关键词: 水电站, 发电机组, 高压油顶起装置, 逆止节流阀, 内泄

Abstract: This paper introduces the structure and function of high pressure oil jacking device at a hydropower station, and analyzes the residual pressure in the main oil inlet ring pipe and main oil inlet pipe. Infrared thermal imagers are utilized to efficiently locate the faulty check throttles. Then, the causes for the residual pressure in the main oil inlet ring pipe and main oil inlet pipe are analyzed. Accordingly, prevention measures are proposed.

Key words: hydropower station, generator unit, high pressure oil jacking device, check throttle, internal , leakage