Patent ID: 7211190

Claim:
Strainer wall for screening off a suction space and a suction duct connected to it in an emergency cooling system of a nuclear power plant, said strainer wall including at least one strainer wall element having an inlet side and an outflow side, wherein the inlet side is oriented inclined or perpendicular; the strainer wall element is built up of one or more modular cassette units; and the cassette units each contain a plurality of screen elements which are open towards the inlet side and which are connected to the outflow side, wherein the screen elements are made as suction pockets that are surrounded by outflow gaps which are connected to the outflow side or are open to the outflow side, and the cassette units contain bent wall segments between outer walls and/or one or more intermediate walls in order to form the suction pockets, wherein the bent wall segments comprise essentially U-shaped bent perforated wall segments.