Flexible Sealing Structure With Variable Flow Resistance
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Solution Overview
Problem
Existing solutions for mechanical seals and flow resistances in pipes lack the ability to efficiently vary and adapt to different fluid flow conditions, with limited static and dynamic flexibility, and do not effectively integrate sealing and flow control functions.
Innovation Solution
A structure composed of interconnected elements that can be arranged movably relative to each other, connected via a rotary drive, allowing for variable flow resistance configuration through additive manufacturing techniques, such as selective laser melting, to form a flexible sealing structure that can change flow resistance and sealing effectiveness based on rotation and external forces.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a mechanical seal with fixed sealing surfaces is used, then sealing reliability is improved, but adaptability to different fluid flow conditions deteriorates
Solution Approach 1:
The patent applies the dynamics principle by transforming the fixed sealing surfaces into movable elements that can adapt to different operating conditions. The mechanical seal components are designed to move relative to each other, allowing the sealing gap and contact pressure to be dynamically adjusted based on fluid flow conditions, thus maintaining reliable sealing across varying operational parameters.
Solution Approach 2:
The patent implements parameter changes by enabling variation in the sealing gap distance and contact pressure between sealing surfaces. Through controlled movement of sealing elements, the physical parameters of the sealing interface can be changed to optimize performance for different fluid flow rates, pressures, and velocities, thereby achieving both reliability and adaptability.
2Ease of manufacture
If a fixed flow resistance structure is used in pipes, then flow control is simplified, but ability to vary flow resistance deteriorates
Solution Approach 1:
The patent applies segmentation by dividing the flow resistance structure into multiple movable elements or segments that can independently adjust their positions. This segmentation allows the overall flow resistance to be varied by changing the configuration of individual segments, maintaining structural simplicity while enabling adaptability to different flow requirements.
Solution Approach 2:
The patent implements dynamics by designing the flow resistance structure with movable components that can change their configuration in response to varying fluid flow conditions. The structure transitions from a static, fixed design to a dynamic system that can actively adjust flow resistance, thereby achieving versatility without significantly complicating the manufacturing process.
3Reliability
If traditional mechanical seals are used, then sealing function is achieved, but space requirement and maintenance needs increase
Solution Approach 1:
The patent applies flexible shells and thin films by utilizing elastic sealing elements or membrane-like structures that can deform to create effective sealing. These flexible components achieve reliable sealing with minimal space requirements compared to traditional rigid mechanical seal assemblies, reducing the volume occupied by moving parts while maintaining sealing functionality.
Solution Approach 2:
The patent implements self-service through self-adjusting sealing mechanisms that automatically adapt to wear, pressure changes, or misalignment without requiring external intervention. The sealing elements are designed to self-regulate their position and contact pressure, reducing maintenance needs and extending service intervals while maintaining effective sealing with compact dimensions.
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
Enables rapid, cost-effective, and customizable adjustment of flow resistance and sealing performance in fluid flows, providing enhanced control over fluid dynamics and sealing efficacy, particularly in centrifugal pumps and pipes, by using a structure that can be configured in multiple dimensions and adapted through rotation.
Implementation Method 1
In operation, two sealing surfaces slide upon one another and are pressed against one another by hydraulic and mechanical forces.
Implementation Method 2
In operation, two sealing surfaces slide upon one another and are pressed against one another by hydraulic and mechanical forces.
Implementation Method 3
A structure composed of interconnected elements that can be arranged movably relative to each other, connected via a rotary drive, allowing for variable flow resistance configuration through additive manufacturing techniques
Data Source
AI summary
A structure includes elements. The elements are interconnected. The elements are also arranged movably relative to one another. The structure is arranged in a fluid in order to change the flow resistance.