Catalytic Oven Filter for Pyro-Cleaning Smoke Reduction
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Solution Overview
Problem
Cooking apparatuses generate unpleasant smells and inner wall contamination due to the formation of combustion oxide, oil mist, and water vapor during cooking, and the pyro-cleaning process produces noxious gases and smoke, causing inconvenience and health concerns.
Innovation Solution
A cooking apparatus equipped with a filter and metal foam that collects and decomposes cooking gases, featuring a corrugated metal sheet with a catalyst layer and a porous structure to effectively remove contaminants and odors, and a control unit for temperature regulation during the cleaning process.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If pyro-cleaning process is used to remove inner wall contamination, then cleaning effectiveness is improved, but generation of noxious gas and smoke increases
Solution Approach 1:
The patent applies catalytic conversion to transform the harmful pyro-cleaning process into a beneficial one. The catalyst layer on the metal foam converts noxious gases and smoke generated during high-temperature cleaning into harmless substances like carbon dioxide and water vapor, thereby maintaining cleaning effectiveness while eliminating harmful emissions
Solution Approach 2:
The metal foam with catalyst layer serves as an intermediary substance between the contaminants and the environment. It captures noxious gases and smoke through its porous structure and facilitates their decomposition into harmless products, acting as a mediator that prevents harmful substances from being released
2Reliability
If filter with metal foam and catalyst is used to collect cooking gas, then decomposition of cooking gas is improved, but device complexity increases
Solution Approach 1:
The metal foam filter structure serves multiple functions simultaneously: it acts as a physical barrier to trap particles, provides a large surface area for catalytic reactions, and facilitates gas flow. This multi-functionality allows the single component to handle both particle filtration and gas decomposition without requiring separate systems
Solution Approach 2:
The patent utilizes the porous structure of metal foam to achieve efficient cooking gas decomposition. The high surface area to volume ratio of the porous structure maximizes contact between cooking gases and the catalyst layer, enhancing decomposition efficiency while maintaining a compact filter design
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The solution significantly reduces the generation of noxious gases and smoke during cleaning, effectively decomposes cooking gases, and minimizes inner wall contamination, enhancing the cooking environment's safety and comfort.
Implementation Method 1
a metal foam configured to collect and decompose cooking gas
Implementation Method 2
a filter installed in at least one of the cooking chamber and the vent unit to collect gas or smoke generated in the cooking chamber
Data Source
AI summary
A cooking apparatus including a filter which may efficiently collect gas and smoke generated in a pyro-cleaning process, and a method of controlling the same. The cooking apparatus includes a main body having a cooking chamber formed therein, a vent unit configured to discharge gas in the cooking chamber to the outside of the main body, and a filter installed in at least one of the cooking chamber and the vent unit to collect gas or smoke generated in the cooking chamber. The filter includes a metal sheet.