| 摘要 |
<p><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 40 disposed in a pump casing 33 is rotated with the rotation of a rotating shaft 37 to suck hot water from a sucking part 34 of the pump casing 33 and discharge it through an ejection part 35, while the cooling water in a motor casing 10 is circulated while being cooled with a circulation cooling mechanism 43. A shaft penetration part 24 of a heat barrier 22 is provided with a flow suppressing mechanism 30 for suppressing the flow between the motor casing 10 passing through the shaft penetration part 24 and the pump casing 33. <P>COPYRIGHT: (C)2012,JPO&INPIT</p> |
