EP0882939A4 - Heating tube for absorber and method of manufacturing same - Google Patents

Heating tube for absorber and method of manufacturing same

Info

Publication number
EP0882939A4
EP0882939A4 EP97947889A EP97947889A EP0882939A4 EP 0882939 A4 EP0882939 A4 EP 0882939A4 EP 97947889 A EP97947889 A EP 97947889A EP 97947889 A EP97947889 A EP 97947889A EP 0882939 A4 EP0882939 A4 EP 0882939A4
Authority
EP
European Patent Office
Prior art keywords
tube
circumferential direction
mountain portions
recesses
axial direction
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
EP97947889A
Other languages
German (de)
French (fr)
Other versions
EP0882939B1 (en
EP0882939A1 (en
Inventor
Shiguma Yamazaki
Naoe Sasaki
Akio Eguchi
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.)
Sanyo Electric Co Ltd
Sumitomo Light Metal Industries Ltd
Original Assignee
Sanyo Electric Co Ltd
Sumitomo Light Metal Industries 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 Sanyo Electric Co Ltd, Sumitomo Light Metal Industries Ltd filed Critical Sanyo Electric Co Ltd
Publication of EP0882939A1 publication Critical patent/EP0882939A1/en
Publication of EP0882939A4 publication Critical patent/EP0882939A4/en
Application granted granted Critical
Publication of EP0882939B1 publication Critical patent/EP0882939B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D15/00—Corrugating tubes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
    • B21C37/00—Manufacture of metal sheets, bars, wire, tubes or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape
    • B21C37/06—Manufacture of metal sheets, bars, wire, tubes or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape of tubes or metal hoses; Combined procedures for making tubes, e.g. for making multi-wall tubes
    • B21C37/15—Making tubes of special shape; Making tube fittings
    • B21C37/20—Making helical or similar guides in or on tubes without removing material, e.g. by drawing same over mandrels, by pushing same through dies ; Making tubes with angled walls, ribbed tubes and tubes with decorated walls
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B37/00—Absorbers; Adsorbers
    • 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
    • F28D3/00—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium flows in a continuous film, or trickles freely, over the conduits
    • F28D3/02—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium flows in a continuous film, or trickles freely, over the conduits with tubular conduits
    • 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
    • F28F1/02—Tubular elements of cross-section which is non-circular
    • F28F1/06—Tubular elements of cross-section which is non-circular crimped or corrugated in cross-section
    • 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
    • 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
    • F28F1/422—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 with outside means integral with the tubular element and inside means integral with 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
    • 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
    • F28F1/424—Means comprising outside portions integral with inside portions
    • F28F1/426—Means comprising outside portions integral with inside portions the outside portions and the inside portions forming parts of complementary shape, e.g. concave and convex
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B2500/00—Problems to be solved
    • F25B2500/01—Geometry problems, e.g. for reducing size

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Mechanical Engineering (AREA)
  • Thermal Sciences (AREA)
  • General Engineering & Computer Science (AREA)
  • Geometry (AREA)
  • Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
  • Rigid Pipes And Flexible Pipes (AREA)

Abstract

A heating tube for absorbers, which has a heat transfer performance improving rate corresponding to a heat transfer area increasing rate, is equivalent to a smooth tube in mass per unit length, and is not increased in stock material cost. A heating tube (2) for absorbers is constructed such that a plurality of mountain portions (4), extending in an axial direction of the tube on a tube outer surface and having a configuration of arcuate curved surface in a circumferential direction of the tube, are arranged to form valleys (6) between adjacent mountain portions (4) in the circumferential direction, and irregularities are formed on a tube inner surface to correspond to the mountain portions (4) and valleys (6) and that an adsorbent is made to drip or sprinkle on the tube outer surface while a cooling liquid in the tube cools the adsorbent outside the tube. Provided on the respective mountain portion (4) and spaced from one another in the axial direction of the tube are a multiplicity of recesses (8) extending in the circumferential direction of the tube with either bottom sectional configuration, respectively, in the axial direction of the tube and in the circumferential direction of the tube assuming curved surfaces, so that the mountain portions (4) between the recesses (8) are formed as independent fins (10) and opposite ends of the recesses (8) in the circumferential direction of the tube are formed gradually smaller in width to converge.
EP97947889A 1996-12-13 1997-12-10 Heating tube for absorber and method of manufacturing same Expired - Lifetime EP0882939B1 (en)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
JP33331996 1996-12-13
JP33331996A JP3769338B2 (en) 1996-12-13 1996-12-13 Heat exchanger tube for absorber and manufacturing method thereof
JP333319/96 1996-12-13
PCT/JP1997/004554 WO1998026239A1 (en) 1996-12-13 1997-12-10 Heating tube for absorber and method of manufacturing same

Publications (3)

Publication Number Publication Date
EP0882939A1 EP0882939A1 (en) 1998-12-09
EP0882939A4 true EP0882939A4 (en) 2000-01-19
EP0882939B1 EP0882939B1 (en) 2003-07-09

Family

ID=18264788

Family Applications (1)

Application Number Title Priority Date Filing Date
EP97947889A Expired - Lifetime EP0882939B1 (en) 1996-12-13 1997-12-10 Heating tube for absorber and method of manufacturing same

Country Status (5)

Country Link
EP (1) EP0882939B1 (en)
JP (1) JP3769338B2 (en)
KR (1) KR100472526B1 (en)
CN (1) CN1128331C (en)
WO (1) WO1998026239A1 (en)

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6760972B2 (en) 2000-09-21 2004-07-13 Packless Metal Hose, Inc. Apparatus and methods for forming internally and externally textured tubing
US6488079B2 (en) 2000-12-15 2002-12-03 Packless Metal Hose, Inc. Corrugated heat exchanger element having grooved inner and outer surfaces
JP2006302887A (en) 2005-04-20 2006-11-02 Ngk Insulators Ltd Power supply member and heating device
DE202008002466U1 (en) * 2008-02-21 2008-05-29 Pasemann, Lutz, Dr. Stirling engine heater from a bundle of textured tubes
WO2012035571A1 (en) 2010-09-13 2012-03-22 川崎重工業株式会社 Spray tube device and heat exchanger using same
CN103175429B (en) * 2013-04-18 2016-02-03 南京工业大学 Multidirectional corrugated inner finned tube
CN104833257A (en) * 2014-02-10 2015-08-12 Lg电子株式会社 Heat pipe and refrigerating machine therewith
CN104296579A (en) * 2014-07-29 2015-01-21 无锡塔尔基热交换器科技有限公司 Heat exchange tube, manufacturing method of heat exchange tube and heat exchanger with heat exchange tube
KR101708669B1 (en) * 2014-12-04 2017-03-08 엘지전자 주식회사 Stainless corrugate tube, Absorption refrigerating machine having the same and Manufacturing method of the same
CN106075940B (en) * 2016-08-24 2018-07-24 佛山科学技术学院 Evaporator with central downcomer
KR20180138070A (en) * 2017-06-20 2018-12-28 엘지전자 주식회사 Absorpotion Chiller
CN109405354A (en) * 2018-11-19 2019-03-01 珠海格力电器股份有限公司 Falling film type heat exchanger and air conditioning unit
CN112872091B (en) * 2020-12-31 2023-01-31 浙江海亮股份有限公司 Four-tooth special pipe stretching process

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0621744B2 (en) * 1986-06-25 1994-03-23 東京瓦斯株式会社 Heat transfer tube for absorber
JPH0745994B2 (en) * 1986-06-25 1995-05-17 東京瓦斯株式会社 Heat transfer tube for absorber
JPH0289270A (en) 1988-09-26 1990-03-29 Canon Inc Editing system
JPH0726772B2 (en) 1988-12-27 1995-03-29 三洋電機株式会社 Heat transfer tube for absorber
JPH06159862A (en) * 1992-11-25 1994-06-07 Sanyo Electric Co Ltd Absorber for freezer
JPH0724522A (en) 1993-07-08 1995-01-27 Sanyo Electric Co Ltd Heat-transfer tube for absorber and production therefor
JPH07111287A (en) 1993-10-09 1995-04-25 Hitachi Ltd Lot organizing method and equipment
JPH07218037A (en) * 1994-01-27 1995-08-18 Furukawa Electric Co Ltd:The Heat transfer pipe for absorber
JP3231565B2 (en) * 1994-12-09 2001-11-26 株式会社神戸製鋼所 Heat transfer tube for absorber

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
No further relevant documents disclosed *
See also references of WO9826239A1 *

Also Published As

Publication number Publication date
JPH10176893A (en) 1998-06-30
CN1128331C (en) 2003-11-19
CN1211312A (en) 1999-03-17
WO1998026239A1 (en) 1998-06-18
KR19990082278A (en) 1999-11-25
EP0882939B1 (en) 2003-07-09
EP0882939A1 (en) 1998-12-09
JP3769338B2 (en) 2006-04-26
KR100472526B1 (en) 2005-07-07

Similar Documents

Publication Publication Date Title
EP0882939A4 (en) Heating tube for absorber and method of manufacturing same
US4159739A (en) Heat transfer surface and method of manufacture
ES2044927T3 (en) ADSORPTION PROCESS.
CA2110622A1 (en) Heat Exchanger Tube
MY114272A (en) A multiple finned tube and a method for its manufacture
EP0710811A3 (en) Corrugate fin type heat exchanger
MY116659A (en) Heat exchanger for refrigerating cycle
SE8104277L (en) DEVICE EXCHANGER
CA2200671A1 (en) Heat exchanger tube
US4434841A (en) Variably spaced wrapped fin heat exchanger
ES296103U (en) Insertable contact body.
CA2161296A1 (en) Heat Transfer Tube
MY122331A (en) Absorption chiller and heat exchanger tube used the same.
CA1077023A (en) Finned metal tube for heat exchangers
DE50113077D1 (en) Internally ribbed heat exchange tube with staggered ribs of different heights
DE59809395D1 (en) Extruder tube with a heat exchanger
MY123394A (en) Heat transfer tubes with grooves in inner surface of tube
MY120973A (en) Heat transfer tube for absorber
EP0990868A3 (en) Heat exchanger
US5730001A (en) Absorption type refrigerating machine
IT1293437B1 (en) AIR CONDITIONING APPLIANCE OF THE ABSORPTION TYPE WITH REGENERATORS WITH FINNED TUBES OF THE ABSORPTION LIQUID.
JPH06147784A (en) Heat exchanger tube
JPH0639246Y2 (en) Loop heat pipe
SU1740951A1 (en) Heat tube
KR970075822A (en) Heat pipe for absorber

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

17P Request for examination filed

Effective date: 19980813

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): IT

A4 Supplementary search report drawn up and despatched

Effective date: 19991203

AK Designated contracting states

Kind code of ref document: A4

Designated state(s): IT

GRAH Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOS IGRA

GRAH Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOS IGRA

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Designated state(s): IT

PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

26N No opposition filed

Effective date: 20040414

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: IT

Payment date: 20081223

Year of fee payment: 12

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20091210