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Plate type heat exchanger

A plate heat exchanger and plate technology, applied in the direction of heat exchanger types, indirect heat exchangers, heat exchange equipment, etc., can solve problems such as changing the heat transfer area, improve heat capacity, avoid a substantial increase in power, increase The effect of effective heat exchange area

Inactive Publication Date: 2012-11-07
覃新川
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In addition, it is difficult for plate heat exchangers to change the heat transfer area by adding fins like shell and tube heat exchangers, that is, to make the heat transfer areas on both sides unequal.

Method used

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  • Plate type heat exchanger
  • Plate type heat exchanger

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] Specific reference attached image 3 It can be seen that the plate heat exchanger constructed according to a preferred embodiment of the present invention is a high-efficiency heat exchanger formed by stacking a series of plates with a certain corrugated shape. exist image 3 Only three plates are shown in , namely the first plate 1 , the second plate 2 and the third plate 3 . The first flow channel 4 is formed between the first plate 1 and the second plate 2, and the second flow channel 5 is formed between the second plate 2 and the third plate 3 to separate the hot and cold fluids so that the hot and cold fluids Flow in the flow channels 4 and 5 on both sides of the second plate 2 respectively, and exchange heat through the second plate 2 .

[0033] A straight screen 6 is arranged in the second channel 5 to form a reinforcing sheet.

[0034] In this embodiment, the second sheet 2 and the flat screen 6 , and the third sheet 3 and the flat screen 6 have intimate cont...

Embodiment 2

[0038] Specific reference attached Figure 4 It can be seen that the plate heat exchanger constructed according to a preferred embodiment of the present invention is a high-efficiency heat exchanger formed by stacking a series of plates with a certain corrugated shape. exist Figure 4Only three plates are shown in , namely the first plate 1 , the second plate 2 and the third plate 3 . The first flow channel 4 is formed between the first plate 1 and the second plate 2, and the second flow channel 5 is formed between the second plate 2 and the third plate 3 to separate the cold and hot fluids, making them respectively The flow channels 4 and 5 on both sides of the second plate 2 flow through the second plate 2 or the third plate 3 to exchange heat between the hot and cold fluids.

[0039] The plate heat exchanger constructed according to this embodiment includes a first perforated plate 61 , a second perforated plate 62 , a third perforated plate 63 and a fourth perforated pla...

Embodiment 3

[0047] Specific reference attached Figure 5 It can be seen that the plate heat exchanger constructed according to a preferred embodiment of the present invention is a high-efficiency heat exchanger formed by stacking a series of plates with a certain corrugated shape. exist Figure 4 Only three plates are shown in , namely the first plate 1 , the second plate 2 and the third plate 3 . The first flow channel 4 is formed between the first plate 1 and the second plate 2, and the second flow channel 5 is formed between the second plate 2 and the third plate 3 to separate the cold and hot fluids, making them respectively The flow channels 4 and 5 on both sides of the second plate 2 flow through the second plate 2 to exchange heat between the hot and cold fluids.

[0048] The plate heat exchanger constructed according to this embodiment includes first, second, and third perforated plates 61 ′, 62 ′, 63 ′ as reinforcing sheets.

[0049] First, second and third perforated plates 6...

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PUM

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Abstract

The invention provides a plate type heat exchanger. The plate type heat exchanger comprises at least three folded plate sheets for form at least two flowing channels, wherein at least one layer of reinforcing sheets is arranged in at least one flow channel. The reinforcing pieces are plate sheets, perforated plate sheets or screens. The plate type heat exchanger can improve flow area and actual heat exchange area of convection heat exchange coefficient on the small side, surface heat exchange coefficient by adding the reinforcing piece in a targeted mode on a basis that the turbulence strength of the plate type heat exchanger is kept to be constant and is even improved, accordingly improves total heat exchange coefficient, enables the efficiency to be improved during liquid-liquid heat exchange, air-liquid heat exchange and air-air heat exchange, especially during the air-liquid heat exchange, and widens the application range.

Description

technical field [0001] The present invention relates to a heat exchanger, more particularly to a plate heat exchanger. Background technique [0002] The plate heat exchanger is a new type of high-efficiency and compact heat exchanger that has been developed rapidly and widely used in recent decades. It is composed of a series of stacked plates with a certain corrugated shape, such as figure 1 shown. figure 1 A cross-sectional shape of a common herringbone corrugated plate flow channel is given. The first flow channel 4 is formed between the first plate 1 and the second plate 2, and the first flow channel 4 is formed between the second plate 2 and the third plate 3. Two flow channels 5 to separate the hot and cold fluids, that is, the stacked plates 1, 2, 3 form two flow channels 4, 5, so that the cold and hot fluids flow in the flow channels 4, 5 on both sides of the plate 2 respectively , through plate 2 for heat exchange. Since the channel between the plates is a channe...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F28D9/00F28F3/02
Inventor 覃新川
Owner 覃新川
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