Corrosion-resistant high-strength composite stainless steel pipe

Abstract

The corrosion-resistant high-strength composite stainless steel pipe comprises a steel pipe body, a protection mechanism is arranged on the outer side of the steel pipe body, the protection mechanism comprises a supporting stand column, a protection sleeve, a sealing plate and a glue injection opening, and the supporting stand column is arranged on the surface of the outer side of the steel pipe body; a protective sleeve is fixedly arranged at the end, away from the steel pipe body, of the supporting stand column, a sealing plate is fixedly arranged between the protective sleeve and the steel pipe body, and a glue injection opening is formed in the surface of the outer side of the sealing plate. The steel pipe is good in using effect, the protection mechanism and the interlayer are arranged on the outer side of a traditional stainless steel pipe, the interlayer can be filled with polyurethane foam joint mixture according to needs, and therefore the outer side of the steel pipe body can be effectively protected, the outer side protection coating of the steel pipe body can be effectively protected, and the service life of the steel pipe body is prolonged. The service life of the steel pipe body can be obviously prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of stainless steel pipes, in particular to a corrosion-resistant high-strength composite stainless steel pipe. Background Art

[0002] Stainless steel pipe refers to a long, hollow steel strip. It is widely used not only in industrial pipelines such as petroleum, chemical, medical, food, light industry, and mechanical instrumentation, but also in the manufacture of mechanical parts and engineering structures. Due to the different application fields of stainless steel pipe, the corresponding product requirements are also different.

[0003] However, in the prior art, the exterior of such stainless steel pipes is generally exposed directly to the outside. Although a protective coating may be provided on the outside, in harsh environments such as mines, when impacted, the impact directly acts on the surface of the stainless steel pipe, which can easily damage the steel pipe and the coating, causing subsequent pipelines to slowly corrode and be damaged. Therefore, a corrosion-resistant, high-strength composite stainless steel pipe is needed to improve this problem. Utility Model Content

[0004] The purpose of the utility model is to provide a corrosion-resistant high-strength composite stainless steel pipe to solve the problems raised in the above background technology.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a corrosion-resistant high-strength composite stainless steel pipe, comprising a steel pipe body, a protective mechanism being arranged on the outside of the steel pipe body, the protective mechanism comprising a supporting column, a protective sleeve, a sealing plate, and a glue injection port, a supporting column being arranged on the outer surface of the steel pipe body, a protective sleeve being fixedly arranged on the end of the supporting column away from the steel pipe body, a sealing plate being fixedly arranged between the protective sleeve and the steel pipe body, and a glue injection port being provided on the outer surface of the sealing plate.

[0006] Preferably, a first protective coating is provided on the outside of the steel pipe body, which can ensure the anti-rust effect of the steel pipe body, and the first protective coating is protected by a protective mechanism. In this way, when the entire device is hit, the impact force can be absorbed by the protective sleeve and will not damage the first protective coating. This can significantly improve the use effect and life of the steel pipe body.

[0007] Preferably, a cavity is provided between the protective sleeve and the steel pipe body, through which glue can be injected, polyurethane foam filler can be filled, or other colloids can be injected, thereby playing the role of buffering, heat preservation and protecting the first protective coating on the outside of the steel pipe body.

[0008] Preferably, a first welding plate is fixedly provided at the lower end of the support column, and a second welding plate is fixedly provided at the upper end of the support column. The support column is fixedly connected to the steel pipe body by welding the first welding plate, and the support column is fixedly connected to the protective sleeve by welding the second welding plate. The contact area between the support column and the steel pipe body and the protective sleeve can be increased by the first welding plate and the second welding plate, thereby improving the welding fixing effect.

[0009] Preferably, a second protective coating is provided on the outside of the protective sleeve, which can protect the protective sleeve. The second protective coating can be damaged at will because it is convenient to repair. Since the protective sleeve originally replaces the steel pipe body to be damaged, even if the protective sleeve is damaged or leaks, it will not cause the liquid or gas inside the steel pipe body to leak. Moreover, since there is no pressure inside the cavity, there will be no safety hazard even if the protective sleeve is slightly damaged.

[0010] Compared with the prior art, the beneficial effects of the present invention are:

[0011] 1. The utility model fixes a protective sleeve by a supporting column, and provides an interlayer cavity between the protective sleeve and the steel pipe body. In this way, in a harsh environment, if gravel slides and falls, it will first hit the outer surface of the protective sleeve when it hits. In addition, since the interlayer cavity can provide a certain buffer space, the use effect and life of the steel pipe body can be significantly improved.

[0012] 2. When the utility model is used, glue can be injected through the cavity. Polyurethane foam filler can be filled, and other colloids can also be injected, so as to play the role of buffering, heat preservation and protection of the first protective coating on the outside of the steel pipe body, thereby further improving the use effect and life of the steel pipe body. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 This is a schematic diagram of the overall structure of the corrosion-resistant high-strength composite stainless steel pipe of the utility model;

[0014] Figure 2 This is a front view of the corrosion-resistant high-strength composite stainless steel pipe of the utility model;

[0015] Figure 3 This is a cross-sectional view of the corrosion-resistant high-strength composite stainless steel pipe of the utility model;

[0016] Figure 4 This utility model is a corrosion-resistant high-strength composite stainless steel pipe Figure 3 Magnified view at point A in the middle.

[0017] In the figure: 1. Steel pipe body; 2. Support column; 3. Protective sleeve; 4. Cavity; 5. Sealing plate; 6. Glue injection port; 7. First welding plate; 8. Second welding plate; 9. First protective coating; 10. Second protective coating. DETAILED DESCRIPTION

[0018] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0019] See also Figure 1-4 The utility model provides a technical solution: a corrosion-resistant high-strength composite stainless steel pipe, comprising a steel pipe body 1, a protective mechanism is arranged on the outside of the steel pipe body 1, the protective mechanism comprises a supporting column 2, a protective sleeve 3, a sealing plate 5, and a glue injection port 6, a supporting column 2 is arranged on the outer surface of the steel pipe body 1, a protective sleeve 3 is fixedly arranged on the end of the supporting column 2 away from the steel pipe body 1, a sealing plate 5 is fixedly arranged between the protective sleeve 3 and the steel pipe body 1, and a glue injection port 6 is opened on the outer surface of the sealing plate 5.

[0020] The outer side of the steel pipe body 1 is provided with a first protective coating 9, which can ensure the rust-proof effect of the steel pipe body 1. The first protective coating 9 is protected by a protective mechanism. In this way, when the entire device is hit, the impact force can be absorbed by the protective sleeve 3 without damaging the first protective coating 9, which can significantly improve the use effect and life of the steel pipe body 1.

[0021] A cavity 4 is provided between the protective sleeve 3 and the steel pipe body 1, through which glue can be injected, and polyurethane foam sealant can be filled, or other colloids can be injected, so as to play the role of buffering, heat preservation and protecting the first protective coating 9 on the outside of the steel pipe body 1;

[0022] The lower end of the support column 2 is fixedly provided with a first welding plate 7, and the upper end of the support column 2 is fixedly provided with a second welding plate 8. The support column 2 is fixedly connected to the steel pipe body 1 by welding between the first welding plate 7, and the support column 2 is fixedly connected to the protective sleeve 3 by welding between the second welding plate 8. The first welding plate 7 and the second welding plate 8 can increase the contact area between the support column 2 and the steel pipe body 1 and the protective sleeve 3, thereby improving the welding fixation effect;

[0023] A second protective coating 10 is provided on the outside of the protective sleeve 3, which can protect the protective sleeve 3. The second protective coating 10 can be damaged at will because it is convenient to repair. Since the protective sleeve 3 originally replaces the steel pipe body 1 to be damaged, even if the protective sleeve 3 is damaged or leaks, it will not cause the liquid or gas inside the steel pipe body 1 to leak. Moreover, since there is no pressure inside the cavity 4, there will be no safety hazard even if the protective sleeve 3 is slightly damaged.

[0024] Working principle: When using this device, a protective sleeve 3 is fixed to the steel pipe body 1 through the support column 2, and an interlayer cavity 4 is provided between the protective sleeve 3 and the steel pipe body 1. In this way, in a harsh environment, if there is debris sliding and hitting, it will first hit the outer surface of the protective sleeve 3. And because the interlayer cavity 4 can provide a certain buffer space, this can significantly improve the use effect and life of the steel pipe body 1.

[0025] When the device is in use, glue can be injected through the cavity 4. Polyurethane foam filler can be filled, or other colloids can be injected, so as to play a role in buffering, heat preservation and protection of the first protective coating 9 on the outside of the steel pipe body 1, thereby further improving the use effect and life of the steel pipe body 1.

[0026] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that includes a list of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus.

[0027] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A corrosion-resistant high-strength composite stainless steel pipe, comprising a steel pipe body (1), characterized in that: A protective mechanism is provided on the outside of the steel pipe body (1), and the protective mechanism comprises a supporting column (2), a protective sleeve (3), a sealing plate (5), and a glue injection port (6). The outer surface of the steel pipe body (1) is provided with a supporting column (2), and a protective sleeve (3) is fixedly provided on one end of the supporting column (2) away from the steel pipe body (1). A sealing plate (5) is fixedly provided between the protective sleeve (3) and the steel pipe body (1), and a glue injection port (6) is provided on the outer surface of the sealing plate (5).

2. The corrosion-resistant high-strength composite stainless steel pipe according to claim 1, characterized in that: A first protective coating (9) is provided on the outer side of the steel pipe body (1).

3. The corrosion-resistant high-strength composite stainless steel pipe according to claim 1, characterized in that: A cavity (4) is provided between the protective sleeve (3) and the steel pipe body (1).

4. The corrosion-resistant high-strength composite stainless steel pipe according to claim 1, characterized in that: A first welding plate (7) is fixedly provided at the lower end of the support column (2), and a second welding plate (8) is fixedly provided at the upper end of the support column (2); the support column (2) is fixedly connected to the steel pipe body (1) by welding the first welding plate (7); and the support column (2) is fixedly connected to the protective sleeve (3) by welding the second welding plate (8).

5. The corrosion-resistant high-strength composite stainless steel pipe according to claim 1, characterized in that: A second protective coating (10) is provided on the outside of the protective sleeve (3).

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