Radiator Temperature Monitoring for Hydraulic Balancing Detection
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Solution Overview
Problem
Existing heating systems often suffer from hydraulic undersupply to individual radiators, leading to inefficient heat distribution and increased energy costs due to inadequate hydraulic balancing, which is a complex, time-consuming, and costly process.
Innovation Solution
A method and device for detecting the hydraulic condition of heating systems by measuring flow temperature and excess temperature differences between radiators and room air, allowing for the evaluation of heat requirements and implementing automatic adjustments to achieve balanced hydraulic supply.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If hydraulic balancing is performed manually by measuring differential pressure at each radiator, then hydraulic supply accuracy is improved, but device complexity and cost increase
Solution Approach 1:
The patent extracts the hydraulic balancing measurement function from complex differential pressure sensors and replaces it with simple temperature measurement. By measuring temperature differences between flow and return lines, the system achieves hydraulic balancing information without requiring complex pressure measurement equipment at each radiator.
Solution Approach 2:
The patent replaces the mechanical differential pressure measurement system with a thermal measurement system. Instead of using mechanical pressure sensors to directly measure hydraulic parameters, the system uses temperature sensors to indirectly detect hydraulic conditions through thermal effects, simplifying the measurement apparatus.
2Measurement precision
If hydraulic balancing is performed manually with multiple measurements, then detection accuracy is improved, but time consumption increases
Solution Approach 1:
The patent implements periodic measurement of temperature differences at flow and return lines to continuously monitor hydraulic conditions. By taking measurements at regular intervals rather than requiring multiple manual readings, the system achieves accurate detection of hydraulic changes over time while minimizing intervention time.
Solution Approach 2:
The patent enables continuous monitoring of hydraulic conditions through ongoing temperature measurement and evaluation. The system continuously processes temperature data to detect hydraulic imbalances, providing uninterrupted surveillance of system performance without requiring repeated manual measurement cycles.
3Reliability
If pump pressure is increased to compensate for hydraulic undersupply, then heat supply reliability is improved, but energy consumption increases
Solution Approach 1:
The patent implements feedback control by continuously monitoring temperature differences and evaluating hydraulic conditions. When hydraulic imbalances are detected, the system provides information for targeted adjustment of individual radiator valves or pump operation, replacing blind increases in pump pressure with informed, selective corrections that maintain reliability while reducing energy waste.
Solution Approach 2:
The patent changes the control parameter from pump pressure to temperature difference evaluation. Instead of controlling hydraulic supply through pressure increases, the system monitors temperature parameters to detect imbalances and triggers targeted adjustments, replacing energy-intensive pressure control with efficient temperature-based detection and selective correction.
4Reliability
If flow temperature is increased to compensate for insufficient heat supply, then heat delivery reliability is improved, but heat loss in distribution increases
Solution Approach 1:
The patent uses feedback from temperature difference measurements to identify specific radiators with hydraulic imbalances. This enables targeted correction of individual radiator valve settings rather than system-wide temperature increases, maintaining heat delivery reliability at radiators needing correction while avoiding unnecessary heat losses in distribution lines to properly functioning radiators.
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 reliable detection of hydraulic undersupply and automatic correction, improving heat distribution efficiency and reducing energy costs by identifying and addressing imbalances in heating systems without manual inspection or expensive hardware requirements.
Implementation Method 1
through the determination of the flow temperature and, for each radiator, an excess temperature resulting from a difference between the temperature on the radiator side and the temperature in the room air
Data Source
Figure 1
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AI summary
A method and a device for detecting the hydraulic condition of a heating system (9) with radiators (2) connected via a fluid flow system (6, 7) through which a heating medium with a flow temperature (ϑVL) flows are described. In order to detect the hydraulic balance during operation, it is provided that the flow temperature (ϑVL) and for each radiator (2) an excess temperature (Δ) derived from a difference between the temperature on the radiator side and the temperature in the room air are measured at different points in time and the heat requirement of the radiator ( 2) the indicating parameter (Δlog, BLV, VZ, GBLV, GVZ) is determined and that the change in the parameter (Δlog, BLV, VZ, GBLV, GVZ) over time or the flow temperature (ϑVL) and the change in the flow temperature over time ( ϑvL) are evaluated.