Compact vantilation system
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Solution Overview
Problem
Existing ventilation systems lack bidirectional airflow, leading to inefficiencies in heat exchange and humidity regulation, and fail to maintain optimal indoor air quality by not addressing mold, mildew, carbon monoxide, and carbon dioxide levels effectively.
Innovation Solution
A compact, built-in ventilation system with a tubular body housing a filter, regenerative heat exchanger, and dual axial fans, along with a control unit including sensors and a heater, allowing reversible airflow and monitoring of air quality, integrated with a telescopically adjustable design for easy installation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a single fan is used in one direction, then the device structure is simple, but air can only be fed in one direction and heat exchange efficiency is reduced
Solution Approach 1:
The ventilation system is segmented into two independent fan units (first fan and second fan) positioned at opposite ends of the tubular body, each responsible for one direction of airflow. This segmentation enables reversible ventilation while maintaining relatively simple individual fan structures, resolving the contradiction between operational flexibility and structural complexity.
Solution Approach 2:
The patent merges the intake and exhaust functions into a single integrated tubular body housing that contains both fans, the heat exchanger, and control systems. This consolidation achieves reversible ventilation capability while minimizing overall structural complexity compared to separate distributed systems.
2Loss of energy
If a heat exchanger is added to enable heat recovery, then energy efficiency improves, but the device occupies more space and becomes more complex
Solution Approach 1:
The heat exchanger is nested within the tubular body housing along with the fans and control systems, creating a compact integrated unit. The tubular configuration allows the heat exchanger to be positioned concentrically or adjacently to the airflow path, enabling effective heat recovery while minimizing the overall volume occupied by the ventilation system.
Solution Approach 2:
The system transitions from a planar or distributed layout to a three-dimensional tubular configuration, allowing the heat exchanger, fans, and control elements to be arranged along the length and circumference of the tube. This dimensional reorganization enables efficient heat exchange within a compact footprint, reducing the space required for the device.
3Reliability
If multiple sensors and control systems are integrated, then air quality monitoring and humidity regulation improve, but the device complexity increases
Solution Approach 1:
The control unit is designed as a multi-functional integrated system that combines carbon monoxide detection, carbon dioxide detection, humidity sensing, and fan control capabilities into a single device. This universal control unit improves air quality monitoring reliability while minimizing the increase in device complexity by consolidating multiple functions into one coordinated system rather than using separate independent devices.
4Volume of stationary object
If the ventilation system is designed for building-in, then it occupies no space in the room, but installation complexity increases and adaptability to different wall thicknesses is reduced
Solution Approach 1:
The tubular body housing is designed with telescopic or adjustable sections that allow the length and configuration of the housing to be dynamically adapted to match different wall thicknesses and installation requirements. This dynamic design enables the system to be built into various wall structures without requiring custom fabrication for each installation, maintaining the space-saving built-in characteristic while improving installation adaptability.
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 system provides efficient heat regeneration, quiet operation, humidity regulation, air purification, and monitoring of harmful gases, preventing mold, mildew, and infections while maintaining optimal indoor air quality without occupying space.
Implementation Method 1
a regenerative heat exchanger with a heater and a first fan arranged consecutively from the external opening to the internal opening of the body
Implementation Method 2
a second fan, and a heater is located in the regenerative heat exchanger... the fans are axial fans and are oppositely directed
Implementation Method 3
a filter, a regenerative heat exchanger with a heater and a first fan are arranged consecutively from external opening to internal opening of the body
Implementation Method 4
a heater is located in the regenerative heat exchanger
Data Source
Figure 1
AI summary
The compact ventilation system solves the problem of maintaining a certain microclimate in closed premises, and with minimum energy consumption. The device has a tubular body (2), in which a filter (4), three volume heat exchanger (5) with a heater (6) and a first fan (7) are mounted successively from the external opening (11) to the internal opening (10) of the body (2), the ventilation device has a control unit (8) and before the filter (4) in direction of the external opening (11) of the body (2) there is a second fan (3). Both fans operate separately - the first (7) when introducing air and the second (3) when discharging air from the room.