Paint Booth Air Volume Balancing for Filter Clogging Energy Loss
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Solution Overview
Problem
Paint facilities face energy inefficiency due to the need to operate as if all filter units are clogged, leading to increased energy consumption and potential airflow defects like lateral airflow, even when only some units are clogged.
Innovation Solution
A work facility with adjustable air volume dampers and a gas discharge device that adjusts total air volume, ensuring equal individual air volumes across filter booths to prevent airflow defects while minimizing energy usage by optimizing damper settings and gas discharge output.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the opening degree of air volume adjusting dampers is decreased to compensate for pressure loss from filter clogging, then the air volume can be adjusted appropriately and undesirable airflow is reduced, but the gas discharge fan must produce larger output leading to increased energy consumption
Solution Approach 1:
The patent applies local quality by individually adjusting the opening degree of each air volume adjusting damper according to the specific clogging state of each filter unit. Instead of uniformly decreasing all damper opening degrees, the system selectively adjusts only the dampers corresponding to clogged filter units, maintaining appropriate air volume distribution while minimizing the increase in gas discharge fan output and energy consumption.
2Reliability
If the opening degree of air volume adjusting dampers is initially decreased to account for potential filter clogging, then pressure loss compensation is prepared in advance, but the gas discharge fan operates at unnecessarily high output when filters are not clogged
Solution Approach 1:
The patent implements dynamics by making the damper opening degrees adjustable and variable based on the actual operating condition and filter clogging state. The system transitions from a static initial configuration to a dynamic state where damper opening degrees are optimized in real-time according to measured pressure loss values, allowing the gas discharge fan to operate at appropriate output levels and avoid energy waste when filters are not clogged.
Solution Approach 2:
The patent applies feedback by measuring the pressure loss of each filter unit and using this information to adjust the opening degree of corresponding air volume adjusting dampers. This closed-loop control system ensures that dampers are adjusted only when necessary (when filter clogging is detected), preventing energy waste during normal operation while maintaining readiness to compensate for pressure loss when needed.
3Stability of the object's composition
If all air volume adjusting dampers are adjusted to maintain equal air volumes across filter booths, then undesirable airflow such as lateral airflow is reduced, but the system complexity increases due to coordinated adjustment requirements
Solution Approach 1:
The patent applies self-service by enabling each air volume adjusting damper to be automatically adjusted based on feedback from pressure loss measurements of corresponding filter units. The control system independently determines the appropriate opening degree for each damper without requiring complex manual coordination, thereby maintaining equal air volumes across filter booths and preventing undesirable airflow patterns while managing system complexity through automated control.
Data Source
AI summary
A work facility that is capable of adjusting an air volume without a work defect and saving energy. The opening degree of an air volume adjusting damper corresponding to a filter booth for which the individual air volume measured by a corresponding individual flowmeter is the smallest among the respective individual air volumes for the filter booths is adjusted to a completely open state, whereas the opening degree of any other air volume adjusting damper is adjusted to such an opening degree that the individual air volume for the corresponding filter booth as measured by a corresponding individual flowmeter is equal to the smallest individual air volume, and a gas discharge fan is adjusted by a total air volume adjusting mechanism so that a total air volume measured by a total flowmeter is equal to a predetermined target total air volume.