High temperature hot water pump

Abstract

The invention relates to a high temperature hot water pump, which comprises an upper end cover (1), an enclosure (3) with a radiating fin, a stator (5), a wind guiding sleeve (4), machine oil (5), a rotator (6), a lower bearing block (8), a mechanical seal (9), a fan (11), a pump (13) and a wire holder (14) with a seal, wherein the above components form a motor in which the machine oil rapidly circulates for heat exchange; the lower end of the rotator (6) is provided with the fan; the pump conveys temperature of the high temperature water to the motor, then the temperature in the motor is rapidly passed to the enclosure with the radiating fin and the lower bearing block through the machine oil; and the fan does work to rapidly bring the temperature of the enclosure with the radiating fin and the lower bearing block to the air so as to achieve the limited cooling effect; and meanwhile, the bearing always keeps excellent lubrication operation state, the motor efficiency of the pump is improved, and the service life of the pump is prolonged.

Description

technical field [0001] The invention relates to a high-temperature hot water pump, which belongs to the field of water supply and drainage. Background technique [0002] For a high temperature hot water pump, its cooling method and structure are very important. [0003] Conventional high temperature hot water pump, its structure includes standard air-cooled motor, pump cover, mechanical seal and water pump. [0004] During the operation of the high-temperature hot water pump, the heat inside the motor is completely taken away by the air flow of the upper fan of the motor to cool the heat sink on the outside of the motor shell, so as to achieve the purpose of cooling the motor. [0005] Disadvantages: When the water pump is working, the water it conveys is high-temperature water. Since the bearing under the motor is very close to the pump, the high temperature of the water is quickly transmitted to the bearing and the motor rotor through the motor shaft. Due to the structura...

AI Technical Summary

Problems solved by technology

[0005] Disadvantages: When the water pump is working, the water it conveys is high-temperature water. Since the bearing under the motor is very close to the pump, the high temperature of the water is quickly transmitted to the bearing and the motor rotor through the motor shaft. Due to the structural relationship of the standard motor, the lower bearing cannot be affected by the fan. If the temperature of the bearing increases sharply, the lubricating grease will be liquefied quickly and the bearing will be damaged due to dry operation. At the same time, the temperature of the rotor will rise rapidly, which will obviously reduce the efficiency of the motor, accelerate the aging of the insulation, and shorten the life of the motor.

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