Pipe ship connecting method suitable for deep sea mining

A deep-sea mining and pipe string technology, which is applied in the mining of minerals, special mining, pipes/pipe joints/fittings, etc., can solve the problems of excessive bending moment at the top of the hard pipe and damage to the hard pipe.

Pending Publication Date: 2021-04-16
武汉船舶设计研究院有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] The invention provides a pipe-ship connection method suitable for deep-sea mining. The problem of failure and damage is guaranteed to ensure the safety and reliability of the entire mining project

Method used

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  • Pipe ship connecting method suitable for deep sea mining
  • Pipe ship connecting method suitable for deep sea mining
  • Pipe ship connecting method suitable for deep sea mining

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Embodiment Construction

[0042] Preferred embodiments of the present invention are described below, and it should be understood that the preferred embodiments described here are only used to illustrate and explain the present invention, and are not intended to limit the present invention.

[0043] combine Figure 1 to Figure 3 As shown, a kind of pipe-ship coupling method suitable for deep-sea mining provided by the present invention comprises the following steps:

[0044] S1. After installing the support plate 1 on the mining platform 2, lower the adjusting nipple 3 and the telescopic device 4, connect the telescoping device 4 to the last hard pipe 5, and then lift the pipe composed of the adjusting nipple 3 and the telescoping device 4 string until the pup joint 3 is adjusted until the load-bearing shoulder is higher than the upper end surface of the support plate 1;

[0045] S2. Install the core bushing unit 6 in the support plate 1 to clamp and adjust the pup joint 3;

[0046] S3. After lowering...

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Abstract

The invention relates to a pipe ship connecting method suitable for deep sea mining. The method comprises the steps that S1, a supporting disc is installed, an adjusting short section and a telescopic device are lowered, the telescopic device is connected with the last hard pipe, and a pipe string composed of the adjusting short section and the telescopic device is lifted; S2, a core supplementing unit is installed in the supporting disc; S3, after a spherical joint is lowered, the spherical joint is connected with the adjusting short section, and the core supplementing unit is dismounted; S4, a pipe string of the spherical joint, the adjusting short section and the telescopic device is lowered to a joint of a tensioning ring on the telescopic device and a steel wire rope on a tensioner, and the core supplementing unit is installed again; S5, the tensioner and the tensioning ring are connected by means of the steel wire rope; S6, an inner cylinder and an outer cylinder of the telescopic device are unlocked, and the core supplementing unit and the spherical joint are lifted until a shaft shoulder of the spherical joint rises to the surface of a mining platform; and S7, a clamping disc is installed, and the spherical joint is lifted. The method has the advantages of improving and reducing the bending stress of the end part of a pipeline, compensating the influence of the heaving motion of a mining operation platform on a hard pipe system, and ensuring smooth realization of ore pulp conveying.

Description

technical field [0001] The invention relates to the technical field of deep-sea mining, in particular to a pipe-ship connection method suitable for deep-sea mining. Background technique [0002] Deep sea mining engineering is a complex system engineering involving many disciplines. As the most important component of marine mining - the underwater transportation system, it undertakes the task of transporting the collected seabed ore slurry to the surface platform. Underwater equipment such as underwater mining vehicles, hoses, relay stations, and lift pumps. In mining operations, affected by environmental factors such as wind, waves, and currents, mining platforms will experience heave movements, which will cause fluctuations in the distance between the platform and the seabed, and underwater pipe strings will cause reflections due to the influence of heave movements. The impact will cause impact on the pipe string and the operating platform. At the same time, there will be...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16L5/00F16L27/04F16L27/08E21C50/02
Inventor 李源杨高胜陈丹东余倩谢梦琪杨树森唐颖
Owner 武汉船舶设计研究院有限公司
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