A combined blowing and suction range hood

Abstract

The invention discloses a combined blowing and drawing kitchen ventilator, which comprises a kitchen ventilator shell and a cooking bench air supplement device. An inner shell is arranged in the kitchen ventilator shell at an interval; a smoke collecting cavity is arranged on an air drawing port of the inner shell; an oil filter screen is arranged in the inner shell on the top part of the smoke collecting cavity; the bottom face and the horizontal face of an oil collecting groove of the oil filter screen are arranged in an inclined way; an oil cup is slidably inserted into one groove on the side face of the smoke collecting cavity; an air outlet is formed in the top part of the kitchen ventilator shell; a smoke exhaust fan is arranged in the kitchen ventilator shell; and air outlet of the smoke exhaust fan communicates with an inlet of an air outlet pipeline penetrating through the air outlet; the cooking bench air supplement device comprises a still pressure box for supporting a gas stove; air curtain vertical pipes are fixed to the left side and the right side of the still pressure box along a vertical direction; the two air curtain vertical pipes respectively communicate with the still pressure box; and a plurality of side clearance air outlets are formed on the top parts of the air curtain vertical pipes. The device can be used for quickly discharging pollutants to outdoor.

Description

technical field [0001] The invention relates to a range hood, in particular to a combined blow-suction type range hood. Background technique [0002] With the development of urbanization and people's pursuit of a good cooking environment, range hoods are generally installed in family kitchens. Due to the operating space requirements, there is an installation height of 65-80 cm between the range hood and the gas cooktop. The range hood has a certain range of capture energy efficiency area, generally within 40-45 cm below the range hood. It makes the range hood unable to fully inhale the oily fume and other harmful gases produced by cooking and fuel combustion, especially the small splashed particles. In addition, due to the country's requirements for building energy conservation, the airtightness of the kitchen envelope is getting better and better. On the other hand, cookers generally close the kitchen door due to cooking habits and preventing oil fume from spreading to o...

AI Technical Summary

Problems solved by technology

However, there are many disadvantages in use. The air curtain is not considered to be equipped with the air outlet of the range hood. The vertical air curtain impacts upwards to the outer edge of the smoke collection chamber, and the airflow mixed with oil fume pollutants diverges and overflows, causing secondary pollution.

On the other hand, if the air is supplemented vertically in front of the stove, the untreated hot air in summer and cold air in winter will affect the thermal comfort of the cooker.

At the same time, the fully enclosed annular airflow will greatly affect the oxygen supplement during the gas combustion process, causing incomplete combustion. On the one hand, it will affect the requirements for the calorific value in the cooking process, and on the other hand, it will induce a large amount of CO, which will affect the indoor environment. Air Quality and Human Health

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