On the Key Technology for Offshore Platform Crane Slewing Bearing Replacement
Aiming at the serious dependence on floating crane lifting vessel for the failure repair operation of the slewing bearing of the pedestal crane of offshore oil production platform under the traditional mode and its drawbacks such as high mainte-nance cost,high risk of berthing,and long mobilization period,the key technology and feasibility of offshore replacement of the slewing bearing were researched.Drawing on the cylinder jacking method,which is widely used in construction displacement and large-scale equipment dismantling and installation,a technical solution was proposed to realize the replacement of slewing bear-ings of offshore platform cranes by using the cylinder jacking method without the use of floating cranes.Through comprehensive calculations of gravity parameter,cylinder jacking force,jacking point force and the static analysis of each part of a platform crane,it was concluded that the anti-overturning stability of bearing replacement crane using cylinder lifting method can meet the application requirements.By designing the suitable jacking tooling,refining the operating steps,standardizing the operating pro-cedures,the replacement of faulty bearings of the platform crane was completed by using the cylinder jacking method.The re-search and application of this project broke through the long-term restriction that the structural parts maintenance of offshore plat-form cranes must use floating cranes,at the same time,it can improves the efficiency and safety of offshore platform crane main-tenance,and provides reference for similar work on offshore platform cranes in the future.
万方数据
维普
