Sealing Valve Pressure Feedback for Fast Opening Position Estimation
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Solution Overview
Problem
Conventional valve systems struggle to quickly and accurately estimate the opening position of a sealing valve due to variations caused by environmental conditions and part tolerances, leading to inefficiencies in fluid flow control.
Innovation Solution
A valve system with a pressure sensor and control unit that continuously moves the valve element at a constant speed, stops when a predetermined pressure change is detected, and estimates the opening position based on stored data, allowing for rapid and accurate determination of the valve's opening distance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If the sealing valve opens two steps at a time with position estimation based on pressure change, then the valve can be opened, but the opening position estimation is inaccurate due to environmental variations and part tolerances
Solution Approach 1:
The system performs preliminary actions by continuously moving the valve element in the opening direction at a constant speed before the actual opening operation, and stores the position when a predetermined pressure change is detected. This preliminary positioning action allows accurate determination of the valve opening position by calculating the distance from the stored position to the actual opening position, thereby resolving the inaccuracy caused by environmental variations and part tolerances.
2Measurement precision
If the valve element position is stored when pressure changes by a predetermined amount, then the opening position can be estimated accurately, but the time required for position determination increases
Solution Approach 1:
The valve element is continuously moved in the opening direction at a constant speed during the estimation period, rather than moving in discrete steps with waiting periods. This continuous movement combined with real-time pressure monitoring allows the system to capture the position information efficiently, reducing the time required for position determination while maintaining high accuracy.
3Productivity
If the valve element moves at constant speed with continuous monitoring, then the opening position can be quickly determined, but the complexity of the control system increases
Solution Approach 1:
The system uses pressure change feedback to determine when the valve element has moved the correct distance. By monitoring the pressure change amount and comparing it to a predetermined threshold, the control unit can automatically stop the valve element at the correct position. This feedback mechanism enables quick and accurate position determination without requiring complex control algorithms or multiple sensors.
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 quick and precise estimation of the valve opening position, improving fluid flow control and maintaining proper sealing even under varying conditions.
Implementation Method 1
a pressure sensor that has a valve element and detects an internal pressure of the tank
Data Source
AI summary
A valve system that can quickly estimate the valve opening position including a tank to store fluid, a pressure sensor having a valve element to detect an internal pressure of the tank, a valve to open and close the tank, a driving device to stroke the valve element of the valve, and a control unit.