SMB Distributor Plate with Limited Bed Immersion
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Solution Overview
Problem
In multi-stage column processes, the presence of obstacles within the granular medium hampers fluid flow and reduces the efficiency of fluid distribution and collection systems, particularly in large-diameter columns, where bulky distribution systems and embedded stiffening elements occupy valuable volume and disrupt fluid flow.
Innovation Solution
Integrating the distribution system and stiffening elements into the distributor plate itself, reducing the volume of these elements within the granular bed and allowing for improved fluid flow by minimizing obstacles in the bed, which can increase the height of the distributor plate and reduce the granular medium volume.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Volume of stationary object
If the distribution system and stiffening elements are positioned within the granular bed, then the total column volume is minimized, but the fluid flow is disrupted and axial dispersion increases
Solution Approach 1:
The distribution system and stiffening elements are extracted from the granular bed and repositioned within the distributor plate structure. This removes the obstacles from the fluid flow path through the granular medium, eliminating axial dispersion while maintaining compact column design.
Solution Approach 2:
The distribution system and stiffening elements are merged with the distributor plate by integrating them into the plate's structure. The distributor plate becomes a composite structure that combines support, stiffening, and fluid distribution functions, eliminating the need for separate embedded components.
2Volume of moving object
If the distributor plate height is increased to accommodate internal means, then the plate volume increases, but the granular bed volume decreases
Solution Approach 1:
The distributor plate is designed as a multi-functional component that simultaneously provides structural support, stiffening, and fluid distribution. By integrating the distribution system and stiffening elements into the plate, the plate performs multiple functions that would otherwise require separate components, justifying the increased plate volume.
Solution Approach 2:
The distribution system is repositioned from a three-dimensional embedding within the granular bed to a two-dimensional integration within the distributor plate structure. This dimensional reorganization allows the system to maintain compact overall volume while improving fluid flow characteristics.
3Device complexity
If obstacles are present in the granular medium, then the distribution system can be compact, but the fluid flow is hampered and separation efficiency decreases
Solution Approach 1:
The obstacles (distribution system and stiffening elements) are extracted from the granular medium to preserve fluid flow paths. This extraction maintains system compactness through integration into the distributor plate while eliminating the negative impact on separation efficiency.
Data Source
AI summary
The present invention describes a device for the distribution of fluids in a multi-stage column operating in simulated moving bed (SMB) mode comprising, in the direction of flow of the principal fluid, a distribution system (6) for auxiliary fluids, and a distributor plate (10) supported by stiffening elements (7) located below said plate (10), said device being interposed between two successive beds of granular solid (2) denoted the upstream and downstream bed, the distribution system and the stiffening elements being immersed in the upstream and downstream granular beds to a slight extent with an upper limit for the degree of immersion.