Installation, Operation & Maintenance Manual - Acme Fluid Handling

More documents

Recommendations

Info

2.5 Driver <strong>Installation</strong> / FlywheelsCorken vertical compressors may be driven by eitherelectric motors or combustion engines (gasoline, diesel,natural gas, etc.). Corken compressors are usually V-belt driven but they are also suitable for direct driveapplications as well. Direct drive applications require anextended crankshaft to allow the attachment of a rigidmetal coupling.NOTE: Flexible couplings are not suitable forreciprocating compressors. Never operate areciprocating compressor without a flywheel.Drivers should be selected so the compressor operatesbetween 350 to 825 RPM. The unit must not beoperated without the flywheel or severe torsionalimbalances will result that could cause vibration andhigh horsepower requirement. The flywheel shouldnever be replaced by another pulley unless it has ahigher wk2 value than the flywheel.A humid climate can cause problems, particularly inexplosion proof motors. The normal breathing of themotor, and alternating between being warm when runningand being cool when stopped, can cause moist air to bedrawn into the motor. This moist air will condense, andmay eventually add enough water inside the motor tocause it to fail. To prevent this, make a practice of runningthe motor at least once a week on a bright, dry day for anhour or so without the V-belts. In this period of time themotor will heat up and vaporize the condensed moisture,driving it from the motor. No motor manufacturer willguarantee their explosion proof or totally enclosed(TEFC) motor against damage from moisture.For installation with engine drivers, thoroughly reviewinstructions from the engine manufacturer to assure theunit is properly installed.2.6. Crankcase LubricationNon-detergent oil is recommended for Corken verticalcompressors. Detergent oils tend to keep wear particlesand debris suspended in the oil, whereas non-detergentoils let them settle in the bottom of the crankcase.When non-detergent oils are not available, detergentoils may usually be successfully substituted, althoughcompressors handling ammonia, amine, or imine gases arenotable exceptions. These gases react with the detergentand cause the crankcase oil to become corrosive andcontaminated. figures 2.6A and 2.6B show recommendedoil viscosities and crankcase capacities.Synthetic lubricants are generally not necessary. Pleaseconsult your lubricate supplier if you are considering theuse of synthetic oil.Acceptable Crankcase Oil Products for CorkenCompressorsConstant Weight - Non-Detergent - R&O InhibitedOil product ISO VI SAE Ambient Temp.Exxon®TERESSTIC 100 95 30 65° - 100° F68 95 20+ 45° - 70° F46 95 20 35° - 50° FMobil®RARUS 427 Reciprocating 100 95 30 65° - 100° FCompressor OilDTE Oil Heavy Medium 64 95 20+ 45° - 100° FDectol R&O Oil 44 95 20 35° - 50° FConoco®Dectol R&O Oil 100 98 30 35° - 50° F68 97 20+ 45° - 70° F46 99 20 35° - 50° FTexaco®Regal R&O Oil 100 92 30 65° - 100° F68 97 20+ 45° - 70° F46 102 20 35° - 50° FSun®SunVis 900 Oil 100 100 30 65° - 100° F68 100 20+ 45° - 70° F46 100 20 35° - 50° F2.7 Relief ValvesFigure 2.6A: Oil Selection ChartCompressor Approximate CapacityModel Quarts Liters91 0.9 0.8291 1.5 1.4491 3.0 2.8691 7.0 6.6Figure 2.6B: Oil Capacity ChartAn appropriate relief valve must be installed at thecompressor discharge. On Corken 107-style mountedunits a relief valve should be fitted in the pipingbetween the compressor discharge and the four-wayvalve (see figure 1.3A). Relief valves should be made ofa material compatible with the gas being compressed.Local codes and regulations should be checked forspecific relief valve requirements. Also, relief valvesmay be required at other points in the compressor’ssystem piping.2.8 Truck Mounted CompressorsCorken compressors are may be mounted on trucks toperform liquid transfer operations as described in section1.1. The compressor should be mounted so the inspectionplate is accessible for packing adjustment. The compressormust be protected against liquid as explained in section 2.4and a relief valve must be installed in the discharge pipingbefore the first downstream shutoff valve.12
Three types of mountings are typically used. The insidemounting (figure 2.8A) drives the compressor directly offthe PTO shaft. The PTO must be selected to drive thecompressor between 400 and 800 RPM. An extendedcompressor crankshaft is required so the U-joint yokemay connect to the compressor without removing theflywheel. Do not operate the compressor without aflywheel. Use a U-joint with a splined joint and makesure the connections are parallel and in line. The U-jointangle should be less than 15 degrees (see figure 2.8B).Always use an even number of U-joints.Figure 2.8A: Inside Transport MountingDepending on the truck design, the compressor may beoutside or top mounted as shown in figures 2.8C and2.8D to be V-belt driven. Power is transmitted througha U-joint drive shaft, jackshaft with two pillow blockbearings, V-belt sheave and V-belts. An idle pulley maybe used under the truck frame.2.9 Shutdown/Alarm DevicesFor many applications, shutdown/alarm switches willprovide worthwhile protection that may prevent seriousdamage to your compressor system. All electronic devicesshould be selected to meet local code requirements.Shutdown/alarm devices typically used on Corkencompressors are:Figure 2.8B: U-joint Drive for CompressorLow Oil Pressure Switch—shuts down the unit if crankcaseoil pressure falls below 12 psi due to oil pump failure orlow oil level in crankcase.High Temperature Switch—shuts down the unit if thenormal discharge temperature is exceeded. This isstrongly recommended for all applications. Typically,the set point is about 30°F (-1°C) above the normaldischarge temperature.Low Suction, High Discharge Pressure Switch—shutsdown the unit if inlet or outlet pressures are not withinpreset limits.Figure 2.8C: Outside Transport MountingVibration Switch —shuts down the unit if vibrationbecomes excessive. Recommended for units mountedon portable skids.Figure 2.8D: Top Transport Mounting13
Page 5 and 6: this by withdrawing vapors from the
Page 7 and 8: Corken’s automatically reversible
Page 10 and 11: 2.4 Liquid TrapsCompressors are des
Page 14 and 15: Chapter 3—Starting Up Your Corken
Page 16 and 17: Chapter 4—Routine Maintenance Cha
Page 18 and 19: Disassembly1. Unscrew the valve cap
Page 20 and 21: of damage to cylinders is corrosion
Page 22 and 23: 5. Push down on washer and insert r
Page 24 and 25: 5.9 Servicing the Four-Way ValveUnl
Page 26 and 27: Appendix AVertical Single-Acting Mo
Page 28 and 29: Appendix B—Vertical Single-Acting
Page 34 and 35: Appendix C—Compressor SelectionCo
Page 36 and 37: Appendix C—Compressor SelectionPr
Page 38 and 39: Appendix D—Outline DimensionsMode
Page 42 and 43: AUTOMATIC LIQUID TRAPLIQUID LEVEL S
Page 50 and 51: Appendix F—91 and F91 Head and Va
Page 52 and 53: Appendix F—91 and F91 Piston Asse
Page 54 and 55: Appendix F—91 and F91 Connecting
Page 56 and 57: Appendix F—91 and F91 Crankcase A
Page 58 and 59: Appendix G—291 and F291 Head and
Page 60 and 61: Appendix G—291 and F291 Piston As
Page 62 and 63:
Appendix G—291 and F291 Connectin
Page 64 and 65:
Appendix G—291 and F291 Crankcase
Page 66 and 67:
Appendix H—490, 491, and F491 Hea
Page 68 and 69:
Appendix H—490, 491, and F491 Pis
Page 70 and 71:
Appendix H—490, 491, and F491 Con
Page 72 and 73:
Appendix H—490, 491, and F491 Cra
Page 74 and 75:
Appendix I—691 and F691 Head and
Page 76 and 77:
Appendix I—691 and F691 Piston As
Page 78 and 79:
Appendix I—691 and F691 Connectin
Page 80 and 81:
Appendix I—691 and F691 Crankcase
Page 82 and 83:
Appendix J—D891 Head and Valve As
Page 84 and 85:
Appendix J—D891 Crosshead Guide A
Page 86 and 87:
Appendix J—D891 Connecting Rod As
Page 88 and 89:
Appendix J—D891 Crankcase Assembl
Page 90:
CORKEN, INC. • A Unit of IDEX Cor
show all

Installation, Operation & Maintenance Manual - Acme Fluid Handling

You also want an ePaper? Increase the reach of your titles

Delete template?

Save as template?