ZJ70 / 4500DB Rig

Rig adopts double motor drive single shaft lshift AC frequency conversion
realize double stages stepless speed requlation
ITEWWOTKS
electric drive control system adopts Siemens PLC and AC frequency conversion technology, The whole rig control system adopts the
redundant heat backup mode, compatible , fault-tolerant performance is good, Equipped with high pump pressure F - 1600 triplex cylinder
mud pump, Suoporing the integration of driler control room, driller in driler's control room can complete the main operation.

1 .Give ful play to the advantage of advanced digital AC frequency conversion electric transmission, and uses the machine, electricity, liquid
gas, digital control integration design, improve the control accuracy, simplifies the structure of drilling rig.
2. Eauipment on the floor is installed at low position and overall hoisted. Reducing the workload of aerial work, improve the security
3.Electric transmission adopts vector frequency conversion dive svstem, realize the fuly digital control operation. obligate interface fo
remote fault diagnosis expert system, can realize the collection of control parameters and driling parameters (signal), display, storage
printing,remote monitoring and management.
4.Realizing bit pressure, driling rate, pump pressure, pump capacity to large range, high precision effectively control and greatly improved
the driling process. Using the characteristics of frequency conversion technology, make Drawworks hover at zero speed, changed the
traditional way of driller operation.
5.The operation control system using dual PLC redundancy design, improve the reliabity of the system. 1600 high pressure mud pump can
improve driling speed, ensures the bit reliable high-speed rotation, lengthen the service life of the drll bit, improve drling efficiency