a centrifugal blower

Abstract

The invention discloses a centrifugal blower with efficient aerodynamic efficiency. Symmetrical curved surface main guide blade segments and symmetrical curved surface secondary guide blade segments are arranged in an air intake flow channel of an air intake shell of the centrifugal blower with the efficient aerodynamic efficiency; the symmetrical curved surface main guide blade segments are closeto an air inlet relative to the symmetrical curved surface secondary guide blade segments; guide blade sides of the two sides of the symmetrical curved surface main guide blade segments and the symmetrical curved surface secondary guide blade segments respectively correspond to the shapes of the front inner shell wall and rear inner shell wall of the air intake shell and extend; each blade of animpeller comprises a forward type blade segment located at one end close to an axial air inlet, and a backward type blade segment located at one end close to an radial air outlet; and the forward typeblade segment is connected to the backward type blade segment by a radial blade segment. The structures of the air intake shell and the impeller blades are specially designed, so that the centrifugalblower has multiple technical effects of high intake efficiency, high aerodynamic efficiency, high aerodynamic load and low aerodynamic noise; and finally the centrifugal blower with efficient aerodynamic efficiency is obtained.

Description

technical field [0001] The invention belongs to the field of centrifugal blower product manufacturing, and in particular relates to a centrifugal blower. Background technique [0002] The working principle of the centrifugal blower is mainly to use a number of rotating impellers to do work on the gas, increase the kinetic energy of the gas, and then increase the pressure of the gas through the centrifugal action and the expansion process to achieve a certain air volume and pressure, and then achieve a large flow of high-pressure air supply. technical effect. Centrifugal blowers are widely used in sewage treatment, desulfurization of power plants and other industrial fields because of their good effect of large flow and high pressure air supply. [0003] The centrifugal blower mainly includes core components such as an air intake housing with an air inlet, a rotary drive unit, a gas compression unit composed of a rotating impeller, and an exhaust housing with an exhaust port...

AI Technical Summary

Problems solved by technology

In order to meet the performance requirements of its application in various fields, people usually design the impeller blades into three types: backward, forward and radial. Among them, the bending direction of the backward blade is the same as the trajectory of the gas. High efficiency and low noise, but low aerodynamic load; the bending direction of the forward blade is opposite to the trajectory of the gas, and the aerodynamic load is high, but because the gas is forcibly changed by the blade, the aerodynamic efficiency is low and the noise is large; The bending direction of the impeller blades is perpendicular to the trajectory of the gas, and its related performance is between the backward blades and the forward blades; it can be seen from the above that the existing impeller blades have their own advantages and disadvantages, and they cannot have high performance at the same time. Aerodynamic efficiency and performance at high aerodynamic loads

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