Heat exchanger and air conditioning system having the same
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Solution Overview
Problem
Conventional heat exchangers face inefficiencies in heat exchange performance, particularly in air conditioning systems, due to uneven heat exchange tube lengths and fin configurations, leading to issues with condensed water distribution and wind resistance, which affect overall system performance.
Innovation Solution
A heat exchanger design featuring two heat exchanger cores with differently sized heat exchange tubes and alternating fin configurations, along with distinct manifolds and connection tubes, allows for optimized heat exchange efficiency and reduced condensed water distribution issues by adjusting heat exchange strengths and wind resistance across different circuits.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If heat exchange tubes of different lengths are used in different heat exchanger cores, then heat exchange performance is improved, but condensed water distribution becomes uneven
Solution Approach 1:
The patent applies local quality by configuring different heat exchange tube lengths in different heat exchanger cores (first core has longer tubes, second core has shorter tubes) to create localized heat exchange strength variations. This allows each core to handle different heat exchange demands, improving overall performance while the alternating fin arrangement compensates for condensed water distribution issues by creating uniform wind field characteristics across both cores.
Solution Approach 2:
The patent employs asymmetry by deliberately creating an asymmetric configuration where the first heat exchanger core has heat exchange tubes of one length and the second core has heat exchange tubes of a different length. This asymmetric design optimizes heat exchange for different operational conditions (partial vs full load) while the alternating fin pattern introduces a counterbalancing symmetry at the fin level to maintain uniform wind resistance and condensed water distribution.
2Productivity
If alternating fin configurations are used in different heat exchanger cores, then wind resistance is optimized, but manufacturing complexity increases
Solution Approach 1:
The patent applies segmentation by dividing the heat exchanger into multiple cores (first and second heat exchanger cores), each with its own fin configuration. The fins in the first core are arranged alternately with heat exchange tubes, and the fins in the second core are also arranged alternately but with different dimensions. This segmentation allows independent optimization of wind resistance characteristics for each core while maintaining manufacturing feasibility through modular design.
3Adaptability or versatility
If multiple circuits with different heat exchange tube arrangements are implemented, then adaptability to different load conditions is improved, but system complexity increases
Solution Approach 1:
The patent applies universality by designing a heat exchanger system that can handle multiple load conditions (partial and full load) through its multi-core structure with different tube lengths. The first core with longer tubes and the second core with shorter tubes together provide a universal solution that adapts to varying heat exchange demands without requiring separate heat exchangers for different operating conditions, thus reducing overall system complexity.
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 design enhances heat exchange performance by adjusting heat exchange strengths and reducing condensed water issues, improving efficiency at both partial and full load conditions, while maintaining uniform wind fields and minimizing water blowout.
Implementation Method 1
a first heat exchanger core including a plurality of heat exchange tubes... a plurality of first circuit heat exchange tubes for forming a first circuit
Implementation Method 2
the plurality of heat exchange tubes of the first heat exchanger core including a plurality of first circuit heat exchange tubes for forming a first circuit
Implementation Method 3
the first heat exchanger core further includes a plurality of fins arranged alternately with the plurality of heat exchange tubes of the first heat exchanger core
Implementation Method 4
a plurality of fins arranged alternately with the plurality of heat exchange tubes
Data Source
AI summary
The present disclosure discloses a heat exchanger and an air conditioning system having the heat exchanger. The heat exchanger includes a first heat exchanger core, a second heat exchanger core and a connection part. Heat exchange tubes of the first heat exchanger core and the second heat exchanger core include first circuit heat exchange tubes. A length of the heat exchange tube of the first heat exchanger core is greater than a length of the heat exchange tube of the second heat exchanger core. The connection part includes a first connection part through which the first circuit heat exchange tubes of the first heat exchanger core are connected with the first circuit heat exchange tubes of the second heat exchanger core. The heat exchange tubes of at least one of the first heat exchanger core and the second heat exchanger core further include second circuit heat exchange tubes. First circuit heat exchange tube groups each constituted by at least one of the first circuit heat exchange tubes and second circuit heat exchange tube groups each constituted by at least one of the second circuit heat exchange tubes are arranged alternately. Thereby, the heat exchange performance can be improved at both partial load and full load.