External anti-seepage reinforcement structure of buried circulating water pipeline

Abstract

The utility model relates to the technical field of buried circulating water pipelines, and specifically to an external anti-seepage reinforcement structure of a buried circulating water pipeline, comprising a steel pipeline, an external reinforcement structure arranged outside the steel pipeline, and an anti-seepage coating arranged on the inner wall of the steel pipeline, wherein the external reinforcement structure comprises an anti-friction layer, a water stop ring, and an anti-seepage base layer, wherein the water stop ring is welded and fixed to the outer wall of the steel pipeline, the anti-seepage base layer is coated on the outer wall of the steel pipeline, and the anti-friction layer is integrally formed and arranged on the end of the water stop ring away from the steel pipeline. The utility model improves the wear resistance, impact resistance and anti-seepage performance of the outer wall of the steel pipeline by arranging the external reinforcement structure, thereby extending the service life of the buried circulating water pipeline and reducing the repair cost.

Description

Technical Field

[0001] The utility model relates to the technical field of buried circulating water pipelines, in particular to an external anti-seepage reinforcement structure of a buried circulating water pipeline. Background Art

[0002] The buried circulating water pipeline is a pipeline system that transports water or other liquids from one location to another. It is usually used in industry, agriculture and urban infrastructure. Due to the particularity of the buried environment, the circulating water pipeline needs to be treated with anti-corrosion and anti-seepage treatment to extend the service life of the pipeline and prevent water leakage. The original anti-corrosion layer is epoxy coal tar "three cloths and five oils". Due to the wear of soil gravel, the original epoxy coal tar anti-corrosion layer has been damaged to varying degrees. In addition, the buried environment may have a high soil salt content. The epoxy coal tar is difficult to resist the penetration of chloride ions, resulting in widespread pitting corrosion on the surface of the circulating water pipeline. The depth of some corrosion points is close to 2mm. The local severe corrosion area has been perforated and leaking. In the long run, the pipe wall will continue to corrode, thin and perforate, affecting the service life and operation safety of the pipeline.

[0003] Therefore, it is necessary to strengthen the anti-seepage of the circulation pipeline. At the same time, the anti-seepage structure must have strong chemical corrosion resistance, corrosion medium permeability resistance, wear resistance and erosion resistance, tensile elongation at break (crack resistance) and substrate adhesion. Utility Model Content

[0004] The utility model aims to overcome the above technical problems and proposes an external anti-seepage reinforcement structure for a buried circulating water pipeline.

[0005] To achieve the above-mentioned purpose, the technical solution adopted by the utility model is as follows: an external anti-seepage reinforcement structure of an underground circulating water pipeline, comprising a steel pipeline, an external reinforcement structure arranged on the outside of the steel pipeline and an anti-seepage coating arranged on the inner wall of the steel pipeline, the external reinforcement structure comprising an anti-friction layer, a water-stop ring and an anti-seepage base layer, the water-stop ring is welded and fixed to the outer wall of the steel pipeline, the anti-seepage base layer is coated on the outer wall of the steel pipeline, and the anti-friction layer is integrally formed and arranged on the end of the water-stop ring away from the steel pipeline.

[0006] Furthermore, the anti-friction layer is formed by connecting a number of snap rings in sequence, and each of the snap rings is provided with a concave-convex structure at the upper and lower ends, and adjacent snap rings are fitted and plugged through the concave-convex structure.

[0007] Furthermore, a plurality of the water stop rings are arranged at intervals between the outer wall of the steel pipe and the inner wall of the clamping ring.

[0008] Furthermore, the water stop ring is a metal water stop ring.

[0009] Furthermore, the anti-seepage base layer includes a nano primer layer and a photocured nano sheet layer in sequence from the inside to the outside.

[0010] Furthermore, the number of layers of the nano primer coating is 1, and the thickness of the single layer of the nano primer coating is 50um-150um.

[0011] Furthermore, the number of layers of the photocurable nanosheet layer is 1, and the thickness of the single layer of the photocurable nanosheet layer is 1000um-3000um.

[0012] Furthermore, the anti-seepage coating includes, from the inside to the outside, a first anti-seepage coating, a glass fiber cloth and a second anti-seepage coating.

[0013] Furthermore, the first anti-seepage coating and the second anti-seepage coating are both made of epoxy resin coating.

[0014] From the above description of the utility model, it can be seen that compared with the prior art, the external anti-seepage reinforcement structure of an underground circulating water pipeline provided by the utility model has the beneficial effects: the utility model arranges an external reinforcement structure outside the steel pipeline, wherein the anti-friction layer is arranged on the outermost layer, which can effectively improve the impact resistance and buffering of the steel pipeline, so that the steel pipeline can play a protective role in the buried environment; the anti-seepage base layer is coated on the outer wall of the steel pipeline, which can effectively play an anti-seepage and corrosion-resistant role, and has good resistance to most acids, alkalis, salts, various oils and organic solvents, seawater and soil corrosion; the water stop ring is arranged between the anti-seepage base layer and the anti-friction layer, which can further improve the anti-leakage effect of the outer wall of the steel pipeline. At the same time, the inner wall of the steel pipeline is also provided with an anti-seepage coating, which cooperates with the external reinforcement structure arranged on the outer wall to protect the steel pipeline from cracking, seepage and corrosion from the inside to the outside, thereby improving the service life of the steel water pipe and reducing the repair cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a cross-sectional view of the overall structure of the external anti-seepage reinforcement structure of the buried circulating water pipeline of the utility model;

[0016] Figure 2 It is a structural schematic diagram of the external anti-seepage reinforcement structure of the buried circulating water pipeline of the utility model. DETAILED DESCRIPTION

[0017] The following will clearly and completely describe the technical solutions in the present utility model in conjunction with the drawings in the embodiments of the present utility model. Obviously, the described embodiments are only part of the embodiments of the present utility model, not all of the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the present utility model.

[0018] like Figure 1-2 As shown, an external anti-seepage reinforcement structure of a buried circulating water pipeline comprises a steel pipeline 1, an external reinforcement structure arranged outside the steel pipeline 1 and an anti-seepage coating 2 arranged on the inner wall of the steel pipeline 1, the external reinforcement structure comprises an anti-friction layer 3, a water stop ring 4 and an anti-seepage base layer 5, the water stop ring 4 is welded and fixed to the outer wall of the steel pipeline 1, the anti-seepage base layer 5 is coated on the outer wall of the steel pipeline 1, and the anti-friction layer 3 is integrally formed and arranged on the end of the water stop ring 4 away from the steel pipeline 1. The utility model improves the wear resistance, impact resistance and anti-seepage performance of the outer wall of the steel pipeline 1 by arranging the external reinforcement structure, prolongs the service life of the buried circulating water pipeline, and reduces the repair cost.

[0019] The anti-friction layer 3 is formed by connecting a number of clamping rings 31 in sequence. The upper and lower ends of each clamping ring 31 are provided with concave-convex structures. Adjacent clamping rings 31 are matched and plugged through the concave-convex structures, which is convenient for welding and assembly, and plays a protective role for the steel pipe 1. During the installation and transportation process, it can ensure that the inside of the steel pipe 1 will not be damaged and affect the use, and it can also play a wear-resistant buffer role.

[0020] Several of the water stop rings 4 are arranged at intervals between the outer wall of the steel pipe 1 and the inner wall of the clamping ring 31. The water stop rings 4 are metal water stop rings 4, and the water stop rings 4 are fully welded to the steel pipe 1. This arrangement has better sealing performance and makes the structure more waterproof.

[0021] The anti-seepage base layer 5 includes a nano primer layer and a photocured nano sheet layer from the inside to the outside. The number of layers of the nano primer layer is 1, and the thickness of a single layer of the nano primer layer is 50um-150um. The number of layers of the photocured nano sheet layer is 1, and the thickness of a single layer of the photocured nano sheet layer is 1000um-3000um. The nano primer layer and the photocured nano sheet layer are related products of Shishi Huabao New Materials Co., Ltd. For specific models, please refer to the company manual and official website. Among them, the photocured nano sheet layer uses photocured nano sheet series products, and the nano primer layer uses nano composite heavy anti-corrosion series products. Specifically, the selected product models are as follows: the nano primer layer uses WA807-1 type, and the photocured nano sheet layer uses photocured nano sheet 9110 type. The utility model can play an anti-seepage and anti-corrosion role by coating the nano primer layer and the photocured nano sheet layer on the outer wall of the steel pipeline 1.

[0022] Photocurable nanosheet series products: It is a multifunctional photocurable fiber-reinforced composite material made of a variety of nano-level corrosion-resistant and anti-seepage materials. The product has a soft film tape appearance, is light in weight, and is easy and quick to construct. It can be cut or tailored into various shapes, pasted, wrapped, and wrapped on the base to be protected or repaired according to the needs of the project. The polymer is quickly cross-linked and cured under sunlight or ultraviolet light. The curing time is only 5-20 minutes, and there is almost no solvent volatilization. There is no need for electric welding or fire during the construction process. It can be constructed all year round and does not require maintenance. It can be put into use immediately after construction, which greatly reduces the construction time, construction difficulty and labor cost.

[0023] After curing, it forms a high-strength, high-adhesion, high-temperature-resistant, seamless and sealed anti-corrosion and fire-proof insulation jacket, whose mechanical properties are comparable to those of metal materials. The product has excellent chemical corrosion resistance, temperature resistance and long service life, and has good resistance to most acids, alkalis, salts, various oils and organic solvents, seawater and soil corrosion. The shell is completely seamlessly sealed, without any connection parts that allow water, air and corrosive media to enter and exit, which can fundamentally prevent the penetration and convection of corrosive media or air inside and outside the layer, ensure the long-term stability of the substrate, and provide good anti-corrosion, protection and enhancement. It is suitable for heavy-duty anti-corrosion, temperature-resistant, wear-resistant, erosion-resistant, crack-resistant and impact-resistant systems.

[0024] The anti-seepage coating 2 includes a first anti-seepage coating, a glass fiber cloth and a second anti-seepage coating from the inside to the outside. The first anti-seepage coating 2 and the second anti-seepage coating 2 are both made of epoxy resin coating. The glass fiber cloth is used as a reinforcing material to increase the mechanical strength and wear resistance of the coating, and improve the durability and compressive resistance of the inner wall of the pipeline. The epoxy resin coating has good corrosion resistance and can effectively prevent the inner wall of the pipeline from being corroded by chemical substances, thereby extending the service life of the pipeline. The combination of the first anti-seepage coating 2 and the second anti-seepage coating 2 can form a complete anti-seepage layer to prevent liquid or gas from penetrating through the pipeline wall to the external environment of the pipeline, thereby protecting the soil and groundwater sources around the pipeline.

[0025] The above are only some specific implementation methods of the utility model, but the design concept of the utility model is not limited to this. Any non-substantial changes to the utility model using this concept shall be deemed as an infringement of the protection scope of the utility model.

Claims

1. The external anti-seepage reinforcement structure of the buried circulating water pipeline is characterized by: It includes a steel pipe, an external reinforcement structure arranged on the outside of the steel pipe and an anti-seepage coating arranged on the inner wall of the steel pipe, the external reinforcement structure includes an anti-friction layer, a water-stop ring and an anti-seepage base layer, the water-stop ring is welded and fixed to the outer wall of the steel pipe, the anti-seepage base layer is coated on the outer wall of the steel pipe, and the anti-friction layer is integrally formed and arranged on the end of the water-stop ring away from the steel pipe.

2. The external anti-seepage reinforcement structure of the buried circulating water pipeline according to claim 1 is characterized in that: The anti-friction layer is formed by connecting a number of snap rings in sequence, and each of the snap rings is provided with concave-convex structures at the upper and lower ends, and adjacent snap rings are fitted and plugged through the concave-convex structures.

3. The external anti-seepage reinforcement structure of the buried circulating water pipeline according to claim 2 is characterized in that: A plurality of the water stop rings are arranged at intervals between the outer wall of the steel pipe and the inner wall of the clamping ring.

4. The external anti-seepage reinforcement structure of the buried circulating water pipeline according to claim 3 is characterized in that: The water stop ring is a metal water stop ring.

5. The external anti-seepage reinforcement structure of the buried circulating water pipeline according to claim 1 is characterized in that: The anti-seepage base layer comprises a nano primer layer and a photocured nano sheet layer in sequence from the inside to the outside.

6. The external anti-seepage reinforcement structure of the buried circulating water pipeline according to claim 5 is characterized in that: The number of layers of the nano primer coating is 1, and the thickness of the single layer of the nano primer coating is 50um-150um.

7. The outer anti-seepage reinforcement structure of the buried circulating water pipeline according to claim 5 is characterized in that: The number of layers of the photocured nanosheet layer is 1, and the thickness of the single layer of the photocured nanosheet layer is 1000um-3000um.

8. The external anti-seepage reinforcement structure of the buried circulating water pipeline according to claim 1 is characterized in that: The anti-seepage coating comprises, from the inside to the outside, a first anti-seepage coating, a glass fiber cloth and a second anti-seepage coating.

9. The outer anti-seepage reinforcement structure of the buried circulating water pipeline according to claim 8, characterized in that: The first anti-seepage coating and the second anti-seepage coating are both made of epoxy resin coating.

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