Corrosion-resistant drainage pipeline

Abstract

The utility model discloses a corrosion-resistant drainage pipeline, and relates to the technical field of drainage pipelines, according to the corrosion-resistant drainage pipeline, a low-temperature-resistant layer is made of polytetrafluoroethylene, so that the corrosion-resistant drainage pipeline has excellent low-temperature resistance and can keep stability and plasticity at extremely low temperature, and meanwhile, the corrosion-resistant drainage pipeline is matched with a first heat preservation layer and a second heat preservation layer; the inner-layer corrosion-resistant layer is made of polyethylene, the outer-layer corrosion-resistant layer is made of epoxy resin composite coating, the corrosion resistance of the inner surface and the outer surface of the drainage pipeline can be improved conveniently, and the corrosion resistance of the drainage pipeline is improved. And meanwhile, the outer corrosion-resistant layer and the pipeline body are protected in cooperation with the wear-resistant layer, surface wear is reduced, and the service life of the corrosion-resistant drainage pipeline is further prolonged.

Description

Technical Field

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

[0002] Drainage pipes refer to the system composed of pipes and their ancillary facilities that collect and discharge sewage, wastewater and rainwater, including main pipes, branch pipes and pipes leading to treatment plants. No matter whether they are built on the streets or anywhere else, as long as they serve the purpose of drainage, they should be counted as drainage pipes.

[0003] For example, publication number CN211902069U discloses a corrosion-resistant drainage pipe, including a pipe body, wherein the pipe body is composed of a base layer, an anti-corrosion layer and a wear-resistant layer, wherein the base layer is located on the inner side of the anti-corrosion layer, wherein the anti-corrosion layer is located on the inner side of the wear-resistant layer, wherein the wear-resistant layer is composed of a polyurethane coating, a boron nitride coating layer and a solid resin layer, wherein the polyurethane coating is located on the inner side of the boron nitride coating layer, and wherein the boron nitride coating layer is located on the inner side of the solid resin layer. The utility model can play an anti-corrosion role on the drainage pipe when the drainage pipe is in use by cooperating with the anti-corrosion layer, polyolefin, triethylene anti-corrosion and furan glue, thereby avoiding the poor anti-corrosion effect of the existing drainage pipe when the drainage pipe is in use, thereby causing the drainage pipe to corrode when used for a long time, causing the drainage pipe to be unable to be used normally, and is suitable for promotion and use.

[0004] The existing corrosion-resistant drainage pipe itself is a fixed facility used for a long time. The ambient temperature of the drainage pipe will change constantly. Generally, the drainage pipe is easily affected by low temperature, which leads to the degradation of various performances of the materials of the corrosion-resistant drainage pipe and makes the drainage pipe more susceptible to damage, affecting the service life of the corrosion-resistant drainage pipe. Utility Model Content

[0005] In view of the deficiencies in the prior art, the utility model provides a corrosion-resistant drainage pipe to solve the problem raised in the above background technology that the existing corrosion-resistant drainage pipe itself is a fixed facility for long-term use, the ambient temperature of the drainage pipe will constantly change, and the general drainage pipe is easily affected by low temperature, resulting in a decrease in various performances of the material of the corrosion-resistant drainage pipe, and making the drainage pipe more susceptible to damage, affecting the service life of the corrosion-resistant drainage pipe.

[0006] To achieve the above objectives, the utility model is implemented through the following technical solutions: a corrosion-resistant drainage pipe, comprising a pipe base, the inner surface of the pipe base is fixedly connected with an inner corrosion-resistant layer, the outer surface of the pipe base is fixedly connected with a low-temperature resistant layer, the outer surface of the low-temperature resistant layer is fixedly connected with a sound insulation layer, the outer surface of the sound insulation layer is fixedly connected with an anti-aging layer, the outer surface of the anti-aging layer is fixedly connected with a thermal insulation layer one, a thermal insulation cavity is opened inside the thermal insulation layer one, support rings are arranged between the thermal insulation cavities, the outer surface of the thermal insulation layer one is fixedly connected with a thermal insulation layer two, the outer surface of the thermal insulation layer two is fixedly connected with an outer corrosion-resistant layer, and the outer surface of the outer corrosion-resistant layer is fixedly connected with a wear-resistant layer.

[0007] Preferably, the inner corrosion-resistant layer is made of polyethylene, and the low-temperature-resistant layer is made of polytetrafluoroethylene.

[0008] Preferably, the sound insulation layer is made of sound-absorbing sponge, and the anti-aging layer is made of polyvinyl chloride.

[0009] Preferably, the heat-insulating cavities and the support rings are distributed in a staggered manner, and the support rings are made of polypropylene.

[0010] Preferably, the interior of the thermal insulation cavity is filled with rock wool fibers, and the second thermal insulation layer is made of glass fiber wool.

[0011] Preferably, the outer corrosion-resistant layer is an epoxy resin composite coating, and the wear-resistant layer is a polyester resin coating. Beneficial Effects

[0012] The utility model provides a corrosion-resistant drainage pipe. Compared with the prior art, it has the following beneficial effects:

[0013] The corrosion-resistant drainage pipe has excellent low-temperature resistance because the low-temperature resistant layer is made of polytetrafluoroethylene, and can maintain stability and plasticity at extremely low temperatures. At the same time, it cooperates with the first insulation layer and the second insulation layer to reduce the temperature change amplitude of the inner layer, effectively improving the temperature resistance of the corrosion-resistant drainage pipe and avoiding the influence of the pipe material on the low temperature. The inner corrosion-resistant layer is made of polyethylene and the outer corrosion-resistant layer is made of epoxy resin composite coating, so it is convenient to improve the corrosion resistance of the inner and outer surfaces of the drainage pipe, and avoid the pipe material from contacting acidic and alkaline substances to cause itself to corrode. At the same time, it cooperates with the wear-resistant layer to form protection for the outer corrosion-resistant layer and the pipe itself, reduce surface wear, and further improve the service life of the corrosion-resistant drainage pipe. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a three-dimensional structural schematic diagram of the utility model.

[0015] Figure 2 The structure of the utility model is shown in FIG. Figure 1 .

[0016] Figure 3 The structure of the utility model is shown in FIG. Figure 2 .

[0017] In the figure: 1. Pipeline base layer; 2. Inner corrosion-resistant layer; 3. Low-temperature resistant layer; 4. Sound insulation layer; 5. Anti-aging layer; 6. Insulation layer one; 7. Insulation cavity; 8. Support ring; 9. Insulation layer two; 10. Outer corrosion-resistant layer; 11. Wear-resistant layer. DETAILED DESCRIPTION

[0018] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0019] See also Figure 1-3 The utility model provides a technical solution: a corrosion-resistant drainage pipe, comprising a pipe base 1, an inner corrosion-resistant layer 2 is fixedly connected to the inner surface of the pipe base 1, a low-temperature-resistant layer 3 is fixedly connected to the outer surface of the pipe base 1, a sound insulation layer 4 is fixedly connected to the outer surface of the low-temperature-resistant layer 3, an anti-aging layer 5 is fixedly connected to the outer surface of the sound insulation layer 4, the sound insulation layer 4 is made of a sound-absorbing sponge material, and the anti-aging layer 5 is made of polyvinyl chloride. The sound insulation layer 4 is made of a sound-absorbing sponge material, which can effectively reduce the sound of water flow inside the pipe and realize the sound insulation function. The anti-aging layer 5 is made of polyvinyl chloride material, which has good anti-aging ability and is durable, which is conducive to improving the service life of the corrosion-resistant drainage pipe.

[0020] The outer surface of the anti-aging layer 5 is fixedly connected with a heat-insulating layer 1 6, and a heat-insulating cavity 7 is provided inside the heat-insulating layer 1 6. A support ring 8 is provided between the heat-insulating cavities 7. The outer surface of the heat-insulating layer 1 6 is fixedly connected with a heat-insulating layer 2 9. The low-temperature resistant layer 3 is made of polytetrafluoroethylene, and the heat-insulating cavity 7 and the support ring 8 are staggered. The support ring 8 is made of polypropylene. The inside of the heat-insulating cavity 7 is filled with rock wool fibers, and the heat-insulating layer 2 9 is made of glass fiber wool. The low-temperature resistant layer 3 is made of polytetrafluoroethylene, which has excellent low-temperature resistance and can maintain stability and plasticity at extremely low temperatures. At the same time, the heat-insulating layer 1 6 and the heat-insulating layer 2 9 are used to reduce the temperature change amplitude of the inner layer, effectively improve the temperature resistance of the corrosion-resistant drainage pipe, and avoid the pipe material from being affected by low temperature;

[0021] The outer surface of the thermal insulation layer 2 9 is fixedly connected with an outer corrosion-resistant layer 10, and the outer surface of the outer corrosion-resistant layer 10 is fixedly connected with a wear-resistant layer 11. The inner corrosion-resistant layer 2 is made of polyethylene, the outer corrosion-resistant layer 10 is an epoxy resin composite coating, and the wear-resistant layer 11 is a polyester resin coating. The inner corrosion-resistant layer 2 is made of polyethylene and the outer corrosion-resistant layer 10 is an epoxy resin composite coating, which is convenient for improving the corrosion resistance of the inner and outer surfaces of the drainage pipe, avoiding the corrosion of the pipe material due to contact with acidic and alkaline substances, and at the same time, the wear-resistant layer 11 is used to protect the outer corrosion-resistant layer 10 and the pipe itself, thereby reducing surface wear and further improving the service life of the corrosion-resistant drainage pipe.

[0022] During operation, the sound insulation layer 4 is made of sound-absorbing sponge material, which can effectively reduce the sound of water flow inside the pipe and realize the sound insulation function. The anti-aging layer 5 is made of polyvinyl chloride material, which has good anti-aging ability and is durable. The low-temperature resistant layer 3 is made of polytetrafluoroethylene material, which has excellent low-temperature resistance and can maintain stability and plasticity at extremely low temperatures. At the same time, the insulation layer 1 6 and the insulation layer 2 9 are used to reduce the amplitude of the inner temperature change, effectively improve the temperature resistance of the corrosion-resistant drainage pipe, and avoid the pipe material from being affected by low temperature. The inner corrosion-resistant layer 2 is made of polyethylene material and the outer corrosion-resistant layer 10 is an epoxy resin composite coating, which is convenient for improving the corrosion resistance of the inner and outer surfaces of the drainage pipe, avoiding the pipe material from contacting acidic and alkaline substances and causing itself to corrode. At the same time, the wear-resistant layer 11 is used to protect the outer corrosion-resistant layer 10 and the pipe itself, reducing surface wear.

[0023] Meanwhile, the contents not described in detail in this specification belong to the prior art known to those skilled in the art.

Claims

1. A corrosion-resistant drainage pipe, comprising a pipe base (1), characterized in that: The inner surface of the pipeline base (1) is fixedly connected to an inner corrosion-resistant layer (2), the outer surface of the pipeline base (1) is fixedly connected to a low-temperature resistant layer (3), the outer surface of the low-temperature resistant layer (3) is fixedly connected to a sound insulation layer (4), the outer surface of the sound insulation layer (4) is fixedly connected to an anti-aging layer (5), the outer surface of the anti-aging layer (5) is fixedly connected to a first insulation layer (6), a heat-insulating cavity (7) is provided inside the first insulation layer (6), a support ring (8) is provided between the heat-insulating cavities (7), the outer surface of the first insulation layer (6) is fixedly connected to a second insulation layer (9), the outer surface of the second insulation layer (9) is fixedly connected to an outer corrosion-resistant layer (10), and the outer surface of the outer corrosion-resistant layer (10) is fixedly connected to a wear-resistant layer (11).

2. The corrosion-resistant drainage pipe according to claim 1, characterized in that: The inner corrosion-resistant layer (2) is made of polyethylene, and the low-temperature-resistant layer (3) is made of polytetrafluoroethylene.

3. The corrosion-resistant drainage pipe according to claim 1, characterized in that: The sound insulation layer (4) is made of sound-absorbing sponge material, and the anti-aging layer (5) is made of polyvinyl chloride material.

4. The corrosion-resistant drainage pipe according to claim 1, characterized in that: The heat-insulating cavities (7) and the support rings (8) are distributed in a staggered manner, and the support rings (8) are made of polypropylene.

5. The corrosion-resistant drainage pipe according to claim 4, characterized in that: The interior of the thermal insulation cavity (7) is filled with rock wool fibers, and the second thermal insulation layer (9) is made of glass fiber wool.

6. The corrosion-resistant drainage pipe according to claim 1, characterized in that: The outer corrosion-resistant layer (10) is an epoxy resin composite coating, and the wear-resistant layer (11) is a polyester resin coating.

Images