电站水环式真空泵汽蚀诊断及对策研究

Power Plant Water Ring Vacuum Pump Cavitation Diagnosis and Countermeasure Research

分析了电站水环式真空泵应用中存在的主要问题,并结合某电厂真空泵在凝汽器高真空运行情况下发生振动加剧、电流突变、叶片弯曲断裂等现象,进行了汽蚀故障诊断、系统改造及效果分析。提出的水环式真空泵汽蚀诊断思路及预防建议,对同类机组解决水环式真空泵汽蚀问题有较高的参考价值。

This paper analyzes the power plant water ring vacuum pump the main problems existing in the application, and combined with vacuum pump of a certain power plant in condenser high vacuum operation cases occurred vibration aggravate, current mutation, leaf bending fracture wait for a phenomenon, the cavitation fault diagnosis, system reform and effect analysis. Proposed water ring vacuum pump cavitation diagnosis thinking and preventive Suggestions to solve the similar unit water ring vacuum pump cavitation problem has higher reference value.