Grid Flame Trap Filter for Wider Thermal Input Distribution
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Solution Overview
Problem
Existing flame trap filters do not effectively distribute thermal input over a large surface area, limiting their pressure relief effectiveness and requiring cumbersome processing of explosion-protected housings.
Innovation Solution
A flame trap filter with a grid structure formed by intersecting web sections or a laid scrim, which divides the pressure relief flow into partial flows, distributing thermal input over a larger area and enhancing the effectiveness of the pressure relief body without the need for additional processing of the housing.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conventional flame trap filters are used, then the housing can be processed simply, but the thermal input is not distributed over a large surface area reducing pressure relief effectiveness
Solution Approach 1:
The pressure relief body is segmented into multiple grid openings arranged in a grid pattern, which divides the thermal input into multiple separate flow paths. This segmentation increases the effective surface area for heat distribution while maintaining a simple integrated housing structure without requiring additional processing steps.
Solution Approach 2:
The invention transitions from a conventional flat or simple curved filter surface to a three-dimensional grid structure with openings distributed across the surface. This dimensional change allows thermal input to be distributed over a larger effective area while the grid structure itself is formed as an integral part of the housing, avoiding additional processing complexity.
2Reliability
If the thermal input surface area is increased, then the pressure relief effectiveness is improved, but the filter structure becomes more complex
Solution Approach 1:
The filter surface is segmented into multiple discrete grid openings rather than using a continuous or densely meshed structure. This segmentation achieves large effective thermal distribution area through fewer, larger openings arranged in a grid pattern, reducing structural complexity compared to fine-mesh alternatives.
Solution Approach 2:
Different regions of the filter surface are provided with grid openings of specific sizes and distributions optimized for local thermal input conditions. This local optimization allows effective heat distribution without requiring uniform complexity across the entire filter surface.
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
The grid structure improves the thermal input distribution and effectiveness of the pressure relief body by subdividing the pressure relief flow, increasing the surface area for thermal input and eliminating the need for additional processing of the housing.
Implementation Method 1
By means of the grid structure, flooding channels or screens are formed. The flow through the filter is divided into partial flows.
Implementation Method 2
the at least one grid structure defines grid openings that are limited by web sections intersecting one another
Data Source
AI summary
A flame trap filter including a grid structure, wherein the grid structure determines grid openings which are bordered by intersecting strip sections, and/or wherein the grid structure is formed by a laid scrim. A method for producing a grid structure of a flame trap filter includes the step of allowing a substance to solidify on a substrate, in order to form at least one strip section of the grid structure. Alternatively or in addition, the method includes the step of compressing a material for the flame trap filter or a semi-finished product of the flame trap filter at points, e.g. by mechanically deforming the material or the semi-finished product, in order to form at least one strip section of the grid structure.