On-line state diagnosis device and method for water turbine unit shafting power system

• Main Authors: ZHANG JINHUI, TIAN DAWEI, SUN WEI, ZHANG QIANG, WANG ZHAOXIN, YAN FENG, LI HUICONG, LU MIN, YAN KUN, ZHONG RUIYAN, GUAN TI, QIN KUN, LIU LU, ZHAO LEI, MA QIANG, DUAN HUAPENG, LIU YONG, KOU JUN
• Format: Patent
• Language: Chinese; English
• Published: 26.10.2016
• Subjects: MEASURING; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS; MEASURING LENGTH, THICKNESS OR SIMILAR LINEARDIMENSIONS; PHYSICS; TESTING

The invention discloses an on-line state diagnosis device and method for a water turbine unit shafting power system. The device comprises water turbine LVDT (Linear Variable Differential Transformer) sensors, wear indicator and an on-line data processing device; a plurality of water turbine LVDT sensors are respectively arranged inside a water turbine unit, each water turbine LVDT sensor is connected with a wear indicator, and the wear indicators are connected with the on-line data processing device via output buffer interfaces. The device and the method have the advantages that the device acquires data via the buffer interfaces of a water turbine sealing ring wear indicator front panel, so that safety operation of the unit is not influenced. By using the sensors of sealing ring wear indicators, the device is low in manufacturing cost and convenient to maintain for field installation-free operation of the water turbine. 本发明公开了种水轮机组轴系动力系统状态在线诊断装置及方法，包括：水轮机LVDT传感器、磨损指示器和在线数据处理装置；若干所述水轮机LVDT传感器分别设置在水轮机组内部，每个所述水轮