化工炼油生产装置中,离心泵的应用极为普遍。而这类泵的轴承润滑方式多采用润滑油润滑,特别是滑动轴承,是依靠油楔压力形成流动油膜而实现其润滑的,即所谓“动压轴承”。为了有效地润滑和冷却轴承,应该不间断地向轴瓦间隙中供给必须的适量润滑油。油量过少,会影响油膜的保持和降低冷却效果;油量过大, Chemical refinery production plant, the application of centrifugal pumps is extremely common. Lubrication of such pumps and bearing lubrication methods to use more lubricating oil, especially the sliding bearings, oil wedge pressure is to rely on the formation of mobile oil film and achieve its lubrication, the so-called “dynamic pressure bearings.” In order to effectively lubricate and cool the bearing, it is imperative to supply the necessary amount of lubricant to the bearing gap without interruption. Oil is too small, it will affect the oil film to maintain and reduce the cooling effect; oil is too large,