Dual-Outlet Burner Layout for Higher Gas Cooker Combustion Efficiency
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Solution Overview
Problem
The combustion efficiency of gas cookers is limited by the reliance on primary and secondary air flow rates affected by structural and operational conditions, with secondary air supplementation being passive and demanding precise component sizing.
Innovation Solution
A burner design with distinct flame outlets for ejecting blown air and induced air, ensuring sufficient oxygen for full combustion, and utilizing excess oxygen from blown air to enhance combustion efficiency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of energy
If secondary air supplementation depends on buoyancy and entrainment effects, then the gas cooker can maintain simple structure, but the thermal efficiency is limited due to passive air supply and high demands on component sizes
Solution Approach 1:
The burner is divided into multiple flame outlets with different functions: a first flame outlet for gas and primary air mixture, and a second flame outlet for secondary air supplementation. This segmentation allows each outlet to be optimized for its specific function, improving overall combustion efficiency while maintaining a relatively simple structure.
Solution Approach 2:
The burner design pre-mixes primary air with gas at the first flame outlet before combustion, and positions the second flame outlet to provide secondary air at the optimal location. This preliminary arrangement of air-gas mixing and positioning eliminates the need for complex active control mechanisms, achieving improved thermal efficiency through pre-configured flow paths.
2Loss of energy
If primary air flow rate is affected by structures and operation conditions, then the burner can adapt to different conditions, but the combustion efficiency is limited due to insufficient oxygen supply
Solution Approach 1:
Different flame outlets are provided with different air-gas mixture qualities: the first flame outlet receives primary air for initial combustion, while the second flame outlet receives additional secondary air. This local differentiation ensures that each combustion zone receives the appropriate oxygen quantity, improving overall combustion efficiency without requiring uniform high oxygen supply throughout the system.
Solution Approach 2:
The second flame outlet acts as an intermediary mechanism that supplements oxygen to the combustion process. By positioning this outlet to provide secondary air at the optimal location, the system bridges the gap between primary air mixing and complete combustion, ensuring sufficient oxygen supply without requiring excessive primary air flow rates that would complicate the structure.
3Quantity of substance
If component sizes are increased to improve secondary air supplementation, then sufficient oxygen can be provided, but the device complexity and space requirements increase
Solution Approach 1:
Instead of increasing component sizes in a single dimension, the design adds a spatial dimension by positioning the second flame outlet at a specific location relative to the first flame outlet. This dimensional arrangement allows secondary air to be supplied effectively without requiring larger component sizes, as the spatial positioning optimizes air flow paths and mixing efficiency.
Solution Approach 2:
The air supply system is segmented into primary air (at the first flame outlet) and secondary air (at the second flame outlet). This segmentation allows each air supply channel to be optimized independently for its specific function, enabling sufficient total oxygen supply without requiring any single component to be excessively large. Each outlet handles a portion of the total air requirement, distributing the size requirements across multiple smaller components.
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 burner design achieves high combustion efficiency by actively supplementing oxygen, stabilizing flames, and improving thermal efficiency of gas cookers.
Implementation Method 1
Combustion of burners of gas cookers requires participation of primary air and secondary air
Implementation Method 2
Generally, the primary air is mixed with a gas through an entrainment effect
Implementation Method 3
Supplement of the secondary air depends on buoyancy and entrainment effects
Data Source
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AI summary
The invention discloses a burner, a gas cooker, and an integrated electrical appliance. The burner includes a first flame outlet and a second flame outlet. The first flame outlet is located farther from a center of the burner than the second flame outlet. One of the first flame outlet and the second flame outlet is adapted for ejecting of a gas and blown air, and the other one of the first flame outlet and the second flame outlet is adapted for ejecting of the gas and induced air. In this technical solution, one of the first flame outlet and the second flame outlet may be used for ejecting of the gas and the blown air. The gas ejected from the other one of the first flame outlet and the second flame outlet can be fully burned under effects of the induced air and the excess oxygen provided by the blown air. Such an arrangement is beneficial to improving the thermal efficiency of the gas cooker.