Deformable Partition Wall Seal for Polymer Filter Candles
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Solution Overview
Problem
Filtration devices for polymers face issues with high pressure causing polymer to harden and form brittle particles, which contaminate the filtered fluid and clog spinnerets, and existing solutions like porous seals are expensive and require frequent replacement.
Innovation Solution
An elongate mesh pack with a deformable partition wall that seals with a hollow core tube without additional seals, allowing for elastic deformation to create a seal under radial force, preventing polymer hardening and allowing for easy disassembly and cleaning.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If high pressure is used during filtration to handle viscous polymer fluid, then filtration capability is improved, but polymer is forced into interstices and hardens causing black contamination
Solution Approach 1:
The invention removes the problematic interstices between components by designing a tight-fit structure where the core tube directly contacts the filter candle body, eliminating the space where polymer could accumulate and harden under pressure
Solution Approach 2:
Instead of trying to prevent polymer entry into interstices through seals or gaps, the invention inverts the approach by designing a structure without interstices, where the core tube fits tightly against the filter candle body, making polymer accumulation impossible
2Object-generated harmful factors
If porous seals are used to prevent polymer hardening in interstices, then black contamination is reduced, but manufacturing cost increases significantly
Solution Approach 1:
The invention eliminates the need for porous seals by removing the interstices that would require sealing, thereby avoiding the high manufacturing costs associated with expensive metal powder or fiber-based porous seal materials
Solution Approach 2:
Instead of using expensive porous seals that may need frequent replacement, the invention employs a simple, cost-effective tight-fit structural design that prevents polymer hardening without requiring additional consumable sealing components
3Object-generated harmful factors
If additional porous seals are added to prevent polymer hardening, then contamination is reduced, but device complexity increases
Solution Approach 1:
The invention extracts and removes the unnecessary seal components from the filtration device, achieving contamination prevention through a simplified tight-fit structure between the core tube and filter candle body
Solution Approach 2:
The invention merges the core tube and filter candle body into a tightly integrated assembly where the core tube fits directly against the filter candle, eliminating the need for separate seal components and reducing overall device complexity
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 solution reduces the risk of polymer particle formation, eliminates the need for expensive supplementary seals, and extends the filter apparatus' lifespan by up to 20-30% with reduced yield loss during cleaning.
Implementation Method 1
A partition wall suitable to deform towards the recess under radial force is provided between the recess and the end fitting opening
Data Source
AI summary
An elongate mesh pack for filtering a fluid defines a mesh pack axial opening. The mesh pack comprises a filter medium for filtration of the fluid and has an end fitting securely fixed to the filter medium, the end fitting providing a first extremity of the mesh pack. The end fitting has an inner surface defining an end fitting opening through the end fitting, the end fitting opening being co-axial with the axial opening of the mesh pack. The end fitting comprises an annular recess encompassing the end fitting opening. A partition wall suitable to deform towards the recess under radial force is provided between the recess and the end fitting opening, the partition wall forming at least part of the inner surface.