Ventilation wall blocking type range hood

Abstract

The invention belongs to kitchen ware in daily necessities, and particularly relates to a ventilation wall blocking type range hood. An air blower is mounted on a shell of the range hood, a plurality of closely-arranged ventilation wall pipes are fixedly arranged on the periphery in the shell of the range hood, the inner diameter of each ventilation wall pipe is determined according to the required exhaust air rate, and the length of each ventilation wall pipe is determined according to the height of the shell of the range hood and the distance between the the range hood and a cooking bench. The powerful ventilation wall pipes which blow air downwards enable one ventilation wall to be formed on the periphery of the range hood playing a blocking role like a wall, a relatively closed space is formed below the range hood, the width of an exhaust air face and the strength of air can be set according to required conditions, the air blowing power of the air blower is increased, the strength of the air is increased, smoke can be prevented from overflowing to the space outside the ventilation wall, the smoke suction effect is obviously improved, operation is convenient and flexible, vision is not affected, and the operation space is not affected.

Description

technical field [0001] The invention belongs to kitchen utensils in daily necessities, in particular to a wind wall barrier type range hood. Background technique [0002] At present, the mainstream of the exhaust air volume of the range hood is larger at 15m 3 / min, up to 22m 3 / min, due to the limited setting of the smoke exhaust caliber of the building flue, it is very difficult to continue to increase the smoke exhaust volume. Even if the current marked smoke exhaust volume is in a specific situation, it is still a problem whether the design air volume can be reached under the resistance of the flue duct , and the range hood with a large exhaust air volume is also louder. The effective suction radius of most range hoods on the market is 400 mm. Generally, the range hood is 700 mm away from the stove top, and the wok on the stove top is 150 mm. The height of the higher stove together with the wok is less than 200 mm. mm, so at least 100mm above the frying pan has no suc...

AI Technical Summary

Problems solved by technology

[0002] At present, the mainstream of the exhaust air volume of the range hood is larger at 15m 3 / min, up to 22m 3 / min, due to the limited setting of the smoke exhaust caliber of the building flue, it is very difficult to continue to increase the smoke exhaust volume. Even if the current marked smoke exhaust volume is in a specific situation, it is still a problem whether the design air volume can be reached under the resistance of the flue duct , and the range hood with large exhaust air volume is also noisy

The effective suction radius of most range hoods on the market is 400 mm. Generally, the range hood is 700 mm away from the stove top, and the wok on the stove top is 150 mm. The height of the higher stove together with the wok is less than 200 mm. mm, so there is no suction effect at least 100 mm above the frying pan. The oil fume is naturally raised and then sucked away. Due to the overflow of cooking oil fume, it will cause a lot of residue

According to the overall size of the general double-burner range hood is 500*900 mm, calculated according to the distance from the cooker to the top of 550 mm, the space between the cooker and the range hood is 500*900*550 mm=0.237m 3 , calculated according to the 500mm distance from the top of the stove, the space is 500*900*500mm=0.225m 3 , according to the exhaust air volume of the range hood 15m 3 / min, calculated rear exhaust air volume 0.25m 3 / sec, in theory, if there is a "closed space" under the range hood, the smoking effect of spike can be achieved, but the effect is not ideal because the surrounding is an open space

The smoking port of the side suction range hood has poor suction effect on the opposite side

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