WO2011057594A1 - Échangeur thermique à tubes concentriques - Google Patents

Échangeur thermique à tubes concentriques Download PDF

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Publication number
WO2011057594A1
WO2011057594A1 PCT/DE2009/001583 DE2009001583W WO2011057594A1 WO 2011057594 A1 WO2011057594 A1 WO 2011057594A1 DE 2009001583 W DE2009001583 W DE 2009001583W WO 2011057594 A1 WO2011057594 A1 WO 2011057594A1
Authority
WO
WIPO (PCT)
Prior art keywords
tube
heat exchanger
pipe
exchanger according
connection
Prior art date
Application number
PCT/DE2009/001583
Other languages
German (de)
English (en)
Inventor
Dirk Zimmermann
Original Assignee
Az Vermögensverwaltung Gmbh & Co. Kg
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 Az Vermögensverwaltung Gmbh & Co. Kg filed Critical Az Vermögensverwaltung Gmbh & Co. Kg
Priority to PCT/DE2009/001583 priority Critical patent/WO2011057594A1/fr
Publication of WO2011057594A1 publication Critical patent/WO2011057594A1/fr

Links

Classifications

    • 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
    • F28D7/00—Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall
    • F28D7/10—Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall the conduits being arranged one within the other, e.g. concentrically
    • F28D7/106—Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall the conduits being arranged one within the other, e.g. concentrically consisting of two coaxial conduits or modules of two coaxial conduits
    • 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
    • F28D7/00—Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall
    • F28D7/10—Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall the conduits being arranged one within the other, e.g. concentrically
    • F28D7/12—Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall the conduits being arranged one within the other, e.g. concentrically the surrounding tube being closed at one end, e.g. return type
    • 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
    • F28F9/00—Casings; Header boxes; Auxiliary supports for elements; Auxiliary members within casings
    • F28F9/02—Header boxes; End plates
    • F28F9/0246—Arrangements for connecting header boxes with flow lines
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F2270/00—Thermal insulation; Thermal decoupling

Definitions

  • Tube-to-Tube Heat Exchanger The invention relates to tube-to-tube heat exchangers.
  • Embodiments are also known in which the coaxially juxtaposed tubes are gripped on one side in a fitting and are connected to leads, while on the opposite side the inner tube is slightly shortened while the outer tube is closed and thereby in gives the tubes an opposite flow.
  • Such type tube-in-tube heat exchangers are often used within heat exchanger tanks, wherein the outer tube is flowed around by a further medium.
  • the tube-in-tube heat exchangers described above have too small a surface area, which is why heat transfer from one medium to another is limited by the small surface area of the respective active tube.
  • a corrugated pipe is to be used as the heat exchanger tube. It should be inserted into the corrugated tube, a cylindrical tube of the shape that the inserted tube rests with its wall on the inside of the wave troughs of the corrugated tube. It is provided that the corrugated tube is helically corrugated and a heat exchange medium in the remaining cross sections, which form the wave crests, flows. As a result, there is a mismatch with regard to the flow cross sections, which deteriorates the effectiveness of this type of heat exchanger, at least when used with media of the same physical state.
  • a proposal in DD 247 965 A1 provides to arrange tube-in-tube heat exchanger with an outer corrugated pipe in a larger container several times.
  • the corrugated tube is to be flowed around by a medium, while coaxially in the corrugated tube, a cylindrical tube is arranged and the opposite line strands represents the flowing medium in the corrugated tube.
  • This arrangement can only be used in a serving as a heat exchanger container.
  • an arrangement consisting of two corrugated tubes arranged coaxially with one another is to be designed in such a way that an inner corrugated tube is positioned in an outer corrugated tube in such a way that both Form the identical wave profile a gap-like gap with longitudinally approximately meandering course. Due to the frequent deflections, a particularly strong swirling of the flowing medium is to be achieved in conjunction with the frequent deflections of the media flow and thus a high degree of conversion efficiency. A disadvantage of this solution is that a narrow meander-shaped gap is always set, thereby inevitably resulting in a reduced volume flow. If there is a heat-carrying medium in the inner tube, only a part of the transported heat energy can be absorbed in the surrounding gap.
  • This object is achieved by a tube-in-tube heat exchanger having the features of the characterizing part of claim 1 or claim 2 in cooperation with the features of the preamble of these claims.
  • Secondary and subordinate claims describe other embodiments of the tube-in-tube heat exchanger according to the invention.
  • Pipe is a finite section of a rigid or flexible pipe.
  • First pipe is the outer pipe of a pipe-to-pipe heat exchanger.
  • Second tube is the tube arranged in the interior of the first tube.
  • Corrugated pipe is a pipe or hose with a wave-shaped profiled wall, wherein the profiling can be parallel or spiral.
  • ком ⁇ онент is a component or a structural unit, the first and second tube can close tightly at the tube ends and each tube cross sections each provides a connection area available.
  • Ver gleich Swiss- is a component or a structural unit which is adapted to close the pipe end of the first tube tight.
  • a tube-in-tube heat exchanger is designed so that its second, internal tube is designed as a corrugated tube.
  • tube-in-tube heat exchanger can be dimensioned according to the technical tasks to be solved. In terms of their structure, they are limited to a few starting materials, require no special technologies, can even be produced by hand and are therefore extremely inexpensive to produce.
  • the tube-in-tube heat exchanger consists of a first tube and a second tube arranged in the interior of the first tube.
  • First and second tube are connected to each other at least at one end.
  • the second tube is a corrugated tube and provides for an intense heat transfer through the turbulence occurring in the region of its wall in the flowing medium.
  • the outer diameter of the second tube is smaller than the inner diameter of the first tube, whereby the assembly of the tube-in-tube heat exchanger according to the invention is considerably facilitated.
  • the choice of the dimensions of the first and the second tube there is considerable freedom of choice with regard to the diameter ranges and also with regard to the lengths to be selected. Forced interactions of the medium between the two tube walls are largely avoided in the interest of a high degree of conversion.
  • a second tube is first brought to a finite length. This is subsequently tightly connected to a connector. Then, a first tube is cut to a finite length and then also connected to a connector. On the opposite side, the two pipe ends are also connected to a connector. In the production of the tight connection with the fittings at the same time takes place the spacing of the second tube relative to the first tube. Appropriately - but not necessarily - is a coaxial arrangement.
  • Another embodiment of the tube-in-tube heat exchanger provides for using a shortened second tube and sealingly connecting the first and second tubes to a fitting.
  • the second tube is shortened compared to the first tube, so that at the opposite end an overflow area between the two tubes is formed.
  • the tube end of the first tube is sealed with a closure piece. This results in the possibility to supply a medium via one of the connections of the connection piece, to redirect the medium flow at the end opposite the connection piece of the tube-in-tube heat exchanger and return it to the connection piece and continue it via the second existing line connection.
  • the first tube is preferably a smooth tube, but may also be designed as a corrugated tube. It may also be made of metallic materials, plastics, which may also be fiber or fabric reinforced, glass or ceramic materials, made of vulcanizable materials, also with fabric reinforcement, or as a multi-layer structure of the aforementioned materials. Likewise, jacketed textile structures in tubular form may be used.
  • Another embodiment provides additional insulating material or a coating for insulation on the first tube.
  • the fitting of the tube-in-tube heat exchanger is characterized in that it forms two separate spaces in its housing, each having connection to one of the two tubes.
  • the connection areas to the first and the second pipe are approximately concentric to one another.
  • the connection between the connector and the first and the second tube can be carried out in any way. It can be carried out both a compound using soft seals, a cutting or pressure ring connection, a cohesive connection or an adhesive bond.
  • each housing chamber is connected to an incoming or outgoing line area or to a collecting space for the medium.
  • connection piece will have a connection possibility for the first pipe, this connection preferably being led out laterally and having a connection possibility for the second pipe, which is preferably led out axially.
  • Another embodiment of the connector provides to provide an axial bore in the region of the introduced second conduit into which subsequently the second conduit can be inserted. This is already pre-assembled in this case and carries at its ends cylindrical connecting pieces, which close the axial bores during installation of the second tube or are additionally sealed.
  • Another embodiment provides a device for influencing one or both media streams.
  • the influence can extend to the shutting off of one or both line channels. This can be influenced by valves, taps or valves. Furthermore, the influence can be done manually or with auxiliary power, also by influencing due to control signals from external devices.
  • the invention will be explained in more detail below with reference to embodiments. Showing:
  • Fig. 1 the basic arrangement for the tube-in-tube heat exchanger according to the invention.
  • Fig. 2 is a sectional view of one end of the tube-in-tube heat exchanger and the connection means.
  • Fig. 3- an embodiment of a one-sided tube-in-tube heat exchanger.
  • FIG. 4 shows an embodiment of the tube-in-tube heat exchanger having a plurality of second tubes within a first tube.
  • Fig. 5- an embodiment with a flexible first tube.
  • connection means 1 is designed so that it forms a concentric duct 2, which is currently guided.
  • a second conduit is arranged as collecting space 3 around the conduit 2 around and is connected via a connection 4 with conduit systems.
  • connection means 1 At the front side 5 of the connection means 1, a second corrugated tube 6 is connected by a soldering 7 or welding to the connection means.
  • a first line 8 is also connected to the front side 5 of the connection means 1 by soldering or welding. It can also be other forms of connection, in particular detachable, executed.
  • connection means At the opposite side of the pipe-in-tube heat exchanger a similarly constructed connection means is present.
  • tube-in-tube heat exchanger provides to connect the first tube 9 with a housing 10 and to produce a separate unit. Another separate unit is generated by the connection of a second corrugated tube 11 with a nozzle 12. Subsequently, this assembly is inserted through a cylindrical bore 13 in the housing 10 and the nozzle 12 sealed from the housing 10.
  • connection side is designed as described above.
  • a second tube 15 is shortened and opposite the gap 16 between the first 17 and second tube 15 open.
  • the flowing medium first flows through the second tube 15 and passes at the exit point 18 into the intermediate space 16 between the first 17 and the second tube 15.
  • the first tube 17 is designed to project over the second tube 15, wherein it is closed at its end face 19. This can be done for example by squeezing and a subsequent soldering or welding process. Furthermore, any kind of tight closure is possible.
  • first tube 20 in this case has a larger diameter and the connecting means 22 is equipped with a larger collecting space 23.
  • the first tube 24 is a flexible tube and the second tube 25 is a corrugated tube, whereby a tube-in-tube heat exchanger of this kind is no longer connected to a linear line guide.
  • the flexible hose consists of a suitable material with increased thermal insulation, at the same time the heat losses via the first tube 24 can be reduced.
  • the first tube 24 in each of the embodiments described above may be additionally insulated by a heat-insulating sheathing.
  • the invention thus has the advantage that it makes it possible to produce in a simple manner with a limited number of components tube-in-tube heat exchangers, which can be adjusted in terms of their dimensions in a wide range of existing requirements.

Landscapes

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

Abstract

L'invention concerne un échangeur thermique à tubes concentriques comportant un premier tube extérieur, un deuxième tube intérieur et un élément de liaison reliant les deux tubes de telle manière que l'élément de liaison pour le premier tube et le deuxième tube met à disposition respectivement une liaison de conduite.
PCT/DE2009/001583 2009-11-11 2009-11-11 Échangeur thermique à tubes concentriques WO2011057594A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PCT/DE2009/001583 WO2011057594A1 (fr) 2009-11-11 2009-11-11 Échangeur thermique à tubes concentriques

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/DE2009/001583 WO2011057594A1 (fr) 2009-11-11 2009-11-11 Échangeur thermique à tubes concentriques

Publications (1)

Publication Number Publication Date
WO2011057594A1 true WO2011057594A1 (fr) 2011-05-19

Family

ID=42562563

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/DE2009/001583 WO2011057594A1 (fr) 2009-11-11 2009-11-11 Échangeur thermique à tubes concentriques

Country Status (1)

Country Link
WO (1) WO2011057594A1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102425814A (zh) * 2011-12-02 2012-04-25 中铁建设集团有限公司 冷源机房用强化对流换热型分集水装置
DE202018102625U1 (de) * 2018-05-09 2019-08-14 Solarlux Gmbh Wärmetauscher
EP3848660A1 (fr) * 2020-01-09 2021-07-14 Hutchinson Raccordement étanche d'un connecteur a un échangeur thermique tubulaire coaxial

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB684602A (en) * 1948-08-04 1952-12-24 Giovanni Rossi Improvements in tubular heat exchanger elements, particularly for steam boilers
US4013122A (en) * 1975-05-05 1977-03-22 Richard William Long Diver's gas heater
EP0108525A1 (fr) * 1982-11-03 1984-05-16 Thermodynetics, Inc. Echangeur de chaleur
US4476838A (en) * 1982-12-17 1984-10-16 Nissin Jabara Industries Co., Ltd. Exhaust gas suppressor
DE29817604U1 (de) * 1998-10-02 1998-12-24 Gm Etscheid Anlagen Gmbh Tauchkühler, insbesondere zur Kühlung von Flüssigkeiten wie Wein und Most in Fässern
DE10356447A1 (de) * 2002-12-06 2004-06-24 Denso Corp., Kariya Kältekreislaufvorrichtung
DE10327602A1 (de) * 2003-05-22 2004-12-09 FKW HANNOVER Forschungszentrum für Kältetechnik und Wärmepumpen GmbH Erdwärmesonde
EP1884634A2 (fr) * 2006-08-04 2008-02-06 Toyota Jidosha Kabushiki Kaisha Structure de support pour un échangeur de chaleur dans un système d'échappement
WO2009060487A1 (fr) * 2007-11-05 2009-05-14 Five T S.R.L. Échangeur thermique souple de forme tubulaire

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB684602A (en) * 1948-08-04 1952-12-24 Giovanni Rossi Improvements in tubular heat exchanger elements, particularly for steam boilers
US4013122A (en) * 1975-05-05 1977-03-22 Richard William Long Diver's gas heater
EP0108525A1 (fr) * 1982-11-03 1984-05-16 Thermodynetics, Inc. Echangeur de chaleur
US4476838A (en) * 1982-12-17 1984-10-16 Nissin Jabara Industries Co., Ltd. Exhaust gas suppressor
DE29817604U1 (de) * 1998-10-02 1998-12-24 Gm Etscheid Anlagen Gmbh Tauchkühler, insbesondere zur Kühlung von Flüssigkeiten wie Wein und Most in Fässern
DE10356447A1 (de) * 2002-12-06 2004-06-24 Denso Corp., Kariya Kältekreislaufvorrichtung
DE10327602A1 (de) * 2003-05-22 2004-12-09 FKW HANNOVER Forschungszentrum für Kältetechnik und Wärmepumpen GmbH Erdwärmesonde
EP1884634A2 (fr) * 2006-08-04 2008-02-06 Toyota Jidosha Kabushiki Kaisha Structure de support pour un échangeur de chaleur dans un système d'échappement
WO2009060487A1 (fr) * 2007-11-05 2009-05-14 Five T S.R.L. Échangeur thermique souple de forme tubulaire

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102425814A (zh) * 2011-12-02 2012-04-25 中铁建设集团有限公司 冷源机房用强化对流换热型分集水装置
DE202018102625U1 (de) * 2018-05-09 2019-08-14 Solarlux Gmbh Wärmetauscher
AT16777U1 (de) * 2018-05-09 2020-08-15 Ing Christian Wiegel Dr Wärmetauscher
EP3848660A1 (fr) * 2020-01-09 2021-07-14 Hutchinson Raccordement étanche d'un connecteur a un échangeur thermique tubulaire coaxial
FR3106201A1 (fr) * 2020-01-09 2021-07-16 Hutchinson Raccordement etanche d’un connecteur a un echangeur thermique tubulaire coaxial
US11365939B2 (en) 2020-01-09 2022-06-21 Hutchinson Sealed connection of a connector to a coaxial tubular heat exchanger

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