Column heater with active pre-heating
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Solution Overview
Problem
Maintaining accurate and consistent column temperature in liquid chromatography systems is crucial for separation performance and reproducibility, but existing systems lack efficient temperature control solutions, especially in configurations where equipment arrangement is flexible and maintenance is required.
Innovation Solution
A column-heater enclosure with a detachable thermal module and active pre-heater assembly that includes a thermally conductive heater block and heater cartridge, allowing for precise temperature control of the liquid before it enters the chromatography column, along with a hinge bracket for flexible equipment arrangement.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If a detachable thermal module with active pre-heater assembly is used, then temperature control precision and equipment flexibility are improved, but device complexity increases
Solution Approach 1:
The thermal module is designed as a detachable unit that can be separated from the main chromatography system. This segmentation allows the temperature control system to be independently configured, maintained, and replaced without affecting the entire chromatography apparatus, thereby achieving precise temperature control while managing device complexity through modular design.
Solution Approach 2:
The active pre-heater assembly heats the liquid mobile phase before it enters the chromatography column. This preliminary heating action ensures that the sample and mobile phase are at the correct temperature prior to separation, improving temperature control precision and reproducibility without requiring the entire system to be heated.
2Adaptability or versatility
If equipment arrangement is made flexible with hinge brackets, then adaptability is improved, but device complexity increases
Solution Approach 1:
The hinge bracket enables dynamic repositioning of the thermal module relative to the chromatography system. The bracket allows the module to be adjusted to different angles and positions, providing flexible equipment arrangement that can adapt to various laboratory space configurations while maintaining a relatively simple mechanical connection.
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 solution provides consistent and reliable temperature control, facilitating flexible equipment setup and easy maintenance, thereby enhancing the accuracy and reproducibility of liquid chromatography results.
Implementation Method 1
The heater cartridge is in thermal communication with the heater block and is configured to provide heat to the heater block
Implementation Method 2
The heater block is made of thermally conductive material. The tubing extends through the tube path from the tube inlet to the tube outlet and is in thermal communication with the heater block
Data Source
AI summary
To heat a flowing liquid, an apparatus includes a heater block assembly having a heater block made of thermally conductive material. The heater block assembly has a tube inlet, a tube outlet, and a tube path between the tube inlet and tube outlet. Tubing extends through the tube path from the tube inlet to the tube outlet. The tubing is in thermal communication with the heater block. A heater cartridge, in thermal communication with the heater block, is configured to provide heat to the heater block for transfer to liquid flowing through the tubing between the tube inlet and the tube outlet of the heater block assembly. Circuitry is in electrical communication with the heater cartridge to control a temperature of the heater block by controlling operation of the heater cartridge.