Gas Valve Control Unit with Power-Line Parameter Communication
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing heating systems face challenges in accurately communicating gas valve calibration data to the burner controller, leading to potential operational compromises due to manual input errors or incorrect valve assignments, and current solutions involving expensive components with narrow tolerance bands are not feasible for the average consumer market.
Innovation Solution
A gas valve control unit is integrated with the gas valve, utilizing existing power lines to transmit parameter data, including calibration data, directly to the gas burner controller, eliminating the need for manual entry and ensuring correct data communication through a modulated signal, thereby simplifying installation and ensuring accurate operation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If manual data entry methods are used to communicate calibration data from gas valve to burner controller, then installation flexibility is maintained, but errors are introduced due to manual inputting errors or incorrect valve assignments
Solution Approach 1:
The gas valve automatically transmits its own calibration data to the burner controller through the power lines, eliminating the need for manual data entry by the installer. The valve serves itself by autonomously communicating its identification and calibration parameters to the controller, ensuring accuracy without requiring human intervention that could introduce errors.
Solution Approach 2:
The power lines that already exist between the gas valve and burner controller serve as an intermediary communication channel. By using the existing power lines to carry both power and data signals, the system avoids the need for separate communication wiring or manual data transfer mechanisms, thereby maintaining reliability while simplifying installation.
2Manufacturing precision
If components with narrow tolerance bands are used to avoid calibration, then manufacturing precision is improved, but system cost increases significantly
Solution Approach 1:
Instead of using components with narrow tolerance bands, the system changes the approach by implementing automated calibration data communication. The gas valve's actual parameters and calibration data are transmitted to the controller, allowing the system to accommodate standard tolerance bands while maintaining operational accuracy through proper calibration data matching.
Solution Approach 2:
The system establishes a feedback loop where the gas valve communicates its calibration data to the burner controller, which then uses this information to correctly operate the valve. This feedback mechanism allows the use of standard components with broader tolerance bands, as the precise calibration data compensates for manufacturing variations, thereby reducing system cost.
3Extent of automation
If QR code or printed label methods are used for data communication, then automated data transfer is enabled, but errors occur due to incorrect labeling or QR code assignment
Solution Approach 1:
The gas valve autonomously transmits its own calibration data directly to the burner controller through the power lines, eliminating the need for external labels or QR codes. This self-service approach ensures that the data originates from the valve itself rather than being manually attached, preventing mismatches between valves and their calibration data.
Solution Approach 2:
The patent replaces the mechanical/physical labeling system (printed labels or QR codes attached to the valve) with an electronic communication system. By substituting the physical label attachment mechanism with electronic data transmission through power lines, the system eliminates errors associated with label placement, reading, and matching while maintaining automated data transfer.
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 solution enhances the reliability and safety of heating systems by ensuring correct gas valve parameter communication, simplifying installation, and avoiding costly components, while allowing for verification of the correct gas valve installation and future upgrades, such as hydrogen compatibility.
Implementation Method 1
transmit the parameter data to the gas burner controller via said one or more power lines between the gas valve and the gas burner controller
Data Source
Figure 1
Figure 2
Figure 3
AI summary
A heating system comprises a gas burner configured to burn gas to produce heat. The gas burner comprises a gas inlet and a gas burner controller. A gas valve is arranged to regulate the flow of gas to the gas inlet of the gas burner. The system includes power lines, and the gas valve is connected to the gas burner controller via one or more of the power lines. A gas valve control unit is operatively connected to the gas valve. The gas valve control unit includes stored parameter data of the gas valve. The gas burner controller transmits an enquiry signal to the gas valve control unit, and the gas valve control unit is operative to transmit the parameter data to the gas burner controller in response to receipt of the enquiry signal. The enquiry signal and the parameter data are transmitted via the one or more power lines interconnecting the gas valve and the gas burner controller.