CN209041752U - A kind of submarine pipeline is floating to drag auxiliary system - Google Patents
A kind of submarine pipeline is floating to drag auxiliary system Download PDFInfo
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- CN209041752U CN209041752U CN201821859950.XU CN201821859950U CN209041752U CN 209041752 U CN209041752 U CN 209041752U CN 201821859950 U CN201821859950 U CN 201821859950U CN 209041752 U CN209041752 U CN 209041752U
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- tugboat
- pipeline
- auxiliary system
- floating
- submarine pipeline
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Abstract
It is floated the utility model discloses a kind of submarine pipeline and drags auxiliary system, including being mounted on the tugboat auxiliary system of tugboat tail portion and the Multi-stage sleeve formula towed equipment being mounted on outside pipeline body；The tugboat auxiliary system includes the steel skeleton for being welded in tugboat tail portion, and porous support is equipped on steel skeleton, connecting rod is provided on porous support；The Multi-stage sleeve formula towed equipment includes armored concrete lantern ring and transition rubber lantern ring with pull ring.Compared with prior art, the good effect of the utility model is: the utility model is floated based on submarine pipeline and drags technical characterstic, ocean current, tugboat are comprehensively considered to the mechanics and influence of crust deformation of pipeline, it floats in tugboat stern and pipeline body setting and drags auxiliary device, the effect for reducing pipe end local buckling and pipeline body integrally bending is each served as, avoids the floating journey that is pulled through to the generation damage of the part such as pipeline, weight coating, weld bond.It is the technical solution of the utility model clear principle, easy to implement.
Description
Technical field
It is floated the utility model relates to a kind of submarine pipeline and drags auxiliary system.
Background technique
Seabed gathering line can be used as connection offshore gas platform and processing platform or land pipelines across the defeated of bay
Send channel.The quality control of undersea pipe-laying process influences the safe operation of pipeline later period great.It is floating drag pipe laying be it is a kind of compared with
For common submarine pipeline pipe laying mode, its advantage is that can in the depth of water shallower, pipe laying barge can not the sea area of operation carry out operation.
This method is that precasting yard carries out prefabricated welding by land by submarine pipeline, forms continuous pipeline section, inflating air is bound on pipeline
Capsule, from hoist engine or barge by the pipeline of prefabricated connection integrally drag to specified circuit by and position.Meanwhile compared to other hauling pipe sides
Formula (partly latent drag is dragged the bottom of with), it is floating that method is dragged to have the characteristics that pipeline collsion damage risk is small, operation is convenient.In recent years, with ocean
The development of environmental forecasting technology and construction equipment progress, it is disposable in, short distance submarine pipeline entirety dragging laying prospect can the phase, but
Laying technology have it is to be optimized with it is perfect.
It is conventional floating when dragging operation, connector is welded on to prefabricated submarine pipeline initial and end end, pipeline head end connector and first
Tugboat is held to connect by hawser, tugboat plays draw；Pipeline tail end connector is connect with tail end tugboat by hawser, tugboat
Play the role of keeping pipeline posture；Continuous charge floating drum is bound on pipeline, pipeline is not in sea hereinafter, playing floating pipeline work
With.Floating when dragging operation, ocean current is a kind of large effect factor, and when pipeline tows path, vertical or angle is larger with current direction
When, pipeline will bear biggish lateral thrust, the head end and the synergy of tail end tugboat (pipeline is straightened in tail end tugboat) are needed,
It keeps pipeline form consistent with path is towed, or allows pipeline to have small size offset with water (flow) direction, but amplitude should not be too large, it is no
It then will affect pipeline and integrally tow that (the excessive component that may cause head end tugboat along path of offset reduces, and floating towing speed degree substantially drops
It is low, and tow route and deviate predetermined routing).In this case, the biggish, change as caused by hydro-flow thrust will occur in the middle part of pipeline
Shape causes in the middle part of pipeline, the biggish transverse bending moment of both ends appearance, integrally floats and drag particularly with moderate-length, easily cause pipeline
Complete buckling.It is dragged in operation in addition, conventional floating, head end and tail end tugboat hawser mooring point are higher than the water surface, and pipeline head end and tail
The connector at end is submerged in sea, therefore in actually towing, and biggish part occur in pipeline head end portion and end section
It is bent (upwarping), wave period acts in addition, will impact to the long-term operation stability such as the segment pipe, weight coating.
Summary of the invention
The shortcomings that in order to overcome the prior art, the utility model provide that a kind of submarine pipeline is floating to drag auxiliary system.
The technical scheme adopted by the utility model is a kind of submarine pipeline is floating to drag auxiliary system, including it is mounted on tugboat
The tugboat auxiliary system of tail portion and the Multi-stage sleeve formula towed equipment being mounted on outside pipeline body；The tugboat auxiliary system packet
The steel skeleton for being welded in tugboat tail portion is included, porous support is installed on steel skeleton, connecting rod is provided on porous support；Institute
Stating Multi-stage sleeve formula towed equipment includes armored concrete lantern ring and transition rubber lantern ring with pull ring.
Compared with prior art, the good effect of the utility model is: the utility model is floated based on submarine pipeline and drags technology
Feature comprehensively considers ocean current, tugboat to the mechanics and influence of crust deformation of pipeline, floats in tugboat stern and pipeline body setting and drag auxiliary
Device each serves as the effect for reducing pipe end local buckling and pipeline body integrally bending, avoid it is floating be pulled through journey to pipeline,
The part such as weight coating, weld bond generates damage.It is the technical solution of the utility model clear principle, easy to implement.Specific manifestation are as follows:
(1) setting science
The utility model uses tugboat auxiliary device, reduces the level of connection tugboat and submarine pipeline pipe end institute connection cable
Angle, avoid pipeline enter water, it is floating drag during pipe end excessively upwarp and thus to caused by pipeline body, weight coating and weld seam
Latent destruction.Meanwhile the utility model using armored concrete lantern ring (band pull ring) be fixed on that pipeline is floating and drag during at deformation
Concrete weighted coating outside, use auxiliary tug to maintain pipeline traveling posture, avoid it is floating drag process piping excessive deformation, ensure
Pipeline and attachment safety.
(2) redundancy is enough
Tugboat auxiliary device in the utility model, the connecting rod being arranged on bracket can 2 hawsers of mooring, one with one
Standby, prevention is floating to be pulled through the disconnected guy danger of journey；The armored concrete lantern ring (band pull ring) of the utility model is field fabrication, using continuous
The mode of installation had both improved the operation quantity of dilatory hawser, and also can effectively disperse load.
(3) install, construct it is convenient
Tugboat auxiliary device in the utility model is installed on tugboat in advance, only needs for hawser to be connected in floating and hauling construction
Pipeline section connector is unlocked after reaching predetermined position by diver；The armored concrete lantern ring (band pull ring) of the utility model
For field fabrication, manufacture efficiency is high, and does not need to be recycled after Pipe installing, also facilitates to increase pipeline On-bottom stability.
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 floating tugboat auxiliary system side schematic view for dragging auxiliary system of submarine pipeline of the utility model.
Fig. 2 is a kind of floating tugboat auxiliary system front schematic view for dragging auxiliary system of submarine pipeline of the utility model.
Fig. 3 is a kind of floating Multi-stage sleeve formula towed equipment schematic diagram for dragging auxiliary system of submarine pipeline of the utility model.
Specific embodiment
A kind of submarine pipeline is floating to drag auxiliary system, as shown in Figures 1 to 3, comprising: porous support 1, connecting rod 2, fixed pulley 3,
Steel skeleton 4, armored concrete lantern ring 5 (band pull ring 6) and transition rubber lantern ring 7.Wherein, porous support, connecting rod, fixed pulley,
Steel skeleton forms tugboat auxiliary system, is mounted on other than tugboat tail portion, plays adjusting rope angle, reduces on floating hauling pipe road pipe end
Stick up the effect of width；Armored concrete lantern ring (band pull ring) and transition rubber lantern ring form Multi-stage sleeve formula towed equipment, are mounted on
It outside pipeline body, is connect by the hawser with auxiliary tug, plays and control pipeline posture during floating drag, prevent excessively curved
Song, the effect of protective conduit and attachment safety.
Wherein, in tugboat auxiliary system, steel skeleton is welded in tugboat tail portion, takes root in tugboat deck, the welding of stern two sides
And it consolidates；Steel skeleton overall length is 2m, is in inverted ladder shape, lies on one's side below vessel designs water plane, end is welded and supported
Porous support；The porous support is hollow rectangle steelframe, and the left and right sides is vertical parallel aperture steel bar, length 1m,
10cm is divided between aperture, porous support width is 0.5m, has solder joint, aperture in top, two sides and lower part with the steel skeleton
For standard bolt hole, installed convenient for the connecting rod；The connecting rod is steel threaded rod, and two sides pass through bolt and porous support
The aperture steel bar of two sides connects, easy for installation.It include two kinds of forms in the middle part of connecting rod, it is fixed pulley that one kind, which is smooth type cylinder,
Center of rotation is provided；One kind is rough type cylinder, provides tie point for floating towing cable rope.The fixed pulley is broadside pulley, is used for
It is floating to drag initial phase, the floating dragging process for being dragged in water of submarine pipeline.Pipeline is floating when dragging, according to pipeline balance, vessel draft situation,
Select suitable connecting rod mounting height；After smooth type connecting rod installs fixed pulley, it is installed on bottommost, it is therefore intended that adapt to pipe
Float the trend in general inclination seabed when being dragged in water in road；Rough type connecting rod is installed on above smooth type connecting rod, actual installation
Height is absorbed water absolute altitude according to submarine pipeline and is determined, holding hawser as far as possible is horizontal.Connecting rod installation number is 3, wherein 1 is band
The smooth type connecting rod of pulley, 2 are roughening connecting rod (the using and the reserved).
Wherein, in Multi-stage sleeve formula towed equipment, armored concrete lantern ring (band pull ring) position is according in conjunction with ocean current
The maximum allowable bending stress of pipeline that flow velocity, flow direction simulation obtain determines that installation purpose is to provide for auxiliary tug support, subtracts
Small submarine pipeline integrally bending amplitude.The armored concrete lantern ring (band pull ring) is to be installed on submarine pipeline concrete weighted coating
The concrete-steel circular ring structure in outside, thickness are at least 5cm, width 1m, draw at 3 o'clock and 9 o'clock direction embedded bar
20mm rubber spacer is arranged with submarine pipeline concrete weight coating interlayer in ring, lantern ring inside；(band is drawn the armored concrete lantern ring
Ring) for clipping room away from for 0.5m, installation number is one group 3, it is all connected with branch's hawser of same tugboat, to control minimum bend
Radius；The armored concrete lantern ring (band pull ring) is in-situ precast.The transition rubber lantern ring is rubber material, is installed on sea
On the outside of bottom pipeline concrete weighted coating, outer diameter is centered on armored concrete lantern ring, width 1m, and clipping room is away from for 0.5m；Its
Outer diameter successively successively decreases 1cm, is symmetrically installed along the armored concrete lantern ring (band pull ring) two sides.The transition rubber lantern ring is existing
Field connection installation.It floats during dragging, auxiliary tug draws pipeline in ocean current upstream, reduces pipe deforming amplitude, and it is floating to improve head end
Drag efficiency.After pipeline immersed tube is in place, the armored concrete lantern ring (band pull ring) and transition rubber lantern ring, can be into without recycling
One step improves pipeline On-bottom stability, can also be acted on by the ladder transition of transition rubber lantern ring, the office after reduction pipeline is in place
Portion's remnants mount stress.
The technical principle of the utility model are as follows:
During submarine pipeline floats and is dragged in water, conventional tugboat winch is installed on deck top, enters with submarine pipeline head end
Water angle angle is larger, causes part and submarine pipeline integrated curved that the posture of back-flexing is presented, bending stress is excessive, therefore
In tugboat tail portion, setting is floating drags auxiliary device, and installs fixed pulley, in the case where not influencing winch efficiency, controls drag force side
To, and optimize pipeline and enter water posture.
Submarine pipeline is floating drag during, since tugboat is without special hawser underwater mooring device, hawser is from deck
The connector of top mitered submarine pipeline pipe end, and in order to drag whole submarine pipeline, pipe end connector is by huge dilatory
Power causes submarine pipeline pipe end section to upwarp seriously, produces biggish curved since there are angles with submarine pipeline in hawser direction
Transverse stress, this bending are also easy to the coupled surge by the uneven acceleration of pipeline in heave.By the way that floating drag is arranged
Auxiliary device keeps hawser and submarine pipeline on a horizontal line, essentially eliminates the pipe end floated during dragging and upwarps problem.
During submarine pipeline is floated and dragged, long strip type posture is presented in pipeline, it is most likely that the shadow run by crosscutting ocean current
It rings.For hauling pipe road is floated in longer seabed, pipeline may be pushed into along current direction by crosscutting ocean current, this drags extreme influence
The operational efficiency of wheel, but also pipeline deviates projected route, this brings great threat in fast changing operation on the sea.Together
When, according to the dilatory laying for maintaining submarine pipeline posture in tail portion, due to bearing biggish ocean current impact in the middle part of pipeline, and without in
Between pulling force provide, then may cause pipeline and more serious integrally bending be presented.By the way that Multi-stage sleeve formula towed equipment is arranged, it is
Auxiliary tug operation provides condition, in crosscutting ocean current, keeps pipeline posture and integrated stress horizontal.
Claims (7)
1. a kind of submarine pipeline is floating to drag auxiliary system, it is characterised in that: including be mounted on tugboat tail portion tugboat auxiliary system and
The Multi-stage sleeve formula towed equipment being mounted on outside pipeline body；The tugboat auxiliary system includes the steel for being welded in tugboat tail portion
Skeleton is equipped with porous support on steel skeleton, and connecting rod is provided on porous support；The Multi-stage sleeve formula towed equipment
Including armored concrete lantern ring and transition rubber lantern ring with pull ring.
2. a kind of submarine pipeline according to claim 1 is floating to drag auxiliary system, it is characterised in that: the steel skeleton is in tugboat
Deck, the welding of stern two sides are taken root and are consolidated, and overall length 2m is in inverted ladder shape, lies on one's side below vessel designs water plane.
3. a kind of submarine pipeline according to claim 1 is floating to drag auxiliary system, it is characterised in that: the porous support welding
It is hollow rectangle steelframe in steel skeleton end, the left and right sides is vertical parallel aperture steel bar, length 1m, aperture interval
For 10cm, porous support width is 0.5m, has solder joint in top, two sides and lower part with steel skeleton, the aperture is standard spiral shell
Keyhole is installed convenient for connecting rod.
4. a kind of submarine pipeline according to claim 3 is floating to drag auxiliary system, it is characterised in that: the connecting rod is steel
Threaded rod, two sides are connect by bolt with the aperture steel bar of porous support two sides.
5. a kind of submarine pipeline according to claim 1 is floating to drag auxiliary system, it is characterised in that: the connecting rod includes one
Be in the middle part of root smooth type cylinder connecting rod and two in the middle part of be rough type cylinder connecting rod, the connecting rod of the rough type
It is installed on above smooth type connecting rod.
6. a kind of submarine pipeline according to claim 1 is floating to drag auxiliary system, it is characterised in that: the reinforced concrete soil suite
Ring is the concrete-steel circular ring structure being installed on the outside of submarine pipeline concrete weighted coating, and thickness is at least 5cm, and width is
1m, at 3 o'clock and 9 o'clock direction embedded bar pull ring, the armored concrete lantern ring inside and submarine pipeline concrete weight coating
20mm rubber spacer is arranged in interlayer；The armored concrete lantern ring clipping room is away from for 0.5m, and installation number is one group 3,
Branch's hawser of same tugboat is connected by pull ring.
7. a kind of submarine pipeline according to claim 1 is floating to drag auxiliary system, it is characterised in that: the transition rubber lantern ring
For rubber material, outer diameter is successively successively decreased 1cm centered on armored concrete lantern ring, width 1m, and clipping room is away from for 0.5m, along institute
Armored concrete lantern ring two sides are stated to be symmetrically installed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821859950.XU CN209041752U (en) | 2018-11-12 | 2018-11-12 | A kind of submarine pipeline is floating to drag auxiliary system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821859950.XU CN209041752U (en) | 2018-11-12 | 2018-11-12 | A kind of submarine pipeline is floating to drag auxiliary system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209041752U true CN209041752U (en) | 2019-06-28 |
Family
ID=67041628
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821859950.XU Active CN209041752U (en) | 2018-11-12 | 2018-11-12 | A kind of submarine pipeline is floating to drag auxiliary system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209041752U (en) |
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2018
- 2018-11-12 CN CN201821859950.XU patent/CN209041752U/en active Active
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20210210 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. |