Corrosion-resistant long aluminum pipe

Abstract

The utility model relates to the technical field of aluminum alloy pipeline production, in particular to a corrosion-resistant long aluminum pipe which comprises a pipe body, the pipe body comprises an outer pipe and an inner pipe, the inner diameter of the outer pipe is larger than the outer diameter of the inner pipe, the outer pipe is made of seven-series aluminum alloy, and the inner pipe is made of three-series aluminum alloy. The two kinds of aluminum alloy enable the aluminum pipe to resist erosion of external corrosion factors in the long-time using process, four compression-resistant columns are arranged in the cavity and located in the upper direction, the lower direction, the left direction and the right direction respectively, and each compression-resistant column is connected with the outer side of the inner pipe and the inner side of the outer pipe, plays a supporting and reinforcing role and shares pressure applied by the outside. A cavity is arranged between the outer pipe and the inner pipe, the cavity is of a hollow structure, and a compression-resistant column is arranged in the cavity, the stability and durability of the pipeline in a severe environment are greatly improved, meanwhile, through the good damping and corrosion-resistant design, long-term stable operation is guaranteed, and the maintenance cost and the equipment replacement frequency are reduced.

Description

Technical Field

[0001] This utility model relates to the field of aluminum alloy pipe production technology, specifically a corrosion-resistant long aluminum pipe. Background Technology

[0002] Aluminum tubes are widely used in construction, transportation, and industrial equipment due to their lightweight, high strength, and good processing performance. However, with the increasing complexity of the operating environment, the shortcomings of traditional aluminum tubes in terms of corrosion resistance and seismic performance have gradually become apparent, especially under working conditions of high salinity, high humidity, or high vibration, where their service life and stability are difficult to meet the requirements.

[0003] Aluminum tubes are typically produced using a zinc spraying process to form a zinc layer on their surface to improve corrosion resistance. However, this method has significant drawbacks: the zinc layer is prone to oxidation or peeling during long-term use, exposing the pipe substrate and further accelerating corrosion; moreover, the zinc spraying process requires high precision, especially in the manufacture of long aluminum tubes, where uneven coating and other quality issues are easily encountered. Furthermore, traditional zinc-sprayed aluminum tubes lack effective vibration damping structures, leading to accelerated fatigue, structural loosening, and even fracture under mechanical vibration or dynamic loads. This phenomenon is particularly pronounced in high-vibration environments, such as rail transportation systems, industrial machinery, and marine engineering, where vibration transmission can damage pipes and connecting components, potentially causing equipment downtime or failure, ultimately resulting in pipe damage. Therefore, we propose a corrosion-resistant and vibration-resistant long aluminum tube. Utility Model Content

[0004] The purpose of this invention is to provide a corrosion-resistant long aluminum tube to solve the problems mentioned in the background art.

[0005] To solve the above-mentioned technical problems, this utility model provides the following technical solution:

[0006] A corrosion-resistant long aluminum tube includes a tube body, characterized in that: the tube body includes an outer tube and an inner tube, the inner diameter of the outer tube is larger than the outer diameter of the inner tube; the outer tube is made of 7-series aluminum alloy, and the inner tube is made of 3-series aluminum alloy.

[0007] Preferably, a cavity is provided between the outer tube and the inner tube, and the cavity has a hollow structure.

[0008] Preferably, the cavity is provided with four pressure-resistant columns.

[0009] Preferably, the pressure-resistant columns are located in the upper, lower, left, and right positions within the cavity, and each pressure-resistant column is connected to the outer side of the inner tube and the inner side of the outer tube. The connection between the pressure-resistant columns and the inner and outer tubes is by welding.

[0010] Preferably, the pressure-resistant columns are evenly and symmetrically distributed inside the pipe.

[0011] Preferably, the spaces between the compression-resistant columns are filled with elastic rubber.

[0012] Preferably, the elastic rubber has good elasticity and shock absorption properties, and can effectively absorb external vibration and impact forces.

[0013] Preferably, the inner wall of the inner tube is uniformly coated with an inner anti-corrosion layer, and the outer surface of the outer tube is uniformly coated with an outer anti-corrosion layer.

[0014] Compared with the prior art, the beneficial effects achieved by this utility model are as follows: By using 7-series and 3-series aluminum alloys, this utility model significantly improves the corrosion resistance of the pipeline. The design of the cavity and pressure-resistant column increases the compressive strength of the pipeline, effectively disperses external pressure, and prevents pipeline deformation. The filling with elastic rubber significantly enhances the shock absorption effect, effectively reducing damage to the pipeline from external vibrations and extending its service life. The dual protection of the inner and outer anti-corrosion layers effectively prevents corrosion of the media inside and outside the pipeline, ensuring the continuity of corrosion resistance. It can effectively prevent shock and corrosion, and improve the service life of the pipeline. Attached Figure Description

[0015] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings:

[0016] Figure 1 This is a schematic diagram of the overall structure of a corrosion-resistant long aluminum tube according to this utility model;

[0017] Figure 2 This is a partial structural schematic diagram of a corrosion-resistant long aluminum tube according to this utility model.

[0018] The numbers in the diagram are: 1. Pipe body, 2. Outer pipe, 3. Inner pipe, 4. Cavity, 5. Elastic rubber, 6. Inner anti-corrosion layer, 7. Outer anti-corrosion layer, 8. Pressure-resistant column. Detailed Implementation

[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0020] Reference Figure 1-2A corrosion-resistant long aluminum pipe includes a pipe body 1, which comprises an outer pipe 2 and an inner pipe 3. The inner diameter of the outer pipe 2 is larger than the outer diameter of the inner pipe 3. The outer pipe 2 is made of 7-series aluminum alloy, and the inner pipe 3 is made of 3-series aluminum alloy. Compared with traditional zinc-sprayed aluminum pipes, these two aluminum alloy materials have higher corrosion resistance, enabling the aluminum pipe to resist the erosion of external corrosive factors during long-term use. They are also easier to process and suitable for processing longer pipes. A cavity 4 is provided between the outer pipe 2 and the inner pipe 3. The cavity 4 is a hollow structure and contains four pressure-resistant columns 8. The pressure-resistant columns 8 are located in the upper, lower, left, and right positions, respectively. Each pressure-resistant column 8 is connected to the outer side of the inner pipe 3 and the inner side of the outer pipe 2, providing support and reinforcement and sharing the pressure applied by the outside. The pressure-resistant columns 8 are designed to be evenly and symmetrically distributed in the pipe, effectively ensuring that the pipe can withstand greater pressure when subjected to uniform or non-uniform external forces without local collapse or deformation.

[0021] The pressure-resistant columns 8 are filled with elastic rubber 5. The elastic rubber 5 has good elasticity and shock absorption properties, which can absorb external vibration and impact during pipeline use, reduce stress fluctuations in the pipeline, effectively reduce mechanical fatigue caused by vibration, and prevent cracks or breaks in the pipeline caused by repeated vibration.

[0022] The inner wall of the inner pipe 3 is uniformly coated with an inner anti-corrosion layer 6, while the outer surface of the outer pipe 2 is also uniformly coated with an outer anti-corrosion layer 7. Both the inner and outer anti-corrosion layers 6 and 7 are made of corrosion-resistant materials, which can effectively resist the erosion of aluminum pipes by corrosive media such as water, acids, and salts. The inner anti-corrosion layer 6 mainly prevents the inner pipe 3 from reacting with the medium during fluid carrying, thus preventing corrosion or damage to the aluminum pipe. The outer anti-corrosion layer 7 protects the outer pipe 2 from corrosion by the external environment, extending the service life of the pipeline. The outer pipe 2 and inner pipe 3 use aluminum alloy materials with stronger corrosion resistance, and the coating of the inner and outer anti-corrosion layers 6 and 7 significantly improves the corrosion resistance of the pipeline. Even when exposed to a corrosive environment for a long time, the aluminum pipe body 1 can still maintain good functional performance, reducing the frequency of replacement and maintenance, thereby reducing operating costs.

[0023] In this embodiment, the use of 7-series and 3-series aluminum alloys significantly improves the corrosion resistance of the pipeline and makes the processing of long pipes more convenient and efficient than traditional zinc-sprayed aluminum pipes. The design of the cavity 4 and the pressure-resistant column 8 increases the compressive strength of the pipeline, effectively disperses external pressure, and prevents pipeline deformation. The filling of elastic rubber 5 significantly enhances the shock absorption effect, effectively reducing damage to the pipeline from external vibrations and extending its service life. The dual protection of the inner anti-corrosion layer 6 and the outer anti-corrosion layer 7 effectively prevents corrosion of the media inside and outside the pipeline, ensuring the continuity of corrosion resistance. The overall performance of this design greatly improves the stability and durability of the pipeline in harsh environments. At the same time, the excellent shock absorption and corrosion resistance design ensures long-term stable operation and reduces maintenance costs and equipment replacement frequency.

[0024] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0025] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A corrosion-resistant long aluminum tube, comprising a tube body (1), characterized in that: The tube body (1) includes an outer tube (2) and an inner tube (3), the inner diameter of the outer tube (2) is larger than the outer diameter of the inner tube (3); the outer tube (2) is made of 7-series aluminum alloy and the inner tube (3) is made of 3-series aluminum alloy.

2. The corrosion-resistant long aluminum tube according to claim 1, characterized in that: A cavity (4) is provided between the outer tube (2) and the inner tube (3), and the cavity (4) is a hollow structure.

3. The corrosion-resistant long aluminum tube according to claim 2, characterized in that: The cavity (4) is provided with four pressure-resistant columns (8).

4. The corrosion-resistant long aluminum tube according to claim 3, characterized in that: The pressure-resistant columns (8) are located in the upper, lower, left, and right positions inside the cavity (4), and each pressure-resistant column (8) is connected to the outer side of the inner tube (3) and the inner side of the outer tube (2). The connection between the pressure-resistant column and the inner and outer tubes is by welding.

5. The corrosion-resistant long aluminum tube according to claim 3, characterized in that: The pressure-resistant columns (8) are evenly and symmetrically distributed inside the pipe to ensure that the pipe can withstand greater pressure when subjected to external forces without local collapse or deformation.

6. The corrosion-resistant long aluminum tube according to claim 3, characterized in that: The pressure-resistant columns (8) are filled with elastic rubber (5).

7. A corrosion-resistant long aluminum tube according to claim 6, characterized in that: The elastic rubber (5) has good elasticity and shock absorption properties, and can effectively absorb external vibration and impact forces.

8. The corrosion-resistant long aluminum tube according to claim 1, characterized in that: The inner wall of the inner tube (3) is uniformly coated with an inner anti-corrosion layer (6), and the outer surface of the outer tube (2) is uniformly coated with an outer anti-corrosion layer (7).

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