Heating Device Combustion Air Flow Regulation
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Solution Overview
Problem
Existing heating devices face challenges in efficiently controlling the volume flow of combustion air, leading to high pollutant emissions due to incomplete or cooled combustion, requiring complex and expensive measurement systems that are prone to errors and drift.
Innovation Solution
Determining the volume flow coefficient using static pressure and power consumption measurements, with only one sensor needed for variably controllable blowers, allowing for easy calculation of volume flow using reference values and characteristic curves, reducing the need for multiple sensors and minimizing errors.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If multiple sensors and measuring points are used to determine volume flow, then measurement precision is improved, but device complexity increases and cost increases
Solution Approach 1:
The patent extracts the volume flow determination from complex multi-sensor systems and implements it using a simplified approach with fewer sensors. Specifically, it uses minimal sensor configurations (one or two sensors) combined with fan characteristic curves to achieve accurate volume flow measurement without the complexity of multiple measuring points and redundant control systems.
Solution Approach 2:
The patent employs inexpensive sensors rather than expensive complex measurement systems. By using standard, readily available sensors in minimal quantities (one or two sensors maximum), the system achieves the required measurement precision at significantly lower cost and complexity compared to prior art requiring multiple specialized sensors and measuring points.
2Measurement precision
If multiple sensors and measuring points are used to determine volume flow, then measurement precision is improved, but manufacturing cost increases
Solution Approach 1:
The patent employs inexpensive sensors rather than expensive complex measurement systems. By using standard, readily available sensors in minimal quantities (one or two sensors maximum), the system achieves the required measurement precision at significantly lower cost and complexity compared to prior art requiring multiple specialized sensors and measuring points.
Solution Approach 2:
The patent extracts the volume flow determination from complex multi-sensor systems and implements it using a simplified approach with fewer sensors. Specifically, it uses minimal sensor configurations (one or two sensors) combined with fan characteristic curves to achieve accurate volume flow measurement without the complexity of multiple measuring points and redundant control systems.
3Measurement precision
If complex measurement systems with multiple sensors are used, then measurement precision is improved, but reliability decreases due to drift and aging
Solution Approach 1:
The patent extracts the volume flow determination from complex multi-sensor systems and implements it using a simplified approach with fewer sensors. Specifically, it uses minimal sensor configurations (one or two sensors) combined with fan characteristic curves to achieve accurate volume flow measurement without the complexity of multiple measuring points and redundant control systems.
Solution Approach 2:
The patent employs inexpensive sensors rather than expensive complex measurement systems. By using standard, readily available sensors in minimal quantities (one or two sensors maximum), the system achieves the required measurement precision at significantly lower cost and complexity compared to prior art requiring multiple specialized sensors and measuring points.
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
Enables efficient and accurate control of combustion air volume flow with minimal effort, ensuring optimal combustion and reducing pollutant emissions, while being cost-effective and less susceptible to measurement errors.
Implementation Method 1
Combustion air is supplied via a fan. The volume flow can be monitored.
Implementation Method 2
The heating device has a combustion chamber in which a fuel, such as a gas, is burned. The released heat is transferred to the heating medium in a heat exchanger.
Implementation Method 3
The released heat is transferred to the heating medium in a heat exchanger.
Data Source
AI summary
The invention relates to a method for regulating a heating device and to a heating device which has a combustion chamber, wherein combustion air is introduced into the combustion chamber by means of a controllable blower. Here, a rotational speed of the blower wheel is detected. A problem addressed by the invention is that of making it possible to determine the volume flow rate of air with little outlay. The method according to the invention is characterized in that a static pressure and/or a power consumption of the blower is determined, wherein a volume flow rate of the combustion air is determined on the basis of the rotational speed in conjunction with the static pressure or the power consumption. For this purpose, the heating device has a rotational speed sensor and a pressure sensor and/or a power sensor.