Marking method for Mark3 type LNG ship reference axis

A reference axis and LNG ship technology, applied in the field of marking the reference axis of Mark3 LNG ships, can solve the problems that the corrugated plates cannot form rings, and the catastrophic consequences of the construction of the enclosure system, etc.

Active Publication Date: 2021-04-27
HUDONG ZHONGHUA SHIPBUILDINGGROUP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Therefore, the key to whether the corrugation can form a ring is determined by the reference line of each surface. If the reference line is determined to be deviate

Method used

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  • Marking method for Mark3 type LNG ship reference axis
  • Marking method for Mark3 type LNG ship reference axis
  • Marking method for Mark3 type LNG ship reference axis

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Embodiment Construction

[0021] 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.

[0022] 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 marking method for a Mark3 type LNG ship reference axis. The marking method comprises the steps that the internal size of a liquid cargo tank is measured; the actual midpoint position of an edge line is marked; a deviation value between a reference line and an actual midpoint is calculated; datum lines BR1 and BR2 of each bulkhead are drawn; and the perpendicularity of the datum line BR1 and the datum line BR2 is checked. According to the marking method for Mark3 type LNG ship reference axis, the datum line of each surface is accurately marked and the datum line of each surface forms a ring.

Description

technical field [0001] The invention belongs to the technical field of shipbuilding, and in particular relates to a method for marking a reference axis of a Mark3 type LNG ship. Background technique [0002] Mark 3 containment system is currently the mainstream LNG ship containment system technology. All aspects of the Mark 3 containment system should be considered in the construction, and the corrugated plates should form rings in three directions, such as figure 1 As shown, forming an organic whole. Whether the corrugation of the corrugated plate can form a ring in each direction is determined by the insulating module installed under the corrugated plate, and the position of the insulating module on each surface is determined by the reference line (BR1, BR2). Therefore, the key to whether the corrugation can form a ring is determined by the reference line of each surface. If the reference line is determined to deviate, the subsequent installation of corrugated plates will...

Claims

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Application Information

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IPC IPC(8): B25H7/04
CPCB25H7/04
Inventor 蒋贵全黄华兵戴伟晓鲍作益
Owner HUDONG ZHONGHUA SHIPBUILDINGGROUP
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