Air-handling system
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Solution Overview
Problem
Conventional air treatment systems struggle to dynamically adjust airflow volume in response to varying demands, particularly in systems with multiple blow-out ports, leading to inefficiencies and an inability to handle momentary changes in airflow requirements.
Innovation Solution
An air treatment system comprising a controller that regulates the rotation speed of separate supply and exhaust fan units, equipped with airflow volume detection units, allowing for real-time adjustments to meet changing airflow demands by controlling the airflow volume through the system.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the air treatment system uses a fixed configuration without variable speed fans, then the device complexity is reduced, but the system cannot dynamically adjust airflow volume to meet varying demands
Solution Approach 1:
The patent applies dynamics by equipping each fan unit with a variable rotation speed capability. The supply fan unit and exhaust fan unit can independently adjust their airflow volumes by changing rotational speeds, enabling the system to adapt to varying airflow demands dynamically rather than being fixed
2Ease of operation
If the air treatment system integrates fans within the air treatment unit, then the device complexity is reduced, but the supply fan and exhaust fan cannot be controlled independently
Solution Approach 1:
The patent applies segmentation by separating the supply fan unit and exhaust fan unit as independent components from the air treatment unit. This allows each fan unit to be controlled independently by separate controllers, enabling individual adjustment of supply and exhaust airflow volumes without affecting the other
3Productivity
If the air treatment system lacks airflow volume detection and control, then the device complexity is reduced, but the system cannot respond to momentary changes in airflow requirements
Solution Approach 1:
The patent applies feedback by incorporating airflow volume detection units in each fan unit that detect the actual airflow volume and provide this information to controllers. The controllers use this feedback to adjust fan rotation speeds and achieve the desired airflow volumes, enabling responsive control to changing demands
Data Source
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AI summary
An air treatment system controls airflow volume in accordance with momentarily varying airflow volume to be demanded. A supply fan unit (20) is disposed separately from an air treatment unit (10), and sends outdoor air from an outdoor space to the air treatment unit (10) and sends outdoor air treated by the air treatment unit (10) to an indoor space. An exhaust fan unit (30) is disposed separately from the air treatment unit (10), and sends indoor air from the indoor space to the air treatment unit (10) and sends indoor air treated by the air treatment unit (10) to the outdoor space. A controller controls a rotation speed of a first fan in accordance with a first detection value of a first airflow volume detection unit, and controls a rotation speed of a second fan in accordance with a second detection value of a second airflow volume detection unit.