EP0546947B1 - Echangeur de chaleur indirect du type à plaques - Google Patents

Echangeur de chaleur indirect du type à plaques Download PDF

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Publication number
EP0546947B1
EP0546947B1 EP92403363A EP92403363A EP0546947B1 EP 0546947 B1 EP0546947 B1 EP 0546947B1 EP 92403363 A EP92403363 A EP 92403363A EP 92403363 A EP92403363 A EP 92403363A EP 0546947 B1 EP0546947 B1 EP 0546947B1
Authority
EP
European Patent Office
Prior art keywords
passages
heat exchanger
heat exchange
liquid
supplementary
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.)
Revoked
Application number
EP92403363A
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German (de)
English (en)
French (fr)
Other versions
EP0546947A1 (fr
Inventor
Pascal Arriulou
François Venet
Alain Grelaud
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.)
Air Liquide SA
LAir Liquide SA pour lEtude et lExploitation des Procedes Georges Claude
Original Assignee
Air Liquide SA
LAir Liquide SA pour lEtude et lExploitation des Procedes Georges Claude
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Application filed by Air Liquide SA, LAir Liquide SA pour lEtude et lExploitation des Procedes Georges Claude filed Critical Air Liquide SA
Publication of EP0546947A1 publication Critical patent/EP0546947A1/fr
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Anticipated expiration legal-status Critical
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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25J—LIQUEFACTION, SOLIDIFICATION OR SEPARATION OF GASES OR GASEOUS OR LIQUEFIED GASEOUS MIXTURES BY PRESSURE AND COLD TREATMENT OR BY BRINGING THEM INTO THE SUPERCRITICAL STATE
    • F25J3/00—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification
    • F25J3/02—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification by rectification, i.e. by continuous interchange of heat and material between a vapour stream and a liquid stream
    • F25J3/04—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification by rectification, i.e. by continuous interchange of heat and material between a vapour stream and a liquid stream for air
    • F25J3/04763—Start-up or control of the process; Details of the apparatus used
    • F25J3/04866—Construction and layout of air fractionation equipments, e.g. valves, machines
    • F25J3/04872—Vertical layout of cold equipments within in the cold box, e.g. columns, heat exchangers etc.
    • F25J3/04884—Arrangement of reboiler-condensers
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25J—LIQUEFACTION, SOLIDIFICATION OR SEPARATION OF GASES OR GASEOUS OR LIQUEFIED GASEOUS MIXTURES BY PRESSURE AND COLD TREATMENT OR BY BRINGING THEM INTO THE SUPERCRITICAL STATE
    • F25J3/00—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification
    • F25J3/02—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification by rectification, i.e. by continuous interchange of heat and material between a vapour stream and a liquid stream
    • F25J3/04—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification by rectification, i.e. by continuous interchange of heat and material between a vapour stream and a liquid stream for air
    • F25J3/04406—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification by rectification, i.e. by continuous interchange of heat and material between a vapour stream and a liquid stream for air using a dual pressure main column system
    • F25J3/04412—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification by rectification, i.e. by continuous interchange of heat and material between a vapour stream and a liquid stream for air using a dual pressure main column system in a classical double column flowsheet, i.e. with thermal coupling by a main reboiler-condenser in the bottom of low pressure respectively top of high pressure column
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25J—LIQUEFACTION, SOLIDIFICATION OR SEPARATION OF GASES OR GASEOUS OR LIQUEFIED GASEOUS MIXTURES BY PRESSURE AND COLD TREATMENT OR BY BRINGING THEM INTO THE SUPERCRITICAL STATE
    • F25J3/00—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification
    • F25J3/02—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification by rectification, i.e. by continuous interchange of heat and material between a vapour stream and a liquid stream
    • F25J3/04—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification by rectification, i.e. by continuous interchange of heat and material between a vapour stream and a liquid stream for air
    • F25J3/04624—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification by rectification, i.e. by continuous interchange of heat and material between a vapour stream and a liquid stream for air using integrated mass and heat exchange, so-called non-adiabatic rectification, e.g. dephlegmator, reflux exchanger
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25J—LIQUEFACTION, SOLIDIFICATION OR SEPARATION OF GASES OR GASEOUS OR LIQUEFIED GASEOUS MIXTURES BY PRESSURE AND COLD TREATMENT OR BY BRINGING THEM INTO THE SUPERCRITICAL STATE
    • F25J5/00—Arrangements of cold exchangers or cold accumulators in separation or liquefaction plants
    • F25J5/002—Arrangements of cold exchangers or cold accumulators in separation or liquefaction plants for continuously recuperating cold, i.e. in a so-called recuperative heat exchanger
    • F25J5/005—Arrangements of cold exchangers or cold accumulators in separation or liquefaction plants for continuously recuperating cold, i.e. in a so-called recuperative heat exchanger in a reboiler-condenser, e.g. within a column
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25J—LIQUEFACTION, SOLIDIFICATION OR SEPARATION OF GASES OR GASEOUS OR LIQUEFIED GASEOUS MIXTURES BY PRESSURE AND COLD TREATMENT OR BY BRINGING THEM INTO THE SUPERCRITICAL STATE
    • F25J5/00—Arrangements of cold exchangers or cold accumulators in separation or liquefaction plants
    • F25J5/002—Arrangements of cold exchangers or cold accumulators in separation or liquefaction plants for continuously recuperating cold, i.e. in a so-called recuperative heat exchanger
    • F25J5/007—Arrangements of cold exchangers or cold accumulators in separation or liquefaction plants for continuously recuperating cold, i.e. in a so-called recuperative heat exchanger combined with mass exchange, i.e. in a so-called dephlegmator
    • 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
    • F28D9/0062—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 conduits for one heat-exchange medium being formed by spaced plates with inserted elements
    • F28D9/0068—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 conduits for one heat-exchange medium being formed by spaced plates with inserted elements with means for changing flow direction of one heat exchange medium, e.g. using deflecting zones
    • 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
    • F28D9/0093—Multi-circuit heat-exchangers, e.g. integrating different heat exchange sections in the same unit or heat-exchangers for more than two fluids
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F3/00—Plate-like or laminated elements; Assemblies of plate-like or laminated elements
    • F28F3/02—Elements or assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with recesses, with corrugations
    • F28F3/025—Elements or assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with recesses, with corrugations the means being corrugated, plate-like elements
    • 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
    • F28F9/0268—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 in the form of multiple deflectors for channeling the heat exchange medium
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25J—LIQUEFACTION, SOLIDIFICATION OR SEPARATION OF GASES OR GASEOUS OR LIQUEFIED GASEOUS MIXTURES BY PRESSURE AND COLD TREATMENT OR BY BRINGING THEM INTO THE SUPERCRITICAL STATE
    • F25J2200/00—Processes or apparatus using separation by rectification
    • F25J2200/02—Processes or apparatus using separation by rectification in a single pressure main column system
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25J—LIQUEFACTION, SOLIDIFICATION OR SEPARATION OF GASES OR GASEOUS OR LIQUEFIED GASEOUS MIXTURES BY PRESSURE AND COLD TREATMENT OR BY BRINGING THEM INTO THE SUPERCRITICAL STATE
    • F25J2250/00—Details related to the use of reboiler-condensers
    • F25J2250/02—Bath type boiler-condenser using thermo-siphon effect, e.g. with natural or forced circulation or pool boiling, i.e. core-in-kettle heat exchanger
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25J—LIQUEFACTION, SOLIDIFICATION OR SEPARATION OF GASES OR GASEOUS OR LIQUEFIED GASEOUS MIXTURES BY PRESSURE AND COLD TREATMENT OR BY BRINGING THEM INTO THE SUPERCRITICAL STATE
    • F25J2250/00—Details related to the use of reboiler-condensers
    • F25J2250/04—Down-flowing type boiler-condenser, i.e. with evaporation of a falling liquid film
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25J—LIQUEFACTION, SOLIDIFICATION OR SEPARATION OF GASES OR GASEOUS OR LIQUEFIED GASEOUS MIXTURES BY PRESSURE AND COLD TREATMENT OR BY BRINGING THEM INTO THE SUPERCRITICAL STATE
    • F25J2290/00—Other details not covered by groups F25J2200/00 - F25J2280/00
    • F25J2290/32—Details on header or distribution passages of heat exchangers, e.g. of reboiler-condenser or plate heat exchangers
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
    • F28D21/00—Heat-exchange apparatus not covered by any of the groups F28D1/00 - F28D20/00
    • F28D2021/0019—Other heat exchangers for particular applications; Heat exchange systems not otherwise provided for
    • F28D2021/0033—Other heat exchangers for particular applications; Heat exchange systems not otherwise provided for for cryogenic applications
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F2250/00—Arrangements for modifying the flow of the heat exchange media, e.g. flow guiding means; Particular flow patterns
    • F28F2250/10—Particular pattern of flow of the heat exchange media
    • F28F2250/108—Particular pattern of flow of the heat exchange media with combined cross flow and parallel flow

Definitions

  • the present invention relates to indirect plate heat exchangers, that is to say of the type comprising a series of parallel plates delimiting between them passages of generally flat shape containing spacer waves, a first set of these passages, constituting heat exchange passages, comprising means for entering / leaving fluids intended to exchange heat between them and comprising annex passages, over at least part of its length and width, arranged to fill at least an auxiliary function of the heat exchanger, in particular a liquid storage and / or liquid recirculation and / or liquid / vapor separation function.
  • Brazed plate heat exchangers are particularly efficient to build. Indeed, it suffices to stack all their elements (plates, waves serving as spacers and fins, bars for closing the passages) and to connect them to one another in a single operation by brazing in an oven.
  • An exchanger having passages fulfilling an additional function is known from FR-A-2,431,103 in which the nitrogen supply passages exchange heat with the heat exchange passages.
  • the object of the invention is to improve the operation of the passages which fulfill a function annexed to that of the exchanger.
  • the invention relates to an indirect heat exchanger of the aforementioned type, characterized in that the annex passages are all adjacent and in reduced or almost zero heat exchange relationship with the heat exchange passages.
  • the heat exchanger shown in Figures 1 to 4 is a liquid vaporizer, of the thermosyphon type. It will be described in its application as the main evaporator-condenser of a double air distillation column, bringing the nitrogen gas at the top of the medium pressure column into heat exchange relationship, at about 6 bar absolute, and liquid oxygen from the low pressure column tank, at around 1 bar absolute, in order to vaporize the oxygen by condensing the nitrogen.
  • the exchanger 1 comprises a parallelepipedic body 2 of aluminum, assembled in a single operation by brazing in the furnace, three semi-cylindrical boxes 3 to 5 for inlet / outlet of fluids, and an upper dome 6, the elements 3 to 6 being attached to watertight seal on body 2 by welding.
  • the body 2 consists of a large number of parallel vertical plates 7 between which are delimited passages 8 of generally flat shape containing spacer waves 9 with vertical generatrices. These passages are delimited by closing bars 10 indicated by strong lines in FIGS. 2 to 4.
  • the vertical dimension of the body 2 will be called “length”, “thickness” its horizontal dimension perpendicular to the plates 7, and “width” its horizontal dimension parallel to these plates.
  • the body 2 is made up of two juxtaposed parts: on the left in FIG. 1, a part 2A for heat exchange, and on the right an annex part 2B ensuring the additional functions of liquid recirculation, liquid / vapor separation, storage liquid and uniform liquid supply from part 2A.
  • the passages 8B of part 2B, shown in FIG. 4 have the same constitution as the oxygen vaporization passages 8A-2, their lower windows 17B also communicating with the box 5. However, their vertical waves 9B are less dense that waves 9A-1 of passages 8A-1 and that waves 9A-2 of passages 8A-2, thanks to a higher wave pitch, and / or their thickness is greater than that of passages 8A-1 than of passages 8A-2.
  • box 5 extends over the entire thickness of the body of the exchanger, that is to say covers its two parts 2A and 2B, while the boxes 3 and 4 only extend over that of part 2A.
  • the dome 6 is connected all along the four sides of the upper base of the parallelepiped formed by the body 2. It is provided with a pipe 19 for supplying liquid oxygen and a pipe 20 for discharging gaseous oxygen which leaves from its summit.
  • the nitrogen gas is condensed under approximately 6 bar absolute down into passages 8A-1, and passages 8A-2 and 8B are filled with liquid oxygen under approximately 1 bar absolute, up to a level situated in dome 6, as seen in Figure 1.
  • the passages 8B therefore ensure the recirculation of the excess liquid oxygen, the separation of the two phases of the oxygen, and a storage of liquid oxygen making it possible to feed smoothly and in a manner uniform in liquid oxygen the vaporization passages 8A-2.
  • passages 8B In most passages 8B, the downward circulation of liquid oxygen is not hampered by any vaporization phenomenon, since these passages are not in heat exchange relationship with the nitrogen passages. The situation is slightly different for passage 8B adjacent to part 2A of body 2, but the heat exchange is reduced there considerably on the one hand by the proximity of passage 8A-2, on the other hand by the greater thickness of the passages 8B and / or by the lower density of the wave 9B, leading to a reduced fin effect.
  • FIG. 5 differs from that which has just been described only in that the part 2B of the body 2 is divided into two sub-parts 2B-1 and 2B-2 surrounding the heat exchange part 2A.
  • the arrangement of FIG. 1 is currently preferred, where the heating of the passages 8B is minimal.
  • the embodiment of the heat exchanger shown in FIGS. 6 to 8 differs essentially from the previous one in that the parts 2A and 2B of the body 2 are no longer distributed according to the thickness of the exchanger, but according to its width, that is to say that part of each passage 8 is used for heat exchange and the rest for additional functions.
  • one passage in two consists, over most of its width (FIG. 7), of a nitrogen condensation passage 8A-1 having the constitution described above with regard to FIG. 2 and, on the rest of its width, of an annex passage 8B-1 open at the top and at the bottom and containing a simple vertical wave 9B, the passages 8A-1 and 8B-1 being sealed over the entire length of the body 2 by a vertical bar 10.
  • the other passages consist ( Figure 8) of an oxygen vaporization passage 8A-2 open at its two ends, of the same width as the passages 8A-1 and located opposite these, this passage 8A-2 containing a simple vertical wave, and an annex passage 8B-2 similar to passages 8B-1, with the interposition of a vertical bar 10 between passages 8A-2 and 8B-2.
  • the box 5 of FIG. 1, intended for the supply of liquid oxygen to the passages 8A-2, is eliminated and replaced by a lower dome 21 connected to a tight seal at the four lower sides of the body 2.
  • the passages 8A-2 are supplied with liquid oxygen directly from below.
  • each passage 8B-1 has at its base an outlet window 17B-1 and an oblique wave 18B as in Figures 1 to 4
  • each of the passages 8B-2 has at its base an inlet window 17B-2.
  • the box 5 of Figures 2 to 4 covers all the windows 17B-1 and 17B-2.
  • the lower part of the passages 8B-2 comprises a wave 23 with horizontal generators, for example, as shown, of the "serrated" type, that is to say comprising at intervals regular punctures vertically offset by a quarter of a wave step.
  • the vertical bars 10 may only be provided between the passages 8A-1 and 8B-1, no partition separating the passages 8A-2 and 8B-2, which comprise only one non-perforated vertical common wave and, in their lower part, a horizontal wave 24 of triangular shape which extends over the entire width of the exchanger.
  • the liquid oxygen in one passage out of two, the liquid oxygen follows a downward path in the zone 8B-2, horizontal along the wave 24 then ascending in the zone 8A-2.
  • the liquid oxygen is in an indirect heat exchange relationship with the nitrogen which condenses in the passages 8A-1, and the passages 8B-1 are dead zones, which can be opened upwards. and therefore filled with liquid oxygen, as shown, or alternatively, closed at their two ends.
  • Figure 15 shows schematically an application of a plate heat exchanger serving as a dephlegmator, for example to produce nitrogen.
  • the air introduced at approximately 6 bar absolute, is partially condensed upward, as illustrated by the arrows 25, which produces at the bottom of these passages "rich liquid” (air enriched in oxygen) LR and, at the top of the same passages, nitrogen gas NG.
  • the rich liquid is expanded to 1 bar absolute in an expansion valve 26, which produces a flash.
  • the upper part of the aforementioned passages is used to separate the two phases, which are then recombined in the remaining passages, where the low-pressure two-phase refrigerant rich liquid circulates from top to bottom and is then discharged in the form of a vaporized rich liquid. LRV.
  • the remaining passages 60 have, from top to bottom, a vaporized rich liquid inlet zone communicating with a lateral inlet window 52 and containing an oblique wave 53, a zone containing a vertical wave 54, a zone without wave, of low height, into which the holes emerge 43, a heat exchange zone with vertical wave 55, and a liquid outlet zone rich vaporized containing an oblique wave 56 which leads to an outlet window 57.
  • the box 51 also communicates with the windows 52, and an outlet box 58 communicates with the windows 57.
  • phase separation zone 42 it is possible to use the phase separation zone 42 to return the separated vapor phase, via the box 51 and the passages containing the wave 54, to a different level from the exchanger, for example at its end. lower.
  • the vapor phase is released laterally at said level, taken up by an outlet box and sent by the latter in other passages of the exchanger.

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Mechanical Engineering (AREA)
  • Thermal Sciences (AREA)
  • General Engineering & Computer Science (AREA)
  • Separation By Low-Temperature Treatments (AREA)
  • Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
EP92403363A 1991-12-11 1992-12-11 Echangeur de chaleur indirect du type à plaques Revoked EP0546947B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR9115381 1991-12-11
FR9115381A FR2685071B1 (fr) 1991-12-11 1991-12-11 Echangeur de chaleur indirect du type a plaques.

Publications (2)

Publication Number Publication Date
EP0546947A1 EP0546947A1 (fr) 1993-06-16
EP0546947B1 true EP0546947B1 (fr) 1996-04-17

Family

ID=9419929

Family Applications (1)

Application Number Title Priority Date Filing Date
EP92403363A Revoked EP0546947B1 (fr) 1991-12-11 1992-12-11 Echangeur de chaleur indirect du type à plaques

Country Status (7)

Country Link
US (1) US5333683A (zh)
EP (1) EP0546947B1 (zh)
JP (1) JPH05280881A (zh)
CN (1) CN1041126C (zh)
CA (1) CA2084920A1 (zh)
DE (1) DE69209994T2 (zh)
FR (1) FR2685071B1 (zh)

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FR2718836B1 (fr) * 1994-04-15 1996-05-24 Maurice Grenier Echangeur de chaleur perfectionné à plaques brasées.
DE4426692C1 (de) * 1994-07-28 1995-09-14 Daimler Benz Ag Zweistufige Verdampfereinheit für einen Reaktant-Massenstrom und Verfahren zur Herstellung desselben
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FR2728670B1 (fr) * 1994-12-23 1997-03-21 Air Liquide Chambre d'entree/sortie de fluide, et appareil a circulation de fluide correspondant
IL114613A (en) * 1995-07-16 1999-09-22 Tat Ind Ltd Parallel flow condenser heat exchanger
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SE509081C2 (sv) 1997-02-14 1998-11-30 Aga Ab Sätt och anordning för kylning av en produkt med utnyttjande av kondenserad gas
FR2786858B1 (fr) * 1998-12-07 2001-01-19 Air Liquide Echangeur de chaleur
JP3100371B1 (ja) * 1999-04-28 2000-10-16 春男 上原 蒸発器
FR2798599B1 (fr) * 1999-09-21 2001-11-09 Air Liquide Vaporiseur-condenseur a thermosiphon et installation de distillation d'air correspondante
US6428627B1 (en) * 2000-03-15 2002-08-06 Hatco Corporation Flow heater
DE10021081A1 (de) * 2000-04-28 2002-01-03 Linde Ag Verfahren und Vorrichtung zum Wärmeaustausch
FR2812935B1 (fr) * 2000-08-08 2002-10-18 Air Liquide Echangeur thermique a blocs echangeurs multiples a ligne d'alimentation en fluide a distribution uniforme, et vaporiseur-condenseur comportant un tel echangeur
US6349566B1 (en) 2000-09-15 2002-02-26 Air Products And Chemicals, Inc. Dephlegmator system and process
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FR2685071B1 (fr) 1996-12-13
CA2084920A1 (fr) 1993-06-12
CN1073259A (zh) 1993-06-16
JPH05280881A (ja) 1993-10-29
DE69209994D1 (de) 1996-05-23
EP0546947A1 (fr) 1993-06-16
US5333683A (en) 1994-08-02
FR2685071A1 (fr) 1993-06-18
DE69209994T2 (de) 1996-09-05
CN1041126C (zh) 1998-12-09

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