Anti-aging MPP electric power pipe

Abstract

The utility model discloses an anti-aging MPP electric power pipe, and relates to the field of MPP electric power pipes, according to the anti-aging MPP electric power pipe, a plurality of inner cavities are formed in a lining layer by dividing the lining layer of a pipe body, the inner cavities are threading holes, each cable is provided with an independent cavity after threading in the use process, and the cables are not contacted with each other, so that the service life of the MPP electric power pipe is prolonged, and the service life of the MPP electric power pipe is prolonged. Therefore, the situation that the cables are stacked and heat is collected is avoided, the heat dissipation effect is improved, meanwhile, due to the fact that each cable is threaded in the corresponding independent threading hole, no hindrance of other cables exists, and the threading process is smoother; a plurality of threading holes are formed in the inner side of the lining layer in a honeycomb shape, and each threading hole is arranged in a regular hexagon shape, so that the structure of the lining layer is in a honeycomb shape, and the structural strength of the whole MPP pipeline is improved by utilizing the characteristic that the honeycomb structure is stable; by arranging the weight reducing grooves, the self weight of the whole pipeline is reduced while the structural strength of the pipeline is improved through the honeycomb structure, and use of production materials is reduced.

Description

Technical Field

[0001] The utility model relates to the field of MPP power pipes, and in particular to aging-resistant MPP power pipes. Background Art

[0002] MPP power pipes are made of modified polypropylene as the main raw material and are resistant to high temperatures and external pressures. However, as the number of applications increases, the harshness of the environments that MPP needs to adapt to also increases, and the demand for its pressure resistance also increases significantly.

[0003] The existing technology increases the anti-aging performance of the MPP pipe by setting a protective layer or a wear-resistant layer on the outside of the MPP pipe. Some technologies also improve the structure of the MPP pipe, such as adding axial ridges on the outer wall of the pipe, thereby improving the pipe's anti-bending performance and improving the pipe strength. However, compared with the traditional circular outer wall, the formation of ridges increases the difficulty of pipe layout and the pulling resistance of the pipe increases. In addition, the existing MPP pipe only changes the shape of the outer side and innovates the strength, but the shape of the inner side is often not effectively improved. In actual use, multiple cables will be threaded in an MPP power pipe. Due to the limitations of the circular pipe, multiple cables will inevitably accumulate under the pipe under the action of gravity, so that multiple cables are tightly stacked together, which increases heat accumulation and reduces the heat dissipation effect. In addition, multiple cables threaded in a cavity are prone to obstruction. Utility Model Content

[0004] In order to make up for the deficiencies of the existing technical problems, the purpose of the present invention is to provide an aging-resistant MPP power pipe that can reduce cable accumulation after threading and improve heat dissipation effect.

[0005] In order to solve the problems of the prior art, the technical solutions of the present utility model are as follows:

[0006] The aging-resistant MPP power pipe includes a pipe body consisting of an inner lining layer, a fireproof layer and a wear-resistant layer. The inner lining layer is located on the innermost side of the pipe body, the fireproof layer is wrapped around the outer periphery of the inner lining layer, and the wear-resistant layer is wrapped around the outer periphery of the fireproof layer. A plurality of threading holes are formed in the middle of the inner lining layer, and the length direction of the threading holes is parallel to the length direction of the pipe body.

[0007] Preferably, the plurality of threading holes are distributed on the lining layer at equal intervals.

[0008] Preferably, the cross-section of the threading holes is a regular hexagon, and a plurality of the threading holes are honeycomb-shaped on the cross-section of the fireproof layer.

[0009] Preferably, one of the threading holes is located at the exact center of the inner lining layer, and the remaining threading holes are arranged in a circular array on the outer ring portion of the inner lining layer.

[0010] Preferably, a plurality of weight-reducing grooves are provided on the inner lining layer at equal angular intervals, and each weight-reducing groove is located between two adjacent threading holes on the outer ring portion of the inner lining layer.

[0011] Preferably, the number of the threading holes is 7, and the number of the weight-reducing grooves is 6.

[0012] Compared with the related art, the present invention has the following beneficial effects:

[0013] 1. By dividing the inner lining of the tube, the inner lining forms multiple inner cavities, which are also threading holes. After threading the cables during use, each cable has an independent chamber and the cables do not touch each other. This avoids the accumulation of heat from the cables and improves the heat dissipation effect. At the same time, since each cable is threaded in an independent threading hole, there is no obstruction from other cables, and the threading process is smoother.

[0014] 2. By arranging multiple threading holes in a honeycomb shape on the inner side of the lining layer, each threading hole is arranged in a regular hexagonal shape, so that the lining layer structure is honeycomb-shaped, taking advantage of the stable characteristics of the honeycomb structure and improving the structural strength of the entire MPP pipeline;

[0015] 3. By arranging weight-reducing grooves, the honeycomb structure is used to improve the structural strength of the pipeline while reducing the weight of the entire pipeline and reducing the use of production materials. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall structure of the utility model.

[0017] Figure 2 This is a schematic diagram of the threading hole structure of the present utility model.

[0018] Figure 3 This is a structural diagram of embodiment 2 of the present utility model.

[0019] Reference numerals: 1. pipe body; 101. inner lining layer; 102. fireproof layer; 103. wear-resistant layer; 2. threading hole; 3. weight-reducing groove. DETAILED DESCRIPTION

[0020] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0021] For example 1, please refer to Figures 1 to 2The present embodiment provides an aging-resistant MPP power pipe, comprising a pipe body 1 consisting of an inner lining layer 101, a fireproof layer 102 and a wear-resistant layer 103. The inner lining layer 101 is located on the innermost side of the pipe body 1, the fireproof layer 102 is wrapped around the outer periphery of the inner lining layer 101, and the wear-resistant layer 103 is wrapped around the outer periphery of the fireproof layer 102. Seven threading holes 2 are formed in the middle of the inner lining layer 101, and the length direction of the threading holes 2 is parallel to the length direction of the pipe body 1. The seven threading holes 2 are distributed on the inner lining layer 101 at equal intervals, one threading hole 2 is located at the center of the inner lining layer 101, and the remaining threading holes 2 are arranged in a ring array on the outer ring part of the inner lining layer 101. The cross-section of the threading holes 2 is a regular hexagon, and the seven threading holes 2 are honeycomb-shaped on the cross-section of the fireproof layer 102.

[0022] The fireproof layer 102 and the wear-resistant layer 103 are both provided in the prior art. The fireproof layer 102 improves the fireproof and high temperature resistance performance, and the wear-resistant layer 103 improves the wear resistance and anti-aging performance of the pipe body 1.

[0023] The present application arranges seven wire threading holes 2 in a honeycomb pattern at equal intervals on the inner lining layer 101, so that each cable has an independent threading space. Therefore, the cables will not be piled up after being threaded. In this way, the heat generated by the cables due to power transmission will not be concentrated, and each cable can effectively dissipate heat. At the same time, due to the independent threading channel, each cable will not be affected by the other cables during threading, and the threading work can be carried out more smoothly.

[0024] Due to the honeycomb structure, the structural strength of the entire tube body 1 is improved, and the bending resistance and impact resistance of the tube body 1 are improved.

[0025] For example 2, please refer to Figure 3 This embodiment provides a further technical solution based on the first embodiment. Six weight-reducing grooves 3 are provided at equal angular intervals on the inner lining layer 101, and each weight-reducing groove 3 is located between two adjacent threading holes 2 on the outer ring portion of the inner lining layer 101. Due to the arrangement of the seven threading holes 2, there will be a certain useless area between each two adjacent threading holes 2 in the six threading holes 2 on the outermost periphery. If the weight-reducing groove 3 is not provided at this position, the weight of the entire pipe body 1 will be greatly increased. The provision of the weight-reducing groove 3 enables the outer periphery of the entire pipe body 1 to remain circular, and the middle part of the pipe body 1 to remain honeycomb-shaped, while reducing its own weight and saving production materials.

[0026] 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. An aging-resistant MPP electric power pipe, comprising a pipe body (1) consisting of an inner lining layer (101), a fireproof layer (102) and a wear-resistant layer (103), wherein the inner lining layer (101) is located at the innermost side of the pipe body (1), the fireproof layer (102) is wrapped around the outer periphery of the inner lining layer (101), and the wear-resistant layer (103) is wrapped around the outer periphery of the fireproof layer (102), characterized in that: A plurality of threading holes (2) are formed in the middle of the inner lining layer (101), the length direction of the threading holes (2) is parallel to the length direction of the tube body (1), and the plurality of threading holes (2) are distributed on the inner lining layer (101) at equal intervals. The cross section of the threading holes (2) is a regular hexagonal arrangement, and the plurality of threading holes (2) are honeycomb-shaped on the cross section of the fireproof layer (102). One threading hole (2) is located at the center of the inner lining layer (101), and the remaining threading holes (2) are arranged in a circular array on the outer ring portion of the inner lining layer (101). The inner lining layer (101) is provided with a plurality of weight-reducing grooves (3) at equal angular intervals, and each weight-reducing groove (3) is located between two adjacent threading holes (2) on the outer ring portion of the inner lining layer (101).

2. The aging-resistant MPP electric power pipe according to claim 1, characterized in that: The number of the threading holes (2) is 7, and the number of the weight-reducing grooves (3) is 6.

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