Bent Heat Exchanger Wind Guide Design for Uniform Airflow Distribution
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Solution Overview
Problem
The heat exchange performance of conventional bent heat exchange devices is compromised due to non-uniform wind speed distribution across their surfaces, with higher wind resistance at the bottom portion and lower wind speed at the top, leading to inefficient heat exchange.
Innovation Solution
A heat exchange device with a wind guide member, such as a V-shaped wind guide plate, is introduced to guide air uniformly across the surface of the heat exchanger, improving wind speed distribution and enhancing heat exchange efficiency by forming a substantially inverted V-shaped configuration.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a bent heat exchange device is used to fit spatial requirements, then the device can be installed in confined spaces, but the wind speed distribution becomes non-uniform causing poor heat exchange performance
Solution Approach 1:
A wind guide member is introduced as an intermediary component between the air source and the bent heat exchange device. This wind guide member actively redirects and distributes wind flow to compensate for the non-uniform distribution caused by the bent configuration, thereby maintaining high heat exchange performance while preserving spatial adaptability
2Volume of moving object
If the heat exchange device is placed closer to the box at the bottom portion, then spatial compactness is improved, but wind resistance increases and wind speed decreases
Solution Approach 1:
The wind guide member implements local quality by providing targeted wind guidance specifically at the bottom portion of the heat exchange device where wind speed is lowest. The guide structure is positioned and dimensioned to deliver enhanced wind flow precisely to the lower heat exchange surfaces, compensating for the reduced wind speed caused by proximity to the box
3Manufacturing precision
If the wind guide member is positioned to maximize wind guidance, then wind speed distribution uniformity improves, but device complexity increases
Solution Approach 1:
The wind guide member utilizes parameter changes by optimizing its geometric parameters (angle, dimensions, positioning) to achieve effective wind guidance. By carefully selecting parameters such as the guide angle within specific ranges and positioning the member at optimal distances from the heat exchange surfaces, uniform wind distribution is achieved without requiring complex multi-component structures
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 uniform wind speed distribution across the heat exchanger surfaces significantly improves heat exchange performance by reducing 'dead regions' and increasing efficiency, particularly by ensuring consistent wind speed along the length of the heat exchangers.
Implementation Method 1
a wind guide member 3 disposed between the first heat exchanger 1 and the second heat exchanger 2 for guiding a wind toward the first heat exchanger 1 and the second heat exchanger 2 respectively
Implementation Method 2
a wind flows upwards from a lower surface of the heat exchange device and exchanges heat with a refrigerant in the heat exchange tubes
Data Source
Figure 1~2
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AI summary
A heat exchange device is provided. The heat exchange device comprises: a first heat exchanger (1) defining an upper end and a lower end; a second heat exchanger (2) defining an upper end connected to the upper end of the first heat exchanger (1) and a lower end spaced apart from the lower end of the first heat exchanger (1) in a longitudinal direction, such that a predetermined angle between the first heat exchanger (1) and the second heat exchanger (2) is θ, where 0<θ<180°; and a wind guide member (3) disposed between the first heat exchanger (1) and the second heat exchanger (2) for guiding a wind toward the first heat exchanger (1) and the second heat exchanger (2) respectively.