Page 194 - Industrial Power Engineering and Applications Handbook

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Water level
indicator Iil
I

sw

Fl-3
Water level Supporting clamps
guard?

Non return valve

Figure 7.6 Typical arrangement of a submersible pump

steel generally while those with longer shafts have shafts 0 Flood water controls
made of carbon steel with stainless steel protective sleeves De-watering of coal, tin, copper or gold mines, coal
in the bearing portion. washing and sludge pumping
Pumping industrial effluents
Sizes of submersible motors Sewage duties, industrial slurries and ash handling
De-watering of dirty water when building roads, dams,
Submersible motors up to 3.50 h.p. and suitable for voltages harbours, tunnels, etc.
up to 3.3 kV are being produced in India and as large as Seawater services on onshore platforms, for drinking,
SO00 kW, 11 kV by KSB in Germany (Figure 7.8). washing and firefighting services on off-shore platforms
Seawater lift pumps for cooling gas compressors on
Applications oil platforms
Seabed trenching from remote-operated vehicles (Figure
0 Water extraction from bore holes and river beds for 7.9)
water supply and irrigation Oil extraction