Pumps oil trunk types Nm 1250 ... 10000 and electric pump units on the iconum For transportation of oil through trunk pipelines.
design
pump type nm 1250 ... 10000 - centrifugal horizontal single -stage spiral type with a worker The double -sided entrance wheel, equipped with lubricant bearings bearings. The pump NM 10000-380-2 In addition, a bilateral stubborn bearing of the Mitchell type sliding is used.
Ending seals of the rotor-mechanical ends single with hydraulic unloading and additional slit seal in accordance with API 682. Double end seals of the Burgman double end seals are used in the NM 10000-380-2 pump »With the system of ensuring performance.
Oil entering the cooling of end seals is cleaned in a cyclone separator. For the perception of radial loads, supporting sliding bearings with high bearing capacity are used, and for the perception of axial loads-double radial-assemblers of rolling SKF.
Twisting the torque from the engine to the pump is carried out using an elastic plate coupling.
Synchronous or asynchronous explosion -proof engines are used as pump drives.
units consist of a pump, an explosion -proof engine, an elastic plate coupl, a fence of an elastic plate coupling, a common oil fixture with pipelines within the oil supply unit, as well as leakage drainage pipelines. << /span>
units allow the supply of the pump and engine on a single hard foundation frame.
parameters of the pumped environment
| temperature, ° С | -10 ... +50 | |||||
| Density at 15 ° C, kg/m 3 | 800 ... 900 | |||||
| Mass share of mechanical impurities, %, no more than | 5 ... 100 | |||||
| The maximum volumetric concentration of solid inclusions, % | 0.05 | |||||
| The maximum linear size of solid particles, mm |
0.4 |
| Mark | feed, m³/h | Press, M | allowed cavitation reserve, m | Rotation frequency, rpm | Power power, kW | PPD pump, % |
| Nm 7000-210-2.1 | 7000 | 210 | 52 | 3000 | 3825 | 90 |
| Nm 7000-210a 2.1 | 6630 | 188 | 52 | 3000 | 3244 | 90 |
| Nm 7000-210B-2.1 | 6340 | 172 | 52 | 3000 | 2838 | 90 |
| Nm 7000/0.5-210-2.1 | 3500 | 205 | 50 | 3000 | 2075 | 81 |
| Nm 7000/0.7-210-2.1 | 5000 | 210 | 45 | 3000 | 2893 | 85 |
| Nm 7000/1.25-210-2.1 | 8750 | 210 | 69 | 3000 | 5063 | 85 |
