Method of manufacturing the pump casing, pump casing, and a method of manufacturing a vertical shaft pump, vertical shaft pump

摘要

PROBLEM TO BE SOLVED: To fabricate baffles simply and allow fluid to flow smoothly.;SOLUTION: The invention comprises a baffle 10 provided with a fluid suck-in hole 1 and fluid discharge hole 2 to change the flow direction of the fluid sucked in from the fluid suck-in hole 1 in a flow passage leading from the fluid suck-in hole 1 to fluid discharge hole 2 while guiding the fluid toward the fluid discharge hole 2, a drawout hole 9 for drawing out the baffle 10 to the outside, and an elbow 11 provided along a bent passage following from the fluid suck-in hole 1 to the fluid discharge hole 2, wherein part of the elbow 11 is cut away and formed as baffle 10.;COPYRIGHT: (C)2012,JPO&INPIT