Company name:Tongxiang Xiaoying Pollution Control Technology Co., Ltd.
Categories:Offshore Oil Drilling Platform
The four legs with the continuous speed Jxy jacking system and the diagonal pre-loading allow for easy and fast installation. The Jxy-9000C is intended for use in water depths of up to 45m in a North Sea environment.
The Jxy-9000C is equipped with an 800 t heavy duty offshore crane developed by Jxy for the Wind Turbine Installation market. The GLC-800-ED crane combines a high capacity & high outreach with a short minimum radius, is located on top of the portside aft Jack-house and revolves 360o unrestricted around the leg.
The main deck is locally reinforced for the transportation of wind turbine parts or other heavy components. In addition the vessel has the ability to work in the Offshore Oil & Gas sector. Principal dimensions Hull length 130.80 m Hull width 39.00 m Hull depth 9.00 m Hull draft 5.60 m Leg length max. (incl. spudcan, from base) 81.50 m
Classification DNV 1A1 Self-elevating Wind Turbine Installation Unit CLEAN DESIGN, CRANE, DYNPOS-AUTR, E0, HELDK, NAUT-OSV(A), OPP-F Power generation 4 diesel generator sets of 4,320 kW 1 emergency diesel generator set of 600 kW Propulsion Propulsion for transit is provided by three propulsion azimuth thrusters of 3,500 kW, together with another three tunnel thrusters of 1,750 kW. These provide thrust for station keeping with a DP-2 dynamic positioning system.
Speed Transit speed approx. 12 kn
Variable load Variable load 6,500 t Deck load 5 - 10 t / m2 Deck area ¡À 3,200 m2
Accommodation An accommodation deckhouse suitable for 90 persons is located on the forward end of the vessel.
Helideck A helicopter landing deck suitable for a Sikorsky S92/ S61N or Super Puma AS 332L2 is provided on top of the deckhouse. Units under construction ? Hull L208 at Drydocks World SEA, for delivery in 2012 ? Brave Tern, at Lamprell, 2012 ? Bold Tern, at Lamprell, 2012 ? Sea Installer, at Cosco, 2012
Jacking design condition Significant wave height 1.8 m Current velocity 2.5 kn Wind velocity (1 min. mean @ 10 m) 14.0 m/s Max. elevated weight abt 18,000 t
Elevated survival condition Max. wave height 21 m Wave peak period 13.8 s Current velocity 2.5 kn Wind velocity (1 min. mean @ 10 m) 41.0 m/s Water depth 45.0 m Airgap 15 m
Jacking system The vessel is equipped with the JXY continuous hydraulic positive engagement jacking system.
- Max. Jacking capacity 5,300 tf per leg - Max. Holding capacity 9,000 tf per leg
- Platform lifting speed 24 m/hr - Platform lowering speed 30 m/hr - Leg handling speeds up to 40 m/hr