VPSA PSA Gas Separation System for Oxygen Reduction
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Solution Overview
Problem
Conventional two-stage inerting systems for reducing oxygen levels in enclosed spaces require high initial investments and ongoing costs due to the need for two separate inert gas sources, which complicates installation and increases operational expenses.
Innovation Solution
A single gas separation system that can operate in either VPSA or PSA mode, with a compressor system capable of adjusting compression levels to provide a nitrogen-enriched gas mixture, allowing for both basic and full inertization levels to be set and maintained without the need for separate sources.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If two separate inert gas sources are used for two-stage inerting, then both basic and full inertization levels can be achieved, but initial investment costs and ongoing operational costs increase
Solution Approach 1:
The patent combines two separate inert gas sources into a single inert gas source that can operate in two different modes. The first mode provides inert gas at a lower flow rate for basic inertization, while the second mode provides inert gas at a higher flow rate for full inertization. This merging reduces the number of components, lowers initial investment costs, and simplifies the overall system while maintaining the capability to achieve both inertization levels.
Solution Approach 2:
The single inert gas source is designed with multi-functionality to perform both basic inertization and full inertization tasks. By incorporating variable flow rate capability and adjustable oxygen displacement levels, the universal inert gas source can adapt to different operational requirements without needing separate dedicated sources for each function.
2Reliability
If two separate inert gas sources are used, then adequate inert gas supply for both basic and full inertization is ensured, but installation complexity and space requirements increase
Solution Approach 1:
The patent merges the functionality of two separate inert gas sources into one integrated unit. This consolidation reduces installation complexity by eliminating the need to install, configure, and maintain two separate gas source systems. The single unified system requires fewer connection points, less piping infrastructure, and simpler integration with the existing ventilation and control systems.
3Productivity
If compression degree is increased to provide more nitrogen-enriched gas mixture, then full inertization level can be achieved, but energy consumption increases
Solution Approach 1:
The patent implements dynamic operation of the compressor system, allowing it to adjust its compression degree and output flow rate based on the specific inertization requirements. During basic inertization, the compressor operates at a lower, more energy-efficient setting. When full inertization is required, the compressor dynamically increases its compression degree and output capacity. This dynamic adaptability optimizes energy consumption by matching the compressor's power output to the actual demand rather than operating at maximum capacity continuously.
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 reduces initial investments and operating costs while maintaining efficiency, as the system can efficiently switch modes to meet varying oxygen reduction demands, and is more compact and energy-efficient, allowing for reliable and user-friendly operation.
Implementation Method 1
A gas separation system which is designed to be operated either in a VPSA mode or in a PSA mode
Implementation Method 2
in which at least part of the oxygen contained in the compressed initial gas mixture is separated
Data Source
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AI summary
The invention relates to an inerting system and an inerting process for oxygen reduction, in which a predefinable oxygen content, reduced compared to normal ambient air, is established and maintained in the atmosphere of an enclosed space (2). For this purpose, the inerting system (1) comprises a compressor system (3) for compressing an initial gas mixture and a gas separation system (10) connected to the compressor system (3). In the gas separation system (10), at least a portion of the oxygen contained in the compressed initial gas mixture is separated. The gas separation system (10) is designed to be operated selectively in either a VPSA mode or a PSA mode.