Clean Room Air Treatment with Separate Fresh and Room Air Processing
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Solution Overview
Problem
Existing air treatment devices for clean rooms are inefficient in terms of energy usage due to unnecessary processing of room air, such as dehumidification, which increases energy requirements.
Innovation Solution
The proposed air treatment device features a heat pump system with separate air treatment chambers for temperature control and dehumidification of fresh air, allowing for efficient processing without unnecessary energy consumption by separating fresh and room air flows and using direct thermal coupling between cooling and heating circuits.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If fresh air and room air are treated together in a single air treatment chamber, then the device structure is simpler, but energy consumption increases due to unnecessary processing of room air
Solution Approach 1:
The air treatment device is divided into a first air treatment chamber for treating room air and a second air treatment chamber for treating fresh air. This segmentation allows independent treatment of different air streams, preventing unnecessary energy consumption from processing room air that already meets quality requirements, while maintaining manageable system complexity through modular chamber design.
2Reliability
If fresh air is dehumidified along with room air, then the air treatment process is more comprehensive, but energy requirements increase
Solution Approach 1:
The device segments air treatment functions into two chambers: the first chamber handles room air with comprehensive dehumidification and temperature control, while the second chamber handles fresh air with targeted temperature control only. This segmentation maintains reliable air quality control by ensuring room air receives full treatment, while reducing energy requirements by avoiding unnecessary dehumidification of fresh air that typically has lower humidity.
Solution Approach 2:
Different air treatment qualities are applied to different air streams based on their specific requirements. Room air receives full dehumidification and temperature control (higher treatment quality), while fresh air receives only temperature control (lower treatment quality). This local quality approach ensures each air stream gets the appropriate level of treatment, maintaining reliability while reducing overall energy consumption.
3Use of energy by moving object
If separate air treatment chambers are used for fresh air and room air, then energy efficiency improves, but device complexity increases
Solution Approach 1:
The device uses segmentation into two air treatment chambers to improve energy efficiency by treating fresh air and room air separately. To mitigate the resulting complexity, the chambers are designed as integrated modules within a single device housing, with coordinated control systems that manage both chambers together, thus balancing energy efficiency gains with acceptable device complexity.
Solution Approach 2:
While separating air treatment functions into two chambers, the device merges the control systems and integrates both chambers within a unified device structure. The control unit coordinates both chambers' operations, and the overall device design combines the chambers into a compact arrangement, thus achieving energy efficiency through separation while minimizing the increase in device complexity through integration.
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 enables efficient air treatment with reduced energy requirements by allowing separate processing of fresh and room air, avoiding unnecessary dehumidification of room air and optimizing energy usage through simultaneous energetic coupling.
Implementation Method 1
The air treatment unit (26b) comprises a heat pump system (32b), with a first cooling circuit (34b) for temperature control of air to be supplied in the first air treatment chamber (28b), and with a second cooling circuit (36b) and heating circuit (38b) for dehumidification and temperature control of fresh air in the second air treatment chamber (30b}, directly thermally coupled
Implementation Method 2
The second cooling circuit (36b) and the heating circuit (38b) are directly thermally coupled
Implementation Method 3
a first cooling circuit (34b) for temperature control of air to be supplied in the first air treatment chamber (28b), and with a second cooling circuit (36b) for dehumidification and temperature control of fresh air in the second air treatment chamber (30b)
Data Source
Figure 1
Figure 2
Figure 3
AI summary
The invention is based on an air treatment device, in particular a clean room air treatment device, for the air treatment of a room (12a; 12b), with at least one outside air line (14a; 14b) for sucking in fresh air (16a; 16b), with at least one room air line ( 18a; 18b) for sucking room air (20a; 20b) out of the room (12a; 12b), with at least one supply air line (22a; 22b) for supplying air (24a; 24b) into the room (12a; 12b) and having at least one air treatment unit (26a; 26b) for processing air (24a; 24b) to be supplied via the air supply line (22a; 22b) from the fresh air (16a; 16b) and the room air (20a; 20b). It is proposed that the air treatment unit (26a; 26b) be provided for at least partially treating the fresh air (16a; 16b) separately from the room air (20a; 20b).