High-strength CIPP lining pipeline for non-excavation repair of municipal pipeline

Abstract

The high-strength CIPP lining pipeline for non-excavation repair of the municipal pipeline comprises an outer layer pipe, an inner surface functional layer, a reinforcing layer and an anti-static layer are sequentially arranged in the outer layer pipe from inside to outside, and a rectangular groove is formed in the outer surface of the outer layer pipe; the inner sealing rings are fixedly connected to the left end and the right end of the inner surface functional layer, and the outer sealing rings are fixedly connected to the front end and the rear end of the outer layer pipe. The sealing structure for the two ends of the CIPP lining pipeline is formed by the inner surface functional layer, the sealing inner ring, the outer layer pipe and the sealing outer ring, the sealing face is large, the two ends of the pipeline can be effectively sealed in a multi-layer mode, the sealing performance is better, leakage of the CIPP lining pipeline is avoided, use of the CIPP lining pipeline is facilitated, and the repairing quality is guaranteed; the outer-layer pipe and the rectangular groove form an installation adjusting structure, the CIPP lining pipeline can be moved and rotated through the rectangular groove, adjustment and accurate installation of the CIPP lining pipeline are facilitated, the repairing difficulty is lowered, and the repairing efficiency is improved.

Description

Technical Field

[0001] This utility model relates to the field of municipal pipeline engineering technology, and in particular to a high-strength CIPP lined pipe for trenchless repair of municipal pipelines. Background Technology

[0002] The existing CIPP-lined pipes are inconvenient to install, and the sealing at the joints is insufficient, which affects the efficiency and quality of pipe repair. A Chinese patent discloses a "CIPP-lined pipe for trenchless repair of municipal pipelines" (application number CN202021976576.9). The reinforced mesh layer increases the overall strength, pressure resistance, and deformation resistance of the lining pipe. Water-swellable rubber rings expand to form a seal when fluid leaks. A temperature-regulating zone prevents thermal damage to the ultra-high molecular weight polyethylene lining pipe from long-term temperature changes. The design of the impact-resistant guide pipe reduces the impact of fluid on the end face of the ultra-high molecular weight polyethylene lining pipe. However, during repair operations, the installation of this CIPP-lined pipe is inconvenient, and the sealing is insufficient, affecting the repair efficiency and quality. Utility Model Content

[0003] The purpose of this utility model is to solve at least one of the technical problems existing in the prior art, and to provide a high-strength CIPP lined pipe for trenchless repair of municipal pipelines. The CIPP lined pipe has a sealing structure at both ends consisting of an inner surface functional layer, a sealing inner ring, an outer pipe, and a sealing outer ring. This provides a large sealing surface, effectively sealing both ends of the pipe in multiple layers, resulting in better sealing performance and preventing leakage. This facilitates the use of CIPP lined pipes and ensures the quality of pipeline repair. The outer pipe and rectangular groove form an adjustment structure during installation, allowing the CIPP lined pipe to be moved and rotated, which is beneficial for adjustment and precise installation, reducing the difficulty of repair and improving repair efficiency. Made from a composite of multiple materials, it features good corrosion resistance, oxidation resistance, tensile strength, wear resistance, high strength, and high temperature resistance, contributing to the extension of the pipeline's service life.

[0004] This utility model also provides a high-strength CIPP lining pipe for trenchless repair of municipal pipelines, comprising: an outer pipe, wherein the inner surface of the outer pipe is provided with an inner surface functional layer, a reinforcing layer and an antistatic layer in sequence from the inside to the outside, and a rectangular groove is provided on the outer surface of the outer pipe; a sealing inner ring and a sealing outer ring, wherein the sealing inner ring is fixedly connected to the left and right ends of the inner surface functional layer and the sealing outer ring is fixedly connected to the front and rear ends of the outer pipe.

[0005] According to the present invention, a high-strength CIPP lining pipe for trenchless repair of municipal pipelines has the left and right ends of the reinforcing layer flush with the left and right ends of the antistatic layer, resulting in a compact and stable pipe structure.

[0006] According to the present invention, a high-strength CIPP lining pipe for trenchless repair of municipal pipelines is provided, wherein the outer surface of the inner functional layer is bonded to the inner surface of the reinforcing layer, thereby ensuring a stable and tight pipe structure.

[0007] According to the present invention, a high-strength CIPP lining pipe for trenchless repair of municipal pipelines is provided, wherein the inner surface of the antistatic layer is bonded to the outer surface of the reinforcing layer, and the outer surface of the antistatic layer is bonded to the inner surface of the outer pipe. This ensures a stable and tight pipe structure.

[0008] According to the present invention, a high-strength CIPP lining pipe for trenchless repair of municipal pipelines has rectangular grooves symmetrically distributed at both ends of the outer pipe, and the rectangular grooves are evenly arranged around the outer surface of the outer pipe. This facilitates rapid adjustment at both ends of the pipe and reduces the difficulty of installation and repair.

[0009] According to the present invention, a high-strength CIPP lining pipe for trenchless repair of municipal pipelines is provided, wherein the inner surface functional layer is made of epoxy resin to improve the corrosion resistance of the pipe. The reinforcing layer is made of glass fiber to improve the corrosion resistance and oxidation resistance of the pipe.

[0010] According to this utility model, a high-strength CIPP lining pipe for trenchless repair of municipal pipelines is provided. The antistatic layer is made of carbon fiber, which improves the corrosion resistance and strength of the pipe. The outer pipe is made of polyurethane, which improves the wear resistance and high-temperature resistance of the pipe.

[0011] According to the present invention, a high-strength CIPP lined pipe for trenchless repair of municipal pipelines has an inner surface that abuts against the left and right ends of the reinforcing layer and the antistatic layer, and an outer surface of the inner sealing ring that is flush with the outer surface of the antistatic layer. This facilitates a stable seal at both ends of the pipeline, enabling the pipeline to meet repair requirements and facilitating its normal use.

[0012] According to the present invention, a high-strength CIPP lined pipe for trenchless repair of municipal pipelines has an inner surface that abuts against the outer surface of the sealing outer ring, and the inner surface of the sealing outer ring is flush with the inner surface of the inner functional layer. This facilitates stable sealing at both ends of the pipeline, enabling the pipeline to meet repair requirements and facilitating its normal use. Beneficial effects

[0013] 1. Compared with existing technologies, this high-strength CIPP lined pipe for trenchless repair of municipal pipelines has a sealing structure at both ends of the CIPP lined pipe consisting of an inner surface functional layer, a sealing inner ring, an outer pipe, and a sealing outer ring. The sealing surface is large, which can effectively seal both ends of the pipe in multiple layers, resulting in better sealing performance, avoiding leakage of the CIPP lined pipe, which is beneficial to the use of CIPP lined pipe and ensures the quality of pipeline repair.

[0014] 2. Compared with existing technologies, this high-strength CIPP lining pipe for trenchless repair of municipal pipelines has an adjustment structure composed of an outer pipe and a rectangular groove during installation. The CIPP lining pipe can be moved and rotated through the rectangular groove, which is conducive to the adjustment and precise installation of the CIPP lining pipe, reduces the difficulty of repair, and improves the repair efficiency.

[0015] 3. Compared with existing technologies, this high-strength CIPP lined pipe for trenchless repair of municipal pipelines is made of multiple composite materials and has the characteristics of good corrosion resistance, good oxidation resistance, good tensile strength, good wear resistance, high strength and high temperature resistance, which helps to extend the service life of the pipeline. Attached Figure Description

[0016] The present invention will be further described below with reference to the accompanying drawings and embodiments;

[0017] Figure 1 This is a longitudinal three-dimensional cross-sectional view of a high-strength CIPP lining pipe for trenchless repair of municipal pipelines according to the present invention.

[0018] Figure 2 This is a schematic diagram of the overall structure of a high-strength CIPP lined pipe for trenchless repair of municipal pipelines according to the present invention.

[0019] Figure 3 This is a schematic diagram of the transverse three-dimensional cross-sectional structure of a high-strength CIPP lining pipe for trenchless repair of municipal pipelines according to the present invention.

[0020] Figure 4 This is a schematic diagram of the transverse cross-sectional structure of a high-strength CIPP lined pipe for trenchless repair of municipal pipelines according to the present invention.

[0021] Legend:

[0022] 1. Inner surface functional layer; 2. Reinforcing layer; 3. Antistatic layer; 4. Outer tube; 5. Sealing inner ring; 6. Sealing outer ring; 7. Rectangular groove. Detailed Implementation

[0023] This section will describe in detail the specific embodiments of the present utility model. The preferred embodiments of the present utility model are shown in the accompanying drawings. The purpose of the drawings is to supplement the textual description with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the present utility model, but they should not be construed as limiting the scope of protection of the present utility model.

[0024] Reference Figure 1 , Figure 2 , Figure 3 and Figure 4 This utility model discloses a high-strength CIPP lining pipe for trenchless repair of municipal pipelines, comprising an outer pipe 4. The inner surface of the outer pipe 4 is sequentially arranged from the inside out with an inner surface functional layer 1, a reinforcing layer 2, and an antistatic layer 3. Rectangular grooves 7 are provided on the outer surface of the outer pipe 4, symmetrically distributed at both ends of the outer pipe 4 and evenly arranged around the outer surface of the outer pipe 4. The left and right ends of the reinforcing layer 2 are flush with the left and right ends of the antistatic layer 3. The outer surface of the inner surface functional layer 1 is bonded to the inner surface of the reinforcing layer 2, the inner surface of the antistatic layer 3 is bonded to the outer surface of the reinforcing layer 2, and the outer surface of the antistatic layer 3 is bonded to the inner surface of the outer pipe 4. The material of the inner surface functional layer 1 is epoxy resin, the material of the reinforcing layer 2 is glass fiber, the material of the antistatic layer 3 is carbon fiber, and the material of the outer pipe 4 is polyurethane.

[0025] Specifically, during the repair process, the CIPP liner pipe is placed into the municipal pipeline that needs to be repaired. The CIPP liner pipe is moved and rotated by the rectangular groove 7 on the outer surface of the outer pipe 4 to adjust its installation position. After the installation position of the CIPP liner pipe is adjusted, it is heated, and the resin will cure to form a high-strength liner layer that fits tightly with the original pipeline, thereby completing the repair of the municipal pipeline.

[0026] Reference Figure 1 and Figure 2 The inner sealing ring 5 and the outer sealing ring 6 are fixedly connected to the left and right ends of the inner surface functional layer 1, and the outer sealing ring 6 is fixedly connected to the front and rear ends of the outer tube 4. The inner surface of the inner sealing ring 5 abuts against the left and right ends of the reinforcing layer 2 and the antistatic layer 3. The outer surface of the inner sealing ring 5 is flush with the outer surface of the antistatic layer 3. The inner surface of the outer sealing ring 6 abuts against the outer surface of the inner sealing ring 5. The inner surface of the outer sealing ring 6 is flush with the inner surface of the inner surface functional layer 1.

[0027] Specifically, after the installation of CIPP lined pipes and the repair of municipal pipelines are completed, the inner sealing ring 5 and the outer sealing ring 6 at both ends of the CIPP lined pipes will form a sealing structure, providing a stable seal at the repaired connection and further enhancing the repair effect.

[0028] Working principle: CIPP lined pipes are used to repair municipal pipelines. During installation, the CIPP lined pipe is placed inside the pipeline to be repaired, and the resin is cured by heating to form a high-strength inner lining layer that fits tightly against the original pipeline. The repaired inner lining pipe has the characteristics of good corrosion resistance, good oxidation resistance, good tensile strength, good wear resistance, high strength, and high temperature resistance.

[0029] The embodiments of the present utility model have been described in detail above with reference to the accompanying drawings. However, the present utility model is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present utility model.

Claims

1. A high strength CIPP liner pipe for trenchless rehabilitation of a municipal pipe, characterized in that, include: The outer tube (4) has an inner surface functional layer (1), a reinforcing layer (2) and an antistatic layer (3) arranged sequentially from the inside to the outside. The outer surface of the outer tube (4) has a rectangular groove (7). The inner sealing ring (5) and the outer sealing ring (6) are fixedly connected to the left and right ends of the inner surface functional layer (1) and the outer sealing ring (6) is fixedly connected to the front and rear ends of the outer tube (4).

2. A high strength CIPP pipe for trenchless rehabilitation of a municipal pipe according to claim 1, characterized in that The left and right ends of the reinforcing layer (2) are flush with the left and right ends of the antistatic layer (3).

3. A high strength municipal pipe CIPP lining pipe for trenchless rehabilitation of a pipe according to claim 1, characterized in that, The outer surface of the inner surface functional layer (1) is attached to the inner surface of the reinforcing layer (2).

4. A high strength municipal pipe CIPP lining pipe for trenchless rehabilitation of a pipe according to claim 1, characterized in that, The inner surface of the antistatic layer (3) is attached to the outer surface of the reinforcing layer (2), and the outer surface of the antistatic layer (3) is attached to the inner surface of the outer tube (4).

5. A high-strength CIPP-lined pipe for trenchless repair of municipal pipelines according to claim 1, characterized in that, The rectangular grooves (7) are symmetrically distributed at the left and right ends of the outer tube (4), and the rectangular grooves (7) are evenly arranged around the outer surface of the outer tube (4).

6. A high strength municipal pipe CIPP lining pipe for trenchless rehabilitation of a pipe according to claim 1, characterized in that, The inner surface functional layer (1) is made of epoxy resin, and the reinforcing layer (2) is made of glass fiber.

7. A high strength municipal pipe CIPP lining pipe for trenchless rehabilitation of a pipe according to claim 1, characterized in that, The antistatic layer (3) is made of carbon fiber, and the outer tube (4) is made of polyurethane.

8. A high strength municipal pipe CIPP lining pipe for trenchless rehabilitation of a pipe according to claim 1, characterized in that, The inner surface of the sealing inner ring (5) abuts against the left and right ends of the reinforcing layer (2) and the antistatic layer (3), and the outer surface of the sealing inner ring (5) is flush with the outer surface of the antistatic layer (3).

9. A high strength municipal pipe CIPP lining pipe for trenchless rehabilitation of a pipe according to claim 1, characterized in that, The inner surface of the sealing outer ring (6) abuts against the outer surface of the sealing inner ring (5), and the inner surface of the sealing outer ring (6) is flush with the inner surface of the inner surface functional layer (1).

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