EP2314973B1 - Fin-tube heat exchanger - Google Patents

Fin-tube heat exchanger Download PDF

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Publication number
EP2314973B1
EP2314973B1 EP09754418.3A EP09754418A EP2314973B1 EP 2314973 B1 EP2314973 B1 EP 2314973B1 EP 09754418 A EP09754418 A EP 09754418A EP 2314973 B1 EP2314973 B1 EP 2314973B1
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EP
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Prior art keywords
heat transfer
cut
flow direction
current flow
gas current
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EP09754418.3A
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German (de)
English (en)
French (fr)
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EP2314973A1 (en
EP2314973A4 (en
Inventor
Hirokazu Fujino
Toshimitsu Kamada
Haruo Nakata
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Daikin Industries Ltd
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Daikin Industries Ltd
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Publication of EP2314973A4 publication Critical patent/EP2314973A4/en
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F1/00—Tubular elements; Assemblies of tubular elements
    • F28F1/10—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses
    • F28F1/12—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses the means being only outside the tubular element
    • F28F1/24—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses the means being only outside the tubular element and extending transversely
    • F28F1/32—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses the means being only outside the tubular element and extending transversely the means having portions engaging further tubular elements
    • F28F1/325—Fins with openings

Definitions

  • the present invention relates to a fin tube type heat exchanger and more particularly relates to a fin tube type heat exchanger that comprises multiple heat transfer fins, which are disposed in a gas current such that they are lined up and spaced apart in the plate thickness directions, and multiple heat transfer tubes, which are inserted into the heat transfer fins and disposed in directions substantially orthogonal to the gas current flow direction, wherein multiple cut and raised parts, which are lined up from the upstream side to the downstream side in the gas current flow direction, are formed by a cutting and raising fabrication process in the heat transfer fin surfaces on both sides of each of the heat transfer tubes in the vertical directions.
  • cut and raised parts 104a-104c, 104d-104f are formed by a cutting and raising fabrication process in heat transfer fin surfaces 102b on both sides of each of the heat transfer tubes 103 in the vertical directions such that an air current in the vicinity of each of the heat transfer tubes 103 is guided to the rear side of the heat transfer tube 103 in the air current flow direction; furthermore, to prevent drain water generated by the exchange of heat between air and a thermal medium, such as a refrigerant, from pooling in the cut and raised parts 104a-104c, 104d ⁇ 104f and thereby reducing drainage performance, the cut and raised
  • the cut and raised parts 104a-104c. which are lined up from the upstream side to the downstream side in the air current flow direction, and the cut and raised parts 104d ⁇ 404f, which are lined up from the upstream side to the downstream side in the air current flow direction, are formed such that their heights from the heat transfer fin surfaces increase gradually over the entire span toward the downstream side in the air current flow direction (as Patent Document 1, refer to Japanese Laid-open Patent Application Publication No. 2008-111646 ).
  • WO 2007/077968 A1 discloses a heat transfer device capable of promoting a heat transfer effect while limiting an increase in the pressure loss of heat carrying fluid in a heat exchanger where an air current velocity is set to a comparatively low level.
  • a plurality of vertical vortex generating blades are arranged in a span direction on each side of a heat transfer body.
  • Vertical vortex generating blades are oriented in the substantially same direction so as to deflect heat carrying fluid to the same direction to guide the heat carrying fluid to the rear region of the heat transfer body.
  • Each vertical vortex generating blade has a profile of gradually decreasing in its height toward the upstream side in the heat carrying fluid.
  • the heat carrying fluid flowing to the rear while running over a plurality of vertical vortex generating blades forms a plurality of vertical vortexes in the rear of the vertical vortex generating blades.
  • WO 89/ 04447 discloses a heat-exchange tube.
  • On the transverse horizontal ribs of a heat-exchange tube are arranged essentially triangular tabulators which make an angle with the longitudinal plane of the tube which passes through the axis of the tube and extends parallel to the direction of fluid flow.
  • the tabulators are punched out in the plane of the ribs and then bent through approximately 90°. They have edges inclined at an angle to the direction of fluid flow and to the heat-exchange tube. Longitudinal turbulences are thereby generated behind the turbulators, which at this point mix the limiting layers and improve the heat transmission.
  • JP 2008-089237 A discloses a fin tube type heat exchanger which comprises a heat transfer fin and a plurality of heat transfer tubes.
  • the heat transfer fin is disposed in the airflow.
  • the plurality of heat transfer tubes are inserted to the heat transfer fin, and disposed approximately orthogonally to the airflow.
  • the heat transfer fin is provided with a plurality of first cut and raised pieces at a lower side of the heat transfer tubes and a plurality of second cut and raised pieces at an upper side of the heat transfer tubes.
  • a first straight line connecting the plurality of first cut and raised pieces and a second straight line connecting the plurality of second cut and raised pieces are inclined to the airflow flowing direction to guide the airflow to a back side in the flowing direction of the airflow of the heat transfer tubes.
  • the plurality of first cut and raised pieces are formed on positions excluding prescribed positions among a plurality of positions symmetric to the plurality of second cut and raised pieces to a horizontal face passing through a central axes of the heat transfer tubes.
  • a fin tube type heat exchanger is defined by claim 1. It comprises a plurality of heat transfer fins and a plurality of heat transfer tubes.
  • the heat transfer fins are lined up such that they are spaced apart in the plate thickness directions and are disposed in a gas current.
  • the heat transfer tubes are inserted into the plurality of heat transfer fins and are disposed in directions substantially orthogonal to a gas current flow direction.
  • a plurality of cut and raised parts are formed by a cutting and raising fabrication process on both sides of each of the heat transfer tubes in the vertical directions; the plurality of cut and raised parts are inclined with respect to the gas current flow direction such that the gas current in the vicinity of each of the heat transfer tubes is guided to a rear side in the gas current flow direction of that heat transfer tube; the heights of each of the cut and raised parts with respect to the heat transfer fin surface increase gradually toward the downstream side in the gas current flow direction; and, for each of the cut and raised parts, the value calculated by dividing the average height of the front end height, which is the height of the gas current flow direction front end with respect to the heat transfer fin surface, and the rear end height, which is the height of the gas current flow direction rear end with respect to the heat transfer fin surface, by a fin pitch, which is the spacing between the heat transfer fins, is greater than 0.3 and less than 0.6
  • the adoption of a configuration wherein the heat transfer fins are formed such that, with respect to the heat transfer fin surface, the heights of the multiple cut and raised parts lined up from the upstream side to the downstream side in the gas current flow direction increase gradually over the entire span toward the downstream side in the air current flow direction makes it easy to obtain the guide effect wherein the air current in the vicinity of each of the heat transfer tubes is guided to the rear side in the air current flow direction of that heat transfer tube, thereby reducing the corresponding dead water area, as well as to prevent, as much as possible, any increase in ventilation resistance at the cut and raised parts on the upstream side in the air current flow direction; however, attendant with the adoption of such a configuration, if the heights of the cut and raised parts on the upstream side in the air current flow direction with respect to the heat transfer fin surface are too low, then the effect of producing longitudinal vortices behind the cut and raised parts decreases, thereby making it difficult to obtain the heat transfer promotion effect produced by these longitudinal vortices, which is a problem.
  • the inventors of the present application evaluated the heat transfer performance of the cut and raised parts taking ventilation resistance into account and discovered that the heat transfer performance per unit of ventilation resistance can be increased by making the heights of each of the cut and raised parts with respect to the heat transfer fin surface increase gradually toward the downstream side in the gas current flow direction (i.e., making, for each of the cut and raised parts, the rear end height, which is the height with respect to the heat transfer fin surface at the rear end in the gas current flow direction, greater than the front end height, which is the height with respect to the heat transfer fin surface at the front end in the gas current flow direction) and setting the value calculated by dividing the average height of the front end height and the rear end height by
  • the rear end height is assumed to be greater than the front end height for each of the multiple cut and raised parts, which are arranged to be inclined with respect to the gas current flow direction so that the gas current in the vicinity of each of the heat transfer tubes is guided to the rear side in the gas current flow direction of that heat transfer tube, and the relationship between the average height and the fin pitch discussed above applies, regarding the cut and raised parts on the upstream side in the gas current flow direction, the heights of the cut and raised parts that are on the upstream side in the gas current flow direction with respect to the heat transfer fin surface are no longer insufficient; thereby, the effect of generating a longitudinal vortex to the rear of each of the cut and raised parts increases, which makes it possible to improve the heat transfer performance per unit of ventilation resistance (i.e., to improve the heat transfer performance while minimizing any increase in ventilation resistance).
  • the heights of the cut and raised parts that are on the downstream, side in the gas current flow direction with respect to the heat transfer fin surface are no longer excessive, which makes it easy to obtain the guide effect wherein the gas current in the vicinity of each of the heat transfer tubes is guided to the rear side in the gas current flow direction of that heat transfer tube; thereby, the heat transfer performance per unit of ventilation resistance can be improved (i.e., it is possible to prevent an increase in ventilation resistance while maximizing the guide effect).
  • an inclination angle which is an angle formed between a ridge of each of the cut and raised parts and the heat transfer fin surface, is less than 30°.
  • the rear end height is assumed to be greater than the front end height and the relationship between the average height and the fin pitch discussed above applies, if, for example, the front end height of each of the cut and raised parts was made extremely small, then it would be necessary to increase the rear end height of each of the cut and raised parts; thereby, an inclination angle formed by the ridge of each of the cut and raised parts and the heat transfer fin surface would increase.
  • the inventors of the present application evaluated the relationship between the inclination angle and the heat transfer performance per unit of ventilation resistance and discovered that, by making the inclination angle less than 30°, a high heat transfer performance per unit of ventilation resistance can be maintained.
  • the condition of the inclination angle discussed above is further applied with respect to each of the multiple cut and raised parts, which are arranged to be inclined with respect to the gas current flow direction so that the gas current in the vicinity of each of the heat transfer tubes is guided to the rear side in the gas current flow direction of that heat transfer tube, it is possible to reliably obtain the effect of improving heat transfer performance per unit of ventilation resistance by the application of the relationship between the average height and the fin pitch discussed above.
  • the plurality of cut and raised parts are disposed such that their average heights sequentially increase to be greater in the cut and raised parts on the downstream side in the gas current flow direction than in the cut and raised parts on the upstream side in the gas current flow direction.
  • disposing the cut and raised parts such that their average heights increase sequentially to be greater in the cut and raised parts on the downstream side in the gas current flow direction than in the cut and raised parts on the upstream side in the gas current flow direction makes it easier to obtain the guide effect wherein the gas current in the vicinity of each of the heat transfer tubes is guided to the rear side in the gas current flow direction of that heat transfer tube, which in turn makes it possible to reduce the size of the corresponding dead water area.
  • FIG 3 through FIG 7 show the principal parts of a fin tube type heat exchanger 1 according to an embodiment that is not covered by the present invention.
  • FIG 3 is a cross sectional view of the fin tube type heat exchanger 1.
  • FIG 4 is a cross sectional view taken along the I-I line in FIG 3 .
  • FIG 5 is a diagram that schematically shows a cross sectional view taken along the II-II line or along the III-III line in FIG 3 .
  • FIG 6 shows the effect of the shape (i.e., the average height) of the cut and raised part on the promotion of heat transfer.
  • FIG 7 shows the effect of the shape (i.e., the inclination angle) of the cut and raised part on the promotion of heat transfer.
  • the fin tube type heat exchanger 1 is a cross fin and tube type heat exchanger and principally comprises multiple plate shaped heat transfer fins 2 and multiple heat transfer tubes 3.
  • the heat transfer fins 2 are lined up such that they are spaced apart by a prescribed spacing in the plate thickness directions in the state wherein their flat surfaces generally run along the direction of flow of a current of gas, such as air.
  • Multiple through holes 2a which are spaced apart in directions substantially orthogonal to the gas current flow direction, are formed in each of the heat transfer fins 2.
  • the portion that surrounds each of the through holes 2a is an annular collar part 8, which projects in one of the plate thickness directions of each of the heat transfer fins 2.
  • Each of the collar parts 8 is configured such that it makes contact with the surface that is on the side opposite the surface whereon the collar part 8 of the heat transfer fin 2 that is adjacent in the plate thickness directions is formed and thereby maintains a prescribed spacing between the heat transfer fins 2 in the plate thickness directions (hereinbelow, this prescribed spacing is called a fin pitch FP ) .
  • Each of the heat transfer tubes 3 is a tube member wherethrough a thermal medium, such as a refrigerant, flows; furthermore, the heat transfer tubes 3 are inserted into the multiple heat transfer fins 2 and are disposed in the directions substantially orthogonal to the gas current flow direction. Specifically, the heat transfer tubes 3 are inserted through the through holes 2a formed in the heat transfer fins 2 and are tightly sealed to the inner surfaces of the collar parts 8 by a tube expanding procedure that is performed when the fin tube type heat exchanger 1 is assembled.
  • the fin tube type heat exchanger 1 of the present embodiment is used in the state wherein the fin tube type heat exchanger 1 is installed such that the directions in which the multiple heat transfer tubes 3 are arrayed are substantially the vertical directions (namely, FIG. 3 shows only two heat transfer tubes 3 of the multiple heat transfer tubes 3 ). Consequently, the gas current flows such that it traverses the fin tube type heat exchanger 1 in substantially a horizontal direction. Furthermore, when the terms “upstream,” “above,” “downstream,” and “below” are used in the explanation below, they refer to the direction in which the heat transfer tubes 3 are arrayed.
  • each of the heat transfer fins 2 multiple cut and raised parts 4a-4f are formed in a heat transfer fin surface 2b by a cutting and raising fabrication process on both sides of each of the heat transfer tubes 3 in the vertical directions (namely, above and below each of the heat transfer tubes 3 ) such that they are lined up from the upstream to the downstream side in the gas current flow direction (in the present embodiment, three below each of the heat transfer tubes 3 and three above each of the heat transfer tubes 3 ).
  • the three cut and raised parts below each of the heat transfer tubes 3 are the first cut and raised parts 4a-4c
  • the three cut and raised parts above each of the heat transfer tubes 3 are the second cut and raised parts 4d-4f.
  • Each of the cut and raised parts 4a-4f is a substantially trapezoidal portion formed by making a cut in the heat transfer fin 2 and then raising the cut portion in the plate thickness directions of the heat transfer fin 2. Furthermore, attendant with the cutting and raising of the cut and raised parts 4a-4f, substantially trapezoidal slit holes 7a-7f are formed corresponding to each of the cut and raised parts 4a-4f in portions adjacent to each of the cut and raised parts 4a-4f of each of the heat transfer fins 2.
  • the first cut and raised parts 4a-4c and the second cut and raised parts 4d-4f are arranged to be inclined with respect to the gas current flow direction such that the gas current in the vicinity of each of the heat transfer tubes 3 is guided to the rear side of the heat transfer tube 3 in the gas current flow direction. More specifically, the first cut and raised parts 4a-4c are disposed such that an angle of attack ⁇ 1 of each of the first cut and raised parts 4a-4c with respect to the gas current flow direction is positive and such that they are lined up straightly along a straight line M1.
  • the second cut and raised parts 4d-4f are disposed such that an angle of attack ⁇ 2 of each of the second cut and raised parts 4d-4f with respect to the gas current flow direction is positive and such that they are lined up straightly along a straight line M2.
  • the angle of attacks ⁇ 1 , ⁇ 2 are positive if each of the cut and raised parts 4a-4f are inclined such that each of gas current flow direction front ends 5a-5f of the cut and raised parts 4a-4f are positioned farther from the corresponding heat transfer tube 3 than are each of gas current flow direction rear ends 6a-6f of the cut and raised parts 4a-4f.
  • the heights of each of the cut and raised parts 4a-4f from the heat transfer fin surface 2b gradually increase toward the downstream side in the gas current flow direction. More specifically, in the first cut and raised part 4a, the height of the rear end 6a with respect to the heat transfer fin surface 2b is greater than the height of the front end 5a with respect to the heat transfer fin surface 2b; in the first cut and raised part 4b, the height of the rear end 6b with respect to the heat transfer fin surface 2b is greater than the height of the front end 5b with respect to the heat transfer fin surface 2b; in the first cut and raised part 4c, the height of the rear end 6c with respect to the heat transfer fin surface 2b is greater than the height of the front end 5c with respect to the heat transfer fin surface 2b; in the second cut and raised part 4d, the height of the rear end 6d with respect to the heat transfer fin surface 2b is greater than the height of the front end 5d with respect to the heat transfer fin surface 2b; in the second cut and raised part 4a, the height of the rear
  • front end height a be the height of each of the cut and raised parts 4a-4f with respect to the heat transfer fin surface 2b at the front end in the gas current flow direction
  • rear end height b be the height of each of the cut and raised parts 4a-4f with respect to the heat transfer fin surface 2b at the rear end in the gas current flow direction
  • average height H be the average value of the front end height a and the rear end height b (i.e., ( a + b )/2) (refer to FIG. 5 )
  • the value calculated by dividing the average height H by the fin pitch FP i.e., ⁇ ( a + b )/2 ⁇ / FP ) is set such that the value is greater than 0.3 and less than 0.6.
  • the inventor of the present application discovered the relationship between the average height H of each of the cut and raised parts 4a-4f and the fin pitch FP by evaluating the heat transfer performance of the cut and raised parts 4a-4f while taking ventilation resistance into account.
  • the rear end height b is assumed to be greater than the front end height a for each of the multiple cut and raised parts 4a-4f, which are arranged to be inclined with respect to the gas current flow direction so that the gas current in the vicinity of each of the heat transfer tubes 3 is guided to the rear side in the gas current flow direction of that heat transfer tube 3, and the relationship between the average height H and the fin pitch FP discussed above applies, regarding the cut and raised parts 4a-4f on the upstream side in the gas current flow direction, the heights of the cut and raised parts 4a-4f that are on the upstream side in the gas current flow direction (e.g., the cut and raised parts 4a, 4d, which are disposed most on the upstream side in the gas current flow direction) with respect to the heat transfer fin surface 2b are no longer insufficient; thereby, the effect of generating a longitudinal vortex to the rear of each of the cut and raised parts 4a-4f increases, which makes it possible to improve the heat transfer performance per
  • the heights of the cut and raised parts 4a-4f that are on the downstream side in the gas current flow direction are no longer excessive, which makes it easy to obtain the guide effect wherein the gas current in the vicinity of each of the heat transfer tubes 3 is guided to the rear side in the gas current flow direction of that heat transfer tube 3; thereby, the heat transfer performance per unit of ventilation resistance can be improved (i.e., it is possible to prevent an increase in ventilation resistance while maximizing the guide effect).
  • the fin tube type heat exchanger 1 of the present embodiment it is possible to achieve both heat transfer performance and ventilation performance of the cut and raised parts 4a-4f and thereby to make a high performance heat exchanger.
  • the rear end height b is assumed to be greater than the front end height a and the relationship between the average height H and the fin pitch FP discussed above applies, if, for example, the front end height a of each of the cut and raised parts 4a-4f was made extremely small, then it would be necessary to increase the rear end height b of each of the cut and raised parts 4a-4f; thereby, an inclination angle ⁇ (refer to FIG. 5 ) formed by the ridge of each of the cut and raised parts 4a-4f and the heat transfer fin surface 2b would increase.
  • the ridges of each of the cut and raised parts 4a-4f refer to the lines that connect the tips of the front ends 5a-5f of the cut and raised parts 4a-4f that are farthest from the heat transfer fin surface 2b and the tips of the rear ends 6a-6f of the cut and raised parts 4a-4f that are farthest from the heat transfer fin surface 2b.
  • the inclination angle ⁇ is the narrow angle formed between the ridge of each of the cut and raised parts 4a-4f and the heat transfer fin surface 2b.
  • the inventors of the present application evaluated the relationship between the inclination angle ⁇ and the heat transfer performance per unit of ventilation resistance and discovered that, as shown in FIG. 7 , there is a relationship between the inclination angle ⁇ and the value calculated by dividing the ventilation resistance rate of increase ⁇ Pa when the number of cut and raised parts was increased by the coefficient of heat transfer rate of increase ⁇ ha when the number of cut and raised parts was increased (i.e., ⁇ Pa / ⁇ ha ) and, based on this relationship, derived the inclination angle ⁇ wherein a high heat transfer performance per unit of ventilation resistance can be maintained to be in the range of less than 30°.
  • the condition of the inclination angle ⁇ discussed above is further applied with respect to each of the multiple cut and raised parts 4a-4f, which are arranged to be inclined with respect to the gas current flow direction so that the gas current in the vicinity of each of the heat transfer tubes 3 is guided to the rear side in the gas current flow direction of that heat transfer tube 3, it is possible to reliably obtain the effect of improving heat transfer performance per unit of ventilation resistance by the application of the relationship between the average height H and the fin pitch FP discussed above.
  • disposing the first cut and raised parts 4a-4c such that their average heights H increase sequentially to be greater in the cut and raised parts on the downstream side in the gas current flow direction than in the cut and raised parts on the upstream side in the gas current flow direction and disposing the second cut and raised parts 4d ⁇ 4f such that their average heights H sequentially increase to be greater in the cut and raised parts on the downstream side in the gas current flow direction than in the cut and raised parts on the upstream side in the gas current flow direction makes it easier to obtain the guide effect wherein the gas current in the vicinity of each of the heat transfer tubes 3 is guided to the rear side in the gas current flow direction of that heat transfer tube 3, which in turn makes it possible to reduce the size of the corresponding dead water area, (3)
  • heat transfer fins 12 which have creases 19a-19c that are parallel to the vertical directions, may be adopted as the heat transfer fins and three first cut and raised parts 14a-14c, which are lined up from the upstream side to the downstream side in the gas current flow direction, may be formed by a cutting and raising fabrication process on the lower side of each of the heat transfer tubes 3 in the vertical directions, specifically in a heat transfer fin surface 12c between the gas current flow direction front end of the heat transfer fin 12 and the crease 19a on the downstream side thereof, in a heat transfer fm surface 12d between the crease 19a and the crease 19b on the downstream side thereof, and in a heat transfer fin surface 12e between the
  • each part of the heat transfer fins 12 in these embodiments is assigned a reference numeral that is calculated by adding 10 to the value of the same part as for the earlier embodiments (not covered) discussed above, the angle of attacks in the present embodiments (covered by the invention) are defined by adding a numeral "1" behind the reference symbol used for the same angle of attack in the embodiment discussed above, and explanations of each part of each of the heat transfer fins 12-excepting the creases 19a-19c and the heat transfer fin surfaces 12c-12f-are therefore omitted.
  • the present invention can be widely adapted to a fin tube type heat exchanger that comprises: multiple heat transfer fins, which are lined up such that they are spaced apart in the plate thickness directions and disposed in a gas current; and multiple heat transfer tubes, which are inserted into the multiple heat transfer fins and disposed in directions substantially orthogonal to the gas current flow direction; wherein, on the heat transfer fin surface on both sides of each of the heat transfer tubes in the vertical directions, multiple cut and raised parts, which are lined up from the upstream side to the downstream side in the gas current flow direction, are formed by a cutting and raising fabrication process.

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  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Geometry (AREA)
  • Thermal Sciences (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
EP09754418.3A 2008-05-27 2009-05-25 Fin-tube heat exchanger Active EP2314973B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2008138145A JP5304024B2 (ja) 2008-05-27 2008-05-27 フィンチューブ型熱交換器
PCT/JP2009/002292 WO2009144909A1 (ja) 2008-05-27 2009-05-25 フィンチューブ型熱交換器

Publications (3)

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EP2314973A1 EP2314973A1 (en) 2011-04-27
EP2314973A4 EP2314973A4 (en) 2014-04-02
EP2314973B1 true EP2314973B1 (en) 2019-07-10

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US (1) US20110067849A1 (ko)
EP (1) EP2314973B1 (ko)
JP (1) JP5304024B2 (ko)
KR (1) KR20110010133A (ko)
CN (1) CN102027307A (ko)
AU (1) AU2009252652B2 (ko)
ES (1) ES2746909T3 (ko)
WO (1) WO2009144909A1 (ko)

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JP2020535384A (ja) * 2017-09-30 2020-12-03 サンホワ（ハンチョウ） マイクロ チャンネル ヒート イクスチェンジャー カンパニー リミテッド 熱交換器及びフィン
CN108007258A (zh) * 2017-10-18 2018-05-08 衢州学院 金属聚合物复合式微结构换热器的传热及成型方法
US11835306B2 (en) * 2021-03-03 2023-12-05 Rheem Manufacturing Company Finned tube heat exchangers and methods for manufacturing same
CN113758353A (zh) * 2021-08-13 2021-12-07 博格思众（常州）热交换器有限公司 翅片、换热器和制冷系统

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Publication number Publication date
AU2009252652B2 (en) 2012-05-24
EP2314973A1 (en) 2011-04-27
AU2009252652A1 (en) 2009-12-03
CN102027307A (zh) 2011-04-20
US20110067849A1 (en) 2011-03-24
JP2009287797A (ja) 2009-12-10
ES2746909T3 (es) 2020-03-09
JP5304024B2 (ja) 2013-10-02
KR20110010133A (ko) 2011-01-31
WO2009144909A1 (ja) 2009-12-03
EP2314973A4 (en) 2014-04-02

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