Concentric Torch Heat Sink for ICP Spectroscopy Alignment
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Solution Overview
Problem
Current sample preparation systems for inductively coupled plasma spectroscopy instruments face challenges in efficiently conditioning samples for trace element detection, particularly in maintaining precise concentric alignment and thermal stability of components, which affects the accuracy and reliability of chemical analysis.
Innovation Solution
A sample preparation assembly featuring a torch with concentrically arranged cylindrical tubes, a heat sink element, and an injector with a spray chamber, where the tubes are secured using a mounting element and a securing element that allows for thermal expansion and contraction, ensuring precise alignment and fluid flow, and a heat sink element to control temperature and reduce interference.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If conventional sample preparation systems are used, then basic sample introduction is achieved, but precise concentric alignment and thermal stability are compromised, affecting analysis accuracy
Solution Approach 1:
The torch assembly is divided into separate modular components (inner tube, outer tube, mounting element, heat sink element) that can be independently manufactured and assembled. This segmentation allows each component to be optimized for its specific function while maintaining overall system reliability and thermal stability.
Solution Approach 2:
The torch employs concentrically arranged tubes where the second inner tube is positioned within the first outer tube. This nested configuration maintains precise geometric relationships and concentric alignment while allowing independent thermal management of each tube, thereby improving both measurement precision and thermal stability.
2Manufacturing precision
If tubes are rigidly fixed for precise alignment, then concentric arrangement is maintained, but thermal expansion and contraction are restricted, affecting reliability
Solution Approach 1:
The mounting element and securing element are designed to provide flexible mechanical support that allows the tubes to expand and contract thermally while maintaining their concentric geometric relationship. This dynamic support system accommodates thermal movements without compromising alignment precision or structural reliability.
Solution Approach 2:
The patent explicitly accounts for thermal expansion by designing the mounting and securing elements to accommodate dimensional changes in the tubes during heating and cooling cycles. This ensures that the concentric alignment is maintained despite thermal effects, resolving the contradiction between rigid fixation and thermal flexibility.
3Measurement precision
If complex mounting structures are used to maintain alignment, then precise positioning is achieved, but device complexity increases
Solution Approach 1:
The mounting element serves multiple functions simultaneously: it secures the inner tube to the outer tube, maintains their concentric arrangement, provides flexible thermal accommodation, and supports the overall torch structure. This multi-functionality reduces the number of separate components needed, thereby simplifying the device while maintaining alignment precision.
Solution Approach 2:
The patent combines the mounting and securing functions into an integrated assembly where the mounting element and securing element work together as a unified support system. This merging of functions reduces structural complexity while ensuring precise and stable positioning of the concentric tubes.
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
Enhances the accuracy and reliability of chemical analysis by maintaining precise sample preparation conditions, improving the detection of trace elements and reducing interference, while being manufacturable and adaptable for ICP spectroscopy instruments.
Implementation Method 1
a heat sink element to control temperature and reduce interference
Data Source
AI summary
A sample preparation assembly includes a torch configured for use with an inductively coupled plasma spectroscopy instrument. The torch includes at least two approximately cylindrical tubes arranged substantially concentrically. The sample preparation assembly also includes an injector configured for use with the inductively coupled plasma spectroscopy instrument. The injector includes an injection nozzle and a spray chamber. The sample preparation assembly further includes a heat sink element. The heat sink element includes a securing element. The securing element is configured to mate with a mounting element of the torch to mechanically support the heat sink element.