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Heat exchanger

A heat exchanger and heat exchange tube technology, applied in heat exchange equipment, heat exchanger shells, indirect heat exchangers, etc., can solve the problems that the evaporator does not give full play to the heat exchange effect, and the insertion depth of the tube end is different. The effect of improving heat exchange efficiency and ensuring quality

Inactive Publication Date: 2008-05-28
BEHR GMBH & CO KG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Finally, when the bottom plate is fitted to the pipe ends, the insertion depth of the pipe ends is different, because there is no corresponding stop or similar device on the flat pipe or on the collecting tank
In terms of heat exchange efficiency, since there is an air gap between the two rows of flat tubes, there will be a problem that the evaporator does not fully exert its heat exchange effect in its entire depth (along the airflow direction).

Method used

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Embodiment Construction

[0016] As an embodiment of the heat exchanger involved in the present invention, FIG. 1 is a flat tube evaporator with a single-row structure, which has a heat exchange pipe network 2 and an upper header 3 and a lower header 4 . The refrigerant connection of this evaporator 1 (not shown in the figure) is identical to the state of the art in this field, ie DE-A 19826 881 . Likewise, the refrigerant delivery route, that is, the fluid model is basically consistent with the prior art.

[0017] FIG. 1 a is a partial sectional view of the collecting tank 3 in the evaporator 1 . The collecting tank 3 is divided into two chambers 6a and 6b by a partition wall 5, and the continuous uninterrupted flat tubes 9 form the only row of flat tubes of the evaporator 1, and their ends 7, 8 are connected to the two chambers. in the room. Continuous uninterrupted corrugated fins 10 are arranged between the flat tubes 9, and the ambient air flows around them. The structure of the collecting tank...

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Abstract

The invention relates to a heat exchanger, in particular an evaporator, consisting of a heat exchange network of undulating ribs and flat pipes, in addition to two collecting basins, subdivided into chambers by longitudinal partitions. Said collecting basins have bases provided with orifices, in which the ends of the flat pipes are housed. According to the invention, the flat pipes are configured to run in the direction of the air flow and are arranged in a row, each pipe comprising a separating strut that runs longitudinally and is aligned with the longitudinal partitions . The separating struts and longitudinal partitions are soldered together.

Description

technical field [0001] The invention relates to a heat exchanger, in particular an evaporator, which consists of a heat exchange network of corrugated fins and flat tubes, as disclosed in application DE-A 198 26 881 . Background technique [0002] The brazed flat tube evaporator disclosed in DE-A 198 26 881 has a double-row structure, that is to say, two rows of flat tubes are arranged one behind the other as viewed from the direction of air flow, and corrugated fins are arranged between them. Both ends of the flat tubes are connected to the collecting tank, which is divided into a front chamber and a rear chamber by a longitudinal partition wall. Some of these chambers are provided with transverse partitions. The refrigerant can enter the flat tube row from top to bottom or from bottom to top. In this process, the deflection of the refrigerant occurs on the "width" on the one hand, that is, in the direction perpendicular to the airflow direction On the other hand occurs i...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F28D1/053F28F9/02F28F1/02F25B39/02
CPCF28F9/0214F28D1/05391F28D2021/0085
Inventor 安德烈亚斯·莱斯特库尔特·莫尔特沃尔夫冈·泽瓦尔德
Owner BEHR GMBH & CO KG