CN112420268A - Moisture-proof cable - Google Patents
Moisture-proof cable Download PDFInfo
- Publication number
- CN112420268A CN112420268A CN202011252091.XA CN202011252091A CN112420268A CN 112420268 A CN112420268 A CN 112420268A CN 202011252091 A CN202011252091 A CN 202011252091A CN 112420268 A CN112420268 A CN 112420268A
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- CN
- China
- Prior art keywords
- protective layer
- cable
- layer
- waterproof
- shielding layer
- 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.)
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Classifications
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B7/00—Insulated conductors or cables characterised by their form
- H01B7/17—Protection against damage caused by external factors, e.g. sheaths or armouring
- H01B7/28—Protection against damage caused by moisture, corrosion, chemical attack or weather
- H01B7/282—Preventing penetration of fluid, e.g. water or humidity, into conductor or cable
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/26—Drying gases or vapours
- B01D53/28—Selection of materials for use as drying agents
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B7/00—Insulated conductors or cables characterised by their form
- H01B7/17—Protection against damage caused by external factors, e.g. sheaths or armouring
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B7/00—Insulated conductors or cables characterised by their form
- H01B7/17—Protection against damage caused by external factors, e.g. sheaths or armouring
- H01B7/28—Protection against damage caused by moisture, corrosion, chemical attack or weather
- H01B7/2806—Protection against damage caused by corrosion
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B7/00—Insulated conductors or cables characterised by their form
- H01B7/17—Protection against damage caused by external factors, e.g. sheaths or armouring
- H01B7/28—Protection against damage caused by moisture, corrosion, chemical attack or weather
- H01B7/282—Preventing penetration of fluid, e.g. water or humidity, into conductor or cable
- H01B7/285—Preventing penetration of fluid, e.g. water or humidity, into conductor or cable by completely or partially filling interstices in the cable
- H01B7/288—Preventing penetration of fluid, e.g. water or humidity, into conductor or cable by completely or partially filling interstices in the cable using hygroscopic material or material swelling in the presence of liquid
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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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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Analytical Chemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Insulated Conductors (AREA)
Abstract
The invention discloses a moisture-proof cable which comprises a conductor, wherein an insulating layer wraps the conductor, a shielding layer wraps the insulating layer, a plurality of annular grooves are formed in the shielding layer, portland cement is filled in the annular grooves, a permeable crystallization waterproof coating is coated outside the shielding layer, a PE waterproof breathable film is attached to the permeable crystallization waterproof coating, an inner protective layer wraps the PE waterproof breathable film, a plurality of filling holes are formed in the surface of the inner protective layer, drying agents are filled in the filling holes, and an outer protective layer wraps the inner protective layer. Waterproof and air permeability between reinforcing inner protective layer and the shielding layer prevents that the cable from rotting because of long-term weing, has strengthened the humidity resistance of cable, and the effectual shielding layer of having avoided takes place the oxidation to guaranteed shielding layer life, and then improved the interference killing feature of cable, improved the life of cable.
Description
Technical Field
The invention relates to the technical field of cables, in particular to a moisture-proof cable.
Background
The application of the cable is very wide, the common main application is in power systems, information transmission systems and the like, different areas have different performance requirements on the power cable, for example, in areas such as ports, docks, reservoirs, tunnels and the like, the cable is often erected in the air or is installed underground or underwater and is used for telecommunication or power transmission, and because the humidity is high, when the cable is used for power or communication transmission, the cable is not provided with a moisture-proof layer, the oxidation of a shielding layer is easily caused, the shielding effect is reduced, and the power transmission is interrupted; meanwhile, the cable can be corroded due to long-term damp, so that the effective anti-interference performance and shielding cannot be realized, and the service life of the cable is shortened.
Disclosure of Invention
The invention aims to provide a moisture-proof cable, which solves the problems of poor moisture resistance and easy rotting of the cable proposed in the background art.
In order to solve the technical problems, the invention provides the following technical scheme:
the utility model provides a moisture-proof type cable, includes the conductor, the outer parcel of conductor has the insulating layer, the outer parcel of insulating layer has the shielding layer, it has a plurality of ring channel to open on the shielding layer, the ring channel intussuseption is filled by portland cement, the shielding layer coats outward and scribbles infiltration crystallization waterproof coating, the outer laminating of infiltration crystallization waterproof coating has the waterproof ventilated membrane of PE, the outer parcel of the waterproof ventilated membrane of PE has the inner protective layer, the inner protective layer open on the surface has a plurality of filling hole, the filling hole intussuseption is filled with the drier, the outer parcel of inner protective layer has the outer protective layer.
Further, the portland cement and the permeable crystallization waterproof coating are subjected to polycondensation crystallization to generate a waterproof crystalline layer.
Further, the groove depth of the annular groove is 1 mm.
Further, the drying agent is a calcium oxide drying agent.
Compared with the prior art, the invention has the following beneficial effects:
according to the invention, the calcium oxide desiccant between the outer protective layer and the inner protective layer forms a first waterproof treatment, and the PE waterproof breathable film between the inner protective layer and the shielding layer and the waterproof crystalline layer generated by the silicate cement and the permeable crystallization waterproof coating form a second waterproof treatment, so that the waterproof and breathable performances between the inner protective layer and the shielding layer are enhanced, the cable is prevented from being rotted due to long-term moisture, the moisture resistance of the cable is enhanced, the shielding layer is effectively prevented from being oxidized, the service life of the shielding layer is ensured, the anti-interference performance of the cable is further improved, and the service life of the cable is prolonged.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention and not to limit the invention. In the drawings:
FIG. 1 is a structural cross-sectional view of the present invention;
fig. 2 is a schematic structural diagram of the present invention.
In the figure: 1. a conductor; 2. an insulating layer; 3. a shielding layer; 4. an annular groove; 5. portland cement; 6. a water-proof coating of infiltration crystallization; 7. a PE waterproof breathable film; 8. an inner protective layer; 9. filling the hole; 10. a desiccant; 12. and an outer protective layer.
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 derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1, the present invention provides a technical solution:
the utility model provides a moisture-proof type cable, includes conductor 1, and 1 outsourcing of conductor has insulating layer 2, and 2 outsourcing of insulating layer have shielding layer 3, its characterized in that: the shielding layer 3 is provided with a plurality of annular grooves 4, the annular grooves 4 are filled with portland cement 5, the shielding layer 3 is externally coated with a permeable crystallization waterproof coating 6, the permeable crystallization waterproof coating 6 is externally attached with a PE waterproof breathable film 7, the PE waterproof breathable film 7 is externally wrapped with an inner protective layer 8, the surface of the inner protective layer 8 is provided with a plurality of filling holes 9, the filling holes 9 are filled with a drying agent 10, and the inner protective layer 8 is externally wrapped with an outer protective layer 11;
the silicate cement 5 and the permeable crystallization waterproof coating 6 are subjected to polycondensation crystallization to generate a waterproof crystal layer, the silicate cement 5 is used as a catalyst, so that the permeable crystallization waterproof coating 6 is subjected to condensation crystallization in a wet environment on the surface of the silicate cement 5 to form a waterproof crystal (-O-R-)2n,
the reaction formula is as follows: nCa (O-R-OH)2+ nCa (O-R-OH) 2- (2 (-O-R-)2n +2nCa (OH) 2;
the groove depth of the annular groove 4 is 1mm, and the groove depth is shallow, so that the anti-interference effect of the shielding layer 3 is not influenced, and meanwhile, the Portland cement 5 and the penetration crystallization waterproof coating 6 can react to generate a waterproof crystal layer, so that the waterproof performance of the shielding layer 3 is enhanced;
the desiccant 10 is a calcium oxide desiccant;
the working principle of the invention is as follows:
firstly, the moisture permeating into the cable from the outside is absorbed by the calcium oxide desiccant between the outer protective layer 11 and the inner protective layer 8, then the waterproof crystalline layer generated by the PE waterproof breathable film 7, the portland cement 5 and the capillary crystalline waterproof coating 6 prevents the moisture further permeating into the inner protective layer 8 from soaking into the shielding layer 3, the waterproof performance between the inner protective layer and the shielding layer is enhanced, the cable is prevented from being affected with damp, meanwhile, the moisture soaked into the inner protective layer 8 is further permeated out from the inner protective layer 8 through the air permeability of the PE waterproof breathable film 7 and then is absorbed by the calcium oxide desiccant between the outer protective layer 11 and the inner protective layer 8, thereby preventing the cable from being rotten due to long-term damp, enhancing the moisture resistance and the corrosion resistance of the cable, effectively avoiding the oxidation of the shielding layer, further ensuring the service life of the shielding layer and further improving the anti-interference performance of the cable, the service life of the cable is prolonged.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that changes may be made in the embodiments and/or equivalents thereof without departing from the spirit and scope of the invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (4)
1. A moisture-proof cable comprises a conductor (1), an insulating layer (2) is wrapped outside the conductor (1), and a shielding layer (3) is wrapped outside the insulating layer (2), and is characterized in that: the utility model discloses a waterproof protective film, including shielding layer (3), annular groove (4), infiltration crystallization waterproof coating (6), PE waterproof ventilated membrane (7) are laminated to the outer packing of annular groove (4), shielding layer (3) overcoat has infiltration crystallization waterproof coating (6), infiltration crystallization waterproof coating (6) outer, PE waterproof ventilated membrane (7) outer parcel has inner protective layer (8), open on the surface of inner protective layer (8) has a plurality of filling hole (9), filling hole (9) intussuseption is filled with drier (10), inner protective layer (8) outer parcel has outer protective layer (11).
2. A moisture-proof cable as claimed in claim 1, wherein: and the silicate cement (5) and the permeable crystallization waterproof coating (6) are subjected to polycondensation crystallization to generate a waterproof crystal layer.
3. A moisture-proof cable as claimed in claim 1, wherein: the groove depth of the annular groove (4) is 1 mm.
4. A moisture-proof cable as claimed in claim 1, wherein: the drying agent (10) is a calcium oxide drying agent.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011252091.XA CN112420268B (en) | 2020-11-11 | 2020-11-11 | Moisture-proof cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011252091.XA CN112420268B (en) | 2020-11-11 | 2020-11-11 | Moisture-proof cable |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN112420268A true CN112420268A (en) | 2021-02-26 |
| CN112420268B CN112420268B (en) | 2022-05-20 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011252091.XA Active CN112420268B (en) | 2020-11-11 | 2020-11-11 | Moisture-proof cable |
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| Country | Link |
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| CN (1) | CN112420268B (en) |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203895162U (en) * | 2014-06-18 | 2014-10-22 | 杭州蓝田涂料有限公司 | High-temperature-resistant permeable coating structure |
| CN107165266A (en) * | 2017-07-10 | 2017-09-15 | 中国十七冶集团有限公司 | A kind of basement side wall structure |
| CN207489568U (en) * | 2017-12-12 | 2018-06-12 | 安徽理工大学 | A kind of Intelligent Composite cable used for intelligent electric network |
| CN108678295A (en) * | 2018-06-08 | 2018-10-19 | 厦门理工学院 | A kind of dual waterproof combined type roofing |
| CN209471777U (en) * | 2018-12-14 | 2019-10-08 | 联合金属生产（深圳）有限公司 | A kind of pressure resistant type mine self-unloading vehicular cable |
| CN110550901A (en) * | 2018-05-31 | 2019-12-10 | 中环海化(厦门)船舶智能涂料有限公司 | Cement-based capillary crystalline waterproof coating |
| CN210606700U (en) * | 2019-11-22 | 2020-05-22 | 鲁诺特种电缆(山东)有限公司 | High-flexibility torsion-resistant cable |
| CN210692165U (en) * | 2019-11-21 | 2020-06-05 | 山东富强特种线缆有限公司 | Waterproof cable |
-
2020
- 2020-11-11 CN CN202011252091.XA patent/CN112420268B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203895162U (en) * | 2014-06-18 | 2014-10-22 | 杭州蓝田涂料有限公司 | High-temperature-resistant permeable coating structure |
| CN107165266A (en) * | 2017-07-10 | 2017-09-15 | 中国十七冶集团有限公司 | A kind of basement side wall structure |
| CN207489568U (en) * | 2017-12-12 | 2018-06-12 | 安徽理工大学 | A kind of Intelligent Composite cable used for intelligent electric network |
| CN110550901A (en) * | 2018-05-31 | 2019-12-10 | 中环海化(厦门)船舶智能涂料有限公司 | Cement-based capillary crystalline waterproof coating |
| CN108678295A (en) * | 2018-06-08 | 2018-10-19 | 厦门理工学院 | A kind of dual waterproof combined type roofing |
| CN209471777U (en) * | 2018-12-14 | 2019-10-08 | 联合金属生产（深圳）有限公司 | A kind of pressure resistant type mine self-unloading vehicular cable |
| CN210692165U (en) * | 2019-11-21 | 2020-06-05 | 山东富强特种线缆有限公司 | Waterproof cable |
| CN210606700U (en) * | 2019-11-22 | 2020-05-22 | 鲁诺特种电缆(山东)有限公司 | High-flexibility torsion-resistant cable |
Also Published As
| Publication number | Publication date |
|---|---|
| CN112420268B (en) | 2022-05-20 |
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