EP2818821B1 - Coiled heat exchanger with core tube feed - Google Patents

Coiled heat exchanger with core tube feed Download PDF

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Publication number
EP2818821B1
EP2818821B1 EP13003276.6A EP13003276A EP2818821B1 EP 2818821 B1 EP2818821 B1 EP 2818821B1 EP 13003276 A EP13003276 A EP 13003276A EP 2818821 B1 EP2818821 B1 EP 2818821B1
Authority
EP
European Patent Office
Prior art keywords
heat exchanger
tube
core tube
liquid
distributor container
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
EP13003276.6A
Other languages
German (de)
French (fr)
Other versions
EP2818821A1 (en
Inventor
Markus Hammerdinger
Christiane Dr. Kerber
Helmut Reithmeier
Jürgen Spreemann
Manfred Steinbauer
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
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Filing date
Publication date
Application filed by Linde GmbH filed Critical Linde GmbH
Priority to ES13003276.6T priority Critical patent/ES2568053T3/en
Priority to EP13003276.6A priority patent/EP2818821B1/en
Priority to PL13003276T priority patent/PL2818821T3/en
Priority to US14/315,875 priority patent/US10113802B2/en
Priority to CN201410293621.3A priority patent/CN104251630B/en
Publication of EP2818821A1 publication Critical patent/EP2818821A1/en
Application granted granted Critical
Publication of EP2818821B1 publication Critical patent/EP2818821B1/en
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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
    • F28D1/00—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators
    • F28D1/06—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with the heat-exchange conduits forming part of, or being attached to, the tank containing the body of fluid
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25J—LIQUEFACTION, SOLIDIFICATION OR SEPARATION OF GASES OR GASEOUS OR LIQUEFIED GASEOUS MIXTURES BY PRESSURE AND COLD TREATMENT OR BY BRINGING THEM INTO THE SUPERCRITICAL STATE
    • F25J5/00—Arrangements of cold exchangers or cold accumulators in separation or liquefaction plants
    • F25J5/002—Arrangements of cold exchangers or cold accumulators in separation or liquefaction plants for continuously recuperating cold, i.e. in a so-called recuperative heat exchanger
    • 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
    • F28D15/00—Heat-exchange apparatus with the intermediate heat-transfer medium in closed tubes passing into or through the conduit walls ; Heat-exchange apparatus employing intermediate heat-transfer medium or bodies
    • 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
    • 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
    • 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
    • F28F9/026—Header boxes; End plates with static flow control means, e.g. with means for uniformly distributing heat exchange media into conduits
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25J—LIQUEFACTION, SOLIDIFICATION OR SEPARATION OF GASES OR GASEOUS OR LIQUEFIED GASEOUS MIXTURES BY PRESSURE AND COLD TREATMENT OR BY BRINGING THEM INTO THE SUPERCRITICAL STATE
    • F25J2290/00—Other details not covered by groups F25J2200/00 - F25J2280/00
    • F25J2290/32—Details on header or distribution passages of heat exchangers, e.g. of reboiler-condenser or plate heat exchangers
    • 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
    • F28D2021/0033—Other heat exchangers for particular applications; Heat exchange systems not otherwise provided for for cryogenic applications
    • 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
    • F28F2265/18—Safety or protection arrangements; Arrangements for preventing malfunction for removing contaminants, e.g. for degassing

Definitions

  • the invention relates to a heat exchanger according to claim 1.
  • Such a heat exchanger has a jacket extending along a longitudinal axis, which surrounds a jacket space of the heat exchanger, and a tube bundle arranged in the jacket space, with a plurality of tubes which are wound around a core tube extended along the longitudinal axis (so-called coiled heat exchanger), as well further comprising at least one pre-distributor container arranged in the jacket space for receiving and degassing a liquid-gas mixture which is designed to charge a distribution means with the degassed in the at least one Vorverteiler employer liquid, wherein the distribution means is adapted to the tube bundle with that liquid apply.
  • the liquid added from above onto the tube bundle evaporates in the jacket space on the way down towards the bottom of the jacket space, preferably completely.
  • a heat exchanger of the type mentioned is for example from the DE102004040974A1 known.
  • the liquid to be distributed is given as a two-phase mixture in the shell space, then the area must be provided in the shell space for an effective separation of the two phases. This can, usually triggered by high gas flow rates, lead to the need for an undesirable widening of the cladding diameter or to an increase in the apparatus.
  • the present invention seeks to provide a heat exchanger in which can be dispensed with the aforementioned expansion or increase.
  • the jacket at the head of the heat exchanger has an in particular aligned with the longitudinal axis inlet, in particular in the form of an inlet nozzle, which is in fluid communication with the core tube, and that the core tube has at least one opening into the at least one pre-distributor tank side opening in that the liquid-gas mixture can be fed into the at least one pre-distributor tank via the inlet, the core tube and that at least one lateral opening of the core tube.
  • the two-phase flow is fed centrally from above into the core tube on the shell side, wherein the shell-side inlet flow is supplied to the apparatus via the core tube and then flows laterally into the or the pre-distributor tank or boxes for the separation of gas and liquid, wherein this now also the inner surface or the interior of the core tube can be used to advantage. Due to the thus provided increased effective area for degassing the liquid to be distributed can advantageously account for a widening and / or increase of the heat exchanger.
  • the core tube is fixed with an end portion at a provided on the head of the shell, in particular perpendicular to the longitudinal axis extending tube plate, wherein preferably the jacket in the region of the head of the heat exchanger from a peripheral edge region of the tube plate, which is preferably welded to the jacket.
  • the inlet nozzle is fixed to an end portion on a side facing away from the core tube of the tube plate to the tube plate, in particular welded thereto.
  • the core tube has a cylindrical wall extending along the longitudinal axis, in which the at least one opening is arranged.
  • the at least one pre-distribution tank is from that wall in the radial direction of the core tube and preferably extends up to one of the wall or the core tube opposite the inside of the shell.
  • a side wall of the at least one Vorverteiler mattersers is preferably formed by the wall of the core tube, wherein in that side wall or the corresponding region of the wall of the core tube, the at least one of the Vorverteiler capableer associated opening is provided, via which the liquid-gas mixture in the Vorverteiler contemplater arrives.
  • the at least one pre-distribution container is pie-shaped.
  • a plurality of Vorverteiler cooperateer which each depart perpendicular to the longitudinal axis of the wall of the core tube and are preferably formed as described above.
  • Vorverteiler electern is in each case preferably a gap through which escaping from a Vorverteiler electer gas in the mantle space can flow down.
  • the tubes of the tube bundle are guided by these gaps past the Vorverteiler electern up into the head of the heat exchanger.
  • the tubes of the tube bundle are in this case combined at the upper end or head of the heat exchanger, in particular in tube plugs, which are passed through the gaps between the pre-distributor containers and are preferably fixed in the tube plate.
  • the at least one or more Vorverteiler thinker each have an upper edge over which the gas (or the gaseous phase) of the gas to be degassed liquid-gas mixture, which is in the respective Vorverteiler electer, can flow down in the jacket space, said Upper edge of the respective Vorverteiler mattersers is preferably arranged above an upper edge of the opening into the respective Vorverteiler variouser lateral opening of the core tube.
  • the at least one Vorverteiler employer separate gas and liquid, the liquid via at least one drain pipe, which goes off the bottom of the at least one Vorverteiler mattersers, in the underlying distribution means (also referred to as main distributor) runs.
  • the gas flows upwards, through a perforated plate arranged in the at least one pre-distributor tank for equalization and then further down over the said upper edge of the at least one pre-distributor tank.
  • the core tube is closed at the bottom below the at least one opening or below the existing openings through a bottom, so that the liquid-gas mixture can not flow down through the core tube.
  • that floor along the longitudinal axis at the height of the floors of the existing Vorverteiler employer is arranged.
  • the at least one pre-distributor container arranged in the jacket space or the plurality of pre-distributor containers are arranged in the head of the heat exchanger.
  • FIG. 1 shows in connection with FIG. 2 a heat exchanger 1 according to the invention, with a pressure-bearing, partially hollow cylindrical shell 20 which extends from a head 2 of the heat exchanger 1 or shell 20 along a longitudinal axis or cylinder axis L down, the - relative to a designated condition of the heat exchanger 1 - runs parallel to the vertical.
  • the jacket 20 surrounds a jacket space M of the heat exchanger 1, in which a tube bundle R is arranged, which is formed from a plurality of tubes 70, which are helically wound in several layers around a core tube 10, which is arranged concentrically to the jacket 20 in the shell space M. is and whose longitudinal axis coincides with the longitudinal axis L of the shell 20.
  • the tube bundle R serves to receive a fluid medium which is intended to enter into indirect heat exchange with a liquid F to be led in the jacket space M, which is fed from above onto the tube bundle R.
  • a distribution means 60 is arranged above the tube bundle R, which is designed to distribute that liquid F on a perpendicular to the longitudinal axis L or vertical cross-section of the jacket space M or abandon the tube bundle R.
  • the distribution medium 60 is supplied from one or more pre-distribution containers 50 with the liquid F resulting from the degassing and settling of a two-phase liquid-gas mixture F, which are carried out in one or more Vorverteiler inherent to the distribution medium 60.
  • the liquid-gas mixture is introduced into the heat exchanger 1 at the head 2 of the jacket 20 or the heat exchanger 1 in an inlet connection 30 which is aligned with the longitudinal axis L or the core tube 10, wherein the inlet connection 30 is provided by a tube plate provided on the head 2 40 protrudes and is fixed there with an end portion 31.
  • the tube plate 40 is connected via its circumferential edge region 41 with the jacket 20.
  • On a side facing away from the inlet pipe 30 of the tube plate 40 - namely in the shell space M - the wall W of the core tube 10 is fixed with an end portion 11 on the tube plate 40 and thus anchored with respect to the shell 20.
  • the core tube 10 or the interior I of the core tube 10 surrounded by the wall W is in fluid communication with the inlet connection 30 (via a corresponding opening in the tube plate 40), so that the liquid-gas mixture F 'introduced into the inlet connection 30 into the core tube 10 or whose interior I passes and flows down there.
  • the liquid-gas mixture F ' thus encounters an introduced into the interior I, perpendicular to the longitudinal axis L extending closure or bottom 12 of the core tube 10 and is passed through lateral openings 100 of the wall W of the core tube 10 in said Vorverteiler thinkinger 50.
  • the pre-distributor tank 50 each extend from the wall W of the core tube perpendicular to the longitudinal axis L, ie, in the radial direction of the core tube 10, to the opposite inner side 20a of the shell 20 of the heat exchanger 1.
  • the Vorverteiler matterser 50 are in accordance with FIG. 2 in a direction perpendicular to the longitudinal axis L extending cross-sectional plane pie slice, that is, circular sector shaped, each provided between two adjacent Vorverteiler electern 50 extending in the radial direction of the shell 20 gap 104 through the respective tubes 70 of the tube bundle R along the longitudinal axis L to the Vorverteiler inherentern 50 are guided past up into the head 2 of the heat exchanger 1.
  • a plurality of tubes 70 are combined at the ends of the tubes 70 to form a tube plait, wherein such tube plugs may be connected in the head 2 of the heat exchanger 1 via the said tube plate 40, each with an associated nozzle or laterally on the jacket 20 and the tube plate 40th provided tube plates with nozzles.
  • the provision of the tubes 70 in lateral tube plates has the disadvantage that the tubes 70 would have to be bent radially outward. This would mean a higher production cost and thus longer production times. In addition, a larger height would be required, which would lead to an increase in manufacturing costs.
  • the tubes 70 or tubular fuctions formed therefrom are preferably also flow-connected with nozzles provided on the jacket 20, so that fluid media introduced into the tube bundle R via the nozzles described above or withdrawn from the tube bundle R. can be.
  • the liquid-gas mixture F ' is dammed in the Vorverteiler electern 50, calms and degassed, the gaseous phase G upwards over an upper edge 53 of the bottom 52 of the respective Vorverteiler mattersers 50 outgoing side wall 51 of the respective Vorverteiler mattersers 50 in the shell space M through those gaps 104 can flow down.
  • At the bottom 52 of the respective Vorverteiler mattersers 50 are at one of the opening 100 of the respective Vorverteiler mattersers 50 opposite side of the relevant Vorverteiler mattersers 50 preferably two drain pipes 61 is provided, via which the degassed liquid F runs into the distribution means 60.
  • the upper edge 101 of the respective opening 100 of the wall W of the core tube 10 is arranged along the longitudinal axis L below the upper edge 53 of the associated Vorverteiler mattersers 50 and below a perforated plate 102 which extends in the respective Vorverteiler matterser 50 over the cross section and a plurality of Holes 103, so that the gaseous phase G can flow to equalize through the holes 103 of the respective perforated plate 102 before it exits upwardly from the respective Vorverteiler thoughtser 50.
  • liquid droplets F are entrained by the gas flow, they can fall to the respective perforated plate 102 and are in turn passed into the distribution means 60, via two drain pipes 62 of the respective perforated plate 102, each with an associated, from the bottom 52 of the respective outgoing distributor tank 50 outgoing drainage pipe 61 are aligned.
  • the right-hand pre-distributor tank 50 without a corresponding perforated plate 102 is shown in the plan view, so that the positions of the drainage pipes 61 on the bottom 52 of the pre-distributor tank 50 are visible.
  • the bottoms 52 of the individual Vorverteiler essenceer 50 extend at the level of the bottom 12 of the core tube 10 perpendicular to the longitudinal axis L.

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  • 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)
  • Feeding, Discharge, Calcimining, Fusing, And Gas-Generation Devices (AREA)

Description

Die Erfindung betrifft einen Wärmeübertrager gemäß Anspruch 1.The invention relates to a heat exchanger according to claim 1.

Ein derartiger Wärmeübertrager weist einen entlang einer Längsachse erstreckten Mantel auf, der einen Mantelraum des Wärmeübertragers umgibt, sowie ein im Mantelraum angeordnetes Rohrbündel, mit einer Mehrzahl an Rohren, die um ein entlang der Längsachse erstrecktes Kernrohr gewickelt sind (so genannter gewickelter Wärmetauscher), sowie ferner zumindest einen im Mantelraum angeordneten Vorverteilerbehälter zum Aufnehmen und Entgasen eines Flüssigkeit-Gas-Gemisches, der dazu ausgebildet ist, ein Verteilmittel mit der in dem mindestens einen Vorverteilerbehälter entgasten Flüssigkeit zu beschicken, wobei das Verteilmittel dazu ausgebildet ist, das Rohrbündel mit jener Flüssigkeit zu beaufschlagen. In gewickelten Wärmeaustauschern mit Fallfilmverdampfung, verdampft dabei die von oben auf das Rohrbündel gegebene Flüssigkeit im Mantelraum auf dem Weg nach unten in Richtung auf den Sumpf des Mantelraumes vorzugsweise vollständig.Such a heat exchanger has a jacket extending along a longitudinal axis, which surrounds a jacket space of the heat exchanger, and a tube bundle arranged in the jacket space, with a plurality of tubes which are wound around a core tube extended along the longitudinal axis (so-called coiled heat exchanger), as well further comprising at least one pre-distributor container arranged in the jacket space for receiving and degassing a liquid-gas mixture which is designed to charge a distribution means with the degassed in the at least one Vorverteilerbehälter liquid, wherein the distribution means is adapted to the tube bundle with that liquid apply. In wound heat exchangers with falling film evaporation, the liquid added from above onto the tube bundle evaporates in the jacket space on the way down towards the bottom of the jacket space, preferably completely.

Ein Wärmeübertrager der eingangs genannten Art ist z.B. aus der DE102004040974A1 bekannt.A heat exchanger of the type mentioned is for example from the DE102004040974A1 known.

Da die zu verteilende Flüssigkeit als zweiphasiges Gemisch in den Mantelraum gegeben wird, muss im Mantelraum dann die Fläche für eine effektive Trennung der beiden Phasen bereitgestellt werden. Dies kann, meist ausgelöst durch hohe Gasvolumenströme, zu der Notwendigkeit einer unerwünschten Aufweitung des Manteldurchmessers führen oder zu einer Erhöhung des Apparates.Since the liquid to be distributed is given as a two-phase mixture in the shell space, then the area must be provided in the shell space for an effective separation of the two phases. This can, usually triggered by high gas flow rates, lead to the need for an undesirable widening of the cladding diameter or to an increase in the apparatus.

Hiervon ausgehend liegt daher der vorliegenden Erfindung die Aufgabe zugrunde, einen Wärmetauscher zu schaffen, bei dem auf die vorgenannte Aufweitung bzw. Erhöhung verzichtet werden kann.Proceeding from this, therefore, the present invention seeks to provide a heat exchanger in which can be dispensed with the aforementioned expansion or increase.

Dieses Problem wird durch einen Wärmeübertrager mit den Merkmalen des Anspruchs 1 gelöst.This problem is solved by a heat exchanger with the features of claim 1.

Danach ist vorgesehen, dass der Mantel am Kopf des Wärmeübertragers einen insbesondere mit der Längsachse fluchtenden Einlass, insbesondere in Form eines Einlassstutzens, aufweist, der in Fluidverbindung mit dem Kernrohr steht, und dass das Kernrohr zumindest eine in den mindestens einen Vorverteilerbehälter mündende seitliche Öffnung aufweist, so dass das Flüssigkeit-Gas-Gemisch über den Einlass, das Kernrohr und jene mindestens eine seitliche Öffnung des Kernrohrs in den mindestens einen Vorverteilerbehälter einspeisbar ist.Thereafter, it is provided that the jacket at the head of the heat exchanger has an in particular aligned with the longitudinal axis inlet, in particular in the form of an inlet nozzle, which is in fluid communication with the core tube, and that the core tube has at least one opening into the at least one pre-distributor tank side opening in that the liquid-gas mixture can be fed into the at least one pre-distributor tank via the inlet, the core tube and that at least one lateral opening of the core tube.

Mit anderen Worten wird also erfindungsgemäß mantelseitig der zweiphasige Strom zentral von oben in das Kernrohr eingespeist, wobei der mantelseitige Eintrittsstrom über das Kernrohr dem Apparat zugeführt wird und dann seitlich in den oder die Vorverteilerbehälter bzw. -kästen zur Separation von Gas und Flüssigkeit strömt, wobei hierzu nun auch die Innenfläche bzw. der Innenraum des Kernrohres mit Vorteil genutzt werden kann. Aufgrund der solchermaßen bereitgestellten erhöhten effektiven Fläche zum Entgasen der zu verteilenden Flüssigkeit kann mit Vorteil eine Aufweitung und/oder Erhöhung des Wärmetauschers entfallen.In other words, according to the invention, the two-phase flow is fed centrally from above into the core tube on the shell side, wherein the shell-side inlet flow is supplied to the apparatus via the core tube and then flows laterally into the or the pre-distributor tank or boxes for the separation of gas and liquid, wherein this now also the inner surface or the interior of the core tube can be used to advantage. Due to the thus provided increased effective area for degassing the liquid to be distributed can advantageously account for a widening and / or increase of the heat exchanger.

Gemäß einer bevorzugten Ausgestaltung der Erfindung ist vorgesehen, dass das Kernrohr mit einem Endabschnitt an einer am Kopf des Mantels vorgesehenen, insbesondere senkrecht zur Längsachse erstreckten Rohrplatte festgelegt ist, wobei vorzugsweise der Mantel im Bereich des Kopfes des Wärmeübertragers von einem umlaufenden Randbereich der Rohrplatte abgeht, der vorzugsweise mit dem Mantel verschweißt ist.According to a preferred embodiment of the invention, it is provided that the core tube is fixed with an end portion at a provided on the head of the shell, in particular perpendicular to the longitudinal axis extending tube plate, wherein preferably the jacket in the region of the head of the heat exchanger from a peripheral edge region of the tube plate, which is preferably welded to the jacket.

Weiterhin ist bevorzugt vorgesehen, dass der Einlassstutzen mit einem Endabschnitt auf einer dem Kernrohr abgewandten Seite der Rohrplatte an der Rohrplatte festgelegt, insbesondere mit dieser verschweißt ist.Furthermore, it is preferably provided that the inlet nozzle is fixed to an end portion on a side facing away from the core tube of the tube plate to the tube plate, in particular welded thereto.

Gemäß einer bevorzugten Ausführungsform der Erfindung weist das Kernrohr eine entlang der Längsachse erstreckte zylindrische Wandung auf, in der die mindestens eine Öffnung angeordnet ist.According to a preferred embodiment of the invention, the core tube has a cylindrical wall extending along the longitudinal axis, in which the at least one opening is arranged.

Vorzugsweise geht der mindestens eine Vorverteilerbehälter von jener Wandung in radialer Richtung des Kernrohres ab und erstreckt sich dabei vorzugsweise bis hin zu einer der Wandung bzw. dem Kernrohr gegenüber liegenden Innenseite des Mantels. Somit wird eine Seitenwand des mindestens einen Vorverteilerbehälters bevorzugt durch die Wandung des Kernohres gebildet, wobei in jener Seitenwand bzw. dem entsprechenden Bereich der Wandung des Kernrohres die mindestens eine dem Vorverteilerbehälter zugeordnete Öffnung vorgesehen ist, über die das Flüssigkeit-Gas-Gemisch in den Vorverteilerbehälter gelangt. Vorzugsweise ist der mindestens eine Vorverteilerbehälter tortenstückförmig ausgebildet.Preferably, the at least one pre-distribution tank is from that wall in the radial direction of the core tube and preferably extends up to one of the wall or the core tube opposite the inside of the shell. Thus, a side wall of the at least one Vorverteilerbehälters is preferably formed by the wall of the core tube, wherein in that side wall or the corresponding region of the wall of the core tube, the at least one of the Vorverteilerbehälter associated opening is provided, via which the liquid-gas mixture in the Vorverteilerbehälter arrives. Preferably, the at least one pre-distribution container is pie-shaped.

Gemäß einer Ausgestaltung der Erfindung sind mehrere Vorverteilerbehälter vorgesehen, die jeweils senkrecht zur Längsachse von der Wandung des Kernrohres abgehen und vorzugsweise wie oben beschrieben ausgebildet sind. Zwischen benachbarten (vorzugsweise jeweils tortenstückförmig ausgestalteten) Vorverteilerbehältern befindet sich jeweils bevorzugt eine Lücke, durch die aus einem Vorverteilerbehälter austretendes Gas im Mantelraum nach unten strömen kann. Weiterhin sind insbesondere die Rohre des Rohrbündels durch diese Lücken an den Vorverteilerbehältern vorbei nach oben in den Kopf des Wärmeübertragers geführt. Die Rohre des Rohrbündels sind dabei am oberen Ende bzw. Kopf des Wärmetauschers insbesondere in Rohrzöpfen zusammengefasst, die durch die Lücken zwischen den Vorverteilerbehältern hindurchgeführt und vorzugsweise in der Rohrplatte festgelegt sind.According to one embodiment of the invention a plurality of Vorverteilerbehälter are provided which each depart perpendicular to the longitudinal axis of the wall of the core tube and are preferably formed as described above. Between adjacent (preferably piecemeal configured) Vorverteilerbehältern is in each case preferably a gap through which escaping from a Vorverteilerbehälter gas in the mantle space can flow down. Furthermore, in particular the tubes of the tube bundle are guided by these gaps past the Vorverteilerbehältern up into the head of the heat exchanger. The tubes of the tube bundle are in this case combined at the upper end or head of the heat exchanger, in particular in tube plugs, which are passed through the gaps between the pre-distributor containers and are preferably fixed in the tube plate.

Der mindestens eine bzw. die mehreren Vorverteilerbehälter weisen jeweils einen oberen Rand auf, über den hinweg das Gas (oder die gasförmige Phase) des zu entgasenden Flüssigkeit-Gas-Gemisches, das im jeweiligen Vorverteilerbehälter steht, im Mantelraum nach unten strömen kann, wobei der obere Rand des jeweiligen Vorverteilerbehälters bevorzugt oberhalb eines oberen Randes der in den jeweiligen Vorverteilerbehälter mündenden seitlichen Öffnung des Kernrohres angeordnet ist.The at least one or more Vorverteilerbehälter each have an upper edge over which the gas (or the gaseous phase) of the gas to be degassed liquid-gas mixture, which is in the respective Vorverteilerbehälter, can flow down in the jacket space, said Upper edge of the respective Vorverteilerbehälters is preferably arranged above an upper edge of the opening into the respective Vorverteilerbehälter lateral opening of the core tube.

D.h., in dem mindestens einen Vorverteilerbehälter trennen sich Gas und Flüssigkeit, wobei die Flüssigkeit über zumindest ein Ablaufrohr, das vom Boden des mindestens einen Vorverteilerbehälters abgeht, in das darunter liegende Verteilmittel (auch als Hauptverteiler bezeichnet) läuft. Das Gas strömt nach oben, durch eine im mindestens einen Vorverteilerbehälter angeordnete Lochplatte zur Vergleichmäßigung und dann weiter über den besagten oberen Rand des mindestens einen Vorverteilerbehälters nach unten. Wenn sich noch weitere Flüssigkeitstropfen in der Gasströmung befinden, fallen diese nach unten auf die jeweilige Lochplatte und von dort wird die Flüssigkeit wiederum durch zumindest ein Ablaufrohr, das von der Lochplatte abgeht und das vorzugsweise mit dem mindestens einen Ablaufrohr am Boden des jeweiligen Vorverteilerbehälters fluchtet, nach unten in den jeweiligen Vorverteilerbehälter und von dort über das mindestens eine Ablaufrohr am Boden des jeweiligen Vorverteilerbehälters zum Verteilmittel geleitet.That is, in the at least one Vorverteilerbehälter separate gas and liquid, the liquid via at least one drain pipe, which goes off the bottom of the at least one Vorverteilerbehälters, in the underlying distribution means (also referred to as main distributor) runs. The gas flows upwards, through a perforated plate arranged in the at least one pre-distributor tank for equalization and then further down over the said upper edge of the at least one pre-distributor tank. If there are any more liquid drops in the gas flow, they fall down on the respective perforated plate and from there the liquid is again through at least one drain pipe, which goes off the perforated plate and which is preferably aligned with the at least one drain pipe at the bottom of the respective Vorverteilerbehälters down to the respective Vorverteilerbehälter and from there on the at least one drain pipe at the bottom of the respective Vorverteilerbehälters directed to the distribution means.

Weiterhin ist gemäß einer bevorzugten Ausgestaltung der vorliegenden Erfindung vorgesehen, dass das Kernrohr nach unten hin unterhalb der mindestens einen Öffnung bzw. unterhalb der vorhandenen Öffnungen durch einen Boden verschlossen ist, damit das Flüssigkeit-Gas-Gemisch nicht nach unten durch das Kernrohr abfließen kann. Vorzugsweise ist jener Boden entlang der Längsachse auf der Höhe der Böden der vorhandenen Vorverteilerbehälter angeordnet.Furthermore, it is provided according to a preferred embodiment of the present invention that the core tube is closed at the bottom below the at least one opening or below the existing openings through a bottom, so that the liquid-gas mixture can not flow down through the core tube. Preferably, that floor along the longitudinal axis at the height of the floors of the existing Vorverteilerbehälter is arranged.

Schließlich ist gemäß einer weiteren vorteilhaften Ausgestaltung der vorliegenden Erfindung vorgesehen, dass der mindestens eine im Mantelraum angeordnete Vorverteilerbehälter bzw. die mehreren Vorverteilerbehälter im Kopf des Wärmeübertragers angeordnet sind.Finally, according to a further advantageous embodiment of the present invention, it is provided that the at least one pre-distributor container arranged in the jacket space or the plurality of pre-distributor containers are arranged in the head of the heat exchanger.

Weitere Einzelheiten und Vorteile der Erfindung sollen durch die nachfolgende Figurenbeschreibung eines Ausführungsbeispiels anhand der Figur erläutert werden.Further details and advantages of the invention will be explained by the following description of an embodiment with reference to the figure.

Es zeigt:

Fig. 1
eine ausschnitthafte, schematische Schnittansicht eines erfindungsgemäßen Wärmeübertragers; und
Fig. 2
eine Draufsicht auf die Vorverteilerbehälter des Wärmeübertragers gemäß Figur 1.
It shows:
Fig. 1
a fragmentary, schematic sectional view of a heat exchanger according to the invention; and
Fig. 2
a plan view of the Vorverteilerbehälter the heat exchanger according to FIG. 1 ,

Figur 1 zeigt im Zusammenhang mit Figur 2 einen erfindungsgemäßen Wärmeübertrager 1, mit einem drucktragenden, abschnittsweise hohlzylinderförmigen Mantel 20, der sich ausgehend von einem Kopf 2 des Wärmeübertragers 1 bzw. Mantels 20 entlang einer Längsachse bzw. Zylinderachse L nach unten erstreckt, die - bezogen auf einen bestimmungsgemäß angeordneten Zustand des Wärmeübertragers 1 - parallel zur Vertikalen verläuft. FIG. 1 shows in connection with FIG. 2 a heat exchanger 1 according to the invention, with a pressure-bearing, partially hollow cylindrical shell 20 which extends from a head 2 of the heat exchanger 1 or shell 20 along a longitudinal axis or cylinder axis L down, the - relative to a designated condition of the heat exchanger 1 - runs parallel to the vertical.

Der Mantel 20 umgibt einen Mantelraum M des Wärmeübertragers 1, in dem ein Rohrbündel R angeordnet ist, das aus einer Mehrzahl an Rohren 70 gebildet ist, die in mehreren Lagen helikal um ein Kernrohr 10 gewickelt sind, das konzentrisch zum Mantel 20 im Mantelraum M angeordnet ist und dessen Längsachse mit der Längsachse L des Mantels 20 zusammenfällt. Das Rohrbündel R dient zur Aufnahme eines fluiden Mediums, das in indirekten Wärmeaustausch mit einer im Mantelraum M zu führenden Flüssigkeit F treten soll, die von oben auf das Rohrbündel R aufgegeben wird.The jacket 20 surrounds a jacket space M of the heat exchanger 1, in which a tube bundle R is arranged, which is formed from a plurality of tubes 70, which are helically wound in several layers around a core tube 10, which is arranged concentrically to the jacket 20 in the shell space M. is and whose longitudinal axis coincides with the longitudinal axis L of the shell 20. The tube bundle R serves to receive a fluid medium which is intended to enter into indirect heat exchange with a liquid F to be led in the jacket space M, which is fed from above onto the tube bundle R.

Hierzu ist oberhalb des Rohrbündels R ein Verteilmittel 60 angeordnet, das dazu ausgebildet ist, jene Flüssigkeit F auf einen senkrecht zur Längsachse L bzw. Vertikalen verlaufenden Querschnitt des Mantelraumes M zu verteilen bzw. auf das Rohrbündel R aufzugeben.For this purpose, a distribution means 60 is arranged above the tube bundle R, which is designed to distribute that liquid F on a perpendicular to the longitudinal axis L or vertical cross-section of the jacket space M or abandon the tube bundle R.

Das Verteilmittel 60 wird dabei aus einem oder mehreren Vorverteilerbehältern 50 mit der Flüssigkeit F beschickt, die aus der Entgasung und Beruhigung eines zweiphasigen Flüssigkeit-Gas-Gemisches F resultiert, die in einem oder mehreren Vorverteilerbehältern 50 vorgenommen werden.The distribution medium 60 is supplied from one or more pre-distribution containers 50 with the liquid F resulting from the degassing and settling of a two-phase liquid-gas mixture F, which are carried out in one or more Vorverteilerbehältern 50.

Das Flüssigkeit-Gas-Gemisch wird dabei am Kopf 2 des Mantels 20 bzw. des Wärmeübertragers 1 in einen mit der Längsachse L bzw. dem Kernrohr 10 fluchtenden Einlassstutzen 30 in den Wärmeübertrager 1 eingeleitet, wobei der Einlassstutzen 30 von einer am Kopf 2 vorgesehen Rohrplatte 40 absteht und dort mit einem Endabschnitt 31 festgelegt ist. Die Rohrplatte 40 ist über ihren umlaufenden Randbereich 41 mit dem Mantel 20 verbunden. Auf einer dem Einlassstutzen 30 abgewandten Seite der Rohrplatte 40 - nämlich im Mantelraum M - ist die Wandung W des Kernrohres 10 mit einem Endabschnitt 11 an der Rohrplatte 40 festgelegt und somit bezüglich des Mantels 20 verankert. Dabei steht das Kernrohr 10 bzw. der durch die Wandung W umgebene Innenraum I des Kernrohres 10 in Fluidverbindung mit dem Einlassstutzen 30 (über eine entsprechende Öffnung in der Rohrplatte 40), so dass das in den Einlassstutzen 30 eingeleitet Flüssigkeit-Gas-Gemisch F' in das Kernrohr 10 bzw. dessen Innenraum I gelangt und dort nach unten strömt. Das Flüssigkeit-Gas-Gemisch F' trifft dabei auf einen in den Innenraum I eingebrachten, senkrecht zur Längsachse L verlaufenden Verschluss bzw. Boden 12 des Kernrohres 10 und wird durch seitliche Öffnungen 100 der Wandung W des Kernrohres 10 in die besagten Vorverteilerbehälter 50 geleitet.The liquid-gas mixture is introduced into the heat exchanger 1 at the head 2 of the jacket 20 or the heat exchanger 1 in an inlet connection 30 which is aligned with the longitudinal axis L or the core tube 10, wherein the inlet connection 30 is provided by a tube plate provided on the head 2 40 protrudes and is fixed there with an end portion 31. The tube plate 40 is connected via its circumferential edge region 41 with the jacket 20. On a side facing away from the inlet pipe 30 of the tube plate 40 - namely in the shell space M - the wall W of the core tube 10 is fixed with an end portion 11 on the tube plate 40 and thus anchored with respect to the shell 20. In this case, the core tube 10 or the interior I of the core tube 10 surrounded by the wall W is in fluid communication with the inlet connection 30 (via a corresponding opening in the tube plate 40), so that the liquid-gas mixture F 'introduced into the inlet connection 30 into the core tube 10 or whose interior I passes and flows down there. The liquid-gas mixture F 'thereby encounters an introduced into the interior I, perpendicular to the longitudinal axis L extending closure or bottom 12 of the core tube 10 and is passed through lateral openings 100 of the wall W of the core tube 10 in said Vorverteilerbehälter 50.

Die Vorverteilerbehälter 50 erstrecken sich jeweils ausgehend von der Wandung W des Kernrohres senkrecht zur Längsachse L, d.h., in radialer Richtung des Kernrohres 10, zur gegenüber liegenden Innenseite 20a des Mantels 20 des Wärmeübertragers 1. Die Vorverteilerbehälter 50 sind dabei gemäß Figur 2 in einer senkrecht zur Längsachse L verlaufenden Querschnittsebene tortenstückförmig, d.h., kreissektorförmig, ausgebildet, wobei je zwischen zwei benachbarten Vorverteilerbehältern 50 eine in radialer Richtung des Mantels 20 erstreckte Lücke 104 vorgesehen ist, durch die jeweils Rohre 70 des Rohrbündels R entlang der Längsachse L an den Vorverteilerbehältern 50 vorbei nach oben in den Kopf 2 des Wärmeübertragers 1 geführt sind. Jeweils mehrere Rohre 70 sind dabei an den Enden der Rohre 70 zu einem Rohrzopf zusammengefasst, wobei derartige Rohrzöpfe im Kopf 2 des Wärmeübertragers 1 über die besagte Rohrplatte 40 mit je einem zugeordneten Stutzen verbunden sein können oder mit seitlich am Mantel 20 bzw. zur Rohrplatte 40 vorgesehenen Rohrplatten mit Stutzen. Die Festlegung der Rohre 70 in seitlichen Rohrplatten hat jedoch den Nachteil, dass die Rohre 70 radial nach außen gebogen werden müssten. Dies würde einen höheren Fertigungsaufwand bedeuten und damit längere Fertigungszeiten. Zudem wäre eine größere Bauhöhe erforderlich, was zu einer Erhöhung der Fertigungskosten führen würde. Im Sumpf bzw. am unteren Ende des Wärmeübertragers 1 sind die Rohre 70 bzw. daraus gebildete Rohrzöpfe bevorzugt ebenfalls mit am Mantel 20 vorgesehenen Stutzen strömungsverbunden, so dass fluide Medien über die vorstehend beschriebenen Stutzen in das Rohrbündel R eingeleitet bzw. aus dem Rohrbündel R abgezogen werden können.The pre-distributor tank 50 each extend from the wall W of the core tube perpendicular to the longitudinal axis L, ie, in the radial direction of the core tube 10, to the opposite inner side 20a of the shell 20 of the heat exchanger 1. The Vorverteilerbehälter 50 are in accordance with FIG. 2 in a direction perpendicular to the longitudinal axis L extending cross-sectional plane pie slice, that is, circular sector shaped, each provided between two adjacent Vorverteilerbehältern 50 extending in the radial direction of the shell 20 gap 104 through the respective tubes 70 of the tube bundle R along the longitudinal axis L to the Vorverteilerbehältern 50 are guided past up into the head 2 of the heat exchanger 1. In each case a plurality of tubes 70 are combined at the ends of the tubes 70 to form a tube plait, wherein such tube plugs may be connected in the head 2 of the heat exchanger 1 via the said tube plate 40, each with an associated nozzle or laterally on the jacket 20 and the tube plate 40th provided tube plates with nozzles. However, the provision of the tubes 70 in lateral tube plates has the disadvantage that the tubes 70 would have to be bent radially outward. This would mean a higher production cost and thus longer production times. In addition, a larger height would be required, which would lead to an increase in manufacturing costs. In the sump or at the lower end of the heat exchanger 1, the tubes 70 or tubular fuctions formed therefrom are preferably also flow-connected with nozzles provided on the jacket 20, so that fluid media introduced into the tube bundle R via the nozzles described above or withdrawn from the tube bundle R. can be.

Das Flüssigkeits-Gas-Gemisch F' wird in den Vorverteilerbehältern 50 aufgestaut, beruhigt und entgast, wobei die gasförmige Phase G nach oben über einen oberen Rand 53 einer vom Boden 52 des jeweiligen Vorverteilerbehälters 50 abgehenden Seitenwandung 51 des jeweiligen Vorverteilerbehälters 50 im Mantelraum M durch jene Lücken 104 nach unten strömen kann. Am Boden 52 des jeweiligen Vorverteilerbehälters 50 sind an einer der Öffnung 100 des jeweiligen Vorverteilerbehälters 50 gegenüberliegenden Seite des betreffenden Vorverteilerbehälters 50 vorzugsweise zwei Ablaufrohre 61 vorgesehen, über die die entgaste Flüssigkeit F in das Verteilmittel 60 abläuft.The liquid-gas mixture F 'is dammed in the Vorverteilerbehältern 50, calms and degassed, the gaseous phase G upwards over an upper edge 53 of the bottom 52 of the respective Vorverteilerbehälters 50 outgoing side wall 51 of the respective Vorverteilerbehälters 50 in the shell space M through those gaps 104 can flow down. At the bottom 52 of the respective Vorverteilerbehälters 50 are at one of the opening 100 of the respective Vorverteilerbehälters 50 opposite side of the relevant Vorverteilerbehälters 50 preferably two drain pipes 61 is provided, via which the degassed liquid F runs into the distribution means 60.

Der obere Rand 101 der jeweiligen Öffnung 100 der Wandung W des Kernrohres 10 ist entlang der Längsachse L unterhalb des oberen Randes 53 des zugeordneten Vorverteilerbehälters 50 sowie unterhalb einer Lochplatte 102 angeordnet, die sich in dem jeweiligen Vorverteilerbehälter 50 über dessen Querschnitt erstreckt und eine Mehrzahl an Löchern 103 aufweist, so dass die gasförmige Phase G zur Vergleichmäßigung durch die Löcher 103 der jeweiligen Lochplatte 102 strömen kann, bevor sie nach oben hin aus dem jeweiligen Vorverteilerbehälter 50 austritt. Sofern Flüssigkeitstropfen F durch die Gasströmung mitgerissen werden, können diese auf die jeweilige Lochplatte 102 fallen und werden von dort wiederum in das Verteilmittel 60 geleitet, und zwar über je zwei Ablaufrohre 62 der jeweiligen Lochplatte 102, die jeweils mit einem zugeordneten, vom Boden 52 des jeweiligen Vorverteilerbehälters 50 abgehenden Ablaufrohr 61 fluchten. In der Figur 2 ist der in der Draufsicht rechte Vorverteilerbehälter 50 ohne zugehörige Lochplatte 102 gezeigt, so dass die Positionen der Ablaufrohre 61 am Boden 52 des Vorverteilerbehälters 50 sichtbar sind.The upper edge 101 of the respective opening 100 of the wall W of the core tube 10 is arranged along the longitudinal axis L below the upper edge 53 of the associated Vorverteilerbehälters 50 and below a perforated plate 102 which extends in the respective Vorverteilerbehälter 50 over the cross section and a plurality of Holes 103, so that the gaseous phase G can flow to equalize through the holes 103 of the respective perforated plate 102 before it exits upwardly from the respective Vorverteilerbehälter 50. If liquid droplets F are entrained by the gas flow, they can fall to the respective perforated plate 102 and are in turn passed into the distribution means 60, via two drain pipes 62 of the respective perforated plate 102, each with an associated, from the bottom 52 of the respective outgoing distributor tank 50 outgoing drainage pipe 61 are aligned. In the FIG. 2 the right-hand pre-distributor tank 50 without a corresponding perforated plate 102 is shown in the plan view, so that the positions of the drainage pipes 61 on the bottom 52 of the pre-distributor tank 50 are visible.

Die Böden 52 der einzelnen Vorverteilerbehälter 50 verlaufen auf Höhe des Bodens 12 des Kernrohres 10 senkrecht zur Längsachse L.The bottoms 52 of the individual Vorverteilerbehälter 50 extend at the level of the bottom 12 of the core tube 10 perpendicular to the longitudinal axis L.

Durch die Erfindung können teure Aufweitungen am Kopf 2 von gewickelten Wärmeübertragern zur Trennung von Gas und Flüssigkeit vermieden werden. Auch kann die Bauhöhe des Apparates reduziert werden. Dies hat neben der Kostenersparnis den Effekt der Verkürzung der Rohrzöpfe. Das erleichtert die Fertigung und verkürzt somit die Fertigungszeit und reduziert die Kosten des Apparates zusätzlich. Bezugszeichenliste 1 Wärmeübertrager 2 Kopf 10 Kernrohr 11 Endabschnitt 12 Boden 20 Mantel 20a Innenseite 30 Einlassstutzen 40 Rohrplatte 41 Randbereich 50 Vorverteilerbehälter 51 Seitenwandung 52 Boden 53 Oberer Rand 60 Verteilmittel 61,62 Ablaufrohre 70 Rohr 100 Öffnungen 101 Oberer Rand 102 Lochplatte 103 Löcher 104 Lücken F Flüssigkeit F' Flüssigkeit-Gas-Gemisch G Gas I Innenraum L Längsachse M Mantelraum R Rohrbündel By means of the invention, expensive expansions on the head 2 of wound heat exchangers for separating gas and liquid can be avoided. Also, the height of the apparatus can be reduced. In addition to the cost savings, this has the effect of shortening the tube plugs. This facilitates the production and thus shortens the production time and additionally reduces the costs of the apparatus. <B> LIST OF REFERENCES </ b> 1 Heat exchanger 2 head 10 core tube 11 end 12 ground 20 coat 20a inside 30 inlet port 40 tube plate 41 border area 50 Vorverteilerbehälter 51 sidewall 52 ground 53 upper edge 60 distribution means 61.62 drain pipes 70 pipe 100 openings 101 upper edge 102 perforated plate 103 holes 104 Gaps F liquid F ' Liquid-gas mixture G gas I inner space L longitudinal axis M shell space R tube bundle

Claims (11)

  1. Heat exchanger having:
    - a jacket extending along a longitudinal axis (L) and surrounding a jacket space (M) of the heat exchanger (1),
    - a tube bundle (R) arranged in the jacket space (M) and having a multiplicity of tubes (70) which are wound helically about a core tube (10) extending along the longitudinal axis (L), and
    - at least one pre-distributor container (50), arranged in the jacket space (M), for receiving and degassing a liquid-gas mixture (F'), which is designed to supply a distribution means (60) with the liquid (F) degassed in the at least one pre-distributor container (50), wherein the distribution means (60) is designed to charge the tube bundle (R) with the liquid (F),
    characterized in that
    the jacket (20) has, at the head (2) of the heat exchanger (1), an inlet (30) which is in particular in line with the longitudinal axis (L), in particular in the form of an inlet pipe (30), which is fluidically connected to the core tube (10), and in that the core tube (10) has at least one lateral opening (100) opening into the at least one pre-distributor container (50) such that the liquid-gas mixture (F') can be fed, via the inlet (30), the core tube (10) and that at least one lateral opening (100) of the core tube (10), into the at least one pre-distributor container (50).
  2. Heat exchanger according to Claim 1, characterized in that the core tube (10) is secured with an end section (11) on a tube plate (40) provided at the head (2) of the heat exchanger (1) and in particular extending perpendicular to the longitudinal axis (L).
  3. Heat exchanger according to Claim 2, characterized in that the jacket (20) branches off from a circumferential rim region (41) of the tube plate (40).
  4. Heat exchanger according to either of Claims 2 and 3, characterized in that the inlet pipe (30) is secured with an end section (31) to the tube plate (40), on a side of the tube plate (40) oriented away from the core tube (10).
  5. Heat exchanger according to one of the preceding claims, characterized in that the core tube (10) has a cylindrical wall (W), in which is formed the at least one opening (100).
  6. Heat exchanger according to Claim 5, characterized in that the at least one pre-distributor container (50) branches off from that wall (W) and extends in particular as far as an internal side (20a) of the jacket (20).
  7. Heat exchanger according to one of the preceding claims, characterized in that the at least one pre-distributor container (50) has an upper rim (53) beyond which in particular the gaseous phase (G) of the liquid-gas mixture (F') in the jacket space (M) can flow downwards, wherein the upper rim (53) of the at least one pre-distributor container (50) is arranged above an upper rim (101) of that at least one lateral opening (100) of the core tube (10).
  8. Heat exchanger according to one of the preceding claims, characterized in that the at least one pre-distributor container (50) for supplying the distribution means (60) with the degassed liquid (F) is fluidically connected to that distribution means (60) via at least one discharge tube (61).
  9. Heat exchanger according to one of the preceding claims, characterized in that in the at least one pre-distributor container (50), there is arranged, above the at least one lateral opening (100), a perforated plate (102) which extends in particular over the entire pre-distributor container cross section such that the gaseous phase (G) of the liquid-gas mixture (F') flows upwards via that perforated plate (102) in the at least one pre-distributor container (50), wherein in particular that perforated plate (102) is fluidically connected to the distribution means (60), in particular via at least one discharge tube (62), such that liquid (F) which has been carried with the gaseous phase (G) and falls on the perforated plate (102) can be guided into the distribution means (60), wherein in particular the at least one discharge tube (62) of the perforated plate (102) opens into the at least one pre-distributor container (50) and is in line with the at least one discharge tube (61) at the base (52) of the at least one pre-distributor container (50) such that liquid (F) can enter the distribution means (60) from the perforated plate (102) via the two discharge tubes (61, 62).
  10. Heat exchanger according to one of the preceding claims, characterized in that the core tube (10) is closed at the bottom, in particular below the at least one opening (100), by a base (12) which is in particular arranged, along the longitudinal axis (L), at the height of a base (52) of the at least one pre-distributor container (50).
  11. Heat exchanger according to one of the preceding claims, characterized in that the at least one pre-distributor container (50) is arranged in the head (2) of the heat exchanger (1).
EP13003276.6A 2013-06-27 2013-06-27 Coiled heat exchanger with core tube feed Active EP2818821B1 (en)

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ES13003276.6T ES2568053T3 (en) 2013-06-27 2013-06-27 Spiral heat exchanger with power through the central tube
EP13003276.6A EP2818821B1 (en) 2013-06-27 2013-06-27 Coiled heat exchanger with core tube feed
PL13003276T PL2818821T3 (en) 2013-06-27 2013-06-27 Coiled heat exchanger with core tube feed
US14/315,875 US10113802B2 (en) 2013-06-27 2014-06-26 Spiral wound heat exchanger system with central pipe feeder
CN201410293621.3A CN104251630B (en) 2013-06-27 2014-06-26 Wound form heat transmitter with core pipe filling

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Also Published As

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US20150000873A1 (en) 2015-01-01
CN104251630A (en) 2014-12-31
ES2568053T3 (en) 2016-04-27
PL2818821T3 (en) 2016-07-29
CN104251630B (en) 2017-09-26
EP2818821A1 (en) 2014-12-31
US10113802B2 (en) 2018-10-30

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