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Serpentine heat exchanger
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A heat exchanger and serpentine technology, applied in the direction of heat exchanger fixation, heat exchange equipment, heat exchanger type, etc., can solve problems such as temperature difference and difficulty in achieving high efficiency of heat exchangers
Inactive Publication Date: 2014-02-26
CALSONIC KANSEI CORP
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Abstract
Description
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Problems solved by technology
In the case of such a channel structure, the medium flowing in a certain channel does not mix with the medium flowing in other channels, so there is a temperature difference between the channels, and it is difficult to achieve high efficiency of the heat exchanger
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no. 1 Embodiment approach
[0029] figure 1 It is an overall configuration diagram of a serpentine heat exchanger (hereinafter referred to as "heat exchanger") 100 according to the first embodiment of the present invention.
[0030] The heat exchanger 100 comprises tubes 1 , corrugated fins 2 , inlet joints 3 , outlet joints 4 , inlet tubes 5 and outlet tubes 6 .
[0031] A plurality of frustoconical protrusions 8 formed with a groove 7 and protruding into the groove 7 by press forming (refer to Figure 2A ~ Figure 2C and image 3 ) of tube sheet 11 (refer to Figure 4A ) are stacked, and the stacked tube sheets 11 are folded back in a serpentine (meandering) shape, thereby forming the tube 1 . In the following description, the folded portion of the tube 1 is referred to as a “folded portion”, and the portion of the tube 1 that is not folded is referred to as a “straight portion”.
[0032] Figure 2A to Figure 2C The figure shows the tube 1 cut in the short direction at the folded part, the tube 1 ...
no. 2 Embodiment approach
[0054] The method of forming the columns formed inside the pipe 1 in the second embodiment is different from that in the first embodiment.
[0055] In the first embodiment, the protrusions 8 are formed on the two tube sheets 11 constituting the tube 1, and the columns are formed by butting these protrusions 8, but in the second embodiment, only one tube sheet 11 is formed with a convex portion 8 , and the other tube sheet 11 is not formed with a convex portion 8 . In the second embodiment, the column is formed inside the tube 1 by bringing the convex portion 8 formed on one tube sheet 11 into contact with the flat surface of the other tube sheet 11 .
[0056] Figure 5 It is a sectional view of the pipe 1 of the second embodiment. The convex portion 8 is formed only in one tube sheet 11 , and the convex portion 8 is not formed in the other tube sheet 11 . With this structure, columns can also be formed inside the pipe 1 . According to this structure, it is not necessary to...
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PUM
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Abstract
This serpentine heat exchanger comprises a tube folded into a serpentine shape and configured by bonding together two press-molded tube sheets, and corrugated fins arranged in spaces enclosed by the folded tube. A plurality of convex parts that protrude from one of the tube sheets to make contact with the other tube sheet are formed with intervals therebetween on the inside of the folded part of the tube.
Description
technical field [0001] The invention relates to a serpentine heat exchanger. Background technique [0002] A serpentine heat exchanger disclosed in JP2001-27484A is known as a heat exchanger used as an evaporator or a condenser of an air conditioner for a vehicle. [0003] The serpentine heat exchanger has a structure in which tubes in which passages for a medium are formed are folded back in a serpentine (serpentine) shape, and fins are arranged in spaces sandwiched by the folded tubes. [0004] The serpentine heat exchanger has the advantage that heat exchangers of various sizes, that is, various capacities can be manufactured by changing the length of the tube, the bending position, and the number of bending times. [0005] In order to achieve miniaturization and high efficiency of the serpentine heat exchanger, it is necessary to reduce the radius of curvature of the bent part by thinning the tube, and reduce the space inside the bent part where fins cannot be arranged,...
Claims
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Application Information
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