Anti-deformation PPR pipe

Abstract

The utility model discloses an anti-deformation PPR pipe which comprises an outer pipe, and an inner pipe is coaxially arranged in an inner cavity of the outer pipe. A first supporting pipe is arranged on the inner wall of the outer pipe, and a second supporting pipe is arranged on the outer wall of the inner pipe. According to the PPR pipe, the first supporting pipe and the second supporting pipe which are coaxial are arranged between the outer pipe and the inner pipe, so that a dual-supporting structure is formed, external acting force is effectively dispersed, and the deformation resistance of the PPR pipe is remarkably enhanced; by means of the design, when the pipeline is subjected to external force, better shape stability can be kept, and the risks of deformation and damage are reduced; the first supporting pipe and the second supporting pipe are both made of metal materials, the reasonable pipe wall thickness is set, and the strength and rigidity of the supporting structure are ensured. Therefore, the PPR pipe can better adapt to complex and changeable construction environments and harsh use conditions, and has remarkable technical progress and practical value.

Description

Technical Field

[0001] The utility model relates to the technical field of PPR pipes, and particularly relates to an anti-deformation PPR pipe. Background Technique

[0002] PPR pipes, as the preferred materials for pipeline systems, their core charm stems from the extraordinary properties of the copolymer polypropylene material: excellent toughness, high-strength structural support, and unparalleled processing flexibility. This material can still exhibit excellent creep resistance under extreme temperature conditions, ensuring the long-term stable operation of the pipeline system. At the same time, its high transparency provides great convenience for pipeline maintenance and detection. Whether it is applied to cold water delivery systems or challenges the higher hot water circulation environment, PPR pipes have won wide market recognition with their excellent qualities of non-toxic environmental protection, light weight and high strength, pressure resistance and corrosion resistance, and have gradually become the new favorites in the field of building water supply and drainage, leading the trend of industry development.

[0003] However, despite the many advantages of PPR pipes, the existing pipes still lack sufficient anti-deformation ability when facing complex and changeable construction environments and strong external forces. Once exposed to strong external impacts or continuous pressures, the pipes are prone to deformation or even damage, which not only affects the overall performance of the pipeline system but also limits the application potential of PPR pipes in a wider range of fields. Therefore, how to enhance the anti-deformation ability of PPR pipes to meet the increasingly stringent construction requirements and processing environments has become an urgent technical problem to be solved. Summary of the Invention

[0004] The purpose of the utility model is to provide an anti-deformation PPR pipe to solve the problems put forward in the above background technique.

[0005] To achieve the above purpose, the utility model provides the following technical solutions:

[0006] An anti-deformation PPR pipe includes an outer pipe, and an inner pipe is coaxially arranged in the inner cavity of the outer pipe; a first support pipe is arranged on the inner wall of the outer pipe, a second support pipe is arranged on the outer wall of the inner pipe, and the first support pipe and the second support pipe are coaxially arranged.

[0007] Preferably, a flame-retardant rubber pipe is arranged between the first support pipe and the second support pipe, and the wall thickness of the flame-retardant rubber pipe is 150 - 450 μm.

[0008] Preferably, the first support pipe is made of a metal material, and the wall thickness of the first support pipe is 100 - 200 μm.

[0009] Preferably, the wall of the first support pipe is of a honeycomb structure.

[0010] Preferably, the second support pipe is made of a metal material, and the wall thickness of the second support pipe is 100-200 μm.

[0011] Preferably, the wall of the second support pipe has a grid-like structure, and a plurality of reinforcing ribs are provided on the wall of the second support pipe along its length direction.

[0012] Preferably, the outer wall of the outer pipe is coated with a wear-resistant layer, and the thickness of the wear-resistant layer is 200-300 μm.

[0013] Compared with the prior art, the beneficial effects of the present utility model are as follows: By arranging the first support pipe and the second support pipe with the same axis between the outer pipe and the inner pipe, a double support structure is formed, which effectively disperses the external acting force and significantly enhances the anti-deformation ability of the PPR pipe; this design enables the pipeline to maintain better shape stability when subjected to external forces, reducing the risk of deformation and damage; both the first support pipe and the second support pipe are made of metal materials, and reasonable wall thicknesses are set to ensure the strength and rigidity of the support structure; at the same time, the grid-like structure of the second support pipe combined with the reinforcing rib design further improves its structural strength, enabling the pipeline to withstand greater pressure without being easily deformed; adding a flame-retardant rubber pipe between the first support pipe and the second support pipe not only increases the heat insulation performance of the pipeline but also significantly improves its flame-retardant performance, ensuring a good flame-retardant effect and enhancing the safety of the pipeline in extreme situations such as fires; the wear-resistant layer coated on the outer wall of the outer pipe effectively improves the wear resistance of the pipeline, reduces damage caused by external friction or scratching, and extends the service life of the pipeline; comprehensively improves the anti-deformation ability, structural strength, flame-retardant performance and wear resistance of the PPR pipe, enabling it to better adapt to complex and changeable construction environments and harsh usage conditions, and having significant technological progress and practical value. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 is a schematic structural diagram of the present utility model;

[0015] Figure 2 is Figure 1 an enlarged schematic view of the structure at the position A shown;

[0016] Figure 3 is a schematic structural diagram of the first support pipe of the present utility model;

[0017] Figure 4 is a schematic structural diagram of the second support pipe of the present utility model.

[0018] Wherein: 1. Outer pipe; 2. Inner pipe; 3. First support pipe; 4. Second support pipe; 5. Flame-retardant rubber pipe; 6. Reinforcing rib; 7. Wear-resistant layer. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0019] The following further describes the present utility model in detail with reference to the accompanying drawings.

[0020] Please refer to Figures 1 to 4 , to achieve the above object, the present utility model provides the following technical solutions:

[0021] An anti-deformation PPR pipe, including an outer pipe 1, wherein an inner pipe 2 is coaxially arranged in the inner cavity of the outer pipe 1; a first support pipe 3 is provided on the inner wall of the outer pipe 1, wherein a second support pipe 4 is provided on the outer wall of the inner pipe 2, and the first support pipe 3 and the second support pipe 4 are coaxially arranged.

[0022] In the above-mentioned solution, the outer pipe 1 is the outermost layer of the pipe. The outer pipe 1 not only protects the internal support structure and the inner pipe 2, but also bears direct contact with the external environment. The outer pipe 1 is made of high-quality PPR material, ensuring the corrosion resistance and chemical stability of the pipe; the inner pipe 2 is located inside the outer pipe 1 and is coaxially arranged, which is the main fluid passage of the pipe system. The inner pipe 2 is also made of PPR material, having good hydraulic performance and sealing performance, ensuring the smooth and safe transmission of fluid; the first support pipe 3 is arranged on the inner wall of the outer pipe 1 and is coaxial with the inner pipe 2. The first support pipe 3 is made of high-strength and corrosion-resistant metal materials, such as stainless steel or aluminum alloy, to ensure its support effect and durability; the second support pipe 4 is arranged closely against the outer wall of the inner pipe 2 and is also coaxial with the inner pipe 2. The second support pipe 4 is also made of metal material; when the PPR pipe is subjected to external pressure or impact force, the first support pipe 3 and the second support pipe 4 jointly bear the load, and the external force is effectively dispersed through their high-strength support structure, so that the PPR pipe has excellent anti-deformation ability.

[0023] Please refer to Figure 1 , Figure 2 , as an embodiment of the present utility model, a flame-retardant rubber tube 5 is provided between the first support pipe 3 and the second support pipe 4, and the wall thickness of the flame-retardant rubber tube 5 is 150-450 μm.

[0024] In the above-mentioned solution, the main function of the flame-retardant rubber tube 5 is to improve the flame-retardant performance of the pipe. In case of fire or other high-temperature environments, the flame-retardant rubber tube 5 can effectively slow down the spread speed of the fire, providing additional safety protection for the pipe system. Its special flame-retardant formula makes the rubber tube not easy to burn at high temperatures, and even if it burns, it can quickly self-extinguish, thereby reducing the damage degree of the fire to the pipe system; in addition to the flame-retardant function, the flame-retardant rubber tube 5 also has a certain heat insulation and heat preservation effect. When the fluid temperature inside the pipe is relatively high, the flame-retardant rubber tube 5 can reduce the heat transfer to the external environment and keep the temperature inside the pipe relatively stable; this helps to reduce the deformation risk caused by thermal expansion and contraction of the pipe, and also helps to improve the energy efficiency of the pipe system.

[0025] Furthermore, the wall thickness of the flame-retardant rubber tube 5 is precisely controlled between 150 and 450 μm. This design not only takes into account the requirements of the flame-retardant effect but also takes into account the economy of the material and the processing performance. Therefore, through a reasonable wall thickness design, while ensuring the performance of the flame-retardant rubber tube 5, the cost-effectiveness can be maximized. The flame-retardant rubber tube 5 is located between the first support tube 3 and the second support tube 4 and is closely attached to both of them. This design enables the flame-retardant rubber tube 5 to fully exert its flame-retardant and heat-insulating functions, and at the same time, jointly bear the support and protection functions of the pipeline with the first support tube 3 and the second support tube 4. Under the action of external pressure or impact force, the first support tube 3 and the second support tube 4 provide the main structural support, while the flame-retardant rubber tube 5 absorbs part of the energy through its elasticity and toughness, reducing the risk of pipeline deformation and damage.

[0026] Please refer to Figure 3 , as an embodiment of the present utility model, the first support tube 3 is made of a metal material, wherein the wall thickness of the first support tube 3 is 100 to 200 μm, and the wall of the first support tube 3 is a honeycomb structure.

[0027] In the above-mentioned scheme, the first support tube 3 is made of a high-strength and corrosion-resistant metal material, such as stainless steel or aluminum alloy, to ensure its support effect and durability, providing a solid support foundation for the first support tube 3. The thickness of the first support tube 3 is 100 to 200 μm, so that the wall of the first support tube 3 not only maintains sufficient strength to resist external pressure and impact force but also avoids material waste and increased processing difficulty caused by excessive thickness. This design enables the first support tube 3 to play an effective support role in the pipeline system, preventing the pipeline from deforming or being damaged due to external forces.

[0028] Furthermore, the wall of the first support tube 3 is a honeycomb structure. The honeycomb structure realizes the lightweight of the support tube by reducing the material usage, greatly reducing the overall weight of the pipeline. Although the material usage is reduced, the honeycomb structure distributes the force to the entire first support tube 3 through its unique geometric shape, thereby maintaining high strength and rigidity. This structure enables the first support tube 3 to better resist deformation when subjected to external pressure. The good heat conduction performance of the metal material combined with the ventilation of the honeycomb structure helps the rapid dissipation of heat inside the pipeline, reducing the risk of deformation caused by thermal expansion and contraction and improving the operating stability of the pipeline system.

[0029] Please refer to Figure 4 , as an embodiment of the present utility model, the second support tube 4 is made of a metal material, wherein the wall thickness of the second support tube 4 is 100 to 200 μm. The wall of the second support tube 4 is a grid structure, and a plurality of reinforcing ribs 6 are provided along the length direction of the wall of the second support tube 4.

[0030] In the above-described solution, the second support pipe 4 is made of a high-strength and corrosion-resistant metal material, such as stainless steel or aluminum alloy, to ensure that it has high strength and rigidity and can withstand various pressures and impact forces from inside and outside the pipe; the wall thickness of the second support pipe 4 is 100 - 200 μm, so that the second support pipe 4 not only maintains sufficient strength but also avoids excessive use of materials, achieving a lightweight design; the wall of the second support pipe 4 is a grid-like structure. By reducing the use of unnecessary materials, the weight of the second support pipe 4 is significantly reduced. This not only reduces the overall mass of the pipe system but also improves the material utilization efficiency and reduces costs; while maintaining lightweight, the grid-like structure enhances the strength and rigidity of the second support pipe 4 through its unique geometric shape. This structure enables the second support pipe 4 to better disperse stress when subjected to external forces, reducing the risk of deformation and damage.

[0031] Furthermore, along the length direction of the wall of the second support pipe 4, a number of reinforcing ribs 6 are provided. The reinforcing ribs 6 provide additional support at specific positions of the support pipe, enhancing the local strength of these areas, which helps prevent local deformation or damage of the pipe when subjected to concentrated loads; at the same time, the arrangement of the reinforcing ribs 6 is carefully designed to optimize the stress distribution inside the second support pipe 4. The reinforcing ribs 6 disperse the stress that might otherwise concentrate at a certain point to a larger area, reducing the risk of stress concentration; through the reinforcement effect of the reinforcing ribs 6, the overall stability of the second support pipe 4 is improved; this enables the pipe system to maintain a stable operating state when facing complex and variable working conditions, providing strong support and protection for the PPR pipe.

[0032] Please refer to Figure 1 , as an embodiment of the present utility model, a wear-resistant layer 7 is coated on the outer wall of the outer pipe 1, and the thickness of the wear-resistant layer 7 is 200 - 300 μm.

[0033] In the above-described solution, the main function of the wear-resistant layer 7 is to enhance the wear resistance of the outer wall of the outer pipe 1 and prevent pipe damage caused by external friction, scratching, or abrasion, which is particularly important for pipe systems operating in harsh environments, such as industrial transportation, building water supply and drainage, etc.; the wear-resistant layer 7, as the first line of defense of the outer pipe 1, can effectively resist the impact and abrasion of external objects, protecting the internal structure of the pipe and the fluid from damage; by reducing the impact of external wear on the pipe, the wear-resistant layer 7 can significantly extend the service life of the pipe system and reduce maintenance and replacement costs.

[0034] Furthermore, the material of the wear-resistant layer 7 is usually selected from polymer materials or special alloys, which have excellent wear resistance, corrosion resistance and chemical stability. The specific material selection depends on the operating environment of the pipeline system, the properties of the fluid and cost considerations; the thickness of the wear-resistant layer 7 is designed to be 200-300 μm, and the thickness of the wear-resistant layer 7 should also be determined according to the use environment of the pipeline system. An appropriate thickness can ensure the smooth progress of the coating process while ensuring the uniformity and adhesion of the coating; the wear-resistant layer 7 coated on the outer wall of the outer pipe 1 plays an important role in the PPR pipe. It provides a strong guarantee for the stable operation of the pipeline system by improving wear resistance, protecting the pipeline and extending the service life, etc.

[0035] Although the specific embodiments of the present invention have been described above, those skilled in the art should understand that these are only examples. The protection scope of the present invention is defined by the appended claims. Without departing from the principle and essence of the present invention, those skilled in the art can make various changes or modifications to these embodiments, but these changes and modifications all fall within the protection scope of the present invention.

Claims

1. A deformation-resistant PPR pipe, comprising an outer pipe (1), wherein an inner pipe (2) is coaxially arranged in the inner cavity of the outer pipe (1); characterized in that, The inner wall of the outer tube (1) is provided with a first support tube (3), and the outer wall of the inner tube (2) is provided with a second support tube (4), and the first support tube (3) and the second support tube (4) are coaxially arranged.

2. The anti-deformation PPR pipe according to claim 1, characterized in that, A flame-retardant rubber tube (5) is provided between the first support tube (3) and the second support tube (4), and the wall thickness of the flame-retardant rubber tube (5) is 150 - 450 μm.

3. The anti-deformation PPR pipe according to claim 1, wherein The first support tube (3) is made of a metal material, and the wall thickness of the first support tube (3) is 100 - 200 μm.

4. The anti-deformation PPR pipe according to claim 3, characterized in that, The tube wall of the first support tube (3) is of a honeycomb structure.

5. The anti-deformation PPR pipe according to claim 1, wherein The second support tube (4) is made of a metal material, and the wall thickness of the second support tube (4) is 100 - 200 μm.

6. The anti-deformation PPR pipe according to claim 5, wherein The tube wall of the second support tube (4) is of a grid-like structure, and a plurality of reinforcing ribs (6) are arranged along the length direction of the tube wall of the second support tube (4).

7. The anti-deformation PPR pipe according to claim 1, characterized in that, The outer wall of the outer tube (1) is coated with a wear-resistant layer (7), and the thickness of the wear-resistant layer (7) is 200 - 300 μm.

Images