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Fin for heat exchanger and heat exchanger with fin

A heat exchanger and fin technology, applied in the field of heat exchangers, can solve the problems of loss of air volume, reduction of effective air volume, unhelpful heat exchange, etc., to achieve the effect of exerting heat transfer capacity, uniform wind field, and reducing void areas

Active Publication Date: 2011-11-23
SANHUA HANGZHOU MICRO CHANNEL HEAT EXCHANGER
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The gap 10G is not helpful for heat exchange, but it is easy to let the air flow directly and lose a certain amount of air volume, which reduces the effective air volume
Especially when the fin pitch FP is large and the fin angle α is large, the area of ​​the lower end of the fin triangular area is larger, resulting in more airflow loss, and the heat transfer efficiency cannot be guaranteed

Method used

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  • Fin for heat exchanger and heat exchanger with fin
  • Fin for heat exchanger and heat exchanger with fin
  • Fin for heat exchanger and heat exchanger with fin

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0036] refer to figure 1 , the heat exchanger 100 such as a microchannel heat exchanger includes: tubes 20 such as flat tubes, fins 10 arranged alternately with the tubes 20 , and headers 30 arranged at both ends of the tubes 20 .

[0037] like Figure 4-6 As shown, the fins 10 may be generally triangular corrugated fins. The fin 10 includes a fenestrated portion 15, which may be a generally flat plate-shaped portion. A substantially tapered space 15S is formed between adjacent fenestration portions 15, and the substantially tapered space 15S has a first end portion 15S1 and a second end portion 15S2, the width of the first end portion 15S1 being smaller than that of the second end portion. 15S2 width. refer to figure 2 as well as Figure 4 , the width is measured in the same direction as the fin pitch FP. The fin 10 also includes a curved section 16 connected between adjacent window openings 15 , such as a curved plate section. After installation, at least a portion o...

Embodiment 2

[0043] Figure 7 and Figure 8 The structure of the fin according to the second embodiment of the present invention is shown. The difference between the second embodiment and the first embodiment is that a third window opening sheet is added on the basis of the first embodiment. Only the structure different from the first embodiment will be described below.

[0044] like Figure 7 and 8 As shown, the fin 10 further includes a third fenestration piece 15L3 located in the fenestration portion 15 between the first fenestration piece 15L1 and the second fenestration piece 15L2. That is, the third fenestration piece 15L3 is located between the first fenestration piece 15L1 and the second fenestration piece 15L2 in the lateral direction LD of the fenestration portion. The opening width of the third fenestration piece 15L3 extending into the substantially conical space 15S is the same as the opening width LW1 of the first fenestration piece 15L1 extending into the substantially ...

Embodiment 3

[0048] Figures 9 to 14 A fin according to a third embodiment of the present invention is shown.

[0049] like Figure 9-14 As shown, the fin 10 includes fenestrated portions 15 and curved segments 16 that connect between adjacent fenestrated portions 15 . The fin 10 also includes a protruding portion 16P extending generally from the curved section 16 to the generally conical space 15S. That is, the protruding portion 16P protruding from the inner surface of the curved section 16 toward the space 15S. The protruding portion 16P may have any suitable shape, for example, the protruding portion 16P has a substantially circular cross-section, such as Figure 9 and 11 shown, or roughly triangular, as in Figure 12 and 14 shown. This section is parallel to the fin pitch FP direction (see figure 2 ) and the fin height H direction.

[0050] A plurality of protruding parts 16P can be provided on the entire length L of the curved section 16 at certain intervals, and the protru...

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Abstract

The invention provides a fin for a heat exchanger and the heat exchanger with the fin. The fin comprises a windowing part, a first windowing piece and a second windowing piece, wherein an approximately conical space is formed between adjacent windowing parts and is provided with a first end part and a second end part; the width of the first end part is smaller than that of the second end part; the first windowing piece is formed on the windowing part and is close to the first end part; the second windowing piece is formed on the windowing part and is close to the second end part; and the windowing width of the first windowing piece close to the first end part and extending into the first end part of the approximately conical space is smaller than that of the second windowing piece close to the second end part and extending into the second end part of the approximately conical space. Therefore, the windowing piece is wide enough to cover an empty area of a triangular area as much as possible, so that a wind field flowing through the fin is more uniform, and the heat transfer capability of the windowing piece is greatly improved.

Description

technical field [0001] The present invention relates to a fin for a heat exchanger and a heat exchanger with the fin. Background technique [0002] refer to figure 1 , the heat exchanger 100 such as a microchannel heat exchanger includes: tubes 20 such as flat tubes, fins 10 arranged alternately with the tubes 20 , and headers 30 arranged at both ends of the tubes 20 . [0003] like figure 2 As shown, the existing fin 10' is a triangular corrugated fin. The fins 10' include fenestrations 15' forming a generally conical space 15S' between adjacent fenestrations 15', the generally conical space 15S' having a first end 15S1' and a second end 15S1'. part 15S2', the width of the first end part 15S1' is smaller than the width of the second end part 15S2'; and a window opening 15L' formed in the window opening part 15'. The fenestrated portion 15' generally has a plate-like shape, and the longitudinal direction of the fenestrated portion 15' is substantially aligned with the l...

Claims

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Application Information

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IPC IPC(8): F28F1/10F28D7/00
Inventor 高强黄宁杰汪峰
Owner SANHUA HANGZHOU MICRO CHANNEL HEAT EXCHANGER
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