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Heat exchanger

A heat exchanger and heat exchange fluid technology, applied in heat exchange equipment, water heaters, indirect heat exchangers, etc., can solve problems such as inability to absorb thermal expansion difference, flow path rupture, etc., to prevent rupture and prevent heat exchange efficiency Falling effect

Active Publication Date: 2018-06-08
NEO
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] However, from the viewpoint of heat exchange efficiency, such a conventional heat exchanger fits and installs a cylindrical pin-shaped heat conductor into a hole formed in the main body without clearance, so it cannot absorb heat due to the material of the heat conductor and the main body. There is a risk of cracking the flow path due to the difference in thermal expansion between the two

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0039] 〔Heat exchange unit〕

[0040] figure 1 It is a perspective view of a heat exchange unit with a heat exchanger according to Embodiment 1 of the present invention. figure 2 It is an exploded perspective view of the heat exchange unit.

[0041] The heat exchange unit 1 of the present embodiment is installed in the middle of the pipes 3a and 3b through which the heat exchange fluid flows, and is used in a state of being fixed to a wall or the like, for example. In this heat exchange unit 1 , the heat-exchanged fluid flowing in from the pipe 3 a on the upstream side passes through the inside and flows out to the pipe 3 b on the downstream side. At this time, the heat exchange unit 1 will be heated or cooled by the heat exchange fluid for temperature control or temperature adjustment. In this embodiment, the heat exchanged fluid is heated by the heat exchange unit 1 .

[0042] The fluid to be heat exchanged is not particularly limited, and is corrosive acids such as hydr...

Embodiment 2

[0120] Figure 14 It is a sectional view of the heat exchanger according to Example 2 of the present invention. In the second embodiment, the same symbols are used for the components corresponding to those of the first embodiment, or the symbols A are added to the same symbols, and repeated explanations are omitted.

[0121] In the heat exchanger 7A of this embodiment, only one heat transfer plate 11Aa of the pair of heat transfer plates 11Aa, 11Ab is provided with the heat conductor 51A. The heat transfer plate 11Ab does not have a heat conductor, and is constituted only by a plate-shaped plate main body 49 .

[0122] Compared to Example 1, the heat conductor 51A extends in the longitudinal direction, and defines a gap G1 with the other heat transfer plate 11Ab in the insertion direction.

[0123] In this second embodiment, the same effect as that of the first embodiment can be obtained.

Embodiment 3

[0125] Figure 15 It is a schematic diagram showing a part of the flow path of the heat exchanger body in Example 3 of the present invention. In Embodiment 3, the same symbols are used for the components corresponding to those in Embodiment 1, or the symbols B are added to the same symbols, and repeated descriptions are omitted.

[0126] In this embodiment, the outer side of the folded shape of the folded portion 33B of the flow path 23B is formed into a curved shape with no corners as a whole.

[0127] Therefore, in Example 3, turbulent flow can be generated by the inner corner 43 of the folded shape of the folded portion 33B, and excessive turbulent flow can be more reliably prevented by the curved shape without any corners on the outside of the folded shape. Therefore, in this embodiment, the pressure loss of the heat-exchanged fluid can be suppressed to a minimum, and the turbulent flow can be reliably generated.

[0128] In addition, Example 3 can also obtain the same f...

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Abstract

Provided is a heat exchanger having a structure in which a heat transfer body is fitted in a hole in a heat exchanger body, wherein the difference between the heat expansion of the heat exchanger bodyand the heat transfer body can be eliminated without reducing heat exchange efficiency. This heat exchanger is provided with: a body 9 having a flow channel 23 for circulating a fluid to undergo heatexchange; and a heat transfer plate 11 that performs heat exchange with the fluid via the body 9. The heat transfer plate 11 is provided with: a plate body 49 having a contact surface 49a in contactwith the outer surface of the body 9; and a plurality of wall-shaped heat transfer bodies 51 that are disposed inside of the body 9 so as to protrude from the contact surface 49a of the plate main body 49. The body 9 is provided with a plurality of slit-shaped holes 25 to which the plurality of wall-shaped heat transfer bodies are respectively fitted by insertion at positions other than the position of the flow channel 23 in order to position the wall-shaped heat transfer bodies on the interior. The heat transfer bodies 51 are formed smaller than the holes 25, in which the heat transfer bodiesare fitted, and a gap G1, or G2 or G3 is demarcated between the heat transfer bodies and the holes 25.

Description

technical field [0001] This invention relates to heat exchangers for controlling the temperature of fluids. Background technique [0002] A heat exchanger is a device that heats or cools one object by contacting two objects with different temperatures to control the temperature. It is widely used in industrial applications such as boilers, steam generators, food manufacturing, chemical manufacturing, and refrigeration. [0003] When controlling the temperature of the fluid, for example, a heat exchanger is installed in the middle of the piping to control the temperature of the fluid flowing through the piping. [0004] Such a conventional heat exchanger includes, for example, the technique described in International Publication WO2013 / 180047. In this heat exchanger, a flow path communicating with the pipe is formed on the plate-shaped body, and a cylindrical pin-shaped heat conductor with better thermal conductivity than the body is embedded around the flow path, and plate-...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F28F3/12F28F3/02
CPCF24H1/121F24H9/1818F28D7/082F28F9/005F28F13/00F28F2013/006F28D1/0477F28F3/12F28F3/06F28F2265/26
Inventor 木村洋一
Owner NEO
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