High-temperature-resistant anti-cracking power cable

Abstract

The utility model discloses a high-temperature-resistant anti-cracking power cable which comprises a wire body, the wire body further comprises a plurality of conductors and a wire core, a glass fiber filling layer is wrapped among the plurality of conductors, a high-temperature-resistant layer is wrapped on the outer wall of the glass fiber filling layer, an armor layer is wrapped on the outer wall of the high-temperature-resistant layer, a PE waterproof layer is wrapped on the outer wall of the armor layer, and the PE waterproof layer is wrapped on the outer wall of the PE waterproof layer. The outer wall of the PE waterproof layer is wrapped by the bending-resistant layer, the outer wall of the bending-resistant layer is wrapped by the steel wire mesh layer, and the steel wire mesh layer is wrapped by the outer protective layer, so that the high-temperature-resistant layer is matched for use, the wire body can be effectively protected, the wire can continuously and stably work in a high-temperature environment, and the high-temperature-resistant performance is good; and the glass fiber filling layer, the bending-resistant layer and the steel wire mesh layer are matched for use, so that the structural strength of the wire body is improved, when the cable is influenced by external force or environmental factors, the risk of cracking or direct fracture is avoided, the use safety of the wire body is improved, and the heat resistance and the pulling resistance of the cable are improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to power cable technical field, concretely is a kind of high-temperature-resistant anti-cracking power cable. BACKGROUND

[0002] Power cable is the cable for transmission and distribution of electric energy, power cable is often used in urban underground power network, power station outgoing line, industrial and mining enterprise internal power supply and cross-river underwater power transmission line, in power line, the proportion of cable is gradually increasing, power cable is the cable product for transmission and distribution of high-power electric energy in the main line of power system, including 1-500kV and various voltage grades, various insulation power cables.

[0003] Among many power cable categories, the use of high-temperature-resistant anti-cracking cable plays an important role in the power industry, high-temperature-resistant anti-cracking cable has good high-temperature resistance, can safely operate in high-temperature environment, prevent the insulation layer and conductor of cable from being damaged, and prevent cable from cracking, while the existing high-temperature-resistant anti-cracking cable has a single internal structure, which is easily affected by insufficient structural strength of the cable itself, external force and environmental factors during long-term use of the cable, resulting in damage to the cable, thereby affecting the normal use of the cable and increasing the risk of cracking. UTILITY MODEL CONTENT

[0004] The utility model aims at providing a kind of high-temperature-resistant anti-cracking power cable, by the cooperation of high-temperature-resistant layer, the wire body can be effectively protected, can withstand continuous stable work in high-temperature environment, with good high-temperature resistance, and cooperate with the use of glass fiber filling layer, bending-resistant layer and steel wire mesh layer, improve the structural strength of wire body, when cable is affected by external force or environmental factors, there is no risk of cracking or direct fracture, improve the safety of wire body use, improve the heat resistance and tensile resistance of wire body.

[0005] To achieve the above object, the utility model provides the following technical scheme: a kind of high-temperature-resistant anti-cracking power cable, including wire body, the wire body further includes multiple conductors and wire core, multiple the conductor is collectively wrapped with glass fiber filling layer between, the outer wall of the glass fiber filling layer is wrapped with high-temperature-resistant layer, the outer wall of the high-temperature-resistant layer is wrapped with armored layer, the outer wall of the armored layer is wrapped with PE waterproof layer, the outer wall of the PE waterproof layer is wrapped with bending-resistant layer, the outer wall of the bending-resistant layer is wrapped with steel wire mesh layer, the steel wire mesh layer is wrapped with outer sheath, the outer wall of the outer sheath is wrapped with wear-resistant layer, the wire core is twisted by multiple strands of copper wire.

[0006] The utility model discloses beneficial effect is: through the use of the armored layer and glass fiber filling layer, can promote the structural strength of the conductor body, the waterproof layer is waterproof to the conductor body inside, the use of the bending resistance layer and steel wire mesh layer, promote the toughness of the conductor body, prevent the problem that the conductor body breaks down under the influence of external force pulling or environmental factor, make the structural strength of the conductor body strengthen, cooperate the use of the high temperature resistance layer, make the conductor can be in high temperature environment, normal operation, guarantee the stability of the conductor body.

[0007] In order to realize the structural strength of the conductor body and promote, prevent the external force pulling fracture, make the conductor body can effectively bear high temperature, guarantee normal operation.

[0008] As the further improvement of the above technical scheme: the conductor core outer wall is wrapped with mica tape wrapping, and the mica tape wrapping outer wall is wrapped with an inner protective layer.

[0009] The beneficial effect of the improvement is: by the use of mica tape wrapping, the first pair of conductor core is protected, which effectively shields and prevents the loose of multiple copper wires, affecting the normal use of the conductor, and the inner protective layer can play an insulating protection role.

[0010] In order to realize the shielding and insulation of the conductor core, effectively protect the conductor core.

[0011] As the further improvement of the above technical scheme: a plurality of the inner protective layers are provided with a limiting ring therebetween, a limiting block is fixedly connected to the outer wall of the limiting ring, and the limiting block is attached to the inner protective layer.

[0012] The beneficial effect of the improvement is: by the use of the limiting ring and the limiting block, multiple conductors can be supported and limited, the stability of the conductor is guaranteed, the position of the multiple conductors cannot be changed at will, and the structure of the entire conductor body is more stable.

[0013] In order to realize the limiting and fixing of the conductor.

[0014] As the further improvement of the above technical scheme: the limiting ring is provided with a steel wire rope at the center position.

[0015] The beneficial effect of the improvement is: by the use of the steel wire rope, the cable is supported, fixed and protected inside the cable, preventing the cable from being pulled by external force and causing the risk of fracture.

[0016] In order to realize the support and strengthening of the inside of the conductor body.

[0017] As the further improvement of the above technical scheme: a plurality of first rubber strips are evenly distributed between the steel wire rope and the limiting ring, and the plurality of first rubber strips are evenly distributed around the axis of the steel wire rope.

[0018] The improved beneficial effect is that the structural strength of the wire body can be improved by using the plurality of first rubber strips, and the wire center position can be effectively filled to make the plurality of wires stable enough;

[0019] In order to realize the filling of the wire body center position and improve the structural strength of the wire body;

[0020] As a further improvement of the above technical solution: the bending-resistant layer is composed of a plurality of second rubber strips, and the plurality of second rubber strips are uniformly distributed around the axis of the PE waterproof layer.

[0021] The improved beneficial effect is that the toughness of the wire body can be improved by using the plurality of second rubber strips, and the stability of the wire body structure can be ensured during the complete process of the wire body to prevent the risk of breakage;

[0022] In order to realize the improvement of the toughness of the wire body and improve the structural strength of the wire body;

[0023] As a further improvement of the above technical solution: the glass fiber filling layer is composed of a plurality of glass fiber strips.

[0024] The improved beneficial effect is that the glass fiber filling layer can be composed by using the plurality of glass fiber strips, the mechanical strength of the wire body can be effectively improved, the tensile performance can be improved, and the wire body can be prevented from being corroded;

[0025] In order to realize the strengthening of the structural strength of the wire body. BRIEF DESCRIPTION OF DRAWINGS

[0026] Figure 1 The isometric structure schematic view provided by the present application is provided;

[0027] Figure 2 The top view provided by the present application is provided;

[0028] Figure 3 The isometric structure schematic view provided by the present application is provided; Figure 2 The enlarged view of A in the present application is provided;

[0029] Figure 4 The isometric structure schematic view provided by the present application is provided; Figure 3 The enlarged view of A in the present application is provided;

[0030] In the figure, 1, conductor body; 11, conductor; 12, conductor core; 13, glass fiber filling layer; 14, high temperature resistant layer; 15, armored layer; 16, PE waterproof layer; 17, bending resistant layer; 18, steel mesh layer; 19, outer protective layer; 20, wear resistant layer; 21, copper wire; 31, mica tape wrapping; 32, inner protective layer; 41, limiting ring; 42, limiting block; 51, steel wire rope; 61, first rubber strip; 71, second rubber strip; 81, glass fiber strip. DETAILED DESCRIPTION

[0031] In order for those skilled in the art to better understand the technical scheme of the utility model, the utility model is described in detail below in combination with the drawings, and the description in this part is only exemplary and explanatory, and should not have any limiting effect on the protection scope of the utility model.

[0032] As Figures 1 to 4As shown, the utility model embodiment provides a kind of high-temperature resistant anti-cracking power cable, including wire body 1, wire body 1 also includes multiple conductors 11 and wire core 12, multiple conductors 11 are collectively wrapped with glass fiber filling layer 13, glass fiber filling layer 13 is made of several glass fiber strips 81, by the use of several glass fiber strips 81, glass fiber filling layer 13 is formed, the mechanical strength of wire body 1 is improved, four conductors 11 are protected, glass fiber filling layer 13 outer wall is wrapped with high-temperature resistant layer 14, high-temperature resistant layer 14 can effectively withstand high temperature environment, guarantee wire body 1 normal operation under high temperature environment, high-temperature resistant layer 14 outer wall is wrapped with armor layer 15, armor layer 15 outer wall is wrapped with PE waterproof layer 16, PE waterproof layer 16 outer wall is wrapped with bending-resistant layer 17, bending-resistant layer 17 outer wall is wrapped with steel mesh layer 18, steel mesh layer 18 is wrapped with outer protective layer 19, outer protective layer 19 outer wall is wrapped with wear-resistant layer 20, wire core 12 is stranded by multiple copper wires 21, the use of steel mesh layer 18 and bending-resistant layer 17 can improve the toughness of wire body 1, there is no risk of rupture in the process of being pulled by external force, wire core 12 outer wall is wrapped with mica tape wrapping 31, mica tape wrapping 31 outer wall is wrapped with inner protective layer 32, the use of mica wrapping layer can protect wire core 12, effectively shield and insulate, prevent four conductors 11 from affecting each other, can effectively protect wire core 12, multiple inner protective layers 32 are provided with limiting ring 41, limiting block 42 is fixedly connected on the outer wall of limiting ring 41, limiting block 42 is attached to inner protective layer 32, the use of limiting ring 41 and limiting block 42 can support and limit four conductors 11, ensure that four conductors 11 are evenly distributed, make the structure inside entire wire body 1 stable, improve the mechanical strength of wire body 1, steel wire rope 51 can be filled and protected in the center of wire body 1, improve the strength of wire body 1, to deal with the pulling of external force, prevent wire body 1 from breaking, multiple first rubber strips 61 are evenly distributed between steel wire rope 51 and limiting ring 41, multiple first rubber strips 61 are evenly distributed with the axis of steel wire rope 51, bending-resistant layer 17 is made of several second rubber strips 71, several second rubber strips 71 are evenly distributed with the axis of PE waterproof layer 16, the use of multiple first rubber strips 61 and several second rubber strips 71 can enhance the structural strength of wire body 1, improve the toughness of wire body 1, can deal with the pulling caused by external force.

[0033] The working principle and use process of the utility model: when using, the structure inside the wire body 1 is protected through the wear -resisting and the outer protective layer 19, the use of steel wire mesh layer 18 and the bending resistance layer 17 can improve the toughness of wire body 1, be used to respond to the pulling of external force or the influence of environmental factors, the PE waterproof layer 16 can effectively waterproof, the high temperature layer 14 can make wire body 1 bear high temperature environment, always keep stable operation, the use of mica tape winding 31 and inner protective layer 32 can protect wire core 12, realize effective shielding and insulation, prevent four conductors 11 between mutual influence, and cooperate with the use of glass fiber filling layer 13, the structure inside the cable is protected, the structure of wire body 1 is improved, and the service life of the wire is prolonged.

[0034] The content not described in detail in the description belongs to the prior art known to the person skilled in the art.

[0035] Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions recorded in the foregoing embodiments or make equivalent replacement to part of the technical features, and any modification, equivalent replacement, improvement, etc. within the spirit and principle of the utility model should be included in the protection scope of the utility model.

Claims

1. A high temperature resistant anti-cracking power cable comprising a conductor body (1), characterized in that: The wire body (1) further comprises a plurality of conductors (11) and a wire core (12), the plurality of conductors (11) are collectively wrapped with a glass fiber filling layer (13), the outer wall of the glass fiber filling layer (13) is wrapped with a high-temperature resistant layer (14), and the outer wall of the high-temperature resistant layer (14) is wrapped with an armor layer (15); The outer wall of the armor layer (15) is wrapped with a PE waterproof layer (16), the outer wall of the PE waterproof layer (16) is wrapped with a bending-resistant layer (17), the outer wall of the bending-resistant layer (17) is wrapped with a steel mesh layer (18), the steel mesh layer (18) is wrapped with an outer protective layer (19), the outer wall of the outer protective layer (19) is wrapped with a wear-resistant layer (20), and the wire core (12) is twisted by a plurality of copper wires (21).

2. A high temperature resistant anti-cracking power cable according to claim 1, characterized in that: The outer wall of the wire core (12) is wrapped with a mica tape wrapping (31), and the outer wall of the mica tape wrapping (31) is wrapped with an inner protective layer (32).

3. A high temperature resistant anti-cracking power cable according to claim 2, characterized in that: A plurality of the inner protective layers (32) are provided with a limiting ring (41) therebetween, a limiting block (42) is fixedly connected to the outer wall of the limiting ring (41), and the limiting block (42) is attached to the inner protective layer (32).

4. A high temperature resistant anti-cracking power cable according to claim 3, characterized in that: A steel wire rope (51) is arranged at the center position of the limiting ring (41).

5. A high temperature resistant anti-cracking power cable according to claim 4, characterized in that: A plurality of uniformly distributed first rubber strips (61) are arranged between the steel wire rope (51) and the limiting ring (41), and the plurality of first rubber strips (61) are uniformly distributed about the axis of the steel wire rope (51).

6. A high temperature resistant anti-cracking power cable according to claim 1, characterized in that: The bending-resistant layer (17) is composed of a plurality of second rubber strips (71), and the plurality of second rubber strips (71) are uniformly distributed about the axis of the PE waterproof layer (16).

7. A high temperature resistant anti-cracking power cable according to claim 1, characterized in that: The glass fiber filling layer (13) is composed of a plurality of glass fiber strips (81).

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