Zhoushan Haolide Pump Industry Co.,Ltd
The main production of self - suction circulation filter pump and
Stainless steel submersible pump can not idle reason: the general stainless steel submersible pump cooling method is water-cooled. Whether it is internal water cooling, external water cooling is still the surface and interior double water cooling method, water as a medium to complete the stainless steel submersible pump cooling cooling operations. Stainless steel submersible pump idling, no water to the submersible pump winding, bearing and other heating parts for cooling, so it is not allowed to idle submersible pump.
Submersible pump internal and external water cooling cooling method cooling better, the submersible pump chamber filled with water, stator core, stator winding, rotor core and rotor winding (rotor guide bar and rotor end ring) are immersed in water, directly by the machine's water cooling. The heat generated by the loss of stator iron in the motor, the loss of resistance in the stator groove winding and the loss of resistance in the end winding goes directly through the stator core and is carried away by the cooling water transferred from the housing to the outside of the housing. Part of the heat generated by the rotor winding resistance loss and rotor iron loss is directly transmitted to the stator through the air gap, and the cooling water outside the motor is taken away by the stator. Another part to the rotor cavity of the water, this section with the stator end windings heat passed on to another part of the inner cavity filling water resistance loss of heat and mechanical loss of heat, the inner cavity filling water to the stator core, chassis and housings, eventually after a motor casing and bearing parts, such as appearance to the cooling water away.
The reason why the submersible pump can not idle is also the pump head part of the submersible motor, many bearing bushes are water smooth, if there is no water in the case of idling, dry grinding between the pump shaft and bearing bush, motor is very simple overload and heat, incineration motor