Multi-Way Valve Wear Monitoring via Temperature-Driven Piston Motion
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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 without disassembling it, leading to potential premature replacement and system disruptions due to unpredictable wear patterns and lack of real-time monitoring.
Innovation Solution
A method utilizing temperature/movement curves, with sensors and evaluation electronics to track the movement of the expandable material operating element, allowing for continuous monitoring of wear without opening the valve, using a temperature/movement curve to calculate the covered distance and account for hysteresis effects, enabling predictive maintenance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If empirical values and scheduled replacement are used to determine wear, then operational reliability is maintained through preventive replacement, but unnecessary replacements occur and system productivity is reduced due to downtime
Solution Approach 1:
The patent replaces mechanical/disassembly-based wear assessment with a sensor-based measurement system. Sensors (magnetic, capacitive, inductive, or optical) continuously monitor the position of the piston and expandable material operating element, enabling wear determination without mechanical intervention or system shutdown.
Solution Approach 2:
The patent implements a feedback system where sensors continuously provide data on the position and movement of valve components. This feedback enables real-time monitoring of wear patterns, allowing the system to adapt maintenance schedules based on actual wear rates rather than fixed empirical schedules.
2Measurement precision
If the valve is opened and the expandable material operating element is removed for wear diagnosis, then accurate wear assessment is achieved, but the function of the valve is interrupted and loss of time occurs
Solution Approach 1:
The patent replaces mechanical/disassembly-based wear assessment with a sensor-based measurement system. Sensors (magnetic, capacitive, inductive, or optical) continuously monitor the position of the piston and expandable material operating element, enabling wear determination without mechanical intervention or system shutdown.
Solution Approach 2:
The patent enables the valve to self-diagnose wear conditions through integrated sensors and evaluation electronics. The system continuously monitors its own operational parameters and automatically determines wear status without requiring external inspection or disassembly, maintaining continuous operation.
3Reliability
If all wearing parts in all multi-way valves are replaced early according to maintenance schedules, then reliability is ensured, but loss of substance occurs due to replacement of parts that have not reached wear limit
Solution Approach 1:
The patent implements a feedback system where sensors continuously provide data on the position and movement of valve components. This feedback enables real-time monitoring of wear patterns, allowing the system to adapt maintenance schedules based on actual wear rates rather than fixed empirical schedules.
Solution Approach 2:
The patent transitions from static, fixed-schedule maintenance to dynamic, condition-based maintenance. The evaluation electronics continuously process sensor data to determine actual wear status, enabling maintenance activities to be timed precisely when wear reaches critical thresholds rather than following predetermined schedules.
4Ease of manufacture
If empirical values from past experience are used to determine wear, then manufacturing simplicity is maintained, but measurement precision is insufficient due to unpredictable wear patterns
Solution Approach 1:
The patent replaces mechanical/disassembly-based wear assessment with a sensor-based measurement system. Sensors (magnetic, capacitive, inductive, or optical) continuously monitor the position of the piston and expandable material operating element, enabling wear determination without mechanical intervention or system shutdown.
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 accurate, real-time assessment of wear, reducing unnecessary replacements and system downtime by providing immediate information on the current condition of the expandable material operating element, allowing for timely maintenance planning and minimizing disruptions.
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
a) a sensor arrangement which is arranged inside the multi-way valve and which serves to detect the position of the piston and/or changes in the position of the piston
Implementation Method 3
using a temperature/movement curve to calculate the covered distance and account for hysteresis effects
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 (3) made of an expandable material are calculated by initially sensing the change in temperature on the operating element (3), whereupon the changes in temperature are recalculated as movements on the basis of the temperature/expansion curve applicable to the operating element (3) made of an expandable material.