CN115020019B

CN115020019B - Intelligent high-temperature-resistant electric integrated cable

Info

Publication number: CN115020019B
Application number: CN202210805796.2A
Authority: CN
Inventors: 唐国霞; 盛金伟; 徐静; 朱涛; 刘丽; 魏明倩; 张宇鸥; 刘星
Original assignee: Far East Cable Co Ltd; New Far East Cable Co Ltd; Far East Composite Technology Co Ltd
Current assignee: Far East Cable Co Ltd; New Far East Cable Co Ltd; Far East Composite Technology Co Ltd
Priority date: 2022-07-08
Filing date: 2022-07-08
Publication date: 2025-08-01
Anticipated expiration: 2042-07-08
Also published as: CN115020019A

Abstract

The present invention discloses an intelligent high-temperature resistant hydropower integrated cable, comprising a cable core, the cable core comprising a main water pipe, a power core and a control signal core group, the main water pipe, the power core and the control signal core group being twisted into a cable, and a filling core being provided in the center of the cable core, a monitoring core being sandwiched in the edge gap, the cable core being wrapped with a flame-retardant cloth tape, a high-strength glass fiber layer being woven outside the flame-retardant cloth tape, a sheath being extruded outside the high-strength glass fiber layer, an alkali-free glass fiber tape being wrapped outside the sheath, and a tinned copper wire layer being woven outside the alkali-free glass fiber tape. The above-mentioned intelligent high-temperature resistant hydropower integrated cable is designed for occasions requiring both high temperature resistance and hydropower, and has a reasonable design of the power core, control core, signal core, main water pipe, etc., thereby avoiding the problem of entanglement during cable wiring, and can effectively extend the service life of the cable and water pipe, while increasing the current-carrying capacity of the cable, ensuring the safe operation of the cable and the safe use of the equipment.

Description

Intelligent high-temperature-resistant electric integrated cable

Technical Field

The invention relates to the technical field of cables, in particular to an intelligent high-temperature-resistant electric comprehensive cable which is used for a low-voltage power utilization system with a main wire core and used in occasions where high temperature resistance is achieved and water transmission is needed.

Background

In recent years, with the improvement of comprehensive national force and the rapid development of socioeconomic performance, the use conditions of various devices and cables have also been developed at overspeed. For many industries such as manufacturing, service and the like, occasions requiring water and electricity simultaneously are increased, so for the occasions, when a cable and a water pipe are respectively connected, the water pipe is unprotected, the problems of intertwining, easy damage, inconvenient storage and the like during laying or using can occur, the current carrying capacity of the cable is limited, the operation is easy to cause faults, and potential safety hazards exist in equipment use.

Disclosure of Invention

Based on the problems, the invention aims to provide an intelligent high-temperature-resistant electric integrated cable which is suitable for occasions requiring high-temperature-resistant water and electricity at the same time, so that the winding problem in the cable wiring process is avoided, the service lives of a cable and a water pipe are prolonged, and the safe use of equipment is ensured.

In order to achieve the above purpose, the invention adopts the following technical scheme:

The utility model provides an intelligent high temperature resistant water electric integrated cable, it includes the cabling core, the cabling core includes main raceway, power core and control signal core group, main raceway, power core and control signal core group hank become the cable, and the center of cabling core is provided with the filling core, it is equipped with the monitoring core to press from both sides in the edge gap, the cable core is outward around the fire-retardant strap of package, fire-retardant strap is outward woven and is had high strength glass fiber silk layer, the crowded package of high strength glass fiber silk layer has the sheath outward, the sheath is outward around the package has alkali glass fiber area, alkali glass fiber out-of-band is woven and is had tin-plated copper wire layer.

Particularly, the main water pipe adopts a hose with three equally-spaced high-temperature resistant materials, the outside of the hose adopts thin steel wires and aramid fibers for mixed knitting, and the knitting density is not less than 80%.

The conductor of the power wire core comprises an aramid fiber braided tube which is pulled by taking a water hose as a center and a plurality of copper guide cores which are stranded around the aramid fiber braided tube, wherein the copper guide cores are stranded into a single strand by a plurality of copper wire bundles, the conductor is wrapped with a fluorophlogopite belt, the lap rate is not less than 30%, and the fluorophlogopite belt is extruded with the power wire core for insulation.

In particular, the power wire core is insulated by a high-strength high-tearing-resistance silicon rubber material, the tensile strength reaches 8MPa, the tearing resistance strength reaches 30kN/m, and the conductor temperature resistance grade reaches 180 ℃.

The control signal wire core group is formed by cabling a plurality of control wire cores and signal wire cores around a central reinforcing pipe, the central reinforcing pipe is pulled by a water hose, the outer surface of the central reinforcing pipe is woven by aramid fiber wires, and a flame-retardant cloth belt is wrapped after cabling.

Particularly, the conductors of the control wire cores are formed by adopting the central reinforcement of a steel wire rope and the regular stranding of a plurality of copper wires, the surface of the stranded conductors is woven with a protective layer by adopting the copper wires, the weaving density is not less than 60 percent, the protective layer is wrapped with a flame-retardant belt, and the flame-retardant belt is extruded outside the flame-retardant belt to insulate the control wire cores.

Particularly, the conductors of the signal wire core are stranded by adopting a plurality of copper wires, a plurality of aramid wires are added in the center during stranding, ethylene propylene rubber at 125 ℃ is extruded for insulation after stranding, two conductors are twisted into a cable and then are wrapped with an aluminum-plastic composite belt, a tin-plated copper wire shielding layer is woven outside the aluminum-plastic composite belt, and a polyester belt is wrapped outside the tin-plated copper wire shielding layer.

The filling core comprises a central steel wire rope, ethylene propylene diene monomer rubber is extruded outside the central steel wire rope, an aramid fiber reinforcing layer is woven outside the aramid fiber reinforcing layer, and a pentagonal special-shaped outer protector is extruded outside the aramid fiber reinforcing layer corresponding to one main water pipe, three power wire cores and one control signal wire core group.

Specifically, the conductor of the monitoring wire core is formed by adopting aramid fiber wire center reinforcement and mixing and twisting a plurality of copper foil wires and copper wires, electric isolation paper is wrapped around the conductor after twisting, an insulating layer of 125 ℃ ethylene propylene rubber mixture is extruded outside the electric isolation paper, a copper wire shielding layer is woven outside the insulating layer, a flame-retardant cloth belt is wrapped outside the copper wire shielding layer, and a CPE rubber mixture protection layer is extruded outside the copper wire shielding layer.

In particular, the sheath is extruded from a high temperature resistant TPV blended elastomeric material.

In summary, the intelligent high-temperature-resistant electric comprehensive cable has the beneficial effects that the power wire core, the control wire core, the signal wire core, the main water pipe and the like are reasonably designed according to the occasions requiring high temperature resistance and water and electricity at the same time, so that the winding problem in the cable wiring process is avoided, the service lives of the cable and the water pipe can be effectively prolonged, the current carrying capacity of the cable is increased, the safe operation of the cable is ensured, and the equipment is safely used.

Drawings

Fig. 1 is a schematic structural diagram of an intelligent high-temperature-resistant electric integrated cable according to an embodiment of the present invention;

Fig. 2 is a schematic structural diagram of a filling core in the intelligent high-temperature-resistant electric integrated cable according to the embodiment of the invention;

Fig. 3 is a schematic structural diagram of a power core in the intelligent high-temperature-resistant electric integrated cable provided by the embodiment of the invention;

fig. 4 is a schematic structural diagram of a control signal wire core group in the intelligent high-temperature-resistant electric integrated cable according to the embodiment of the invention;

fig. 5 is a schematic structural diagram of a monitoring core in an intelligent high-temperature-resistant electric integrated cable according to an embodiment of the present invention.

Detailed Description

Embodiments of the present invention are described in detail below, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar parts throughout, or parts having like or similar functions. The embodiments described below by referring to the drawings are illustrative and intended to explain the present invention and should not be construed as limiting the invention.

In the description of the present invention, unless explicitly stated and limited otherwise, the terms "connected," "connected," and "fixed" are to be interpreted broadly, as for example, they may be fixedly connected, or may be detachably connected, or may be electrically connected, or may be directly connected, or may be indirectly connected through an intermediary, or may be in communication with one another in two elements or in an interaction relationship between two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art according to the specific circumstances.

In the description of the present invention, unless explicitly stated and limited otherwise, a first feature "above" or "below" a second feature may include the first feature and the second feature being in direct contact, or may include the first feature and the second feature not being in direct contact but being in contact by another feature therebetween. Moreover, a first feature being "above," "over" and "on" a second feature includes the first feature being directly above and obliquely above the second feature, or simply indicating that the first feature is higher in level than the second feature. The first feature being "under", "below" and "beneath" the second feature includes the first feature being directly under and obliquely below the second feature, or simply means that the first feature is less level than the second feature.

The technical scheme of the invention is further described below by the specific embodiments with reference to the accompanying drawings.

Referring to fig. 1, the present preferred embodiment provides an intelligent high temperature resistant electric composite cable, which includes a cable core including a main water pipe 1, a power core 2 and a control signal core group, wherein a filling core 3 is disposed at the center of the cable core, and a monitoring core 7 is sandwiched in an edge gap. In this embodiment, the cable specification of 3×70+4×6+2×2×0.75+1×Φ20 is taken as an example, and further explaining that the cable-forming wire core is formed by twisting a main water pipe 1, three power wire cores 2 and a control signal wire core, five monitoring wire cores 7 are distributed in the edge gaps of the cable-forming wire core, and the cable-forming pitch ratio of the assembly cable is controlled to be 10-12 times.

Specifically, as shown in fig. 2, the filling core 3 includes a central steel wire rope 31, a 3.0mm steel wire rope is used as traction, an ethylene propylene diene monomer rubber insulation 32 is extruded, an aramid fiber wire reinforcing layer 33 is woven, a main water pipe 1, three power wire cores 2 and a control signal wire core group are extruded outside the aramid fiber wire reinforcing layer 33, a pentagonal special-shaped outer protection 34 is completely filled in the gap area of the centers of the wire cores arranged at intervals, the size of the filling core 3 needs to ensure that each wire core is completely positioned at a preset position of the filling core 3 during cabling, the rounding and compactness of cabling are ensured, and the arrangement of cable wire cores is stable.

The main water pipe 1 adopts a hose with three equally-spaced high-temperature resistant materials, the diameter is 20mm, the outside of the hose adopts thin steel wires and aramid fiber wires for mixed knitting, and the knitting density is not less than 80%. The mixed knitting structure can strengthen the tensile property and the protection effect of the main water pipe 1 on the premise of ensuring softness.

As shown in fig. 3, the conductor of the power core 2 comprises an aramid yarn braided tube 21 which is pulled by taking a water hose as a center and a plurality of copper guide cores 22 which are stranded around the aramid yarn braided tube 21, wherein the copper guide cores 22 are stranded into a single strand by a plurality of copper wire bundles, and the outer diameter of the conductor is about 16.0mm. The specific process is that 33 monofilaments with the diameter of 0.254mm are bunched and twisted, a bunching and twisting distribution board is adopted in the bunching and twisting process, then 6 bunched and twisted cores are reinforced around a central steel wire rope, the bunching and twisting are carried out according to the normal arrangement of 1+6, a water hose with the diameter of 6.0 is used as traction, aramid fiber yarns are adopted on a 16-spindle braiding machine for braiding (the aramid fiber yarns need to be dried and dried before being used), and then 7 bunched and twisted copper guide cores 22 reinforced by the steel wire rope are evenly twisted around an aramid fiber yarn braiding pipe 21.

Further, the double-sided fluorophlogopite belt 23 with the thickness of 0.17 is wrapped outside the conductor, so that the conductor is tightly tied, meanwhile, the cable has fire resistance, the lapping rate of the wrapping belt is not less than 30%, the fluorophlogopite belt 23 is wrapped with the power wire core insulation 24 in an extruding mode, the power wire core insulation 24 is made of high-strength high-tearing-resistance silicon rubber material, the insulation thickness is 1.6mm, the tensile strength reaches 8MPa, the tearing strength reaches 30kN/m, the temperature resistance level of the conductor reaches 180 ℃, the current-carrying capacity and the softness of the power wire core 2 are guaranteed, and the conductor is safe when the short-time temperature of the conductor is high in the use process.

As shown in fig. 4, the control signal wire core group is formed by cabling four control wire cores 4 and two signal wire cores 5 around a central reinforcing pipe 6, the central reinforcing pipe 6 is formed by taking a water hose as traction and weaving aramid fiber yarn on the outer surface, and a flame-retardant cloth belt is wrapped after cabling. The specific process is that a water hose with phi of 6.0 is used as traction, aramid fiber is adopted on a 16-spindle braiding machine for braiding (the aramid fiber is required to be dried and dried before being used), four control wire cores 4 and two signal wire cores 5 are arranged in a sequence of 1+6 by taking a central reinforcing pipe 6 as the center, a unit cabling wire core is formed by cabling and twisting the unit cabling wire core in a right direction, the unit cabling pitch diameter ratio is controlled to be 8-10 times, a layer of thin flame-retardant cloth belt is wound after the unit cabling, then a layer of tinned copper wire is braided by adopting a 24-spindle braiding machine, the braiding density is not less than 80%, and a layer of thin flame-retardant cloth belt is wound after braiding.

The conductors of the control wire core 4 are formed by regularly twisting 114 copper wires with 0.254mm and reinforced in the center of a steel wire rope, the copper wires are twisted in the same direction according to the regular arrangement of 1+6, the surface after twisting is braided with a protective layer 41 with the braiding density not less than 60%, a layer of flame-retardant belt 42 is wrapped outside the protective layer 41, the control wire core insulation 43 is extruded outside the flame-retardant belt 42, the control wire core insulation 43 is made of silicon rubber with good performance and high dielectric strength, the nominal insulation thickness is 1.2mm, and the softness and high temperature resistance of the cable are ensured.

The conductors of the signal wire core 5 are stranded by adopting a plurality of copper wires, a plurality of aramid wires are added in the center during stranding, specifically 24 monofilaments with the diameter of 0.195mm are stranded by taking 1 aramid wire with the diameter of 1500D as the center according to left-hand arrangement, the copper wires are woven by adopting oven-dried copper wires after stranding, the weaving density is not less than 90%, and a layer of non-woven fabric is wrapped after weaving. Thereafter, an ethylene propylene rubber insulation 51 of 125 ℃ is extruded, and the nominal thickness of the insulation is 0.8mm.

In the process of 5 twisted pairs of signal wire cores, the twisting pitch is controlled within 100mm, the pitch ratio is ensured to be no more than 14 times, and in order to ensure the tensile property of the signal wire cores, enough aramid fiber yarn materials are filled in side gaps during twisted pairs, and the twisted pairs are round. After twisted, a layer of aluminum-plastic composite belt 52 is wrapped, then 0.15mm tinned copper wires are adopted for braiding, the braiding density is guaranteed to be not less than 90%, a tinned copper wire shielding layer 53 is formed, and two layers of polyester belts 54 are wrapped outside the tinned copper wire shielding layer 53.

The shielding mode of the aluminum-plastic composite belt 52 and the copper wire braided shielding is adopted, the best shielding effect can be provided in the whole frequency spectrum, and the aluminum-plastic composite belt has the advantages of excellent mechanical strength, low direct current impedance and the like, and is suitable for interference occasions of high-frequency and low-frequency mixing.

As shown in fig. 5, the conductor of the monitoring wire core 7 is formed by adopting an aramid fiber wire center to strengthen and mixing and twisting a plurality of copper foil wires and copper wires, specifically, 10 copper foil wires and 15 copper wires are twisted by adopting a bundle twisting wire distribution disc to carry out right-direction bundle twisting, 6 bundle twisting wire cores are twisted by taking the aramid fiber wires as the center, electric separation paper is wrapped around the conductors after twisting, an insulating layer 71 of 125 ℃ ethylene propylene rubber mixture is extruded outside the electric separation paper, the insulating thickness is 0.9mm, a copper wire shielding layer 72 is woven outside the insulating layer 71, the shielding density is not less than 80%, a layer of thin flame-retardant cloth tape is wrapped outside the copper wire shielding layer 72, a CPE rubber mixture protective layer 73 is extruded outside the copper wire shielding layer, the thickness of the protective sleeve is 1.4mm, and the overall outer diameter of the monitoring wire core 7 is about 7.5mm.

The conductors of the wire cores adopt high-quality copper wires with copper content not less than 99.95%, so that good electrical performance of the cable is ensured.

In addition, still be provided with inoxidizing coating 8 outside the cabling core, specifically around wrapping in the fire-retardant strap 81 outside the cabling core, fire-retardant strap 81 is outer to be woven and to have high strength glass fiber silk layer 82, high strength glass fiber silk layer 82 is outer to be crowded to be wrapped with high temperature resistant TPV mixed elastomer material's sheath 83, thickness 5.0mm, this material has excellent ageing resistance and good fire-resistant, heat resistance, cable softness is high, and has excellent environmental protection performance and repeatedly usable, ensure that the cable can have good all kinds of performances under the prerequisite of guaranteeing tensile, satisfy special use occasion's requirement. The sheath 83 is externally wrapped with an alkali-free glass fiber belt 84 with the thickness of 0.2mm, and a tin-plated copper wire layer 85 is woven outside the alkali-free glass fiber belt 84, so that the high-temperature-resistant and wear-resistant effects are achieved, and the weaving density is greater than 90%.

In conclusion, the intelligent high-temperature-resistant electric comprehensive cable is reasonably designed for occasions requiring high temperature resistance and water and electricity at the same time, such as a power wire core, a control wire core, a signal wire core, a main water pipe and the like, so that the problem of winding in the cable wiring process is avoided, the service lives of the cable and the water pipe can be effectively prolonged, the current carrying capacity of the cable is increased, the safe operation of the cable is ensured, and the equipment is safely used.

The above embodiments merely illustrate the basic principles and features of the present invention, and the present invention is not limited to the above examples, but can be variously changed and modified without departing from the spirit and scope of the present invention, which is within the scope of the present invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. The intelligent high-temperature-resistant electric integrated cable is characterized by comprising a cable-forming wire core, wherein the cable-forming wire core comprises a main water pipe, a power wire core and a control signal wire core group, the main water pipe, the power wire core and the control signal wire core group are twisted into a cable, a filling core is arranged at the center of the cable-forming wire core, a monitoring wire core is clamped in an edge gap, a flame-retardant cloth belt is wrapped outside the cable-forming wire core, a high-strength glass fiber wire layer is woven outside the flame-retardant cloth belt, a sheath is extruded outside the high-strength glass fiber wire layer, an alkali-free glass fiber belt is wrapped outside the sheath, and a tin-plated copper wire layer is woven outside the alkali-free glass fiber belt;

the main water pipe adopts a hose made of high-temperature resistant materials at three intervals, fine steel wires and aramid fibers are adopted for mixed knitting outside the hose, and the knitting density is not less than 80%;

The filling core comprises a central steel wire rope, ethylene propylene diene monomer rubber is extruded outside the central steel wire rope to be insulated, an aramid fiber wire reinforcing layer is woven outside the aramid fiber wire reinforcing layer, and a pentagonal special-shaped outer protector is extruded outside the aramid fiber wire reinforcing layer in a manner of corresponding to one main water pipe, three power wire cores and one control signal wire core group;

the power wire core conductor comprises an aramid fiber braided tube which is pulled by taking a water hose as a center and a plurality of copper guide cores which are stranded around the aramid fiber braided tube, wherein the copper guide cores are stranded into a single strand by a plurality of copper wire bundles, the conductor is wrapped with a fluorophlogopite belt, the lap rate is not less than 30%, and the fluorophlogopite belt is extruded outside the belt to form power wire core insulation.

2. The intelligent high-temperature-resistant electric integrated cable of claim 1, wherein the power cable core is insulated by a high-strength high-tearing-resistant silicon rubber material, the tensile strength reaches 8MPa, the tearing strength reaches 30kN/m, and the conductor temperature resistance grade reaches 180 ℃.

3. The intelligent high-temperature-resistant electric integrated cable of claim 1, wherein the control signal wire core group is formed by cabling a plurality of control wire cores and signal wire cores around a central reinforcing pipe, the central reinforcing pipe is formed by towing a water hose and weaving an outer surface by adopting aramid fiber, and a flame-retardant cloth belt is wrapped after cabling.

4. The intelligent high-temperature-resistant electric integrated cable of claim 3, wherein the conductors of the control wire core are formed by regularly twisting a plurality of strands of copper wires with reinforced steel wire rope centers, a protective layer is woven on the surface of the twisted copper wires, the weaving density is not less than 60%, a flame-retardant belt is wrapped outside the protective layer, and the control wire core is insulated by extrusion coating outside the flame-retardant belt.

5. The intelligent high-temperature-resistant electric composite cable of claim 3, wherein the conductors of the signal wire core are stranded by adopting a plurality of copper wires, a plurality of aramid wires are added at the center during stranding, 125 ℃ ethylene propylene rubber is extruded for insulation after stranding, two conductors are twisted into a cable and then are wrapped with an aluminum-plastic composite belt, a tin-plated copper wire shielding layer is woven outside the aluminum-plastic composite belt, and a polyester belt is wrapped outside the tin-plated copper wire shielding layer.

6. The intelligent high-temperature-resistant electric integrated cable of claim 1, wherein the conductors of the monitoring cable cores are formed by mixing and twisting a plurality of copper foil wires and copper wires, wherein the conductors are reinforced by aramid fiber wires, electric isolation paper is wrapped around the conductors after twisting, an insulating layer of 125 ℃ ethylene propylene rubber mixture is extruded outside the electric isolation paper, a copper wire shielding layer is woven outside the insulating layer, a flame-retardant cloth belt is wrapped outside the copper wire shielding layer, and a CPE rubber mixture protective layer is extruded outside the copper wire shielding layer.

7. The intelligent high temperature resistant electric composite cable of claim 1 wherein the sheath is extruded from a high temperature resistant TPV blended elastomer material.