Salvage method based on underwater welding

A technology for underwater welding and welding equipment, which is used in ship salvage, welding equipment, ships, etc., can solve the problems of unsuitable welding of underwater force-bearing components, inability to effectively cope with heavy-lifting equipment, and low quality of welding seams, so as to shorten the time Salvage duration, reduced salvage costs, and a wide range of effects

Active Publication Date: 2020-08-04
交通运输部上海打捞局
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AI Technical Summary

Problems solved by technology

However, for the complex sea bottom, the relevant equipment has great limitations, especially for the hard sea bottom, the existing jacking equipment cannot effectively deal with it.
[0003] The traditional underwater wet welding method has poor weld quality and poor reliability, and is not suitable for welding underwater stress components.

Method used

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Embodiment Construction

[0032] Below with reference to the accompanying drawings, through the description of the embodiments, the specific embodiments of the present invention, such as the shape, structure, mutual position and connection relationship between the various parts, the role and working principle of the various parts, etc., will be further described. detailed instructions.

[0033] like Figure 1-4 Shown, this salvage method comprises the following steps:

[0034] (1) Explore the situation of the sunken ship 1, and clean up the surrounding obstacles that hinder the salvage of the sunken ship 1;

[0035] (2) ROV or diving survey the structure of the pre-welded position of the hoisting eye plate on the sunken ship, and conduct analysis and evaluation to determine the welding position;

[0036] (3) if figure 1 As shown, arrange the eye plate to be welded on the underwater dry welding equipment, lower the dry welding equipment 2, weld the eye plate 3 on the pre-designed position, recover th...

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Abstract

The invention discloses a salvage method based on underwater welding, and belongs to the technical field of salvage. The salvage method is characterized in that a stress eye plate is welded on an underwater sunken ship body, a lifting steel wire is connected with the stress eye plate, and a water surface crane draws the sunken ship out by pulling the lifting steel wire. According to the method, the low-efficiency and difficult-to-construct link of the existing difficult ship salvaging method involved in the sunken ship is avoided, and the salvaging task of any seabed sediment can be achieved.Besides, the method can realize underwater straightening operation for the sunken ship in an underwater non-upright posture so that the salvage method has low requirements on the posture of an underwater difficult ship and is wider in application range in the salvage industry, and the salvage cost can be greatly reduced and the salvage construction period can be shortened by applying the technology.

Description

technical field [0001] The present invention relates to the technical field of salvage, in particular, the present invention relates to a salvage method based on underwater welding. Background technique [0002] The traditional salvage method is to achieve the purpose of salvage by threading the salvage jack at the bottom of the shipwreck. For a long time, breaking through the jack has been the most influential construction link in salvage construction. Recently, through unremitting efforts in industry and colleges and universities, batch after batch of mechanical equipment for breaking through jacks has been developed. However, for complex seabed bottoms, related equipment has great limitations, especially for hard seabeds, the existing jacking equipment cannot effectively deal with it. [0003] The weld quality and reliability of the traditional underwater wet welding method are not high, and it is not suitable for the welding of underwater stress components. With the d...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B63C7/16B23K31/02
CPCB63C7/16B23K31/02
Inventor 陈世海杨鹏魏良孟高定全崔进王金龙
Owner 交通运输部上海打捞局
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