Dredging wear-resistant pipeline for desilting ship

Abstract

The utility model belongs to the technical field of dredging pipelines, and particularly relates to a dredging wear-resistant pipeline for a desilting ship, which comprises a pipeline body, and the inner wall and the outer wall of the pipeline body are respectively coated with an inner reinforcing coating and an outer reinforcing coating. The inner reinforcing coating comprises a base layer fixedly bonded to the inner wall of the pipeline body, a reinforcing layer fixedly bonded to the inner wall of the base layer, an anti-seepage layer fixedly bonded to the inner wall of the reinforcing layer, a transition layer fixedly bonded to the inner wall of the anti-seepage layer, a first adhesive layer fixedly bonded to the inner wall of the transition layer, and a second adhesive layer fixedly bonded to the inner wall of the first adhesive layer. The inner wall coating and the outer wall coating are made of nano composite materials, and nano aluminum oxide and nano silicon carbide particles in the nano composite materials are uniformly dispersed in an epoxy resin matrix, so that a coating with excellent wear resistance and corrosion resistance is formed; the coating can remarkably prolong the service life of the pipeline and reduce the maintenance and replacement frequency caused by abrasion and corrosion, so that the long-term operation cost is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of dredging pipelines, in particular to a dredging wear-resistant pipeline for a dredging ship. Background Art

[0002] In dredging projects, dredging wear-resistant pipes for dredging vessels are key components, which are responsible for transporting materials such as silt on the seabed or riverbed to designated areas. However, traditional dredging wear-resistant pipes have some limitations, especially in terms of wear resistance, corrosion resistance, and performance in extreme environments.

[0003] First, conventional pipelines are usually made of ordinary steel or alloy materials, which are susceptible to wear and corrosion during long-term dredging operations, resulting in a shortened service life of the pipelines, requiring frequent maintenance and replacement, and increasing operating costs. Second, dredging operations are often carried out under high pressure and high flow rates, which requires pipelines to have sufficient strength and rigidity to resist these external forces. However, conventional pipelines may experience structural deformation or even rupture under these conditions, affecting the stability and safety of the operation.

[0004] Finally, in low temperature environments, the flexibility and sealing of traditional pipes will be affected, and they are prone to rupture or leakage due to temperature changes. This is particularly prominent in dredging operations in cold areas. For this reason, we provide a dredging wear-resistant pipe for dredging ships. Utility Model Content

[0005] In order to solve the above problems, the utility model proposes a dredging wear-resistant pipe for a dredging ship, so as to more accurately solve the problems raised in the above background technology.

[0006] The utility model is realized by the following technical solutions:

[0007] The utility model provides a dredging wear-resistant pipe for a dredging ship, comprising a pipe body, wherein the inner and outer walls of the pipe body are coated with an inner reinforcement coating and an outer reinforcement coating respectively;

[0008] The inner reinforcement coating includes a base layer fixedly bonded to the inner wall of the pipe body, the inner wall of the base layer is fixedly bonded with a reinforcement layer, the inner wall of the reinforcement layer is fixedly bonded with an anti-seepage layer, the inner wall of the anti-seepage layer is fixedly bonded with a transition layer, the inner wall of the transition layer is fixedly bonded with an adhesive layer 1, and the inner wall of the adhesive layer 1 is fixedly bonded with an inner wear-resistant layer.

[0009] Furthermore, the outer reinforcement coating includes a pressure-resistant layer fixedly bonded to the periphery of the pipe body, a low-temperature resistant layer fixedly bonded to the periphery of the pressure-resistant layer, an adhesive layer 2 fixedly bonded to the periphery of the low-temperature resistant layer, and an outer wear-resistant layer fixedly bonded to the periphery of the adhesive layer 2.

[0010] Furthermore, the inner and outer wall coatings of the pipeline body are made of a nano-composite material having excellent wear resistance and corrosion resistance. The uniform dispersion and surface modification of nanoparticles significantly improve the service life and maintenance efficiency of the pipeline.

[0011] Furthermore, the reinforcing layer in the inner reinforcement coating is made of high-performance carbon fiber material, which has the characteristics of high strength, light weight and high modulus, effectively improving the tensile strength and overall rigidity of the pipeline body, ensuring structural stability during high-pressure and high-flow rate dredging operations.

[0012] Furthermore, the low-temperature resistant layer in the outer reinforcement coating is made of a multi-layer composite rubber material, which has good low-temperature toughness and crack resistance, can maintain the flexibility and sealing of the pipeline in an extremely low-temperature environment, and prevent the pipeline from rupturing due to temperature changes.

[0013] Furthermore, the adhesive layer 1 and the adhesive layer 2 adopt a new environmentally friendly solvent-free adhesive, which has high bonding strength, low volatility and good environmental adaptability, which not only reduces environmental pollution during the construction process, but also improves the durability and anti-aging performance of the coating.

[0014] Beneficial effects of the utility model:

[0015] The utility model adopts a nano-composite material as the inner and outer wall coatings. Nano-aluminum oxide and nano-silicon carbide particles in the material are evenly dispersed in an epoxy resin matrix to form a coating with excellent wear resistance and corrosion resistance. This coating can significantly increase the service life of the pipeline, reduce the maintenance and replacement frequency caused by wear and corrosion, and thus reduce long-term operating costs.

[0016] The utility model uses a high-performance carbon fiber reinforcement layer and a multi-layer composite rubber low-temperature resistant layer to ensure that the pipeline body maintains structural stability during high-pressure and high-flow rate dredging operations, while still maintaining flexibility and sealing in extreme low-temperature environments. This design not only improves the operating performance of the pipeline under harsh working conditions, but also improves the safety of the pipeline and reduces potential risks caused by environmental changes. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic diagram of the structural layers of a pipeline in one embodiment of the utility model;

[0018] Figure 2 This is a schematic diagram of the structural layers of the reinforcement coating in one embodiment of the utility model;

[0019] Figure 3 This is a schematic diagram of the structural layers of the external reinforcement coating in one embodiment of the utility model.

[0020] In the figure: 1. Pipe body; 2. Inner reinforcement coating; 21. Base layer; 22. Reinforcement layer; 23. Anti-seepage layer; 24. Transition layer; 25. Adhesive layer 1; 26. Inner wear-resistant layer; 3. Outer reinforcement coating; 31. Pressure-resistant layer; 32. Low-temperature resistant layer; 33. Adhesive layer 2; 34. Outer wear-resistant layer. DETAILED DESCRIPTION

[0021] In order to more clearly and completely illustrate the technical solution of the present invention, the present invention is further described below in conjunction with the accompanying drawings.

[0022] Example

[0023] like Figure 1-Figure 3 As shown, an embodiment of the utility model proposes a dredging wear-resistant pipe for a dredging ship, wherein the pipe body 1 is made of high-strength alloy steel, and the inner and outer walls are coated with an inner reinforcement coating 2 and an outer reinforcement coating 3 respectively. The inner reinforcement coating 2 is composed of a base layer 21, a reinforcement layer 22, an impermeable layer 23, a transition layer 24, an adhesive layer 25 and an inner wear-resistant layer 26, and each layer is firmly bonded by a special adhesive. The base layer 21 is made of epoxy resin material, the reinforcement layer 22 is made of glass fiber, the impermeable layer 23 is made of polytetrafluoroethylene material, the transition layer 24 is made of flexible rubber material, the adhesive layer 25 is made of polyurethane adhesive, and the inner wear-resistant layer 26 is made of a polymer material reinforced with silicon carbide particles.

[0024] The outer reinforcement coating 3 is composed of a pressure-resistant layer 31, a low-temperature resistant layer 32, a second adhesive layer 33 and an outer wear-resistant layer 34. The pressure-resistant layer 31 is made of high-strength polyethylene material, the low-temperature resistant layer 32 is made of special synthetic rubber, the second adhesive layer 33 is made of epoxy resin adhesive, and the outer wear-resistant layer 34 is made of polymer material reinforced with aluminum oxide particles. The selection and combination of these materials are intended to improve the performance of the pipeline under high pressure and low temperature environments.

[0025] Furthermore, the inner and outer wall coatings of the pipeline body 1 are made of a nanocomposite material, which is composed of nanoaluminum oxide and nanosilicon carbide particles uniformly dispersed in an epoxy resin matrix. Through surface modification and optimized dispersion technology, a good interface bonding is formed between the nanoparticles and the matrix material, thereby significantly improving the wear resistance and corrosion resistance of the pipeline.

[0026] The reinforcing layer 22 in the inner reinforcement coating 2 is made of high-performance carbon fiber material, which is woven into a mesh structure and bonded to the base layer 21 by a special adhesive. The high strength and light weight of carbon fiber effectively improve the tensile strength and overall rigidity of the pipeline body 1, ensuring the stability of the pipeline in high-pressure dredging operations.

[0027] Furthermore, the low temperature resistant layer 32 in the outer reinforcement coating 3 is made of a multi-layer composite rubber material, including alternating layers of nitrile rubber and chloroprene rubber. This multi-layer structure design improves the low temperature toughness and crack resistance of the rubber, so that the pipeline still maintains good flexibility and sealing in a low temperature environment.

[0028] The adhesive layer 1 25 and the adhesive layer 2 33 are made of a new type of environmentally friendly solvent-free adhesive, which is composed of a high molecular weight polymer and a cross-linking agent, does not require the use of solvents, and reduces the emission of volatile organic compounds during the construction process. The high bonding strength and good environmental adaptability of the adhesive ensure the durability and anti-aging performance of the coating.

[0029] Finally, it should be noted that the basic concepts have been described above. Obviously, for those skilled in the art, the above detailed disclosure is only an example and does not constitute a limitation of this specification. Although it is not explicitly stated here, those skilled in the art may make various modifications, improvements and corrections to this specification. Such modifications, improvements and corrections are suggested in this specification, so such modifications, improvements and corrections still belong to the spirit and scope of the exemplary embodiments of this specification. At the same time, this specification uses specific words to describe the embodiments of this specification. For example, "one embodiment", "one embodiment", and / or "some embodiments" refer to a certain feature, structure or characteristic related to at least one embodiment of this specification. Therefore, it should be emphasized and noted that "one embodiment" or "one embodiment" or "an alternative embodiment" mentioned twice or more in different positions in this specification does not necessarily refer to the same embodiment. In addition, certain features, structures or characteristics in one or more embodiments of this specification can be appropriately combined. In addition, unless explicitly stated in the claims, the order of processing elements and sequences described in this specification, the use of alphanumeric characters, or the use of other names are not used to limit the order of the processes and methods of this specification.

[0030] Finally, it should be noted that the above description is only a preferred embodiment of the utility model and is not intended to limit the utility model. Although the utility model is described in detail with reference to the above embodiments, those skilled in the art can still modify the technical solutions recorded in the above embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A dredging wear-resistant pipe for a dredging vessel, comprising a pipe body (1), characterized in that: The inner and outer walls of the pipeline body (1) are coated with an inner reinforcement coating (2) and an outer reinforcement coating (3) respectively; The inner reinforcement coating (2) comprises a base layer (21) fixedly bonded to the inner wall of the pipe body (1), the inner wall of the base layer (21) is fixedly bonded with a reinforcement layer (22), the inner wall of the reinforcement layer (22) is fixedly bonded with an anti-seepage layer (23), the inner wall of the anti-seepage layer (23) is fixedly bonded with a transition layer (24), the inner wall of the transition layer (24) is fixedly bonded with an adhesive layer 1 (25), and the inner wall of the adhesive layer 1 (25) is fixedly bonded with an inner wear-resistant layer (26).

2. The wear-resistant dredging pipe for dredging vessels according to claim 1, characterized in that: The outer reinforcement coating (3) comprises a pressure-resistant layer (31) fixedly bonded to the periphery of the pipeline body (1), a low-temperature resistant layer (32) fixedly bonded to the periphery of the pressure-resistant layer (31), a second adhesive layer (33) fixedly bonded to the periphery of the low-temperature resistant layer (32), and an outer wear-resistant layer (34) fixedly bonded to the periphery of the second adhesive layer (33).

3. The wear-resistant dredging pipe for dredging vessels according to claim 1, characterized in that: The inner and outer wall coatings of the pipeline body (1) are made of nano-composite materials.

4. The wear-resistant dredging pipe for dredging vessels according to claim 1, characterized in that: The reinforcing layer (22) in the inner reinforcement coating (2) is made of high-performance carbon fiber material.

5. The wear-resistant dredging pipe for dredging vessels according to claim 2, characterized in that: The low temperature resistant layer (32) in the outer reinforcement coating (3) is made of a multi-layer composite rubber material.

6. A dredging wear-resistant pipe for a dredging ship according to claim 1 or 2, characterized in that: The adhesive layer 1 (25) and the adhesive layer 2 (33) are made of environmentally friendly solvent-free adhesive.

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