Containerized-type energy-saving low-noise water-cooling centrifugal pump

Abstract

The invention discloses a containerized-type energy-saving low-noise water-cooling centrifugal pump, which comprises a pump body and a motor, wherein the motor is arranged inside the pump body and is used for supplying power; the pump body comprises an outer cylinder, an upper bearing, a lower bearing, a motor stator and rotor component, an upper cavity, a lower cavity, a cooling cavity and an impeller, wherein the upper bearing is connected with the lower bearing, the motor stator and rotor component is arranged in the outer cylinder, the impeller is arranged at the bottom of the pump, the upper bearing and the lower bearing are positioned at the middle part in the pump body and coaxially arranged, and an inner connecting pipe is arranged in the cooling cavity; the upper cavity is communicated with the cooling cavity through a hole at one side of the upper cavity, a hole at the other side of the upper cavity is communicated with the upper end of the inner connecting pipe, the lower end of the inner connecting pipe is connected with a return pipe, the return pipe is communicated with a pump inlet, and the pump inlet is communicated to a cavity body where the impeller is arranged; and the lower cavity is communicated with the cooling cavity through a hole at the right side of the lower cavity. By adopting a brand new water circulating cooling system and removing a previous fan structure, the containerized-type energy-saving low-noise water-cooling centrifugal pump is energy-saving and environment-friendly; the motor noise is greatly reduced; and because the pump body is coaxial with the motor, the vibration is reduced.

Description

Technical field [0001] The invention relates to a water pump, in particular to a containerized energy-saving low-noise water-cooled centrifugal pump. Background technique [0002] At present, the feedwater booster pumps used in life on the market generally have problems such as excessive noise, large vibration, and low efficiency, which affect people's living environment and pose a threat to people's health. [0003] The long-term operation of the water pump in low frequency conditions will produce electromagnetic noise, the lack of good lubrication of the bearing and the easy loss of grease will cause the disadvantages of excessive noise and excessive vibration. The peak period of user water consumption is relatively short, accounting for only 20%-25% of the water use time. The pumps are running under low-frequency conditions during the rest of the time. At this time, the pumps are working at low efficiency. Long-term operation will cause the motor to easily heat up. Bearing grea...

AI Technical Summary

Problems solved by technology

[0004] The motor shaft and pump shaft of most water-cooled centrifugal pumps are not concentric and the coaxiality is not high, so the bearings and mechanical seals are easily damaged and vibrations are caused, which is a common disadvantage of centrifugal pumps.

There is also a phenomenon that the motor casing and the cooling water jacket are not tightly sealed, resulting in water leakage from the motor and damage to the motor due to water leakage from the cooling water jacket

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