Top surrounding type extractor hood

A range hood, top-side technology, which is applied in the field of surrounding top-side range hoods, can solve the problems of only reaching 95%, general range hood effect, and inability to absorb range hood, so as to improve the range hood rate, The effect of high oil fume suction efficiency and comfortable cooking environment

Active Publication Date: 2015-04-22
NINGBO UNIVERSITY OF TECHNOLOGY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the top-side range hood uses a fume collection hood, and the fume collection hood is mainly divided into three types: shallow hood, deep hood and cabinet hood, and the oil fume extraction rate of the shallow hood is only 40%. About 50%-60% of the oil fume extraction rate of the deep hood type is only 50%-60%, and the oil fume extraction rate of the cabinet hood type can only reach 95%.
Therefore, although the top-side range hood has the advantages of both the top-side air intake type range hood and the side-side air intake type range hood, the effect of the range hood is still average, and the user uses the top-side type range hood when cooking. The hood still has some oily fumes that cannot be sucked out, and cannot provide users with a comfortable cooking environment

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0036] Take the aluminum alloy material according to the composition and mass percentage in Example 1 in Table 1 to make the oil fume separation plate blank. After heat treatment, the blank is first heated to 450°C, kept for 150 minutes, and then immersed in liquid nitrogen for 50 minutes for cryogenic treatment. After the cryogenic treatment, aging treatment was carried out at a temperature of 120° C. for 10 h. After conventional processing, the final oil fume separation board is made.

Embodiment 2

[0038] Take the aluminum alloy material according to the composition and mass percentage in Example 2 in Table 1 to make the oil fume separation plate blank. After heat treatment, the blank is first heated to 460°C, kept for 130 minutes, and then immersed in liquid nitrogen for 40 minutes for cryogenic treatment. After the cryogenic treatment, aging treatment was carried out at a temperature of 130° C. for 8 hours. After conventional processing, the final oil fume separation board is made.

Embodiment 3

[0040] Take the aluminum alloy material according to the composition and its mass percentage in Example 3 in Table 1 to make the oil fume separation plate blank. After heat treatment, the blank is first heated to 480°C, kept for 120 minutes, and then immersed in liquid nitrogen for 30 minutes for cryogenic treatment. After the cryogenic treatment, aging treatment was carried out at a temperature of 140° C. for 5 hours. After conventional processing, the final oil fume separation board is made.

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PUM

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Abstract

The invention relates to an extractor hood, in particular to a top surrounding type extractor hood. The top surrounding type extractor hood mainly comprises a shell, multiple lampblack separating plates and multiple fans, wherein the shell comprises a discharge flue, two baffles, two back plates and two side walls, the two back plates are perpendicularly arranged outside two opposite walls of the discharge flue respectively, the baffles are arranged on the back plates, the end, adjacent to the discharge flue, of each baffle is in tangential connection with the corresponding back plate, an inward concave arc is formed in each baffle towards the back side of the corresponding back plate in the opening direction of the discharge flue, each side wall is perpendicularly arranged at the end, away from the discharge flue, of the corresponding back plate and points at the opening side of the discharge flue, the lampblack separating plates are arranged on the opening portion of the discharge flue on the inner side of the shell, on the inner side of each back plate and on the inner side of each side wall respectively, the fans are arranged on the inner side of the discharge flue and the inner side of each side wall, and the lampblack separating plates are made of an aluminum alloy material. The top surrounding type extractor hood is high in lampblack extraction rate and good in air purifying effect.

Description

technical field [0001] The invention relates to a range hood, in particular to a top-around type range hood. Background technique [0002] The range hood is a kitchen appliance that purifies the kitchen environment. It is installed on the upper part of the range hood. After the range hood is powered on, it drives the motor to make the wind wheel rotate at a high speed, forming a negative pressure area in a certain space above the range hood, sucking the indoor fume gas into the range hood, and the fume gas passes through it. The oil screen is filtered for the first oil fume separation, and then enters the inside of the hood air duct, and the oil fume gas is separated for the second time through the rotation of the impeller. The oil fume in the air cabinet is subjected to centrifugal force, and the oil mist condenses into oil droplets , collected into the oil cup through the oil circuit, and the purified flue gas is finally discharged outside along a fixed path, reducing pol...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F24C15/20
CPCF24C15/20
Inventor 杨郭磊周佳纳邱敏胡如夫
Owner NINGBO UNIVERSITY OF TECHNOLOGY
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