JP2006029758A - Heat pipe type waste heat recovery heat exchanger - Google Patents

Heat pipe type waste heat recovery heat exchanger Download PDF

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Publication number
JP2006029758A
JP2006029758A JP2004238935A JP2004238935A JP2006029758A JP 2006029758 A JP2006029758 A JP 2006029758A JP 2004238935 A JP2004238935 A JP 2004238935A JP 2004238935 A JP2004238935 A JP 2004238935A JP 2006029758 A JP2006029758 A JP 2006029758A
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Japan
Prior art keywords
pipe
temperature side
heat
high temperature
low temperature
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Pending
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JP2004238935A
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Japanese (ja)
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Shigenobu Izumi
繁信 泉
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TSUCHIYAMA SANGYO KK
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TSUCHIYAMA SANGYO KK
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Priority to JP2004238935A priority Critical patent/JP2006029758A/en
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    • 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
    • F28D15/0275—Arrangements for coupling heat-pipes together or with other structures, e.g. with base blocks; Heat pipe cores
    • 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

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  • 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

<P>PROBLEM TO BE SOLVED: To provide a waste heat recovery heat exchanger with the usage of a heat pipe with a plate fin in order to effectively perform heat exchange without mixing the gas on the high temperature side and the gas on the low temperature side. <P>SOLUTION: This heat pipe type waste heat recovery heat exchanger is provided with a partitioning plate 20 for partitioning a low temperature side passage 21 and a high temperature side passage 22, a pipe 23 inserted into a plurality of through holes 20a provided thereon in predetermined pitches, the plate fin 24 inserted into the pipe 23, and the heat pipe 26 obtained by sealing both ends of a copper pipe 25 to have a sealed structure and sealing a predetermined amount of working fluid therein. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

本発明は高温流体と低温流体とを効率よく熱交換するため、プレートフィン付きヒートパイプを用いた小型・軽量で大容量の排熱回収熱交換装置に関するものである。The present invention relates to a small, lightweight, large-capacity exhaust heat recovery heat exchanger using a heat pipe with a plate fin in order to efficiently exchange heat between a high-temperature fluid and a low-temperature fluid.

従来の排熱回収熱交換装置として巻き付けフィン方式とプレートフィン方式によるものがあり、例えばその一例を図４に示す。従来、気体と気体との熱交換において図４に示すようなフィン付きヒートパイプが用いられている。図４において、２０は仕切板、２１は低温側流路、２２は高温側流路、２６はヒートパイプ、２７はフィン、２８はシールチューブである。ヒートパイプ２６は両端部を封止して真空排気後、内部に作動液を封入して密閉されており、仕切板２０を境として一方が高温側流路２２に、もう一方が低温側流路２１に配置されている。Conventional exhaust heat recovery heat exchange devices include a winding fin type and a plate fin type. For example, an example is shown in FIG. Conventionally, a finned heat pipe as shown in FIG. 4 is used in heat exchange between gas and gas. In FIG. 4, 20 is a partition plate, 21 is a low temperature side flow path, 22 is a high temperature side flow path, 26 is a heat pipe, 27 is a fin, and 28 is a seal tube. The heat pipe 26 is sealed at both ends and evacuated, and sealed with a working fluid sealed inside. One is a high-temperature channel 22 and the other is a low-temperature channel with the partition plate 20 as a boundary. 21.

発明が解決しようとする課題Problems to be solved by the invention

従来の排熱回収熱交換装置は、高温の気体と低温の気体を混合させることなく、高温側から低温側に熱輸送させるために、ヒートパイプ２６を内蔵したフィン付き管で形成されているが、高温側と低温側の気体を分離するために、ひとつには、仕切板２０はヒートパイプ２６中央のフィン２７の無い平滑部を挟むように半円状の溝を有する複数の仕切板部材から構成するものがあり、またもうひとつには、フィン付き管の一方の端を溶接で仕切板に接合し、固定保持とシール処理を同時にしており、更にヒートパイプ２６にシールチューブ２８を挿入し、その後拡管してシール処理をしているものがある。このように従来のものは作業性が悪く、組み立てコストが高くなるとともに、シール機能を持たせて完全に洩れを止めることが困難であるという課題があった。A conventional exhaust heat recovery heat exchange device is formed of a finned tube with a built-in heat pipe 26 for heat transport from a high temperature side to a low temperature side without mixing a high temperature gas and a low temperature gas. In order to separate the gas on the high temperature side and the low temperature side, for example, the partition plate 20 is formed from a plurality of partition plate members having semicircular grooves so as to sandwich a smooth portion without the fin 27 at the center of the heat pipe 26. In addition, one end of the finned tube is joined to the partition plate by welding to fix and hold and seal simultaneously, and a seal tube 28 is inserted into the heat pipe 26. After that, some pipes are expanded and sealed. As described above, the conventional device has problems in that workability is poor, the assembling cost is high, and it is difficult to completely stop leakage by providing a sealing function.

フィンを組み立てる工程でフィン間ピッチが一定にならず、熱回収効率の向上に影響を及ぼしているという問題点があった。In the process of assembling the fins, the pitch between the fins is not constant, which affects the improvement of the heat recovery efficiency.

課題を解決するための手段Means for solving the problem

仕切板の貫通穴に、低温側から高温側に延在するパイプを挿入し、低温側、高温側より各々フィンを組み込む。パイプの内部から特別な方法で拡管し、フィンをパイプの外面に固定させ、更にパイプを仕切板の貫通穴にシール固定させる。また、パイプの中に銅パイプを挿入し、銅パイプを特別な方法で拡管してパイプの内面に密着させ両端部を封止してヒートパイプを形成することによって解決できる。A pipe extending from the low temperature side to the high temperature side is inserted into the through hole of the partition plate, and fins are incorporated from the low temperature side and the high temperature side, respectively. The pipe is expanded by a special method from the inside of the pipe, the fin is fixed to the outer surface of the pipe, and the pipe is further sealed to the through hole of the partition plate. Further, the problem can be solved by inserting a copper pipe into the pipe, expanding the copper pipe by a special method, closely contacting the inner surface of the pipe, sealing both ends, and forming a heat pipe.

フィン２４を重ね合わせて組むときにはフィン間ピッチ３０が小さくならないようにするため、フィンの大径３３はフィンの小径３４より大きくしている。また、ヒートパイプ２６からフィン２４への熱伝導を良くするため、接触長さ３２はフィンの厚み３１のＸ倍以上としている。これにより課題を解決できる。In order to prevent the pitch 30 between the fins from being reduced when the fins 24 are stacked and assembled, the large diameter 33 of the fins is made larger than the small diameter 34 of the fins. Further, in order to improve the heat conduction from the heat pipe 26 to the fin 24, the contact length 32 is set to be X times the fin thickness 31 or more. This can solve the problem.

発明の効果The invention's effect

パイプ内部からの拡管作業により仕切板の貫通穴部でフィン付き管、ヒートパイプを固定し全重量を支えるので、フィン付き管の両端部は軸方向に自由であり、低温側、高温側とも温度変化による伸びを自由にさせる構造にすることができ、作業がしやすくなり組立性が向上する。The finned tube and heat pipe are fixed in the through hole of the partition plate by pipe expansion work from the inside of the pipe to support the entire weight, so both ends of the finned tube are free in the axial direction. It is possible to make the structure free from elongation due to change, and the work becomes easier and the assemblability is improved.

パイプ内部からの拡管作業により仕切板の貫通穴部で低温側流路と高温側流路を分離しシールをするので、完全に洩れを止める構造にすることができ、作業がしやすくなり組立性が向上する。Pipe expansion from inside the pipe separates and seals the low temperature side flow path and the high temperature side flow path at the through hole of the partition plate, making it possible to make a structure that completely prevents leakage, making the work easier and easier to assemble Will improve.

フィン間ピッチを一定に保つことができ、熱回収効率を向上させることができる。The pitch between the fins can be kept constant, and the heat recovery efficiency can be improved.

発明の実施例Embodiment of the Invention

この発明の実施例を図１、図２、図３に示す。
２０は低温側流路２１と高温側流路２２に仕切る仕切板であり、所定のピッチであけられた複数の貫通穴２０ａが設けられている。この貫通穴２０ａにパイプ２３が挿入され、またパイプ２３にはプレートフィン２４が挿入される。パイプ２３の内部から拡管し、プレートフィン２４がパイプ２３の外面に固定され、更にパイプ２３が仕切板２０の貫通穴２０ａにシール固定され保持される。また、パイプ２３の中に銅パイプ２５を挿入し、銅パイプ２５を拡管してパイプ２３の内面に密着させ接合させた後、銅パイプ２５の両端部に端板２５ａ、２５ｂを取り付けて密閉容器を構成させ、内部を真空にして所定量の作動液（図示せず）を封入してヒートパイプ２６を形成している。Embodiments of the present invention are shown in FIGS.
Reference numeral 20 denotes a partition plate that partitions the low temperature side flow path 21 and the high temperature side flow path 22, and is provided with a plurality of through holes 20a that are opened at a predetermined pitch. A pipe 23 is inserted into the through hole 20a, and a plate fin 24 is inserted into the pipe 23. The pipe 23 is expanded from the inside of the pipe 23, the plate fin 24 is fixed to the outer surface of the pipe 23, and the pipe 23 is sealed and held in the through hole 20 a of the partition plate 20. Moreover, after inserting the copper pipe 25 into the pipe 23, expanding the copper pipe 25 and bringing it into close contact with the inner surface of the pipe 23, the end plates 25a and 25b are attached to both ends of the copper pipe 25, and the sealed container is installed. The heat pipe 26 is formed by evacuating the inside and enclosing a predetermined amount of hydraulic fluid (not shown).

本発明の一実施例を示す組立図である。It is an assembly drawing which shows one Example of this invention. 本発明の一実施例を示す断面図である。It is sectional drawing which shows one Example of this invention. プレートフィン方式を拡大した断面図である。It is sectional drawing to which the plate fin system was expanded. 巻き付けフィン方式を示す断面図である。It is sectional drawing which shows a winding fin system.

符号の説明Explanation of symbols

２０ 仕切板
２０ａ 貫通穴
２１ 低温側流路
２２ 高温側流路
２３ パイプ
２４ プレートフィン
２５ 銅パイプ
２５ａ、２５ｂ 端板
２６ ヒートパイプ
２７ 巻き付けフィン
２８ シールチューブ
３０ プレートフィン間ピッチ
３１ プレートフィンの厚み
３２ 接触長さ
３３ 大径
３４ 小径20 Partition plate 20a Through hole 21 Low temperature side channel 22 High temperature side channel 23 Pipe 24 Plate fin 25 Copper pipe 25a, 25b End plate 26 Heat pipe 27 Winding fin 28 Seal tube 30 Pitch between plate fins 31 Plate fin thickness 32 Contact Length 33 Large diameter 34 Small diameter

Claims (2)

低温側流路２１と高温側流路２２とを分離する仕切板２０で、パイプ２３とパイプ２３に挿入されたプレートフィン２４とパイプ２３の内部に装着されたヒートパイプ２６とを固定することにより全重量を支え、且つ低温側、高温側とも両端部は温度変化による伸びを自由にさせ、また低温側流路２１と高温側流路２２とを分離しシールをする構造を備えたことを特徴とする排熱回収熱交換装置。The partition plate 20 that separates the low temperature side flow path 21 and the high temperature side flow path 22 fixes the pipe 23, the plate fin 24 inserted into the pipe 23, and the heat pipe 26 mounted inside the pipe 23. The structure is such that it supports the entire weight, and both the low temperature side and the high temperature side are free to stretch due to temperature change, and the low temperature side channel 21 and the high temperature side channel 22 are separated and sealed. Waste heat recovery heat exchange device. パイプ２３へプレートフィン２４を挿入し組み込む時のフィン間ピッチ３０を一定に保つ構造を備えた排熱回収熱交換装置。An exhaust heat recovery heat exchange device having a structure that keeps the pitch 30 between fins constant when the plate fins 24 are inserted and incorporated into the pipe 23.
JP2004238935A 2004-07-21 2004-07-21 Heat pipe type waste heat recovery heat exchanger Pending JP2006029758A (en)

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102748966A (en) * 2012-07-18 2012-10-24 绍兴文理学院 Waste heat recovery mechanism for setting machine
CN106890738A (en) * 2017-04-07 2017-06-27 东方国际集装箱（连云港）有限公司 The method that residual heat of air compressor is used for the pitch-dark heating of pitch
RU2693799C1 (en) * 2018-11-06 2019-07-04 федеральное государственное бюджетное образовательное учреждение высшего образования "Кузбасский государственный технический университет имени Т.Ф. Горбачева" (КузГТУ) Waste heat exchanger

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59113671U (en) * 1983-01-13 1984-08-01 石川島播磨重工業株式会社 Heat exchanger
JPH02217790A (en) * 1989-02-15 1990-08-30 Furukawa Electric Co Ltd:The Heat pipe type sealed casing cooler
JPH094993A (en) * 1995-06-21 1997-01-10 Showa Alum Corp Ventilating and heat exchanging device
JPH10238980A (en) * 1997-02-28 1998-09-11 Hidaka Seiki Kk Fin of heat-exchanger and thin plate for producing fin
JP2000190043A (en) * 1998-12-22 2000-07-11 Hidaka Seiki Kk Manufacture of heat exchanger
JP2001235291A (en) * 2000-02-21 2001-08-31 Mitsubishi Electric Corp Heat exchange apparatus and method of its manufacture

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59113671U (en) * 1983-01-13 1984-08-01 石川島播磨重工業株式会社 Heat exchanger
JPH02217790A (en) * 1989-02-15 1990-08-30 Furukawa Electric Co Ltd:The Heat pipe type sealed casing cooler
JPH094993A (en) * 1995-06-21 1997-01-10 Showa Alum Corp Ventilating and heat exchanging device
JPH10238980A (en) * 1997-02-28 1998-09-11 Hidaka Seiki Kk Fin of heat-exchanger and thin plate for producing fin
JP2000190043A (en) * 1998-12-22 2000-07-11 Hidaka Seiki Kk Manufacture of heat exchanger
JP2001235291A (en) * 2000-02-21 2001-08-31 Mitsubishi Electric Corp Heat exchange apparatus and method of its manufacture

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102748966A (en) * 2012-07-18 2012-10-24 绍兴文理学院 Waste heat recovery mechanism for setting machine
CN106890738A (en) * 2017-04-07 2017-06-27 东方国际集装箱（连云港）有限公司 The method that residual heat of air compressor is used for the pitch-dark heating of pitch
RU2693799C1 (en) * 2018-11-06 2019-07-04 федеральное государственное бюджетное образовательное учреждение высшего образования "Кузбасский государственный технический университет имени Т.Ф. Горбачева" (КузГТУ) Waste heat exchanger

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