Air Sampling System with Rotatable Drum and Pneumatic Transport
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Solution Overview
Problem
Existing air-sampling systems require human operators to load and retrieve air-sampling cartridges, posing risks of contamination and disrupting operations, as they cannot autonomously collect and transport samples without human intervention.
Innovation Solution
A system utilizing a vacuum pump and compressor to automatically pull ambient air through air-sampling cartridges and transport used cartridges to a retrieval location using pneumatic pressure, with a rotatable drum mechanism for cartridge alignment and airtight seals, allowing for continuous sampling and transport operations without operator intervention.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If human operators manually load and retrieve air-sampling cartridges, then the system can be simpler in design, but operator contamination risk increases and continuous operation is disrupted
Solution Approach 1:
The system performs self-service through automated cartridge handling. The rotatable drum mechanism automatically loads fresh cartridges and retrieves used cartridges without human intervention. The vacuum pump and compressor automatically operate to draw air samples and transport cartridges, eliminating the need for operators to physically handle cartridges at the sampling site, thus preventing contamination while maintaining operational continuity
Solution Approach 2:
Manual mechanical operations by operators are replaced with an automated mechanical system. The rotatable drum with indexed positions replaces manual cartridge insertion/removal. The vacuum pump and compressor replace manual sample collection and transport operations. This substitution eliminates operator exposure to potential contaminants while providing consistent, repeatable automated handling
2Productivity
If the system operates continuously without human intervention, then productivity increases, but device complexity increases due to automation mechanisms
Solution Approach 1:
The system maintains continuous useful action through automated operations. The rotatable drum continuously cycles through indexed positions to load fresh cartridges and retrieve used ones. The vacuum pump and compressor operate continuously or in scheduled intervals to draw air samples and transport cartridges. This eliminates idle time between manual operations and ensures uninterrupted sampling, maximizing productivity while the automated mechanisms handle the complexity of continuous operation
Solution Approach 2:
The system employs periodic action through the rotatable drum's indexed cycling. The drum rotates to specific positions at regular intervals to perform cartridge loading and retrieval operations. The vacuum and compression cycles operate periodically to draw samples and transport cartridges. This periodic automated action enables continuous productivity while using simple, repeatable mechanical cycles rather than complex continuous control systems
3Ease of operation
If manual cartridge retrieval is required, then the system structure can be simpler, but operation disruption increases and safety decreases
Solution Approach 1:
The system serves itself by automatically retrieving used cartridges through the rotatable drum mechanism. The drum rotates to position used cartridges at the retrieval location without operator intervention. The compressor automatically transports cartridges through the transport tube to the retrieval container. This self-service capability maintains operational continuity and safety while eliminating the need for operators to return to the sampling site
Solution Approach 2:
The automated system acts as an intermediary between sample collection and operator retrieval. The rotatable drum and pneumatic transport system serve as intermediaries that handle cartridge retrieval operations, shielding operators from direct interaction with potentially contaminated samples. This intermediary automated mechanism maintains operational continuity by eliminating the need for operator presence during cartridge retrieval
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
Enables autonomous air-sampling and transport, reducing operator risk and maintaining continuous operation, while allowing for on-site analysis of samples before transport, enhancing efficiency and safety by eliminating the need for human presence during sampling and retrieval.
Implementation Method 1
a vacuum pump to pull ambient air through an air inlet tube and an air-sampling cartridge
Implementation Method 2
transport those samples away from a sampling site... transport used cartridges to a retrieval location using pneumatic pressure
Data Source
AI summary
Embodiments of the invention can sample particulates, aerosols, vapors, and/or biological components of ambient air utilizing spherical air-sampling filters. Components of the embodiments may include a hopper for holding spherical air-sampling filters, an air-sampling manifold configured to deliver an air-sampling filter from the hopper to a sampling location, and an air compressor to perform an air sampling operation and to transport a used air-sampling filter away from the sampling location. Operation of some embodiments may begin by rotating a slotted drum within the air-sampling manifold to deliver an air-sampling filter from the hopper to the sampling position. Operation may continue by using the air compressor to draw air from an ambient environment through the air-sampling filter. After sampling is complete, the air compressor may be utilized to pneumatically transport the used air-sampling filter away from the sampling position to a filter retrieval location via an output tube.