Dust, paint mist and lampblack exhaust gas purification exhaust fan

Abstract

The invention relates to the technical field of exhaust fans, in particular to a dust, paint mist and lampblack exhaust gas purification exhaust fan. The dust, paint mist and lampblack exhaust gas purification exhaust fan comprises a shell, an air inlet pipe, a motor and a wind wheel. The air inlet pipe is in an inner cavity of the shell, the wind wheel is arranged in the inner cavity of the shelland the air outlet end of the wind wheel is close to the back side wall of the inner cavity of the shell, an air inlet of the air inlet pipe penetrates out of the top of the shell upward and communicates to outer side, an air outlet of the air inlet pipe bends backward and stretches to the air inlet end of the wind wheel, the air outlet of the air inlet pipe communicates to the air inlet end of the wind wheel, the motor is fixed on the back end surface of the shell, an output shaft of the motor stretches into the inner cavity of the shell forward and is inserted into the axis of the wind wheel, an exhaust outlet communicating to the inner wall of the shell is formed in the front end of the shell, and the exhaust outlet and the wind wheel are coaxial. The dust, paint mist and lampblack exhaust gas purification exhaust fan is uniform to stress and does not generate a tangential force during exhausting and discharging, so that shake and vibration are prevented in the tangential direction. The dust, paint mist and lampblack exhaust gas purification exhaust fan has the characteristics of being low in noise, low in energy consumption, stable to operate, long in service life and the like.

Description

Technical field: [0001] The invention relates to the technical field of exhaust fans, in particular to an exhaust fan for purifying dust, paint mist and oil fume exhaust gas. Background technique: [0002] The exhaust fan is also called a side stream blower, a centrifugal blower, and a small blower. It is a general-purpose device that can be used for suction and exhaust, and is usually used for suction of mechanical equipment. [0003] Although the use of exhaust fans is very common at present, the current exhaust fans generally inhale from the center of the wind wheel and exhaust along the tangential direction of the outer contour of the wind wheel. The motor and the wind wheel will be damaged by the tangential force generated during the exhaust Vibration and vibration occur in the tangential direction, which causes the exhaust fan not only to generate high noise during operation, but also to have problems such as high energy consumption, unstable operation, and short servi...

AI Technical Summary

Problems solved by technology

[0003] Although the use of exhaust fans is very common at present, the current exhaust fans generally inhale from the center of the wind wheel and exhaust along the tangential direction of the outer contour of the wind wheel. The motor and the wind wheel will be damaged by the tangential force generated during the exhaust Vibration and vibration occur in the tangential direction, which causes the exhaust fan not only to generate high noise during operation, but also to have problems such as high energy consumption, unstable operation, and short service life.

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