A hoisting and transportation process for offshore wind power jacket

Abstract

The invention discloses a lifting and transporting process for an offshore wind power jacket. The lifting and transporting process comprises hull positioning, lifting point selecting, wire rope selecting, transportation fetal frame selecting, transportation fetal frame mounting, wind power jacket pre-lifting, wind power jacket lifting, and wind power jacket binding. The lifting and transporting process for offshore wind power jacket has the advantages that the process steps are smooth and orderly, the lifting is stable, the binding is firm, and the problem that current horizontal lifting cannot be realized during the lifting process due to eccentricity of the gravity center of the wind power jacket is effectively solved by the setting of the lifting point selecting in step B, the levelnessand smoothness of wind power jacket lifting are realized, and therefore the efficiency and accuracy of the wind power jacket is improved when the wind power jacket is brought to the ship deck.

Description

technical field [0001] The invention belongs to the field of marine transportation and manufacturing, and in particular relates to a hoisting and transportation process for an offshore wind power jacket. Background technique [0002] Due to the large size of the wind power jacket foundation, the general construction factories are located in rivers or seasides to facilitate transportation. The wind power jacket foundation is divided into three parts: the jacket connection section, the steel platform and the jacket main structure. The upper jacket connection The vertical main cylinder is arranged in the middle of the section, with four legs on the four sides, a steel platform in the middle, and the main structure in the lower part. There are ship parts between the two legs, railings and ladders on the ship parts, and in the other two There are other auxiliary components between the two legs, and the barge is docked on the shore, and the barge is hoisted by relief. [0003] Pa...

AI Technical Summary

Problems solved by technology

[0003] Patent No. CN107089584A, a jacket hoisting and binding process, proposes the process steps of hoisting and binding the entire jacket, which effectively solves the current problems in the hoisting of the whole machine, but the patent still has the following disadvantages: 1. The wind power jacket Direct hoisting to the transport ship and lashing with the transport ship. Due to the throwing potential of the deck plane of the transport ship and the unevenness of the deck due to long-term loading of goods, the wind power jacket is directly hoisted to the transport ship, which is easy to cause damage during transportation. The sloshing of the jacket cannot meet the transportation requirements; 2. When lashing, the wire ropes are directly crossed and cable-stayed to the wind power jacket. Due to the particularity of hull transportation, this lashing step has poor connection stability between the wind power jacket and the transport ship, and the wire ropes are easy to rub Damage to the outer surface of the wind turbine jacket

More importantly, due to the arrangement of the auxiliary components and berthing parts on the wind power jacket, the center of gravity of the wind power jacket is not the center of the wind power jacket, but eccentric, so the positions of the four lifting points are not correct. Symmetrical, so in the hoisting process, how to effectively select the lifting point to ensure that the hoisting process is completely horizontal is a difficult problem in the hoisting and transportation of wind power jackets

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