Assembling method for broadside section and bilge section of oil ship

Abstract

The invention relates to an assembling method for a broadside section and a bilge section of an oil ship. A left wall pier and a right wall pier are respectively divided into two sections and the two divided sections are respectively integrated with the bilge section and the bottom section on the corresponding side, so that the wall pier used as an independent section is cancelled, the welding of the wall pier and the bilge and bottom is reduced, the difficulty in large folding operation is reduced, the assembling steps are simplified and the working efficiency is increased. The divided broadside section and the divided bilge section are assembled in advance on the ground by taking an external plate as a base bottom, so that the precise control difficulty of the original vertical overlapping hoisting without assembling is greatly reduced. The divided broadside section and the divided bilge section are butt-jointed on the ground, so that the original horizontal welding is converted into common flat welding, the welding quality is promoted, the piling block used for adjusting and aligning is avoided, the repairing rate is greatly reduced, the working efficiency is increased, the time and labor are saved, the manufacturing cost is greatly saved and the quality and beautiful appearance of the external plate are guaranteed.

Description

technical field [0001] The invention relates to an assembly method of side sections and bilge sections of an oil tanker. Background technique [0002] At present, in the manufacturing process of oil tankers, the assembly method of the side section and the bilge section is usually to assemble a plurality of side sections into a total section and then assemble the bilge section, the bottom section and the pier section. The main section of the side is hoisted and carried. The hoisting and loading method is mainly to lift the general section formed by the side section vertically. The section and the bilge section are welded as a whole, such as figure 1 As shown, since the general side section is vertically hoisted and docked with the bilge section, during the lifting and docking process, because the general side section will shake to a certain extent, it is easy to cause the lower mouth of the general side section to be in contact with the bilge section. Due to the misalignmen...

AI Technical Summary

Problems solved by technology

[0002] At present, in the manufacturing process of oil tankers, the assembly method of the side section and the bilge section is usually to assemble a plurality of side sections into a total section and then assemble the bilge section, the bottom section and the pier section. The main section of the side is hoisted and carried. The hoisting and loading method is mainly to lift the general section formed by the side section vertically. The section and the bilge section are welded as a whole, such as figure 1 As shown, since the general side section is vertically hoisted and docked with the bilge section, during the lifting and docking process, because the general side section will shake to a certain extent, it is easy to cause the lower mouth of the general side section to be in contact with the bilge section. Due to the misalignment of the upper mouth of the bilge section, it is difficult to control the accuracy of assembly. Therefore, when the closure seam is found to be misplaced after welding, it is necessary to cut the welded closure seam and re-align the welding, which greatly reduces the work. Efficiency increases the difficulty of operation, and is time-consuming and labor-intensive; if the above problems are not solved, it is necessary to install a card code at the place where the joint is joined, so that the joint joint can be adjusted with the help of the card code, so that the lower mouth of the side general section and the bilge part However, after the welding is completed, the card code needs to be cut off, and then the cut part should be trimmed by carbon planing, grinding and other processes. During the trimming process, it is easy to cause damage to the base metal of the outer plate. Once damaged, It is necessary to repeat repair welding for many times before grinding, which will leave a large number of damaged marks on the base metal of the outer plate, which will affect the quality and appearance of the ship; , the closing seam is on the vertical surface, and horizontal welding is required. At present, the automatic welding technology of horizontal welding is immature. Often unqualified, high repair rate, waste of labor and welding material costs, time-consuming and labor-intensive, low work efficiency

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