High-strength anti-corrosion antibacterial polyethylene pipeline

Abstract

The invention relates to the technical field of pipeline production, and discloses a high-strength anti-corrosion antibacterial polyethylene pipeline which comprises an outermost reinforcing layer and a fixing net fixedly connected in the reinforcing layer. The framework layer is fixedly connected to the fixed net; the lower interlayer is fixedly connected to the framework layer; the inner layer is fixedly connected to the lower interlayer; the pipeline is of an integral composite structure and cannot be detached. The pressure resistance and impact resistance of the pipeline are remarkably improved by using the mixture of the ultra-high molecular weight polyethylene and the resin, excellent structural stability is provided for the pipeline through the fixing net and the hard framework, the overall rigidity of the pipeline is improved, the shape of the pipeline can be kept, and the service life of the pipeline is prolonged. The inner layer of the anti-bacterial and anti-scale structure is designed to prevent deformation caused by soil movement or pressure change in the underground or severe environment, scale and dirt in the pipeline are reduced through the anti-bacterial and anti-scale design of the inner layer, the pipeline can be kept clean, the high flow speed and pressure can be kept, and the maintenance problem caused by pipeline blockage is avoided.

Description

Technical Field

[0001] The invention relates to the technical field of pipeline production, and more specifically to a high-strength anticorrosive and antibacterial polyethylene pipeline. Background Art

[0002] Polyethylene pipe (PE pipe) is a pipe made of polyethylene resin with excellent chemical corrosion resistance, wear resistance and flexibility. It is widely used in urban tap water pipe network systems, urban and rural drinking water pipelines, chemical, chemical fiber, food, forestry, printing and dyeing, pharmaceutical, light industry, papermaking, metallurgy and other industries. Liquid transportation pipelines, as well as agricultural irrigation pipelines, postal and telecommunications lines, power wire protection casings and mining mortar transportation pipelines.

[0003] Although traditional polyethylene pipes have been widely used in many fields, they also have some disadvantages. For example, traditional polyethylene pipes have poor corrosion resistance and are not suitable for pipeline systems in acidic or alkaline environments. In addition, their strength and rigidity are relatively low, and they may deform or rupture when subjected to high pressure or heavy loads, or break after being bent. These disadvantages limit the application scope and effect of traditional polyethylene pipes to a certain extent. With the acceleration of urbanization and the continuous development of infrastructure construction, the demand for polyethylene pipes is also increasing, and people are paying more and more attention to the antibacterial, corrosion resistance, mechanical properties, service life and comprehensive economic performance of pipeline systems.

[0004] In order to solve the above problems, a higher strength polyethylene pipe is needed to improve the antibacterial and anti-corrosion properties, mechanical properties and other properties of the pipe through multi-layer composite materials. Summary of the invention

[0005] In order to overcome the above-mentioned defects of the prior art, the present invention provides a high-strength anti-corrosion and antibacterial polyethylene pipe to solve the problems existing in the above-mentioned background technology.

[0006] The present invention provides the following technical solution: a high-strength anticorrosive and antibacterial polyethylene pipe, comprising an outermost reinforcement layer, characterized in that it also comprises a fixed net fixedly connected to the reinforcement layer; The skeleton layer is fixedly connected to the fixed net; The lower partition layer is fixedly connected to the frame layer; The inner layer is fixedly connected to the lower compartment; The pipeline is an integral composite structure and cannot be disassembled.

[0007] Preferably, the reinforcing layer is a mixture of ultra-high molecular weight polyethylene and resin, the outer wall is coated with epoxy resin, and nano silicon particles are evenly dispersed in the reinforcing layer.

[0008] Preferably, the fixed net is a mesh structure with a wire diameter of 1.0-1.2 mm, the mesh holes are rectangular, and is located between the reinforcement layer and the lower partition layer and fixedly connected to the skeleton layer.

[0009] Preferably, the skeleton layer includes skeleton terminals fixedly connected to the reinforcing layer and the two ends of the fixed net, a female end groove opened on the skeleton terminal, a male end convex ring fixedly connected to the skeleton terminal, a fixed interface fixedly connected to the skeleton terminal, and a hard skeleton fixedly connected to the skeleton terminal.

[0010] Preferably, the lower partition layer separates the skeleton layer and the inner layer, the lower partition layer has a dense structure and does not participate in providing the mechanical properties of the pipeline, the outer wall of the lower partition layer is a rough surface, and the inner wall is a smooth surface.

[0011] Preferably, the inner layer is coated on the inner wall of the lower partition layer, and the inner layer is a nano silver-loaded antibacterial coating, and an antiscalant and an antiseptic coating are added at the same time.

[0012] Preferably, the hard skeleton is a mesh structure with a mesh wire diameter of 2-4 mm, and the mesh holes are diamond-shaped.

[0013] Preferably, the hard skeleton is tangent to the inner wall of the fixed net and the outer wall of the lower partition layer, and the gap formed is filled with carbon fibers.

[0014] Technical effects and advantages of the present invention: 1. The present invention significantly improves the pressure resistance and impact resistance of the pipeline by using ultra-high molecular weight polyethylene and resin mixture. The fixed net and hard skeleton provide the pipeline with excellent structural stability, increase the overall rigidity of the pipeline, and help maintain the shape of the pipeline to prevent deformation due to soil movement or pressure changes in underground or harsh environments.

[0015] 2. The present invention has a strong antibacterial effect through the inner layer of the nano silver-loaded antibacterial coating, which keeps the internal environment of the pipeline clean and hygienic, helps to keep the transportation of drinking water or other fluids with high hygiene requirements clean, and the added antiscalant and preservative coating can effectively prevent scaling and corrosion inside the pipeline, reduce the deposition of pollutants such as scale and rust, extend the service life of the pipeline, and maintain its flow capacity.

[0016] 3. The present invention has good chemical stability through polymers such as polyethyleneimine and polyurethane, and can resist the erosion of various chemical media, which helps the pipeline to maintain stable performance when transporting highly corrosive fluids, reducing maintenance requirements and potential safety risks. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a partial cross-sectional view of the overall structure of the present invention; Figure 2 It is an exploded view of each component of the present invention; Figure 3 It is a half-section diagram of the overall structure of the present invention; Figure 4 for Figure 3 Enlarged view of part A in the middle; Figure 5 for Figure 3 Enlarged view of part B.

[0018] The figures are marked as follows: 1. reinforcement layer; 2. fixing net; 3. skeleton layer; 31. female end groove; 32. skeleton terminal; 33. fixing interface; 34. male end convex ring; 35. hard skeleton; 4. lower partition layer; 5. inner layer. DETAILED DESCRIPTION

[0019] The technical solution of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the present invention. In addition, the forms of the various structures described in the following embodiments are merely illustrative. The high-strength anticorrosive and antibacterial polyethylene pipe involved in the present invention is not limited to the various structures described in the following embodiments. All other embodiments obtained by ordinary technicians in this field without making creative work belong to the scope of protection of the present invention.

[0020] Reference Figure 1-5 The present invention provides a high-strength anti-corrosion and antibacterial polyethylene pipe, including an outermost reinforcement layer 1, and also includes a fixed net 2 fixedly connected to the reinforcement layer 1; a skeleton layer 3, fixedly connected to the fixed net 2; a lower partition layer 4, fixedly connected to the skeleton layer 3; an inner layer 5, fixedly connected to the lower partition layer 4; the pipe is an integral composite structure and cannot be disassembled.

[0021] Specifically, although traditional polyethylene pipes have been widely used in some engineering fields, they have some problems, such as weak structural strength, poor corrosion resistance and unsatisfactory antibacterial effect. After long-term use, traditional polyethylene pipes will break, the inner layer 5 will be corroded, and dirt will adhere to and accumulate. Especially in the food field, such problems will seriously affect the safety of food quality. Therefore, the requirements for polyethylene pipes in today's society are gradually increasing. Polyethylene pipes made of multi-layer structures and composite materials are becoming more and more popular due to their more comprehensive performance.

[0022] Reference Figure 1-2 The reinforcing layer 1 is a mixture of ultra-high molecular weight polyethylene and resin, the outer wall is coated with epoxy resin, and nano-silicon particles are evenly dispersed in the reinforcing layer 1.

[0023] Specifically, ultra-high molecular weight polyethylene is a linear polyethylene material with extremely high molecular weight. Its molecular weight is usually between 1.5 million and 6 million, and can even reach 10 million. Ultra-high molecular weight polyethylene has excellent wear resistance, which is the most outstanding among all plastics, even exceeding some metal materials. In addition, it also has extremely high impact resistance, self-lubrication and chemical corrosion resistance.

[0024] The reinforcement layer 1 is made of ultra-high molecular weight polyethylene, which utilizes the excellent properties of ultra-high molecular weight polyethylene, such as high wear resistance, impact absorption capacity and good chemical stability. The resin mixture serves as an adhesive, which not only fixes the structure of the ultra-high molecular weight polyethylene, but also increases the toughness and bearing capacity of the material. Nano-silicon particles, due to their nano-scale particle size, can effectively fill the microscopic gaps between the ultra-high molecular weight polyethylene and the resin, thereby improving the sealing and mechanical strength of the finished product, especially in resisting the expansion of tiny cracks.

[0025] Epoxy resin covers the outermost layer to form a solid protective film. This layer of epoxy resin not only enhances the chemical corrosion resistance of the pipe, but also effectively protects the internal structure from the influence of the external environment and extends the service life of the overall material.

[0026] Through this multi-level, multi-component distribution design, the advantages of ultra-high molecular weight polyethylene and other auxiliary materials can be fully utilized to achieve efficient protection and long-term durability of the pipeline reinforcement layer 1.

[0027] Reference Figure 4-5 The fixed net 2 is a mesh structure with a wire diameter of 1.0-1.2 mm, and the mesh holes are rectangular. It is located between the reinforcement layer 1 and the lower partition layer 4 and is fixedly connected to the skeleton layer 3.

[0028] Specifically, the fixed net 2 is a wire mesh made of fine steel wire with a diameter of 1.2 mm, and the mesh is rectangular. The fixed net 2 is arranged on the reinforcement layer 1, which can enhance the pressure resistance, tensile strength and puncture resistance of the pipeline; the fixed net 2 can effectively improve the overall pressure bearing capacity of the pipeline, so that the pipeline can withstand higher internal pressure. In urban gas pipelines, this feature is particularly important, because gas pipelines usually have to withstand a certain pressure. The presence of the fixed net 2 can effectively prevent the pipeline from rupturing due to excessive internal pressure; the fixed net 2 can significantly enhance the impact resistance and puncture resistance of the pipeline. When the pipeline is hit by external force or punctured by hard objects, the fixed net 2 can disperse the impact force and reduce pipeline damage.

[0029] Reference Figure 4-5The skeleton layer 3 includes a skeleton terminal 32 fixedly connected to both ends of the reinforcement layer 1 and the fixed net 2, a female end groove 31 opened on the skeleton terminal 32, a male end convex ring 34 fixedly connected to the skeleton terminal 32, a fixed interface 33 fixedly connected to the skeleton terminal 32, and a hard skeleton 35 fixedly connected to the skeleton terminal 32; the hard skeleton 35 is a mesh structure with a mesh wire diameter of 2-4mm, and the mesh is diamond-shaped.

[0030] Specifically, the skeleton layer 3 is the most important force-bearing structure in the entire pipeline. The hard skeleton 35 is high-carbon steel with a mesh diameter of 3 mm. It is quenched and tempered to form a martensitic structure with high hardness and good bending resistance. It can strengthen the pipeline when it is subjected to external forces and reduce damage caused by bending.

[0031] Among them, the hard skeleton 35 is tangent to the inner wall of the fixed net 2 and the outer wall of the lower partition 4, and the gap formed is filled with carbon fiber. The carbon fiber is added by wet mixing. The fixed net 2 and the hard skeleton 35 are compounded with the carbon fiber together. The high strength and tensile and compressive resistance of the carbon fiber are compounded with the hardness and bending resistance of high-carbon steel, so that the pipeline has stronger mechanical properties and can be competent for more complex usage scenarios.

[0032] The skeleton terminals 32 are the two ends of the pipeline. The skeleton terminals 32 can be used to fix the structures of different layers to prevent separation. The fixed interface 33 fixes and controls the spacing between the hard skeleton 35 and the fixed net 2. The male end convex ring 34 and the female end groove 31 can be mortise-jointed to extend the length of the pipeline. The strength of the mortise-joint is not high, but it can facilitate simple fixation by construction workers, which is convenient for subsequent pipeline laying and fixed connection.

[0033] Reference Figure 2-5 The lower partition layer 4 separates the skeleton layer 3 and the inner layer 5. The lower partition layer 4 has a dense structure and does not participate in providing the mechanical properties of the pipeline. The outer wall of the lower partition layer 4 is a rough surface and the inner wall is a smooth surface.

[0034] Specifically, the lower partition layer 4 separates the high carbon steel and carbon fiber of the skeleton layer 3 from the inner layer 5 to prevent water molecules or other substances from entering the skeleton layer 3 and corroding the skeleton layer 3. The lower partition layer 4 is a polymer such as polyethyleneimine (PEI) and polyurethane (PU), and a dense coating is formed by process means. The outer wall is in contact with the unpolished carbon fiber layer and has a rough surface. The inner wall is polished and has a smooth surface, so that the lower partition layer 4 is tightly connected to the carbon fiber and will not fall off. The inner wall is smooth, which is convenient for connection with the inner layer 5.

[0035] Reference Figure 2-5 The inner layer 5 is coated on the inner wall of the lower partition layer 4, and the inner layer 5 is a nano silver-loaded antibacterial coating, and an antiscalant and an antiseptic coating are added at the same time.

[0036] Specifically, nano antibacterial agents such as metallic silver or metallic gold are added to the inner layer 5 to effectively inhibit bacterial growth, and the carbon fiber is surface modified using active silver ions, and then the modified carbon fiber is melt-blended with high-density polyethylene and extruded. This method combines the antibacterial properties of silver ions with the high strength of carbon fibers, significantly improving the mechanical strength and antibacterial properties of the pipeline.

[0037] In order to prevent scaling on the pipeline surface from affecting the flow capacity and sanitary performance, anti-scaling agents and preservatives are added to the inner layer 5. These additives can effectively reduce the dirt deposition on the pipeline surface and extend the service life of the pipeline. In actual applications, after adding the anti-scaling agent, the scaling on the pipeline surface is significantly reduced, and the maintenance cost of the pipeline in long-term use is greatly reduced. This is especially important for industrial pipeline systems that require long-term stable operation.

[0038] During use, the use of ultra-high molecular weight polyethylene and resin mixture significantly improves the pressure resistance and impact resistance of the pipeline. The fixed net 2 and the hard skeleton 35 provide the pipeline with excellent structural stability, increase the overall rigidity of the pipeline, and help maintain the shape of the pipeline to prevent deformation due to soil movement or pressure changes underground or in harsh environments.

[0039] The nano silver-loaded antibacterial coating of the inner layer 5 has a strong antibacterial effect, which keeps the internal environment of the pipeline clean and hygienic, and helps to keep the transportation of drinking water or other fluids with high hygiene requirements clean. The added antiscalant and antiseptic coating can effectively prevent scaling and corrosion inside the pipeline, reduce the deposition of pollutants such as scale and rust, extend the service life of the pipeline, and maintain its flow capacity.

[0040] Polymers such as polyethyleneimine and polyurethane have good chemical stability and can resist corrosion from a variety of chemical media, helping pipelines maintain stable performance when transporting highly corrosive fluids, reducing maintenance requirements and potential safety risks.

[0041] Finally, a few points should be explained: First, in the description of this application, it should be noted that, unless otherwise specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, which may refer to mechanical connection or electrical connection, or internal communication between two components, or direct connection. "upper", "lower", "left", "right", etc. are only used to indicate relative positional relationships. When the absolute position of the object being described changes, the relative positional relationship may change; Secondly: In the drawings of the embodiments disclosed in the present invention, only the structures related to the embodiments disclosed in the present invention are involved, and other structures can refer to the general design. In the absence of conflict, the same embodiment and different embodiments of the present invention can be combined with each other; Finally: The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A high-strength anti-corrosion and antibacterial polyethylene pipe, comprising an outermost reinforcement layer (1), characterized in that: It also includes a fixing net (2) fixedly connected to the reinforcing layer (1); A skeleton layer (3) fixedly connected to the fixed net (2); A lower partition layer (4) fixedly connected to the skeleton layer (3); An inner layer (5) fixedly connected to the lower compartment layer (4); The pipeline is an integral composite structure and cannot be disassembled.

2. The high-strength anticorrosive and antibacterial polyethylene pipe according to claim 1 is characterized in that: The reinforcing layer (1) is a mixture of ultra-high molecular weight polyethylene and resin, the outer wall is coated with epoxy resin, and nano silicon particles are evenly dispersed in the reinforcing layer (1).

3. The high-strength anticorrosive and antibacterial polyethylene pipe according to claim 2, characterized in that: The fixed net (2) is a mesh structure with a mesh wire diameter of 1.0-1.2 mm, and the mesh holes are rectangular. It is located between the reinforcement layer (1) and the lower partition layer (4), and is fixedly connected to the skeleton layer (3).

4. The high-strength anticorrosive and antibacterial polyethylene pipe according to claim 3 is characterized in that: The skeleton layer (3) comprises a skeleton terminal (32) fixedly connected to both ends of the reinforcement layer (1) and the fixed net (2), a female end groove (31) provided on the skeleton terminal (32), a male end convex ring (34) fixedly connected to the skeleton terminal (32), a fixed interface (33) fixedly connected to the skeleton terminal (32), and a hard skeleton (35) fixedly connected to the skeleton terminal (32).

5. The high-strength anticorrosive and antibacterial polyethylene pipe according to claim 4 is characterized in that: The lower partition layer (4) separates the skeleton layer (3) and the inner layer (5); the lower partition layer (4) has a dense structure and does not contribute to providing mechanical properties of the pipeline; the outer wall of the lower partition layer (4) is a rough surface, and the inner wall is a smooth surface.

6. The high-strength anticorrosive and antibacterial polyethylene pipe according to claim 5 is characterized in that: The inner layer (5) is coated on the inner wall of the lower partition layer (4), and the inner layer (5) is a nano silver-loaded antibacterial coating, and an antiscalant and an antiseptic coating are also added.

7. The high-strength anticorrosive and antibacterial polyethylene pipe according to claim 6 is characterized in that: The hard skeleton (35) is a mesh structure with a mesh wire diameter of 2-4 mm, and the mesh holes are diamond-shaped.

8. The high-strength anticorrosive and antibacterial polyethylene pipe according to claim 7 is characterized in that: The hard skeleton (35) is tangent to the inner wall of the fixed net (2) and the outer wall of the lower partition (4), and the gap formed is filled with carbon fibers.

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