Ceramic Membrane Module Drive Plate Sealing
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Solution Overview
Problem
Ceramic membrane modules are prone to mechanical damage due to the sensitivity of face end seals and require complex support systems, making routine inspections and maintenance challenging, especially since conventional housings do not adequately protect or shield these seals.
Innovation Solution
A ceramic membrane module design that incorporates a drive plate assembly with sealing pads and spacer pads to apply force and seal the capillaries, allowing for potting material to be applied without blocking the capillaries, thereby protecting the face end seal and improving durability, and using a recessed configuration to reduce mechanical stress.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conventional housings are used to contain the membrane module, then the module structure is simple, but the face end seal is vulnerable to mechanical damage due to lack of protection and shielding
Solution Approach 1:
The membrane module is recessed within the housing, creating a nested configuration where the housing walls provide protective shielding around the vulnerable face end seal. This nesting arrangement allows the housing structure to protect the seal without requiring separate protective components, thereby improving reliability while maintaining reasonable structural simplicity.
Solution Approach 2:
The housing design incorporates a recessed zone that creates a buffer space around the face end seal before external mechanical forces can reach it. This beforehand cushioning effect protects the seal from direct mechanical damage during routine handling and inspection, improving durability without adding complex protective mechanisms.
2Stability of the object's composition
If the membrane is recessed inside the housing for support, then mechanical stability is improved, but potting material may flow over the end of the module and block capillaries
Solution Approach 1:
A sealing pad is introduced as an intermediary component between the membrane and the housing end. This sealing pad prevents potting material from flowing over the module end and blocking capillaries, while still allowing the membrane to be recessed for mechanical support. The sealing pad acts as a barrier that maintains both stability and capillary accessibility.
Solution Approach 2:
The sealing structure is segmented into distinct components: the sealing pad, the spacer pad, and the drive plate assembly. This segmentation allows each component to perform its specific function - the sealing pad prevents potting material ingress, while the spacer and drive plate provide mechanical support and positioning. This divided approach resolves the contradiction between stability and capillary protection.
3Ease of operation
If conventional housings are used without protective shielding, then manufacturing is simpler, but routine inspections require complex support systems and are difficult to perform
Solution Approach 1:
The recessed membrane configuration creates a nested structure where the housing walls naturally provide shielding and access pathways for inspection. This nesting design allows inspection tools and procedures to access the membrane end without requiring complex external support systems, improving ease of operation while maintaining relatively simple housing manufacturing.
4Reliability
If the face end seal is exposed at the housing end, then assembly is simpler, but the seal lacks protection and shielding from mechanical damage
Solution Approach 1:
The sealing pad serves as an intermediary protective layer between the exposed face end seal and potential mechanical damage sources. This sealing pad is part of the drive plate assembly mechanism, providing protection without requiring a completely enclosed complex structure. It enables seal protection while maintaining reasonable assembly simplicity.
Solution Approach 2:
The drive plate assembly with sealing pad creates a beforehand cushioning effect by positioning protective elements before the seal is exposed to mechanical stresses during operation and inspection. This cushioning arrangement protects the seal without requiring complex protective housings, improving reliability while maintaining assembly simplicity.
Data Source
AI summary
A method for forming a ceramic membrane module system includes disposing at least one membrane within a housing, disposing at least one sealing pad adjacent to the membrane, and disposing at least one drive plate assembly adjacent to the at least one sealing pad. The method further includes coupling the at least one drive plate assembly with the housing, applying force to the sealing pad with the drive plate assembly, sealing the capillaries of a membrane end with the at least one sealing pad and forming a seal between the at least one sealing pad and the membrane, and disposing potting material into the housing without plugging more than 15% of the capillaries with the potting material.