EN8000 Rotating Machine Vibration Monitoring and Fault Diagnosis Expert System

Product Introduction

EN8000 rotating machine vibration monitoring and fault diagnosis expert system is mainly used for on-line vibration monitoring, analysis and fault diagnosis of large machines adopted by the power sector, petrochemical industry and metallurgical industry, such as steam turbine generator set, hydroelectric generator set, compressor unit, gas-turbine engine, air blower, electrical motor, water pump, gear and rolling bearing, etc. This system could collect the state parameters related to the equipment safety continuously and automatically, including the key phase/revolution, shaft vibration, casing vibration, axial displacement, differential expansion, eccentricity, and other procedural parameters, such as temperature, pressure and switching value, and could form databases automatically. It could identify the operating mode of the equipment automatically, forecast and diagnose the faults, and boost the transformation towards preventive maintenance (status maintenance) in order to ensure the safe and stable operation of the equipment.
EN8000 system is of modular design for flexible and convenient configuration. The system is provided with a nice and direct Windows interface for easy operation. The upper computer could communicate with several data acquisition boxes and could form a remote monitoring diagnostic center conveniently through the dial-up network. Our company owns the full intellectual property of EN8000 system and this product is featured in powerful expandability and maintainability. This product has been ISO 9001 certified at an earlier time as compared with those in the same industry and now there are more than 100 sets running on site and being welcomed by users.
System Functions
System configuration: the parameters used for ensuring the normal system operation could be configured manually, which enables adding or changing the monitoring parameters in future without changing the software.
Data acquisition: the system could collect the vibration signals of the storage device continuously and synchronistically in the full period; it could accurately collects the revolution and other procedure parameters relevant to the status of the equipment.
State recognition: the system could automatically recognize the equipment status, such as normal state, start/stop state and error state, and could automatically generate reports fully reflecting the equipment status.
Real-time monitoring£ºThe monitored data could be displayed in real time with the main monitoring graph, bar chart, data sheet, curve, etc.
Alarm monitoring: it is on alarm through automatic blinking when the equipment goes wrong to avoid further damage.
Data management: the system could automatically store relevant data and form historical database (the database by hour, day, month and year), event database, original comparative database, black box database and property database, and could also maintain such databases.
Trend analysis£ºThe development trend of one or more parameters with respect to certain parameter could be analyzed and the transverse axis and vertical axis could be chosen freely.
Event recall: a black box database is provided for recalling the particulars before and after certain event
 

Vibration analysis: powerful vibration analysis functions are provided, including time domain analysis (waveform, amplitude value, orbit of shaft centerline, axle center position, shafting emulation), frequency domain analysis (frequency spectrum, phase, waterfall curve, filtering analysis, zoom spectrum, cepstrum, envelopment analysis, target spectrum plot, target phase plot), speed shifting analysis (Bode diagram, polar plot, cascade graph), trend analysis (persistence forecasting, relevant trend analysis), time-frequency analysis (wavelet transformation) and comparative analysis.
Fault diagnosis£ºThe diagnosis could be done on line or off line, and common faults, such as unbalance of the rotor system, rotor thermal distortion, misalignment, rotor-to-stator rubbing, loss of material from rotor, oil whirl/whip, flow steam caused vibration and damaged bearing/journal, and breakdown of the gears and bearings, could be diagnosed automatically or through dialogues. The knowledge base could be managed.
Event list: record the details of alarms and switches.
Dynamic balancing computation: computation of the influence coefficient with least square method and harmonic component method with more measuring points on more planes, and the way of balancing.
Report printing: timed printing of the operation reports and signal analysis charts as required.
Network communication£ºIt could communicate with the in-plant DCS and MIS systems and the remote fault diagnosis center.
 

Main technical specification