CN214956121U - High-reliability waterproof crosslinked polyethylene cable - Google Patents
High-reliability waterproof crosslinked polyethylene cable Download PDFInfo
- Publication number
- CN214956121U CN214956121U CN202121235146.6U CN202121235146U CN214956121U CN 214956121 U CN214956121 U CN 214956121U CN 202121235146 U CN202121235146 U CN 202121235146U CN 214956121 U CN214956121 U CN 214956121U
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- water
- crosslinked polyethylene
- layer
- cable
- blocking
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- 229920003020 cross-linked polyethylene Polymers 0.000 title claims abstract description 55
- 239000004703 cross-linked polyethylene Substances 0.000 title claims abstract description 55
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 49
- 230000002209 hydrophobic effect Effects 0.000 claims abstract description 19
- 229920001903 high density polyethylene Polymers 0.000 claims abstract description 9
- 239000004700 high-density polyethylene Substances 0.000 claims abstract description 9
- 239000004831 Hot glue Substances 0.000 claims abstract description 6
- 239000012528 membrane Substances 0.000 claims abstract description 6
- 229920002635 polyurethane Polymers 0.000 claims description 9
- 239000004814 polyurethane Substances 0.000 claims description 9
- 229920000742 Cotton Polymers 0.000 claims description 7
- 239000002250 absorbent Substances 0.000 claims description 4
- 239000004964 aerogel Substances 0.000 claims description 3
- 239000003292 glue Substances 0.000 claims description 3
- 239000002245 particle Substances 0.000 claims description 3
- 239000011347 resin Substances 0.000 claims description 3
- 229920005989 resin Polymers 0.000 claims description 3
- 238000001035 drying Methods 0.000 claims description 2
- 238000000465 moulding Methods 0.000 claims description 2
- 230000000903 blocking effect Effects 0.000 abstract description 11
- 229920000642 polymer Polymers 0.000 abstract description 5
- 238000005253 cladding Methods 0.000 abstract 2
- 230000002035 prolonged effect Effects 0.000 abstract 1
- 230000004048 modification Effects 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 239000004698 Polyethylene Substances 0.000 description 2
- 239000011248 coating agent Substances 0.000 description 2
- 238000000576 coating method Methods 0.000 description 2
- 210000002615 epidermis Anatomy 0.000 description 2
- -1 polyethylene Polymers 0.000 description 2
- 229920000573 polyethylene Polymers 0.000 description 2
- 229920013716 polyethylene resin Polymers 0.000 description 2
- 238000007493 shaping process Methods 0.000 description 2
- 210000003491 skin Anatomy 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 238000004018 waxing Methods 0.000 description 2
- 229910000838 Al alloy Inorganic materials 0.000 description 1
- 208000004880 Polyuria Diseases 0.000 description 1
- 230000002745 absorbent Effects 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000035619 diuresis Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000009422 external insulation Methods 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 230000009970 fire resistant effect Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000005065 mining Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 230000008961 swelling Effects 0.000 description 1
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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 waterproof type crosslinked polyethylene cable of high reliability, including a plurality of cable cores, the cable core outer cladding has the crosslinked polyethylene insulating layer, the crosslinked polyethylene insulating layer outer overlap around there being the hydrophobic membrane of polymer, the hydrophobic membrane of polymer is provided with the water blocking layer outward, the water blocking layer has the yarn that blocks water around the package outward, the yarn outer cladding that blocks water has the high density polyethylene sheath; the water-blocking layer comprises a moisture-proof layer, a water-locking layer and a semi-conductive water-blocking tape which are distributed from inside to outside, and a high-temperature-resistant hot-melt adhesive tape is filled among the moisture-proof layer, the water-locking layer and the semi-conductive water-blocking tape. The high-reliability waterproof crosslinked polyethylene cable has the advantages that the high-molecular hydrophobic film blocks the crosslinked polyethylene cable from contacting with a humid environment, the water blocking layer absorbs and locks water entering the inside, the skin of the crosslinked polyethylene cable cannot contact with humid air or water and the like, water vapor entering the crosslinked polyethylene cable is prevented, and cannot be discharged for a long time, so that the crosslinked polyethylene is embrittled and broken, the quality of the crosslinked polyethylene cable is improved, and the service life of the crosslinked polyethylene cable is prolonged.
Description
Technical Field
The utility model relates to a wire and cable technical field, concretely relates to waterproof type crosslinked polyethylene cable of high reliability.
Background
Cables are typically formed by twisting several or groups of at least two conductors, each group insulated from each other and often twisted around a center, with a highly insulating covering over the entire circumference. The cable has the characteristics of internal electrification and external insulation. The cable includes power cable, control cable, compensation cable, shielding cable, high-temperature cable, computer cable, signal cable, coaxial cable, fire-resistant cable, marine cable, mining cable, aluminum alloy cable and the like.
The polyethylene is crosslinked, a net-shaped three-dimensional structure is formed by covalent bonds among polyethylene molecules, the performance of the polyethylene resin, a series of physical and chemical properties such as thermal deformation, wear resistance, chemical resistance, stress cracking resistance and the like are rapidly improved, and the polyethylene resin is a good material for manufacturing the insulated power cable.
When a common crosslinked polyethylene cable is used for a long time in a humid and watery environment, the outer crosslinked polyethylene skin is brittle, the safety performance of the cable is easily affected, and even a fire disaster is caused in severe cases, so that the potential hazard to the safety of lives and properties of people is formed.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a waterproof type crosslinked polyethylene cable of high reliability to solve crosslinked polyethylene cable and use for a long time under the environment of moist diuresis, the brittle failure phenomenon of outer crosslinked polyethylene epidermis can appear, very easily influences the problem of the security performance of cable.
In order to solve the technical problem, the utility model adopts the following technical scheme:
a high-reliability waterproof cross-linked polyethylene cable comprises a plurality of cable cores, wherein cross-linked polyethylene insulating layers are coated outside the cable cores, high-molecular hydrophobic films are wound outside the cross-linked polyethylene insulating layers in an overlapping mode, water-blocking layers are arranged outside the high-molecular hydrophobic films, water-blocking yarns are wound outside the water-blocking layers, and high-density polyethylene sheaths are coated outside the water-blocking yarns; wherein,
the water-blocking layer comprises a moisture-proof layer, a water-locking layer and a semi-conductive water-blocking tape which are distributed from inside to outside, and a high-temperature-resistant hot-melt adhesive tape is filled among the moisture-proof layer, the water-locking layer and the semi-conductive water-blocking tape.
The further technical scheme is as follows: the water locking layer comprises a polyurethane anticorrosive layer and a water locking belt, and the water locking belt is spirally wound in the containing groove of the polyurethane anticorrosive layer.
The further technical scheme is as follows: the water locking belt is an aerogel strip or macromolecular water-absorbent resin.
The further technical scheme is as follows: the dampproof course is waxing dampproof paper, waxing dampproof paper is at least around the package two-layer, and around the package opposite direction.
The further technical scheme is as follows: the semi-conductive water-blocking tape is formed by impregnating, drying and molding the water-blocking tape with semi-conductive glue.
The further technical scheme is as follows: and water-absorbing cotton is filled between the cable cores, and water-absorbing particles are contained in the water-absorbing cotton.
The further technical scheme is as follows: and a waterproof felt layer is arranged between the high-molecular hydrophobic film and the crosslinked polyethylene insulating layer.
Compared with the prior art, the utility model discloses can reach one of following beneficial effect at least:
1. the utility model provides a waterproof type crosslinked polyethylene cable of high reliability, the crosslinked polyethylene cable sets gradually the hydrophobic membrane of polymer outward, the water blocking layer, yarn and high density polyethylene sheath block water, the hydrophobic membrane separation crosslinked polyethylene cable of polymer contacts with moist environment, the water blocking layer absorbs and pins and gets into inside moisture, the epidermis of guaranteeing the crosslinked polyethylene cable contacts not to moist air or water etc. prevent to get into steam in the crosslinked polyethylene cable, can't get rid of for a long time, lead to crosslinked polyethylene embrittlement to break, improve the quality and the life of crosslinked polyethylene cable.
2. Be provided with semi-conductive water-blocking tape in the water-blocking layer, by the water-blocking tape through semi-conductive glue flooding stoving shaping, the fibre is through fully combing, and longitudinal strength is high, and the resistance is little, and the water-locking layer passes through polyurethane anticorrosive coating and water-locking tape, can guarantee that it can not take place to rot in humid environment, and water-locking tape pins moisture simultaneously, prevents that moisture from flowing into the cable core, damages the cable.
Drawings
Fig. 1 is a schematic structural diagram of the waterproof crosslinked polyethylene cable with high reliability.
Fig. 2 is a schematic structural view of the water-lock layer in fig. 1 according to the present invention.
Reference numerals: 1. a cable core; 2. a crosslinked polyethylene insulating layer; 3. a polymeric hydrophobic membrane; 4. a water resistant layer; 41. a moisture barrier; 42. a water locking layer; 421. a polyurethane corrosion resistant layer; 422. locking the water belt; 43. a semiconductive water-blocking tape; 5. water-blocking yarn; 6. a high density polyethylene jacket; 7. a waterproof felt layer; 8. absorbent cotton; 9. and (6) accommodating the tank.
Detailed Description
To make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the drawings of the embodiments of the present invention are combined to clearly and completely describe the technical solutions of the embodiments of the present invention, and obviously, the described embodiments are some embodiments of the present invention, not all embodiments. The components of embodiments of the present invention, as generally described and illustrated in the figures herein, may be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the present invention, presented in the accompanying drawings, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
In the present invention, the embodiments and the features of the embodiments may be combined with each other without conflict.
It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate the position or positional relationship based on the position or positional relationship shown in the drawings, or the position or positional relationship which the products of the present invention are conventionally placed in use, or the position or positional relationship which the skilled person conventionally understand, and are only for convenience of describing the present invention and simplifying the description, but do not indicate or imply that the device or element to which the reference is made must have a specific position, be constructed in a specific orientation, and be operated, and thus should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and the like are used merely to distinguish one description from another, and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; 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 meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.
Referring to fig. 1 and 2, a highly reliable waterproof cross-linked polyethylene cable is shown, which includes a plurality of cable cores 1, a cross-linked polyethylene insulating layer 2 is coated outside the cable cores 1, a high-molecular hydrophobic film 3 is overlapped and wrapped outside the cross-linked polyethylene insulating layer 2, a water blocking layer 4 is arranged outside the high-molecular hydrophobic film 3, a water blocking yarn 5 is wrapped outside the water blocking layer 4, and a high-density polyethylene sheath 6 is coated outside the water blocking yarn 5; the waterproof layer 4 comprises a moisture-proof layer 41, a water locking layer 42 and a semi-conductive waterproof tape 43 which are distributed from inside to outside, and a high-temperature-resistant hot-melt adhesive tape is filled among the moisture-proof layer 41, the water locking layer 42 and the semi-conductive waterproof tape 43.
The high-reliability waterproof crosslinked polyethylene cable has the following structural principle: the cable core 1 is a conventional cable structure, a plurality of cable cores 1 are wrapped with crosslinked polyethylene insulating layers 2 to form a crosslinked polyethylene cable, a high-molecular hydrophobic film 3 is lapped outside the crosslinked polyethylene cable (namely the crosslinked polyethylene insulating layers 2), a water-blocking layer 4 is arranged outside the high-molecular hydrophobic film 3, a water-blocking yarn 5 is wrapped outside the water-blocking layer 4, a high-density polyethylene sheath 6 is wrapped outside the water-blocking yarn 5, the high-molecular hydrophobic film 3 prevents the crosslinked polyethylene cable from contacting with a humid environment, water can be condensed into water drops in the high-molecular hydrophobic film 3, the water-blocking layer absorbs and locks the water of the part, the high-density polyethylene sheath 6 is commonly called HDPE and has a radial water-blocking function, the skin of the crosslinked polyethylene cable is ensured not to contact with humid air or water and the like, the water vapor in the crosslinked polyethylene cable is prevented from entering and cannot be removed for a long time, so that the crosslinked polyethylene is embrittled and cracked, the quality and the service life of the crosslinked polyethylene cable are improved; in addition, the water blocking layer 4 includes the dampproof course 41 that distributes from inside to outside, lock water layer 42 and semi-conductive water-blocking tape 43, and it has high temperature resistant hot melt adhesive tape to fill between the three, dampproof course 41 prevents that external humid environment from causing the influence to the cable, lock water layer 42 pins moisture, prevent that moisture from flowing into the cable core, damage the cable, semi-conductive water-blocking tape 43 is by the water-blocking tape through semi-conductive gluey flooding stoving shaping, the longitudinal strength is high, the intensity of cable is promoted for a short time in resistance, it has high temperature resistant hot melt adhesive tape to fill between the three, can guarantee the closely knit nature of water blocking layer 4, the quality and the security of improvement cable.
Further, the water-locking layer 42 includes a polyurethane anticorrosive layer 421 and a water-locking strip 422, and the water-locking strip 422 is spirally wound in the accommodating groove 9 of the polyurethane anticorrosive layer 421. The water locking belt 422 is an aerogel strip or a high molecular water-absorbent resin. Water locking layer 42 passes through polyurethane anticorrosive coating 421 and water locking area 42, and holding tank 9 can hold water locking area 422 water swelling's volume that absorbs water, and this water locking layer 42 guarantees that the cable can not take place to rot in moist environment, locks the area simultaneously and pins moisture, prevents that moisture from flowing into the cable core, damages the cable.
Further, the moisture-proof layer 41 is wax-coated moisture-proof paper, the wax-coated moisture-proof paper is wrapped by at least two layers in opposite wrapping directions, and air tightness and water resistance are improved.
Furthermore, absorbent cotton 8 is filled between the cable cores 1, and the absorbent cotton 8 contains absorbent particles, so that the water absorption and locking performance is improved.
Further, a waterproof felt layer 7 is provided between the polymer hydrophobic film 3 and the crosslinked polyethylene insulating layer 2.
Reference throughout this specification to "one embodiment," "another embodiment," "an embodiment," "a preferred embodiment," or the like, means that a particular feature, structure, or characteristic described in connection with the embodiment is included in at least one embodiment described generally in this application. The appearances of the same phrase in various places in the specification are not necessarily all referring to the same embodiment. Further, when a particular feature, structure, or characteristic is described in connection with any embodiment, it is submitted that it is within the scope of the invention to effect such feature, structure, or characteristic in connection with other embodiments.
Although the invention has been described herein with reference to a number of illustrative embodiments thereof, it should be understood that numerous other modifications and embodiments can be devised by those skilled in the art that will fall within the spirit and scope of the principles of this invention. More specifically, various variations and modifications are possible in the component parts and/or arrangements of the subject combination arrangement within the scope of the disclosure, the drawings and the appended claims. In addition to variations and modifications in the component parts and/or arrangements, other uses will also be apparent to those skilled in the art.
Claims (7)
1. The utility model provides a waterproof type crosslinked polyethylene cable of high reliability which characterized in that: the cable comprises a plurality of cable cores (1), wherein a crosslinked polyethylene insulating layer (2) is coated outside each cable core (1), a high-molecular hydrophobic film (3) is lapped outside each crosslinked polyethylene insulating layer (2), a water-blocking layer (4) is arranged outside each high-molecular hydrophobic film (3), a water-blocking yarn (5) is lapped outside each water-blocking layer (4), and a high-density polyethylene sheath (6) is coated outside each water-blocking yarn (5); wherein,
the waterproof layer (4) comprises a damp-proof layer (41), a water locking layer (42) and a semi-conductive waterproof tape (43) which are distributed from inside to outside, and a high-temperature-resistant hot-melt adhesive tape is filled among the damp-proof layer, the water locking layer and the semi-conductive waterproof tape.
2. The highly reliable waterproof crosslinked polyethylene cable according to claim 1, characterized in that: the water locking layer (42) comprises a polyurethane anticorrosive layer (421) and a water locking belt (422), and the water locking belt (422) is spirally wound in the accommodating groove (9) of the polyurethane anticorrosive layer (421).
3. The highly reliable waterproof crosslinked polyethylene cable according to claim 2, characterized in that: the water locking belt (422) is an aerogel strip or macromolecular water-absorbent resin.
4. The highly reliable waterproof crosslinked polyethylene cable according to claim 1, characterized in that: the moisture-proof layer (41) is wax-coated moisture-proof paper, and the wax-coated moisture-proof paper is wrapped at least two layers in opposite wrapping directions.
5. The highly reliable waterproof crosslinked polyethylene cable according to claim 4, wherein: the semi-conductive water-blocking tape (43) is formed by impregnating, drying and molding the water-blocking tape with semi-conductive glue.
6. The highly reliable waterproof crosslinked polyethylene cable according to claim 1, characterized in that: and water-absorbing cotton (8) is filled between the cable cores (1), and water-absorbing particles are contained in the water-absorbing cotton (8).
7. The highly reliable waterproof crosslinked polyethylene cable according to claim 1, characterized in that: and a waterproof felt layer (7) is arranged between the high-molecular hydrophobic membrane (3) and the crosslinked polyethylene insulating layer (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121235146.6U CN214956121U (en) | 2021-06-03 | 2021-06-03 | High-reliability waterproof crosslinked polyethylene cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121235146.6U CN214956121U (en) | 2021-06-03 | 2021-06-03 | High-reliability waterproof crosslinked polyethylene cable |
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| Publication Number | Publication Date |
|---|---|
| CN214956121U true CN214956121U (en) | 2021-11-30 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121235146.6U Active CN214956121U (en) | 2021-06-03 | 2021-06-03 | High-reliability waterproof crosslinked polyethylene cable |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115132419A (en) * | 2022-07-27 | 2022-09-30 | 河北嘉德电力器材有限公司 | Crosslinked polyethylene insulated cable and preparation method thereof |
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2021
- 2021-06-03 CN CN202121235146.6U patent/CN214956121U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115132419A (en) * | 2022-07-27 | 2022-09-30 | 河北嘉德电力器材有限公司 | Crosslinked polyethylene insulated cable and preparation method thereof |
| CN115132419B (en) * | 2022-07-27 | 2023-04-14 | 河北嘉德电力器材有限公司 | Crosslinked polyethylene insulated cable and preparation method thereof |
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