水轮机橡胶轴承改造为油轴承的途径研究

Research on the Way to Change Water-lubrication Rubber Bearing into Oil-lubrication Bearing in Hydraulic Turbine

采用水润滑橡胶轴承的小型轴流式水轮机,运行于多泥沙河流时,橡胶瓦快速磨损导致转轮室间隙非正常扩大,机组效率剧减乃至带不上负荷。为解决多哇电站的问题,在原有水轮机顶盖狭小的空间内,将水润滑橡胶轴承改造成了稀油润滑轴承,并加设了主轴密封及顶盖射流泵引水装置,成功解决了上述问题。

The rubber guider bearing wears away quickly, which makes the runner chamber room larger in an abnormal way, when propeller turbine adopts water-lubrication rubber bearing works in much sediment river. The unit efficiency falls so badly that it can not afford the loads. In order to solve the problem of Dowa electricity station, we change water-lubrication rubber bearing into oil-lubrication bearing and add a set of mail shaft seals and a pump in a small space of the former turbine head cover, so we have solved the above-mentioned problems successfully.