Ventilating Cover Plate Geometry for Converged Airflow Exhaust
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
The existing stationary ventilating devices face inefficiencies in ventilating rising airflow due to the generation of resisting forces caused by airflow convergence in the uppermost room, where the airflow-guiding plates have the same lateral slope, leading to incomplete ventilation.
Innovation Solution
The introduction of a covering plate with vertically erected supporting legs on the uppermost airflow-guiding plate, forming a ventilating passage with a smaller slope angle than the airflow-guiding plates, allows rising airflows to flow backward and be ventilated efficiently, reducing the inner space and resisting forces.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If the uppermost airflow-guiding plate has the same lateral slope angle as the lower plates, then the structure is simple and uniform, but airflow convergence occurs in the uppermost room generating resisting force that reduces ventilation efficiency
Solution Approach 1:
The uppermost airflow-guiding plate is designed with a different lateral slope angle (smaller angle) compared to the lower plates, creating a local structural variation. This local quality change allows the uppermost plate to guide converged airflow smoothly toward the exhaust outlet rather than creating resistance, thereby improving ventilation efficiency while maintaining overall structural simplicity
Solution Approach 2:
The lateral slope angle parameter of the uppermost airflow-guiding plate is specifically changed to be smaller than that of the lower plates. This parameter modification optimizes the airflow path in the uppermost room, reducing turbulence and resisting force while enhancing the overall ventilation performance of the device
2Volume of stationary object
If the uppermost room height is increased to accommodate airflow convergence, then airflow can be collected, but resisting force increases and ventilation efficiency decreases
Solution Approach 1:
The height parameter of the uppermost room is optimized to a specific range (50-150mm) that is sufficient to accommodate airflow convergence from multiple lower rooms but not excessive to create significant resisting force. This parameter optimization balances airflow collection capability with ventilation efficiency, allowing smooth airflow exhaust without excessive resistance
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 enables smooth ventilation of converged airflows and significantly reduces resisting forces, improving airflow exhaust efficiency by creating a passage for air to flow out of the device, thus overcoming the inefficiencies of prior art designs.
Implementation Method 1
airflows rising from the plurality of airflow-guiding plates flow backward in the covering plate and are ventilated through the ventilating passage
Data Source
AI summary
A stationary ventilating device for efficiently exhausting airflow converged above a plurality of airflow-guiding plates which are stacked up and assembled together is disclosed. A stationary ventilating device in accordance with the present invention comprises a base, a plurality of airflow-guiding plates stacked-up and assembled together on the base, a plurality of guiding members each of which is interposed between the plurality of airflow-guiding plates, and a covering plate including supporting legs on a lower side of the covering plate, the supporting legs vertically erected and installed on an uppermost airflow-guiding plate of the plurality of airflow-guiding plates so that a ventilating passage is formed on the upper side of the uppermost airflow-guiding plate, wherein the slope angle of lateral side of the covering plate is formed to be smaller than the slope angle of lateral sides of the plurality of airflow-guiding plates, and wherein airflows rising from the plurality of airflow-guiding plates flow backward in the covering plate and are ventilated through the ventilating passage.