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Condition monitoring in thermal power plant
 

Condition monitoring in thermal power plant

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    Condition monitoring in thermal power plant Condition monitoring in thermal power plant Presentation Transcript

    • CONDITION MONITORING IN THERMAL POWER PLANT SHIVAJI CHOUDHURY
    • OBJECTIVE OF CONDITION MONITORING
      • TO IDENTIFY CHANGES IN CONDITION OF MACHINE THAT WILL INDICATE SOME POTENTIAL FAILURE.
      • DIAGNOSIS OF FAULT
      • PREDICTION OF FAULT
      • TO AVOID FURTHER DAMAGES
      • TO PLAN BETTER SPARE MANAGEMENT
      • OUTAGE OF EQUIPMENT CAN BE BETTER PLANNED.
      • ENHANCING THE MACHINE EDURANCE LIMIT.
      • LESS DOWN TIME AND MORE PRODUCTIVITY
      • GREATER SAFETY TO WORK FORCE.
    • MONITORING TECHNIQUE
      • VIBRATION MONITORING.
      • LUBRICANT ANALYSIS.
      • NOISE ANALYSIS.
      • WEAR DEBRIS ANALYSIS.
      • THERMOGRAGHY.
      • D G A.
      • NDT ULTRASONIC
    • VIBRATION ANALYSIS
      • TURBINE.
      • GENERATOR.
      • PUMP.
      • MOTOR.
      • FAN.
      • COMPRESSOR.
    • VIBRATION DIAGNOSIS
      • SHAFT AND ROTOR- UNBALANCE , BENT, MISALIGNMENTS
      • BEARING –DAMAGES,,DISTORTION,LOSS OF LUBRICANT.
      • GEAR –TOOTH MESHING FAULT,WORN TEETH,MISALIGNMENT
      • MECHANICAL LOOSNESS
    • VIBRATION ANALYSIS 8 MANY REF MARK USUALLY LOW GEAR NOISE RPM* GEAR TEETH 7 MANY REF MARK ERRATIC BAD BRG MANY *RPM 6 USE STOBE LIGHT TO FREEZE FAULTY BELT 1,2,3,4 UNSTEADY ERRATIC BAD DRIVE BELT 1,2,3,4*RPM 5 USE DIAL INDICATOR FOR POSITIVE DIAGNOSIS TWO MARKS LARGE IN AXIAL DIRECTION BENT,SHAFT MISALIGNMENT 2*RPM 4 USUALLY HIGH IN VERTICAL DIRECTION TWO MARKS ERRATIC LOOSENESS 2*RPM 3 SINGLE PRORRTIONAL IMBALANCE UNBALANCE 1*RPM 2 HIGH SPEED MACHINES WHERE PRESSURISED BEARING ARE USED ERRATIC OFTEN VERY SEVERE OIL WHIP OR OIL WHRIL ½ ROTIONAL SPEED 1 COMMENTS PHASE AMPLITUTE CAUSE FREQ S.N
    • LUB OIL ANALYSIS
      • MOISTURE
      • MECHANICAL IMPURIRTIES
      • DENSITY
      • VISCOCITY
      • ACIDITY
    • LUB OIL DIAGNOSIS
      • DEGRADATION OF LUB OIL
      • IMPURITIES IN LUB OIL
    • WEAR DEBRIS ANALYSIS & DIAGNOSIS
      • WEAR DEBRIS CARRIED OUT FOR WEAR PARTICLE CONCENTRATION IN OIL
      • CONDITION OF LUB OIL
      • OUTSIDE CONTENMATION
      • TO DETERMINE TO WEAR CONDITION OF MACHINE
        • NORMAL RUBBING
        • BEARING FAILURE
        • CONDITION OF GEAR
        • CUTTING OF METAL
    • THERMOVISION MONITORING
      • IDENTIFICATION OF HOT SPOT .
      • USED FOR MONITORING OF SWITCHYARD EQUIPMENT.
      • ROUTINE MONITORING OF MOTOR/PUMP.
      • MONITORING OF DRAIN PIPES LINES TO DETECT CHOKING OF PIPE LINES.
      • TO MONITOR OF CONDITION OF INSULATION ON PIPE AND EQUIPMENT.
    • DISSOLVE GAS ANALYSIS
      • FOR ALL TRANSFORMERS.
      • DIELECTRIC STRENGTH OF TRANSFORMER OIL.
      • MOISTURE,DENSITY,COLOUR OF TRANSFORMER OIL.
      • DISSOLVE GAS ANALYSIS IN TRANSFORMER OIL-TO DIAGNOSIS OF FAULT.
    • TRANSFORMER OIL DIAGNOSIS
      • CO AND CO2 IN OIL—THERMALCONDITION INVOLVING PAPER
      • METHANE,ETHANE,ETHYLENE AND SMALL AMOUNT OF ACETYLENE IN OIL - THERMAL CONDITION INVOLVING THE OIL
      • HYDROGEN,METHA AND SMALL AMOUNT OF ACETYLENE AND ETHANE IN OIL--PARTIAL DISCHARGE
      • HYDROGEN,ACETYIENE AND ETHELENE IN OIL-SUSTAINED ARCING-SUSTAINED ARCING
    • VIBRATION MEASUREMENT MONTHLY SCHEDULE FOR CRITICAL EQUIPMENTS Y OTHER PUMPS/FANS 9 Y CW PUMPS 8 Y CEP 7 Y BFP 6 Y Y SEAL AIR FANS 5 Y Y MILL GEAR BOX 4 Y Y PA FANS 3 Y FD FANS 2 Y ID FANS 1 4 TH WEEK 3 RD WEEK 2 ND WEEK 1 ST WEEK Equipment S N
    • OIL ANALYSIS MONTHLY SCHEDULE FOR CRITICAL EQUIPMENTS 5 Y BFP LUB OIL 4 Y MILL LUB OIL 3 Y ID FAN LUB OIL 2 Y Y Y Y MOT OIL 1 4 TH WEEK 3 RD WEEK 2 ND WEEK 1 ST WEEK EQUIPMENTS S N
    • DISSOLVED GAS ANALYSIS YEARLY SCHEDULE FOR CRITICAL TRANSFORMERS Y STATION AND OTHER TRANSFORMER 3 Y UNIT AUX TRANSFORMER 2 Y GENERATOR TRANSFORMER 1 YEARLY SIX MONTHLY EQUIPMENT S.N
    • HOT SPOT SURVEY THROUGH THERMOVISION CAMARA Y SWITCH YARD AND TRANSFORMER YARD OF STATION 1 SIX MONTHLY EQUIPMENT S.N
    • TEMPERATURE MEASUREMENT BY IR PYROMETER
      • Measure temperature of all drain valves , to check valves are passing or not.
      • Measure temperature of all bearing of critical pumps, fans, compressors, motors, turbine .
      Y BEARING OF FANS,PUMPS, COMPRESSORS, MOTORS,TURBINE. 2 Y DRAIN VALVE 1 IN EVERY THREE MONTH MONTHLY EQUIPMENT S.N
    • WEAR DEBRIS ANALYSIS Y MILL GEAR BOX OIL 2 Y MOT OIL 1 ANNUALLY ONCE IN FOUR MONTH EQUIPMENT S.N
    • STANDARDS FOR CONDITIONAL MONITORING CONDITION MONITORING AND DIAGNOSTICS OF MACHINE AND PROGNOSTICS ISO 13381 3 MECHANICAL VIBRATION AND SHOCK –VIBRATION MONITORING OF MACHINE ISO 13373 2 CONDITION MONITORING AND DIAGNOSTICS OF MACHINES ,GENERAL GUIDELINE ISO 17359 1 DESCRIPTION STANDARD NO S.N
    • THANKYOU