乐昌峡水电厂筒阀故障原因分析

摘要

During the operation of Lechangxia hydropower unit , it is found that the 2#cylinder valve pressure pump of 3#unit starts for a long time but can not be loaded once , at the same time there was abnormal sound and severe vibration .In view of this situation, the reasons have been analyzed from the cylinder valve hydraulic control device for electrical , automation and mechanical system, after repeatedly debugging and verification , the cause of the incident have been found .This is because the safety valve pressure spring has been pressed for a long time;elastic contact deformation has been produced , so that mistakes occur .To avoid similar problems in the future operation , our regular and preventive work are needed further improvement .%乐昌峡水力水电厂在机组运行过程中发现，3＃机组筒阀2＃压力油泵已启动多时却不能加载打油，声响异常且伴随严重的震动。针对这一情况，分别从筒阀油压装置控制系统的电气、自动化和机械等方面着手分析原因，经过现场反复调试验证，发现是安全阀压力弹簧长时间受压，弹性形变发生变化以致动作失误。以防在以后的运行中出现类似问题，需要进一步完善有针对性和预防性的定期工作。