JPS61228292A - Heat transfer tube with heat pipe built-in fins - Google Patents

Heat transfer tube with heat pipe built-in fins

Info

Publication number
JPS61228292A
JPS61228292A JP6808585A JP6808585A JPS61228292A JP S61228292 A JPS61228292 A JP S61228292A JP 6808585 A JP6808585 A JP 6808585A JP 6808585 A JP6808585 A JP 6808585A JP S61228292 A JPS61228292 A JP S61228292A
Authority
JP
Japan
Prior art keywords
fins
heat
heat transfer
heat pipe
tube
Prior art date
Legal status (The legal status 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 status listed.)
Granted
Application number
JP6808585A
Other languages
Japanese (ja)
Other versions
JPH0519077B2 (en
Inventor
Yukio Yamada
幸生 山田
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
National Institute of Advanced Industrial Science and Technology AIST
Original Assignee
Agency of Industrial Science and Technology
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 Agency of Industrial Science and Technology filed Critical Agency of Industrial Science and Technology
Priority to JP6808585A priority Critical patent/JPS61228292A/en
Publication of JPS61228292A publication Critical patent/JPS61228292A/en
Publication of JPH0519077B2 publication Critical patent/JPH0519077B2/ja
Granted legal-status Critical Current

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
    • F28D15/00—Heat-exchange apparatus with the intermediate heat-transfer medium in closed tubes passing into or through the conduit walls ; Heat-exchange apparatus employing intermediate heat-transfer medium or bodies
    • F28D15/02—Heat-exchange apparatus with the intermediate heat-transfer medium in closed tubes passing into or through the conduit walls ; Heat-exchange apparatus employing intermediate heat-transfer medium or bodies in which the medium condenses and evaporates, e.g. heat pipes
    • 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
    • F28D15/00—Heat-exchange apparatus with the intermediate heat-transfer medium in closed tubes passing into or through the conduit walls ; Heat-exchange apparatus employing intermediate heat-transfer medium or bodies
    • F28D15/02—Heat-exchange apparatus with the intermediate heat-transfer medium in closed tubes passing into or through the conduit walls ; Heat-exchange apparatus employing intermediate heat-transfer medium or bodies in which the medium condenses and evaporates, e.g. heat pipes
    • F28D15/04—Heat-exchange apparatus with the intermediate heat-transfer medium in closed tubes passing into or through the conduit walls ; Heat-exchange apparatus employing intermediate heat-transfer medium or bodies in which the medium condenses and evaporates, e.g. heat pipes with tubes having a capillary structure

Landscapes

  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Sustainable Development (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)

Abstract

PURPOSE:To raise heat transfer rates of heating tubes correspondingly even when the length of fins is increased by a method in which heat is supplied and received between the whole surface containing the tips of fins and a heating tube through which two gas-liquid phases flow flows, and the heat transfer tube consists of fins provided to the heating tube and wicks provided to the inner walls of the spaces of the heat pipe. CONSTITUTION:Liquid flowing in a heating tube 1 is sent to near the tips of the spaces 4 of a heat pipe by the capillary phenomenon of wicks 5. Fine 3 are heated by heating medium to high temperatures, and liquid impregnated into the wicks 5 is vaporized. The vaporized liquid is sent into the tube 2 and liquefied by cooling or mixed into two-phase flow and sent. The liquid impregnated into the wicks 5 is vaporized by heat of the fins and the temperature distribution in the whole of the fins is made constant. Therefore, the sizes of the fins can be increased to desired ones and the heat transfer rate of the heat pipe can be raised.

Description

【発明の詳細な説明】 （産業上の利用分野） 本発明は伝熱管のフィンに関し、さらに詳しくは該フィ
ンにヒートパイプを内蔵させてフィンによる伝熱効果を
向上させた伝熱管に関する。DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to the fins of a heat exchanger tube, and more particularly to a heat exchanger tube in which a heat pipe is built into the fins to improve the heat transfer effect of the fins.

（従来の技術） 伝熱管内外の熱伝達率を向上させるため伝熱管に円盤状
のフィンを設けることは従来公知である。(Prior Art) It is conventionally known to provide a heat exchanger tube with disc-shaped fins in order to improve the heat transfer coefficient inside and outside the heat exchanger tube.

（発明が解決しようとする問題点） この公知の伝熱管では、フィンの長さが所定長さ以上と
なると、それ以上熱伝達率に寄与しなくなってしまう、
その理由は、フィンが長くなると、フィンの半径方向に
おける温度分布がフィン先端付近で一定となり、フィン
先端付近のフィン一度が伝熱管外の加熱媒体の温度と略
等しくなってしまう。このため、長くなった部分が熱伝
達に役立たないからである。(Problems to be Solved by the Invention) In this known heat transfer tube, when the length of the fins exceeds a predetermined length, they no longer contribute to the heat transfer coefficient.
The reason is that as the fins become longer, the temperature distribution in the radial direction of the fins becomes constant near the fin tips, and the temperature of the fins near the fin tips becomes approximately equal to the temperature of the heating medium outside the heat exchanger tube. This is because the elongated portion is not useful for heat transfer.

そこで、本発明の目的はフィンの長さを長くしてもそれ
に見合うだけ熱伝達率を向上させることのでき°るよう
にした伝熱管を提供せんとするにある。SUMMARY OF THE INVENTION Therefore, an object of the present invention is to provide a heat transfer tube in which the heat transfer coefficient can be improved commensurately even when the length of the fins is increased.

（問題点を解決するための手段） 本発明の特徴とするところは、気液二相流が流動する伝
熱管に設けられたフィンと、該フィンの内部に形成され
、前記伝熱管内に連通されたヒートパイプ空間と、該ヒ
ートパイプ空間の内壁に設けられたウィックとがらなり
、前記フィンの先端と前記伝熱管内との間で熱授受を行
わせるところにある。(Means for Solving the Problems) The present invention is characterized by a fin provided on a heat exchanger tube through which a gas-liquid two-phase flow flows, and a fin formed inside the fin and communicating with the inside of the heat exchanger tube. The heat pipe space is made up of a heat pipe space and a wick provided on the inner wall of the heat pipe space, and heat is exchanged between the tips of the fins and the inside of the heat transfer tube.

（実施例） 以下、図によって本発明の一実施例について説明する。(Example) Hereinafter, one embodiment of the present invention will be described with reference to the drawings.

伝熱管１の管内２には気液二相流がＦのように流れてお
り、管外から熱を受けている。A gas-liquid two-phase flow flows in the tube 2 of the heat exchanger tube 1 as shown in F, and receives heat from outside the tube.

伝熱管１には円盤状のフィン３が設けられており、フィ
ン３の内部にはヒートパイプ空間４が形成されている。The heat exchanger tube 1 is provided with disc-shaped fins 3, and a heat pipe space 4 is formed inside the fins 3.

ヒートパイプ空間４は伝熱管１の管内２に連通されてお
り、さらにヒートバイブ空間４の内壁にはウィック５が
設けられている。The heat pipe space 4 is communicated with the inside 2 of the heat transfer tube 1, and a wick 5 is provided on the inner wall of the heat vibe space 4.

加熱媒体はＧのように流れてフィン３に熱を与えている
。The heating medium flows like G and gives heat to the fins 3.

（作用） 伝熱管１内を流れる液体はウィック５の毛細管現象によ
りヒートパイプ空間４の先端付近まで送られる。フィン
３は加熱媒体により加熱されて高温となっており、ウィ
ック５に浸透した液体を蒸発させる。蒸発した液体は管
内２へ送られ、冷却されて液化するか、あるいは二相流
の中に混入されて送られる。(Function) The liquid flowing inside the heat transfer tube 1 is sent to the vicinity of the tip of the heat pipe space 4 due to the capillary action of the wick 5. The fins 3 are heated by a heating medium to a high temperature, and evaporate the liquid that has penetrated into the wick 5. The evaporated liquid is sent into the pipe 2, where it is cooled and liquefied, or mixed into a two-phase flow and sent.

なお、フィン３の加熱は、フィン３の全面で行なわれる
ものとなっている。Note that the heating of the fins 3 is performed over the entire surface of the fins 3.

以上の説明では、フィンの形状を円盤状としているが、
本発明は円盤状フィンに限定されるものではない。In the above explanation, the shape of the fin is a disk shape, but
The present invention is not limited to disc-shaped fins.

なお、フィンに形成されるヒートバイブ空間は薄い空間
であることが望ましい。Note that it is desirable that the heat vibe space formed in the fin be a thin space.

さらに、本発明は蒸発気器に限定されるものではなく、
凝縮器にも適用できるものである。Furthermore, the invention is not limited to evaporators;
It can also be applied to condensers.

（発明の効果） 以上のように構成された本発明の効果は次のとおりであ
る。(Effects of the Invention) The effects of the present invention configured as described above are as follows.

フィンに与えられた熱がウィックに浸透している液体を
蒸発させるので、フィン全体の温度分布が一定温度とな
り、フィンの大きさを所望の大きさにすることができる
。このため、従来のフィンと比べて熱伝達率を向上させ
ることができるものとなる。Since the heat applied to the fins evaporates the liquid that has permeated the wick, the temperature distribution over the fins becomes constant, allowing the fins to have a desired size. Therefore, the heat transfer coefficient can be improved compared to conventional fins.

ヒートパイプ作用を利用するものであるから、小形で大
容量の熱輸送ができ、低温度差の熱授受に効果的である
。Since it utilizes a heat pipe effect, it is small and can transport a large amount of heat, and is effective in transferring heat at low temperature differences.

【図面の簡単な説明】[Brief explanation of drawings]

図は本発明の一実施例を示すフィン付き伝熱管の断面図
である。 １：伝熱管　２：管内　３：フィン　４：ヒートパイプ
空間　５：ウイツクThe figure is a sectional view of a finned heat exchanger tube showing an embodiment of the present invention. 1: Heat transfer tube 2: Inside the tube 3: Fin 4: Heat pipe space 5: Wick

Claims (1)

【特許請求の範囲】[Claims] 気液二相流が流動する伝熱管に設けられたフィンと、該
フィンの内部に形成され、前記伝熱管内に連通されたヒ
ートパイプ空間と、該ヒートパイプ空間の内壁に設けら
れたウイツクとからなり、前記フィンの先端を含む全面
と前記伝熱管内との間で熱授受を行わせることを特徴と
するヒートパイプ内蔵フィンを設けた伝熱管A fin provided on a heat transfer tube through which a gas-liquid two-phase flow flows, a heat pipe space formed inside the fin and communicated with the heat transfer tube, and a wick provided on an inner wall of the heat pipe space. A heat exchanger tube equipped with a built-in heat pipe fin, characterized in that heat is exchanged between the entire surface including the tip of the fin and the inside of the heat exchanger tube.
JP6808585A 1985-03-30 1985-03-30 Heat transfer tube with heat pipe built-in fins Granted JPS61228292A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP6808585A JPS61228292A (en) 1985-03-30 1985-03-30 Heat transfer tube with heat pipe built-in fins

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP6808585A JPS61228292A (en) 1985-03-30 1985-03-30 Heat transfer tube with heat pipe built-in fins

Publications (2)

Publication Number Publication Date
JPS61228292A true JPS61228292A (en) 1986-10-11
JPH0519077B2 JPH0519077B2 (en) 1993-03-15

Family

ID=13363547

Family Applications (1)

Application Number Title Priority Date Filing Date
JP6808585A Granted JPS61228292A (en) 1985-03-30 1985-03-30 Heat transfer tube with heat pipe built-in fins

Country Status (1)

Country Link
JP (1) JPS61228292A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8893513B2 (en) 2012-05-07 2014-11-25 Phononic Device, Inc. Thermoelectric heat exchanger component including protective heat spreading lid and optimal thermal interface resistance
US8991194B2 (en) 2012-05-07 2015-03-31 Phononic Devices, Inc. Parallel thermoelectric heat exchange systems
US9593871B2 (en) 2014-07-21 2017-03-14 Phononic Devices, Inc. Systems and methods for operating a thermoelectric module to increase efficiency
US10458683B2 (en) 2014-07-21 2019-10-29 Phononic, Inc. Systems and methods for mitigating heat rejection limitations of a thermoelectric module

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5913876U (en) * 1982-07-14 1984-01-27 イ−グル工業株式会社 Heat exchanger

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5913876B2 (en) * 1979-12-10 1984-04-02 株式会社日立製作所 Industrial sewing machine control device

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5913876U (en) * 1982-07-14 1984-01-27 イ−グル工業株式会社 Heat exchanger

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8893513B2 (en) 2012-05-07 2014-11-25 Phononic Device, Inc. Thermoelectric heat exchanger component including protective heat spreading lid and optimal thermal interface resistance
US8991194B2 (en) 2012-05-07 2015-03-31 Phononic Devices, Inc. Parallel thermoelectric heat exchange systems
US9103572B2 (en) 2012-05-07 2015-08-11 Phononic Devices, Inc. Physically separated hot side and cold side heat sinks in a thermoelectric refrigeration system
US9234682B2 (en) 2012-05-07 2016-01-12 Phononic Devices, Inc. Two-phase heat exchanger mounting
US9310111B2 (en) 2012-05-07 2016-04-12 Phononic Devices, Inc. Systems and methods to mitigate heat leak back in a thermoelectric refrigeration system
US9341394B2 (en) 2012-05-07 2016-05-17 Phononic Devices, Inc. Thermoelectric heat exchange system comprising cascaded cold side heat sinks
US10012417B2 (en) 2012-05-07 2018-07-03 Phononic, Inc. Thermoelectric refrigeration system control scheme for high efficiency performance
US9593871B2 (en) 2014-07-21 2017-03-14 Phononic Devices, Inc. Systems and methods for operating a thermoelectric module to increase efficiency
US10458683B2 (en) 2014-07-21 2019-10-29 Phononic, Inc. Systems and methods for mitigating heat rejection limitations of a thermoelectric module

Also Published As

Publication number Publication date
JPH0519077B2 (en) 1993-03-15

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Legal Events

Date Code Title Description
EXPY Cancellation because of completion of term