Range hood with function of recognizing harmful gas and particulate matter in oil fume

A harmful gas and particulate matter technology, which is applied in the direction of oil fume removal, particle suspension analysis, household appliances, etc., can solve problems such as the inability to automatically identify the concentration of polycyclic aromatic hydrocarbons and particulate matter, and limit the intelligent development of range hoods.

Active Publication Date: 2019-06-14
FOSHAN VIOMI ELECTRICAL TECH +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The range hood in the prior art cannot automatically identify the concentration of polycyclic aromatic hydrocarbons and particulat

Method used

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  • Range hood with function of recognizing harmful gas and particulate matter in oil fume
  • Range hood with function of recognizing harmful gas and particulate matter in oil fume
  • Range hood with function of recognizing harmful gas and particulate matter in oil fume

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0076] A range hood with the function of identifying harmful gases and particles in the range hood, such as figure 1 As shown, a smoke machine main body and a harmful gas and particle detection device are provided, and the harmful gas and particle detection device is electrically connected to the smoke machine main body.

[0077] The harmful gas and particulate matter 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 concentration of particulate matter in the oil fume in the cooking area.

[0078] The harmful gas and particle detection device is equipped with a temperature sensing module for detecting the temperature in the cooking area, a PM2.5 sensor for detecting the concentration of particles with an equivalent diameter of A PM10 sensor with an equivalent diameter less than or equal to the concentration of particulate matter of 10 microns and a calc...

Embodiment 2

[0087] A range hood with the function of identifying harmful gases and particles in the lampblack, other features are the same as in Embodiment 1, the difference is that the calculation formula of the calculation module is formula (I),

[0088] C 多环芳烃 =0.05κ+0.002(C PM2.5 +C PM10 )+0.33κ(C PM2.5 +C PM10 )+475.1 ... formula (I).

[0089] 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, C PM2.5 is the output data of the PM2.5 sensor, C PM10 It is the output data of the PM10 sensor.

[0090] When κ∈(0℃, 200℃), (C PM2.5 +C PM10 )∈(0,3000μg / m 3 ), 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 .

[0091] When κ∈(200℃, 240℃), (C PM2.5 +C PM10 )∈(3000μg / m 3 , 5000μg / m 3 ), 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 . where C (2-3) is the concentration of bicyclic PAHs and tricyclic PAHs, C (4) is the concentration of tetracyclic PAHs, C (5-6...

Embodiment 3

[0095] A range hood with the function of identifying harmful gases and particles in the lampblack, other features are the same as in Embodiment 1, the difference is that the calculation formula of the calculation module is formula (II),

[0096] C 多环芳烃 =0.05κ 0.98 +0.002(C PM2.5 +C PM10 ) 1.05 +0.33κ(C PM2.5 +C PM10 )+469.5 ... formula (II).

[0097] 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, C PM2.5 is the output data of the PM2.5 sensor, C PM10 It is the output data of the PM10 sensor.

[0098] When κ∈(0℃, 200℃), (C PM2.5 +C PM10 )∈(0,3000μg / m 3 ), 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 .

[0099] When κ∈(200℃, 240℃), (C PM2.5 +C PM10 )∈(3000μg / m 3 , 5000μg / m 3 ), 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 .

[0100] where C (2-3) is the concentration of bicyclic PAHs and tricyclic PAHs, C (4) is the concentration of ...

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Abstract

The invention provides a range hood with a function of recognizing harmful gas and particulate matter in oil fume. A range hood body and a harmful gas and particulate matter detection device are arranged, and the harmful gas and particulate matter detection device is electrically connected with the range hood body. The harmful gas and particulate matter detection device calculates according to thetemperature in a detected cooking area and the concentration of the particulate matter in the oil fume in the cooking area to obtain the current polycyclic aromatic hydrocarbon concentration in the cooking area. According to the range hood with the function of recognizing the harmful gas and the particulate matter in the oil fume, the temperature, PM2.5 concentration, PM10 concentration and the polycyclic aromatic hydrocarbon concentration in the cooking area can be detected, polycyclic aromatic hydrocarbon environment grading can be further carried out on the polycyclic aromatic hydrocarbonconcentration of a current environment, and air quality index assessment is carried out and health levels are obtained; and meanwhile, the range hood is further provided with a wind speed control module, a prompting module and a fire force control module, the current environmental health levels automatically adjust wind speeds and fire force of external cookers, so that the polycyclic aromatic hydrocarbon concentration in the current environment is reduced, and meanwhile, a user is reminded to pay attention to the protection.

Description

technical field [0001] The invention relates to the field of range hoods, in particular to a range hood with the function of identifying harmful gases and particles 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. There are many harmful substances in the fume gas, such as polycyclic aromatic hydrocarbons and various particulate matter. Among them, quite a few polycyclic aromatic hydrocarbons are carcinogenic, such as benzo[α]pyrene, and particulate matter has varying degrees of impact on the human respiratory system. The range hood in the prior art cannot automatically identify the concentration of polycyclic aromatic hydrocarbons and particulate matter in the cooking fume in the current cooking environment, which greatly limits the intelligent dev...

Claims

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Application Information

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IPC IPC(8): F24C15/20G01N15/06G01N33/00
Inventor 陈小平司徒伟贤林勇进李翔
Owner FOSHAN VIOMI ELECTRICAL TECH
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