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Plate-fin heat exchanger

A technology of plate-fin heat exchangers and plate bundles, applied in the field of plate-fin heat exchangers, can solve the problems of limited materials and narrow application fields of plate-fin heat exchangers, and reduce the workload and difficulty of work , the effect of improving production efficiency

Inactive Publication Date: 2008-04-09
李建明
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The present invention improves the structure of the plate-fin heat exchanger to solve the problem in the prior art that the connection between the head and the plate bundle body intersects with the brazing seam in the plate bundle body, so that the plate-fin heat exchanger The production materials are limited and cannot be made of stainless steel, steel, titanium, molybdenum, copper and their alloy materials. Due to the technical problem of narrow application fields, a new type of plate-fin heat exchanger is provided.

Method used

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Examples

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Embodiment 1

[0038] Embodiment one: see attached image 3 As shown in ~6, a plate-fin heat exchanger is mainly composed of a plate bundle body 10, a connecting pipe 11 and a flange 12. The plate bundle body 10 is composed of two kinds of layer channel units 13 and 14 spaced apart and superimposed in the thickness direction to It is composed of eight layers in total, and the channel units 13 and 14 of these two layers are composed of fins 15 , deflectors 16 , partitions 17 and seals 18 .

[0039] See attached image 3As shown in ~6, at the two ends of the plate bundle body 10, two pairs of fluid inlet and outlet holes are opened through the channel units 13 and 14 of each layer along the thickness direction, wherein:

[0040] See attached image 3 As shown in ~ 6, the first pair of fluid inlet and outlet holes corresponds to the first layer channel unit 13, and the first pair of fluid inlet and outlet holes is composed of a fluid inlet hole 19 and a fluid outlet hole 20, and the fluid inl...

Embodiment 2

[0045] Embodiment two: see attached Figure 7~1 As shown in 2, a plate-fin heat exchanger is mainly composed of a plate bundle body 10, a connecting pipe 11 and a flange 12. The plate bundle body 10 is composed of four layers of channel units 13, 14, 24 and 25 spaced and stacked to a total of eight These four layer channel units 13 , 14 , 24 and 25 are composed of fins 15 , flow guides 16 , partitions 17 and seals 18 .

[0046] See attached Figure 7~1 As shown in 2, four pairs of fluid inlet and outlet holes are opened at both ends of the plate bundle body 10 along the thickness direction through each layer of channel units 13, 14, 24 and 25; wherein:

[0047] Referring to accompanying drawings 9-12, the first pair of fluid inlet and outlet holes corresponds to the first layer channel unit 13, and the first pair of fluid inlet and outlet holes is composed of a fluid inlet hole 19 and a fluid outlet hole 20, and the fluid inlet hole 19 is located on the plate On the upper en...

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Abstract

The invention relates to a plate-fin heat exchanger, which comprises a plate-fin body and a connecting pipe, and the plate-fin body comprises at least two layer channel units alternatively folded. The invention is characterized in that at least two pairs of fluid body inlet and outlet holes are arranged on two ends of the plate-fin body along a thickness direction; each pair of fluid body holes correspond to a layer channel unit; each pair of fluid body holes comprise a fluid body inlet hole and a fluid body outlet hole, and each fluid body inlet hole is communicated with a flow deflector of the corresponding layer channel unit. Enclosing ring interdiction and insulation is arranged at the communicating position with the non-corresponding layer channel unit, forming an offshoot of the same layer channel unit; each fluid body outlet hole is also communicated with the flow deflector of the corresponding layer channel unit, and enclosing ring interdiction and insulation is arranged at the communicating position with the non-corresponding layer channel unit, forming an gathering exit of the same layer channel unit. The invention saves enveloping end on the structure, absolutely avoids the problem that post order jointing end enclosure affects the production quality, and leads the plate-fin heat exchanger to use materials with high relatively high melting points like stainless steel, steel, titanium, molybdenum, copper and the alloy, etc.

Description

technical field [0001] The invention relates to a heat exchanger, in particular to a plate-fin heat exchanger. Background technique [0002] The plate-fin heat exchanger is a high-efficiency heat exchanger with fins as heat transfer elements. It has the characteristics of high heat transfer efficiency, compact structure, scalable number of heat exchange channels, large adaptability, and light weight. Therefore, It is widely used in gas-gas, gas-liquid and liquid-liquid heat exchange equipment, and is usually used in the field of air separation equipment at present. [0003] For the existing technology, please refer to the technical standard "GB / T7261-94 Aluminum Plate-fin Heat Exchanger". The standard plate-fin heat exchanger is composed of plate bundle body, head, connecting pipe and support. The beam body is composed of two or more layer channel units superimposed at intervals. Take two kinds of layer channel units as examples, the first layer channel unit and the second...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F28D9/04F28F9/22
Inventor 李建明
Owner 李建明
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