Heat exchanger
By designing staggered odd and even rows of heat exchange tubes and staggered fin structures in the heat exchanger, the problems of condensate accumulation and performance degradation in the heat exchanger are solved, achieving more efficient heat exchange and condensate discharge, and improving air temperature uniformity.
WO2026129791A1PCT designated stage Publication Date: 2026-06-25DANFOSS AS +1
Patent Information
- Authority / Receiving Office
- WO · WO
- Patent Type
- Applications
- Current Assignee / Owner
- DANFOSS AS
- Filing Date
- 2025-09-24
- Publication Date
- 2026-06-25
AI Technical Summary
Technical Problem
Existing heat exchangers have shortcomings in heat exchange efficiency and condensate drainage, leading to reduced performance and the risk of condensate buildup.
Method used
The design employs a multi-row heat exchange tube structure, where the orthographic projections of the odd-numbered and even-numbered rows of heat exchange tubes in the column direction do not overlap. Staggered first and second fins are set between adjacent rows to leave condensate drainage channels. Combined with the bent and connected manifold structure, the airflow path is optimized.
Benefits of technology
It improves heat exchange efficiency, reduces the risk of condensate buildup and blowout, and enhances air temperature uniformity and heat exchange performance.
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Smart Images
Figure CN2025123641_25062026_PF_FP_ABST
Abstract
The present invention provides a heat exchanger. The heat exchanger comprises: a plurality of heat exchange tubes, the plurality of heat exchange tubes being arranged in an array form; and a plurality of first fins and a plurality of second fins. One first fin is arranged between each pair of heat exchange tubes among at least some pairs of adjacent rows of at least two columns of heat exchange tubes, one second fin is arranged between each pair of heat exchange tubes among at least some pairs of adjacent rows of at least one of the remaining columns of heat exchange tubes, and among the at least some pairs of adjacent rows of the at least two columns of heat exchange tubes, some heat exchange tubes located in different columns share the same first fin. The plurality of heat exchange tubes are divided into odd-numbered rows of heat exchange tubes and even-numbered rows of heat exchange tubes. In at least one pair of adjacent heat exchange tubes, one of which is located in an odd-numbered row and the other in an even-numbered row, the orthographic projection, in the column direction, of at least one heat exchange tube in the odd-numbered row at least partially does not overlap with the orthographic projection, in the column direction, of the other heat exchange tube in the even-numbered row adjacent to the at least one heat exchange tube.
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