Subterranean Debris Separator Using Curved Plate Tabs
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Solution Overview
Problem
Existing subterranean debris removal devices face challenges in efficiently separating finer particles due to clogging issues caused by turbulence and abrupt flow turns, which can lead to flow interruptions and incomplete separation, especially when larger particles are not effectively captured.
Innovation Solution
The design incorporates extending tabs at the lower ends of parallel plates within the debris removal device, allowing for a larger radius turn and reduced turbulence, enabling better separation of solids from liquids without the need for an internal screen, as the flow can cross over and make a smoother 180-degree turn, effectively capturing smaller particles.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If an internal screen is used to capture finer particles, then particle removal efficiency is improved, but flow interruptions occur due to clogging
Solution Approach 1:
The patent removes the internal screen component from the debris removal device. Instead of using a screen to capture particles, the invention relies on the eductor's suction capability and the flow dynamics created by the housing geometry to separate and remove particles of various sizes, thereby eliminating clogging issues while maintaining removal efficiency
Solution Approach 2:
The patent changes the flow parameters by creating specific flow patterns through the housing geometry and plate configurations. The flow is directed to create regions of different velocities and pressures that enable particle separation without requiring a screen, allowing continuous flow operation
2Device complexity
If abrupt 180-degree turns are used to redirect flow, then device complexity is reduced, but turbulence increases causing re-entrainment of solids
Solution Approach 1:
The patent uses curved surfaces and gradual transitions instead of abrupt angular turns. The housing includes curved walls and the plates are positioned to create smooth flow transitions, reducing turbulence and preventing re-entrainment of separated solids while maintaining effective particle removal
Solution Approach 2:
The patent introduces a third dimension to the flow path by using inclined plates and three-dimensional housing geometry. This allows the flow to transition smoothly through spatial arrangement rather than relying solely on two-dimensional sharp turns, reducing turbulence while achieving the necessary flow redirection
3Ease of operation
If parallel plates are used to define passages, then flow organization is improved, but sharp radius bends are required causing wide flow streams that hinder solids separation
Solution Approach 1:
The patent modifies the plate design to include curved surfaces and gradual transitions instead of sharp corners. The passages between plates are designed with curved flow paths that maintain flow organization while enabling tighter bends and narrower flow streams, improving solids separation capability
Solution Approach 2:
The patent applies different geometric characteristics to different regions of the flow path. The plates and housing are designed with varying geometries in different sections - some regions have parallel plates for flow organization while other regions have curved surfaces for smooth transitions and tighter bends, optimizing both flow organization and separation capability
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 design enhances debris separation efficiency to the point where finer particles down to 0.050″ can be removed, reducing turbulence and re-entrainment, allowing for the optional removal of the internal screen, and improving overall particulate collection in confined spaces.
Implementation Method 1
an eductor to draw debris laden fluid into an inlet tube
Implementation Method 2
debris laden flow exits the top 16 of the inlet tube 12 and hits the curved wall 18 for a reversal in the flow direction
Implementation Method 3
the debris will separate into annular space 14 as the fluid drawn by an eductor
Data Source
AI summary
A debris removal device for subterranean use features a debris laden inlet tube within a housing to define a debris collection space at the lower end of the housing. An eductor draws the debris laden fluid to the top of the inlet tube where the flow stream is returned to a downhole direction with discrete passages formed between the housing and the inlet tube by spaced parallel plates. The plates feature extending tabs on diametrically opposed lower ends of the plates. As a result flow heading back downhole can release debris and turn back uphole in passages defined between the outside of the plates and the inside wall of the housing. The tabs allow the flow turning uphole to make a greater radius turn because of a crossing over effect created by the tabs. There is less turbulence and narrower width to the flowing stream going uphole.