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Heat exchanger and refrigeration system using same

A technology for heat exchangers and control tubes, applied in heat exchange equipment, refrigerators, refrigeration components, etc., can solve the problems of the limitation of small-diameter heat transfer tubes, achieve high energy saving, and suppress expansion and deformation

Active Publication Date: 2019-04-02
PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, there is a limit to reducing the diameter of the above-mentioned heat transfer tubes, so the improvement of heat exchange efficiency and miniaturization are approaching the limit.

Method used

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  • Heat exchanger and refrigeration system using same
  • Heat exchanger and refrigeration system using same
  • Heat exchanger and refrigeration system using same

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Experimental program
Comparison scheme
Effect test

Embodiment approach 1

[0073] figure 1 It is a perspective view showing the appearance of a plate-fin stacked heat exchanger (hereinafter, simply referred to as a heat exchanger) 1 according to this embodiment. figure 2 yes figure 1 A-A sectional view of . image 3 It is an external perspective view showing the plate-fin laminated body of the plate-fin laminated heat exchanger according to the first embodiment. Figure 4 It is an exploded perspective view showing the plate-fin laminated body in a state separated up and down. Figure 5 It is an exploded perspective view of the plate-fin laminated body. Figure 6 It is a side view showing the laminated state of the plate fins of the plate fin laminated body.

[0074] Such as figure 1 As shown, the heat exchanger 1 of the present embodiment is configured by connecting a plurality of plate-fin laminated bodies 2 .

[0075] Such as image 3 , Figure 4 As shown, the plate-fin laminated body 2 is stacked between a first end plate 3a and a seco...

Embodiment approach 2

[0164] Such as Figure 22 to Figure 25 As shown, the heat exchanger according to the present embodiment is different from the heat exchanger according to the first embodiment in the shape of the refrigerant flow path group and the installation positions of the header openings. The parts having the same functions as those of the heat exchanger according to Embodiment 1 are denoted by the same reference numerals, and the following description will focus on different parts.

[0165] Figure 22 It is a perspective view which shows one external appearance of the plate-fin laminated body which comprises the heat exchanger of Embodiment 2. Figure 23 It is a plan view of the plate fins constituting this plate-fin laminated body. Figure 24 It is an exploded perspective view showing a partially enlarged structure of the plate fin. Figure 25 It is a perspective view showing a part of the refrigerant flow path group of the plate-fin laminated body cut away.

[0166] Figure 22 to Fi...

Embodiment approach 3

[0172] The heat exchanger of this embodiment is suitable for use as an evaporator in which the refrigerant inlet and outlet of the heat exchanger are opposite to those of the first embodiment. In this embodiment, if Figure 26 ~ Figure 30 As shown, the header flow passage 14 on the outlet side is provided with a refrigerant flow distribution control pipe 24 .

[0173] In addition, in this embodiment, the case where the heat exchanger of the structure of Embodiment 1 is used as an evaporator is demonstrated as an example.

[0174] Figure 26 It is a perspective view which shows the appearance of the plate-fin laminated body of the heat exchanger of Embodiment 3. Figure 27 It is a perspective view which shows the state which removed the distribution control tube from this plate-fin laminated body. Figure 28 It is a perspective view which shows the insertion part of the distribution control tube of this plate-fin laminated body. Figure 29 is a perspective view of the diver...

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PUM

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Abstract

This heat exchanger comprises: a plate fin stack that is formed by stacking a plurality of plate fins; a first end plate and a second end plate; a first inlet connection pipe; a first outlet connection pipe; a second inlet connection pipe; and a second outlet connection pipe. A second fluid flows between the plate fin layers, and heat is exchanged between a first fluid and the second fluid. The inner diameter of an inlet-side header flow path is smaller than the inner diameters of the first inlet connection pipe and the second inlet connection pipe. The inner diameter of an outlet-side headerflow path is smaller than the inner diameters of the first outlet connection pipe and the second outlet connection pipe.

Description

technical field [0001] The present invention relates to heat exchangers and refrigeration systems using the same. In particular, the present invention relates to a plate-fin stacked heat exchanger configured by stacking plate-shaped fins through which a refrigerant flows, and a refrigeration system using the same. Background technique [0002] Generally speaking, in refrigeration systems such as air conditioners and refrigerators, the refrigerant compressed by the compressor circulates through heat exchangers such as condensers and evaporators to exchange heat with the heat-exchanged fluid for cooling or cooling. heating. In this refrigeration system, performance and energy saving as a system are largely influenced by the heat exchange efficiency of the heat exchanger. Therefore, there is a strong demand for high efficiency of heat exchangers. [0003] Among them, the heat exchanger of the refrigeration system generally uses a finned tube type heat exchanger formed by fin...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F28D1/03F28F3/04F28F9/00F28F9/02F28F9/26F25B39/00
CPCF25B39/00F28D1/03F28F3/04F28F9/00F28F9/02F28F9/26
Inventor 奥村拓也山本宪昭名越健二大城崇裕
Owner PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO LTD