CONDITION MONITORING BASED MAINTENANCE IS ADOPTED IN CONJUCTION WITH MINIMUM PREVENTIVE MAINTENANCE. OPPORTUNITY MAINTENANCE IS ALSO ADOPTED SELECTIVELY
CONDITION MONITORING
“CONITNUOUS MONITORING OF EQUIPMENT HEALTH AND CARRYING REMEDIAL MEASURES BASED ON SYMPTOMS AND DIGNOSTICS.”
WHAT TO BE MONITORED?
PARAMETERS REQUIRED TO BE MONITORED ARE DIVIDED IN TWO CATEGORIES NAMELY:
MECHANICAL & PROCESS PARAMETERS
➢ MECHANICAL PARAMETERS
• VIBRATION
• AXIAL POSITON OF ROTOR
• BEARING TEMPERATURE
• LUBE OIL CONDITION & TEMPERATURE
Pleas check also: Basic Concept of Vibration Monitoring System
TRANSDUCER MOUNTING
PERMANENTLY MOUNTED PROBES More details about mounting and installation of vibration system transmitters.
More details please click this AXIAL POSITION MONITORING
RTD MOUNTING
MACHINERY MONITORING SYSTEM
BAR GRAPH for VIBRATION
A TYPICAL VIBRATION TREND
ORBIT PLOT OF VIBRATION
SPECTRUM
MULTIPLE SPECTRA OF VIBRATION MONITORING
CASCADE PLOT OF VIBRATION MONITORING
SHAFT CENTRELINE PLOT
Shaft movement in upward direction during Start Up .
LUBE OIL MONITORING
• LUBE OIL PHYSICAL CONDITION
• LUBE OIL PROPERTIES
• METALS CONTAMINATION
• WEAR DEBRIS ANALYSIS
• LUBE OIL PROCESS PARAMETERS LIKE TEMPERATURE / PRESSURE / LEVEL ETC.
WEAR DEBRIS ANALYSIS
➢ PROCESS PARAMETERS:
• INLET & OUTLET PRESSURES
• FLOW
• INLET & OUTLET TEMPERATURES
• EFFICIENCY
• SUCTION DRUM LEVEL
• COOLING WATER FLOW & TEMPERATURE
• SEAL SYSTEM PARAMETERS
DRY GAS SEAL
MACHINERY PROTECTIONS OF VIBRATION RELATED MACHINERY
MECHANICAL PARAMETERS
➢VIBRATIONS ALARM TRIP ➢ AXIAL POSTION ALARM TRIP ➢ BEARING TEMPERATURE ALARM TRIP ➢ LOW LUBE OIL PRESSURE ALARM TRIP
PROCESS PARAMETER
➢ LOW SUCTION PRESSURE
➢ LOW FLOW
➢ HIGH DISCHARGE
➢ HIGH SUCTION DRUM LEVEL FOR COMPRESSOR
➢ LOW SUCTION DRUM LEVEL FOR PUMPS
Please check also: METHOD STATEMENT FOR INSTALLATION OF CATHODIC PROTECTION SYSTEM