Heating System Ignition Control via Dynamic Fuel Slope
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing heating system ignition control methods often result in variable ignition timing, leading to undesirable pressure surges and noise when ignition is too early, and delayed heat output when it is too late, due to a fixed linear fueling increase slope that does not account for fuel quality and power requirements.
Innovation Solution
A method for controlling the ignition operation of a heating system by determining operating parameters based on fuel quality and power demand, adjusting the fuel supply to achieve precise ignition, using a starting power range that matches the power requirement for quiet and safe ignition, and employing a control unit to regulate the fluid supply parameter linearly until ignition, with adjustments based on previous ignition characteristics.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If a fixed linear fueling increase slope is used, then the control process is simple, but the ignition timing varies considerably causing pressure surges and noise
Solution Approach 1:
The patent applies dynamics by transitioning from a fixed linear fueling slope to a dynamic fueling strategy where the slope is continuously adapted based on real-time monitoring of ignition progress and system parameters. The control unit adjusts the fueling rate dynamically to maintain consistent ignition timing despite variations in fuel quality and ambient conditions.
Solution Approach 2:
The patent implements parameter changes by modifying the fueling slope parameter based on detected ignition characteristics. The control unit monitors parameters such as pressure rise rate, temperature, and fuel consumption rate, then adjusts the fueling slope to optimize ignition timing and prevent pressure surges and noise.
2Loss of time
If the fueling slope is increased to achieve faster ignition, then the heat output is available sooner, but pressure surges and loud ignition noise occur
Solution Approach 1:
The patent applies feedback by continuously monitoring system parameters during the fueling process and using this information to adjust the fueling rate. Sensors detect pressure, temperature, and combustion characteristics, feeding this data back to the control unit which then modulates the fueling slope to achieve fast ignition without causing pressure surges or noise.
Solution Approach 2:
The patent implements preliminary anti-action by detecting early signs of problematic combustion behavior and counteracting them before they develop into full pressure surges or loud noise. The control unit monitors combustion characteristics and preemptively adjusts the fueling rate to prevent harmful effects.
3Reliability
If the fueling slope is decreased to prevent pressure surges, then ignition timing is more consistent, but the heat output is delayed
Solution Approach 1:
The patent uses dynamics to allow the fueling slope to vary over time rather than remaining fixed. The slope starts at a moderate rate for consistency, then increases dynamically when safe conditions are detected, achieving both timing consistency and fast heat output.
4Loss of time
If the ignition timing is advanced to provide earlier heat output, then the response time is improved, but pressure surges and noise increase
Solution Approach 1:
The patent applies feedback control to monitor combustion parameters in real-time and adjust the fueling rate to achieve advanced ignition timing without causing pressure surges or noise. The control unit uses sensor data to maintain optimal combustion conditions throughout the ignition process.
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 ensures quick, safe, and reliable ignition, improving operational safety and comfort by precisely adjusting to fuel quality and power requirements, reducing noise and ensuring timely heat output.
Implementation Method 1
A quantity of fuel in a fuel-air mixture is slowly increased until an ignitable mixture results
Implementation Method 2
at least one device for generating thermal energy, in particular a heater or heating burner, in particular for use in heating a building and/or for generating hot water, preferably by burning a gaseous or liquid fuel
Data Source
Figure 1
Figure 2~3
Figure 4~5
AI summary
The invention relates to a method for controlling the ignition operation (56) of a heating system (46). It is proposed that at least one operating characteristic value (66) acquired prior to the ignition operation (56) be taken into account, wherein the operating characteristic value (66) is suitable for determining the quality of a fuel used in the heating system (46), in particular the calorific value of the fuel and/or the type of fuel, and/or the operating characteristic value (66) is suitable for determining a power requirement (64) for the heating system (46). The invention also relates to a control unit (18) configured for carrying out a method according to the invention, and to a heating system (46) with the control unit (18) according to the invention.