Method for checking the presence of a check valve in a heating system
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Solution Overview
Problem
In multiple occupancy heating systems, the absence or incorrect installation of non-return valves can lead to exhaust gas backflow, posing safety risks and requiring skilled personnel for manual operation, which complicates integration and commissioning.
Innovation Solution
A method to automatically detect the presence of non-return valves by changing an operating parameter and measuring fluid flow, transferring the heater to a fault state if no valve is detected, ensuring safe operation and simplifying integration into heating systems.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If manual adjustment of device control is performed during commissioning, then the heater can be integrated into the heating system, but the operational reliability decreases because the device will operate even if the non-return valve is missing or incorrectly installed
Solution Approach 1:
The heater automatically performs the non-return valve detection and commissioning procedures without requiring manual intervention. The control unit autonomously changes operating parameters, records measurement parameters, detects valve presence, and transfers to fault state if necessary, eliminating the need for skilled personnel and ensuring consistent reliable operation
Solution Approach 2:
The system implements automatic feedback by continuously monitoring measurement parameters during operation to detect the presence or absence of the non-return valve. The control unit processes this feedback information and automatically adjusts the operational state, ensuring the heater only operates when proper safety components are verified
2Device complexity
If no automatic detection system is implemented, then the device structure remains simple, but the safety risk increases due to potential exhaust gas backflow
Solution Approach 1:
The patent replaces complex mechanical detection mechanisms with an automated control system that uses electronic sensors and software logic to detect non-return valve presence. The control unit automatically changes operating parameters and interprets measurement data to determine valve status, eliminating the need for complex mechanical testing apparatus while ensuring safety
Solution Approach 2:
The control unit acts as an intermediary between the heater operation and safety verification. It mediates the detection process by autonomously performing parameter changes, recording measurements, and determining valve presence, thereby connecting the operational system with safety requirements without requiring direct manual intervention or complex external detection equipment
3Ease of manufacture
If skilled personnel are required for manual operation and commissioning, then the installation can be performed, but the ease of operation decreases and requires specialized training
Solution Approach 1:
The heater automatically performs the non-return valve detection and commissioning procedures without requiring manual intervention. The control unit autonomously changes operating parameters, records measurement parameters, detects valve presence, and transfers to fault state if necessary, eliminating the need for skilled personnel and ensuring consistent reliable operation
Data Source
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Figure 3
AI summary
The invention relates to a method for testing a check valve (1) in a heating system with at least one heating device (2), comprising at least the following steps: a) changing an operating parameter (3) of the heating device (2) that can cause a change in the fluid flow through the heating device (2), b) detecting a measurement parameter (4) that allows conclusions to be drawn about the fluid flow through the heating device (2), c) detecting the presence of a check valve (1) if the measurement parameter (4) is at least temporarily independent of the change in the operating parameter (3).