EP1996739A1 - Utilisation d'un tube d'échangeur de chaleur - Google Patents

Utilisation d'un tube d'échangeur de chaleur

Info

Publication number
EP1996739A1
EP1996739A1 EP07711975A EP07711975A EP1996739A1 EP 1996739 A1 EP1996739 A1 EP 1996739A1 EP 07711975 A EP07711975 A EP 07711975A EP 07711975 A EP07711975 A EP 07711975A EP 1996739 A1 EP1996739 A1 EP 1996739A1
Authority
EP
European Patent Office
Prior art keywords
heat exchanger
exchanger tube
tube according
tube
heat
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
EP07711975A
Other languages
German (de)
English (en)
Other versions
EP1996739B1 (fr
Inventor
Andreas Beutler
Johann Gschaider
Robert Klöckler
Hans-Achim Kuhn
Eberhard Lepin
Christoph Walther
Rolf Wamsler
Martin Straub
Wolfgang Zeiler
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.)
Wieland Werke AG
Original Assignee
Wieland Werke AG
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 Wieland Werke AG filed Critical Wieland Werke AG
Publication of EP1996739A1 publication Critical patent/EP1996739A1/fr
Application granted granted Critical
Publication of EP1996739B1 publication Critical patent/EP1996739B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F21/00—Constructions of heat-exchange apparatus characterised by the selection of particular materials
    • F28F21/08—Constructions of heat-exchange apparatus characterised by the selection of particular materials of metal
    • F28F21/081—Heat exchange elements made from metals or metal alloys
    • F28F21/085—Heat exchange elements made from metals or metal alloys from copper or copper alloys
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C9/00—Alloys based on copper

Definitions

  • the present invention relates to the use of a heat exchanger tube made of a copper alloy.
  • CO2 as a natural refrigerant that does not contribute to the destruction of the ozone layer and is neutral in its direct contribution to the greenhouse effect, is an ecologically interesting and economically viable alternative to the HFC refrigerants currently used in Europe, depending on the application and context.
  • the working range of the refrigerant CO2 is at pressures up to 130 bar and thus far above the usual for CFC and HFC safety refrigerants pressures up to 35 bar. But Depending on the application, permissible pressures of up to 50 bar are also required for evaporators, in particular if hot gas defrosting is provided.
  • Heat exchangers are used, difficult to realize, since very large pipe wall thicknesses are to be used, with corresponding negative effects on the processability, in particular the expansion and bending, the weight of the heat exchanger and the equipment costs. Instead, it is now state of the art to use pipes made of hot-dip galvanized steel or stainless steel, with which the said pressures are relatively easy to control.
  • the invention includes the technical teaching, a heat exchanger tube consisting of a copper alloy containing the alloying elements [in% by weight] 0.05-3% Fe, 0.01-0.15% P, and optionally 0.05- 0.2% Zn 0.02 - 0.05% Sn and the remainder contains Cu and unavoidable impurities to be used as a gas cooler, condenser or evaporator tube of a CO2 refrigerating machine or heat pump.
  • the invention is based on the consideration that a heat exchanger tube with an inside substantially smooth or textured surface for use in the gas cooler, condenser or evaporator of a working with CO2 chiller or heat pump is used. In this context, the term includes on the inside substantially smooth also by welding seams resulting surfaces.
  • the working medium CO2 flows on the inside of the heat exchanger tubes and, depending on the temperature conditions of the specific application, has a pressure position that clearly stands out from the pressures known for CFC and HFC safety refrigerants and places high demands on the pressure resistance of the tubes used.
  • the particular advantage is that by the higher-strength Cu alloys according to the invention, which allow small wall thicknesses even at high pressure levels, thus significant material savings and thus weight and cost advantages can be achieved.
  • these Cu alloys have excellent processing properties, especially expansion, bending and brazing.
  • the pipe outside diameter may be in the range of 3 to 16 mm.
  • the ratio of the wall thickness to the pipe outside diameter can be advantageously selected in the range of 0.025 to 0.08. This results in pipe wall thicknesses which are in the similar size range as today for HFC safety refrigerants usually used copper tubes are made of Cu-DHP and thus can be expected very good properties with respect to the further processing,
  • the pipe material may have a yield strength R p o , 2 over 160 N / mm 2 . It is further preferred that the tube material has a tensile strength R m above 300 N / mm 2 . This results, for example, for a pipe with an outer diameter of 9.52 mm and an operating pressure of 130 bar necessary pipe wall thicknesses of at most 0.55 mm and thus a material saving of more than 40% compared to pipes made of Cu-DHP.
  • the heat exchanger tube may be formed of a strip material and have a weld.
  • welds come into consideration, which extend in the axial direction or are spirally encircling.
  • As a possible joining method for pipe production is particularly suitable for the high-frequency welding process. This results in particular advantages over other joining methods on the one hand, realizable high production speeds and, secondly, a microstructure state, which after a usually following annealing process has no loss of strength over the material not influenced by the joining process.
  • the heat exchanger tube may be seamless.
  • seamless tubes and welded tubes may be considered equivalent in the use of the invention.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • General Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
  • Devices That Are Associated With Refrigeration Equipment (AREA)
  • Sorption Type Refrigeration Machines (AREA)
EP07711975A 2006-03-23 2007-03-17 Utilisation d'un tube d'échangeur de chaleur Active EP1996739B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102006013384A DE102006013384B4 (de) 2006-03-23 2006-03-23 Verwendung eines Wärmeaustauscherrohrs
PCT/EP2007/002379 WO2007110165A1 (fr) 2006-03-23 2007-03-17 Utilisation d'un tube d'échangeur de chaleur

Publications (2)

Publication Number Publication Date
EP1996739A1 true EP1996739A1 (fr) 2008-12-03
EP1996739B1 EP1996739B1 (fr) 2011-07-27

Family

ID=38072155

Family Applications (1)

Application Number Title Priority Date Filing Date
EP07711975A Active EP1996739B1 (fr) 2006-03-23 2007-03-17 Utilisation d'un tube d'échangeur de chaleur

Country Status (9)

Country Link
US (1) US20090301701A1 (fr)
EP (1) EP1996739B1 (fr)
JP (1) JP2009530581A (fr)
CN (1) CN101395289B (fr)
AT (1) ATE518013T1 (fr)
DE (1) DE102006013384B4 (fr)
DK (1) DK1996739T3 (fr)
ES (1) ES2370352T3 (fr)
WO (1) WO2007110165A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2716403A1 (fr) 2012-09-12 2014-04-09 KME France SAS Alliages de cuivre pour échangeurs de chaleur

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP5446163B2 (ja) * 2008-08-04 2014-03-19 ダイキン工業株式会社 熱交換器用溝付き管
JPWO2013157461A1 (ja) * 2012-04-16 2015-12-21 株式会社Uacj レベルワウンドコイル、レベルワウンドコイルの製造方法、クロスフィンチューブ型熱交換器及びクロスフィンチューブ型熱交換器の製造方法
AT518424B1 (de) * 2016-09-13 2017-10-15 Josef Höller Gmbh Kühl- und Wärmeplatte
CN114085978A (zh) * 2021-10-15 2022-02-25 福建捷思金属科技发展有限公司 一种耐受超高压力的制冷系统用铜铁合金管件及制备方法

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US2373116A (en) * 1941-10-31 1945-04-10 Bundy Tubing Co Method of uniting metals
US4064914A (en) * 1974-05-08 1977-12-27 Union Carbide Corporation Porous metallic layer and formation
JPS5853057B2 (ja) * 1974-05-20 1983-11-26 株式会社神戸製鋼所 高導電性銅基合金
JPS53149121A (en) * 1977-06-01 1978-12-26 Tamagawa Kikai Kinzoku Kk Flexible pipe made of copperrbased alloy
JPS5835249B2 (ja) * 1977-11-30 1983-08-01 三菱マテリアル株式会社 継目無し管製造用Ｃｕ合金
JPS5534616A (en) * 1978-08-29 1980-03-11 Furukawa Electric Co Ltd:The High tensile copper alloy with high electric conductivity
JPS58153747A (ja) * 1982-03-05 1983-09-12 Nippon Denso Co Ltd 熱交換器のフイン用耐食性銅合金
US4674566A (en) * 1985-02-14 1987-06-23 Olin Corporation Corrosion resistant modified Cu-Zn alloy for heat exchanger tubes
JPH0688177A (ja) * 1992-09-10 1994-03-29 Kobe Steel Ltd 銅合金管の製造方法
MY115423A (en) * 1993-05-27 2003-06-30 Kobe Steel Ltd Corrosion resistant copper alloy tube and fin- tube heat exchanger
JP3813317B2 (ja) * 1997-08-12 2006-08-23 東芝キヤリア株式会社 冷凍サイクル装置
JPH11211378A (ja) * 1998-01-23 1999-08-06 Hitachi Cable Ltd 熱交換器用伝熱管
JP3303778B2 (ja) * 1998-06-16 2002-07-22 三菱マテリアル株式会社 ０．２％耐力および疲労強度の優れた熱交換器用継目無銅合金管
US20030066632A1 (en) * 2001-10-09 2003-04-10 Charles J. Bishop Corrosion-resistant heat exchanger
JP3794341B2 (ja) * 2002-03-28 2006-07-05 株式会社コベルコ マテリアル銅管 内面溝付管及びその製造方法
CN1296500C (zh) * 2003-03-03 2007-01-24 三宝伸铜工业株式会社 耐热铜合金
JP4550451B2 (ja) * 2004-03-11 2010-09-22 古河電気工業株式会社 内面溝付伝熱管及び内面溝付伝熱管を用いた熱交換器
JP4441467B2 (ja) * 2004-12-24 2010-03-31 株式会社神戸製鋼所 曲げ加工性及び耐応力緩和特性を備えた銅合金
CN1687684A (zh) * 2005-04-05 2005-10-26 佛山市顺德区精艺万希铜业有限公司 内螺纹管及其制作方法
CA2781621C (fr) * 2009-11-25 2018-01-02 Luvata Espoo Oy Alliages de cuivre et tubes echangeurs de chaleur

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO2007110165A1 *

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2716403A1 (fr) 2012-09-12 2014-04-09 KME France SAS Alliages de cuivre pour échangeurs de chaleur

Also Published As

Publication number Publication date
JP2009530581A (ja) 2009-08-27
CN101395289B (zh) 2011-10-12
DE102006013384A1 (de) 2007-09-27
ES2370352T3 (es) 2011-12-14
CN101395289A (zh) 2009-03-25
US20090301701A1 (en) 2009-12-10
ATE518013T1 (de) 2011-08-15
EP1996739B1 (fr) 2011-07-27
DE102006013384B4 (de) 2009-10-22
WO2007110165A1 (fr) 2007-10-04
DK1996739T3 (da) 2011-11-21

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