Heavy load salvage wave compensation system of super large floating crane

Abstract

The invention relates to a heavy load salvage wave compensation system of a super large floating crane, which comprises a mechanical system, a hydraulic system, a monitor system, control of a hydraulic oil cylinder, control of an accumulator and the like, wherein the mechanical system consists of a lifting drum, a plurality of sets of pulley, a steel wire rope and a large tonnage lifting hook, the hydraulic system consists of an oil cylinder, the accumulator, the hydraulic oil cylinder and a hydraulic valve, and the monitor system consists of a floating crane body displacement monitor, a floating crane ship body displacement monitor and a floating crane lifting heavy weight displacement monitor. The invention solves the problems that when the super large floating crane carries out heavy load salvage, and at the moment that a heavy weight is lifted out of water, because the heavy weight has large volume, seawater forms an eddy current to enable a floating crane ship body to be inclined and swing, and a lifting weight also swings along with the floating crane ship body and can not be controlled, solves the problems that when a large structure is lifted on the sea, waves influence the floating crane ship body to lead to difficult butting of marine platforms to ensure goods to be safely fall on a ship deck or safe offshore platform installation and allows that the ship has certain inclination to be suitable for tough working conditions of marine operation.

Description

technical field [0001] The invention relates to the field of port heavy machinery, in particular to the fields of deep sea salvage and marine heavy industry. Background technique [0002] Large-scale floating crane is a kind of water lifting equipment that can carry out fixed-point construction operations in waterways or coastal waters, such as the installation of offshore bridges, large-scale hoisting of offshore oil platforms, salvage of sunken ships, etc., during fixed-point lifting construction operations. Floating cranes are divided by the parameter of lifting capacity: those with a lifting capacity of less than 1,000 tons are called small floating cranes, those with a lifting capacity of 1,000 tons to 2,000 tons are medium-sized floating cranes, and those with a lifting capacity of 2,000 tons to 4,000 tons are large floating cranes. The lifting capacity of more than 4,000 tons is called super-large floating crane; with the rapid development of marine engineering heavy ...

AI Technical Summary

Problems solved by technology

At this time, the control system controls the extension of the hydraulic oil cylinder to absorb the excess hoisting wire rope, ensuring that the wire rope is in a tensioned state, and the hoisted goods will not cause a large swing because there is no excitation of the lifting wire rope for relaxation and tension, which solves the problem of excessive lifting. When the large-scale floating crane is salvaged with heavy loads, the hull is swaying, and the hoisting weight is also swaying, and even turmoil occurs until it becomes uncontrollable.

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