offshore rig hydraulic lifting syterm

   Jack-up drilling platform hydraulic lifting system is composed of a set of independent hydraulic drive system provides the power to ensure that leg can overcome soil, sand, such as the resistance and lifting platform its own gravity, the leg insert (off) seabed and lift the whole platform. According to the platform lift condition and operation condition, from storage condition, preloading condition of the weight calculation and environmental load calculation results, determine the lifting system of normal lifting capacity, preloading lifting capacity, hull lifting speed. Offshore platform hydraulic lifting system design should meet the following functions: to ensure system have enough power to overcome mud, sand and so on resistance and platform its own gravity, the leg body insert (off) seabed and platform lift; Leg in the work process, smooth operation, no card dead phenomenon; Plug pile (pile drawing) process, hydraulic actuators to meet a certain pitch schedule requirements; System design for self locking leg hydraulic lifting system, in all kinds of work and non-work state, the system can realize locking. Through the computer or the central console complete platform lifting operation.