Energy-saving, emission-reduction and windproof axial-flow induced-draft fan

Abstract

The invention discloses an energy-saving, emission-reduction and windproof axial-flow induced-draft fan, which comprises a dynamic wind bowl, a motor, a stopper, a motor-casing base, a thermal-isolating mat, a fixed screw, an emission-reduction cover, a motor rotor shaft, upper and lower seal rings, an induced impeller, a fixed seat and the like, wherein the upper part of the motor rotor shaft is provided with the dynamic wind bowl, and the lower end of the motor rotor shaft is connected with the induced impeller. The induced-draft fan in the invention has the advantages that in the weather having force-1 wind or above, the motor is not required to operate, and the induced impeller is driven to rotate by the rotation of the dynamic wind bowl, so that the smoke dust in a cooking stove can be emitted to the air; Duo to the action of the emission-reduction cover, the draught smoke dust particles are blocked in a gas flue, and the gas can be emitted from all sides so as to prevent the motor from being corroded by overheating gas; and the motor-casing base also has the function of not being interfered by external down-draught wind. The induced-draft fan in the invention can be widely applied to the smoke outlets of urban and rural houses with coal stoves.

Description

technical field [0001] The invention relates to an air-inducing device, in particular to an energy-saving, emission-reducing, and wind-proof axial-flow induced fan. Background technique [0002] At present, its structure of generally used induced draft fan is made up of rainproof cover, AC motor (comprising shell, rotor, coil, upper and lower bearing), impeller, motor bracket, fixed seat and so on. When the induced draft fan is working, the motor drives the impeller to rotate, which increases the pressure difference between the stove and the smoke exhaust port, so that the smoke in the stove can be smoothly discharged into the atmosphere through the smoke exhaust port. This induced draft fan has been widely used on the exhaust port of the stove with burning coal. However, this kind of induced draft fan consumes electric energy, and the rotor shaft of the motor drives the impeller to rotate to discharge the smoke and dust directly upwards. The overheated gas directly corrode...

AI Technical Summary

Problems solved by technology

However, this kind of induced draft fan consumes electric energy, and the rotor shaft of the motor drives the impeller to rotate to discharge the smoke and dust directly upwards. The overheated gas directly corrodes the motor and reduces the service life of the motor.

Pollution of the atmosphere, which is not environmentally friendly and unhygienic

This kind of induced draft fan is easily disturbed by the external backflow wind, which will cause the smoke and dust to flow back, and the gas backflow will be ejected from the stove, and it is also easy to cause fire accidents.

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