DE20100116U1 - Heat exchanger tube for liquid or gaseous media - Google Patents

Heat exchanger tube for liquid or gaseous media

Info

Publication number
DE20100116U1
DE20100116U1 DE20100116U DE20100116U DE20100116U1 DE 20100116 U1 DE20100116 U1 DE 20100116U1 DE 20100116 U DE20100116 U DE 20100116U DE 20100116 U DE20100116 U DE 20100116U DE 20100116 U1 DE20100116 U1 DE 20100116U1
Authority
DE
Germany
Prior art keywords
tube
heat exchanger
area
exchanger tube
swirl
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.)
Expired - Lifetime
Application number
DE20100116U
Other languages
German (de)
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.)
HDE SOLUTIONS GMBH, DE
Original Assignee
hde Metallwerk GmbH
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 hde Metallwerk GmbH filed Critical hde Metallwerk GmbH
Priority to DE20100116U priority Critical patent/DE20100116U1/en
Publication of DE20100116U1 publication Critical patent/DE20100116U1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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
    • F28F1/08—Tubular elements crimped or corrugated in longitudinal 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
    • F28F1/02—Tubular elements of cross-section which is non-circular
    • F28F1/025—Tubular elements of cross-section which is non-circular with variable shape, e.g. with modified tube ends, with different geometrical features
    • 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
    • F28F1/424—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

Landscapes

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

Description

Der Beschreibungstext wurde nicht elektronisch erfaßt The description text was not recorded electronically  

Der Beschreibungstext wurde nicht elektronisch erfaßt The description text was not recorded electronically  

Der Beschreibungstext wurde nicht elektronisch erfaßt The description text was not recorded electronically  

Der Beschreibungstext wurde nicht elektronisch erfaßt The description text was not recorded electronically  

Der Beschreibungstext wurde nicht elektronisch erfaßt The description text was not recorded electronically  

Der Beschreibungstext wurde nicht elektronisch erfaßt The description text was not recorded electronically  

Der Beschreibungstext wurde nicht elektronisch erfaßtThe description text was not recorded electronically

Claims (14)

1. Wärmetauscherrohr für flüssige und gasförmige Medien, insbesondere für Rohrbündel-Wärmetauscher zur Kühlung von Verbrennungsgasen eines Motors, mit einem Rohreintrittsbereich, einem Rohraustrittsbereich und einem mittleren Rohrbereich, wobei eine Rohrwand sich wiederholende, den Strömungsquerschnitt partiell einengende Strukturen, insbesondere Drallnuten, Sicken, Einprägungen od. dgl., zur Förderung des Wärmeüberganges aufweist, dadurch gekennzeichnet, dass sich in wenigstens einem Teilbereich des Wärmetauscherrohres (11) die Dichte der den Strömungsquerschnitt partiell einengenden Strukturen pro Rohrlängeneinheit und/oder der Betrag der Strömungseinengung ändert.1. Heat exchanger tube for liquid and gaseous media, in particular for shell-and-tube heat exchangers for cooling combustion gases of an engine, with a tube inlet area, a tube outlet area and a central tube area, with a tube wall repeating structures that partially constrict the flow cross-section, in particular swirl grooves, beads, embossments od. Like., To promote the heat transfer, characterized in that in at least a portion of the heat exchanger tube ( 11 ) changes the density of the structures partially restricting the flow cross section per tube length unit and / or the amount of flow restriction. 2. Wärmetauscherrohr nach Anspruch 1, dadurch gekennzeichnet, dass der Teilbereich den Rohraustrittsbereich (19) umfasst und dass sich dort die Dichte der den Strömungsquerschnitt partiell einengenden Strukturen pro Rohrlängeneinheit/der Betrag der Strömungseinengung verringert.2. Heat exchanger pipe according to claim 1, characterized in that the partial area comprises the pipe outlet area ( 19 ) and that there the density of the structures partially restricting the flow cross section per pipe length unit / the amount of the flow restriction is reduced. 3. Wärmetauscherrohr nach Anspruch 2, dadurch gekennzeichnet, dass im Rohraustrittbereich (19) Drallnuten (20) angeordnet sind, deren Drallwinkel (d2) größer ist als der Drallwinkel (d1) der im mittleren Rohrbereich (18) angeordneten Drallnuten (20).3. Heat exchanger pipe according to claim 2, characterized in that swirl grooves ( 20 ) are arranged in the pipe outlet area ( 19 ), the swirl angle (d 2 ) of which is greater than the swirl angle (d 1 ) of the swirl grooves ( 20 ) arranged in the central pipe area ( 18 ). . 4. Wärmetauscherrohr nach Anspruch 2 oder 3, dadurch gekennzeichnet, dass im Rohraustrittsbereich (19) Drallnuten (20) angeordnet sind, deren Dralltiefe (t1) geringer ist als die Dralltiefe (t2) der Drallnuten (20) des mittleren Rohrbereichs (18).4. Heat exchanger tube according to claim 2 or 3, characterized in that swirl grooves ( 20 ) are arranged in the tube outlet region ( 19 ), the swirl depth (t 1 ) of which is less than the swirl depth (t 2 ) of the swirl grooves ( 20 ) of the central tube region ( 18 ). 5. Wärmetauscherrohr nach einem der Ansprüche 2 bis 4, dadurch gekennzeichnet, das im Rohraustrittsbereich (19) Sicken (21) angeordnet sind, deren Abstand (s1) größer ist als der Abstand (s2) der Sicken (21) des mittleren Rohrbereichs (18). 5. Heat exchanger tube according to one of claims 2 to 4, characterized in that in the tube outlet area ( 19 ) beads ( 21 ) are arranged, the distance (s 1 ) is greater than the distance (s2) of the beads ( 21 ) of the central tube area ( 18 ). 6. Wärmetauscherrohr nach einem der Ansprüche 2 bis 5, dadurch gekennzeichnet, dass im Rohraustrittsbereich (19) Sicken (21) angeordnet sind, deren Sickentiefe kleiner ist als die Sickentiefe der Sicken (21) des mittleren Rohrbereichs (18).6. Heat exchanger tube according to one of claims 2 to 5, characterized in that beads ( 21 ) are arranged in the tube outlet area ( 19 ), the bead depth of which is smaller than the bead depth of the beads ( 21 ) of the central tube area ( 18 ). 7. Wärmetauscherrohr nach einem der Ansprüche 2 bis 6, dadurch gekennzeichnet, dass im Rohraustrittsbereich (19) lokal begrenzte Einprägungen (22) vorhanden sind, deren Anzahl pro Flächeneinheit kleiner ist als im mittleren Rohrbereich (18).7. Heat exchanger tube according to one of claims 2 to 6, characterized in that locally limited impressions ( 22 ) are present in the tube outlet area ( 19 ), the number per unit area is smaller than in the central tube area ( 18 ). 8. Wärmetauscherrohr nach einem der Ansprüche 2 bis 7, dadurch gekennzeichnet, dass im Rohraustrittsbereich (19) lokal begrenzte Einprägungen (22) vorhanden sind, deren Prägetiefe geringer ist als im mittleren Rohrbereich (18).8. Heat exchanger tube according to one of claims 2 to 7, characterized in that locally limited impressions ( 22 ) are present in the tube outlet area ( 19 ), the embossing depth of which is less than in the central tube area ( 18 ). 9. Wärmetauscherrohr nach einem der Ansprüche 2 bis 8, dadurch gekennzeichnet, dass die Einprägungen (22) im wesentlichen quer zur Strömungsrichtung angeordnet sind.9. Heat exchanger tube according to one of claims 2 to 8, characterized in that the impressions ( 22 ) are arranged substantially transversely to the flow direction. 10. Wärmetauscherrohr nach einem der Ansprüche 2 bis 9, dadurch gekennzeichnet, dass die Einprägungen (23) im wesentlichen in Strömungsrichtung angeordnet sind.10. Heat exchanger tube according to one of claims 2 to 9, characterized in that the impressions ( 23 ) are arranged essentially in the flow direction. 11. Wärmetauscherrohr nach einem der vorangehenden Ansprüche, dadurch gekennzeichnet, dass sich der Strömungsquerschnitt des Rohraustrittsbereichs (19) gegenüber dem mittleren Rohrbereich (18) deutlich vergrößert.11. Heat exchanger tube according to one of the preceding claims, characterized in that the flow cross section of the tube outlet area ( 19 ) compared to the central tube area ( 18 ) increases significantly. 12. Wärmetauscherrohr nach Anspruch 10, dadurch gekennzeichnet, dass sich der Strömungsquerschnitt kontinuierlich vergrößert.12. Heat exchanger tube according to claim 10, characterized in that the flow cross-section increases continuously. 13. Wärmetauscherrohr nach Anspruch 10, dass sich die umlaufende Rohrwand im Rohraustrittsbereich (19) kontinuierlich trichterförmig erweitert. 13. Heat exchanger tube according to claim 10, that the circumferential tube wall in the tube outlet area ( 19 ) is continuously funnel-shaped. 14. Wärmetauscherrohr nach Anspruch 10, dadurch gekennzeichnet, dass sich der im mittleren Rohrbereich (18) ovale Strömungsquerschnitt in beiden Richtungen seiner längeren Achse erweitert.14. Heat exchanger tube according to claim 10, characterized in that the oval flow cross section in the central tube region ( 18 ) widens in both directions of its longer axis.
DE20100116U 2001-01-05 2001-01-05 Heat exchanger tube for liquid or gaseous media Expired - Lifetime DE20100116U1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE20100116U DE20100116U1 (en) 2001-01-05 2001-01-05 Heat exchanger tube for liquid or gaseous media

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE20100116U DE20100116U1 (en) 2001-01-05 2001-01-05 Heat exchanger tube for liquid or gaseous media

Publications (1)

Publication Number Publication Date
DE20100116U1 true DE20100116U1 (en) 2001-03-22

Family

ID=7951219

Family Applications (1)

Application Number Title Priority Date Filing Date
DE20100116U Expired - Lifetime DE20100116U1 (en) 2001-01-05 2001-01-05 Heat exchanger tube for liquid or gaseous media

Country Status (1)

Country Link
DE (1) DE20100116U1 (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2003036212A1 (en) * 2001-10-26 2003-05-01 Valeo Termico, S.A. Heat exchanger, especially for the cooling of gases in an exhaust gas recycling system
EP1314947A2 (en) * 2001-11-22 2003-05-28 Witzenmann GmbH Heat exchanger, more particularly for heating unit
DE10333877A1 (en) * 2003-07-25 2005-02-24 Sdk-Technik Gmbh Cooling of power electronics is provided by closed fluid circuit having evaporator and condenser together with a fan
EP2459954A2 (en) * 2009-07-29 2012-06-06 Thermax Limited A heat exchanger tube

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2003036212A1 (en) * 2001-10-26 2003-05-01 Valeo Termico, S.A. Heat exchanger, especially for the cooling of gases in an exhaust gas recycling system
ES2199036A1 (en) * 2001-10-26 2004-02-01 Valeo Termico Sa Heat exchanger, especially for the cooling of gases in an exhaust gas recycling system
EP1314947A2 (en) * 2001-11-22 2003-05-28 Witzenmann GmbH Heat exchanger, more particularly for heating unit
EP1314947A3 (en) * 2001-11-22 2004-12-15 Witzenmann GmbH Heat exchanger, more particularly for heating unit
DE10333877A1 (en) * 2003-07-25 2005-02-24 Sdk-Technik Gmbh Cooling of power electronics is provided by closed fluid circuit having evaporator and condenser together with a fan
EP2459954A2 (en) * 2009-07-29 2012-06-06 Thermax Limited A heat exchanger tube
EP2459954A4 (en) * 2009-07-29 2014-05-21 Thermax Ltd A heat exchanger tube

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Legal Events

Date Code Title Description
R207 Utility model specification

Effective date: 20010426

R150 Term of protection extended to 6 years

Effective date: 20040326

R081 Change of applicant/patentee

Owner name: HDE SOLUTIONS GMBH, DE

Free format text: FORMER OWNER: HDE METALLWERK GMBH, 58706 MENDEN, DE

Effective date: 20040617

R157 Lapse of ip right after 6 years

Effective date: 20070801