QZ3NB—220钻井泥浆泵
QZ3NB-220钻井泥浆泵是青州石油机械厂研制的钻井泥浆泵；设计特点是优选了参数，适当地增长了冲程，合理地降低了冲数，改善了泵的吸入性能，延长了易损件的寿命。该泵主要用于油田及其它工矿企业；用于钻井，修井以及远距离输送液体介质等作业；主要配置10型钻机。
该系列泵严格按照石油工业部SY5138标准生产，并按照标准进行出厂试验
QZ3NB—220 Drilling mud pump
QZ3NB-220 drilling mud pump is the pump that the Qingzhou petroleum machinery factory research to manufacture. Design characteristics is an optimization parameter, increased the stroke properly, lowered the speed reasonably, improved the suction capability of the pump, prolonged the service life of wearing parts The pump used for oil-field and other industrial and mining establishments; Used for the drill, well workover and transport the liquid media；Mainly installed on 1000m rig.
The series pump produces according to SY5138 of the petroleum industry standard strictly, and carry through factory’s experiment according to the standard
QZ3NB—220钻井泥浆泵技术参数
QZ3NB—220 Drilling mud pump technical parameter
| 型式 Type | 三缸单作用活塞泵 Triplex Single Acting Piston Pump | 吸入管径 Suction inlet | Φ200 mm |
| 额定功率 Rated power | 220HP （160KW） | 排出管径 Discharge outlet | Φ76 mm |
| 额定转速 Rated speed | 130 SPM | 重量Weights | 7600 Kg |
机械效率按90% 容积效率按100%
| 泵 速 Pump Speed spm | 缸套直径Liner Size (mm) | ||||||
| 100 | 110 | 120 | 130 | 140 | 150 | 160 | |
| 理论排量 Theoretical Displacement L/min | |||||||
| 130 | 490 | 590 | 700 | 820 | 960 | 1100 | 1250 |
| 最高压力MPa Pressure Rating | 14.5 | 12 | 10.2 | 8.6 | 7.5 | 6.5 | 5.8 |
Based on 90% mechanical efficiency and 100% volumetric efficiency.