Fairing device for range hood and range hood having the same

Abstract

The invention discloses a rectifying device for an extractor hood and the extractor hood with the rectifying device. The rectifying device comprises an exhaust fume collecting hood and a rectifying component. A flow guide face is arranged in the exhaust fume collecting hood, and the rectifying component is provided with an upper surface and a lower surface; the lower surface protrudes downwards relative to the upper surface, and a primary flue gas acceleration channel is formed between the lower surface and the flow guide face; and the flue gas circulation cross area of the primary flue gas acceleration channel is in the decrease trend in the flue gas flowing direction. According to the rectifying device, the lower surface of the rectifying component protrudes downwards, the primary flue gas acceleration channel is formed between the lower surface of the rectifying component and the flow guide face, and the flue gas circulation cross area of the primary flue gas acceleration channel is arranged to be in the decrease trend in the flue gas flowing direction, so that flue gas flowing can be accelerated to a certain degree, and the lampblack sucking and removing effect is improved.

Description

technical field [0001] The invention relates to the technical field of range hoods, in particular to a rectification device for a range hood and a range hood with the rectification device. Background technique [0002] In order to improve the air intake effect of the range hood, a smoke guide plate will be added at the air intake end of the range hood. Some of the range hoods in the related art have a smoke guide plate with a flat structure in the smoke collecting hood, but there is a problem that the smoke cannot be cleaned. For this reason, some range hoods set the smoke deflector as a concave structure with a high middle and a low periphery, but when in use, the smoke tends to stay at the entrance of the fume passage, resulting in poor smoke removal effect. Contents of the invention [0003] The present invention aims to solve one of the above-mentioned technical problems in the prior art at least to a certain extent. Therefore, an object of the present invention is t...

AI Technical Summary

Problems solved by technology

In the range hoods in the related art, some smoke guide plates with a flat structure are arranged in the smoke collecting hood, but there is a problem that the smoke cannot be cleaned.

For this reason, some range hoods set the smoke deflector as a concave structure with a high center and a low periphery, but when in use, the smoke tends to stay at the entrance of the fume passage, resulting in poor smoke removal effect

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