Moon Pool Systems
Tekmar have produced five Multi Purpose Handling Systems (MPHS) for use with a wide variety of sub-sea tools.
The MPHS sits over the moon-pool of the vessel and lowers tools sub-sea on a main-lift winch. The system can also be fitted with two or four guide wire winches.
Three lift beams are fitted to the top of the tower, two for the guide wire winches and one for the main lift winch. The beams are multi position and are moved hydraulically.
A complete skidding system is supplied which is seafastened to the vessel deck and provide the storage and rail system to transport the tools into the MPHS. Storage slots are modular therefore additional sections can be added. The tools are moved using a hydraulic push / pull unit.
The base of the tower incorporates three platforms. The central moonpool door lowers down into the moonpool and is fitted with a failsafe latching system that interfaces with the skidrails to prevent this door from accidentally opening.
Two side panel doors are provided for maintenance personnel and operate on independent hydraulic circuits.
A telescopic cursor frame is mechanically lowered into the moonpool and requires no permanent welding to the vessel. A winch controlled cursor carriage is fitted with adjustable prongs to suit a range of sub-sea tools.
As standard safety harness rails are fitted around the inside of the tower. The inside of the tower is fully lit by spotlights and the upper walkway is fitted with four striplights.
The MPHS is designed, constructed and tested according to Det Norsk Veritas Standard For Certification Of Lifting Appliances No 2.22 October 2008 and subjected to an independent third party approval.
Tekmar service engineers perform installation and commissioning onboard the vessel.
Technical Specification
- Safe working load (SWL): 30 Te
- MPHS dimensions: 6m x 7m
- Operating depth: 2,000m
- Guide wires: 4-off 5 Te SWL
- Guide posts: 4-off API 2586mm adjustable
- Gross weight: 63 Te (excluding winches)
- Design temperature: -20 to +50 degC
