Dual spray chamber
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Solution Overview
Problem
Existing cyclonic spray chambers, both baffled and non-baffled, face issues with signal stability and intensity due to large aerosol particles, which can lead to reduced analytical performance and plasma instability in ICP spectrometry, with baffled chambers causing direct impact on smaller particles and non-baffled chambers resulting in liquid build-up and plasma extinguishment.
Innovation Solution
A dual spray chamber apparatus comprising a first cyclonic spray chamber for conditioning aerosols by separating large particles from smaller ones, with a second spray chamber further conditioning the aerosol to stabilize signals and prevent plasma instability, utilizing a linking chamber to manage aerosol flow and reduce dead volume.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If a baffle is added to a cyclonic spray chamber to improve particle separation, then separation efficiency is improved, but smaller aerosol particles are directly impacted causing signal stability deterioration
Solution Approach 1:
The spray chamber is divided into multiple chambers (first cyclonic spray chamber and second spray chamber) with different functions. The first chamber focuses on particle separation while the second chamber protects smaller particles, segmenting the separation process to avoid direct impact on fine particles and thus maintaining signal stability while achieving good separation efficiency.
2Device complexity
If a single cyclonic spray chamber is used to reduce device complexity, then the structure is simpler, but plasma instability occurs due to large aerosol particles and liquid build-up
Solution Approach 1:
The system uses two spray chambers instead of one: the first cyclonic spray chamber handles large particle removal, and the second spray chamber handles further conditioning and protects the plasma. This segmentation prevents liquid build-up and plasma extinguishment while maintaining reasonable structural complexity.
3Manufacturing precision
If a larger chamber volume is used to improve aerosol conditioning, then separation performance is improved, but dead volume increases affecting productivity
Solution Approach 1:
The total chamber volume is segmented into two chambers of appropriate sizes. The first chamber handles initial separation of large particles, and the second chamber provides further conditioning. This segmentation achieves good aerosol conditioning performance while minimizing dead volume compared to a single large chamber, thus maintaining analysis throughput.
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 dual spray chamber design enhances short-term and long-term signal stability, reduces detection limits, and prevents plasma extinguishment by effectively separating aerosol particles, improving the analytical performance of ICP spectrometry systems.
Implementation Method 1
a first cyclonic spray chamber for receiving an aerosol and conditioning the aerosol to separate a first conditioned portion of the aerosol from a second portion of the aerosol
Implementation Method 2
cyclonic spray chamber...separate...aerosol particles
Data Source
AI summary
A dual spray chamber apparatus is described. In one or more implementations, the dual spray chamber apparatus includes a first cyclonic spray chamber for receiving an aerosol and conditioning the aerosol to separate a first conditioned portion of the aerosol from a second portion of the aerosol. The first cyclonic spray chamber defines a first chamber interior and comprises an input port in fluid communication with the first chamber interior. The dual spray chamber apparatus also includes a second spray chamber coupled with the first cyclonic spray chamber for receiving the first conditioned portion of the aerosol and further conditioning the first conditioned portion of the aerosol. The second spray chamber defines a second chamber interior and comprises an output port for expelling a first further conditioned portion of the first conditioned portion of the aerosol from the second chamber interior.