Cast iron submersible sewage pump For Construction sewage ,
Commercial Sewage Pump
QW type submersible non-clogging sewage pump installation, operation and maintenance:
- When installing and handling the pump, it is strictly forbidden to
make the cable, so as not to cause the cable inside break, the
connector is off-line, etc. The pump can not run normally, even
burn the motor;
- Make sure that the grounding cable of the pump cable is properly
grounded. When the pump is working, it is strictly forbidden to
close the working area or touch the pump. In order to reduce the
risk of electric shock, it can only be connected to the appropriate grounding socket.
- Do not overload operation;
- The cable used with the pump can not be less than 1.2 times the
area of the pump cable;
- When installed, the pump must be fastened, but can not make the
cable force, or with the pump start and stop when a rotation;
- run-time found that the pump is not water, you should check whether
the pump is reversed, or pump outlet at the check valve inside the
air is not drained;
- Regular inspection of the pump motor phase or relative between the
insulation resistance, the value should not be less than 2MΩ, or
should be disassembled;
- Electric pump in the specified working conditions, the normal
operation after six months, should check the oil chamber sealing
situation, such as oil in the oil is emulsified or water
precipitation, should be replaced 10 # oil and mechanical seals;
- After a year of normal operation of the pump, it should be
overhauled, replace the wear parts that have been worn and check
the status of the fasteners. At the same time, replace the grease
to ensure that the pump is well lubricated during operation.
- If the pump is not in use, please clean it and dry it.
QW (WQ) type submersible non-clogging sewage pump repair and
- The pump should be hand management use and regularly check the pump winding and the insulation resistance
between the chassis is normal.
- Each time, especially for thicker and thicker slurry, the pump
should be placed in the water for several minutes to prevent the
sediments left to ensure that the pump clean.
- If the pump is not used for a long time, the pump should be removed
from the water, do not immerse in water for a long time to reduce
the motor stator windings damp the opportunity to increase the life
of the pump.
- In the conventional state of each pump after the use of 3 00 ~ 500
hours after the filling or replacement of oil in the oil tank (10 ~
30 oil), so that the mechanical seal to maintain a good lubrication
state, improve the mechanical seal life.
- After the pump is removed and repaired, the cabinet assembly must
be inspected by 0.2MPa airtight test to ensure that the motor is
sealed and reliable.
- The seal ring between the impeller and the pump body has a sealing
function, such as sealing damage will directly affect the pump
performance, if necessary, should be replaced.
QW type submersible non-clogging sewage pump structure diagram:
- power cable
- motor connection
- junction box
- motor cover
- upper shaft seat
- motor housing
- shaft (rotor)
- oil and water probe
- oil chamber
- Mechanical seal
- rear cover
- pump body
- impeller bolts
- seal ring