Marine light power cable

Abstract

The utility model relates to the technical field of power cables, and discloses a marine light power cable, which comprises a support framework, a main lead is arranged in the support framework, auxiliary leads are arranged in the support framework, the auxiliary leads are arranged in a circumferential array, a wrapping tape is arranged on the outer surface of the support framework, and the wrapping tape is arranged on the outer surface of the support framework. A flame-retardant structure is arranged on the outer surface of the wrapping tape, an armor layer is arranged on the outer surface of the flame-retardant structure, an outer sheath is arranged on the outer surface of the armor layer, a sleeving groove is formed in the supporting framework, an inner cavity of the sleeving groove is connected with a main wire in a sleeving mode, a fan-shaped groove is formed in the supporting framework, and the inner cavity of the fan-shaped groove is connected with the outer sheath in a sleeving mode. The supporting framework is provided with a fan-shaped groove, the auxiliary wire is located in the fan-shaped groove, the outer surface of the supporting framework forms an arc end face, the arc end face is connected with the wrapping tape in a wrapping mode, the fan-shaped groove and the wrapping tape form a filling cavity, and the auxiliary wire is located in the filling cavity. According to the utility model, the flame-retardant performance of the cable can be improved, and the flame-retardant effect is good.

Description

Technical Field

[0001] The utility model relates to the technical field of power cables, in particular to a light power cable for ships. Background Art

[0002] The existing patented ship power cable, with publication number CN101853714B, includes a conductor, an insulating layer, a wrapping tape, an armor layer and an outer sheath; the insulating layer is made of cross-linked polyethylene or cross-linked polyolefin polymer insulation material, and the temperature resistance grade of the insulating layer is 95°C; the insulating layer is coated on the outside of the conductor, and the two together constitute the insulating core of the cable; when there are 2 to 4 insulating cores, the cable also includes a filling strip made of low-smoke halogen-free foamed polyolefin material, and the wrapping tape is wrapped around the outside of the twisted insulating core and the filling strip; when there is 1 insulating core, the wrapping tape is directly wrapped around the outside of the insulating layer of the insulating core; the armor layer is woven from aluminum alloy wire and is located on the outside of the wrapping tape; the outer sheath is made of cross-linked polyolefin polymer material and is located on the outside of the armor layer. The product is light in weight, reliable in performance and durable.

[0003] Although the above devices are light in weight, reliable in performance and durable in use, the flame retardant effect of the cables is poor. Therefore, we propose a light marine power cable. Utility Model Content

[0004] 1. Technical issues to be resolved

[0005] In view of the deficiencies in the prior art, the utility model provides a light marine power cable, which has the advantages of improving the flame retardant performance of the cable and having a good flame retardant effect, thereby solving the problem of poor flame retardant effect of the cable.

[0006] (II) Technical solution

[0007] In order to achieve the above-mentioned purpose of improving the flame retardant performance of the cable and achieving a good flame retardant effect, the utility model provides the following technical solution: a light ship power cable, comprising a supporting skeleton, a main conductor is arranged inside the supporting skeleton, a secondary conductor is arranged inside the supporting skeleton, the secondary conductors are arranged in a circular array, a wrapping tape is arranged on the outer surface of the supporting skeleton, a flame retardant structure is arranged on the outer surface of the wrapping tape, an armor layer is arranged on the outer surface of the flame retardant structure, an outer sheath is arranged on the outer surface of the armor layer, so as to improve the flame retardant performance of the cable and achieve a good flame retardant effect.

[0008] As a preferred technical solution of the utility model, a sleeve groove is provided inside the support frame, and the inner cavity of the sleeve groove is sleeve-connected with the main conductor;

[0009] A fan-shaped groove is provided inside the support frame, and the auxiliary conductor is located in the fan-shaped groove.

[0010] As a preferred technical solution of the utility model, the outer surface of the support frame forms an arc end surface, and the arc end surface is connected to the wrapping tape. The main conductor and the auxiliary conductor are respectively arranged in the sleeve groove and the fan-shaped groove to prevent the conductors from contacting each other and causing short circuit.

[0011] As a preferred technical solution of the utility model, the fan-shaped groove and the wrapping tape form a filling cavity, the auxiliary conductor is located in the filling cavity, and the filling cavity is filled with powdered polytetrafluoroethylene resin. By filling the filling cavity with powdered polytetrafluoroethylene resin, when the main conductor and the auxiliary conductor generate heat during operation, the filled powdered polytetrafluoroethylene resin can effectively reduce the temperature inside the cable and improve the heat resistance of the cable, thereby effectively reducing the temperature inside the cable and improving the heat resistance of the cable.

[0012] As a preferred technical solution of the utility model, the flame retardant structure includes a first flame retardant layer, the first flame retardant layer is arranged on the outer surface of the wrapping tape, the outer surface of the first flame retardant layer is provided with a second flame retardant layer, the outer surface of the second flame retardant layer is provided with a third flame retardant layer, the outer surface of the third flame retardant layer is connected with the armor layer, and the first flame retardant layer, the second flame retardant layer and the third flame retardant layer are arranged in sequence on the outer surface of the wrapping tape. When the cable burns, the first flame retardant layer, the second flame retardant layer and the third flame retardant layer can play a role in flame retardancy, mitigation and prevention of fire spread, thereby facilitating the improvement of the flame retardant performance of the cable, and the flame retardant effect is good.

[0013] As a preferred technical solution of the present invention, the first flame retardant layer, the second flame retardant layer and the third flame retardant layer are respectively a silicone rubber layer, a graphene layer and a flame retardant polyolefin layer.

[0014] As a preferred technical solution of the utility model, the wrapping tape is a halogen-free tape, the armor layer is woven from aluminum alloy wires, and the outer sheath is made of a cross-linked polyolefin polymer material.

[0015] (III) Beneficial effects

[0016] Compared with the prior art, the utility model provides a light-weight marine power cable, which has the following beneficial effects:

[0017] 1. The marine light power cable is provided with a first flame retardant layer, a second flame retardant layer and a third flame retardant layer in sequence on the outer surface of the wrapping tape, and then the armor layer and the outer sheath are provided in sequence on the outer surface of the third flame retardant layer. When the cable burns, the first flame retardant layer, the second flame retardant layer and the third flame retardant layer can play the role of flame retardant, slowing down and preventing the spread of fire, thereby facilitating the improvement of the flame retardant performance of the cable, and the flame retardant effect is good.

[0018] 2. The shipborne light power cable arranges the main conductor and the auxiliary conductor in the sleeve groove and the fan-shaped groove respectively to prevent the conductors from contacting each other and causing short circuit, and then wraps the wrapping tape around the arc end face of the supporting frame to form a filling cavity with the fan-shaped groove, and then fills the filling cavity with powdered polytetrafluoroethylene resin. When the main conductor and the auxiliary conductor generate heat during operation, the filled powdered polytetrafluoroethylene resin can effectively reduce the temperature inside the cable and improve the heat resistance of the cable, thereby effectively reducing the temperature inside the cable and improving the heat resistance of the cable. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a main stereoscopic view of the utility model;

[0020] Figure 2 For this utility model Figure 1 Enlarged view of point A in the middle;

[0021] Figure 3 This is a three-dimensional diagram of the support frame of the utility model.

[0022] In the figure: 1. Support frame; 11. Socket groove; 12. Fan-shaped groove; 13. Arc end face; 2. Main conductor; 3. Auxiliary conductor; 4. Wrapping tape; 5. Flame retardant structure; 51. First flame retardant layer; 52. Second flame retardant layer; 53. Third flame retardant layer; 6. Armor layer; 7. Outer sheath. DETAILED DESCRIPTION

[0023] In order to make the above-mentioned purposes, features and advantages of the present invention more obvious and easy to understand, the specific implementation methods of the present invention are described in detail below in conjunction with the accompanying drawings.

[0024] Example 1

[0025] Reference Figure 1-3 , which is the first embodiment of the utility model, provides a light ship-use power cable, including a support skeleton 1, a main conductor 2 is arranged inside the support skeleton 1, an auxiliary conductor 3 is arranged inside the support skeleton 1, the auxiliary conductor 3 is arranged in a circular array, the outer surface of the support skeleton 1 is provided with a wrapping tape 4, the outer surface of the wrapping tape 4 is provided with a flame retardant structure 5, the outer surface of the flame retardant structure 5 is provided with an armor layer 6, and the outer surface of the armor layer 6 is provided with an outer sheath 7.

[0026] A sleeve groove 11 is provided inside the support frame 1, and the inner cavity of the sleeve groove 11 is sleeve-connected with the main conductor 2;

[0027] A fan-shaped groove 12 is provided inside the supporting frame 1 , and the auxiliary conductor 3 is located in the fan-shaped groove 12 .

[0028] The outer surface of the supporting frame 1 forms an arc end surface 13 , and the arc end surface 13 is connected to the wrapping tape 4 by wrapping.

[0029] The fan-shaped groove 12 and the wrapping tape 4 form a filling cavity, and the auxiliary conductor 3 is located in the filling cavity. At the same time, the filling cavity is filled with powdered polytetrafluoroethylene resin. Polytetrafluoroethylene resin is a perfluoropolymer composed of CF2 and CF3 units. All hydrogen atoms in the molecule are replaced by fluorine atoms. It has excellent chemical resistance, wear resistance, low friction coefficient, insulation, high temperature stability and other characteristics.

[0030] During use, the main conductor 2 and the auxiliary conductor 3 are respectively arranged in the sleeve groove 11 and the fan-shaped groove 12 to prevent the conductors from contacting each other and causing a short circuit, and then the wrapping tape 4 is wrapped around the arc end surface 13 of the support frame 1 to form a filling cavity with the fan-shaped groove 12, and then the filling cavity is filled with powdered polytetrafluoroethylene resin. When the main conductor 2 and the auxiliary conductor 3 generate heat during operation, the filled powdered polytetrafluoroethylene resin can effectively reduce the temperature inside the cable and improve the heat resistance of the cable, thereby effectively reducing the temperature inside the cable and improving the heat resistance of the cable.

[0031] Example 2

[0032] Reference Figure 1-3 , which is the second embodiment of the utility model. This embodiment is different from the first embodiment in that: the flame retardant structure 5 includes a first flame retardant layer 51, the first flame retardant layer 51 is arranged on the outer surface of the wrapping tape 4, the outer surface of the first flame retardant layer 51 is provided with a second flame retardant layer 52, the outer surface of the second flame retardant layer 52 is provided with a third flame retardant layer 53, and the outer surface of the third flame retardant layer 53 is connected to the armor layer 6.

[0033] The first flame retardant layer 51, the second flame retardant layer 52 and the third flame retardant layer 53 are respectively a silicone rubber layer (silicone rubber is a polymer material with good flame retardancy and high temperature resistance), a graphene layer (graphene is composed of carbon atoms, has only a single layer thickness, and is a new type of nanomaterial) and a flame retardant polyolefin layer.

[0034] The wrapping tape 4 is a halogen-free tape, the armor layer 6 is woven from aluminum alloy wires, and the outer sheath 7 is made of a cross-linked polyolefin polymer material.

[0035] During use, by sequentially arranging the first flame retardant layer 51, the second flame retardant layer 52 and the third flame retardant layer 53 on the outer surface of the wrapping tape 4, and then sequentially arranging the armor layer 6 and the outer sheath 7 on the outer surface of the third flame retardant layer 53, when the cable burns, the first flame retardant layer 51, the second flame retardant layer 52 and the third flame retardant layer 53 can play the role of flame retardant, slowing down and preventing the spread of fire, thereby facilitating the improvement of the flame retardant performance of the cable, and the flame retardant effect is good.

[0036] The remaining structures are the same as those of Example 1.

[0037] The specific embodiments described above further illustrate the objectives, technical solutions and beneficial effects of the present invention in detail. It should be understood that the above description is only a specific embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A light power cable for ship, characterized in that: The invention comprises a support frame (1), wherein a main conductor (2) is arranged inside the support frame (1), wherein auxiliary conductors (3) are arranged inside the support frame (1), wherein the auxiliary conductors (3) are arranged in a circular array, wherein a wrapping tape (4) is arranged on the outer surface of the support frame (1), wherein a flame retardant structure (5) is arranged on the outer surface of the wrapping tape (4), wherein an armor layer (6) is arranged on the outer surface of the flame retardant structure (5), and wherein an outer sheath (7) is arranged on the outer surface of the armor layer (6).

2. The light-weight shipboard power cable according to claim 1, characterized in that: A sleeve groove (11) is provided inside the support frame (1), and the inner cavity of the sleeve groove (11) is sleeve-connected with the main conductor (2); The support frame (1) is provided with a fan-shaped groove (12) inside, and the secondary conductor (3) is located in the fan-shaped groove (12).

3. The light-weight shipboard power cable according to claim 2, characterized in that: The outer surface of the support frame (1) forms an arc end surface (13), and the arc end surface (13) is connected to the wrapping tape (4) by wrapping.

4. The light-weight shipboard power cable according to claim 3, characterized in that: The fan-shaped groove (12) and the wrapping tape (4) form a filling cavity, the secondary conductor (3) is located in the filling cavity, and the filling cavity is filled with powdered polytetrafluoroethylene resin.

5. The light-weight shipboard power cable according to claim 1, characterized in that: The flame retardant structure (5) comprises a first flame retardant layer (51), the first flame retardant layer (51) being arranged on the outer surface of the wrapping tape (4), the outer surface of the first flame retardant layer (51) being provided with a second flame retardant layer (52), the outer surface of the second flame retardant layer (52) being provided with a third flame retardant layer (53), and the outer surface of the third flame retardant layer (53) being connected to the armor layer (6).

6. The light-weight shipboard power cable according to claim 5, characterized in that: The first flame retardant layer (51), the second flame retardant layer (52) and the third flame retardant layer (53) are respectively a silicone rubber layer, a graphene layer and a flame retardant polyolefin layer.

7. The light-weight shipboard power cable according to claim 1, characterized in that: The wrapping tape (4) is a halogen-free tape, the armor layer (6) is woven from aluminum alloy wires, and the outer sheath (7) is made of a cross-linked polyolefin polymer material.

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