Frustoconical Filtration Element Reducing Pressure Drop
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Conventional air filtration systems experience high pressure drops, vortex formation, and increased resistance due to abrupt gas flow paths, which hinder their performance and efficiency.
Innovation Solution
A particulate filtration system with a frustoconical-shaped filtration element and housing, featuring an annular-shaped passage that gradually transitions gas flow velocity, reducing face velocity and differential pressure across the filter element while increasing flow velocity at the outlet, thereby minimizing pressure drops and vortex formation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If a conventional cylindrical filter element with flat seal plate and outlet pipe is used, then the system structure is simple, but the gas flow makes hard right turns and forms vortexes causing high pressure drop and increased resistance
Solution Approach 1:
The patent applies curvature by replacing the conventional flat seal plate with a frustoconical seal plate and the straight outlet pipe with a frustoconical outlet passage. This curved geometry gradually transitions the gas flow direction, eliminating hard right turns and reducing vortex formation, thereby decreasing pressure drop and energy loss while maintaining system structural simplicity
Solution Approach 2:
The patent changes the geometric parameters of the seal plate and outlet passage from flat/straight to frustoconical shapes. This parameter change modifies the flow path characteristics, allowing gradual flow direction change and reducing flow resistance, thus resolving the contradiction between simple structure and low pressure drop
2Ease of manufacture
If a conventional outlet pipe with flat seal plate is used, then the manufacturing is simple, but the gas flow is quickly compressed through outlet orifice creating static resistance and pressure drop
Solution Approach 1:
The frustoconical outlet passage replaces the conventional flat outlet orifice, creating a curved flow path that gradually expands the gas flow rather than quickly compressing it. This curved geometry reduces flow velocity and minimizes static resistance, lowering pressure drop while remaining manufacturable
Solution Approach 2:
The patent changes the outlet passage geometry from a flat orifice to a frustoconical shape with varying cross-sectional area. This parameter change transforms the flow compression from abrupt to gradual, reducing the pressure drop across the outlet while maintaining ease of manufacture through standard forming processes
3Loss of energy
If a conventional cylindrical filter element is used, then the face velocity is high causing high differential pressure across the filtration element, but changing to frustoconical shape increases manufacturing complexity
Solution Approach 1:
The frustoconical filtration element with curved surfaces gradually transitions the gas flow velocity, reducing face velocity across the filter media. This curved geometry lowers differential pressure across the element while the frustoconical shape can be manufactured using standard forming techniques, balancing complexity reduction with performance improvement
Solution Approach 2:
The patent changes the filtration element geometry from cylindrical to frustoconical, modifying the flow distribution parameters. This parameter change reduces face velocity and differential pressure across the filter media, and the frustoconical shape remains manufacturable through conventional processes
4Device complexity
If a conventional outlet pipe is used, then the structure is simple, but vortexes and pressure drops are detrimental to system performance
Solution Approach 1:
The frustoconical outlet passage with curved geometry eliminates hard flow direction changes and reduces vortex formation. This curved design improves airflow capacity by reducing flow resistance and pressure drops, while the frustoconical structure can be integrated into the existing housing design with minimal additional complexity
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 system achieves reduced pressure losses by up to 50% and increased airflow capacity, extending filter element life and efficiency, while also reducing power consumption and noise levels.
Implementation Method 1
The present invention provides a particulate filtration system for filtering particulate matter from air or another gas or gas mixture. The filtration system is configured to contour the flow of gases through the system, decreasing and increasing the flow velocity in a manner that controls static pressures, laminates intake air flow, and reduces vortexes, resistance, and pressure drops
Implementation Method 2
The outlet defines an outlet passage with a frustoconical or arcuate shape and a cross-sectional area that decreases along the flow path in a direction away from the filtration element
Data Source
AI summary
A particulate filtration system including a frustoconical-shaped filtration element, a housing enclosing the filtration element and coaxial therewith, an inlet, and an outlet. The filtration element has a closed first end and a larger oppositely-disposed open second end. The housing has a first closed end, a larger oppositely-disposed open second end, and a frustoconical-shaped wall therebetween and surrounding the filtration element. An annular-shaped passage is defined by and between the filtration element and the housing. The inlet is located at the second end of the housing and is fluidically connected to the annular-shaped passage. The outlet is located at the second end of the filtration element and coaxial with the inlet. The outlet defines an outlet passage with a frustoconical or arcuate shape and a cross-sectional area that decreases along the flow path in a direction away from the filtration element.