A method of manufacturing a large pressure vessel

Abstract

The invention relates to a manufacturing method of a large-scale pressure vessel, which mainly includes a plurality of steps such as plate cutting, plate bending, plate welding, welding position grinding, tank body and end caps on both sides, and the like. The present invention can solve the existing problems in the manufacturing process of large pressure vessels a. When welding the tank body, it is necessary to manually use fixing tools to fix the bent plate, and it is necessary to manually control the tight connection of both ends of the plate, and manually control the connection accuracy of the plate. Poor, it increases the difficulty of welding work, the deviation of the docking position directly affects the quality of the pressure vessel, and there are potential safety hazards b. When welding tanks with different specifications, it is necessary to manually adjust the fixing tools, and manual adjustment of the fixing tools cannot be guaranteed. Accuracy, the manual use of fixing tools cannot ensure the stability of the clamped bent plate, and the manual adjustment operation is complicated, which affects the welding efficiency of the tank.

Description

technical field [0001] The invention relates to the technical field of pressure vessel manufacturing methods, in particular to a large pressure vessel manufacturing method. Background technique [0002] A pressure vessel is a closed device that holds gas or liquid and carries a certain pressure. The tank body of the pressure vessel is generally a hollow cylindrical structure in the middle with semicircular end caps at both ends. The preparation process of the pressure vessel mainly includes plate cutting, plate bending, plate welding, welding position grinding and tank body There are multiple steps such as the connection with the end caps on both sides, especially the tank body of the large pressure vessel. During the processing process, the plate is bent into a circle according to the specified size, and then the two ends of the bent plate are connected and welded. The tank body of the container has higher requirements on the process in the manufacture [0003] However, t...

AI Technical Summary

Problems solved by technology

[0003] However, in the manufacturing process of existing large-scale pressure vessels, a. When welding the tank body, it is necessary to manually use fixing tools to fix the bent plates, and it is necessary to manually control the tight connection of both ends of the plates. The accuracy of manual control of the plate connection is poor, increasing The difficulty of welding work, the deviation of the docking position directly affects the quality of the pressure vessel, and there are potential safety hazards. b. When welding tanks of different specifications, it is necessary to manually adjust the fixing tools, and manual adjustment cannot guarantee the accuracy of the fixing tools. Manual use of fixing tools cannot ensure the stability of the clamped bent plate, and the manual adjustment operation is complicated, which affects the welding efficiency of the tank body

[0004] For the technical problems existing in the manufacturing process of large-scale pressure vessels at present, personnel in the related technical field have made investigations and made adaptation improvements, such as the Chinese utility model patent No. 2014205822506, a welding work platform for large-scale pressure vessels , which improves the convenience of welding large pressure vessels, but does not mention the difficulties in the manufacturing process of large pressure vessels mentioned above

Images