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Heat exchanger and refrigeration cycle device

A heat exchanger and refrigeration cycle technology, applied in heat exchange equipment, indirect heat exchangers, heat exchanger types, etc., can solve the problems of prolonging the defrosting operation time, reducing the average heating capacity, and reducing comfort, etc. To achieve the effect of improving heat transfer performance and improving drainage

Active Publication Date: 2019-11-15
MITSUBISHI ELECTRIC CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, heat exchangers using flat tubes need to prolong the defrosting operation time, resulting in a decrease in comfort and a decrease in average heating capacity.

Method used

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  • Heat exchanger and refrigeration cycle device
  • Heat exchanger and refrigeration cycle device
  • Heat exchanger and refrigeration cycle device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment approach 1

[0035] figure 1 It is a refrigerant circuit diagram showing the refrigeration cycle apparatus according to Embodiment 1 of the present invention.

[0036] The refrigeration cycle apparatus 100 has a compressor 200, a condenser 300, an expansion mechanism 400, and an evaporator 500, and is configured by sequentially connecting them with refrigerant piping.

[0037] The compressor 200 sucks in refrigerant, compresses the refrigerant, and turns it into a high-temperature and high-pressure gas refrigerant. The condenser 300 exchanges heat between the refrigerant flowing inside and a heat exchange object such as air, and is, for example, a finned tube heat exchanger. In the vicinity of the condenser 300, a blower 301 for supplying air to be heat-exchanged to the condenser 300 is provided. The expansion mechanism 400 is, for example, an expansion valve, and decompresses and expands the refrigerant. The evaporator 500 exchanges heat between the refrigerant flowing inside and a hea...

Embodiment approach 2

[0083] In Embodiment 1, the inclination of the lower surface 15c of the heat transfer tube 15 and the inclination of the lower surface 25c of the heat transfer tube 25 are set to be the same. Not limited thereto, the inclination of the lower surface 15c of the heat transfer tube 15 and the inclination of the lower surface 25c of the heat transfer tube 25 may be different, and the heat exchanger 1 may be configured as follows. In addition, in Embodiment 2, items that are not particularly described are the same as in Embodiment 1, and the same functions and configurations are described using the same reference numerals.

[0084] Image 6 It is a front view showing the heat exchanger according to Embodiment 2 of the present invention. Figure 7 It is an enlarged view (front view) of main parts showing the fins of the heat exchanger. in addition, Figure 8 will be Image 6 An enlarged view of the main part obtained by enlarging a part of .

[0085] In addition, in Image 6 I...

Embodiment approach 3

[0092] In Embodiment 1 and Embodiment 2, the intersection point A is located closer to the heat transfer tube 25 side than the intersection point B is. Without being limited thereto, in the heat exchanger 1 shown in Embodiment 1 and Embodiment 2, the present invention can be practiced even if the positions of the heat transfer tubes 25 are shifted upward so that the positions of the intersection point A and the intersection point B are aligned. . In Embodiment 3, an example in which the position of the heat transfer tube 25 is shifted upward in the heat exchanger 1 shown in Embodiment 1 so that the positions of the intersection point A and the intersection point B are aligned is shown and described. In addition, in Embodiment 3, items that are not particularly described are the same as those in Embodiment 1 or Embodiment 2, and the same functions and configurations are described using the same reference numerals.

[0093] Figure 9 It is a front view showing the heat exchang...

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PUM

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Abstract

A heat exchanger is provided with a first fin; a second fin; a first heat transfer tube penetrating the first fin by being separated from an upstream end section of the first fin by a first specifieddistance; and a second heat transfer tube penetrating the second fin by being separated from an upstream end section of the second fin by a second specified distance. When the first heat transfer tubeand the second heat transfer tube are observed such that the lower surface of the first heat transfer tube is horizontal, in a longitudinal plane perpendicular to the direction in which the first heat transfer tube penetrates the first fin, the upper surfaces of the first and second heat transfer tubes are inclined downward toward the upstream end sections of the first and second fins, an upper end of the second heat transfer tube is positioned above the lower surface of the first heat transfer tube, and an intersection point A, which is a point where an extension line of the upper surface ofthe second heat transfer tube, and an extension line of the lower surface of the first heat transfer tube intersect each other, is positioned further toward the second heat transfer tube side than anintersection point B, which is a point where the extension line of the upper surface of the second heat transfer tube and an extension line of the lower surface of the second heat transfer tube intersect each other.

Description

technical field [0001] The present invention relates to a heat exchanger capable of improving both drainage performance and heat transfer performance, and a refrigeration cycle device including the heat exchanger. Background technique [0002] Conventionally, there is known a heat exchanger in which two or more finned and tube-type heat exchange parts are arranged side by side along the flow direction of air blown laterally from the blower. Specifically, each heat exchange section of the heat exchanger includes a plurality of heat transfer tubes and a plurality of fins extending in the vertical direction. The plurality of fins are arranged side by side at predetermined intervals in a lateral direction substantially perpendicular to a flow direction of air. The plurality of heat transfer tubes are arranged in parallel in the vertical direction at predetermined intervals, and penetrate each fin along the direction in which the fins are arranged in parallel. In addition, the ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F28F1/32F28F1/02
CPCF28F1/32F28F2250/02F28F2215/12F28F1/022F28F13/06F28F17/005F28D1/05383F28D2021/0068F24F1/14F28D2021/0084
Inventor 八柳晓前田刚志中村伸
Owner MITSUBISHI ELECTRIC CORP