Pressurized Cylinder Valve Electronic Display for Accurate Fluid Content
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing pressurized fluid cylinder systems face challenges in accurately displaying the full status and remaining content due to pressure variations caused by temperature changes and filling inaccuracies, leading to inconsistent readings across identical cylinders and difficulty in detecting small fluid withdrawals.
Innovation Solution
The system includes a data processing unit that displays a fixed 'full' status until a non-zero fluid flow or pressure is detected, calculates the remaining content based on pressure and flow rate signals, and adjusts the display accordingly, using a pressure sensor and position sensor to provide accurate autonomy and quantity information, while also detecting leaks and fluid withdrawal via a secondary circuit.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If pressure thresholds are set to avoid temperature-induced pressure variations, then reliability of full status detection is improved, but measurement precision of small fluid withdrawals deteriorates
Solution Approach 1:
The system performs preliminary action by displaying a fixed 'full' status information before any fluid withdrawal occurs. This preliminary display remains stable until a detected withdrawal event triggers the transition to dynamic content display, thereby avoiding false alarms from temperature variations while maintaining precision for actual withdrawals.
Solution Approach 2:
The introduction of an intermediary element - the position sensor detecting control member movement - serves as a mediator between the physical withdrawal action and the display state change. This intermediary detection mechanism allows the system to distinguish between temperature-induced pressure changes and actual fluid withdrawals, resolving the contradiction between reliability and precision.
2Measurement precision
If pressure thresholds are lowered to detect small fluid withdrawals, then measurement precision of small withdrawals is improved, but reliability of full status detection deteriorates due to temperature variations
Solution Approach 1:
The system applies dynamics by transitioning from a static display mode (showing fixed full status) to a dynamic display mode (showing real-time pressure and quantity). This dynamic adaptation allows the system to maintain high reliability during full status by using fixed information, then switch to high precision measurement mode when withdrawal is detected, resolving the contradiction between reliability and precision.
Solution Approach 2:
The position sensor acts as an intermediary that triggers the display mode transition. By detecting control member position changes, it provides a reliable trigger signal that initiates the switch from static full-status display to dynamic withdrawal monitoring, ensuring both reliability during storage and precision during withdrawal detection.
3Reliability
If a digital guarantee seal displays fixed full nature information, then reliability of full status indication is improved, but loss of information about actual cylinder capacity occurs
Solution Approach 1:
The display system dynamically adapts its information content based on the operational state. During the full status period, it displays reliable fixed information. Upon detecting withdrawal, it transitions to displaying dynamic pressure and quantity information, thereby preserving both the reliability of full indication and the information about actual capacity utilization throughout the cylinder's lifecycle.
Solution Approach 2:
The system employs periodic action by maintaining a stable display state during the full period, then periodically updating to show actual pressure and quantity information during withdrawal. This periodic transition ensures that users receive reliable full status confirmation initially, then accurate capacity information as fluid is consumed.
4Loss of information
If pressure information is displayed before first use, then information availability to user is improved, but measurement precision deteriorates due to filling inaccuracies and temperature variations
Solution Approach 1:
The system performs preliminary action by providing fixed full status information before use, satisfying the user's need for information availability. When withdrawal is detected, it transitions to displaying actual measured pressure and quantity, thereby providing information upfront without compromising measurement precision during actual usage monitoring.
Solution Approach 2:
The position sensor serves as an intermediary trigger that initiates the transition from displaying fixed preliminary information to displaying actual measured information. This intermediary mechanism ensures that preliminary information is provided without affecting subsequent measurement precision, as the transition is triggered by actual withdrawal detection rather than pressure threshold changes.
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
This solution ensures accurate and consistent display of cylinder content, ignoring temperature-induced pressure fluctuations, and provides reliable information on remaining fluid quantity and autonomy, enhancing user confidence in cylinder fullness and usage tracking.
Implementation Method 1
The valve (1) has a sensor (9) for sensing the position of the member (5) for manually controlling the regulating member (4)... a pressure sensor and position sensor to provide accurate autonomy and quantity information
Implementation Method 2
The valve (1) has a sensor (9) for sensing the position of the member (5) for manually controlling the regulating member (4), the position sensor (9) being connected to a member (7) for acquiring, storing and processing data in order to transmit to the latter a signal indicative of the fluid flow rate and/or pressure set by the regulating member (4)
Data Source
AI summary
The invention concerns a pressurized fluid cylinder equipped with a valve accommodating a first draw-off circuit, the valve comprising a member for regulating the flow and/or the pressure of the fluid drawn off via a member for manually controlling the regulating member, the valve comprising an electronic device for displaying data concerning the amount of fluid contained in a cylinder which is connected to the valve, the electronic display device comprising a member for acquiring, storing, and processing data, and at least one data display connected to the data acquisition, storage and processing member.