WO2005026638A1 - Echangeur thermique - Google Patents

Echangeur thermique Download PDF

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Publication number
WO2005026638A1
WO2005026638A1 PCT/JP2004/013389 JP2004013389W WO2005026638A1 WO 2005026638 A1 WO2005026638 A1 WO 2005026638A1 JP 2004013389 W JP2004013389 W JP 2004013389W WO 2005026638 A1 WO2005026638 A1 WO 2005026638A1
Authority
WO
WIPO (PCT)
Prior art keywords
heat exchanger
tube
fluid
inner tube
exchanger according
Prior art date
Application number
PCT/JP2004/013389
Other languages
English (en)
Japanese (ja)
Inventor
Osao Kido
Takumi Kida
Tomoko Hamagawa
Yuko Okuda
Seishi Imai
Original Assignee
Matsushita Electric Industrial Co., Ltd.
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Matsushita Electric Industrial Co., Ltd. filed Critical Matsushita Electric Industrial Co., Ltd.
Priority to GB0604225A priority Critical patent/GB2421071B/en
Publication of WO2005026638A1 publication Critical patent/WO2005026638A1/fr

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
    • F28D7/00—Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall
    • F28D7/10—Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall the conduits being arranged one within the other, e.g. concentrically
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
    • F28D7/00—Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall
    • F28D7/10—Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall the conduits being arranged one within the other, e.g. concentrically
    • F28D7/14—Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall the conduits being arranged one within the other, e.g. concentrically both tubes being bent
    • 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
    • F28F1/42—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses the means being both outside and inside the tubular element
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F13/00—Arrangements for modifying heat-transfer, e.g. increasing, decreasing
    • F28F13/06—Arrangements for modifying heat-transfer, e.g. increasing, decreasing by affecting the pattern of flow of the heat-exchange media

Definitions

  • the present invention relates to a liquid-refrigerant heat exchanger such as a water-refrigerant heat exchanger of a heat pump water heater.
  • This product uses a water-refrigerant heat exchanger that heats water with a high-temperature refrigerant.
  • the refrigerant pipe 2 is spirally wound around the core pipe 1.
  • the refrigerant (R) is configured such that it is branched by the flow divider 3 into a plurality of branched refrigerant pipes 2 a, 2 b and 2 c and flows.
  • the conventional heat exchanger configured as described above has a simple configuration in which the refrigerant tube 2 is simply wound around the outer periphery of the core tube 1, and is said to be easy to manufacture.
  • the core tube 1 and the refrigerant tube 2 are theoretically In general, it is a line contact, and in order to increase the contact area for heat exchange, it is necessary to make the refrigerant pipes 2 thin and increase the number thereof.
  • the present invention solves the conventional problems, and provides a heat exchanger having a very simple structure and realizing high heat exchange efficiency at the same time. Disclosure of the invention
  • the present invention comprises: an inner pipe having a double wall in which a first wall and a second wall are in close contact with each other; and an outer pipe having the inner pipe therein substantially coaxially with the inner pipe.
  • a heat exchanger in which a first fluid flows inside a tube and a second fluid flows through an annular portion between the inner tube and the outer tube.
  • FIG. 1 is a partial cross-sectional view in the tube axis direction of a heat exchanger according to an embodiment of the present invention.
  • FIG. 3 is a characteristic diagram for explaining the effect of the ratio of the height of the annular portion to the outer diameter of the inner tube in the heat exchanger according to the embodiment of the present invention.
  • FIG. 4 is a diagram illustrating an example of use of the heat exchanger according to the embodiment of the present invention.
  • FIG. 5 is a tube shaft illustrating another example of the heat exchanger according to the embodiment of the present invention.
  • FIG. 6 is a structural diagram of a conventional heat exchanger. BEST MODE FOR CARRYING OUT THE INVENTION
  • FIGS. 6 are schematic diagrams, and do not show the positions of the dimensions correctly.
  • HZD may be changed from 0.03 to 0.07.
  • the tip 7a of the fin 7 of the outer tube 6 facing the outer surface of the inner tube 4 is in contact with the inner tube 4, the height of the annular portion between the inner tube 4 and the outer tube 6 (H ) Is kept constant.
  • the fins 7 can reduce the fluid diameter of the flow path in the annular portion and increase the heat transfer coefficient of carbon dioxide.
  • the inner pipe 4 is made of copper and the outer pipe 6 is made of aluminum, the weight can be reduced while ensuring corrosion resistance to water.
  • the heat exchanger of the present embodiment includes an inner pipe 4 having a double wall 5 in which the first wall 5a and the second wall 5b are in close contact with each other, and an inner pipe 4 coaxial with the inner pipe 4. And an outer tube 6 having an inner tube 4. Then, the first fluid flows inside the inner pipe 4, and the second fluid flows through the annular portion between the inner pipe 4 and the outer pipe 6.
  • the flow path of the first fluid and the second fluid Since a sufficient contact area is secured with the flow channel, high heat exchange efficiency can be obtained.
  • a plurality of fins 7 as protrusions are provided on the inner surface of the outer tube 6, and the tip 7 a of the fin 7 contacts the outer surface of the inner tube 4. In this way, the minimum height of the annular portion can be ensured by the projection.
  • the heat exchanger can be stored more easily.
  • the average temperature difference between the first fluid and the second fluid can be increased, and the heat exchange amount can be increased.

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Geometry (AREA)
  • Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
  • Details Of Fluid Heaters (AREA)

Abstract

L'invention concerne un échangeur thermique qui augmente l'efficacité de l'échange thermique entre deux fluides. Cet échangeur thermique comprend un tube interne (4) et un tube externe (6). Le tube interne (4) a une double paroi (5), la première paroi (5a) et le deuxième paroi (5b) étant en étroit contact mutuel. Le tube externe (6) est sensiblement coaxial avec le tube interne (4) qu'il contient. Un premier fluide s'écoule à l'intérieur du tube interne (4) et un deuxième fluide dans la partie annulaire entre le tube interne (4) et le tube externe (6). Malgré la structure très simple de cet échangeur thermique, dont la double paroi (5) assure la sécurité entre le premier fluide et le deuxième fluide, une zone de contact suffisante se trouve entre le premier passage fluidique et le deuxième passage fluidique, se traduisant par un échange thermique de grande efficacité.
PCT/JP2004/013389 2003-09-09 2004-09-08 Echangeur thermique WO2005026638A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB0604225A GB2421071B (en) 2003-09-09 2004-09-08 Heat exchanger

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2003316376A JP2005083667A (ja) 2003-09-09 2003-09-09 熱交換器
JP2003-316376 2003-09-09

Publications (1)

Publication Number Publication Date
WO2005026638A1 true WO2005026638A1 (fr) 2005-03-24

Family

ID=34308450

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2004/013389 WO2005026638A1 (fr) 2003-09-09 2004-09-08 Echangeur thermique

Country Status (4)

Country Link
JP (1) JP2005083667A (fr)
CN (1) CN100439848C (fr)
GB (1) GB2421071B (fr)
WO (1) WO2005026638A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102007007229A1 (de) * 2007-02-14 2008-08-21 Behr Gmbh & Co. Kg Wärmeübertrager, insbesondere Kraftstoffkühler
WO2018223406A1 (fr) * 2017-06-09 2018-12-13 何家密 Échange de chaleur du type à entraînement et son utilisation

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4736533B2 (ja) * 2005-05-18 2011-07-27 パナソニック株式会社 熱交換器
PT103750A (pt) * 2007-05-23 2008-11-24 Trieco Climatizacao Lda Sistema de climatização com elevada eficiência energética
JP2009162395A (ja) * 2007-12-28 2009-07-23 Showa Denko Kk 二重管式熱交換器
JP5393606B2 (ja) * 2010-07-12 2014-01-22 株式会社Ｃｋｕ 熱交換器
CN102679773A (zh) * 2012-04-01 2012-09-19 合肥科烨电物理设备制造有限公司 两级梯度传热换热器
CN103499226A (zh) * 2013-09-24 2014-01-08 无锡市威海达机械制造有限公司 换热器
DE102014217503A1 (de) * 2014-09-02 2016-03-03 Illinois Tool Works Inc. Spülmaschine mit einer Flüssigkeits-Transportleitung
CN105003333A (zh) * 2015-08-10 2015-10-28 广西玉柴机器股份有限公司 船舶发动机的组合式换热器
CN105841388B (zh) * 2016-03-30 2019-05-14 杨溢 一种综合利用废热的盐溶液制冷机
CN106288908A (zh) * 2016-08-30 2017-01-04 蔡蔚珍 多功能汽车散热器
CN112577338B (zh) 2020-12-30 2023-07-25 乔治洛德方法研究和开发液化空气有限公司 内部安置有换热设备的高温流体运输管道，适用的换热设备及换热方法

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58198689A (ja) * 1982-05-14 1983-11-18 Matsushita Electric Ind Co Ltd 熱交換器
JPH03251686A (ja) * 1990-02-28 1991-11-11 Shinko Metal Prod Kk 熱交換器
JPH058261U (ja) * 1991-07-11 1993-02-05 三菱重工業株式会社 熱交換器
JP2003202194A (ja) * 2002-01-10 2003-07-18 Daikin Ind Ltd 熱交換器

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2393068Y (zh) * 1999-05-24 2000-08-23 上海得灵电器实业有限公司 一种扰流传热管
NL1012676C2 (nl) * 1999-07-22 2001-01-23 Spiro Research Bv Werkwijze voor het vervaardigen van een dubbelwandige warmtewisselbuis met lekdetectie alsmede een dergelijke warmtewisselbuis.
CN2410610Y (zh) * 2000-01-21 2000-12-13 广州市昆仑工业技术有限公司 整体式高效传热管

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58198689A (ja) * 1982-05-14 1983-11-18 Matsushita Electric Ind Co Ltd 熱交換器
JPH03251686A (ja) * 1990-02-28 1991-11-11 Shinko Metal Prod Kk 熱交換器
JPH058261U (ja) * 1991-07-11 1993-02-05 三菱重工業株式会社 熱交換器
JP2003202194A (ja) * 2002-01-10 2003-07-18 Daikin Ind Ltd 熱交換器

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102007007229A1 (de) * 2007-02-14 2008-08-21 Behr Gmbh & Co. Kg Wärmeübertrager, insbesondere Kraftstoffkühler
WO2018223406A1 (fr) * 2017-06-09 2018-12-13 何家密 Échange de chaleur du type à entraînement et son utilisation

Also Published As

Publication number Publication date
GB0604225D0 (en) 2006-04-12
GB2421071B (en) 2007-10-17
CN100439848C (zh) 2008-12-03
GB2421071A (en) 2006-06-14
JP2005083667A (ja) 2005-03-31
CN1853080A (zh) 2006-10-25

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