EP0912868A1 - Apparatus for exchanging heat between at least three fluids - Google Patents

Apparatus for exchanging heat between at least three fluids

Info

Publication number
EP0912868A1
EP0912868A1 EP97931891A EP97931891A EP0912868A1 EP 0912868 A1 EP0912868 A1 EP 0912868A1 EP 97931891 A EP97931891 A EP 97931891A EP 97931891 A EP97931891 A EP 97931891A EP 0912868 A1 EP0912868 A1 EP 0912868A1
Authority
EP
European Patent Office
Prior art keywords
plates
bundle
fluid
fluids
sealed enclosure
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.)
Granted
Application number
EP97931891A
Other languages
German (de)
French (fr)
Other versions
EP0912868B1 (en
Inventor
William Levy
Dominique Sabin
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.)
Alfa Laval Packinox SAS
Original Assignee
Packinox SA
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 Packinox SA filed Critical Packinox SA
Publication of EP0912868A1 publication Critical patent/EP0912868A1/en
Application granted granted Critical
Publication of EP0912868B1 publication Critical patent/EP0912868B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • F28F9/007—Auxiliary supports for elements
    • F28F9/0075—Supports for plates or plate assemblies
    • 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
    • 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

Definitions

  • the present invention relates to a heat exchange installation used to cool or heat a first fluid by heat exchange with at least two other fluids.
  • the heat exchange installations include heat exchangers which are generally of two types.
  • the first type of heat exchanger comprises a bundle of U-shaped tubes or a bundle of straight tubes in which one of the fluids circulates.
  • the second type of heat exchanger comprises a sealed enclosure in which is placed a bundle of plates arranged contiguously and parallel to each other.
  • the plates made of thin sheets, most often made of stainless steel, have edges with a smooth surface and a central part provided with corrugations by which they are in contact with each other and by which they delimit channels forming circuits of circulation of independent fluids.
  • This type of plate bundle heat exchanger works with various fluids such as liquids or gases or a two-phase mixture. With this type of plate heat exchanger, circulating the two fluids in the respective circuits, there is a heat exchange between these two fluids which allows to heat one of the fluids and cool the other fluid or vice versa.
  • Each plate heat exchanger consists of a sealed enclosure in which is disposed a bundle of plates delimiting two circuits, one of which is intended for the main fluid to be heated or cooled.
  • the connecting pipes between the different exchangers for the transfer of the main fluid between these exchangers constitute unnecessary and parasitic pressure drop zones and calorie loss zones which reduces the yields of the heat exchange installation. .
  • the object of the invention is to avoid the drawbacks mentioned above by proposing a compact heat exchange installation which makes it possible to reduce the pressure losses as well as the weight and the size of this installation and to increase the yields.
  • the invention therefore relates to a heat exchange installation between at least three fluids, characterized in that it comprises: - an elongated sealed enclosure,
  • the means for entering the first fluid are formed by a tube passing through the sealed enclosure and connected to a collector disposed on the inlet of the corresponding circuit of the first bundle of plates,
  • the connecting means for the circulation of the first fluid between the two bundles of plates are formed by a tube connected by one of its ends to a manifold disposed on the outlet of the corresponding circuit of the first bundle of plates and by the other of its ends to a collector arranged on the input of the corresponding circuit of the second bundle of plates,
  • the means for leaving the first fluid are formed by a tube passing through the sealed enclosure and connected to a collector disposed on the outlet of the corresponding circuit of the second bundle of plates,
  • the means for entering the second fluid of the first bundle of plates are formed by a tube passing through the sealed enclosure and connected to a manifold disposed on the input of the corresponding circuit of the first bundle of plates,
  • the means for outputting the second fluid from the first bundle of plates are formed by a tube passing through the sealed enclosure and connected to a collector disposed on the output of the corresponding circuit of the first bundle of plates,
  • the inputs of the circulation circuits of the first fluid and of the second fluid into the first bundle of plates are located on the same end of said first bundle of plates for a co-current circulation of said fluids
  • the inputs of the circuits for circulation of the first fluid and of the second fluid in the first bundle of plates are located respectively on an opposite end of said first bundle of plates for a counter-current circulation of said fluids
  • the means for entering the third fluid are formed by a tube opening into the sealed enclosure and communicating with the inlet of the corresponding circuit of the second bundle of plates,
  • the means for outputting the third fluid are formed by a tube passing through the sealed enclosure and connected to a collector disposed on the output of the corresponding circuit of the second bundle of plates, the inputs of the circuits for circulation of the first fluid and of the third fluid in the second bundle of plates are located on the same end of said second bundle of plates for a co-current circulation of said fluids,
  • the inputs of the circuits for circulation of the first fluid and of the third fluid in the second bundle of plates are located respectively on an opposite end of said second bundle of plates for a counter-current circulation of said fluids
  • the means for holding the first bundle of plates are arranged at the outlet of the first fluid from said bundle of plates and comprise, on the one hand, two plates having substantially the shape of a half-disc, linked to the corresponding collectors and , on the other hand, two plates having substantially the shape of a half-disc, linked to the internal wall of the sealed enclosure, said plates being in abutment one on the other and allowing expansion of said first bundle of plates towards the inlet of the first fluid,
  • the means for holding the second bundle of plates are arranged at the entry of the first fluid into said bundle of plates and comprise, on the one hand, two plates having substantially the shape of a half-disc, linked to the collectors correspondents and, on the other hand, two plates having substantially the shape of a half-disc, linked to the internal wall of the sealed enclosure, said plates being in abutment one on the other and allowing expansion of said second bundle of plates towards the outlet of the first fluid.
  • FIG. 1 is a schematic view in partially cutaway perspective of a heat exchange installation according to the invention
  • FIG. 2 is a schematic view in longitudinal section of the heat exchange installation according to the invention
  • FIG. 2 is a sectional view along line 3-3 of FIG. 2,
  • FIG. 4 is a schematic cross-sectional view of a portion of the first bundle of plates of the heat exchange installation according to the invention
  • FIG. 5 is a diagrammatic view in cross section of a portion of the second bundle of plates of the heat exchange installation according to the invention
  • - Fig. 6 is a view in longitudinal section and on a larger scale showing the means for holding the bundles of plates in the sealed enclosure.
  • FIGs. 1 to 3 there is shown an installation intended to carry out a heat exchange between a first fluid A constituted by a liquid or a gas or biphasic mixture and at least two fluids B and C each constituted by a liquid or a gas or a biphasic mixture .
  • This heat exchange installation is intended for example to cool the first fluid A with fluids B and C or to heat this first fluid A.
  • the first fluid A is cooled by two fluids B and C respectively.
  • this first fluid A can be cooled by more than two other fluids.
  • the heat exchange installation shown in Figs. 1 to 3 comprises a sealed enclosure 1 of elongated shape and of circular section, for example.
  • This sealed enclosure 1 is provided with organs support, not shown, intended to rest on a receiving surface and this sealed enclosure 1 is preferably arranged vertically.
  • the bundles of plates 10 and 40 are separated from each other.
  • the first bundle of plates 10 has a generally parallelepiped shape and constitutes the exchange surface necessary for the heat transfer between the fluids A and B. As shown in FIG. 4, the first bundle of plates 10 is formed by a stack of thin metal plates 11 and for example of stainless steel, provided with corrugations 12.
  • the plates 11 of the plate bundle 10 are parallel to each other and are in contact with each other at the level of the corrugations 12 so as to delimit channels forming independent fluid circulation circuits.
  • the plates 11 form between them a first longitudinal circuit for the first fluid A, extending over the entire length of the bundle of plates 10 and a second longitudinal circuit b for the second fluid B, also extending over the entire length of the bundle of plates 10.
  • the second bundle of plates 40 has a generally parallelepiped shape and constitutes the exchange surface necessary for the heat transfer between the fluids A and C.
  • this second bundle of plates 40 is formed by a stack of metal plates 41, of small thickness and for example of stainless steel, provided with corrugations 42.
  • the plates 41 of the plate bundle 40 are parallel to each other and are in contact with each other at the level of the corrugations 42 so as to delimit channels forming independent fluid circulation circuits.
  • These plates 41 form between them a first longitudinal circuit for the first fluid A, extending over the entire length of the bundle of plates 40 and a second longitudinal circuit c for the third fluid C, also extending over the entire length of the plate bundle 40.
  • the heat exchange installation also includes:
  • the means for entering the first fluid A into the circuit a first bundle of plates 10 are formed by a tube 13 passing in leaktight manner enclosure 1 and connected to a manifold 14 disposed on the inlet of circuit a of the first bundle of plates 10.
  • the connecting means for the circulation of the first fluid A between the two bundles of plates 10 and 40 are formed by a tube 15 connected by one of its ends to a manifold 16 disposed on the outlet of the circuit a of the first bundle of plates 10 and by the other of its ends to a collector 43 placed on the input of the circuit a of the second bundle of plates 40.
  • the means for outputting the first fluid A from the second bundle of plates 40 are formed by a tube 44 passing in leaktight manner through the enclosure 1 and connected to a manifold 45 disposed on the outlet of the circuit a of said second bundle of plates 40.
  • the means of entry of the second fluid B into the first bundle of plates 10 are formed by a tube 17 passing in leaktight manner the enclosure 1 and connected to a manifold 18 disposed on the inlet of circuit b of said first bundle of plates 10 .
  • the means for outputting the second fluid B from the first bundle of plates 10 are formed by a tube 19 passing in leaktight manner through the enclosure 1 and connected to a manifold 20 disposed on the outlet of the circuit b of said first bundle of plates 10.
  • the circulation of fluids A and B in the first bundle of plates 10 is against the current and, consequently, the inlet for fluid A and the outlet for fluid B are located on the same end of the bundle of plates 10 and the outlet of the fluid A and the inlet of the fluid B are located on the opposite end of the said bundle of plates 10.
  • the circulation of the fluids A and B in the first bundle of plates 10 can be co-current and in this case the inlets of the fluids A and B are located on the same end of said first bundle of plates 10.
  • outlets of the fluids A and B are also located on the same end of this first bundle of plates 10.
  • the means of entry of the third fluid C into the second bundle of plates 40 are formed by a tube 46 opening into the sealed enclosure 1 and communicating with the inlet of the circuit c of said second bundle of plates 40.
  • the third fluid C therefore circulates in circuit c of the second bundle of plates 40 and is also diffused inside the sealed enclosure 1 so as to pressurize said bundles of plates 10 and 40.
  • the means for outputting the third fluid C from the second bundle of plates 40 are formed by a tube 47 passing in leaktight manner through the enclosure 1 and connected to a manifold 48 disposed at the outlet of the circuit c of said second bundle of plates 40.
  • the circulation of fluids A and C in the second bundle of plates 40 is against the current so that the inlets of fluids A and C are located on opposite ends of the second bundle of plates 40.
  • the circulation of the fluids A and C in the second bundle of plates 40 can be co-current and in this case the inflows of the fluids
  • a and C are located on the same end of the second bundle of plates 40.
  • the means for holding the first bundle of plates 10 are arranged at the outlet of the fluid A from this bundle of plates 10 and the means for holding the second bundle of plates 40 are arranged at the entry of fluid A into this bundle of plates 40.
  • the means for holding the first bundle of plates 10 comprise two plates, respectively 25 and 26, having substantially the shape of a half-disc.
  • These plates 25 and 26 include stiffening spacers 27 welded to said plates.
  • the plates 25 and 26 and the spacers 27 are connected to the collectors 16 and 18, for example by welding.
  • the means for holding the first bundle of plates 10 also comprise two plates, respectively 28 and 29, having substantially the shape of a half-disc.
  • These plates 28 and 29 also include stiffening spacers 30 fixed to said plates by welding.
  • the plates 28 and 29 are fixed by means of their external edges to the internal wall of the sealed enclosure 1, for example by welding.
  • the plates 25 and 26 support the first bundle of plates 10 and rest on the plates 28 and 29 integral with the sealed enclosure 1 which allows expansion of the first bundle of plates 10 towards the inlet of the first fluid A, c 'is to say towards the end of the sealed enclosure 1.
  • the means for holding the second bundle of plates 40 comprise two plates, respectively 50 and 51, having substantially the shape of a half-disc and with stiffening spacers 52.
  • the plates 50 and 51 as well as the spacers 52 are fixed to the collectors 43 and 48, for example by welding.
  • the means for holding the second bundle of plates 40 also comprise two plates, respectively 53 and 54, having substantially the shape of a half-disc and provided with stiffening spacers 55 fixed on said plates 53 and 54 by welding.
  • the plates 50 and 51 secured to the second bundle of plates 40 rest on the plates 53 and 54 secured to the sealed enclosure 1 which allows the second bundle of plates 40 to expand towards the outlet of the first fluid A from this second bundle of plates 40, that is to say towards the end of the sealed enclosure 1.
  • the bundles of plates 10 and 40 can expand mainly in two opposite directions thereby reducing any stress on the connecting pipe 15 between these two bundles of plates 10 and 40.
  • the first fluid A to be heated or cooled is introduced through the pipe 13 and through the manifold 14 into the circuit a of the first bundle of plates 10.
  • This fluid A circulates in the circuit a over the entire length of the first bundle of plates 10.
  • the second fluid B is introduced via the tubing 17 and the manifold 18 into circuit b of the first bundle of plates 10.
  • This fluid B circulates over the entire length of the first bundle of plates 10 and leaves the heat exchange installation via the manifold 20 and the outlet pipe 19.
  • the third fluid C leaves the circuit c of the second bundle of plates 40 through the manifold 48 and the outlet pipe 47.
  • the fluid A thus cooled or heated leaves the heat exchange installation via the manifold 45 and the tubing 44.
  • the envelope constituting the sealed enclosure 1 provides airtightness to the atmosphere and allows external pressurization of the bundles of plates 10 and 40 by the fluid C which is introduced into the sealed enclosure 1.
  • the heat exchange installation according to the invention makes it possible to obtain a large differential between the inlet temperature of the main fluid and its outlet temperature and therefore to increase the yields, while reducing the overall size by 1 ' installation.

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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)
  • Physical Or Chemical Processes And Apparatus (AREA)

Abstract

PCT No. PCT/FR97/01225 Sec. 371 Date Mar. 31, 1999 Sec. 102(e) Date Mar. 31, 1999 PCT Filed Jul. 7, 1997 PCT Pub. No. WO98/03831 PCT Pub. Date Jan. 29, 1998An apparatus for exchanging heat between at least three fluids includes an elongate sealed chamber having at least two separate plate cores arranged inside the sealed chamber and means for supporting each of the plate cores inside the scaled chamber. Each of the plate cores are provided with circuits for two separate fluids, fluid inlet and outlet means for the respective circuits of the plate cores, and connecting means enabling fluid circulation between the plate cores.

Description

" Installation d'échange thermique entre au -moins trois fluides". "Heat exchange installation between at least three fluids".
La présente invention a pour objet une installation d'échange thermique utilisée pour refroidir ou réchauffer un premier fluide par échange thermique avec au moins deux autres fluides. Les installations d'échange thermique comportent des échangeurs thermiques qui sont généralement de deux types .The present invention relates to a heat exchange installation used to cool or heat a first fluid by heat exchange with at least two other fluids. The heat exchange installations include heat exchangers which are generally of two types.
Le premier type d'échangeur thermique comporte un faisceau de tubes en forme de U ou un faisceau de tubes droits dans lequel circule un des fluides .The first type of heat exchanger comprises a bundle of U-shaped tubes or a bundle of straight tubes in which one of the fluids circulates.
Mais ce type d'échangeur est d'une conception coûteuse et le rendement thermique est limité compte tenu que le nombre de tubes dépend de la place disponible qui est dans la plupart des cas restreinte.However, this type of exchanger is of an expensive design and the thermal efficiency is limited, given that the number of tubes depends on the space available which is in most cases limited.
Le second type d'échangeur thermique comporte une enceinte étanche dans laquelle est placé un faisceau de plaques disposées jointivement et parallèlement les unes aux autres. Les plaques constituées de tôles fines, le plus souvent en acier inoxydable, comportent des bords à surface lisse et une partie centrale munie d'ondulations par lesquelles elles sont en contact les unes sur les autres et par lesquelles elles délimitent des canaux formant des circuits de circulation de fluides indépendants .The second type of heat exchanger comprises a sealed enclosure in which is placed a bundle of plates arranged contiguously and parallel to each other. The plates made of thin sheets, most often made of stainless steel, have edges with a smooth surface and a central part provided with corrugations by which they are in contact with each other and by which they delimit channels forming circuits of circulation of independent fluids.
Ce type d'échangeur thermique à faisceaux de plaques fonctionne avec divers fluides comme par exemple des liquides ou des gaz ou un mélange biphasique. Avec ce type d'échangeur à plaques, faisant circuler les deux fluides dans les circuits respectifs, il se produit un échange thermique entre ces deux fluides ce qui permet de réchauffer l'un des fluides et de refroidir l'autre fluide ou inversement.This type of plate bundle heat exchanger works with various fluids such as liquids or gases or a two-phase mixture. With this type of plate heat exchanger, circulating the two fluids in the respective circuits, there is a heat exchange between these two fluids which allows to heat one of the fluids and cool the other fluid or vice versa.
Pour certaines applications industrielles, il est nécessaire d'obtenir une différence de température importante du fluide à réchauffer ou à refroidir entre son entrée et sa sortie de l'échangeur à plaques.For certain industrial applications, it is necessary to obtain a significant temperature difference of the fluid to be heated or cooled between its inlet and its outlet from the plate exchanger.
C'est pourquoi plusieurs échangeurs à plaques sont, dans ce cas, placés les uns à la suite des autres.This is why several plate heat exchangers are, in this case, placed one after the other.
Chaque échangeur thermique à plaques est constitué d'une enceinte étanche dans laquelle est disposé un faisceau de plaques délimitant deux circuits dont l'un est destiné au fluide principal à réchauffer ou à refroidir.Each plate heat exchanger consists of a sealed enclosure in which is disposed a bundle of plates delimiting two circuits, one of which is intended for the main fluid to be heated or cooled.
Ces circuits principaux des différents faisceaux de plaques sont reliés entre eux par des conduites de liaison qui traversent chaque enceinte de manière étanche de façon à réaliser une circulation continue du fluide principal dans les différents faisceaux de plaques .These main circuits of the various bundles of plates are interconnected by connecting pipes which pass through each enclosure in a sealed manner so as to produce a continuous circulation of the main fluid in the various bundles of plates.
De ce fait, la surface au sol nécessaire à ce genre d'installation est importante et le coût pour sa fabrication et sa maintenance est également important.Therefore, the floor space required for this type of installation is important and the cost for its manufacture and maintenance is also important.
De plus, les conduites de liaison entre les différents échangeurs pour le transfert du fluide principal entre ces échangeurs constituent des zones de perte de charge inutiles et parasites et des zones de perte de calories ce qui diminue les rendements de l'installation d'échange thermique.In addition, the connecting pipes between the different exchangers for the transfer of the main fluid between these exchangers constitute unnecessary and parasitic pressure drop zones and calorie loss zones which reduces the yields of the heat exchange installation. .
L'invention a pour but d'éviter les inconvénients précédemment mentionnés en proposant une installa- tion d'échange thermique compacte qui permet de diminuer les pertes de charge ainsi que le poids et l'encombrement de cette installation et d'augmenter les rendements.The object of the invention is to avoid the drawbacks mentioned above by proposing a compact heat exchange installation which makes it possible to reduce the pressure losses as well as the weight and the size of this installation and to increase the yields.
L'invention a donc pour objet une installation d'échange thermique entre au moins trois fluides, caractérisée en ce qu'elle comprend : - une enceinte étanche de forme allongée,The invention therefore relates to a heat exchange installation between at least three fluids, characterized in that it comprises: - an elongated sealed enclosure,
- au moins deux faisceaux de plaques séparés et disposés à l'intérieur de l'enceinte étanche et formés chacun par un empilement de plaques métalliques d'échange thermique munies d'ondulations et délimitant entres elles deux circuits de circulation de deux fluides indépendants,- at least two beams of separate plates arranged inside the sealed enclosure and each formed by a stack of metal heat exchange plates provided with corrugations and delimiting between them two circulation circuits of two independent fluids,
- des moyens d'entrée d'un premier fluide dans le circuit correspondant du premier faisceau de plaques,means for entering a first fluid into the corresponding circuit of the first bundle of plates,
- des moyens de liaison d'un circuit du premier faisceau de plaques avec un circuit du second faisceau de plaques pour la circulation du premier fluide entre les deux faisceaux de plaques, - des moyens de sortie dudit premier fluide du circuit correspondant du second faisceau de plaques,- means for connecting a circuit of the first bundle of plates with a circuit of the second bundle of plates for the circulation of the first fluid between the two bundles of plates, - means for output of said first fluid from the corresponding circuit of the second bundle of plates,
- des moyens d'entrée et de sortie d'un second fluide dans le circuit correspondant du premier faisceau de plaques, - des moyens d'entrée et de sortie d'un troisième fluide dans le circuit correspondant du second faisceau de plaques,- means for entering and leaving a second fluid in the corresponding circuit of the first bundle of plates, - means for entering and leaving a third fluid in the corresponding circuit of the second bundle of plates,
- des moyens de maintien de chaque faisceau de plaques dans ladite enceinte étanche. Selon d'autres caractéristiques de l'invention :- Means for holding each bundle of plates in said sealed enclosure. According to other characteristics of the invention:
- les moyens d'entrée du premier fluide sont formés par une tubulure traversant l'enceinte étanche et reliée à un collecteur disposé sur l'entrée du circuit correspondant du premier faisceau de plaques,the means for entering the first fluid are formed by a tube passing through the sealed enclosure and connected to a collector disposed on the inlet of the corresponding circuit of the first bundle of plates,
- les moyens de liaison pour la circulation du premier fluide entre les deux faisceaux de plaques sont formés par une tubulure reliée par l'une de ses extrémités à un collecteur disposé sur la sortie du circuit correspondant du premier faisceau de plaques et par l'autre de ses extrémités à un collecteur disposé sur l'entrée du circuit correspondant du second faisceau de plaques,the connecting means for the circulation of the first fluid between the two bundles of plates are formed by a tube connected by one of its ends to a manifold disposed on the outlet of the corresponding circuit of the first bundle of plates and by the other of its ends to a collector arranged on the input of the corresponding circuit of the second bundle of plates,
- les moyens de sortie du premier fluide sont formés par une tubulure traversant l'enceinte étanche et reliée à un collecteur disposé sur la sortie du circuit correspondant du second faisceau de plaques,the means for leaving the first fluid are formed by a tube passing through the sealed enclosure and connected to a collector disposed on the outlet of the corresponding circuit of the second bundle of plates,
- les moyens d'entrée du second fluide du premier faisceau de plaques sont formés par une tubulure traversant l'enceinte étanche et reliée à un collecteur disposé sur l'entrée du circuit correspondant du premier faisceau de plaques,the means for entering the second fluid of the first bundle of plates are formed by a tube passing through the sealed enclosure and connected to a manifold disposed on the input of the corresponding circuit of the first bundle of plates,
- les moyens de sortie du second fluide du premier faisceau de plaques sont formés par une tubulure traversant l'enceinte étanche et reliée à un collecteur disposé sur la sortie du circuit correspondant du premier faisceau de plaques,the means for outputting the second fluid from the first bundle of plates are formed by a tube passing through the sealed enclosure and connected to a collector disposed on the output of the corresponding circuit of the first bundle of plates,
- les entrées des circuits de circulation du premier fluide et du second fluide dans le premier faisceau de plaques sont situées sur la même extrémité dudit premier faisceau de plaques pour une circulation co-courante desdits fluides,the inputs of the circulation circuits of the first fluid and of the second fluid into the first bundle of plates are located on the same end of said first bundle of plates for a co-current circulation of said fluids,
- les entrées des circuits de circulation du premier fluide et du second fluide dans le premier faisceau de plaques sont situées respectivement sur une extrémité opposée dudit premier faisceau de plaques pour une circulation à contre-courant desdits fluides,the inputs of the circuits for circulation of the first fluid and of the second fluid in the first bundle of plates are located respectively on an opposite end of said first bundle of plates for a counter-current circulation of said fluids,
- les moyens d'entrée du troisième fluide sont formés par une tubulure débouchant dans l'enceinte étanche et communiquant avec l'entrée du circuit correspondant du second faisceau de plaques,the means for entering the third fluid are formed by a tube opening into the sealed enclosure and communicating with the inlet of the corresponding circuit of the second bundle of plates,
- les moyens de sortie du troisième fluide sont formés par une tubulure traversant l'enceinte étanche et reliée à un collecteur disposé sur la sortie du circuit correspondant du second faisceau de plaques, - les entrées des circuits de circulation du premier fluide et du troisième fluide dans le second faisceau de plaques sont situées sur la même extrémité dudit second faisceau de plaques pour une circulation co-courante desdits fluides,the means for outputting the third fluid are formed by a tube passing through the sealed enclosure and connected to a collector disposed on the output of the corresponding circuit of the second bundle of plates, the inputs of the circuits for circulation of the first fluid and of the third fluid in the second bundle of plates are located on the same end of said second bundle of plates for a co-current circulation of said fluids,
- les entrés des circuits de circulation du premier fluide et du troisième fluide dans le second faisceau de plaques sont situées respectivement sur une extrémité opposée dudit second faisceau de plaques pour une circulation à contre-courant desdits fluides,the inputs of the circuits for circulation of the first fluid and of the third fluid in the second bundle of plates are located respectively on an opposite end of said second bundle of plates for a counter-current circulation of said fluids,
- les moyens de maintien du premier faisceau de plaques sont disposés au niveau de la sortie du premier fluide dudit faisceau de plaques et comportent, d'une part, deux platines ayant sensiblement la forme d'un demi-disque, liées aux collecteurs correspondants et, d'autre part, deux platines ayant sensiblement la forme d'un demi-disque, liées à la paroi interne de l'enceinte étanche, lesdites platines étant en appui l'une sur l'autre et permettant une dilatation dudit premier faisceau de plaques vers l'entrée du premier fluide,the means for holding the first bundle of plates are arranged at the outlet of the first fluid from said bundle of plates and comprise, on the one hand, two plates having substantially the shape of a half-disc, linked to the corresponding collectors and , on the other hand, two plates having substantially the shape of a half-disc, linked to the internal wall of the sealed enclosure, said plates being in abutment one on the other and allowing expansion of said first bundle of plates towards the inlet of the first fluid,
- les moyens de maintien du second faisceau de plaques sont disposés au niveau de l'entrée du premier fluide dans ledit faisceau de plaques et comportent, d'une part, deux platines ayant sensiblement la forme d'un demi-disque, liées aux collecteurs correspondants et, d'autre part, deux platines ayant sensiblement la forme d'un demi-disque, liées à la paroi interne de l'enceinte étanche, lesdites platines étant en appui l'une sur l'autre et permettant une dilatation dudit second faisceau de plaques vers la sortie du premier fluide.the means for holding the second bundle of plates are arranged at the entry of the first fluid into said bundle of plates and comprise, on the one hand, two plates having substantially the shape of a half-disc, linked to the collectors correspondents and, on the other hand, two plates having substantially the shape of a half-disc, linked to the internal wall of the sealed enclosure, said plates being in abutment one on the other and allowing expansion of said second bundle of plates towards the outlet of the first fluid.
Les caractéristiques et avantages de l'invention apparaîtront au cours de la description qui va suivre, donnée uniquement à titre d'exemple et faite en référence aux dessins annexés, sur lesquels : - la Fig. 1 est une vue schématique en perspective partiellement arrachée d'une installation d'échange thermique selon l'invention,The characteristics and advantages of the invention will become apparent during the description which follows, given solely by way of example and made with reference to the accompanying drawings, in which: - FIG. 1 is a schematic view in partially cutaway perspective of a heat exchange installation according to the invention,
- la Fig. 2 est une vue schématique en coupe longitudinale de l'installation d'échange thermique selon l'invention,- Fig. 2 is a schematic view in longitudinal section of the heat exchange installation according to the invention,
- la Fig. 3 est une vue en coupe selon la ligne 3-3 de la Fig. 2,- Fig. 3 is a sectional view along line 3-3 of FIG. 2,
- la Fig. 4 est une vue schématique en coupe transversale d'une portion du premier faisceau de plaques de l'installation d'échange thermique selon l'invention,- Fig. 4 is a schematic cross-sectional view of a portion of the first bundle of plates of the heat exchange installation according to the invention,
- la Fig. 5 est une vue schématique en coupe transversale d'une portion du second faisceau de plaques de l'installation d'échange thermique selon l'invention,- Fig. 5 is a diagrammatic view in cross section of a portion of the second bundle of plates of the heat exchange installation according to the invention,
- la Fig. 6 est une vue en coupe longitudi- nale et à plus grande échelle montrant les moyens de maintien des faisceaux de plaques dans l'enceinte étanche .- Fig. 6 is a view in longitudinal section and on a larger scale showing the means for holding the bundles of plates in the sealed enclosure.
Sur les Figs . 1 à 3 , on a représenté une installation destinée à réaliser un échange thermique entre un premier fluide A constitué par un liquide ou un gaz ou mélange biphasique et au moins deux fluides B et C constitués chacun par un liquide ou un gaz ou un mélange biphasique.In Figs. 1 to 3, there is shown an installation intended to carry out a heat exchange between a first fluid A constituted by a liquid or a gas or biphasic mixture and at least two fluids B and C each constituted by a liquid or a gas or a biphasic mixture .
Cette installation d'échange thermique est destinée par exemple à refroidir le premier fluide A par les fluides B et C ou a réchauffer ce premier fluide A. Dans l'exemple de réalisation représenté sur les figures, le premier fluide A est refroidi par deux fluides respectivement B et C. Mais, ce premier fluide A peut être refroidi par plus de deux autres fluides.This heat exchange installation is intended for example to cool the first fluid A with fluids B and C or to heat this first fluid A. In the embodiment shown in the figures, the first fluid A is cooled by two fluids B and C respectively. However, this first fluid A can be cooled by more than two other fluids.
L'installation d'échange thermique représentée sur les Figs . 1 à 3 comprend une enceinte étanche l de forme allongée et de section par exemple circulaire. Cette enceinte étanche 1 est munie d'organes de support, non représentés, destinés à reposer sur une surface de réception et cette enceinte étanche 1 est de préférence disposée verticalement.The heat exchange installation shown in Figs. 1 to 3 comprises a sealed enclosure 1 of elongated shape and of circular section, for example. This sealed enclosure 1 is provided with organs support, not shown, intended to rest on a receiving surface and this sealed enclosure 1 is preferably arranged vertically.
A l'intérieur de l'enceinte étanche 1 sont disposés, d'une part, un premier faisceau de plaques désigné dans son ensemble par la référence 10 et, d'autre part, un second faisceau de plaques désigné dans son ensemble par la référence 40.Inside the sealed enclosure 1 are arranged, on the one hand, a first bundle of plates designated as a whole by the reference 10 and, on the other hand, a second bundle of plates designated as a whole by the reference 40.
Les faisceaux de plaques 10 et 40 sont séparés l'un de l'autre.The bundles of plates 10 and 40 are separated from each other.
Le premier faisceau de plaques 10 présente une forme générale parallélépipèdique et constitue la surface d'échange nécessaire au transfert thermique entre les fluides A et B. Comme représenté à la Fig. 4, le premier faisceau de plaques 10 est formé par un empilement de plaques 11 métalliques de faible épaisseur et par exemple en acier inoxydable, munies d'ondulations 12.The first bundle of plates 10 has a generally parallelepiped shape and constitutes the exchange surface necessary for the heat transfer between the fluids A and B. As shown in FIG. 4, the first bundle of plates 10 is formed by a stack of thin metal plates 11 and for example of stainless steel, provided with corrugations 12.
Les plaques 11 du faisceau de plaques 10 sont parallèles les unes aux autres et sont en contact entre elles au niveau des ondulations 12 de façon à délimiter des canaux formant des circuits de circulation de fluides indépendants.The plates 11 of the plate bundle 10 are parallel to each other and are in contact with each other at the level of the corrugations 12 so as to delimit channels forming independent fluid circulation circuits.
Ces plaques 11 forment entres elles un premier circuit a longitudinal pour le premier fluide A, s' étendant sur toute la longueur du faisceau de plaques 10 et un second circuit b longitudinal pour le second fluide B, s 'étendant également sur toute la longueur du faisceau de plaques 10. Le second faisceau de plaques 40 présente une forme générale parallélépipèdique et constitue la surface d'échange nécessaire au transfert thermique entre les fluides A et C.These plates 11 form between them a first longitudinal circuit for the first fluid A, extending over the entire length of the bundle of plates 10 and a second longitudinal circuit b for the second fluid B, also extending over the entire length of the bundle of plates 10. The second bundle of plates 40 has a generally parallelepiped shape and constitutes the exchange surface necessary for the heat transfer between the fluids A and C.
Ainsi que représenté à la Fig. 5, ce second faisceau de plaques 40 est formé par un empilement de plaques 41 métallique, de faible épaisseur et par exemple en acier inoxydable, munies d'ondulations 42.As shown in FIG. 5, this second bundle of plates 40 is formed by a stack of metal plates 41, of small thickness and for example of stainless steel, provided with corrugations 42.
Les plaques 41 du faisceau de plaques 40 sont parallèles les unes aux autres et sont en contact entre elles au niveau des ondulations 42 de façon à délimiter des canaux formant des circuits de circulation de fluides indépendants .The plates 41 of the plate bundle 40 are parallel to each other and are in contact with each other at the level of the corrugations 42 so as to delimit channels forming independent fluid circulation circuits.
Ces plaques 41 forment entre elles un premier circuit a longitudinal pour le premier fluide A, s'éten- dant sur toute la longueur du faisceau de plaques 40 et un second circuit c longitudinal pour le troisième fluide C, s'étendant également sur toute la longueur du faisceau de plaques 40.These plates 41 form between them a first longitudinal circuit for the first fluid A, extending over the entire length of the bundle of plates 40 and a second longitudinal circuit c for the third fluid C, also extending over the entire length of the plate bundle 40.
Par ailleurs, l'installation d'échange thermique comprend également :In addition, the heat exchange installation also includes:
- des moyens d'entrée du premier fluide A dans le circuit a du premier faisceau de plaques 10,means for entering the first fluid A into the circuit a of the first bundle of plates 10,
- des moyens de liaison du circuit a du premier faisceau de plaques 10 avec le circuit a du second faisceau de plaques 40 pour la circulation du premier fluide A entre lesdits faisceaux de plaques 10 et 40,means for connecting the circuit a of the first bundle of plates 10 with the circuit a of the second bundle of plates 40 for the circulation of the first fluid A between said bundles of plates 10 and 40,
- des moyens de sortie du premier fluide A du circuit a du second faisceau de plaques 40, - des moyens d'entrée et de sortie du second fluide B du circuit b correspondant du premier faisceau de plaques 10, des moyens d'entrée et de sortie du troisième fluide C du circuit c correspondant du second faisceau de plaques 40, et des moyens de maintien de chaque faisceau de plaques 10 et 40 dans ladite enceinte étanche l.- means for leaving the first fluid A from circuit a from the second bundle of plates 40, - means for entering and leaving the second fluid B from circuit b corresponding to the first bundle of plates 10, means for entering and outlet of the third fluid C from the corresponding circuit c of the second bundle of plates 40, and means for holding each bundle of plates 10 and 40 in said sealed enclosure l.
Ainsi que représenté sur les Figs. 1 à 3, les moyens d'entrée du premier fluide A dans le circuit a du premier faisceau de plaques 10 sont formés par une tubulure 13 traversant de manière étanche l'enceinte 1 et reliée à un collecteur 14 disposé sur l'entrée du circuit a du premier faisceau de plaques 10. Les moyens de liaison pour la circulation du premier fluide A entre les deux faisceaux de plaques 10 et 40 sont formés par une tubulure 15 reliée par l'une de ses extrémités à un collecteur 16 disposé sur la sortie du circuit a du premier faisceau de plaques 10 et par l'autre de ses extrémités à un collecteur 43 disposé sur l'entrée du circuit a du second faisceau de plaques 40.As shown in Figs. 1 to 3, the means for entering the first fluid A into the circuit a first bundle of plates 10 are formed by a tube 13 passing in leaktight manner enclosure 1 and connected to a manifold 14 disposed on the inlet of circuit a of the first bundle of plates 10. The connecting means for the circulation of the first fluid A between the two bundles of plates 10 and 40 are formed by a tube 15 connected by one of its ends to a manifold 16 disposed on the outlet of the circuit a of the first bundle of plates 10 and by the other of its ends to a collector 43 placed on the input of the circuit a of the second bundle of plates 40.
Les moyens de sortie du premier fluide A du second faisceau de plaques 40 sont formés par une tubulure 44 traversant de manière étanche l'enceinte 1 et reliée à un collecteur 45 disposé sur la sortie du circuit a dudit second faisceau de plaques 40.The means for outputting the first fluid A from the second bundle of plates 40 are formed by a tube 44 passing in leaktight manner through the enclosure 1 and connected to a manifold 45 disposed on the outlet of the circuit a of said second bundle of plates 40.
Les moyens d'entrée du second fluide B dans le premier faisceau de plaques 10 sont formés par une tubulure 17 traversant de manière étanche l'enceinte 1 et reliée à un collecteur 18 disposé sur l'entrée du circuit b dudit premier faisceau de plaques 10.The means of entry of the second fluid B into the first bundle of plates 10 are formed by a tube 17 passing in leaktight manner the enclosure 1 and connected to a manifold 18 disposed on the inlet of circuit b of said first bundle of plates 10 .
Les moyens de sortie du second fluide B du premier faisceau de plaques 10 sont formés par une tubulure 19 traversant de manière étanche l'enceinte 1 et reliée à un collecteur 20 disposé sur la sortie du circuit b dudit premier faisceau de plaques 10.The means for outputting the second fluid B from the first bundle of plates 10 are formed by a tube 19 passing in leaktight manner through the enclosure 1 and connected to a manifold 20 disposed on the outlet of the circuit b of said first bundle of plates 10.
Dans l'exemple de réalisation représenté sur les figures, la circulation des fluides A et B dans le premier faisceau de plaques 10 est à contre-courant et, par conséquent, l'entrée du fluide A et la sortie du fluide B sont situées sur la même extrémité du faisceau de plaques 10 et la sortie du fluide A et l'entrée du fluide B sont situées sur l'extrémité opposée dudit faisceau de plaques 10. Selon une variante, la circulation des fluides A et B dans le premier faisceau de plaques 10 peut être co-courante et dans ce cas les entrées des fluides A et B sont situées sur la même extrémité dudit premier faisceau de plaques 10.In the embodiment shown in the figures, the circulation of fluids A and B in the first bundle of plates 10 is against the current and, consequently, the inlet for fluid A and the outlet for fluid B are located on the same end of the bundle of plates 10 and the outlet of the fluid A and the inlet of the fluid B are located on the opposite end of the said bundle of plates 10. According to a variant, the circulation of the fluids A and B in the first bundle of plates 10 can be co-current and in this case the inlets of the fluids A and B are located on the same end of said first bundle of plates 10.
Dans ce cas, les sorties des fluides A et B sont également situées sur la même extrémité de ce premier faisceau de plaques 10.In this case, the outlets of the fluids A and B are also located on the same end of this first bundle of plates 10.
Les moyens d'entrée du troisième fluide C dans le second faisceau de plaques 40 sont formés par une tubulure 46 débouchant dans l'enceinte étanche 1 et communiquant avec l'entrée du circuit c dudit second faisceau de plaques 40.The means of entry of the third fluid C into the second bundle of plates 40 are formed by a tube 46 opening into the sealed enclosure 1 and communicating with the inlet of the circuit c of said second bundle of plates 40.
Le troisième fluide C circule donc dans le circuit c du second faisceau de plaques 40 et est également diffusé à l'intérieur de l'enceinte étanche 1 de façon à pressuriser lesdits faisceaux de plaques 10 et 40.The third fluid C therefore circulates in circuit c of the second bundle of plates 40 and is also diffused inside the sealed enclosure 1 so as to pressurize said bundles of plates 10 and 40.
Les moyens de sortie du troisième fluide C du second faisceau de plaques 40 sont formés par une tubulure 47 traversant de manière étanche l'enceinte 1 et reliée à un collecteur 48 disposé sur la sortie du circuit c dudit second faisceau de plaques 40.The means for outputting the third fluid C from the second bundle of plates 40 are formed by a tube 47 passing in leaktight manner through the enclosure 1 and connected to a manifold 48 disposed at the outlet of the circuit c of said second bundle of plates 40.
Dans l'exemple de réalisation représenté sur les figures, la circulation des fluides A et C dans le second faisceau de plaques 40 est à contre-courant si bien que les entrées des fluides A et C sont situées sur des extrémités opposées du second faisceau de plaques 40.In the embodiment shown in the figures, the circulation of fluids A and C in the second bundle of plates 40 is against the current so that the inlets of fluids A and C are located on opposite ends of the second bundle of plates 40.
Selon une variante, la circulation des fluides A et C dans le second faisceau de plaques 40 peut être co-courante et dans ce cas les entrées des fluidesAccording to a variant, the circulation of the fluids A and C in the second bundle of plates 40 can be co-current and in this case the inflows of the fluids
A et C sont situées sur la même extrémité du second faisceau de plaques 40.A and C are located on the same end of the second bundle of plates 40.
En se reportant maintenant à la Fig. 6, on va décrire les moyens de maintien des faisceaux de plaques 10 et 40 à l'intérieur de l'enceinte étanche 1.Referring now to FIG. 6, we will describe the means for holding the plate bundles 10 and 40 inside the sealed enclosure 1.
Comme représenté sur cette figure, les moyens de maintien du premier faisceau de plaques 10 sont disposés au niveau de la sortie du fluide A de ce faisceau de plaques 10 et les moyens de maintien du second faisceau de plaques 40 sont disposés au niveau de l'entrée du fluide A dans ce faisceau de plaques 40.As shown in this figure, the means for holding the first bundle of plates 10 are arranged at the outlet of the fluid A from this bundle of plates 10 and the means for holding the second bundle of plates 40 are arranged at the entry of fluid A into this bundle of plates 40.
Les moyens de maintien du premier faisceau de plaques 10 comprennent deux platines, respectivement 25 et 26, ayant sensiblement la forme d'un demi-disque.The means for holding the first bundle of plates 10 comprise two plates, respectively 25 and 26, having substantially the shape of a half-disc.
Ces platines 25 et 26 comportent des entretoises de rigidification 27 soudées sur lesdites platines .These plates 25 and 26 include stiffening spacers 27 welded to said plates.
Les platines 25 et 26 et les entretoises 27 sont reliées aux collecteurs 16 et 18, par exemple par soudage .The plates 25 and 26 and the spacers 27 are connected to the collectors 16 and 18, for example by welding.
Les moyens de maintien du premier faisceau de plaques 10 comprennent également deux platines, respectivement 28 et 29, ayant sensiblement la forme d'un demi- disque.The means for holding the first bundle of plates 10 also comprise two plates, respectively 28 and 29, having substantially the shape of a half-disc.
Ces platines 28 et 29 comportent également des entretoises de rigidification 30 fixées sur lesdites platines par soudage.These plates 28 and 29 also include stiffening spacers 30 fixed to said plates by welding.
Les platines 28 et 29 sont fixées par l'intermédiaire de leurs bords extérieurs sur la paroi interne de l'enceinte étanche 1, par exemple par soudage.The plates 28 and 29 are fixed by means of their external edges to the internal wall of the sealed enclosure 1, for example by welding.
Ainsi, les platines 25 et 26 supportent le premier faisceau de plaques 10 et reposent sur les platines 28 et 29 solidaires de l'enceinte étanche 1 ce qui autorise une dilatation du premier faisceau de plaques 10 vers l'entrée du premier fluide A, c'est à dire vers l'extrémité de l'enceinte étanche 1.Thus, the plates 25 and 26 support the first bundle of plates 10 and rest on the plates 28 and 29 integral with the sealed enclosure 1 which allows expansion of the first bundle of plates 10 towards the inlet of the first fluid A, c 'is to say towards the end of the sealed enclosure 1.
Les moyens de maintien du second faisceau de plaques 40 comprennent deux platines, respectivement 50 et 51, ayant sensiblement le forme d'un demi-disque et munies d' entretoises de rigidification 52.The means for holding the second bundle of plates 40 comprise two plates, respectively 50 and 51, having substantially the shape of a half-disc and with stiffening spacers 52.
Les platines 50 et 51 ainsi que les entre- toises 52 sont fixées sur les collecteurs 43 et 48, par exemple par soudage. D'autre part, les moyens de maintien du second faisceau de plaques 40 comprennent également deux platines, respectivement 53 et 54, ayant sensiblement la forme d'un demi-disque et munies d' entretoises de rigidification 55 fixées sur lesdites platines 53 et 54 par soudage.The plates 50 and 51 as well as the spacers 52 are fixed to the collectors 43 and 48, for example by welding. On the other hand, the means for holding the second bundle of plates 40 also comprise two plates, respectively 53 and 54, having substantially the shape of a half-disc and provided with stiffening spacers 55 fixed on said plates 53 and 54 by welding.
Ces platines 53 et 54 sont fixées par l'intermédiaire de leurs bords extérieurs sur la paroi interne de l'enceinte 1 par exemple par soudage.These plates 53 and 54 are fixed by means of their external edges to the internal wall of the enclosure 1, for example by welding.
Ainsi, les platines 50 et 51 solidaires du second faisceau de plaques 40 reposent sur les platines 53 et 54 solidaires de l'enceinte étanche 1 ce qui autorise une dilatation du second faisceau de plaques 40 vers la sortie du premier fluide A de ce second faisceau de plaques 40, c'est à dire vers l'extrémité de l'en- ceinte étanche 1.Thus, the plates 50 and 51 secured to the second bundle of plates 40 rest on the plates 53 and 54 secured to the sealed enclosure 1 which allows the second bundle of plates 40 to expand towards the outlet of the first fluid A from this second bundle of plates 40, that is to say towards the end of the sealed enclosure 1.
Grâce à cette disposition, lors du fonctionnement de l'installation d'échange thermique, les faisceaux de plaques 10 et 40 peuvent se dilater principalement dans deux directions opposées réduisant de ce fait toute contrainte au niveau de la tubulure de liaison 15 entre ces deux faisceaux de plaques 10 et 40.Thanks to this arrangement, during the operation of the heat exchange installation, the bundles of plates 10 and 40 can expand mainly in two opposite directions thereby reducing any stress on the connecting pipe 15 between these two bundles of plates 10 and 40.
Lors du fonctionnement de l'installation d'échange thermique, le premier fluide A à réchauffer ou à refroidir est introduit par la tubulure 13 et par le collecteur 14 dans le circuit a du premier faisceau de plaques 10.During operation of the heat exchange installation, the first fluid A to be heated or cooled is introduced through the pipe 13 and through the manifold 14 into the circuit a of the first bundle of plates 10.
Ce fluide A circule dans le circuit a sur toute la longueur du premier faisceau de plaques 10.This fluid A circulates in the circuit a over the entire length of the first bundle of plates 10.
Le second fluide B est introduit par l'm- termédiaire de la tubulure 17 et du collecteur 18 dans le circuit b du premier faisceau de plaques 10.The second fluid B is introduced via the tubing 17 and the manifold 18 into circuit b of the first bundle of plates 10.
Ce fluide B circule sur toute la longueur du premier faisceau de plaques 10 et sort de l'installation d'échange thermique par le collecteur 20 et la tubulure de sortie 19.This fluid B circulates over the entire length of the first bundle of plates 10 and leaves the heat exchange installation via the manifold 20 and the outlet pipe 19.
Au cours de la circulation des fluides A et B dans le premier faisceau de plaques 10, il se produit un échange thermique entre ces fluides ce qui permet de refroidir ou de réchauffer le premier fluide A. Ce premier fluide A pénètre ensuite dans le circuit a du second faisceau de plaques 40 en passant par le collecteur 16, la tubulure de liaison 15 et le collecteur 43 et circule sur toute la longueur dudit second faisceau de plaques 40. Le troisième fluide C est introduit dans le circuit c du second faisceau de plaques 40 par l'intermédiaire de la tubulure d'entrée 46 et circule sur toute la longueur de ce second faisceau de plaques 40.During the circulation of fluids A and B in the first bundle of plates 10, there is a heat exchange between these fluids which makes it possible to cool or heat the first fluid A. This first fluid A then enters the circuit a of the second bundle of plates 40 passing through the manifold 16, the connecting pipe 15 and the manifold 43 and circulates over the entire length of said second bundle of plates 40. The third fluid C is introduced into the circuit c of the second bundle of plates 40 via the inlet pipe 46 and flows over the entire length of this second bundle of plates 40.
Le troisième fluide C sort du circuit c du second faisceau de plaques 40 par le collecteur 48 et la tubulure de sortie 47.The third fluid C leaves the circuit c of the second bundle of plates 40 through the manifold 48 and the outlet pipe 47.
Au cours du passage des fluides A et C dans le second faisceau de plaques 40, il se produit un échange thermique entre ces fluides A et C ce qui permet de refroidir ou de réchauffer le fluide A.During the passage of the fluids A and C in the second bundle of plates 40, there is a heat exchange between these fluids A and C which makes it possible to cool or to heat the fluid A.
Le fluide A ainsi refroidi ou réchauffé sort de l'installation d'échange thermique par le collecteur 45 et la tubulure 44.The fluid A thus cooled or heated leaves the heat exchange installation via the manifold 45 and the tubing 44.
L'enveloppe constituant l'enceinte étanche 1 assure l'étancheité vers l'atmosphère et permet la pressurisation externe des faisceaux de plaques 10 et 40 par le fluide C qui est introduit dans l'enceinte étanche 1.The envelope constituting the sealed enclosure 1 provides airtightness to the atmosphere and allows external pressurization of the bundles of plates 10 and 40 by the fluid C which is introduced into the sealed enclosure 1.
Selon une variante, plusieurs faisceaux de plaques peuvent être disposés les uns à la suite des autres dans l'enceinte étanche.Alternatively, several bundles of plates can be arranged one after the other. others in the waterproof enclosure.
L'installation d'échange thermique selon l'invention permet d'obtenir une différentielle importante entre la température d'entrée du fluide principal et sa température de sortie et par conséquent d'augmenter les rendements, tout en diminuant l'encombrement de 1' installation. The heat exchange installation according to the invention makes it possible to obtain a large differential between the inlet temperature of the main fluid and its outlet temperature and therefore to increase the yields, while reducing the overall size by 1 ' installation.

Claims

REVENDICATIONS
1. Installation d'échange thermique entre au moins trois fluides A, B et C, caractérisée en ce qu'elle comprend : - une enceinte étanche (1) de forme allongée,1. A heat exchange installation between at least three fluids A, B and C, characterized in that it comprises: - a sealed enclosure (1) of elongated shape,
- au moins deux faisceaux de plaques (10 ; 40) séparés et disposés à l'intérieur de l'enceinte étanche (1) et formés chacun par un empilement de plaques métalliques (11 ; 41) d'échange thermique munies d'ondu- lations (12 ; 42) et délimitant entres elles deux circuits de circulation de deux fluides indépendants,- at least two bundles of plates (10; 40) separated and arranged inside the sealed enclosure (1) and each formed by a stack of metal plates (11; 41) heat exchange provided with lations (12; 42) and delimiting between them two circulation circuits of two independent fluids,
- des moyens d'entrée (13, 14) d'un premier fluide A dans le circuit correspondant du premier faisceau de plaques (10) , - des moyens de liaison (15, 16, 43) du premier faisceau de plaques (10) avec un circuit du second faisceau de plaques (40) pour la circulation du premier fluide A entre lesdits faisceaux de plaques (10; 40) , - des moyens de sortie (44, 45) dudit premier fluide A du circuit correspondant du second faisceau de plaques (40) ,- input means (13, 14) of a first fluid A in the corresponding circuit of the first bundle of plates (10), - connecting means (15, 16, 43) of the first bundle of plates (10) with a circuit of the second bundle of plates (40) for the circulation of the first fluid A between said bundles of plates (10; 40), - means of outlet (44, 45) of said first fluid A from the corresponding circuit of the second bundle of plates (40),
- des moyens d'entrée (17, 18) et de sortie (19, 20) d'un second fluide B du circuit correspondant du premier faisceau de plaques (10) ,- inlet (17, 18) and outlet (19, 20) means for a second fluid B from the corresponding circuit of the first bundle of plates (10),
- des moyens d'entrée (46) et de sortie (47, 48) d'un troisième fluide C du circuit correspondant du second faisceau de plaques (40) , et des moyens de maintien de chaque faisceau de plaques (10 ;40) dans ladite enceinte étanche (D .- inlet (46) and outlet (47, 48) means for a third fluid C from the corresponding circuit of the second bundle of plates (40), and means for holding each bundle of plates (10; 40) in said waterproof enclosure (D.
2. Installation selon la revendication 1, caractérisée en ce que les moyens d'entrée du premier fluide (A) sont formés par une tubulure (13) traversant l'enceinte étanche (1) et reliée à un collecteur (14) disposé sur l'entrée du circuit correspondant du premier faisceau de plaques (10) .2. Installation according to claim 1, characterized in that the means for entering the first fluid (A) are formed by a tube (13) passing through the sealed enclosure (1) and connected to a collector (14) disposed on the input of the corresponding circuit of the first bundle of plates (10).
3. Installation selon la revendication 1, caractérisée en ce que les moyens de liaison pour la circulation du premier fluide A entre les deux faisceaux de plaques (10 ; 40) sont formés par une tubulure (15) reliée par l'une de ses extrémités à un collecteur (16) disposé sur la sortie du circuit correspondant du premier faisceau de plaques (10) et par l'autre de ses extrémité à un collecteur (43) disposé sur l'entrée du circuit correspondant du second faisceau de plaques (40) .3. Installation according to claim 1, characterized in that the connecting means for the circulation of the first fluid A between the two bundles of plates (10; 40) are formed by a tube (15) connected by one of its ends to a collector (16) arranged on the output of the corresponding circuit of the first plate bundle (10) and by the other of its ends to a collector (43) arranged on the corresponding circuit output of the second plate bundle (40 ).
4. Installation selon la revendication 1, caractérisée en ce que les moyens de sortie du premier fluide A sont formés par une tubulure (44) traversant l'enceinte étanche (1) et reliée à un collecteur (45) disposé sur la sortie du circuit correspondant du second faisceau de plaques (40) .4. Installation according to claim 1, characterized in that the means for outputting the first fluid A are formed by a tube (44) passing through the sealed enclosure (1) and connected to a collector (45) disposed on the output of the circuit correspondent of the second bundle of plates (40).
5. Installation selon la revendication 1, caractérisée en ce que les moyens d'entrée du second fluide B dans le premier faisceau de plaques (10) sont formés par une tubulure (17) traversant l'enceinte étanche (1) et reliée à un collecteur (18) disposé sur l'entrée du circuit correspondant du premier faisceau de plaques (10) . 5. Installation according to claim 1, characterized in that the means for entering the second fluid B into the first bundle of plates (10) are formed by a tube (17) passing through the sealed enclosure (1) and connected to a collector (18) arranged on the input of the corresponding circuit of the first bundle of plates (10).
6. Installation selon la revendication 1, caractérisée en ce que les moyens de sortie du second fluide B du premier faisceau de plaques (10) sont formés par une tubulure (19) traversant l'enceinte étanche (1) et reliée à un collecteur (20) disposé sur la sortie du circuit correspondant du premier faisceau de plaques6. Installation according to claim 1, characterized in that the means for outputting the second fluid B from the first bundle of plates (10) are formed by a tube (19) passing through the sealed enclosure (1) and connected to a collector ( 20) arranged on the output of the corresponding circuit of the first bundle of plates
(10) .(10).
7. Installation selon les revendications 2 et7. Installation according to claims 2 and
5, caractérisée en ce que les entrées des circuits de circulation du premier fluide A et du second fluide B dans le premier faisceau de plaques (10) sont situées sur la même extrémité dudit premier faisceau de plaques (10) pour une circulation co-courante desdits fluides.5, characterized in that the inputs of the circulation circuits of the first fluid A and of the second fluid B in the first bundle of plates (10) are located on the same end of said first bundle of plates (10) for a co-current circulation of said fluids.
8. Installation selon les revendications 2 et 5, caractérisée en ce que les entrées des circuits de circulation du premier fluide A et du second fluide B dans le premier faisceau de plaques (10) sont situées respectivement sur une extrémité opposée dudit premier faisceau de plaques (10) pour une circulation à contre- courant desdits fluides. 8. Installation according to claims 2 and 5, characterized in that the inputs of the circulation circuits of the first fluid A and the second fluid B in the first bundle of plates (10) are located respectively on an opposite end of said first bundle of plates (10) for a counter-current circulation of said fluids.
9. Installation selon la revendication 1, caractérisée en ce que les moyens d'entrée du troisième fluide C sont formés par une tubulure (46) débouchant dans l'enceinte étanche (1) et communiquant avec l'entrée du circuit correspondant du second faisceau de plaques (40) .9. Installation according to claim 1, characterized in that the input means of the third fluid C are formed by a tube (46) opening into the sealed enclosure (1) and communicating with the input of the corresponding circuit of the second beam of plates (40).
10. Installation selon la revendication l, caractérisée en ce que les moyens de sortie du troisième fluide C sont formés par une tubulure (47) traversant l'enceinte étanche (1) et reliée à un collecteur (48) disposé sur la sortie du circuit correspondant du second faisceau de plaques (40) .10. Installation according to claim l, characterized in that the means for leaving the third fluid C are formed by a tube (47) passing through the sealed enclosure (1) and connected to a collector (48) disposed on the outlet of the circuit. correspondent of the second bundle of plates (40).
11. Installation selon les revendications 4 et 9, caractérisée en ce que les entrées des circuits de circulation du premier fluide A et du troisième fluide C dans le second faisceau de plaques (40) sont situées sur la même extrémité dudit second faisceau de plaques (40) pour une circulation co-courante desdits fluides.11. Installation according to claims 4 and 9, characterized in that the inputs of the circulation circuits of the first fluid A and the third fluid C in the second bundle of plates (40) are located on the same end of said second bundle of plates ( 40) for a co-current circulation of said fluids.
12. Installation selon les revendication 4 et 9, caractérisée en ce que les entrées des circuits de circulation du premier fluide A et du troisième fluide12. Installation according to claims 4 and 9, characterized in that the inputs of the circulation circuits of the first fluid A and the third fluid
C dans le second faisceau de plaques (40) sont situées respectivement sur une extrémité opposée dudit second faisceau de plaques (40) pour une circulation à contre- courant desdits fluides. C in the second bundle of plates (40) are located respectively on an opposite end of said second bundle of plates (40) for countercurrent circulation of said fluids.
13. Installation selon l'une quelconque des revendications précédentes, caractérisée en ce que les moyens de maintien du premier faisceau de plaques (10) sont disposés au niveau de la sortie du premier fluide A dudit faisceau de plaques (1) et comportent, d'une part, deux platines (25, 26) ayant sensiblement la forme d'un demi-disque, liées aux collecteurs (16, 18) correspondants et, d'autre part, deux platines (28, 29) ayant sensiblement la forme d'un demi -disque, liées à la paroi interne de l'enceinte étanche (1) , lesdites platines (25, 26 ; 28, 29) étant en appui l'une sur l'autre et permettant une dilatation dudit premier faisceau de plaques (10) vers l'entrée du premier fluide A.13. Installation according to any one of previous claims, characterized in that the means for holding the first bundle of plates (10) are arranged at the outlet of the first fluid A of said bundle of plates (1) and comprise, on the one hand, two plates (25, 26) having substantially the shape of a half-disc, linked to the corresponding collectors (16, 18) and, on the other hand, two plates (28, 29) having substantially the shape of a half-disc, linked to the internal wall of the sealed enclosure (1), said plates (25, 26; 28, 29) being in abutment one on the other and allowing said first bundle of plates (10) to expand towards the entrance of the first fluid A.
14. Installation selon l'une quelconque des revendications 1 à 12, caractérisée en ce que les moyens de maintien du second faisceau de plaques (40) sont disposés au niveau de l'entrée du premier fluide A dans ledit faisceau de plaques (40) et comportent, d'une part, deux platines (50, 51) ayant sensiblement la forme d'un demi-disque, liées aux collecteurs (43, 48) correspondant et, d'autre part, deux platines (53, 54) ayant sensiblement la forme d'un demi disque, liées à la paroi interne de l'enceinte étanche (1), lesdites platines (50, 51 ; 53, 54) étant en appui l'une sur l'autre et permettant une dilatation dudit second faisceau de plaques (40) vers la sortie du premier fluide (A) . 14. Installation according to any one of claims 1 to 12, characterized in that the means for holding the second bundle of plates (40) are arranged at the entry of the first fluid A into said bundle of plates (40) and comprise, on the one hand, two plates (50, 51) having substantially the shape of a half-disc, linked to the corresponding collectors (43, 48) and, on the other hand, two plates (53, 54) having substantially the shape of a half disc, linked to the internal wall of the sealed enclosure (1), said plates (50, 51; 53, 54) being supported one on the other and allowing said second to expand bundle of plates (40) towards the outlet of the first fluid (A).
EP97931891A 1996-07-19 1997-07-07 Apparatus for exchanging heat between at least three fluids Expired - Lifetime EP0912868B1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
FR9609115 1996-07-19
FR9609115A FR2751402B1 (en) 1996-07-19 1996-07-19 THERMAL EXCHANGE INSTALLATION BETWEEN AT LEAST THREE FLUIDS
PCT/FR1997/001225 WO1998003831A1 (en) 1996-07-19 1997-07-07 Apparatus for exchanging heat between at least three fluids

Publications (2)

Publication Number Publication Date
EP0912868A1 true EP0912868A1 (en) 1999-05-06
EP0912868B1 EP0912868B1 (en) 2001-06-20

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EP97931891A Expired - Lifetime EP0912868B1 (en) 1996-07-19 1997-07-07 Apparatus for exchanging heat between at least three fluids

Country Status (8)

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US (1) US6089313A (en)
EP (1) EP0912868B1 (en)
JP (1) JP4024862B2 (en)
AT (1) ATE202414T1 (en)
AU (1) AU3548397A (en)
DE (1) DE69705311T2 (en)
FR (1) FR2751402B1 (en)
WO (1) WO1998003831A1 (en)

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Also Published As

Publication number Publication date
JP4024862B2 (en) 2007-12-19
JP2000514914A (en) 2000-11-07
US6089313A (en) 2000-07-18
FR2751402A1 (en) 1998-01-23
AU3548397A (en) 1998-02-10
DE69705311T2 (en) 2001-11-22
WO1998003831A1 (en) 1998-01-29
ATE202414T1 (en) 2001-07-15
FR2751402B1 (en) 1998-10-09
EP0912868B1 (en) 2001-06-20
DE69705311D1 (en) 2001-07-26

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