High-strength MPP power cable protection pipe

Abstract

The utility model relates to a high-strength MPP power cable protection pipe, which belongs to the technical field of composite pipes and comprises a protection pipe body, a heat dissipation structure is arranged in the protection pipe body, and a conductive structure is arranged in the protection pipe body. The heat dissipation structure comprises an inner wall heat dissipation layer fixedly connected to the protection tube body and an inner wall heat insulation layer fixedly connected to the heat dissipation layer. The conductive structure comprises an inner wall conductive layer fixedly connected to the heat insulation layer, an inner wall polygonal cross section frame fixedly connected to the conductive layer, and a plurality of conductive filler blocks embedded in the polygonal cross section frame. According to the high-strength MPP power cable protection pipe, the convex blocks on the outer side of the polygonal-section frame are filled with the heat stabilizer, and the heat dissipation holes formed in the heat insulation layer are matched, so that the heat stability of the MPP pipe is remarkably improved, heat dissipation in the pipe can be accelerated, and the temperature in the pipe can be reduced.

Description

Technical Field

[0001] This utility model relates to the field of composite pipe technology, specifically a high-strength MPP power cable protection pipe. Background Technology

[0002] With the growth of my country's electricity demand, the power industry has developed rapidly. Correspondingly, the demand for supporting and practical power pipelines has also increased day by day. MPP power pipes use modified polypropylene as the main raw material. When used, there is no need to dig a lot of mud, dig soil and damage the road surface. They are used in special sections such as roads, railways, buildings, and riverbeds for laying pipelines and cables.

[0003] A search revealed that the prior art, under publication number CN208782395U, discloses an MPP power cable protection pipe, comprising an outer tube body with a corrugated protrusion structure on the outer surface. The inner cavity of the outer tube body contains an integrated inner core arranged in a plum blossom pattern. The integrated inner core is divided into multiple cavities for holding electrical cables by partitions. A fireproof layer and a metal mesh layer are sequentially provided between the outer tube body and the integrated inner core. A moisture-venting hole is provided on the lower side of the outer tube body. This utility model can simultaneously accommodate multiple types of electrical cables and optical fibers, and can prevent concentrated discharge and water accumulation, ensuring the normal use of the cables.

[0004] However, the driving current of the MPP power tube of this utility model is relatively large, which will generate certain power loss during the switching process. At the same time, the on-resistance of the MPP power tube changes with temperature, which may affect its performance and reliability. Therefore, a high-strength MPP power cable protection tube is proposed to solve the problems mentioned above. Utility Model Content

[0005] To address the shortcomings of existing technologies, this utility model provides a high-strength MPP power cable protection pipe, which has advantages such as slowing down the aging and degradation rate of materials and improving the conductivity of materials. It solves the problems of relatively large driving current of MPP power pipes, which will generate certain power loss during switching, and the on-resistance of MPP power pipes changing with temperature, which may affect their performance and reliability.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a high-strength MPP power cable protection pipe, comprising a protection pipe body, wherein a heat dissipation structure is provided inside the protection pipe body, and a conductive structure is provided inside the protection pipe body;

[0007] The heat dissipation structure includes a heat dissipation layer fixedly connected to the inner wall of the protective tube body and a heat insulation layer fixedly connected to the inner wall of the heat dissipation layer.

[0008] The conductive structure includes an inner conductive layer fixedly connected to the heat insulation layer, a polygonal cross-section frame fixedly connected to the inner wall of the conductive layer, and multiple conductive filler blocks embedded inside the polygonal cross-section frame.

[0009] Furthermore, the inner wall of the conductive layer is fixedly connected with multiple fixing strips, and the fixing strips are filled with inorganic fillers.

[0010] Furthermore, the heat insulation layer has multiple heat dissipation holes inside, and the multiple heat dissipation holes are arranged at equal intervals.

[0011] Furthermore, the surface of the polygonal cross-section frame is fixedly connected with multiple sets of protrusions, and the multiple sets of protrusions are arranged in groups of three.

[0012] Furthermore, the bump is filled with a heat stabilizer, and the conductive filler block is filled with conductive filler.

[0013] Furthermore, the heat dissipation holes penetrate the heat insulation layer and extend to its exterior, and the conductive filler block has a polygonal structure.

[0014] Furthermore, the surface of the conductive layer is coated with a modified polypropylene coating.

[0015] Compared with the prior art, this utility model provides a high-strength MPP power cable protection pipe, which has the following beneficial effects:

[0016] 1. This high-strength MPP power cable protection pipe, through the filling of heat stabilizer in the protrusions on the outside of the polygonal cross-section frame, combined with the heat dissipation holes opened in the insulation layer, significantly improves the thermal stability of the MPP pipe, can accelerate the heat dissipation inside the pipe, and reduce the temperature inside the pipe.

[0017] 2. This high-strength MPP power cable protection pipe uses conductive filler blocks to help reduce current transmission loss in the pipe, thereby reducing power consumption. The conductive layer reduces energy loss during current transmission. This solves the problems of relatively large drive current in MPP power pipes, which can cause power consumption loss during switching. At the same time, the on-resistance of MPP power pipes changes with temperature, which may affect their performance and reliability. Attached Figure Description

[0018] Figure 1 This is a cross-sectional view of the structure of this utility model;

[0019] Figure 2 This is a three-dimensional structural view of the polygonal cross-section frame of this utility model;

[0020] Figure 3 This utility model Figure 1 Enlarged view of the structure shown at point A in the middle.

[0021] In the diagram: 1. Protective tube body, 2. Heat dissipation layer, 3. Heat insulation layer, 4. Conductive layer, 5. Polygonal cross-section frame, 6. Conductive filler block, 7. Protrusion, 8. Fixing strip. Detailed Implementation

[0022] 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.

[0023] Please see Figures 1 to 3 This embodiment of a high-strength MPP power cable protection pipe includes a protection pipe body 1, with a heat dissipation structure and a conductive structure disposed inside the protection pipe body 1. The heat dissipation structure includes a heat dissipation layer 2 fixedly connected to the inner wall of the protection pipe body 1 and a heat insulation layer 3 fixedly connected to the inner wall of the heat dissipation layer 2. The conductive structure includes a conductive layer 4 fixedly connected to the inner wall of the heat insulation layer 3, a polygonal cross-section frame 5 fixedly connected to the inner wall of the conductive layer 4, and multiple conductive filler blocks 6 embedded inside the polygonal cross-section frame 5.

[0024] The conductive layer 4 has multiple fixing strips 8 fixedly connected to its inner wall, and the fixing strips 8 are filled with inorganic fillers. The heat insulation layer 3 has multiple heat dissipation holes arranged at equal intervals. The surface of the polygonal cross-section frame 5 has multiple sets of protrusions 7 fixedly connected, with the protrusions 7 arranged in groups of three. The protrusions 7 are filled with heat stabilizers. The conductive filler block 6 is filled with conductive fillers. The heat dissipation holes penetrate the heat insulation layer 3 and extend to its exterior. The conductive filler block 6 has a polygonal structure. The surface of the conductive layer 4 is coated with a modified polypropylene coating.

[0025] It should be noted that the insulation layer 3 can reduce the impact of external temperature on the inside of the pipe, thereby reducing the impact of temperature fluctuations on pipe performance. The insulation layer material can be selected from materials with good insulation performance, such as rock wool and glass wool. The heat dissipation layer 2 adds heat dissipation structures, such as heat sinks and heat dissipation holes, which can accelerate the dissipation of heat inside the pipe, reduce the internal temperature of the pipe, help reduce the sensitivity of MPP power pipe to high-temperature environments, and improve its service life. The conductive filler block 6 is filled with an appropriate amount of conductive filler, such as carbon black, graphite or metal powder, which can improve the conductivity of the material. The addition of conductive filler helps to reduce the transmission loss of current in the pipe, thereby reducing power consumption. The conductive layer 4 can be selected as an additive or coating of MPP power pipe with low resistivity, which can reduce the resistance of the pipe and reduce the energy loss during current transmission. The fixing strip 8 adds an appropriate amount of inorganic filler, such as wollastonite and calcium carbonate, which can improve the thermal conductivity and heat resistance of the material. The addition of inorganic filler can also reduce the cost of the material and improve the cost performance.

[0026] The working principle of the above embodiments is as follows:

[0027] MPP power pipes and cables pass sequentially through the polygonal cross-section frame 5, and multiple power pipes are aligned and protected by the polygonal cross-section frame 5. The heat insulation layer 3 isolates the external temperature during use, preventing it from entering the protective pipe body 1 and affecting the pipe. At the same time, the heat dissipation holes, together with the heat dissipation layer 2, can quickly dissipate the heat generated by the power pipes and reduce the temperature inside the pipe. The polygonal cross-section frame 5 can more effectively disperse the current, reduce resistance and power loss. Combined with the conductive filler block 6, it can improve the conductivity of the material, thereby reducing power loss. The heat stabilizer added in the protrusion 7 can significantly improve the thermal stability of the MPP pipe, making it less prone to performance changes at high temperatures, thereby slowing down the aging and degradation rate of the material.

[0028] The installation, connection, or setting methods disclosed in this embodiment are all common mechanical connection methods, and any method that can achieve its beneficial effects can be implemented.

[0029] 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.

[0030] Although 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 alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A high-strength MPP power cable protection pipe, characterized in that: It includes a protective tube body (1), the interior of which is provided with a heat dissipation structure and a conductive structure; The heat dissipation structure includes an inner wall heat dissipation layer (2) fixedly connected to the protective tube body (1) and an inner wall heat insulation layer (3) fixedly connected to the heat dissipation layer (2); The conductive structure includes an inner wall conductive layer (4) fixedly connected to the heat insulation layer (3), an inner wall polygonal cross-section frame (5) fixedly connected to the conductive layer (4), and multiple conductive filler blocks (6) embedded inside the polygonal cross-section frame (5).

2. The high-strength MPP power cable protection pipe according to claim 1, characterized in that: The inner wall of the conductive layer (4) is fixedly connected with a plurality of fixing strips (8), and the fixing strips (8) are filled with inorganic fillers.

3. The high-strength MPP power cable protection pipe according to claim 1, characterized in that: The heat insulation layer (3) has multiple heat dissipation holes inside, and the multiple heat dissipation holes are arranged at equal intervals.

4. The high-strength MPP power cable protection pipe according to claim 1, characterized in that: The surface of the polygonal cross-section frame (5) is fixedly connected with multiple sets of protrusions (7), and the multiple sets of protrusions (7) are in groups of three.

5. A high-strength MPP power cable protection pipe according to claim 4, characterized in that: The bump (7) is filled with a heat stabilizer, and the conductive filler block (6) is filled with conductive filler.

6. A high-strength MPP power cable protection pipe according to claim 3, characterized in that: The heat dissipation holes penetrate the heat insulation layer (3) and extend to its exterior, and the conductive filler block (6) has a polygonal structure.

7. A high-strength MPP power cable protection pipe according to claim 1, characterized in that: The surface of the conductive layer (4) is coated with a modified polypropylene coating.

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