| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a circulation pump of an erection type, which can reduce facility installation and construction costs, while solving the problem that a water replacing phenomenon is caused by the erection type. <P>SOLUTION: In the circulation pump, an impeller 39 disposed in a pump casing 32 is rotated with the rotation of a rotating shaft 36 to suck hot water from a sucking part 33 of the pump casing 32 and to discharge it through an ejection part 34, while the cooling water in a motor casing 10 is circulated while being cooled with a circulation cooling mechanism 42. The connecting pipe 43 of the circulation cooling mechanism 42 is arranged with a pump 47 for sucking the cooling water in the motor casing 10 for circulation supply. <P>COPYRIGHT: (C)2012,JPO&INPIT |
