Horizontal Oil Separator Chambers for Compact Helium Compression
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Solution Overview
Problem
Conventional horizontal bulk oil separators for helium compressor units in cryogenic refrigeration systems face challenges in achieving high separation efficiency and compact design, with low separation efficiency and space constraints, especially when used with scroll compressors.
Innovation Solution
A horizontal bulk oil separator with a series of separation chambers having ports for gas above and oil below the baffles, allowing impingement separation and incorporating an opto-electronic oil level sensor for precise oil level monitoring, ensuring high separation efficiency and compact size.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a conventional horizontal bulk oil separator is used, then the design is compact, but the separation efficiency is low
Solution Approach 1:
The separator is divided into multiple chambers (first chamber, second chamber, third chamber) separated by baffles. Each chamber performs a specific separation function, allowing the system to achieve high separation efficiency while maintaining a compact overall design. The segmentation enables progressive oil-gas separation through multiple stages.
Solution Approach 2:
The patent transitions from conventional vertical separation to horizontal separation by orienting the baffles and chambers horizontally. The gas flows horizontally through the chambers while oil separates vertically to the bottom, utilizing both horizontal and vertical dimensions for efficient separation in a compact footprint.
2Reliability
If oil level monitoring is not implemented, then the device complexity is reduced, but the system reliability deteriorates due to potential oil carryover to the expander
Solution Approach 1:
The patent replaces complex mechanical oil level monitoring systems with an opto-electronic sensor that uses optical fields to detect oil levels. This substitution maintains high system reliability for detecting oil carryover conditions while reducing mechanical complexity and improving response time.
Solution Approach 2:
The opto-electronic oil level sensor provides continuous feedback on the oil level in the separator. When oil begins to carry over to the expander, the sensor detects the level change and triggers a shutdown signal, creating a feedback control system that prevents damage while maintaining simple 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
The solution achieves over 99% oil removal from helium, maintaining a compact design and enabling sensitive oil level detection, ensuring the compressor operates safely by shutting down before oil reaches the cold expander, thus extending the system's design life.
Implementation Method 1
A horizontal bulk oil separator with a series of separation chambers having ports for gas above and oil below the baffles, allowing impingement separation
Implementation Method 2
incorporating an opto-electronic oil level sensor for precise oil level monitoring
Implementation Method 3
A horizontal bulk oil separator with a series of separation chambers having ports for gas above and oil below the baffles
Data Source
AI summary
A high separation efficacy, compact, bulk oil separator oriented horizontally and used with a scroll-type oil-lubricated compressor unit adapted to compressing helium. The horizontal bulk oil separator contains an integral oil reservoir and removes more than 99.9% of the oil from the helium that exits. The bulk oil separator contains successive chambers where oil separates from the gas by impingement.