A volute guide vane

Abstract

The invention discloses a volute type guide vane. The volute type guide vane mainly comprises a guide valve casing, a middle plate, a water baffle plate, a volute chamber and a water outlet chamber. The guide vane is of a tubular structure, the middle plate is arranged in the guide vane casing to divide the same into the water outlet chamber and the volute chamber, the middle plate is provided with a hole in the middle, the water outlet chamber is provided with a water inlet on the guide vane casing, the volute chamber is provided with a water outlet on the guide vane, the water baffle plate is arranged in the water outlet chamber and extends from the water inlet to the center of the water outlet chamber, and the inner wall of the volute chamber is an arc-shaped surface or a spiral curved surface. By the volute type guide vane, efficiency of a clean water pump and a sewage pump is improved, the sewage and waste pump can be of a multi-stage pump structure on the premise of guaranteeing solid particle passing capability, and lift of the sewage and waste pump is improved greatly so as to realize substantial breakthrough.

Description

technical field [0001] The invention relates to the field of pumps. Background technique [0002] The submersible electric pump is an organic combination of the pump and the motor. It is mainly divided into two types according to the transported medium: the submersible electric pump for pumping sewage and sewage containing solid particles and the small submersible electric pump for pumping clean water (commonly known as clean water pump) . Since the guide vanes used in the prior art mostly consist of a plurality of blades extending from the middle hole to the outer edge, and such a setting will make the cross-sectional area of ​​the water flow channel smaller, the resistance of the water flow through it will be greater, and the efficiency will be lower. , which seriously restricts the passing ability of solid particles. [0003] Since the sewage and sewage submersible electric pump requires the examination of the passing capacity of solid particles, guide vanes with low pa...

AI Technical Summary

Problems solved by technology

The main reason is that the solid particle passing capacity of the guide vane used is low, so that the sewage submersible electric pump cannot realize the multi-stage pump structure, and the lift is naturally low

[0004] In well submersible electric pumps, centrifugal pumps, chemical pumps and other pumps, due to the same reason, the efficiency of the pumps is low and the passing capacity of solid particles is weak. 40-50 meters of sewage and sewage centrifugal pumps, sewage and sewage chemical pumps and other pumps

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