CN109630755A - A kind of submarine pipeline and installation method with monitoring optical fiber installation coating - Google Patents
A kind of submarine pipeline and installation method with monitoring optical fiber installation coating Download PDFInfo
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- CN109630755A CN109630755A CN201811629644.1A CN201811629644A CN109630755A CN 109630755 A CN109630755 A CN 109630755A CN 201811629644 A CN201811629644 A CN 201811629644A CN 109630755 A CN109630755 A CN 109630755A
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- prefabricated
- pipeline
- optical cable
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- 239000011248 coating agent Substances 0.000 title claims abstract description 276
- 238000000576 coating method Methods 0.000 title claims abstract description 276
- 238000009434 installation Methods 0.000 title claims abstract description 36
- 238000000034 method Methods 0.000 title claims abstract description 26
- 238000012544 monitoring process Methods 0.000 title claims abstract description 24
- 239000013307 optical fiber Substances 0.000 title claims abstract description 19
- 230000003287 optical effect Effects 0.000 claims abstract description 80
- 238000010276 construction Methods 0.000 claims abstract description 18
- 238000009417 prefabrication Methods 0.000 claims description 10
- 238000004519 manufacturing process Methods 0.000 claims description 9
- 239000000463 material Substances 0.000 claims description 9
- 229920005830 Polyurethane Foam Polymers 0.000 claims description 8
- 239000011496 polyurethane foam Substances 0.000 claims description 8
- 238000001746 injection moulding Methods 0.000 claims description 5
- 239000000835 fiber Substances 0.000 claims description 4
- 239000003755 preservative agent Substances 0.000 claims description 4
- 230000002335 preservative effect Effects 0.000 claims description 4
- 230000000694 effects Effects 0.000 abstract description 5
- 230000035945 sensitivity Effects 0.000 abstract description 5
- 239000010410 layer Substances 0.000 description 29
- 238000010586 diagram Methods 0.000 description 12
- 229920002635 polyurethane Polymers 0.000 description 6
- 239000004814 polyurethane Substances 0.000 description 6
- 238000005516 engineering process Methods 0.000 description 5
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 4
- 230000001976 improved effect Effects 0.000 description 3
- 230000004308 accommodation Effects 0.000 description 2
- 239000011247 coating layer Substances 0.000 description 2
- 230000001010 compromised effect Effects 0.000 description 2
- 238000007796 conventional method Methods 0.000 description 2
- 238000001125 extrusion Methods 0.000 description 2
- 229910052742 iron Inorganic materials 0.000 description 2
- 239000013535 sea water Substances 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- TVEXGJYMHHTVKP-UHFFFAOYSA-N 6-oxabicyclo[3.2.1]oct-3-en-7-one Chemical compound C1C2C(=O)OC1C=CC2 TVEXGJYMHHTVKP-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005187 foaming Methods 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
Classifications
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- 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
- F16L7/00—Supporting of pipes or cables inside other pipes or sleeves, e.g. for enabling pipes or cables to be inserted or withdrawn from under roads or railways without interruption of traffic
-
- 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
- F16L1/00—Laying or reclaiming pipes; Repairing or joining pipes on or under water
- F16L1/12—Laying or reclaiming pipes on or under water
- F16L1/16—Laying or reclaiming pipes on or under water on the bottom
-
- 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
- F16L1/00—Laying or reclaiming pipes; Repairing or joining pipes on or under water
- F16L1/12—Laying or reclaiming pipes on or under water
- F16L1/16—Laying or reclaiming pipes on or under water on the bottom
- F16L1/166—Reclaiming pipes
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17D—PIPE-LINE SYSTEMS; PIPE-LINES
- F17D5/00—Protection or supervision of installations
- F17D5/02—Preventing, monitoring, or locating loss
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/46—Processes or apparatus adapted for installing or repairing optical fibres or optical cables
- G02B6/50—Underground or underwater installation; Installation through tubing, conduits or ducts
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Laying Of Electric Cables Or Lines Outside (AREA)
- Light Guides In General And Applications Therefor (AREA)
Abstract
The object of the present invention is to provide a kind of submarine pipelines and installation method with monitoring optical fiber installation coating, including multiple prefabricated coating, pipeline, multiple node coating and optical cable, multiple prefabricated coating pillars are equipped with inside each prefabricated coating, its exterior is equipped with multiple axial grooves and two prefabricated coating circumferential grooves, node coating groove there are two being set inside node coating, its exterior is equipped with multiple node coating pillars and pipeline nodes, node coating pillar side is additionally provided with pressure cable groove, pressure cable groove is arc, the junction of the prefabricated coating of any two is additionally provided with bandage, the facility is integrally-built lighter using weight, the simpler sensing optic cable of structure, while the protection effect for ensuring optical cable, reduce the cost of optical cable buying and engineering construction, improve the sensitivity of sensor monitoring, connector continued access is simpler efficiently, it provides not The temperature-sensitive environment limited by embedded condition, and it is suitable for all types of laying down on sea bottom.
Description
Technical field
The present invention relates to submarine pipeline safety monitoring technology fields more particularly to a kind of with monitoring optical fiber installation coating
Submarine pipeline.
Background technique
Submarine pipeline fiber optic monitoring technology is to pass through light when pipeline leaks with pipeline laying by sensing optic cable
Fine sensing technology sense pipeline leakage causes the variation of leakage point ambient temperature, judges the technology for leaking and positioning.Optical fiber
Method is generally acknowledged monitoring sensitivity, response speed and the best technology of positioning accuracy at present, however the major limitation of the technical application
It is exactly only used on newly-built pipeline, and maximum difficult point is exactly the engineering construction method of adjoining pipe laying.
The most practical engineering applications being currently known all are to use that submarine optical fiber cable is directly strapped in pipeline external
Mode.Since the exposed outside in submarine pipeline of optical cable need to select height to bear the engineering strength of undersea pipe-laying construction
Intensity submarine optical fiber cable, but that there are weight is big, costly etc. for this optical cable, the laying difficulty of engineering construction is big, and project cost is high,
And due to the sensitivity decrease for using its temperature sensing of multilayer thick protection layers.
In submarine pipeline work progress, can also face extreme weather pipe abandon abandon cable the case where, optical cable will be forced truncation abandon into
It is marine, it salvages to go on board again and carries out continued access after construction environment improves, due to using high-intensitive multilayer proofing, be used for continued access light
Fine and recovery strength seabed cable joint expense is high, and time-consuming greatly for continued access operation difficulty, generally has the continuous of a few hours
The time is connect, during which the necessary standby waiting of engineering ship, personnel and equipment, it is practical very high to the tardiness cost of integrated engineering.
Optical cable is fixed on to the mode of submarine pipeline, it can be because distance of the leakage point apart from optical cable leads to temperature-sensitive sensibility
Difference, if the condition of temperature transmitting is undesirable or even to will appear temperature-sensitive unobvious, the case where can not judging leakage.Especially pair
It, can not be in pipe since leaking medium is directly taken away by ocean current in deep seafloor pipeline etc. without the inbuilt submarine pipeline of ditching
Leakage thermal field is formed around road, such mode all suffers from the above problem almost without effect in this case, has to be solved.
Summary of the invention
The object of the present invention is to provide one kind can the special construction used in pipe prefabrication and work progress it is overcoating
Layer, using the coating, it is lighter that submarine pipeline monitoring can be used weight, the simpler sensing optic cable of structure,
While ensuring the protection effect of optical cable, the cost of optical cable buying and engineering construction is reduced, the sensitive of sensor monitoring is improved
Degree, connector continued access is simpler efficiently, provides the temperature-sensitive environment not limited by embedded condition, and be suitable for all types of seabeds
Pipeline.
The technical solution of the present invention is as follows: a kind of submarine pipeline with monitoring optical fiber installation coating, it is characterised in that: including
Multiple prefabricated coating, pipeline, multiple node coating and optical cable, any prefabricated coating be equipped with multiple prefabricated coating pillars,
Multiple axial grooves and two prefabricated coating circumferential grooves, the multiple prefabricated coating pillar are located at the inside of prefabricated coating, appoint
The anticipate prefabricated coating pillar and prefabricated coating is to be fixedly connected, and the multiple axial groove is located at the outside of prefabricated coating, times
The anticipate axial groove and prefabricated coating is to be fixedly connected, and described two prefabricated coating circumferential grooves are located at outside prefabricated coating
The both ends of side, any prefabricated coating circumferential grooves are to be fixedly connected with prefabricated coating, the pipeline be located at prefabricated coating with
The inside of node coating, the pipeline are to be fixedly connected with prefabricated coating and node coating, and any node coating is located at two
Between a prefabricated coating, one end of the node coating is to be fixedly connected with one of them prefabricated coating, the node coating
The other end and another prefabricated coating are to be fixedly connected, and set that there are two node coating grooves, multiple nodes on the node coating
Coating pillar and pipeline node, described two node coating grooves are located at the both ends on the outside of node coating, any section
Point coating groove is to be fixedly connected with node coating, and the multiple node coating pillar is located at the inside of node coating, any institute
It is to be fixedly connected that node coating pillar, which is stated, with node coating, and the pipe section point is located at the inside of node coating, the pipe section
Point is to be fixedly connected with node coating, and the optical cable is located at the side of prefabricated coating and node coating, and the optical cable is covered with prefabricated
Layer is additionally provided with optical cable continued access head on the optical cable, the optical cable continued access head is located at one end of optical cable, the optical cable to be flexibly connected
Continued access head is to be fixedly connected with optical cable.
Further, the prefabricated coating, node coating be can injection molding polymeric material laminated structure.
Further, annular space is formed between the prefabricated coating pillar and pipeline inside the prefabricated coating.
Further, the length of the prefabricated coating and the overlay length of pipeline are identical, the outermost layer week of width and pipeline
Length is identical.
Further, the prefabricated coating circumferential grooves and axial direction of the position of the node coating pillar and pipeline node two sides
Groove is corresponding.
Further, it is additionally provided with pressure cable groove on any node coating pillar, the pressure cable groove is located at node coating
The side of pillar, the pressure cable groove are to be fixedly connected with node coating pillar.
Further, the pressure cable groove be arc, and with the node coating at the axial groove position on the outside of optical cable
And the position of node coating pillar is corresponding.
Further, the junction of the prefabricated coating of any two is additionally provided with bandage, and it is pre- that the bandage is located at any two
Optical cable and prefabricated coating are fixedly connected by the outside of coating junction processed, the bandage.
A kind of submarine pipeline installation method with monitoring optical fiber installation coating, is divided into the installation of pipe prefabrication stage and prefabricated covers
Layer, pipeline laying construction process are laid with pipe, the protection of welded joints of pipe abandon tieback process；
The pipe prefabrication stage is wrapped in the outermost layer of pipeline, pillar using prefabricated coating sheet material after the completion of coating pipeline
Structure inwardly forms annular space with pipeline outer wall, and is strict controlled in the prefabricated coating circumferential grooves and pipe end distance of tube end position
Consistency；
Pipeline laying construction process is laid with the stage with pipe, and the pipeline of prefabricated completion carries out pipeline paving using usual manner
If in pipeline after stretcher, node make station front and back pipeline section by fiber cable laying in the axial groove of prefabricated coating,
The optical cable of tube body position is bound with bandage；After node location completes preservative treatment, by the pre- of node coating pillar and pipeline section
Coating circumferential grooves processed and axial groove carry out clamping installation, the corresponding axial groove for being mounted on optical cable of pressure cable groove, and with tying up
Band binding and fixing then carry out polyurethane foam on node coating groove inside node coating, complete node production；
Tube head optical cable is carried out after towing back to pipe laying barge, optical cable jointing is made by the protection of welded joints of pipe abandon tieback process
It in node location, is then mounted on prefabricated coating with node coating and wraps up node, carry out polyurethane foam, complete node system
Make.
The beneficial effects of the present invention are: the facility is broadly divided into the prefabricated coating of pipe prefabrication stage installation, pipeline is laid with
Work progress with pipe be laid with and pipe abandon tieback process three kinds of usage modes of protection of welded joints, the prefabricated coating of total,
Node coating be all made of can injection molding polymeric material laminated structure, and prefabricated coating is divided into internal layer and outer layer not
Same structure.The outer layer of internal layer and submarine pipeline, it is on the one hand close with submarine pipeline using staggered prefabricated coating pillar
In conjunction with while establish annular space, on the other hand the pressure of extraneous construction installation (such as carrying roller, ditcher) is buffered；And
Outer layer is contacted with submarine pipeline local environment (such as ooze, seawater), is on the one hand light-duty biography using evenly distributed axial groove
Sensing optical cable provides accommodation space, on the other hand can also carry out buffer protection optical cable to extraneous operation pressure；Outer layer both ends use
Prefabricated coating circumferential grooves can provide accurate installation space for bandage binding and fixing optical cable, and can protect bandage not by
Work progress destroys (such as carrying roller and the damage of ditcher extrusion and collision).
Node coating is also divided into the internal layer structure different with outer layer, and internal layer uses node coating pillar, convex cylinder
Position is corresponding with the prefabricated coating circumferential grooves and axial groove of pipeline node two sides, can be clamped installation；Press cable groove
For arc, and it is corresponding with the position of node coating and node coating pillar at the axial groove position on the outside of optical cable,
On the one hand ensure optical cable of the prefabricated coating at the connection protection node location of node location；On the other hand it can be sent out for polyurethane
Bubble provides restrictive annular space, it is not necessary to use the wrappages such as the iron sheet of conventional method.
When pipeline leaks, the medium Fast Filling that can be compromised in the annular space of prefabricated coating and pipeline is built
Good leakage thermal field environment is found, light-duty sensing optic cable can not be influenced by installation site at this time, quickly sense leakage point
Temperature change.Pipeline node location, when leakage can penetrate polyurethane, can be appeared in preferentially pre- due to there is filling polyurethane
In the annular space of coating and pipeline processed, equally it can quickly be sensed by optical cable.
It is integrally-built lighter using weight, the simpler sensing optic cable of structure, in the same of the protection effect for ensuring optical cable
When, the cost of optical cable buying and engineering construction is reduced, the sensitivity of sensor monitoring, the simpler height of connector continued access are improved
Effect provides the temperature-sensitive environment not limited by embedded condition, and is suitable for all types of laying down on sea bottom.
Detailed description of the invention
Fig. 1 is main view of the invention.
Fig. 2 is optical cable of the invention along pipe laying structure schematic diagram.
Fig. 3 is pipe abandon tieback cable configuration schematic diagram of the invention.
Fig. 4 is the prefabricated coating external structure schematic diagram of Pipe installing of the invention.
Fig. 5 is prefabricated coating endothecium structure schematic diagram of the invention.
Fig. 6 is prefabricated coating layer structure schematic diagram of the invention.
Fig. 7 is node coating layer structure schematic diagram of the invention.
Fig. 8 is node coating endothecium structure schematic diagram of the invention.
Fig. 9 is node coating internal layer cross section structure schematic diagram of the invention.
Figure 10 is node coating outer layer cross section structure schematic diagram of the invention.
Figure 11 is the prefabricated coating cross section structure schematic diagram of Pipe installing of the invention.
Figure 12 is that node of the invention makes cross section structure schematic diagram.
Figure 13 is the pipe leakage schematic diagram that coating is installed in use of the invention.
Wherein: 1, prefabricated coating 2, prefabricated coating pillar 3, axial groove
4, prefabricated coating circumferential grooves 5, pipeline 6, annular space
7, node coating 8, node coating groove 9, node coating pillar
10, cable groove 11, pipeline node 12, optical cable are pressed
13, bandage 14, optical cable continued access head
Specific embodiment
Brief description is made to a specific embodiment of the invention with reference to the accompanying drawing.
As shown in Figure 1, Figure 2, Fig. 3, Fig. 4, Fig. 5, Fig. 6, Fig. 7, Fig. 8, Fig. 9, Figure 10, Figure 11, Figure 12, Figure 13, a kind of shown band
There is the submarine pipeline of monitoring optical fiber installation coating, it is characterised in that: including multiple prefabricated coating 1, pipeline 5, multiple node coating 7
With optical cable 12, any prefabricated coating 1 is equipped with multiple prefabricated coating pillars 2, multiple axial grooves 3 and two prefabricated coating
Circumferential grooves 4, the multiple prefabricated coating pillar 2 are located at the inside of prefabricated coating 1, any prefabricated coating pillar 2 with it is pre-
Coating 1 processed is to be fixedly connected, and the multiple axial groove 3 is located at the outside of prefabricated coating 1, any axial groove 3 in advance
Coating 1 processed is to be fixedly connected, and described two prefabricated coating circumferential grooves 4 are located at the both ends in prefabricated 1 outside of coating, any institute
Stating prefabricated coating circumferential grooves 4 and prefabricated coating 1 is to be fixedly connected, and the pipeline 5 is located at prefabricated coating 1 and node coating 7
Inside, the pipeline 5 are to be fixedly connected with prefabricated coating 1 and node coating 7, and the prefabricated coating inside the prefabricated coating 1 is convex
Annular space 6 is formed between column 2 and pipeline 5, any node coating 7 is located between two prefabricated coating 1, the node coating 7
One end and one of them prefabricated coating 1 be to be fixedly connected, the other end of the node coating 7 is with another prefabricated coating 1
It is fixedly connected, is set on the node coating 7 there are two node coating groove 8, multiple node coating pillars 9 and pipeline node 11,
Described two node coating grooves 8 are located at the both ends in 7 outside of node coating, any node coating groove 8 and node
Coating 7 is to be fixedly connected, and the multiple node coating pillar 9 is located at the inside of node coating 7, any node coating pillar
9 with node coating 7 be to be fixedly connected, and pressure cable groove 10, the pressure cable groove 10 are additionally provided on any node coating pillar 9
Positioned at the side of node coating pillar 9, the pressure cable groove 10 is to be fixedly connected with node coating pillar 9, the pipeline node
11 are located at the inside of node coating 7, and the pipeline node 11 is to be fixedly connected with node coating 7, and the optical cable 12 is located at prefabricated
The side of coating 1 and node coating 7, the optical cable 12 are to be flexibly connected with prefabricated coating 1, the prefabricated coating 1 of any two
Junction be additionally provided with bandage 13, the bandage 13 is located at the outside of prefabricated 1 junction of coating of any two, and the bandage 13 will
Optical cable 12 is fixedly connected with prefabricated coating 1, and optical cable continued access head 14, the optical cable continued access head 14 are additionally provided on the optical cable 12
Positioned at one end of optical cable 12, the optical cable continued access head 14 is to be fixedly connected with optical cable 12.The multiple prefabricated coating 1, Duo Gejie
Point coating 7 be can injection molding polymeric material laminated structure.The length of the prefabricated coating 1 and pipeline 5
Overlay length is identical, and width is identical as the outermost layer perimeter of pipeline 5.The position of the node coating pillar 9 and pipeline node
The prefabricated coating circumferential grooves 4 and axial groove 3 of 11 two sides are corresponding.The pressure cable groove 10 is arc, and and optical cable
The position of node coating 7 and node coating pillar 9 at 3 position of axial groove in 12 outsides is corresponding.
Installation method is divided into the prefabricated coating of pipe prefabrication stage installation, and pipeline laying construction process is laid with pipe, pipe abandon
The protection of welded joints of tieback process；
The pipe prefabrication stage is wrapped in the outermost layer of pipeline, pillar using prefabricated coating sheet material after the completion of coating pipeline
Structure inwardly forms annular space with pipeline outer wall, and is strict controlled in the prefabricated coating circumferential grooves and pipe end distance of tube end position
Consistency；
Pipeline laying construction process is laid with the stage with pipe, and the pipeline of prefabricated completion carries out pipeline paving using usual manner
If in pipeline after stretcher, node make station front and back pipeline section by fiber cable laying in the axial groove of prefabricated coating,
The optical cable of tube body position is bound with bandage；After node location completes preservative treatment, by the pre- of node coating pillar and pipeline section
Coating circumferential grooves processed and axial groove carry out clamping installation, the corresponding axial groove for being mounted on optical cable of pressure cable groove, and with tying up
Band binding and fixing then carry out polyurethane foam on node coating groove inside node coating, complete node production；
Tube head optical cable is carried out after towing back to pipe laying barge, optical cable jointing is made by the protection of welded joints of pipe abandon tieback process
It in node location, is then mounted on prefabricated coating with node coating and wraps up node, carry out polyurethane foam, complete node system
Make.
Working method: the facility be broadly divided into the pipe prefabrication stage install prefabricated coating, pipeline laying construction process with
Pipe is laid with and three kinds of usage modes of protection of welded joints of pipe abandon tieback process, and total mainly includes multiple prefabricated coating 1, pipe
Road 5, multiple node coating 7 and optical cable 12, wherein prefabricated coating 1, node coating 7 be all made of can injection molding polymeric material
Expect the laminated structure of production.
The pipe prefabrication stage: after the completion of pipeline 5 applies, the outermost of pipeline 5 is wrapped in using the sheet material of prefabricated coating 1
Layer, the structure of prefabricated coating pillar 2 inwardly forms annular space 6 between 5 outer wall of pipeline, and is strict controlled in the prefabricated of tube end position
The consistency of coating circumferential grooves 4 and pipe end distance.
Pipeline laying construction process is laid with the stage with pipe: the pipeline 5 of prefabricated completion carries out pipeline paving using usual manner
If optical cable 12 is laid in the axial ditch of prefabricated coating 1 by the front and back pipeline section of node production station in pipeline 5 after stretcher
In slot 3, the bandage 13 of optical cable 12 of tube body position is bound；After node location completes preservative treatment, by node coating pillar 9
Clamping installation is carried out with the prefabricated coating circumferential grooves 4 and axial groove 3 of pipeline section, the pressure correspondence of cable groove 10 is mounted on optical cable 12
In axial groove 3, and polyurethane is then carried out inside node coating 7 on node coating groove 8 with 13 binding and fixing of bandage
Node production is completed in foaming.
The protection of welded joints of pipe abandon tieback process: in the case where meeting with extreme weather conditions, the pipeline 5 and optical cable 12 of part is completed
It needs temporarily to be disposal to seabed, after environment meets execution conditions, carries out recycling continued access；At this point, tube head optical cable 12 is dragged
After returning pipe laying barge, optical cable continued access head 14 is produced on node location, is then mounted on prefabricated coating 1 and is wrapped up with node coating 7
Node carries out polyurethane foam, completes node production, and program later is consistent with normal node production method.
Prefabricated coating 1 divides the structure different from outer layer for internal layer.The outer layer of internal layer and submarine pipeline 5, using staggeredly
Prefabricated coating pillar 2, annular space is established while on the one hand combining closely with submarine pipeline 5, on the other hand the external world is applied
The pressure of work facility (such as carrying roller, ditcher) is buffered；And outer layer connects with 5 local environment of submarine pipeline (such as ooze, seawater)
On the one hand touching provides accommodation space using evenly distributed axial groove 3 for light-duty sensing optic cable 12, on the other hand can also be with
Buffer protection optical cable 12 is carried out to extraneous operation pressure；Outer layer both ends use prefabricated coating circumferential grooves 4, can tie up for bandage 13
It pricks fixed optical cable 12 and accurate installation space is provided, and can protect bandage 13 and (such as carrying roller and ditching are not destroyed by work progress
Machine extrusion and collision damage).
Node coating 7 is also divided into the internal layer structure different with outer layer, and internal layer uses node coating pillar 9, convex cylinder
Position it is corresponding with the prefabricated coating circumferential grooves 4 and axial groove 3 of 11 two sides of pipeline node, installation can be clamped；Pressure
Cable groove 10 is arc, and with the node coating 7 and node coating pillar 9 at 3 position of axial groove in the outside of optical cable 12
Position it is corresponding, on the one hand ensure prefabricated coating 1 node location connection protection node location at optical cable 12；Another party
Face can provide restrictive annular space for polyurethane foam, it is not necessary to use the wrappages such as the iron sheet of conventional method.
When pipeline 5 leaks, the medium Fast Filling that can be compromised in prefabricated coating 1 and the annular space of pipeline 5,
Good leakage thermal field environment is established, light-duty sensing optic cable 12 can not be influenced by installation site at this time, quickly sensed and let out
The temperature change of leak source.11 position of pipeline node, when leakage can penetrate polyurethane, can preferentially go out due to there is filling polyurethane
Prefabricated coating 1 equally can quickly be sensed in the annular space of pipeline 5 by optical cable now.
It is integrally-built lighter using weight, the simpler sensing optic cable of structure, in the same of the protection effect for ensuring optical cable
When, the cost of optical cable buying and engineering construction is reduced, the sensitivity of sensor monitoring, the simpler height of connector continued access are improved
Effect provides the temperature-sensitive environment not limited by embedded condition, and is suitable for all types of laying down on sea bottom.
In the description of the present invention, it should be noted that term " center ", " longitudinal direction ", " transverse direction ", "upper", "lower",
The orientation of the instructions such as "front", "rear", "left", "right", "vertical", "horizontal", "inner", "outside", " top ", " bottom ", " end "
Or positional relationship is to be based on the orientation or positional relationship shown in the drawings, and is merely for convenience of description of the present invention and simplification of the description, and
It is not that the device of indication or suggestion meaning or element must have a particular orientation, be constructed and operated in a specific orientation, therefore
It is not considered as limiting the invention.In addition, term " first ", " second ", " third " are used for description purposes only, and cannot manage
Solution is indication or suggestion relative importance.
One embodiment of the present invention has been described in detail above, but the content is only preferable implementation of the invention
Example, should not be considered as limiting the scope of the invention.It is all according to all the changes and improvements made by the present patent application range
Deng should still be within the scope of the patent of the present invention.
Claims (9)
1. a kind of submarine pipeline with monitoring optical fiber installation coating, it is characterised in that: including multiple prefabricated coating, pipeline, more
A node coating and optical cable, it is pre- that any prefabricated coating is equipped with multiple prefabricated coating pillars, multiple axial grooves and two
Coating circumferential grooves processed, the multiple prefabricated coating pillar are located at the inside of prefabricated coating, any prefabricated coating pillar with
Prefabricated coating be fixedly connected, the multiple axial groove is located at the outside of prefabricated coating, arbitrarily the axial groove with it is prefabricated
Coating is to be fixedly connected, and described two prefabricated coating circumferential grooves are located at the both ends on the outside of prefabricated coating, any described pre-
Coating circumferential grooves processed are to be fixedly connected with prefabricated coating, and the pipeline is located at the inside of prefabricated coating and node coating, described
Pipeline is to be fixedly connected with prefabricated coating and node coating, and any node coating is located between two prefabricated coating, described
One end of node coating and one of them prefabricated coating are to be fixedly connected, and the other end of the node coating prefabricated is covered with another
Layer sets that there are two node coating groove, multiple node coating pillars and pipeline node, institutes to be fixedly connected on the node coating
The both ends that two node coating grooves are located on the outside of node coating are stated, any node coating groove is with node coating
It is fixedly connected, the multiple node coating pillar is located at the inside of node coating, and any node coating pillar is covered with node
For layer to be fixedly connected, the pipe section point is located at the inside of node coating, and the pipeline node is to be fixedly connected with node coating,
The optical cable is located at the side of prefabricated coating and node coating, and the optical cable is to be flexibly connected with prefabricated coating, on the optical cable
It is additionally provided with optical cable continued access head, the optical cable continued access head is located at one end of optical cable, and the optical cable continued access head is to be fixedly connected with optical cable.
2. a kind of submarine pipeline with monitoring optical fiber installation coating according to claim 1, it is characterised in that: described prefabricated
Coating, node coating be can injection molding polymeric material laminated structure.
3. a kind of submarine pipeline with monitoring optical fiber installation coating according to claim 1, it is characterised in that: described prefabricated
Prefabricated coating pillar inside coating and annular space is formed between pipeline.
4. a kind of submarine pipeline with monitoring optical fiber installation coating according to claim 1, it is characterised in that: described prefabricated
The length of coating is identical as the overlay length of pipeline, and width is identical as the outermost layer perimeter of pipeline.
5. a kind of submarine pipeline with monitoring optical fiber installation coating according to claim 1, it is characterised in that: the node
The position of coating pillar is corresponding with the prefabricated coating circumferential grooves and axial groove of pipeline node two sides.
6. a kind of submarine pipeline with monitoring optical fiber installation coating according to claim 1, it is characterised in that: any described
Pressure cable groove is additionally provided on node coating pillar, the pressure cable groove is located at the side of node coating pillar, the pressure cable groove
It is to be fixedly connected with node coating pillar.
7. a kind of submarine pipeline with monitoring optical fiber installation coating according to claim 6, it is characterised in that: the pressure cable
Groove is arc, and opposite with the position of node coating and node coating pillar at the axial groove position on the outside of optical cable
It answers.
8. a kind of submarine pipeline with monitoring optical fiber installation coating according to claim 1, it is characterised in that: described any
The junction of two prefabricated coating is additionally provided with bandage, and the bandage is located at the outside of the prefabricated coating junction of any two, described
Optical cable and prefabricated coating are fixedly connected by bandage.
9. a kind of submarine pipeline installation method with monitoring optical fiber installation coating, it is characterised in that: be divided into the pipe prefabrication stage
Prefabricated coating is installed, pipeline laying construction process is laid with pipe, the protection of welded joints of pipe abandon tieback process；
The pipe prefabrication stage is wrapped in the outermost layer of pipeline, convex cylinder using prefabricated coating sheet material after the completion of coating pipeline
Annular space inwardly is formed with pipeline outer wall, and the prefabricated coating circumferential grooves for being strict controlled in tube end position are consistent with pipe end distance
Property；
Pipeline laying construction process is laid with the stage with pipe, and the pipeline of prefabricated completion carries out pipeline laying using usual manner,
Pipeline after stretcher, node make station front and back pipeline section by fiber cable laying in the axial groove of prefabricated coating, to pipe
The optical cable of body position is bound with bandage；After node location completes preservative treatment, node coating pillar and the prefabricated of pipeline section are covered
Layer circumferential grooves and axial groove carry out clamping installation, the corresponding axial groove for being mounted on optical cable of pressure cable groove, and are tied up with bandage
Bundle is fixed on node coating groove, and polyurethane foam is then carried out inside node coating, completes node production；
The protection of welded joints of pipe abandon tieback process, tube head optical cable is carried out after towing back to pipe laying barge, and optical cable jointing is produced on section
Point position, is then mounted on prefabricated coating with node coating and wraps up node, carries out polyurethane foam, completes node production.
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| CN201811629644.1A CN109630755B (en) | 2018-12-29 | 2018-12-29 | Submarine pipeline with monitoring optical fiber installation coating and installation method |
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| CN201811629644.1A CN109630755B (en) | 2018-12-29 | 2018-12-29 | Submarine pipeline with monitoring optical fiber installation coating and installation method |
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| CN109630755B CN109630755B (en) | 2024-02-06 |
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| CN110196040A (en) * | 2019-06-17 | 2019-09-03 | 福建博海工程技术有限公司 | A kind of building device for monitoring inclination and its monitoring method |
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| JP2001082651A (en) * | 1999-09-10 | 2001-03-30 | Higashio Mech Co Ltd | Joint structure for telecommunication cable conduit |
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| CN109630755B (en) | 2024-02-06 |
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