Entrainment internally-circulating cooker hood with air curtain

Abstract

The invention uses a fan with a cyclone cooking fume entraining means to separate from the cooking fume, so that on the one hand sending air forms an air curtain to isolate air and heat, and on the other hand sending air to a circulation groove makes the airflow rotate to form low-pressure core entrainment of the cooking fume. In the process of removing cooking fume, the centrifugal force produced by the rotary airflow makes the oil stain be separated and be collected in the vertical fume-removing pipeline, and meanwhile the exhausted airflow enters into a return sleeve to remove smoke dust and a peculiar smell through a filter screen and adsorption material and then return to the air inlet of the far for blowing-in again of the fan.

Description

Technical field

[0001] The invention relates to a pneumatic dust removal device, in particular to an electric range hood for removing oil fume in a household kitchen environment. Background technique

[0002] Electric range hoods have entered the ranks of household appliances for half a century, but the fans of the existing range hoods are obstructed in the exhaust pipes, and the efficiency of extracting range hoods is very low. The manufacturers only have to increase the energy consumption of the fans. To compensate, its input power has reached more than 200 watts, making the exhaust air volume and air pressure greatly exceed the requirements of the "GB / T17713-1999 range hood" national standard. For this reason, we proposed a swirling range hood and declared an invention patent "Double swirling three-hole range hood" (application number: 200510065824.8). The whirlpool type range hood uses the rotating airflow to suck the range hood, and the fan is isolated from the range hood. T...

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