壳牌高压往复式压缩机组应用经验.ppt

壳牌高压往复式压缩机组应用经验Shell high-pressure reciprocating compressor experience Classification of wearing parts磨损部件的分类 small / big end bearings小头/大头轴承 cross head十字头 cross head pin十字头销 main bearings主轴承 valve seats , valve cages阀座，阀盖 valve / cylinder cover bolts阀/缸盖螺栓 piston liner ( Ni Resist )缸壁(镀镍) piston liner ( Grey Iron )缸壁(灰铁) Classification of wearing parts磨损部件的分类 rod packing活塞杆填料 rider / piston ring支撑/活塞环 Valves阀 piston rod活塞杆 wiper rings刮油环 compartment seals间隔密封 valve un-loader device卸压阀 packing box填料盒 Key experimental findings实际应用现象 Viscosity reduction is a result of gas dissolving in oil 粘度下降是由于气体溶入润滑油中 Gases are less soluble in PAG fluids than mineral oils PAG类润滑油对气体的溶解低于矿物油 % viscosity reduction caused by a gas is generally the 气体引起的粘度下降: SAME for all mineral oils at the same pressure同样压力下对所有矿物油相同 SAME for all PAG fluids at the same pressure (but less than in mineral oils)同样压力下对所有PAG润滑油也相同(但低于矿物油) “Heavier” gases are more soluble in all fluids”含重组份“气体在润滑油中溶解性增加 丁烷butane 丙烷propane 乙烷ethane 甲烷methane Gases are less soluble at higher temperature在高温下气体的溶解性小 Gases are less soluble at lower pressures 气体在低压下溶解性小 Key effects in the compression of hydrocarbon gases压缩烃类气体对润滑油的主要影响 Benefits of using Shell Madrela GP in compression of high pressure hydrocarbon gases高压烃类气体中使用莫雷拉GP的优势 Benefits of using Shell Madrela GP in compression of high pressure hydrocarbon gases高压烃类气体中使用莫雷拉GP的优势 Benefits of using Shell Madrela GP in compression of high pressure hydrocarbon gases高压烃类气体中使用莫雷拉GP的优势 Benefits of using Shell Madrela GP in compression of high pressure hydrocarbon gases高压烃类气体中使用莫雷拉GP的优势 UK North Sea – Brent A, B, C, D. 英国北海 – 布伦特A, B, C, D Operation commenced 1976-7 自1976年开始运营 One large recip (14,000 HP/10 MW) per platform. Dresser Clark CLBA6.每个海上平台一个往复式压缩机 6 cylinder, double acting, two stage machines 6缸双作用，2级压缩机 Cylinder lubricant Valvata 680J使用威华达J680润滑油 Suction pressure 100 bar, reinjection pressure 410 bar. Piston speed 4.76 m/2 (937 fpm)入口压力100巴，注气压力410巴，活