Vibration Monitoring and Machine Protection Systems 1010 E

Vibration Monitoring and Machine Protection Systems 1010 E. Main St. , League City, TX 77573 Phone: 281 -334 -0766 Fax: 281 -334 -4255 www. stiweb. com / www. stiwebstore. com Reciprocating Compressor Application

Reciprocating Compressor Application ü Maintenance Cost are 3. 5 X that of centrifugal equipment. ü Condition Monitoring can achieve substantial savings in maintenance cost and in increased run time.

Reciprocating Compressor Measurement Parameters: ü Frame Vibration ü Crosshead Vibration ü Rod Drop ü Rod Run-Out ü Main Bearing Vibration ü Valve Temperature ü Rod Loading

Frame Vibration ü Prevent Catastrophic Failure and reduce overall damage ü Most common method of tripping machine. ü Replaces OEM supplied “Earthquake” switch. Frame Vibration

Advantages over OEM “EARTHQUAKE” Switch ü Solid State Design (Long Life) ü Low Frequency Response ü Indication of Vibration Levels ü Alert & Danger Alarms ü Shutdown “AND” Voting ü Fault Detection ü Vibration Diagnostic Capability CMCP 530 Velocity Monitor

Crosshead Vibration

Crosshead Vibration Accelerometer and CMCP 280 Housing CMCP 525 Acceleration Transmitter/Monitor ü ü ü Increased clearance between Crosshead and the Babbitt surfaces. Indicator of Crosshead Pin “reversal” problem. Loose Rod Nuts & Bolts Liquid in the process Machine shutdowns for repair can be scheduled.

Rod Drop

Rod Drop Eddy Probe System CMCP 545 Position Transmitter/Monitor ü Eliminate periodic inspections that require Machine shutdown and disassembly ü Provide real time trend of rider ring wear.

Rod Runout X, Y Eddy Probe System CMCP 540 Displacement Transmitter/Monitor ü Assurance that Rod Run Out is within tolerable limits after the machine is at operating speed and temperature. ü Provide early warning of gland seal failure caused by Rod Run Out. ü Alarms & Shutdown available.

Main Bearing Vibration X, Y Eddy Probes CMCP 540 Displacement Transmitter/Monitor ü Provide early warning of main bearing failure ü Alarms & Shutdown available.

Valve Temperature Cylinder Valve Temperature 44 Temperature Points on this machine. . . ü Valve failures account for greater than 40% of problems.

Valve Temperature RTD Cylinder Valve Cover ü Provide early indication of valve problem. ü Isolates the problem valve for repair. ü Trending condition allows for scheduled shutdowns. ü Prevent damage to cylinder lining that occurs when valve parts are ingested by the machine. CMCP 560 RTD Transmitter/Monitor

Explosion Proof Transducer Housings ü Transducer terminations ü (+) and (-) 24 Vdc Power Supplies ü CMCP 500 Series ü Transmitter/Monitors ü A/D Converter with DCS protocol.

Digital Link to HMI/PLC/DCS Explosion Proof Housings Xdrs Xdrs 24 VDC or 110/220 VAC Explosion Proof Housings Xdrs Ethernet Cat 5 e or Multi-Drop Link

Rod Load Phase Reference F=PA Inboard F=PA Outboard Pressure Sensor Mounted Inboard & Outboard through Cylinder Wall

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

Reciprocating Compressor Monitoring Summary Eddy Probe (Phase Reference) CMCP 786 Accelerometer (Crosshead Vibration) Eddy Probe (Rod Drop) Pressure Sensors CMCP 786 Accelerometer (Frame Vibration) Temperature Sensors