CN209654856U - A kind of mechanical composite tube pipe laying with elastic bending radius of curvature limits device - Google Patents
A kind of mechanical composite tube pipe laying with elastic bending radius of curvature limits device Download PDFInfo
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- CN209654856U CN209654856U CN201920278148.XU CN201920278148U CN209654856U CN 209654856 U CN209654856 U CN 209654856U CN 201920278148 U CN201920278148 U CN 201920278148U CN 209654856 U CN209654856 U CN 209654856U
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Abstract
The utility model discloses a kind of mechanical composite tube pipe laying with elastic bending radius of curvature limits devices, top structure is limited with the bending that bending limits above bottom structure is arranged in including bending limitation bottom structure, it includes being set to the radius of curvature limitation pedestal of pipe laying with elastic bending section pipe trench upper convex section and limiting the upper rubber bed course of base upper surface setting, the lower rubber bed course being arranged in radius of curvature limitation base lower surface in radius of curvature that the bending, which limits bottom structure,；The bending limitation top structure includes being set to the pipeline floating buckling limitation top cover of the convex central segment of pipe laying with elastic bending section pipe trench and covering rubber spacer in being arranged in pipeline floating buckling limitation top cover.The utility model carries out bottom support and top part counterweight using mechanical composite tube of the rigidity supporting structure to convex pipe laying with elastic bending, keep accurately pipe laying with elastic bending posture, and counterweight inhibition is carried out to the floating buckling that may occur, while mechanical composite tube application technology also further having been pushed to develop.
Description
Technical field
The utility model relates to a kind of mechanical composite tube pipe laying with elastic bending radius of curvature limits devices.
Background technique
As gas field development technology continues to develop, the block of the corrosive medias such as high-hydrogen sulfide, chloride ion is increasing,
Pipe material selecting becomes hot spot.After tubing meets the performances such as corrosion resistance, hic resistance, anti-SSC, the economy of tubing is to influence work
The key of journey investment.Multiple tube passes through form of the carbon steel material as base tube (outer tube), liner or lining using corrosion-resistant material,
Play the role of similar with pure material pipeline, and welding technique reaches requirement.Multiple tube is divided into metallurgical composite pipe and machinery is compound
Pipe, the former is attached base tube with interior cover in the form of steel pipe is bonded by metallurgy, and the latter is by base tube and lined steel pipe
It is attached in the form of machinery fitting.The former cost is higher, but has good contact；The latter has economic advantages, but
Deposit the possibility of base tube in operation and the reduction of lining tightness.It can be seen that the tightness problem of material is influence machine in operation
The key of tool multiple tube quality, liner collapse, bulge be tightness eliminate common situations, pipeline is normally produced, the period it is clear
Pipe etc. brings great security risk.
Currently, the research for mechanical composite tube tightness problem is less, to prediction in production run and control tightness
Method understanding need to be continued intensification, only material manufacture requirement on propose tightness index.The author according to early-stage study,
It is not plastic deformation to basic condition with liner, tightness shadow has been carried out to mechanical composite tube pipeline with pressure, with temperature operation
It rings and dissects, it is understood that the pipe laying with elastic bending pipeline section on pipeline is the impacted biggish part of tightness, and with pipe laying with elastic bending
Curved side (close to centre of radius side) is the key position that tightness reduces in pipeline.Therefore, it is necessary to study and propose
The method that mechanical composite tube radius of curvature active control is realized in conduit running, is reduced, shadow with preventing local tightness excessively
Speaking pipe road operational safety.
Summary of the invention
The shortcomings that in order to overcome the prior art, the utility model provide a kind of mechanical composite tube pipe laying with elastic bending radius of curvature
Limits device, based on mechanical composite tube molding and tightness changing rule, it is heavy in fortune conduit running posture, pipe trench to comprehensively consider
The problems such as drop, floating buckling, the angle controlled from Pipeline Curvature radius propose a kind of dress of radius of curvature active control
It sets, achievees the effect that safe and reliable.
The technical scheme adopted by the utility model is a kind of mechanical composite tube pipe laying with elastic bending radius of curvature limits device,
Top structure, the bending limit are limited including bending limitation bottom structure and the bending being arranged in above bending limitation bottom structure
Bottom structure processed includes being set to the radius of curvature limitation pedestal of pipe laying with elastic bending section pipe trench upper convex section and limiting bottom in radius of curvature
The upper rubber bed course of seat upper surface setting, the lower rubber bed course being arranged in radius of curvature limitation base lower surface；It is described curved
Song limitation top structure includes being set to the pipeline floating buckling limitation top cover of the convex central segment of pipe laying with elastic bending section pipe trench and in pipe
Rubber spacer is covered in being arranged in road floating buckling limitation top cover.
Compared with prior art, the good effect of the utility model is: being based on gathering line pipe laying with elastic bending feature, synthesis is examined
Mechanical composite tube tightness influence factor and steel pipe floating buckling influence factor are considered, using rigidity supporting structure to convex bullet
Property laying mechanical composite tube carry out bottom support and top part counterweight, keep accurately pipe laying with elastic bending posture, and to may
The floating buckling of generation carries out counterweight inhibition, while mechanical composite tube application technology also further having been pushed to develop.
The utility model is protected suitable for gathering system mechanical composite tube pipe laying with elastic bending section, and definite principle sets up quick, warp
Ji is reliable.Specific manifestation are as follows:
(1) definite principle
The utility model considers to carry out using mechanical composite tube pipeline of the bending limitation bottom structure to convex pipe laying with elastic bending
Radius of curvature control avoids the caused radius of curvature in installation, operation from deviateing design requirement；Simultaneously in view of gathering line height
The operation characteristic of temperature, high pressure utilizes bending limitation top structure matched with bending limitation bottom structure and additional bob-weight
Structure, the pressure under the offer of convex pipe laying with elastic bending central segment further suppress the radius of curvature variation that may occur.
(2) it sets up quick
The utility model is prefabrication, and scene only needs simply to install；
(3) economic and reliable
The utility model main material is concrete, and source is broad, price economy；Based on the rigid support of molding radian, to making
The higher mechanical composite tube of valence carries out curvature control protection, and cost performance is high, and technically reliable.
(4) it is suitble to radian verification
The utility model can utilize its molding radius of curvature, verify low-angle pipe laying with elastic bending bottom of trench excavation quality.
Detailed description of the invention
The utility model will illustrate by example and with reference to the appended drawing, in which:
Fig. 1 is a kind of system connection signal of mechanical composite tube pipe laying with elastic bending radius of curvature limits device of the utility model
Figure；
Fig. 2 is a kind of schematic cross-section of mechanical composite tube pipe laying with elastic bending radius of curvature limits device of the utility model.
Specific embodiment
A kind of mechanical composite tube pipe laying with elastic bending radius of curvature limits device, as depicted in figs. 1 and 2, comprising: radius of curvature limit
Pedestal 1, upper rubber bed course 2, lower rubber bed course 3, extension board 4, pipeline floating buckling limitation top cover 5 and rubber spacer 6 processed
Deng.
Wherein, radius of curvature limitation pedestal 1, upper rubber bed course 2, the composition bending limitation of lower rubber bed course 3 bottom knot
Structure is responsible for forming the fixed support of mechanical composite tube pipe laying with elastic bending section, avoids the curve error in construction, prevents uneven in operation
Curvature varying caused by even sedimentation.
Specifically,
1) section of radius of curvature limitation pedestal 1 is " rectangle ", and it is highly 1/3 that width, which is D (outer diameter tube)+300mm,
A outer diameter tube+150mm, and prefabricated arc groove are placed, positioning for pipeline；Arc groove center line is located at the curvature
Radius limits the upper surface center of pedestal, and depth capacity is 1/3 outer diameter tube.
2) side of radius of curvature limitation pedestal 1 is " arc-shaped ", and radius of curvature is 1500-2000D (according to stress analysis
The available bending stress calculated determines), prefabricated single arc length is 8m；Both ends prepared screw-bolt hole, can according to actual needs mutually
It connects and extends.
3) radius of curvature limitation pedestal 1 is concrete material, and grade should meet intensity requirement；
4) radius of curvature limits the prefabricated installation top rubber spacer 2 in 1 upper surface of pedestal, for increasing pipeline and radius of curvature
Limit 1 contact area of pedestal, reasonable distribution top pressure；
5) radius of curvature limits the prefabricated installation lower rubber bed course 3 in 1 lower surface of pedestal, uniformly levelling and reasonable for pipe trench
Distribute top pressure；
6) installation method are as follows: after pipe trench is excavated according to pipe laying with elastic bending curvature design and in advance, be put into radius of curvature limitation bottom
Seat 1, and carry out compression processing；Pipeline is placed in the prefabricated arc groove of radius of curvature limitation pedestal 1, is accurately controlled pipeline and is existed
Position radius of curvature.
Wherein, pipeline floating buckling limitation top cover 5 and the composition bending limitation top structure of rubber spacer 6, are responsible for increase machine
Tool multiple tube avoids floating caused by axial stress is concentrated in operation in the catenary motion resistance of the convex central segment of pipe laying with elastic bending section
Curvature varying.
Specifically,
1) section of pipeline floating buckling limitation top cover 5 is " door type ", and width D+250mm is highly 2/3D+
100mm；Hollow width be D+20mm, than 2/3 outer diameter tube of hollow height is 10mm long, keep with pipeline top half holding compared with
Small spacing, and cover rubber layer in utilization and come into full contact with；
2) rubber spacer 6 is covered in pipeline floating buckling limitation top cover 5, plays the role of being bonded pipeline upper surface；Rubber pad
Layer 6 with a thickness of 10mm.
3) pipeline floating buckling limitation 5 side of top cover is arc-shaped, length 5m, minimum constructive height 2/3D+100mm.
4) pipeline floating buckling limitation top cover 5 is by the cast-in-place production of on-site concrete, to solve the problems, such as multi-cambered surface；Production
When, meet 1) -3 using template construct) shell of size, and using on the inside of high-density plastic's film covering shell and pipeline appearance
Rubber spacer 6 is pre-placed in pipeline external surface (high-density plastic's film outside) to buffer pipe caused by later period heating by face
The outer bulbs of pressure, and carry out concreting, molding.
Wherein, the installation of extension board 4 is responsible for expanding ground pressure range, further increases mechanical composite tube in pipe laying with elastic bending section
The catenary motion resistance of convex central segment.
Specifically,
1) extension board 4 is rectangular parallelepiped structure, is highly 50mm, and width is 1000mm bigger than pipeline floating buckling limitation top cover 5,
Length is 4000mm, is made of precasting process, and material is concrete；
2) extension board 4 is installed on 5 top of pipeline floating buckling limitation top cover, contacts with each other, and use rubber spacer
Isolation；
3) the prefabricated lifting lug in 4 top of extension board, is distributed in long center line, and quantity is 2；
4) installation method are as follows: the pipeline floating buckling limitation top cover 5 be installed after, by backfilling of pipe canal to it is described
Pipeline floating buckling limitation top cover 5 flushes, and after compacting, it is in place to hang in extension board 4.
The working principle of the invention and the course of work are as follows:
(1) this system is suitable for the mechanical composite tube pipe laying with elastic bending of oil-gas gathering and transportation system.This programme is based on gathering line bullet
Property laying feature, mechanical composite tube tightness influence factor and steel pipe floating buckling influence factor are comprehensively considered, using rigid
Property support construction bottom support and top part counterweight are carried out to the mechanical composite tube of convex pipe laying with elastic bending, keep accurately elastic
Posture is laid, and counterweight inhibition is carried out to the floating buckling that may occur.
(2) in installation process, pass through the minimum curvature of the guarantee mechanical composite tube tightness performance proposed in design process
Radius requirement, the prefabricated radius of curvature limit pedestal 1, for keep mechanical composite tube in pipe trench (pipe laying with elastic bending section) appearance
State；Using upper and lower layer rubber spacer solve the problems, such as respectively pedestal and bottom of trench, pipeline and pedestal come into full contact with it is levelling.
(3) for gathering line, since there are the characteristic of fluid of high temperature, high pressure, pipe laying with elastic bending section (upper convex section) pipes
Road is very likely influenced by the thermal walking that two sides straight tube transmits, and causes pipeline that floating buckling and radius of curvature bust occurs, because
This is considered as the pipeline floating buckling limitation top cover 5 and carries out top counterweight, increases lower pressure suffered by pipeline, but consider simultaneously
The contact area for increasing pipeline and pipeline floating buckling limitation top cover 5, controls pressure.
(4) further, consider to utilize the extension board 4, expand pipeline and the resistance after slightly shifting up occurs, i.e., it is sharp
With the surface area of extension board 4, the volume of disturbed soil is improved, increases pipeline catenary motion resistance.
Claims (9)
1. a kind of mechanical composite tube pipe laying with elastic bending radius of curvature limits device, it is characterised in that: limit bottom structure including bending
Top structure is limited with the bending being arranged in above bending limitation bottom structure, the bending limitation bottom structure includes being set to
The radius of curvature limitation pedestal of pipe laying with elastic bending section pipe trench upper convex section and the top rubber being arranged in radius of curvature limitation base upper surface
Rubber mat layer, the lower rubber bed course being arranged in radius of curvature limitation base lower surface；The bending limitation top structure includes setting
It is placed in the pipeline floating buckling limitation top cover of the convex central segment of pipe laying with elastic bending section pipe trench and in pipeline floating buckling limitation top cover
Rubber spacer is covered in being arranged.
2. a kind of mechanical composite tube pipe laying with elastic bending radius of curvature limits device according to claim 1, it is characterised in that: institute
State radius of curvature limitation pedestal section be rectangle, width is 300mm longer than outer diameter tube, highly for 1/3 outer diameter tube+
150mm；Arc groove is set on radius of curvature limitation pedestal, and the center line of the arc groove is located at the curvature half
Diameter limits the upper surface center of pedestal, and depth capacity is 1/3 outer diameter tube；The side of the radius of curvature limitation pedestal is circle
Arc, radius of curvature are 1500-2000 times of outer diameter tube；The radius of curvature limitation pedestal is concrete material.
3. a kind of mechanical composite tube pipe laying with elastic bending radius of curvature limits device according to claim 2, it is characterised in that: institute
State that radius of curvature limitation pedestal segmentation is prefabricated, and every section of arc length is 8m, and both ends prepared screw-bolt hole is connected with each other according to actual needs
And extend.
4. a kind of mechanical composite tube pipe laying with elastic bending radius of curvature limits device according to claim 1, it is characterised in that: institute
The section for stating pipeline floating buckling limitation top cover is door type, and width is 250mm longer than outer diameter tube, outside highly than 2/3 pipeline
Path length 100mm；Hollow width is 20mm longer than outer diameter tube, and than 2/3 outer diameter tube of hollow height is 10mm long.
5. a kind of mechanical composite tube pipe laying with elastic bending radius of curvature limits device according to claim 4, it is characterised in that: institute
It states the interior of pipeline floating buckling limitation top cover and covers rubber spacer with a thickness of 10mm.
6. a kind of mechanical composite tube pipe laying with elastic bending radius of curvature limits device according to claim 5, it is characterised in that: institute
Stating pipeline floating buckling limitation top cover side is arc-shaped, length 5m, and than 2/3 outer diameter tube of minimum constructive height is 100mm long.
7. a kind of mechanical composite tube pipe laying with elastic bending radius of curvature limits device according to claim 1, it is characterised in that: In
Setting top additional bob-weight system, the top additional bob-weight system include being mounted on institute above the bending limitation top structure
State the extension board of pipeline floating buckling limitation top cover two sides.
8. a kind of mechanical composite tube pipe laying with elastic bending radius of curvature limits device according to claim 7, it is characterised in that: institute
Stating extension board is rectangular parallelepiped structure, is highly 50mm, and width is 1000mm wider than pipeline floating buckling limitation top cover, and length is
4000mm is made of concrete prefabricated technique, in the prefabricated lifting lug in extension board top, is distributed in long center line, quantity is 2.
9. a kind of mechanical composite tube pipe laying with elastic bending radius of curvature limits device according to claim 8, it is characterised in that: In
Rubber separation layer is set between extension board and pipeline floating buckling limitation top cover.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920278148.XU CN209654856U (en) | 2019-03-04 | 2019-03-04 | A kind of mechanical composite tube pipe laying with elastic bending radius of curvature limits device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920278148.XU CN209654856U (en) | 2019-03-04 | 2019-03-04 | A kind of mechanical composite tube pipe laying with elastic bending radius of curvature limits device |
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| CN209654856U true CN209654856U (en) | 2019-11-19 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111307658A (en) * | 2020-02-11 | 2020-06-19 | 中国石油工程建设有限公司 | Temperature and pressure cooperation-based mechanical composite pipe tightness auxiliary test system and method |
-
2019
- 2019-03-04 CN CN201920278148.XU patent/CN209654856U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111307658A (en) * | 2020-02-11 | 2020-06-19 | 中国石油工程建设有限公司 | Temperature and pressure cooperation-based mechanical composite pipe tightness auxiliary test system and method |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20210223 Address after: No. 6, Sichuan hi tech Zone, sublime Road, Chengdu, Sichuan Patentee after: CHINA PETROLEUM ENGINEERING & CONSTRUCTION Corp. Patentee after: CHINA NATIONAL PETROLEUM Corp. Address before: No. 6, Sichuan hi tech Zone, sublime Road, Chengdu, Sichuan Patentee before: CHINA PETROLEUM ENGINEERING & CONSTRUCTION Corp. |