Biaxial orientation polyvinyl chloride pipe for electric power

Abstract

The utility model relates to the technical field of pipes, in particular to a biaxial orientation polyvinyl chloride pipe for electric power. According to the technical scheme, the biaxial orientation polyvinyl chloride pipe comprises a biaxial orientation polyvinyl chloride pipe body and a triangular inner pipe, the triangular inner pipe is arranged in the biaxial orientation polyvinyl chloride pipe body, and a plurality of through holes are evenly formed in the outer surface of the triangular inner pipe. The cable can be effectively prevented from being soaked in water when water is accumulated in the biaxial orientation polyvinyl chloride pipe, the outer layer of the cable is prevented from being corroded, the service life of the cable is prolonged, safety accidents are prevented, meanwhile, the cable can be placed in the pipe conveniently, follow-up cable searching, overhauling and replacing are facilitated, and the service life of the cable is prolonged. And the strength of the pipe can be further improved.

Description

Technical Field

[0001] This utility model relates to the field of pipe technology, specifically to a biaxially oriented polyvinyl chloride pipe for power applications. Background Technology

[0002] Biaxially oriented polyvinyl chloride (PVC-O) pipes are a new type of pipe manufactured through a special orientation process. This process involves axially and radially stretching PVC-U pipes produced by extrusion, causing the long-chain PVC molecules in the pipe to align regularly in both directions. This results in high strength, high toughness, high impact resistance, and fatigue resistance. This manufacturing process for PVC-O pipes not only significantly improves the overall performance of the pipes, such as strength, toughness, impact resistance, fatigue resistance, and low-temperature resistance, but also reduces raw material consumption, lowers costs, and reduces construction and installation costs. Therefore, PVC-O pipes have significant advantages over traditional PVC-U pipes in terms of both performance and cost.

[0003] Currently, in the use of biaxially oriented PVC pipes in power engineering, cables are usually piled up at the bottom of the pipe. Once water accumulates inside the pipe, the cables will be submerged in water for a long time, which can easily lead to corrosion of the outer layer of the cable, reduce the service life of the cable, and also increase the risk of safety accidents. In addition, the cables are piled up haphazardly at the bottom of the pipe, which is not conducive to later retrieval, repair and replacement. Therefore, we propose a biaxially oriented PVC pipe for power applications. Utility Model Content

[0004] The purpose of this utility model is to provide a biaxially oriented polyvinyl chloride (PVC) pipe for power applications. This pipe effectively prevents cables from being submerged in water when water accumulates inside, thus preventing corrosion of the cable's outer layer, extending cable lifespan, and preventing safety accidents. It also facilitates cable placement inside the pipe, making subsequent cable location, maintenance, and replacement easier. Furthermore, it improves the strength of the pipe. This invention solves the current problem in power engineering applications where cables are typically piled at the bottom of the pipe. If water accumulates inside the pipe, the cables are constantly submerged, leading to corrosion of the cable's outer layer, reduced lifespan, and increased risk of accidents. Additionally, the haphazard accumulation of cables at the bottom of the pipe hinders later location, maintenance, and replacement.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a biaxially oriented polyvinyl chloride (PVC) pipe for power applications, comprising a biaxially oriented PVC pipe body and a triangular inner tube, wherein the triangular inner tube is disposed inside the biaxially oriented PVC pipe body, and a plurality of through holes are uniformly disposed on the outer surface of the triangular inner tube.

[0006] Preferably, straight reinforcing ribs are provided at the three corners of the biaxially oriented PVC pipe body near the triangular inner tube on the inner wall of the main body. The straight reinforcing ribs can improve the strength of the biaxially oriented PVC pipe body itself.

[0007] Preferably, the outer surface of the triangular inner tube is provided with straight grooves at the three corner positions, and the three straight reinforcing ribs are respectively engaged in the three straight grooves. The triangular inner tube is then engaged in the biaxially oriented polyvinyl chloride pipe body through the straight reinforcing ribs and straight grooves, which facilitates the assembly of the triangular inner tube.

[0008] Preferably, the outer surface of the biaxially oriented PVC pipe body is provided with a wear-resistant coating. The wear-resistant coating can improve the wear resistance of the outer surface of the biaxially oriented PVC pipe body, thereby extending the service life of the biaxially oriented PVC pipe body.

[0009] Preferably, the inner wall of the biaxially oriented PVC pipe body and the inner and outer walls of the triangular inner tube are both provided with a fire-retardant coating. When a fire occurs inside the biaxially oriented PVC pipe body, the fire-retardant coating can slow down the fire and delay its spread.

[0010] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0011] 1. This utility model, by setting up a biaxially oriented PVC pipe body, a triangular inner tube, and a through hole, effectively prevents cables from being immersed in water when water accumulates inside the biaxially oriented PVC pipe, avoids corrosion of the cable's outer layer, extends the cable's service life, and prevents safety accidents. It also facilitates cable placement inside the pipe, making subsequent cable retrieval, maintenance, and replacement easier, and further improves the strength of the pipe. The triangular inner tube divides the inside of the biaxially oriented PVC pipe body into four chambers for cable placement. The lowest chamber allows water flow, and the water inside the biaxially oriented PVC pipe body can flow to the lowest chamber through the through hole. Cables can be placed in the other three chambers for easy retrieval, maintenance, and replacement. This design also separates the cable from the water accumulation at the bottom of the biaxially oriented PVC pipe body, effectively preventing cable immersion. Furthermore, the triangular inner tube further enhances the strength of the biaxially oriented PVC pipe body.

[0012] 2. By setting straight reinforcing ribs and straight grooves, this utility model achieves the effect of improving the strength of the main body of the biaxially oriented PVC pipe while also facilitating the assembly of the triangular inner tube into the main body of the biaxially oriented PVC pipe. The setting of straight reinforcing ribs can improve the strength of the main body of the biaxially oriented PVC pipe itself, while the triangular inner tube is snapped into the inside of the main body of the biaxially oriented PVC pipe by straight reinforcing ribs and straight grooves.

[0013] 3. By setting a wear-resistant coating, this utility model can improve the wear resistance of the outer surface of the biaxially oriented PVC pipe body, thereby extending the service life of the biaxially oriented PVC pipe body.

[0014] 4. By setting a fire-retardant coating, this utility model can slow down the spread of fire when a fire occurs inside the main body of the biaxially oriented polyvinyl chloride pipe. Attached Figure Description

[0015] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0016] Figure 2 This is a partial three-dimensional structural diagram of the main body of the biaxially oriented polyvinyl chloride pipe of this utility model;

[0017] Figure 3 This is a partial three-dimensional structural diagram of the triangular inner tube of this utility model;

[0018] Figure 4 This is a schematic diagram of the main structure of this utility model.

[0019] Reference numerals: 1. Biaxially oriented PVC pipe body; 2. Triangular inner tube; 3. Wear-resistant coating; 4. Fire-retardant coating; 5. Straight reinforcing rib; 6. Through hole; 7. Straight groove. Detailed Implementation

[0020] The technical solution of this utility model will be further described below with reference to the accompanying drawings and specific embodiments.

[0021] Example 1

[0022] like Figures 1-4 As shown, this utility model proposes a biaxially oriented polyvinyl chloride (PVC) pipe for power applications, comprising a biaxially oriented PVC pipe body 1 and a triangular inner tube 2. The biaxially oriented PVC pipe body 1 is obtained by axially and radially stretching PVC-U pipe produced by extrusion. The biaxially oriented PVC pipe body 1 contains a triangular inner tube 2, and the outer surface of the triangular inner tube 2 is uniformly provided with a plurality of through holes 6. The through holes 6 facilitate the passage of water into the biaxially oriented PVC pipe body 1. The bottom of the biaxially oriented PVC pipe body 1 is reduced, and the weight and material of the triangular inner tube 2 are reduced. The outer surface of the biaxially oriented PVC pipe body 1 is provided with a wear-resistant coating 3. The wear-resistant coating 3 can improve the wear resistance of the outer surface of the biaxially oriented PVC pipe body 1, so as to extend the service life of the biaxially oriented PVC pipe body 1. The inner wall of the biaxially oriented PVC pipe body 1 and the inner and outer walls of the triangular inner tube 2 are both provided with a fire-retardant coating 4. When a fire occurs inside the biaxially oriented PVC pipe body 1, the fire-retardant coating 4 can slow down the fire and delay its spread.

[0023] In use, the triangular inner tube 2 divides the interior of the biaxially oriented PVC pipe body 1 into four chambers for cable protection. The lowest chamber is for water flow. The water inside the biaxially oriented PVC pipe body 1 can flow into the lowest chamber through the through hole 6. The cables can be placed in the other three chambers for easy retrieval, inspection and replacement. This also separates the cables from the water at the bottom of the biaxially oriented PVC pipe body 1, effectively preventing the cables from being immersed in water. At the same time, the triangular inner tube 2 further improves the strength of the biaxially oriented PVC pipe body 1.

[0024] Example 2

[0025] like Figures 1-4 As shown, the present invention proposes a biaxially oriented polyvinyl chloride (PVC) pipe for power applications. Compared with Embodiment 1, this embodiment further includes straight reinforcing ribs 5 at the three corner positions of the inner wall of the biaxially oriented PVC pipe body 1 near the triangular inner tube 2, and straight grooves 7 at the three corner positions of the outer surface of the triangular inner tube 2, with the three straight reinforcing ribs 5 respectively engaging inside the three straight grooves 7.

[0026] In this embodiment, the straight reinforcing rib 5 can improve the strength of the biaxially oriented PVC pipe body 1 itself, while the triangular inner tube 2 is snapped into the inside of the biaxially oriented PVC pipe body 1 by the straight reinforcing rib 5 and the straight groove 7, which facilitates the assembly of the triangular inner tube 2.

[0027] The above specific embodiments are merely several preferred embodiments of this utility model. Based on the technical solution of this utility model and the relevant teachings of the above embodiments, those skilled in the art can make various alternative improvements and combinations to the above specific embodiments.

Claims

1. A biaxially oriented polyvinyl chloride (PVC) pipe for power applications, comprising a biaxially oriented PVC pipe body (1) and a triangular inner tube (2), characterized in that: The biaxially oriented polyvinyl chloride pipe body (1) has a triangular inner tube (2) inside, and a number of through holes (6) are uniformly arranged on the outer surface of the triangular inner tube (2).

2. The biaxially oriented polyvinyl chloride pipe for power applications according to claim 1, characterized in that: Straight reinforcing ribs (5) are provided at the three corners of the inner wall of the biaxially oriented polyvinyl chloride pipe body (1) near the triangular inner pipe (2).

3. The biaxially oriented polyvinyl chloride pipe for power applications according to claim 2, characterized in that: The outer surface of the triangular inner tube (2) is provided with straight grooves (7) at the three corner positions, and the three straight reinforcing ribs (5) are respectively engaged in the three straight grooves (7).

4. The biaxially oriented polyvinyl chloride pipe for power applications according to claim 1, characterized in that: The outer surface of the biaxially oriented polyvinyl chloride pipe body (1) is provided with a wear-resistant coating (3).

5. A biaxially oriented polyvinyl chloride pipe for power applications according to claim 1, characterized in that: The inner wall of the biaxially oriented polyvinyl chloride pipe body (1) and the inner and outer walls of the triangular inner pipe (2) are both provided with a fire-retardant coating (4).

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