Novel multistage booster pump

Abstract

The invention discloses a novel multistage booster pump. The novel multistage booster pump comprises a pump head, a pump body and pressurizing components, the pump head and the pump body are an integrated structure, a water outlet is arranged above the pump body, a bottom part of the pump body is fixedly connected with a water feeding shell, a sealing flange is fixedly arranged above the pump head, a motor is fixedly mounted on the sealing flange through a screw, a coupler is arranged on an output shaft of the motor, a rotating shaft is fixedly connected on the coupler, the bottom part of thepump body is provided with a bearing, and the rotating shaft penetrates through the bottom part of the pump head downwards and stretches to the bottom part of the pump body and cooperates with an inner ring of the bearing; a part of surface, in the pump body, of the rotating shaft is sleeved with a spacer bush; and the pressurizing components include a plurality of pressurizing components, each pressurizing component comprises a vane wheel fixedly mounted on the spacer bush, a guide vane and a fluid director fixedly mounted on a side wall in the pump body. The novel multistage booster pump isrational in structure, excellent in sealing effect, very quiet and highly efficient in work, and has long service life.

Description

technical field [0001] The invention relates to the field of booster pumps, in particular to a novel multistage booster pump. Background technique [0002] Multi-stage booster pump is a general-purpose hydraulic machinery with a wide range of applications. It has the advantages of compact structure, small size, light weight, low noise, and remarkable energy-saving effect. The demand for stage booster pumps is also increasing. Its working principle is: when the motor drives the impeller on the shaft to rotate at high speed, the liquid filled in the impeller will flow from the center of the impeller along the flow between the blades under the action of centrifugal force. Because the liquid is affected by the blades, the pressure and speed increase at the same time, and it is led to the next-stage impeller through the flow channel of the deflector. This is the principle, and it flows through all the impellers and impellers one by one. The deflector further increases the pressu...

AI Technical Summary

Problems solved by technology

[0003] The vertical multistage centrifugal pump in the prior art generally has its bottom soaked in the liquid for a long time, and the seal of its mechanical seal structure will be worn after working for a long time, resulting in a decrease in its sealing performance. , the sealing and energy saving effect is getting worse and worse, and the working efficiency is getting lower and lower, which will affect the service life of the centrifugal pump, and even cause the liquid in the pump body to enter the motor part and affect the normal operation of the motor. The safety of use is not strong, and it cannot be well satisfied. people's needs

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