Bowl-Shaped Shield Separator for Helical Gas Flow Control
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Solution Overview
Problem
Existing separator assemblies for compressed gas systems experience high pressure drops and inefficiencies due to random rebound of helical gas flow, leading to re-entrainment of liquid and reduced separating properties.
Innovation Solution
A separator assembly with a bowl-shaped shield that accelerates and directs helical gas flow back towards the outlet, combined with a roughened internal side wall and circular shield wall to maintain centrifugal flow and minimize pressure drop, preventing liquid re-entrainment.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If a flat shield is used in the separator assembly, then the structure is simple, but the helical gas flow rebounds randomly causing high pressure drop and reduced separating properties
Solution Approach 1:
The shield is designed with a bowl-shaped curved surface instead of a flat surface. This curvature allows the helical gas flow to follow the contour and be redirected smoothly back toward the outlet, preventing random rebound and maintaining flow coherence, thereby reducing pressure drop while preserving separating properties
2Device complexity
If a flat shield is used in the separator assembly, then the structure is simple, but the helical gas flow rebounds randomly causing reduced separating properties and liquid re-entrainment
Solution Approach 1:
The bowl-shaped curved surface of the shield maintains the coherence of the helical gas flow by providing a smooth redirecting path. This prevents random rebound that would disrupt the separation process and cause liquid re-entrainment, thereby improving reliability of separating properties
Solution Approach 2:
The shield's bowl shape is designed to replicate and maintain the helical flow pattern generated by the inlet. By copying the rotational characteristics of the incoming flow, the shield directs the gas smoothly toward the outlet without disrupting the centrifugal separation mechanism
3Loss of energy
If the shield directs helical flow back toward outlet in a uniform manner, then pressure drop is reduced, but the shield geometry becomes more complex
Solution Approach 1:
The bowl-shaped geometry provides a natural, continuous curved surface that guides the helical flow uniformly back toward the outlet. This single integrated curved form achieves flow direction without requiring multiple components or complex mechanical structures, balancing geometric complexity with energy efficiency
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 reduces pressure drop across the separator assembly, enhances separating properties, and prevents liquid re-entrainment, resulting in improved efficiency and reduced operating costs.
Implementation Method 1
water separators which utilise centrifugal forces caused by a helically flowing gas stream to separate bulk liquid, such as water, from the gas stream
Implementation Method 2
The shield acts to quell the turbulent air flow so as to create a 'quiet space' between itself and the lower end. This quiet space helps to prevent liquid becoming re-entrained in the gas stream
Data Source
AI summary
A separator assembly for removing material that is entrained in a gas stream. The separator assembly comprises a housing having inlet and outlet ports for the gas from which material is to be removed. The inlet and outlet ports are located toward the upper end of the housing. A flow director is positioned so that gas flowing into the housing flows over the flow director so that the incoming gas is made to follow a generally helical path within the housing. The separator assembly also comprises a shield which extends across the housing towards the lower end thereof so as to leave a collection space between it and the lower end in which material that is separated from the gas stream can collect. There is at least one opening in or around the shield through which the material can flow past the shield into the collection space. The face of the shield which is directed towards the upper end of the housing is bowl-shaped.