To obtain a multistage turbine pump preventing deflection of a bottom plate of a first stage intermediate casing without increasing the plate thickness of the first stage intermediate casing.
In the multistage turbine pump, the interior of a cylindrical outer barrel 1 serves as a pump chamber 2, a plurality of impellers 3 and intermediate casings 4 are arranged in the pump chamber 2 while being stacked up in a multistage manner, a suction port casing 6 having a suction port is mounted to an opening portion at one end of the outer barrel 1 and a discharge port casing 8 having a discharge port is mounted to an opening portion at the other end, and the intermediate casings 4 are supported by the suction port casing 6 and the discharge port casing 8. A seat part 13 abutting against a suction port sided end face 12a of the first stage intermediate casing 4a on a suction port side is provided inside of the suction port casing 6.
WATANABE SHIGEHIRO
ODA MAKOTO
OSHITA YASUSHI
Koichi Kawashima
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