News | EQUIPMENT
Deck equipment
of RL-K 7500 Liebherr has unveiled its new RL-K 7500 type, subsea knuckle boom crane, which is specifically aimed at drillships and heavy-liſt vessels. Te device can liſt up to 260tonnes in the air, and handle loads at water depths down to 3,400m. Tanks to the inclusion of the knuckle boom, which allows for a working radius of 50m, loads can be lowered to the water surface with a relatively short rope length between the crane boom head and the water line. Te RL-K 7500’s maximum rope diameter is 100mm,
and its maximum overturning moment is rated 75,000kNm. The crane type incorporates Liebherr’s in-house-developed active heave compensation (AHC) system, which uses sensors to predict and compensate for vessel motion and features a ‘self-learning’ function, which automatically identifies the vessel’s motion and adjusts itself according to these parameters. Te AHC system derives 70% of its power from an
adapted version of Liebherr’s Pactronic hydraulic hybrid drive system, which was originally developed for mobile harbour cranes. With the adapted version of Pactronic, a hydraulic accumulator works in tandem with the fluid pump in feeding the AHC system’s power requirements, and serves as a pressure storage reservoir, combining compressed gas with the hydraulic fluid. Te crane also features a patented horizontal winch
shiſting system, to ensure that the fleet angle of the rope remains constant when hoisting and lowering, regard- less of load size. Meanwhile, a patented vertical winch frame liſting system sees two hydraulic cylinders allow for the adjustment of the liſting height without moving the hoisting winch’s drum, a factor which Liebherr claims can extend the service life of the main wire rope. With Arctic offshore operations in mind, Liebherr is
also offering a special Arctic temperature-specific package as an add-on to the RL-K 7500, which would enable the crane to be operated in temperatures as low as -40˚C.
www.liebherr.com
CAD / CAM Liebherr gives first glimpse Intergraph and AVEVA
attract offshore users Brazil-based engineering firm IESA has opted for CAD / CAM specialist Intergraph’s Smart Marine and SmartPlant Enterprise soſtware tools, to complete the design and fabrication of 24 compression modules for six sister floating, production, storage and offloading (FPSO) vessels operated by Brazilian energy giant Petrobras. An option also exists for the delivery of eight modules to another two FPSO units. Under the terms of the contract, IESA will use
the software to break down its order into eight CO2
compression modules, eight gas compression
exportation modules and eight injection modules. Te vessels will be used as reference models for the other FPSO units that will be constructed for deploy- ment in offshore pre-salt projects in the country’s Santos Basin. Meanwhile, AVEVA Marine’s CAD/CAM soſtware
has been utilised by Angola-based shipyard Porto Amboim Estaleiros Navais Lda (Paenal) to increase the facility’s ability to incorporate 3D design of offshore steelwork and outfitting, particularly when it comes to the production of offshore platforms and FPSO units. The Paenal Shipyard is a joint venture between
Sonangol, SBM Offshore and DSME.
www.intergraph.com www.aveva.com/marine
Software Kongsberg inks simulator
and ROV deals Kongsberg Maritime has secured a contract to provide an offshore-specific simulation package to Maersk Training’s new Rio de Janeiro-based seafarer training centre, Maersk Training Brazil Treinamentos Mariti- mos LTDA. It is expected that, the package, which includes
Kongsberg’s Offshore Vessel Simulator integrated with its K-Pos Dynamic Positioning Simulator, is expected to be up and running at Maersk’s Brazilian base in Q2 2013. Both Kongsberg products are compatible with the Nautical Institute’s Class A requirements, and the contract also includes a five-year service agreement, including new soſtware updates and system upgrades. Additionally, Kongsberg Maritime subsidiary
Liebherr’s new RL-K 7500 subsea crane can handle loads at water depths of 3,400m
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Kongsberg Evotec recently agreed a deal to supply its Launch and Recovery System (E-LARS) for ROVs to Norwegian subsea support company Swire Seabed, in August 2013. Designed for the safe launch and recovery of ROVs, the E-LARS has been developed to update
Offshore Marine Technology 1st Quarter 2013
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