EP2718653A1 - Tube d'échangeur de chaleur - Google Patents

Tube d'échangeur de chaleur

Info

Publication number
EP2718653A1
EP2718653A1 EP12737623.4A EP12737623A EP2718653A1 EP 2718653 A1 EP2718653 A1 EP 2718653A1 EP 12737623 A EP12737623 A EP 12737623A EP 2718653 A1 EP2718653 A1 EP 2718653A1
Authority
EP
European Patent Office
Prior art keywords
tube
fins
section
insert
cross
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Withdrawn
Application number
EP12737623.4A
Other languages
German (de)
English (en)
Inventor
Mariusz Kuzma
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.)
AIC Sp zoo
Original Assignee
AIC Sp zoo
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 AIC Sp zoo filed Critical AIC Sp zoo
Publication of EP2718653A1 publication Critical patent/EP2718653A1/fr
Withdrawn legal-status Critical Current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
    • F28F1/10—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses
    • F28F1/105—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses the means being corrugated elements extending around the tubular elements
    • 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

Definitions

  • the invention concerns a heat exchanger tube fitted with inserts, which increase the heat exchange surface and/or trigger turbulence of the agent flowing through.
  • a heat exchanger tube particularly designed for the Stirling cooler, which contains an inner cylindrical insert fitted coaxially, composed of a large number of V-shaped corrugated ring fins formed in a plate, the inner and/or outer edges of which are permanently connected to the ring.
  • WO 01/63197A1 Also known from patent specification WO 01/63197A1 is a heat exchanger tube fitted with an inner element of multi-surface side walls in the 'U' or 'V shapes, arcs or trapezium-shaped teeth, made of a flexible plate the end sides of which are mutually connected.
  • the element is fitted coaxially inside the tube body, its outer edges contacting the inner surface of the tube body.
  • the purpose of this invention is to develop such a tube structure as to ensure increased heat exchange coefficient compared to the known solutions, increased strength parameters, and wear-and-tear resilience while being easy to produce.
  • the tube may be of any shape, particularly circular, oval, or polygonal.
  • the fin walls may be flat and/or oval, their curvature of any desired radius.
  • the fin walls touching on the inner wall of the tube body are permanently connected to it.
  • the minimum height of the fin in cross-section is no less than 1 ⁇ 2 of the inner radius of the tube body.
  • the number of fins depends on the shape and size of the tube body.
  • the insert and the tube body are made of stainless steel.
  • a pipe or rod may be placed axially in the tube, circular, oval, or polygonal in cross-section.
  • the insert with the fins shaped in this way has a centrally formed cylindrical wall formed by the converging surfaces in between the fins, which increases stability of the tube. The resilience of the insert guarantees good contact with the inner tube wall and pertains substantially to the spontaneous formation of its internal cylindrical wall.
  • Fig. 3 shows the tube with a two-piece insert, .
  • Fig. 6 shows a section of a flat-surface fin
  • Figs. 9a, 10a, 11a, and 12a show tubes in an orthographic projection
  • Figs. 9b, 10b, lib, and 12b show tubes in an orthographic projection with an extra cylindrical axially-positioned inner pipe
  • Figs. 9d, lOd, lid, and 12d show tubes in an orthographic projection with an additional polygonal pipe positioned axially
  • Figs. 9e, lOe, lie, and 12e show tubes in an orthographic projection with a polygonal rod positioned axially.
  • the resilient insert 2 shown on Fig. 4 and Fig. 5 is placed, formed in the shape of a bushing out of a rectangular stainless steel plate, with three-face fins 3 shaped outwards, triangular in cross- section, with centrally pointing apexes and the opposite sides touching on the inner wall of the tube body 1.
  • the surface sections 4 in between the fins 3 form the inner cylindrical surface of the insert 2.
  • the insert 2 may be made up of a single piece, which is shown on Fig. 2, two pieces, as shown on Fig. 3, or any larger number of pieces.
  • the tube is circular in shape.
  • the walls of the fins 3 are flat, which is depicted on Figs. lOa-lOe. In other invention embodiments the walls of the fins 3 are oval with the curvatures of different radiuses, as shown on Figs. 9,11,12.
  • the fin walls are added extra ribbing formed on the surface by deflecting notched sections, as shown on Fig. 7, or by embossing shown on Fig. 8.
  • the walls of the fins 3 touching on the inner wall of the tube body 1 are not permanently connected to it, while in another the connection is permanent.
  • a pipe 7, cylindrical in cross-section, runs axialiy inside the tube, which is shown on Figs. 9b, 10b, lib, 12b.
  • the pipe is polygonal in cross-section, as presented on Figs. 9d, lOd, lid, 12d.
  • a rod 8, circular in cross-section is placed axialiy in the tube, which is presented on Figs. 9c, 10c, 11c, 12c, and a further embodiment the rod 8 is polygonal in cross- section, as shown on Figs. 9e, lOe, lie, 12e.

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Geometry (AREA)
  • Physical Or Chemical Processes And Apparatus (AREA)
  • Rigid Pipes And Flexible Pipes (AREA)

Abstract

L'invention porte sur un tube d'échangeur de chaleur auquel est ajusté un élément intérieur positionné coaxialement pour augmenter l'aire de la surface d'échange de chaleur et/ou agiter l'agent qui y passe, à savoir un insert élastique (2) formé en une chemise à partir d'une plaque rectangulaire, avec des ailettes à trois faces (3) conformées vers l'extérieur, de section transversale triangulaire, présentant des sommets qui pointent au centre, et les côtés opposés touchant la paroi intérieure du corps tubulaire (1), à l'endroit où les sections de surface (4) entre les ailettes (3) forment la surface cylindrique intérieure de l'insert. Les ailettes (3) ont, de préférence, une ondulation additionnelle qui est formée par infléchissement de sections encochées (5) et/ou par gaufrage (6).
EP12737623.4A 2011-06-10 2012-06-06 Tube d'échangeur de chaleur Withdrawn EP2718653A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
PL395219A PL220684B1 (pl) 2011-06-10 2011-06-10 Rurka wymiennika ciepła
PCT/PL2012/000044 WO2012169915A1 (fr) 2011-06-10 2012-06-06 Tube d'échangeur de chaleur

Publications (1)

Publication Number Publication Date
EP2718653A1 true EP2718653A1 (fr) 2014-04-16

Family

ID=46545868

Family Applications (1)

Application Number Title Priority Date Filing Date
EP12737623.4A Withdrawn EP2718653A1 (fr) 2011-06-10 2012-06-06 Tube d'échangeur de chaleur

Country Status (3)

Country Link
EP (1) EP2718653A1 (fr)
PL (1) PL220684B1 (fr)
WO (1) WO2012169915A1 (fr)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105403074B (zh) * 2015-11-30 2018-11-27 浙江国正安全技术有限公司 一种换热器
CN105403089B (zh) * 2015-11-30 2018-06-12 成都德善能科技有限公司 一种智能换热器系统
US20180372413A1 (en) 2017-06-22 2018-12-27 Rheem Manufacturing Company Heat Exchanger Tubes And Tube Assembly Configurations
PL422945A1 (pl) * 2017-09-22 2019-03-25 Normax-Invest Spółka Z Ograniczoną Odpowiedzialnością Sposób ograniczania ilości płynu chłodniczego, zwłaszcza płynu ulegającego przemianom fazowym, w rurowych wymiennikach ciepła oraz deflektor do realizacji tego sposobu
CN107976101B (zh) * 2017-12-22 2023-07-14 上海发电设备成套设计研究院有限责任公司 一种外翅片换热管的使用方法

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3200848A (en) * 1963-05-29 1965-08-17 Takagi Ichizo Heat exchanger tubes
US5558069A (en) * 1995-11-09 1996-09-24 Livernois Research & Development Company Method and apparatus for fluid temperature control
JPH10185480A (ja) * 1996-12-18 1998-07-14 Sango Co Ltd クロスフィンチューブの製造方法
DE59809395D1 (de) * 1997-08-19 2003-10-02 Grueter Elektroapp Ag Bassersd Extruderrohr mit einem Wärmetauscher
JP2000161873A (ja) * 1998-11-26 2000-06-16 Toyota Motor Corp 熱交換器
KR20000024564A (ko) 2000-02-21 2000-05-06 유병재 열교환기용 파이프
EP1314938B1 (fr) 2000-09-01 2005-05-11 Sharp Kabushiki Kaisha Echangeur thermique pour appareil refrigerant de stirling, dispositif echangeur thermique, et procede de fabrication d'un dispositif echangeur thermique
JP2005083741A (ja) * 2003-09-05 2005-03-31 Lg Electronics Inc 熱交換器及び冷媒切り替え手段を有する空調装置

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
None *
See also references of WO2012169915A1 *

Also Published As

Publication number Publication date
PL395219A1 (pl) 2012-12-17
WO2012169915A1 (fr) 2012-12-13
PL220684B1 (pl) 2015-11-30

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