Axial flow pump with adjustable water drainage angle

Abstract

The invention provides an axial flow pump with adjustable outlet angle. The present invention comprises a first pump casing and a second pump casing connected with the first pump casing. The bottom of the first pump casing is provided with a water inlet bell mouth, and the upper part is provided with a water outlet elbow. The second pump casing is provided with Above the first pump casing, a power device is arranged inside the second pump casing, the power device is connected to a drive shaft, and the drive shaft passes through the first pump casing and runs along the first pump casing The axial center of the shaft extends downward, the lower part of the drive shaft is provided with a guide vane and an impeller, and the outlet elbow is connected to the intermediate elbow through a flange, and the intermediate elbow adopts a 90° rounded bend A sealing ring is provided at the flange joint between the intermediate turning elbow and the water outlet elbow, and the intermediate turning elbow and the flange of the water outlet elbow are snap-fitted. The invention can adjust the water outlet angle according to the requirements of the water outlet delivery angle, so as to ensure the stability of the water delivery pressure.

Description

Technical field: [0001] The invention relates to an axial flow pump with adjustable outlet angle, which belongs to the technical field of mechanical equipment. Background technique: [0002] The impeller of the axial flow pump is equipped with 2 to 7 blades and rotates in the circular tubular pump casing. The pump casing above the impeller is equipped with fixed guide vanes to eliminate the rotational motion of the liquid and turn it into axial motion, and convert the kinetic energy of the rotational motion into pressure energy. Axial flow pumps are usually single-stage, and a few are made into two-stage. The flow range is very large, ranging from 1.8 to 3.6 million cubic meters per hour; the lift is generally below 20 meters. The axial flow pump is generally vertical, the impeller is submerged under the water, and there are also horizontal or inclined axial flow pumps. When the installation position of the impeller of the small axial flow pump is higher than the water su...

AI Technical Summary

Problems solved by technology

[0003] The existing axial flow pump generally adjusts the water outlet angle by connecting the hose, which is easy to bend arbitrarily, but once the connecting hose bends, it will cause poor water delivery and affect the working stability

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