Valve Cage Analytical Assembly for Real-Time Contamination Detection
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Solution Overview
Problem
Existing control valves in process plants, such as breweries, lack the capability to rapidly and accurately determine chemical and biological properties of process fluids, leading to delays in identifying contamination, which can result in contaminated batches and inefficiencies in process corrections.
Innovation Solution
Integration of a valve cage with embedded sensors and analysis channels within the control valve system, allowing for real-time detection and analysis of chemical and biological properties directly within the valve, enabling immediate feedback for process adjustments.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If spot samples are taken for laboratory analysis, then contamination detection is possible, but time delay prevents prompt process correction
Solution Approach 1:
The patent merges the analysis means with the control valve by integrating sensors, analysis chambers, and processing components directly into the valve structure. This allows real-time analysis of process fluid without removing samples to external laboratories, eliminating the time delay while maintaining detection accuracy.
Solution Approach 2:
The patent introduces an intermediary analysis system that bridges the control valve and the process fluid. The analysis chamber and sensors act as intermediaries to perform on-site chemical and biological analysis, enabling real-time feedback without direct external laboratory intervention.
2Speed
If sensors are placed in control valve housing, then real-time detection is enabled, but detection capability is insufficient for chemical and biological properties
Solution Approach 1:
The patent segments the control valve into functional modules including a control element, an analysis chamber, and multiple specialized sensors. This segmentation allows each component to perform its specific function optimally - the analysis chamber prepares samples while specialized sensors detect specific chemical and biological properties with high precision.
Solution Approach 2:
The control valve is designed with multi-functionality by integrating not only flow control capabilities but also analysis functions including chemical sensing, biological detection, and sample preparation. This universal design enables the single device to perform both control and comprehensive analysis tasks.
3Productivity
If analysis means are integrated into control valve, then monitoring speed increases, but device complexity increases
Solution Approach 1:
The patent implements a nested structure where the analysis chamber is positioned within the control valve housing, sensors are integrated into the valve body, and sample flow paths are routed through existing valve components. This nesting minimizes the overall footprint and reduces the number of external connections required.
Solution Approach 2:
The patent combines multiple functions including flow control, sample extraction, analysis chamber, sensing, and data processing into a single integrated control valve assembly. This merging eliminates the need for separate external analysis equipment and reduces overall system complexity despite the advanced capabilities.
Data Source
AI summary
A valve cage for guiding an actuator, such as a stroke piston, may be used in a control valve for adjusting a process fluid flow (e.g., a water flow) in a process plant (e.g., a food processing plant, a brewery, etc.) The control valve may include a sensor for detecting a chemical and/or biological property of the process fluid, and at least one analyzer for the process fluid that is arranged on the valve cage such that the analyzer can interact with process fluid.