Vacuum-Secured Chromatography Distributor Plate
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Solution Overview
Problem
Existing chromatography columns face challenges in securely attaching the distributor plate to the backing plate due to distortion under pressure, requiring numerous screws or bolts, which is costly, time-consuming, and prone to corrosion, with potential errors in setup and maintenance.
Innovation Solution
A method using a vacuum pump to create an air pocket between the plates, secured by sealing means like O-rings, simplifies the attachment process by removing air from the pocket, reducing the need for multiple fasteners and enhancing ease of cleaning.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If numerous screws or bolts are used to secure the distributor plate to the backing plate, then the connection strength is improved, but the device complexity and time consumption increase
Solution Approach 1:
The patent replaces the mechanical fastening system (screws and bolts) with a vacuum-based mechanical attraction system. A vacuum pump creates a vacuum chamber between the distributor plate and backing plate, using vacuum pressure to hold the plates together. This eliminates the need for numerous screws and bolts while maintaining connection strength.
Solution Approach 2:
The patent employs pneumatic principles by using vacuum pressure to secure the distributor plate to the backing plate. The vacuum pump creates a pressure differential that attracts the plates together, replacing the need for mechanical fasteners. This pneumatic approach reduces device complexity while maintaining the required connection strength.
2Strength
If numerous screws or bolts are used to secure the distributor plate to the backing plate, then the connection strength is improved, but the manufacturing cost and time consumption increase
Solution Approach 1:
The patent replaces the time-consuming mechanical fastening process with a vacuum-based system. Instead of manually installing numerous screws and bolts, the operator simply activates the vacuum pump to create the vacuum chamber, which automatically secures the distributor plate to the backing plate, significantly reducing setup time.
Solution Approach 2:
The patent incorporates preliminary action by pre-installing the vacuum pump and sealing elements before the actual assembly operation. The vacuum pump is positioned and connected in advance, so that when the assembly is made, the operator only needs to activate the vacuum system rather than performing multiple fastening operations.
3Strength
If screws or bolts are used to secure the distributor plate to the backing plate, then the connection strength is improved, but the reliability decreases due to corrosion
Solution Approach 1:
The patent eliminates the metal fasteners (screws and bolts) that are prone to corrosion by replacing them with a vacuum-based holding system. The vacuum pump creates a pressure differential that secures the plates together without requiring metal fasteners, thereby eliminating the corrosion issue and improving long-term reliability.
4Strength
If many screws or bolts are used to secure the distributor plate to the backing plate, then the connection strength is improved, but the ease of repair deteriorates
Solution Approach 1:
The patent replaces the complex mechanical fastening system with a simple vacuum-based system. To disassemble the connection, the operator simply deactivates the vacuum pump, allowing the vacuum pressure to equalize and the distributor plate to be easily removed from the backing plate, significantly improving ease of repair and maintenance.
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 method provides a cost-effective, efficient, and error-reduced means of securing the distributor plate to the backing plate, enhancing the operational efficiency and maintenance of chromatography columns by eliminating the need for many screws or bolts and simplifying the setup and cleaning processes.
Implementation Method 1
sealing means between said backing plate and said distributor plate of the adapter assembly and/or between the backing plate and the distributor of the base assembly, said sealing means defining an air pocket therebetween; the backing plate of the adapter assembly and/or the backing plate of the base assembly having a passage in fluid connection with said air pocket and a vacuum pump; and removing the air from the air pocket via said passage with said vacuum pump to secure the distributor plate to the backing plate
Data Source
AI summary
A chromatographic column that includes a distributor plate secured to a backing plate of the chromatography column without the need for releasable fixing means such as screws or bolts, by employing a negative pressure or vacuum to affix the distributor to the backing plate.