Floating mounting and lifting device with motion compensation function

A lifting device and motion compensation technology, which is applied in construction, artificial island, infrastructure engineering, etc., can solve the problems of high manufacturing cost, load deformation, single actuator cannot meet the needs of modern engineering, etc.

Pending Publication Date: 2022-04-12
OCEAN UNIV OF CHINA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In recent years, the load capacity of large-scale equipment has been increasing day by day. The single actuator of the traditional method cannot meet the needs of modern engineering. Hydraulic synchronization technology has been widely used in the field of jacking or translation of large structures.
If during the jacking process, the displacement of each actuator is different due to the movement of the ship, it may cause a certain deformation of the load and cause a major accident.
The jacking device without margin has high requirements on the precision of the control system, the control is difficult and the manufacturing cost is high

Method used

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  • Floating mounting and lifting device with motion compensation function
  • Floating mounting and lifting device with motion compensation function
  • Floating mounting and lifting device with motion compensation function

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Embodiment Construction

[0022] In describing the present invention, it is to be understood that the terms "longitudinal", "transverse", "upper", "lower", "top", "bottom", "inner", "outer" and the like indicate an orientation or position The relationship is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, therefore It should not be construed as a limitation of the present invention.

[0023] In addition, the terms "first" and "second" are used for descriptive purposes only, and cannot be interpreted as indicating or implying relative importance or implicitly specifying the quantity of indicated technical features. Thus, a feature defined as "first" and "second" may explicitly or implicitly include one or more of these f...

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Abstract

The invention discloses a floating mounting lifting device with a motion compensation function, and belongs to the technical field of ocean platform mounting. The device specifically comprises an upper platform in direct contact with an upper module, a lower platform fixedly connected with a barge through a fixing device, an active hydraulic cylinder, a passive hydraulic cylinder, a force sensor, a pose sensor and the like. The active hydraulic cylinder and the passive hydraulic cylinder are connected with the upper platform and the lower platform through spherical hinges, a hydraulic rod is controlled to stretch out and draw back through a hydraulic servo valve, six-degree-of-freedom movement of the upper platform can be achieved, and by combining an attitude sensor and upper computer software calculation, the movement of a barge under the action of wave flow can be compensated while the floating mounting and lifting operation requirements are met. And the barge is kept stable, so that the upper module is transferred to the jacket in a stable state. The device can enlarge an offshore floating bracket installation operation window, reduce the construction risk and improve the operation efficiency.

Description

technical field [0001] The invention relates to the technical field of offshore platform installation, in particular to a float-over installation lifting device with a motion compensation function. Background technique [0002] With the development of block and large-scale offshore platforms, the traditional hoisting method cannot meet its installation requirements, and the floating-over installation of offshore platforms has emerged as the times require. Load transfer is the most important link in the floatover installation process. In this link, the insertion tip of the upper block and the legs are gradually connected and the weight of the block is gradually transferred to the legs of the jacket. The degree of freedom movement brings hidden dangers to the installation operation, and it is necessary to use a reasonable method to compensate for the movement of the ship, reduce the construction risk, and improve the operation efficiency. [0003] In recent years, the load ca...

Claims

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Application Information

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IPC IPC(8): E02B17/08E02B17/00
Inventor 常宗瑜周志鹏郑中强王书杰郭家乐郝兴文
Owner OCEAN UNIV OF CHINA
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