Conditioning ventilation system
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Solution Overview
Problem
Conventional conditioning ventilation systems face challenges in efficiently managing harmful materials like bacteria and odors across multiple rooms, leading to increased energy costs, discomfort due to temperature inconsistencies, and high initial and operational costs, while also struggling to prevent the diffusion of harmful substances between spaces.
Innovation Solution
The system employs a configuration with air-intake and exhaust ports in each room, a return air path that recirculates and reconditions indoor air, and an outdoor air introduction path with adjustable mechanisms to control airflow, allowing for independent air management in each room, ensuring fresh air supply and swift discharge of harmful materials while optimizing energy use.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-generated harmful factors
If ventilation airflow is increased to 6-12 times per hour to discharge harmful materials, then harmful materials such as smell and bacteria can be discharged, but noise is increased, initial cost is high, air-conditioning load is largely increased, and running cost is high
Solution Approach 1:
The patent divides the building into multiple zones with separate ventilation systems for different areas (e.g., patient rooms, corridors, equipment rooms). Each zone has independent air supply and exhaust capabilities, allowing selective ventilation activation based on occupancy and contamination risk, thereby reducing overall air-conditioning load while maintaining harmful material discharge effectiveness.
Solution Approach 2:
The system employs variable air volume control with adjustable air supply and exhaust fans that can dynamically modify ventilation rates based on real-time conditions such as occupancy detection, CO2 levels, and contamination risk. This dynamic adjustment optimizes the balance between harmful material discharge and energy consumption.
2Loss of energy
If a centralized ventilation system is used to circulate air throughout the building, then air-conditioning cost is reduced, but harmful materials such as smell and bacteria can flow into other rooms and passages
Solution Approach 1:
The ventilation system is segmented into zone-specific units with dedicated air handling equipment for different building areas. Each zone maintains independent pressure control and air circulation, preventing cross-contamination through shared air ducts while still allowing heat recovery between zones to reduce overall air-conditioning costs.
Solution Approach 2:
The patent introduces air locks and pressure-controlled transition zones between different building areas as intermediaries that allow thermal energy exchange while blocking the direct flow of contaminated air. These intermediary spaces maintain pressure differentials that prevent harmful material diffusion while enabling heat recovery efficiency.
3Object-generated harmful factors
If each room is provided with independent air blowing sections and return air paths, then harmful material diffusion is prevented, but initial cost and running cost are increased
Solution Approach 1:
The patent designs multi-functional air handling units that can operate in different modes (supply, exhaust, recirculation, heat recovery) depending on the operational requirements of each zone. These universal units reduce the need for completely separate systems in each room, thereby containing harmful materials while controlling device complexity and cost.
Solution Approach 2:
Adjacent zones with similar contamination risk profiles are grouped together to share common air handling equipment and return air paths. This merging approach maintains harmful material containment through shared pressure control and isolation mechanisms while reducing the total number of independent systems required, thus lowering initial and running costs.
4Object-generated harmful factors
If air is recirculated within each room and space, then harmful material diffusion is prevented, but distribution of moisture, bacteria, dust and smell becomes non-uniform due to room shapes and installation states
Solution Approach 1:
The patent implements locally optimized air distribution within each zone, with multiple air supply outlets positioned at different locations and heights to ensure uniform air quality throughout the space. Return air grilles are strategically placed to capture contaminants from different areas, maintaining consistent air composition while preventing harmful material diffusion to other zones.
Solution Approach 2:
The system incorporates sensors (CO2 detectors, particulate matter sensors, temperature sensors) that provide real-time feedback on air quality parameters. This feedback controls variable speed fans and air distribution mechanisms to dynamically adjust air circulation patterns, ensuring uniform distribution of moisture, bacteria, dust, and smell while maintaining harmful material isolation between zones.
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 maintains comfortable and healthy indoor air quality with uniform temperature across rooms, effectively preventing the spread of harmful substances and reducing energy consumption by utilizing recycled air and optimizing air conditioning loads.
Implementation Method 1
pressure in the room is made negative by an exhaust fan
Implementation Method 2
air which ventilates and air-conditions circulates each room and each space
Implementation Method 3
a heat exchanger, which heat-exchanges outdoor air and indoor air
Implementation Method 4
outdoor air is sterilized by a sterilizing device provided in an air-supply exhaust duct
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.