Air flow control equipment
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Solution Overview
Problem
Current air flow control systems in ventilation and air-conditioning systems are inflexible, costly, and inefficient, requiring multiple dedicated drive units and control mechanisms for each valve, leading to increased energy consumption and acoustic emissions due to high air flow speeds during throttling, and lack effective redistribution of air mass between main and branch air streamlines.
Innovation Solution
The air flow control equipment uses a single common drive unit with multiple redistribution valves, allowing continuous control of exhaust directions through a decentralized control system, integrated with a fan and redistribution mechanism, to manage air flow between the main and branch air streamlines, reducing the need for multiple drive and control elements and minimizing acoustic emissions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If multiple dedicated drive units and control mechanisms are used for each valve, then air flow control precision is improved, but device complexity and cost increase
Solution Approach 1:
The patent combines multiple drive units into a single common drive unit that controls multiple redistribution valves through a shared mechanical connection system. This merging approach maintains precise control capability while reducing the number of independent control mechanisms, thereby lowering device complexity and cost.
Solution Approach 2:
The common drive unit is designed with multi-functionality to control multiple redistribution valves simultaneously. This universal control mechanism replaces multiple dedicated drive units, achieving the same control precision with a single versatile component that serves multiple functions.
2Adaptability or versatility
If multiple dedicated drive units are used for each valve, then air flow control flexibility is improved, but energy consumption increases
Solution Approach 1:
By merging multiple drive units into one common drive unit with shared mechanical connections, the system reduces the total energy consumption while maintaining flexibility. The single drive unit operates more efficiently than multiple separate units, controlling all redistribution valves through a unified mechanical system.
3Productivity
If high air flow speeds are used during throttling, then air flow rate is improved, but acoustic emissions increase
Solution Approach 1:
The redistribution valves are designed to dynamically adjust air flow distribution, allowing the system to maintain required air flow rates while reducing throttling speeds. The mechanical connection system enables coordinated valve movement that optimizes flow distribution and minimizes acoustic emissions generated during throttling operations.
4Measurement precision
If multiple dedicated control mechanisms are used for each valve, then air flow control precision is improved, but cost increases
Solution Approach 1:
The patent merges multiple dedicated control mechanisms into a single common drive unit with shared mechanical connections, significantly reducing manufacturing costs while preserving control precision. This approach eliminates the need for multiple independent control systems, reducing both component costs and assembly complexity.
Data Source
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AI summary
The air flow control equipment is intended in particular for vacuum air-conditioning and ventilation systems in residential and office buildings, warehouses, and production facilities. The vacuum air-conditioning and ventilation systems usually consist of the central ventilation unit (16) fitted with a fan (17), central control unit, at least one main air streamline (3), at least two air streamlines (2), and at least one connection point (1). The air flow control equipment is then comprised of at least one decentralized control unit (15) arranged in the main air streamline (2), of at least one redistribution mechanism (6) arranged in the connection point (1) and of the fan (17) with pressure-dependent or pressure-independent controllable rotary characteristics that is part of the central ventilation unit (16). All the aforementioned items are connected to the common central control unit that performs the continuous control of the quantity of air exhausted from individual ventilated premises, from individual air streamlines (2) and the building as a whole.