Multi-Way Valve Wear Monitoring via Thermal Expansion Tracking
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Solution Overview
Problem
Existing methods cannot accurately determine the actual wear of an expandable material operating element within a multi-way valve during operation, leading to potential system failures and unnecessary replacement of components.
Innovation Solution
A method utilizing temperature changes of the fluid or medium flowing through the valve to determine the precise covered distance of the expandable material operating element, based on its temperature/movement curve, allowing for continuous monitoring without disassembling the valve.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If manufacturers use empirically determined theoretical values for the period in use of a multi-way valve, then the replacement schedule can be planned in advance, but the actual wear of individual expandable material operating elements cannot be accurately determined, leading to premature or delayed replacement
Solution Approach 1:
The patent replaces manual mechanical inspection methods with automated optical measurement systems. A camera captures images of the expandable material operating element, and image processing algorithms automatically measure wear characteristics, eliminating the need for physical disassembly and manual measurement while providing precise quantitative wear data
Solution Approach 2:
The patent introduces an optical intermediary (camera imaging system) between the expandable material operating element and the measurement process. Light reflects off the component surface, carrying wear information that is captured by the camera and processed to determine actual wear without direct contact or disassembly
2Measurement precision
If the valve is opened and the expandable material operating element is removed for wear diagnosis, then the actual degree of wear can be checked, but the function of the valve is no longer available during this work, causing system shutdown and increased maintenance time
Solution Approach 1:
The patent enables the expandable material operating element to serve itself as both the functional component and the measurement target. The component remains in place during operation, and its own surface characteristics are measured optically without requiring removal or system shutdown, allowing continuous monitoring of wear while the valve remains functional
Solution Approach 2:
The patent replaces the mechanical process of removing and physically measuring the component with an optical measurement system that can assess wear through the valve housing, eliminating the need for disassembly and maintaining system availability during inspection
3Reliability
If maintenance schedules assume above-average wear for safety reasons, then system reliability is improved, but components are replaced unnecessarily in multi-way valves where wear has not reached the limit, increasing maintenance costs
Solution Approach 1:
The patent establishes a feedback loop where actual wear measurements are continuously obtained and compared against wear limits. This real-time feedback enables dynamic adjustment of maintenance schedules, allowing components to be retained in service until actual wear reaches critical levels rather than following fixed conservative schedules, thereby reducing unnecessary replacements while maintaining safety
Solution Approach 2:
The patent changes the maintenance decision parameter from fixed time-based schedules to condition-based parameters (actual measured wear). By monitoring real wear parameters and comparing them to critical thresholds, the system optimizes component lifecycle management, replacing parts only when necessary based on actual condition rather than predetermined time intervals
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 real-time assessment of the expandable material operating element's wear, allowing for predictive maintenance and reducing the risk of system failures by identifying wear before it reaches critical levels.
Implementation Method 1
The expandable material operating element expands corresponding to a temperature/movement curve with an increase in temperature and contracts again when the temperature drops
Implementation Method 2
Located inside a multi-way valve is a piston, which can occupy different positions. The ratio as to how the medium flows through the multi-way valve changes depending on the position of the piston. The position of the piston is changed in a temperature-dependent manner
Data Source
AI summary
A method for determining the degree of wear of a valve, the degree of wear of the valve being dependent on the degree of wear of an operating element that is made of an expandable material and performs a mechanical movement each time the temperature changes, the change in temperature resulting in wear, the operating element made of an expandable material being mechanically connected to a piston; the movements of the operating element made of an expandable material are calculated by initially sensing the change in temperature on the operating element, whereupon the changes in temperature are recalculated as movements on the basis of the temperature/expansion curve applicable to the operating element made of an expandable material.