CN206741946U - A kind of marine streamer - Google Patents
A kind of marine streamer Download PDFInfo
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- CN206741946U CN206741946U CN201720512772.2U CN201720512772U CN206741946U CN 206741946 U CN206741946 U CN 206741946U CN 201720512772 U CN201720512772 U CN 201720512772U CN 206741946 U CN206741946 U CN 206741946U
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Abstract
A kind of marine streamer is the utility model is related to, is made up of cable inner core, buoyancy layer and cable jacket, cable inner core is divided into power wire layer, tensile strength fibers layer, connection layer and restrictive coating from the inside to surface；Power wire layer includes metallic conductor and the insulating barrier being extruded in outside metallic conductor, and multi-core power line is twisted, and flexible sheath is extruded outside the power line after being twisted；Tensile strength fibers layer includes interior fibrous layer, separation layer, outer fibre layer and protective layer, and connection layer includes multipair connection unit group, waterproof paste is filled between each pair connection；Restrictive coating includes aramid fiber braiding layer and urethane jacket layer, and aramid fiber braiding layer is woven on connection layer, and urethane jacket layer is extruded outside aramid fiber braiding layer；Polyethylene foamed buoyancy layer is extruded in the surface of urethane jacket layer, and cable jacket is extruded in polyethylene foamed surface.Marine streamer of the present utility model, environment resistant noise is good, buoyancy is uniform, cable protective performance is good, suitable for the technical field of marine surveys.
Description
Technical field
A kind of marine streamer is the utility model is related to, suitable for the technical field of seafari.
Background technology
With the growth of global economy, the mankind rapidly increase the demand of petroleum gas, offshore petroleum resources increasingly into
For the strategic emphasis of various countries' contention.In this context, seafari technology turns into the key areas for being badly in need of development in China.Ocean
Resource exploration system is the complication system that technology-intensive degree is high, subject span is big, wherein, marine streamer is crucial exploring equipment
One of, its be in marine seismic prospectiong exclusively with the cable with geophone.Marine streamer is to realize naval vessel and water
The critical function element of dynamic power is transmitted between face or underwater operation part, it is related to naval vessel and used in itself and in the water surface or water
The function of electric equipment is realized and safety guarantee.
The marine streamer for being presently used for exploration uses oil-filled cable mostly, and oil-filled cable has following defect：1) whole electricity
Cable buoyancy controls by oil-filled quantity, and the equipment that oil-filled needs are special, buoyancy are not easy to adjust control；2) cable protective performance is bad,
Once oversheath is damaged, marine streamer oil will flow out, and cable is not easy-maintaining, and polluted seawater；3) due to oil-filled cable structure
Limited, oil-filled cable environment resistant noise is bad.Marine streamer currently used for exploration has 3 thousand to eight kms length mostly.In reality
In offshore exploration operation process, the stabilization and Usefulness Pair towing cable of Exploration signals collection, which are manufactured, proposes higher requirement.
Therefore, need that a kind of environment resistant noise is good, and buoyancy is uniform in the prior art, the good ocean of cable protective performance is dragged
Cable.
Utility model content
The utility model deficiency existing for existing oil-filled cable, there is provided a kind of environment resistant noise is good, buoyancy is uniform, electricity
The good marine streamer of cable barrier propterty, improve the reliability and stability that cable uses.
A kind of marine streamer is the utility model is related to, is made up of cable inner core, buoyancy layer and cable jacket, its feature exists
In cable inner core is divided into power wire layer, tensile strength fibers layer, connection layer and restrictive coating from the inside to surface；
The power wire layer includes metallic conductor and the insulating barrier being extruded in outside metallic conductor, and multi-core power line is twisted
Close, flexible sheath is extruded outside the power line after being twisted；Tensile strength fibers layer includes interior fibrous layer, separation layer, outer fibre layer and protection
Layer, the connection layer include multipair connection unit group, waterproof paste are filled between each pair connection；The restrictive coating includes virtue
Synthetic fibre braiding layer and urethane jacket layer, aramid fiber braiding layer are woven on connection layer, and polyurethane jacket is extruded outside aramid fiber braiding layer
Layer；
The buoyancy layer is extruded in the surface of urethane jacket layer, and cable jacket is extruded in the surface of the buoyancy layer.
The ratio between thickness of the radius of the cable inner core and the buoyancy layer is 0.1-5.
Preferably, the metallic conductor is copper conductor, and the insulating barrier is thermoplastic polyester elastomer insulating barrier, the bullet
Property sheath is pe sheath.The interior fibrous layer dextrad is wrapped in power wire layer, and separation layer is woven on interior fibrous layer, institute
It is wrapped on separation layer to state outer fibre layer left-hand.
Preferably, the connection layer includes 16 pairs of connection unit groups, and connection is to be externally provided with thermoplastic polyester elastomer
The tinned copper conductor of body insulating barrier or silver-plated copper conductor.The thickness of insulating layer of the connection is 0.20-0.30mm.
Preferably, the buoyancy layer is polyethylene foamed buoyancy layer, and polyethylene foamed buoyancy layer external diameter is 50-55mm.Institute
It is the polyurethane oversheath for being extruded in polyethylene foamed buoyancy layer surface to state cable jacket, and the polyurethane oversheath external diameter is
55-65mm。
Preferably, the metallic conductor is anaerobic copper conductor, extrudes the thermoplastic polyester of different colours outside copper conductor respectively
Elastic body insulated layer, the urethane jacket layer external diameter are 20-30mm.
According to marine streamer of the present utility model compared with traditional oil-filled cable, the intensity of cable and reliable is improved
Property, it is in particular in：
1) innovation structure designs, and whole piece towing cable proportion is uniform, and buoyancy is more easy to control.
2) signal transmission, noise level are significantly better than common oil-filled cable.
3) double layer tension fibrous layer and the design of the skin construction of distributed load, cable fault rate and spoilage are low, improve
Cable security protection performance.
Brief description of the drawings
Fig. 1 shows the schematic cross-section according to marine streamer of the present utility model.
Fig. 2 shows the internal structure detail drawing of marine streamer.
Embodiment
For the purpose of this utility model, technical scheme and advantage is more clearly understood, below in conjunction with accompanying drawing to this
The embodiment of utility model is described in detail.It should be noted that in the case where not conflicting, embodiment in the application and
Feature in embodiment can be mutually combined.
As shown in Figure 1-2, which show the schematic diagram according to marine streamer of the present utility model.According to the utility model
Marine streamer be made up of cable inner core, buoyancy layer and cable jacket, the radius of the cable inner core and the buoyancy layer
The ratio between thickness is 0.1-5.
Cable inner core is divided into power wire layer, tensile strength fibers layer, connection layer and restrictive coating from the inside to surface.Power wire layer includes
Metallic conductor 1 and the insulating barrier being extruded in outside metallic conductor 1, multi-core power line are twisted, and are squeezed outside the power line after being twisted
Bag flexible sheath.For example, metallic conductor can be copper conductor, insulating barrier can be thermoplastic polyester elastomer (TPEE) insulating barrier
2, it is twisted using 4 core power supply cores, pe sheath 3 is extruded outside the power line being twisted.
Tensile strength fibers layer includes interior fibrous layer 4, separation layer 5, outer fibre layer 6, protective layer 7, interior fibrous layer and outer fibre layer
Aramid fiber material can be used.Interior fibrous layer dextrad is wrapped in power wire layer, and separation layer is woven on interior fibrous layer, the outer fibre
It is wrapped on separation layer to tie up layer left-hand.Specifically, some sub-thread aramid fiber beams are first combined by interior fibrous layer 4, then will be some
Dextrad is stranded in power wire layer the aramid fiber that strands are combined in concentric manner.Separation layer is woven using aramid fiber, and braiding is close
Degree 100%, braiding aramid fiber separation layer are fully wrapped around on interior fibrous layer.The mode left-hand that fibrous layer is same within outer fibre layer twists
Close on braiding separation layer, interior fibrous layer and outer fibre layer rupture pulling force >=150kN, are stretched to from 4kN under 22kN states, extend
Rate≤0.3%, outer fibre layer extrude pe sheath as protective layer (PE sheaths) outside, tensile strength fibers layer can be entered well
Row protection.In order to realize the pulling force characteristic requirement of design tensile strength fibers layer, multistage manufacturing is avoided, it is each caused by multiple retractable cable
Fibrous layer pulling force is unbalanced, the manufacture work that the utility model innovation is produced using interior fibrous layer, separation layer, outer fibre layer series winding
Skill.
Specifically, interior fibrous layer and outer fibre layer use advanced 54 disk cage winch (the 1st section of 12 disks, the 2nd section of 18 disk, the 3rd
24 disks of section), three sections of cages twist spaced apart successively.Braiding separation layer uses 24 ingot Horizontal weave machines, is placed in the 2nd section and the 3rd section of cage
It is by the 2nd section of 18 disks that interior fibrous layer dextrad is wrapped in power wire layer first among winch, then by braider by aramid fiber
It is woven on interior fibrous layer, woven separation layer, it is by the 3rd section of 24 disks that outer fibre layer left-hand is wrapped in braiding separation layer
On.Overall tensile strength fibers layer design and manufacturing process, ensure that tensile strength fibers layer Fracture Force and the design requirement of elongation percentage.
Connection layer includes such as 16 pairs of connection unit groups, and connection uses tinned copper conductor or silver-plated copper conductor 8, led
Extrude TPEE (thermoplastic polyester elastomer) insulating barrier 9 in vitro；2 or 4 connections form a unit groups, between unit group
Mutually twisted, 16 pairs of connections are wrapped on tensile strength fibers layer in a manner of stranding, and waterproof paste 10 is filled between each pair connection,
Wrapped polyurethane elastomer band 11 outside cable core.First by 7 or 19 tinned copper conductors and silver-plated copper conductor with 1+6 or 1+
6+12 mode concentric stranding together, extrudes the insulating barrier of different colours, the utility model design communication outside connection conductor
The thickness of insulating layer of line is 0.20-0.30mm, ensures that communication line insulating layer has good electric insulation and heat resistance.2 cores
Or 4 core connection form a unit group, each unit group designs suitable pitch and is twisted, with reduction unit group core
Between cross-talk and decay, ensure the signal stabilization of connection transmission, 16 pairs of connections wrapped are being drawn with one heart in a manner of stranding
On power fibrous layer, waterproof paste is filled between each pair connection, wrapped polyurethane elastomer band outside cable core, ensure connection
To not loose, while prevent that filling waterproof paste overflows.
Restrictive coating includes aramid fiber braiding layer 12 and transparent polyurethane restrictive coating 13, and aramid fiber braiding layer 12 is woven in 16 pairs of strandings
Connection on, extrude transparent polyurethane restrictive coating 13 outside aramid fiber braiding layer 12.Aramid fiber braiding layer 12 and transparent polyurethane sheath
Layer 13, which constitutes, strengthens tension restrictive coating, has good tension mechanical performance, while has good water resistance, transparent poly-
Urethane restrictive coating external diameter is 20-30mm, preferably 25.2mm.
Buoyancy layer is polyethylene foamed material 14, is extruded in the surface of transparent polyurethane restrictive coating 13, outside polyethylene foamed layer
Footpath is 50-55mm, preferably 52.5mm.Foaming buoyancy layer uses physical foaming process, has good bending property, Ke Yijing
In the state of by 1.2m bending diameters, remained intact after bending more than 5000 times flexural fatigue detections.Specifically, foam process is adopted
With closed-cell foam, gas high pressure is injected in the polyethylene of molten condition, be sufficiently mixed, make it that there is a large amount of be evenly distributed and phase
The alveolar layer mutually isolated, there is good moisture seal performance.Polyethylene foamed by high density polyethylene (HDPE), low density polyethylene (LDPE) and into
Core agent forms.High density polyethylene (HDPE) plays a supportive role to foam structure, ensure that the mechanical strength of insulating barrier, but its electric property
It is poor.Low density polyethylene (LDPE) forms abscess, easily foaming, and uniformity is good, but relatively soft.Nucleator is by changing the crystallization of resin
Behavior, accelerate crystalline rate, can reach shorten molding cycle, improve the product transparency, lustrous surface, tensile strength, rigidity,
The material resources mechanical performance such as heat distortion temperature, impact resistance, creep resistance.The utility model is in order to reach the good softness of buoyancy layer
Property, the mass ratio for designing high density polyethylene (HDPE) is 60-70%, and the mass ratio of low density polyethylene (LDPE) is 30-40%, nucleator
Mass ratio be 0.5%-1.5%, make buoyancy layer that there is the crystallite dimension of more miniaturization, ensure that cable has good machine
Tool performance.
Cable jacket uses polyurethane oversheath 15, is extruded in polyethylene foamed surface, and polyurethane oversheath external diameter is
55-65mm, preferably 59.5mm, there is good mechanical and physical performance and decay resistance.Because marine streamer needs to transmit
Fluctuation information is detected, therefore needs that wave detector is installed inside towing cable.This requires that marine streamer polyurethane oversheath must be with
It is built in the wave detector close adhesion of cable.The utility model first (is included buoyancy layer interior using the method for the front and rear heating of extrusion
The wave detector put) 180 DEG C -200 DEG C are preheated to, polyurethane jackets are then extruded at 190 DEG C by extruder, the poly- ammonia after extrusion
Ester sheath is again heated to 180-200 DEG C.Because wave detector skin material is also polyurethane material, wave detector extrudes front and rear surfaces temperature
Degree is consistent with extrusion temperature, and the urethane skins material of wave detector and the polyurethane material of extrusion are easy to be sticked together, together
When by adjusting extrusion pressure, further ensure the close adhesion of polyurethane oversheath and wave detector.
As illustrated in fig. 1 and 2, it is preferable that metallic conductor 1 of the present utility model can be anaerobic copper conductor, first by 39 copper
Conductor concentric stranding in a manner of 1+6+12+20 together, then extrudes the thermoplastic polyester of different colours respectively outside copper conductor
Elastic body insulated layer.Can also be as needed, by 19 copper conductors, concentric stranding is together in a manner of 1+6+12.This practicality is new
The thickness of insulating layer of type design power line is 0.30-0.40mm, ensure that the safe to use of electric insulation, while reduce cable
External diameter, 4 core copper conductor insulating barrier power lines design suitable pitch and are twisted, and it is good to ensure that cable inner core power line has
Bending property, the power line after being twisted extrude pe sheath outside, can protect insulated wire cores well.
According to marine streamer of the present utility model, the intensity and reliability of cable, whole piece towing cable proportion can be significantly improved
More uniformly, buoyancy is more easy to control；Designed using double layer tension fibrous layer and the skin construction of distributed load, cable fault rate and
Spoilage is low, improves cable security protection performance.
Although the embodiment disclosed by the utility model is as above, described content is only to facilitate understand this practicality
New and use embodiment, is not limited to the utility model.Skill in any the utility model art
Art personnel, can be in the formal and details of implementation on the premise of the spirit and scope disclosed by the utility model are not departed from
On make any modification and change, but scope of patent protection of the present utility model, must still be defined with appended claims
Scope be defined.
Claims (10)
1. a kind of marine streamer, it is made up of cable inner core, buoyancy layer and cable jacket, it is characterised in that cable inner core is from inner
To being divided into power wire layer, tensile strength fibers layer, connection layer and restrictive coating outside；
The power wire layer includes metallic conductor and the insulating barrier being extruded in outside metallic conductor, and multi-core power line is twisted,
Flexible sheath is extruded outside power line after twisted；Tensile strength fibers layer includes interior fibrous layer, separation layer, outer fibre layer and protective layer,
The connection layer includes multipair connection unit group, and waterproof paste is filled between each pair connection；The restrictive coating includes aramid fiber
Braiding layer and urethane jacket layer, aramid fiber braiding layer are woven on connection layer, and urethane jacket layer is extruded outside aramid fiber braiding layer；
The buoyancy layer is extruded in the surface of urethane jacket layer, and cable jacket is extruded in the surface of the buoyancy layer.
2. marine streamer according to claim 1, it is characterised in that the metallic conductor is copper conductor, the insulating barrier
It is thermoplastic polyester elastomer insulating barrier, the flexible sheath is pe sheath.
3. marine streamer according to claim 1 or 2, it is characterised in that the interior fibrous layer dextrad is wrapped in power line
On layer, separation layer is woven on interior fibrous layer, and the outer fibre layer left-hand is wrapped on separation layer.
4. marine streamer according to claim 1 or 2, it is characterised in that the connection layer includes 16 pairs of connection lists
Tuple, connection are the tinned copper conductor for being externally provided with thermoplastic polyester elastomer insulating barrier or silver-plated copper conductor.
5. marine streamer according to claim 4, it is characterised in that the thickness of insulating layer of the connection is 0.20-
0.30mm。
6. marine streamer according to claim 5, it is characterised in that the buoyancy layer is polyethylene foamed buoyancy layer, hair
It is 50-55mm to steep polyethylene buoyancy layer external diameter.
7. marine streamer according to claim 6, it is characterised in that the cable jacket is to be extruded in polyethylene foamed
The polyurethane oversheath of buoyancy layer surface, the polyurethane oversheath external diameter are 55-65mm.
8. the marine streamer according to claim 1 or 7, it is characterised in that the metallic conductor is anaerobic copper conductor, and copper is led
The external thermoplastic polyester elastomer insulating barrier for extruding different colours respectively.
9. the marine streamer according to claim 1 or 6, it is characterised in that the radius and the buoyancy of the cable inner core
The ratio between thickness of layer is 0.1-5.
10. marine streamer according to claim 5, it is characterised in that the urethane jacket layer external diameter is 20-30mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720512772.2U CN206741946U (en) | 2017-05-10 | 2017-05-10 | A kind of marine streamer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720512772.2U CN206741946U (en) | 2017-05-10 | 2017-05-10 | A kind of marine streamer |
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| Publication Number | Publication Date |
|---|---|
| CN206741946U true CN206741946U (en) | 2017-12-12 |
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| CN201720512772.2U Active CN206741946U (en) | 2017-05-10 | 2017-05-10 | A kind of marine streamer |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110246617A (en) * | 2019-07-12 | 2019-09-17 | 江苏中煤电缆有限公司 | Flexible power cable is pressed in the anti-biological type of photoelectric composite sea floating for a kind of shallow sea |
| WO2019210693A1 (en) * | 2018-05-04 | 2019-11-07 | 高骏 | Solid towline having good dragging performance for marine seismic exploration |
-
2017
- 2017-05-10 CN CN201720512772.2U patent/CN206741946U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2019210693A1 (en) * | 2018-05-04 | 2019-11-07 | 高骏 | Solid towline having good dragging performance for marine seismic exploration |
| CN110246617A (en) * | 2019-07-12 | 2019-09-17 | 江苏中煤电缆有限公司 | Flexible power cable is pressed in the anti-biological type of photoelectric composite sea floating for a kind of shallow sea |
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