Poles of oil mains Nm 1250 ... 10000 and electric pump units on the ikhosnovov are designed for transportation of oil through trunk pipelines. P>
Design
Poos type Nm 1250 ... 10000 - centrifugal horizontal single -stage spiral type with a double -sided entrance work wheel, equipped with a forced lubrication bearings. The pump NM 10000-380-2 In addition, a bilateral stubborn bearing of the Mitchell type sliding is used.
end seals of the rotor-mechanical ends single with hydraulic unloading and additional slit seal in accordance with the API 682.
oil entering the cooling of ends 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 torque from the engine to The pump is carried out using an elastic plate coupling.
Synchronous are used as pump drives. or asynchronous explosion -proof engines.
units consist of a pump, explosion-proof engine, elastic plate coupling, fencing of an elastic plate coupling, a common oil mount with pipelines within the oil supply unit, as well as drain drain pipelines.
units admit the supply of pumping pumps and engine on a single hard foundation frame.
The parameters of the pumped environment
temperature, ° С span>
-10 ... + + 10 ... + 50
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density at 15 ° C, kg/m 3 Sup>
800 ... 900 < /span> span>
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Mass share of mechanical impurities, % no more td>
5 ... 100 < /span> span>
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The maximum volumetric concentration of solid inclusions, %
0.05
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The maximum linear size of solid particles, mm
0.4
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Mark
feed, m³/h
Press, M
allowed cavitation reserve, m
Rotation frequency, rpm
Power power, kW
PPD pump, %
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nm 1250-260-2.1 < /td>
1250 < /span> span>
260 < /span> span>
20 < /span> span>
3000 < /span> span>
928 < /span> span>
82 < /span> span>
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nm 1250-260a-2.1 < /td>
1135 < /span> span>
215 < /span> span>
20 < /span> span>
3000 < /span> span>
697 < /span> span>
82 < /span> span>
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nm 1250-260b-2.1 < /td>
1070 < /span> span>
192 < /span> span>
20 < /span> span>
3000 < /span> span>
587 < /span> span>
82 < /span> span>
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nm 1250/0.7-260-2.1 < /span> td>
900 < /span> span>
255 < /span> span>
16 < /span> span>
3000 < /span> span>
707 < /span> span>
79 < /span> span>
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nm 1250/1.25-260-2.1 < /span> td>
1565 < /span> span>
270 < /span> span>
31 < /span> span>
3000 < /span> span>
1269 < /span> span>
78 < /span> span>
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Technical characteristics DIV>