Analysis of cooling and lubricating system of bearings in pumps for melted salts

Current problems in cooling and lubricating system of bearings in pumps for melted salts are analysed and compared with the existing devices . It was found that whatever the lubricant is used, grease or oil, water-cooling can achieve better effect. When the lubricating oil is cycled with an oil-rising equipment, it is more reasonable to choose the rise-angle between 10 and 13 degrees, the viscosity of lubricating oil between 40 to 80 m~2/s and the radial clearance of oil-rising equipment in the range of 0 2 to 0 3 millimeters. The advantage and disadvantage of the device with oil-lubricating and wind-cooling are to be examined in further experiment.