Regenerative separating device for separating impurities from an airflow
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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 front-loaded impurity adsorption and inefficient desorption.
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, allowing for a more uniform airflow distribution and loading of filter blocks, which enhances filtering efficiency and simplifies the device's construction.
Engineering Contradictions & Design Principles
Engineering 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
Solution Approach 1:
The patent positions the airflow inlet and regeneration system in an asymmetric arrangement within the same circumferential sector (maximum 180 degrees) rather than the conventional symmetric opposite positioning. This asymmetric configuration creates more uniform airflow distribution across the filter blocks, improving filtering efficiency while maintaining structural simplicity
2Productivity
If the airflow inlet and regeneration system are positioned in the same circumferential sector, then airflow distribution becomes more uniform and filtering efficiency improves, but the device structure becomes more complex
Solution Approach 1:
The housing structure serves multiple functions: it contains the rotary separating unit, provides the annular gap for airflow, positions both the airflow inlet and regeneration system, and maintains structural integrity. This multi-functional design achieves uniform airflow distribution without proportionally increasing device complexity
3Device complexity
If the airflow inlet is positioned to load the front section of the rotary separating unit, then the structure is simple, but the impurity adsorption becomes uneven and efficiency is limited
Solution Approach 1:
The patent creates different airflow loading conditions for different sections of the filter blocks by positioning the inlet and regeneration system in the same circumferential sector. This ensures that both front and rear sections of the filter blocks receive appropriate airflow and regeneration, creating uniform local quality across all filter block surfaces and improving overall impurity adsorption efficiency
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, compliance with regulations, and simplified fabrication and maintenance, while also enabling clearer thermal separation and reduced insulation needs.
Implementation Method 1
a rotary separating unit defining a radial direction and a circumferential direction and comprising a plurality of filter blocks for receiving impurities from an airflow passing through the filter blocks in the radial direction
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
Data Source
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 including 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.