The concept of this diving system is hightly innovative because it is completely containerized and therefore, it can easily be shifted in three different positions on the main deck of the SSCV (port side, starboard side and blow) allowing a maximum operational flexibility wich up to now has been obtained only by small and light-weight air diving systems. The shifting can be made in a few hours by the use of one of the SSCV'S cranes.The whole diving system can be transferred on the vessels without any heavy demobilisation and remobilisation. The total weight of the package is 300 tons and its main dimension are 16.5 x 9.5 x 7.4 meters. A hyperbaric lifeboat (50 tons) is also included in the system. The main package consists of 6 separate containers wich are installed on two levels. On the first level are located the decompression chambers ( total capacity for 14 divers and maximum working depht of 450 MSW), the transfer lock, the life support system, the hydraulic power pack, the oxygen storage and the moonpool area. On the second level are located the complete diving bell launching and recovery system (cursor winch, trolley, heave compensating unit, etc), the dive control center, the environamental control units and the potable water and fire suppression system.
The system has been designed to operate under harsh environments (arctic and tropical) and it is classed by Lloyd's Register and Registro Italiano Navale (R.I.N.A.). It also complies with the latest requirements of the Norvegian maritime directorate. |
