Two-stage centrifugal turbine pump

Abstract

The invention provides a two-stage centrifugal turbine pump which comprises a pump body and a pump shaft, wherein the pump shaft is arranged in the pump body and can be rotatablely arranged on the pump body through a taper roller bearing and a guide bearing; the pump body comprises a water wheel cavity and a pump cavity, wherein the water wheel cavity is positioned above the pump cavity; the pump shaft is divided into a first end shaft and a second end shaft, wherein the first end shaft is positioned in the water wheel cavity, and the second end shaft is positioned in the pump cavity; the first end shaft is fixedly provided with two impellers in the same direction, a plurality of guide blades are arranged on the inner wall of the water wheel cavity, which corresponds to the impellers, and an axial line around the pump shaft is spirally and radially arranged; a first water inlet which is communicated with the water wheel cavity is formed above the pump body, and a first water outlet which is used for raising water is formed in the bottom of the water wheel cavity; the second end shaft is fixedly provided with a rotating wheel, a water guide seat is arranged on the pump body in a corresponding way corresponding to the rotating wheel, and the water guide seat is used for fixing the guide blades; and a second water inlet which is used for the water to flow into the pump cavity is formed in the pump body, and a second water outlet is formed in the bottom end of the pump body.

Description

technical field [0001] The invention relates to water lifting equipment, in particular to a water wheel pump, in particular to a double-stage centrifugal water wheel pump. Background technique [0002] The water turbine pump is an environmentally friendly and energy-saving water-lifting tool. It is a water-lifting machine composed of a water turbine and a water pump in a certain way. The water flow with a certain amount of energy drives the water turbine runner to use abundant water resources to lift water without power consumption. Oil-free, water wheel pumps are important development directions in people's agriculture, forestry, animal husbandry production and domestic water use. [0003] Traditional water turbine pumps generally use one impeller to rotate to drive the water upward. The driving force of one impeller is limited, so the head of the water turbine pump with this structure is limited. If a higher head is required, even if the speed of the impeller is increased....

AI Technical Summary

Problems solved by technology

[0003] Traditional water turbine pumps generally use one impeller to rotate to drive the water upward. The driving force of one impeller is limited, so the head of the water turbine pump with this structure is limited. If a higher head is required, even if the speed of the impeller is increased. To no avail, therefore, the water turbine pump of this structure is not suitable for the current market

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