Compound type cooking fume purifier with coupling function

Abstract

The invention provides a compound type cooking fume purifier with a coupling function. The compound type cooking fume purifier comprises a shell, wherein the shell is provided with an air inlet and an air outlet; a gas channel is formed between the air inlet and the air outlet; the gas channel is internally provided with a static electricity capturing unit and a catalytic absorption unit in sequence from the air inlet to the air outlet; the static electricity capturing unit comprises an ionization region and a capturing region; the catalytic absorption unit comprises a catalyst and a carrier for loading the catalyst; the catalyst comprises an active component and an auxiliary component; the active component is an oxide of a transition metal element; the auxiliary component is Al2O3 or TiO2. The cooking fume purifier is simple in structure, low in manufacturing cost, high in purification efficiency, compact in structure and long in service life and does not need to be frequently maintained; the catalytic absorption unit can be used for purifying upper-state cooking fume molecules stimulated by the static electricity capturing unit under a room temperature.

Description

technical field [0001] The invention relates to the field of oil fume purifiers, in particular to a composite type oil fume purifier with a coupling function. Background technique [0002] With the progress of society, people's awareness of environmental protection and health is increasing, and the impact of pollution generated in the kitchen cooking process on the environment and health has attracted more and more attention. Kitchen cooking pollution mainly comes from gas combustion emissions and cooking fumes, in which the main pollutants emitted by gas combustion are CO, NOx, SO 2 and particulate matter, etc., while cooking fumes include edible oil and food volatiles at high temperatures and their condensate aerosols, water vapor, and a mixture of indoor dusty gases. The components contained are quite complex, including saturated fatty acids and unsaturated fatty acids. , plus a variety of short-chain aldehydes, ketones, acids, alcohols and other irritating taste product...

AI Technical Summary

Problems solved by technology

These methods of removing oily fume and peculiar smell generally have the problem of poor effect. Among them, the adsorption and deodorization of activated carbon is easy to be saturated, and bacteria and mold may also multiply and stink on the activated carbon, thereby causing secondary pollution; The health of the photocatalyst is harmful; the photocatalyst needs to increase the ultraviolet lamp, which consumes more power, and the ultraviolet light will accelerate the aging of the plastic. ), platinum (Pt), silver (Ag) and other precious metals generally have the problems of poor deodorization effect, easy deterioration, and easy saturation

Moreover, in the existing catalyst method, the catalyst generally acts at a relatively high temperature. For example, the Chinese invention patent "A Catalyst for Purifying Oil Fume and Its Preparation and Application" with the authorized announcement number CN1140343C discloses a catalyst. The temperature is 200-500°C, and the temperature of the oil fume is generally tens of degrees, and it will be further reduced during the purification process, and it will reach about room temperature.

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