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Method for butting and assembling of bottom sections of chemical tanker

A chemical and ship bottom technology, which is applied to ships and other directions, can solve problems such as low efficiency and high cost, and achieve the effects of reducing production costs, meeting construction accuracy, and ensuring construction quality

Inactive Publication Date: 2020-02-14
HUDONG ZHONGHUA SHIPBUILDINGGROUP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Under the traditional operation method, the accuracy of the butt joint assembly of the stainless steel bottom section can only be confirmed by filming, magnetic particle and other flaw detection methods, which is not efficient and costs a lot

Method used

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  • Method for butting and assembling of bottom sections of chemical tanker
  • Method for butting and assembling of bottom sections of chemical tanker
  • Method for butting and assembling of bottom sections of chemical tanker

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Embodiment Construction

[0017] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0018] In describing the present invention, it should be understood that the terms "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", The orientation or positional relationship indicated by "horizontal", "top", "bottom", "inner", "outer", etc. are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the descriptio...

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Abstract

The invention discloses a method for butting and assembling of bottom sections of a chemical tanker. The method comprises the following steps of scribing a theoretical line used for mounting a stringer on a framework surface of the bottom sections; scribing a first inspection line at a preset distance from the theoretical line on the framework surface; mounting the stringer on the framework surface, and measuring an offset distance between the stringer and the first inspection line; re-punching the first inspection line in the cargo hold surface to form a second inspection line; translating the second inspection line in the direction of the stringer for the offset distance on a cargo hold surface to form a mounting line; and butting and assembling a side section or a middle longitudinal compartment section on the cargo hold surface of the bottom section with reference to the mounting line. According to the method, under the condition that segmented plates are not damaged, the actual mounting precision of a bottom section butting structure is verified. Meanwhile, a large amount of nondestructive flaw detection operation is avoided while the ship construction precision is met, the butting operation production cycle is shortened, and the production cost is reduced.

Description

technical field [0001] The invention belongs to the technical field of shipbuilding, and in particular relates to a method for butt joint assembly of chemical ship bottom sections. Background technique [0002] The internal areas of chemical tanker cargo tanks are all made of stainless steel, and there are many forms of docking nodes in the design of the cargo tank area. At the same time, due to the particularity of stainless steel materials, extremely high control requirements are put forward for the hull precision of the stainless steel area. Large deviations in the structure will lead to problems such as insufficient butt joint strength, weld cracking, and stress corrosion of stainless steel, resulting in huge waste of repair costs. The bottom section of the chemical tanker will be accurately docked with various types of sections such as the side, the middle compartment, and the horizontal tank in the follow-up docking operation, and the docking workload is huge. Under t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B63B73/00
Inventor 吉李祥李晨赵协陆勇彬刘江
Owner HUDONG ZHONGHUA SHIPBUILDINGGROUP
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