Inertial Sensor Valve Actuation for Precise Stem Control
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Solution Overview
Problem
Traditional valve actuation control systems rely on complex mechanical linkages that introduce inaccuracies, high maintenance costs, and limited adaptability, making them costly and difficult to repair.
Innovation Solution
A valve actuation control system utilizing an inertial sensor, such as a MEMS-based accelerometer and gyroscope, provides precise control signals to actuators through electrical connections, reducing mechanical components and enhancing accuracy.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If traditional mechanical linkages are used for valve actuation control, then structural stability is maintained, but measurement precision and control accuracy deteriorate due to mechanical inaccuracies
Solution Approach 1:
The patent replaces traditional mechanical linkages with an inertial sensor system that uses accelerometers and gyroscopes to detect valve stem position and movement. This substitution eliminates mechanical transmission errors and provides direct digital measurement of valve actuation parameters, significantly improving measurement precision while reducing mechanical complexity
Solution Approach 2:
The inertial sensor acts as an intermediary between the valve actuator and the control system. Instead of relying on direct mechanical linkages to transmit position information, the sensor provides indirect measurement through acceleration and rotational data, which are then processed to determine valve stem position, thereby improving accuracy without mechanical complexity
2Ease of repair
If complex mechanical linkages are used in valve actuation systems, then structural stability is maintained, but ease of repair and maintenance cost worsen
Solution Approach 1:
By replacing complex mechanical linkages with an inertial sensor system connected through electrical wiring, the patent dramatically simplifies the valve actuation structure. The sensor system has fewer moving parts, no mechanical transmission components to wear or fail, and can be easily replaced or calibrated, thereby improving ease of repair while reducing overall system complexity
Solution Approach 2:
The patent extracts and removes the complex mechanical linkage components from the valve actuation system, retaining only the essential elements (actuator, sensor, and control electronics). This extraction eliminates the sources of mechanical failure and simplifies maintenance requirements, making the system easier to repair
3Adaptability or versatility
If traditional control systems are used for valve actuation, then system compatibility is maintained, but adaptability to different valve types worsens
Solution Approach 1:
The inertial sensor system provides universal adaptability to different valve types and actuation mechanisms. The accelerometers and gyroscopes can measure position and movement for various valve configurations (ball valves, butterfly valves, gate valves, etc.) without requiring specialized mechanical linkages, enabling a single control system design to adapt to multiple valve types through software configuration rather than hardware modification
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
The system achieves precise, cost-effective, and adaptable valve actuation with reduced mechanical complexity, enabling tighter control parameters and easier retrofitting to existing systems.
Implementation Method 1
an inertial sensor coupled to the stem... sensor data from the inertial sensor... sensor data can correspond to translation or rotation of the stem
Implementation Method 2
the inertial sensor can include at least one accelerometer and at least one gyroscope... rotational speed data corresponding to the rotation or translation of the stem
Data Source
AI summary
Systems, devices, and methods of controlling valve actuation using an inertial sensor are provided. The system can include a valve including an inlet, an outlet, and a plug positioned between the inlet and the outlet. The plug can include a stem configured to translate or rotate in a first direction causing the plug to open the valve or to translate or rotate in a second direction causing the plug to close the valve. The system can also include an actuator coupled to the stem, an inertial sensor coupled to the stem, and a controller coupled to the inertial sensor and to the actuator. The controller can cause the controller to receive sensor data from the inertial sensor and to generate control signals provided to the actuator. The control signals can cause the actuator to translate or rotate the stem in the first direction or the second direction.