Gas Water Heater Burner Control for Stable Outlet Temperature
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Solution Overview
Problem
Gas water heating devices experience frequent segment switching due to changes in water demand or use environment, leading to significant fluctuations in outgoing water temperature, affecting user experience.
Innovation Solution
A control method for gas water heating devices that determines whether the current load is within a predetermined common load range and adjusts burner combinations accordingly, allowing for power regulation via a gas proportional valve without segment switching, thereby maintaining consistent temperature.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If segmented burning control is used to adapt to different water demands, then the device can handle varying load requirements, but frequent segment switching causes large fluctuations in outgoing water temperature
Solution Approach 1:
The system pre-calculates and stores optimal segment combinations and gas proportional valve opening degrees for different load ranges before actual operation. When a water heating request comes, the controller directly queries the pre-stored correspondence relationship based on the current load, avoiding real-time segment switching and temperature fluctuations.
Solution Approach 2:
The system dynamically adjusts the gas proportional valve opening degree within each load range based on real-time load changes, while maintaining segment stability. This dynamic adjustment of valve opening allows continuous temperature control without segment switching, resolving the contradiction between adaptability and temperature stability.
2Ease of operation
If segment switching is performed frequently to meet changing water demands, then the device can respond to user needs, but the constant temperature experience is degraded
Solution Approach 1:
The system pre-establishes a correspondence relationship between load ranges, segment combinations, and gas proportional valve opening degrees. This preliminary preparation allows the system to respond to water demand changes by selecting pre-optimized configurations rather than switching segments in real-time, maintaining constant temperature experience.
Solution Approach 2:
The system continuously monitors the current load and compares it with the load range to determine the appropriate segment combination and valve opening degree. This feedback mechanism ensures the system responds accurately to water demand changes while maintaining stable temperature through controlled valve adjustment rather than segment switching.
3Adaptability or versatility
If multiple segment combinations are used to cover different load ranges, then the device can handle various power requirements, but the control system complexity increases
Solution Approach 1:
The system pre-calculates and stores the optimal segment combinations and valve opening degrees for each load range in a correspondence relationship table. This preliminary computation simplifies the control logic during operation, as the controller only needs to query the pre-stored data based on current load rather than performing complex real-time optimization.
Solution Approach 2:
The system divides the overall load range into multiple sub-ranges and establishes corresponding relationships for each sub-range. This parameter division approach allows the control system to handle various power requirements by selecting appropriate pre-defined configurations, reducing control complexity while maintaining comprehensive adaptability.
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
This method reduces temperature fluctuations and improves user experience by ensuring consistent water temperature through efficient power management and burner control.
Implementation Method 1
a burning device which includes at least two groups of burners
Data Source
AI summary
The invention relates to the technical field of a water heating device, and particularly discloses a control method of a gas water heating device and a gas water heating device. The gas water heating device comprises a burning device which includes at least two groups of burners; the control method of the gas water heating device comprises: determining whether the currently required load is within a common load range obtained in advance or not in the case that a first preset condition is met; if it is so, controlling a burner or burner combination corresponding to a common segment to conduct burning; the power range corresponding to the common segment comprises the common load range. With the present scheme, the constant-temperature effect of the water heater can be improved, and user experience is improved.