CN2168156Y - External pressure bidirectional compensation type corrugated expansion joint - Google Patents
External pressure bidirectional compensation type corrugated expansion joint Download PDFInfo
- Publication number
- CN2168156Y CN2168156Y CN 93214327 CN93214327U CN2168156Y CN 2168156 Y CN2168156 Y CN 2168156Y CN 93214327 CN93214327 CN 93214327 CN 93214327 U CN93214327 U CN 93214327U CN 2168156 Y CN2168156 Y CN 2168156Y
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- bellows
- end pipe
- pipe
- protection
- work
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Abstract
The utility model discloses a can absorb ripple expansion joint that receives two-way displacement of pipeline, including end pipe, draft tube, bellows, outer tube, guide ring board, characterized by overlaps respectively work bellows, protection bellows on dividing into two sections end pipe and fix. When the pipeline is heated and extended or contracted, the end pipe and the working corrugated pipe are driven to move reversely, so that the displacement of the pipeline in two directions is compensated. The utility model discloses simple structure, compensation volume are big, the comprehensive cost of engineering can reduce 20-25%, are applicable to various industry and send hot pipeline.
Description
The utility model related to a kind of can overcome pipeline expand with heat and contract with cold the influence corrugated expansion joint.
In the metallic conduit of the cold and hot medium of remote conveying, cause metallic conduit to elongate or shorten in order to overcome because of expanding with heat and contract with cold, a corrugated expansion joint need be installed in the middle of metallic conduit separated by a distance.Existing external pressure corrugated expansion joint can only absorb unidirectional displacement, and compensation ability is little, thereby the engineering cost height.
Task of the present utility model is to provide a kind of strong external pressure bidirectional compensating formula corrugated expansion joint of displacement, compensation ability that can absorb both direction.
The technological scheme of finishing the utility model task is that one or one group of bellows respectively are set in the both sides of guide shell, and an end of the inner of each or every group of bellows and end pipe welds mutually, outer end and outer sleeve welding.The end pipe that welds mutually with main pipe will make these two sections bellowss when expanded by heating the inner is respectively to the direction motion at guide shell center; When the main pipe temperature reduced, just shrank to the centerline direction motion of leaving guide shell because of main pipe the inner of two sections bellowss.So just elongation and the shortening of the pipeline that pipeline brings because of expanding with heat and contract with cold have been compensated.The ripple expansion that this structure is made has just absorbed the displacement on the pipeline both direction.
Fig. 1 is the utility model embodiment's a structural drawing.External among the figure except that hydrophobic group, the each several part bilateral symmetry.
1-end pipe 2-end pipe lagging
3-sheath 4-protects bellows
5-sealing ring flat-plate 6-work bellows
7-guiding ring flat-plate 8-outer sleeve lagging
The hydrophobic assembly of 9-outer sleeve 10-
The outer attachment band tube of 11-protection bellows
12-connects the attachment band tube of protection bellows and work bellows
The interior attachment band tube of 13-work bellows
The 14-guide shell
End pipe ［ 1 ］ is divided into separated by a distance two sections, and its spacing is the maximum compression distance.
The interior attachment band tube ［ 13 ］ of the outer attachment band tube ［ 11 ］ of protection bellows and work bellows is welded on the end pipe ［ 1 ］.Two outer ends of end pipe ［ 1 ］ are connected with main pipe respectively when mounted.
The two ends of protection bellows ［ 4 ］ respectively with the outer attachment band tube ［ 11 ］ of protection bellows, is connected the protection bellows and welds mutually with the attachment band tube ［ 12 ］ of the bellows of working.
The two ends of work bellows ［ 6 ］ protect bellows to weld mutually with the attachment band tube ［ 12 ］ of work bellows, the interior attachment band tube ［ 13 ］ of work bellows with being connected respectively.
Guiding ring flat-plate ［ 7 ］ is welded on two the inners of end pipe ［ 1 ］ respectively.［ 13 ］ and the guiding ring flat-plate ［ 7 ］ welding.
Sealing ring flat-plate ［ 5 ］ and outer sleeve ［ 9 ］, is connected and protects bellows to weld mutually with the attachment band tube ［ 12 ］ of the bellows of working.
One or more snippets work bellows ［ 6 ］ of outside weldings of every section end pipe, protection bellows ［ 4 ］.
Sheath ［ 3 ］ and outer sleeve ［ 9 ］ welding.
End is guaranteed that sheath ［ 2 ］ and outer sleeve lagging ［ 8 ］ wraps respectively to be attached to and hold to be managed on ［ 1 ］ and the outer sleeve ［ 9 ］.
When end pipe ［ 1 ］ and main pipe connection, after pressure testing was qualified, whole tubing got final product normal operation input.
When main pipe Yin Wendu raise to produce expands elongation, the end pipe ［ 1 ］ of the utility model left half and on interior attachment band tube ［ 13 ］, the guiding ring flat-plate ［ 7 ］ of work bellows just will extend to the right.At this moment, work bellows ［ 6 ］ elongation on the interior attachment band tube ［ 13 ］ that is welded on the work bellows and the attachment band tube ［ 12 ］ that is connected protection bellows and work bellows.Simultaneously, outer attachment band tube ［ 11 ］ and the protection bellows ［ 4 ］ on ［ 12 ］ that is welded on the protection bellows shortens.In like manner, the utility model right half is when main pipe is subjected to thermal stretching, and the protection bellows shortens, the elongation of work bellows, and the guiding ring flat-plate then is moved to the left.
When main pipe temperature during by high temperature step-down temperature, the guiding ring flat-plate ［ 7 ］ of the utility model left half is moved to the left, and work bellows ［ 6 ］ shortens, protection bellows ［ 4 ］ elongation; In like manner, the guiding ring flat-plate of right half moves right, and the work bellows shortens, the elongation of protection bellows.
Owing to installed the displacement that two or more work bellowss have absorbed left and right directions additional in the both sides of guide shell ［ 14 ］, thereby compensation rate is big.
Because protection bellows ［ 4 ］ is welded on the end pipe ［ 1 ］ by outer attachment band tube ［ 11 ］ circumferential weld of protection bellows; even the junction plane that has foul to pass through sheath ［ 3 ］ and end pipe lagging ［ 2 ］ also can only enter the exocoel of protection bellows ［ 4 ］, thereby does not need to set up separately guard chamber.
Fig. 2 is second an embodiment's of the present utility model structural drawing.
1-end pipe 2-end pipe lagging
3-sheath 4-protects bellows
The 6-bellows of working
The 7-ring flat-plate that leads
The hydrophobic assembly of 9-outer sleeve 10-
The outer attachment band tube of 11-protection bellows
12-connects the attachment band tube of protection bellows and work bellows
The interior attachment band tube of 13-work bellows
14-guide shell 15-support
16-sealed end ring flat-plate
The outer attachment band tube ［ 13 ］ of hydrophobic assembly ［ 10 ］, work bellows is welded on respectively on the end pipe ［ 1 ］ among Fig. 2.
Guiding ring flat-plate ［ 7 ］ is welded on the outer attachment band tube ［ 13 ］ of work bellows.
On the two ends of work bellows ［ 6 ］ are welded on ［ 13 ］ respectively and are connected the attachment band tube ［ 12 ］ of protecting bellows and work bellows.
One end of protection bellows ［ 4 ］ and ［ 12 ］ welding, outer attachment band tube ［ 11 ］ welding of the other end and protection bellows.
The other end of the outer attachment band tube ［ 11 ］ of protection bellows and sealed end ring flat-plate ［ 16 ］ welding.
Sealed end ring flat-plate ［ 16 ］ is welded on the outer sleeve ［ 9 ］.
After end pipe ［ 1 ］ is welded on the main pipe, can put into operation through the qualified pipe-line system of pressure testing.Main pipe is subjected to thermal stretching, causes end pipe ［ 1 ］ elongation.Protection bellows ［ 4 ］ on the end pipe ［ 1 ］ in hydrophobic assembly ［ 14 ］ left side and work bellows ［ 6 ］ just extend because of the elongation of end pipe ［ 1 ］, and the interior attachment band tube ［ 13 ］ of work bellows just moves right.In like manner, the interior attachment band tube of the work bellows on ［ 14 ］ right side then is moved to the left.
When the main pipe temperature reduced, the interior attachment band tube of work bellows just moved to original opposite direction.
First embodiment of the present utility model is applicable to the direct-burried pipeline, and second embodiment is applicable to built on stilts pipeline and trench pipeline.
The utility model is because can absorb the displacement of left and right sides both direction, thereby compensation rate is big.The utility model engineering comprehensive cost is low under the condition of identical compensation rate, generally can reduce 20-25%, is applicable to that the compensation of various industrial heating pipelines is used.
Claims (1)
1, a kind of corrugated expansion joint, particularly a kind of external pressure bidirectional compensating formula corrugated expansion joint, comprise and be used for end pipe [1], the guide shell [14] that is connected with main pipe, the work bellows [6] that is enclosed within end pipe [1] outside and protection bellows [4], the outer sleeve [9] that shields and hold the guiding ring flat-plate [7] of pipe [1] welding, it is characterized in that end pipe [1] is divided into two sections; Leave distance between two sections; The inner of every section end pipe all is welded with a guiding ring flat-plate [7]; The outside of every section end pipe all is welded with at least one section work bellows [6], protection bellows [4]; Work bellows [6] is welded on the interior attachment band tube [13] of work bellows; The interior attachment band tube [13] of work bellows and guiding ring flat-plate [7] welding; Be connected by connecting the attachment band tube [12] of protection bellows between work bellows [6] and the protection bellows [4] with the work bellows; [12] be welded on the outer sleeve [9]; On outer attachment band tube [11] the welding ends pipe [1] of the other end of protection bellows [4] and protection bellows.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 93214327 CN2168156Y (en) | 1993-05-26 | 1993-05-26 | External pressure bidirectional compensation type corrugated expansion joint |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 93214327 CN2168156Y (en) | 1993-05-26 | 1993-05-26 | External pressure bidirectional compensation type corrugated expansion joint |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2168156Y true CN2168156Y (en) | 1994-06-08 |
Family
ID=33795150
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 93214327 Expired - Fee Related CN2168156Y (en) | 1993-05-26 | 1993-05-26 | External pressure bidirectional compensation type corrugated expansion joint |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2168156Y (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103174904A (en) * | 2013-03-19 | 2013-06-26 | 南京晨光东螺波纹管有限公司 | Balance type expansion joint of low flow resistance compact shape |
| CN103486392A (en) * | 2013-09-30 | 2014-01-01 | 江苏百新波纹管有限公司 | Direct burial inside and outside pressure automatic alarming bellow expansion joint |
| CN103867845A (en) * | 2014-03-06 | 2014-06-18 | 泰州汇海管件科技有限公司 | Maintenance-free directly buried two-way internal pressure bellows compensator |
| CN103867844A (en) * | 2014-03-06 | 2014-06-18 | 泰州汇海管件科技有限公司 | Maintenance-free directly buried two-way external pressure bellows compensator |
| CN103939703A (en) * | 2014-03-19 | 2014-07-23 | 江苏曙光压力容器有限公司 | Coaxial two-way external pressure type anti-twisting expansion joint |
| CN104169498A (en) * | 2012-02-27 | 2014-11-26 | 亨格尔霍夫混凝土联合制造股份有限公司 | Expansion joint |
-
1993
- 1993-05-26 CN CN 93214327 patent/CN2168156Y/en not_active Expired - Fee Related
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104169498A (en) * | 2012-02-27 | 2014-11-26 | 亨格尔霍夫混凝土联合制造股份有限公司 | Expansion joint |
| CN104169498B (en) * | 2012-02-27 | 2017-02-22 | 亨格尔霍夫混凝土联合制造股份有限公司 | Expansion joint |
| CN103174904A (en) * | 2013-03-19 | 2013-06-26 | 南京晨光东螺波纹管有限公司 | Balance type expansion joint of low flow resistance compact shape |
| CN103174904B (en) * | 2013-03-19 | 2015-01-21 | 南京晨光东螺波纹管有限公司 | Balance type expansion joint of low flow resistance compact shape |
| CN103486392A (en) * | 2013-09-30 | 2014-01-01 | 江苏百新波纹管有限公司 | Direct burial inside and outside pressure automatic alarming bellow expansion joint |
| CN103867845A (en) * | 2014-03-06 | 2014-06-18 | 泰州汇海管件科技有限公司 | Maintenance-free directly buried two-way internal pressure bellows compensator |
| CN103867844A (en) * | 2014-03-06 | 2014-06-18 | 泰州汇海管件科技有限公司 | Maintenance-free directly buried two-way external pressure bellows compensator |
| CN103867845B (en) * | 2014-03-06 | 2016-02-10 | 泰州汇海管件科技有限公司 | The two-way interior pressure FlexbleJoint of non-maintaining directly buried type |
| CN103867844B (en) * | 2014-03-06 | 2016-03-23 | 泰州汇海管件科技有限公司 | The two-way external pressure FlexbleJoint of non-maintaining directly buried type |
| CN103939703A (en) * | 2014-03-19 | 2014-07-23 | 江苏曙光压力容器有限公司 | Coaxial two-way external pressure type anti-twisting expansion joint |
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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 |