Dredging vessel suction head - has pressurised water supply line entering divided chambers in suction head

摘要

The side walls in the pressurised water supply chamber separate the chamber from the suction chamber. A suction head (1) has a top wall section (2) with depending side walls (3), along which a skirt (4) with a sloping guide section (5) is freely slidable. The skirt is, connected by a U-shaped rubber seal (20) to the top wall section. Four side wall sections (6) depend from the top wall, and enclose an inlet chamber (7) of which the top wall forms the suction-head top part. A pressurised water supply (9) enters the inlet chamber. The suction chamber (8) has a suction tube (13) consisting of a V-shaped connector, flexible section (15) and suction tube (16).