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Range hood with function of identifying harmful gas in oil smoke

A technology for harmful gases and range hoods, which can be used in the fields of oil fume removal, character and pattern recognition, computer parts, etc., which can solve the problems of limiting the intelligent development of range hoods and failing to automatically identify the concentration of polycyclic aromatic hydrocarbons.

Active Publication Date: 2019-04-16
FOSHAN VIOMI ELECTRICAL TECH +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The range hoods of the prior art cannot automatically identify the concentration of polycyclic aromatic hydrocarbons in the cooking fume in the current cooking environment, which greatly limits the intelligent development of the range hood

Method used

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  • Range hood with function of identifying harmful gas in oil smoke
  • Range hood with function of identifying harmful gas in oil smoke
  • Range hood with function of identifying harmful gas in oil smoke

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0048] A range hood capable of identifying harmful gases in the range hood, such as figure 1 As shown in the figure, a smoke machine main body and a harmful gas detection device are provided, and the harmful gas detection device is electrically connected to the smoke machine main body.

[0049] The harmful gas detection device calculates the current concentration of polycyclic aromatic hydrocarbons in the cooking area according to the detected temperature in the cooking area and the size of the oil fume in the cooking area.

[0050] The harmful gas detection device is equipped with a temperature sensing module for detecting the temperature in the cooking area, an image acquisition module for analyzing the cooking area fume image and obtaining the size of the cooking fume in real time, and a calculation for calculating the concentration of polycyclic aromatic hydrocarbons in the current cooking area The module, the temperature sensing module and the image acquisition module are...

Embodiment 2

[0102] A range hood capable of identifying harmful gases in the range hood, other features are the same as in Embodiment 1, the difference is that the calculation formula of the calculation module is formula (I),

[0103] C 多环芳烃 =0.05κ+0.05λ+0.33κλ+475.1 Formula (I),

[0104] where C 多环芳烃 is the total concentration of PAH gas in the cooking area, κ is the output data of the temperature sensing module, and λ is the output data of the image acquisition module.

[0105] When κ∈(0℃, 200℃), λ∈(0,300), C (2-3) =70%C 多环芳烃 ,C (4) = 20%C 多环芳烃 ,C (5-6) = 10%C 多环芳烃 .

[0106] When κ∈(200℃, 240℃), λ∈(300,500), C (2-3) = 60%C 多环芳烃 ,C (4) = 25%C 多环芳烃 ,C (5-6) = 15%C 多环芳烃 .

[0107] where C (2-3) is the concentration of bicyclic PAHs and tricyclic PAHs, C (4) is the concentration of tetracyclic PAHs, C (5-6) is the concentration of five-ring PAHs and six-ring PAHs.

[0108] For example, when κ is 100°C and λ is 100, directly substitute the data values ​​of κ and λ into the...

Embodiment 3

[0111] A range hood capable of identifying harmful gases in the range hood, other features are the same as in Embodiment 1, the difference is that the calculation formula of the calculation module is formula (II),

[0112] C 多环芳烃 =0.05κ 0.98 +0.05λ 1.05 +0.33κλ+469.5 Formula (II).

[0113] where C 多环芳烃 is the total concentration of PAH gas in the cooking area, κ is the output data of the temperature sensing module, and λ is the output data of the image acquisition module.

[0114] When κ∈(0℃, 200℃), λ∈(0,300), C (2-3) =70%C 多环芳烃 ,C (4) = 20%C 多环芳烃 ,C (5-6) = 10% C polycyclic aromatic hydrocarbons.

[0115] When κ∈(200℃, 240℃), λ∈(300,500), C (2-3) = 60%C 多环芳烃 ,C (4) = 25%C 多环芳烃 ,C (5-6) = 15%C 多环芳烃 .

[0116] where C (2-3) is the concentration of bicyclic PAHs and tricyclic PAHs, C (4) is the concentration of tetracyclic PAHs, C (5-6) is the concentration of five-ring PAHs and six-ring PAHs.

[0117] For example, when κ is 100°C and λ is 100, directly subst...

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Abstract

The invention discloses a range hood with a function of identifying harmful gas in oil smoke. The range hood is provided with a range hood main body and a harmful gas detection device, the harmful gasdetection device is electrically connected with the range hood main body. The harmful gas detection device is used for obtaining the current polycyclic aromatic hydrocarbon concentration of a cookingarea according to the detected temperature in the cooking area and the size of the oil smoke of the cooking area through calculation; a temperature sensing module of the range hood detects the temperature in the cooking area, an image acquisition module is used for analyzing a cooking area oil smoke image and acquiring the oil smoke generation conditions obtained in real time, and then the concentration of the polycyclic aromatic hydrocarbon in the current environment is calculated through a calculation module; furthermore, the range hood also can be used for carrying out environmental healthgrade division on the concentration of the polycyclic aromatic hydrocarbon in the current environment, meanwhile, the range hood is further provided with a wind speed control module, a prompt moduleand a firepower control module so that the wind speed and the firepower of an external stove can be automatically adjusted according to the current environmental health grade, then the concentration of the polycyclic aromatic hydrocarbon in the current environment is reduced, and meanwhile, a user is reminded to pay attention to protection.

Description

technical field [0001] The invention relates to the field of range hoods, in particular to a range hood capable of identifying harmful gases in the range hood. Background technique [0002] In modern life, many families produce a lot of cooking fume. Studies have shown that cooking fume has complex components, has certain inhalation toxicity, immunotoxicity and mutagenicity, and has certain hazards to human health. Oily fumes include polycyclic aromatic hydrocarbons, and quite a few of them are carcinogenic, such as benzo[α]pyrene. The range hood in the prior art cannot automatically identify the concentration of polycyclic aromatic hydrocarbons in the range hood in the current cooking environment, which greatly limits the intelligent development of the range hood. [0003] Therefore, aiming at the deficiencies of the prior art, it is necessary to provide a range hood capable of identifying harmful gases in the lampblack to solve the deficiencies of the prior art. Conten...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F24C15/20G01D21/02G06K9/00G06T7/254
CPCG06T7/254F24C15/2021G01D21/02G06T2207/30232G06T2207/20224G06V20/52
Inventor 陈小平林勇进司徒伟贤
Owner FOSHAN VIOMI ELECTRICAL TECH
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