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一、前言我厂有三台4L-20/8型、20米~3/分空压机,过去均采用铸铁活塞环由专用注油器向气缸注油润滑,每年需耗13~#压缩机油1000公升/年·台。现我厂在1~#机组上试用南京塑料二厂生产的聚四氟乙烯塑料活塞环(简称塑环)代替铸铁活塞环,取消了注油器,实现气缸无油润滑。该机组每天连续运行16小时已两月余,运行情况良好。排气得以净化,排气温度及电流值并无增加,排气量也未减少。且每天节约13~#压缩机油3公斤/天·台。检验结果证明,气缸壁基本上无磨损且比用铸铁环时更光滑,既延长了气缸寿命、也节约维修费用。塑环磨耗
I. Introduction I plant has three 4L-20/8 type, 20 m ~ 3 / min air compressor, the past are used cast iron piston ring by a dedicated oil injector to the cylinder lubrication, annual consumption of 13 ~ # compressor oil 1000 liters / Year · Taiwan. Now I plant in the 1 ~ unit trial Nanjing Plastic Factory production of PTFE plastic piston ring (referred to as the plastic ring) instead of cast iron piston rings, canceled the oiler to achieve non-oil cylinder lubrication. The unit has been running continuously for 16 hours more than two months a day, running in good condition. Exhaust to be purified, the exhaust temperature and current values did not increase, the displacement did not decrease. And save 13 ~ # 3 kg per day compressor oil / day Taiwan. Test results show that the cylinder wall is basically no wear and more smooth than the use of cast iron ring, which extends the life of the cylinder, but also save on maintenance costs. Plastic ring wear