CONDITION MONITORING AND MACHINERY PROTECTION

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.

TRANSDUCER MOUNTING

TRANSDUCER MOUNTING

 

More details please click this    AXIAL POSITION MONITORING

 

AXIAL POSITION MONITORING

AXIAL POSITION MONITORING

RTD MOUNTING

RTD Mounting diagram

RTD Mounting diagram

                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                       MACHINERY MONITORING SYSTEM

machine monitoring system diagram

machine monitoring system diagram

BAR GRAPH for VIBRATION

VIBRATION BAR GRAPGH DIARAM

VIBRATION BAR GRAPGH DIARAM

 

A TYPICAL VIBRATION TREND

VIBRATION TREND DIAGRAM

VIBRATION TREND DIAGRAM

                                                                                                                                                                                                                                                                                                                                                                                                                                                                     ORBIT PLOT OF VIBRATION

ORBIT PLAN OF VIBRATION DIAGRAM

ORBIT PLAN OF VIBRATION DIAGRAM

SPECTRUM

                         

MULTIPLE SPECTRA OF VIBRATION MONITORING

                              

CASCADE PLOT OF VIBRATION MONITORING

SHAFT CENTRELINE PLOT

SHAFT CENTRE LINE POINT DIAGRAM

SHAFT CENTRE LINE POINT DIAGRAM

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

DRY GAS SEAL DIAGRAM

DRY GAS SEAL DIAGRAM

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

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