Ventilation unit and air duct system
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Solution Overview
Problem
Existing ventilation systems face challenges in efficiently regulating air flow and direction, are difficult to integrate into existing systems, and often result in unnecessary pressure drops and noise due to complex designs and multiple components.
Innovation Solution
A ventilation unit with a displaceable section of tube having adjustable openings that can be rotated to control air flow, allowing for easy adjustment of flow magnitude and direction without manual nozzle closure or separate baffles, and can be integrated into existing duct systems.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If manual nozzle closure or separate baffles are used to regulate air flow, then flow magnitude can be controlled, but the device complexity increases and pressure drops occur
Solution Approach 1:
The patent combines the flow regulation function and direction control function into a single rotatable section of tube with openings. This eliminates the need for separate baffles or manual nozzle closure mechanisms, thereby reducing device complexity while maintaining ease of operation for regulating air flow magnitude and direction
2Ease of operation
If separate baffles are used for flow regulation, then flow direction can be controlled, but unnecessary pressure drops and noise are generated
Solution Approach 1:
The patent merges the direction control function into the rotatable section of tube itself. By rotating the section with openings to different angular positions, flow direction is controlled without requiring separate baffles, thereby eliminating the harmful pressure drops and noise that would be generated by additional flow control components
Solution Approach 2:
The patent uses a dynamically adjustable rotatable section that can be positioned at different angles to control flow direction. This dynamic adjustment mechanism replaces static baffles, allowing for flexible direction control while minimizing turbulence-induced pressure drops and noise generation
3Adaptability or versatility
If complex ventilation systems with multiple components are used, then flow regulation capability is improved, but integration into existing systems becomes difficult
Solution Approach 1:
The patent combines multiple functions (flow magnitude regulation, flow direction control, and integration interface) into a single unified component - the rotatable section with openings. This multi-functional design enhances adaptability for flow regulation while simplifying integration into existing ventilation systems, as it requires minimal modification to ductwork
Solution Approach 2:
The rotatable section with openings serves multiple purposes: regulating flow magnitude by adjusting the effective opening area, controlling flow direction by rotating to different angles, and providing a standardized interface for integration into existing duct systems. This multi-functionality improves versatility while maintaining ease of installation
4Measurement precision
If multiple components are used in ventilation units, then flow control precision is improved, but maintenance and cleaning become difficult
Solution Approach 1:
The patent merges flow control functions into a single rotatable section with openings, eliminating multiple separate components. This unified structure maintains precise flow control capability while significantly improving ease of maintenance and cleaning, as there are fewer parts to inspect and no complex assemblies to disassemble
Data Source
Figure 1A~1C
Figure 2A~2C
Figure 3A~3C
AI summary
The invention concerns a ventilation unit intended to serve as at least one of a supply and an exhaust unit integrated into an air duct system in a ventilation plant, and a system comprising the ventilation unit. The ventilation unit comprises at least two sections of tube (1, 3) that can be connected with a common axis with mutually adapted dimensions, whereby - at least one of the said sections of tube (1, 3) constitutes a fixed part of the said air duct system, - at least one of the said sections of tube (1) can be displaced relative to at least one axially connected section of tube (3), - two of the said sections of tube that can be connected along their axis are mutually displaceable and form an area of overlap (1-3) at their connecting end parts, whereby at least one of these sections of tube (1, 3) has one or several openings (2) that can be opened in the wall of the tube at or next to, or at and next to, the said area of overlap (1-3), and - the flow of air through the said one or several openings (2) that can be opened can be regulated with respect to its magnitude or its direction, or with respect to both its magnitude and its direction, through displacement or rotation, or through displacement and rotation, of the two mutually displaceable sections of tube (1, 3).