Deformable Drain Shield for Aperture Erosion Protection
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Solution Overview
Problem
Drainage apertures in work-producing devices are prone to erosion, corrosion, and wear due to entrained debris, leading to increased flow and operational inefficiencies.
Innovation Solution
A drain shield with a body, stop, and plastically deformable portion is installed within the aperture, conforming to the aperture's shape through deformation, providing erosion, corrosion, and wear protection.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If a drain aperture is used to drain fluid from high-pressure to low-pressure region, then drainage flow is enabled, but the aperture becomes susceptible to erosion, corrosion, and wear from entrained debris
Solution Approach 1:
A drain shield is introduced as an intermediary component between the high-pressure region and the aperture. The shield includes a body with a passage that directs fluid flow, positioning the aperture away from direct exposure to debris-laden high-velocity flow. This mediator protects the aperture while maintaining drainage functionality.
Solution Approach 2:
The drainage system is segmented into distinct functional components: the drain shield body, the passage, and the aperture. This segmentation allows the aperture to be protected from direct exposure to harmful flow conditions while the shield body handles the brunt of debris exposure.
2Productivity
If the aperture is exposed to high-velocity fluid with entrained debris, then drainage efficiency is maintained, but erosion and wear at the aperture interface increase
Solution Approach 1:
The drain shield body serves as a mediator that intercepts debris-laden flow before it reaches the aperture. The passage within the shield body directs fluid flow in a manner that reduces direct impact on the aperture, thereby maintaining drainage efficiency while minimizing erosion and wear.
Solution Approach 2:
The shield body is positioned upstream of the aperture to cushion or absorb the impact of debris-laden flow before it reaches the aperture. This prior protection allows the aperture to operate in a less harsh environment, reducing erosion and wear while maintaining drainage function.
3Reliability
If the aperture geometry is modified to protect from debris, then erosion resistance improves, but drainage flow capability may be compromised
Solution Approach 1:
The system is divided into the shield body with its passage and the separate aperture. The passage geometry can be optimized for erosion resistance while the aperture maintains its drainage function, allowing both erosion resistance and drainage flow capability to be optimized independently.
Solution Approach 2:
The shield body acts as an intermediary that can be designed with erosion-resistant geometry while the aperture remains relatively simple and effective for drainage. The shield passage handles the complex flow management, allowing the aperture to focus on maintaining drainage flow 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
The drain shield effectively protects the aperture from erosion, corrosion, and wear, maintaining efficient drainage flow and device operation.
Implementation Method 1
The plastically deformable portion is at a second end of the body opposite the first end... deforming the plastically deformable portion to conform to the second surface of the wall
Implementation Method 2
Fluid within the high-pressure region has a higher static pressure relative to a lower static pressure within the low-pressure region, driving a drainage flow from the high-pressure region to the low-pressure region
Data Source
Figure 1A~1B
Figure 2A
Figure 2B
AI summary
A drain shield (10) can include a body (12), a stop (14), and a plastically deformable portion (16). The body (12) includes a passage (18) extending through the body (12) and along an axis (A). The stop (14) extends outward from a first end (12A) of the body (12) relative to the axis (A). The plastically deformable portion (16) is at a second end (12B) opposite the first end (12A). A casing module (28) can include a wall (22) separating a high-pressure region (24) from a low-pressure region (26) fluidly connected by an aperture (20) extending through the wall (22). The drain shield (10) is insertable through the aperture (20) and deformable to enclose the aperture (20).