Double-horsehead Pumping Unit
Double-horsehead beam pumping unit is balanced with mounting horsehead on the back of walking beam, inside counterbalance and hanging balancing weight on the back-horsehead.
Preposition type double-horsehead beam pumping unit is balanced with mounting horsehead on the back of walking beam, inside counterbalance and hanging balancing weight on the back-horsehead. It displays simpler structure, easier ways of rebalancing and maintenance, smaller additional dynamic load, longer stroke length, less energy consumption, greater efficiency and longer service life. It is suitable for extraction of low and medium viscosity petro and high water content petro.
Compared with conventional pumping units, this Double-horsehead Pumping Unit has significant advantages:
1.The front-mounted structure of the pumping unit eliminates crank balance. The structure is simpler and the balance adjustment and maintenance are more convenient.
2.The pumping unit has stable operation, small additional dynamic load, long stroke, low energy consumption and high comprehensive efficiency. It is suitable for the exploitation of middle and low viscosity crude oil and high water cut crude oil.
- The front structure, suspended point load and the weight of the balance block by the beam bearing, reduce the reducer, crankpin, connecting rod, beam and other transmission parts load, can improve its service life and reliability.
- Good balance effect. The balance block can be divided into fixed counterweight and adjustable weight.
Double-horsehead Pumping Unit from Sanjack Petro, Dongying City, Shandong Province, China.
|stroke(m)||4, 3.3, 2.6||5, 4.2, 3.3||5, 4.2, 3.3||5, 4.2, 3.3|
|SPM(min-1)||4, 5, 6||4, 5, 6||4, 5, 6||4, 5, 6|
|Balancing type||Beam balancing|
|Structure unbalanced (kN)||34.5||30.2||27.3||40.6|