Plate-Type Column With Projecting Portions For Uniform Temperature
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Solution Overview
Problem
Conventional plate-type columns in gas chromatograph systems experience uneven temperature distribution due to non-uniform heat capacity distribution caused by tube connection members, leading to incorrect analysis results when temperature is rapidly increased or decreased.
Innovation Solution
A plate-type column design with a projecting portion allowing independent temperature regulation of the main body and projecting portions, using separate temperature regulators for each, ensuring uniform heat capacity and reducing heat conduction between components.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If tube connection members are attached to the column body for connecting external tubes, then the column can be connected to the gas chromatograph system, but the heat capacity distribution becomes non-uniform causing uneven temperature distribution in the passage
Solution Approach 1:
The column is divided into two functional parts: the main body containing the passage with uniform heat capacity, and the projecting portion that houses the tube connection members. This segmentation isolates the heat capacity non-uniformity to the projecting portion while maintaining uniform temperature distribution in the main body where the passage is located.
Solution Approach 2:
The tube connection members are extracted from the main body and relocated to the projecting portion. This extraction removes the source of heat capacity non-uniformity from the critical temperature control zone, allowing the main body to maintain uniform heat capacity distribution while still providing external tube connection capability.
2Productivity
If the column is rapidly heated or cooled for quick analysis cycles, then the analysis throughput increases, but the non-uniform heat capacity distribution causes incorrect analysis results
Solution Approach 1:
By segmenting the column into a main body with uniform heat capacity and a projecting portion with tube connections, the invention enables rapid temperature changes in the main body without creating uneven temperature distribution. This allows quick analysis cycles to be performed while maintaining accurate analysis results.
Solution Approach 2:
The main body is designed with uniform heat capacity distribution specifically in the region where temperature uniformity is critical for accurate analysis. The projecting portion accepts non-uniform heat capacity since it is not involved in the temperature-sensitive separation process, thus achieving local optimization of thermal properties.
3Device complexity
If the tube connection members are integrated into the main body, then the structure is simplified, but the heat capacity distribution becomes non-uniform affecting temperature regulation
Solution Approach 1:
The column structure is segmented into a main body and a projecting portion, with the tube connection members located in the projecting portion. This segmentation maintains relative structural simplicity while ensuring that the main body has uniform heat capacity distribution for proper temperature regulation during the separation process.
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 design achieves a substantially uniform temperature distribution within the column, improving analysis throughput without affecting results and allowing for rapid temperature changes.
Implementation Method 1
a gas chromatograph system capable of rapidly increasing or decreasing the temperature of a plate-type column by pressing the column on a heater block to heat or cool it (draw heat away from it) by thermal conduction
Data Source
AI summary
Provided is a plate-type column which allows the temperature of its inner passage to be rapidly increased or decreased while ensuring the correctness of an analysis or other operations. A plate-type column 10 includes: a plate-shaped main body 11; projecting portions 12 and 13 protruding from a circumferential edge of the main body 11; and a fluid-flow passage 14 extending in the main body 11 and the projecting portions 12 and 13. An intermediate portion of the passage 14 is provided in the main body 11, while each of the end portions of the passage 14 extends from the main body 11 through the projecting portion 12 or 13, with each of the end portions being open to the outside at the tip of the projecting portion 12 or 13.