Concrete drainage pipe

Abstract

The utility model discloses a concrete drain pipe which comprises an inner pipe, an outer pipe is fixedly sleeved on the surface of the inner pipe, a prestressed reinforcement and a concrete layer are arranged between the inner pipe and the outer pipe, the inner pipe comprises a heat insulation layer, a corrosion-resistant layer is fixedly sleeved on the surface of the heat insulation layer, a protective layer is fixedly sleeved on the surface of the corrosion-resistant layer, and the protective layer is fixedly sleeved on the surface of the heat insulation layer. The heat insulation layer comprises a polyurethane layer, the surface of the polyurethane layer is fixedly sleeved with a zinc plate layer, the corrosion-resistant layer comprises a Kangwen silver-loaded antibacterial agent layer, the surface of the Kangwen silver-loaded antibacterial agent layer is fixedly sleeved with a heavy-duty anti-corrosion nano ceramic coating layer, the protection layer comprises a glass fiber layer, and the glass fiber layer is coated with an anti-corrosion nano ceramic coating layer. The surface of the glass fiber layer is fixedly sleeved with a polycaprolactam resin layer. Through the matching of the polyurethane layer and the zinc plate layer, the heat resistance of the pipe is enhanced, so that the pipe can bear the contact with the internal environment temperature, and high temperature and low temperature can be well blocked.

Description

Technical Field

[0001] The utility model relates to the technical field of drainage pipes, in particular to a concrete drainage pipe. Background Art

[0002] By utilizing the expansion effect of autogenous stress cement during hardening to generate prestress, the manufacturing process is simplified. In urban construction projects, concrete drainage pipes are essential and are mainly used in drainage systems.

[0003] The utility model patent with the publication number of CN207554996U discloses a concrete drainage pipe. The pipe wall of the concrete drainage pipe is successively composed of a first concrete layer, a plastic pipe layer, a reinforced concrete layer, and a second concrete layer from inside to outside. Among them, the steel bars in the reinforced concrete layer are in a coiled pipe shape. Compared with the prior art, the concrete drainage pipe of the utility model has four layers of structure, and the four layers are reasonably matched, so that the strength and waterproof performance of the concrete drainage pipe are both very good.

[0004] However, there are still some disadvantages in the actual use of the above device. The most obvious one is that during the use process, its external protection performance and heat insulation performance are poor. If the heat insulation performance is not high, it will lead to the inability to effectively block external and external unstable environmental factors. After a long time of friction and exposure to the sun with external objects, the surface is easily damaged. At the same time, if the corrosion resistance is poor, after a period of use, the pipeline is easily corroded and damaged by the impact of different liquids transported inside and external water flows, thus shortening the service life of the pipeline.

[0005] Therefore, it is very necessary to invent a concrete drainage pipe to solve the above problems. Content of the Utility Model

[0006] The purpose of the utility model is to provide a concrete drainage pipe, which has the advantages of improving the heat insulation, corrosion resistance layer and protection of the pipe material, thereby enhancing the service life, and solves the problems that if the heat insulation is not high, it will lead to the inability to effectively block external and external unstable environmental factors, and after a long time of friction and exposure to the sun with external objects, the surface is easily damaged, and the pipeline is easily corroded and damaged by the impact of different liquids transported inside and external water flows.

[0007] To achieve the above object, the present utility model provides the following technical solutions: A concrete drain pipe, comprising an inner pipe, on the surface of which an outer pipe is fixedly sleeved. A prestressed steel bar and a concrete layer are arranged between the inner pipe and the outer pipe. The inner pipe includes a heat insulation layer, on the surface of which a corrosion-resistant layer is fixedly sleeved. On the surface of the corrosion-resistant layer, a protective layer is fixedly sleeved. The heat insulation layer includes a polyurethane layer, on the surface of which a zinc plate layer is fixedly sleeved. The corrosion-resistant layer includes a Kangwang silver-loaded antibacterial agent layer, on the surface of which a heavy anti-corrosion nano-ceramic coating layer is fixedly sleeved. The protective layer includes a glass fiber layer, on the surface of which a polycaprolactam resin layer is fixedly sleeved. On the surface of the polycaprolactam resin layer, a polyimide layer is fixedly sleeved.

[0008] Preferably, the material of the polyurethane layer is polyurethane, and the material of the zinc plate layer is zinc plate.

[0009] Preferably, the material of the Kangwang silver-loaded antibacterial agent layer is Kangwang silver-loaded antibacterial agent, and the material of the heavy anti-corrosion nano-ceramic coating layer is heavy anti-corrosion nano-ceramic coating.

[0010] Preferably, the material of the glass fiber layer is glass fiber, the material of the polycaprolactam resin layer is polycaprolactam resin, and the material of the polyimide layer is polyimide.

[0011] Preferably, the surface of the zinc plate layer is fixedly connected to the inner wall of the Kangwang silver-loaded antibacterial agent layer, and the surface of the heavy anti-corrosion nano-ceramic coating layer is fixedly connected to the inner wall of the glass fiber layer.

[0012] Preferably, the inner pipe and the outer pipe are made of the same material, and the prestressed steel bar is composed of several longitudinal and circumferential ones.

[0013] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0014] 1. Through the cooperation of the polyurethane layer and the zinc plate layer, the present utility model has the function of enhancing the heat resistance of the pipe, enabling the pipe to withstand the internal environmental temperature contact and being able to well block high and low temperatures.

[0015] 2. Through the cooperation of the Kangwang silver-loaded antibacterial agent layer and the heavy anti-corrosion nano-ceramic coating layer, the present utility model has the function of enhancing the corrosion resistance of the pipe, avoiding being corroded by the external and internal environments, and improving the adaptability of the pipe.

[0016] 3. Through the cooperation of the glass fiber layer, the polycaprolactam resin layer and the polyimide layer, the present utility model has the function of enhancing the protection performance of the pipe, so that its surface will not be damaged after long-term friction with external objects, and the service life of the pipe is enhanced. Description of the Drawings

[0017] Figure 1 This is a three-dimensional schematic diagram of the utility model.

[0018] Figure 2 This is a sectional three-dimensional schematic diagram of the utility model.

[0019] Figure 3 This is a sectional three-dimensional schematic diagram of the inner tube of the utility model.

[0020] Figure 4 This is a sectional three-dimensional schematic diagram of the polyurethane layer and zinc plate layer of the utility model.

[0021] Figure 5 This is a sectional three-dimensional schematic diagram of the Kangwang silver-loaded antibacterial agent layer and heavy anti-corrosion nano-ceramic coating layer of the utility model.

[0022] Figure 6 This is a sectional three-dimensional schematic diagram of the glass fiber layer and polycaprolactam resin layer of the utility model.

[0023] In the figure: 1, inner tube; 2, outer tube; 3, prestressed steel bar; 4, concrete layer; 5, heat insulation layer; 6, corrosion-resistant layer; 7, protective layer; 8, polyurethane layer; 9, zinc plate layer; 10, Kangwang silver-loaded antibacterial agent layer; 11, heavy anti-corrosion nano-ceramic coating layer; 12, glass fiber layer; 13, polycaprolactam resin layer; 14, polyimide layer. Specific embodiments

[0024] Please refer to Figures 1-6 , a concrete drain pipe, including an inner tube 1, an outer tube 2 is fixedly sleeved on the surface of the inner tube 1, prestressed steel bars 3 and a concrete layer 4 are arranged between the inner tube 1 and the outer tube 2, the inner tube 1 includes a heat insulation layer 5, a corrosion-resistant layer 6 is fixedly sleeved on the surface of the heat insulation layer 5, a protective layer 7 is fixedly sleeved on the surface of the corrosion-resistant layer 6, the heat insulation layer 5 includes a polyurethane layer 8, a zinc plate layer 9 is fixedly sleeved on the surface of the polyurethane layer 8, the corrosion-resistant layer 6 includes a Kangwang silver-loaded antibacterial agent layer 10, a heavy anti-corrosion nano-ceramic coating layer 11 is fixedly sleeved on the surface of the Kangwang silver-loaded antibacterial agent layer 10, the protective layer 7 includes a glass fiber layer 12, a polycaprolactam resin layer 13 is fixedly sleeved on the surface of the glass fiber layer 12, a polyimide layer 14 is fixedly sleeved on the surface of the polycaprolactam resin layer 13. By providing the Kangwang silver-loaded antibacterial agent layer 10, the pipe plays an antibacterial role, ensuring cleanliness and hygiene. By providing the heavy anti-corrosion nano-ceramic coating layer 11, the pipe has good wear resistance, impact resistance and corrosion resistance.

[0025] The material of the polyurethane layer 8 is polyurethane, and the material of the zinc plate layer 9 is zinc plate.

[0026] The material of the Kangwang silver-loaded antibacterial agent layer 10 is Kangwang silver-loaded antibacterial agent, and the material of the heavy anti-corrosion nano-ceramic coating layer 11 is heavy anti-corrosion nano-ceramic coating.

[0027] The material of the glass fiber layer 12 is glass fiber, the material of the polycaprolactam resin layer 13 is polycaprolactam resin, and the material of the polyimide layer 14 is polyimide.

[0028] The surface of the zinc plate layer 9 is fixedly connected to the inner wall of the Kangwang silver-loaded antibacterial agent layer 10, and the surface of the heavy anti-corrosion nano-ceramic coating layer 11 is fixedly connected to the inner wall of the glass fiber layer 12.

[0029] The inner pipe 1 and the outer pipe 2 are made of the same material. The prestressed steel bars 3 are composed of several longitudinal and circumferential ones. Through the prestressed steel bars 3, the pipe has high crack resistance and impermeability.

[0030] When in use, through the polyurethane layer 8, the pipe has functions of high strength, tear resistance, wear resistance, moisture resistance, and resistance to acid and alkali media erosion, and also has electrical insulation properties and heat resistance and cold resistance functions. Through the zinc plate layer 9, the pipe has heat resistance, high temperature oxidation resistance and corrosion resistance. Through the glass fiber layer 12, the pipe has excellent tensile strength, bending strength and high impact strength. Through the polycaprolactam resin layer 13, the pipe has excellent anti-aging properties and good resistance to oil and organic solvents. Through the polyimide layer 14, the pipe has very high radiation resistance, mechanical properties, fatigue resistance, dimensional stability, oil resistance and alkali intolerance, and has excellent friction resistance and abrasion resistance.

[0031] To sum up: Through the cooperation of the inner pipe 1, the outer pipe 2, the prestressed steel bars 3, the concrete layer 4, the heat insulation layer 5, the corrosion-resistant layer 6 and the protective layer 7, this concrete drain pipe solves the problem that if the heat insulation is not high, it will not be able to effectively block external and external unstable environmental factors, and after long-term friction and exposure to the sun with external objects, the surface is easily damaged, and the pipe is easily corroded and damaged by the impact of different liquids transported inside and external water flows.

Claims

1. A concrete drain pipe, comprising an inner pipe (1), characterized in that: The surface of the inner tube (1) is fixedly sleeved with an outer tube (2). A prestressed steel bar (3) and a concrete layer (4) are arranged between the inner tube (1) and the outer tube (2). The inner tube (1) includes a heat insulation layer (5). The surface of the heat insulation layer (5) is fixedly sleeved with a corrosion-resistant layer (6). The surface of the corrosion-resistant layer (6) is fixedly sleeved with a protective layer (7). The heat insulation layer (5) includes a polyurethane layer (8). The surface of the polyurethane layer (8) is fixedly sleeved with a zinc plate layer (9). The corrosion-resistant layer (6) includes a Kangwang silver-loaded antibacterial agent layer (10). The surface of the Kangwang silver-loaded antibacterial agent layer (10) is fixedly sleeved with a heavy-duty anti-corrosion nano-ceramic coating layer (11). The protective layer (7) includes a glass fiber layer (12). The surface of the glass fiber layer (12) is fixedly sleeved with a polycaprolactam resin layer (13). The surface of the polycaprolactam resin layer (13) is fixedly sleeved with a polyimide layer (14).

2. A concrete drain pipe according to claim 1, characterized in that: The material of the polyurethane layer (8) is polyurethane, and the material of the zinc plate layer (9) is zinc plate.

3. A concrete drain pipe according to claim 1, characterized in that: The material of the Kangwang silver-loaded antibacterial agent layer (10) is Kangwang silver-loaded antibacterial agent, and the material of the heavy-duty anti-corrosion nano-ceramic coating layer (11) is heavy-duty anti-corrosion nano-ceramic coating.

4. A concrete drain pipe according to claim 1, characterized in that: The material of the glass fiber layer (12) is glass fiber, the material of the polycaprolactam resin layer (13) is polycaprolactam resin, and the material of the polyimide layer (14) is polyimide.

5. A concrete drain pipe according to claim 1, characterized in that: The surface of the zinc plate layer (9) is fixedly connected to the inner wall of the Kangwang silver-loaded antibacterial agent layer (10), and the surface of the heavy-duty anti-corrosion nano-ceramic coating layer (11) is fixedly connected to the inner wall of the glass fiber layer (12).

6. A concrete drain pipe according to claim 1, characterized in that: The inner tube (1) and the outer tube (2) are made of the same material, and the prestressed steel bar (3) is composed of several longitudinal and circumferential parts.

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