Anti-corrosion large-diameter straight seam steel pipe

Abstract

The utility model discloses an anti-corrosion large-diameter straight seam steel pipe, which relates to the technical field of pipelines and comprises a straight seam steel pipe body. The number of the inner clamping grooves is two, and the two inner clamping grooves are formed in the positions, close to the edge, of the two ends of the inner wall of the straight seam steel pipe body correspondingly; the number of the external connection grooves is two, the two external connection grooves are formed in the positions, close to the edge, of the two ends of the outer surface of the straight seam steel pipe body correspondingly, a PE layer is arranged on the inner wall of the straight seam steel pipe body in an attached mode, an adhesive layer is arranged on the inner wall of the PE layer in an attached mode, and an anti-corrosion layer is arranged on the inner wall of the adhesive layer in an attached mode. The inner clamping grooves and the outer connecting grooves are used in cooperation, so that two independent straight seam steel pipe bodies can be stably in butt joint, the phenomenon of leakage at the butt joint position of the two straight seam steel pipe bodies is avoided, unification in the using process is improved, some maintenance time and cost are effectively reduced, time and labor are saved, and the straight seam steel pipe is simple in structure, convenient to use and high in practicability. And the overall effect in the using process is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of pipelines, in particular to an anti-corrosion large-diameter straight-seam steel pipe. Background Art

[0002] Straight seam steel pipe is a steel pipe with the weld parallel to the longitudinal direction of the steel pipe. It is usually divided into metric electric welded steel pipe, electric welded thin-walled pipe, transformer cooling oil pipe, etc. The production process of straight seam welded pipe is simple, the production efficiency is high, the cost is low, and the development is relatively fast. The strength of spiral welded pipe is generally higher than that of straight seam welded pipe. It can produce welded pipes with larger diameters with narrower billets, and can also produce welded pipes with different diameters with billets of the same width. However, compared with straight seam pipes of the same length, the weld length increases by 30-100%, and the production speed is lower. Straight seam steel pipes can be divided into high-frequency straight seam steel pipes and submerged arc welded straight seam steel pipes according to the production process. There are two types of welded pipes according to the specified wall thickness: ordinary steel pipes and thickened steel pipes. Steel pipes are divided into threaded and non-threaded according to the form of pipe ends.

[0003] The authorization publication number "CN215293921U" records "a corrosion-resistant large-diameter straight seam steel pipe, including a straight seam steel pipe, an anti-corrosion layer is provided on the inner side of the straight seam steel pipe, and a paint layer is provided on the outer side of the straight seam steel pipe. The anti-corrosion layer includes an FBE layer, an adhesive layer, and a PE layer. The FBE layer is located at the bottom layer of the anti-corrosion layer, the adhesive layer is located at the middle layer of the anti-corrosion layer, and the PE layer is located at the upper layer of the anti-corrosion layer. The utility model can prevent the corrosion of the pipe body by the liquid transported in the pipe when the straight seam steel pipe is in use, and also prevent some damage to the outer side of the pipe body during the transportation of the straight seam steel pipe, and some corrosion of the outer side of the pipe body by the external environment during use, effectively protecting the straight seam steel pipe, reducing some maintenance time and costs, saving manpower, and achieving time and labor saving".

[0004] The above patent can prevent the corrosion of the pipe body by the liquid transported in the straight seam steel pipe when it is in use, and also prevent some damage to the outer side of the pipe body during transportation of the straight seam steel pipe, and some corrosion of the outer side of the pipe body by the external environment during use, effectively protecting the straight seam steel pipe, reducing some maintenance time and costs, saving manpower, and achieving time and labor saving. However, during use, its length cannot guarantee the comprehensiveness of use. Therefore, docking is required in some cases. However, during the docking process, the two independent pipes cannot be effectively and easily docked to ensure the flexibility of docking during use. Utility Model Content

[0005] The utility model provides a corrosion-resistant large-diameter straight seam steel pipe. Through the coordinated use of an inner groove and an outer groove, two independent straight seam steel pipe bodies can be stably connected to each other, avoiding leakage at the connection point between the two straight seam steel pipe bodies, improving the uniformity during use, and effectively reducing some maintenance time and costs, saving time and effort. In addition, the utility model has a simple structure, is easy to use, and improves the overall effect during use.

[0006] To achieve the above purpose, the utility model is implemented through the following technical solutions: an anti-corrosion large-diameter straight seam steel pipe, comprising:

[0007] Straight seam steel pipe body;

[0008] There are two inner card slots, which are respectively opened at both ends of the inner wall of the straight seam steel pipe body near the edge; and

[0009] There are two external connection grooves, which are respectively opened at two ends of the outer surface of the straight seam steel pipe body near the edge.

[0010] Furthermore, a PE layer is attached to the inner wall of the straight seam steel pipe body.

[0011] Furthermore, an adhesive layer is attached to the inner wall of the PE layer.

[0012] Furthermore, an anti-corrosion layer is attached to the inner wall of the adhesive layer.

[0013] Furthermore, the outer surface of the straight seam steel pipe body is wrapped with a paint layer, and the paint layer is wrapped on the anti-corrosion layer.

[0014] The utility model provides a corrosion-resistant large-diameter straight seam steel pipe. It has the following beneficial effects:

[0015] The corrosion-resistant large-diameter straight-seam steel pipe, through the coordinated use of the inner slot and the outer slot, enables two independent straight-seam steel pipe bodies to be stably butted against each other, thereby avoiding leakage at the butt joint between the two straight-seam steel pipe bodies, improving uniformity during use, effectively reducing some maintenance time and costs, saving time and effort, and having a simple structure and being easy to use, thereby improving the overall effect during use. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a partial cross-sectional view of the utility model;

[0017] Figure 2 It is a three-dimensional diagram of the utility model;

[0018] Figure 3 It is an enlarged view of A of the present utility model.

[0019] In the figure: 1. Straight seam steel pipe body; 2. Inner slot; 3. External slot; 4. Paint layer; 5. PE layer; 6. Adhesive layer; 7. Anti-corrosion layer. DETAILED DESCRIPTION

[0020] The following will clearly and completely describe the technical solutions in the embodiments of the utility model in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0021] See also Figure 1-3 The utility model provides a technical solution: an anti-corrosion large-diameter straight seam steel pipe, comprising:

[0022] Straight seam steel pipe body 1;

[0023] There are two inner card slots 2, which are respectively opened at both ends of the inner wall of the straight seam steel pipe body 1 near the edge; and

[0024] There are two external grooves 3, which are respectively opened at two ends of the outer surface of the straight seam steel pipe body 1 near the edge.

[0025] In this embodiment: the straight seam steel pipe body 1 is a prior art, and the internal slot 2 and the external slot 3 are used synchronously, so that two independent straight seam steel pipe bodies 1 can be docked and used, thereby improving the effect during use.

[0026] Specifically, a PE layer 5 is attached to the inner wall of the straight seam steel pipe body 1 .

[0027] In this embodiment, the PE layer 5 is polyethylene, which is a thermoplastic resin obtained by polymerization of ethylene monomers, has good chemical stability, low water absorption, and excellent electrical insulation.

[0028] Specifically, an adhesive layer 6 is attached to the inner wall of the PE layer 5 .

[0029] In this embodiment: Adhesive is a natural or synthetic, organic or inorganic substance that can connect two or more parts or materials together through interfacial adhesion and cohesion.

[0030] Specifically, an anti-corrosion layer 7 is attached to the inner wall of the adhesive layer 6 .

[0031] In this embodiment, the anti-corrosion layer 7 is a layer of material coated on the surface of the straight seam steel pipe body 1 in order to protect it from corrosion.

[0032] Specifically, the outer surface of the straight seam steel pipe body 1 is wrapped with a paint layer 4 , and the paint layer 4 is wrapped on the anti-corrosion layer 7 .

[0033] In this embodiment: the paint layer 4 refers to one or more layers of paint covering the surface of an object, which is intended to protect the object from damage by the external environment and enhance the aesthetics of the object. The paint layer 4 is usually composed of multiple layers, including a primer, a mid-coat and a topcoat. The primer is used to improve the adhesion and smoothness with the substrate, the mid-coat is used to increase the thickness and weather resistance of the paint coating, and the topcoat is used to increase the gloss and decorativeness of the paint coating.

[0034] When in use, the number of straight seam steel pipe bodies 1 is selected according to usage, and the straight seam steel pipe body 1 is placed in the position of use to ensure the use effect. During use, the paint layer 4, PE layer 5 and anti-corrosion layer 7 cooperate to ensure the stability of the straight seam steel pipe body 1 during use, and when docking is required, the internal card slot 2 and the external slot 3 are used in coordination to make the two independent straight seam steel pipe bodies 1 stably docked, avoiding leakage at the docking point between the two straight seam steel pipes, and completing the use.

[0035] The control method of the present invention is to control by manually starting and closing the switch. The wiring diagram of the power element and the provision of power supply are common knowledge in the field, and the present invention is mainly used to protect mechanical devices, so the present invention will not explain the control method and wiring arrangement in detail.

[0036] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A corrosion-resistant large-diameter straight seam steel pipe, characterized in that: include: Straight seam steel pipe body (1); Two inner card slots (2) are provided, and the two inner card slots (2) are respectively opened at both ends of the inner wall of the straight seam steel pipe body (1) near the edge; and There are two external connection grooves (3), and the two external connection grooves (3) are respectively opened at both ends of the outer surface of the straight seam steel pipe body (1) near the edge.

2. The corrosion-resistant large-diameter straight seam steel pipe according to claim 1, characterized in that: A PE layer (5) is attached to the inner wall of the straight seam steel pipe body (1).

3. The corrosion-resistant large-diameter straight seam steel pipe according to claim 2, characterized in that: An adhesive layer (6) is attached to the inner wall of the PE layer (5).

4. The corrosion-resistant large-diameter straight seam steel pipe according to claim 3, characterized in that: An anti-corrosion layer (7) is attached to the inner wall of the adhesive layer (6).

5. The corrosion-resistant large-diameter straight seam steel pipe according to claim 4, characterized in that: The outer surface of the straight seam steel pipe body (1) is coated with a paint layer (4), and the paint layer (4) is wrapped on the anti-corrosion layer (7).

Images