Honeycomb Filter Module Transverse Gas Flow
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Solution Overview
Problem
Existing hot gas filtration systems require large volumes of filter area and numerous filter candles due to limited surface area per volume, making them inefficient for high volume flow rates.
Innovation Solution
The use of honeycomb structured filter modules with regularly interposed clean gas ducts and a clean gas collecting and discharge arrangement that deflects gas flow transversely, providing a compact and efficient filtration system with high packing density.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Area of stationary object
If traditional filter candles are used with limited surface area per volume, then the filtration system can handle standard volume flows, but the system requires very big filter vessels or several vessels operated in parallel for high volume flow rates
Solution Approach 1:
The patent transitions from traditional radial flow through filter candles to axial flow through filter elements. This dimensional change in gas flow direction enables much higher packing density of filter elements within the same vessel volume, dramatically increasing the filter area per volume ratio and allowing high volume flow rates to be handled in a single compact vessel
Solution Approach 2:
The patent employs filter elements with optimized porous structures that provide high surface area for filtration. The porous material is arranged in a honeycomb-like pattern with regularly interposed clean gas ducts, maximizing the filter area within the available volume while maintaining effective particulate matter discharge capabilities
2Productivity
If thousands or ten thousands of filter candles are incorporated to achieve higher volume flows, then the volume flow rate increases, but the device complexity and system size increase significantly
Solution Approach 1:
The patent merges multiple filtration functions into a single integrated filter module design. The module combines filter elements, clean gas ducts, and discharge arrangements in one compact unit with axial flow configuration, replacing the need for thousands of separate filter candles and simplifying the overall system architecture while maintaining high productivity
Solution Approach 2:
By changing from radial to axial flow configuration, the patent enables much higher packing density within the same space, allowing a single vessel to handle high volume flow rates without requiring thousands of individual filter candles, thus reducing device complexity
3Ease of operation
If filter elements are arranged with closed ends at the discharge side, then particulate matter discharge is facilitated, but the clean gas flow must be effectively redirected without creating dead zones
Solution Approach 1:
The patent applies different structural characteristics to different regions of the filter module. The closed ends of filter elements at the discharge side facilitate particulate matter discharge, while regularly interposed clean gas ducts with specific geometric arrangements ensure uniform clean gas flow distribution and prevent dead zones, optimizing both discharge efficiency and flow characteristics
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 configuration significantly increases the filter area per volume, allowing for more efficient filtration with fewer modules, reducing the size and complexity of filtration systems while maintaining effective particulate matter discharge and cleaning capabilities.
Implementation Method 1
a plurality of filter elements (14) having a longitudinal, porous tubular wall part (16) with an open end (18) and a closed second end (20)
Implementation Method 2
a plurality of clean gas ducts (22) which are substantially coextensive with, oriented parallel to and regularly interposed between the filter elements (14)
Implementation Method 3
At the closed ends of the filter elements, i.e., the discharge side of the filter module, clean gas flow is deflected and directed transverse to the vertical of the discharge side surface of the unit(s)
Data Source
Figure 1A
Figure 1B
Figure 2
AI summary
A filter module (10), especially for gas filtration purposes provides an improved ratio of filter area per volume for the filter system comprising the filter module (10) and a high packing density in the filter system. The filter module (10) comprises one or more block-shaped units (12), each unit comprising a plurality of filter elements (14) and clean gas ducts (22), and a clean gas collecting and discharge arrangement (32) at the discharge side (30) of the block-shaped unit (12). The clean gas collecting and discharge arrangement (32) extends across all of the clean gas outlets (24) of the clean gas ducts (22) of the one or more units (12), said clean gas collecting and discharge arrangement (32) comprising one or more clean gas channels in fluid communication with said clean gas outlets (24) of the clean gas ducts (22) deflecting and directing the clean gas flow from the open ends (24) of the clean gas ducts (22) in a direction transverse to the vertical of the discharge side surface (30) to a clean gas discharge opening (36) of the filter module (40).