Cryocooler-Coupled Atmosphere Analysis Chamber for Field Cooling
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Solution Overview
Problem
Existing devices for examining the atmosphere, such as those with cooling circuits or tempering gas systems, are costly, maintenance-intensive, and not well-suited for field use due to their complexity and inefficiency in cooling the atmosphere analysis chamber.
Innovation Solution
A device utilizing a cryocooler thermally coupled to the atmosphere analysis chamber for efficient and low-maintenance cooling, allowing for a high cooling capacity and extended operating temperature range, including the use of a Gifford-McMahon, pulse tube, or Stirling cryocooler with multiple stages and thermally conductive connections for improved cooling efficiency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Temperature
If a cooling circuit with coolant circulation is used to cool the atmosphere analysis chamber, then cooling capacity is achieved, but the device becomes costly and maintenance-intensive
Solution Approach 1:
The patent extracts the cooling function from a complex cooling circuit system and implements it through a simplified cryocooler device. The cryocooler is a self-contained unit that provides cooling without requiring external coolant circulation systems, pipes, heat exchangers, and cooling units, thereby reducing device complexity while maintaining cooling capacity.
Solution Approach 2:
The cryocooler is designed as a self-service cooling system that operates autonomously without requiring external maintenance or complex control systems. It generates its own cooling effect internally, eliminating the need for coolant circulation and external cooling units, thus reducing both device complexity and maintenance requirements.
2Temperature
If a tempering gas system is used for cooling, then cooling function is provided, but the system becomes costly and maintenance-intensive
Solution Approach 1:
The patent removes the tempering gas system and replaces it with a cryocooler that provides cooling through a different mechanism. This extraction eliminates the complexity and maintenance requirements associated with tempering gas systems while preserving the essential cooling function needed for the atmosphere analysis chamber.
Solution Approach 2:
The cryocooler operates as a self-service system that does not require external tempering gas supply or complex control mechanisms. It independently generates cooling effects, reducing maintenance requirements and improving ease of operation in field conditions.
3Temperature
If conventional cooling systems are used, then cooling is provided, but the operating temperature range is limited
Solution Approach 1:
The patent employs parameter changes by selecting a cryocooler capable of operating at extremely low temperatures, extending the operating temperature range below -200°C. This allows the atmosphere analysis chamber to function across a broader temperature spectrum, enhancing the device's adaptability for various atmospheric examination conditions.
Solution Approach 2:
The cryocooler utilizes phase transitions of refrigerant materials to achieve and maintain extended temperature ranges. By leveraging phase change phenomena at cryogenic temperatures, the system achieves superior temperature control and extended operating flexibility compared to conventional cooling systems.
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
The cryocooler-based device provides reliable, efficient, and low-maintenance cooling with a high cooling capacity and extended temperature range, enabling effective examination of atmospheric composition, particularly below -200°C, while reducing maintenance and operational costs.
Implementation Method 1
a cryocooler which is thermally coupled to the atmosphere analysis chamber for cooling the atmosphere analysis chamber
Implementation Method 2
the outer chamber is under negative pressure, in particular vacuum. This improves the thermal insulation effect of the outer chamber
Data Source
AI summary
The invention relates to a device for examining an atmosphere, comprising an atmosphere analysis chamber and a cryocooler, which is thermally coupled to the atmosphere analysis chamber for cooling the atmosphere analysis chamber. The invention further relates to the use of the device for examining an atmosphere, in particular the composition of an atmosphere.