Novel energy-saving self-sucking pump

Abstract

The invention relates to the technical field of water pumps, in particular to a novel energy-saving self-sucking pump which is characterized by comprising a pump body 1, an impeller 2, an impeller nut 3, a key 4, a shaft 5, a mechanical seal 6, a volute chamber cover 7, a pump cover 8, an outlet flange 9, an air discharging valve 10, a water blocking ring 11, a motor 12, a water discharging valve 13 and a water inlet 14. Because water is sucked from the single side of the impeller 2 of a traditional self-sucking pump, and the generated axial centrifugal tension is larger and is markedly larger if the traditional self-sucking pump is in the model with larger caliber, larger flow and higher lift, the pump shaft of the motor 12 is rapidly damaged, and the service life is shorter. Because the self-sucking pump belongs to a single-sucking structure, the pump is always in a pressurized state in the operation of the water pump, and the high the lift is, the higher the pressure is, the water is quite easily leaked to cause the water seepage and the damage of the motor. Differing from the design that the inlet of a traditional pump is positioned on the lateral surface, the water inlet 14 of the novel energy-saving self-sucking pump is drilled on the front surface of the pump, thereby the problems of water leakage and negative pressure are well solved, the work efficiency is improved, and the service life is prolonged. The novel energy-saving self-sucking pump can run at a low water level and has low water-sucking water level, high lift and high efficiency and saves energy; a front-surface water-sucking structure is adopted, the motor 12 has no axial tension, the radial force is lightened and balanced, the pump efficiency is improved, and the problems of water leakage and negative pressure are well solved; the service life of the pump is greatly prolonged; and the pump has more reasonable and compact structure and attractive appearance, and safer and more reliable in running.

Description

technical field [0001] The invention relates to the technical field of water pumps, in particular to a novel energy-saving self-priming pump. technical background [0002] The closest similar product of the present invention is a self-priming pump. Because it belongs to the unilateral suction structure, it has the following disadvantages: [0003] 1. Because water is absorbed from one side of the impeller, the resulting axial centrifugal force is relatively large. The larger the diameter, the larger the flow rate, and the higher the head type, the larger the size will be, which will cause the pump shaft of the motor to be damaged quickly. , the service life is short. [0004] 2. Due to the unilateral suction structure, the pump is always under pressure during operation. The higher the lift, the higher the pressure, and it is easy to leak (the higher the lift, the easier it is to leak), which causes the motor to run water, damage. [0005] 3. It has an upper outlet struct...

AI Technical Summary

Problems solved by technology

This invention is different from the design of the traditional pump where the inlet is on the side, but the water inlet 14 is opened on the front of the pump, thus solving the problems of water leakage and negative pressure, thereby improving the working efficiency and prolonging the service life

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