WO2007110165A1 - Verwendung eines wärmeaustauscherrohrs - Google Patents
Verwendung eines wärmeaustauscherrohrs Download PDFInfo
- Publication number
- WO2007110165A1 WO2007110165A1 PCT/EP2007/002379 EP2007002379W WO2007110165A1 WO 2007110165 A1 WO2007110165 A1 WO 2007110165A1 EP 2007002379 W EP2007002379 W EP 2007002379W WO 2007110165 A1 WO2007110165 A1 WO 2007110165A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- heat exchanger
- exchanger tube
- tube according
- tube
- heat
- Prior art date
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)
- Sorption Type Refrigeration Machines (AREA)
- Devices That Are Associated With Refrigeration Equipment (AREA)
Abstract
Description
Claims
Priority Applications (6)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DK07711975.8T DK1996739T3 (da) | 2006-03-23 | 2007-03-17 | Anvendelse af et varmevekslerrør |
CN2007800079346A CN101395289B (zh) | 2006-03-23 | 2007-03-17 | 热交换器管的使用 |
JP2009500752A JP2009530581A (ja) | 2006-03-23 | 2007-03-17 | 熱交換器管の使用方法 |
US12/225,514 US20090301701A1 (en) | 2006-03-23 | 2007-03-17 | Use of a Heat Exchanger Tube |
AT07711975T ATE518013T1 (de) | 2006-03-23 | 2007-03-17 | Verwendung eines wärmeaustauscherrohrs |
EP07711975A EP1996739B1 (de) | 2006-03-23 | 2007-03-17 | Verwendung eines wärmeaustauscherrohrs |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102006013384A DE102006013384B4 (de) | 2006-03-23 | 2006-03-23 | Verwendung eines Wärmeaustauscherrohrs |
DE102006013384.6 | 2006-03-23 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2007110165A1 true WO2007110165A1 (de) | 2007-10-04 |
Family
ID=38072155
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/EP2007/002379 WO2007110165A1 (de) | 2006-03-23 | 2007-03-17 | Verwendung eines wärmeaustauscherrohrs |
Country Status (9)
Country | Link |
---|---|
US (1) | US20090301701A1 (de) |
EP (1) | EP1996739B1 (de) |
JP (1) | JP2009530581A (de) |
CN (1) | CN101395289B (de) |
AT (1) | ATE518013T1 (de) |
DE (1) | DE102006013384B4 (de) |
DK (1) | DK1996739T3 (de) |
ES (1) | ES2370352T3 (de) |
WO (1) | WO2007110165A1 (de) |
Families Citing this family (5)
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 |
CN104428430A (zh) * | 2012-04-16 | 2015-03-18 | 株式会社Uacj | 平绕盘管、平绕盘管的制造方法、交叉翅片管型热交换器以及交叉翅片管型热交换器的制造方法 |
FR2995383B1 (fr) | 2012-09-12 | 2015-04-10 | Kme France Sas | Alliages de cuivre pour echangeurs de chaleur |
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 |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5476428A (en) * | 1977-11-30 | 1979-06-19 | Mitsubishi Metal Corp | Seamless pipe-forming cu alloy |
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 |
EP0626459A1 (de) * | 1993-05-27 | 1994-11-30 | KABUSHIKI KAISHA KOBE SEIKO SHO also known as Kobe Steel Ltd. | Rohr aus korrosionsbeständige Kupferlegierung und Rippenrohrwärmeaustauscher |
EP1630240A1 (de) * | 2003-03-03 | 2006-03-01 | Sambo Copper Alloy Co., Ltd | Hitzebeständige kupferlegierungswerkstoffe |
Family Cites Families (15)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
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 |
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 |
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 |
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 |
MX2012006044A (es) * | 2009-11-25 | 2012-09-28 | Luvata Espoo Oy | Aleaciones de cobre y tubos de intercambio de calor. |
-
2006
- 2006-03-23 DE DE102006013384A patent/DE102006013384B4/de active Active
-
2007
- 2007-03-17 WO PCT/EP2007/002379 patent/WO2007110165A1/de active Application Filing
- 2007-03-17 US US12/225,514 patent/US20090301701A1/en not_active Abandoned
- 2007-03-17 DK DK07711975.8T patent/DK1996739T3/da active
- 2007-03-17 AT AT07711975T patent/ATE518013T1/de active
- 2007-03-17 EP EP07711975A patent/EP1996739B1/de active Active
- 2007-03-17 CN CN2007800079346A patent/CN101395289B/zh active Active
- 2007-03-17 JP JP2009500752A patent/JP2009530581A/ja not_active Withdrawn
- 2007-03-17 ES ES07711975T patent/ES2370352T3/es active Active
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5476428A (en) * | 1977-11-30 | 1979-06-19 | Mitsubishi Metal Corp | Seamless pipe-forming cu alloy |
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 |
EP0626459A1 (de) * | 1993-05-27 | 1994-11-30 | KABUSHIKI KAISHA KOBE SEIKO SHO also known as Kobe Steel Ltd. | Rohr aus korrosionsbeständige Kupferlegierung und Rippenrohrwärmeaustauscher |
EP1630240A1 (de) * | 2003-03-03 | 2006-03-01 | Sambo Copper Alloy Co., Ltd | Hitzebeständige kupferlegierungswerkstoffe |
Also Published As
Publication number | Publication date |
---|---|
US20090301701A1 (en) | 2009-12-10 |
CN101395289B (zh) | 2011-10-12 |
DE102006013384A1 (de) | 2007-09-27 |
DE102006013384B4 (de) | 2009-10-22 |
CN101395289A (zh) | 2009-03-25 |
EP1996739B1 (de) | 2011-07-27 |
EP1996739A1 (de) | 2008-12-03 |
ES2370352T3 (es) | 2011-12-14 |
ATE518013T1 (de) | 2011-08-15 |
DK1996739T3 (da) | 2011-11-21 |
JP2009530581A (ja) | 2009-08-27 |
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