Steel seamless elbow with anti-corrosion coating

Abstract

The utility model relates to the technical field of elbows, in particular to a steel seamless elbow with anti-corrosion coatings, which comprises a seamless elbow body used for connecting two pipelines, the inner wall and the outer wall of the seamless elbow body are both provided with the anti-corrosion coatings, the two ends of the seamless elbow body are both sleeved with lantern rings, and the two ends of the seamless elbow body are both provided with the anti-corrosion coatings. A storage groove is formed in one end of the lantern ring, a first rubber cover is fixed in the storage groove, and a first rubber ring is fixed to one end of the first rubber cover; the seamless elbow has the beneficial effects that after the seamless elbow body and the pipeline are welded, the first rubber cover in the containing groove in one end of the lantern ring sleeves a welding point, the first rubber ring sleeves the pipeline, and the first rubber cover and the first rubber ring are matched to comprehensively cover the welding position of the seamless elbow body and the pipeline. By means of the design, corrosive media can be effectively prevented from making contact with the welding position, the problems of leakage and the like caused by corrosion of the welding position are avoided, and the safety and reliability of a pipeline system are improved.

Description

Technical Field

[0001] This utility model relates to the field of elbows, specifically a seamless steel elbow with an anti-corrosion coating. Background Technology

[0002] In industrial pipeline systems, seamless steel elbows are crucial components connecting pipes and are widely used in various fields such as petroleum, chemical, natural gas, and power. However, the environments in which pipeline systems operate are often complex, containing various corrosive media such as acids, alkalis, salt solutions, and humid air. These media can cause severe corrosion to seamless steel elbows, affecting their service life and the safe operation of the pipeline system.

[0003] The connection between seamless steel elbows and pipelines is often a weak point in corrosion protection. During the welding process, the microstructure and properties of the welded area change, making it susceptible to corrosion from corrosive media. Furthermore, the sealing of the weld is crucial; poor sealing allows corrosive media to seep into the pipeline, accelerating corrosion of both the pipe and the elbow. Therefore, improving the corrosion resistance of seamless steel elbows, especially the protection of the welded areas, is an urgent problem to be solved. Utility Model Content

[0004] The purpose of this invention is to provide a seamless steel elbow with an anti-corrosion coating to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a seamless steel elbow with an anti-corrosion coating, comprising a seamless elbow body for connecting two pipes, wherein both the inner wall and the outer wall of the seamless elbow body are provided with an anti-corrosion coating, and both ends of the seamless elbow body are fitted with collars, one end of which has a receiving groove, and a rubber cover is fixed inside the receiving groove, and a rubber ring is fixed at one end of the rubber cover.

[0006] Preferably, the inner ring of the collar has side grooves at both ends. The side grooves are annular grooves, and a sealing ring is fixed inside the side groove. The inner ring diameter of the sealing ring is smaller than the outer ring diameter of the seamless elbow body. The sealing ring is clamped between the side groove and the seamless elbow body and undergoes elastic deformation.

[0007] Preferably, the receiving groove is an annular groove, the rubber cover is a frustum-shaped cover, and after the seamless elbow body and the pipe are welded, the rubber cover is set on the welding point covering the seamless elbow body and the pipe, and the rubber ring is set on the pipe.

[0008] Preferably, one end of the collar has a notch on its outer ring surface. The notch is an annular groove, and the surface of the notch has multiple screw holes. A mounting screw is screwed into the inside of the screw holes, and one end of the mounting screw abuts against the outer wall of the seamless elbow body.

[0009] Preferably, the inner annular surface of the notch is provided with a slot, a second rubber ring is fitted inside the slot, a second rubber cover is fixed to the surface of the second rubber ring, and one end of the second rubber cover is fixed to the side wall of the notch.

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

[0011] This invention proposes a seamless steel elbow with an anti-corrosion coating. After the seamless elbow body and the pipe are welded, a rubber cover inside a groove at one end of a collar is placed over the weld joint, and a rubber ring is placed on the pipe. Together, these two components provide complete coverage of the weld joint between the seamless elbow body and the pipe. This design effectively prevents corrosive media from contacting the weld joint, avoiding leaks due to corrosion and improving the safety and reliability of the pipeline system. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the structure of this utility model;

[0013] Figure 2 This is a front view of the structure of this utility model;

[0014] Figure 3 for Figure 2 Sectional view of the structure at point AA;

[0015] Figure 4 for Figure 3 Enlarged schematic diagram of the structure at point A in the middle.

[0016] In the diagram: 1. Seamless elbow body; 2. Side groove; 3. Sealing ring; 4. Storage groove; 5. Rubber cover one; 6. Rubber ring one; 7. Notched groove; 8. Screw hole; 9. Mounting screw; 10. Slot; 11. Rubber cover two; 12. Rubber ring two; 13. Collar. Detailed Implementation

[0017] To make the objectives, technical solutions, and advantages of this utility model clear and complete, the embodiments of this utility model will be further described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are only some, not all, embodiments of this utility model, and are merely used to explain the embodiments of this utility model. They are not intended to limit the embodiments of this utility model. All other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0018] Please see Figures 1-4This utility model provides a technical solution: a seamless steel elbow with an anti-corrosion coating, comprising a seamless elbow body 1 for connecting two pipes. Both the inner and outer walls of the seamless elbow body 1 are coated with an anti-corrosion coating. Both ends of the seamless elbow body 1 are fitted with collars 13. The inner ring of the collar 13 has side grooves 2 at both ends. The side grooves 2 are annular grooves. A sealing ring 3 is fixed inside the side grooves 2. The inner ring diameter of the sealing ring 3 is smaller than the outer ring diameter of the seamless elbow body 1. The sealing ring 3 is clamped between the side grooves 2 and the seamless elbow body 1, resulting in elastic deformation. One end of the collar 13 has a receiving groove 4. A rubber cover 5 is fixed inside the receiving groove 4. A rubber ring 6 is fixed to one end of the rubber cover 5. The receiving groove 4 is annular, and the rubber cover 5 is a frustum-shaped cover. After the seamless elbow body 1 and the pipe are welded, the rubber cover 5 is fitted over the weld point covering the seamless elbow body 1 and the pipe, and the rubber ring 6 is fitted over the pipe. After the collar 13 is fixed to the end of the seamless elbow body 1, the rubber cover 5 and the rubber ring 6 work together to cover the weld between the seamless elbow body 1 and the pipe, preventing corrosion of the weld between the seamless elbow body 1 and the pipe.

[0019] One end of the collar 13 has a notch 7 on its outer ring surface. The notch 7 is an annular groove, and multiple screw holes 8 are formed on the surface of the notch 7. A mounting screw 9 is screwed into the screw holes 8, and one end of the mounting screw 9 abuts against the outer wall of the seamless elbow body 1. A retaining groove 10 is formed on the inner ring surface of the notch 7. A rubber ring 12 is fitted inside the retaining groove 10, and a rubber cover 11 is fixed to the surface of the rubber ring 12. One end of the rubber cover 11 is fixed to the side wall of the notch 7. After the collar 13 is fitted onto the end of the seamless elbow body 1, the mounting screw 9 is screwed to clamp the seamless elbow body 1, thereby fixing the collar 13 to the end of the seamless elbow body 1. Then, the rubber ring 12 is tensioned and fitted into the retaining groove 10. At this time, the rubber cover 11 unfolds to cover the mounting screw 9.

[0020] Instructions for using a steel seamless elbow with an anti-corrosion coating: Place the collar 13 onto the end of the seamless elbow body 1, aligning the inner ring of the collar 13 with the end of the seamless elbow body 1. Slowly push the collar 13 until it reaches the appropriate position. Use a wrench or similar tool to tighten the mounting screw 9. The mounting screw 9 is gradually screwed into the screw hole 8, with one end abutting against the outer wall of the seamless elbow body 1. By tightening multiple mounting screws 9, the collar 13 is securely fixed to the end of the seamless elbow body 1. Tension the rubber ring 12, fitting it into the slot 10. At this time, the rubber cover 11, fixed to the surface of the rubber ring 12, unfolds. One end of the rubber cover 11 is fixed to the side wall of the notch 7. After unfolding, the rubber cover 11 covers the mounting screw 9, providing some protection. Weld the seamless elbow body 1 to the pipe to be connected, ensuring welding quality and a tight connection between the seamless elbow body 1 and the pipe. During welding, attention must be paid to the welding process to avoid welding defects that could lead to poor sealing. After the seamless elbow body 1 and the pipe are welded, the rubber cover 5 inside the receiving groove 4 at one end of the collar 13 will be fitted over the weld point covering the seamless elbow body 1 and the pipe, while the rubber ring 6 will be fitted over the pipe. At this time, the rubber cover 5 and the rubber ring 6 work together to cover the weld point between the seamless elbow body 1 and the pipe, preventing external corrosive media from contacting the weld point and avoiding corrosion. After welding, carefully check whether the sealing components such as the rubber cover 5, rubber ring 6, and rubber cover 11 are installed correctly and whether there is any damage or looseness. The sealing effect can be checked by pressing appropriately and observing to ensure a good seal and effective prevention of corrosion.

[0021] Although 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 alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A seamless steel elbow provided with a corrosion protection coating, comprising a seamless elbow body (1) for connecting two pipes, the inner wall of the seamless elbow body (1) and the outer wall of the seamless elbow body (1) are provided with a corrosion protection coating, characterized in that: Both ends of the seamless elbow body (1) are fitted with collars (13), one end of the collar (13) is provided with a storage groove (4), a rubber cover (5) is fixed inside the storage groove (4), and a rubber ring (6) is fixed at one end of the rubber cover (5).

2. A seamless steel bend with an anticorrosion coating according to claim 1, characterized in that: The inner ring of the collar (13) has side grooves (2) at both ends. The side grooves (2) are annular grooves. A sealing ring (3) is fixed inside the side grooves (2). The inner ring diameter of the sealing ring (3) is smaller than the outer ring diameter of the seamless elbow body (1). The sealing ring (3) is clamped between the side groove (2) and the seamless elbow body (1) and undergoes elastic deformation.

3. The steel seamless elbow with an anti-corrosion coating according to claim 1, characterized in that: The storage groove (4) is an annular groove, the rubber cover (5) is a frustum cover, after the seamless elbow body (1) and the pipe are welded, the rubber cover (5) is fitted on the welding point covering the seamless elbow body (1) and the pipe, and the rubber ring (6) is fitted on the pipe.

4. The steel seamless elbow with an anti-corrosion coating according to claim 1, characterized in that: One end of the collar (13) has a notch (7) on its outer ring surface. The notch (7) is an annular groove. Multiple screw holes (8) are provided on the surface of the notch (7). A mounting screw (9) is screwed into the inside of the screw hole (8). One end of the mounting screw (9) abuts against the outer wall of the seamless elbow body (1).

5. A seamless steel bend provided with an anticorrosion coating according to claim 4, characterized in that: The inner ring surface of the notch (7) is provided with a slot (10), and a rubber ring (12) is fitted inside the slot (10). A rubber cover (11) is fixed on the surface of the rubber ring (12), and one end of the rubber cover (11) is fixed on the side wall of the notch (7).

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