Shandong Bangtai Mechanical and Electrical Equipment Co., Ltd.

#>The overall structure of the pump is vertical, the whole machine is submersible, it is mechanical and electrically integrated, and it absorbs water in a downward suction type. It can drain and drain the shallow water on the surface of the working surface. The product mainly consists of two parts: current-carrying parts and motor. The structure of the electric pump can be divided into external type, internal type and semi-internal type according to the discharge mode of liquid flow.
Pump body and impeller: On the basis of experimental tests, the pump body and impeller are carefully selected and matched to ensure good non-clogging, strong overflow capacity, high efficiency, flat power curve, and no overload. The impeller is stable and precise, with small vibration and smooth operation.
Motor: Specially designed submersible motor, protection, grade insulation allows the temperature to rise. Under normal temperature rise conditions, the motor insulation life is extended, and the submersible cooling effect is good, the actual temperature rise is low, and the motor insulation life is longer. .
. Motor cooling: External electric pump: The heat of the motor is generated through the casing. As long as the medium submerges half of the motor stator casing, the pump can operate reliably and safely. The more submerged, the more beneficial it is for motor cooling. Built-in electric pump: The electric pump adopts a mezzanine forced cooling structure. Even if the motor runs dry, the temperature rise of the motor can be controlled below degrees Celsius, which greatly improves the life of the whole machine. It is suitable for places with shallow water levels. The product can be used in places without water. It can run dry for a long time under water conditions and can be used in an unmanned environment, which reduces labor costs.
Shaft seal: The motor shaft seal adopts two independent mechanical seals connected in series to form two reliable sealing lines of defense. The first channel is in the medium in the pump, and the sealing surface is pressed tighter as the medium pressure increases, effectively preventing water from entering the oil chamber. The second channel is in the oil chamber, preventing oil from entering the motor. If the first channel Failure (its working conditions are better than those of the second pass), the second pass can still prevent oil and water from entering the motor. The bellows-type mechanical seal cooperates with the innovative structural cavity to further greatly improve the reliability of the shaft seal. Under normal use, the trouble-free operating time exceeds.
. Oil chamber: The oil chamber is to prevent the medium. A barrier enters the motor from the pump shaft to prevent the medium from entering the motor. If the first mechanical seal leaks, the buffer medium in the oil chamber cannot directly enter the motor. At the same time, the friction surfaces of the two independent mechanical seals are lubricated and cooled to make the mechanical seal work. Reliable, except that
it can still take away the heat of the lower bearing and some heat of the motor.
Bearings: The lower double-row angular contact bearing has strong load-bearing capacity. Together with the upper deep groove bearing, it forms a reliable support for the motor water pump shaft. It has a greater impact on the radial, axial and other forces generated when the pump is working. The load margin ensures smooth operation and long service life of the unit.
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