Multi-dimensional velocity rotating machinery vibration on-line monitoring device, method and system
By installing vibration sensors and key phase sensors on each shaft of the electric water pump unit, collecting and converting signals for analysis, the problem of the inability to monitor the relative vibration changes between multiple shafts in the existing technology is solved, and precise fault diagnosis and real-time monitoring of the electric water pump unit are realized.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- HUANENG BEIJING CO GENERATION
- Filing Date
- 2023-11-16
- Publication Date
- 2026-06-23
AI Technical Summary
Existing technologies cannot effectively monitor the relative vibration changes between multiple shafts in an electric water pump set, especially the vibration phase changes between the constant speed shaft and the variable speed shaft, and cannot accurately analyze the relationship between speed changes and vibration phase.
A multi-dimensional velocity-rotating mechanical vibration online monitoring method is adopted. Vibration sensors and key phase sensors are installed on each shaft of the electric water pump set to collect and convert vibration signals and phase signals. The results are then analyzed by combining fast Fourier transform and a built-in fault database to achieve comparison and fault prediction.
It enables real-time monitoring of each shaft of the electric water pump unit, can distinguish and analyze the vibration changes of the constant speed shaft and the variable speed shaft, and provides accurate alarms and maintenance suggestions, thus solving the problem of the single monitoring method in the existing technology.
Smart Images
Figure CN117552968B_ABST