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Pipe-ship connection method suitable for deep-sea mining

A technology for deep-sea mining and hard pipes, which is applied in mineral mining, special mining, earthwork drilling and mining, etc. It can solve problems such as angle deviation, cracks, and bending of hard pipes

Active Publication Date: 2020-05-12
武汉船舶设计研究院有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] The technical problem to be solved by the present invention is to provide a pipe-ship connection method suitable for deep-sea mining, which solves the problem of angular deviation and heave displacement of the hard pipe due to the action of underwater ocean currents during the operation of the deep-sea mining project, which causes the hard pipe to be squeezed. The problem of bending or cracking under pressure to ensure the safe and reliable operation of the entire mining project

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  • Pipe-ship connection method suitable for deep-sea mining
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Embodiment Construction

[0018] combine figure 1 , figure 2 As shown, the pipe-ship connection method suitable for deep-sea mining proposed by the present invention involves hardware and systems including ball joint 1, adjusting pup joint 2, telescopic device 3, chuck 4, heave compensation system 5, and hydraulic control system 6 , riser running tool, lifting system. Among them, the ball joint 1, the telescopic device 2 and the adjusting nipple 3 form a pipe-to-vessel connection device to compensate the heave displacement and angular displacement of the pipeline generated by waves. In the process of lowering and lifting the conveying hard pipe, the chuck 4 is used as the suspension carrier of the underwater conveying system. The heave compensation system 5 can reduce the influence of heave motion impact load on the surface support platform of heavy-duty transport systems such as hard pipes under harsh sea conditions, keep the position of the underwater relay station relative to the seabed stable, a...

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Abstract

The invention relates to a pipe-ship connection method suitable for deep-sea mining, and belongs to the field of deep-sea mining. A ball joint, a telescopic device and an adjustable short section forma pipe-ship connection device for compensating pipeline heave displacement and angular displacement produced by waves. A clamping plate is used as an underwater conveying system hanging and bearing body in the hard pipe lowering and elevating-conveying process. Through heave compensation systems, the impact on a water surface supporting platform due to a heavy load system heave motion impact loadunder the severe sea condition is reduced, an ore pulp is conveyed stably relatively, the fatigue damage and the dynamic compression risk of an underwater conveying system are retarded, and the overall operation safety is improved. A hydraulic control system provides a power source for the pipe-ship connection device. The pipe-ship connection method suitable for deep-sea mining provided by the invention solves the problem that heave compensation system hard pipes drift to touch a moon pool under the circumstance that the horizontal direction is unlimited; avoids the risks of butt-joint and configuration of an ore pulp conveying hose under a base platform and a test link; and has double safety guarantees, can realize quick switch and recovery under the emergency state, and provides convenience for offshore layout and recovery work.

Description

technical field [0001] The invention relates to the field of deep-sea mining, in particular to a pipe-ship connection method suitable for deep-sea mining. Background technique [0002] As a complex system engineering, deep-sea mining engineering integrates a variety of technologies and equipment from multiple disciplines and fields. The deck of the mining ship is equipped with numerous water surface support system equipment, which is a support platform for the deployment of mining equipment such as recovery mining vehicles, hoses, conveying hard pipes, relay stations and lift pumps. The hard pipe system is suspended under the mining vessel and deployed hundreds of meters to thousands of meters underwater. It is a key component connecting underwater mining vehicles, hoses, relay stations and lift pumps. Its main function is to provide slurry The conveying channel carries the deployment and recovery of underwater equipment, as well as the fixing of umbilical cables of underwa...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E21C50/00
CPCE21C50/00
Inventor 李源陈丹东杨高胜李文豪施威
Owner 武汉船舶设计研究院有限公司
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