QZ3NB—800钻井泥浆泵
QZ3NB-800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20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—800 Drilling mud pump
QZ3NB-800 drilling mud pump is the pump that researched and manufactureed by Qingzhou petroleum machinery factory . The design characteristics is an optimization parameter, it can increase the stroke properly, lower the speed reasonably, improve the suction capability of the pump, prolong the service life of wearing parts .The pump is used for oil-field and other industrial and mining establishments,and also used for the drilling, well workover and transporting the liquid media. It is mainly installed on 2000m rig.
The series are produced according to SY5138 of the petroleum industry standard strictly.
QZ3NB—800钻井泥浆泵技术参数
QZ3NB—800 Drilling mud pump technical parameter
| 型式 Type | 三缸单作用活塞泵 Triplex Single Acting Piston Pump | 冲程长度 Stroke Length: | 273 mm |
| 额定功率 Rated power | 800HP （597KW） | 吸入管径 Suction inlet | Φ254 mm |
| 额定转速 Rated speed | 130 SPM | 排出管径 Discharge outlet | Φ102 mm |
| 齿轮传动比 Gear ratio | 3.483 | 重量Weights | 17200 Kg |
| 泵速 Pump Speed (SPM) | 缸套直径Liner Size (mm) | |||||||||
| 120 | 130 | 140 | 150 | 160 | 170 | 180 | ||||
| 理论排量Theoretical Displacement (L/s) | ||||||||||
| 130 | 20.1 | 23.5 | 27.3 | 31.3 | 35.6 | 40.2 | 45.1 | |||
| 110 | 17.1 | 18.3 | 21.2 | 23.5 | 27.7 | 31.2 | 38.2 | |||
| 100 | 15.5 | 18.1 | 21 | 24.1 | 27.4 | 30.9 | 34.7 | |||
| 90 | 13.9 | 16.2 | 18.9 | 21.7 | 24.6 | 27.8 | 40.6 | |||
| 额定压力 MPa Pressure Rating | 26.5 | 22.5 | 19.4 | 16.8 | 14.8 | 13.1 | 11.7 | |||
机械效率按90% 容积效率按100%
Based on 90% mechanical efficiency and 100% volumetric efficiency.