ZJ50/3150DB Drilling Rig

  The rig is driven by AC-VFD-AC. Integrate and use the advanced maturity technology both at home and abroad, such as numerical control frequency conversion, vector controlling, bus communication, computer and PLC, etc. The main function realizes all digital control. The substructure is installed at low position and whole-raised. The drilling floor is 7.5m high and equipped with the mechanized tool. 50DB drawworks is single shaft, frequency conversion, and speed regulation in structure. Brake adopts EATON WCSB436 pairs of gas push water-cooling end face type brake and numerical control energy consumption arrestment. Utilize auxiliary drive device can realize permanent bit pressure automatically feed bit and meet an urgent need on function. Rotary power is supplied by the electric motor of drawworks, one-shift stepless speed regulation.

   Driller control cabin adopts the electricity, digitization, air, the liquid control, and puts show, store and video functions together, which supply driller with the centralized, convenient, safe, comfortable working condition. The main power system adopts 2 sets MTU/DDC joint-track type, electric-injection, diesel generators, the oil consumption is low. It can realize auto-control and auto-combining machine. Effective capacity of the circulating system is 280 m3, equipped with perfect solids-control devices and vacuum degasser, etc.