Mass Transfer Column Exoskeleton for Internal Support Attachment
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Solution Overview
Problem
Existing mass transfer columns face challenges in constructing shells that can withstand high loads and allow for easy attachment of support structures, particularly in large-diameter columns, as metal-reinforced concrete complicates welding of support components.
Innovation Solution
A shell construction using an exoskeleton of upright trusses and rails supports a skin with seats for horizontally extending beams, allowing for robust attachment of internals while accommodating thermal expansion.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If metal-reinforced concrete is used to construct the shell, then the shell strength is improved, but the ease of attaching support structures deteriorates
Solution Approach 1:
The shell is divided into modular segments that can be assembled together, with each segment containing integrated attachment features. This segmentation allows the shell to achieve high strength through proper structural design while enabling easy attachment of support structures to individual segments without requiring complex welding operations on the entire shell structure.
Solution Approach 2:
Attachment features such as flanges, bolts, or connection elements serve as intermediaries between the shell and support structures. These intermediaries provide a standardized interface that simplifies the attachment process while maintaining the structural integrity and strength of the shell-reinforced concrete construction.
2Strength
If the shell thickness is increased to withstand higher loads, then the shell strength is improved, but the device complexity increases
Solution Approach 1:
The shell utilizes composite construction combining concrete with metal reinforcement elements. This composite approach provides high strength-to-weight ratio and load-bearing capacity without requiring excessive thickness, thereby avoiding the complexity associated with thick-walled structures while maintaining the necessary structural integrity for withstanding high loads.
Solution Approach 2:
Instead of increasing shell thickness in one dimension, the design incorporates radial reinforcement elements and distributed support structures that provide strength through multi-dimensional arrangement. This approach achieves high load-bearing capacity without proportionally increasing overall structural complexity.
Data Source
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AI summary
A mass transfer column is provided in which a shell is formed of one or more side walls having an exoskeleton. The exoskeleton includes a plurality of vertical trusses joined together by crossing rails. An inner skin is supported by the vertical trusses and rails and, together with a top and bottom of the shell, defines an open internal region that may be pressurized and in which mass transfer process may occur. Horizontally extending beams that may be in the form of trusses span the open internal region and are supported by the exoskeleton. Internals such as structured packing may be supported on the horizontally extending beams.