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Testing tool system and testing method for LNG ship liquid cargo compartment three-dimensional board CM nodes

A technology for LNG ships and inspection tooling, applied in the direction of measuring devices, mechanical devices, mechanical measuring devices, etc., can solve the problems of heavy workload, difficult to directly confirm the centerline assembly or inspection of the three-way plate frame, etc., to achieve rapid assembly And the effect of carrying, improving the inspection pass rate and reducing the workload

Active Publication Date: 2017-05-17
HUDONG ZHONGHUA SHIPBUILDINGGROUP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

If the assembly, inspection and correction are carried out in the way of on-site snapping and marking, it is difficult to directly confirm the position of the centerline of the three-way frame and carry out assembly or inspection through conventional means during the on-site construction process, and the workload is huge

Method used

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  • Testing tool system and testing method for LNG ship liquid cargo compartment three-dimensional board CM nodes
  • Testing tool system and testing method for LNG ship liquid cargo compartment three-dimensional board CM nodes
  • Testing tool system and testing method for LNG ship liquid cargo compartment three-dimensional board CM nodes

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Embodiment Construction

[0030] The technical solutions of the present invention will be described in further detail below in conjunction with specific embodiments, but the protection scope of the present invention should not be limited thereto.

[0031] Such as Figure 3-6 As shown, this embodiment is used for the detection tooling system of the three-way plate CM node of the liquid cargo tank of an LNG ship. The detection tooling system includes an inner card model 1 and an outer card model 2. The inner card model 1 is used for the three The centering of the CM joints in the plate assembly stage, the outer card template 2 is used for the verification of the CM joint inspection stage after the three-way plate welding of the liquid cargo tank of the LNG ship, and the three-way plate includes a transverse plate 3, a vertical plate 4 and Slant plate 5, the included angle between described transverse plate 3 and inclined plate 5 is α, engraves on transverse plate 3 the first reference line 31 perpendicul...

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Abstract

The invention discloses a testing tool system for LNG ship liquid cargo compartment three-dimensional board CM nodes. The testing tool system comprises an inner clamping template and an outer clamping template. The inner clamping template is used for aligning the LNG ship liquid cargo compartment three-dimensional board CM node. The outer clamping template is used for verifying in a CM node verification stage after welding of the LNG ship liquid cargo compartment three-dimensional board CM node. The three-dimensional board comprises a transverse board, a vertical board and an oblique board. An included angle between the transverse board and the oblique board is alpha. A first reference line which is perpendicular with the transverse board is engraved on the transverse board. A second reference line which is perpendicular with the vertical board is engraved on the vertical board. According to the testing tool system, testing templates which matches the three-dimensional board are utilized. The testing templates comprise the inner clamping template for quick assembling and loading, thereby ensuring high precision and high stability in assembly. The testing templates further comprise the outer clamping template for after-welding verification. For ensuring high accuracy in final state measurement, the specialized outer clamping template is utilized, thereby truly testing the final deviation of each node.

Description

technical field [0001] The invention belongs to the field of segmented construction of LNG cargo tanks, and in particular relates to a detection tooling system and detection method for CM nodes of three-way plates in liquid cargo tanks of LNG ships, which are used for the assembly of main nodes of the hull in the process of segmented construction and assembly loading. For each node, an inner card template and an outer card template are set up, and the two templates are used together to achieve rapid construction and accurate inspection. Background technique [0002] As we all know, the cost of LNG ships is very expensive, so ship owners have very high requirements on the fatigue life of LNG ships, generally 40 years in the North Atlantic, but in recent years the requirement of 50 years in the North Atlantic is not uncommon. In order to ensure that the ultra-high fatigue life of the ship finally meets the design requirements, it is necessary to strictly monitor and inspect it...

Claims

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Application Information

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IPC IPC(8): G01B5/00
Inventor 张晓彤刘阳何伟忠潘伟昌
Owner HUDONG ZHONGHUA SHIPBUILDINGGROUP
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