Feed the new drilling line (fast line) through the side of the drawworks drum.
把快绳头穿过绞车辊筒的一边。
2
Procedure of manually combing large size unit's Feed water Pump is complex and easy to cause much change of drum level.
大机组给水泵手动并泵操作复杂，易造成汽包水位大幅波动。
3
Using Petrochemical Company feed pump as example, the pump application characteristics of drum balance mechanism in multistage was discussed, and malfunction problem of the feed pump was analyzed.