High-strength corrosion-resistant stainless steel welded pipe

Abstract

The utility model relates to the technical field of stainless steel welded pipes, in particular to a high-strength corrosion-resistant stainless steel welded pipe. According to the technical scheme, the stainless steel welding pipe comprises a rubber strip and a stainless steel welding pipe body, a plurality of reinforcing protrusions are arranged on the outer surface of the stainless steel welding pipe body in an annular array at equal intervals, a clamping groove is formed in the outer surface of each reinforcing protrusion, a clamping protrusion is arranged on the outer surface of the rubber strip, and the clamping protrusions are located in the clamping grooves. The strength of the stainless steel welded pipe can be improved, the stainless steel welded pipe is prevented from being collided and deformed, meanwhile, the corrosion-resistant coating on the surface of the stainless steel welded pipe is prevented from being abraded, and therefore the corrosion resistance is improved, and the service life is prolonged.

Description

Technical Field

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

[0002] Stainless steel welded pipe refers to a pipe made by welding rolled plates or steel strips after multiple processing steps. It has a simple production process, high production efficiency, and low equipment investment, but its strength is generally lower than that of similar seamless steel pipes. However, with the rapid development of high-quality strip steel continuous rolling production and the advancement of welding and inspection technology, the quality of welds has been continuously improved, and the varieties and specifications of stainless steel welded pipes have increased day by day. It has replaced seamless steel pipes in more and more fields, especially in heat exchange equipment pipes, decorative pipes, medium and low pressure fluid pipes, etc.

[0003] The current stainless steel welded pipe is prone to deformation when subjected to external impact during use and transportation, and the corrosion-resistant coating on the surface is easily worn, resulting in corrosion of the stainless welded pipe. For this reason, we propose a high-strength, corrosion-resistant stainless steel welded pipe. Utility Model Content

[0004] The purpose of the utility model is to provide a high-strength corrosion-resistant stainless steel welded pipe, which has the advantages of being able to improve the strength of the stainless steel welded pipe to avoid deformation due to impact, and at the same time avoid wear of the corrosion-resistant coating on the surface of the stainless steel welded pipe, thereby improving corrosion resistance and then increasing service life, and solves the problem that the current stainless steel welded pipe is prone to deformation when subjected to external impact during use and transportation, and the corrosion-resistant coating on the surface is easily worn, resulting in corrosion of the stainless welded pipe.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a high-strength, corrosion-resistant stainless steel welded pipe, comprising a rubber strip and a stainless steel welded pipe body, the outer surface of the stainless steel welded pipe body being provided with a plurality of reinforcing protrusions equidistantly arranged in a circular array, the outer surface of each of the reinforcing protrusions being provided with a clamping groove, the outer surface of the rubber strip being provided with a clamping protrusion, and the clamping protrusion being located inside the clamping groove.

[0006] Preferably, the outer surface of the rubber strip is provided with extended blocking pieces at both sides of the clamping protrusion, which shield the reinforcing protrusion and prevent the surface of the reinforcing protrusion from being worn.

[0007] Preferably, the inner wall of the stainless steel welded pipe body is provided with an internal corrosion-resistant coating, and the outer surface of the stainless steel welded pipe body is provided with an external corrosion-resistant coating. The internal corrosion-resistant coating and the external corrosion-resistant coating improve the corrosion resistance inside and outside the stainless steel welded pipe and extend its service life.

[0008] Preferably, an internal heat-insulating coating is provided between the inner wall of the stainless steel welded pipe body and the internal corrosion-resistant coating, and the internal heat-insulating coating plays a role in heat insulation between the stainless steel welded pipe body and the medium flowing inside it.

[0009] Preferably, an external heat-insulating coating is provided between the outer surface of the stainless steel welded pipe body and the external corrosion-resistant coating, and the external heat-insulating coating plays a role in heat insulation between the stainless steel welded pipe body and the external environment.

[0010] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0011] 1. The utility model achieves the effect of improving the strength of the stainless steel welded pipe to avoid deformation due to impact and avoiding wear of the corrosion-resistant coating on the surface of the stainless steel welded pipe by arranging a stainless steel welded pipe body, reinforcing protrusions, clamping grooves, rubber strips and clamping protrusions, thereby improving the corrosion resistance and then improving the service life. The reinforcing protrusions in a ring array on the outer surface of the stainless steel welded pipe body improve the overall strength, so that the stainless steel welded pipe body is not easily deformed when impacted by external force, and the stainless steel welded pipe body first contacts the rubber strip when impacted by external force, and the rubber strip also has a buffering effect, further avoiding deformation of the stainless steel welded pipe body. At the same time, the reinforcing protrusions and rubber strips also make it difficult for other objects to contact the outer surface of the stainless steel welded pipe body, and it is also difficult to cause the corrosion-resistant layer on the outer surface of the stainless steel welded pipe body to be worn, thereby greatly improving the corrosion resistance of the stainless steel welded pipe body.

[0012] 2. The utility model provides an extended baffle to shield the reinforcing protrusion, thereby preventing the surface of the reinforcing protrusion from being worn.

[0013] 3. The utility model can provide internal and external thermal insulation coatings to insulate the main body of the stainless steel welded pipe, thereby improving the cold resistance and heat resistance of the main body of the stainless steel welded pipe, avoiding deformation of the main body of the stainless steel welded pipe due to high temperature, and avoiding cold brittleness of the main body of the stainless steel welded pipe due to low temperature, thereby further improving the strength of the main body of the stainless steel welded pipe. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a three-dimensional schematic diagram of the utility model;

[0015] Figure 2 For this utility model Figure 1 A is a schematic diagram of the enlarged structure of the middle part;

[0016] Figure 3 It is a schematic diagram of the main cross-sectional structure of the utility model.

[0017] Figure numerals: 1. rubber strip; 2. stainless steel welded pipe body; 3. reinforcing protrusion; 4. snap-in groove; 5. extended baffle; 6. snap-in protrusion; 7. external corrosion-resistant coating; 8. external thermal insulation coating; 9. internal thermal insulation coating; 10. internal corrosion-resistant coating. DETAILED DESCRIPTION

[0018] The technical solution of the utility model is further described below in conjunction with the accompanying drawings and specific embodiments.

[0019] Embodiment 1

[0020] like Figure 1-Figure 3 As shown, the utility model proposes a high-strength corrosion-resistant stainless steel welded pipe, including a rubber strip 1 and a stainless steel welded pipe body 2, the inner wall of the stainless steel welded pipe body 2 is provided with an internal corrosion-resistant coating 10, and the outer surface of the stainless steel welded pipe body 2 is provided with an external corrosion-resistant coating 7, the internal corrosion-resistant coating 10 and the external corrosion-resistant coating 7 can improve the corrosion resistance of the stainless steel welded pipe body 2 inside and outside, and the outer surface of the stainless steel welded pipe body 2 is provided with a plurality of reinforcing protrusions 3 in an annular array and equidistantly, and the reinforcing protrusions 3 and the stainless steel welded pipe body 2 are integrated Molding, each reinforcing protrusion 3 is provided with a clamping groove 4 on the outer surface, the outer surface of the rubber strip 1 is provided with a clamping protrusion 6, and the clamping protrusion 6 is located inside the clamping groove 4, the clamping protrusion 6 and the rubber strip 1 are integrally formed, and the rubber strip 1 is clamped and fixed to the outer surface of the stainless steel welded pipe body 2 through the clamping protrusion 6 and the clamping groove 4, and the outer surface of the rubber strip 1 is provided with extended baffles 5 at both sides of the clamping protrusion 6, and the extended baffles 5 and the rubber strip 1 are integrally formed, which are used to strengthen the shielding of the protrusion 3 and prevent the outer surface of the reinforcing protrusion 3 from being worn.

[0021] When the utility model is in use, the reinforcing protrusions 3 in a ring array on the outer surface of the stainless steel welded pipe body 2 improve the overall strength, so that the stainless steel welded pipe body 2 is not easily deformed when impacted by external force, and the stainless steel welded pipe body 2 first contacts the rubber strip 1 when impacted by external force, and the rubber strip 1 also has a buffering effect, further avoiding the deformation of the stainless steel welded pipe body 2. At the same time, the reinforcing protrusions 3 and the rubber strip 1 also make it difficult for other objects to contact the outer surface of the stainless steel welded pipe body 2, and it is also not easy to cause the corrosion-resistant layer on the outer surface of the stainless steel welded pipe body 2 to be worn, thereby greatly improving the corrosion resistance of the stainless steel welded pipe body 2.

[0022] Embodiment 2

[0023] like Figure 3 As shown, the utility model proposes a high-strength corrosion-resistant stainless steel welded pipe. Compared with the first embodiment, this embodiment also includes an internal thermal insulation coating 9 arranged between the inner wall of the stainless steel welded pipe body 2 and the internal corrosion-resistant coating 10, and an external thermal insulation coating 8 arranged between the outer surface of the stainless steel welded pipe body 2 and the external corrosion-resistant coating 7.

[0024] In this embodiment, the internal thermal insulation coating 9 and the external thermal insulation coating 8 can provide thermal insulation for the stainless steel welded pipe body 2, thereby improving the cold resistance and heat resistance of the stainless steel welded pipe body 2, avoiding deformation of the stainless steel welded pipe body 2 due to high temperature, and avoiding cold brittleness of the stainless steel welded pipe body 2 due to low temperature, thereby further improving the strength of the stainless steel welded pipe body 2.

[0025] The above-mentioned specific embodiments are only several preferred embodiments of the present invention. Based on the technical solution of the present invention and the relevant inspiration of the above-mentioned embodiments, those skilled in the art can make various alternative improvements and combinations to the above-mentioned specific embodiments.

Claims

1. A high-strength, corrosion-resistant stainless steel welded pipe, comprising a rubber strip (1) and a stainless steel welded pipe body (2), characterized in that: The outer surface of the stainless steel welded pipe body (2) is provided with a plurality of reinforcing protrusions (3) equidistantly arranged in a circular array, and the outer surface of each reinforcing protrusion (3) is provided with a snap-fitting groove (4). The outer surface of the rubber strip (1) is provided with a snap-fitting protrusion (6), and the snap-fitting protrusion (6) is located inside the snap-fitting groove (4).

2. The high-strength, corrosion-resistant stainless steel welded pipe according to claim 1, characterized in that: Extended blocking pieces (5) are provided on the outer surface of the rubber strip (1) at positions on both sides of the clamping protrusion (6).

3. The high-strength, corrosion-resistant stainless steel welded pipe according to claim 1, characterized in that: The inner wall of the stainless steel welded pipe body (2) is provided with an internal corrosion-resistant coating (10), and the outer surface of the stainless steel welded pipe body (2) is provided with an external corrosion-resistant coating (7).

4. The high-strength, corrosion-resistant stainless steel welded pipe according to claim 3, characterized in that: An internal heat-insulating coating (9) is provided between the inner wall of the stainless steel welded pipe body (2) and the internal corrosion-resistant coating (10).

5. The high-strength, corrosion-resistant stainless steel welded pipe according to claim 3, characterized in that: An external heat-insulating coating (8) is provided between the outer surface of the stainless steel welded pipe body (2) and the external corrosion-resistant coating (7).

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