A high-strength and high-temperature resistant power cable

Abstract

The utility model discloses a high-strength and high-temperature resistant power cable, comprising a cable core body and an insulating layer sleeved on the outer side of the cable core body, wherein the cable core body and the insulating layer are arranged in three groups in a herringbone shape, and a protective layer is arranged on the outer side of the insulating layer, and a filling layer is arranged on the outer side of the filling layer, a heat-conducting layer is arranged on the outer side of the filling layer, and an inner protective layer is arranged on the outer side of the heat-conducting layer. In the high-strength and high-temperature resistant power cable, the insulating layer, the protective layer and the cable core body are arranged in three groups at equal angles inside the cable, which can effectively ensure the stability of the power supply of the cable, and the arrangement can improve the anti-bending effect, and at the same time can insulate the cable core body, the quartz stone can absorb the heat inside the filling layer, reduce the influence of high temperature on the cable core body, and the quartz stone can dissipate heat, reduce the accumulation of heat inside the cable, thereby improving the heat resistance of the cable as a whole.

Description

Technical Field

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

[0002] Cable is a device for transmitting electric energy or signals, usually composed of several or several groups of wires. Cables can be divided into power cables, control cables, compensation cables, shielded cables, etc. according to their different uses. With the continuous improvement of cable production technology, the proportion of cables in power lines continues to increase. However, the existing power cables still have certain defects in use, such as:

[0003] The utility model announcement number CN215342121U discloses a high-strength power cable, which increases the mechanical strength of the inner core of the cable, has good bending performance, and also has the advantages of large communication capacity, high transmission stability, good confidentiality, and less impact by natural conditions and external interference. By setting a reinforcement layer, a non-woven isolation layer and a metal braided layer, it has excellent properties such as ultra-high strength, high modulus, high temperature resistance, acid and alkali resistance, and light weight. It also has good insulation and anti-aging properties, increases the anti-fatigue performance of the power cable, and extends the service life of the power cable;

[0004] In the above document, during the use of the cable, the insulating layer can be set, and it has outstanding comprehensive performance, high temperature resistance, and corrosion resistance. The insulating layer is set on the outside of the cable inner core and the waterproof layer, and the insulating layer and the cable inner core are set in five groups at equal angles inside the cable, and the insulating layer is located in the middle of the cable. Moreover, the cable is only insulated by the insulating layer, which can easily cause the internal temperature of the cable to rise under high temperature conditions, affecting the normal power transmission effect of the cable, resulting in limited thermal insulation effect of the cable.

[0005] In view of the above problems, it is urgent to carry out innovative design based on the original cable structure. Utility Model Content

[0006] The purpose of the utility model is to provide a high-strength and high-temperature resistant power cable to solve the problem proposed in the above-mentioned background technology that the cable is only insulated by an insulating layer, which easily causes the temperature inside the cable to rise under high temperature conditions, affecting the normal power transmission effect of the cable and resulting in limited thermal insulation effect of the cable.

[0007] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a high-strength and high-temperature resistant power cable, comprising a cable core body and an insulating layer sheathed outside the cable core body;

[0008] It also includes: the cable core body and the insulation layer are arranged in three groups in a herringbone shape, and a protective layer is arranged on the outside of the insulation layer, and a filling layer is arranged on the outside of the filling layer, a heat conductive layer is arranged on the outside of the filling layer, and an inner protective layer is arranged on the outside of the heat conductive layer.

[0009] Preferably, quartz blocks are arranged inside the filling layer, and the quartz blocks are evenly distributed inside the filling layer, and the size of the quartz blocks is between 0.1 mm and 0.3 mm.

[0010] Preferably, heat-conducting cavities are opened at equal angles on the outside of the heat-conducting layer, and the heat-conducting cavities are distributed at equal angles on the outside of the heat-conducting layer, and the heat-conducting layer is in close contact with the inner protective layer, and the heat-conducting cavities are circular in side view.

[0011] Preferably, an anti-stretching layer is arranged on the outer side of the inner protective layer, and anti-stretching wires are arranged at equal angles inside the anti-stretching layer, and the diameter of the anti-stretching wires is 0.05 mm, and the anti-stretching wires are made of iron-tin alloy.

[0012] Preferably, a flame retardant layer is arranged on the outer side of the anti-stretching layer, a heat conduction groove is opened on the outer side of the flame retardant layer, and an outer protective layer is arranged on the outer side of the flame retardant layer, and the thickness of the anti-stretching layer is nine millimeters.

[0013] Preferably, the heat-conducting grooves are distributed at equal angles on the outside of the flame-retardant layer, and the heat-conducting grooves are arc-shaped structures when viewed from the front, and the heat-conducting grooves are in close contact with the inner surface of the outer protective layer, and the thickness of the flame-retardant layer is three millimeters.

[0014] Preferably, the outer protective layer and the protective layer are both made of polyimide, and the thickness of the protective layer is two millimeters. The protective layer is arranged corresponding to the cable core body, and the thickness of the outer protective layer is five millimeters.

[0015] Compared with the prior art, the beneficial effects of the utility model are:

[0016] 1. An insulating layer and a protective layer are provided. The insulating layer, the protective layer and the cable core body are arranged in three groups at equal angles inside the cable, which can effectively ensure the stability of the power supply of the cable, and the arrangement can improve the anti-bending effect and insulate the cable core body at the same time;

[0017] 2. A filling layer and a quartz block are provided. The quartz stone can absorb the heat inside the filling layer, reduce the influence of high temperature on the cable core body, and the quartz stone can dissipate heat, reduce the accumulation of heat inside the cable, thereby improving the heat resistance of the cable as a whole;

[0018] 3. Furthermore, a heat-conducting layer and a heat-conducting cavity are provided, and the heat-conducting cavities are distributed at equal angles inside the heat-conducting layer, so that gaps can be left inside the heat-conducting layer, so that the cable can expand and contract under high temperature conditions, thereby avoiding bleeding, expansion and cracking of the cable and ensuring the working stability of the cable;

[0019] 4. Furthermore, a flame retardant layer and a heat conduction groove are provided. The flame retardant layer can effectively prevent the influence of high temperature on its internal structure, and the heat conduction groove outside the flame retardant layer can increase the heat dissipation area outside the flame retardant layer body, thereby reducing the influence of high temperature on the cable body;

[0020] 5. Furthermore, an anti-stretching layer and anti-stretching wires are provided. The thickness of the anti-stretching layer can ensure the anti-stretching effect of the power cable, and the anti-stretching wires distributed at equal angles inside the anti-stretching layer are made of alloy material, which can effectively enhance the overall anti-stretching effect of the cable. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is a schematic diagram of the front cross-sectional structure of the utility model;

[0022] Figure 2 This is a schematic diagram of the front cross-sectional structure of the insulation layer of the utility model;

[0023] Figure 3 For this utility model Figure 1 A is an enlarged structural diagram;

[0024] Figure 4 This is a schematic diagram of the three-dimensional structure of the heat-conducting layer of the utility model;

[0025] Figure 5 This is a schematic diagram of the three-dimensional structure of the anti-stretching layer of the utility model;

[0026] Figure 6 It is a schematic diagram of the three-dimensional structure of the outer protective layer of the utility model.

[0027] In the figure: 1. Cable core body; 2. Insulation layer; 3. Protective layer; 4. Filling layer; 5. Quartz block; 6. Heat conduction layer; 7. Heat conduction cavity; 8. Inner protective layer; 9. Anti-stretching layer; 10. Anti-stretching wire; 11. Flame retardant layer; 12. Heat conduction groove; 13. Outer protective layer. DETAILED DESCRIPTION

[0028] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0029] Embodiment 1: This embodiment Figure 1 and Figure 6 As shown, in order to solve the problems of heat insulation and tensile strength of the power cable, the use process of the high-strength and high-temperature resistant power cable for the heating cable is disclosed, and the effect of rapid laying of the heating cable is achieved. The specific contents are as follows:

[0030] A cable core body 1 and an insulating layer 2 sheathed outside the cable core body 1;

[0031] The cable core body 1 and the insulating layer 2 are arranged in three groups in a herringbone shape, and a protective layer 3 is arranged on the outside of the insulating layer 2, and a filling layer 4 is arranged on the outside of the filling layer 4, a heat conductive layer 6 is arranged on the outside of the filling layer 4, and an inner protective layer 8 is arranged on the outside of the heat conductive layer 6.

[0032] When using the high-strength, high-temperature resistant power cable, first install the power cable at the location where work is required. During the installation of the power cable, the three groups of cable core bodies 1 need to be docked. After the docking is completed, power can be transmitted through the power cable. The high-temperature resistant structure and anti-tensile structure arranged inside the cable can effectively ensure the stability of the cable while ensuring the heat insulation and anti-tensile effects of the power cable.

[0033] Embodiment 2: This embodiment is as follows Figure 1-Figure 4 and Figure 6 As shown, in order to solve the problem of high temperature resistance of the power cable, the working process of the high temperature resistant structure is disclosed, and the effect that the heating cable can work stably under high temperature conditions is achieved. The specific contents are as follows:

[0034] The filling layer 4 is provided with quartz blocks 5, and the quartz blocks 5 are evenly distributed inside the filling layer 4, and the size of the quartz blocks 5 is between 0.1 mm and 0.3 mm;

[0035] The outer side of the heat-conducting layer 6 is provided with heat-conducting cavities 7 at equal angles, and the heat-conducting cavities 7 are distributed at equal angles on the outer side of the heat-conducting layer 6, and the heat-conducting layer 6 is in close contact with the inner protective layer 8, and the heat-conducting cavities 7 are circular in side view;

[0036] The outer side of the inner protective layer 8 is provided with an anti-stretching layer 9, and the inner side of the anti-stretching layer 9 is provided with anti-stretching wires 10 at equal angles, and the diameter of the anti-stretching wires 10 is 0.05 mm, and the anti-stretching wires 10 are made of iron-tin alloy;

[0037] A flame retardant layer 11 is arranged outside the anti-stretching layer 9, a heat conduction groove 12 is opened outside the flame retardant layer 11, and an outer protective layer 13 is arranged outside the flame retardant layer 11. Meanwhile, the thickness of the anti-stretching layer 9 is nine millimeters.

[0038] During the use of the high-strength and high-temperature resistant power cable, the cable core body 1, the insulating layer 2 and the protective layer 3 are arranged in three groups at equal angles inside the power cable, which can reduce the heat accumulation of the cable core body 1 itself and accelerate the loss of heat generated by itself. The cable core body 1 is arranged inside the insulating layer 2 and the protective layer 3, which can ensure the stability of the cable core body 1 in power transmission. The protective layer 3 and the outer protective layer 13 are both made of polyimide, which can effectively enhance the thermal insulation effect of the power cable. The quartz block 5 inside the filling layer 4 can absorb the heat inside the filling layer 4 when the temperature inside the filling layer 4 rises, and when the temperature of the filling layer 4 is lower than the quartz block 5, the quartz block 5 will release heat and lower its own temperature, thereby achieving the effect of controlling the internal temperature of the power cable, reducing the influence of high temperature on the power transmission capacity of the cable core body 1, and ensuring the stability of the power cable.

[0039] Embodiment 3: This embodiment is as follows Figure 1 , Figure 3 and Figure 5-Figure 6 As shown, in order to solve the problem that the power cable is prone to breakage during stretching or bending, the working process of the internal anti-stretching structure of the power cable is disclosed, and the anti-stretching effect of the power cable is achieved. The specific contents are as follows:

[0040] The heat-conducting grooves 12 are distributed at equal angles on the outside of the flame-retardant layer 11, and the heat-conducting grooves 12 are arc-shaped structures when viewed from the front, and the heat-conducting grooves 12 are in close contact with the inner surface of the outer protective layer 13, and the thickness of the flame-retardant layer 11 is three millimeters;

[0041] The outer protective layer 13 and the protective layer 3 are both made of polyimide, and the thickness of the protective layer 3 is two millimeters. The protective layer 3 is arranged corresponding to the cable core body 1, and the thickness of the outer protective layer 13 is five millimeters.

[0042] When using the high-strength and high-temperature resistant power cable, the cable core body 1, the insulating layer 2 and the protective layer 3 are tightly fitted inside the cable and are distributed at equal angles along the center of the cable, which can enhance the radial force effect of the power cable, that is, the anti-bending effect of the cable, and the quartz blocks 5 inside the filling layer 4 are granular, which can provide support to each other, further enhancing the anti-bending effect of the power cable, and the anti-stretching layer 9 is the thickest material outside the cable core body 1, which can effectively ensure the stability of the cable during the stretching process, and the anti-stretching wires 10 distributed at equal angles inside the anti-stretching layer 9 are made of alloy material, which can further enhance the overall anti-stretching effect of the power cable. At this point, the anti-stretching process of the power cable is completed, the anti-stretching effect of the power cable is effectively improved, and the overall practicality is increased.

[0043] The contents not described in detail in this specification belong to the prior art known to professional and technical personnel in this field.

[0044] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A high-strength, high-temperature-resistant power cable, comprising a cable core body (1) and an insulating layer (2) sheathed outside the cable core body (1); It is characterized in that Also includes: The cable core body (1) and the insulating layer (2) are arranged in three groups in a herringbone shape, and a protective layer (3) is arranged on the outside of the insulating layer (2), and a filling layer (4) is arranged on the outside of the filling layer (4), a heat conducting layer (6) is arranged on the outside of the filling layer (4), and an inner protective layer (8) is arranged on the outside of the heat conducting layer (6).

2. A high-strength, high-temperature resistant power cable according to claim 1, characterized in that: Quartz blocks (5) are arranged inside the filling layer (4), and the quartz blocks (5) are evenly distributed inside the filling layer (4), and the size of the quartz blocks (5) is between 0.1 mm and 0.3 mm.

3. A high-strength, high-temperature resistant power cable according to claim 1, characterized in that: The heat-conducting layer (6) is provided with heat-conducting cavities (7) at equal angles on the outside, and the heat-conducting cavities (7) are distributed at equal angles on the outside of the heat-conducting layer (6), the heat-conducting layer (6) is in close contact with the inner protective layer (8), and the heat-conducting cavities (7) are circular in structure when viewed from the side.

4. A high-strength and high-temperature resistant power cable according to claim 1, characterized in that: An anti-stretching layer (9) is arranged on the outer side of the inner protective layer (8), and anti-stretching wires (10) are arranged at equal angles inside the anti-stretching layer (9), and the diameter of the anti-stretching wires (10) is 0.05 millimeters. At the same time, the anti-stretching wires (10) are made of an iron-tin alloy.

5. A high-strength, high-temperature resistant power cable according to claim 4, characterized in that: A flame retardant layer (11) is arranged on the outer side of the anti-stretching layer (9), a heat conduction groove (12) is opened on the outer side of the flame retardant layer (11), and an outer protective layer (13) is arranged on the outer side of the flame retardant layer (11), and the thickness of the anti-stretching layer (9) is nine millimeters.

6. A high-strength, high-temperature resistant power cable according to claim 5, characterized in that: The heat-conducting grooves (12) are distributed at equal angles on the outside of the flame-retardant layer (11), and the heat-conducting grooves (12) are arc-shaped structures when viewed from the front, and the heat-conducting grooves (12) are in close contact with the inner surface of the outer protective layer (13), and the thickness of the flame-retardant layer (11) is three millimeters.

7. A high-strength, high-temperature resistant power cable according to claim 5, characterized in that: The outer protective layer (13) and the protective layer (3) are both made of polyimide, and the thickness of the protective layer (3) is two millimeters. The protective layer (3) and the cable core body (1) are arranged correspondingly, and the thickness of the outer protective layer (13) is five millimeters.

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