Fresh air integrated machine
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing fresh air integrated machines face challenges in efficiently managing indoor air circulation and outdoor fresh air introduction, leading to temperature fluctuations and condensation issues, especially in extreme humidity conditions, due to the limitations of single heat exchangers.
Innovation Solution
The proposed fresh air integrated machine incorporates a housing with separate fresh air and circulating air channels, an air mixing cavity, and multiple heat exchangers to independently control humidity and temperature, allowing for multi-stage dehumidification and efficient air mixing, along with a heat exchange member for energy reduction.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If a single heat exchanger is used for both fresh air and circulating air processing, then device complexity is reduced, but temperature control precision and dehumidification effectiveness deteriorate
Solution Approach 1:
The patent divides the air processing system into separate fresh air channels and circulating air channels, each with dedicated heat exchangers. This segmentation allows independent temperature and humidity control for each air stream, resolving the contradiction by prioritizing control precision over device simplicity.
Solution Approach 2:
The heat exchangers are designed to perform multiple functions including cooling, heating, and dehumidification within the same component structure. This multi-functionality allows the system to maintain precise temperature control while avoiding the need for separate specialized components for each function.
2Reliability
If outdoor fresh air is introduced directly into indoor space, then air purification is improved, but indoor temperature stability deteriorates due to extreme temperature differences
Solution Approach 1:
The system performs preliminary temperature adjustment and humidity control on outdoor fresh air through dedicated fresh air channels and heat exchangers before introducing it into the indoor space. This preliminary processing ensures that the introduced air does not cause extreme temperature fluctuations, resolving the contradiction between purification and stability.
Solution Approach 2:
The patent uses an air mixing cavity as an intermediary component where processed fresh air and circulating air are mixed before being supplied to the indoor space. This intermediary mixing process buffers temperature extremes and stabilizes the final air composition, resolving the contradiction between fresh air introduction and temperature stability.
3Temperature
If high humidity air is cooled directly, then temperature reduction is achieved, but condensation occurs leading to reliability issues
Solution Approach 1:
The patent segments the humidity control function from the temperature control function by using separate heat exchangers for circulating air and fresh air, each capable of independent dehumidification. This segmentation allows humidity to be reduced before cooling, preventing condensation and maintaining system reliability.
Solution Approach 2:
The system performs preliminary dehumidification through the heat exchangers before cooling the air to lower temperatures. By removing excess humidity first, the air's dew point is reduced, preventing condensation during subsequent cooling processes and ensuring reliable operation.
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 solution effectively stabilizes indoor temperatures, reduces energy consumption, and prevents condensation, enhancing the reliability and efficiency of the air purification process.
Implementation Method 1
The first heat exchanger is disposed in the fresh air channel and configured to adjust humidity and temperature of air in the fresh air channel. The second heat exchanger is disposed in the circulating air channel and configured to adjust humidity and temperature of air in the circulating air channel.
Implementation Method 2
The air mixing cavity is configured to mix and introduce the outdoor air introduced by the fresh air channel and the indoor air introduced by the circulating air channel into indoors
Implementation Method 3
The air mixing cavity is configured to mix and introduce the outdoor air introduced by the fresh air channel and the indoor air introduced by the circulating air channel into indoors
Data Source
AI summary
A fresh air integrated machine includes a housing, a fresh air channel, a circulating air channel, an air mixing cavity, a first heat exchanger, and a second heat exchanger. The fresh air channel is configured to introduce outdoor air into the air mixing cavity. The circulating air channel is configured to introduce indoor air into the air mixing cavity. The first heat exchanger is disposed in the fresh air channel and configured to adjust humidity and temperature of air in the fresh air channel. The second heat exchanger is disposed in the circulating air channel and configured to adjust humidity and temperature of air in the circulating air channel.