Cable with high-temperature-resistant structure

Abstract

The utility model discloses a cable with a high-temperature-resistant structure, which comprises an inorganic fireproof layer, a metal fireproof layer arranged inside the inorganic fireproof layer, a heat insulation layer arranged inside the metal fireproof layer, copper conductors uniformly distributed inside the heat insulation layer, a protective sleeve arranged outside the copper conductors, and a steel belt layer arranged outside the metal fireproof layer. And a connecting layer is arranged between the steel belt layer and the inorganic fireproof layer. According to the utility model, through the arrangement of the inorganic fireproof layer, the metal fireproof layer and the heat insulation layer, when the cable is used in high-temperature industries such as smelting, heat treatment, glass manufacturing and the like, the cable is not easy to be melted and damaged due to accidental encountering of high-temperature objects, so that the high-temperature-resistant effect of the cable is better, and the inorganic fireproof layer is made of low-cost glass fibers, so that the service life of the cable is prolonged. And the manufacturing cost of the high-temperature-resistant cable is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of cables, in particular to a cable with a high temperature resistant structure. Background Art

[0002] Cable is an indispensable material in industrial production. Various equipment are needed in industrial production, and the operation of equipment cannot be separated from electricity. Therefore, cable is an important hub for power transmission of equipment and plays an important role in industrial production.

[0003] Chinese Patent No. 201820418303.9 discloses a tensile cable, including a conductive core, the outer periphery of which is coated with a first insulating layer; a tensile member, which is a spiral structure and is wound around the outer periphery of the first insulating layer; the outer periphery of the tensile member and the first insulating layer is coated with a second insulating layer. Although the cable in the above patent has a certain tensile effect, its high temperature resistance is poor when used in high temperature industries such as smelting, heat treatment and glass manufacturing, which makes the cable easily melt and break due to accidental encounter with high temperature objects. Therefore, it is urgent to design a cable with a high temperature resistant structure to solve the above problems. Utility Model Content

[0004] The purpose of the utility model is to provide a cable with a high temperature resistant structure to solve the above-mentioned deficiencies in the prior art.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] A cable with a high temperature resistant structure comprises an inorganic fire-resistant layer, a metal fire-resistant layer is arranged inside the inorganic fire-resistant layer, a heat-insulating layer is arranged inside the metal fire-resistant layer, a uniformly distributed copper conductor is arranged inside the heat-insulating layer, a protective sheath is arranged outside the copper conductor, the metal fire-resistant layer comprises a steel belt layer, and a connecting layer is arranged between the steel belt layer and the inorganic fire-resistant layer.

[0007] Furthermore, the inorganic fire-resistant layer includes a first glass fiber tape and a second glass fiber tape, and the first glass fiber tape and the second glass fiber tape are interwoven with each other.

[0008] Furthermore, a protective layer is provided inside the heat-insulating layer, and a filling body is provided between the protective layer and the protective sleeve.

[0009] Furthermore, a center line is arranged at the center of the filling body, and a dividing plate which is centrally symmetrically distributed is arranged on an outer wall of the center line, and the dividing plate is located between two adjacent copper conductors.

[0010] Furthermore, the protective sleeve includes an insulating layer, and the outer wall of the insulating layer is provided with a shielding layer.

[0011] Furthermore, the copper conductor includes a copper wire, and the cross-section of the copper wire is hexagonal.

[0012] In the above technical scheme, the utility model provides a cable with a high-temperature resistant structure, and its beneficial effects are as follows: by setting an inorganic refractory layer, a metal refractory layer and a heat-insulating layer, the cable is not easy to melt and break due to accidental encounter with a high-temperature object when used in high-temperature industries such as smelting, heat treatment and glass manufacturing, thereby making the cable have better high-temperature resistance, and the inorganic refractory layer is made of low-cost glass fiber, which reduces the manufacturing cost of the high-temperature resistant cable; the steel belt layer and the inorganic refractory layer are bonded by the setting of a connecting layer, which on the one hand achieves the effect of fixing the inorganic refractory layer, and at the same time can fill the gap between the inorganic refractory layer and the steel belt layer, so that the high-temperature liquid is not easy to pass through the gap to cause damage to the cable; by setting a center line and a dividing plate, the center line and the dividing plate are both made of fluororubber, so that the two adjacent copper conductors can be further isolated to prevent breakdown between the two adjacent copper conductors. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the present utility model. For ordinary technicians in this field, other drawings can also be obtained based on these drawings.

[0014] Figure 1 The utility model provides an overall structural schematic diagram of a cable embodiment with a high temperature resistant structure.

[0015] Figure 2 This is a schematic diagram of the enlarged structure of point A provided for an embodiment of a cable with a high temperature resistant structure of the utility model.

[0016] Description of reference numerals:

[0017] 1 inorganic fire-resistant layer, 2 metal fire-resistant layer, 3 insulation layer, 4 protective layer, 5 glass fiber tape 1, 6 glass fiber tape 2, 7 filling body, 8 copper conductor, 9 protective sleeve, 10 center line, 11 dividing plate, 12 shielding layer, 13 insulation layer, 14 copper wire, 15 steel tape layer, 16 connecting layer. DETAILED DESCRIPTION

[0018] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further described in detail below in conjunction with the accompanying drawings.

[0019] like Figure 1-2As shown, an embodiment of the utility model provides a cable with a high temperature resistant structure, comprising an inorganic refractory layer 1, a metal refractory layer 2 is arranged inside the inorganic refractory layer 1, a heat insulating layer 3 is arranged inside the metal refractory layer 2, a uniformly distributed copper conductor 8 is arranged inside the heat insulating layer 3, a protective sheath 9 is arranged outside the copper conductor 8, the metal refractory layer 2 comprises a steel belt layer 15, and a connecting layer 16 is arranged between the steel belt layer 15 and the inorganic refractory layer 1.

[0020] Specifically, in this embodiment, an inorganic refractory layer 1 is included, the inorganic refractory layer 1 is made of glass fiber material, a metal refractory layer 2 is arranged inside the inorganic refractory layer 1, the metal refractory layer 2 is made of steel material, a heat insulation layer 3 is arranged inside the metal refractory layer 2, the heat insulation layer 3 is made of rock wool material with good heat insulation effect, a uniformly distributed copper conductor 8 is arranged inside the heat insulation layer 3, the copper conductor 8 is a conductor for transmitting power through the cable, a protective sleeve 9 is arranged outside the copper conductor 8, the metal refractory layer 2 includes a steel belt layer 15, the steel belt layer 15 is made of The steel wires are woven together, and a bonding layer 16 is arranged between the steel belt layer 15 and the inorganic refractory layer 1. The bonding layer 16 is a high-temperature resistant inorganic nano-composite adhesive made by condensation polymerization of inorganic nano-materials, and its temperature resistance can reach 1800°C. The steel belt layer 15 and the inorganic refractory layer 1 are bonded by the bonding layer 16, which can fix the inorganic refractory layer 1 on the one hand, and fill the gap between the inorganic refractory layer 1 and the steel belt layer 15 at the same time, so that the high-temperature liquid is not easy to pass through the gap to cause damage to the cable.

[0021] The utility model provides a cable with a high temperature resistant structure. By arranging an inorganic refractory layer 1, a metal refractory layer 2 and a heat insulating layer 3, the cable is not easily melted and damaged due to accidental encounter with high temperature objects when used in high temperature industries such as smelting, heat treatment and glass manufacturing, thereby making the cable have better high temperature resistance. In addition, the inorganic refractory layer 1 is made of low-cost glass fiber, which reduces the manufacturing cost of the high temperature resistant cable.

[0022] In another embodiment provided by the utility model, the inorganic refractory layer 1 includes a glass fiber tape 1 5 and a glass fiber tape 2 6, the glass fiber tape 1 5 and the glass fiber tape 2 6 are interwoven with each other, the glass fiber tape 1 5 and the glass fiber tape 2 6 are both made of glass fiber material, and the inorganic refractory layer 1 made of glass fiber material is arranged on the outermost part, so that it also has a certain heat insulation effect; a protective layer 4 is arranged inside the heat insulation layer 3, and the protective layer 4 is a high-density polyethylene base resin, and high-quality carbon black masterbatch and other related processing aids are added, and the mixing and granulation are formed, and a filling body 7 is arranged between the protective layer 4 and the protective sleeve 9, and the filling body 7 is made of polypropylene material; a center line 10 is arranged at the center of the filling body 7, and the outer wall of the center line 10 is provided with a dividing plate 1 distributed symmetrically with the center. 1. The dividing plate 11 is located between two adjacent copper conductors 8. The center line 10 and the dividing plate 11 are both made of fluororubber, so that the two adjacent copper conductors 8 can be further isolated from each other to prevent breakdown between the two adjacent copper conductors 8; the protective sleeve 9 includes an insulating layer 13, and the insulating layer 13 is made of cross-linked polyethylene insulating material. The outer wall of the insulating layer 13 is provided with a shielding layer 12, and the shielding layer 12 is made of aluminum foil, so that the anti-interference performance of the cable is better; the copper conductor 8 includes a copper wire 14, and the copper wire 14 has a plurality of copper wires, and the cross-section of the copper wire 14 is hexagonal. When the hexagonal copper wires 14 are arranged, the contact surface between the two adjacent copper wires 14 is larger, so that the electrical conductivity of the cable is better when in use.

[0023] Working principle: The inorganic refractory layer 1 made of glass fiber is adopted, so that the surface of the cable can withstand a high temperature of 600°C without melting, and the steel belt layer 15 is adopted as the metal refractory layer 2, so that the cable further has the effect of high temperature melting resistance and extremely strong puncture resistance. The bonding layer 16 adopted is a high temperature resistant inorganic nano-composite adhesive made of inorganic nano-materials through condensation reaction, and its temperature resistance can reach 1800°C. The bonding layer 16 bonds the steel belt layer 15 and the inorganic refractory layer 1, on the one hand, it can achieve the effect of fixing the inorganic refractory layer 1, and at the same time it can also fill the gap between the inorganic refractory layer 1 and the steel belt layer 15, so that the high temperature liquid is not easy to pass through the gap to cause damage to the cable.

[0024] The above only describes some exemplary embodiments of the present invention by way of illustration. It is undoubted that those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A cable with a high temperature resistant structure, characterized in that: The invention comprises an inorganic refractory layer (1), a metal refractory layer (2) is arranged inside the inorganic refractory layer (1), a heat insulating layer (3) is arranged inside the metal refractory layer (2), a uniformly distributed copper conductor (8) is arranged inside the heat insulating layer (3), a protective sleeve (9) is arranged outside the copper conductor (8), the metal refractory layer (2) comprises a steel belt layer (15), and a bonding layer (16) is arranged between the steel belt layer (15) and the inorganic refractory layer (1).

2. A cable with a high temperature resistant structure according to claim 1, characterized in that: The inorganic fire-resistant layer (1) comprises a first glass fiber tape (5) and a second glass fiber tape (6), wherein the first glass fiber tape (5) and the second glass fiber tape (6) are interwoven with each other.

3. The cable with a high temperature resistant structure according to claim 1, characterized in that: A protective layer (4) is arranged inside the heat insulation layer (3), and a filling body (7) is arranged between the protective layer (4) and the protective sleeve (9).

4. A cable with a high temperature resistant structure according to claim 3, characterized in that: A center line (10) is arranged at the center of the filling body (7), and a dividing plate (11) distributed in a centrally symmetrical manner is arranged on the outer wall of the center line (10), and the dividing plate (11) is located between two adjacent copper conductors (8).

5. The cable with a high temperature resistant structure according to claim 1, characterized in that: The protective sleeve (9) comprises an insulating layer (13), and the outer wall of the insulating layer (13) is provided with a shielding layer (12).

6. The cable with a high temperature resistant structure according to claim 1, characterized in that: The copper conductor (8) comprises a copper wire (14), and the cross section of the copper wire (14) is hexagonal.

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