BOOM BARRIER OF VARIABLE BUOYANCY Russian patent published in 2004 - IPC

FIELD: environmental control in process of operation of main oil product pipe-lines, localization and collection of oil or oil product spots, from powerful streams of it in running water ponds and rivers included. SUBSTANCE: invention can also be used around sea and river oil terminals and water intake facilities. Boom barrier consists of interjoined cylindrical sections made of metal tubes carrying plugs. Each plug except last one is fitted with branch pipe for connection of spaces of sections to compressor and water feeding pump correspondingly and for connection of pipe-lines passing through sections to heating gear. Two hollow ridges placed along cylindrical section at some distance one from another are positioned in upper part of cylindrical section, in symmetry with its longitudinal axis. Cross-section of ridge has triangular form. Platform is mounted along entire length of boom barrier between ridges. Inflated cushion is attached to platform, its upper part carries layer of thick porolon to which sorbing mats are attached. Sections can be provided with ballasts fixed to lower surfaces of sections, opposite to platform or with pontoons made of tubes to give boom barrier more wave and gale stability. Spaces of pontoons are connected to spaces of cylindrical sections and boom barrier. Invention makes it possible to localize and to collect oil in any season, from under ice too, under any weather conditions and extreme situations on rivers with various characteristics. Invention allows temporary storage of collected oil in boom barrier itself and possibility of fire fighting. EFFECT: increased efficiency of oil product collection. 10 cl, 5 dwg