Enhanced PE pipe

Abstract

The utility model relates to the technical field of PE pipes, and discloses a reinforced PE pipe which comprises a PE inner layer and a PE outer structural layer, and the PE inner layer is located in the PE outer structural layer. The anti-corrosion PE pipe is characterized in that an anti-corrosion layer is arranged on the inner wall of the PE inner layer, and the outer wall of the PE inner layer is sequentially connected with a first framework layer and a second framework layer; the outer wall of the first framework layer and the inner wall of the second framework layer are respectively connected with a first elastic buffer bulge and a second elastic buffer bulge; the inner wall of the PE outer structure layer is provided with an anti-ultraviolet structure layer tightly connected with the second framework layer. The reinforced PE pipe can be rapidly compressed when encountering strong pressure, extrusion force borne by the outer wall is effectively relieved, and therefore the pipeline is protected against damage.

Description

TECHNICAL FIELD

[0001] The utility model relates to PE pipe technical field especially is related to a reinforced PE pipe. BACKGROUND

[0002] At present, with the continuous advancement of urbanization, PE pipes used on buildings can be seen everywhere, and the demand is gradually increasing. However, these PE pipes need to withstand environmental factors, and long-term exposure to sunlight and chemicals may accelerate their aging process.

[0003] A patent with the patent number CN202022416730.3 discloses a sunscreen PE pipe fitting, which comprises a PE pipe and a connecting sleeve. The PE pipe is provided with external threads at both ends, and the connecting sleeve is internally provided with internal thread holes that are adapted to the external threads. The PE pipe is threadedly connected inside the connecting sleeve. The outer side of the PE pipe is provided with two layers of annular heat sinks and a sunscreen layer. The sunscreen layer is arranged at the outermost layer, and the two layers of annular heat sinks are installed between the PE pipe and the sunscreen layer from inside to outside. A partition block is arranged between the PE pipe and the annular heat sink, and between the annular heat sink and the sunscreen layer. The above design solves the problem of accelerated aging of PE pipes due to exposure to sunlight to some extent. However, the above design still has some shortcomings. The PE pipe as a skeleton has low compression resistance and weak load-bearing capacity. In the application scenario of high-pressure fluid or large-flow fluid, its performance may be slightly insufficient, and it is prone to rupture. UTILITY MODEL CONTENT

[0004] To solve the above-mentioned problems in the prior art, the utility model provides a reinforced PE pipe. The reinforced PE pipe can relieve the extrusion force on the outer wall when encountering strong pressure, and can also protect the pipeline from breaking when colliding.

[0005] To achieve the above-mentioned purpose, the utility model adopts the following scheme:

[0006] A reinforced PE pipe comprises a PE inner layer and a PE outer structural layer, and the PE inner layer is located in the PE outer structural layer. The inner wall of the PE inner layer is provided with a corrosion-resistant layer, and the outer wall of the PE inner layer is sequentially connected with a first skeleton layer and a second skeleton layer. The outer wall of the first skeleton layer and the inner wall of the second skeleton layer are respectively connected with a first elastic buffer protrusion and a second elastic buffer protrusion. The inner wall of the PE outer structural layer is provided with an ultraviolet-resistant structural layer closely connected with the second skeleton layer.

[0007] Further, the first elastic buffer protrusion and the second elastic buffer protrusion are both in the shape of a semicircular cylinder or a rectangular cylinder.

[0008] Further, the first elastic buffer protrusion is internally provided with a first deformation groove; and the second elastic buffer protrusion is internally provided with a second deformation groove.

[0009] Still further, the number of the first elastic buffer protrusions and the number of the second elastic buffer protrusions are both several, and the first elastic buffer protrusions and the second elastic buffer protrusions are arranged in a staggered manner.

[0010] Still further, the first elastic buffer protrusions and the second elastic buffer protrusions are both made of rubber material with high elasticity.

[0011] Further, the material of the corrosion-resistant layer is polyvinylidene fluoride or epoxy resin.

[0012] Further, the first skeleton layer and the second skeleton layer are both skeleton structure layers made of glass fiber.

[0013] Further, the anti-ultraviolet structure layer is a structure layer with high-density polyethylene material as a base skeleton, and a plurality of black master batches and a plurality of anti-ultraviolet particles are filled in the base skeleton.

[0014] Still further, the PE outer structure layer is a structure layer made of a mixture of glass fiber or carbon fiber material and PE material.

[0015] Compared with the prior art, the utility model has the advantages of the following:

[0016] The utility model discloses a corrosion-resistant layer, a PE inner layer, a first skeleton layer, a second skeleton layer, a PE outer structure layer and an anti-ultraviolet structure layer are combined, the corrosion-resistant layer is additionally arranged in the PE pipe inner layer, effectively slows down the corrosion problem that can be produced due to long -term contact various chemical substances, greatly prolongs the service life of pipeline. Meanwhile, aiming at the problem that the fluid in the pipeline is easily damaged to the pipe wall, adopts the first skeleton layer and the second skeleton layer, and the tensile resistance and the strength are greatly improved. Especially, the opposite side between the first skeleton layer and the second skeleton layer is respectively provided with the first elastic buffer protrusion and the second elastic buffer protrusion, these elastic buffer protrusions are like " buffer air bag " in the inside of the pipeline, can compress when meeting strong pressure, effectively relieve the extrusion force that the outer wall receives, thereby protecting the pipeline from damage. Even in the case of accidental collision, these elastic buffer protrusions can also play excellent energy absorption and buffering effect, ensure the integrity of the pipeline structure, avoid the occurrence of pipeline rupture accident. In addition, the anti-ultraviolet layer is additionally arranged to improve the thermal performance in view of the performance decline of the PE pipe after being exposed to sunlight. BRIEF DESCRIPTION OF DRAWINGS

[0017] The application will be further described in detail below in combination with the drawings and specific embodiments.

[0018] Fig. 1 It is the staggered disassembly of the reinforced PE pipe of the utility model and shows a three-dimensional structure.

[0019] Fig. 2 This is a three-dimensional structural diagram of the reinforced PE pipe of this utility model.

[0020] Fig. 3 This is a three-dimensional structural diagram of the first elastic buffer protrusion on the first skeleton layer of this utility model.

[0021] Fig. 4 This is a three-dimensional structural diagram of the second elastic buffer protrusion on the second skeleton layer of this utility model.

[0022] The image includes:

[0023] Corrosion-resistant layer 1, PE inner layer 2, first skeleton layer 3, second skeleton layer 4, UV-resistant structural layer 5, PE outer structural layer 6, first elastic buffer protrusion 7, second elastic buffer protrusion 8. Detailed Implementation

[0024] The specific embodiments of this utility model will be described in further detail below with reference to the accompanying drawings and examples. The following examples are used to illustrate this utility model, but are not intended to limit its scope.

[0025] like Figs. 1 to 4 As shown, a reinforced PE pipe, specifically a rupture-resistant reinforced PE pipe, is described. PE pipe is also known as polyethylene pipe. This reinforced PE pipe includes an inner PE layer 2 and an outer PE structural layer 6, with the inner PE layer 2 located within the outer PE structural layer 6. The inner wall of the inner PE layer 2 is characterized by a corrosion-resistant layer 1, and the outer wall of the inner PE layer 2 is sequentially connected to a first skeleton layer 3 and a second skeleton layer 4. The outer wall of the first skeleton layer 3 and the inner wall of the second skeleton layer 4 are respectively connected to a first elastic buffer protrusion 7 and a second elastic buffer protrusion 8. Both the first elastic buffer protrusion 7 and the second elastic buffer protrusion 8 are structures used for support, connection, and buffering, effectively enhancing the pressure resistance of the PE pipe. The inner wall of the outer PE structural layer 6 is provided with an anti-ultraviolet structural layer 5, which is immediately connected to the second skeleton layer 4.

[0026] This reinforced PE pipe combines a corrosion-resistant layer 1, an inner PE layer 2, a first reinforcing layer 3, a second reinforcing layer 4, an outer PE structural layer 6, and an anti-UV structural layer 5. The inner PE layer 2 is additionally equipped with an anti-corrosion layer, effectively mitigating corrosion problems that may occur due to long-term contact with various chemicals, significantly extending the pipe's service life. Simultaneously, addressing the issue of high fluid pressure easily damaging the pipe wall, the first reinforcing layer 3 and the second reinforcing layer 4 significantly improve tensile strength and overall strength. In particular, the opposite sides of the first and second reinforcing layers 3 and 4 are respectively equipped with a first elastic buffer protrusion 7 and a second elastic buffer protrusion 8. These elastic buffer protrusions act like "buffer airbags" inside the pipe, rapidly compressing under high pressure to effectively alleviate the compressive stress on the outer wall, thus protecting the pipe from damage. Even in the event of accidental collisions, these elastic buffer protrusions provide excellent energy absorption and cushioning, ensuring the integrity of the pipe structure and preventing pipe rupture accidents. Furthermore, to address the performance degradation of PE pipes after sun exposure, an anti-UV layer is added to improve thermal performance.

[0027] In this embodiment, the corrosion-resistant layer 1 provided inside the PE inner layer 2 is made of polyvinylidene fluoride or epoxy resin. It is added to the inside of the PE inner layer 2 using coating technology. These coatings have excellent corrosion resistance and can effectively protect the inside of the pipe from chemical corrosion.

[0028] Both the first skeleton layer 3 and the second skeleton layer 4 are structural layers with glass fiber as the skeleton. A cavity is formed between the first skeleton layer 3 and the second skeleton layer 4. A first elastic buffer protrusion 7 and a second elastic buffer protrusion 8 are respectively connected to opposite sides of the first skeleton layer 3 and the second skeleton layer 4. The first elastic buffer protrusion 7 and the second elastic buffer protrusion 8 are both semi-cylindrical or rectangular prisms, with a simple structure and convenient design and production. Of course, other shapes of protrusions are also possible, as long as they can achieve the function of buffering and resisting pressure. For example, the first elastic buffer protrusion 7 and the second elastic buffer protrusion 8 are preferably trapezoidal prisms, with the area of ​​the bottom surface of the first elastic buffer trapezoidal prism connected to the first skeleton layer 3 being larger than the area of ​​the opposite top surface. The first elastic buffer protrusion 7 and the second elastic buffer protrusion 8 are staggered, with the area of ​​the bottom surface of the second elastic buffer protrusion 8 connected to the second skeleton layer 4 being larger than the area of ​​the opposite top surface. The first elastic buffer protrusion 7 has a first deformation groove, and the second elastic buffer protrusion 8 has a second deformation groove. By setting the first deformation groove and the second deformation groove, deformation cavities are formed in the first elastic buffer protrusion 7 and the second elastic buffer protrusion 8, which helps to accelerate the deformation of both, thereby achieving a good buffering effect. When encountering strong pressure, it can be quickly compressed, effectively relieving the squeezing pressure on the outer wall, thus protecting the pipeline from damage.

[0029] An anti-UV structural layer 5 is provided on the inner side of the PE outer structural layer 6, and the anti-UV structural layer 5 is tightly connected to the second skeleton layer 4. The anti-UV structural layer 5 is a structural layer with high-density polyethylene material as the base skeleton, and several black masterbatches and several anti-UV particles filled in the base skeleton, which has a good sun protection effect. The PE outer structural layer 6 is a structural layer made of glass fiber or carbon fiber and PE material. These reinforcing materials can improve the strength and stiffness of the PE outer structural layer 6, making it more resistant to impact and scratches.

[0030] If the liquid inside the PE pipe contains chemicals, prolonged contact will corrode the inner wall of the PE pipe, leading to rupture and leakage of the chemical-containing liquid. Therefore, the PE pipe inner layer 2 provided by this invention has an anti-corrosion layer, which can effectively slow down the corrosion of the PE pipe by the chemicals in the discharged liquid. When the liquid pressure inside the PE pipe is too high, it will squeeze the pipe wall. Prolonged squeezing will also damage the pipe wall, easily leading to rupture and leakage. Based on the fluid flow and the stress on the pipe, the reinforced PE pipe provided by this invention provides a double-layer skeleton layer made of glass fiber, significantly improving the tensile strength and overall strength of the PE pipe. Meanwhile, a first elastic buffer protrusion 7 and a second elastic buffer protrusion 8 are respectively connected to the opposite side of the first skeleton layer 3 and the second skeleton layer 4. When a sudden strong pressure occurs in the liquid flow inside the PE pipe, squeezing the inner wall of the PE pipe, the inner wall is compressed, causing the first elastic buffer protrusion 7 to compress. The compression of the first elastic buffer protrusion 7 reduces the squeezing force on the inner wall of the PE pipe. When the squeezing force disappears, the first elastic buffer protrusion 7 quickly rebounds and maintains its original shape. When an external object collides with the PE pipe, the strong impact force acts on the outer layer of the PE pipe and the second skeleton layer 4, compressing the second elastic buffer protrusion 8 on the second skeleton layer 4. The compression of the second elastic buffer protrusion 8 reduces the squeezing force on the outer wall of the PE pipe, thus protecting the entire PE pipe to a certain extent and preventing pipe rupture. Furthermore, since many PE pipes are exposed to the sun before or after use in daily life, the performance of PE pipes in high-temperature environments may be affected, leading to a reduction in their strength and durability. Therefore, the PE pipe of this utility model also provides an anti-ultraviolet layer, improving the thermal performance of the PE pipe.

[0031] It is understood that this utility model has been described through some embodiments, and those skilled in the art will recognize that various changes or equivalent substitutions can be made to these features and embodiments without departing from the spirit and scope of this utility model. Furthermore, under the teachings of this utility model, these features and embodiments can be modified to adapt to specific situations and materials without departing from the spirit and scope of this utility model. Therefore, this utility model is not limited to the specific embodiments disclosed herein, and all embodiments falling within the scope of the claims of this application are protected by this utility model.

Claims

1. A reinforced PE pipe, comprising an inner PE layer and an outer PE structural layer, wherein the inner PE layer is located within the outer PE structural layer; characterized in that, A corrosion-resistant layer is provided on the inner wall of the PE inner layer, and a first skeleton layer and a second skeleton layer are sequentially connected to the outer wall of the PE inner layer; a first elastic buffer protrusion and a second elastic buffer protrusion are respectively connected to the outer wall of the first skeleton layer and the inner wall of the second skeleton layer; an anti-ultraviolet structural layer is provided on the inner wall of the PE outer structural layer, which is closely connected to the second skeleton layer.

2. The reinforced PE pipe according to claim 1, characterized in that, Both the first elastic buffer protrusion and the second elastic buffer protrusion are semi-cylindrical or rectangular cylindrical in shape.

3. The reinforced PE pipe according to claim 1 or 2, characterized in that, The first elastic buffer protrusion has a first deformation groove; the second elastic buffer protrusion has a second deformation groove.

4. The reinforced PE pipe according to claim 1 or 2, characterized in that, There are several of the first elastic buffer protrusions and several of the second elastic buffer protrusions, and the first elastic buffer protrusions and the second elastic buffer protrusions are staggered.

5. The reinforced PE pipe according to claim 1, characterized in that, Both the first and second elastic buffer protrusions are made of highly elastic rubber material.

6. The reinforced PE pipe according to claim 1, characterized in that, The corrosion-resistant layer is made of polyvinylidene fluoride or epoxy resin.

7. The reinforced PE pipe according to claim 1, characterized in that, Both the first and second skeleton layers are skeleton structural layers made of glass fiber.

8. The reinforced PE pipe according to claim 1, characterized in that, The UV-resistant structural layer is a structural layer with high-density polyethylene material as the base skeleton, and several black masterbatches and several UV-resistant particles filled in the base skeleton.

9. The reinforced PE pipe according to claim 1, characterized in that, The outer PE structural layer is a structural layer made of a mixture of PE material and materials such as glass fiber or carbon fiber.

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