EP3022510A1 - Échangeur de chaleur muni d'un élément élastique - Google Patents

Échangeur de chaleur muni d'un élément élastique

Info

Publication number
EP3022510A1
EP3022510A1 EP14739358.1A EP14739358A EP3022510A1 EP 3022510 A1 EP3022510 A1 EP 3022510A1 EP 14739358 A EP14739358 A EP 14739358A EP 3022510 A1 EP3022510 A1 EP 3022510A1
Authority
EP
European Patent Office
Prior art keywords
elastic element
heat exchanger
tube
shirt
tube bundle
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Withdrawn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
EP14739358.1A
Other languages
German (de)
English (en)
Inventor
Markus Hammerdinger
Christoph Seeholzer
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.)
Linde GmbH
Original Assignee
Linde 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 Linde GmbH filed Critical Linde GmbH
Priority to EP14739358.1A priority Critical patent/EP3022510A1/fr
Publication of EP3022510A1 publication Critical patent/EP3022510A1/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Withdrawn legal-status Critical Current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
    • F28F9/00—Casings; Header boxes; Auxiliary supports for elements; Auxiliary members within casings
    • F28F9/005—Other auxiliary members within casings, e.g. internal filling means or sealing means
    • 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
    • F28D7/02—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 helically coiled
    • F28D7/024—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 helically coiled the conduits of only one medium being helically coiled tubes, the coils having a cylindrical configuration
    • 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
    • F28D7/04—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 spirally coiled
    • 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
    • F28F9/007—Auxiliary supports for elements
    • F28F9/013—Auxiliary supports for elements for tubes or tube-assemblies
    • 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
    • F28F9/007—Auxiliary supports for elements
    • F28F9/013—Auxiliary supports for elements for tubes or tube-assemblies
    • F28F9/0132—Auxiliary supports for elements for tubes or tube-assemblies formed by slats, tie-rods, articulated or expandable rods
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F2265/00—Safety or protection arrangements; Arrangements for preventing malfunction
    • F28F2265/26—Safety or protection arrangements; Arrangements for preventing malfunction for allowing differential expansion between elements

Definitions

  • the invention relates to a heat exchanger according to claim 1 and its use.
  • Such a heat exchanger has a pressure-bearing jacket, which delimits a jacket space for receiving a first fluid.
  • a tube bundle is arranged with a plurality of tubes for receiving a second fluid, wherein the tubes are arranged in a plurality of tube layers, so that the second fluid can enter into an indirect heat exchange with the guided in the shell space first fluid.
  • a heat exchanger has a arranged in the shell space and the tube bundle surrounding shirt, so that between the tube bundle and the shirt as small as possible, the tube bundle surrounding space is formed. The arrangement of such a shirt around the
  • Tube bundle around is to suppress an excessive bypass flow of the first fluid past the tube bundle, which adversely affect the effectiveness of the
  • Heat exchanger would affect. In certain cases, however, it may be necessary for the shirt to require a greater distance from the tube bundle of the heat exchanger due to operational temperature conditions. This enlarged space serves to temperature-induced movements of the
  • the elastic component makes it possible to reduce a thermally induced voltage by decoupling the thermal diameter change of the tubes and the shirt. Due to the arrangement of the prior art elastic components on the outermost layer of pipe a corresponding space between the shirt and the outermost Pipe layer present, which is due to the dimensions of the elastic member in the radial direction of the tube bundle.
  • Heat exchanger reduced or the liquid (first fluid) are withdrawn from the system, in particular to prevent a system shutdown.
  • the present invention is therefore based on the problem, a heat exchanger of the type mentioned in such a way that the aforementioned disadvantages are mitigated.
  • At least one elastic element in sections i. with a first region disposed between adjacent tube sections in the outermost tube layer, the at least one elastic element having a second region projecting out of the outermost tube layer along the radial direction of the tube bundle, and wherein the at least one elastic element with its standing out of the outermost tube layer second region on the tube bundle or the outermost layer of tube facing the inside of the shirt is applied or is formed.
  • that area serves to connect the elastic element to the shirt.
  • An "outermost layer of the tube bundle” is to be understood in particular as the tube layer which is adjacent to the shirt and in the radial direction of the Tube bundle the smallest distance - compared to the other pipe layers of the tube bundle - to the shirt has.
  • the temperatures of the first and second fluids require - e.g. due to thermal changes in the diameter of the tubes and the shirt - thermally induced stresses between the tube bundle, in particular the outermost one
  • the at least one elastic element allows a decoupling of these thermal changes in diameter of the tubes and the shirt, so that these voltages can be reduced or prevented.
  • the inventive integration of the at least one elastic element in the outermost layer of the heat exchanger, the gap between the outermost layer of tubes and the inside of the shirt, which is formed by the at least one elastic element, can be made substantially smaller than in the prior art and still the provide the required distance for thermal expansion. This is made possible by the fact that the assembly is no longer carried out on the outermost Läge of the heat exchanger, but in the outermost layer of the heat exchanger, whereby the required for the installation path or space, which does not participate in the elastic deformation, not dead Gap remains on the outermost layer of pipe.
  • the at least one elastic element is a so-called non-heat-transmitting element in the sense that the at least one elastic element is not in direct contact with both fluids (such as the tubes of the tube bundle).
  • the shirt contracts and enters
  • the at least one elastic element is designed so that it - elastically deformed due to the force acting on the at least one elastic element by the contraction of the shirt - in return, the shirt has little or no deformation at the points on which it is in
  • Heat exchanger such as a tearing of the shirt prevented.
  • the arrangement of the at least one elastic element between adjacent pipe sections - these are in particular next adjacent pipe sections of a tube of the outermost layer of pipes - allows the provision of a gap, with a comparatively smaller volume, without affecting the requirements for the design of the at least one elastic element must be reduced.
  • Space volume is decreased so that the efficiency of heat exchange of the shell-side first fluid with the second fluid flowing through the inside of the tubes is less affected.
  • the tubes of the tube bundle are wound in several tube layers around a core tube of the heat exchanger, that is, in which
  • Core tube extends generally along a longitudinal axis, which preferably extends along the vertical with respect to a condition of the heat exchanger arranged as intended.
  • Heat exchanger along this longitudinal axis, which forms in particular a cylinder axis of the shell.
  • At least one spacer element is arranged between pipe layers adjacent in the radial direction of the tube bundle.
  • radial direction is understood to mean that direction which runs along the radius of the core tube or tube bundle and is perpendicular to the longitudinal axis or vertical and points away from it.
  • adjacent pipe sections of the outermost layer of pipes is meant, in particular, those sections of the same pipe or two pipes of the outermost layer of pipes which are adjacent to one another along the longitudinal axis and which lie next to one another, ie between two each Such pipe sections along the longitudinal axis of the heat exchanger or core tube no further pipe section is arranged, but possibly one of
  • an “elastic element” is understood according to the invention to mean an element or component whose capability for reversible deformation (deformation) is greater (in the sense that a smaller force is necessary to achieve elastic deformation) than that of the adjacent components, In particular, the tubes, the shirt or the spacer elements.When there is an interaction of the elastic element with the shirt is always a reversible elastic
  • temperature induced deformation e.g. contraction of the shirt
  • the necessary deformation force to achieve a reversible deformation of the at least one elastic element is thus less than the necessary
  • Deformation force for a corresponding deformation of the tubes, the shirt or the spacer elements This allows a heat-related relative movement between the tube bundle and shirt, in which the distance between the shirt and the outermost layer of pipe changes and thus the said gap varies in volume.
  • elastic is understood as meaning both a linear elasticity and a non-linear elasticity (eg rubber elasticity).
  • Elasticity is understood in particular to mean an elasticity which is also at temperatures of -196 ° C. to 100 ° C., especially -165 to 65 ° C is present. The elastic element is thus elastic, in particular at these temperatures, and can perform the above-described reversible deformation.
  • the spring constant of the at least one elastic member is preferably less than 80%, preferably less than 50%, preferably less than 10%, or more preferably less than 1%, as the spring constant of the tubes, spacers, or shirt.
  • the at least one elastic element may be positively, positively and / or materially connected to the shirt. Furthermore, the at least one elastic element, via a spacer element, which is arranged between the outermost layer of pipes and the adjacent pipe layer, be fixed to the tube bundle, in particular form-fitting, non-positively and / or materially. Thus, e.g. the at least one elastic element be welded to the shirt and the spacer element. In principle, it is possible for the at least one elastic element to be either slidably connected to the shirt or to the spacer only, i.e., to abut against these components, allowing for further decoupling of the tube bundle from the surrounding shirt. Preferably, the distance between the outer tube layer and the inside of the shirt (i.e., the thickness of the gap) is in a range of 1 mm to 10 mm.
  • the at least one elastic element is designed to extend longitudinally (ie has a greater extent along a direction of longitudinal extension than perpendicular to it), wherein it is between two
  • the elastic element as a screw, leaf, or
  • Disc spring or be designed as another spring element or such
  • the elastic element may be spherical or cylindrical, e.g. in the form of a solid or hollow body.
  • the at least one elastic element has two limbs connected to one another via a base, each having an end region, wherein those end regions rest against the inside of the shirt.
  • the legs diverging from the base in the direction of the shirt apart and in particular enclose an angle of 30 ° to 50 °, preferably 40 °, wherein that angle increases with elastic deformation of the elastic element, which reduces the expansion of the elastic element normal to the shirt.
  • the at least one elastic element is fixed via the base to that at least one spacer element, in particular via a
  • connection wherein a connection with the shirt can be done by means of clamping.
  • the legs are partially out of the outermost layer of pipe out, wherein those portions of the legs form the protruding from the pipe layer region of the elastic element.
  • the legs can be integrally formed on the base together.
  • the end regions are preferably convexly curved toward the shirt, so that they each form a convexly curved contact surface for the shirt.
  • Both legs of the elastic element may in turn be formed longitudinally along the above-defined longitudinal extension direction in order to suppress a bypass flow.
  • the at least one elastic element comprises a metal and / or a plastic
  • the at least one elastic element comprises a stainless steel, eg according to the standard EN 10020, in particular one Stainless steel spring steel of material number 1.4310, and / or PTFE (polytetrafluoroethylene), eg Teflon, on.
  • the heat exchanger has a plurality of elastic elements, which are each arranged in sections between adjacent pipe sections of the outermost layer of pipes, that are integrated into the outermost layer of pipes, wherein the respective elastic element in the radial direction of the tube bundle from the outermost layer of pipe standing out area Plant on the tube bundle facing the inside of the shirt of the heat exchanger, wherein that area alternatively or additionally also for connecting the respective elastic
  • Elementes can be formed with the shirt.
  • the individual elastic elements can in turn be designed as described above.
  • elastic elements according to the invention arranged side by side. Furthermore, a plurality of elastic elements according to the invention are preferably arranged one above the other along the longitudinal axis of the heat exchanger, so that the elastic elements are distributed in particular substantially uniformly over the outermost layer of pipes.
  • the heat exchanger according to the invention is preferably used for carrying out an indirect heat exchange between a refrigerant flow as a first fluid and a hydrocarbon-containing stream as a second fluid, wherein in particular the hydrocarbon-containing stream is formed by natural gas.
  • Fig. 1 is a partial sectional view of an inventive
  • FIG. 2 is a partially sectioned perspective view of a wound heat exchanger with elastic elements according to the invention.
  • Fig. 3 shows a cross section of an embodiment of an elastic element according to the invention.
  • FIG. 1 shows, in connection with FIG. 2, an inventive device
  • the heat exchanger 1 is designed for indirect heat transfer between a first and a second fluid and has a jacket 10 which has a
  • Mantle space M for receiving the first fluid surrounds, which can be introduced via an inlet port 101 on the jacket 10 in the shell space M and via a corresponding outlet port 102 on the shell 10 again from the shell space M is removable.
  • the jacket 10 extends along a longitudinal axis L which, relative to a conditionally arranged state of the heat exchanger 1, extends along the vertical.
  • a tube bundle 2 is further arranged with a plurality of tubes 20 for receiving the second fluid.
  • the tubes 20 in several tube layers 200, 201 helically wound around a core tube 21 (the
  • Fig. 1 For clarity, only the outermost layer of tubes 200 and the underlying tube layer 201 are shown in Fig. 1), wherein the core tube 21 also extends along the longitudinal axis L and is arranged concentrically in the shell space M.
  • a plurality of tubes 20 are each combined in a tube plate 104, wherein the second fluid can be introduced via inlet stub 103 on the jacket 10 into those tubes 20 and can be withdrawn from the tubes 20 via outlet stub 105.
  • heat can be transferred indirectly between the two fluids, which are preferably conducted in countercurrent through the heat exchanger 1.
  • the jacket 10 and the core tube 21 are at least partially cylindrical, so that the longitudinal axis L forms a cylinder axis of the shell 10 and concentric core core 21 extending therein.
  • a shirt 3 is further arranged, which surrounds the tube bundle 2, so that between the tube bundle 2 and that shirt 3 a tube bundle 2 surrounding
  • Interspace 4 is formed.
  • the shirt 3 serves a bypass flow of the in Mantle space M guided first fluid, with which the tube bundle 2 is acted on the tube bundle 2 over as possible to suppress.
  • the first fluid is thus guided in the jacket space M in the region of the jacket space M surrounded by the shirt 3.
  • the individual pipe layers 200, 201 (in particular with horizontal support of the tube bundle 2) extend along the longitudinal axis L extended spacer elements 61, 6 to each other or on the core tube 21, wherein in each case a plurality of spacer elements 61, 6 in the radial direction R of the tube bundle. 2 are arranged one above the other.
  • Elements 5 are provided (in FIG. 2, three such elements 5 are shown by way of example), which are respectively integrated into the outermost layer of pipes 200, wherein the elastic elements 5 are preferably distributed substantially uniformly over the first layer of pipes 200.
  • the elastic elements 5 are each arranged with a first region 50a between tube sections 200 ', 200 "of the outermost tube layer 200 adjacent to the longitudinal axis L, wherein in each case a second region 50b of the respective elastic element 5 which abuts against the tube bundle 2 facing inside of the shirt 3 (or for connection to the shirt 3), in the radial direction R of the tube bundle 2 and the core tube 21 from the outermost layer of tubes 200 in the direction of the shirt 3 is out.
  • the elastic elements 5 are in each case preferably fixed to an outermost spacer element 61 in the radial direction R, in particular via a
  • the outermost ply layer 200 has a distance D (relative to a non-operating state) to the inside of the shirt 3 along the radial direction R, which is in particular in a range of 2 mm to 10 mm and the usually occurring heat-induced movements of the shirt 3 and the tube bundle 2 against each other during operation of the heat exchanger 1 allowed.
  • the arrangement of the elastic members 5 between the inside of the shirt 3 and the respective outermost spacer 61 allows sufficient
  • FIG. 3 shows a further embodiment of an elastic element 5 'according to the invention, e.g. instead of the elastic element 5 in a heat exchanger 1 according to Figure 2 can be used.
  • the elastic element 5 ' has two limbs 52, 53 integrally formed with one another via a curved or rounded base 51, each having an end region 52a, 53a, wherein those end regions 52a, 53a each have a convex contact surface for engagement with the inside 3a of the shirt 3.
  • the legs 52, 53 extend apart from the base 51, by which they are secured to the spacer layer 61 (e.g., by a welded joint or clamp between shirt 3 and spacer 61), towards the shirt 3.
  • the spacer layer 61 e.g., by a welded joint or clamp between shirt 3 and spacer 61
  • the legs 51, 52 may have an angle W of e.g. 40 °.
  • the thickness of the legs 52, 53 may be between 0.3 mm and 0.5 mm, in particular 0.4 mm.
  • the base 51 of the elastic element 5 ' is thus between adjacent ones
  • the elastic element 5 ' may have a height H in the radial direction R of the tube bundle 2 of e.g. 20 mm to 35 mm, preferably 28 mm.

Landscapes

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

Abstract

L'invention concerne un échangeur de chaleur (1) servant au transfert indirect de chaleur entre un premier et un second fluide. Ledit échangeur de chaleur comporte une enveloppe (10) qui entoure un espace d'enveloppe (M) destiné à recevoir un premier fluide et un faisceau de tubes (2) qui est disposé dans l'espace d'enveloppe (M) et qui comporte une pluralité de tubes (20) destinés à recevoir le second fluide. Les tubes (20) sont disposés en une pluralité de couches de tubes (200, 201, 202) et dans une chemise (3) disposée dans l'espace d'enveloppe (M) et entourant, dans la direction radiale (R) du faisceau de tubes (2), une couche de tubes extérieure (200) du faisceau de tubes (2) de sorte qu'un espace intermédiaire (4) entourant le faisceau de tubes (2) est ménagé entre le faisceau de tubes (2) et cette chemise (3). Selon l'invention, au moins un élément élastique (5, 5') comportant une première zone (50a) est disposée entre des sections de tuyaux adjacentes (200, 200'') dans la couche de tubes extérieure (200). L'au moins un élément élastique (5, 5') comporte une seconde zone (50b) qui dépasse de la couche de tubes extérieure (200) et qui est configurée pour venir s'appuyer sur un côté intérieur (3a) de la chemise (3) dirigé vers le faisceau de tubes (2) ou pour relier l'au moins un élément élastique (5, 5') à la chemise (3).
EP14739358.1A 2013-07-16 2014-07-10 Échangeur de chaleur muni d'un élément élastique Withdrawn EP3022510A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP14739358.1A EP3022510A1 (fr) 2013-07-16 2014-07-10 Échangeur de chaleur muni d'un élément élastique

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
EP13003569 2013-07-16
EP14739358.1A EP3022510A1 (fr) 2013-07-16 2014-07-10 Échangeur de chaleur muni d'un élément élastique
PCT/EP2014/001890 WO2015007375A1 (fr) 2013-07-16 2014-07-10 Échangeur de chaleur muni d'un élément élastique

Publications (1)

Publication Number Publication Date
EP3022510A1 true EP3022510A1 (fr) 2016-05-25

Family

ID=48795389

Family Applications (1)

Application Number Title Priority Date Filing Date
EP14739358.1A Withdrawn EP3022510A1 (fr) 2013-07-16 2014-07-10 Échangeur de chaleur muni d'un élément élastique

Country Status (5)

Country Link
US (1) US9874410B2 (fr)
EP (1) EP3022510A1 (fr)
CN (1) CN105518410A (fr)
RU (1) RU2016104903A (fr)
WO (1) WO2015007375A1 (fr)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3171116A1 (fr) * 2015-11-21 2017-05-24 Linde Aktiengesellschaft Échangeur de chaleur enroulé doté de turbulateurs
US10823508B2 (en) 2016-04-14 2020-11-03 Linde Aktiengesellschaft Helically coiled heat exchanger
DE102016005838A1 (de) * 2016-05-12 2017-11-16 Linde Aktiengesellschaft Gewickelter Wärmeübertrager mit Einbauten zwischen Hemd und letzter Rohrlage
WO2017220209A1 (fr) * 2016-06-21 2017-12-28 Linde Aktiengesellschaft Échangeur de chaleur spiralé muni d'une couche de tubes factice entre le tube central et la couche de tubes la plus à l'intérieur
EP3290849A1 (fr) * 2016-09-01 2018-03-07 Linde Aktiengesellschaft Échangeur thermique et procede de fabrication d'au moins un tube d'echangeur thermique
EP3428563A1 (fr) * 2017-07-10 2019-01-16 Linde Aktiengesellschaft Soutirage/injection de gaz destiné à influencer la migration radiale de liquide
CN109253634A (zh) * 2017-07-13 2019-01-22 大连东方亿鹏设备制造有限公司 一种缠绕管式换热器
CN110947195A (zh) * 2019-12-30 2020-04-03 无锡市志成生化工程装备有限公司 一种多夹套蒸发器
CN114459262B (zh) * 2022-02-21 2023-08-22 江阴金童石化装备有限公司 一种单股流绕管式换热器

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SU533420A1 (ru) * 1975-07-30 1976-10-30 Предприятие П/Я М-5096 Устройство дл намотки с нат жением,преимущественно труб
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Also Published As

Publication number Publication date
CN105518410A (zh) 2016-04-20
US9874410B2 (en) 2018-01-23
RU2016104903A (ru) 2017-08-21
RU2016104903A3 (fr) 2018-05-15
WO2015007375A1 (fr) 2015-01-22
US20160370130A1 (en) 2016-12-22

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