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CN107689265B - Floating cable - Google Patents

Floating cable Download PDF

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Publication number
CN107689265B
CN107689265B CN201710790059.9A CN201710790059A CN107689265B CN 107689265 B CN107689265 B CN 107689265B CN 201710790059 A CN201710790059 A CN 201710790059A CN 107689265 B CN107689265 B CN 107689265B
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CN
China
Prior art keywords
layer
cable
polyethylene
floating
wires
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Application number
CN201710790059.9A
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Chinese (zh)
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CN107689265A (en
Inventor
叶金国
叶文岳
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Shanghai King Wire & Cable Co Ltd
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Shanghai King Wire & Cable Co Ltd
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Priority to CN201710790059.9A priority Critical patent/CN107689265B/en
Publication of CN107689265A publication Critical patent/CN107689265A/en
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    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01BCABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B7/00Insulated conductors or cables characterised by their form
    • H01B7/12Floating cables
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01BCABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B7/00Insulated conductors or cables characterised by their form
    • H01B7/17Protection against damage caused by external factors, e.g. sheaths or armouring
    • H01B7/18Protection against damage caused by wear, mechanical force or pressure; Sheaths; Armouring
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01BCABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B9/00Power cables
    • H01B9/003Power cables including electrical control or communication wires
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01BCABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B9/00Power cables
    • H01B9/02Power cables with screens or conductive layers, e.g. for avoiding large potential gradients

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  • Manufacture Of Porous Articles, And Recovery And Treatment Of Waste Products (AREA)
  • Insulated Conductors (AREA)

Abstract

The invention discloses a floating cable which comprises a sheath, a first shielding layer, a floating layer, a plurality of conductive wires and a plurality of signal wires, wherein the conductive wires and the signal wires are wrapped in the floating layer, the signal wires and the conductive wires are sequentially encircled to form an inner ring and an outer ring, a second shielding layer is arranged between the inner ring and the outer ring, foamed polyethylene is filled between the inner ring and the outer ring, the conductive wires and the signal wires inside the sheath and the first shielding layer can be protected and anti-interference, the signal wires and the conductive wires are isolated through the second shielding layer, and then the conductive wires cannot interfere with the signal wires. The foamed polyethylene composition reduces the density of the cable, thereby enabling the cable to float on the water.

Description

Floating cable
Technical Field
The invention relates to a power transmission communication line, in particular to a floating cable.
Background
The cable is a tool composed of a plurality of wires and used for transmitting electric energy or electric signals, the use of the electric energy and the electric signals is more and more common with the continuous progress of the society, and the cable becomes an indispensable part in our lives. In the waters such as ocean and river, mechanical equipment is needed due to high-speed development, and therefore cables are also needed for power supply and communication, common cables are mostly adopted for power supply and communication in the prior art, and the common cables are difficult to support on the water surface, so that the Chinese patent with the publication number of CN101299355A discloses a floating cable which comprises an inner sheath, an outer sheath and a conductor, wherein the outer sheath is formed by foamed polyethylene, so that the cable has stronger buoyancy and floats on the water surface, but the function of the cable is single and needs to be improved.
Disclosure of Invention
The invention aims to provide a floating cable, which has multiple functions through the arrangement of various cables.
The technical purpose of the invention is realized by the following technical scheme:
The utility model provides a float cable, includes sheath, first shielding layer, floats the layer and wraps up in floating intraformational a plurality of conductor wires and a plurality of signal line, signal line and conductor wire encircle formation inner ring and outer loop in proper order, be provided with the second shielding layer between inner ring and the outer loop, it has the foaming polyethylene to all fill in inner ring and the outer loop.
Through adopting above-mentioned technical scheme, sheath and first shielding layer can let inside conductor wire and signal line can protect and anti-jamming, keep apart signal line and conductor wire through the second shielding layer, and then let the conductor wire can not disturb the signal line, and the setting through multiple line type lets the cable function various. The foamed polyethylene composition reduces the density of the cable, thereby enabling the cable to float on the water.
The invention is further configured to: and nylon layers are arranged on the conductive wires and the signal wires.
Through adopting above-mentioned technical scheme, the setting on nylon layer can let the structural strength of conductor wire and signal line high to its tensile strength is high when using, can not be broken easily, has improved the life of cable to a certain extent.
The invention is further configured to: the floating layer comprises an inner layer, an outer layer and a plurality of supporting strips for supporting the inner layer and the outer layer.
Through adopting above-mentioned technical scheme, the setting of support bar lets to form the space between inlayer, the skin, lets its quality that lets whole cable less to let the density ratio of cable less, thereby let it float on the surface of water.
The invention is further configured to: the inner layer and the outer layer are both made of foamed polyethylene.
By adopting the technical scheme, the densities of the inner layer and the outer layer are lower, and the whole cable can float on the water surface.
The invention is further configured to: the formula of the foamed polyethylene comprises: the polyethylene, the cross-linking agent and the foaming agent are mixed according to the following ratio: 100:1-5:5-15.
The invention is further configured to: firstly, polyethylene is heated to 110 ℃ to melt, then a foaming agent and a cross-linking agent are sequentially added in proportion for mixing, and stirring is carried out for 3min under the constant temperature condition of 90-100 ℃.
By adopting the technical scheme, the polyethylene is heated and melted, the foaming agent and the cross-linking agent are added, the materials are uniformly mixed by stirring, the materials are more stable in the stirring process under the constant temperature condition, and are uniformly mixed by stirring for 3min, so that the materials are uniformly mixed when being foamed.
the invention is further configured to: after the foaming agent and the cross-linking agent are added, short fibers are added and mixed, and the short fibers are arranged into a curled structure.
The invention is further configured to: the ratio of polyethylene to short fibers was 5: 1.
Through adopting above-mentioned technical scheme, the short-staple of crimp structure to let the joint strength between the polyethylene than higher, thereby improved the tensile property of whole cable.
Drawings
FIG. 1 is a block diagram of a floating cable;
Fig. 2 is a structural view of the conductive thread.
In the figure: 1. a sheath; 2. a first shielding layer; 21. a conductive thread; 22. a hollow fiber; 3. A floating layer; 31. an inner layer; 32. an outer layer; 33. a supporting strip; 4. a conductive wire; 5. a nylon layer; 6. a signal line; 7. a second shielding layer; 8. an inner ring; 9. an outer ring; 10. and (3) coating the metal.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
A floating cable, as shown in figure 1, comprises a sheath 1, a first shielding layer 2, a floating layer 3, a plurality of conductive wires 4 and a plurality of signal wires 6, wherein the conductive wires 4 and the signal wires 6 are wrapped in the floating layer 3, the signal wires 6 and the conductive wires 4 are sequentially encircled to form an inner ring 8 and an outer ring 9, and the cable can have multiple functions of power transmission and signal transmission. Be provided with second shielding layer 7 between inner ring 8 and outer loop 9, sheath 1 and first shielding layer 2 can let inside conducting wire 4 and signal line 6 can be protected and anti-jamming, keep apart signal line 6 and conducting wire 4 through second shielding layer 7, and then let conducting wire 4 can not disturb signal line 6. The inner ring 8 and the outer ring 9 are both filled with foamed polyethylene. The foamed polyethylene composition reduces the density of the cable, thereby enabling the cable to float on the water.
As shown in fig. 1 and 2, the sheath 1 is made of insulating rubber and made of a material having a high waterproof grade so that water does not enter the inside. The first shielding layer 2 may be formed by weaving conductive wires 21, the conductive wires 21 may be formed by relatively light fibers, and generally, hollow fibers 22 may be used, and the conductive wires 21 may be formed by coating conductive metal coating 10 on the surface thereof. Meanwhile, in order to reduce the weight of the first shielding layer 2, the metal coating 10 may be directly coated on the floating layer 3. In addition, the second shielding layer 7 is coated with a metal coating 10, after the inner ring 8 is filled with foamed polyethylene, the metal coating 10 is coated on the surface thereof, and then the outer ring 9 is wound and filled with foamed polyethylene, so that the inner ring 8 and the outer ring 9 are formed, and the second shielding layer 7 is left between the inner ring 8 and the outer ring 9.
As shown in fig. 1, the floating layer 3 includes an inner layer 31, an outer layer 32 and a plurality of support bars 33 for supporting the inner layer 31 and the outer layer 32, and the support bars 33 are arranged to form a space between the inner layer 31 and the outer layer 32, so that the cable has a relatively low density and can float on the water surface. In addition, support strips 33 may be configured in a corrugated configuration, such that support strips 33 provide a relatively smooth support for inner layer 31 and outer layer 32. The inner layer 31 and the outer layer 32 are both made of foamed polyethylene, so that the density is low, and the inner layer can float on the water surface more easily.
As shown in fig. 1, in order to increase the tensile strength of the lead, nylon layers 5 are provided on both the conductive wire 4 and the signal wire 6, and the strength of the nylon layers 5 improves the resistance of the lead. In order to prevent signals from interfering with each other between the signal lines 6, a metal coating 10 is coated on each signal line 6, and is coated on the nylon layer 5 of the signal line 6. In this embodiment, the metal coating 10 may be coated with one or more of copper, aluminum, or silver.
Wherein, the formula of the foamed polyethylene is as follows: polyethylene, a cross-linking agent and a foaming agent.
The foaming agent is composed of one or more of azodicarbonamide, dichlorotetrafluoroethane, trichlorofluorodecane and trichloro-aerofluoroethane.
the cross-linking agent is one or more of ditert-butane peroxide, dicumyl peroxide, 2, 5-dimethyl-2, 5-ditert-butyl peroxy hexane, 2, 5-dimethyl-2, 5-ditert-butyl peroxy hexyne and 1, 3-ditert-butyl peroxy isopropyl benzene.
The mass parts of the polyethylene, the foaming agent and the crosslinking agent are as follows:
Polyethylene Crosslinking agent Foaming agent
Example 1 100 1 15
Example 2 100 1 10
Example 3 100 1 5
Example 4 100 3 15
Example 5 100 3 10
Example 6 100 3 5
Example 7 100 5 15
Example 8 100 5 10
Example 9 100 5 5
Firstly heating polyethylene to 110 ℃ for melting, then sequentially adding a foaming agent and a crosslinking agent in proportion for mixing, wherein the fluidity of the polyethylene needs to be ensured in the stirring process, so that the polyethylene can be fully mixed with the foaming agent and the crosslinking agent, and then stirring is carried out at the constant temperature of 90 ℃ or 100 ℃, and meanwhile, in the process, the foaming agent and the crosslinking agent are relatively stable and stirred for 3min, so that the polyethylene is uniformly stirred.
the short fibers are mixed after the foaming agent and the crosslinking agent are added, and the stirring can be performed after the short fibers are finished by the motor, and at this time, the foaming agent, the crosslinking agent and the short fibers can be simultaneously stirred. Or adding short fiber after the foaming agent, the cross-linking agent and the polyethylene are uniformly stirred, and continuously stirring for 2min or 3min under the same condition to uniformly mix the short fiber and the polyethylene. The weight portion ratio of polyethylene to short fiber is 5:1, setting the short fibers into a curled structure.
After the materials in the above examples 1-9 are foamed according to the requirements, the materials with the same shape and volume are tested to measure the density and the tensile strength, the control group 1 is foamed according to the formula of example 6, but the short fibers are not added, the control group 2 is tested by using common polyethylene, the test method is performed according to GB1040-79 plastic tensile test method, and finally the following table is measured:
Density (g/cm 3) Tensile strength/MPa
Example 1 0.40 5.43
Example 2 0.49 5.98
Example 3 0.60 6.49
Example 4 0.44 6.02
example 5 0.52 6.65
Example 6 0.66 7.02
Example 7 0.59 6.43
Example 8 0.64 6.92
Example 9 0.71 7.58
Control group 1 0.63 5.05
Control group 2 0.93 6.37
Can derive through the table, can improve the tensile strength of foamed polyethylene greatly through adding the short-staple to in the use of reality, let its cable can have better tensile strength, in addition, at the in-process of using, improved the tensile strength of cable, simultaneously, its good foamability can let it have less density, combine the structure of cable floating layer 3, let it can effectually float on the surface of water.
The present embodiment is only for explaining the present invention, and it is not limited to the present invention, and those skilled in the art can make modifications of the present embodiment without inventive contribution as needed after reading the present specification, but all of them are protected by patent law within the scope of the claims of the present invention.

Claims (3)

1. A kind of floating cable, its characteristic is: the floating type cable is characterized by comprising a sheath (1), a first shielding layer (2), a floating layer (3), and a plurality of conductive wires (4) and a plurality of signal wires (6) wrapped in the floating layer (3), wherein the signal wires (6) and the conductive wires (4) are sequentially encircled to form an inner ring (8) and an outer ring (9), a second shielding layer (7) is arranged between the inner ring (8) and the outer ring (9), foamed polyethylene is filled in the inner ring (8) and the outer ring (9), nylon layers (5) are arranged on the conductive wires (4) and the signal wires (6), the floating layer (3) comprises an inner layer (31), an outer layer (32) and a plurality of support bars (33) used for supporting the inner layer (31) and the outer layer (32), and the support bars are arranged to be of a corrugated structure;
The inner layer (31) and the outer layer (32) are both made of foamed polyethylene;
The formula of the foamed polyethylene comprises: the polyethylene, the cross-linking agent and the foaming agent are mixed according to the following ratio: 100:1-5: 5-15; after the foaming agent and the cross-linking agent are added, short fibers are added and mixed, and the short fibers are arranged into a curled structure.
2. The buoyant cable of claim 1 wherein: firstly, polyethylene is heated to 110 ℃ to melt, then a foaming agent and a cross-linking agent are sequentially added in proportion for mixing, and stirring is carried out for 3min under the constant temperature condition of 90-100 ℃.
3. The buoyant cable of claim 1 wherein: the ratio of polyethylene to short fibers was 5: 1.
CN201710790059.9A 2017-09-05 2017-09-05 Floating cable Active CN107689265B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201710790059.9A CN107689265B (en) 2017-09-05 2017-09-05 Floating cable

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201710790059.9A CN107689265B (en) 2017-09-05 2017-09-05 Floating cable

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Publication Number Publication Date
CN107689265A CN107689265A (en) 2018-02-13
CN107689265B true CN107689265B (en) 2019-12-10

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Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109448900A (en) * 2018-10-10 2019-03-08 惠州市太金电线电缆有限公司 A kind of flexible floatation cable
CN110098003B (en) * 2019-05-23 2024-01-19 远程电缆股份有限公司 Accompanying floating cable for ocean platform

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1343738A (en) * 2000-09-20 2002-04-10 中国石油化工股份有限公司 Chemically cross-linked millipore polyethene material and its preparing process
CN101996708A (en) * 2010-10-19 2011-03-30 远东电缆有限公司 Offshore floating wind power generation cable
CN203351255U (en) * 2013-08-05 2013-12-18 唐山市海丰线缆有限公司 Novel ocean detection cable
CN103871580A (en) * 2014-02-27 2014-06-18 安徽江淮电缆集团有限公司 High-floatation performance trailing cable used for ocean exploration
CN105440425A (en) * 2015-12-21 2016-03-30 福建梭罗复合材料研究有限公司 Organic fiber enhanced foaming material and preparation method thereof
CN206075879U (en) * 2016-09-30 2017-04-05 昆山信昌电线电缆有限公司 A kind of floating on water surface cable

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1343738A (en) * 2000-09-20 2002-04-10 中国石油化工股份有限公司 Chemically cross-linked millipore polyethene material and its preparing process
CN101996708A (en) * 2010-10-19 2011-03-30 远东电缆有限公司 Offshore floating wind power generation cable
CN203351255U (en) * 2013-08-05 2013-12-18 唐山市海丰线缆有限公司 Novel ocean detection cable
CN103871580A (en) * 2014-02-27 2014-06-18 安徽江淮电缆集团有限公司 High-floatation performance trailing cable used for ocean exploration
CN105440425A (en) * 2015-12-21 2016-03-30 福建梭罗复合材料研究有限公司 Organic fiber enhanced foaming material and preparation method thereof
CN206075879U (en) * 2016-09-30 2017-04-05 昆山信昌电线电缆有限公司 A kind of floating on water surface cable

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