An intelligent high-temperature resistant integrated water and electricity cable

Abstract

The present invention discloses an intelligent high-temperature resistant comprehensive water and electricity cable, which comprises a cable core. The cable core includes a main water delivery pipe, a power core and a control signal core group. The main water delivery pipe, the power core and the control signal core group are stranded into a cable. A filling core is arranged at the center of the cable core, and a monitoring core is clamped in the edge gap. A flame-retardant cloth tape is wound around the cable core, a high-strength glass fiber wire layer is woven outside the flame-retardant cloth tape, a sheath is extruded outside the high-strength glass fiber wire layer, an alkali-free glass fiber tape is wound outside the sheath, and a tinned copper wire layer is woven outside the alkali-free glass fiber tape. The above-mentioned intelligent high-temperature resistant comprehensive water and electricity cable is designed reasonably for occasions with simultaneous requirements for high temperature resistance, water and electricity, such as the power core, the control core, the signal core, the main water delivery pipe, etc., avoiding the problem of winding during the cable wiring process, and can effectively extend the service life of the cable and the water delivery pipe. At the same time, the current-carrying capacity of the cable is increased, ensuring the safe operation of the cable and the safe use of the equipment.

Description

Technical Field

[0001] The present invention relates to the field of cable technology, and in particular to an intelligent high-temperature resistant hydropower integrated cable, which is used in situations where the main line core is a low-voltage power system, the cable usage conditions involve high temperature resistance and water transmission. Background Art

[0002] In recent years, with the improvement of comprehensive national strength and rapid socioeconomic development, the operating conditions of various equipment and cables have also experienced rapid growth. In many industries, such as manufacturing and services, the simultaneous demand for water and electricity has also increased. Therefore, in such situations, when cables and water pipes are connected separately, problems such as unprotected water pipes, entanglement during installation or use, easy damage, and inconvenient storage may arise. Furthermore, the current-carrying capacity of the cables is limited, making them prone to failure during operation and posing safety risks to the equipment. Summary of the Invention

[0003] Based on the above problems, the purpose of the present invention is to provide an intelligent high-temperature resistant water and electricity integrated cable, which is suitable for occasions where high-temperature resistant water and electricity are required at the same time, avoids the problem of entanglement during cable wiring, extends the service life of cables and water pipes, and ensures the safe use of equipment.

[0004] To achieve the above object, the present invention adopts the following technical solutions:

[0005] An intelligent high-temperature resistant hydropower integrated cable includes a cable core, which includes 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 are twisted into a cable, and a filling core is provided in the center of the cable core, and a monitoring core is sandwiched in the edge gap. The cable core is wrapped with a flame-retardant cloth tape, and a high-strength glass fiber layer is woven outside the flame-retardant cloth tape. A sheath is extruded outside the high-strength glass fiber layer, and an alkali-free glass fiber tape is wrapped outside the sheath. A tinned copper wire layer is woven outside the alkali-free glass fiber tape.

[0006] In particular, the main water pipe adopts a hose made of high-temperature resistant material divided into three equal parts, and the outside of the hose is mixed with fine steel wire and aramid wire, with a braiding density of not less than 80%.

[0007] In particular, the conductor of the power core includes an aramid wire braided tube pulled with a water hose as the center and several copper conductors twisted around the aramid wire braided tube. The copper conductor is twisted into a single strand by multiple copper wire bundles, and the conductor is wrapped with fluorphlogopite tape with an overlap rate of not less than 30%. The power core insulation is extruded outside the fluorphlogopite tape.

[0008] In particular, the power line core insulation adopts high-strength and high-tear-resistant silicone rubber material with a tensile strength of 8MPa, a tear strength of 30kN / m, and a conductor temperature resistance level of 180°C.

[0009] In particular, the control signal wire core group is formed by stranding a number of control wire cores and signal wire cores around a central strengthening tube. The central strengthening tube is towed by a water hose and its outer surface is woven with aramid yarns. After stranding, a flame-retardant cloth tape is wrapped around it.

[0010] In particular, the conductor of the control wire core is strengthened by a steel wire rope in the center and regularly stranded by multiple strands of copper wires. After stranding, a protective layer is woven with copper wires on the surface, and the braiding density is not less than 60%. A flame-retardant tape is wrapped outside the protective layer, and a control wire core insulation is extruded outside the flame-retardant tape.

[0011] In particular, the conductor of the signal wire core is stranded by multiple copper wires, and multiple aramid yarns are added in the center during stranding. After stranding, 125°C ethylene propylene diene monomer (EPDM) rubber insulation is extruded. After two conductors are twisted and stranded, an aluminum-plastic composite tape is wrapped around them. A tinned copper wire partial shielding layer is woven outside the aluminum-plastic composite tape, and a polyester tape is wrapped outside the tinned copper wire partial shielding layer.

[0012] In particular, the filling core includes a central steel wire rope. Ethylene propylene diene monomer (EPDM) rubber insulation is extruded outside the central steel wire rope, and then an aramid yarn strengthening layer is woven. A pentagonal special-shaped outer sheath is extruded outside the aramid yarn strengthening layer corresponding to one main water delivery pipe, three power wire cores and one control signal wire core group.

[0013] In particular, the conductor of the monitoring wire core is strengthened by aramid yarns in the center and mixed-stranded by multiple copper foil wires and copper wires. After stranding, an electrical separation paper is wrapped around it. An insulation layer of 125°C ethylene propylene diene monomer (EPDM) rubber mixture is extruded outside the electrical separation paper. A copper wire shielding layer is woven outside the insulation layer, a flame-retardant cloth tape is wrapped outside the copper wire shielding layer, and a chlorinated polyethylene (CPE) rubber mixture sheath is extruded.

[0014] In particular, the sheath is extruded from a high-temperature resistant thermoplastic vulcanizate (TPV) mixed elastomer material.

[0015] In summary, the beneficial effects of the present invention are as follows. The intelligent high-temperature resistant integrated water and electricity cable is designed reasonably for the occasions with requirements for high temperature resistance and simultaneous needs for water and electricity, such as power wire cores, control wire cores, signal wire cores, main water delivery pipes, etc., avoiding the problem of entanglement during the cable wiring process, effectively extending the service life of the cable and water delivery pipe, increasing the current-carrying capacity of the cable at the same time, ensuring the safe operation of the cable and the safe use of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 is a schematic structural diagram of the intelligent high-temperature resistant integrated water and electricity cable provided by the embodiment of the present invention;

[0017] Figure 2 is a schematic structural diagram of the filling core in the intelligent high-temperature resistant integrated water and electricity cable provided by the embodiment of the present invention;

[0018] Figure 3 is a schematic structural diagram of the power wire core in the intelligent high-temperature resistant integrated water and electricity cable provided by the embodiment of the present invention;

[0019] Figure 4 It is a schematic structural diagram of the control signal wire core group in the intelligent high-temperature-resistant water and electricity integrated cable provided by an embodiment of the present invention;

[0020] Figure 5 It is a schematic structural diagram of the monitoring wire core in the intelligent high-temperature-resistant water and electricity integrated cable provided by an embodiment of the present invention. Specific Embodiments

[0021] The embodiments of the present invention will be described in detail below. The examples of the embodiments are shown in the accompanying drawings, where the same or similar reference numerals denote the same or similar components or components with the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to explain the present invention and should not be construed as a limitation to the present invention.

[0022] In the description of the present invention, unless otherwise clearly defined and limited, the terms "connected", "connected to", and "fixed" shall be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, a mechanical connection, an electrical connection, a direct connection, or an indirect connection through an intermediate medium. It may be the internal communication of two components or the interaction relationship between two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0023] In the description of the present invention, unless otherwise clearly defined and limited, the first feature being "above" or "below" the second feature may include the direct contact between the first feature and the second feature, or may include the situation where the first feature and the second feature are not in direct contact but in contact through other features therebetween. Moreover, the first feature being "above", "above", and "on" the second feature includes that the first feature is directly above and obliquely above the second feature, or simply means that the horizontal height of the first feature is higher than that of the second feature. The first feature being "below", "below", and "under" the second feature includes that the first feature is directly below and obliquely below the second feature, or simply means that the horizontal height of the first feature is lower than that of the second feature.

[0024] The technical solution of the present invention will be further described below in conjunction with the accompanying drawings and specific embodiments.

[0025] Please refer to Figure 1As shown in the figure, this preferred embodiment provides an intelligent high-temperature resistant integrated water and electricity cable, which includes a cable core. The cable core includes a main water pipe 1, a power core 2, and a control signal core group. A filling core 3 is arranged in the center of the cable core, and a monitoring core 7 is clamped in the edge gap. Taking the cable specification of 3*70 + 4*6 + 2*2*0.75 + 1*φ20 as an example, this embodiment is further described. Among them, the cable core is formed by stranding one main water pipe 1, three power cores 2 and a control signal core group into a cable. Five monitoring cores 7 are distributed in the edge gaps of the cable core, and the lay ratio of the total cable is controlled within 10 to 12 times.

[0026] Specifically, as Figure 2 shown, the filling core 3 includes a central steel wire rope 31. With a 3.0mm steel wire rope as the traction, ethylene propylene diene monomer (EPDM) rubber insulation 32 is extruded, and then an aramid fiber strengthening layer 33 is woven. Corresponding to one main water pipe 1, three power cores 2 and a control signal core group, a pentagonal special-shaped outer sheath 34 is extruded outside the aramid fiber strengthening layer 33 to completely fill the void area in the center of the cores arranged at intervals. The size of the filling core 3 needs to ensure that during cabling, each core is completely located at the designated position of the filling core 3, ensuring that the cable is round, compact, and the cable cores are arranged stably.

[0027] The main water pipe 1 uses a hose made of a high-temperature resistant material with three equally spaced intervals, with a diameter of 20mm. The outside of the hose is mixed-woven with fine steel wires and aramid fibers, and the weaving density is not less than 80%. The mixed-woven structure strengthens the tensile performance and protective effect of the main water pipe 1 while ensuring flexibility.

[0028] As Figure 3 shown, the conductor of the power core 2 includes an aramid fiber braided tube 21 with a water hose as the central traction and several copper conductor cores 22 stranded around the aramid fiber braided tube 21. The copper conductor cores 22 are stranded from multiple copper wire bundles into single strands, and the outer diameter of the conductor is about 16.0mm. The specific process is to strand 33 single wires of 0.254mm using a stranding and dividing disk during the stranding process, and then strengthen the 6-strand stranded wire core around the central steel wire rope and perform double stranding according to the regular arrangement of 1 + 6. A φ6.0 water hose is used as the traction, and aramid fibers are woven on a 16-spindle braiding machine (the aramid fibers need to be dried before use), and then the 7-strand steel wire rope-strengthened double-stranded copper conductor cores 22 are evenly stranded around the aramid fiber braided tube 21.

[0029] Furthermore, two layers of 0.17mm thick double-sided fluorphlogopite tape 23 are wrapped around the conductor to tighten the conductor and make the cable fire-resistant, ensuring that the tape coverage rate is not less than 30%. The fluorphlogopite tape 23 is extruded with power core insulation 24. The power core insulation 24 preferably uses high-strength and high-tear resistance silicone rubber material with an insulation thickness of 1.6mm, a tensile strength of 8MPa, a tear strength of 30kN / m, and a conductor temperature resistance grade of 180°C, ensuring the current carrying capacity and softness of the power core 2. During use, the conductor is safe when the temperature is high for a short time.

[0030] like Figure 4 As shown, the control signal core group consists of four control cores 4 and two signal cores 5 twisted together around a central reinforcement tube 6. The central reinforcement tube 6 is tractioned by a water hose and braided with aramid yarn. After cabling, it is wrapped with flame-retardant fabric tape. The specific process is that a φ6.0 water hose is used as the traction, and aramid yarn is braided on a 16-spindle braiding machine (the aramid yarn needs to be dried before use). The four control cores 4 and two signal cores 5 are arranged in a 1+6 sequence around the central reinforcement tube 6 and twisted in a right-hand direction to form a unit cable core. The unit cable pitch ratio is controlled at 8-10 times. After the unit cable is cabled, a layer of thin flame-retardant fabric tape is wrapped around it. Then, a layer of tinned copper wire is braided using a 24-spindle braiding machine with a braiding density of not less than 80%. After braiding, a layer of thin flame-retardant fabric tape is wrapped around it.

[0031] The conductor of the control core 4 is reinforced with a steel wire rope and is made of 114 0.254mm copper wires twisted in a regular manner. It is twisted in the same direction according to the regular arrangement of 1+6. After twisting, the surface is woven with copper wire with a protective layer 41, and the weaving density is not less than 60%. The protective layer 41 is wrapped with a layer of flame retardant tape 42, and the flame retardant tape 42 is extruded with a control core insulation 43. The control core insulation 43 is made of silicone rubber with good performance and high dielectric strength. The nominal insulation thickness is 1.2mm, which ensures the softness and high temperature resistance of the cable.

[0032] The signal line core 5's conductor is constructed from multiple twisted copper wires with multiple aramid yarns at the center. Specifically, 24 0.195 mm monofilaments are twisted in a left-hand direction around a single 1500D aramid yarn. After twisting, the strands are braided with oven-dried copper foil, with a braid density of at least 90%. After braiding, the braid is wrapped with a layer of non-woven fabric. Finally, 125°C EPDM rubber insulation 51 is extruded, with a nominal thickness of 0.8 mm.

[0033] During the twisting process of the signal wire cores 5, the twisting pitch is controlled within 100 mm to ensure that the pitch ratio does not exceed 14 times. And to ensure the tensile strength of the signal wire cores, sufficient aramid fiber materials are filled in the side gaps during twisting, and the twisted shape is made round. After twisting, a layer of aluminum-plastic composite tape 52 is wrapped around, and then braided with 0.15 mm tinned copper wires to ensure that the braiding density is not less than 90%, forming a tinned copper wire partial shielding layer 53. There are two layers of polyester tapes 54 wrapped around the tinned copper wire partial shielding layer 53.

[0034] The shielding form using the aluminum-plastic composite tape 52 and copper wire braiding shielding can provide the best shielding effect across the entire frequency spectrum, has excellent mechanical strength and low DC impedance, etc., and is suitable for interference occasions with a mixture of high and low frequencies.

[0035] As Figure 5 shown, the conductor of the monitoring wire core 7 is made of aramid fiber as the center reinforcement and multiple copper foil wires and copper wires are mixed and twisted. Specifically, 10 copper foil wires and 15 copper wires are right-handed bunch-twisted using a bunch-twisting and dividing disk, and 6-strand bunch-twisted wire cores are re-twisted with aramid fiber as the center. After twisting, electrical separation paper is wrapped around, and an insulating layer 71 of 125 °C ethylene propylene diene monomer rubber mixture is extruded outside the electrical separation paper. The insulation thickness is 0.9 mm. A copper wire shielding layer 72 is braided outside the insulating layer 71, and the shielding density is not less than 80%. A thin flame-retardant cloth tape is wrapped around the copper wire shielding layer 72, and a CPE rubber mixture sheath 73 is extruded, with a sheath thickness of 1.4 mm. The overall outer diameter of the monitoring wire core 7 is about 7.5 mm.

[0036] The conductors of each of the above wire cores use high-quality copper wires with a copper content of not less than 99.95% to ensure good electrical performance of the cable.

[0037] In addition, a protective layer 8 is also provided outside the cabled wire cores. Specifically, a flame-retardant cloth tape 81 wrapped around the cabled wire cores, a high-strength glass fiber layer 82 is braided outside the flame-retardant cloth tape 81, and a sheath 83 of high-temperature TPV hybrid elastomer material is extruded outside the high-strength glass fiber layer 82, with a thickness of 5.0 mm. This material has excellent anti-aging performance and good fire and heat resistance. The cable has high softness, and has excellent environmental protection performance and can be reused, ensuring that the cable can have good various performances under the premise of ensuring tensile strength and meet the requirements of special use occasions. An alkali-free glass fiber tape 84 with a thickness of 0.2 mm is wrapped around the sheath 83, and a tinned copper wire layer 85 is braided outside the alkali-free glass fiber tape 84, with a braiding density greater than 90%, which plays roles such as high-temperature resistance and wear resistance.

[0038] In summary, the above intelligent high-temperature resistant integrated water and electricity cable is designed reasonably for the power line core, control line core, signal line core, main water delivery pipe, etc. in the occasion where high temperature resistance and simultaneous requirements for water and electricity are needed, avoiding the problem of winding during the cable wiring process, effectively prolonging the service life of the cable and water delivery pipe, increasing the current-carrying capacity of the cable at the same time, ensuring the safe operation of the cable and the safe use of the equipment.

[0039] The above embodiments only illustrate the basic principles and characteristics of the present invention. The present invention is not limited by the above examples. Without departing from the spirit and scope of the present invention, there are various changes and modifications to the present invention, and these changes and modifications all fall within the scope of the present invention claimed. The scope of the present invention claimed is defined by the appended claims and their equivalents.

Claims

1. An intelligent high-temperature resistant integrated water and electricity cable, characterized in that, The cable core comprises 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 are twisted into a cable, a filling core is provided in the center of the cable core, a monitoring core is sandwiched in the edge gap, the cable core is wrapped with a flame-retardant cloth tape, a high-strength glass fiber layer is woven outside the flame-retardant cloth tape, a sheath is extruded outside the high-strength glass fiber layer, an alkali-free glass fiber tape is wrapped outside the sheath, and a tinned copper wire layer is woven outside the alkali-free glass fiber tape; The main water pipe adopts a three-spaced equally divided hose made of high-temperature resistant material. The outer surface of the hose is braided with fine steel wire and aramid wire, with a braiding density of not less than 80%; The filling core includes a central steel wire rope, the central steel wire rope is extruded with EPDM rubber insulation, and then woven with an aramid yarn reinforcement layer, and the aramid yarn reinforcement layer is extruded with a pentagonal special-shaped outer sheath corresponding to one of the main water pipes, three of the power cores, and one of the control signal cores; The conductor of the power core includes an aramid wire braided tube pulled with a water hose as the center and several copper conductors twisted around the aramid wire braided tube. The copper conductor is twisted into a single strand by multiple copper wire bundles, and the conductor is wrapped with fluorphlogopite tape with an overlap rate of not less than 30%. The fluorphlogopite tape is extruded with power core insulation.

2. The intelligent high-temperature resistant integrated water and electricity cable according to claim 1, wherein: The power line core insulation adopts high-strength and high-tear resistance silicone rubber material, with a tensile strength of 8MPa, a tear strength of 30kN / m, and a conductor temperature resistance level of 180°C.

3. The intelligent high-temperature resistant integrated water and electricity cable according to claim 1, wherein: The control signal wire core group is formed by twisting a plurality of control wire cores and signal wire cores around a central reinforcement tube. The central reinforcement tube is pulled by a water hose and is woven with aramid yarn on the surface. After being cabled, it is wrapped with flame-retardant cloth tape.

4. The intelligent high-temperature resistant integrated water and electricity cable according to claim 3, characterized in that: The conductor of the control core is reinforced with a steel wire rope and is made of multiple copper wires twisted in a regular manner. After twisting, the surface is woven with copper wire with a protective layer, and the weaving density is not less than 60%. The protective layer is wrapped with a flame retardant tape, and the flame retardant tape is extruded with control core insulation.

5. The intelligent high-temperature resistant integrated water and electricity cable according to claim 3, wherein: The conductor of the signal core is made of multiple copper wires twisted together, with multiple aramid wires added in the center during twisting. After twisting, 125°C EPDM rubber insulation is extruded. Two conductors are twisted into a cable and wrapped with an aluminum-plastic composite tape. A tinned copper wire sub-shielding layer is woven outside the aluminum-plastic composite tape, and a polyester tape is wrapped outside the tinned copper wire sub-shielding layer.

6. The intelligent high-temperature resistant integrated water and electricity cable according to claim 1, characterized in that: The conductor of the monitoring wire core is reinforced with aramid wire and is made of a mixture of copper foil wires and copper wires. After twisting, it is wrapped with electrical insulation paper. The electrical insulation paper is extruded with an insulation layer of 125°C EPDM rubber mixture. The insulation layer is woven with a copper wire shielding layer. The copper wire shielding layer is wrapped with a flame retardant cloth tape and extruded with a CPE rubber mixture protective layer.

7. The intelligent high-temperature resistant integrated water and electricity cable according to claim 1, wherein: The sheath is made of high-temperature resistant TPV mixed elastomer material by extrusion.

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