Switchgear Diffuser for Fluid Dispersal and Cooling
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Solution Overview
Problem
Existing pressure relief systems in switch cabinets lack effective dispersal and cooling mechanisms for large fluid flows, particularly during electrical faults, which can lead to damage and particle dispersal issues.
Innovation Solution
A diffuser system with a mechanically stabilizing base plate and a meshwork of second openings, arranged transversely and parallel to the fluid flow, is integrated into the pressure relief duct to scatter and cool the fluid flow, featuring a sawtooth embossing for enhanced turbulence and cooling effects.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Speed
If a diffuser is pivotably mounted to increase cross-section for rapid fluid discharge, then the discharge speed is improved, but the dispersal effect is lost
Solution Approach 1:
The diffuser surface is segmented into multiple regions with different opening orientations. The first region has openings oriented to disperse fluid laterally, while the second region has openings oriented for axial discharge. This segmentation allows both dispersal and rapid discharge functions to coexist in a single stationary diffuser structure.
Solution Approach 2:
Different regions of the diffuser are given different local qualities in terms of opening orientation and distribution. The first region provides lateral dispersal capability while the second region provides axial discharge capability. This local differentiation resolves the contradiction by allowing each region to optimize for its specific function.
2Object-generated harmful factors
If a stationary diffuser with multiple openings is used to disperse fluid flow, then the dispersal effect is improved, but the discharge cross-section is limited
Solution Approach 1:
The diffuser is divided into two functional regions: a first region with openings for lateral dispersal and a second region with openings for axial discharge. This segmentation enables the diffuser to provide both wide dispersal coverage and a large effective discharge cross-section simultaneously.
Solution Approach 2:
The diffuser utilizes both radial (lateral) and axial dimensions for fluid discharge. The first region directs fluid radially outward for dispersal, while the second region directs fluid axially for high-volume discharge. This multi-dimensional approach increases the effective discharge cross-section while maintaining dispersal capability.
3Stability of the object's composition
If the diffuser is made stationary with fixed openings, then the structural integrity is improved, but the adaptability to varying fluid flow conditions is reduced
Solution Approach 1:
The stationary diffuser incorporates different local opening patterns to handle varying flow conditions. The first region with laterally oriented openings handles dispersal requirements, while the second region with axially oriented openings handles high-volume discharge requirements. This local quality differentiation provides adaptability within a fixed structural framework.
Solution Approach 2:
The single stationary diffuser structure performs multiple functions: it disperses fluid laterally, discharges fluid axially, and maintains structural integrity. By integrating both dispersal and discharge functions into one universal component, the system achieves adaptability to varying flow conditions without compromising structural stability.
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 diffuser system effectively disperses and cools the fluid flow, slowing down particles and reducing damage by increasing the surface area for efficient turbulence and cooling, while maintaining structural integrity under pressure changes.
Implementation Method 1
The diffuser system effectively disperses and cools the fluid flow, slowing down particles and reducing damage by increasing the surface area for efficient turbulence and cooling
Data Source
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AI summary
The invention relates to a switchgear cabinet (3, 4), which is equipped with a pressure relief channel (12a, 12b) for discharging a fluid stream (15). A diffuser (16, 16a, 17, 17a) is arranged in the pressure relief channel (12a, 12b The diffuser (16, 16a, 17, 17a) has a mechanically stabilising base plate (18) having multiple first openings (24), which are covered by a meshwork (19) having multiple second openings (25).