Floating crane ship

Abstract

The invention discloses a floating crane ship. A hull is provided with a full-circle slewing main crane. Two main hooks of the full-circle slewing main crane are connected with a main hook lifting winch and controlled to make lifting motion by the main hook lifting winch. An auxiliary hook is connected with an auxiliary hook lifting winch and controlled to make lifting motion by the auxiliary hooklifting winch. When a boom is parallel to the length direction of the hull, the main hooks are located over a prow, and the auxiliary hook is located on the front side of the prow. The hull is provided with an eight-point positioning mooring system, the bow of the hull is provided with a first positioning mooring point and a second positioning mooring point, and the stern of the hull is providedwith a third positioning mooring point and a fourth positioning mooring point. The full-circle slewing main crane of the floating crane ship has the bottom-sitting ability, the operating range is notlimited, the piling project of a 9 mw fan foundation can be met, the construction range is wider, 1300 t full-circle slewing lifting operation can be achieved, the high stability is achieved after positioning is conducted by the eight-point positioning mooring system, and propellers are configured on the front side and the rear side of the hull correspondingly, so that the hull can automatically move in a filed, and construction is convenient and fast.

Description

technical field [0001] The invention relates to the technical field of ocean engineering, in particular to a floating crane. Background technique [0002] The wind power foundation construction of offshore wind farms is inseparable from large lifting vessels. Floating cranes can not only carry out offshore wind power foundation construction in deep seas, but also carry out beach operations in offshore waters. As my country's offshore wind power construction moves from shallow water to deep water, large construction vessels have become the focus of research. Floating cranes have to sit on the beach to carry out wind turbine foundation construction. Once they enter the deep sea, they cannot provide a stable platform for adjusting the verticality of the piles. Moreover, these ships are mostly used for the construction of wind turbine foundations below 4mw, and the foundation piles need to be lifted with slideways. , it is impossible to turn over the foundation piles in the ai...

AI Technical Summary

Problems solved by technology

Floating cranes have to sit on the beach to carry out wind turbine foundation construction. Once they enter the deep sea, they cannot provide a stable platform for adjusting the verticality of the piles. Moreover, these ships are mostly used for the construction of wind turbine foundations below 4mw, and the foundation piles need to be lifted with slideways. , it is impossible to turn over the foundation piles in the air. The self-elevating wind power installation platform is equipped with a pile holder. The platform has a small deck area and requires a large barge to cooperate with the construction. The cost of the platform is high, which is about twice that of the floating crane. The capacity is far less than that of large floating cranes, and its working sea area is limited to a water depth of 30m

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