CN113362994B - Deepwater compression-resistant umbilical cable and manufacturing process thereof - Google Patents
Deepwater compression-resistant umbilical cable and manufacturing process thereof Download PDFInfo
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- CN113362994B CN113362994B CN202110769455.XA CN202110769455A CN113362994B CN 113362994 B CN113362994 B CN 113362994B CN 202110769455 A CN202110769455 A CN 202110769455A CN 113362994 B CN113362994 B CN 113362994B
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B7/00—Insulated conductors or cables characterised by their form
- H01B7/02—Disposition of insulation
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B7/00—Insulated conductors or cables characterised by their form
- H01B7/14—Submarine cables
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B7/00—Insulated conductors or cables characterised by their form
- H01B7/16—Rigid-tube cables
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B7/00—Insulated conductors or cables characterised by their form
- H01B7/17—Protection against damage caused by external factors, e.g. sheaths or armouring
- H01B7/18—Protection against damage caused by wear, mechanical force or pressure; Sheaths; Armouring
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B7/00—Insulated conductors or cables characterised by their form
- H01B7/17—Protection against damage caused by external factors, e.g. sheaths or armouring
- H01B7/18—Protection against damage caused by wear, mechanical force or pressure; Sheaths; Armouring
- H01B7/20—Metal tubes, e.g. lead sheaths
- H01B7/207—Metal tubes, e.g. lead sheaths composed of iron or steel
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B7/00—Insulated conductors or cables characterised by their form
- H01B7/40—Insulated conductors or cables characterised by their form with arrangements for facilitating mounting or securing
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- Laying Of Electric Cables Or Lines Outside (AREA)
- Insulated Conductors (AREA)
Abstract
The invention discloses a deepwater compression-resistant umbilical cable which comprises a functional unit group and an outer sheath for coating the functional unit group, wherein the functional unit group comprises three large steel pipe units, six small steel pipe units, three cable units, three filling separators and three filling steel pipe units, the three large steel pipe units are arranged in the center and distributed in an equilateral triangle, the filling steel pipe units are arranged between every two adjacent large steel pipe units and are separated by the filling steel pipe units, the filling separators are arranged between the periphery of each large steel pipe unit and the inner wall of the outer sheath, the inner part of the outer sheath is separated into three installation areas by the filling separators and the large steel pipe units, and one cable unit and the small steel pipe units positioned on two sides of the cable unit are arranged in each installation area. The deepwater compression-resistant umbilical cable and the manufacturing process thereof provided by the invention have the advantages of simple structure and high strength, and can be suitable for deepwater environments.
Description
Technical Field
The invention relates to the technical field of cables, in particular to a deepwater compression-resistant umbilical cable and a manufacturing process thereof.
Background
The umbilical cable is the combination of cable, optical cable, hydraulic pressure pipe, and the main function is: 1. providing power to the subsea production system; 2. providing a hydraulic channel for controlling the underwater production system; 3. providing a chemical agent pipeline required by oil and gas field development; 4. and transmitting the control signal of the upper module and the sensor data of the underwater production system.
The traditional umbilical cable is generally a steel pipe and a low-voltage cable as functional units, at least 4 or more steel strands are arranged on the outer sides of the periphery of the functional units, a plurality of layers of steel wire armors are wrapped on the outer sides of the functional units after the umbilical cable is formed by wrapping belts, the whole strength of the umbilical cable is improved by taking the combination of the steel wire armors and the steel strands as a bearing component, but along with the increase of water depth, particularly under the environment with the water depth exceeding 1000 meters, the self weight of the umbilical cable in the traditional structure is greatly increased due to the existence of the steel wire armors and the steel strand structures, so that the self weight influence of the umbilical cable in the deep water environment during installation and laying is increased, the stress of the umbilical cable in the deep water environment is easily higher than the strength limit of the umbilical cable, and irreversible damage is caused.
Disclosure of Invention
Aiming at the defects of the prior art, the deep water pressure-resistant umbilical cable and the manufacturing process thereof are provided, the structure is simple, the strength is high, and the deep water pressure-resistant umbilical cable can be suitable for a deep water environment.
In order to achieve the above object, the present invention provides the following technical solutions.
The utility model provides a deep water resistance to compression umbilical cable, includes the functional unit group and will the oversheath of functional unit group cladding, the functional unit group includes three big steel pipe unit, six little steel pipe units, three cable unit, three packing baffle body, three packing steel pipe unit, and is three big steel pipe unit sets up in center department and is equilateral triangle distribution, is equipped with the packing baffle body between the periphery of each big steel pipe unit and the inner wall of oversheath, is three installation area through packing baffle body and big steel pipe unit with the internal partitioning of oversheath, is equipped with one in each installation area the cable unit and be located the little steel pipe unit of cable unit both sides, and still be equipped with in each installation area and be used for packing the little steel pipe unit and pack the packing steel pipe unit between the baffle body.
The invention has the beneficial effects that: the deepwater pressure-resistant umbilical cable has the advantages that the three large steel pipe units are arranged at the center and are in the shape of an equilateral triangle, so that the structure is stable, the water pressure stress resistance of the whole umbilical cable is improved, the umbilical cable cannot deform in a deepwater environment, the stability and the water pressure resistance of the umbilical cable are improved, the umbilical cable can be used in the deepwater environment for a long time without deformation and damage, the filling partition bodies are arranged on the periphery of each large steel pipe unit, the inner part of the outer sheath is partitioned into three installation areas through the filling partition bodies and the large steel pipe units, one cable unit and two small steel pipe units are arranged in each installation area, the small steel pipe units are positioned on two sides of the cable units, the units in each installation area are distributed uniformly, and the force applied to the periphery of the umbilical cable is stable, the cable units are not in mutual contact and cannot be extruded mutually, the extrusion deformation between the cable units is effectively prevented, and the small steel pipe units in each installation area can meet various mechanical performance requirements, the compressive capacity is good, the external pressure borne by the cable units is mostly transmitted to the large steel pipe units and the small steel pipe units, so that the cable units bear smaller pressure, the stability of the cable units is ensured, the umbilical is more suitable for ultra-deep water environments, the filling steel pipe units are also arranged in each installation area, the overall strength can be enhanced, the overall roundness of the umbilical can be ensured, the structure of steel stranded wires is cancelled, the cost is 8% higher than that of the umbilical adopting root steel stranded wires as a strength enhancing unit in the prior art, but the comparison between the overall rigidity and the overall tensile strength is realized, the umbilical of this structure increases 30% in rigidity, increases 200% in tensile strength, and from the comparison in whole weight, sees that the umbilical weight of traditional structure alleviates 15%.
As an improvement of the invention, the large steel pipe unit and the small steel pipe unit respectively comprise steel pipes and steel pipe sheaths covering the outer sides of the steel pipes.
As an improvement of the invention, the outer sheath is provided with a plurality of balance holes penetrating to the outer layer functional unit group, and the balance holes are distributed along the axial direction of the outer sheath.
As an improvement of the invention, the cable unit structure comprises a cable conductor, a cable filler filled in the cable conductor, and a cable conductor insulator, a cable conductor sheath, a weak current metal shield and an outer layer sheath which are sequentially coated outside the cable conductor.
A manufacturing process for the deepwater pressure-resistant umbilical cable comprises the following steps:
a. arranging three large steel pipe units, six small steel pipe units, three cable units, three filling separators and three filling steel pipe units according to preset positions, and performing secondary cabling through a cabling machine to form a functional unit group;
b. after cabling, connecting, wrapping and cabling belt;
c. extruding a layer of outer sheath on the periphery of the functional unit group through an extruder;
d. and punching balance holes on the outer sheath.
As a modification of the present invention, in step g, the diameter of the balancing hole is 2cm, and the number of the balancing holes is plural, the plural balancing holes are distributed along the axial direction of the outer sheath, and the distance between two adjacent balancing holes is 50 m.
As a modification of the present invention, in the step a, during cabling, adhesive tapes of different colors are respectively wound on the joint portion of the cable unit and the joint portion of the middle steel pipe unit.
As a modification of the invention, the thickness of the outer sheath is between 4mm and 6mm, and the drawing speed of the extruder to the outer sheath is between 2m/s and 8 m/s.
As a modification of the invention, in step a, the tension of the cable-former on three large steel pipe units is 230kg-270kg, the tension of the cable-former on six small steel pipe units is 170kg-230kg, and the tension of the cable-former on cable units is 120kg-160 kg.
As an improvement of the invention, the method further comprises a step f of identifying the relevant parameters on the outer sheath.
As a modification of the invention, in step a, the cabling pitch of the cabling machine is between 3320mm and 3720 mm.
As a modification of the invention, in step b, the cabling belt is fixed around the packing rope and is removed before entering the next process.
The invention relates to an improvement, a plurality of threading holes are formed in the distribution plate in a circumferential distribution mode around the circle center of the distribution plate, the threading holes are used for guiding a cabling unit to a cabling die of a cabling machine, an outer mounting ring is arranged on one side of the distribution plate and located between the threading holes and the periphery of the distribution plate, a plurality of mounting holes matched with the threading holes are radially arranged on the outer mounting ring, push rods are arranged in the mounting holes, the tail ends of the push rods extend into the threading holes and are provided with compression wheels, the axial directions of the compression wheels are perpendicular to the axial directions of the threading holes, adjusting screws arranged in the mounting holes are arranged on the periphery of the outer mounting ring, springs are further arranged in the mounting holes, one ends of the springs abut against the adjusting screws, and the other ends of the springs abut against the head ends of the push rods.
As an improvement of the invention, a guide limiting lug is formed on the push rod in a protruding mode, a guide limiting groove is formed in the inner wall of the mounting hole along the axial direction, the bottom end of the guide limiting groove is in a closed state, and the guide limiting lug moves along the guide limiting groove and is limited through the bottom end of the guide limiting groove.
As an improvement of the invention, the distribution board is further provided with an inner mounting ring, the inner mounting ring is arranged between the threading hole and the center of the distribution board, the inner mounting ring is radially provided with a plurality of adjusting holes matched with the threading hole, an adjusting rod is arranged in each adjusting hole, the tail end of each adjusting rod extends into the threading hole and is provided with an adjusting wheel, the axial direction of each adjusting wheel is perpendicular to the axial direction of the threading hole, an adjusting ring groove matched with the cabling unit is formed in each adjusting wheel, an elastic reset piece is arranged between the head end of each adjusting rod and the inner wall of each adjusting hole and sleeved at the head end of each adjusting rod, and the elasticity of all the elastic reset pieces is enough to enable the adjusting wheels to press the cabling unit and prevent the cabling unit from twisting.
Drawings
FIG. 1 is a schematic cross-sectional view of an umbilical of the present invention.
Fig. 2 is a schematic diagram of the distribution board structure of the present invention.
Fig. 3 is an enlarged view of a portion of fig. 2 according to the present invention.
Fig. 4 is a partially enlarged view of the invention at B in fig. 2.
Fig. 5 is a schematic view of the combination of the pinch roller, the adjustment roller and the cabling unit of the present invention.
In the figure, 1, an outer sheath; 2. a cable unit; 3. a small steel pipe unit; 4. a large steel pipe unit; 5. filling the separator; 6. filling the steel pipe unit; 7. an installation area; 8. cabling belt; 9. a balance hole; 11. a distributing board; 12. threading holes; 13. an outer mounting ring; 14. a push rod; 15. mounting holes; 16. adjusting screws; 17. a pinch roller; 18. a spring; 19. a guide limit bump; 20. a guide limit groove; 21. an inner mounting ring; 22. an adjustment hole; 23. adjusting a rod; 24. an adjustment wheel; 25. an adjusting ring groove; 26. an elastic reset piece.
Detailed Description
The invention is further explained with reference to the drawings.
Referring to fig. 1, the deepwater pressure-resistant umbilical cable comprises a functional unit group and an outer sheath 1 covering the functional unit group, wherein the functional unit group comprises three large steel pipe units 4, six small steel pipe units 3, three cable units 2, three filling separators 5 and three filling steel pipe units 6, in the embodiment, a steel pipe is divided into the large steel pipe units 4 and the small steel pipe units 3 according to the diameter of the steel pipe, wherein the diameter of each large steel pipe unit 4 is 34.79mm, the diameter of each small steel pipe unit 3 is 19.5mm, and each large steel pipe unit 4 and each small steel pipe unit 3 respectively comprise a steel pipe and a steel pipe sheath covering the outer side of the steel pipe.
Three big steel pipe unit 4 sets up in center department to be equilateral triangle-shaped and distribute, big steel pipe unit 4's external diameter and quality are great, therefore place it in umbilical cable center, can effectively guarantee holistic stability.
Be equipped with packing separator 5 between the periphery of each big steel pipe unit 4 and the inner wall of oversheath 1, separate the interior of oversheath 1 for three installation area 7 through packing separator 5 and big steel pipe unit 4, pack separator 5 and be the dysmorphism structure, be irregular shape according to the clearance preparation, reduce the clearance between umbilical cable cross-section unit, make the umbilical cable cross-section compacter, increase the anti hydrostatic pressure ulceration ability of umbilical cable.
And then dividing the six small steel pipe units 3 into three groups, wherein each group is provided with two small steel pipe units 3, and each installation area 7 is internally provided with one cable unit 2 and the small steel pipe units 3 positioned at two sides of the cable unit 2. Still be equipped with a packing steel pipe in each installation region 7, fill the steel pipe through setting up, can reduce the clearance in each installation region 7, strengthen the bulk strength of umbilical, can also guarantee the circularity of umbilical main part. In this example, the diameter of the filled steel tube was 15.3 mm.
The outer sheath 1 is provided with a plurality of balance holes 9 penetrating through to the outer layer functional unit group, the balance holes 9 are distributed along the axial direction of the outer sheath 1, the diameter of each balance hole 9 is 2cm, and the distance between every two adjacent balance holes 9 is 50 m. Make the umbilical cable in the installation, water can be through balanced hole 9 free overflow to umbilical cable inside to reach the whole balanced purpose of inside and outside pressure of umbilical cable, make umbilical cable can not take place great cross-section deformation and by the conquassation under high water pressure environment.
And the outer sheath 1 is made of polyethylene, has good tensile strength and extrusion performance and good sea water resistance, and can well protect the umbilical cable.
The deepwater pressure-resistant umbilical cable of the invention has the advantages that the three large steel pipe units 4 are arranged at the center, the three large steel pipe units 4 are in the shape of an equilateral triangle, the structure is stable, the water pressure stress resistance of the whole umbilical cable is improved, the umbilical cable does not deform under a deepwater environment, the stability and the water pressure resistance of the umbilical cable are improved, the umbilical cable can be used in the deepwater environment for a long time without deformation and damage, the filling bodies are arranged at the periphery of each large steel pipe unit 4, the inner part of the outer sheath 1 is divided into three mounting areas 7 through the filling bodies and the large steel pipe units 4, one cable unit 2 and two small steel pipe units 3 are arranged in each mounting area 7, the small steel pipe units 3 are positioned at two sides of the cable unit 2, the units in each mounting area 7 are distributed uniformly, and the force applied to the periphery of the umbilical cable can be stable, the cable units 2 are not in mutual contact and cannot be extruded mutually, the extrusion deformation between the cable units 2 is effectively prevented, and the small steel pipe units 3 in each installation area 7 can meet various mechanical performance requirements, the pressure resistance is good, most of external pressure borne by the cable units 2 is transmitted to the large steel pipe units 4 and the small steel pipe units 3, so that the cable units 2 bear smaller pressure, the stability of the cable units 2 is ensured, the umbilical cable is more suitable for ultra-deep water environment, the filling steel pipe units 6 are arranged in each installation area 7, the overall strength can be enhanced, the overall roundness of the umbilical cable can be ensured, the structure of steel stranded wires is eliminated, the cost is 8% higher than that of the umbilical cable adopting root steel stranded wires as a strength enhancing unit in the prior art, but the comparison between the overall rigidity and the overall tensile strength is realized, the umbilical of this structure increases 30% in rigidity, increases 200% in tensile strength, and from the comparison in whole weight, sees that the umbilical weight of traditional structure alleviates 15%.
A manufacturing process for the deepwater pressure-resistant umbilical cable comprises the following steps:
a. arranging three large steel pipe units 4, six small steel pipe units 3, three cable units 2, three fillers and three filling steel pipe units 6 according to preset positions, namely the three large steel pipe units 4 are distributed in an equilateral triangle, the filling steel pipe units 6 are arranged between two adjacent large steel pipe units 4, the filling separators 5 are arranged on the periphery of the large steel pipe to form three mounting areas 7, then arranging one cable unit 2 and two small steel pipe units 3 in each mounting area 7, and performing secondary cabling through a cabling machine to form a functional unit group; the diameter of the large steel pipe unit 4 is 34.79mm, the diameter of the small steel pipe unit 3 is 19.5mm, the diameter of the cable unit 2 is 31.7mm, the diameter of the filling steel pipe is 15.3mm, the tension of the cable-former on the three large steel pipe units 4 is 230kg-270kg, the tension of the cable-former on the six small steel pipe units 3 is 170kg-230kg, the tension of the cable-former on the three filling steel pipe units 6 is 160kg-220kg, and the tension of the cable-former on the cable unit 2 is 120kg-160 kg; straightening each unit through the cabling tension to avoid loose cabling structure; setting tension with different sizes for the cabling machine according to the arrangement positions of different units, when the tension is larger, pulling the corresponding unit to the center of the umbilical cable, and when the tension is smaller, pulling the corresponding unit to the center far away from the umbilical cable; the joint part of the cable unit 2 is wound by red adhesive tape, and the joint part of the medium steel pipe unit is wound by yellow adhesive tape for distinguishing; the cabling pitch of the cabling machine is 3320mm to 3720mm so as to meet the requirement of the minimum bending radius of the functional unit group, when the cabling pitch exceeds the range, the cabling is too loose, and when the cabling pitch is lower than the range, the cabling is too tight, and the bending problem occurs;
b. after cabling, the lapping cabling belting 8 is connected, and the cabling belting 8 is bound, so that the tensile strength of the whole umbilical cable is enhanced; the lapped cabling belt 8 is smooth and compact, the overlapping width meets the technological requirements, the lapping has no adverse phenomena such as edge warping and the like, and the joint is tightened by adopting a non-slip adhesive tape, so that the binding effect is achieved, and the tensile strength of the umbilical cable is enhanced; and the PP ropes are wound and wrapped outside the cabling wrapping bag for fixing and protecting, and are removed before entering the next procedure.
c. Extruding a layer of outer sheath 1 on the periphery of the functional unit group through an extruder; the main color is yellow, the color of the color bar is black, the width of the color bar is 10-20mm, the thickness is specified according to the process, the thickness of any point is not less than the thinnest point, the outer diameter is strictly controlled, the thickness of the outer sheath 1 is 5.0mm, the thickness of the thinnest point is 4.5mm, the thickness of any point on the outer sheath 1 is not less than the thinnest point, the outer surface is smooth and flat, and has no defects of holes, cracks, bubbles, depressions and the like, and no visible air holes are formed in the cross section; because the thickness of the outer sheath 1 is large, the traction speed of the extruder to the outer sheath 1 is set to be between 2m/s and 8m/s, the phenomenon that the extruder is overloaded when the traction speed is too high is avoided, the phenomenon that the production efficiency is influenced when the traction speed is too low is avoided, and the uniformity of the thickness of the outer sheath 1 is ensured.
d. Balance holes 9 are drilled in the outer sheath 1, the diameter of each balance hole 9 is 2cm, the number of the balance holes 9 is multiple, the balance holes 9 are distributed along the axial direction of the outer sheath 1, and the distance between every two adjacent balance holes 9 is 50 m.
e. The identification is performed on the outer sheath 1: the mark is durable and waterproof, and simultaneously provides all-round (360 degrees) clear visibility, the mark background is not less than 80mm multiplied by 300mm, and the color of the mark character with the background color of orange is black and is not less than 25.4 mm.
Referring to fig. 2, a plurality of threading holes 12 are formed in the distribution plate 11 around the circumference of the center of the distribution plate 11, the number of the threading holes 12 is at least matched with the number of the cabling units, the threading holes 12 are used for guiding the cabling units to the cable pressing die of the cabling machine for cabling, the diameter of the large steel pipe unit 4 is 34.79mm, the diameter of the small steel pipe unit 3 is 19.5mm, the diameter between the filled steel pipes is 15.3mm, the diameter of the cable unit 2 is 31.7mm, the diameters of the units are different, and when different cabling units pass through the threading holes 12, if the difference between the diameter of the threading holes 12 and the diameter of the cabling units is large, the cabling units can be wound and bent and greatly shake during movement.
In this embodiment, an outer mounting ring 13 and an inner mounting ring 21 are arranged on one side of the distribution board 11 through which the cabling unit penetrates, the outer mounting ring 13 is located between the threading hole 12 and the periphery of the distribution board 11, and the inner mounting ring 21 is arranged between the threading hole 12 and the center of the distribution board 11.
A plurality of mounting holes 15 matched with the threading holes 12 are radially arranged on the outer mounting ring 13, a push rod 14 is arranged in the mounting hole 15, the head end of the push rod 14 is positioned in the mounting hole 15, the tail end of the push rod 14 extends into the threading hole 12, a pinch roller 17 is rotatably arranged, the periphery of the outer mounting ring 13 is provided with an adjusting screw 16 arranged in the mounting hole 15, a spring 18 is also arranged in the mounting hole 15, one end of the spring 18 is propped against the adjusting screw 16, the other end of the spring 18 is pressed against the head end of the push rod 14, the push rod 14 moves towards the center of the threading hole 12 under the action of the spring 18, when the cable unit passes through the threading hole 12, the push rod 14 pushes the pinch roller 17 to contact with the cable unit, thereby eliminating the clearance, avoiding minor diameter's stranding unit winding in through wires hole 12 and bending, guaranteeing the stranding effect better.
And the axial direction of the pinch roller 17 is perpendicular to the axial direction of the threading hole 12, so when the cable unit passes through the threading hole 12, the rotation direction of the pinch roller 17 is matched with the moving direction of the cable unit, the cable unit can be assisted to move in the threading hole 12, and the cable unit is prevented from being stuck, the pinch roller 17 is made of nylon rubber material, has certain rigidity and elasticity, and cannot scratch the surface of the cabling unit, through the action of the spring 18, the pinch roller 17 can have proper pressing force, so that the gap between the pinch roller 17 and the cable unit can be avoided, the cable unit can be prevented from being bent, the pinch roller 17 can be prevented from excessively extruding the cable unit to influence the movement of the cable unit, in addition, through the arrangement of the adjusting screw 16, the compression degree of the spring 18 can be adjusted, and the position of the pinch roller 17 and the pressing force of the pinch roller 17 can be adjusted, therefore, the cable-forming units with different diameters are adapted, the use requirements of the cable-forming units with different diameters are met, when the pressing force of the pressing wheel 17 is too small, the adjusting screw 16 can be screwed down, and when the pressing force of the pressing wheel 17 is too large, the adjusting screw 16 can be unscrewed, so that the adjustment is convenient.
A plurality of adjusting holes 22 matched with the threading holes 12 are radially arranged on the inner mounting ring 21, each adjusting hole 22 is internally provided with an adjusting rod 23, the tail end of each adjusting rod 23 extends into the threading hole 12 and is provided with an adjusting wheel 24, the head end of each adjusting rod 23 is positioned in the corresponding adjusting hole 22, the axial direction of each adjusting wheel 24 is perpendicular to the axial direction of the corresponding threading hole 12, an adjusting ring groove 25 matched with the cabling unit is formed in each adjusting wheel 24, namely, the cabling unit is positioned between each adjusting wheel 24 and each pressing wheel 17, when the pressing wheels 17 apply axial pressing force to the cabling unit, the cabling unit is pressed into the corresponding adjusting ring groove 25, an elastic resetting piece 26 is arranged between the head end of each adjusting rod 23 and the inner wall of the corresponding adjusting hole 22, the elastic resetting piece 26 is sleeved at the head end of each adjusting rod 23, and the elastic force of all the elastic resetting pieces 26 is enough to enable the adjusting wheels 24 to press the cabling unit and prevent the cabling unit from being twisted, when the cable forming unit has a twisting trend, the cable forming unit can be matched with the inner wall of the adjusting ring groove 25, the adjusting wheel 24 and the adjusting rod 23 are pushed to have a tendency of offsetting in the axial direction, and then the elastic resetting piece 26 can be compressed, because the elastic resetting piece 26 is abutted against the adjusting rod 23, the elastic resetting piece 26 can generate an elastic acting force at the moment, under the acting force of the elastic resetting piece 26, the adjusting rod 23 is reset, so that a corresponding counter acting force is applied to the cable forming unit through the adjusting wheel 24, the cable forming unit is pressed to prevent the cable forming unit from twisting, the rotation of the cable forming unit in the advancing process is avoided, and the phenomenon of deviation before the cable forming unit enters a cable pressing die of the cable forming machine is prevented.
In addition, a guide limiting bump 19 is formed on the push rod 14 in a protruding manner along the radial direction, a guide limiting groove 20 is axially formed in the inner wall of the mounting hole 15, the end of the guide limiting groove 20 is in a closed state, the guide limiting bump 19 moves along the guide limiting groove 20 and is limited by the end of the guide limiting groove 20, the moving path of the push rod 14 can be limited by the cooperation of the guide limiting bump 19 and the guide limiting groove 20, the push rod 14 is prevented from being stuck, the end of the guide limiting groove 20 is in a closed state, and when the push rod 14 moves to the end of the guide limiting groove 20, the guide limiting bump abuts against the side wall at the end of the guide limiting groove 20, so that the push rod 14 is limited, and the push rod 14 is prevented from being excessively moved and being separated from the mounting hole 15.
The above description is only a preferred embodiment of the present invention, and all equivalent changes or modifications of the structure, characteristics and principles described in the present patent application are included in the present patent application.
Claims (8)
1. The utility model provides a deep water resistance to compression umbilical cable, includes the functional unit group and will the oversheath of functional unit group cladding, its characterized in that: the functional unit group comprises three large steel pipe units, six small steel pipe units, three cable units, three filling separators and three filling steel pipe units, the three large steel pipe units are arranged at the center and distributed in an equilateral triangle, the filling separators are arranged between the periphery of each large steel pipe unit and the inner wall of the outer sheath, the inner part of the outer sheath is divided into three mounting areas through the filling separators and the large steel pipe units, one cable unit and the small steel pipe units positioned at two sides of the cable unit are arranged in each mounting area, and the filling steel pipe units used for filling the space between the small steel pipe units and the filling separators are also arranged in each mounting area, so that the units in each mounting area are distributed uniformly, and the force applied to the periphery of the umbilical cable can be stabilized;
when the umbilical cable is manufactured, the method comprises the following steps:
a. arranging three large steel pipe units, six small steel pipe units, three cable units, three filling separators and three filling steel pipe units according to preset positions, guiding the three large steel pipe units, the six small steel pipe units, the three cable units, the three filling separators and the three filling steel pipe units to a cable pressing die of a cable former through a distributing terminal, and performing secondary cabling through the cable former to form a functional unit group; the tension of the cable-former on three large steel pipe units is 230kg-270kg, the tension of the cable-former on six small steel pipe units is 170kg-230kg, and the tension of the cable-former on cable units is 120kg-160 kg;
b. after cabling, connecting, wrapping and cabling belt;
c. extruding a layer of outer sheath on the periphery of the functional unit group through an extruder;
d. and (4) punching balance holes on the outer sheath.
2. The deep water pressure resistant umbilical cable of claim 1, wherein: the large steel pipe unit and the small steel pipe unit respectively comprise steel pipes and steel pipe sheaths coated on the outer sides of the steel pipes.
3. The deep water pressure resistant umbilical cable of claim 1, wherein: the outer sheath is provided with a plurality of balance holes penetrating through the outer layer functional unit group, and the balance holes are distributed along the axial direction of the outer sheath.
4. The deep water pressure resistant umbilical cable of claim 1, wherein: the cable unit structure comprises a cable conductor, a cable filler filled in the cable conductor, and a cable conductor insulator, a cable conductor sheath, a weak current metal shield and an outer sheath which are sequentially coated outside the cable conductor.
5. The deep water pressure resistant umbilical cable of claim 1, wherein: in the step d, the diameter of the balance holes is 2cm, the number of the balance holes is multiple, the balance holes are distributed along the axial direction of the outer sheath, and the distance between every two adjacent balance holes is 50 m.
6. The deep water pressure resistant umbilical cable of claim 1, wherein: in the step a, during cabling, adhesive tapes with different colors are respectively wound at the joint part of the cable unit and the joint part of the middle steel pipe unit.
7. The deep water pressure resistant umbilical cable of claim 1, wherein: the utility model discloses a cable laying machine, including adapter plate, wire distributing plate, outer collar, through wires hole, be equipped with outer collar on the adapter plate, outer collar is located the periphery of through wires hole and wire distributing plate, the through wires hole is used for guiding the cabling unit to cable laying machine press die department, one side of wire distributing plate is equipped with outer collar, outer collar is located between the periphery of through wires hole and wire distributing plate, radially be equipped with on the outer collar a plurality of with through wires hole complex mounting hole, be equipped with the push rod in the mounting hole, the end of push rod stretches into through wires hole department to install the pinch roller, the axial of pinch roller with the axial of through wires hole is mutually perpendicular, the periphery of outer collar be equipped with install in adjusting screw in the mounting hole, still be equipped with the spring in the mounting hole, spring one end with adjusting screw offsets, the spring other end with the head end of push rod offsets.
8. The deep water pressure resistant umbilical cable of claim 7, wherein: still be equipped with interior collar on the distributing terminal plate, interior collar is established between through wires hole and the distributing terminal plate centre of a circle, radially be equipped with on the interior collar a plurality of with through wires hole matched with regulation hole, install the regulation pole in the regulation hole, the end of adjusting the pole stretches into through wires hole department to install the regulating wheel, the axial of regulating wheel with the axial of through wires hole is mutually perpendicular, just be formed with on the regulating wheel with cabled cell complex regulation annular, be equipped with the elasticity piece that resets between the head end of adjusting the pole and the inner wall of regulation hole, the head end of adjusting the pole is located to the elasticity piece cover that resets.
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| CN202110769455.XA CN113362994B (en) | 2021-07-07 | 2021-07-07 | Deepwater compression-resistant umbilical cable and manufacturing process thereof |
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| CN209912547U (en) * | 2019-06-11 | 2020-01-07 | 中国海洋石油集团有限公司 | Armored high-strength composite umbilical cable for underwater production system of strong electricity |
| CN210295958U (en) * | 2019-06-25 | 2020-04-10 | 宁波东方电缆股份有限公司 | Umbilical cable for ocean deep water |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| NO328458B1 (en) * | 2006-12-20 | 2010-02-22 | Aker Subsea As | The umbilical |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108257735A (en) * | 2017-12-04 | 2018-07-06 | 安徽皖电机械设备有限公司 | A kind of cable-former pretwist wire breakage detector |
| CN208873514U (en) * | 2018-09-11 | 2019-05-17 | 宁波东方电缆股份有限公司 | A kind of subsea production system steel pipe umbilical cables |
| CN209149847U (en) * | 2018-11-29 | 2019-07-23 | 中天科技海缆有限公司 | Umbilical cables |
| CN209249205U (en) * | 2018-12-29 | 2019-08-13 | 春缆电线电缆有限公司 | A kind of line device of frame type stranding machine |
| CN209912547U (en) * | 2019-06-11 | 2020-01-07 | 中国海洋石油集团有限公司 | Armored high-strength composite umbilical cable for underwater production system of strong electricity |
| CN210295958U (en) * | 2019-06-25 | 2020-04-10 | 宁波东方电缆股份有限公司 | Umbilical cable for ocean deep water |
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| CN113362994A (en) | 2021-09-07 |
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Application publication date: 20210907 Assignee: NINGBO FANYE MARINE TECHNOLOGY Co.,Ltd. Assignor: NINGBO ORIENT WIRES & CABLES Co.,Ltd. Contract record no.: X2023330000565 Denomination of invention: A Deep Water Compression Umbilical Cable and Its Manufacturing Process Granted publication date: 20220527 License type: Common License Record date: 20230828 |
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Denomination of invention: A deep-water compressive umbilical cable and its manufacturing process Granted publication date: 20220527 Pledgee: Agricultural Bank of China Limited Ningbo Beilun branch Pledgor: NINGBO ORIENT WIRES & CABLES Co.,Ltd. Registration number: Y2024980001110 |
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