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Finned Tube Heat Exchanger

A technology of heat exchangers and finned tubes, which is applied in the field of finned tube heat exchangers, can solve the problems of reduced thermal conductivity and no heat exchange, and achieve the effects of improving thermal conductivity, promoting heat exchange, and good thermal conductivity

Inactive Publication Date: 2011-11-30
PANASONIC CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, in the finned tube heat exchanger described in the first reference, although the longitudinal vortex S generated by the air flow behind the cut and raised fins 111 and 112 will increase the heat transfer rate, the heat transfer rate will be improved. The heat conduction of the tube 114 is substantially radial, and the segment direction of the fin 101 ( Figure 18 The heat conduction in the up and down direction) is cut off by the cutting and lifting pieces 111, 112, and there is a region where no heat exchange occurs, and there is a problem that the thermal conductivity decreases
[0005] Also, in the finned tube heat exchanger described in the second patent document, the heat conduction of the heat conduction fins is blocked by the flow guide fins, and there is also a region where heat exchange is not performed, resulting in the problem of a decrease in heat conduction performance.

Method used

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  • Finned Tube Heat Exchanger
  • Finned Tube Heat Exchanger
  • Finned Tube Heat Exchanger

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0049] use below Figure 1 to Figure 5 Example 1 of the present invention will be described. Figure 1 ~ Figure 3 It is the first shape of the present embodiment 1, Figure 4 Be the 2nd kind of shape of present embodiment 1, Figure 5 It is the third shape of the first embodiment.

[0050] First, use Figure 1 ~ Figure 3 Explanation The first shape of the first embodiment will be described. figure 1 It is the front view of the heat conduction fin of the first shape, figure 2 For the bottom view of this heat conduction fin, image 3 It is a partial enlarged perspective view of the heat conduction fin of the first shape. figure 1 One of the plurality of heat conducting fins 10 is shown in , figure 2 4 of the plurality of heat transfer fins 10 laminated together and one of the plurality of heat transfer tubes 12 penetrating through the heat transfer fins 10 are shown in .

[0051] like figure 1 and figure 2 As shown, each heat conducting fin 10 is formed with a pl...

Embodiment 2

[0078] Embodiment 2 of the present invention uses Image 6 (a) and Image 6 (b) Explain. Image 6 (a) is the front view of the heat conduction fin shape of Embodiment 2 of the present invention, Image 6 (b) is the front view of the shape of the same heat conduction fin. Image 6 (a) represents one of the plurality of heat conduction fins 10, Image 6 (b) is one of four heat transfer fins 10 among the laminated plurality of heat transfer fins 10 and a plurality of heat transfer tubes 12 penetrating through the heat transfer fins 10 .

[0079] exist Image 6 (a) and Image 6 In (b), as in Embodiment 1, a plurality of mountain-shaped bodies 45a with leeward side openings 44a are respectively formed between adjacent fin sleeves 11 in the section direction of the plane where the heat conduction fins 10 are located. The mountain-shaped body 45b having the leeward side opening 44b and the mountain-shaped body 45c having the leeward side opening 44c. Moreover, there are more m...

Embodiment 3

[0087] use below Figure 8 ~ Figure 9 The present Example 3 will be described. Figure 8 It is the front view of the heat conduction fin shape of the present embodiment 3, Figure 9 It is the bottom view of the same front heat conduction fin. Figure 8 Indicates one of the plurality of heat conducting fins 10, Figure 9 It is one of four heat transfer fins 10 among the laminated heat transfer fins 10 and one of the plurality of heat transfer tubes 12 penetrating through the heat transfer fins 10 .

[0088] exist Figure 8 and Figure 9 In the same manner as in Embodiment 1, a plurality of mountain-shaped bodies 55a with leeward side openings 54a are formed between adjacent fin sleeves 11 in the section direction of the plane where the heat conducting fins 10 are located, and a plurality of ridges 55a with leeward side openings are formed. The mountain-shaped body 55b of the portion 54b and the mountain-shaped body 55c having the leeward side opening 54c. Furthermore, the...

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Abstract

The present invention provides a finned tube that improves thermal conductivity by providing a cutout on the heat conduction fin, forming a mountain-shaped body that bulges the heat conduction fin portion on the windward side of the cutout, and has an opening portion formed on the cutout on the downwind side. type heat exchanger. Wherein, a notch (13) is provided on the heat conduction fin (10) in a section direction approximately perpendicular to the airflow direction, and the heat conduction fin on the upwind side of the airflow (1) of the notch (13) is formed to bulge, and has a slit formed on the leeward side. The mountain-shaped body (15) of the opening (14) on the side cutout (13). A plurality of mountain-shaped bodies (15) having leeward side openings (14) are formed on the plane where the heat conduction fins (10) between adjacent fin sleeves (11) in the section direction are located.

Description

technical field [0001] The invention relates to a finned tube heat exchanger, which is used in air conditioners such as room air conditioners, integrated air conditioners, automobile air conditioners, heat pump water heaters, refrigerators, freezers, etc. Heat exchange is performed between gas such as air flowing between the flat fins and fluid such as water or refrigerant flowing in the heat transfer tubes. Background technique [0002] The general structure of a finned tube heat exchanger composed of multilayered flat heat conducting fins and heat transfer tubes is as follows: Figure 18 As shown in the figure, it is composed of multilayer flat heat transfer fins 101 and heat transfer tubes 104 stacked in parallel at a certain interval. Gas W such as air flows between the multi-layered plate-shaped heat transfer fins 101 , and fluid R such as water or refrigerant flows inside the heat transfer tubes 104 . The heat transfer tubes 104 are inserted into the heat-conducting f...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F25B39/00F28F3/04F28F1/30
Inventor 横山昭一青柳治谏山安彦安藤智朗
Owner PANASONIC CORP