Atmospheric Analysis System Pipe Cleaning Mechanism
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Solution Overview
Problem
Existing atmospheric environment analysis systems in clean rooms face challenges in accurately analyzing ambient air due to contaminant adsorption on pipe walls, leading to potential errors in measurement results.
Innovation Solution
The proposed atmospheric environment analysis system incorporates a mechanism for cleaning pipes by supplying purge gas when the concentration of analysis targets exceeds a threshold, allowing for efficient removal of contaminants and alignment of adsorption states across pipes of different lengths.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If pipes are used to transport ambient air for analysis, then the analysis can be performed remotely at multiple locations, but contaminant adsorption on pipe walls causes measurement errors
Solution Approach 1:
The system performs preliminary cleaning of pipe walls by supplying purge gas before actual analysis. This preliminary action removes contaminants that would otherwise adsorb onto the pipe walls during analysis, ensuring measurement accuracy while maintaining remote analysis capability
Solution Approach 2:
The system changes the gas flow parameters (switching between analysis gas and purge gas) to control the adsorption process. By alternating between normal analysis conditions and purge gas supply, the system maintains measurement precision while enabling remote operation
2Measurement precision
If purge gas is supplied continuously to clean pipes, then contaminant adsorption is prevented, but power consumption increases
Solution Approach 1:
Instead of continuous purge gas supply, the system uses periodic action by supplying purge gas only when contamination is detected or at predetermined intervals. This periodic cleaning maintains measurement accuracy while significantly reducing power consumption compared to continuous operation
Solution Approach 2:
The system incorporates feedback mechanisms where analysis results are monitored to determine when purge gas supply is necessary. When contaminant levels exceed thresholds or after predetermined time intervals, purge gas is supplied to clean the pipes, optimizing the balance between measurement precision and energy consumption
3Area of stationary object
If pipes of different lengths are used for different measurement locations, then coverage area increases, but adsorption alignment becomes inconsistent
Solution Approach 1:
The system performs preliminary cleaning of all pipes regardless of length before analysis. This standardized preliminary action ensures that pipes of different lengths all start from a consistent clean state, eliminating adsorption alignment issues while maintaining extensive coverage area
Solution Approach 2:
The purge gas supply system serves all pipes of different lengths through a universal cleaning mechanism. By providing purge gas to all pipes regardless of their specific characteristics, the system achieves consistent adsorption removal across the entire measurement network
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 approach enables accurate and efficient environment analysis by minimizing contaminant adsorption on pipe walls, ensuring consistent measurement results across multiple locations, and reducing power consumption by optimizing purge gas supply.
Implementation Method 1
supplying a purge gas to the interior surface of the pipe in a state in which the analysis target is adsorbed on the interior surface of the pipe
Data Source
AI summary
An analysis system includes an analysis device; a first pipe including a first end portion, a second end portion, and a first location between the first end portion and the second end portion; a first valve between the second end portion and the analysis device; a gas supply source supplying purge gas; a second pipe including a third end portion connected to the first location, and a fourth end portion connected to the gas supply source; a second valve in the second pipe; a third pipe including a fifth end portion, a sixth end portion, and a second location between the fifth end portion and the sixth end portion; a third valve between the sixth end portion and the analysis device; a fourth pipe including a seventh end portion connected to the second location, and an eighth end portion connected to the gas supply source; and a fourth valve.