CN209912520U - Medium-voltage variable-frequency power cable for ocean engineering - Google Patents
Medium-voltage variable-frequency power cable for ocean engineering Download PDFInfo
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- CN209912520U CN209912520U CN201920750296.7U CN201920750296U CN209912520U CN 209912520 U CN209912520 U CN 209912520U CN 201920750296 U CN201920750296 U CN 201920750296U CN 209912520 U CN209912520 U CN 209912520U
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- cable
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- core
- inner sheath
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- 239000004020 conductor Substances 0.000 claims abstract description 36
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims abstract description 27
- 229910052802 copper Inorganic materials 0.000 claims abstract description 21
- 239000010949 copper Substances 0.000 claims abstract description 21
- 238000009413 insulation Methods 0.000 claims abstract description 11
- 238000006243 chemical reaction Methods 0.000 claims abstract description 8
- 230000017105 transposition Effects 0.000 claims abstract description 7
- 229920003020 cross-linked polyethylene Polymers 0.000 claims abstract description 4
- 239000004703 cross-linked polyethylene Substances 0.000 claims abstract description 4
- 238000007747 plating Methods 0.000 claims abstract description 4
- 239000000945 filler Substances 0.000 claims description 9
- 239000000779 smoke Substances 0.000 claims description 9
- 229910052736 halogen Inorganic materials 0.000 claims description 7
- 150000002367 halogens Chemical class 0.000 claims description 7
- 239000002184 metal Substances 0.000 claims description 7
- 229910052751 metal Inorganic materials 0.000 claims description 7
- 229910001335 Galvanized steel Inorganic materials 0.000 claims description 5
- 239000008397 galvanized steel Substances 0.000 claims description 5
- 238000004804 winding Methods 0.000 claims description 4
- 239000004698 Polyethylene Substances 0.000 claims description 3
- 239000003063 flame retardant Substances 0.000 claims description 3
- -1 polyethylene Polymers 0.000 claims description 3
- 229920000573 polyethylene Polymers 0.000 claims description 3
- 229920000098 polyolefin Polymers 0.000 claims description 3
- 230000001681 protective effect Effects 0.000 claims description 2
- RNFJDJUURJAICM-UHFFFAOYSA-N 2,2,4,4,6,6-hexaphenoxy-1,3,5-triaza-2$l^{5},4$l^{5},6$l^{5}-triphosphacyclohexa-1,3,5-triene Chemical compound N=1P(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP=1(OC=1C=CC=CC=1)OC1=CC=CC=C1 RNFJDJUURJAICM-UHFFFAOYSA-N 0.000 claims 1
- 230000000694 effects Effects 0.000 abstract description 11
- 230000005540 biological transmission Effects 0.000 description 4
- 238000005253 cladding Methods 0.000 description 3
- 238000005457 optimization Methods 0.000 description 3
- 230000005684 electric field Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 229920006267 polyester film Polymers 0.000 description 2
- 229920000181 Ethylene propylene rubber Polymers 0.000 description 1
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 description 1
- 229920001971 elastomer Polymers 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000005060 rubber Substances 0.000 description 1
Images
Abstract
The utility model discloses a middling pressure frequency conversion power cable for ocean engineering, including the cable body, the cable body includes cable core, inner sheath, armor and outer jacket, and inner sheath, armor and outer jacket are connected to the outside suit in proper order of cable core, and the cable core is formed by three insulation core transposition of group, and insulation core's inside is provided with the circular tin-plated copper conductor that sticiss of tin-plating, and copper conductor's skin has set gradually conductor shield, crosslinked polyethylene insulating layer, insulation shield and metallic shield. The conductor adopts a 2-type wire pressing tin-plated copper conductor structure, and as the filling coefficient reaches more than 97 percent, the molded wire conductor structure has smaller conductor outer diameter under the requirements of the same nominal section and direct current resistance, and the weight of the insulating layer and the outer sheath can be reduced, thereby achieving the purposes of reducing the outer diameter of the finished cable and lightening the whole weight of the cable. The split-phase shielding of the cable is changed from traditional copper strip wrapping shielding into tinned copper wire sparse wrapping shielding and copper strip wrapping shielding, and the shielding effect is improved.
Description
Technical Field
The utility model relates to a power cable, concretely relates to middling pressure frequency conversion power cable for ocean engineering belongs to the marine cable application.
Background
With the increase of industrial electric load, high-power frequency converters and variable frequency motors are used in large quantities, and frequency conversion equipment is used more and more in ocean engineering.
Through retrieval, a Chinese patent with application number 201120222467.2 discloses a hard ethylene propylene rubber insulated power cable for ships and ocean engineering. Conductor periphery cladding stereoplasm EP rubbers insulating layer constitutes insulating heart yearn, three constitute the cable after the insulating heart yearn transposition, the crowded package in periphery of cable has low smoke and zero halogen inner liner, the periphery of low smoke and zero halogen inner liner has non-hygroscopicity median around the package, the periphery cladding of non-hygroscopicity median has the metal armor, the periphery of metal armor is equipped with and indulges a packet polyester film area, the crowded package in periphery of indulging a packet polyester film area has low smoke and zero halogen oversheath.
The power cable in the above patent has following not enough, and the major loop cable of connecting inverter motor and converter can produce higher harmonic and square wave at transmission electric energy in-process, can cause the interference to weak current system on every side, if adopt ordinary ocean engineering middling pressure power cable, owing to can't guarantee higher harmonic and square wave and leak, so still can exert an influence to weak current system on every side, influence its signal control and transmission.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a middling pressure frequency conversion power cable for ocean engineering, can produce higher harmonic and square wave in transmission electric energy in-process with the major loop cable of solving current connection inverter motor and converter, can cause the interference to weak electric system on every side, if adopt ordinary ocean engineering middling pressure power cable, owing to can't guarantee that higher harmonic and square wave leak, so still can exert an influence to weak electric system on every side, influence the technical problem of its signal control and transmission.
The purpose of the utility model can be realized by the following technical scheme:
the utility model provides a middling pressure frequency conversion power cable for ocean engineering, includes the cable body, the cable body includes cable core, inner sheath, armor and outer jacket, and inner sheath, armor and outer jacket are connected to the outside suit in proper order of cable core, and the cable core is formed by three insulating core transposition of group, and insulating core's inside is provided with the circular tin-plated copper conductor that sticiss of tin-plating, and copper conductor's skin has set gradually conductor shield, crosslinked polyethylene insulating layer, insulating shield and metallic shield.
Preferably, a plurality of fan-shaped filling strips are arranged between the outside of the cable core and the inner sheath, and a polyethylene protective film is coated between the outside of the cable core and the filling strips.
Preferably, the conductor shielding layer is a semi-conductive shielding layer, the insulation shielding layer is a semi-conductive shielding layer, and the metal shielding layer is composed of a copper wire sparse winding and a soft copper tape winding and wrapping shielding layer.
Preferably, the filler strip is a low-smoke halogen-free fan-shaped filler layer, the inner sheath is a high-flame-retardant low-smoke halogen-free polyolefin inner sheath layer, and the armor layer is a galvanized steel wire woven armor layer body.
The utility model has the advantages that:
1. the cable body is in the use, the conductor adopts 2 types of lines to sticis tin-coated copper conductor structure, the conductor monofilament adopts heterotypic mould to draw into special-shaped monofilament, and the transposition forms after the tin-plating, because the filling factor reaches more than 97%, so compare with circular transposition conductor, under the same nominal cross-section and direct current resistance requirement, molded line conductor structure has less conductor external diameter, because the reduction of conductor external diameter, the weight of insulating layer and oversheath also can reduce to reach and reduce cable finished product external diameter and the whole weight of reduction cable. The split-phase shielding of the cable is changed from traditional copper strip wrapping shielding into tinned copper wire sparse wrapping shielding and copper strip wrapping shielding, so that the shielding effect is increased, the shielding section can be determined according to fault current, the requirements of a homogenized electric field, electrostatic shielding and grounding are met, and the power supply quality is improved. The armor is woven by the galvanized steel wires, so that the mechanical protection effect can be achieved, the general shielding effect can be achieved, the net magnetic shielding effect is achieved, the magnetic field of the cable is prevented from leaking in the frequency conversion engineering, and the shielding effect of the cable is improved.
Drawings
Fig. 1 is a cross-sectional view of the cable body of the present invention.
In the figure: 1. a copper conductor; 2. a conductor shield layer; 3. an insulating layer; 4. an insulating shield layer; 5. a metal shielding layer; 6. filling the strip; 7. an inner sheath; 8. an armor layer; 9. an outer jacket.
Detailed Description
The technical solution of the present invention will be described clearly and completely with reference to the following embodiments, and it should be understood that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by a person of ordinary skill in the art without creative efforts belong to the protection scope of the present invention.
Please refer to fig. 1, a medium voltage variable frequency power cable for ocean engineering, includes a cable body, the cable body includes a cable core, an inner sheath 7, an armor layer 8 and an outer sheath 9, the outer portion of the cable core is sequentially sleeved and connected with the inner sheath 7, the armor layer 8 and the outer sheath 9, the cable core is formed by twisting three groups of insulation wire cores, the inside of the insulation wire cores is provided with a tinned circular compressed tinned copper conductor 1, and the outer layer of the copper conductor 1 is sequentially provided with a conductor shielding layer 2, a crosslinked polyethylene insulating layer 3, an insulation shielding layer 4 and a metal shielding layer 5.
As a technical optimization scheme of the utility model, be provided with the fan-shaped filler strip 6 of a plurality of between the outside of cable core and the inner sheath 7, and the cladding has the polyethylene protection film between the outside of cable core and the filler strip 6.
As a technical optimization scheme of the utility model, conductor shielding layer 2 is the semiconduction shielding layer, and insulating shielding layer 4 is the semiconduction shielding layer, and metal shielding layer 5 is dredged by the copper wire and is wound and soft copper tape is around a packet shielding layer and constitute.
As a technical optimization scheme of the utility model, filler strip 6 is the fan-shaped filling layer of low smoke and zero halogen, and inner sheath 7 is the low smoke and zero halogen polyolefin inner sheath layer of high fire-retardant, and armor 8 is galvanized steel wire and weaves the armor body.
The utility model discloses when using, the conductor adopts 2 types of lines to sticis tin-plated copper conductor structure, the conductor monofilament adopts heterotypic mould to draw into special-shaped monofilament, the transposition forms after the tinning again, because the fill factor reaches more than 97%, so compare with circular stranded conductor, same nominal cross-section and direct current resistance require down, molded lines conductor structure has less conductor external diameter, because the reduction of conductor external diameter, the weight of insulating layer and oversheath also can reduce, thereby reach and reduce cable finished product external diameter and alleviate the whole weight of cable. The split-phase shielding of the cable is changed from traditional copper strip wrapping shielding into tinned copper wire sparse wrapping shielding and copper strip wrapping shielding, so that the shielding effect is increased, the shielding section can be determined according to fault current, the requirements of a homogenized electric field, electrostatic shielding and grounding are met, and the power supply quality is improved. The armor is woven by the galvanized steel wires, so that the mechanical protection effect can be achieved, the general shielding effect can be achieved, the net magnetic shielding effect is achieved, the magnetic field of the cable is prevented from leaking in the frequency conversion engineering, and the shielding effect of the cable is improved.
The preferred embodiments of the present invention disclosed above are intended only to help illustrate the present invention. The preferred embodiments are not intended to be exhaustive or to limit the invention to the precise embodiments disclosed. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the invention and its practical applications, to thereby enable others skilled in the art to best understand the invention for and utilize the invention. The present invention is limited only by the claims and their full scope and equivalents.
Claims (4)
1. The utility model provides a middling pressure frequency conversion power cable for ocean engineering, a serial communication port, including the cable body, the cable body includes cable core, inner sheath (7), armor (8) and outer jacket (9), and inner sheath (7), armor (8) and outer jacket (9) are connected to the outside suit in proper order of cable core, and the cable core is formed by three insulation core transposition of group, and insulation core's inside is provided with the circular tin-plated copper conductor (1) that sticiss of tin-plating, and the skin of copper conductor (1) has set gradually conductor shield (2), crosslinked polyethylene insulating layer (3), insulation shield (4) and metallic shield (5).
2. The medium-voltage variable-frequency power cable for ocean engineering according to claim 1, wherein a plurality of fan-shaped filler strips (6) are arranged between the outer part of the cable core and the inner sheath (7), and a polyethylene protective film is coated between the outer part of the cable core and the filler strips (6).
3. The medium-voltage variable-frequency power cable for ocean engineering according to claim 1, wherein the conductor shielding layer (2) is a semi-conductive shielding layer, the insulation shielding layer (4) is a semi-conductive shielding layer, and the metal shielding layer (5) is composed of a copper wire loose winding and a soft copper tape winding shielding layer.
4. The medium voltage variable frequency power cable for ocean engineering according to claim 2, wherein the filler strip (6) is a low smoke zero halogen fan-shaped filler layer, the inner sheath (7) is a high flame retardant low smoke zero halogen polyolefin inner sheath layer, and the armor layer (8) is a galvanized steel wire woven armor layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920750296.7U CN209912520U (en) | 2019-05-23 | 2019-05-23 | Medium-voltage variable-frequency power cable for ocean engineering |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920750296.7U CN209912520U (en) | 2019-05-23 | 2019-05-23 | Medium-voltage variable-frequency power cable for ocean engineering |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209912520U true CN209912520U (en) | 2020-01-07 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920750296.7U Active CN209912520U (en) | 2019-05-23 | 2019-05-23 | Medium-voltage variable-frequency power cable for ocean engineering |
Country Status (1)
| Country | Link |
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| CN (1) | CN209912520U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110120277A (en) * | 2019-05-23 | 2019-08-13 | 安徽新特华宇电缆有限公司 | A kind of ocean engineering medium voltage variable frequency power cable and its manufacturing method |
-
2019
- 2019-05-23 CN CN201920750296.7U patent/CN209912520U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110120277A (en) * | 2019-05-23 | 2019-08-13 | 安徽新特华宇电缆有限公司 | A kind of ocean engineering medium voltage variable frequency power cable and its manufacturing method |
| CN110120277B (en) * | 2019-05-23 | 2024-03-29 | 安徽新特华宇电缆有限公司 | Medium-voltage variable-frequency power cable for ocean engineering and manufacturing method thereof |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address |
Address after: 238300 building 12, Gaogou Industrial Park (luojiatao Village), Gaogou Town, Wuwei County, Wuhu City, Anhui Province Patentee after: Anhui Xinte Huayu New Material Technology Co.,Ltd. Country or region after: China Address before: 238300 building 12, Gaogou Industrial Park (luojiatao Village), Gaogou Town, Wuwei County, Wuhu City, Anhui Province Patentee before: Anhui Xintehuayu Cable Co.,Ltd. Country or region before: China |