Electromagnetic Gas Flow Valve for Stable Cooker Flame Control
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Solution Overview
Problem
Current gas cookers face issues with unstable gas flow due to pressure fluctuations and limited adjustable flame grades, failing to meet user requirements for precise control.
Innovation Solution
A gas flow control device with a control valve system comprising a valve body, valve core, reset device, and electromagnetic converting device, which uses a control module to supply periodic or pulse-type current to the electromagnetic converting device, allowing for stable gas flow and adjustable flame grades through varying bore diameters of control valves.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If a simple valve structure is used, then device complexity is reduced, but gas flow stability deteriorates due to inability to compensate for pressure fluctuations
Solution Approach 1:
The patent employs a feedback mechanism where the unstable gas flow signal is fed back to the control valve, which automatically adjusts its opening degree to compensate for flow fluctuations. The control module receives the flow signal and modulates the valve opening accordingly, creating a closed-loop system that stabilizes gas flow without requiring complex external stabilization equipment.
Solution Approach 2:
The control valve is designed with dynamic adjustment capability, allowing its opening degree to change continuously based on real-time gas flow conditions. The valve core can move between fully closed and fully open positions with any intermediate opening degree, enabling dynamic compensation for pressure and flow fluctuations rather than relying on fixed opening positions.
2Device complexity
If only a few fixed valve openings are provided, then device complexity is reduced, but adaptability deteriorates as user requirements for multiple flame grades cannot be met
Solution Approach 1:
The control valve transitions from static fixed openings to dynamic continuous adjustment. The valve core can be positioned at any opening degree between fully closed and fully open, allowing infinite flame grade adjustments. This dynamic mechanism is controlled by the control module which receives user input and positions the valve accordingly, providing versatile flame control without requiring multiple discrete valve configurations.
Solution Approach 2:
The system changes the parameter of valve opening degree from discrete fixed values to continuous variable values. By controlling the opening degree as a continuous parameter rather than fixed steps, the system enables smooth adjustment across multiple flame grades. The control module modulates the opening degree parameter in response to user requirements, providing flexible adaptability.
3Adaptability or versatility
If intermittent gas supply is used, then adaptability for different operation modes is improved, but gas flow stability deteriorates due to pulsating flow to the burner
Solution Approach 1:
The system implements periodic action through intermittent gas supply for different operation modes (e.g., preheating, cooking), while simultaneously using feedback control to smooth the actual flow to the burner. The control valve opens and closes periodically according to operational needs, but the feedback mechanism ensures that any pulsations are compensated, maintaining stable flow during the actual combustion process.
Solution Approach 2:
The feedback control mechanism detects gas flow fluctuations caused by intermittent supply and automatically adjusts the valve opening to compensate. When the gas supply is interrupted or reduced for mode changes, the feedback system senses the flow change and modulates the valve to maintain stable flow to the burner, thus reconciling intermittent operation with flow stability.
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 provides a stable gas flow to the burner and allows for multiple adjustable flame grades, enabling fine control of gas flow, thus addressing the limitations of existing gas cookers.
Implementation Method 1
the electromagnetic converting device is used for generating magnetism after receiving the supplied power, drawing the valve core to move
Implementation Method 2
the valve core again butts against the inner wall of the valve body under the action of the reset device
Data Source
Figure 1~3
Figure 4~6
AI summary
The present invention provides a novel gas flow control device for a gas cooker, including a fuel gas inlet and a fuel gas outlet, and also including a control module and at least one control valve; the control module is used for opening the control valve; when the control valve is opened, gas sequentially flows through the fuel gas inlet and the control valve, and then flows toward the fuel gas outlet, and the control valve alternately opens and closes an airflow passage by which the gas flows through the control valve. In this way, even if the gas flow is unstable, by means of the technical solution of the present invention, the gas flow finally flowing to the burner is relatively stable.