Range hood

Abstract

The invention discloses a range hood. The range hood comprises a case. An air duct allowing smoke to pass through is formed in the case. A second high-voltage static lampblack removing device, a draught fan, a first high-voltage static lampblack removing device and an oil collecting box are mounted in the air duct in sequence from top to bottom. The first high-voltage static lampblack removing device comprises a set of positive plate electrode and negative plate electrode, wherein the positive plate electrode and the negative plate electrode are matched with each other and arranged oppositely. The draught fan is mounted in the air duct by means of a draught fan box, and an oil collection belt is arranged on the inner wall of the draught fan box. The second high-voltage static lampblack removing device comprises at least one positive plate electrode and at least one negative plate electrode, and each positive plate electrode and the corresponding negative plate electrode opposite to the positive plate electrode form an electric field. The oil collecting box is located below the bottommost negative plate electrode of the first high-voltage static lampblack removing device. The lampblack removing rate of the range hood can reach 98.5%, and the range hood is convenient to clean and maintain.

Description

technical field [0001] The invention relates to kitchen appliances, in particular to a range hood. Background technique [0002] The smog marked by PM2.5 has reached the point where people in the country turn pale, and air pollution has become a hot topic of public concern. However, the smog in the atmospheric environment is obvious, but the contribution of kitchen fume to the smog has been ignored by the public. A 2012 study by Wang Yuesi of the Institute of Atmospheric Physics of the Chinese Academy of Sciences found that in the summer of 2012, 15% to 20% of PM2.5 particle pollution in central Beijing came from kitchen exhaust. This makes kitchen exhaust the third largest source of air pollution after vehicle exhaust and pollutants wafted in from surrounding areas. "Catering Fume Emission Standards" stipulates that the maximum allowable emission concentration is 2.0mg / m3. The results of the experiment found that all kinds of cooking methods basically exceeded the maximu...

AI Technical Summary

Problems solved by technology

However, in actual use, it is found that a large amount of oil fume is concentrated and intercepted on the high-voltage electrostatic oil fume removal electrode plate. If the big problem of cleaning and maintenance of the original patented product is not solved, the actual application value of the original patent will not be high.

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