| 摘要 |
<p>PURPOSE:To reduce the accumulation of bacteria to one-third compared with a filtration film and to prevent the partial passage of water by providing the bottom plate of the main body along the bottom surface and the passage space between the bottom part of the main body and the filter member layer respectively. CONSTITUTION:As indicated by arrow, flowing-in water from flowing-in pipe 4 is abutted on the bottom plate 9 and changes the direction of the flow in a flowing-in room A, and a part of this stream becomes upward stream(z) of space layer 6 and a stream along passage (y) and the stream (x) is always in a stirring condition in the flowing-in room, and is raised, penetrated and diffused in the filter member 16 of the filter member layer 7 and moved to a dischanging direction. The stream of bottom passage (y) is rollingly made flow into space layers 6-6'' by the viscosity of water, however by the flow resistance of partitioning plates 2', is in a stirring condition and stream (z) resing up into respective space layers 6-6'' are accelerated. Circulating water obtains cleaning power by coming into contact with filter member 16 in the respective filter member layers 7-7''. These streams are joined and made to flow into the dischanging room C and dischanged to the outside for circulation from dischanging nozzle 5. By the buffering action of the bottom passage 10 between the filter member layers 7-7'', proliferating configuration of film form bacterial is not produced, and the accumulation of sludge becomes extremly small.</p> |
