Mixed flow blower

Abstract

The invention relates to the field of ventilators, particularly to a mixed flow blower which comprises a blower main body, wherein the blower main body comprises an airflow passage extending in the axial direction; the airflow passage comprises an air inlet and an air outlet; an air inlet awl is arranged at the air inlet, and receives external environmental air; an impeller is arranged downstream on the air inlet awl, and comprises a wheel disc arranged in the center, a plurality of blades and a cone-shaped impeller cover; the wheel disc is connected with a motor used for driving the wheel disc to rotate; the blades extend outwards from the wheel disc in the radial direction to force air to flow in the direction from the air inlet to the air outlet; the cone-shaped impeller cover is fixedly connected with the blades and surrounds the blades. The invention provides the mixed flow blower which is more excellent in muting and has high efficiency, and compared with the traditional blower, the mixed flow blower is easier to mount and maintain.

Description

technical field [0001] The invention relates to the field of ventilation equipment, in particular to a mixed flow fan. Background technique [0002] Fans are generally classified according to the airflow direction of the impeller. The airflow direction of the axial flow fan is basically parallel to the axis of the fan. The airflow of the pipeline centrifugal fan enters from the axial direction of the impeller and is discharged from the radial direction of the impeller after changing the direction. Mixed flow fan It is a product between the axial flow fan and the centrifugal fan. It combines the best characteristics of the axial flow fan and the centrifugal fan. It has high conveying efficiency and a wide pressure range. The air of the mixed flow fan enters the impeller axially and passes through the The impeller blades are deflected at an oblique angle so that the gas exiting the impeller has both an axial and a radial component. [0003] The efficiency of the fan and the n...

AI Technical Summary

Problems solved by technology

At the same time, the fan should be easy to install and maintain. At present, some additional parts need to be used for the installation of the fan. For example, in order to reduce the vibration transmission during the operation of the fan, it is necessary to use angle steel rings and flexible pipe connectors; Internal components are often inconvenient to disassemble or replace parts from the inside of the fan due to space constraints, and some non-combined moving parts need to be reinstalled inside the fan, which is very difficult for a fan with a rather small internal space. difficulty

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