PE composite pipe with reinforcing structure

Abstract

The utility model relates to a PE composite pipe with a reinforcing structure. The PE composite pipe comprises an inner pipe, a middle pipe and an outer pipe, the middle pipe is arranged between the inner pipe and the outer pipe, and gaps are reserved between the middle pipe and the inner pipe and between the middle pipe and the outer pipe; a plurality of supporting pieces are installed between the inner pipe and the middle pipe, and every two adjacent supporting pieces are connected with each other. According to the PE composite pipe with the reinforcing structure, through the gap design among the inner pipe, the middle pipe and the outer pipe and the supporting structure of the supporting piece and the supporting pipe, the pipe can bear larger internal pressure and external extrusion, compared with a traditional single-layer or simple multi-layer pipe, the compression resistance of the composite pipe is remarkably improved, and in practical application, the PE composite pipe has the advantages of being simple in structure and convenient to use. And engineering scenes such as municipal water supply and drainage which need to bear higher pressure can be better met, the situations of breakage and leakage of the pipeline due to overhigh pressure are reduced, and the safety and reliability of a pipeline system are improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to PE composite pipe technical field, specifically is a kind of PE composite pipe with reinforcing structure. BACKGROUND

[0002] In today's various engineering construction fields, as the key carrier for conveying liquid, gas and other substances, the performance of pipeline system is directly related to the safety, stability and durability of the project. The polyethylene (PE) composite pipe, with its excellent corrosion resistance, good flexibility and relatively convenient installation characteristics, is widely used in many scenes such as municipal water supply, drainage engineering, farmland irrigation system and chemical material transportation.

[0003] In the field of municipal water supply and drainage, traditional metal pipes are easily corroded by acid and alkali substances in water, resulting in shortened service life and greatly increased maintenance cost, and there is a risk of water pollution. The PE composite pipe can effectively avoid these problems, and its chemical properties are stable and will not react with the conveying medium, which can ensure the purity of water. However, with the acceleration of urban modernization construction, the water supply and drainage system is facing higher pressure and complex working conditions. In the reconstruction of old urban water supply pipe network, higher water pressure needs to be withstood, and the strength of traditional PE composite pipe cannot meet the requirements, and pipe explosion often occurs, which seriously affects the normal operation of residents' life and city.

[0004] In the field of agricultural irrigation, traditional concrete pipes are heavy and difficult to construct, and are easily broken due to soil settlement. Although the PE composite pipe is light and easy to install, it is easily scratched and extruded by sharp objects in the soil during long-term buried use, resulting in pipe wall wear and tear, perforation, affecting irrigation efficiency and system stability.

[0005] The PE composite pipe on the market is mostly a simple multi-layer structure, and there is a lack of effective support and cooperation mechanism between the layers. When the pipe is subjected to external pressure or internal medium pressure fluctuation, relative displacement and debonding may occur between the layers, which reduces the overall structural strength of the pipe. Moreover, in order to improve the wear resistance and pressure resistance of the pipe, the existing technology mostly adopts the method of increasing the thickness of the pipe wall, which not only increases the material cost, but also reduces the flexibility of the pipe and increases the installation difficulty. UTILITY MODEL CONTENTS

[0006] In view of the deficiencies of the prior art, the utility model provides a PE composite pipe with reinforcing structure to solve the problems raised in the background art.

[0007] To achieve the above purpose, the utility model provides the following technical scheme: a PE composite pipe with reinforcing structure, comprising an inner pipe, a middle pipe and an outer pipe.

[0008] The middle tube is arranged between the inner tube and the outer tube, and gaps are reserved between the inner tube, the middle tube and the outer tube;

[0009] A plurality of support members are arranged between the inner tube and the middle tube, and adjacent two support members are connected with each other, and a support tube is arranged between the middle tube and the outer tube.

[0010] The shape of the cross section of the upper end of the support tube is a regular hexagon.

[0011] Further, the shape of the cross section of the upper end of the support member is a semi-circular ring.

[0012] Further, the support member is made of elastic metal material.

[0013] Further, the outer peripheral surface of the support tube and the middle tube are combined to form six triangular cavities.

[0014] Further, the six edges of the support tube are connected with the inner peripheral wall of the outer tube, respectively.

[0015] Further, a buffer layer is filled between the support tube and the outer tube.

[0016] Further, the buffer layer is an elastic rubber layer.

[0017] Further, the support tube is made of high-density polyethylene material.

[0018] Further, a plurality of wear-resistant ribs are arranged outside the outer tube.

[0019] Any one of the wear-resistant ribs is arranged outside the outer tube in a spiral shape, and a plurality of the wear-resistant ribs are arranged outside the outer tube in a ring array.

[0020] Further, the wear-resistant rib is made of nitrile rubber.

[0021] Compared with the prior art, the technical scheme of the present application has the following beneficial effects:

[0022] 1. The PE composite pipe with a reinforcing structure can withstand greater internal pressure and external extrusion through the gap design between the inner tube, the middle tube and the outer tube, and the support structure of the support member and the support tube. Compared with traditional single-layer or simple multi-layer pipes, the compression resistance of the composite pipe is significantly improved. In actual application, it can better meet the needs of municipal water supply, drainage and other engineering scenarios that need to withstand high pressure, reduce the occurrence of pipe rupture and leakage due to excessive pressure, and improve the safety and reliability of the pipe system.

[0023] 2、The PE composite pipe with the reinforcing structure, the support network formed by the mutual connection of the support members and the regular hexagonal structure of the support pipe make the connection between the layers of the pipe more stable and less prone to relative displacement or delamination. The stable structure design ensures the performance stability of the pipe during long-term use, prolongs the service life of the pipe, maintains good structural performance whether in buried laying, overhead installation or use in a vibrating environment, and reduces maintenance costs and replacement frequency. BRIEF DESCRIPTION OF DRAWINGS

[0024] Fig. 1 It is a structural schematic diagram of the utility model;

[0025] Fig. 2 It is a split structural schematic diagram of the utility model;

[0026] Fig. 3 It is a top view structural schematic diagram of the utility model.

[0027] In the figure: 1, inner pipe; 2, middle pipe; 3, outer pipe; 4, support member; 5, support pipe; 6, cavity; 7, buffer layer; 8, wear-resistant rib. DETAILED DESCRIPTION

[0028] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the utility model.

[0029] Please refer to Figs. 1-3 The PE composite pipe with the reinforcing structure in the embodiment is used to increase the strength of the PE composite pipe and thus increase the service life of the PE composite pipe.

[0030] Specifically, it comprises an inner pipe 1, a middle pipe 2 and an outer pipe 3. The middle pipe 2 is arranged between the inner pipe 1 and the outer pipe 3, and gaps are reserved between the middle pipe 2 and the inner pipe 1 and the outer pipe 3.

[0031] A plurality of support members 4 are installed between the inner pipe 1 and the middle pipe 2, and adjacent two support members 4 are connected to each other. A support pipe 5 is assembled between the middle pipe 2 and the outer pipe 3. The shape of the cross section of the upper end of the support pipe 5 is a regular hexagon.

[0032] In actual settings, several supports 4 are installed between the inner tube 1 and the middle tube 2, and adjacent supports 4 are connected to each other to form a stable support network. These supports 4 can support the inner tube 1 and the middle tube 2 to prevent them from deforming under pressure. When the pipeline is subjected to external pressure or internal pressure fluctuations, the supports 4 can disperse the pressure through their elastic deformation and uniformly transmit the pressure to the entire support network.

[0033] Further, the support tube 5 between the middle tube 2 and the outer tube 3 has a hexagonal cross-section at the upper end, which has high stability. The hexagonal support tube 5 cooperates with the middle tube 2 and the outer tube 3 to further enhance the overall structural strength of the pipeline. Under pressure, the support tube 5 can disperse the pressure to each edge and corner, making the force on each part of the pipeline more uniform and improving the pipeline's pressure resistance.

[0034] Further, adjacent two supports 4 are connected and made of elastic metal material, and the upper end has a semicircular cross-section. Multiple supports 4 are connected to form a network, which can uniformly support the inner tube 1 and the middle tube 2.

[0035] In actual settings, when the pipeline is subjected to external pressure or internal pressure fluctuations, the elastic metal material of the support 4 can elastically deform to absorb part of the stress, preventing the inner tube 1 and the middle tube 2 from deforming and rupturing due to pressure. During pipeline laying, if local ground subsidence causes extrusion, the support 4 can disperse the pressure by deforming itself to protect the inner tube 1 and the middle tube 2.

[0036] Preferably, the upper end of the support tube 5 has a hexagonal cross-section, and the inner wall and the outer circumferential surface of the middle tube 2 form six triangular cavities 6, and the six corners are connected to the inner circumferential wall of the outer tube 3.

[0037] In actual settings, the hexagonal support tube 5 has a stable structure, and the triangular cavities 6 further enhance the stability of the support structure. The mechanical stability of the triangle enables the support tube 5 to better withstand external and internal pressure. The connection of the support tube 5 and the outer tube 3 forms a whole support structure of the outer tube 3, the support tube 5 and the middle tube 2, effectively improving the pipeline's pressure resistance. In buried pipelines, it can resist soil extrusion and prevent pipeline deformation.

[0038] It should be noted that the support tube 5 is made of high-density polyethylene material. High-density polyethylene has high strength and rigidity, which can provide reliable support for the composite pipe. The support tube 5 is not prone to deformation when subjected to external pressure, effectively maintaining the structural stability of the composite pipe. When buried and laid, it can resist soil extrusion and ensure normal operation of the pipeline system. Moreover, HDPE also has good toughness, which can absorb a certain impact force to prevent the support tube 5 from breaking due to external impact, ensuring the integrity of the pipeline.

[0039] In addition, a buffer layer 7 made of elastic rubber is filled between the support pipe 5 and the outer pipe 3.

[0040] When the pipeline is subjected to external impact or vibration, the buffer layer 7 can absorb energy and reduce damage to the outer pipe 3 and the support pipe 5. During construction, the pipeline is subjected to stone impact, and the buffer layer 7 can buffer the impact force to avoid direct damage to the outer pipe 3, and also prevent the support pipe 5 from deforming due to excessive impact force, thereby ensuring the integrity of the pipeline structure.

[0041] Preferably, a plurality of wear-resistant ribs 8 are arranged on the outer side of the outer pipe 3; any one of the wear-resistant ribs 8 is arranged in a spiral shape on the outer side of the outer pipe 3, the plurality of wear-resistant ribs 8 are arranged in a ring array on the outer side of the outer pipe 3, and the wear-resistant ribs 8 are made of nitrile rubber.

[0042] In actual arrangement, the spiral wear-resistant rib 8 can effectively resist friction in different directions during pipeline laying and use. When the pipeline is dragged along the ground, the spiral wear-resistant rib 8 can provide wear-resistant protection at various angles, and the ring array of wear-resistant ribs 8 enhances the overall wear resistance of the outer pipe 3. Under the long-term erosion of soil particles, the wear-resistant rib 8 can reduce the wear of the outer pipe 3 and prolong the service life of the pipeline.

[0043] The working principle of the above embodiment is as follows:

[0044] (1) A plurality of support members 4 are arranged between the inner pipe 1 and the middle pipe 2, and adjacent support members 4 are connected to each other to form a stable support network. These support members 4 can support the inner pipe 1 and the middle pipe 2 to prevent them from deforming under pressure. When the pipeline is subjected to external pressure or internal pressure fluctuation, the support members 4 can disperse the pressure by elastic deformation, and uniformly transmit the pressure to the entire support network. The support pipe 5 between the middle pipe 2 and the outer pipe 3 has a hexagonal cross section at the upper end. This structure has high stability. The hexagonal support pipe 5 cooperates with the middle pipe 2 and the outer pipe 3 to further enhance the overall structural strength of the pipeline. Under pressure, the support pipe 5 can disperse the pressure to each edge and corner, so that the force on each part of the pipeline is more uniform, thereby improving the pressure resistance of the pipeline.

[0045] (2) When the pipeline is extruded from outside or the internal pressure fluctuates, the support 4 made of elastic metal material can be elastically deformed to absorb part of the stress, preventing the inner pipe 1 and the middle pipe 2 from being deformed and broken due to the pressure, and if extrusion caused by local ground subsidence is encountered during pipeline laying, the support 4 can disperse the pressure by deforming itself to protect the inner pipe 1 and the middle pipe 2, the support pipe 5 is made of high-density polyethylene material, high-density polyethylene has high strength and rigidity, which can provide reliable support for the composite pipe, so that the support pipe 5 is not easy to deform when bearing external pressure, effectively maintaining the structural stability of the composite pipe, and when buried and laid, it can resist the extrusion of the soil to ensure the normal operation of the pipeline system, and HDPE also has good toughness, which can absorb a certain impact force to prevent the support pipe 5 from being broken due to external impact, and ensure the integrity of the pipeline.

[0046] It should be noted that the relational terms herein such as first and second and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any such actual relationship or order between such entities or actions. Moreover, the terms "comprises", "comprising", or any other variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but can include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element preceded by "comprises... a" does not, without more constraints, foreclose the existence of additional identical elements in the process, method, article, or apparatus that comprises the recited element.

[0047] Although the embodiments of the present application have been shown and described, it is to be understood that various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the present application, and the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. A PE composite pipe having a reinforcing structure, characterized by: It comprises an inner tube (1), a middle tube (2) and an outer tube (3); The middle tube (2) is arranged between the inner tube (1) and the outer tube (3), and gaps are reserved between the middle tube (2) and the inner tube (1) and the outer tube (3); A plurality of support pieces (4) are arranged between the inner tube (1) and the middle tube (2), and adjacent two support pieces (4) are connected with each other, and a support tube (5) is arranged between the middle tube (2) and the outer tube (3); The shape of the cross section of the upper end of the support tube (5) is a regular hexagon.

2. The PE composite pipe with reinforced structure according to claim 1, characterized in that: The shape of the cross section of the upper end of the support piece (4) is a semicircular ring.

3. The PE composite pipe with reinforced structure according to claim 2, characterized in that: The support piece (4) is made of elastic metal material.

4. The PE composite pipe with reinforced structure according to claim 1, characterized in that: The outer circumferential surface of the support tube (5) and the middle tube (2) are combined to form six triangular cavities (6).

5. The PE composite pipe with reinforced structure according to claim 4, characterized in that: Six edges of the support tube (5) are connected with the inner circumferential wall of the outer tube (3).

6. The PE composite pipe with reinforced structure according to claim 4, characterized in that: A buffer layer (7) is filled between the support tube (5) and the outer tube (3).

7. The PE composite pipe with reinforced structure according to claim 6, characterized in that: The buffer layer (7) is an elastic rubber layer.

8. The PE composite pipe with reinforced structure according to claim 6, characterized in that: The support tube (5) is made of high-density polyethylene material.

9. The PE composite pipe with reinforced structure according to claim 1, characterized in that: A plurality of wear-resistant ribs (8) are arranged outside the outer tube (3). Any one of the wear-resistant ribs (8) is arranged in a spiral shape outside the outer tube (3), and a plurality of wear-resistant ribs (8) are arranged in a ring array outside the outer tube (3).

10. The PE composite pipe with reinforced structure according to claim 9, characterized in that: The wear-resistant rib (8) is made of nitrile rubber.

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