Cylindrical Dividing Wall Double-Column Thermal Separation
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Solution Overview
Problem
Large temperature differences across a column partition lead to condensation, evaporation, and mechanical stress, disrupting thermodynamics and causing instability in thermal separation and chemical reaction processes.
Innovation Solution
A cylindrical partition is designed as a double wall with two coaxial cylindrical walls of different radii, forming a closed intermediate space with a radial distance of 0.1 to 10 cm, preferably 2 to 5 cm, which is insulated and can maintain negative pressure, and is filled with gases like air, helium, or nitrogen to enhance insulation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If a single-walled cylindrical partition is used, then the device complexity is low, but condensation and evaporation occur due to temperature differences, disrupting thermodynamics
Solution Approach 1:
The partition wall is divided into two separate coaxial cylindrical walls (outer wall 6 and inner wall 7) with an intermediate space 8 between them. This segmentation allows the temperature differences to be distributed across the gap rather than concentrated in a single wall, preventing condensation and evaporation while maintaining structural simplicity
Solution Approach 2:
An intermediate space 8 is introduced between the two partition walls to act as a thermal buffer. This intermediary space reduces heat transfer between the hot and cold sides of the partition, preventing direct thermal contact that would cause condensation and evaporation, thereby improving thermodynamic stability
2Productivity
If a cylindrical partition is used to divide the column, then the column is divided into separate spaces, but thermal stresses cause mechanical stress and potential skewing of the column
Solution Approach 1:
The partition is segmented into two walls with an intermediate space, allowing thermal expansion and contraction to occur within the gap rather than creating stress in a single rigid wall. This segmentation absorbs thermal stresses and prevents mechanical failure
Solution Approach 2:
The partition design changes the thermal parameters by introducing an air gap with different thermal conductivity compared to solid material. This parameter change reduces thermal stress transmission to the column structure, maintaining mechanical stability while enabling effective separation
3Reliability
If insulation is added to the partition wall, then condensation and evaporation are prevented, but the device complexity and manufacturing cost increase
Solution Approach 1:
The intermediate space between the two partition walls automatically provides insulation without requiring additional insulating materials. The air gap itself serves as the thermal barrier, allowing the structure to insulate itself and reducing manufacturing complexity
Solution Approach 2:
The partition walls are constructed as thin cylindrical shells that form an enclosed space. This thin-walled design provides effective thermal insulation through the enclosed air gap while minimizing material usage and structural complexity
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 configuration prevents condensation and evaporation, stabilizes the thermodynamics, and improves the mechanical stability of the column by enhancing the insulating effect and allowing precise control of the partition's insulating function.
Implementation Method 1
A partition wall insulated in this way prevents condensation and evaporation, thus improving the thermodynamics and stability of the column. Here, the closed space improves the insulating effect.
Implementation Method 2
The closed intermediate space can have negative pressure in order to increase the insulating effect.
Data Source
Figure 1
AI summary
The invention relates to a column for carrying out thermal separations and/or chemical reactions with a vertical cylindrical column outer wall that surrounds an inner chamber which is divided by a vertical cylindrical separating wall into two chambers in which substance exchange packets, packages and/or substance exchange bases are arranged, wherein the cylindrical separating wall, as a double wall, has two coaxial cylindrical walls that have radii of different sizes.