洪江水电厂首台灯泡贯流式水轮发电机组于2003年2月投产,至2010年运行已经将近7年。2006年至2007年期间推力轴承油冷却系统不同程度地出现了泄漏,如2006年1月22日对2号机轴承油冷却器打压试验发现#1、#2轴承油冷却器铜管破裂;2006年6月27日发现2号机#2轴承油冷却器水封出现损坏;2007年7月21日对6号机轴承油#1、#2冷却器打油压无法保压。以 Hongjiang Hydropower Plant’s first bulb tubular turbine unit put into operation in February 2003, to 2010 has been running nearly seven years. From 2006 to 2007, the thrust bearing oil cooling system appeared different degrees of leakage. For example, the # 1 and # 2 bearing oil cooler copper tubes were cracked on the No. 2 bearing oil cooler on January 22, 2006; It was found on June 27, No. 2 # 2 bearing oil cooler water seal damage; July 21, 2007 on the 6th bearing oil # 1, # 2 cooler hydraulic pressure can not keep pressure. To