensator |
-
2014
- 2014-03-18 CN CN201410098436.9A patent/CN103822037A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2647770A (en) * | 1950-10-04 | 1953-08-04 | Atomic Energy Commission | Sealed telescopic pipe joint |
| EP0325806A1 (en) * | 1988-01-21 | 1989-08-02 | S.I.F.E. SOCIETA' ITALIANA FORNITURE ELETTRICHE S.p.A. | Sealed extensible coupler for connecting pipes having threaded ends, especially for containing electrical conductors |
| CN2644839Y (en) * | 2003-06-18 | 2004-09-29 | 大庆绿星环保科技有限公司 | Annular tube compensator |
| CN2918946Y (en) * | 2006-06-12 | 2007-07-04 | 阎瑞杰 | Pulling-off preventing oil-sealed tube universal expansion device |
| CN202852306U (en) * | 2012-09-11 | 2013-04-03 | 甘肃晨光管业有限公司 | Bidirectional self-sealing sleeve compensator |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106679409A (en) * | 2017-03-10 | 2017-05-17 | 北京石油化工工程有限公司 | Sealing device for rotary furnace outer heating jacket |
| CN107018635A (en) * | 2017-05-27 | 2017-08-04 | 滨州学院 | A kind of scalable lengthening for electrical equipment fastens sleeve pipe |
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|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20140528 |