Non-excavation pipeline repair anti-corrosion lining pipe

Abstract

The utility model discloses a non-excavation pipeline repair anti-corrosion lining pipe which is characterized in that a first sealing frame is detachably connected to a round pipe, a bolt is arranged on the round pipe, the upper surface of the first sealing frame is detachably connected with a first connecting frame, the side surface of the bolt is detachably connected with a nut, and the nut is located above the first connecting frame. The end, away from the first sealing frame, of the round pipe is fixedly connected with a second connecting device. A cross-linked polyethylene protective layer is fixedly connected to the inner surface of the sealing pipe, a polyethylene anti-corrosion layer is arranged on the inner surface of the cross-linked polyethylene protective layer, a sealing layer is fixedly connected to the inner surface of the polyethylene anti-corrosion layer, a sealing inner pipe is fixedly connected to the inner surface of the sealing layer, and sealing gaskets are arranged at the two ends of the sealing pipe. The lining pipe can be stably and safely repaired, the sealing performance of the circular pipe can be enhanced, the pollution probability of the lining pipe is reduced, the repairing effect is guaranteed, the circular pipe is convenient to connect, and the connecting stability is high.

Description

Technical Field

[0001] The utility model relates to the technical field of lining pipes, and particularly relates to a trenchless pipeline repair and anti-corrosion lining pipe. Background Art

[0002] The trenchless pipeline repair and anti-corrosion lining pipe is a technology for pipeline repair and anti-corrosion without excavating the ground. This method usually includes lining a suitable material inside the pipeline to repair damaged or corroded pipelines and provide additional anti-corrosion protection. However, during the use of the lining pipe, the protection and sealing performance are insufficient, and the resistance to water flow erosion is poor, resulting in difficult guarantee of the repair effect, and it is not convenient for installation and connection. For example, the Chinese patent discloses "a lining pipe for trenchless pipeline repair", with the application number "CN202221078528.7", which includes: installation ports are arranged at both ends of the lining pipe body, an annular block is arranged in a dotted line manner on the outer side of the installation port, and a sealing port assembly is in contact with the inner side of the annular block and inside the lining pipe body. The lining pipe body includes a cured resin glue layer, a steel wire braided layer, a cord braided layer, an anti-corrosion layer, a waterproof layer and a wear-resistant layer. The sealing port assembly includes a sealing port. An annular groove is opened on the outer wall of the sealing port near the end face of the lining pipe body, and a first water-swelling water-stop strip is embedded in the annular groove. A ring-shaped extension pipe is arranged on the part of the sealing port placed in the inner cavity of the lining pipe body, and a second water-swelling water-stop strip is arranged in a groove on the outer wall of the ring-shaped extension pipe. Content of the Utility Model

[0003] The purpose of the utility model is to solve at least one of the technical problems existing in the prior art, and provide a trenchless pipeline repair and anti-corrosion lining pipe. By combining the use of a sealing inner pipe, a sealing gasket and a sealing pipe, a stable and strong sealing environment is provided for the lining pipe, and a sealing layer and a crosslinked polyethylene protective layer are arranged to provide safety protection for the polyethylene anti-corrosion layer, realizing the advantages that the lining pipe can carry out repair work stably and safely, enhance the sealing performance of the round pipe, reduce the probability of the lining pipe being polluted, and the lining pipe itself has excellent sealing and protection performance, which can effectively ensure the internal safety and stability, thus ensuring the repair effect. By arranging a connecting device two at the lower end of the round pipe for connection, and arranging a sealing frame one and a connecting block one at the upper end of the round pipe for connection and sealing, and respectively arranging a sealing plate one and a connecting plate one inside for enhancing the sealing performance and connection stability, and then stably connecting it with the round pipe through bolts and nuts, the advantages of high stability of the connecting device body, strong and stable connection function, stable connection with the round pipe, convenient connection of the round pipe and high connection stability are realized.

[0004] The present utility model also provides a trenchless pipeline repair and anti-corrosion lining pipe having the above-mentioned one, including: a circular pipe, a sealing frame one is detachably connected to the circular pipe, bolts are arranged on the circular pipe, a connecting frame one is detachably connected to the upper surface of the sealing frame one, nuts are detachably connected to the side surfaces of the bolts, the nuts are located above the connecting frame one, and a connecting device two is fixedly connected to one end of the circular pipe away from the sealing frame one; a sealing pipe, a crosslinked polyethylene protective layer is fixedly connected to the inner surface of the sealing pipe, a polyethylene anti-corrosion layer is arranged on the inner surface of the crosslinked polyethylene protective layer, a sealing layer is fixedly connected to the inner surface of the polyethylene anti-corrosion layer, a sealing inner pipe is fixedly connected to the inner surface of the sealing layer, and sealing gaskets are arranged at both ends of the sealing pipe. Through the above devices, the lining pipe can perform repair work stably and safely, enhance the sealing performance of the circular pipe, reduce the probability of the lining pipe being contaminated, ensure the repair effect, and has the advantages of convenient connection of the circular pipe and high connection stability.

[0005] According to the trenchless pipeline repair and anti-corrosion lining pipe of the present utility model, a sealing plate one is arranged inside the sealing frame one, and a connecting plate one is arranged inside the connecting frame one. Through the above devices, the effect of enhancing the performance of the connecting frame one and the sealing frame one is achieved.

[0006] According to the trenchless pipeline repair and anti-corrosion lining pipe of the present utility model, the inner surface of the circular pipe is fixedly connected to the sealing pipe, and an adhesive layer is arranged between the circular pipe and the sealing pipe. Through the above devices, the advantage of effectively enhancing the connection stability between the lining pipe and the circular pipe is achieved.

[0007] According to the trenchless pipeline repair and anti-corrosion lining pipe of the present utility model, the sealing frame one is detachably connected to the bolt, and the connecting frame one is detachably connected to the bolt. Through the above devices, the connection between the sealing frame one and the connecting frame one is sealed, thereby enhancing the sealing effect.

[0008] According to the trenchless pipeline repair and anti-corrosion lining pipe of the present utility model, the sealing gasket is fixedly connected to the polyethylene anti-corrosion layer, and the sealing gasket is fixedly connected to the sealing inner pipe. Through the above devices, the connection between the sealing gasket and the lining pipe is sealed, and the advantage of improving the sealing performance of the lining pipe is achieved.

[0009] According to the trenchless pipeline repair and anti-corrosion lining pipe of the present utility model, the connecting device two is composed of a sealing frame two, a connecting frame two, a sealing plate two, a connecting plate two and connecting screws, and the sealing frame two is fixedly connected to the circular pipe. Through the above devices, the effect of clear internal components of the connecting device two and thus providing a stable connection function is achieved.

[0010] According to a trenchless pipeline repair and anti-corrosion lining pipe of the present utility model, the second sealing plate is located inside the second sealing frame, and the second connecting plate is located inside the second connecting frame. Through the above device, the advantage of enhancing the connection performance between the second sealing frame and the second connecting frame is achieved.

[0011] According to a trenchless pipeline repair and anti-corrosion lining pipe of the present utility model, connection grooves are provided inside the second sealing frame, the second connecting frame, the second sealing plate and the second connecting plate, and the connecting screws are detachably connected to the connection grooves. Through the above device, the effect of enhancing the stability of the connection device itself is achieved. Beneficial effects

[0012] 1. Compared with the prior art, for this trenchless pipeline repair and anti-corrosion lining pipe, by combining the sealing inner pipe, the sealing gasket and the sealing pipe, a stable and strong sealing environment is provided for the lining pipe, and a sealing layer and a cross-linked polyethylene protective layer are provided to protect the polyethylene anti-corrosion layer safely. The advantages are that the lining pipe can carry out the repair work stably and safely, and can enhance the sealing performance of the round pipe, reduce the probability of the lining pipe being contaminated, and the lining pipe itself has excellent sealing and protection performance, which can effectively ensure the internal safety and stability, thus ensuring the repair effect.

[0013] 2. Compared with the prior art, for this trenchless pipeline repair and anti-corrosion lining pipe, a second connecting device is provided at the lower end of the round pipe for connection, and a first sealing frame and a first connecting block are provided at the upper end of the round pipe for connection and sealing, and a first sealing plate and a first connecting plate are respectively provided inside thereof to enhance the sealing performance and connection stability. Then, through bolts and nuts, it is stably connected to the round pipe. The advantages are that the connection device body has high stability, can provide a strong and stable connection function, is stably connected to the round pipe, makes the round pipe easy to connect, and has high connection stability. Description of the drawings

[0014] The following further describes the present utility model in conjunction with the drawings and embodiments;

[0015] Figure 1 It is the overall structure diagram of the trenchless pipeline repair and anti-corrosion lining pipe of the present utility model;

[0016] Figure 2 It is the side view structure diagram of the trenchless pipeline repair and anti-corrosion lining pipe of the present utility model;

[0017] Figure 3 It is the right view sectional view of the trenchless pipeline repair and anti-corrosion lining pipe of the present utility model;

[0018] Figure 4 It is the left view sectional view of the trenchless pipeline repair and anti-corrosion lining pipe of the present utility model.

[0019] Legend description:

[0020] 1. Round tube; 2. First sealing frame; 3. First connecting frame; 4. Bolt; 5. Nut; 6. Second connecting device; 7. Sealed inner tube; 8. First connecting plate; 9. First sealing plate; 10. Sealing gasket; 11. Sealing tube; 12. Cross-linked polyethylene protective layer; 13. Polyethylene anti-corrosion layer; 14. Sealing layer. Detailed implementation manners

[0021] This part will describe in detail the specific embodiments of the present utility model. The preferred embodiments of the present utility model are shown in the drawings. The function of the drawings is to supplement the description in the text part of the specification, enabling people to intuitively and vividly understand each technical feature and the overall technical solution of the present utility model. However, it should not be construed as a limitation on the protection scope of the present utility model.

[0022] Referring to Figures 1-4 , an in-situ pipe rehabilitation and anti-corrosion lining pipe in an embodiment of the present utility model includes: a round tube 1, which is the external pipe of the lining pipe and is used for installation and connection; a first sealing frame 2 is detachably connected to the round tube 1 and is used for connection and installation work; a first sealing plate 9 is arranged inside the first sealing frame 2 and is used to enhance the sealing performance of the first sealing frame 2; bolts 4 are arranged on the round tube 1 and are used to connect and fix the first sealing frame 2, the first connecting frame 3, the first sealing plate 9 and the first connecting plate 8.

[0023] A first connecting frame 3 is detachably connected to the upper surface of the first sealing frame 2 and is used for connection work; a first connecting plate 8 is arranged inside the first connecting frame 3 and is used to enhance the connection stability of the first connecting frame 3; a nut 5 is detachably connected to the side surface of the bolt 4 and is used for fixing work in combination with the bolt 4. The nut 5 is located above the first connecting frame 3 to limit the nut 5. The first sealing frame 2 is detachably connected to the bolt 4, and the first connecting frame 3 is detachably connected to the bolt 4, so as to stably connect and fix the first sealing frame 2 and the first connecting frame 3.

[0024] A sealing tube 11 is used to form the external sealing protection layer of the lining pipe. A cross-linked polyethylene protective layer 12 is fixedly connected to the inner surface of the sealing tube 11 and is used for the polyethylene anti-corrosion layer 13. A polyethylene anti-corrosion layer 13 is arranged on the inner surface of the cross-linked polyethylene protective layer 12 and is used for anti-corrosion repair work. A sealing layer 14 is fixedly connected to the inner surface of the polyethylene anti-corrosion layer 13 to seal the polyethylene anti-corrosion layer 13. A sealed inner tube 7 is fixedly connected to the inner surface of the sealing layer 14. In combination with the sealing tube 11, a sealing protection layer is formed. Sealing gaskets 10 are arranged at both ends of the sealing tube 11 and are used to enhance the sealing performance of the lining pipe. The sealing gaskets 10 are fixedly connected to the polyethylene anti-corrosion layer 13 and the sealed inner tube 7 to limit the sealing gaskets 10.

[0025] One end of the circular pipe 1 far away from the sealing frame 1 is fixedly connected with a connecting device 2, which provides the connecting function for the circular pipe 1. The inner surface of the circular pipe 1 is fixedly connected with the sealing pipe 11 to stably fix the inner lining pipe inside the circular pipe 1. There is an adhesive layer between the circular pipe 1 and the sealing pipe 11 to enhance the stability between the circular pipe 1 and the sealing pipe 11. The connecting device 2 is composed of a sealing frame 2, a connecting frame 2, a sealing plate 2, a connecting plate 2 and connecting screws, which defines the components of the connecting device 2.

[0026] The sealing frame 2 is fixedly connected with the circular pipe 1 to fix the sealing frame 2. The sealing plate 2 is located inside the sealing frame 2 to fix the position of the sealing plate 2. The connecting plate 2 is located inside the connecting frame 2 to limit the connecting plate 2. Connecting grooves are provided inside the sealing frame 2, the connecting frame 2, the sealing plate 2 and the connecting plate 2. The connecting screws are detachably connected with the connecting grooves, and the connecting grooves and the connecting screws are used in combination to ensure the stability of the connecting device 2.

[0027] Working principle: Taking the circular pipe 1 as the outer layer, an inner lining pipe is arranged inside it. Sealing gaskets 10 are arranged at both ends of the inner lining pipe to enhance the sealing performance. A sealing frame 1 is installed at the upper end of the circular pipe 1, and a connecting device 2 is installed at the lower end of the circular pipe 1 to provide the connecting function. A sealing plate 1 is arranged inside the sealing frame 1 to enhance the sealing performance. Bolts 4 are arranged at the upper end of the circular pipe 1, and the sealing frame 1 and the sealing plate 1 are connected through the bolts 4. Then, a connecting frame 1 is installed above the sealing frame 1 through the bolts 4, and a connecting plate 1 is installed inside the connecting frame 1 to enhance the connecting stability. Then, nuts 5 are installed on the bolts 4 for fixation. The inner lining pipe inside is composed of a sealing pipe 11, a cross-linked polyethylene protective layer 12, a polyethylene anti-corrosion layer 13, a sealing layer 14 and a sealed inner pipe 7 to ensure its sealing performance and stability.

[0028] The above has described the embodiments of the present invention in detail with reference to the accompanying drawings. However, the present invention is not limited to the above embodiments. Various changes can be made without departing from the gist of the present invention within the scope of knowledge possessed by those of ordinary skill in the art to which the present invention pertains.

Claims

1. A trenchless pipeline repair anti-corrosion liner pipe, characterized in that: include: A circular tube (1), the circular tube (1) being detachably connected to a sealing frame (2), the circular tube (1) being provided with bolts (4), the upper surface of the sealing frame (2) being detachably connected to a connecting frame (3), the side surface of the bolts (4) being detachably connected to a nut (5), the nut (5) being located above the connecting frame (3), and the end of the circular tube (1) away from the sealing frame (2) being fixedly connected to a connecting device (6); A sealing tube (11), wherein the inner surface of the sealing tube (11) is fixedly connected to a cross-linked polyethylene protective layer (12), the inner surface of the cross-linked polyethylene protective layer (12) is provided with a polyethylene anti-corrosion layer (13), the inner surface of the polyethylene anti-corrosion layer (13) is fixedly connected to a sealing layer (14), the inner surface of the sealing layer (14) is fixedly connected to a sealed inner tube (7), and sealing pads (10) are provided at both ends of the sealing tube (11).

2. The anti-corrosion liner pipe for trenchless pipeline repair according to claim 1 is characterized in that: A sealing plate 1 (9) is arranged inside the sealing frame 1 (2), and a connecting plate 1 (8) is arranged inside the connecting frame 1 (3).

3. The anti-corrosion liner pipe for trenchless pipeline repair according to claim 1 is characterized in that: The inner surface of the circular tube (1) is fixedly connected to the sealing tube (11), and an adhesive layer is provided between the circular tube (1) and the sealing tube (11).

4. The anti-corrosion liner pipe for trenchless pipeline repair according to claim 1 is characterized in that: The sealing frame 1 (2) is detachably connected to the bolt (4), and the connecting frame 1 (3) is detachably connected to the bolt (4).

5. The anti-corrosion liner pipe for trenchless pipeline repair according to claim 1 is characterized in that: The sealing gasket (10) is fixedly connected to the polyethylene anti-corrosion layer (13), and the sealing gasket (10) is fixedly connected to the sealing inner tube (7).

6. The anti-corrosion liner pipe for trenchless pipeline repair according to claim 1 is characterized in that: The second connecting device (6) is composed of a second sealing frame, a second connecting frame, a second sealing plate, a second connecting plate and connecting screws, and the second sealing frame is fixedly connected to the round tube (1).

7. The anti-corrosion liner pipe for trenchless pipeline repair according to claim 6 is characterized in that: The second sealing plate is located inside the second sealing frame, and the second connecting plate is located inside the second connecting frame.

8. The anti-corrosion liner pipe for trenchless pipeline repair according to claim 6, characterized in that: The sealing frame 2, the connecting frame 2, the sealing plate 2 and the connecting plate 2 are all provided with connecting grooves inside, and the connecting screws are detachably connected to the connecting grooves.

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