1. www.stiweb.com Vibration Monitoring & Machine Protection Systems Copyright 1999, Frank Howard, STI Vibration Monitoring, Inc. League City, Texas USA Reciprocating Compressor Application

2. www.stiweb.com Vibration Monitoring & Machine Protection Systems Maintenance Cost are 3.5 X that of centrifugal equipment. Condition Monitoring can achieve substantial savings in maintenance cost and in increased run time. Reciprocating Compressor Application

3. www.stiweb.com Vibration Monitoring & Machine Protection Systems Frame Vibration Crosshead Vibration Rod Drop Rod Run-Out Main Bearing Vibration Valve Temperature Pressure Volume Curve Rod Loading Reciprocating Compressor Measurement Parameters:

4. www.stiweb.com Vibration Monitoring & Machine Protection Systems Frame Vibration Prevent Catastrophic Failure and reduce overall damage Most common method of tripping machine. Replaces OEM supplied “Earthquake” switch.

5. www.stiweb.com Vibration Monitoring & Machine Protection Systems Solid State Design (Long Life) Low Frequency Response Indication of Vibration Levels Alert & Danger Alarms Shutdown “AND” Voting Fault Detection Vibration Diagnostic Capability CMCP530 Velocity Monitor Advantages over OEM “EARTHQUAKE” Switch

6. www.stiweb.com Vibration Monitoring & Machine Protection Systems Crosshead Vibration

7. www.stiweb.com Vibration Monitoring & Machine Protection Systems Increased clearance between Crosshead and the babitt surfaces. Indicator of Crosshead Pin “reversal” problem. Loose Rod Nuts & Bolts Liquid in the process Machine shutdowns for repair can be scheduled. CMSS2100 Accelerometer and CMCP280 Housing CMCP525 Acceleration Monitor Crosshead Vibration

8. www.stiweb.com Vibration Monitoring & Machine Protection Systems Rod Drop

9. www.stiweb.com Vibration Monitoring & Machine Protection Systems Eliminate periodic inspections that require machine shutdown and disassembly Provide real time trend of rider ring wear. CMCP545 Position Monitor Eddy Probe System Rod Drop

10. www.stiweb.com Vibration Monitoring & Machine Protection Systems Assurance that Rod Run Out is within tolerable limits after the machine is at operating speed and temperature. Provide early warning of gland seal failure caused by Rod Run Out. Alarms & Shutdown available. CMCP540 Displacement Monitor X,Y Eddy Probe System Rod Runout

11. www.stiweb.com Vibration Monitoring & Machine Protection Systems Provide early warning of main bearing failure Alarms & Shutdown available. CMCP540 Displacement Monitor X,Y Eddy Probes Main Bearing Vibration

12. www.stiweb.com Vibration Monitoring & Machine Protection Systems Valve Temperature Cylinder Valve failures account for greater than 40% of problems. 44 Temperature Points on this machine...

13. www.stiweb.com Vibration Monitoring & Machine Protection Systems Provide early indication of valve problem. Isolates the problem valve for repair. Trending condition allows for scheduled shutdowns. Prevent damage to cylinder lining that occurs when valve parts are ingested by the machine. RTD Valve Cover CMCP560 RTD Monitor Valve Temperature Cylinder

14. www.stiweb.com Vibration Monitoring & Machine Protection Systems Explosion Proof Transducer Housings Transducer terminations (+) and (-) 24Vdc Power Supplies CMCP500 Series Transmitter/Monitors A/D Converter with DCS protocol.

15. www.stiweb.com Vibration Monitoring & Machine Protection Systems Explosion Proof Housings DCS Multi-Drop Link DCS Link Connection to Control Room 110Vac Xdrs Explosion Proof Housings

16. www.stiweb.com Vibration Monitoring & Machine Protection Systems F=PA Inboard F=PA Outboard Phase Reference Pressure Sensor Mounted Inboard & Outboard through Cylinder Wall Force 0 Crank Angle 360 180 270 90 Rod Load

17. www.stiweb.com Vibration Monitoring & Machine Protection Systems Accelerometer on coupled & Outboard bearing in Horizontal direction (Velocity Measurement). Motor Drive: Gas Engine: Accelerometer inside the engine on main bearing supports for detonation & mechanical looseness detection (Acceleration Measurement). Turbochargers, Cooling Water Fans, Water Pumps, and Oil Pumps Auxiliary Equipment Monitoring

18. www.stiweb.com Vibration Monitoring & Machine Protection Systems Pressure Sensors Eddy Probe (Rod Drop) Eddy Probe (Phase Reference) CMSS2100 Accelerometer (Crosshead Vibration) CMSS2100 Accelerometer (Frame Vibration) Temperature Sensors Reciprocating Compressor Monitoring Summary

19. www.stiweb.com Vibration Monitoring & Machine Protection Systems