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Plate heat exchanger

A technology of plate heat exchanger and heat exchange zone, applied in the direction of heat exchanger type, indirect heat exchanger, heat exchange equipment, etc., to achieve good mixing effect, strengthen heat exchange effect, and reduce the effect of fluid flow pressure drop

Pending Publication Date: 2021-02-26
ZHEJIANG SANHUA INTELLIGENT CONTROLS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, there is still room for improvement in plate heat exchangers of the related art to provide better heat transfer performance under the condition of lower fluid pressure drop.

Method used

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  • Plate heat exchanger
  • Plate heat exchanger
  • Plate heat exchanger

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Experimental program
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Embodiment Construction

[0031] For plate heat exchangers, the herringbone wave technology forms the plate by arranging periodically alternating "herringbone" ridges and grooves on the plate. Two adjacent circulation plates are assembled by means of herringbone sharp angles to form a fluid channel, which has the technical characteristics of high turbulence and enhanced heat transfer effect. It is widely used in refrigeration and air conditioning, refrigeration, automobiles, aerospace, etc. broadly used.

[0032] For a plate heat exchanger with a corrugated structure similar to a herringbone wave shape, the flow of fluid is decomposed into furrow flow along the channel and roughly along the path between the inlet and outlet of the plate. The longitudinal flow (longitude flow) in the main flow direction formed between them.

[0033] Under the wave distance parameters that meet the mold forming and structural strength requirements, the plate with an obtuse angle of the herringbone wave has a large flow ...

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Abstract

The invention discloses a plate heat exchanger. The plate heat exchanger comprises a plate assembly. The plate assembly comprises a first plate sheet and a second plate sheet. The first plate sheet isprovided with a first plate part and a plurality of first bulge structures. A first groove is formed between every two adjacent first bulge structures. The second plate sheet is provided with a second plate part and a plurality of second bulge structures. A second groove is formed between every two adjacent second bulge structures. The first bulge structures and the second bulge structures are each provided with a plurality of extending sections and a plurality of connecting sections. The first bulge structures of the first plate sheet are at least partially in contact with the second bulge structures of the second plate sheet at the connecting sections of the first bulge structures and the connecting sections of the second bulge structures. The extending sections of the first bulge structures are positioned above the openings of the second grooves. The extending sections of the second bulge structures are positioned above the openings of the first grooves. According to the plate heatexchanger, the fluid pressure drop can be reduced as much as possible while a good heat exchange effect is achieved.

Description

technical field [0001] The present application relates to the technical field of heat exchange, in particular to a plate heat exchanger. Background technique [0002] Plate heat exchangers are widely used in refrigeration and air conditioning, new energy vehicles and other industries. In the related art, the plates of the plate heat exchanger have a corrugated structure characterized by a herringbone wave shape, and the included angles of the herringbone waves of two adjacent plates are assembled in such a way that they point in opposite directions, thereby forming a fluid channel. [0003] Related technologies exist such as figure 1 The plate shown, this kind of plate indicates that the wave angle of the herringbone wave is 90° and there are multiple herringbone waves with continuous multiplicity of about 3 in the width direction of the plate; refer to figure 2 For the top view of the plates shown, the points of contact between two adjacent plates are marked with circles...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F28D9/04F28F3/04
CPCF28D9/04F28F3/044
Inventor 李华李永平其他发明人请求不公开姓名
Owner ZHEJIANG SANHUA INTELLIGENT CONTROLS CO LTD
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