Whirlwind strong-suction no-clean smoke exhausting mechanism

Abstract

The invention discloses a whirlwind strong-suction no-clean smoke exhausting mechanism. The whirlwind strong-suction no-clean smoke exhausting mechanism comprises an air collecting mask and an exhausting mechanism, wherein the exhausting mechanism is fixed to the top of the air collecting mask and comprises a first gap and a second gap; an air retaining mechanism is arranged on the air collectingmask; air enters the first gap through a fan connected with the air exhausting mechanism so as to form whirlwind; negative pressure is formed at the center of the whirlwind; oily smoke is carried in the center of the whirlwind and is exhausted with air; a part of clean air overflows via the second gap and flows along the inner wall of the air collecting mask to form an air curtain for isolating the oily smoke, and the oily smoke is prevented from having contact with the inner wall of the air collecting mask; the air of the air curtain is returned to an air sucking opening region through the air retaining mechanism, is sucked into the whirlwind center with the oily smoke and is exhausted outwards. The whirlwind strong-suction no-clean smoke exhausting mechanism disclosed by the invention needs no oil and smoke separation, the oil smoke is completely exhausted; the oily smoke does not need to pass through a motor and the fan, so the motor and the fan are prevented from being adhered withoil stain, and subsequent clearing work is avoided; a direct exhaust way is adopted, so the suction force of a range hood is greatly increased, and the inner wall of the exhausting mechanism is a plane or a curved surface, so the exhausting mechanism is quite easy to clear in later period.

Description

technical field [0001] The invention belongs to the technical field of exhaust, in particular to the technical field of exhaust fume of range hoods, in particular to a vortex wind large suction no-cleaning fume extraction mechanism for range hoods. Background technique [0002] Range hoods bring convenience to residents’ lives, but at the same time cause troubles to the oil pollution problem of range hoods. Most of the current range hoods set the fan above the oil fume inlet, and the oil fume passes through the oil fume inlet, fan, and oil fume in turn. The outlet enters the exhaust pipe, and then discharges into the flue. On the one hand, this kind of range hood has limited suction. When the exhaust port is far away from the stove, the oil fume exhaust rate is usually very low. On the other hand, when exhausting oil fume with this structure, the oil fume must pass through the fan motor and fan blades to reach the exhaust pipe, so the oil fume is easy to adhere to the motor ...

AI Technical Summary

Problems solved by technology

[0009] The purpose of the present invention is to overcome the defect that the existing range hood has low suction power, and the inner wall of the motor, wind blade and mask is easily adhered by oil dirt, and provides a vortex wind large suction no-clean range fume mechanism, which can change the oil fume The discharge path enables the oil fume to be discharged smoothly without passing through the motor and fan blades. At the same time, the range hood of the present invention has a strong suction force, which can expand the suction distance for the oil fume, and uses the air curtain technology to avoid the exhaustion of the oil fume mask. Adhesive oil stains on the inner wall

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