Corrosion-resistant prestressed concrete cylinder pipe

Abstract

The utility model discloses a corrosion-resistant prestress steel cylinder concrete pipe which comprises a pipe body, a thin steel cylinder is arranged in the pipe body, a plurality of groups of inner reinforcing ribs are fixed on the inner wall of the thin steel cylinder in an array mode, a concrete pipe core inner wall is arranged on the inner side of the thin steel cylinder, and a plurality of groups of outer reinforcing ribs are arranged on the outer side wall of the thin steel cylinder in an array mode. A concrete pipe core outer wall is arranged on the outer side of the thin steel cylinder, and a high-strength steel wire is wound on the concrete pipe core outer wall. The concrete pipe core has the advantages that the inner reinforcing ribs and the outer reinforcing ribs are arranged on the two sides of the thin steel cylinder, the inner wall of the concrete pipe core is reinforced through the inner reinforcing ribs, the compression resistance of the concrete pipe core is improved, the outer wall of the concrete pipe core is reinforced through the outer reinforcing ribs, the compression resistance of the whole pipe body can be effectively improved through combination of the inner reinforcing ribs and the outer reinforcing ribs, and the service life of the pipe body is prolonged. And the use effect and the service life of the pipe body are ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of prestressed concrete cylinder pipes, and particularly relates to a corrosion-resistant prestressed concrete cylinder pipe. Background Technique

[0002] Prestressed Concrete Cylinder Pipe (PCCP for short) refers to a water conveyance pipe made by winding circumferential prestressed steel wires on a high-strength concrete pipe core with a steel cylinder, and then spraying a dense cement mortar protective layer thereon. It is a composite pipe made of thin steel plates, high-strength steel wires and concrete, which gives full play to the tensile strength and easy sealing of steel and the compressive strength and corrosion resistance of concrete, and has the characteristics of high tightness, high strength and high impermeability.

[0003] In the process of using the existing corrosion-resistant prestressed concrete cylinder pipes, since the thin steel cylinder and the concrete are two different materials and are formed by pouring, there is a situation where the concrete pipe core breaks due to poor compressive performance, which not only affects its use effect, but also results in a low service life. Therefore, there is an urgent need for a corrosion-resistant prestressed concrete cylinder pipe to solve the above problems. Content of the Utility Model

[0004] (1) Technical Problems to be Solved

[0005] The technical problem to be solved by the utility model is to provide a corrosion-resistant prestressed concrete cylinder pipe with good use effect and long service life by increasing the connection area between the thin steel cylinder and the concrete to ensure the bonding performance between the two according to the current situation of the prior art.

[0006] (2) Technical Solutions

[0007] The utility model is realized by the following technical solutions: The utility model provides a corrosion-resistant prestressed concrete cylinder pipe, which includes a pipe body. A thin steel cylinder is arranged inside the pipe body. A plurality of groups of inner reinforcing ribs are fixedly arranged in an array on the inner wall of the thin steel cylinder. The inner wall of the concrete pipe core is arranged inside the thin steel cylinder. A plurality of groups of outer reinforcing ribs are arranged in an array on the outer wall of the thin steel cylinder. The outer wall of the concrete pipe core is arranged outside the thin steel cylinder. High-strength steel wires are wound on the outer wall of the concrete pipe core.

[0008] Furthermore, the inner reinforcing ribs are formed on the inner wall of the thin steel cylinder, and a socket is opened at one end of the thin steel cylinder.

[0009] By adopting the above technical solutions, the thin steel cylinder can ensure its use performance as the skeleton of the pipe body, and the socket is convenient for splicing the pipe bodies.

[0010] Further, the inner wall of the concrete core is cast inside the thin steel cylinder. The thickness of the inner wall of the concrete core is greater than the length of the inner reinforcing ribs, and the inner reinforcing ribs are embedded in the inner wall of the concrete core.

[0011] By adopting the above technical solution, the inner reinforcing ribs can reinforce the inner wall of the concrete core and improve its compressive performance.

[0012] Further, the outer reinforcing ribs are formed on the outer side wall of the thin steel cylinder, and the length of the outer reinforcing ribs is consistent with the thickness of the outer wall of the concrete core.

[0013] By adopting the above technical solution, the outer reinforcing ribs can reinforce the outer wall of the concrete core and improve its compressive performance.

[0014] Further, the outer wall of the concrete core is cast outside the thin steel cylinder, and the outer reinforcing ribs are embedded in the outer wall of the concrete core.

[0015] By adopting the above technical solution, the combination of the outer wall of the concrete core, the thin steel cylinder and the inner wall of the concrete core can form a prestressed concrete cylinder pipe.

[0016] Further, the high-strength steel wires are embedded in the outer wall of the concrete core, and the high-strength steel wires are welded to the outer reinforcing ribs.

[0017] By adopting the above technical solution, the prestressed steel wires can improve the tensile performance of the pipe body.

[0018] Further, a protective layer is cast on the outer side of the outer wall of the concrete core, and the material of the protective layer is cement mortar.

[0019] By adopting the above technical solution, the protective layer can protect the prestressed concrete cylinder pipe.

[0020] Further, an epoxy asphalt coating is provided on the outer side of the protective layer, and the epoxy asphalt coating is bonded to the protective layer.

[0021] By adopting the above technical solution, the epoxy asphalt coating can improve the corrosion resistance of the prestressed concrete cylinder pipe.

[0022] (III) Beneficial Effects

[0023] The present utility model has the following beneficial effects compared with the prior art:

[0024] In order to solve the problem that in the process of using the existing corrosion-resistant prestressed concrete cylinder pipes, since the thin steel cylinder and the concrete are two different materials and are formed by pouring, there is a situation where the concrete pipe core breaks due to poor compressive performance, which not only affects its use effect but also results in a low service life. The utility model strengthens the inner wall of the concrete pipe core through the inner reinforcing ribs and the outer wall of the concrete pipe core through the outer reinforcing ribs on both sides of the thin steel cylinder. The inner reinforcing ribs reinforce the inner wall of the concrete pipe core to improve its compressive performance, and the outer reinforcing ribs reinforce the outer wall of the concrete pipe core to improve its compressive performance. The combination of the two can effectively improve the overall compressive performance of the pipe body and ensure the use effect and service life of the pipe body. Brief Description of the Drawings

[0025] Figure 1 Fig. is a schematic structural diagram of a corrosion-resistant prestressed concrete cylinder pipe according to the utility model;

[0026] Figure 2 Fig. is a schematic internal structure diagram of the pipe body in a corrosion-resistant prestressed concrete cylinder pipe according to the utility model;

[0027] Figure 3 Fig. is a main sectional view of the connection relationship among the thin steel cylinder, the outer wall of the concrete pipe core, and the inner wall of the concrete pipe core in a corrosion-resistant prestressed concrete cylinder pipe according to the utility model.

[0028] The descriptions of the reference numerals are as follows:

[0029] 1, pipe body; 2, epoxy asphalt coating; 3, high-strength steel wire; 4, thin steel cylinder; 5, inner wall of concrete pipe core; 6, outer wall of concrete pipe core; 7, protective layer; 8, inner reinforcing rib; 9, outer reinforcing rib. Detailed Description of the Preferred Embodiments

[0030] In order to make the purpose, technical solutions and advantages of the utility model more clear and understandable, the following further details the utility model in combination with the drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the utility model and are not used to limit the utility model.

[0031] Such as Figures 1-3As shown in the figure, a corrosion-resistant prestressed concrete cylinder pipe in this embodiment includes a pipe body 1. A thin steel cylinder 4 is arranged inside the pipe body 1. The thin steel cylinder 4 serves as the framework of the pipe body 1 to ensure its service performance. The socket and spigot facilitate the splicing of the pipe body 1. Multiple groups of internal reinforcing ribs 8 are fixedly arranged in an array on the inner wall of the thin steel cylinder 4. The internal reinforcing ribs 8 can reinforce the inner wall 5 of the concrete pipe core and improve its compressive performance. The inner wall 5 of the concrete pipe core is arranged inside the thin steel cylinder 4. Multiple groups of external reinforcing ribs 9 are arranged in an array on the outer wall of the thin steel cylinder 4. The outer wall 6 of the concrete pipe core is arranged outside the thin steel cylinder 4. The external reinforcing ribs 9 can reinforce the outer wall 6 of the concrete pipe core and improve its compressive performance. High-strength steel wires 3 are wound around the outer wall 6 of the concrete pipe core. The prestressed steel wires 3 can improve the tensile performance of the pipe body 1.

[0032] As Figures 1-3 shown in the figure, in this embodiment, the internal reinforcing ribs 8 are formed on the inner wall of the thin steel cylinder 4. A socket and spigot are provided at one end of the thin steel cylinder 4. The inner wall 5 of the concrete pipe core is poured inside the thin steel cylinder 4. The thickness of the inner wall 5 of the concrete pipe core is greater than the length of the internal reinforcing ribs 8. The internal reinforcing ribs 8 are embedded in the inner wall 5 of the concrete pipe core. The external reinforcing ribs 9 are formed on the outer wall of the thin steel cylinder 4. The length of the external reinforcing ribs 9 is consistent with the thickness of the outer wall 6 of the concrete pipe core. The outer wall 6 of the concrete pipe core is poured outside the thin steel cylinder 4. The external reinforcing ribs 9 are embedded in the outer wall 6 of the concrete pipe core. The high-strength steel wires 3 are embedded in the outer wall 6 of the concrete pipe core. The high-strength steel wires 3 are welded to the external reinforcing ribs 9.

[0033] As Figures 1-3 shown in the figure, in this embodiment, a protective layer 7 is poured outside the outer wall 6 of the concrete pipe core. The material of the protective layer 7 is cement mortar. The protective layer 7 can protect the prestressed concrete cylinder pipe. An epoxy coal tar pitch coating 2 is arranged outside the protective layer 7. The epoxy coal tar pitch coating 2 is adhered to the protective layer 7. The epoxy coal tar pitch coating 2 can improve the corrosion resistance of the prestressed concrete cylinder pipe.

[0034] The specific implementation process of this embodiment is as follows: First, the pipe body 1 is spliced and laid through the socket and spigot reserved on the thin steel cylinder 4. During the use of the pipe body 1, since the internal reinforcing ribs 8 reinforce the inner wall 5 of the concrete pipe core and improve its compressive performance, and the external reinforcing ribs 9 reinforce the outer wall 6 of the concrete pipe core and improve its compressive performance, the combination of the two can effectively improve the overall compressive performance of the pipe body 1, and thus can ensure the use effect and service life of the pipe body 1. The protective layer 7 can protect the prestressed concrete cylinder pipe, and the epoxy coal tar pitch coating 2 improves the corrosion resistance of the prestressed concrete cylinder pipe.

[0035] The above description of the disclosed embodiments enables those skilled in the art to implement or use the present utility model. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the present utility model. Therefore, the present utility model will not be limited to these embodiments shown herein, but rather should be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A corrosion-resistant prestressed steel cylinder concrete pipe, characterized in that: The invention comprises a tube body (1), wherein a thin steel tube (4) is arranged inside the tube body (1), a plurality of groups of inner reinforcing ribs (8) are fixed in an array on the inner wall of the thin steel tube (4), a concrete tube core inner wall (5) is arranged on the inner side of the thin steel tube (4), a plurality of groups of outer reinforcing ribs (9) are arranged in an array on the outer wall of the thin steel tube (4), a concrete tube core outer wall (6) is arranged on the outer side of the thin steel tube (4), and a high-strength steel wire (3) is wound around the concrete tube core outer wall (6).

2. The corrosion-resistant prestressed steel cylinder concrete pipe according to claim 1, characterized in that: The inner reinforcing rib (8) is formed on the inner wall of the thin steel tube (4), and a socket is provided at one end of the thin steel tube (4).

3. The corrosion-resistant prestressed steel cylinder concrete pipe according to claim 1, characterized in that: The inner wall (5) of the concrete tube core is cast inside the thin steel cylinder (4); the thickness of the inner wall (5) of the concrete tube core is greater than the length of the inner reinforcing rib (8); and the inner reinforcing rib (8) is embedded in the inner wall (5) of the concrete tube core.

4. The corrosion-resistant prestressed steel cylinder concrete pipe according to claim 1, characterized in that: The external reinforcing ribs (9) are formed on the outer side wall of the thin steel cylinder (4), and the length of the external reinforcing ribs (9) is consistent with the thickness of the outer wall (6) of the concrete pipe core.

5. The corrosion-resistant prestressed steel cylinder concrete pipe according to claim 4, characterized in that: The outer wall (6) of the concrete tube core is cast outside the thin steel cylinder (4), and the outer reinforcing ribs (9) are embedded in the outer wall (6) of the concrete tube core.

6. The corrosion-resistant prestressed steel cylinder concrete pipe according to claim 5, characterized in that: The high-strength steel wire (3) is embedded in the outer wall (6) of the concrete pipe core, and the high-strength steel wire (3) is welded to the outer reinforcing rib (9).

7. The corrosion-resistant prestressed steel cylinder concrete pipe according to claim 6, characterized in that: A protective layer (7) is cast on the outside of the outer wall (6) of the concrete pipe core, and the material of the protective layer (7) is cement mortar.

8. The corrosion-resistant prestressed steel cylinder concrete pipe according to claim 7, characterized in that: An epoxidase asphalt coating (2) is provided on the outside of the protective layer (7), and the epoxidase asphalt coating (2) is bonded to the protective layer (7).

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