Cyclone for separating oil smoke in smoke ventilator

Abstract

The invention discloses a cyclone for separating oil smoke in a smoke ventilator. The cyclone comprises a main body. The main body is a hollow tubular structure which has an enclosed top end and has radial dimensions gradually decreased from top to bottom. A bottom opening of the main body is a bottom liquid outlet of the cyclone. A side wall of the upper part of the main body is provided with an air inlet tangent to the side wall. The cyclone also comprises a central gas-guide tube which is inserted into the center of the top of the main body and is arranged coaxially with the main body. A top opening of the central gas-guide tube is an air outlet of the cyclone. The cyclone is characterized in that the bottom end of the central gas-guide tube is arranged lower than the bottom of the air inlet, the area of the air inlet is represented by S1, the area of the main body at the largest caliber is represented by S2 and a S1/S2 ratio is greater than or equal to 0.05 and less than or equal to 0.3. Cyclone for separating oil smoke in the smoke ventilator has a simple structure, can be processed conveniently, has enough air input and satisfies smoke ventilator use. The cyclone can be processed to form different structures and is arranged in different ways so that the cyclone is suitable for being used in smoke ventilators having different shaped and different purposes. The cyclone has very good oil smoke filtration purification effects.

Description

technical field [0001] The invention relates to a cyclone substructure, in particular to a cyclone substructure for separating oil fume from a range hood. Background technique [0002] As a kitchen appliance, the range hood has been widely used by most families. Existing range hoods are of a great variety and have different structures, and can be generally divided into European style and Chinese style, or can be divided into top air intake, side air intake, and bottom air intake according to the air intake mode. No matter what type of range hood it is, it usually includes a housing with an air inlet below the housing and an air outlet above the housing. A fan volute is installed inside the housing, and an impeller drive is installed in the volute. The motor that turns the impeller. The lower part of the housing is usually provided with a fume collecting hood, and an air inlet is provided on the fume collecting hood, in order to prevent the oil fume from entering into the r...

AI Technical Summary

Problems solved by technology

Although the cleaning cycle of the above first structure is longer, the oil fume is still easy to remain on the filter screen, resulting in an increase in wind resistance and a decrease in the air volume of the fan, which in turn affects the oil absorption performance of the range hood

For the second structure, although the cleaning of the oil fume filter itself has been well solved, the volute inside the range hood and the fan are still prone to residual oil fume, which will cause oil fume to accumulate on the volute and fan over time

If it is not cleaned in time, the operation of the fan of the range hood will not be as flexible as before, which will affect the air volume of the range hood, and the residue of oil fume will also cause a lot of noise, which will greatly affect the user's kitchen environment. The oil fume in the range hood is another very heavy work, which causes great inconvenience to the users.

In addition, these existing range hoods still contain a large amount of oil fume through the gas that enters the public flue through its air outlet and then is discharged into the atmosphere. The fume is exhausted into the atmosphere, which also pollutes the environment and affects people's health

[0005] In order to solve the above-mentioned problem of residual oil fume, there are also negative ion oil fume removal devices, electrostatic oil fume removal devices, etc. ZL201130443069.3 discloses the "electrostatic oil fume removal device for range hoods". These are all additional devices for removing oil fumes to filter and purify the oil fumes discharged from the range hood to the atmosphere. Although some effects are better, it is inevitable to increase Reduced the cost of the range hood and the volume of the range hood

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