Air Oil Separator Pre-Separator Element Design
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing air/oil separators face issues with oil saturation of coalescing media, leading to increased pressure drop and high oil carryover, as the coalescing media becomes saturated and the pre-separator can mechanically detach, causing operational inefficiencies and potential blockages.
Innovation Solution
An improved air/oil separator design featuring a pre-separator element integrated within the assembly, secured to the head flange and end plate, using glass fiber and fleece media to effectively remove oil from the gaseous stream before it reaches the main separator elements, reducing the risk of mechanical detachment and enhancing oil removal efficiency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If coalescing media is used to remove oil from compressed air, then oil removal performance is improved, but the media becomes saturated leading to increased pressure drop
Solution Approach 1:
The separator is divided into multiple functional zones with different media types: a pre-separator section with one media type and a main separator section with another media type. This segmentation allows each zone to handle specific aspects of oil removal, preventing saturation of any single media type and maintaining low pressure drop across the entire system.
Solution Approach 2:
Different regions of the separator are assigned different media properties optimized for their specific function. The pre-separator uses media suited for initial oil capture, while the main separator uses media optimized for final polishing. This local optimization ensures efficient oil removal throughout the flow path without uniform saturation.
2Reliability
If coalescing media is used to remove oil from compressed air, then oil removal performance is improved, but oil saturation of the media increases
Solution Approach 1:
The separator is divided into multiple functional zones with different media types: a pre-separator section with one media type and a main separator section with another media type. This segmentation allows each zone to handle specific aspects of oil removal, preventing saturation of any single media type and maintaining low pressure drop across the entire system.
Solution Approach 2:
The pre-separator media, which becomes saturated with oil first, can be easily removed and replaced without affecting the main separator media. This allows selective disposal of the saturated pre-separator element while preserving the main separator's effectiveness, managing oil saturation systematically.
3Ease of manufacture
If pre-separator is not integrated properly, then assembly is simpler, but pre-separator may mechanically detach during operation
Solution Approach 1:
The pre-separator and main separator are designed as integrated components that work together as a single assembly. The pre-separator is positioned and secured within the main separator housing, ensuring mechanical stability during operation while maintaining a unified structure that is relatively simple to manufacture and install.
Solution Approach 2:
The pre-separator element is nested within the main separator assembly, fitting into a dedicated space within the housing. This nested arrangement ensures the pre-separator remains securely positioned during operation while allowing both elements to be installed as a coordinated unit.
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 integrated pre-separator significantly reduces oil saturation and differential pressure drop across the air/oil separator, ensuring improved oil removal performance and preventing mechanical detachment, thus enhancing the operational efficiency and reliability of the separator.
Implementation Method 1
a pre-separator element is secured in a position proximate to and outboard of the second separator element... The pre-separator and separator elements together are operative to remove oil from the gaseous stream
Implementation Method 2
The first and second support members define a first annular gap. The second support member and the outer jacket define a second annular gap... The oil laden gaseous stream enters the assembly through the openings in the outer jacket
Data Source
AI summary
An improved air/oil separator assembly for removal of oil from a gaseous stream is disclosed. The air/oil separator includes a head flange and an end plate positioned in a spaced-parallel relationship. A first and a second elongated support member and an outer jacket are concentrically arranged and secured along opposing ends to the head flange and end plate. A first separator element is secured in a position proximate to and outboard of the first support member and a second separator element is secured in a position proximate to and outboard of the second support member. A pre-separator element is secured in a position proximate to and outboard of the second separator element but inboard of the outer jacket. The pre-separator and separator elements are operative to remove oil from the gaseous stream. The pre-separator improves oil removal performance by removing a significant amount of oil before it reaches the separator elements.