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Methods for installing and welding three-facet rubber tiles on liquidized natural gas ship

A technology of liquefied natural gas and trihedron, which is applied in the direction of assembly machines, auxiliary devices, welding equipment, etc., can solve the problems of large differences in operators, and achieve the effect of saving cost and time and improving efficiency

Active Publication Date: 2007-09-05
HUDONG ZHONGHUA SHIPBUILDINGGROUP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to the large differences among operators, there must be a set of strict construction methods to ensure that every product produced meets the standard.

Method used

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  • Methods for installing and welding three-facet rubber tiles on liquidized natural gas ship
  • Methods for installing and welding three-facet rubber tiles on liquidized natural gas ship
  • Methods for installing and welding three-facet rubber tiles on liquidized natural gas ship

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Embodiment Construction

[0041] The present invention will be described in further detail below in conjunction with specific examples, but the protection scope of the present invention should not be limited thereby.

[0042] The Invar trihedron is composed of eight designed and manufactured component plates, and the eight scattered component plates are assembled and welded into a complete Invar trihedron. The method of the present invention includes the assembly method of the Invar trihedron and the Invar trihedron welding method, the assembly method of the Invar trihedron is to form the Invar trihedron plate No. 1, No. 2, No. 3, No. 4, No. 5, No. 6 The method of assembling the plate 6, the seventh plate 7 and the eighth plate 8 into an Invar trihedron by using the internal support plate and the angle support plate;

[0043] The described Invar trihedral assembling method comprises the steps:

[0044] ①According to the drawings, on the first plate 1, the second plate 2, the third plate 3, the fourth ...

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Abstract

A technology for assembling and welding the triangular body used for the liquefied natural gas ship includes an assembling step and a welding step. For said assembling step, the 8 plates constituting said triangular body are supported by internal supporting plate and angular supporting plate to splice said triangular body. For said welding step, the diagonal cross welding is used in its 4 welding region.

Description

technical field [0001] The invention relates to the manufacture of a liquefied natural gas ship, in particular to a welding method for an invar trihedron used for a liquefied natural gas ship. Background technique [0002] Liquefied natural gas carriers (hereinafter referred to as LNG carriers) are playing an increasingly important role in the transportation of liquefied natural gas around the world. The invar components of LNG carriers are important components for maintaining low temperatures in their cargo maintenance systems, and the invar trihedron is the invar The most important component of tile parts. Figure 1 is a schematic diagram of the Invar trihedron, which is made by manually assembling the finished Invar trihedral panels and welding them by hand. The accuracy of the Invar trihedron of the LNG ship must be strictly controlled between 227.5±0.7 and the angle within 0-0.5°. Such a high accuracy standard places very high requirements on the skills and patience of ...

Claims

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Application Information

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IPC IPC(8): B23K9/02B23K9/16B23K37/053B23K9/12B23P21/00B25H7/04
Inventor 陈立富沈纯林贺金汉钱海滨
Owner HUDONG ZHONGHUA SHIPBUILDINGGROUP
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