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EP3211357B1 - Faisceau tubulaire, échangeur thermique tubulaire et son procédé de fabrication - Google Patents

Faisceau tubulaire, échangeur thermique tubulaire et son procédé de fabrication Download PDF

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Publication number
EP3211357B1
EP3211357B1 EP17156946.0A EP17156946A EP3211357B1 EP 3211357 B1 EP3211357 B1 EP 3211357B1 EP 17156946 A EP17156946 A EP 17156946A EP 3211357 B1 EP3211357 B1 EP 3211357B1
Authority
EP
European Patent Office
Prior art keywords
edge
tube bundle
tubes
ring
web
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.)
Active
Application number
EP17156946.0A
Other languages
German (de)
English (en)
Other versions
EP3211357A1 (fr
Inventor
Dr. Armin Isselhorst
Linh Duong
Manfred Haase
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.)
ArianeGroup GmbH
Original Assignee
ArianeGroup 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 ArianeGroup GmbH filed Critical ArianeGroup GmbH
Publication of EP3211357A1 publication Critical patent/EP3211357A1/fr
Application granted granted Critical
Publication of EP3211357B1 publication Critical patent/EP3211357B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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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
    • F28D7/16—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 in parallel spaced relation
    • 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
    • F28F9/0131—Auxiliary supports for elements for tubes or tube-assemblies formed by plates
    • 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
    • F28F9/24—Arrangements for promoting turbulent flow of heat-exchange media, e.g. by plates
    • 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
    • F28D2021/0021—Other heat exchangers for particular applications; Heat exchange systems not otherwise provided for for aircrafts or cosmonautics
    • 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
    • F28F9/22—Arrangements for directing heat-exchange media into successive compartments, e.g. arrangements of guide plates
    • F28F2009/222—Particular guide plates, baffles or deflectors, e.g. having particular orientation relative to an elongated casing or conduit
    • F28F2009/226—Transversal partitions

Definitions

  • the present invention relates to a tube bundle for a tube bundle heat exchanger, a method for producing a tube bundle and a tube bundle heat exchanger.
  • Tube bundle heat exchangers are used to transfer heat between a warmer and a colder fluid, a first of which is passed through a tube bundle with a plurality of tubes, while the second fluid (which is also referred to in this document as Umströmungsfluid) flows around the plurality of tubes.
  • These tubes are arranged inside an outer tube and at least partially made of a material with high thermal conductivity.
  • one or more deflecting elements such as, for example, circular disks, helically arranged baffles or grids, can be arranged in the outer pipe, which serve to fluidize the second fluid when the plurality of pipes flows around.
  • a shell and tube heat exchanger according to the preamble of claim 1 is in EP 2 887 001 A1 disclosed.
  • the production of such heat exchangers is often expensive.
  • the tubes often need to be threaded either into individual holes between turning bars (e.g., in a grid), or the respective bars must be joined (e.g., after arranging bars and tubes) to each other and / or to a frame member (e.g., welded).
  • the fixing of the tubes in an outer tube particularly in heat exchangers intended to withstand loads (e.g., shocks) in use, includes attachment steps such as a plurality of welds. This is on the one hand consuming, on the other hand, such welds are susceptible to fractures, especially after prolonged periods of use.
  • the present invention has the object to provide a technique that allows a simplified production of tube bundle heat exchangers or particularly solid tube bundles.
  • the object is achieved by a tube bundle according to claim 1, by a tube bundle heat exchanger according to claim 8 and by a method for producing a tube bundle according to claim 9.
  • An inventive tube bundle for a tube bundle heat exchanger comprises a plurality of tubes and at least one web disc.
  • the at least one web disk has a ring-like edge encircling the plurality of pipes and a plurality of webs extending substantially parallel to one another; Between each adjacent webs are each formed gaps, and through the column through each extend a plurality of tubes. At their ends, the webs go continuously (in particular sweat-free) in the ring-like edge over.
  • the webs are thus not attached to the ring-like edge, own components, but webs and edge together form the web disk as an integral, monolithic component.
  • a tube bundle heat exchanger according to the invention comprises a tube bundle according to the invention according to claim 1.
  • a method according to the invention serves to produce a tube bundle according to one of the embodiments disclosed in this document. It comprises producing at least one of the web disks comprising milling out the gaps from a solid material and / or using an additive manufacturing method (eg laser deposition welding, selective laser melting, selective laser sintering, electron beam melting and / or a metal powder application method). includes.
  • an additive manufacturing method eg laser deposition welding, selective laser melting, selective laser sintering, electron beam melting and / or a metal powder application method.
  • a tube bundle according to the invention or a tube bundle heat exchanger according to the invention has a high durability.
  • the at least one web disk can be or serve to stabilize the pipes and / or as a deflecting element for a circulating fluid flowing around the pipes.
  • the plurality of tubes of the tube bundle comprises at least 100 or even at least 1000 tubes, which preferably extend straight and parallel to one another in at least one section. With such a number of pipes, large quantities of liquid can be warmed or cooled.
  • the annular edge of the at least one web disk is designed substantially as a circular cylinder. Due to its outer contour formed as a cylinder jacket surface, such an edge fits well into a corresponding outer tube and can be bonded to it in a particularly durable manner (for example, welded and / or soldered) along the cylinder jacket surface.
  • a height of such a circularly cylindrical edge of a web disk (which runs in the longitudinal direction of the tubes passed through) preferably depends on the overall size of an associated tube bundle.
  • the height is preferably 1.5 to a maximum of 2 times the outer diameter of the individual tubes of the tube bundle.
  • a tube bundle according to the invention comprises tubes each having an outer diameter in the range from 4 mm to 10 mm and / or the height of the circularly cylindrical edge of the web plate is preferably in a range from 6 mm to 15 mm.
  • the gaps are bounded by respectively substantially flat surfaces of the respective webs.
  • a web disk is particularly easy to manufacture by milling.
  • the tubes extending through the gaps are respectively in contact with these flat surfaces.
  • the flat surfaces are preferably in a plane which is parallel to the continuous tubes (or their longitudinal direction) (which thus has a directional vector in the longitudinal direction of the tubes). This allows a tight arrangement of the tubes and thus a large number of such tubes in the tube bundle heat exchanger.
  • the gaps each extend from a first portion of the annular edge to a second portion of the annular edge.
  • Adjacent webs of the at least one web disk preferably each have the same distance from each other.
  • the tubes of the plurality each have an outer diameter that is substantially equal to a distance of adjacent lands (that is, equal to a gap width of the gaps);
  • an outer diameter of a pipe cross-section at a position in the gap is referred to as outer diameter, which is therefore measured in particular orthogonally to the longitudinal direction of the pipe.
  • the tubes are thus preferably in cross section on two opposite sides of corresponding webs. In this way, the tubes are kept stable, and the webs acting as impact elements swirl around the tubes flowing around the flow around both sides, which improves a temperature exchange.
  • the tubes of the plurality of tubes preferably each have substantially the same outer diameter remaining constant over a tube length.
  • the tubes run parallel to one another in at least one section and are in each case by two or more (seen in the tube longitudinal direction) successively arranged web discs (or in each case by a gap therein) out.
  • the web discs are formed substantially identical.
  • the gap longitudinal directions of the plurality of web disks are preferably each orthogonal to the longitudinal direction of the tubes.
  • Particularly preferred embodiments are those in which the gaps of successive web disks are each rotated by 90 ° or in each case by 60 ° relative to each other (or angled) (wherein in each case the smaller angle between the mutually rotated / angled columns is measured).
  • a tube bundle according to the invention comprises a plurality of outer tube segments, which are arranged one behind the other as viewed in the longitudinal direction of the tubes and at least partially surround the plurality of tubes. At least two of the plurality of outer tube segments abut each other at one edge. At one of the plurality of tubes of the tube bundle facing side (which is referred to in this document as the inside) of the outer tube segments extends along the edge of the annular edge of a web disc (or the at least one web disc) of the tube bundle.
  • a ring-like edge of a respective ridge disc runs along each edge along which adjacent outer tube segments abut one another
  • the annular edge of the web disc can (or the annular edges of the plurality of web discs can) thus the edge (s) at which the outer tube segments abut each other, seal.
  • the at least two outer tube segments along the edge in each case welded to the ring-like edge (or its periphery) of the web disk and / or soldered.
  • the annular edge thus serves as a connecting element for the two outer tube segments.
  • a ring-like edge with a periphery designed essentially as a circular cylinder jacket surface is advantageous.
  • a surface can be welded particularly well to suitably shaped outer tube segments, whose inner surfaces are preferably designed correspondingly substantially as circular cylinder segments.
  • the arrangement of the annular edge on the tubes of the tube bundle facing side of the outer tube segments ie on an inner surface of an outer tube preferably formed by the outer tube segments) allows in particular a welding, each with a single weld.
  • the adjoining outer tube segments along the edge form a groove into which at least a portion of the annular edge of the web disc is lowered.
  • This allows a particularly solid connection of the ring-like edge with the outer tube segments, also - in particular in a successive construction of the outer tube by attaching the outer tube segments in succession - facilitates an accurate positioning of outer tube segments relative to the web plate along the edge.
  • the portion of the annular edge may be positively fitted into the groove. This allows a particularly good tightness of the outer tube at the edge.
  • the outer tube segments preferably form at least part of an outer casing through which a bypass fluid may be passed to permit temperature exchange with a fluid passing through the plurality of tubes; Depending on the use, the circulating fluid may be colder or warmer than the fluid conducted through the tubes of the tube bundle.
  • the outer tube segments composed preferably form an outer tube which completely encloses the tube bundle.
  • an inventive tube bundle heat exchanger is designed as a pressure vessel.
  • a shell-and-tube heat exchanger is thus suitable for use in which a fluid (e.g., a liquefied gas) under pressure from an external environment is involved in a temperature exchange.
  • a shell and tube heat exchanger according to the invention may in particular be integrated into a supply system for an engine (for example an aircraft or rocket engine) with fuel comprising a tank and a delivery line system from the tank (and preferably to the engine), the delivery line system being adapted to supply the fuel as circulating fluid to pass through the tube bundle heat exchanger.
  • an engine for example an aircraft or rocket engine
  • fuel comprising a tank and a delivery line system from the tank (and preferably to the engine)
  • the delivery line system being adapted to supply the fuel as circulating fluid to pass through the tube bundle heat exchanger.
  • FIG. 1 illustrates a construction of a tube bundle 10 according to the invention for a tube bundle heat exchanger.
  • the tube bundle 10 comprises a web disc 12 and a plurality of tubes 11; for better recognizability of the arrangement, only three tubes 11 of the plurality of tubes are shown. It is understood that the majority of a complete tube bundle may comprise further analogously arranged tubes.
  • the web disk 12 has a ring-like edge 13 surrounding the plurality of pipes and a plurality of webs 14 running essentially parallel to one another, between which gaps 15 are formed, through which a plurality of the pipes 11 run.
  • the gap longitudinal direction S of the column is orthogonal to the tube longitudinal direction L; in the figures in this document, the directions are each marked with a double arrow, because the respective signs are irrelevant or are not determined.
  • the gaps each extend from a first portion (belonging to the gap) of the ring-like edge to a second portion (belonging to the gap) of the ring-like edge 13, ie in particular run continuously between these two respective portions of the edge; for clarity, the first portion 23a and the second portion 23b, between which the (exemplarily selected) gap 15 'extends, are indicated in the figure.
  • the webs 14 are continuous at their ends in the ring-like edge, so in particular are not attached to the edge, but the web plate is an integral, monolithic component, whose manufacture may have included milling out the gap 15 from a solid material; Alternatively, the web disk by means of generative manufacturing process (or 3D printing) have been produced. Thus, the web disk has a high durability, and since the webs are not welded to the ring, the production of the web disk is simplified.
  • Adjacent webs 14 each have a distance d from each other.
  • the gaps 15 thus each have the same gap width (which is given by the distance d).
  • the annular edge 13 is formed substantially circular cylindrical; the cylinder height runs in (or parallel to) the longitudinal direction L of the tubes 11 (in the section shown).
  • the gaps 15 are respectively bounded by substantially flat surfaces of the respective webs 14; In the example shown, these surfaces have a web width extending in the pipe longitudinal direction, which corresponds to the height of the circular-cylindrical annular edge 13.
  • the outer surface (or periphery) of the circular cylindrical ring-like edge abuts the outside of the respective inner sides of outer ring segments 16a, 16b, 16c, of which the outer ring segments 16a, 16b in the longitudinal direction of the tubes (ie tube longitudinal direction) L are arranged one behind the other.
  • the annular edge runs along the edge 17, on which the outer ring segments 16a and 16b abut each other.
  • the outer segments 16a, 16b, 16c welded to the annular edge 13 of the web disc 12.
  • the tube bundle comprises one or more (in the FIG. 1 not shown) further web discs, which are arranged along the tubes 11 farther back and / or front than the web plate 12 shown and which are preferably constructed substantially identical to this.
  • a further web disk is arranged so that its cleavage direction relative to the splitting direction S of the web disk 12 is rotated (about a central axis through the center points of the web disks).
  • the web discs 12a, 12b, 12c are arranged one behind the other in the direction of view, and their respective cleavage directions S a , S b , S c are rotated or angled against each other: As is indicated at the edge of the figure as an explanation, the cleavages S a and S b rotated by an angle ⁇ against each other (or angled) and the cleavage directions S b and S c by an angle ⁇ ; In each case, the smaller angle between intersecting webs in the projection is measured. In the example shown, ⁇ and ⁇ are each 60 °. As an angle between the cleavage directions S a and S c thus results in an angle of 60 °.
  • a tube bundle according to the invention comprises 1000 to 1300 tubes, which can extend in total through respective gaps of 8 to 12 against each other (around a central central axis) twisted disc discs.
  • other dimensions and / or numbers are also within the scope of the present invention.
  • FIG. 3 shows schematically in a cross section how a web disk 12 of a tube bundle according to the invention can be connected to abutting edge 17 against one another outer segments 16a, 16b: Along the edge 17, the outer segments 16a, 16b together form a groove 18, in which a part of ring-like edge 13 of the web disc is sunk.
  • a depth of the groove of approximately 20-30% of the wall thickness of the adjoining outer segments 16a, 16b is advantageous; According to a particular embodiment, the wall thickness is 1mm - 3mm.
  • the web plate can be easily positioned accurately along the edge, also allows the sinking into the groove a solid connection and good sealing of the outer tube at the edge.
  • the annular edge 13 is welded in the groove (e.g., with a single weld).
  • the width h of the edge (that is, the cylinder height of the circular-cylindrical annular edge) in the example shown is smaller than the groove width; the groove thus has a fitting clearance 19 of a width a (greater than zero, preferably greater than a welding shrinkage, according to a particular embodiment 1mm ⁇ a ⁇ 5mm).
  • the width h of the annular edge 13 of the web disk is also greater in the example shown than a web width b (which may be substantially equal to the outer diameter of the tubes, for example);
  • a good attachment of the annular edge to the outer tube segments can be ensured at the same time narrower webs, in turn, due to a resulting better Flushing the pipes may be advantageous.
  • 1.5d ⁇ h ⁇ 2d where d denotes the ridge spacing, which preferably corresponds to the outer diameter of the tubes).

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

Claims (9)

  1. Faisceau tubulaire (10), destiné à un échangeur thermique à faisceau tubulaire, lequel comprend une pluralité de tubes (11), ainsi qu'au moins un disque nervuré (12, 12a, 12b, 12c),
    l'au moins un disque nervuré comportant un bord (13) annulaire entourant la pluralité de tubes et plusieurs nervures (14) s'écoulant sensiblement à la parallèle les unes des autres, entre lesquelles sont respectivement conçues des fentes (15, 15', 15a, 15b, 15c) à travers lesquelles s'écoulent plusieurs des tubes (11), les nervures passant en continu sur leurs extrémités dans le bord annulaire,
    le faisceau tubulaire comprenant une pluralité de segments extérieurs de tubes (16a, 16b, 16c), qui sont placés les uns derrière les autres dans la direction longitudinale des tubes et qui encadrent au moins partiellement la pluralité de tubes (11),
    caractérisé en ce qu'au moins deux parmi la pluralité de segments extérieurs de tubes s'aboutent les uns aux autres sur une arête (17) le long de laquelle s'écoule sur la face intérieure le bord (13) annulaire d'un disque nervuré (12, 12a, 12b, 12c).
  2. Faisceau tubulaire selon la revendication 1, le bord (13) annulaire étant conçu sensiblement sous forme de cylindre circulaire.
  3. Faisceau tubulaire selon l'une quelconque des revendications précédentes, des fentes (15, 15', 15a, 15b, 15c) étant délimitées par respectivement des surfaces sensiblement plates des nervures (14) respectives.
  4. Faisceau tubulaire selon l'une quelconque des revendications précédentes, les fentes (15') s'étendant respectivement d'un premier segment (23a) du bord annulaire jusqu'à un deuxième segment (23b) du bord (13) annulaire,
    et/ou les tubes ayant respectivement un diamètre extérieur (d) qui est sensiblement égal à un écart entre des nervures (14) voisines de l'au moins un disque nervuré.
  5. Faisceau tubulaire selon l'une quelconque des revendications précédentes, au moins dans un tronçon, les tubes (11) s'écoulant à la parallèle les uns des autres et étant guidés respectivement par deux disques nervurés (12a, 12b, 12c) placés les uns derrière les autres ou plus, dont la direction longitudinale des fentes (Sa, Sb, Sc) est décalée angulairement l'une par rapport à l'autre.
  6. Faisceau tubulaire selon l'une quelconque des revendications précédentes, chacun des aux moins deux segments extérieurs de tubes (16a, 16b) étant soudé et/ou brasé sur le bord (13) annulaire.
  7. Faisceau tubulaire selon l'une quelconque des revendications précédentes, les segments extérieurs de tubes (16a, 16b) aboutés formant le long de l'arête une rainure (18) à l'intérieur de laquelle au moins un segment du bord (13) annulaire du disque nervuré (12, 12a, 12b, 12c) est abaissé.
  8. Échangeur thermique à faisceau tubulaire, pourvu d'un faisceau tubulaire (10) selon l'une quelconque des revendications précédentes.
  9. Procédé, destiné à produire un faisceau tubulaire (10) selon l'une quelconque des revendications 1 à 7, qui comprend une fabrication d'au moins l'un des disques nervurés (12, 12a, 12b, 12c) par fraisage des fentes (15, 15', 15a, 15b, 15c) dans une matière pleine ou à l'aide d'un procédé de fabrication additionnel.
EP17156946.0A 2016-02-24 2017-02-20 Faisceau tubulaire, échangeur thermique tubulaire et son procédé de fabrication Active EP3211357B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102016103226.3A DE102016103226A1 (de) 2016-02-24 2016-02-24 Rohrbündel, Rohrbündelwärmetauscher und Verfahren zu deren Herstellung

Publications (2)

Publication Number Publication Date
EP3211357A1 EP3211357A1 (fr) 2017-08-30
EP3211357B1 true EP3211357B1 (fr) 2019-06-05

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
EP17156946.0A Active EP3211357B1 (fr) 2016-02-24 2017-02-20 Faisceau tubulaire, échangeur thermique tubulaire et son procédé de fabrication

Country Status (2)

Country Link
EP (1) EP3211357B1 (fr)
DE (1) DE102016103226A1 (fr)

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1229743A (fr) * 1969-01-23 1971-04-28
CH674941A5 (fr) * 1988-03-08 1990-08-15 Doltron Ag
CN1140764C (zh) * 2001-03-24 2004-03-03 华南理工大学 缩放管全逆流双壳程轴流式换热器及其换热方法
WO2008045243A1 (fr) * 2006-10-06 2008-04-17 Exxonmobil Research And Engineering Company Dispositif à faisceau de tubes à vibration réduite à parois rainurées
DE102011054984A1 (de) * 2011-11-02 2013-05-02 Wilhelm Deller GmbH & Co. KG Stütze für ein Rohrbündel und damit versehener Wärmeübertrager
EP2887001A1 (fr) * 2013-12-18 2015-06-24 Casale Sa Unité d'échange de chaleur à tubes pour parties internes d'échangeurs de chaleur ou de réacteurs
EP3029407A1 (fr) * 2014-12-02 2016-06-08 Borgwarner Emissions Systems Spain, S.L.U. Déflecteur rainuré pour un échangeur de chaleur

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
None *

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Publication number Publication date
DE102016103226A1 (de) 2017-08-24
EP3211357A1 (fr) 2017-08-30

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