FAN Russian patent published in 2021 - IPC F24F7/02 F04D25/08 

FIELD: gas industry.

SUBSTANCE: invention relates to devices used in gas purification and aspiration systems for transporting air, aerosols and gases in various chemical and technological processes, and can be used in chemical laboratories, on galvanic lines, at non-ferrous metallurgy enterprises and at other enterprises where there are environments that cause increased corrosion. To achieve the result, a fan is proposed consisting of a fan case, an impeller mounted on the shaft of an electric motor, and the fan housing and the impeller are made of sheet thermoplastics, and the fan inlet and outlet directions are located in the same plane, while the fan housing is made in the form of a regular polygon.

EFFECT: increase in the service life of the device when working in aggressive environments while maintaining the mechanical resistance of the device, the acquisition by the device of the property of immunity to aggressive environments, no susceptibility to corrosion; the ability to move gases of elevated temperatures (up to 100°С), the creation of a fan with a universal body without division into left and right and with the possibility of installation in the ventilation network without reference to the direction of movement of the fan impeller; creating the possibility of installing the fan housing at different angles, which greatly simplifies the installation of the device in the ventilation network; reducing noise; reducing the weight of the fan; improving aerodynamic characteristics while maintaining the possibility of using the fan in any chemical laboratories, metallurgical enterprises, galvanic industries.

7 cl, 3 dwg