Nested Gas Filter Sealing for Leak-Free Element Exchange
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing gas filter systems face issues with leakage flows due to manufacturing tolerances, leading to reduced operational efficiency and complex filter element exchange, particularly in compact filtration systems with multiple elements.
Innovation Solution
A gas filter system design featuring end plates with seal protrusions that engage axially and optionally radially to ensure tight sealing between filter elements, allowing for easy exchange and enhanced operational function.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If filter elements are sealed by gluing to prevent leakage flows, then sealing reliability is improved, but ease of repair deteriorates due to complicated filter element exchange
Solution Approach 1:
The filter element is divided into separable components (filter element and end plate) connected by detachable sealing elements. The sealing protrusion and sealing groove can be assembled and disassembled independently, allowing filter element replacement without damaging the housing or previous components.
Solution Approach 2:
A detachable sealing element (sealing protrusion/groove combination) acts as an intermediary between the filter element and housing. This intermediary provides reliable sealing during operation but can be easily removed for maintenance, bridging the gap between sealing reliability and ease of repair.
2Productivity
If multiple filter elements are installed in a compact housing, then productivity is improved through high filtration degree, but device complexity increases due to multiple sealing actions
Solution Approach 1:
The filter element is nested within the housing with the sealing protrusion integrated into the filter element structure and the sealing groove integrated into the housing structure. This nested configuration allows compact arrangement of multiple filter elements while simplifying the overall sealing system.
Solution Approach 2:
The sealing function is merged with the structural components (end plate and housing) through integrated sealing protrusions and grooves. This combines sealing action with the existing structural elements, reducing the need for separate sealing components and simplifying the overall device complexity.
3Reliability
If filter elements are sealed with tight tolerances to prevent leakage, then reliability is improved, but manufacturing precision requirements increase
Solution Approach 1:
The sealing protrusion and groove design creates a flexible sealing interface that can accommodate manufacturing tolerances. The sealing mechanism relies on the deformation and compression of sealing elements rather than rigid precision fitting, allowing reliable sealing with standard manufacturing tolerances.
Data Source
AI summary
A gas filter system has an outer filter element with a first end plate, a second end plate, and a first filter medium arranged between the first and the second end plates. An inner filter element with a third end plate, a fourth end plate, and a second filter medium arranged between the third and the fourth end plates is provided. The first end plate and the third end plate each have an opening. The first end plate surrounds the third end plate. The first end plate has a first seal protrusion protruding in an axial direction of the gas filter system. The third end plate has a second seal protrusion protruding in the axial direction of the gas filter system. For sealing the third end plate and the first end plate relative to each other, the first seal protrusion and the second seal protrusion engage each other.