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a heat exchanger

A heat exchanger and the technology of the other side, applied in the field of heat dissipation equipment, can solve the problems of large flow resistance, small flow resistance, easy occurrence of vapor blockage and liquid blockage, etc., to reduce vapor blockage and liquid blockage, reduce occupied space, The effect of high rehydration efficiency

Active Publication Date: 2021-09-03
CSR ZHUZHOU ELECTRIC LOCOMOTIVE RES INST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] The plate-fin heat exchanger has high heat transfer performance and compact structure. Compared with the shell-and-tube heat exchanger, it can effectively reduce the occupied space. However, the size of the condensing side flow channel of the existing plate-fin heat exchanger is small. The efficiency of steam replenishment is low, the flow resistance is large, and steam blockage and liquid blockage are prone to occur
Although the common shell-and-tube heat exchanger has high steam replenishment efficiency and low flow resistance, its structure is usually not compact enough due to the large size of the tube side.
In addition, the heat exchange cores of existing types of heat exchangers are limited by the installation results, making replacement and maintenance very inconvenient

Method used

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] Figure 1 to Figure 2 An embodiment of the heat exchanger of the present invention is shown. The heat exchanger of this embodiment includes a shell 1. A cavity 3 is provided inside the shell 1 and at least one plate-fin structure is arranged in the cavity 3. The heat exchange core 2 includes a cold-side fluid inlet 21 and a cold-side fluid outlet 22 , a hot-side fluid inlet 11 is provided on one side of the housing 1 , and a hot-side fluid outlet 12 is provided on the other side of the housing 1 .

[0026] When the heat exchanger is in operation, the cold-side fluid enters the heat exchange core 2 through the cold-side fluid inlet 21 , passes through the inner fin flow channel 25 , and flows out from the cold-side fluid outlet 22 . The hot-side fluid enters the cavity 3 from the hot-side fluid inlet 11 in the form of steam, and undergoes heat exchange and condensation through the fin channel 25 on the heating core 2 , and the condensed liquid is discharged through the h...

Embodiment 2

[0034] image 3 Another embodiment of the heat exchanger of the present invention is shown. The heat exchanger of this embodiment includes a shell 1, a cavity 3 is provided inside the shell 1 and two plate-fin structures are arranged in the cavity 3 The heat exchange core 2 includes a cold-side fluid inlet 21 and a cold-side fluid outlet 22, a hot-side fluid inlet 11 is provided on one side of the housing 1, and a hot-side fluid outlet 12 is provided on the other side of the housing 1. The front end of the heat exchange core 2 is provided with a connecting part 23, and the rear end is provided with a convex part 24. The inner wall of the housing 1 is provided with a support part 13, the supporting part 13 is supported under the convex part 24, and the connecting part 23 is located outside the housing 1. It is also detachably connected to the housing 1 , and both the cold-side fluid inlet 21 and the cold-side fluid outlet 22 extend to the connecting portion 23 . The support pa...

Embodiment 3

[0037] Figure 4Another embodiment of the heat exchanger of the present invention is shown. The structure of the heat exchanger of this embodiment is basically the same as that of Embodiment 1. The difference is that in this embodiment, there are multiple heat exchange cores 2, and There are also multiple hot-side fluid inlets 11 arranged around each heat exchange core 2 , and the hot-side fluid outlet 12 is located at the center of the multiple hot-side fluid inlets 11 . For example, the casing 1 with a cuboid structure is adopted, and a hot-side fluid inlet 11 is respectively arranged in the middle of the four sides of the casing 1, which is conducive to fully exerting the heat exchange capacity of each heat exchange core 2 and improving the heat exchange efficiency. Correspondingly, the hot side The fluid outlet 12 is located at the center of the bottom of the housing 1. The steam from each hot-side fluid inlet 11 enters the housing 1 to exchange heat with the heat exchange...

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Abstract

The invention discloses a heat exchanger, comprising a shell, the shell is provided with a cavity inside, and at least one plate-fin structure heat exchange core is arranged in the cavity, and the heat exchange core includes a cold-side fluid inlet and a cold-side fluid outlet, one side of the housing is provided with a hot-side fluid inlet, and the other side of the housing is provided with a hot-side fluid outlet. The invention has the advantages of compact structure, small flow resistance, high liquid replenishment efficiency and the like.

Description

technical field [0001] The invention relates to heat dissipation equipment, in particular to a heat exchanger. Background technique [0002] The plate-fin heat exchanger has high heat transfer performance and compact structure. Compared with the shell-and-tube heat exchanger, it can effectively reduce the occupied space. However, the size of the condensing side flow channel of the existing plate-fin heat exchanger is small. The efficiency of steam replenishment is low, the flow resistance is large, and steam blockage and liquid blockage are prone to occur. Although the common shell-and-tube heat exchanger has high steam replenishment efficiency and low flow resistance, its structure is usually not compact enough due to the large size of the tube side. In addition, the heat exchange cores of various existing heat exchangers are limited by the installation results, making replacement and maintenance very inconvenient. Contents of the invention [0003] The technical proble...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F28D9/00
CPCF28D9/00
Inventor 姚磊马明冯钊赞李奎王春燕
Owner CSR ZHUZHOU ELECTRIC LOCOMOTIVE RES INST