Optically Marked Valve Membrane for Error-Free Replacement
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Solution Overview
Problem
Diaphragm valve membranes are difficult to identify during maintenance, leading to potential errors and delays in replacement, especially in inaccessible spaces, due to their hidden nature, which can result in malfunction if an unsuitable membrane is installed.
Innovation Solution
A membrane with an optically identifiable feature, such as a barcode or three-dimensional coding, is attached to the membrane flap, allowing for quick and accurate identification using a reader device, ensuring correct membrane type and specifications are recorded for efficient maintenance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a membrane is installed in a membrane valve, then the membrane performs its sealing and separation function, but the membrane becomes invisible from the outside making identification difficult
Solution Approach 1:
The membrane is divided into two functional parts: the main membrane body that performs sealing within the valve, and a separate identification element (tab or label) that protrudes outward. This segmentation allows the membrane to simultaneously fulfill its sealing function while providing external visibility for identification purposes.
Solution Approach 2:
An identification tab or label acts as an intermediary element between the hidden membrane and the external observer. This mediator carries identification information (such as barcodes or color codes) that allows personnel to identify the membrane type without needing to see the membrane itself inside the valve.
2Difficulty of detecting and measuring
If a tab is added to the membrane for identification, then the membrane type can be identified, but the tab may interfere with the membrane's mobility and sealing performance
Solution Approach 1:
The identification tab is designed with locally optimized properties: it is positioned at the periphery of the membrane where it least interferes with the central sealing area, and its material properties are tailored to provide identification functionality while minimizing mechanical interference with membrane movement.
Solution Approach 2:
The tab is designed to move dynamically with the membrane during operation rather than being a fixed constraint. It flexes and moves with the membrane's deformation, ensuring that identification functionality is maintained without permanently restricting membrane mobility or sealing performance.
3Difficulty of detecting and measuring
If visual identification methods are used, then the membrane type can be determined, but materials used are rarely visually distinguishable and identification may be erroneous
Solution Approach 1:
Different membrane materials or types are assigned distinct color codes or color patterns on the identification tab. This allows for rapid visual differentiation between membrane types without requiring close inspection or specialized equipment, significantly improving identification accuracy.
Solution Approach 2:
Traditional visual inspection of membrane materials is replaced with machine-readable identification systems such as barcodes or data matrices printed on the tab. These can be scanned by readers to automatically and accurately identify membrane specifications, eliminating human error in visual identification.
4Difficulty of detecting and measuring
If the membrane is made visible or accessible for identification, then the type can be identified, but the membrane structure and materials must be changed which increases production complexity
Solution Approach 1:
The identification functionality is segmented from the membrane's structural function. The tab is designed as a simple extension or attached element that requires minimal additional processing steps during membrane manufacturing, avoiding complex structural modifications to the membrane itself.
Data Source
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AI summary
The invention relates to a membrane (5) comprising a flap (16). The flap projects beyond the membrane clamping. At least one optical marker (17) is provided on the flap. This optical marker (17) provides machine-readable data for the membrane.