QJ Deep Well Submersible Pump , submersible motor pump 2~500m³/h
Summary of submersible pumps for QJ wells
QJ-type submersible pump is a motor and pump directly into the
water work of the water lifting equipment, it is suitable for
extraction from the deep wells of groundwater can also be used for
rivers, reservoirs, canals and other water lifting projects: mainly
for farmland irrigation and plateau mountain Human and animal
water, but also for cities, factories, railways, mines, site for
Key Features of Submersible Pump with QJ Type
- Motor, water pump body, submerged into the water to run, safe and
- There is no special requirement for the well pipe and the water pipe (ie, the steel pipe well, the ash pipe
well, the soil well and so on can be used; under the pressure
permission, the steel pipe, the hose, the plastic pipe can be used
as the water pipe).
- Installation, use, easy maintenance Simple, small footprint, no
need to build pump room.
- Simple structure, saving raw materials. Submarine pump use of the
conditions are appropriate, proper management and life have a
QJ well submersible pump structure description
- QJ submersible pump unit consists of: water pump, submersible motor (including cable), water pipes and
control switch composed of four parts. Submersible pump for the
single-suction multi-stage vertical centrifugal pump: submersible
motor for the closed water-filled wet, vertical three-phase
squirrel cage motor, motor and pump through the claw or in the key cylinder coupling directly equipped with different
Specifications of the three-core cable: starting equipment for
different capacity levels of air switch and auto-decompression
starter, the water pipe for the different diameter of the steel
pipe made of flange connection, high-lift pump with gate valve
- Submersible pump Each stage of the baffle is fitted with a rubber
bearing; the impeller is fixed to the pump shaft with a conical
sleeve: the deflector is made of a twist or bolt.
- High-lift submersible pump with a check valve on the upper part, to
avoid downtime water hammer caused damage to the unit.
- Submarine motor shaft with a labyrinth sandstand and two reverse assembly of the skeleton oil seal, to prevent the flow of sand into the
- Submersible motor with water lubricated bearings, the lower part of
the rubber pressure regulating film, pressure regulating spring,
composed of surge chamber, adjust the pressure caused by
temperature changes; motor winding with polyethylene insulation,
nylon sheath water-resistant magnet wire, cable connection Way by
QJ-type cable connector technology, the connector insulation off
scraping paint layer, were connected, welding firmly, with raw
rubber around - layer. And then wrapped with water-resistant
adhesive tape 2 to 3 layers, 2 to 3 layers outside the waterproof
tape or glue with a glue layer of rubber tape (bike tire> to
prevent water seepage.
- The motor is sealed, the use of precision stop screw, cable outlet
plus Kejiao sealed.
- There is a water injection hole on the top of the motor, there is a
vent hole, Bu Department to make a hole.
- The lower part of the motor is equipped with a thrust-thrust
bearing, the thrust bearing has a groove with dry cooling, and it
is grinding the stainless steel thrust plate, bearing the pump on
the plant axial force.
Technical selection parameters table
|NO||Model||Flow (m3/h)||Head (m)||Motor (KW)||Rated current (A)||Outlet pipe diameter||Matching cable specifications|
|Motor Power (KW)||Rated Current (A)||Outlet pipe diameter|
|Matching cable specifications|