CN217008695U - Umbilical cable for deepwater hydraulic pile hammer - Google Patents
Umbilical cable for deepwater hydraulic pile hammer Download PDFInfo
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- CN217008695U CN217008695U CN202220740141.7U CN202220740141U CN217008695U CN 217008695 U CN217008695 U CN 217008695U CN 202220740141 U CN202220740141 U CN 202220740141U CN 217008695 U CN217008695 U CN 217008695U
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Abstract
The utility model relates to the technical field of submarine cables, in particular to an umbilical cable for a deep water hydraulic pile hammer, wherein a lighting power unit and a control signal unit with smaller core number and cable number are arranged at the central part of the whole cable core, so that the umbilical cable has compact structure and small overall dimension and can still run stably in a deep water operation environment; in each sub-unit and twisted whole cable core structure, the inner sheath, the outer sheath, the filler and other main structural layers are made of polyurethane materials, and particularly, the filler is embedded between the cable core and the outer sheath in an extrusion mode, so that the structural edge seam roundness can be filled, and the umbilical cable can meet the performance requirements of high tensile strength, water resistance, tear resistance, low temperature resistance, wear resistance, corrosion resistance and the like.
Description
Technical Field
The utility model relates to the technical field of submarine cables, in particular to an umbilical cable for a deep water hydraulic pile hammer.
Background
According to the prediction of international energy agency, about 30% of oil and gas reserves are in shallow water areas and more than 40% of oil and gas reserves are in deep water areas, wherein the potential oil reserves of the deep water areas are about 1000 million barrels, and the development potential is huge. With the development of national deepwater oil and gas fields, the demand for pile hammers and umbilicals is increasing. Umbilicals are widely used in oil and gas field development. The main function of the umbilical is to transmit on-deck electrical power, compressed air power, control signals to the water, while transmitting underwater monitoring, monitoring information to the on-deck control room. Due to complex hydrological conditions, high water pressure and high hydraulic pipeline sealing degree in deep sea areas, the umbilical cable is required to have the characteristics of stable structure, water resistance, smoothness, water pressure resistance, stretching resistance and the like; the performance of the traditional umbilical is not ideal due to unreasonable internal layout and material selection, and the size of the umbilical is unreasonable and the structure is not compact enough, so that the fatigue life and the use effect of the umbilical are affected.
SUMMERY OF THE UTILITY MODEL
In order to solve the technical problems, the utility model provides the umbilical cable for the deep water hydraulic pile hammer, which has the advantages of stable structure, flexibility, good pressure resistance and tensile resistance and compact structure.
In order to achieve the purpose, the utility model provides the following technical scheme: an umbilical cable for a deepwater hydraulic pile hammer comprises a cable core and an outer protective layer arranged on the outer peripheral side of the cable core; a gap between the cable core and the outer protective layer is filled with a filler; the cable core comprises a control signal unit, a power cable unit, a compressed air unit and a communication unit; the control signal unit is positioned at the central part of the whole cable core; the power cable unit and the compressed air unit are both a plurality of and surround the control signal unit, and the control signal unit with the power cable unit with the clearance department of compressed air unit still is equipped with the second and fills the rope.
Further, the outer protective layer comprises a polyolefin inner sheath, an aramid fiber inner liner, a first metal wire armor layer and a first polyurethane sheath, which are sequentially coated on the outer periphery of the cable core from inside to outside; the first metal wire armor layer is formed by spirally armoring two layers of low-carbon galvanized steel wires which are arranged in a reverse staggered mode.
Furthermore, the number of the power cable units is four, and the power cable units are symmetrically distributed on two sides of the control signal unit; the power cable unit comprises a power cable outer protective layer and a plurality of power cable cores arranged on the inner side of the power cable outer protective layer; the power cable core comprises a third oxygen-free copper conductor, a third EPR insulating layer and a third copper wire braided shielding layer which are sequentially arranged from inside to outside; the power cable outer protective layer comprises a fourth copper wire braided shielding layer and a fifth polyurethane sheath layer which are sequentially arranged from inside to outside.
Furthermore, the number of the compressed air units is two, and the two compressed air units are symmetrically distributed on two sides of the control signal unit; the compressed air unit comprises a high-molecular polyethylene pipe and a reinforced fiber outer sheath which are sequentially arranged from inside to outside.
Further, the communication unit is arranged close to the outer protective layer; the communication unit comprises an optical fiber, a water-ointment composition, a stainless steel pipe, a polyethylene inner sheath, a second metal wire armor layer and a polyethylene outer sheath which are sequentially arranged from inside to outside.
Further, the communication unit is arranged close to the outer protective layer; the communication unit comprises a communication cable outer protective layer and three communication cable cores which are uniformly distributed on the inner side of the communication cable outer protective layer; the communication cable core comprises a fourth oxygen-free copper conductor and a fourth EPR insulating layer which are sequentially arranged from inside to outside; the outer protection layer of the communication cable comprises a third cabling binding belt, a third copper wire braided shielding layer and a sixth polyurethane sheath which are sequentially arranged from inside to outside.
Furthermore, the control signal unit comprises a control signal cable core and a second polyurethane sheath coated on the outer periphery of the control signal cable core; the control signal cable core comprises a control cable unit and an illumination power unit.
Further, the lighting power unit is positioned at the central part of the whole control signal cable core; the lighting power unit comprises a lighting power outer protective layer and three lighting power cable cores which are uniformly distributed on the inner side of the lighting power outer protective layer; the lighting power cable core comprises a first oxygen-free copper conductor and a first EPR insulating layer which are sequentially arranged from inside to outside; the lighting electric power outer protection layer comprises a first cabling binding layer, a first copper wire braided shielding layer and a third polyurethane sheath which are sequentially arranged from inside to outside.
Further, the number of the control cable units is six and is uniformly distributed on the outer periphery side of the lighting power unit; the control cable unit comprises a control cable outer protective layer and six control cable cores which are uniformly distributed on the inner side of the control cable outer protective layer; the control cable core comprises a second oxygen-free copper conductor and a second EPR insulating layer which are sequentially arranged from inside to outside; the outer protection layer of the control cable comprises a second cable binding layer, a second copper wire braided shielding layer and a fourth polyurethane sheath which are sequentially arranged from inside to outside.
Preferably, the material of the filling body is polyurethane; the second filling rope is made of aramid fiber reinforcing ribs.
Compared with the prior art, the utility model has the following beneficial effects:
1. in each sub-unit and twisted whole cable core structure, the inner sheath, the outer sheath, the filler and other main structural layers are made of polyurethane materials, particularly, the filler is embedded between the cable core and the outer sheath in an extrusion mode, the structural edge seam roundness can be filled, the power cable unit, the compressed air unit, the control signal unit, the communication unit and other integrated parts in the product can be guaranteed to be reliable in quality and stable in structure, the performance requirements of high tensile strength, water resistance, tear resistance, low temperature resistance, wear resistance, corrosion resistance and the like are met, and compared with a conventional dynamic cable structure, the umbilical cable has good performance when a deep water hydraulic pile hammer system is used and operated.
2. The high molecular polyethylene pipe of the compressed air unit is matched with the high molecular polyethylene pipe, so that the device is suitable for underwater exploration and exploitation operation and engineering construction with the highest bearable pressure of 200 bar and the maximum applicable water depth of 3500 m, and can effectively meet the requirement of the pressure of a deep water hydraulic gas circuit pipeline.
3. The lighting power unit and the control signal unit with small core number and cable number are arranged at the center of the whole cable core, so that the umbilical cable is compact in structure, small in overall dimension and stable in operation in a deep water operation environment.
4. The aramid fiber reinforcing rib with high tensile strength is used as the second filling rope of the material, so that the aramid fiber reinforcing rib has certain elastic flexibility while the performances such as water pressure resistance, water resistance and tensile strength are not weakened, and the requirements of yield protection and shear stress can be effectively met even under the high pressure load environment of a deep water area.
5. Aramid fiber inside lining layer adds the combination form of first wire armor, can make the umbilical cord cable still steady operation under the high pulling force effect, bears the developments of complicated marine environment and twists reverse and surge pulling force.
6. The umbilical cable has the functions of dynamic real-time monitoring and data transmission, and particularly visible transmission of audio images and the like; the dynamic monitoring of the oil and gas exploitation condition in the deep water area can be implemented by adopting the control signal unit, and the states of the equipment and the pipeline are fed back and adjusted.
Drawings
FIG. 1 is a schematic diagram of the overall structure of an umbilical;
FIG. 2 is a schematic diagram of a control signal unit;
FIG. 3 is a schematic structural diagram of a lighting power unit;
FIG. 4 is a schematic structural view of a control cable unit;
FIG. 5 is a schematic structural view of a power cable unit;
FIG. 6 is a schematic view of a compressed air unit;
fig. 7 is a schematic structural diagram of a first embodiment of a communication unit;
fig. 8 is a schematic structural diagram of a second embodiment of a communication unit.
Wherein, 1, a control signal unit, 101, a second polyurethane sheath, 102, a lighting power unit, 1021, a first oxygen-free copper conductor, 1022, a first EPR insulating layer, 1023, a first cabling binding layer, 1024, a first copper wire braided shielding layer, 1025, a third polyurethane sheath, 103, a control cable unit, 103, a second oxygen-free copper conductor, 1032, a second EPR insulating layer, 1033, a second cabling binding layer, 1034, a second copper wire braided shielding layer, 1035, a fourth polyurethane sheath, 1036 and a first filling rope,
2. the power cable comprises a power cable unit, 201, a power cable outer protective layer, 2011, a fourth copper wire braided shielding layer, 2012, a fifth polyurethane sheath, 202, a power cable core, 2021, a third oxygen-free copper conductor, 2022, a third EPR insulating layer, 2023, a third copper wire braided shielding layer, 203 and a polyurethane filling layer;
3. a compressed air unit 301, a high molecular polyethylene pipe 302, a reinforcing fiber outer sheath,
4. a communication unit, 401, optical fibers, 402, a stainless steel pipe, 403, water-blocking ointment, 404, a polyethylene inner sheath, 405, a second metal wire armor layer, 406, a polyethylene outer sheath, 407, a fourth oxygen-free copper conductor, 408, a fourth EPR insulating layer, 409, a third cable binding tape, 410, a fourth copper wire braided shielding layer, 411 and a sixth polyurethane sheath,
5. polyolefin inner sheath, 6, aramid fiber inner liner, 7, first wire armor, 8, first polyurethane sheath, 9, second filling rope, 10, obturator.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be obtained by a person skilled in the art without making any creative effort based on the embodiments in the present invention, belong to the protection scope of the present invention.
In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "front", "rear", "both ends", "one end", "the other end", and the like indicate orientations or positional relationships based on orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be configured in a specific orientation, and operate, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "disposed," "connected," and the like are to be construed broadly, such as "connected," which may be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
The first embodiment:
the umbilical cable for the deep water hydraulic pile hammer comprises a cable core and an outer protective layer arranged on the outer peripheral side of the cable core, wherein a filler 10 is filled in a gap between the cable core and the outer protective layer, so that the integral roundness and the structural stability of the umbilical cable are guaranteed. The obturator 10 is the polyurethane material, utilizes the extrusion formula mould to imbed the polyurethane of molten condition in the gap between cable core and the outer jacket for the high and hardness of the impact strength of umbilical cable is all higher, and it is closely knit to fill the rounding, and the structural configuration that can satisfy umbilical cable is stable, effectively improves umbilical cable's waterproof performance.
The cable core is formed by twisting a control signal unit 1, a power cable unit 2, a compressed air unit 3 and a communication unit 4. The control unit signal 1 is positioned at the central part of the whole cable core; the number of the power cable units 2 is four, and the power cable units are symmetrically distributed on two sides of the control signal unit 1; the number of the compressed air 3 units is two, and the two compressed air units are also symmetrically distributed on two sides of the control signal unit 1; the communication unit 4 is disposed close to the outer sheath.
The outer protective layer comprises a polyolefin inner sheath 5, an aramid fiber inner liner layer 6, a first metal wire armor layer 7 and a first polyurethane sheath 8, wherein the polyolefin inner sheath 5, the aramid fiber inner liner layer 6, the first metal wire armor layer 7 and the first polyurethane sheath are sequentially coated on the outer periphery of the cable core from inside to outside. The first metal wire armor layer 7 is formed by two layers of low-carbon galvanized steel wire spiral armoring which are arranged in a reverse staggered mode, so that the tensile capacity and the lateral pressure resistance of the umbilical cable are improved, and the breakage or signal distortion of optical signal units in the cable core caused by compression and bending in the laying and running processes is avoided. The aramid fiber inner liner layer 6 is made of aramid fibers 141 or Kevlar175 and is formed by stranding bunched yarns, so that the requirements of yield protection and shear stress under a complex marine environment can be fully met while the buffering effect is achieved. The combined form of aramid fiber inner liner 6+ first wire armor 7 can make the umbilical cord cable still steady operation under the high pulling force effect, bears the dynamic of complicated marine environment and twists reverse and surge pulling force.
The control signal unit 1 comprises a second polyurethane sheath 101 positioned at the outermost layer and a control signal cable core arranged at the inner side of the second polyurethane sheath 101. The control signal cable core includes a lighting power unit 102 and a control cable unit 103.
The lighting power unit 102 is one and is located at the center of the whole control signal cable core, and the lighting power unit 102 comprises a lighting power outer protective layer and a lighting power cable core arranged on the inner side of the lighting power outer protective layer. The lighting power cable core is three, and the lighting power cable core comprises a first oxygen-free copper conductor 1021 and a first EPR insulating layer 1022 arranged on the periphery side of the first oxygen-free copper conductor 1021.
The illumination power outer protection layer comprises a first cabling binding layer 1023 wound outside the three illumination power cable cores, a first copper wire braided shielding layer 1024 is arranged on the periphery of the first cabling binding layer 1023, and a third polyurethane sheath 1025 is arranged on the periphery of the first copper wire braided shielding layer 1024.
The control cable units 103 are six and uniformly distributed on the outer circumferential side of the lighting power unit 102. Each control cable unit 103 is composed of a control cable outer sheath and a control cable core disposed inside the control cable outer sheath. The control cable cores are six and uniformly distributed in a circular array, and first filling ropes 1036 made of polypropylene are arranged at central gaps of the six control cable cores. Each of the control cable cores includes a second oxygen-free copper conductor 1031, and a second EPR insulating layer 1032 is provided on the outer peripheral side of the second oxygen-free copper conductor 1031. The outer jacket of the control cable comprises a second cabling and binding layer 1033 wound outside the six control cable cores, a second copper wire braided shielding layer 1034 is arranged on the outer peripheral side of the second cabling and binding layer 1033, and a fourth polyurethane sheath 1035 is arranged on the outer peripheral side of the second copper wire braided shielding layer 1034.
The voltage class of the power cable unit 2 is 3.6/6kV, and the power cable unit 2 is composed of a power cable outer protective layer 201 located on the outer layer and a power cable core 202 arranged on the inner side of the power cable outer protective layer 201. The power cable cores 202 are four and are uniformly arranged on the inner side of the power cable outer sheath 201. And a polyurethane filling layer 203 is filled in a gap between the power cable core 202 and the power cable outer sheath 201.
The power cable core 202 is composed of a third oxygen-free copper conductor 2021, a third EPR insulating layer 2022 arranged on the outer periphery of the third oxygen-free copper conductor 2021, and a third copper wire braided shield layer 2023 arranged on the outer periphery of the third EPR insulating layer 2022 in sequence from inside to outside.
The outer protection layer 201 of the power cable is tightly arranged on the outer periphery of the polyurethane filling layer 203, and comprises a fourth copper wire braided shielding layer 2011 and a fifth polyurethane sheath layer 2012 arranged on the outer periphery of the fourth copper wire braided shielding layer 2011, so that the roundness of the power cable unit 2 is ensured while the power cable core 202 is protected.
The third copper wire braided shield layer 2023 is as dividing the shielding layer, and fourth copper wire braided shield layer 2011 is as always shielding layer, through dividing the screen and always shielding the mode, can satisfy balanced electric field's needs, prevents mutual interference between the signal.
The first 1021, second 1031 and third 2021 oxygen-free copper conductors are made of the second type of annealed copper (i.e., copper conductor with a purity of 99.95%, an oxygen content of not more than 0.005% and a total impurity content of not more than 0.05%), and are used for transmitting current and bearing certain mechanical tension. The first EPR insulating layer, the second EPR insulating layer and the third EPR insulating layer 2022 are all made of ethylene propylene diene monomer rubber, have the comprehensive properties of low density, aging resistance, corrosion resistance, excellent electrical insulation and the like, and are suitable for being used as insulating layers of the umbilical cables. The first copper wire braided shielding layer 1024, the second copper wire braided shielding layer 1034, the third copper wire braided shielding layer 2023 and the fourth copper wire braided shielding layer 2011 are all produced and processed by a copper wire braiding machine, and the braiding density is 45% -75%, preferably 57.6% -62.5%.
The compressed air unit 3 is composed of a high molecular polyethylene pipe 301 and a reinforcing fiber outer sheath 302 which are distributed from inside to outside in sequence. The reinforced fiber outer sheath 302 is woven into a bundle by adopting a high-strength aramid fiber material, is matched with the arrangement of the high-molecular polyethylene pipe 301, is suitable for underwater exploration and exploitation operation and engineering construction with the highest bearable pressure of 200 bar and the maximum applicable water depth of 3500 m, and can effectively meet the requirement of the pressure of a deepwater hydraulic gas circuit pipeline.
In this embodiment, the communication unit 4 is an optical cable unit, which includes a 48-core optical fiber 401, a stainless steel tube 402 is disposed on the outer periphery of the optical fiber 401, a water-blocking ointment 403 is filled between the optical fiber 401 and the stainless steel tube 402, a polyethylene inner sheath 404 is disposed on the outer periphery of the stainless steel tube 402, a second metal wire armor layer 405 is disposed on the outer periphery of the polyethylene inner sheath 404, a layer of high-carbon phosphated steel wire is used as the second metal wire armor layer 405, and a polyethylene outer sheath 406 is disposed on the outer periphery of the second metal wire armor layer 405.
Six second filling ropes 9 are distributed on the outer peripheral side of the control signal unit 1 in a circumferential array mode, and the second filling ropes 9 are distributed in gaps among the control signal unit 1, the power cable unit 2 and the compressed air unit 3. The multi-strand second filling rope 9 is formed by aramid fiber reinforcing ribs with high tensile strength, and specifically aramid fiber 141 or Kevlar75 bundle wires are stranded into a strand, so that the umbilical cable has certain elastic softness while the performances of water pressure resistance, water resistance, tensile strength and the like are not weakened. The central part is provided with a control signal unit 1 with smaller core number and cable diameter, and the outer gap is filled with aramid fiber reinforcing ribs with high tensile strength, so that the requirements of yield protection and shear stress are effectively met. The purpose of the arrangement is that the pressure load of the deep water area is high, and the pressure resistance plays a straight and important role in the umbilical cable.
Second embodiment:
the present embodiment is different from the first embodiment in that: the communication unit 4 employs signal cable units each including a communication cable core and a communication cable outer sheath provided on an outer peripheral side of the communication cable core. The communication cable cores are three and are distributed in a uniform circumferential array. The communication cable core includes a fourth oxygen-free copper conductor 407, and a fourth EPR insulating layer 408 is provided on the outer peripheral side of the fourth oxygen-free copper conductor 407. The outer protection layer of the communication cable comprises a third cabling binding band 409, the third cabling binding band 409 is arranged on the outer side of the three communication cable cores and tightly binds the three communication cable cores, a fourth copper wire braided shielding layer 410 is arranged on the outer peripheral side of the third cabling binding band 409, and a sixth polyurethane sheath 411 is arranged on the outer peripheral side of the fourth copper wire braided shielding layer 410. Two different types of communication units 4 enable one to be selected according to the requirements of the work function in deep water work.
It will be evident to those skilled in the art that the utility model is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the utility model being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Claims (10)
1. The utility model provides a deep water hydraulic pressure is umbilical cable for pile hammer which characterized in that: the cable comprises a cable core and an outer protective layer arranged on the outer peripheral side of the cable core; a gap between the cable core and the outer protective layer is filled with a filler; the cable core comprises a control signal unit, a power cable unit, a compressed air unit and a communication unit; the control signal unit is positioned at the central part of the whole cable core; the power cable unit and the compressed air unit are both provided with a plurality of cables and are arranged around the control signal unit, and second filling ropes are uniformly distributed in the gap between the control signal unit and the power cable unit and between the control signal unit and the compressed air unit.
2. The umbilical for the deepwater hydraulic pile hammer of claim 1, wherein: the outer protective layer comprises a polyolefin inner sheath, an aramid fiber inner liner, a first metal wire armor layer and a first polyurethane sheath, which are sequentially coated on the outer periphery of the cable core from inside to outside; the first metal wire armor layer is formed by spirally armoring two layers of low-carbon galvanized steel wires which are arranged in a reverse staggered mode.
3. The umbilical for the deepwater hydraulic pile hammer of claim 1, wherein: the number of the power cable units is four, and the power cable units are symmetrically distributed on two sides of the control signal unit; the power cable unit comprises a power cable outer protective layer and a plurality of power cable cores arranged on the inner side of the power cable outer protective layer; the power cable core comprises a third oxygen-free copper conductor, a third EPR insulating layer and a third copper wire braided shielding layer which are sequentially arranged from inside to outside; the power cable outer protective layer comprises a fourth copper wire braided shielding layer and a fifth polyurethane sheath layer which are sequentially arranged from inside to outside.
4. The umbilical for the deep water hydraulic pile hammer according to claim 1, wherein: the two compressed air units are symmetrically distributed on two sides of the control signal unit; the compressed air unit comprises a high-molecular polyethylene pipe and a reinforced fiber outer sheath which are sequentially arranged from inside to outside.
5. The umbilical for the deep water hydraulic pile hammer according to claim 1, wherein: the communication unit is arranged close to the outer protective layer; the communication unit comprises an optical fiber, a water-blocking ointment, a stainless steel pipe, a polyethylene inner sheath, a second metal wire armor layer and a polyethylene outer sheath which are sequentially arranged from inside to outside.
6. The umbilical for the deep water hydraulic pile hammer according to claim 1, wherein: the communication unit is arranged close to the outer protective layer; the communication unit comprises a communication cable outer protective layer and three communication cable cores which are uniformly distributed on the inner side of the communication cable outer protective layer; the communication cable core comprises a fourth oxygen-free copper conductor and a fourth EPR insulating layer which are sequentially arranged from inside to outside; the outer protection layer of the communication cable comprises a third cabling binding belt, a third copper wire braided shielding layer and a sixth polyurethane sheath which are sequentially arranged from inside to outside.
7. The umbilical for the deep water hydraulic pile hammer according to claim 6, wherein: the control signal unit comprises a control signal cable core and a second polyurethane sheath coated on the outer peripheral side of the control signal cable core; the control signal cable core comprises a control cable unit and a lighting power unit.
8. The umbilical for the deep water hydraulic pile hammer according to claim 7, wherein: the lighting power unit is positioned at the central part of the whole control signal cable core; the lighting power unit comprises a lighting power outer protective layer and three lighting power cable cores which are uniformly distributed on the inner side of the lighting power outer protective layer; the lighting power cable core comprises a first oxygen-free copper conductor and a first EPR insulating layer which are sequentially arranged from inside to outside; the lighting electric power outer protection layer comprises a first cabling binding layer, a first copper wire braided shielding layer and a third polyurethane sheath which are sequentially arranged from inside to outside.
9. The umbilical for the deep water hydraulic pile hammer according to claim 7, wherein: the number of the control cable units is six, and the control cable units are uniformly distributed on the periphery side of the lighting power unit; the control cable unit comprises a control cable outer protective layer and six control cable cores which are uniformly distributed on the inner side of the control cable outer protective layer; the control cable core comprises a second oxygen-free copper conductor and a second EPR insulating layer which are sequentially arranged from inside to outside; the outer protection layer of the control cable comprises a second cable-forming binding layer, a second copper wire braided shielding layer and a fourth polyurethane sheath which are sequentially arranged from inside to outside.
10. The umbilical for the deepwater hydraulic pile hammer of claim 1, wherein: the filler is made of polyurethane; the second filling rope is made of aramid fiber reinforcing ribs.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2021233313360 | 2021-12-28 | ||
| CN202123331336 | 2021-12-28 |
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| CN217008695U true CN217008695U (en) | 2022-07-19 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116110642A (en) * | 2023-02-08 | 2023-05-12 | 中天科技海缆股份有限公司 | Umbilical cable and preparation method thereof |
| CN116110642B (en) * | 2023-02-08 | 2024-04-26 | 中天科技海缆股份有限公司 | Umbilical cable and preparation method thereof |
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2022
- 2022-04-01 CN CN202220740141.7U patent/CN217008695U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116110642A (en) * | 2023-02-08 | 2023-05-12 | 中天科技海缆股份有限公司 | Umbilical cable and preparation method thereof |
| CN116110642B (en) * | 2023-02-08 | 2024-04-26 | 中天科技海缆股份有限公司 | Umbilical cable and preparation method thereof |
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