| 摘要 |
PROBLEM TO BE SOLVED: To provide a pump station requiring less site area and enabling the arrangement of the delivery pipes and delivery valves of pumps on an installation floor without allowing them to interfere with each other. SOLUTION: In this pump station formed by installing the pumps in a pump suction water tank, a plurality of semi-closed type or closed type water tanks 2 are installed in series in a water channel communicating with the pump suction water tank 1, and a vertical shaft pumps 3 are installed in the semi-closed type or the closed type water tanks 2. Thus, since the pump station is formed in such a structure that free surfaces are absent near the pumps, harmful air suction swirl is prevented from occurring on the pump side on the upstream side of the pumps. COPYRIGHT: (C)2006,JPO&NCIPI
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