The DESMI Speed Sweep is an advancing oil sweep system that can operate, collect and store oil at speeds of up to 3 knots without loss from the apex.
The principle of operation is based on specially designed, high strength, flexible Kevlar cross members that slow the speed of the surface oil to prevent entrainment while in advancing mode. The Kevlar cross members are positioned across the apex of the boom. The physical size, shape and positioning of these member or inhibitors, are important and extensive testing and collaborative computer modelling has resulted in a proven product.
The DESMI Speed Sweep has even been towed at speeds of up to 5 knots without damage or breakage. It can collect and store oil to be offloaded using a traditional weir or oleophilic skimmer to pump out from the apex.
This oil sweep system, fully tested, is a heavy duty rubber boom recovery system designed to allow for the collection of oil at greater speeds than has previously been possible. Once the pollutant has been collected at the cusp, a skimmer can be located at the apex and recovery can begin. This can continue while the sweep system is moving forward. The unique, high efficiency Speed-Sweep is designed to either connect to a Ro-Boom system or operate as an independent collection unit. It can be towed either between two vessels or one vessel with a jib arm or paravane.
The Speed-Sweep oil sweep system is manufactured from the tough Ro-Boom 1500 offshore containment boom, with individual three metre buoyancy chambers, tapered down at either end to match Ro-Boom 1300, which is the ideal guide boom for the sweeping system. There are also three 900mm nets, with foam-filled circular floats, which are used to interrupt the speed of the oil, allowing it to be collected at the cusp. The excess water simply escapes through the rear netting. This system allows the surface water and oil to be slowed by as much as 70%, which allows the oil to concentrate in the apex ready for collection. No head wave phenomena or planing occurs.
DESMI designs and manufactures an extensive range of systems to recover oil and chemicals from the marine and inland environment. DESMI products include skimmers, booms, storage tanks, power packs, pumps, dispersant systems, vessels and ancillary items.
DESMI’s extensive range of containment booms and oil skimmers supports their oil spill response solutions which are highly trusted in the industry. Whether the requirement is for offshore or shoreline areas; the arctic or equatorial environment, DESMI delivers proven solutions for all spill conditions and offers outstanding life-cycle costs.