Systems for dehumidifying air and methods of assembling the same
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing dehumidification systems for gas detection systems in enclosures, such as those associated with gas turbines, require air compression, which increases complexity and cost, and can lead to ice formation due to low temperatures, disrupting system operation and requiring unscheduled shutdowns.
Innovation Solution
A dehumidifier assembly that uses an extraction chamber coupled with a conduit sealed within the chamber, where ambient air is circulated to facilitate heat transfer and condense moisture from sampled air without compressing the air, providing dehumidified air at atmospheric pressure to the gas detection device.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If air compression is used for dehumidification, then moisture can be condensed and removed from sampled air, but system complexity and cost increase
Solution Approach 1:
The patent extracts the compression function from the dehumidification system by using a separate ambient air source to provide cooling, rather than compressing the sampled air itself. This separates the cooling function from the sampling system, reducing complexity while maintaining dehumidification effectiveness
Solution Approach 2:
The patent introduces ambient air as an intermediary cooling medium that transfers heat from the sampled air to the environment. This intermediary approach avoids direct compression of the sampled air while achieving the same dehumidification effect through heat exchange
2Reliability
If air compression is used for dehumidification, then moisture can be condensed and removed from sampled air, but cost increases
Solution Approach 1:
The system uses freely available ambient air as the cooling source, eliminating the need for expensive compression equipment. The ambient air self-provides the cooling function that would otherwise require energy-intensive compression, significantly reducing system cost
3Adaptability or versatility
If low temperature air sampling is performed, then gas detection can be conducted in cold environments, but ice formation disrupts operation
Solution Approach 1:
The patent applies preliminary anti-action by introducing ambient air cooling before the sampled air can form ice. The cooling effect is established in advance through the heat exchange process, preventing ice formation before it can disrupt system operation
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 solution effectively prevents ice formation in gas detection systems, reduces system complexity and cost, and maintains operation without the need for air compression, ensuring continuous functionality.
Implementation Method 1
The conduit is configured to facilitate heat transfer from the sample air flow to the environmental air flow
Implementation Method 2
The circulator is operable to create a negative pressure in the conduit, such that an environmental air flow is drawn through the environmental air inlet into the conduit
Implementation Method 3
A dehumidifier assembly that uses an extraction chamber coupled with a conduit sealed within the chamber, where ambient air is circulated to facilitate heat transfer and condense moisture from sampled air
Data Source
AI summary
A dehumidifier assembly includes an extraction chamber coupled in flow communication with a sample air inlet, a sample air outlet, and a sample drip opening. The extraction chamber is configured to receive a sample air flow therethrough at substantially atmospheric pressure from the sample air inlet to the sample air outlet. The dehumidifier assembly also includes a conduit positioned within the extraction chamber. The conduit is coupled in flow communication with an environmental air inlet and an environmental air outlet, and is sealed with respect to the extraction chamber. The dehumidifier assembly further includes a circulator coupled to the environmental air outlet. The circulator is operable to create a negative pressure in the conduit, such that an environmental air flow is drawn through the environmental air inlet into the conduit. The conduit is configured to facilitate heat transfer from the sample air flow to the environmental air flow.