Heavy Duty Balanced Opposed Compressors - Ariel Corporation

More documents

Recommendations

Info

Section 3 - Maintenance For Models: JGH:E:K:T Adjustment of Balance Valves Fed by Primary/Secondary Divider Blocks NOTE: Set secondary balance valves before setting primary balance valves. 3 5 If the system contains no secondary balance valves downstream of a secondary divider block, proceed to step 4. 1 4 6 1. Select one secondary divider block that feeds one or more secondary balance valves nearest the compressor cylinder/packing. 2 2. For the selected secondary divider block and secondary balance valves, perform steps 2 through 7 in "Adjustment of Balance Valves Fed by a Divider Block" above. 7 3. Repeat steps 1 and 2 for any remaining secondary divider blocks that feed one or more secondary balance valves nearest the compressor cylinder/packing. 8 4. Select one primary divider block that feeds one or more primary balance valves located prior to a secondary divider block or lube point. 5. For the selected primary divider block and balance valves, perform steps 2 through 7 in "Adjustment of Balance Valves Fed by a Divider Block" above. 1. Primary Balance Valve 2. Primary Balance Valve Pressure Gauge 3. Adjustment Cap 4. Lock Nut 6. Repeat steps 4 and 5 for any remaining primary divider block that feeds FIGURE 3-10 Primary/Secondary Divider Block System 7. one or more balance valves located prior to a secondary divider block or lube point. After setting all balance valves in the force feed system, operate the system for 4 to 6 hours, then repeat steps 3 through 7 in "Adjustment of Balance Valves Fed by a Divider Block" above for each primary or secondary divider block. Subsequent Compressor Start-Up 5. Primary Divider Block Pressure Gauge 6. Primary Divider Block 7. Secondary Divider Block Pressure Gauge 8. Secondary Divider Block 9. Secondary Balance Valve 10. Secondary Balance Valve Pressure Gauge 1. Verify tightness of all fittings and fix any known leaks. Purge force feed lube system. 2. If the force feed lube system has been disassembled or parts replaced since the last startup, purge the force feed lube system with a high-pressure hand purge pump. When purging the system, use the same oil that is recommended for the cylinder application, to remove any trapped air or gas in the system. DO NOT USE ANY OTHER FLUIDS FOR PURGING! Call the Ariel Reponse Center for details about purchasing a hand purge pump. 3. Start the compressor and bring up to normal operating pressure. 4. Operate the unit for 2 to 3 hours to allow the operating pressures to stabilize. DO NOT adjust the balancing valves immediately after startup. It is possible that some lube point injection pressures will fluctuate after a short period of run time and the system pressures will stabilize as components increase in temperature. 5. See the cylinder lube sheets for balance valve locations and proper spring type for each device. 6. Select one divider block that feeds one or more balance valves. PAGE 3-20 3/11 9 10
For Models: JGH:E:K:T Section 3 - Maintenance 7. Monitor the selected divider block gauge for one minute and record the minimum and maximum pressures in Appendix E. 8. See "Balance Valves" if any of the conditions below occur: a. The difference between the maximum and minimum recorded divider block pressures exceeds 1200 psig. b. The maximum recorded balance valve pressure exceeds 85% of the maximum recorded divider block pressure. c. The divider block gauge exhibits erratic needle movement as the divider block cycles. DO NOT RUN UNIT WITH LEAKING BALANCE VALVES. Ariel offers a balance valve seal repair kit - Part No. A-8005-K. To maintain the force feed lube system, record maximum injection pressure indicated at the divider block gauge, balance valve set pressure, and divider block cycle time at least once a day for each zone in the lube system. Oil Head at Lube Points TABLE 3-4 Ariel Balance Valve Part Numbers Description ARIEL Part Number Balance Valve without Spring CA-8005 Balance Valve Springs See ER-57 Balance Valve Seal Repair Kit A-8005-K Balance Valve Plug A-10330 Pressure Gauges See ER-57 The force feed system provides a minimum 1-inch (25 mm) of oil head at lube points to extend check valve life. Where 1-inch (25 mm) of head is not inherent, an oil trap fitting is provided (see Fig. 3-11). Gas Inlet Debris Screens Cone type inlet gas debris strainers with 100 mesh per inch (150 micron) screen and perforated metallic backing are installed between the inlet scrubber and cylinder suction flange. They catch dirt and foreign matter in the gas which prevent proper lubrication. Monitor inlet debris strainers by differential pressure and clean them before differential pressure approaches screen collapse pressure. Ariel recommends high differential pressure alarm/shutdown switches to protect against screen collapse. Injection Oil Inlet Filter To Check Valve To Lube Point FIGURE 3-11 Oil Head Trap Fittings An in-line oil filter or fine screen is required between the oil supply or supply tank and the force feed lubricator pumps. Ariel recommended filtration is 5 micron nominal. The compressor filtration system is adequate for systems that use frame lube oil for the force-feed cylinder and packing injection. For separate force-feed lube oil supplies, a filter must be installed by the packager. Force Feed System Design & Operating Parameters To optimize force-feed lubrication system operation, Ariel uses these general guidelines: 1. Maintain lube ratios within prescribed limits and cycle times as low as possible (normally 10 sec minimum) to lubricate each point as frequently as possible. 2. Multiple pumps with manifolding ensure 150% of the normal lubrication rate during break-in. 3. Do not operate pumps below 20% of full stroke else pump output becomes unreliable. Full stroke is .438 inch; 20% of full stroke is .088 inch. 4. In some applications, a single divider section delivers lubrication to both a packing and a cylinder 3/11 PAGE 3-21
Page 1: Maintenance and Repair Manual For J
Page 4 and 5: For Models: JGE:H:K:T Oil Strainer.
Page 6 and 7: For Models: JGE:H:K:T SECTION 5 - S
Page 8 and 9: For Models: JGH:E:K:T FIGURE 4-23
Page 10 and 11: For Models: JGH:E:K:T General Safet
Page 12 and 13: For Models: JGH:E:K:T Ariel Contact
Page 14 and 15: Section 1 - Tools For Models: JGH:E
Page 16 and 17: Section 1 - Tools For Models: JGH:E
Page 18 and 19: Section 2 - Instrumentation For Mod
Page 32 and 33: Section 3 - Maintenance For Models:
Page 58 and 59: Section 4 Part Replacement For Mode
Page 100 and 101:
Section 4 Part Replacement For Mode
Page 102 and 103:
Section 5 - Start Up For Models: JG
Page 104 and 105:
Page 106 and 107:
Page 108 and 109:
Page 110 and 111:
Page 112 and 113:
Section 6 - Troubleshooting For Mod
Page 114 and 115:
Section 6 - Troubleshooting For Mod
Page 116 and 117:
Appendix A Ariel Fasteners and Torq
Page 118 and 119:
Page 120 and 121:
Page 122 and 123:
Appendix B - Clearances For Models:
Page 124 and 125:
Page 126 and 127:
Page 128 and 129:
Appendix C - Frame Specifications F
Page 130 and 131:
Appendix C - Frame Specifications F
Page 132:
Appendix D Compressor Clearance, Oi
show all

Heavy Duty Balanced Opposed Compressors - Ariel Corporation

Create successful ePaper yourself

Delete template?

Save as template?