EP3430338B1 - Separating device for wound heat exchangers for separating a gaseous phase from a liquid phase of a two-phase medium conveyed over the sheath - Google Patents

Separating device for wound heat exchangers for separating a gaseous phase from a liquid phase of a two-phase medium conveyed over the sheath Download PDF

Info

Publication number
EP3430338B1
EP3430338B1 EP17712923.6A EP17712923A EP3430338B1 EP 3430338 B1 EP3430338 B1 EP 3430338B1 EP 17712923 A EP17712923 A EP 17712923A EP 3430338 B1 EP3430338 B1 EP 3430338B1
Authority
EP
European Patent Office
Prior art keywords
chimney
roof
heat exchanger
phase
tray
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
EP17712923.6A
Other languages
German (de)
French (fr)
Other versions
EP3430338A1 (en
Inventor
Manfred Steinbauer
Christian Matten
Christiane Kerber
Jürgen Spreemann
Ingomar Blum
Luis Matamoros
Florian Deichsel
Niels Treuchtlinger
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
Publication of EP3430338A1 publication Critical patent/EP3430338A1/en
Application granted granted Critical
Publication of EP3430338B1 publication Critical patent/EP3430338B1/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28B—STEAM OR VAPOUR CONDENSERS
    • F28B9/00—Auxiliary systems, arrangements, or devices
    • F28B9/08—Auxiliary systems, arrangements, or devices for collecting and removing condensate
    • 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

Definitions

  • the invention relates to a wound heat exchanger according to claim 1.
  • wound heat exchangers are e.g. used in physical washes for acid gas removal (e.g. rectisol process), in ethylene plants or in plants for the production of liquid natural gas (LNG).
  • acid gas removal e.g. rectisol process
  • LNG liquid natural gas
  • a medium that is introduced into the jacket space in two phases must be separated into a liquid phase and a gaseous phase, so that the two phases can be added to a tube bundle of the heat exchanger separately and as uniformly as possible over the cross section of the jacket space consequently, indirect heat transfer can take place between the two phases of the first medium and a second medium carried in the tube bundle.
  • Wound heat exchangers with liquid distributors or separation devices for separating a gaseous phase from a liquid phase are, for example, from the DE 10 2012 000 146 A1 . EP 2 818 821 A1 . DE 102011 017 030 A1 . DE 10 2010 055 452 A1 and DE 10 2004 040 974 A1 known.
  • DE 10 2010 055 452 A1 a flow guiding device for inlet openings of falling liquid channels, which allows a gaseous phase to rise in the liquid channel.
  • DE 10 2004 040 974 A1 the use of a baffle plate for degassing the two-phase flow.
  • the object of the present invention is to provide a wound heat exchanger with a separating device which allows an improved separation of the gaseous phase from the liquid phase in a simple manner.
  • a wound heat exchanger for indirect heat transfer between a two-phase first medium and a second medium, comprising: a jacket that surrounds a jacket space and extends along a longitudinal axis, an inlet for admitting the two-phase first medium into the jacket space, one In the jacket space arranged tube bundle comprising a plurality of tubes for receiving the second medium, which are helically wound around the longitudinal axis, and a separating device for separating a gaseous phase from a liquid phase of the two-phase first medium, the separating device having a bottom arranged above the tube bundle for collecting the has liquid phase, the floor for separating the two phases having a plurality of chimneys, the respective chimney projecting from a side of the floor facing away from the tube bundle, being covered by a roof and opening into a through opening in the floor, where an inlet opening is also provided between the respective roof and an upper end of the respective chimney, through which the gaseous phase can flow into the respective chimney, so that in particular the liquid phase can flow past
  • the chimneys can advantageously be designed in such a way that the liquid does not flow into the chimneys through the inlet openings, even when the liquid load is high, and a reliable separation of the two phases is still guaranteed.
  • a plurality of differing streams or media in particular two or three different streams, can be provided on the pipe side, which exchange heat indirectly with the jacket-side first medium or stream.
  • the tubes of the tube bundle can be divided into a corresponding number of tube groups, so that a tube group is assigned to each tube-side (second) medium.
  • the separating device can also take over the function of the actual liquid distributor.
  • the base has a plurality of openings through which the liquid phase collected on the base can rain directly onto the tube bundle, i.e. without going through further flow-carrying components.
  • a separate liquid distributor can be provided for distributing the liquid phase, which is in flow connection with the bottom, so that the liquid phase collected on the bottom can get into the distributor.
  • the distributor is configured to distribute the liquid phase over the tube bundle.
  • the liquid phase can be passed through a gap running around the jacket or via pipes into an annular channel below with distributor arms.
  • the liquid phase can be introduced into the core tube through a central opening and then fed to a distributor in the form of a pressure distributor.
  • Such liquid distributors are for example in the DE 10 2004 040 974 A1 described in detail. Other distributors are also conceivable.
  • the invention provides that the respective chimney is formed by a circumferential cylindrical wall which extends from an edge region bordering the respective passage opening, so that the respective passage opening of the floor forms an outlet opening of the respective chimney facing the tube bundle downwards ,
  • the tubes of the tube bundle are wound around or on a core tube of the heat exchanger which extends along the longitudinal axis of the jacket in the jacket space and is preferably arranged coaxially to this longitudinal axis, the core tube preferably carrying the load which picks up pipes.
  • the individual tubes of the tube bundle are preferably wound onto the core tube in several tube layers, the individual tube layers resting on one another via spacers.
  • the roof of the respective fireplace has a peripheral edge area, with a bottom edge pointing downwards, which runs at the level of or below a peripheral and upward-facing end face of the respective fireplace, which the inlet opening of the the respective fireplace.
  • the chimneys each extend along an axis that runs perpendicular to the floor and in particular parallel to the longitudinal or cylindrical axis of the jacket of the heat exchanger, which preferably runs parallel to the vertical.
  • the roof of the respective chimney projects perpendicularly to the axis of the respective chimney with the peripheral edge region beyond the associated chimney.
  • the circumferential part or edge area of the respective roof, which in this way protrudes beyond the respective chimney or said cylindrical wall perpendicular to the axis of the respective chimney, is also referred to herein as the protrusion of the respective roof.
  • At least one or more or all chimneys each have an inner chimney (the chimneys in question are then referred to as outer chimneys), which extends through the roof of the respective outer chimney and with a protrudes from the roof of the respective outer chimney, the upper section of the respective inner chimney having an inlet opening, which in turn is covered by a roof of the respective inner chimney, so that the liquid phase from the roof of the respective inner chimney past the respective inlet opening of the inner chimney Roof of the associated outer chimney and can flow from there to the bottom of the separation device, and so that the gaseous phase additionally via the inlet opening of the respective inner chimney located below the roof of the respective inner chimney into the respective inner chimney and from there onto the pipe b bundle is feasible.
  • the roof of the respective inner chimney has a circumferential edge region, with a lower edge pointing downwards, which runs at the level or below a circumferential, upward-facing end face of the upper section of the respective inner chimney, which forms the inlet opening of the respective indoor chimney.
  • the separating device can be configured in a particularly space-saving manner.
  • the separating device can also be arranged in sections of the casing or casing space in which the circumference or diameter of the casing decreases continuously upwards, so that a corresponding casing section surrounding the separating device, e.g. can take the form of a truncated cone.
  • the jacket has a jacket section which surrounds at least a part of the separating device, in particular at least a part of the chimneys, in a cross section perpendicular to the longitudinal axis of the jacket and tapers upwards in the direction of the longitudinal axis and in particular the shape has a truncated cone.
  • the respective inner chimney extends along the axis of the respectively assigned outer chimney, in which the respective inner chimney is arranged at least in sections.
  • the respective inner chimney is arranged coaxially with the respectively assigned outer chimney surrounding the inner chimney.
  • the chimneys form a group of first chimneys and a group of second chimneys, the second chimneys having a greater height above the floor along their respective axes than the first chimneys.
  • the distance from a second chimney to the roof of an adjacent first chimney perpendicular to the axis of the second chimney is smaller than the projection of the roof of the adjacent first chimney.
  • first and second chimneys are arranged alternately along the floor, so that a second chimney is preferably arranged between every two adjacent first chimneys or a first chimney is arranged between every two adjacent second chimneys.
  • the object of the invention is achieved by a method for separating a gaseous phase from a liquid phase of a two-phase first medium and for heat transfer between the first medium and a second medium using a wound heat exchanger according to the invention, the first medium having the liquid and the gaseous phase is fed via the inlet into the jacket space, the liquid phase if It hits a roof while feeding in, flows past the respective inlet opening to the floor, and the liquid phase is collected on the floor and then distributed to the tube bundle, and the gaseous phase is introduced into the through the inlet opening below the respective roof assigned chimney (in particular inner chimney, outer chimney, first chimney or second chimney) is introduced and from there is guided through the floor through the floor to the tube bundle.
  • the first medium having the liquid and the gaseous phase is fed via the inlet into the jacket space, the liquid phase if It hits a roof while feeding in, flows past the respective inlet opening to the floor, and the liquid phase is collected on the floor and then distributed to the tube bundle, and the gaseous phase is introduced into the
  • the chimneys are designed in such a way that liquid does not flow into the chimneys via the inlet openings, even with a high liquid load.
  • Figure 1 presents in a schematic sectional view the basic task of distributing a two-phase first medium M in a wound Heat exchanger 1.
  • a separation device 2 is used according to the invention, which separates a gaseous phase G from a liquid phase F of the first medium M.
  • the liquid phase F and the gaseous phase G can each be separately and evenly distributed onto the tube bundle 3 of the wound heat exchanger 1 arranged under the separating device 2, in which a second medium M 'is guided, so that the two media M, M 'can exchange heat indirectly.
  • several mediums can also be guided separately on the pipe side, which can then exchange heat indirectly with the first medium M.
  • the wound heat exchanger 1 each has a jacket 5, which is preferably cylindrical at least in sections, which surrounds a jacket space 6 of the heat exchanger 1 and a tube bundle 3 arranged in the jacket space 6, which can have a plurality of tubes 30, which can be helically wound on a core tube 300, wherein the core tube 300 is arranged in particular coaxially to a longitudinal axis z of the heat exchanger 1 or the jacket 5, along which the jacket 5 extends. Said longitudinal axis z preferably runs parallel to the vertical.
  • the wound heat exchanger 1 each have an inlet 7 for inlet of the two-phase first medium M into the jacket space 6 above a bottom 4 of a separating device 2, which is configured to separate the gaseous and the liquid phases G, F of the first medium M, so that the two phases F, G can be distributed separately on the tube bundle 3.
  • the bottom 4 runs horizontally or perpendicular to the longitudinal axis z and is arranged above the tube bundle 3, it preferably extending over the entire cross-sectional area of the jacket space 6 perpendicular to the longitudinal axis z and thereby dividing the jacket space 6 into two sections.
  • the bottom 4 is preferably used to collect the liquid phase F and is preferably fluidly connected to a liquid distributor 4a via a suitable flow connection S, the liquid distributor 4a being configured to distribute the liquid phase F over the tube bundle 3, the liquid phase F being the Pipe bundle, for example, applied from above.
  • the devices already described above can be used as the liquid distributor 4a. Shows of the different possibilities Fig. 5 exemplary one Embodiment of a liquid distributor 4a, which with all embodiments of the separation device 2 according to the invention (for example according to the Figures 2 to 4 ) can be used.
  • the bottom 4 of the separating device 2 is connected to the core tube 300 of the heat exchanger 1 by means of a suitable flow connection S, so that liquid phase F collected on the bottom 4 can get into the core tube 300.
  • the fireplaces 50, 60, 70 of the respective embodiment as shown in FIGS Figures 2 to 4 , see below
  • the chimneys are not shown here for the sake of clarity.
  • the liquid distributor 4a according to Figure 5 now has a plurality of arms 4b below the bottom 4a of the separating device 2 and above the tube bundle 3, which arms are in flow connection with the core tube 300 and are designed to distribute the liquid phase F on the tube bundle 3 which is below the arms 4b is arranged.
  • the arms 4b extend, starting from the core tube 300, in particular in each case in the radial direction outwards to the jacket 5, gaps being provided between adjacent arms 4b, through which the tubes 30 of the tube bundle 3 are combined in so-called braids 31 past the arms 4b upwards be guided, where they open, for example, below the bottom 4 in laterally provided on the jacket 5 nozzle 32.
  • the separating device 2 itself can also function as a liquid distributor in all embodiments.
  • the base 4 can have a multiplicity of openings 40a, in particular distributed uniformly over the base 4, through which the liquid phase F is then applied to the tube bundle 3.
  • a separate liquid distributor 4a can then be dispensed with.
  • the bottom 4 has a plurality of through openings 40 for separating the two phases F, G of the first medium M, through which the gaseous phase G can be distributed onto the tube bundle 3.
  • the through openings 40 are each in flow connection with an associated chimney 50, the respective chimney 50 preferably being formed by a circumferential cylindrical wall 50, which is preferably a closed wall that has no openings, and that of a circumferential one Edge area of each Through opening 40 protrudes upwards in the direction of an axis L of the respective chimney 50 from a side of the base 4 facing away from the tube bundle 3, so that the respective through opening 40 forms a downward-pointing outlet opening 40 of the respective chimney 50 facing the tube bundle 3.
  • the axes L of the chimneys 50 are preferably cylinder axes L, which run parallel to the longitudinal axis z of the heat exchanger 1 or jacket 5.
  • the respective chimney 50 furthermore has an inlet opening 51 at an upper end, which is opposite the respective outlet opening 40 in the direction of the respective axis L and is in each case covered by a roof 52, so that a circumferential gap between the respective roof 52 and the one below it arranged fireplace 50 is formed.
  • the liquid phase F which is applied to the bottom 4 or the separating device 2 from above, can now flow from the respective roof 52 past the respective inlet opening 51 or the respective circumferential gap to the bottom 4, where it is collected, and then to be distributed separately from the gaseous phase G to the tube bundle 3, for example by means of the liquid distributor 4a, which in detail, for example, according to Figure 5 can be formed, whereas the gaseous phase G enters the associated chimney 50 via the respective gap or the inlet opening 51 located below the respective roof 52 and from there via the assigned passage opening or outlet opening 40 through the base 4 to the tube bundle 3 is feasible.
  • a liquid distributor 4a can also be dispensed with. In this case, the liquid phase F can be distributed to the tube bundle 3 via openings 40a in the base 4.
  • the roofs 52 are preferably arranged at the same height in the direction of the longitudinal axis z of the wound heat exchanger 1 or jacket 5 and each have a circumferential edge region 52a with a circumferential, ring-shaped lower edge 52b, which in relation to the longitudinal axis z is at height or runs below a peripheral end face 50a of the respective chimney 50, which borders the inlet opening 51 of the respective chimney 50. It is further provided that the roof 52 of the respective chimney 50 projects perpendicularly to the axis L of the respective chimney 50 with the peripheral edge area 52a over the associated chimney 50. This ensures that, if possible, no liquid portion F of the first medium M can get into the respective chimney 50. Furthermore, the gaseous phase G is thereby along its Flow paths in the direction of the tube bundle 3 deflected several times, which improves the separation of the liquid phase F from the gaseous phase G.
  • Figure 3 shows a further embodiment of a wound heat exchanger 1 according to the invention, in which the individual chimneys 50, 70 basically according to the type of Figure 2 are trained, now in contrast to Figure 2 there are first chimneys 50, which have a lower height above the floor 4 along the respective axis L than second chimneys 70.
  • the first and second chimneys 50, 70 are arranged alternately, so that due to the different heights of the respective roofs 52, 72 a larger number of chimneys 50, 70 can be arranged on the floor 4 per surface.
  • FIG 4 a further embodiment of a wound heat exchanger 1 according to the invention, in which the chimneys 50 in the manner of Figure 2 are formed, an internal chimney 60 is now additionally arranged in the respective chimney 50, which is designed here as an outer chimney, which extends through the roof 52 of the respective outer chimney 50 and projects with an upper section 63 from the respective roof 52, whereby the upper section 63 of the respective inner chimney 60 has an inlet opening 61, which in turn is covered by a roof 62 of the respective inner chimney 60, so that there is again a circumferential gap between the respective roof 62 and the inner chimney 60 arranged underneath.
  • the inner chimneys 60 can also each be formed by a circumferential cylindrical wall 60 which can extend downwards in the surrounding outer chimney 50 to the level of the respective through opening 40 of the base 4, so that a lower outlet opening 41 of the respective inner chimney 60, which faces the tube bundle 3, lies in the opening plane of the respective passage opening 40.
  • liquid phase F of a first medium M applied to the separating device 2 or the bottom 4 from above can now pass from the roof 62 of the respective inner chimney 60 past the gap or the inlet opening 61 of the respective inner chimney 60 onto the roof 52 of the respective assigned outer chimney 50 and flow from there to the floor 4, where it can be collected and distributed to the tube bundle 3.
  • the gaseous phase G can continue to be conducted via the ring-shaped inlet openings 51 in the respective outer chimney 50 along the coaxial inner chimney 60 via the respective passage or outlet opening 40 to the tube bundle 3, with an additional flow path for the gaseous one now due to the inner chimneys 60 Phase G is present per outer chimney 50, since the gaseous phase G is now also in the respective inner chimney 60 via the inlet opening 61 of the respective inner chimney 60 located below the roof 62 of the respective inner chimney 60 and from there via the outlet opening 41 of the respective inner chimney onto the tube bundle 3 is feasible.
  • the roof 62 of the respective inner chimney 60 preferably also has a peripheral edge region 62a, with an annular, bottom-facing lower edge 62b, which is at the level or below a peripheral, upward-facing end face 60a of the upper section 63 of the each inner chimney 60, which borders the inlet opening 61 of the respective inner chimney 60.

Landscapes

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

Description

Die Erfindung betrifft einen gewickelten Wärmeübertrager gemäß Anspruch 1. Derartige gewickelte Wärmeübertrager werden z.B. bei physikalischen Wäschen zur Sauergasentfernung (z.B. Rectisolverfahren), in Ethylenanlagen oder in Anlagen zur Herstellung von flüssigem Erdgas (LNG) verwendet.The invention relates to a wound heat exchanger according to claim 1. Such wound heat exchangers are e.g. used in physical washes for acid gas removal (e.g. rectisol process), in ethylene plants or in plants for the production of liquid natural gas (LNG).

Bei typischen Anwendungen solcher Wärmeübertrager muss regelmäßig ein zweiphasig in den Mantelraum eingeleitetes Medium in eine flüssige Phase und eine gasförmige Phase getrennt werden, damit die beiden Phasen separat und jeweils möglichst gleichmäßig über den Mantelraumquerschnitt verteilt auf ein Rohrbündel des Wärmeübertragers gegeben werden können, so dass in der Folge eine indirekte Wärmeübertragung zwischen den beiden Phasen des ersten Mediums und einem in dem Rohrbündel geführten zweiten Medium stattfinden kann.In typical applications of such heat exchangers, a medium that is introduced into the jacket space in two phases must be separated into a liquid phase and a gaseous phase, so that the two phases can be added to a tube bundle of the heat exchanger separately and as uniformly as possible over the cross section of the jacket space consequently, indirect heat transfer can take place between the two phases of the first medium and a second medium carried in the tube bundle.

Gewickelte Wärmeübertrager mit Flüssigkeitsverteilern bzw. Trenneinrichtung zum Trennen einer gasförmigen Phase von einer flüssigen Phase sind z.B. aus der DE 10 2012 000 146 A1 , EP 2 818 821 A1 , DE 102011 017 030 A1 , DE 10 2010 055 452 A1 und DE 10 2004 040 974 A1 bekannt.Wound heat exchangers with liquid distributors or separation devices for separating a gaseous phase from a liquid phase are, for example, from the DE 10 2012 000 146 A1 . EP 2 818 821 A1 . DE 102011 017 030 A1 . DE 10 2010 055 452 A1 and DE 10 2004 040 974 A1 known.

So wird gemäß DE 10 2012 000 146 A1 eine Trennung der gasförmigen Phase von der flüssigen Phase unterstützt, in dem der Zweiphasenstrom auf eine entsprechend geformte Prallplatte gegeben wird. Gemäß EP 2 818 821 wird der Zweiphasenstrom über ein Kernrohr des Wärmeübertragers in einen Vorverteilerbehälter geführt und in diesem beruhigt und entgast. Es zeigt einen Wärmeübertrager gemäß dem Oberbegriff des Anspruchs 1. Gemäß DE 10 2011 017 030 A1 wird eine Trennung der gasförmige Phase von der flüssigen Phase zum einen beim Einleiten des Zweiphasenstroms in einen Ringkanal sowie des Weiteren durch Verteilarme bewerkstelligt, die zur Entgasung der Flüssigkeit mit dem Kernrohr in Strömungsverbindung stehen. Weiterhin betrifft die technische Lehre der DE 10 2010 055 452 A1 eine Strömungsleitvorrichtung für Einlauföffnungen von abfallenden Flüssigkeitskanälen, die es erlaubt, dass eine gasförmige Phase in dem Flüssigkeitskanal aufsteigen kann. Schließlich sieht die DE 10 2004 040 974 A1 die Verwendung eines Prallbleches zur Entgasung des Zweiphasenstromes vor.So according to DE 10 2012 000 146 A1 a separation of the gaseous phase from the liquid phase is supported by placing the two-phase flow on a correspondingly shaped baffle plate. According to EP 2 818 821 the two-phase flow is fed through a core tube of the heat exchanger into a pre-distributor tank and is calmed and degassed in this. It shows a heat exchanger according to the preamble of claim 1. According to DE 10 2011 017 030 A1 A separation of the gaseous phase from the liquid phase is accomplished on the one hand when the two-phase flow is introduced into an annular channel and also by means of distribution arms which are in flow connection with the core tube for degassing the liquid. Furthermore, the technical teaching of DE 10 2010 055 452 A1 a flow guiding device for inlet openings of falling liquid channels, which allows a gaseous phase to rise in the liquid channel. Finally she sees DE 10 2004 040 974 A1 the use of a baffle plate for degassing the two-phase flow.

Hiervon ausgehend liegt der vorliegenden Erfindung die Aufgabe zugrunde, einen gewickelten Wärmeübertrager mit einer Trenneinrichtung bereitzustellen, die auf einfache Weise eine verbesserte Trennung der gasförmigen Phase von der flüssigen Phase erlaubt.Proceeding from this, the object of the present invention is to provide a wound heat exchanger with a separating device which allows an improved separation of the gaseous phase from the liquid phase in a simple manner.

Diese Aufgabe wird durch einen Wärmeübertrager mit den Merkmalen des Anspruchs 1 gelöst. Vorteilhafte Ausgestaltungen der Erfindung sind in den Unteransprüchen angegeben und werden nachfolgend beschrieben.This object is achieved by a heat exchanger with the features of claim 1. Advantageous embodiments of the invention are specified in the subclaims and are described below.

Gemäß Anspruch 1 ist ein gewickelter Wärmeübertrager zur indirekten Wärmeübertragung zwischen einem zweiphasigem ersten Medium und einem zweiten Medium vorgesehen, mit: einem Mantel, der einen Mantelraum umgibt und sich entlang einer Längsachse erstreckt, einem Einlass zum Einlassen des zweiphasigen ersten Mediums in den Mantelraum, einem im Mantelraum angeordneten Rohrbündel aufweisend mehrere Rohre zur Aufnahme des zweiten Mediums, die helikal um die Längsachse gewickelt sind, und einer Trenneinrichtung zum Trennen einer gasförmigen Phase von einer flüssigen Phase des zweiphasigen ersten Mediums, wobei die Trenneinrichtung einen oberhalb des Rohrbündels angeordneten Boden zum Sammeln der flüssigen Phase aufweist, wobei der Boden zum Trennen der beiden Phasen eine Mehrzahl an Kaminen aufweist, wobei der jeweilige Kamin von einer dem Rohrbündel abgewandten Seite des Bodens vom Boden absteht, von einem Dach überdacht ist und in eine Durchgangsöffnung im Boden mündet, wobei weiterhin zwischen dem jeweiligen Dach und einem oberen Ende des jeweiligen Kamins eine Einlassöffnung vorgesehen ist, über die die gasförmige Phase in den jeweiligen Kamin einströmen kann, so dass insbesondere die flüssige Phase vom jeweiligen Dach an der jeweiligen Einlassöffnung vorbei auf den Boden abfließen kann, und so dass die gasförmige Phase über die unterhalb des jeweiligen Daches gelegene Einlassöffnung in den zugeordneten Kamin und von dort über die zugeordnete Durchgangsöffnung durch den Boden hindurch auf das Rohrbündel führbar ist.According to claim 1, a wound heat exchanger for indirect heat transfer between a two-phase first medium and a second medium is provided, comprising: a jacket that surrounds a jacket space and extends along a longitudinal axis, an inlet for admitting the two-phase first medium into the jacket space, one In the jacket space arranged tube bundle comprising a plurality of tubes for receiving the second medium, which are helically wound around the longitudinal axis, and a separating device for separating a gaseous phase from a liquid phase of the two-phase first medium, the separating device having a bottom arranged above the tube bundle for collecting the has liquid phase, the floor for separating the two phases having a plurality of chimneys, the respective chimney projecting from a side of the floor facing away from the tube bundle, being covered by a roof and opening into a through opening in the floor, where an inlet opening is also provided between the respective roof and an upper end of the respective chimney, through which the gaseous phase can flow into the respective chimney, so that in particular the liquid phase can flow past the respective roof opening onto the floor, and so that the gaseous phase can be conducted through the floor onto the tube bundle via the inlet opening located below the respective roof and into the associated chimney and from there through the assigned through opening.

Durch das Aufgeben der flüssigen Phase auf den Boden wird eine Verweilzeit der flüssigen Phase realisierbar, die hinreichend lang ist und daher ein Austreten der gasförmigen Phase aus dem Zweiphasengemisch erlaubt. Weiterhin wird durch die Umlenkung der gasförmigen Phase auf dem Strömungspfad durch den jeweiligen Kamin eine weitere Abscheidung von Tröpfchen aus der gasförmigen Phase möglich, was die Trennung weiter verbessert. Zudem lassen sich die Kamine mit Vorteil so auslegen, dass auch bei hoher Flüssigkeitslast die Flüssigkeit nicht über die Einlassöffnungen in die Kamine einströmt und weiterhin eine zuverlässige Trennung der beiden Phasen gewährleistet ist.By placing the liquid phase on the soil, a residence time of the liquid phase can be achieved which is sufficiently long and therefore allows the gaseous phase to escape from the two-phase mixture. Furthermore, by deflecting the gaseous phase on the flow path through the respective chimney, further separation of droplets from the gaseous phase is possible, which further improves the separation. In addition, the chimneys can advantageously be designed in such a way that the liquid does not flow into the chimneys through the inlet openings, even when the liquid load is high, and a reliable separation of the two phases is still guaranteed.

Weiterhin können rohrseitig auch eine Mehrzahl von sich unterscheidenden Strömen bzw. Medien, insbesondere zwei oder drei verschiedene Ströme vorgesehen sein, die mit dem mantelseitigen ersten Medium bzw. Strom indirekt Wärme austauschen. Die Rohre des Rohrbündels können hierzu in eine entsprechende Anzahl an Rohrgruppen aufgeteilt sein, so dass jedem rohrseitigen (zweiten) Medium eine Rohrgruppe zugeordnet ist.Furthermore, a plurality of differing streams or media, in particular two or three different streams, can be provided on the pipe side, which exchange heat indirectly with the jacket-side first medium or stream. For this purpose, the tubes of the tube bundle can be divided into a corresponding number of tube groups, so that a tube group is assigned to each tube-side (second) medium.

Gemäß einer Ausführungsform der Erfindung kann die Trenneinrichtung auch gleich die Funktion des eigentlichen Flüssigkeitsverteilers übernehmen. Hierbei kann z.B. vorgesehen sein, dass der Boden mehrere Öffnungen aufweist, über die die auf dem Boden gesammelte flüssige Phase direkt, d.h., ohne einen Umweg über weitere strömungsführende Komponenten, auf das Rohrbündel regnen kann.According to one embodiment of the invention, the separating device can also take over the function of the actual liquid distributor. Here, e.g. it should be provided that the base has a plurality of openings through which the liquid phase collected on the base can rain directly onto the tube bundle, i.e. without going through further flow-carrying components.

Zum Verteilen der flüssigen Phase kann gemäß einer alternativen Ausführungsform ein separater Flüssigkeitsverteiler vorgesehen sein, der mit dem Boden in Strömungsverbindung steht, so dass die auf dem Boden gesammelte flüssige Phase in den Verteiler gelangen kann. Der Verteiler ist dazu konfiguriert, die flüssige Phase auf das Rohrbündel zu verteilen. Z.B, kann die flüssige Phase über einen am Mantel umlaufenden Spalt oder über Rohre in einen darunter liegenden Ringkanal mit Verteilerarmen geleitet werden. Alternativ kann die flüssige Phase über eine zentrale Öffnung in das Kernrohr eingeleitet werden und sodann einem Verteiler in Form eines Druckverteilers zugeleitet werden. Derartige Flüssigkeitsverteiler sind z.B. in der DE 10 2004 040 974 A1 im Detail beschrieben. Andere Verteiler sind ebenfalls denkbar.According to an alternative embodiment, a separate liquid distributor can be provided for distributing the liquid phase, which is in flow connection with the bottom, so that the liquid phase collected on the bottom can get into the distributor. The distributor is configured to distribute the liquid phase over the tube bundle. For example, the liquid phase can be passed through a gap running around the jacket or via pipes into an annular channel below with distributor arms. Alternatively, the liquid phase can be introduced into the core tube through a central opening and then fed to a distributor in the form of a pressure distributor. Such liquid distributors are for example in the DE 10 2004 040 974 A1 described in detail. Other distributors are also conceivable.

Gemäß einer bevorzugten Ausführung kommt Erfindung ist vorgesehen, dass der jeweilige Kamin durch eine umlaufende zylindrische Wandung gebildet ist, die von einem die jeweilige Durchgangsöffnung berandenden Randbereich abgeht, so dass die jeweilige Durchgangsöffnung des Bodens eine dem Rohrbündel nach unten hin zugewandte Auslassöffnung des jeweiligen Kamins bildet.According to a preferred embodiment, the invention provides that the respective chimney is formed by a circumferential cylindrical wall which extends from an edge region bordering the respective passage opening, so that the respective passage opening of the floor forms an outlet opening of the respective chimney facing the tube bundle downwards ,

Gemäß einer bevorzugten Ausführungsform der Erfindung ist vorgesehen, dass die Rohre des Rohrbündels um bzw. auf ein Kernrohr des Wärmeübertragers gewickelt sind, das sich entlang der Längsachse des Mantels im Mantelraum erstreckt und vorzugsweise koaxial zu dieser Längsachse angeordnet ist, wobei bevorzugt das Kernrohr die Last der Rohre aufnimmt. Die einzelnen Rohre des Rohrbündels sind vorzugsweise in mehreren Rohrlagen auf das Kernrohr aufgewickelt, wobei die einzelnen Rohrlagen über Abstandshalter aufeinander aufliegen.According to a preferred embodiment of the invention it is provided that the tubes of the tube bundle are wound around or on a core tube of the heat exchanger which extends along the longitudinal axis of the jacket in the jacket space and is preferably arranged coaxially to this longitudinal axis, the core tube preferably carrying the load which picks up pipes. The individual tubes of the tube bundle are preferably wound onto the core tube in several tube layers, the individual tube layers resting on one another via spacers.

Gemäß einer bevorzugten Ausführungsform der vorliegenden Erfindung ist weiterhin vorgesehen, dass das Dach des jeweiligen Kamins einen umlaufenden Randbereich aufweist, mit einer nach unten weisenden Unterkante, die auf Höhe oder unterhalb einer umlaufenden sowie nach oben weisenden Stirnseite des jeweiligen Kamins verläuft, die die Einlassöffnung des jeweiligen Kamins berandet.According to a preferred embodiment of the present invention, it is further provided that the roof of the respective fireplace has a peripheral edge area, with a bottom edge pointing downwards, which runs at the level of or below a peripheral and upward-facing end face of the respective fireplace, which the inlet opening of the the respective fireplace.

Gemäß einer bevorzugten Ausführungsform der vorliegenden Erfindung ist weiterhin vorgesehen, dass sich die Kamine jeweils entlang einer Achse erstrecken, die senkrecht zum Boden verläuft sowie insbesondere parallel zur Längs- oder Zylinderachse des Mantels des Wärmeübertragers, die vorzugsweise parallel zur Vertikalen verläuft.According to a preferred embodiment of the present invention it is further provided that the chimneys each extend along an axis that runs perpendicular to the floor and in particular parallel to the longitudinal or cylindrical axis of the jacket of the heat exchanger, which preferably runs parallel to the vertical.

Gemäß einer bevorzugten Ausführungsform der vorliegenden Erfindung ist weiterhin vorgesehen, dass das Dach des jeweiligen Kamins senkrecht zur Achse des jeweiligen Kamins mit dem umlaufenden Randbereich über den zugeordneten Kamin hinausragt. Der umlaufende Teil bzw. Randbereich des jeweiligen Daches, der in dieser Weise über den jeweiligen Kamin bzw. die besagte zylindrische Wandung senkrecht zur Achse des jeweiligen Kamins hinausragt, wird hierin auch als Überstand des jeweiligen Daches bezeichnet.According to a preferred embodiment of the present invention, it is further provided that the roof of the respective chimney projects perpendicularly to the axis of the respective chimney with the peripheral edge region beyond the associated chimney. The circumferential part or edge area of the respective roof, which in this way protrudes beyond the respective chimney or said cylindrical wall perpendicular to the axis of the respective chimney, is also referred to herein as the protrusion of the respective roof.

Gemäß einer besonders bevorzugten Ausführungsform der vorliegenden Erfindung ist vorgesehen, dass in zumindest einem bzw. mehreren oder allen Kaminen jeweils ein Innenkamin angeordnet ist (die betreffenden Kamine werden dann als Außenkamine bezeichnet), der sich durch das Dach des jeweiligen Außenkamins hindurch erstreckt und mit einem oberen Abschnitt vom Dach des jeweiligen Außenkamins absteht, wobei der obere Abschnitt des jeweiligen Innenkamins eine Einlassöffnung aufweist, die wiederum von einem Dach des jeweiligen Innenkamins überdacht ist, so dass die flüssige Phase vom Dach des jeweiligen Innenkamin an der jeweiligen Einlassöffnung des Innenkamins vorbei auf das Dach des zugeordneten Außenkamins und von dort auf den Boden der Trenneinrichtung abfließen kann, und so dass die gasförmige Phase zusätzlich über die unterhalb des Daches des jeweiligen Innenkamins gelegene Einlassöffnung des jeweiligen Innenkamins in den jeweiligen Innenkamin und von dort auf das Rohrbündel führbar ist.According to a particularly preferred embodiment of the present invention, it is provided that at least one or more or all chimneys each have an inner chimney (the chimneys in question are then referred to as outer chimneys), which extends through the roof of the respective outer chimney and with a protrudes from the roof of the respective outer chimney, the upper section of the respective inner chimney having an inlet opening, which in turn is covered by a roof of the respective inner chimney, so that the liquid phase from the roof of the respective inner chimney past the respective inlet opening of the inner chimney Roof of the associated outer chimney and can flow from there to the bottom of the separation device, and so that the gaseous phase additionally via the inlet opening of the respective inner chimney located below the roof of the respective inner chimney into the respective inner chimney and from there onto the pipe b bundle is feasible.

Auch bezüglich der Innenskamine ist bevorzugt wiederum vorgesehen, dass das Dach des jeweiligen Innenkamins einen umlaufenden Randbereich aufweist, mit einer nach unten weisenden Unterkante, die auf Höhe oder unterhalb einer umlaufenden, nach oben weisenden Stirnseite des oberen Abschnitts des jeweiligen Innenkamins verläuft, die die Einlassöffnung des jeweiligen Innenkamins berandet.Regarding the inner chimneys, it is again preferably provided that the roof of the respective inner chimney has a circumferential edge region, with a lower edge pointing downwards, which runs at the level or below a circumferential, upward-facing end face of the upper section of the respective inner chimney, which forms the inlet opening of the respective indoor chimney.

Aufgrund der Innenkamine kann die Trenneinrichtung in besonders bauraumsparender Weise konfiguriert werden. Hierdurch kann die Trenneinrichtung auch in Abschnitten des Mantels bzw. Mantelraumes angeordnet werden, in denen der Umfang bzw. Durchmesser des Mantels nach oben hin kontinuierlich abnimmt, so dass ein entsprechender, die Trenneinrichtung umgebender Mantelabschnitt z.B. die Form eines Kegelstumpfmantels annehmen kann. Entsprechend weist der Mantel gemäß einer Ausführungsform der Erfindung einen Mantelabschnitt auf, der zumindest einen Teil der Trenneinrichtung, insbesondere zumindest einen Teil der Kamine, in einem Querschnitt senkrecht zur Längsachse des Mantels umgibt und sich in Richtung der Längsachse nach oben hin verjüngt und insbesondere die Form eines Kegelstumpfmantels aufweist.Due to the internal chimneys, the separating device can be configured in a particularly space-saving manner. As a result, the separating device can also be arranged in sections of the casing or casing space in which the circumference or diameter of the casing decreases continuously upwards, so that a corresponding casing section surrounding the separating device, e.g. can take the form of a truncated cone. Accordingly, according to one embodiment of the invention, the jacket has a jacket section which surrounds at least a part of the separating device, in particular at least a part of the chimneys, in a cross section perpendicular to the longitudinal axis of the jacket and tapers upwards in the direction of the longitudinal axis and in particular the shape has a truncated cone.

Weiterhin ist gemäß einer bevorzugten Ausführungsform der Erfindung vorgesehen, dass der jeweilige Innenkamin sich entlang der Achse des jeweils zugeordneten Außenkamins erstreckt, in dem der jeweilige Innenkamin zumindest abschnittsweise angeordnet ist.Furthermore, according to a preferred embodiment of the invention, it is provided that the respective inner chimney extends along the axis of the respectively assigned outer chimney, in which the respective inner chimney is arranged at least in sections.

Weiterhin ist auch bezüglich des Daches des jeweiligen Innenkamins vorgesehen, dass dieses senkrecht zu der Achse des jeweiligen Innenkamins mit einem umlaufenden Randbereich über den jeweiligen Innenkamin hinausragt, so dass wiederum ein umlaufender Überstand des Daches über den darunter liegenden Innenkamin gebildet wird.Furthermore, it is also provided with respect to the roof of the respective inner chimney that it projects perpendicularly to the axis of the respective inner chimney with a peripheral edge area over the respective inner chimney, so that in turn a circumferential projection of the roof is formed over the inner chimney below.

Besonders bevorzugt ist gemäß einer Ausführungsform der vorliegenden Erfindung vorgesehen, dass der jeweilige Innenkamin koaxial zum jeweils zugeordneten, den Innenkamin umgebenden Außenkamin angeordnet ist.It is particularly preferably provided according to one embodiment of the present invention that the respective inner chimney is arranged coaxially with the respectively assigned outer chimney surrounding the inner chimney.

Gemäß einer alternativen Ausführungsform der vorliegenden Erfindung ist vorgesehen, dass die Kamine eine Gruppe von ersten Kaminen sowie eine Gruppe von zweiten Kaminen bilden, wobei die zweiten Kamine entlang ihrer jeweiligen Achse eine größere Höhe über dem Boden aufweisen als die ersten Kamine.According to an alternative embodiment of the present invention, it is provided that the chimneys form a group of first chimneys and a group of second chimneys, the second chimneys having a greater height above the floor along their respective axes than the first chimneys.

Diesbezüglich ist gemäß einer Ausführungsform der Erfindung vorgesehen, dass der Abstand eines zweiten Kamins zum Dach eines benachbarten ersten Kamins senkrecht zur Achse des zweiten Kamins kleiner ist als der Überstand des Daches des benachbarten ersten Kamins.In this regard, it is provided according to an embodiment of the invention that the distance from a second chimney to the roof of an adjacent first chimney perpendicular to the axis of the second chimney is smaller than the projection of the roof of the adjacent first chimney.

Gemäß einer weiteren Ausführungsform ist vorgesehen, dass die ersten und zweiten Kamine entlang des Bodens alternierend angeordnet sind, so dass vorzugsweise zwischen je zwei benachbarten ersten Kaminen ein zweiter Kamin oder zwischen je zwei benachbarten zweiten Kaminen ein erster Kamin angeordnet ist.According to a further embodiment it is provided that the first and second chimneys are arranged alternately along the floor, so that a second chimney is preferably arranged between every two adjacent first chimneys or a first chimney is arranged between every two adjacent second chimneys.

Aufgrund der unterschiedlichen Höhen der ersten und zweiten Kamine und der alternierenden Anordnung ist es somit möglich, die Zahl der Kamine pro Fläche zu erhöhen, was die Trennung der beiden Phasen verbessert.Due to the different heights of the first and second chimneys and the alternating arrangement, it is thus possible to increase the number of chimneys per area, which improves the separation of the two phases.

Weiterhin wird die erfindungsgemäße Aufgabe durch ein Verfahren zum Trennen einer gasförmigen Phase von einer flüssigen Phase eines zweiphasigen ersten Mediums sowie zur Wärmeübertragung zwischen dem ersten Medium und einem zweiten Medium unter Verwendung eines gewickelten, erfindungsgemäßen Wärmeübertragers gelöst, wobei das erste Medium aufweisend die flüssige und die gasförmige Phase über den Einlass in den Mantelraum eingespeist wird, wobei die flüssige Phase, wenn Sie beim Einspeisen auf ein Dach auftrifft, an der jeweiligen Einlassöffnung vorbei auf den Boden abfließt, und wobei die flüssige Phase auf dem Boden gesammelt und anschließend auf das Rohrbündel verteilt wird, und wobei die gasförmige Phase über die unterhalb des jeweiligen Daches gelegene Einlassöffnung in den zugeordneten Kamin (insbesondere Innenkamin, Außenkamin, erster Kamin oder zweiter Kamin) eingeleitet und von dort über die zugeordnete Durchgangsöffnung durch den Boden hindurch auf das Rohrbündel geführt wird.Furthermore, the object of the invention is achieved by a method for separating a gaseous phase from a liquid phase of a two-phase first medium and for heat transfer between the first medium and a second medium using a wound heat exchanger according to the invention, the first medium having the liquid and the gaseous phase is fed via the inlet into the jacket space, the liquid phase if It hits a roof while feeding in, flows past the respective inlet opening to the floor, and the liquid phase is collected on the floor and then distributed to the tube bundle, and the gaseous phase is introduced into the through the inlet opening below the respective roof assigned chimney (in particular inner chimney, outer chimney, first chimney or second chimney) is introduced and from there is guided through the floor through the floor to the tube bundle.

Gemäß einer Ausführungsform des erfindungsgemäßen Verfahrens ist vorgesehen, dass die Kamine so ausgelegt sind, dass auch bei hoher Flüssigkeitslast Flüssigkeit nicht über die Einlassöffnungen in die Kamine einströmt.According to one embodiment of the method according to the invention, it is provided that the chimneys are designed in such a way that liquid does not flow into the chimneys via the inlet openings, even with a high liquid load.

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

Es zeigen:

Fig. 1
eine schematische Darstellung der Trennung einer flüssigen von einer gasförmigen Phase eines auf ein Rohrbündel zu verteilenden zweiphasigen Mediums;
Fig. 2
eine schematische Schnittdarstellung einer Ausführungsform eines erfindungsgemäßen gewickelten Wärmeübertragers;
Fig. 3
eine schematische Schnittdarstellung einer weiteren Ausführungsform eines erfindungsgemäßen gewickelten Wärmeübertragers;
Fig. 4
eine schematische Schnittdarstellung einer weiteren Ausführungsform eines erfindungsgemäßen gewickelten Wärmeübertragers; und
Fig. 5
zeigt beispielhaft einen Flüssigkeitsverteiler, der zum Verteilen der mit einer erfindungsgemäßen Trenneinrichtung abgetrennten flüssigen Phase verwendet werden kann.
Show it:
Fig. 1
a schematic representation of the separation of a liquid from a gaseous phase of a two-phase medium to be distributed on a tube bundle;
Fig. 2
is a schematic sectional view of an embodiment of a wound heat exchanger according to the invention;
Fig. 3
is a schematic sectional view of a further embodiment of a wound heat exchanger according to the invention;
Fig. 4
is a schematic sectional view of a further embodiment of a wound heat exchanger according to the invention; and
Fig. 5
shows an example of a liquid distributor that can be used to distribute the liquid phase separated with a separation device according to the invention.

Figur 1 stellt in einer schematischen Schnittansicht die grundlegende Aufgabe der Verteilung eines zweiphasigen ersten Mediums M in einem gewickelten Wärmeübertrager 1 dar. Hierzu wird erfindungsgemäß eine Trenneinrichtung 2 verwendet, die eine gasförmige Phase G von einer flüssigen Phase F des ersten Mediums M trennt. Hiernach kann in der Folge die flüssige Phase F sowie die gasförmige Phase G jeweils separat und gleichmäßig verteilt auf das unter der Trenneinrichtung 2 angeordnete Rohrbündel 3 des gewickelten Wärmeübertrager 1 gegeben werden, in dem ein zweites Medium M' geführt wird, so dass die beiden Medien M, M' indirekt Wärme austauschen können. Wie oben bereits dargelegt, können rohrseitig auch mehrere Medium separat geführt werden, die dann mit dem ersten Medium M Wärme indirekt austauschen können. Figure 1 presents in a schematic sectional view the basic task of distributing a two-phase first medium M in a wound Heat exchanger 1. For this purpose, a separation device 2 is used according to the invention, which separates a gaseous phase G from a liquid phase F of the first medium M. Thereafter, the liquid phase F and the gaseous phase G can each be separately and evenly distributed onto the tube bundle 3 of the wound heat exchanger 1 arranged under the separating device 2, in which a second medium M 'is guided, so that the two media M, M 'can exchange heat indirectly. As already explained above, several mediums can also be guided separately on the pipe side, which can then exchange heat indirectly with the first medium M.

In den Ausführungsformen gemäß Figuren 2 bis 4 weist der gewickelte Wärmeübertrager 1 jeweils einen vorzugsweise zumindest abschnittsweise zylindrischen Mantel 5 auf, der einen Mantelraum 6 des Wärmeübertrager 1 umgibt sowie ein in dem Mantelraum 6 angeordnetes Rohrbündel 3, das mehrere Rohre 30 aufweisen kann, die helikal auf ein Kernrohr 300 gewickelt sein können, wobei das Kernrohr 300 insbesondere koaxial zu einer Längsachse z des Wärmeübertragers 1 bzw. des Mantels 5 angeordnet ist, entlang der sich der Mantel 5 erstreckt. Die besagte Längsachse z verläuft vorzugsweise parallel zur Vertikalen. Weiterhin weist der gewickelte Wärmeübertrager 1 gemäß den Figuren 2 bis 4 jeweils einen Einlass 7 zum Einlassen des zweiphasigen ersten Mediums M in den Mantelraum 6 oberhalb eines Bodens 4 einer Trenneinrichtung 2 auf, die zum Trennen der gasförmigen und der flüssigen Phase G, F des ersten Mediums M konfiguriert ist, so dass die beiden Phasen F, G separat auf das Rohrbündel 3 verteilt werden können. Der Boden 4 verläuft dabei horizontal bzw. senkrecht zur Längsachse z und ist oberhalb des Rohrbündels 3 angeordnet, wobei er sich vorzugsweise über die gesamte Querschnittsfläche des Mantelraums 6 senkrecht zur Längsachse z erstreckt und hierbei den Mantelraum 6 in zwei Abschnitte unterteilt.In the embodiments according to Figures 2 to 4 The wound heat exchanger 1 each has a jacket 5, which is preferably cylindrical at least in sections, which surrounds a jacket space 6 of the heat exchanger 1 and a tube bundle 3 arranged in the jacket space 6, which can have a plurality of tubes 30, which can be helically wound on a core tube 300, wherein the core tube 300 is arranged in particular coaxially to a longitudinal axis z of the heat exchanger 1 or the jacket 5, along which the jacket 5 extends. Said longitudinal axis z preferably runs parallel to the vertical. Furthermore, the wound heat exchanger 1 according to the Figures 2 to 4 each have an inlet 7 for inlet of the two-phase first medium M into the jacket space 6 above a bottom 4 of a separating device 2, which is configured to separate the gaseous and the liquid phases G, F of the first medium M, so that the two phases F, G can be distributed separately on the tube bundle 3. The bottom 4 runs horizontally or perpendicular to the longitudinal axis z and is arranged above the tube bundle 3, it preferably extending over the entire cross-sectional area of the jacket space 6 perpendicular to the longitudinal axis z and thereby dividing the jacket space 6 into two sections.

In allen Ausführungsformen gemäß Fig. 2 bis 4 dient der Boden 4 vorzugsweise zum Sammeln der flüssigen Phase F und ist bevorzugt mit einem Flüssigkeitsverteiler 4a über eine geeignete Strömungsverbindung S strömungsverbunden, wobei der Flüssigkeitsverteiler 4a dazu konfiguriert ist, die flüssige Phase F auf das Rohrbündel 3 zu verteilen, wobei die flüssige Phase F das Rohrbündel z.B. von oben beaufschlagt. Als Flüssigkeitsverteiler 4a können die oben bereits beschriebenen Einrichtungen verwendet werden. Von den verschiedenen Möglichkeiten zeigt Fig. 5 beispielhaft eine Ausführungsform eines Flüssigkeitsverteilers 4a, der mit allen Ausführungsformen der erfindungsgemäßen Trenneinrichtung 2 (z.B. nach den Figuren 2 bis 4) verwendet werden kann. Gemäß Figur 5 ist der Boden 4 der Trenneinrichtung 2 mittels einer geeigneten Strömungsverbindung S mit dem Kernrohr 300 des Wärmeübertragers 1 verbunden, so dass auf dem Boden 4 gesammelte flüssige Phase F in das Kernrohr 300 gelangen kann. Auf dem Boden 4 gemäß Figur 5 sind die Kamine 50, 60, 70 der jeweiligen Ausführungsform (wie gezeigt in den Figuren 2 bis 4, siehe unten) vorgesehen, wobei die Kamine hier der Übersichtlichkeit halber nicht dargestellt sind. Der Flüssigkeitsverteiler 4a gemäß Figur 5 weist nun unterhalb des Bodens 4a der Trenneinrichtung 2 sowie oberhalb des Rohrbündels 3 eine Mehrzahl an Armen 4b auf, die mit dem Kernrohr 300 in Strömungsverbindung stehen und dazu ausgebildet sind, die flüssige Phase F auf des Rohrbündel 3 zu verteilen, das unterhalb der Arme 4b angeordnet ist. Die Arme 4b erstrecken sich ausgehend vom Kernrohr 300 insbesondere jeweils in radialer Richtung nach außen zum Mantel 5 hin, wobei zwischen benachbarten Armen 4b Lücken vorgesehen sind, durch die die Rohre 30 des Rohrbündels 3 in sogenannten Zöpfen 31 zusammengefasst an den Armen 4b vorbei nach oben geführt werden, wobei sie z.B. unterhalb des Bodens 4 in lateral am Mantel 5 vorgesehene Stutzen 32 münden.In all embodiments according to 2 to 4 the bottom 4 is preferably used to collect the liquid phase F and is preferably fluidly connected to a liquid distributor 4a via a suitable flow connection S, the liquid distributor 4a being configured to distribute the liquid phase F over the tube bundle 3, the liquid phase F being the Pipe bundle, for example, applied from above. The devices already described above can be used as the liquid distributor 4a. Shows of the different possibilities Fig. 5 exemplary one Embodiment of a liquid distributor 4a, which with all embodiments of the separation device 2 according to the invention (for example according to the Figures 2 to 4 ) can be used. According to Figure 5 the bottom 4 of the separating device 2 is connected to the core tube 300 of the heat exchanger 1 by means of a suitable flow connection S, so that liquid phase F collected on the bottom 4 can get into the core tube 300. On the floor 4 according to Figure 5 are the fireplaces 50, 60, 70 of the respective embodiment (as shown in FIGS Figures 2 to 4 , see below) provided, the chimneys are not shown here for the sake of clarity. The liquid distributor 4a according to Figure 5 now has a plurality of arms 4b below the bottom 4a of the separating device 2 and above the tube bundle 3, which arms are in flow connection with the core tube 300 and are designed to distribute the liquid phase F on the tube bundle 3 which is below the arms 4b is arranged. The arms 4b extend, starting from the core tube 300, in particular in each case in the radial direction outwards to the jacket 5, gaps being provided between adjacent arms 4b, through which the tubes 30 of the tube bundle 3 are combined in so-called braids 31 past the arms 4b upwards be guided, where they open, for example, below the bottom 4 in laterally provided on the jacket 5 nozzle 32.

Alternativ zu einem separaten Flüssigkeitsverteiler 4a (z.B. nach Art der Figur 5 oder wie in den Figuren 2 bis 4 angedeutet) kann in allen Ausführungsformen auch die Trenneinrichtung 2 selbst als Flüssigkeitsverteiler fungieren. Hierzu kann der Boden 4 eine Vielzahl an insbesondere gleichmäßig über den Boden 4 verteilten Öffnungen 40a aufweisen, über die die flüssige Phase F dann jeweils auf das Rohrbündel 3 aufgegeben wird. Auf einen gesonderten Flüssigkeitsverteiler 4a kann dann verzichtet werden.As an alternative to a separate liquid distributor 4a (eg according to the type of Figure 5 or like in the Figures 2 to 4 indicated), the separating device 2 itself can also function as a liquid distributor in all embodiments. For this purpose, the base 4 can have a multiplicity of openings 40a, in particular distributed uniformly over the base 4, through which the liquid phase F is then applied to the tube bundle 3. A separate liquid distributor 4a can then be dispensed with.

Gemäß dem in der Figur 2 gezeigten Ausführungsbeispiel der vorliegenden Erfindung weist der Boden 4 zum Trennen der beiden Phasen F, G des ersten Mediums M eine Mehrzahl an Durchgangsöffnungen 40 auf, durch die hindurch die gasförmige Phase G auf das Rohrbündel 3 verteilbar ist. Hierzu stehen die Durchgangsöffnungen 40 mit jeweils einem zugeordneten Kamin 50 in Strömungsverbindung, wobei der jeweilige Kamin 50 vorzugsweise durch eine umlaufende zylindrische Wandung 50 gebildet ist, bei der es sich bevorzugt um eine geschlossene Wandung handelt, die keine Durchbrüche aufweist, und die von einem umlaufenden Randbereich der jeweiligen Durchgangsöffnung 40 in Richtung einer Achse L des jeweiligen Kamins 50 von einer dem Rohrbündel 3 abgewandten Seite des Bodens 4 nach oben absteht, sodass die jeweilige Durchgangsöffnung 40 eine nach unten gerichtete, dem Rohrbündel 3 zugewandte Auslassöffnung 40 des jeweiligen Kamins 50 bildet. Die Achsen L der Kamine 50 sind vorzugsweise Zylinderachsen L, die parallel zur Längsachse z des Wärmeübertragers 1 bzw. Mantels 5 verlaufen.According to the in the Figure 2 In the embodiment of the present invention shown, the bottom 4 has a plurality of through openings 40 for separating the two phases F, G of the first medium M, through which the gaseous phase G can be distributed onto the tube bundle 3. For this purpose, the through openings 40 are each in flow connection with an associated chimney 50, the respective chimney 50 preferably being formed by a circumferential cylindrical wall 50, which is preferably a closed wall that has no openings, and that of a circumferential one Edge area of each Through opening 40 protrudes upwards in the direction of an axis L of the respective chimney 50 from a side of the base 4 facing away from the tube bundle 3, so that the respective through opening 40 forms a downward-pointing outlet opening 40 of the respective chimney 50 facing the tube bundle 3. The axes L of the chimneys 50 are preferably cylinder axes L, which run parallel to the longitudinal axis z of the heat exchanger 1 or jacket 5.

Der jeweilige Kamin 50 weist weiterhin an einem oberen Ende eine Einlassöffnung 51 auf, die der jeweiligen Auslassöffnung 40 in Richtung der jeweiligen Achse L gegenüberliegt und dabei jeweils von einem Dach 52 überdacht ist, so dass ein umlaufender Spalt zwischen dem jeweiligen Dach 52 und dem darunter angeordneten Kamin 50 gebildet wird. Die flüssige Phase F, die von oben auf den Boden 4 bzw. die Trenneinrichtung 2 gegeben wird kann nun vom jeweiligen Dach 52 an der jeweiligen Einlassöffnung 51 bzw. dem jeweiligen umlaufenden Spalt vorbei auf den Boden 4 abfließen, wo sie gesammelt wird, um dann separat von der gasförmigen Phase G auf das Rohrbündel 3 verteilt zu werden, z.B. mittels des Flüssigkeitsverteilers 4a, der im Einzelnen z.B. gemäß Figur 5 ausgebildet sein kann, wohingegen die gasförmige Phase G über den jeweiligen Spalt bzw. die unterhalb des jeweiligen Daches 52 gelegene Einlassöffnung 51 in den zugeordneten Kamin 50 eintreten und von dort über die zugeordnete Durchgangsöffnung bzw. Auslassöffnung 40 durch den Boden 4 hindurch auf das Rohrbündel 3 führbar ist. Wie bereits dargelegt, kann auf einen Flüssigkeitsverteiler 4a auch verzichtet werden. In diesem Fall kann die flüssige Phase F über Öffnungen 40a im Boden 4 auf das Rohrbündel 3 verteilt werden.The respective chimney 50 furthermore has an inlet opening 51 at an upper end, which is opposite the respective outlet opening 40 in the direction of the respective axis L and is in each case covered by a roof 52, so that a circumferential gap between the respective roof 52 and the one below it arranged fireplace 50 is formed. The liquid phase F, which is applied to the bottom 4 or the separating device 2 from above, can now flow from the respective roof 52 past the respective inlet opening 51 or the respective circumferential gap to the bottom 4, where it is collected, and then to be distributed separately from the gaseous phase G to the tube bundle 3, for example by means of the liquid distributor 4a, which in detail, for example, according to Figure 5 can be formed, whereas the gaseous phase G enters the associated chimney 50 via the respective gap or the inlet opening 51 located below the respective roof 52 and from there via the assigned passage opening or outlet opening 40 through the base 4 to the tube bundle 3 is feasible. As already explained, a liquid distributor 4a can also be dispensed with. In this case, the liquid phase F can be distributed to the tube bundle 3 via openings 40a in the base 4.

Wie weiterhin in der Figur 2 gezeigt ist, sind die Dächer 52 in Richtung der Längsachse z des gewickelten Wärmeübertragers 1 bzw. Mantels 5 vorzugsweise auf gleicher Höhe angeordnet und weisen jeweils einen umlaufenden Randbereich 52a mit einer umlaufenden, ringförmigen Unterkante 52b auf, die bezogen auf die Längsachse z auf Höhe oder unterhalb einer umlaufenden Stirnseite 50a des jeweiligen Kamins 50 verläuft, die die Einlassöffnung 51 des jeweiligen Kamins 50 berandet. Dabei ist weiterhin vorgesehen, dass das Dach 52 des jeweiligen Kamins 50 senkrecht zur Achse L des jeweiligen Kamins 50 mit dem umlaufenden Randbereich 52a über den zugeordneten Kamin 50 hinausragt. Hierdurch wird sichergestellt, dass nach Möglichkeit kein flüssiger Anteil F des ersten Mediums M in den jeweiligen Kamin 50 gelangen kann. Weiterhin wird hierdurch die gasförmige Phase G entlang ihres Strömungspfades in Richtung auf das Rohrbündel 3 mehrfach umgelenkt, was die Trennung der flüssigen Phase F von der gasförmigen Phase G verbessert.As continues in the Figure 2 is shown, the roofs 52 are preferably arranged at the same height in the direction of the longitudinal axis z of the wound heat exchanger 1 or jacket 5 and each have a circumferential edge region 52a with a circumferential, ring-shaped lower edge 52b, which in relation to the longitudinal axis z is at height or runs below a peripheral end face 50a of the respective chimney 50, which borders the inlet opening 51 of the respective chimney 50. It is further provided that the roof 52 of the respective chimney 50 projects perpendicularly to the axis L of the respective chimney 50 with the peripheral edge area 52a over the associated chimney 50. This ensures that, if possible, no liquid portion F of the first medium M can get into the respective chimney 50. Furthermore, the gaseous phase G is thereby along its Flow paths in the direction of the tube bundle 3 deflected several times, which improves the separation of the liquid phase F from the gaseous phase G.

Figur 3 zeigt eine weitere Ausführungsform eines erfindungsgemäßen gewickelten Wärmeübertragers 1, bei dem die einzelnen Kamine 50, 70 grundsätzlich nach Art der Figur 2 ausgebildet sind, wobei nun im Unterschied zur Figur 2 erste Kamine 50 vorhanden sind, die entlang der jeweiligen Achse L eine geringere Höhe über dem Boden 4 aufweisen, als zweite Kamine 70. Dabei sind die ersten und zweiten Kamine 50, 70 alternierend angeordnet, sodass aufgrund der unterschiedlichen Höhe der jeweiligen Dächer 52,72 eine größere Anzahl von Kaminen 50, 70 pro Fläche auf dem Boden 4 anordenbar sind. Dies wird insbesondere dadurch deutlich, dass bei dieser Anordnung von Kaminen 50, 70 unterschiedlicher Länge der Abstand A eines zweiten Kamins 70 zum Dach 52 eines benachbarten ersten Kamins 50 senkrecht zur Achse L des zweiten Kamins 70 kleiner ist als der Überstand A' des Daches 52 des benachbarten ersten Kamins 50 über den besagten ersten Kamin 50. Bei Dächern 52, 72 gleicher Höhe würde entsprechend der Abstand zwischen zwei benachbarten Kaminen 50, 70 senkrecht zu deren Achsen L größer ausfallen. Im Einzelnen sind die ersten und zweiten Kamine 50, 70, abgesehen von der unterschiedlichen Länge, entsprechend dem Ausführungsbeispiel der Figur 2 ausgestaltet. Figure 3 shows a further embodiment of a wound heat exchanger 1 according to the invention, in which the individual chimneys 50, 70 basically according to the type of Figure 2 are trained, now in contrast to Figure 2 there are first chimneys 50, which have a lower height above the floor 4 along the respective axis L than second chimneys 70. The first and second chimneys 50, 70 are arranged alternately, so that due to the different heights of the respective roofs 52, 72 a larger number of chimneys 50, 70 can be arranged on the floor 4 per surface. This is particularly evident from the fact that with this arrangement of chimneys 50, 70 of different lengths, the distance A from a second chimney 70 to the roof 52 of an adjacent first chimney 50 perpendicular to the axis L of the second chimney 70 is smaller than the overhang A 'of the roof 52 of the adjacent first chimney 50 via said first chimney 50. In the case of roofs 52, 72 of the same height, the distance between two adjacent chimneys 50, 70 would be larger perpendicular to their axes L. In detail, the first and second chimneys 50, 70, apart from the different lengths, are in accordance with the exemplary embodiment in FIG Figure 2 designed.

Schließlich zeigt Figur 4 ein weiteres Ausführungsbeispiel eines erfindungsgemäßen gewickelten Wärmeübertragers 1, bei dem die Kamine 50 nach Art der Figur 2 ausgebildet sind, wobei nunmehr zusätzlich in dem jeweiligen Kamin 50, der hier als Außenkamin ausgebildet ist, ein Innenkamin 60 angeordnet ist, der sich durch das Dach 52 des jeweiligen Außenkamins 50 hindurch erstreckt und mit einem oberen Abschnitt 63 vom jeweiligen Dach 52 absteht, wobei der obere Abschnitt 63 des jeweiligen Innenkamins 60 eine Einlassöffnung 61 aufweist, die wiederum von einem Dach 62 des jeweiligen Innenkamins 60 überdacht ist, so dass sich wieder ein umlaufender Spalt zwischen dem jeweiligen Dach 62 und dem darunter angeordneten Innenkamin 60 ergibt.Finally shows Figure 4 a further embodiment of a wound heat exchanger 1 according to the invention, in which the chimneys 50 in the manner of Figure 2 are formed, an internal chimney 60 is now additionally arranged in the respective chimney 50, which is designed here as an outer chimney, which extends through the roof 52 of the respective outer chimney 50 and projects with an upper section 63 from the respective roof 52, whereby the upper section 63 of the respective inner chimney 60 has an inlet opening 61, which in turn is covered by a roof 62 of the respective inner chimney 60, so that there is again a circumferential gap between the respective roof 62 and the inner chimney 60 arranged underneath.

Auch die Innenkamine 60 können jeweils durch eine umlaufende zylindrische Wandung 60 gebildet sein, die sich im jeweils umgebenden Außenkamin 50 nach unten hin bis auf Höhe der jeweiligen Durchgangsöffnung 40 des Bodens 4 erstrecken kann, so dass eine untere Auslassöffnung 41 des jeweiligen Innenkamins 60, die dem Rohrbündel 3 zugewandt ist, in der Öffnungsebene der jeweiligen Durchgangsöffnung 40 liegt.The inner chimneys 60 can also each be formed by a circumferential cylindrical wall 60 which can extend downwards in the surrounding outer chimney 50 to the level of the respective through opening 40 of the base 4, so that a lower outlet opening 41 of the respective inner chimney 60, which faces the tube bundle 3, lies in the opening plane of the respective passage opening 40.

Entsprechend kann die flüssige Phase F eines von oben her auf die Trenneinrichtung 2 bzw. den Boden 4 aufgegebenen ersten Mediums M nunmehr vom Dach 62 des jeweiligen Innenkamins 60 an dem Spalt bzw. der Einlassöffnung 61 des jeweiligen Innenkamins 60 vorbei auf das Dach 52 des jeweils zugeordneten Außenkamins 50 und von dort auf den Boden 4 abfließen, wo sie gesammelt und auf das Rohrbündel 3 weiterverteilt werden kann. Die gasförmige Phase G hingegen kann weiterhin über die ringförmigen Einlassöffnungen 51 in dem jeweiligen Außenkamin 50 entlang des koaxialen Innenkamins 60 über die jeweilige Durchgangs- bzw. Auslassöffnung 40 auf das Rohrbündel 3 geführt werden, wobei aufgrund der Innenkamine 60 nunmehr ein zusätzlicher Strömungspfad für die gasförmige Phase G pro Außenkamin 50 vorhanden ist, da die gasförmige Phase G nun auch über die unterhalb des Daches 62 des jeweiligen Innenkamins 60 gelegene Einlassöffnung 61 des jeweiligen Innenkamins 60 in den jeweiligen Innenkamin 60 und von dort über die Auslassöffnung 41 des jeweiligen Innenkamins auf das Rohrbündel 3 führbar ist.Accordingly, the liquid phase F of a first medium M applied to the separating device 2 or the bottom 4 from above can now pass from the roof 62 of the respective inner chimney 60 past the gap or the inlet opening 61 of the respective inner chimney 60 onto the roof 52 of the respective assigned outer chimney 50 and flow from there to the floor 4, where it can be collected and distributed to the tube bundle 3. The gaseous phase G, on the other hand, can continue to be conducted via the ring-shaped inlet openings 51 in the respective outer chimney 50 along the coaxial inner chimney 60 via the respective passage or outlet opening 40 to the tube bundle 3, with an additional flow path for the gaseous one now due to the inner chimneys 60 Phase G is present per outer chimney 50, since the gaseous phase G is now also in the respective inner chimney 60 via the inlet opening 61 of the respective inner chimney 60 located below the roof 62 of the respective inner chimney 60 and from there via the outlet opening 41 of the respective inner chimney onto the tube bundle 3 is feasible.

Wie bereits weiter oben dargelegt, weist bevorzugt auch das Dach 62 des jeweiligen Innenkamins 60 einen umlaufenden Randbereich 62a auf, mit einer ringförmigen, nach unten weisenden Unterkante 62b, die auf Höhe oder unterhalb einer umlaufenden, nach oben weisenden Stirnseite 60a des oberen Abschnitts 63 des jeweiligen Innenkamins 60 verläuft, die die Einlassöffnung 61 des jeweiligen Innenkamins 60 berandet.As already explained further above, the roof 62 of the respective inner chimney 60 preferably also has a peripheral edge region 62a, with an annular, bottom-facing lower edge 62b, which is at the level or below a peripheral, upward-facing end face 60a of the upper section 63 of the each inner chimney 60, which borders the inlet opening 61 of the respective inner chimney 60.

Aufgrund der koaxialen Anordnung von Außenkaminen 50 und Innenkaminen 60 ist es gemäß Figur 4 mit Vorteil möglich, die Trenneinrichtung 2 auch in Mantelabschnitten 5a des Mantels 5 unterzubringen, deren Durchmesser bzw. Umfang sich in Richtung der Längsachse z nach oben hin kontinuierlich verringert. Bezugszeichenliste 1 Wärmeübertrager 2 Trenneinrichtung 3 Rohrbündel 4 Boden 4a Flüssigkeitsverteiler 4b Arme 5 Mantel 6 Mantelraum 7 Einlass 30 Rohre 31 Zöpfe 32 Stutzen 40 Durchgangsöffnungen 40a Optionale Öffnungen zum Verteilen der flüssigen Phase 41 Auslassöffnung 50, 70 Kamin 50a, 70a Stirnseite 51, 61, 71 Einlassöffnung 52, 62, 72 Dach 52a, 62a, 72a Randbereich 52b, 62b, 72b Unterkante 60 Innenkamin 63 Obere Abschnitt 300 Kernrohr A Abstand A' Überstand F Flüssige Phase G Gasförmige Phase M erstes Medium M' zweites Medium L Achse S Strömungsverbindung Z Längsachse Due to the coaxial arrangement of outer chimneys 50 and inner chimneys 60, it is in accordance with Figure 4 advantageously possible to accommodate the separating device 2 also in jacket sections 5a of the jacket 5, the diameter or circumference of which continuously decreases upwards in the direction of the longitudinal axis z. <B> LIST OF REFERENCES </ b> 1 Heat exchanger 2 separator 3 tube bundle 4 ground 4a liquid distributor 4b poor 5 coat 6 shell space 7 inlet 30 Tube 31 pigtails 32 Support 40 Through openings 40a Optional openings to distribute the liquid phase 41 outlet 50, 70 stack 50a, 70a front 51, 61, 71 inlet port 52, 62, 72 top, roof 52a, 62a, 72a border area 52b, 62b, 72b lower edge 60 inside fireplace 63 Upper section 300 core tube A distance A ' Got over F Liquid phase G Gaseous phase M first medium M ' second medium L axis S flow connection Z longitudinal axis

Claims (15)

  1. Helically coiled heat exchanger (1) for the indirect exchange of heat between a two-phase first medium (M) and a second medium (M'), having
    - a shell (5) which surrounds a shell space (6) and which extends along a longitudinal axis (z),
    - an inlet (7) for the admission of the two-phase first medium (M) into the shell space (6),
    - a tube bundle (3) which is arranged in the shell space (6) and which has multiple tubes (30) for accommodating the second medium (M'), which tubes are helically coiled about the longitudinal axis (z), and
    - a separating device (2) for separating a gaseous phase (G) from a liquid phase (F) of the two-phase first medium (M),
    characterized
    in that the separating device (2) has a tray (4) which is arranged above the tube bundle (3) and which serves for collecting the liquid phase (F), wherein the tray (4) has a plurality of chimneys (50, 70) for the purpose of separating the two phases (F, G), wherein the respective chimney (50, 70) projects from the tray (4) from a side of the tray (4) facing away from the tube bundle (3), is covered by a roof (52, 72) and opens into a passage opening (40) in the tray (4), wherein furthermore, between the respective roof (52, 72) and an upper end of the respective chimney (50, 70), there is provided an inlet opening (51, 71) via which the gaseous phase (G) can flow into the respective chimney (50, 70).
  2. Helically coiled heat exchanger according to Claim 1, characterized in that the tray (4) has, in addition to the passage openings (40), a plurality of openings (40a) for the uniform distribution of the liquid phase (F) over the tube bundle.
  3. Helically coiled heat exchanger according to Claim 1, characterized in that the helically coiled heat exchanger (1) has a liquid distributor (4a) below the tray (4) for the purpose of distributing the liquid phase (F) over the tube bundle (3), wherein the tray (4) is in flow connection with the liquid distributor (4a), situated therebelow, such that the liquid phase (F) can pass from the tray (4) into the liquid distributor (4a).
  4. Heat exchanger according to one of the preceding claims, characterized in that the roof (52, 72) of the respective chimney (50, 70) has an encircling edge region (52a, 72a) with a bottom edge (52b, 72b) which runs at the height of or below an encircling end side (50a, 70a) of the respective chimney (50, 70), which end side bounds the inlet opening (51, 71) of the respective chimney (50, 70).
  5. Heat exchanger according to one of the preceding claims, characterized in that the chimneys (50, 70) each extend along an axis (L) which runs perpendicular to the tray (4).
  6. Heat exchanger according to Claims 4 and 5, characterized in that the roof (52, 72) of the respective chimney (50, 70) projects, with the encircling edge region (52a, 72a), beyond the associated chimney (50, 70) perpendicular to the axis (L) of the respective chimney (50, 70).
  7. Heat exchanger according to one of the preceding claims, characterized in that at least one chimney (50) is formed as an outer chimney (50), wherein an inner chimney (60) is arranged in the at least one outer chimney (50), which inner chimney extends upward through the roof (52) of the outer chimney (50) and extends, with an upper portion (63), beyond the roof (52) of the outer chimney (50), wherein the upper portion (63) of the inner chimney (60) has an inlet opening (61) which is in turn covered by a roof (62) of the inner chimney (60) such that the liquid phase (F) can flow off the roof (62) of the inner chimney (60) past the inlet opening (61) of the inner chimney (60) onto the roof (52) of the at least one outer chimney (50) and, from there, onto the tray (4), and such that the gaseous phase (G) is additionally able to be conducted via the inlet opening (61) of the inner chimney (60), situated below the roof (62) of the inner chimney (60), into the inner chimney (60) and, from there, to the tube bundle (3).
  8. Heat exchanger according to Claim 7, characterized in that the roof (62) of the inner chimney (60) has an encircling edge region (62a) with a bottom edge (62b) which runs at the height of or below an encircling end side (60a) of the upper portion (63) of the inner chimney (60), which end side bounds the inlet opening (61) of the inner chimney (60).
  9. Heat exchanger according to Claim 5 and according to Claim 7 or 8, characterized in that the inner chimney (60) extends along the axis (L) of the at least one associated outer chimney (50).
  10. Heat exchanger according to Claims 8 and 9, characterized in that the roof (62) of the inner chimney (60) projects, with the encircling edge region (62a), beyond the inner chimney (60) perpendicular to the axis (L) of the inner chimney (60) .
  11. Heat exchanger according to Claim 7 or one of Claims 8 to 10, where referring back to Claim 7, characterized in that the inner chimney (60) is arranged coaxially with respect to the associated at least one outer chimney (50).
  12. Heat exchanger according to Claim 5 or 6, characterized in that the chimneys (50, 70) form a group of first chimneys (50) and a group of second chimneys (70), wherein the second chimneys (70) have, along their respective axis (L), a larger height above the tray (4) than the first chimneys (50) .
  13. Heat exchanger according to Claim 12, characterized in that the spacing (A) of a second chimney (70) to the roof (52) of an adjacent first chimney (50) perpendicular to the axis (L) of the second chimney (70) is smaller than a protrusion (A') of the roof (52) of the adjacent first chimney (50) beyond said first chimney (50) perpendicular to the axis (L) of said first chimney (50).
  14. Heat exchanger according to Claim 10 or 11, characterized in that the first and second chimneys (50, 70) are arranged alternately along the tray (4), such that preferably a second chimney (70) is arranged between in each case two adjacent first chimneys (50) or a first chimney (50) is arranged between in each case two adjacent second chimneys (70) .
  15. Method for separating a gaseous phase (G) from a liquid phase (F) of a two-phase first medium (M) and for exchanging heat between the first medium (M) and a second medium (M') through the use of a helically coiled heat exchanger (1) according to one of the preceding claims, wherein the first medium (M), having the liquid and the gaseous phases (F, G), is fed into the shell space (6) via the inlet (7), wherein the liquid phase (F), when impinging on a roof (52, 72) during the feeding, flows off past the respective inlet opening (51, 71) onto the tray (4), and wherein the liquid phase (F) is collected on the tray (4) and subsequently distributed over the tube bundle (3), and wherein the gaseous phase (G) is introduced via the inlet opening situated below the respective roof (52, 62, 72) into the associated chimney (50, 60, 70) and, from there, is conducted via the associated passage opening (40) through the tray (4) to the tube bundle (3).
EP17712923.6A 2016-03-16 2017-03-15 Separating device for wound heat exchangers for separating a gaseous phase from a liquid phase of a two-phase medium conveyed over the sheath Active EP3430338B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
EP16000628 2016-03-16
PCT/EP2017/025050 WO2017157535A1 (en) 2016-03-16 2017-03-15 Separating device for coiled heat exchangers for separating a gaseous phase from a liquid phase of a two-phase medium conveyed on the jacket side

Publications (2)

Publication Number Publication Date
EP3430338A1 EP3430338A1 (en) 2019-01-23
EP3430338B1 true EP3430338B1 (en) 2019-12-18

Family

ID=55646208

Family Applications (1)

Application Number Title Priority Date Filing Date
EP17712923.6A Active EP3430338B1 (en) 2016-03-16 2017-03-15 Separating device for wound heat exchangers for separating a gaseous phase from a liquid phase of a two-phase medium conveyed over the sheath

Country Status (5)

Country Link
US (1) US10982905B2 (en)
EP (1) EP3430338B1 (en)
CN (1) CN108779961B (en)
RU (1) RU2724413C2 (en)
WO (1) WO2017157535A1 (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102018000468A1 (en) * 2018-01-22 2019-07-25 Linde Aktiengesellschaft Coiled heat exchanger with separator in the core tube
EP3719433A1 (en) * 2019-04-02 2020-10-07 Linde GmbH Adjustable liquid distributor of a coiled heat exchanger for implementing different liquid loads
FR3100320B1 (en) * 2019-09-02 2022-02-18 Air Liquide Distribution device for a gas/liquid separation column
CN113280650B (en) * 2021-07-22 2021-09-24 四川空分设备(集团)有限责任公司 Gas-liquid two-phase fluid uniform distribution device

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5724828A (en) * 1995-04-21 1998-03-10 Baltimore Aircoil Company, Inc. Combination direct and indirect closed circuit evaporative heat exchanger with blow-through fan
RU2081663C1 (en) * 1995-11-01 1997-06-20 Закрытое акционерное общество Нефтегазовой компании "Черногорнефтегаз" Heat- and mass-transfer apparatus
US6098965A (en) * 1996-06-04 2000-08-08 Fluor Corporation Reactor distribution apparatus and quench zone mixing apparatus
DE102004040974A1 (en) * 2004-08-24 2006-03-02 Linde Ag Coiled heat exchanger
DE102007019816A1 (en) * 2007-04-26 2008-10-30 Linde Ag Collector-distributor combination
US8517353B2 (en) * 2010-09-27 2013-08-27 Uop Llc Apparatus and process for distributing vapor and liquid phases
DE102010055452A1 (en) 2010-12-21 2012-06-21 Linde Aktiengesellschaft Flow guide device for use in manhole of sloping fluid channel of fluid distributor for wound heat exchanger for guiding fluid flow, has flow breaker dividing fluid flow into fluid flows so that fluid flows unblock passage opening for gas
DE102011017030A1 (en) 2011-04-14 2012-10-18 Linde Ag Heat exchanger with core tube and ring channel
DE102012000146A1 (en) 2012-01-05 2013-07-11 Linde Aktiengesellschaft Liquid distributor for distributing liquid on tube bundle of wound heat exchanger, has deflector element designed rotational symmetric to longitudinal axis of downpipe, and cladding line sectionally concavely curved
DE102012011329A1 (en) 2012-06-06 2013-12-12 Linde Aktiengesellschaft Washing column and process for washing a raw gas
US9004460B2 (en) * 2013-06-21 2015-04-14 Praxair Technology, Inc. Combined collector and distributor
PL2818821T3 (en) * 2013-06-27 2016-07-29 Linde Ag Coiled heat exchanger with core tube feed
EP3367033A1 (en) * 2017-02-24 2018-08-29 Linde Aktiengesellschaft Heat exchanger and method for distributing a liquid phase in a heat exchanger

Non-Patent Citations (1)

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

Also Published As

Publication number Publication date
US10982905B2 (en) 2021-04-20
US20190078842A1 (en) 2019-03-14
RU2018131445A (en) 2020-04-16
EP3430338A1 (en) 2019-01-23
WO2017157535A1 (en) 2017-09-21
RU2018131445A3 (en) 2020-04-23
CN108779961A (en) 2018-11-09
CN108779961B (en) 2020-05-29
RU2724413C2 (en) 2020-06-23

Similar Documents

Publication Publication Date Title
EP3430338B1 (en) Separating device for wound heat exchangers for separating a gaseous phase from a liquid phase of a two-phase medium conveyed over the sheath
DE60205645T2 (en) HEAT EXCHANGER FOR ISOTHERMIC CHEMICAL REACTOR
DE102013212286B4 (en) Plant for energy recovery from hot gases
EP2818821B1 (en) Coiled heat exchanger with core tube feed
EP3447425A1 (en) Inserts in a coiled heat exchanger for suppression of gas eddies
WO2017167458A1 (en) Wound heat exchanger
EP3128278B1 (en) Feeding and removal of pipe streams with interim temperature in coiled heat exchangers
EP3443287B1 (en) Coiled heat exchanger
DE102009050087B4 (en) Cyclone separator for the phase separation of a multiphase fluid flow, steam turbine plant with a cyclone separator and associated operating method
EP2157390B1 (en) Pipe heater, deflection curve for same, adapter for same, system and method for transferring heat between at least two food flows
DE102011017030A1 (en) Heat exchanger with core tube and ring channel
EP1940542A1 (en) Distribution device for a gas-liquid phase mixture for apparatus
WO2017194203A1 (en) Fluid collection device, material exchange column and method for producing a fluid collection device of this type
EP3367033A1 (en) Heat exchanger and method for distributing a liquid phase in a heat exchanger
EP3367034B1 (en) Heat exchanger and method for distributing a liquid phase in a heat exchanger
EP3145608B1 (en) Separating device and method for separating a gaseous from a liquid phase of a two-phase material flow
DE102018000468A1 (en) Coiled heat exchanger with separator in the core tube
CH662638A5 (en) HEAT TRANSFER SYSTEM, PREFERRED FOR A PROCESS GAS.
EP2037199A1 (en) Heat exchanger
DE2754021C2 (en) Standing superheater with water separator
DE102018002450A1 (en) Liquid distribution device and mass transfer column
DE102010047299A1 (en) Device e.g. feeding system, for coiled heat exchanger for liquefaction of natural gas in petrol-chemical system, has brake provided at wall and oriented such that stream partly impinges through unit for guiding and steering on brake
DE112012006995T5 (en) Headboard for an evaporator
DE2425539A1 (en) COMBINED MOISTURE SEPARATOR AND OVERHEATER
DE102016103719A1 (en) Device for fluid guidance

Legal Events

Date Code Title Description
STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: UNKNOWN

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE INTERNATIONAL PUBLICATION HAS BEEN MADE

PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: REQUEST FOR EXAMINATION WAS MADE

17P Request for examination filed

Effective date: 20180827

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

AX Request for extension of the european patent

Extension state: BA ME

DAV Request for validation of the european patent (deleted)
DAX Request for extension of the european patent (deleted)
GRAP Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOSNIGR1

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: GRANT OF PATENT IS INTENDED

INTG Intention to grant announced

Effective date: 20190731

GRAS Grant fee paid

Free format text: ORIGINAL CODE: EPIDOSNIGR3

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE PATENT HAS BEEN GRANTED

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

REG Reference to a national code

Ref country code: CH

Ref legal event code: EP

REG Reference to a national code

Ref country code: IE

Ref legal event code: FG4D

Free format text: LANGUAGE OF EP DOCUMENT: GERMAN

REG Reference to a national code

Ref country code: DE

Ref legal event code: R096

Ref document number: 502017003204

Country of ref document: DE

REG Reference to a national code

Ref country code: AT

Ref legal event code: REF

Ref document number: 1215073

Country of ref document: AT

Kind code of ref document: T

Effective date: 20200115

REG Reference to a national code

Ref country code: NL

Ref legal event code: MP

Effective date: 20191218

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: NO

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20200318

Ref country code: GR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20200319

Ref country code: SE

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20191218

Ref country code: BG

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20200318

Ref country code: FI

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20191218

Ref country code: LV

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20191218

Ref country code: LT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20191218

REG Reference to a national code

Ref country code: LT

Ref legal event code: MG4D

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: HR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20191218

Ref country code: RS

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20191218

RAP2 Party data changed (patent owner data changed or rights of a patent transferred)

Owner name: LINDE GMBH

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: AL

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20191218

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: PT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20200513

Ref country code: EE

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20191218

Ref country code: CZ

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20191218

Ref country code: NL

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20191218

Ref country code: RO

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20191218

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IS

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20200418

Ref country code: SM

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20191218

Ref country code: SK

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20191218

REG Reference to a national code

Ref country code: DE

Ref legal event code: R097

Ref document number: 502017003204

Country of ref document: DE

REG Reference to a national code

Ref country code: DE

Ref legal event code: R119

Ref document number: 502017003204

Country of ref document: DE

PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: DK

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20191218

Ref country code: MC

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20191218

Ref country code: ES

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20191218

REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

26N No opposition filed

Effective date: 20200921

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SI

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20191218

REG Reference to a national code

Ref country code: BE

Ref legal event code: MM

Effective date: 20200331

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: LU

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20200315

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20191218

Ref country code: CH

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20200331

Ref country code: DE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20201001

Ref country code: LI

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20200331

Ref country code: IE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20200315

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: BE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20200331

Ref country code: PL

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20191218

GBPC Gb: european patent ceased through non-payment of renewal fee

Effective date: 20210315

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GB

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20210315

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: TR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20191218

Ref country code: MT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20191218

Ref country code: CY

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20191218

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: MK

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20191218

REG Reference to a national code

Ref country code: AT

Ref legal event code: MM01

Ref document number: 1215073

Country of ref document: AT

Kind code of ref document: T

Effective date: 20220315

P01 Opt-out of the competence of the unified patent court (upc) registered

Effective date: 20230525

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: AT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20220315

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: FR

Payment date: 20240320

Year of fee payment: 8