Regenerative separating device for separating impurities from an airflow

Resolve Bottlenecks,
Find Innovative SolutionsGenerate Solutions

Solution Overview

Problem

Conventional carousel-type regenerative separating devices experience reduced filtering efficiency due to uneven airflow distribution and loading of filter blocks, as the airflow inlet and regeneration system are typically positioned opposite each other, leading to inefficient impurity separation and increased emissions.

Innovation Solution

Positioning the airflow inlet and regeneration system within the same circumferential sector of up to 180 degrees on the same side of the rotary separating unit allows for a more uniform airflow distribution and loading of filter blocks, enhancing filtering efficiency and simplifying the device's construction.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Device complexity

If the airflow inlet and regeneration system are positioned opposite each other, then the device structure is simplified, but the airflow distribution becomes uneven and filtering efficiency decreases

Engineering Contradiction:

Improvedevice structureVSAvoidfiltering efficiency

Core Design Contradiction:

Device complexityVSProductivity

Solution Approach 1:

The patent positions the airflow inlet and regeneration system asymmetrically within the same circumferential sector (maximum 180 degrees) rather than symmetrically opposite each other. This asymmetric arrangement creates more uniform airflow distribution across the filter blocks, improving filtering efficiency while maintaining structural simplicity.

Inventive Principle:

Principle #4Asymmetry

2Ease of manufacture

If the airflow inlet and regeneration system are positioned opposite each other, then the device construction is simplified, but the airflow loading of filter blocks becomes uneven

Engineering Contradiction:

Improvedevice constructionVSAvoidairflow loading uniformity

Core Design Contradiction:

Ease of manufactureVSManufacturing precision

Solution Approach 1:

By positioning both the airflow inlet and regeneration system within the same circumferential sector rather than opposite each other, the patent creates an asymmetric configuration that promotes uniform airflow distribution across all filter blocks, thereby improving manufacturing precision in terms of airflow loading uniformity.

Inventive Principle:

Principle #4Asymmetry

3Productivity

If the airflow inlet and regeneration system are positioned in the same circumferential sector, then the filtering efficiency is improved, but the device complexity increases

Engineering Contradiction:

Improvefiltering efficiencyVSAvoiddevice structure

Core Design Contradiction:

ProductivityVSDevice complexity

Solution Approach 1:

The patent merges the positioning of the airflow inlet and regeneration system into the same circumferential sector (maximum 180 degrees). This consolidation approach improves airflow distribution and filtering efficiency while actually simplifying the overall device structure by reducing the spatial spread of components.

Inventive Principle:

Principle #5Merging (Combining)

4Productivity

If the airflow inlet and regeneration system are positioned in the same circumferential sector, then the filtering efficiency is improved, but the fabrication and maintenance costs increase

Engineering Contradiction:

Improvefiltering efficiencyVSAvoidfabrication and maintenance cost

Core Design Contradiction:

ProductivityVSEase of manufacture

Solution Approach 1:

By merging the positioning of the airflow inlet and regeneration system into the same circumferential sector, the patent improves filtering efficiency while potentially reducing fabrication and maintenance costs through more compact component arrangement and simplified installation.

Inventive Principle:

Principle #5Merging (Combining)

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 results in improved filtering efficiency, reduced emissions, and lower fabrication and maintenance costs, while also enabling a more uniform distribution of airflow and reduced thermal insulation needs.

Implementation Method 1

a plurality of filter blocks for receiving impurities from an airflow passing through the filter blocks in the radial direction

Methodology Applied

Scientific EffectAdsorption: Adsorption

Implementation Method 2

a regeneration system for regenerating the filter blocks of the rotary separating unit by a regenerating stream radially passing through the filter blocks to desorb impurities adsorbed therein

Methodology Applied

Scientific EffectDesorption: Desorption

Data Source

PatentUS11071941B2Regenerative separating device for separating impurities from an airflow

Publication Date: 2021.07.27 DUERR SYST AG

AI summary

An improved regenerative separating device for separating impurities from an airflow, in particular a process exhaust airflow, provides a better distribution of the airflow in an annular gap between a rotary separating unit comprising a plurality of filter blocks for adsorbing impurities from the airflow and a circumferential wall of a housing incorporating the rotary separating unit. The airflow inlet provided in the circumferential wall for introducing the airflow into the annular gap and a regeneration system for regenerating the filter blocks of the rotary separating unit by a regenerating stream passing through the filter blocks to desorb impurities adsorbed in the filter blocks are both positioned in the same circumferential sector of maximum 180 degrees.