| 摘要 |
The present invention can provide a centrifugal heat pump including a body housing (10) composed of an inlet wherein water flows, an outlet (12) through which hot water heated inside is discharged, and a central drive shaft (20) inserted into the center of the inside; a drive motor (30) connected to one side of the body housing (10) to transmit power to the operation central shaft (20); heating disks (40) joined to the central drive shaft (20) at constant intervals and including frictional grooves (41) along an outer rim; a flange cover (50) joined to one side of the body housing (10) to support one end of the central drive shaft (20); a central shaft upper bearing (60) supporting the central drive shaft (20) inside the flange cover (50) to be able to rotate; and a water-current groove (21) formed on one side of the central drive shaft (20) and preventing an inflow of the water inside the body housing (10) to the central shaft upper bearing (60) by forming a water current in a radial direction of the shaft. According to the same, the centrifugal heat pump capable of preventing the water from flowing backward by forming the water current to prevent the inflow of the water to the central shaft upper bearing due to inner pressure in a pumping process and preventing a malfunction in a device such as corrosion of the bearing can be provided. |
