High-voltage direct-current wear-resistant insulated cable of dust filter

Abstract

The utility model relates to a high-voltage direct-current wear-resistant insulated cable of a dust filter, belongs to the technical field of high-voltage direct-current cables, and aims to solve the problem that insulation aging is accelerated due to space charge accumulation generated by an insulating material under the action of an electric field. Through the first filler layer, the second filler layer and the insulating layer, due to the first filler layer and the second filler layer, graphene can effectively reduce accumulation of space charges, and the performance and reliability of the cable are improved; the conductive performance, the antistatic performance, the electromagnetic shielding capability and the like of the insulating layer can be improved, mutual cooperation is achieved, accumulation of space charges is obviously reduced, the service life of the product is prolonged, the durable high-voltage direct-current cable is produced through appropriate production process parameters, the service life of the cable is prolonged, funds are saved for users, and the production cost is reduced. And through mutual cooperation of the reinforcing layer, the wear-resistant sleeve and the wear-resistant strips, the overall use safety of the cable is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of high-voltage direct current cables, in particular to a high-voltage direct current wear-resistant insulated cable for a dust filter. Background Art

[0002] High-voltage DC cables are a relatively new type of wire and cable for electrical equipment. They are used as connecting wires in various equipment, devices or instruments that require DC high-voltage power. They are generally not long in length and do not transmit high power. Therefore, they are different from power cables used to transmit high-power electrical energy. In recent years, there has been a great demand for DC high-voltage cables, such as in dust filters.

[0003] Generally, high-voltage DC cables are mainly made of cross-linked polyethylene insulation material. However, during the production process of cross-linked polyethylene, impurities such as the added cross-linking agent and by-products of the cross-linking process may be introduced into the insulation layer, causing the insulation material to accumulate space charge under the action of the electric field, thereby accelerating insulation aging. In order to improve this situation, it is necessary to design a high-voltage DC wear-resistant insulated cable with a dust filter to solve the above problem. Utility Model Content

[0004] The purpose of the utility model is to provide a high-voltage DC wear-resistant insulated cable for a dust filter to solve the problem in the above background technology that the insulation material generates space charge accumulation under the action of the electric field, which accelerates insulation aging.

[0005] To achieve the above-mentioned objectives, the utility model provides the following technical solutions: a high-voltage DC wear-resistant insulated cable for a dust filter, comprising a conductor, a second filler layer being provided on the outside of the conductor, and an insulating layer being provided on the outside of the second filler layer, a first filler layer being provided on the outside of the insulating layer, and a shielding layer being provided on the outside of the first filler layer, a protective component being provided on the outside of the shielding layer, the protective component comprising a reinforcing layer being provided on the outside of the shielding layer, and a wear-resistant sleeve being provided on the outside of the reinforcing layer.

[0006] Preferably, the material of the first filler layer is the same as that of the second filler layer, and the material of the first filler layer and the material of the second filler layer are graphene.

[0007] Preferably, the conductor is made of copper wire, and the conductor is formed by twisting multiple groups of copper wires.

[0008] Preferably, the insulating layer is made of cross-linked polyethylene, and a conductive polymer coating is provided on the outer side of the insulating layer.

[0009] Preferably, the shielding layer is made of conductive rubber, the reinforcement layer is woven from steel wires, and the wear-resistant sleeve is made of polyethylene.

[0010] Preferably, the outer side of the wear-resistant sleeve is provided with wear-resistant strips, and the wear-resistant strips are provided in two groups, and the wear-resistant strips are arranged in a spiral shape on the outer side of the wear-resistant sleeve.

[0011] Compared with the prior art, the technical solution provided by this utility model has the following beneficial effects:

[0012] Through the first filler layer and the second filler layer, since graphene can effectively reduce the accumulation of space charge and improve the performance and reliability of the cable, the coating material is a conductive polymer coating, which can improve the conductivity, antistatic performance, electromagnetic shielding capability, etc. of the insulation layer. By cooperating with each other, the accumulation of space charge is significantly reduced, and the product life is improved. By using appropriate production process parameters, durable high-voltage DC cables are produced, which not only extends the service life of the cable and saves money for users, but also improves the overall energy of the cable because the shielding layer is made of conductive rubber. Through the mutual cooperation of the reinforcement layer, wear-resistant sleeve and wear-resistant strip, the wear resistance of the high-voltage DC wear-resistant insulated cable of the dust filter is improved as a whole, moisture intrusion is prevented, and the overall safety of the cable is improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0014] Figure 1 This is a schematic diagram of the front cross-section structure of the present utility model;

[0015] Figure 2 This is a schematic diagram of the three-dimensional structure of the protective component of the utility model;

[0016] Figure 3 This is a schematic diagram of the three-dimensional structure of the conductor of the present utility model;

[0017] Figure 4 It is a schematic diagram of the three-dimensional structure of the utility model.

[0018] Explanation of the reference numerals in the figure: 1. Protective component; 101. Wear-resistant strip; 102. Wear-resistant sleeve; 103. Reinforcement layer; 2. Shielding layer; 3. First filler layer; 4. Insulation layer; 5. Second filler layer; 6. Conductor. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0020] In order to further understand the content of the present invention, the present invention is described in detail with reference to the accompanying drawings.

[0021] Combine Figure 1 、 Figure 2 、 Figure 3 and Figure 4 The utility model provides a high-voltage DC wear-resistant insulated cable with a dust filter, comprising a conductor 6, a second filler layer 5 being provided on the outside of the conductor 6, an insulating layer 4 being provided on the outside of the second filler layer 5, a first filler layer 3 being provided on the outside of the insulating layer 4, a shielding layer 2 being provided on the outside of the first filler layer 3, a protective component 1 being provided on the outside of the shielding layer 2, the protective component 1 comprising a reinforcing layer 103 being provided on the outside of the shielding layer 2, and a wear-resistant sleeve 102 being provided on the outside of the reinforcing layer 103.

[0022] The present invention will be further described below with reference to the embodiments.

[0023] Example 1:

[0024] Combine Figure 1 、 Figure 3 and Figure 4 The material of the first packing layer 3 is the same as that of the second packing layer 5, and the material of the first packing layer 3 and the material of the second packing layer 5 are graphene. The material of the conductor 6 is copper wire, and the conductor 6 is formed by twisting multiple groups of copper wires. The material of the insulating layer 4 is cross-linked polyethylene, and a conductive polymer coating is provided on the outside of the insulating layer 4.

[0025] In this embodiment, the first filler layer 3 and the second filler layer 5 are made of graphene, which promotes charge conduction, improves dielectric properties, reduces trap density, enhances thermal conductivity, and improves the uniformity of the material. The mutual cooperation can effectively reduce the accumulation of space charge and improve the performance and reliability of the cable. The coating material is a conductive polymer coating, which can improve the conductivity, antistatic properties, electromagnetic shielding capability, etc. of the insulating layer 4, significantly reduce the accumulation of space charge, and improve the product life. By using appropriate production process parameters, durable high-voltage DC cables can be produced, which not only extends the service life of the cable but also saves money for users.

[0026] Example 2:

[0027] Combine Figure 1 、 Figure 2 and Figure 4 The shielding layer 2 is made of conductive rubber, the reinforcement layer 103 is woven from steel wire, the wear-resistant sleeve 102 is made of polyethylene material, and the outside of the wear-resistant sleeve 102 is provided with wear-resistant strips 101. There are two groups of wear-resistant strips 101, and the wear-resistant strips 101 are spirally wound on the outside of the wear-resistant sleeve 102.

[0028] In this embodiment, the shielding layer 2 is made of conductive rubber, which can provide effective electromagnetic shielding to protect the internal conductor 6 from the influence of the external electromagnetic field, thereby improving the overall energy of the cable. Through the mutual cooperation of the reinforcement layer 103, the wear-resistant sleeve 102 and the wear-resistant strip 101, the wear resistance of the high-voltage DC wear-resistant insulated cable of the dust filter is improved as a whole, the probability of the cable being damaged by the outside world is reduced, moisture intrusion is prevented, and the overall safety of the cable is improved.

[0029] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that includes a list of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus.

[0030] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A high-voltage DC wear-resistant insulated cable for a dust filter, comprising a conductor (6), characterized in that: A second packing layer (5) is provided on the outside of the conductor (6), and an insulating layer (4) is provided on the outside of the second packing layer (5), a first packing layer (3) is provided on the outside of the insulating layer (4), and a shielding layer (2) is provided on the outside of the first packing layer (3), a protective component (1) is provided on the outside of the shielding layer (2), and the protective component (1) includes a reinforcing layer (103) provided on the outside of the shielding layer (2), and a wear-resistant sleeve (102) is provided on the outside of the reinforcing layer (103).

2. The high-voltage DC wear-resistant insulated cable for dust filter according to claim 1, characterized in that: The material of the first filler layer (3) is the same as the material of the second filler layer (5), and the material of the first filler layer (3) and the material of the second filler layer (5) are graphene.

3. The high-voltage DC wear-resistant insulated cable for dust filter according to claim 1, characterized in that: The conductor (6) is made of copper wire, and is formed by twisting a plurality of groups of copper wires.

4. The high-voltage DC wear-resistant insulated cable for dust filter according to claim 1, characterized in that: The insulating layer (4) is made of cross-linked polyethylene, and a conductive polymer coating is provided on the outer side of the insulating layer (4).

5. The high-voltage DC wear-resistant insulated cable for dust filter according to claim 1, characterized in that: The shielding layer (2) is made of conductive rubber, the reinforcement layer (103) is woven from steel wires, and the wear-resistant sleeve (102) is made of polyethylene.

6. The high-voltage direct current wear-resistant insulated cable for dust filter according to claim 1, characterized in that: The outer side of the wear-resistant sleeve (102) is provided with wear-resistant strips (101), and the wear-resistant strips (101) are provided in two groups. The wear-resistant strips (101) are spirally wound on the outer side of the wear-resistant sleeve (102).

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