超大型浮吊重载打捞波浪补偿系统的关键技术

Vital technologies on heavy-loading salvage for wave compensation system of ultra-large floating cranes

分析了超大型浮吊的重载打捞作业时受波浪影响下吊重摆动的原因,介绍了发明专利的波浪补偿系统:包括机械系统、液压系统、监控系统;机械系统由起升卷筒、各套滑轮、钢丝绳、大吨位吊钩组成;液压系统由液压油缸和蓄能器等组成;监控系统对浮吊船体位移、浮吊起吊重物位移监测并对其进行控制.解决了超大型浮吊重载打捞时、重物被吊出水面的瞬间,由于重物体积庞大,海水形成涡流使浮吊船体船倾且摇摆不定,而吊重也随之摇摆,无法控制的问题;解决了超大型浮吊重载打捞时的关键技术问题.

In this study,the impacts of sea waves on cargo swings are first speculated based on ultra-large floating cranes during heavy-loading salvage.Then,a patented wave compensation system is developed regarding mechanical,hydraulic and monitoring systems.In particular,the mechanical system consists of hoisting drum,sheaves,wire rope and heavy-loading hook;the hydraulic system is composed of hydraulic cylinder and accumulator;and the monitoring system is used to detect and control ship and hoisting cargo displacements.Finally,the vital technological problem has been resolved,viz.,the swings of ship and cargo,which produce sea vortex,are uncontrollable when the large-size cargo emerges from sea water.