With advantage of simple structure, high
efficiency, low noise, safe and reliable operation, easy
installation and maintenance. It is suitable for water extraction
from deep wells, geothermal wells and oceans, it can also be used
for rivers, reservoirs, canals and other extraction; mainly used
for irrigation and livestock water mountain plateau, and also for
the drainage from cities, factories, railways, mines, construction
sites.
1. Power frequency *0Hz, rated voltage **0v or
**0v (tolerance ± 5%) of the three-phase AC
power.
2.Solid content (by mass) is not more than
0.*1%.
3. The PH value of pumped liquid between
6.**8.5.
4. The temperature of transmission medium does
not exceed **0 ℃.
5. The pump inlet must below 1m of the moving
water level, but submersible length not more than *0m of the static
water level, the depth between pump bottom and well bottom at least
1m.
6. Requires well integrity, wall smooth, well
pipes shall not stagger.
Structural features
1.QJ series wells submersible pumps, with two
major components of submersible three-phase asynchronous motors and
pump parts. The electric motor connected to upper part of pump
directly, the motor shaft end is set with a reliable seal,
effectively prevent the exchange between the cooling fluid within
the electric motor and the pumped medium, to ensure safe and
reliable long-term operation of the pump.
2. This submersible pumps is single-suction
multi-stage vertical centrifugal pump; the submersible motors is
water-filling wet, vertical wells with submersible asynchronous
motor. The motor and pump are direct connection through drum
coupling set.
3. The motor windings are polyethylene
waterproof nylon jacket magnet wire. Motor cavity can be filled
with clean water.
4. Motor guide bearings are water lubricated
type. There is thrust bearings at lower part of the motor to
withstand the vertical axial forces of pump, the thrust bearing for
high head pump are nickel-containing copper segments, and the other
grinding part is imported Rockefeller Perth skateboarding, to
withstand axial force of pump .
5. There is additional axial force carrier in
the middle of the motor and pump, head can be lifted to
**0m.
