Hydronic Heating Pressure Monitoring for Leak Trend Prediction

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Solution Overview

Problem

Hydronic heating systems face challenges in detecting and addressing leaks efficiently, as sudden pressure drops may lead to emergency repairs, while slow leaks can be overlooked, resulting in potential system failure and inefficiencies in maintenance scheduling.

Innovation Solution

A pressure monitoring system that remotely collects and analyzes pressure data, models leakage trends using exponential or hyperbolic functions, and issues timely notifications to prevent critical failures, allowing for proactive maintenance and minimizing emergency service trips.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Measurement precision

If pressure monitoring is performed continuously with simple threshold alerts, then sudden leaks are detected, but slow leaks are overlooked and maintenance is delayed

Engineering Contradiction:
Improveleak detection capabilityVSAvoidsystem failure prevention
Core Design Contradiction:
Measurement precisionVSReliability

Solution Approach 1:

The system performs preliminary action by predicting future pressure levels based on historical data and leakage trends. The computer calculates when pressure will reach critical thresholds, enabling proactive maintenance scheduling before system failure occurs, rather than merely reacting to current pressure readings

Inventive Principle:
Principle #10Preliminary action

Solution Approach 2:

The system implements feedback by continuously monitoring pressure, comparing actual readings against predicted values, and adjusting maintenance schedules based on the discrepancy. This closed-loop approach allows the system to adapt to changing leakage rates and provide dynamic maintenance recommendations

Inventive Principle:
Principle #23Feedback

2Reliability

If emergency repairs are performed immediately upon pressure drop detection, then system reliability is maintained, but maintenance costs and service trips increase

Engineering Contradiction:
Improvesystem operational statusVSAvoidmaintenance efficiency
Core Design Contradiction:
ReliabilityVSProductivity

Solution Approach 1:

The system schedules maintenance in advance based on predicted pressure critical points, allowing planned service trips rather than emergency responses. This enables maintenance teams to prepare appropriately and consolidate service calls, improving overall maintenance efficiency

Inventive Principle:
Principle #10Preliminary action

Solution Approach 2:

The system provides a time buffer by predicting when pressure will reach critical levels, giving advance notice before failure occurs. This cushioning time allows for scheduled maintenance during convenient periods rather than urgent emergency repairs, reducing overall maintenance costs

Inventive Principle:
Principle #11Beforehand cushioning (Prior cushioning)

3Measurement precision

If the system allows pressure to drop to critical levels before alerting, then false alarms are reduced, but system damage risk increases

Engineering Contradiction:
Improvealert accuracyVSAvoidsystem damage from leaks
Core Design Contradiction:
Measurement precisionVSObject-affected harmful factors

Solution Approach 1:

The system alerts users before pressure reaches critical damage levels by predicting future pressure based on current leakage rates. This preliminary warning allows maintenance to be scheduled proactively, preventing the harmful effects of prolonged operation at low pressure while avoiding false alarms about immediate failure

Inventive Principle:
Principle #10Preliminary action

Data Source

PatentEP3589930B1Evaluation of heating liquid pressure drops in a hydronic heating system
Publication Date: 2024.10.09 ADEMCO INC
  • EP3589930B1 patent drawingFigure 1
  • EP3589930B1 patent drawingFigure 2
  • EP3589930B1 patent drawingFigure 3

AI summary

A hydronic heating system that may depend on pressure in the system for smooth operation. The pressure may be monitored. Pressure in the system may indicate health of the heating system. Certain pressures or variations of pressures may indicate one or more conditions in the system which may be good or adverse. An example of an adverse condition may be leakage of fluid from the system. Analyses of pressures detected in the heating system may be performed by a computer programmed to indicate conditions of the system that are reflected by the detected pressures.