CN217955509U - Power cable protective sheath based on crosslinked polyethylene - Google Patents
Power cable protective sheath based on crosslinked polyethylene Download PDFInfo
- Publication number
- CN217955509U CN217955509U CN202222182615.3U CN202222182615U CN217955509U CN 217955509 U CN217955509 U CN 217955509U CN 202222182615 U CN202222182615 U CN 202222182615U CN 217955509 U CN217955509 U CN 217955509U
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- China
- Prior art keywords
- polyethylene
- protective sheath
- power cable
- insulation protection
- insulating protective
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- 230000001681 protective effect Effects 0.000 title claims abstract description 51
- 229920003020 cross-linked polyethylene Polymers 0.000 title claims abstract description 20
- 239000004703 cross-linked polyethylene Substances 0.000 title claims abstract description 20
- 239000004698 Polyethylene Substances 0.000 claims abstract description 47
- -1 polyethylene Polymers 0.000 claims abstract description 47
- 229920000573 polyethylene Polymers 0.000 claims abstract description 47
- 239000003063 flame retardant Substances 0.000 claims abstract description 31
- 229920001971 elastomer Polymers 0.000 claims abstract description 30
- 239000005060 rubber Substances 0.000 claims abstract description 30
- 239000004677 Nylon Substances 0.000 claims abstract description 22
- 229920001778 nylon Polymers 0.000 claims abstract description 22
- 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 abstract description 19
- 238000009413 insulation Methods 0.000 claims abstract description 17
- 230000003014 reinforcing effect Effects 0.000 claims abstract description 11
- 238000004806 packaging method and process Methods 0.000 claims abstract description 9
- 230000000149 penetrating effect Effects 0.000 claims description 3
- 238000005299 abrasion Methods 0.000 claims 3
- 238000005728 strengthening Methods 0.000 abstract description 13
- 230000000694 effects Effects 0.000 abstract description 4
- 230000006835 compression Effects 0.000 abstract description 3
- 238000007906 compression Methods 0.000 abstract description 3
- 206010040007 Sense of oppression Diseases 0.000 abstract description 2
- 238000001125 extrusion Methods 0.000 abstract 1
- 239000000463 material Substances 0.000 description 6
- 239000006229 carbon black Substances 0.000 description 3
- 238000005260 corrosion Methods 0.000 description 2
- 230000007797 corrosion Effects 0.000 description 2
- 229920001903 high density polyethylene Polymers 0.000 description 2
- 239000004700 high-density polyethylene Substances 0.000 description 2
- 238000004804 winding Methods 0.000 description 2
- 239000006057 Non-nutritive feed additive Substances 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000003139 buffering effect Effects 0.000 description 1
- 239000004595 color masterbatch Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 238000005204 segregation Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000003878 thermal aging Methods 0.000 description 1
Images
Classifications
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A30/00—Adapting or protecting infrastructure or their operation
- Y02A30/14—Extreme weather resilient electric power supply systems, e.g. strengthening power lines or underground power cables
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- Insulated Conductors (AREA)
Abstract
The utility model discloses a power cable protective sleeve based on crosslinked polyethylene, which comprises a polyethylene waterproof shell, wherein buffer rubber is arranged inside the polyethylene waterproof shell, reinforcing ribs are arranged between the buffer rubber, an insulating protective sleeve is arranged inside the buffer rubber, a nylon wear-resistant layer is arranged inside the insulating protective sleeve, and a flame-retardant inner cavity is arranged inside the nylon wear-resistant layer; and the insulation protection plates are fixed at the front end and the rear end of the insulation protection sleeve, and an elastic packaging plate is arranged between the insulation protection plates and the polyethylene waterproof shell. This power cable protective sheath based on crosslinked polyethylene can play the supporting role to the waterproof shell of polyethylene through the strengthening rib that sets up, avoids the waterproof shell of polyethylene to warp the inside cable main part of extrusion under the external force oppression to set up cushion rubber between the strengthening rib and can play certain cushioning effect, absorb partly external force, improve the compression performance of the waterproof shell of polyethylene.
Description
Technical Field
The utility model relates to a power cable protective sheath technical field specifically is a power cable protective sheath based on crosslinked polyethylene.
Background
The black high-density polyethylene material used as the sheath material is prepared by selecting the high-density polyethylene base resin special for the sheath material, adding high-quality carbon black color master batch and other related processing aids, and mixing and granulating. Factors such as high-quality carbon black mother content, carbon black granularity and dispersity have great influence on long-term performance of the optical cable such as ultraviolet radiation aging resistance, thermal aging resistance and the like.
The conventional power cable protective sleeve is generally simple in structure, and the protective sleeve is easily crushed by external force to influence the normal use of a power cable in the protective sleeve.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a power cable protective sheath based on crosslinked polyethylene to solve the problem that proposes in the above-mentioned background art.
In order to achieve the above object, the utility model provides a following technical scheme: a crosslinked polyethylene-based power cable protective sheath comprising:
the polyethylene waterproof shell is internally provided with buffer rubbers, reinforcing ribs are arranged between the buffer rubbers, an insulating protective sleeve is arranged inside the buffer rubbers, a nylon wear-resistant layer is arranged inside the insulating protective sleeve, and a flame-retardant inner cavity is arranged inside the nylon wear-resistant layer;
and the insulation protection plates are fixed at the front end and the rear end of the insulation protection sleeve, and an elastic packaging plate is arranged between the insulation protection plates and the polyethylene waterproof shell.
Preferably, the flame-retardant inner cavity is further provided with:
and the cable main body is arranged inside the flame-retardant inner cavity in a penetrating manner.
Preferably, the cable main body is matched with the inner diameter of the flame-retardant inner cavity in size, and the cable main body penetrates through the inner part of the flame-retardant inner cavity.
Preferably, the polyethylene waterproof case passes through cushion rubber and insulating protective sheath elastic connection, and cushion rubber closely laminates with polyethylene waterproof case and insulating protective sheath respectively.
Preferably, the strengthening rib runs through in the inside of cushion rubber, and the diameter of strengthening rib equals the distance between polyethylene waterproof case and the insulating protective sheath to the centre of a circle equidistance evenly distributed of strengthening rib along polyethylene waterproof case.
Preferably, the nylon wearing layer twines in the outside of fire-retardant inner chamber, and the nylon wearing layer is S type structure to the nylon wearing layer closely laminates with fire-retardant inner chamber and insulating protective sheath.
Preferably, the insulation protection board is bonded with the polyethylene waterproof shell through the elastic packaging board, and the insulation protection board and the polyethylene waterproof shell form an elastic structure through the elastic packaging board.
Compared with the prior art, the utility model provides a power cable protective sheath based on crosslinked polyethylene possesses following beneficial effect:
1. the utility model adopts the cross-linked polyethylene material to the polyethylene waterproof shell, which greatly increases the performance of the polyethylene and increases the heat resistance and corrosion resistance of the protective sleeve, thereby comprehensively protecting the internal cable main body;
2. the utility model discloses a strengthening rib that sets up can play the supporting role to polyethylene waterproof shell, avoids polyethylene waterproof shell to warp under the external force oppression and extrudees the cable main part of inside to set up cushion rubber between the strengthening rib and can play certain cushioning effect, absorb some external force, improve the compression performance of polyethylene waterproof shell;
3. the utility model discloses a nylon wearing layer that sets up can increase the frictional action between fire-retardant inner chamber and the insulating protective sheath, fire-retardant inner chamber and insulating protective sheath alternate segregation when avoiding dragging to the nylon wearing layer wearability is better, and the parcel can be protected fire-retardant inner chamber in fire-retardant inner chamber's outside.
Drawings
FIG. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is a schematic structural view of the insulating protective sheath of the present invention;
FIG. 3 is a schematic structural view of the nylon wear-resistant layer of the present invention;
fig. 4 is a schematic view of the cross-sectional structure of the present invention.
In the figure: 1. a polyethylene waterproof housing; 2. an insulating protection plate; 3. an elastic package plate; 4. a cable body; 5. a nylon wear layer; 6. a flame-retardant inner cavity; 7. an insulating protective sleeve; 8. reinforcing ribs; 9. and (4) buffer rubber.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts all belong to the protection scope of the present invention.
As shown in fig. 1 and 2, a power cable protective sheath based on crosslinked polyethylene comprises: insulation protection board 2, it fixes both ends around insulating protective sheath 7, be provided with elasticity packaging board 3 between insulation protection board 2 and the polyethylene waterproof case 1, polyethylene waterproof case 1 through setting up adopts the crosslinked polyethylene material, the performance of polyethylene has been increased substantially, the heat-resisting corrosion resistance of multiplicable protective sheath, thereby can carry out comprehensive protection to inside cable main part 4, insulation protection board 2 passes through elasticity packaging board 3 and the waterproof case 1 bonding of polyethylene is connected, and insulation protection board 2 constitutes elastic construction through elasticity packaging board 3 and the waterproof case 1 of polyethylene, cable main part 4, it wears to establish the inside at fire-retardant inner chamber 6, cable main part 4 is identical with the internal diameter size of fire-retardant inner chamber 6, and cable main part 4 runs through in the inside of fire-retardant inner chamber 6.
As shown in fig. 3 and 4, a power cable protective sheath based on crosslinked polyethylene comprises: polyethylene waterproof case 1, polyethylene waterproof case 1 'S inside is provided with cushion rubber 9, and be provided with strengthening rib 8 between the cushion rubber 9, polyethylene waterproof case 1 passes through cushion rubber 9 and insulating protective sheath 7 elastic connection, and cushion rubber 9 closely laminates with polyethylene waterproof case 1 and insulating protective sheath 7 respectively, strengthening rib 8 runs through the inside in cushion rubber 9, and the diameter of strengthening rib 8 equals the distance between polyethylene waterproof case 1 and insulating protective sheath 7, and strengthening rib 8 is along polyethylene waterproof case 1' S centre of a circle equidistance evenly distributed, strengthening rib 8 through setting up can play the supporting role to polyethylene waterproof case 1, avoid polyethylene waterproof case 1 to warp under the external force pressure and extrude inside cable main part 4, and set up cushion rubber 9 between strengthening rib 8 and can play certain cushioning effect, absorb partly external force, improve the compression performance of polyethylene waterproof case 1, the internally mounted of cushion rubber 9 has insulating protective sheath 7, and insulating protective sheath 7 'S inside is equipped with nylon wearing layer 5, the inside of nylon wearing layer 5 is provided with fire-retardant winding inner chamber 6, nylon wearing layer 5' S outside winding in fire-retardant inner chamber 6, and fire-retardant inner chamber 5 and nylon inner chamber 6 can be good mutual increase through nylon insulating protective sheath 7 and nylon inner chamber 6.
The working principle is as follows: when the power cable protective sleeve based on the crosslinked polyethylene is used, firstly, the buffer rubber 9 is bonded in the polyethylene waterproof shell 1, an inner hole with the same diameter as the reinforcing rib 8 is formed in the buffer rubber 9, and the reinforcing rib 8 penetrates into the buffer rubber 9 to adjust the position; secondly, penetrating the insulating protective sleeve 7 into the buffer rubber 9, and fixedly connecting the insulating protective plate 2 with the polyethylene waterproof shell 1 by using the elastic packaging plate 3; then, the cable body 4 is inserted into the flame-retardant inner cavity 6, so that the installation work of the protective sleeve is completed; finally, when the waterproof polyethylene shell 1 is extruded by external force, the reinforcing ribs 8 support the waterproof polyethylene shell 1, and meanwhile, the buffer rubber 9 between the reinforcing ribs 8 plays a certain buffering role, so that the deformation of the inner flame-retardant cavity 6 is avoided, the cable body 4 is crushed, and the flame-retardant cavity 6 is made of flame-retardant materials and has a certain flame-retardant effect.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (7)
1. A power cable protective sheath based on crosslinked polyethylene, comprising:
the waterproof polyethylene shell (1), buffer rubbers (9) are arranged inside the waterproof polyethylene shell (1), reinforcing ribs (8) are arranged between the buffer rubbers (9), an insulating protective sleeve (7) is arranged inside the buffer rubbers (9), a nylon wear-resistant layer (5) is arranged inside the insulating protective sleeve (7), and a flame-retardant inner cavity (6) is arranged inside the nylon wear-resistant layer (5);
the insulation protection plate (2) is fixed at the front end and the rear end of the insulation protection sleeve (7), and an elastic packaging plate (3) is arranged between the insulation protection plate (2) and the polyethylene waterproof shell (1).
2. A power cable sheath based on cross-linked polyethylene according to claim 1, characterized in that the flame retardant inner chamber (6) is further provided with:
and the cable main body (4) is arranged in the flame-retardant inner cavity (6) in a penetrating manner.
3. A power cable protective sheath based on crosslinked polyethylene according to claim 2, characterized in that the cable body (4) is matched with the inner diameter of the flame-retardant inner cavity (6), and the cable body (4) penetrates the flame-retardant inner cavity (6).
4. A power cable protective sheath based on crosslinked polyethylene according to claim 1, characterized in that the polyethylene waterproof casing (1) is elastically connected with the insulating protective sheath (7) through a buffer rubber (9), and the buffer rubber (9) is tightly attached to the polyethylene waterproof casing (1) and the insulating protective sheath (7), respectively.
5. A power cable protective sheath based on crosslinked polyethylene according to claim 1, characterized in that the reinforcing ribs (8) penetrate through the inside of the cushion rubber (9), the diameter of the reinforcing ribs (8) is equal to the distance between the waterproof polyethylene sheath (1) and the insulating protective sheath (7), and the reinforcing ribs (8) are evenly distributed along the center of the waterproof polyethylene sheath (1).
6. A power cable protective sheath based on crosslinked polyethylene according to claim 1, wherein the nylon abrasion resistant layer (5) is wound outside the flame retardant inner cavity (6), the nylon abrasion resistant layer (5) is of an S-shaped structure, and the nylon abrasion resistant layer (5) is tightly attached to the flame retardant inner cavity (6) and the insulating protective sheath (7).
7. A power cable protective sheath based on crosslinked polyethylene according to claim 1, characterized in that the insulation protection plate (2) is adhesively connected with the polyethylene waterproof casing (1) through the elastic encapsulating plate (3), and the insulation protection plate (2) forms an elastic structure with the polyethylene waterproof casing (1) through the elastic encapsulating plate (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222182615.3U CN217955509U (en) | 2022-08-18 | 2022-08-18 | Power cable protective sheath based on crosslinked polyethylene |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222182615.3U CN217955509U (en) | 2022-08-18 | 2022-08-18 | Power cable protective sheath based on crosslinked polyethylene |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217955509U true CN217955509U (en) | 2022-12-02 |
Family
ID=84231982
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222182615.3U Expired - Fee Related CN217955509U (en) | 2022-08-18 | 2022-08-18 | Power cable protective sheath based on crosslinked polyethylene |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217955509U (en) |
-
2022
- 2022-08-18 CN CN202222182615.3U patent/CN217955509U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20221202 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |