Building Ventilation System with Room-Level Exhaust Control
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Solution Overview
Problem
Conventional conditioning ventilation systems face challenges in maintaining air quality and comfort while minimizing energy consumption, as they often result in increased air-conditioning loads, high initial and running costs, and uneven distribution of moisture, bacteria, dust, and smells due to the circulation of air between rooms, which can lead to the diffusion of harmful materials.
Innovation Solution
The system employs a configuration with air-intake and exhaust ports in each room, a return air path that rejoins and reconditions air, and an outdoor air introduction path with adjustable mechanisms to control airflow, allowing for independent discharge and supply of air in each room, ensuring fresh air is supplied while harmful materials are swiftly discharged, and utilizing the heat and air quality of return air for reconditioning.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If ventilation airflow of the entire building is increased to discharge harmful material, then harmful material such as smell and bacteria can be discharged, but noise is increased, initial cost is high and air-conditioning load is largely increased and therefore running cost is also high
Solution Approach 1:
The system divides the building into multiple zones with separate air supply and exhaust systems for each zone. This allows harmful materials to be discharged from specific zones without increasing ventilation throughout the entire building, thereby reducing the overall air-conditioning load and energy consumption while still effectively removing harmful materials where they are generated.
Solution Approach 2:
The patent implements localized air supply and exhaust ports in specific rooms or zones where harmful materials are generated. By concentrating ventilation efforts in affected areas rather than throughout the entire building, the system achieves effective harmful material discharge while minimizing the air-conditioning load and associated running costs in unaffected areas.
2Object-affected harmful factors
If ventilation airflow of the entire building is increased to discharge harmful material, then harmful material such as smell and bacteria can be discharged, but noise is increased and initial cost is high
Solution Approach 1:
The system is divided into modular air supply and exhaust units that can be independently installed in different zones. This segmentation reduces the complexity of any single unit while maintaining the capability to discharge harmful materials effectively, and allows for phased implementation that reduces initial costs.
3Object-affected harmful factors
If a system which ventilates and air-conditions in each of rooms and spaces is introduced, then there is no risk that smell and bacteria flow into another room or another space, but initial costs and running cost are increased, and space for the system is also required
Solution Approach 1:
The patent combines air supply and exhaust functions into an integrated system where air is supplied to specific zones and exhaust is extracted from the same or adjacent zones. This merging approach prevents harmful material diffusion between rooms while optimizing air circulation patterns to reduce the overall air-conditioning load and running costs compared to fully independent room-by-room systems.
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 achieves a comfortable and healthy indoor environment with uniform temperature and improved air quality while reducing energy consumption by efficiently managing airflow and reusing the heat and air quality of return air, effectively preventing the diffusion of harmful materials between rooms.
Implementation Method 1
indoor air is circulated in the building by the air blowing section
Implementation Method 2
a heat exchanger which recovers heat from return air to pre-condition outdoor air
Implementation Method 3
the air which has been sterilized by the sterilizing device
Data Source
AI summary
The present invention provides a conditioning ventilation system 1. In the conditioning ventilation system 1, each of a plurality of rooms in a building is provided with an air-intake portion 16 and an exhaust means 19, the air-intake portions 16 are provided with a plurality of air blowing sections 13 which send wind through a plurality of ducts 17, a return air path which joins up from a plurality of the exhaust means 19 and returns to the air blowing sections 13 is provided, indoor air is circulated in the building by the air blowing sections 13, an outdoor air introduction path having an opening/closing mechanism is connected to the return air path, each of the plurality of rooms is provided with an exhaust means 26 directing to outdoor and having an opening/closing mechanism 27, outdoor air and indoor air are circulated in the building and, in this state, switching operation can be carried out to discharge air to outdoor independently in the plurality of rooms, energy saving and comfortable space having uniform temperature and excellent air quality is normally realized, and when harmful material flows in or is generated, the harmful material is prevented from being dispersed to another room while swiftly discharging the harmful material, and heat and air quality of return air are effectively utilized.