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An automatic detachment device for underwater mooring chains

An automatic dismantling and mooring chain technology, applied in the direction of ships, etc., can solve the problems of high platform risk, long replacement cycle, high cost, etc., and achieve the effect of high replacement efficiency and convenient operation.

Active Publication Date: 2019-10-11
JIANGSU ASIAN STAR ANCHOR CHAIN
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] 1. The replacement cycle is long, usually takes 6 months, and the platform needs to stop production;
[0004] 2. The cost is very high, and heavy lift ships and barges are required for replacement;
[0005] 3. The mooring chain is in a released state for a long time, and the platform is at great risk;

Method used

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  • An automatic detachment device for underwater mooring chains

Examples

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no. 1 example

[0023] An automatic detachment device for underwater mooring chains, comprising a shackle 101 and a link 103 connected in a groove 102 on the shackle 101; the side wall of the shackle 101 is also welded with a fixed structure 1 The link 103 is connected to the fixed structure 1 and the shackle 101 through the detachable structure 2; the fixed structure 1 and the detachable structure 2 are connected by a sliding structure, which is more convenient for installation and disassembly; The structure 1 includes a first structure arranged on the left side wall of the shackle 101, and a second structure arranged on the right side wall of the shackle 101; the first structure includes a first guide rail 1-1, and a connection The handle 1-2 on the side wall of the first guide rail 1-1; the side wall of the first guide rail 1-1 is also provided with a track 1-3; the plane projection of the track 1-3 is I-shaped Structure: In the I-shaped structure, when the drawbar 2-2 drives the pin shaft...

no. 2 example

[0025] An automatic detachment device for underwater mooring chains, comprising a shackle 101 and a link 103 connected in a groove 102 on the shackle 101; the side wall of the shackle 101 is also provided with a fixed structure 1 The link 103 is connected to the fixed structure 1 and the shackle 101 through the detachable structure 2; the fixed structure 1 and the detachable structure 2 are connected by a sliding structure; the fixed structure 1 and the detachable There is also a safety pin 3 between the structures 2; the second guide rail 1-4 and the pin shaft 2-1 are provided with a through hole 4 for installing the safety pin 3; in actual use, the safety pin 3 is provided to cooperate with the The inside of the through hole 4 is more conducive to the connection and fixation of the fixed structure 1 and the detachable structure 2, and the reliability is better.

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Abstract

An automatic removal device for an underwater mooring chain comprises a shackle (101), and a link (103) connected to a recess (102) inside the shackle (101). A side wall of the shackle (101) is further provided with a fixing structure (1). The link (103) is connected to the fixing structure (1) and the shackle (101) via a removable structure (2). A sliding connecting structure is arranged between the fixing structure (1) and the removable structure (2). When used in a deep water area, the removable structure (2) is grasped by a ROV robot, so as to release the link (103). When used in a shallow water area, the removable structure (2) can be controlled by a ROV robot and manual control, so as to release the link (103). The invention is easy to operate, achieves effective replacement, and is safer and more reliable.

Description

technical field [0001] The invention relates to the technical field of mooring chain auxiliary devices, in particular to an easy-to-operate automatic dismounting device for underwater mooring chains. Background technique [0002] The mooring chain is different from the general anchor chain. It is a chain used to fix offshore structural parts such as oil drilling platforms. Due to its harsh working environment, there are many requirements for this kind of chain, such as strength, stiffness and other properties. ; Among them, the mooring chains used on oil platforms are divided into upper chains, middle chains, and bottom chains. Since the upper chains are in the tidal zone, the oxidation and corrosion are the most serious, so the upper chains need to be inspected and replaced regularly. The working water area is deep, reaching a water depth of 2000-3000 meters. The conventional method requires a barge to operate, lift out the mooring chain and replace it. This method has the ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B63B21/20
Inventor 朱桥良陶兴陶安祥陶良凤张卫新李剑张明董鑫
Owner JIANGSU ASIAN STAR ANCHOR CHAIN
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