Dual Ring Burner Output Adjustment via Cycle Switching
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Solution Overview
Problem
Existing multi-circuit burners require complex and costly control components to adjust heating output, which is inefficient and costly, and existing solutions do not simplify the process effectively.
Innovation Solution
The method involves setting the gas throughput to the internal burner in a cycle switching operation to reach low setting output, omitting the need for continuous actuators, and using a simple cycle valve for adjustment, while the external burner is only switched on when the heating output exceeds the low setting power, allowing for continuous adjustment through the external burner's actuator.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If complex control components are used to continuously adjust gas throughput to both burners, then heating output adjustment precision is improved, but device complexity and cost increase
Solution Approach 1:
The heating output adjustment range is segmented into two distinct ranges: a lower range (0 to first setting power) handled by cycle switching of the internal burner, and an upper range (first setting power to maximum power) handled by continuous adjustment of the external burner. This segmentation allows each burner to use simpler control mechanisms appropriate for its specific range, avoiding the need for complex continuous control components across the entire range.
Solution Approach 2:
In the lower heating output range, the internal burner operates in cycle switching mode rather than continuous adjustment mode. The burner is periodically switched on and off to achieve the desired heating output level, which simplifies the control mechanism while maintaining sufficient adjustment precision for low-power settings.
2Ease of operation
If continuous actuators are used in the internal burner gas line, then heating output adjustment smoothness is improved, but space requirements and component costs increase
Solution Approach 1:
The internal burner uses periodic cycle switching instead of continuous actuator control. A simple cycle valve replaces complex continuous actuators, significantly reducing the space required in the gas hob while achieving sufficient heating output adjustment in the lower power range through timed on/off cycles.
3Device complexity
If the external burner is used for all heating output levels, then component simplicity is improved, but heating efficiency and adjustment quality deteriorate
Solution Approach 1:
Different burners are assigned to different heating output ranges based on their operational characteristics. The internal burner handles the lower power range where cycle switching provides sufficient control, while the external burner handles the upper power range requiring continuous adjustment. This local optimization ensures each burner operates in its most effective range, maintaining high adjustment quality across the full power spectrum.
Data Source
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AI summary
The invention relates to a method for adjusting the heating output (H) of a multi-circuit burner (1), in particular a dual-circuit burner, with an external burner (3) and an internal burner (5), in which, until a low-level output (Hk) is reached, the gas flow (ṁa) to the external burner (3) is interrupted, and only a gas flow (ṁi) to the internal burner (5) is maintained, wherein, between the low-level output (Hk) and a maximum output (Hmax), the gas flow (ṁa) to the external burner (3) is continuously adjusted while the internal burner (5) is operated at the low-level output (Hk). According to the invention, when adjusting the heating output (H) until the low-level output (Hk) is reached, the gas flow (ṁi) to the internal burner (5) is adjusted in a pulsed switching operation.