Underwater pipeline welding skill improving device

Abstract

The utility model discloses an underwater pipeline welding skill improving device, which belongs to the technical field of welding and comprises a device body, a grating plate is arranged in the device body, the device body is divided into a lower welding area and an upper welding area by the grating plate, a first disc is arranged on the lower welding area, a pipeline is mounted on the first disc, and a second disc is arranged on the upper welding area. The pipeline of the first disc on the lower welding area is welded to meet the welding technical requirements of 5G positions at different angles, the second disc is arranged on the upper welding area, the pipeline is installed on the second disc, and the pipeline of the second disc on the upper welding area is welded to meet the welding technical requirements of 2G positions at different angles. According to the utility model, an operation platform for an actual underwater manifold project is manufactured, the skills of welding 2G and 5G positions of dense pipelines and welding between pipe fittings and between pipe fittings and elbows are improved, the welding skills of welders in narrow and small spaces are improved, the welders are enabled to quickly adapt to the welding requirements of dense small pipelines in the training process, and the practicability is strong.

Description

Technical Field

[0001] The utility model belongs to the technical field of welding, and in particular relates to a device for improving underwater pipeline welding skills. Background Art

[0002] To improve the corrosion resistance of pipelines used in underwater production systems, super-duplex stainless steel is typically used in pipeline design. This material offers superior strength and corrosion resistance, including strong resistance to chloride corrosion, high thermal conductivity, and a low coefficient of thermal expansion. Its high chromium, molybdenum, and nitrogen content also provides excellent resistance to pitting, crevice, and general corrosion. It is primarily used in chemical processing, petrochemicals, and subsea equipment.

[0003] However, the diameter of this type of pipeline is basically less than 2 inches. The small diameter makes welding operation difficult and inefficient, which seriously affects the construction of the pipeline.

[0004] Currently, the industry's approach to improving skills in welding small super-duplex stainless steel pipelines is: first, conduct two weeks of skills training before project commencement, starting with practice on 2-inch pipelines and gradually moving on to training on 1-inch pipelines and smaller, to adapt to the welding requirements of small pipelines. Second, create skill training tooling, set up obstacles above and below the pipelines, and conduct specialized training. However, this method only considers the impact of pipeline spacing on welding during construction and fails to fully account for the welder's operating space, such as their position and line of sight. This leads to insufficient welding skills in confined spaces and poor welding quality. Therefore, the above two methods cannot meet the requirements of underwater manifold control system pipeline welding construction.

[0005] Therefore, it is urgent to design a device for improving underwater pipeline welding skills to solve the above-mentioned problems. Utility Model Content

[0006] The purpose of the utility model is to provide an underwater pipeline welding skill improvement device, which has the advantage of quickly adapting to the requirements of dense small pipeline welding during the training process and solves the problems mentioned in the background technology.

[0007] To achieve the above objectives, the specific technical solution of the underwater pipeline welding skill improvement device of the present invention is as follows:

[0008] A device for improving underwater pipeline welding skills includes a device body. A grid plate is provided in the device body, and the device body is divided into a lower welding area and an upper welding area by the grid plate. A first disc is provided on the lower welding area, and a pipeline is installed on the first disc. By welding the pipeline to the first disc on the lower welding area, the welding technical requirements of 5G positions at different angles are met. A second disc is provided on the upper welding area, and a pipeline is installed on the second disc. By welding the pipeline to the second disc on the upper welding area, the welding technical requirements of 2G positions at different angles are met.

[0009] Furthermore, the pipeline includes pipe fittings and elbows, and pipe fittings at different angles are connected through the elbows.

[0010] Furthermore, a false valve is provided on the pipe fitting.

[0011] Furthermore, the device body includes a base plate, a column and an upper frame, the base plate is fixedly connected to the column, and one end of the column away from the base plate is fixedly connected to the upper frame.

[0012] Furthermore, the bottom plate, the columns and the grid plate constitute the lower welding area.

[0013] Furthermore, the first disc is arranged on the base, and the distance between the first disc and the base is 300 mm.

[0014] Furthermore, there are two first discs on the bottom plate, and the pipelines between the two first discs are connected.

[0015] Furthermore, a plurality of square steels are connected to one end of the bottom plate away from the column, and a first gap for a forklift to be inserted is provided between the square steels.

[0016] Furthermore, the upper frame, the columns and the grid plates constitute an upper welding area.

[0017] Furthermore, the second disc is arranged on the upper frame, and the pipeline of the second disc is connected to the pipeline between the first discs.

[0018] The utility model has the following advantages: by targeting the characteristics of dense arrangement, small spacing, limited operating space, small pipe diameter, thin pipe wall, fast change of welding angle, and great operation difficulty of underwater manifold pipelines, an operating platform is produced for actual underwater manifold projects, and the skills of 2G and 5G position welding of dense pipelines, pipe-to-pipe welding, and pipe-to-elbow welding are improved, and the welder's welding skills in narrow spaces are improved, so that the welder can quickly adapt to the requirements of dense small pipeline welding during the training process, and the utility model is highly practical. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a structural diagram of the pipeline welding skill improvement device of the utility model;

[0020] Explanation of the markings in the figure: 1. Device body; 11. Bottom plate; 12. Grille plate; 13. Upper frame; 14. Column; 15. Square steel; 2. Lower welding area; 21. Upper welding area; 3. First disc; 32. Second disc; 4. Pipeline; 41. Pipe fitting; 42. Elbow; 43. Dummy valve. DETAILED DESCRIPTION

[0021] To make the purpose, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the embodiments described are 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 those skilled in the art without creative work are within the scope of protection of the present invention.

[0022] Those skilled in the art will appreciate that, although some embodiments herein include certain features included in other embodiments but not other features, the combination of features from different embodiments is intended to be within the scope of the present invention and to form different embodiments. For example, in the claims, any one of the claimed embodiments may be used in any combination.

[0023] Please refer to the attached Figure 1 The utility model describes a device for improving underwater pipeline welding skills.

[0024] Currently, the industry's approach to improving skills in welding small super-duplex stainless steel pipelines is: first, conduct two weeks of skills training before project commencement, starting with practice on 2-inch pipelines and gradually moving on to training on 1-inch pipelines and smaller, to adapt to the welding requirements of small pipelines. Second, create skill training tooling, set up obstacles above and below the pipelines, and conduct specialized training. However, this method only considers the impact of pipeline spacing on welding during construction and fails to fully account for the welder's operating space, such as their position and line of sight. This leads to insufficient welding skills in confined spaces and poor welding quality. Therefore, the above two methods cannot meet the requirements of underwater manifold control system pipeline welding construction.

[0025] Therefore, the welding skill improvement device includes a device body 1, a grid plate 12 is provided in the device body 1, and the device body 1 is divided into a lower welding area 2 and an upper welding area 21 by the grid plate 12. A first disc 3 is provided on the lower welding area 2, and the first disc 3 is installed with a pipeline 4. By welding the pipeline 4 of the first disc 3 on the lower welding area 2, the welding technical requirements of different angles 5G positions can be met. A second disc 32 is provided on the upper welding area 21, and the second disc 32 is installed with a pipeline 4. By welding the pipeline 4 of the second disc 32 on the upper welding area 21, the welding technical requirements of different angles 2G positions can be met.

[0026] This welding skill improvement device can improve welding skills for small pipelines smaller than 1-inch, 3 / 4-inch, 1 / 2-inch, and 3 / 8-inch. This platform, designed to address the densely packed, closely spaced, and difficult-to-operate layout of underwater manifold pipelines, along with the small pipe diameters, thin walls, and rapidly changing welding angles, allows welders to quickly adapt to the requirements of densely packed small pipeline welding during training. It also allows for welding in the 2G and 5G positions of densely packed pipelines.

[0027] Furthermore, the pipeline 4 includes a pipe fitting 41 and an elbow 42. Pipe fittings 41 at different angles are connected through the elbow 42. The pipe fitting 41 can be placed in different directions such as front, back, left, right, up and down, and then connected through the elbow 42. By placing the pipe fitting 41 in different directions, welders can weld pipelines 4 and elbows 42 or pipelines 4 to pipelines 4 in different directions during training, enriching the welding training process of welders, and welding with the elbow 42 and the pipe fitting 41 can meet the welding technical requirements of 2G and 5G.

[0028] Furthermore, a dummy valve 43 is provided on the pipe fitting 41, and the dummy valve 43 can be provided between the pipe fittings 41 and the pipe fittings 41. An elbow 42 is provided near the dummy valve 43. By providing the dummy valve 43, the welder can weld the pipe fitting 41 and the dummy valve 43. By providing the elbow 42 near the dummy valve 43, the welding between the elbow 42 and the pipe fitting 41 meets the welding technical requirements of 2G and 5G.

[0029] Specifically, the device body 1 includes a bottom plate 11 , a column 14 and an upper frame 13 . The bottom plate 11 is fixedly connected to the column 14 , and one end of the column 14 away from the bottom plate 11 is fixedly connected to the upper frame.

[0030] Preferably, the bottom plate 11, the columns 14 and the grid plate 12 form the lower welding area 2. By setting the lower welding area 2, welding in a narrow space underwater is simulated, and the welder needs to bend over to weld, thereby further improving the welding quality of the welder.

[0031] Specifically, the first disc 3 is provided on the base, and the distance between the first disc 3 and the base is 300 mm to conform to actual construction equipment.

[0032] Preferably, there are two first discs 3 on the bottom plate 11, and the pipeline 4 between the two first discs 3 is connected. In other embodiments of the present invention, there can be multiple first discs 3 as long as the bending over welding in a small space can be satisfied.

[0033] Furthermore, a plurality of square steels 15 are connected to one end of the bottom plate 11 away from the column 14, and a first gap for a forklift to be inserted is provided between the square steels 15. Preferably, the specific number of the square steels 15 is 5, and the forklift can be inserted through the first gap to meet the circulation requirements.

[0034] Preferably, the upper frame 13, the columns 14 and the grid plate 12 form an upper welding area 21. By setting up the upper welding area 21, welding in a narrow space underwater is simulated, and the welder needs to lean over and weld towards the upper frame 13, further improving the welding quality of the welder.

[0035] Specifically, the second disc 32 is arranged on the upper frame 13, and the pipeline 4 of the second disc 32 is connected to the pipeline 4 between the first disc 3; by connecting the pipeline 4 of the second disc 32 with the pipeline 4 between the first disc 3, the pipelines 4 are oriented in different directions and are connected in different directions to meet the needs of welding training in all directions.

[0036] Preferably, a 1 / 2 dummy valve 43 is installed at 50 mm on the upper frame, and a 90-degree elbow 42 is provided on each side of the dummy valve 43, which is consistent with the actual construction equipment and meets the welding technical requirements of 2G and 5G.

[0037] Preferably, the upper frame is provided with four lifting ears, which can be used to cooperate with the hook of the crane for lifting.

[0038] The underwater manifold control system pipeline welding skill improvement device can improve welding skills for small pipelines below 1 inch, including 3 / 4 inch, 1 / 2 inch, and 3 / 8 inch pipelines. Furthermore, given the dense arrangement and close spacing of underwater manifold pipelines, limited operating space, small pipe diameters, thin walls, rapid changes in welding angles, and high operational difficulty, an operating platform similar to actual underwater manifold projects has been developed, enabling welders to quickly adapt to the requirements of dense small pipeline welding during training. This device can be used to improve skills in welding dense pipelines in 2G and 5G positions, as well as welding pipes to fittings and pipe fittings to elbows. This improves welders' skills in confined spaces, meeting the technical requirements of underwater projects, improving welding quality, and reducing construction costs.

[0039] This welding skills improvement device is developed based on the characteristics of densely arranged underwater manifold pipelines, small spacing, and limited operating space. It can specifically improve welders' pipeline welding skills in confined spaces, enabling welders to quickly adapt to the requirements of welding small super duplex stainless steel pipelines.

[0040] Obviously, the above embodiments of the present invention are merely examples for the purpose of clearly illustrating the present invention, and are not intended to limit the implementation methods of the present invention. Those skilled in the art will appreciate that other variations or modifications can be made based on the above description. It is not necessary and impossible to enumerate all implementation methods here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention shall be included within the scope of protection of the claims of the present invention.

Claims

1. A device for improving underwater pipeline welding skills, characterized in that: The device includes a device body, which is provided with a grid plate. The device body is divided into a lower welding area and an upper welding area by the grid plate. The lower welding area is provided with a first disc, and the first disc is installed with pipelines. By welding the pipelines of the first disc on the lower welding area, the welding technical requirements of 5G positions at different angles can be met. The upper welding area is provided with a second disc, and the second disc is installed with pipelines. By welding the pipelines of the second disc on the upper welding area, the welding technical requirements of 2G positions at different angles can be met.

2. The underwater pipeline welding skill improvement device according to claim 1 is characterized in that: The pipeline includes pipe fittings and elbows, and pipe fittings at different angles are connected through elbows.

3. The underwater pipeline welding skill improvement device according to claim 2, characterized in that: A false valve is provided on the pipe fitting.

4. The underwater pipeline welding skill improvement device according to claim 1, characterized in that: The device body comprises a bottom plate, a column and an upper frame. The bottom plate is fixedly connected to the column, and one end of the column away from the bottom plate is fixedly connected to the upper frame.

5. The underwater pipeline welding skill improvement device according to claim 4 is characterized in that: The bottom plate, columns and grid plates constitute the lower welding area.

6. The underwater pipeline welding skill improvement device according to claim 5, characterized in that: The first disc is arranged on the base, and the distance between the first disc and the base is 300 mm.

7. The underwater pipeline welding skill improvement device according to claim 6, characterized in that: There are two first discs on the bottom plate, and the pipelines between the two first discs are connected.

8. The underwater pipeline welding skill improvement device according to claim 4, characterized in that: A plurality of square steels are connected to one end of the bottom plate away from the upright column, and a first gap for a forklift to be inserted is provided between the square steels.

9. The underwater pipeline welding skill improvement device according to claim 4, characterized in that: The upper frame, columns and grid plates constitute the upper welding area.

10. The underwater pipeline welding skill improvement device according to claim 9, characterized in that: The second disc is arranged on the upper frame, and the pipeline of the second disc is connected with the pipeline between the first discs.

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