Oil fume separation device and range hood using the oil fume separation device

Abstract

The invention discloses an oil fume separation device, which includes a rotating net disk, the rotating net disk includes a rotating shaft and blades connected to the peripheral wall of the rotating shaft and radiating radially outward, and the feature is that the cross section of the blade is streamlined , the cross-section is a cross-section parallel to the axis of the rotating network disk. Also disclosed is a range hood applied with the above-mentioned rotating network disk. Compared with the prior art, the present invention has the advantage that the vortex can be eliminated by using the blades with a streamlined section.

Description

technical field [0001] The invention relates to an oil fume purification device, in particular to an oil fume separation device and a range hood using the oil fume separation device. Background technique [0002] Range hoods have become one of the indispensable kitchen appliances in modern families. The range hood uses the principle of fluid dynamics to work, sucks and exhausts the range hood through a centrifugal fan installed inside the range hood, and uses a filter to filter some grease particles. The centrifugal fan includes a volute, an impeller installed in the volute and a motor that drives the impeller to rotate. When the impeller rotates, a negative pressure suction is generated in the center of the fan, and the oil fume under the range hood is sucked into the fan, and after being accelerated by the fan, it is collected by the volute and guided out of the room. [0003] In order to improve the oil fume separation efficiency, the existing range hoods usually have a...

AI Technical Summary

Problems solved by technology

[0004] There are two main types of traditional rotary nets, one is that the fan is placed on the top and placed at the back end of the oil screen, and the other is coupled with the impeller, and it is also divided into two types: plane and three-dimensional. The above technologies are mainly as follows Disadvantages: ①In order to improve the separation efficiency of the rotating rotary screen without affecting the air volume, the front rotary screen is realized by a high-speed method, and the speed is as high as 1200-1500r / min, and when this speed is reached, it will have a bad impact on the noise of the range hood , the noise increases by at least 3dB; ②The dynamic separation device installed on the impeller, the separated grease is thrown off into the volute, causing the pollution of the volute. As an important part of supercharging, the volute is changed. It will directly affect the air performance of the fan; ③Ultra-high speed dynamic separation adopts the principle of collision separation, which will break some large particles of oil droplets, resulting in an increase of small particles in the discharge, which does not reduce the impact of oil fume on the environment very well Influence; ④The cross-section of the conventional blade is circular, and the blade of this cross-section will generate more eddy currents at the rear end of the blade during the rotation process, resulting in energy loss, which is also not conducive to the improvement of filtration capacity

[0007] There are many problems with the existing electrostatic technology: ①The service life of the existing electrostatic technology is short, and it usually needs to be removed and cleaned after about three months of use; ②The existing electrostatic technology is bulky; ③The existing electrostatic technology will appear during operation The crackling sound is the same as the electric mosquito swatter, the user experience is extremely poor, and the user is also worried during use

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