CO2 reciprocating compressor
Operation of CO2 compressor reciprocating compressor CO2 reciprocating compressor Reciprocating compressor start - up Start– up :- 1. Keep suction valve open, 4th stage discharge valve close, 4th stage vent valve and 4-1 by pass valve open 2. Open cooling water to cylinder jackets, oil cooler, 1st and 2nd stage inter cooler 3. Start the lubrication oil pump adjust pressure to 2.5 to 3kg/cm3 4. Set the turning gear and start barring moter – barring time to 2 minutes 5. Start main moter check abnormal sound in frame cylinder, valve chamber, check bearing temperature, check pressure of each stage and vibrations. 6. Close the drain valve of cylinders from the low pressure side . 7. Close the clearance valve of 1st ,2nd and 3rd stage, starting from the high pressure side. 8. Close gradually 4-1 by pass valve for loading up the compressor. When 4th stage gas temperature goes above 40 C , open C.W. in 3rd stage cooler. 9. Close gradually