An electrical conduit

Abstract

The utility model relates to the technical field of electrical engineering, and disclose a kind of electric power pipeline;High-temperature insulating coating, coating in main pipeline inner wall, to reduce the aging of insulating material caused by temperature rise;Elastic support structure, installed in main pipeline outer wall, for providing deformation resistance protection in frequent geological activity area;Mechanical joint is used for the connection of cable, is fixed by mechanical pressure joint mode, avoid the electrochemical corrosion problem of traditional metal joint;Thermal insulation layer is located between main pipeline inner wall and high-temperature insulating coating, for further improving heat insulation effect, prevent high temperature conduction to cable.The electric power pipeline, can solve the temperature sensitivity of insulating material inside electric power pipeline, easily aging in high-temperature environment, leading to the problem of insulation performance decline, can solve the problem that underground electric power pipeline and surrounding soil physical property do not match, easily cause pipeline deformation or fracture in frequent geological activity area, leading to cable damage.

Description

Technical Field

[0001] This utility model relates to the field of electrical engineering technology, specifically to a power pipeline. Background Technology

[0002] A power pipeline is a specialized conduit used for laying and protecting underground power transmission cables. These pipelines play a crucial role in power transmission, ensuring the safe and reliable transmission of electricity. However, power pipelines face several challenges in practical applications: First, the internal insulation material is temperature-sensitive and prone to aging in high-temperature environments, leading to a gradual decline in insulation performance. Second, the physical properties of the power pipeline are incompatible with the surrounding soil, making it susceptible to deformation or breakage in areas with frequent geological activity, resulting in cable damage. Furthermore, the cable connections within the pipeline typically use traditional metal joints, which may be subject to electrochemical corrosion over long-term operation, leading to poor contact, increased resistance, or even localized overheating, further threatening the safe operation of the power system. Utility Model Content

[0003] The purpose of this utility model is to provide an electric conduit to solve the problems mentioned in the background art.

[0004] To achieve the above objectives, this utility model provides the following technical solution: an electrical conduit, comprising:

[0005] The main conduit is used to house the cables;

[0006] A high-temperature insulating coating is applied to the inner wall of the main pipeline to reduce the aging of the insulation material caused by temperature rise.

[0007] A flexible support structure is installed on the outer wall of the main pipeline to provide deformation-resistant protection in areas with frequent geological activity.

[0008] Mechanical connectors are used for cable connections. They are fixed by mechanical crimping, avoiding the electrochemical corrosion problems of traditional metal connectors.

[0009] The heat insulation layer, located between the inner wall of the main pipe and the high-temperature insulating coating, is used to further improve the heat insulation effect and prevent high temperature from being conducted to the cable.

[0010] The high-temperature insulating coating is made of a material with high temperature resistance and low coefficient of thermal expansion, which can remain stable in high-temperature environments and prevent the insulation material from aging. The elastic support structure is made of a highly elastic material, which can resist external pressure and deformation in areas with frequent geological activity and prevent pipeline damage. The mechanical joint is made of an alloy material with good corrosion resistance and conductivity to ensure stable connection during long-term operation and avoid poor contact and local overheating caused by electrochemical corrosion.

[0011] Preferably, the thickness of the high-temperature insulating coating is 0mm to 2.0mm, and nano-alumina is used as the main component to enhance its high-temperature stability and effectively reduce the decrease in insulation performance caused by temperature changes.

[0012] Preferably, the heat insulation layer adopts a multi-layer structure design, including at least two alternating layers of graphene sheets and a silica microporous foam layer. The graphene sheets have excellent thermal conductivity and shielding effect, and the silica microporous foam layer has good heat insulation effect, so as to minimize the impact of high temperature on the cable.

[0013] Preferably, a graphene film with a thickness of 1 mm is disposed between the high-temperature insulating coating and the heat insulation layer, which can further improve the overall thermal resistance and conductivity, prevent heat conduction to the cable, and ensure electrical insulation performance.

[0014] Preferably, the elastic support structure is provided with multiple annular reinforcing ribs spaced apart along the axial direction of the main pipeline. The annular reinforcing ribs are made of high-strength stainless steel, which can provide better deformation protection during frequent geological activities such as earthquakes and prevent the pipeline from being damaged by external pressure.

[0015] Preferably, the outer surface of the elastic support structure is coated with an anti-corrosion and corrosion-resistant layer. This anti-corrosion and corrosion-resistant layer is made of polytetrafluoroethylene material, which can effectively resist chemical corrosion in the soil and extend the service life of the power pipeline.

[0016] Preferably, the mechanical connector includes a metal connecting sleeve with a conductive tape embedded inside. The conductive tape is made of a polymer composite material with self-healing function, which can ensure the stability of the cable connection and avoid poor contact caused by vibration and other factors.

[0017] Preferably, the mechanical connector further includes a protective cover, which is fitted over the outside of the metal connecting sleeve and is made of polyethylene material. This effectively prevents moisture from entering the connector and prevents electrochemical corrosion.

[0018] Preferably, the thickness of the insulation layer is a multiple of the main pipe wall thickness, ensuring a highly efficient thermal insulation effect and further protecting the cable from the effects of high-temperature environments.

[0019] Preferably, the high-temperature insulating coating is applied by spraying to form a uniform and dense film. Before spraying, the inner wall of the main pipeline needs to be surface treated to remove oil and impurities to ensure the adhesion and stability of the coating.

[0020] Preferably, the elastic support structure further includes multiple fixing points, which are evenly distributed on the outer circumference of the elastic support structure and fixed to the foundation by bolts, thereby enhancing the overall stability and seismic performance of the pipeline.

[0021] Preferably, the mechanical connector further includes a pressure monitoring device installed inside the metal connecting sleeve, which can monitor the pressure status of the cable connection point in real time, provide timely warnings of potential faults, and ensure the safe operation of the power system.

[0022] Compared with the prior art, the present invention provides a power conduit with the following advantages:

[0023] 1. This power pipeline can solve the problem that the insulation material inside the power pipeline is prone to aging in high-temperature environments due to its temperature sensitivity, which leads to a decline in insulation performance.

[0024] 2. This power pipeline can solve the problem that the physical properties of underground power pipelines are incompatible with those of the surrounding soil, which can easily cause pipeline deformation or breakage in areas with frequent geological activity, resulting in cable damage.

[0025] 3. This power conduit can solve the problem that the cable connection points in the power conduit use traditional metal joints, which may become poorly contacted due to electrochemical corrosion during long-term operation, leading to increased resistance and localized overheating. Attached Figure Description

[0026] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0027] Figure 1 This is a front view of the structure of this utility model;

[0028] Figure 2 This is a right view of the structure of this utility model;

[0029] Figure 3 This is a schematic diagram of the structure at the annular reinforcing rib.

[0030] Figure 4 A schematic diagram of the main pipeline structure.

[0031] In the diagram: 1. Main pipeline; 2. High-temperature insulating coating; 3. Elastic support structure; 4. Mechanical joint; 5. Heat insulation layer; 6. Graphene sheet; 7. Silica microporous foam layer; 8. Graphene membrane; 9. Annular reinforcing rib; 10. Corrosion-resistant layer; 11. Metal connecting sleeve; 12. Conductive tape; 13. Protective cover; 14. Fixing point; 15. Pressure monitoring device. Detailed Implementation

[0032] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0033] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0034] This utility model provides the following technical solution:

[0035] Example 1

[0036] Combination Figures 1 to 4 An electrical conduit, comprising:

[0037] Main conduit 1, used to accommodate cables;

[0038] High-temperature insulating coating 2 is applied to the inner wall of the main pipe 1 to reduce the aging of the insulating material caused by temperature rise;

[0039] The elastic support structure 3 is installed on the outer wall of the main pipeline 1 to provide deformation-resistant protection in areas with frequent geological activity.

[0040] Mechanical connector 4 is used for cable connection. It is fixed by mechanical crimping, avoiding the electrochemical corrosion problem of traditional metal connectors.

[0041] The heat insulation layer 5 is located between the inner wall of the main pipe 1 and the high-temperature insulating coating 2, and is used to further improve the heat insulation effect and prevent high temperature from being conducted to the cable;

[0042] The high-temperature insulating coating 2 is made of a material with high temperature resistance and low thermal expansion coefficient, which can remain stable in high-temperature environments and prevent the insulation material from aging; the elastic support structure 3 is made of a highly elastic material, which can resist external pressure and deformation in areas with frequent geological activity and prevent pipeline damage; the mechanical joint 4 is made of an alloy material with good corrosion resistance and conductivity to ensure stable connection during long-term operation and avoid poor contact and local overheating caused by electrochemical corrosion.

[0043] Furthermore, the high-temperature insulating coating 2 has a thickness of 0 mm to 2.0 mm and uses nano-alumina as the main component to enhance its high-temperature stability and effectively reduce the decrease in insulation performance caused by temperature changes.

[0044] Furthermore, the heat insulation layer 5 adopts a multi-layer structure design, including at least two alternating layers of graphene sheets 6 and silica microporous foam layer 7. The graphene sheets 6 have excellent thermal conductivity and shielding effect, and the silica microporous foam layer 7 has good heat insulation effect, so as to minimize the impact of high temperature on the cable.

[0045] Furthermore, a graphene film 8 with a thickness of 1 mm is disposed between the high-temperature insulating coating 2 and the heat insulation layer 5, which can further improve the overall thermal resistance and conductivity, prevent heat from being conducted to the cable, and ensure electrical insulation performance.

[0046] Furthermore, the elastic support structure 3 is provided with multiple annular reinforcing ribs 9 at intervals along the axial direction of the main pipeline 1. The annular reinforcing ribs 9 are made of high-strength stainless steel, which can provide better deformation protection in frequent geological activities such as earthquakes and prevent the pipeline from being damaged by external pressure.

[0047] Furthermore, the outer surface of the elastic support structure 3 is coated with an anti-corrosion and corrosion-resistant layer 10. This anti-corrosion and corrosion-resistant layer 10 is made of polytetrafluoroethylene material, which can effectively resist chemical corrosion in the soil and extend the service life of the power pipeline.

[0048] Furthermore, the mechanical connector 4 includes a metal connecting sleeve 11, in which a conductive tape 12 is embedded. The conductive tape 12 is made of a polymer composite material with self-healing function, which can ensure the stability of the cable connection and avoid poor contact caused by factors such as vibration.

[0049] Furthermore, the mechanical connector 4 also includes a protective cover 13, which is fitted onto the outside of the metal connecting sleeve 11 and is made of polyethylene material. This effectively prevents moisture from entering the connector and prevents electrochemical corrosion.

[0050] Furthermore, the thickness of the insulation layer 5 is 5 times the wall thickness of the main pipe 1, ensuring a highly efficient thermal insulation effect and further protecting the cable from the effects of high-temperature environments.

[0051] Furthermore, the high-temperature insulating coating 2 is applied using a spraying process to form a uniform and dense film. Before spraying, the inner wall of the main pipe 1 needs to undergo surface treatment to remove oil and impurities, ensuring the adhesion and stability of the coating.

[0052] Furthermore, the elastic support structure 3 also includes multiple fixing points 14, which are evenly distributed on the outer circumferential surface of the elastic support structure 3 and fixed to the foundation by bolts, thereby enhancing the overall stability and seismic performance of the pipeline.

[0053] Furthermore, the mechanical connector 4 also includes a pressure monitoring device 15, which is installed inside the metal connecting sleeve 11. The pressure monitoring device 15 can monitor the pressure status of the cable connection point in real time, provide timely warnings of potential faults, and ensure the safe operation of the power system.

[0054] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

Claims

1. A power conduit, characterized in that, include: Main conduit (1), used to accommodate cables; High-temperature insulating coating (2) is applied to the inner wall of the main pipe (1) to reduce the aging of the insulating material caused by temperature rise; The elastic support structure (3) is installed on the outer wall of the main pipeline (1) to provide deformation protection in areas with frequent geological activity; Mechanical connector (4) is used for cable connection. It is fixed by mechanical crimping, avoiding the electrochemical corrosion problem of traditional metal connectors. The heat insulation layer (5) is located between the inner wall of the main pipe (1) and the high-temperature insulating coating (2) to further improve the heat insulation effect and prevent high temperature from being conducted to the cable; The high-temperature insulating coating (2) is made of a material with high temperature resistance and low thermal expansion coefficient, which can remain stable in high-temperature environments and prevent the insulation material from aging; the elastic support structure (3) is made of a highly elastic material, which can resist external pressure and deformation in areas with frequent geological activity and prevent pipeline damage; the mechanical joint (4) is made of an alloy material with good corrosion resistance and conductivity, which ensures stable connection during long-term operation and avoids poor contact and local overheating caused by electrochemical corrosion.

2. The power pipeline according to claim 1, characterized in that: The thickness of the high-temperature insulating coating (2) is 0 mm to 2.0 mm.

3. The power pipeline according to claim 1, characterized in that: The heat insulation layer (5) adopts a multi-layer structure design, including at least two alternating layers of graphene sheets (6) and silica microporous foam layer (7). The graphene sheets (6) have excellent thermal conductivity and shielding effect, and the silica microporous foam layer (7) has good heat insulation effect.

4. A power pipeline according to claim 1, characterized in that: A graphene film (8) with a thickness of 1 mm is disposed between the high-temperature insulating coating (2) and the heat insulation layer (5).

5. A power pipeline according to claim 1, characterized in that: The elastic support structure (3) is provided with multiple annular reinforcing ribs (9) at intervals along the axial direction of the main pipeline (1). The annular reinforcing ribs (9) are made of high-strength stainless steel. The elastic support structure (3) also includes multiple fixing points (14), which are evenly distributed on the outer circumferential surface of the elastic support structure (3).

6. A power pipeline according to claim 1, characterized in that: The outer surface of the elastic support structure (3) is coated with a layer of anti-corrosion and corrosion-resistant layer (10), which is made of polytetrafluoroethylene material.

7. A power pipeline according to claim 1, characterized in that: The mechanical connector (4) includes a metal connecting sleeve (11) with a conductive tape (12) embedded inside. The conductive tape (12) is made of a polymer composite material with self-healing function. The mechanical connector (4) also includes a protective cover (13) which is fitted on the outside of the metal connecting sleeve (11) and is made of polyethylene material. The mechanical connector (4) also includes a pressure monitoring device (15) which is installed on the inside of the metal connecting sleeve (11).

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