EP2409105A1 - Rohr zur beförderung von abgasen in wärmeaustauschvorrichtungen, insbesondere kesseln, zur erzeugung von heissem wasser oder dampf - Google Patents
Rohr zur beförderung von abgasen in wärmeaustauschvorrichtungen, insbesondere kesseln, zur erzeugung von heissem wasser oder dampfInfo
- Publication number
- EP2409105A1 EP2409105A1 EP10708516A EP10708516A EP2409105A1 EP 2409105 A1 EP2409105 A1 EP 2409105A1 EP 10708516 A EP10708516 A EP 10708516A EP 10708516 A EP10708516 A EP 10708516A EP 2409105 A1 EP2409105 A1 EP 2409105A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- tube
- fins
- heat exchange
- exhaust gases
- steam
- 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.)
- Withdrawn
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
- 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
- F28F1/40—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses the means being only inside the tubular element
-
- 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
- F28D21/00—Heat-exchange apparatus not covered by any of the groups F28D1/00 - F28D20/00
- F28D21/0001—Recuperative heat exchangers
- F28D21/0003—Recuperative heat exchangers the heat being recuperated from exhaust gases
- F28D21/0005—Recuperative heat exchangers the heat being recuperated from exhaust gases for domestic or space-heating systems
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F13/00—Arrangements for modifying heat-transfer, e.g. increasing, decreasing
- F28F13/06—Arrangements for modifying heat-transfer, e.g. increasing, decreasing by affecting the pattern of flow of the heat-exchange media
- F28F13/12—Arrangements for modifying heat-transfer, e.g. increasing, decreasing by affecting the pattern of flow of the heat-exchange media by creating turbulence, e.g. by stirring, by increasing the force of circulation
-
- 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
-
- 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
- F28F21/082—Heat exchange elements made from metals or metal alloys from steel or ferrous alloys
-
- 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
- F28F21/084—Heat exchange elements made from metals or metal alloys from aluminium or aluminium alloys
-
- 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
- F28D21/00—Heat-exchange apparatus not covered by any of the groups F28D1/00 - F28D20/00
- F28D2021/0019—Other heat exchangers for particular applications; Heat exchange systems not otherwise provided for
- F28D2021/0024—Other heat exchangers for particular applications; Heat exchange systems not otherwise provided for for combustion apparatus, e.g. for boilers
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F2215/00—Fins
- F28F2215/04—Assemblies of fins having different features, e.g. with different fin densities
Definitions
- the present invention relates to a tube for conveying exhaust gases in heat exchange devices, particularly boilers for generating hot water or steam.
- Conventional heat exchange devices have tubes designed to convey exhaust gases generated by combustion in adapted furnaces inserted within a vessel that contains the fluid to be heated.
- Heat exchange devices are known, such as for example certain types of boilers for generating hot water, or boilers for generating steam, in which the exhaust gas conveyance tubes operate in high temperature conditions, with the consequent onset of problems linked to the strength of the materials. Disclosure of the Invention
- the aim of the present invention is to devise an exhaust gas conveyance tube that can ensure, in addition to high-level heat exchange characteristics, also absolute assurance of operating in safe conditions.
- a tube for conveying exhaust gases in a heat exchange device, particularly a boiler for generating steam which comprises internally fms in contact with the wall of said tube, characterized in that the fms arranged proximate to the exhaust gas inlet end are made of steel, while the fins arranged proximate to the exhaust gas exit end are made of aluminum.
- Figure 1 is a sectional view of the tube, taken along a longitudinal plane;
- Figures 2 and 3 are respectively sectional views taken along the line
- Figure 4 is a sectional view, taken along a longitudinal plane, of a tube according to another embodiment.
- the reference numeral 1 generally designates a tube according to the invention, designed to be crossed by the exhaust gases in the direction of the arrow of Figure 1.
- a turbulator 2 is provided, in a known manner, at the exhaust gas inlet end, and inside the tube fins are provided in contact with the wall of said tube, which according to an important feature of the invention are divided into two groups.
- the fins, generally designated by the reference numeral 3, of the first group, located proximate to the exhaust gas inlet end, are made of steel, while the fins of the second group, generally designated by the reference numeral 4, located proximate to the exhaust gas exit end, are made of aluminum, and between the two groups of fins there is an interruption portion determined by the presence of a spacer 5.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
ITMI2009A000404A IT1393254B1 (it) | 2009-03-17 | 2009-03-17 | Tubo di convogliamento di fumi in apparecchi di scambio termico, in particolare caldaie per la produzione di acqua calda o di vapor d'acqua. |
PCT/EP2010/052724 WO2010105911A1 (en) | 2009-03-17 | 2010-03-03 | Tube for conveying exhaust gases in heat exchange devices, particularly boilers for genereting hot water or steam |
Publications (1)
Publication Number | Publication Date |
---|---|
EP2409105A1 true EP2409105A1 (de) | 2012-01-25 |
Family
ID=41501529
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP10708516A Withdrawn EP2409105A1 (de) | 2009-03-17 | 2010-03-03 | Rohr zur beförderung von abgasen in wärmeaustauschvorrichtungen, insbesondere kesseln, zur erzeugung von heissem wasser oder dampf |
Country Status (3)
Country | Link |
---|---|
EP (1) | EP2409105A1 (de) |
IT (1) | IT1393254B1 (de) |
WO (1) | WO2010105911A1 (de) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP3171116A1 (de) * | 2015-11-21 | 2017-05-24 | Linde Aktiengesellschaft | Gewickelter wärmeübertrager mit turbulatoren |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20050274501A1 (en) * | 2004-06-09 | 2005-12-15 | Agee Keith D | Decreased hot side fin density heat exchanger |
WO2007104580A2 (de) * | 2006-03-16 | 2007-09-20 | Behr Gmbh & Co. Kg | Wärmetauscher für ein kraftfahrzeug |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2000111277A (ja) * | 1998-10-09 | 2000-04-18 | Toyota Motor Corp | 2重配管式熱交換器 |
JP2000161872A (ja) * | 1998-11-25 | 2000-06-16 | Toyota Motor Corp | 2重配管式熱交換器 |
JP4345470B2 (ja) * | 2003-12-18 | 2009-10-14 | いすゞ自動車株式会社 | エンジンのegrクーラー |
JP2008008549A (ja) * | 2006-06-29 | 2008-01-17 | Kitayama Seisakusho:Kk | 伝熱管及び液加熱装置 |
DE102008014169A1 (de) * | 2007-04-26 | 2009-01-08 | Behr Gmbh & Co. Kg | Wärmetauscher, insbesondere zur Abgaskühlung, System mit einem Wärmetauscher zur Abgaskühlung, Verfahren zum Betreiben eines Wärmetauschers |
KR100999607B1 (ko) * | 2007-06-05 | 2010-12-08 | 기아자동차주식회사 | 재순환 배기가스 냉각장치 및 냉각방법 |
-
2009
- 2009-03-17 IT ITMI2009A000404A patent/IT1393254B1/it active
-
2010
- 2010-03-03 WO PCT/EP2010/052724 patent/WO2010105911A1/en active Application Filing
- 2010-03-03 EP EP10708516A patent/EP2409105A1/de not_active Withdrawn
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20050274501A1 (en) * | 2004-06-09 | 2005-12-15 | Agee Keith D | Decreased hot side fin density heat exchanger |
WO2007104580A2 (de) * | 2006-03-16 | 2007-09-20 | Behr Gmbh & Co. Kg | Wärmetauscher für ein kraftfahrzeug |
Non-Patent Citations (1)
Title |
---|
See also references of WO2010105911A1 * |
Also Published As
Publication number | Publication date |
---|---|
IT1393254B1 (it) | 2012-04-12 |
WO2010105911A8 (en) | 2010-12-29 |
WO2010105911A1 (en) | 2010-09-23 |
ITMI20090404A1 (it) | 2010-09-18 |
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Legal Events
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PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
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17P | Request for examination filed |
Effective date: 20110901 |
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AK | Designated contracting states |
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AX | Request for extension of the european patent |
Extension state: AL BA ME RS |
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17Q | First examination report despatched |
Effective date: 20160831 |
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STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN |
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18D | Application deemed to be withdrawn |
Effective date: 20171205 |