CN217933281U - Intelligent temperature measurement modified polypropylene insulation armored cable - Google Patents

Abstract

The utility model belongs to the field of cables, and discloses an intelligent temperature measurement modified polypropylene insulation armored cable, which comprises three conductors, wherein the outer side of each conductor is provided with a modified insulation layer and a metal shielding layer from inside to outside, and the modified insulation layer is a modified polypropylene insulation layer; the outside parcel of three metallic shield has the band, every the center of conductor all embeds has intelligent temperature measurement optical cable, the armor is steel band or steel wire. The modified polypropylene insulation armoured cable of intelligence temperature measurement of this scheme is by the conductor, modified insulating layer, metallic shield, filling layer, band, interior spacer sleeve, level and smooth aluminium sheath, outer spacer sleeve, armor, the three-core cable that the oversheath is constituteed, and this three-core cable makes the cable possess information-based, intelligent advantage through at conductor center built-in intelligent temperature measurement optical cable, can transmit cable operation data in real time, in time discovers cable fault, ensures that system's operation is steady.

Description

Intelligent temperature measurement modified polypropylene insulation armored cable

Technical Field

The utility model relates to a cable field, more specifically say, relate to the insulating armoured cable of modified polypropylene of intelligence temperature measurement.

Background

The power cable is used for transmitting and distributing electric energy, and is commonly used for urban underground power grids, power station leading-out lines, power supply in industrial and mining enterprises and power transmission lines under river-crossing seawater. At present, most domestic power cables are insulated by crosslinked polyethylene, and the insulating material of the power cables is crosslinked by taking polyethylene as a base material through chemical reaction to form crosslinked polyethylene, so that the power cables have good electrical property and stable heat-resistant and aging-resistant properties.

But crosslinked polyethylene insulation needs to be crosslinked in the production process, enough heat energy is provided for the chemical reaction of the crosslinked polyethylene insulation, the production cost is relatively high, the crosslinked polyethylene is a thermosetting material, and the crosslinked polyethylene is not recyclable and is not beneficial to environmental protection, so the cable industry is always searching for new materials and processes to replace crosslinked polyethylene, in addition, most of the existing cables do not have the function of real-time temperature measurement, the cable fault cannot be found in time, and the cable has the function of temperature measurement, the temperature measurement optical cable is generally placed on two sides of an insulation wire core, the temperature measurement data is inaccurate, and the conditions of breakage and deformation are easy to occur.

SUMMERY OF THE UTILITY MODEL

1. Technical problem to be solved

To the problem that exists among the prior art, the utility model aims to provide an intelligence temperature measurement modified polypropylene insulation armoured cable solves foretell problem.

2. Technical scheme

In order to solve the problem, the utility model adopts the following technical proposal.

The intelligent temperature measurement modified polypropylene insulated armored cable comprises three conductors, wherein a modified insulating layer and a metal shielding layer are arranged on the outer side of each conductor from inside to outside, and the modified insulating layer is a modified polypropylene insulating layer; wrapping belts are wrapped on the outer sides of the three metal shielding layers, an inner isolation sleeve, a smooth aluminum sheath, an outer isolation sleeve, an armor layer and an outer sheath are sequentially arranged on the outer sides of the wrapping belts, an intelligent temperature measuring optical cable is arranged in the center of each conductor, and the armor layer is a steel belt or a steel wire;

the intelligent temperature measurement optical cable comprises temperature measurement optical fibers and a non-magnetic stainless steel tube, wherein the non-magnetic stainless steel tube is used for protecting the temperature measurement optical fibers, and optical fiber filling paste is filled between the temperature measurement optical fibers and the non-magnetic stainless steel tube.

Preferably, a conductor shielding layer is arranged between the conductor and the modified insulating layer, and an insulating shielding layer is arranged between the modified insulating layer and the metal shielding layer

Preferably, the metal shielding layer is a copper strip or a copper wire.

Preferably, the temperature measuring optical fiber is made of a high-temperature resistant material.

Preferably, the outer diameter of the intelligent temperature measuring optical cable is consistent with that of the copper monofilament in the conductor, and the intelligent temperature measuring optical cable is arranged in the center of the conductor.

Preferably, the outer sheath is a light sheath, and crossed printing lines are arranged outside the outer sheath

Preferably, a filling layer is filled between the wrapping tape and the metal shielding layer.

3. Advantageous effects

Compared with the prior art, the utility model has the advantages of:

(1) The intelligent temperature measurement modified polypropylene insulation armored cable of the scheme is a three-core cable consisting of a conductor, a modified insulation layer, a metal shielding layer, a filling layer, a wrapping tape, an inner isolation sleeve, a smooth aluminum sheath, an outer isolation sleeve, an armor layer and an outer sheath, and the three-core cable has the advantages of informatization and intellectualization through the intelligent temperature measurement optical cable arranged in the center of the conductor, can transmit cable operation data in real time, finds cable faults in time and ensures stable operation of a system.

(2) The cable of this scheme can strengthen the compressive strength of cable through the armor that comprises steel band or steel wire, enables the cable long-term operation temperature and can reach 110 ℃ through the modified polypropylene insulating layer, improves the current-carrying capacity, and in addition, modified polypropylene is recoverable recycles, green.

(3) This scheme is filled the cream through nonrust steel pipe of non-magnetism nature and optic fibre and is protected the temperature measurement optic fibre of intelligence temperature measurement optical cable to with this intelligence temperature measurement optical cable setting at the conductor centermost, not only temperature measurement data is accurate, and difficult rupture, deformation.

(4) This scheme carries out multiple protection to the cable inner structure through interior spacer sleeve, level and smooth aluminium sheath, outer spacer sleeve, armor and oversheath, and the protection cable inner is not damaged.

Drawings

FIG. 1 is a schematic view of the present invention;

fig. 2 is the structure schematic diagram of the intelligent temperature measuring optical cable of the utility model.

The numbering in the figures illustrates:

1. a conductor; 2. a conductor shield layer; 3. modifying the insulating layer; 4. an insulating shield layer; 5. a metal shielding layer; 6. a filling layer; 7. wrapping belts; 8. an inner isolation sleeve; 9. an intelligent temperature measuring optical cable; 91. a temperature measuring optical fiber; 92. a non-magnetic stainless steel tube; 93. optical fiber filling paste; 10. a smooth aluminum jacket; 11. an outer spacer sleeve; 12. an armor layer; 13. an outer sheath.

Detailed Description

The technical solution in the embodiment of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiment of the present invention; obviously, the described embodiments are only a part of the embodiments of the present invention, and not all embodiments, and all other embodiments obtained by those skilled in the art without any inventive work are within the scope of the present invention based on the embodiments of the present invention.

In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "top/bottom", and the like indicate orientations or positional relationships based on orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted", "provided", "sleeved/connected", "connected", and the like are to be understood in a broad sense, such as "connected", which may be fixedly connected, detachably connected, or integrally connected; 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, the intelligent temperature measurement modified polypropylene insulated armored cable comprises three conductors 1, wherein a modified insulating layer 3 and a metal shielding layer 5 are arranged on the outer side of each conductor 1 from inside to outside, the modified insulating layer 3 is a modified polypropylene insulating layer, the modified polypropylene insulating layer is modified by polypropylene PP, the embrittlement temperature is reduced, the toughness and the ageing resistance are improved, the insulating property and the heat resistance are ensured, the long-term operation temperature of the cable conductor is increased on the premise of ensuring the insulating quality, and the current-carrying capacity is improved;

the wrapping tapes 7 wrap the outer sides of the three metal shielding layers 5, the metal shielding layers 5 mainly play a role in shielding an electric field, and the wrapping tapes 7 can further stabilize the metal shielding layers 5 and protect the metal shielding layers 5 to a certain extent; the outside of band 7 has set gradually interior spacer sleeve 8, level and smooth aluminium sheath 10, outer spacer sleeve 11, armor 12 and oversheath 13, and the center of every conductor 1 all embeds has intelligent temperature measurement optical cable 9, and armor 12 is the steel band or steel wire, reinforced cable's compressive strength.

The conductor shielding layer 2 is arranged between the conductor 1 and the modified insulating layer 3, and the arrangement of the conductor shielding layer 2 homogenizes the electric field on the outer surface of the conductor 1, so that the problem that partial discharge occurs on the conductor 1 and the insulating part due to the unsmooth outer surface of the conductor 1 and the defect of the conductor 1 is avoided; be provided with insulating shield layer 4 between modified insulating layer 3 and the metallic shield layer 5, insulating shield layer 4 closely coats at 3 surfaces of modified insulating layer, prepare by common shielding material, insulating shield layer 4 mainly sets up for cooperation conductor shield layer 2, set up the combination of insulating shield layer 4 and conductor shield layer 2, can ensure to avoid producing the problem emergence that partial discharge leads to the optical cable impaired between modified insulating layer 3 and the metallic shield layer 5, and can also effectively avoid insulating shield layer 4 to lead to all the other metallic shield layers 5 to produce partial discharge because defects such as surface crack.

Referring to fig. 2, the intelligent temperature measurement optical cable 9 includes a temperature measurement optical fiber 91 and a non-magnetic stainless steel tube 92, the non-magnetic stainless steel tube 92 is used for protecting the temperature measurement optical fiber 91, an optical fiber filling paste 93 is filled between the temperature measurement optical fiber 91 and the non-magnetic stainless steel tube 92, and the temperature measurement optical fiber 91 is protected by the non-magnetic stainless steel tube 92, so that safety of the intelligent temperature measurement optical cable 9 is ensured.

Wherein, the metal shielding layer 5 is a copper strip or a copper wire. The temperature measuring optical fiber 91 is made of high temperature resistant material to adapt to the temperature of the conductor 1 in the production and operation process.

The outer diameter of the intelligent temperature measuring optical cable 9 is consistent with that of a copper monofilament in the conductor 1, the intelligent temperature measuring optical cable 9 is arranged at the center of the conductor 1, the intelligent temperature measuring optical cable 9 is guaranteed not to be damaged in the layering, pressing and stranding process of the conductor 1, and temperature measuring data are accurate.

Further, the outer sheath 13 is a light sheath, preferably made of HDPE, and has good scraping resistance, light overall weight and strong crack resistance; crossed printing patterns are arranged outside the outer sheath 13, and can disperse axial stress, so that the stress uniformity of the whole cable outer sheath 13 is improved, and the ductility of the outer sheath 13 can be further improved to a small extent; and a filling layer 6 is filled between the wrapping tape 7 and the metal shielding layer 5.

To sum up: this scheme intelligence temperature measurement modified polypropylene insulation armoured cable is by conductor 1, conductor shielding layer 2, modified insulating layer 3, insulation shielding layer 4, metal shielding layer 5, filling layer 6, band 7, interior spacer sleeve 8, level and smooth aluminium sheath 10, outer spacer sleeve 11, armoured layer 12, three-core cable is constituteed to oversheath 13, through at conductor 1 center built-in intelligent temperature measurement optical cable 9, make the cable possess the information-based, intelligent advantage, can transmit cable operation data in real time, in time discover cable fault, ensure that the system operates steadily, can strengthen the compressive strength of cable through armoured layer 12 by steel band or steel wire, through modified insulating layer 3 by modified polypropylene, can make cable long-term operation temperature can reach 110 ℃, improve the current-carrying capacity, in addition, modified polypropylene is recoverable recycles, green.

The above description is only the preferred embodiment of the present invention; the scope of the present invention is not limited thereto. Any person skilled in the art should also be able to cover the technical scope of the present invention by replacing or changing the technical solution and the improvement concept of the present invention with equivalents and modifications within the technical scope of the present invention.

Claims (7)

1. Modified polypropylene insulation armoured cable of intelligence temperature measurement, including conductor (1), its characterized in that: the number of the conductors (1) is three, a modified insulating layer (3) and a metal shielding layer (5) are arranged on the outer side of each conductor (1) from inside to outside, and the modified insulating layer (3) is a modified polypropylene insulating layer; wrapping belts (7) are wrapped on the outer sides of the three metal shielding layers (5), an inner isolation sleeve (8), a smooth aluminum sheath (10), an outer isolation sleeve (11), an armor layer (12) and an outer sheath (13) are sequentially arranged on the outer sides of the wrapping belts (7), an intelligent temperature measuring optical cable (9) is arranged in the center of each conductor (1), and the armor layer (12) is a steel belt or a steel wire;

the intelligent temperature measurement optical cable (9) comprises temperature measurement optical fibers (91) and a non-magnetic stainless steel tube (92), the non-magnetic stainless steel tube (92) is used for protecting the temperature measurement optical fibers (91), and optical fiber filling paste (93) is filled between the temperature measurement optical fibers (91) and the non-magnetic stainless steel tube (92).

2. The intelligent temperature measurement modified polypropylene insulated armored cable of claim 1, wherein: a conductor shielding layer (2) is arranged between the conductor (1) and the modified insulating layer (3), and an insulating shielding layer (4) is arranged between the modified insulating layer (3) and the metal shielding layer (5).

3. The intelligent temperature-measuring modified polypropylene insulated armored cable of claim 1, wherein: the metal shielding layer (5) is a copper strip or a copper wire.

4. The intelligent temperature measurement modified polypropylene insulated armored cable of claim 1, wherein: the temperature measuring optical fiber (91) is made of high-temperature resistant material.

5. The intelligent temperature-measuring modified polypropylene insulated armored cable of claim 1, wherein: the outer diameter of the intelligent temperature measuring optical cable (9) is consistent with that of the copper monofilaments in the conductor (1), and the intelligent temperature measuring optical cable (9) is arranged in the center of the conductor (1).

6. The intelligent temperature measurement modified polypropylene insulated armored cable of claim 1, wherein: the outer sheath (13) is a light sheath, and crossed printing lines are arranged outside the outer sheath (13).

7. The intelligent temperature-measuring modified polypropylene insulated armored cable of claim 1, wherein: and a filling layer (6) is filled between the wrapping tape (7) and the metal shielding layer (5).

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