EP2859295B1 - Caloporteur - Google Patents

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Publication number
EP2859295B1
EP2859295B1 EP13730801.1A EP13730801A EP2859295B1 EP 2859295 B1 EP2859295 B1 EP 2859295B1 EP 13730801 A EP13730801 A EP 13730801A EP 2859295 B1 EP2859295 B1 EP 2859295B1
Authority
EP
European Patent Office
Prior art keywords
collecting channel
heat exchanger
medium
shell
exchanger according
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.)
Not-in-force
Application number
EP13730801.1A
Other languages
German (de)
English (en)
Other versions
EP2859295A1 (fr
Inventor
Stefan Kayser
Michael BERNAUER
Steffen Brenner
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 EP2859295A1 publication Critical patent/EP2859295A1/fr
Application granted granted Critical
Publication of EP2859295B1 publication Critical patent/EP2859295B1/fr
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F9/00—Casings; Header boxes; Auxiliary supports for elements; Auxiliary members within casings
    • F28F9/001—Casings in the form of plate-like arrangements; Frames enclosing a heat exchange core
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F9/00—Casings; Header boxes; Auxiliary supports for elements; Auxiliary members within casings
    • F28F9/02—Header boxes; End plates
    • F28F9/026—Header boxes; End plates with static flow control means, e.g. with means for uniformly distributing heat exchange media into conduits
    • F28F9/0265—Header boxes; End plates with static flow control means, e.g. with means for uniformly distributing heat exchange media into conduits by using guiding means or impingement means inside the header box
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
    • F28D21/00—Heat-exchange apparatus not covered by any of the groups F28D1/00 - F28D20/00
    • F28D21/0017—Flooded core heat exchangers
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
    • F28D7/00—Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall
    • F28D7/16—Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall the conduits being arranged in parallel spaced relation
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
    • F28D9/00—Heat-exchange apparatus having stationary plate-like or laminated conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall
    • F28D9/0006—Heat-exchange apparatus having stationary plate-like or laminated conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall the plate-like or laminated conduits being enclosed within a pressure vessel
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F13/00—Arrangements for modifying heat-transfer, e.g. increasing, decreasing
    • F28F13/06—Arrangements for modifying heat-transfer, e.g. increasing, decreasing by affecting the pattern of flow of the heat-exchange media

Definitions

  • the invention relates to a heat exchanger according to the preamble of claim 1.
  • a heat exchanger is made US 2005/0039486 known.
  • a first medium which forms a bath surrounding the heat transfer block during operation of the heat exchanger and rises from bottom to top in the heat transfer block (along the vertical) (thermosiphon effect) can be brought into indirect heat transfer with a second medium (For example, to be liquefied gaseous phase or a liquid phase to be cooled), which is preferably performed in countercurrent or cross flow to the first medium in the heat transfer block.
  • a resulting gaseous phase of the first medium collects in the jacket space above the heat transfer block and is withdrawn via at least one outlet nozzle provided on the jacket and optionally fed to further process steps via a (external) collecting duct provided outside the jacket.
  • JP 2002 349999 refers to a heat exchanger with tubular heat exchange structures AD.
  • a demister 7 is attached to a frame structure 5 above the pipe groups AD.
  • FIG. 4 shows below the tube groups a distributor plate 18 for a liquid refrigerant.
  • the plate 18 has a special arrangement of distribution openings 18a to distribute the liquid refrigerant in a defined manner in the tube groups.
  • the present invention seeks to provide a heat exchanger, which is improved in view of the aforementioned problem.
  • a plurality of heat transfer blocks or plate heat exchangers may also be provided in the shell space. can be operated in parallel or in series.
  • Such plate heat exchangers generally have a plurality of parallel plates or plates, which form a plurality of heat exchange passages for media involved in the heat exchange.
  • a preferred embodiment of a plate heat exchanger has a plurality of corrugated sheets (so-called fins), each disposed between two parallel separator plates or plates of the plate heat exchanger, wherein the two outermost layers of the plate heat exchanger are formed by cover plates.
  • fins corrugated sheets
  • each two adjacent partition plates or between a cover plate and the adjacent partition plate preferably end strips (so-called side bars) for closing the respective heat exchange passage.
  • the cover plates, separator plates, fins and side bars are preferably made of aluminum manufactured and are soldered together, for example in an oven. Via appropriate headers with nozzles media can be introduced into the heat exchange passages or subtracted from these.
  • the jacket of the heat exchanger can in particular have a circumferential, (circular) cylindrical wall, which is preferably aligned in an intended arranged state of the heat exchanger so that the longitudinal axis (cylinder axis) of the wall or the jacket extends along the horizontal.
  • the jacket preferably has mutually opposite walls connected to that wall, which extend transversely to the horizontal or longitudinal axis.
  • said collecting channel for withdrawing the gaseous phase of the first medium with an outlet nozzle which is arranged in particular on an upper side of the jacket, is conductively connected (eg via a line) so that the gaseous phase of the first medium is above those outlet nozzles can be deducted from the shell space.
  • the collecting channel extends along an extension direction that is parallel to the longitudinal axis (cylinder axis) of the shell or along the horizontal, and preferably preferably a tubular (circular) or a box-shaped (transverse) to said extension direction (longitudinal axis). rectangular) cross section.
  • the collecting channel is arranged along the vertical above the liquid level of the first medium or above the heat transfer block in the jacket space, so that the gaseous phase of the first medium rising from the heat transfer block strikes the collecting channel (relative to a condition of the heat exchanger arranged as intended).
  • the collecting channel preferably has a wall which encloses an interior of the collecting channel, in which the gaseous phase can flow to the said outlet connection.
  • the top and bottom of the collecting channel are preferably through along the longitudinal axis of the shell extended side walls of the collecting channel interconnected.
  • the end face of the collecting channel is bounded by opposite end faces, which connect the top, bottom and side walls together.
  • a variant of the invention further provides that one or more of the aforementioned regions of the wall of the collecting channel can be formed by the jacket of the heat exchanger.
  • the top of the collecting channel or the top of the wall of the collecting channel is formed by the jacket.
  • the side walls and end faces are therefore attached to the jacket corresponding to the jacket space.
  • the collecting channel a plurality of inlet openings, which are formed in particular on the bottom (bottom) of the collecting channel and possibly on the opposite side walls of the collecting channel.
  • the inlet openings formed at the bottom of the collecting channel are preferably slit-shaped, whereas inlet openings provided on the side walls preferably have a circular contour (for example bores).
  • the distances between adjacent inlet openings decrease towards the respective end face of the collecting channel. That is, the two adjacent entrance openings, which are located closer to one of the end faces of the collecting channel, preferably have a smaller distance from each other along the extension direction of the collecting channel than two adjacent inlet openings, which are arranged towards the center of the collecting channel (with respect to the extension direction).
  • the number, distribution, size and / or shape of the inlet openings are chosen so that the velocity field of the gaseous phase of the first medium in the collecting channel sets the amount as uniform as possible.
  • the cross-sectional area (and possibly contour) of the collecting channel is selected such that a uniform as possible flow field of the gaseous phase of the first medium sets in the collecting channel and in the shell space. This is preferably supported by an enlargement / enlargement of the cross section of the collecting channel towards the outlet nozzle and / or by a defined arrangement, shape and size of the inlet openings on the collecting channel.
  • the sheath can of course also have a plurality of outlet stubs, which may be connected to a collecting channel as described above or possibly to a plurality of collecting channels of the type described above.
  • the positions, dimensions and orientations of these collecting ducts are preferably selected such that the velocity field of the gaseous phase of the first medium in the jacket space and in the respective collecting duct is adjusted as uniformly as possible in terms of magnitude.
  • the at least one outlet nozzle (or even several outlet nozzle) can be arranged on an upper, a lower, a lateral region of the circumferential wall of the jacket or on one of the frontal walls of the jacket.
  • FIG. 1 shows in connection with the FIGS. 2 and 3 a heat exchanger 1, which has a transverse, (circular) cylindrical shell 2, which limits a shell space 3 of the heat exchanger 1.
  • the jacket 2 in this case has a circumferential, cylindrical wall 14, which is delimited by two opposing walls 15 frontally.
  • a heat transfer block 4 is arranged in the jacket space 2 enclosed by the jacket 2. This may be a plate heat exchanger that provides multiple parallel heat exchange passages.
  • the plate heat exchanger 4 in this case has a plurality of corrugated sheets (so-called fins), which are each arranged between two flat partition plates or plates of the plate heat exchanger 4.
  • fins corrugated sheets
  • the two outermost layers are formed by cover plates of the plate heat exchanger; towards the sides are between each two adjacent partition plates or separating and cover plates end strips (so-called "side bars") provided.
  • the jacket space 3 is filled with a first medium F1 during operation of the heat exchanger 1, so that a liquid phase L1 of the first medium F1 forms a bath surrounding the heat transfer block or plate heat exchanger 4, with a gaseous phase G1 of the first medium forming during operation F1 above the liquid phase L1 in the mantle space 3 can collect.
  • the first medium (liquid phase L1) F1 can ascend in the heat transfer block 4 (in associated heat exchange passages) and is thereby indirectly controlled by a second medium F2 to be cooled, which is cross-flown to the first medium F1 in associated heat exchange passages of the heat transfer block 4 Heat transfer partially evaporated.
  • the resulting gaseous phase G1 of the first medium F1 can escape at an upper end of the block 4 and rises in the shell space 3 of the heat exchanger 1 with a certain speed field v.
  • the second medium F2 is passed through a suitable inlet O (eg via a nozzle on a header) in the heat transfer block or plate heat exchanger 4 and after passing through the associated heat exchange passages via a sequence O '(eg via a corresponding header and a connecting piece ) withdrawn from the block 4.
  • a suitable inlet O eg via a nozzle on a header
  • O ' e.g via a corresponding header and a connecting piece
  • a box-shaped collecting channel 5 which extends along an extension direction 7, is arranged on an inner side 2a of the jacket 2 facing the jacket space 3.
  • the collecting channel 5 is designed, in particular, longitudinally extended and accordingly has a greater extent along the direction of extent 7 than transversely to that direction of extent 7.
  • the collecting channel 5 furthermore has a wall W which delimits an interior I of the collecting channel 5, through which the gaseous phase G1 of the first medium F1 is withdrawn from the jacket space 3.
  • the wall W has in detail an upper side 9, which in the present case is formed by the jacket 2, as well as two side walls 11 extending therefrom, which extend along the extension direction 7 and via a bottom (lower side) 10 of the collecting channel 5 lying opposite the upper side 9 are connected.
  • slot-shaped inlet openings 12 are now provided on the side walls 11 and / or the bottom 10 of the collecting channel (in the present case slot-shaped inlet openings on the bottom 10) through which the gaseous phase G1 can enter the collection channel 5.
  • the inlet openings 12 are arranged side by side along the extension direction 7, wherein the distance between adjacent inlet openings 13 along the extension direction 7, starting from the outlet nozzle 6 to the two end faces 11 a, 11 b of the collecting channel 5 towards each preferably decreases.
  • the longitudinal axes of these inlet openings 12 in each case extend transversely to the direction of extension 7 of the collecting channel 5.
  • circular inlet openings 13 are provided on the side walls 11 and / or the underside 10 of the collecting channel 5 (in the present case circular inlet openings 13 on the side walls 11), which are likewise arranged alongside one another along the extension direction 7.
  • the distance between adjacent inlet openings 12 along the extension direction 7, starting from the outlet nozzle 6 to the two end faces 11 a, 11 b of the collecting channel 5 towards each preferably decreases.
  • the collecting channel 5 is further connected to an outlet nozzle 6 of the jacket 2, which opens into the upper side 9 of the collecting channel 5, so that the gaseous phase G1 of the first medium F1, which has reached the interior I of the collecting channel 5 via the inlet openings 12, 13 Collection channel 5 can be deducted via the outlet nozzle 6.
  • the outlet nozzle 6 is preferably arranged centrally along the direction of extent 7 on the collecting channel 5, wherein the underside 10 of the collecting channel 5 preferably has two portions 10a, 10b sloping towards the outlet nozzle 6, which preferably meet below the outlet nozzle 6.
  • the cross-section of the collecting channel 5 increases (widened) in each case from the end faces 11 a, 11 b of the collecting channel 5, starting in the direction of the outlet nozzle 6, in the collecting channel 5 (and in the shell space 3) as homogeneous as possible velocity field v of the gaseous phase G1 of first medium F1.

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

Claims (13)

  1. Caloporteur (1) pour le transfert de chaleur indirect entre un premier milieu (F1) et un deuxième milieu (F2), avec:
    - une virole (2), qui présente une chambre de virole (3) destinée à contenir un premier milieu (F1),
    - au moins un bloc de transfert de chaleur (4) disposé dans la chambre de virole (3), qui est enveloppé en fonctionnement normal par le premier milieu (F1), dans lequel le bloc de transfert de chaleur (4) est conçu pour refroidir le deuxième milieu (F2) contre le premier milieu (F1) et/ou pour liquéfier le deuxième milieu (F2) au moins en partie, de telle manière qu'il se forme dans la chambre de virole (3) une phase gazeuse du premier milieu (G1),
    - dans lequel il est prévu, pour l'extraction de la phase gazeuse du premier milieu (G1) hors de la chambre de virole (3), un canal de collecte (5) se trouvant dans la chambre de virole (3), qui s'étend le long d'une direction d'extension qui est orientée parallèlement à l'axe longitudinal de la virole,
    - et dans lequel ledit au moins un bloc de transfert de chaleur (4) est un échangeur de chaleur à plaques,
    - et dans lequel le canal de collecte (5) est raccordé à au moins un tuyau de sortie (6) prévu à la virole (2), de telle manière que la phase gazeuse du premier milieu (G1) puisse être extraite hors de la chambre de virole (3) par le canal de collecte (5) via ledit au moins tuyau de sortie (6),
    - et dans lequel le canal de collecte (5) présente deux côtés frontaux (11a, 11b), qui sont opposés l'un à l'autre le long de la direction d'extension du canal de collecte (5),
    caractérisé en ce que
    - le canal de collecte (5) présente transversalement à la direction d'extension (7) une section transversale qui augmente en direction du tuyau de sortie (6) et
    - le canal de collecte (5) présente une multiplicité d'ouvertures d'entrée (12, 13) pour l'extraction de la phase gazeuse, dans lequel les distances d'ouvertures d'entrée voisines diminuent en direction du côté frontal respectif (11a, 11b) du canal de collecte (5).
  2. Caloporteur selon la revendication 1, caractérisé en ce que le bloc de transfert de chaleur (4) est conçu de telle manière que le premier milieu (F1) puisse monter dans le bloc de transfert de chaleur (4) lors du fonctionnement du caloporteur (1), dans lequel le bloc de transfert de chaleur (4) est en particulier conçu pour guider le deuxième milieu (F2) à contre-courant ou à courants croisés par rapport au premier milieu (F1) dans le bloc de transfert de chaleur (4).
  3. Caloporteur selon la revendication 1 ou 2, caractérisé en ce qu'une multiplicité de blocs de transfert de chaleur (4) en forme d'échangeurs de chaleur à plaques sont disposés dans la chambre de virole.
  4. Caloporteur selon l'une quelconque des revendications précédentes, caractérisé en ce que le canal de collecte (5) présente une paroi (W), qui définit un espace intérieur (I) du canal de collecte (5), dans lequel la phase gazeuse du premier milieu (G1) peut s'écouler vers le tuyau de sortie (6), et qui s'étend le long d'un côté supérieur (8) de la virole (2) en s'étendant longitudinalement le long de la direction d'extension horizontale (7).
  5. Caloporteur selon la revendication 4, caractérisé en ce que le canal de collecte (5) présente, transversalement à la direction d'extension (7), une section transversale en forme de caisson ou de tube.
  6. Caloporteur selon l'une des revendications 4 ou 5, caractérisé en ce que la paroi (W) du canal de collecte (5) présente un côté supérieur (9) et un côté inférieur opposé (10), dans lequel le côté supérieur (9) et le côté inférieur (10) sont reliés l'un à l'autre par des parois latérales opposées l'une à l'autre (11) de la paroi (W) du canal de collecte (5).
  7. Caloporteur selon la revendication 6, caractérisé en ce qu'une région de la paroi (W) du canal de collecte (5), en particulier un côté supérieur (9) de la paroi (W), est formé par la virole (2).
  8. Caloporteur selon la revendication 6 ou 7, caractérisé en ce que le côté inférieur (10) et/ou les parois latérales (11) du canal de collecte (5) présentent une multiplicité d'ouvertures d'entrée en particulier en forme de fentes (12), par lesquelles la phase gazeuse du premier milieu (G1) peut pénétrer dans le canal de collecte (5).
  9. Caloporteur selon l'une quelconque des revendications 6 à 8, caractérisé en ce que le côté inférieur (10) et/ou les parois latérales (11) du canal de collecte (5) présentent une multiplicité d'ouvertures d'entrée (13) en particulier circulaires, par lesquelles la phase gazeuse du premier milieu (G1) peut pénétrer dans le canal de collecte (5).
  10. Caloporteur selon l'une quelconque des revendications précédentes, caractérisé en ce que le caloporteur (1) présente plusieurs tuyaux de sortie (6), qui sont raccordés l'un à l'autre par le canal de collecte (5).
  11. Caloporteur selon l'une quelconque des revendications précédentes, caractérisé en ce que le caloporteur (1) présente une multiplicité de canaux de collecte (5), qui sont raccordés respectivement à au moins un tuyau de sortie (6).
  12. Caloporteur selon l'une quelconque des revendications précédentes, caractérisé en ce que la virole (2) présente une paroi cylindrique (14), s'enroulant transversalement à la direction d'extension (7), qui relie l'une à l'autre deux parois frontales (15) de la virole (2).
  13. Caloporteur selon la revendication 12, caractérisé en ce que ledit au moins un tuyau de sortie (6) est disposé sur la paroi périphérique (W) de la virole (2), en particulier dans une région supérieure, une région latérale ou une région inférieure (8, 16) de la paroi (14) de la virole (2), ou en ce que ledit au moins un tuyau de sortie (6) est disposé sur une des parois frontales (15) de la virole (2).
EP13730801.1A 2012-06-06 2013-06-06 Caloporteur Not-in-force EP2859295B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102012011328A DE102012011328A1 (de) 2012-06-06 2012-06-06 Wärmeübertrager
PCT/EP2013/001670 WO2013182314A1 (fr) 2012-06-06 2013-06-06 Échangeur de chaleur

Publications (2)

Publication Number Publication Date
EP2859295A1 EP2859295A1 (fr) 2015-04-15
EP2859295B1 true EP2859295B1 (fr) 2016-08-03

Family

ID=46758579

Family Applications (1)

Application Number Title Priority Date Filing Date
EP13730801.1A Not-in-force EP2859295B1 (fr) 2012-06-06 2013-06-06 Caloporteur

Country Status (10)

Country Link
US (1) US20150153115A1 (fr)
EP (1) EP2859295B1 (fr)
JP (1) JP6116681B2 (fr)
KR (1) KR20150030229A (fr)
CN (1) CN104350351B (fr)
AU (1) AU2013270937B2 (fr)
DE (1) DE102012011328A1 (fr)
ES (1) ES2598837T3 (fr)
MX (1) MX344387B (fr)
WO (1) WO2013182314A1 (fr)

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US8833437B2 (en) * 2009-05-06 2014-09-16 Holtec International, Inc. Heat exchanger apparatus for converting a shell-side liquid into a vapor
CN101839590B (zh) * 2010-02-22 2012-03-21 三花丹佛斯（杭州）微通道换热器有限公司 一种微通道换热器
FI20115125A0 (fi) * 2011-02-09 2011-02-09 Vahterus Oy Laite pisaroiden erottamiseksi

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AU2013270937B2 (en) 2017-07-27
EP2859295A1 (fr) 2015-04-15
CN104350351B (zh) 2017-08-15
ES2598837T3 (es) 2017-01-30
US20150153115A1 (en) 2015-06-04
MX2014014454A (es) 2015-02-12
CN104350351A (zh) 2015-02-11
KR20150030229A (ko) 2015-03-19
JP6116681B2 (ja) 2017-04-19
JP2015518953A (ja) 2015-07-06
MX344387B (es) 2016-12-14
WO2013182314A1 (fr) 2013-12-12
AU2013270937A1 (en) 2014-12-04
DE102012011328A1 (de) 2013-12-12

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