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Heat exchanger

A technology for heat exchangers and heat exchange cores, which is applied in the types of heat exchangers, indirect heat exchangers, lighting and heating equipment, etc. It can solve problems such as air leakage at the bending parts of flat tubes, and achieve the effect of improving heat exchange performance

Active Publication Date: 2014-10-22
ZHEJIANG DUNAN THERMAL SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The invention provides a heat exchanger, which solves the problem of air leakage at the bending part of the flat tube, thereby improving the heat exchange performance of the heat exchanger

Method used

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Examples

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Effect test

Embodiment 1

[0034] refer to figure 2 , 3 , the heat exchanger of this embodiment is a double-row microchannel heat exchanger, including two rows of heat exchange cores and flat tube bending parts 3 connected between the two rows of heat exchange cores, and the two rows of heat exchange cores The body is roughly bent to a parallel state. For the convenience of description, the above two rows of heat exchange cores are set as the first heat exchange core 1 and the second heat exchange core 2, but "first" and "second" are only used to distinguish the two rows of heat exchange cores body, has no timing or spatial positioning significance. The flat tube bending part 3 is formed by bending a long flat tube in the middle, but the bending part does not affect the normal circulation of the refrigerant. Usually: the inlet header 4 is connected to the first heat exchange core 1, and the outlet header The flow tube 5 is connected to the second heat exchange core 2, and the refrigerant is distribu...

Embodiment 2

[0045] refer to Figure 5 , the heat exchanger of this embodiment is a double-row microchannel heat exchanger, including two rows of heat exchange cores and flat tube bending parts 3 connected between the two rows of heat exchange cores, and the two rows of heat exchange cores The bodies are roughly bent to a parallel state, and a flow blocking member is provided between the first heat exchange core 1 and the second heat exchange core 2. The difference is that the flow resistance includes two partitions. For the convenience of description, The two partitions are defined as a first partition 7 and a second partition 8, the first partition 7 has a first blocking portion 72 and a first fixing portion 71, and the second partition 8 has a second blocking portion 82 and the second fixing part 81, the first fixing part 71 fixes the first separator 7 to the flat tube of the first heat exchange core 1, and the second fixing part 81 fixes the second separator 8 to the second heat exchan...

Embodiment 3

[0049] Referring to Figure 6(a), the heat exchanger of this embodiment is a double-row microchannel heat exchanger, including two rows of heat exchange cores and flat tube bending parts 3 connected between the two rows of heat exchange cores, The two rows of heat exchange cores are bent to a predetermined angle, and a baffle is provided between the first heat exchange core 1 and the second heat exchange core 2. The baffle includes a first baffle 7 and a second baffle. plate 8, the first partition 7 has a first blocking portion 72 and a first fixing portion 71, the second partition 8 has a second blocking portion 82 and a second fixing portion 81, the first partition 7 and the second partition The specific structure and installation method of the plate 8 can refer to the schemes described in the first and second embodiments, and will not be repeated in this embodiment. The difference is that the first blocking part 72 and the second blocking part 82 are only overlapped together...

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Abstract

The invention discloses a heat exchanger, in particular to a microchannel heat exchanger, and belongs to the field of refrigeration equipment. The heat exchanger comprises at least two rows of heat exchange cores, flat-pipe bending portions and flow-baffle components, wherein the flat-pipe bending portions are connected between the two adjacent rows of heat exchange cores, and the flow-baffle components are arranged between the two adjacent rows of heat exchange cores and baffle airflow from entering the flat-pipe bending portions. The problem of air leak of flat-pipe bending portions of existing multi-row microchannel heat exchangers is solved.

Description

【Technical field】 [0001] The invention relates to a heat exchanger, especially a microchannel heat exchanger. 【Background technique】 [0002] The existing multi-row microchannel heat exchanger consists of multiple heat exchange cores side by side, and the adjacent heat exchange cores are connected by bent flat tubes, such as the heat exchanger structure mentioned in the JPA_1996145580 patent. The two headers are on the same side, so the bending part of the flat tube cannot weld brackets and other mounting parts on the header like the header side. At present, the most commonly used method is to install the mounting plate 02 on the side plate 01. Such as figure 1 shown. For the multi-row microchannel heat exchanger mentioned above, when the installation space of the heat exchanger is small in the width direction of the heat exchange core, the width dimension of the heat exchange core is increased due to the existence of the mounting bracket on the side plate, so that The ef...

Claims

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Application Information

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IPC IPC(8): F28D1/03
Inventor 汪峰何国平虞焕钢
Owner ZHEJIANG DUNAN THERMAL SCI & TECH
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