Vortex Air Exhaust Outlet for Higher Pollutant Capture
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Solution Overview
Problem
Traditional air exhaust systems suffer from low capture efficiency and energy wastage due to decreased capture velocity with distance from the exhaust outlet, leading to inefficient removal of indoor air pollution sources.
Innovation Solution
An air exhaust apparatus is designed with a propeller and impeller system that creates a funnel-shaped vortex in the duct, increasing capture velocity by forming a strong low-pressure area, allowing high-pressure air to flow in and effectively exhaust pollutants without additional electricity, and is easily installable as a replacement for traditional diffusers.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a traditional air diffuser with louver is used as exhaust outlet, then clean air can be distributed evenly into indoor, but capture velocity decreases with distance from exhaust outlet, resulting in low capture efficiency
Solution Approach 1:
The invention inverts the traditional exhaust outlet design by introducing a propeller and impeller system that actively generates vortex flow and low-pressure areas to enhance capture velocity, transforming a passive diffusion-based exhaust into an active vortex-driven exhaust system that maintains high capture efficiency over distance
Solution Approach 2:
The invention utilizes pneumatic principles by employing a propeller and impeller to generate rotational airflow and vortex patterns, creating low-pressure zones that actively draw pollutants toward the exhaust outlet, thereby maintaining capture velocity over extended distances without additional electrical power
2Object-affected harmful factors
If excessive ventilation rate is used to clean indoor air pollution, then indoor air quality can be improved, but energy is wasted due to discharging heated or cooled air
Solution Approach 1:
The invention enables the exhaust system to self-enhance its performance by utilizing the kinetic energy from the propeller and impeller rotation to generate vortex flow and low-pressure areas, eliminating the need for additional electrical power or excessive ventilation rates while maintaining effective pollutant capture and reducing energy waste
3Productivity
If capture velocity is maintained at high level, then pollutants can be effectively captured, but exhaust face velocity must be very high, increasing energy consumption
Solution Approach 1:
The invention employs curved vortex flow patterns generated by the propeller and impeller to create rotational airflow that maintains capture velocity over distance, utilizing the centrifugal and centripetal forces in the vortex to sustain high capture efficiency without requiring proportionally high exhaust face velocity and associated energy consumption
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
The apparatus enhances indoor air quality by improving capture efficiency and reducing energy consumption, achieving effective pollutant removal without additional electrical power and maintaining compatibility with existing building infrastructure.
Implementation Method 1
the propeller may revolve with an impeller which is connected the shaft. Here, fins of the impeller push air outward, and then the pushed air flows along a direction which is in parallel with a rotating plate and loses momentum, and then the air which lost momentum may return to the impeller by an inhale air flow caused by a suction force in the duct. Thus, a funnel-shaped vortex may be formed under the air exhaust apparatus.
Implementation Method 2
Strong low pressure area may be formed in the vortex. High pressure air around the vortex may flow into the low pressure area in the vortex with high speed, so that capture velocity may be increased.
Implementation Method 3
when a blower of a central exhaust device is driven, exhaust suction flow may be formed in the duct, and then the exhaust suction flow may rotate a propeller.
Data Source
AI summary
An air exhaust apparatus includes a housing, a shaft, a bearing part, a propeller, and an impeller disposed at a lower portion of the shaft. The housing has a space formed therein and an outlet formed at an upper portion thereof to discharge air flowed into the space. The shaft is installed inside of the housing in a vertical direction. The bearing part supports the shaft to revolve. The propeller is disposed at an upper portion of the shaft to be rotated by an exhaust suction flow in a duct. The impeller includes a rotating plate having a through hole for air inlet and a plurality of fins formed on the rotating plate, and is rotated with the propeller. A funnel-shaped vortex is formed under the impeller when the propeller and impeller revolve.