EP0901602B1 - Echangeur de chaleur et appareil pour réaliser un cycle réversible - Google Patents

Echangeur de chaleur et appareil pour réaliser un cycle réversible Download PDF

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Publication number
EP0901602B1
EP0901602B1 EP97920477A EP97920477A EP0901602B1 EP 0901602 B1 EP0901602 B1 EP 0901602B1 EP 97920477 A EP97920477 A EP 97920477A EP 97920477 A EP97920477 A EP 97920477A EP 0901602 B1 EP0901602 B1 EP 0901602B1
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EP
European Patent Office
Prior art keywords
channels
heat exchanger
plate
main channels
main
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.)
Expired - Lifetime
Application number
EP97920477A
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German (de)
English (en)
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EP0901602A1 (fr
Inventor
Arthur FLÜCK
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Alenko AG
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Alenko AG
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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
    • F28D21/00—Heat-exchange apparatus not covered by any of the groups F28D1/00 - F28D20/00
    • F28D21/0017—Flooded core heat exchangers
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
    • 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
    • F28D9/0012—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 apparatus having an annular form
    • 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
    • F28D9/0031—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 paired plates touching each other
    • F28D9/0043—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 paired plates touching each other the plates having openings therein for circulation of at least one heat-exchange medium from one conduit to another
    • 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
    • F28F3/04—Elements or assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with recesses, with corrugations the means being integral with the element
    • 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
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B2339/00—Details of evaporators; Details of condensers
    • F25B2339/02—Details of evaporators
    • F25B2339/024—Evaporators with refrigerant in a vessel in which is situated a heat exchanger
    • F25B2339/0241—Evaporators with refrigerant in a vessel in which is situated a heat exchanger having plate-like elements
    • 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
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B2339/00—Details of evaporators; Details of condensers
    • F25B2339/04—Details of condensers
    • F25B2339/043—Condensers made by assembling plate-like or laminated elements
    • 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
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B39/00—Evaporators; Condensers
    • 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
    • F28D2021/0068—Other heat exchangers for particular applications; Heat exchange systems not otherwise provided for for refrigerant cycles
    • F28D2021/0071—Evaporators

Definitions

  • the invention relates to heat exchangers according to the preamble of claim 1 and a device for Perform a cycle.
  • Heat exchangers are designed to be as quick and complete as possible Heat transfer between two fluids with different Allow outlet temperatures. To do this the two fluids on both sides of heat-conducting contact surfaces guided. To have the largest possible active contact area to get the fluids mostly through complex channel systems guided. Tube bundle exchangers allow for the Heat exchange efficient ducting, but are very elaborately constructed. Are significantly easier to set up Plate heat exchanger. Plate heat exchangers are now known alternating between plates arranged in parallel Channels for one and the other fluid like this are arranged that similarly complex channel systems, such as arise with tube bundle exchangers. In particular, they are Channels for both fluids designed to last as long as possible and highly structured flow paths arise. The strong structured flow paths lead to undesirably high flow rates Flow resistance.
  • a plate heat exchanger is known from WO 95/17272 in which the first channel system is designed such that at least part of the channels as first and second Main channels for at least a first fluid through their entire length substantially along a first and a second main direction.
  • the flow resistance is used for pure liquids or gases downsized.
  • the phase transitions have been shown in this channel system to reduce the Flow, or to undesirably high flow resistances to lead.
  • Individual channel areas at least from one phase of at least one fluid or only poorly flowed, which leads to a reduction in the Heat exchange leads.
  • a heat exchanger as an evaporator resulting vapor bubbles in individual channel sections stay behind and the passage of gas and or Hinder liquid.
  • Corresponding problems arise when used as a capacitor, the passage hindrance from remaining drops.
  • the object of the invention is a simple structure Find heat exchangers that are also in use optimal heat exchange as an evaporator or condenser guaranteed.
  • the task is solved by realizing the General term features together with the characteristic features of claim 1 or by the features of the claim 8th.
  • the main directions are aligned for the operation that at least one main direction to the vertical one Includes angles that are less than 30 °, in particular is less than 20 °, optionally essentially 0 °. In addition, the angle between the two main directions is less than 60 °. Both main directions are preferably like this orientable that they are between 10 ° and 20 °, preferably both are inclined essentially by 15 ° to the vertical.
  • the first two connection areas of the first channels for the first fluid are used in evaporative heat exchangers two opposite circumferential areas of the plates arranged and possibly merge.
  • the first two connection areas are in the operating state arranged one above the other and are at least part of the main channels directly connected to each other. Because at least a main direction includes an angle to the vertical, which is less than 30 °, in particular less than 20 °, optionally essentially 0 °, or preferably Is 15 °, the first two connection areas are direct connected by main channels which are in one direction run that is inclined less than 30 ° to the vertical. This ensures a good rise of gas bubbles or at Condensation heat exchangers a good sink of condensed Liquid drops guaranteed.
  • the second Channels constructed similar to the first and include third and fourth main channels for the second fluid, which in the run essentially along a main direction.
  • the first and second and the third and fourth channels optionally in outer end areas, but preferably connected in all intersection areas.
  • the first and second and third and fourth main channels respectively on both sides of a first or second connection level as open half channels formed against the connecting plane.
  • the first and second are in the intersection areas or third and fourth main channels in the first or second connection level open to each other so that the first and second channels each as having the main channels sewer networks formed at the junctions in the intersection areas must be considered.
  • Plate stack with the described Sewer networks are mutually alternating subsequent first and second plates, being on one side of the first and second plates the fourth or second and on the other the first or third half-channels are formed. All channels one Plate run essentially parallel to each other.
  • the second two Connection areas for the second fluid carrying second channels as transverse to the plates preferably through these trending chambers are formed. These two chambers are mutually exclusive only through the second channels connected and completely separated from the first channels.
  • the second connection areas are transverse to the bisector spaced apart from each other in the two main directions, so they're not directly through individual Main channels are interconnected. The connection is thus only by at least two interconnected channel sections possible, with at least one channel section in the first and at least one in the second Main direction is aligned.
  • this is preferably made up of essentially identical plates or sheets constructed.
  • each plate are on both sides in a main direction Grooves arranged.
  • the plates as Sheets are formed, they can be provided on both sides Creasing by pressing or punching as beads are formed by a sheet metal side as Depressions and from the other sheet metal side as burr-shaped Protrusions appear.
  • To by connecting the plates are two completely separate duct systems to be able to train is along the entire circumference of the plate in a first, the plate on a first Edge bordering, level a first level contact surface intended.
  • the plate on the second Bordering the side two contact areas are provided, which are each arranged around a passage opening.
  • the Plates or sheets of the heat exchanger also close the same pages or levels. Corresponding Always alternately close contact areas and contact areas to each other and are ever closer to each other connected, especially welded or soldered together.
  • the substantially parallel beads or their Longitudinal axes close to a normal plane of the connecting line between the centers of the passage openings an angle that is smaller than 30 °, in particular smaller than 20 °, but is preferably essentially 15 °.
  • the beads start from the first level and have theirs on the back protruding ridges in the second Level.
  • the depressions between the ridge lines are preferred essentially the same shape as the beads, that means in cross section the parallel beads form one Wavy line, especially with half waves in the form of a Trapezes, the small side of which is rounded.
  • To the wettable Do not unnecessarily close the area on either side of the ridge lines reduce, preferably rounding the ridge line a small radius.
  • the built up from the plates or sheets described above Plate pack of the heat exchanger is with your two first or second connection areas to first or second connection cables can be connected. Training the Connection areas, the connecting cables and the Connections between these is the particular use customizable.
  • connections are preferred designed so that there is a clear separation for both fluids between inflow and outflow or that both through the fluid volume guided through the heat exchanger completely each have to flow a channel system. It can be useful be the two channel systems and their connection areas essentially the same, especially as for the second Described channels to train. If necessary, that is complete flow through a sewer network on a fluid limited and the other fluid forms a bath in which the plate pack with the closed channel system added is. But at least part of the bath fluid must for example as a convection flow Main channels in the plate pack flow around one enough to ensure great heat exchange.
  • the first two connection areas are not completely apart train separately. This can make it incomplete separate phase components in the heat exchanger each separate Main parts of the two phases are fed.
  • the plate pack is preferably partially in or arranged above a bath area for the first fluid.
  • the liquid level is in the working state chosen so that a large part of the plate pack or the first sewer network with the liquid phase of the first fluid is filled. This makes a big one Area of contact area between the two fluids Heating of the fluid to be evaporated used.
  • the plate pack essentially completely in the first liquid care must be taken to ensure that the Gas outlet is arranged so that no liquid can escape can, or that escaping liquid from a Separator can be returned to the bathroom.
  • the liquid escaping gas can pass through the first and / or second main channels rise into the gas area. Gas that when entering the bath by relaxing or in the bath arises spontaneously, can be from the side of the plate pack climb through the bath into the gas area.
  • a particularly compact and effective evaporator or evaporative heat exchanger includes a housing with a side attached refrigerant inlet for the liquid phase of the refrigerant and with one in the highest Housing area over a liquid separator arranged refrigerant outlet for the Gas phase of the refrigerant, as well as a plate pack inlet and outlet connections through the housing for a heat transfer fluid. Is in the operating state the plate pack to a large extent in the liquid Refrigerant phase. Connects to the refrigerant inlet in the housing a relaxation chamber from which the gas escaping during the expansion into the above the liquid ascend the gas area and to the refrigerant outlet can reach.
  • the liquid phase can get directly from the relaxation chamber, or via a level chamber in the bathroom area with the Plate pack where the liquid is essentially the first channels filled up to the liquid level.
  • the coolant fluid flows through the second channels and loses the heat necessary for the evaporation of the refrigerant.
  • the liquid level is chosen so that at least in the working state under the capacitor plate pack lies so that in the plate pack resulting liquid drops through first and / or drain the second main channels down and out of the plate pack can exit. The heat of condensation will through that through the second channels of the capacitor plate pack guided coolant added.
  • the relative vertical arrangement of the evaporator and condenser is selected so that the refrigerant level in the evaporator and in the capacitor in the operating state in a desired one Area is relative to the plate packs.
  • the capacitor plate pack should essentially lie above the corresponding mirror and the evaporator plate pack for the most part in the liquid phase of the refrigerant. Because of the essentially the same The chiller is built up by the evaporator and condenser easily dimensionable, buildable and adjustable.
  • Heat exchangers according to the invention are in any devices to carry out processes with a heat exchange step applicable. Because of the under a small Alignable to the vertical, essentially straight Main channels for a first fluid, can be in these channels both escaping gas and heated liquid one Bath in the sense of a guided convection flow, flow out upwards. The main channels for the first fluid also allow condensate drops to flow out well. By appropriate configurations of the connection areas it is possible to use the first and second channels of each Use accordingly with direct main channels between the connection areas or with connections via at least two differently oriented channel sections to make it usable.
  • Fig. 1 illustrates two adjoining plates a heat exchanger plate pack.
  • the plates are as circular disk-shaped sheets 1a and 1b with an annular, the outer edge of the contact surface forming the disc 2a, 2b, with two through passage openings 3a, 3b arranged contact areas 4a, 4b and with parallel, formed by beads 5a, 5b, arranged on both sides Main channels formed.
  • the beads 5a extend over the entire sheet metal area, which is not a contact area 2a and not designed as a contact area 4a is.
  • the beads 5a are shown in the illustration according to FIG. 1 of an upper plate la from a second level - the Drawing plane - in which the contact surface 2a lies, according to above before.
  • the beads 5b of a lower plate 1b are from down the same level before, so after the dense Connect the contact surface 2a of the upper plate la with the contact surface 2b of the lower plate 1b one of the Main channels formed second channel system that is only accessible through the passage openings 3a, 3b.
  • the axes are the Main channels of the upper and lower sheets 1a, 1b around a first angle of 30 ° to each other.
  • the against each other open main channels are in the connection areas 6, in which they face each other, with each other connected.
  • the contact areas 4a, 4b face away from one another, so that through the through openings 3a, 3b second fluid in the between the sheets 1a shown and 1b lying second channel system enter or from this can leak.
  • the formation of the sheets 1a, 1b and becomes the second channel system formed by the main channels further illustrated by the section shown in FIG. 2.
  • Fig. 2 shows a section (II-II, according to Fig. 1) through four sheets 1a, 1b, 1c, 1d.
  • the view shown in Fig. 1 is marked in Fig. 2 with B-B, this Level is referred to as the first level 7.
  • the one mentioned above second level is between the sheets 1a and 1b 8 and marked between the sheets 1c and 1d with 8 '.
  • the sheets 1a and 1b lie with their contact surfaces 2a and 2b in the second level 8.
  • the second one Level 8 outgoing beads 5a and 5b extend with their outer ridge lines 9a and 9b, like the contact areas 4a and 4b, up to the first levels 7 and 7 '.
  • the Sheet 1b and 1c together become the second channel system tightly closed. That through the passage openings extending second chambers 10 are with the between the two sheets 1a and 1b formed second channels 11 connected and form the second connection areas. Of the main channels of the second go to the connection areas 6 Channel system as half channels in both directions the beads away, what about the hatching is indicated.
  • the first channels 12 are between the two sheets 1b and 1c, with analogous to the second channels 11 on both sides of the first level 7 'half-channels in the directions the beads run.
  • the first connection areas are arranged between the contact surfaces 2b and 2c. In the Use the plate pack in a bath or as a condenser the division of the ring-shaped first results Connection areas in an inflow and an outflow area by the mode of operation, in particular by the liquid level of the bath or by the fact that Condensate drops only flow out through downward channels can. If necessary, the first connection areas but through tight connections between the Contact areas 2b and 2c delimited, or are analogous to the second chambers 10 are clearly defined first chambers.
  • the first channel system 12 is designed that direct channels between the lower and the upper Edge area of the plate pack, or the sheets 1 as the first and second main channels 13 and 14 along their entire length run along a first and a second main direction.
  • the fluid level 15 determines which Channels the liquid phase of the first fluid enters and thus also the connection area in which liquid flows.
  • the open ends of channels 13 and 14 flow into the connection area in which the gas produced emanates.
  • first and / or second channels are only slightly inclined towards the vertical and a direct one Connection between the inflow connection area or Channel area in which gas bubbles arise and the outflow connection area there is a hardly impeded flow 13a and 14a guaranteed by the first fluid.
  • Flow with the liquid phase in the intersection areas 6 two in the adjacent first and second Main channels guided partial flows with boundary layer contact across each other, what in both sub-currents leads to a slight turbulence excitation. This will a heated boundary layer adjacent to the channel walls dissolved and the heat transfer between the duct wall and the first fluid improved.
  • the two main directions are at an angle of less than 60 °, especially less than 40 °, preferably of essentially 30 ° to each other.
  • the main directions can be aligned so that at least one Main direction includes an angle to the vertical that is less than 30 °, in particular less than 20 °.
  • channels 14 are essentially as shown in FIG vertically aligned. If necessary, however 3 essentially by 15 ° inclined to the vertical.
  • the first and / or the second Main channels ensure in the chosen orientations a good rise of gas bubbles or in condensation heat exchangers a good sinking of condensed liquid drops.
  • the second channels have the same structure as the first and include third and fourth main channels 16, 17 for the second fluid, essentially along one each Main direction and at the ends through each other connected contact surfaces 2a, 2b are closed.
  • the third and fourth lie in the intersection areas 6 Main channels on both sides of the second connection levels 8, 8 ' open to each other.
  • the result is accordingly second channel system constructed in a network. Because the second Connection areas have 10 small dimensions and on one line perpendicular to the main directions are arranged, there are no main channels 16, 17 that the Connect the two connection areas 10 directly to one another.
  • the flow paths 18 extend over at least two, but preferably over at least three main channel sections 16, 17 and the crossing areas connecting them 6.
  • the second channel system is suitable for a fluid makes no phase transition, especially for a liquid.
  • the second fluid must therefore be between the second two Connection areas 10 a long way with strong Make changes of direction. It also gets together partial currents flowing past increase the turbulence, so that the partial flows are well homogenized and heat transfer is optimized. That through the third and fourth main channels 16, 17 formed channel network is independent on the orientation of the plate pack (Fig. 3 and 4 b) advantageous.
  • FIG. 5 and 6 show a particularly compact and effective Evaporator or evaporative heat exchanger, which is a housing 20 comprises with a refrigerant inlet opening attached to the side 21 for the liquid phase of the refrigerant and with one in the highest housing area above one Liquid separation device 22 arranged refrigerant outlet opening 23 for the gas phase of the refrigerant, as well as a plate pack 24 with led through the housing 20 Inlet and outlet connections 25 for a heat transfer fluid.
  • the plate pack is in the operating state 24 to a large extent in the liquid phase of the Refrigerant.
  • a relaxation chamber 26 Connects to the refrigerant inlet opening in the housing 20 21 a relaxation chamber 26 from which gas escaping during expansion via a partition 27 and under a deflecting element 28 through in the over the Liquid gas region 29 flow and from there via lateral guide elements 22a of the separating device 22 can reach the refrigerant outlet opening 23.
  • the liquid phase passes from the expansion chamber 26 if necessary, directly or via a level chamber 30, that between a housing wall 20a or the expansion chamber 26 and the partition 27 is formed in one Bath area 31 with the plate pack 24 where the liquid the first channels essentially up to a liquid level 32 replenishes.
  • a level chamber 30 that between a housing wall 20a or the expansion chamber 26 and the partition 27 is formed in one Bath area 31 with the plate pack 24 where the liquid the first channels essentially up to a liquid level 32 replenishes.
  • two fillers 39 are to be reduced on both sides the plate pack 24 between this and the inner wall of the housing 20 arranged.
  • In the deepest part of the housing remains a supply channel 40 through which the Liquid reach the first channels connected in parallel can.
  • the coolant fluid flows through the inlet and Outlet connections 25 and through the second channels of Plate pack 24 and thereby loses that for evaporation necessary heat of the refrigerant.
  • Fig. 7 shows a refrigerator or heat pump 33, with an evaporative heat exchanger 34 and a condensation heat exchanger 35, both of which are described above Include plate pack.
  • the gas from the evaporator 34 led to the capacitor 35 via a compressor 36.
  • the liquid phase of the refrigerant passes from the condenser 35 via a throttle valve 37 or an orifice in the evaporator 34.
  • the evaporator 34 comprises refrigerant connections 25 and the condenser 35 recoolant connections 38. It goes without saying that all known vaporizable Refrigerant and all appropriate refrigerants Recooling agents can be used.
  • the relative vertical arrangement of evaporator 34 and Condenser 35 is selected so that the refrigerant level in the evaporator and in the condenser 34a and 35a in the operating state in a desired area relative to the plate packs 24a and 24b.
  • the capacitor plate pack should 24b substantially above the corresponding one Mirrors 35a lie and the evaporator plate pack 24a is said to be largely in the liquid phase of the refrigerant lie. Due to the essentially identical structure of Evaporator 34 and condenser 35 becomes the refrigerator easily dimensionable, buildable and adjustable.

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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)
  • Compression-Type Refrigeration Machines With Reversible Cycles (AREA)

Claims (9)

  1. Échangeur de chaleur comprenant un paquet de plaques (24) se composant de premières et de deuxièmes plaques (1a, 1b, 1c, 1d) qui sont juxtaposées les unes contre les autres en alternance et entre lesquelles sont formés des premiers et deuxièmes canaux (11, 12) qui sont reliés par des premières et deuxièmes zones de raccordement à des premiers et deuxièmes orifices,de raccordement (21, 23, 25), les premiers orifices de raccordement (21, 23), zones de raccordement et canaux (12) étant totalement séparés des deuxièmes (25, 11), chacune des premières et deuxièmes plaques (1a, 1b, 1c, 1d) comportant des deux côtés de multiples canaux principaux (13,'17 ; 14, 16) qui sont sensiblement rectilignes et parallèles les uns aux autres dans chaque plaque (1a, 1b, 1c, 1d) et les premiers (12) ainsi que deuxièmes (11) canaux se composant d'une part de premiers et de deuxièmes canaux principaux (13, 14) et d'autre part de troisièmes et quatrièmes canaux principaux (16, 17) qui inscrivent un premier angle entre eux et qui sont réalisés de part et d'autre d'un premier (7, 7') ainsi que d'un deuxième (8, 8') plan de jonction sous forme de demi-canaux ouverts sur le plan de jonction, les quatrièmes (17) ainsi que deuxièmes (14) canaux principaux étant réalisés sur un côté d'une première (1b, 1d) ainsi que d'une deuxième (la, lc) plaque et les premiers (13) ainsi que les troisièmes (16) canaux principaux étant réalisés sur l'autre côté desdites plaques, caractérisé en ce que le premier angle est inférieur à 60°, le paquet de plaques (24) est logé dans une enveloppe (20) comportant des premiers orifices de raccordement (21, 23) et un deuxième angle compris entre la verticale et un axe orienté dans la direction des canaux principaux (13, 14, 16, 17) est inférieur à 30°.
  2. Échangeur de chaleur selon la revendication 1, caractérisé en ce que le premier angle est inférieur à 40° et il est de préférence sensiblement de 30°.
  3. Échangeur de chaleur selon la revendication 1 ou 2, caractérisé en ce que les premières et deuxièmes plaques (1b, 1d ; 1a, 1c) sont d'un même mode d'exécution, une surface plane de contact (2a, 2b ; 2c, 2d) étant prévue sur la totalité de la circonférence de chaque plaque (1a, 1b, 1c, 1d) dans un premier plan (7, 7') bordant chaque plaque (1a, 1b, 1c, 1d) sur un premier côté et deux zones de contact (4a, 4b, 4c, 4d), dont chacune entoure un orifice de passage étant prévues dans un deuxième plan (8, 8') bordant chaque plaque (1a, 1b, 1c, 1d) sur le deuxième côté, de sorte que la succession des plaques (1a, 1b, 1c, 1d) les unes contre les autres a pour conséquence qu'il y a toujours des surfaces de contact (2a, 2b ; 2c, 2d) et des zones de contact (4a, 4b, 4c, 4d) qui sont en appui les unes contre les autres en alternance sur les mêmes côtés et qui sont reliées de manière étanche les unes aux autres, en particulier qui sont soudées ou brasées les unes aux autres pour la séparation étanche des premiers et deuxièmes canaux (12, 11).
  4. Échangeur de chaleur selon la revendication 3, caractérisé en ce que les plaques sont des tôles (1a, 1b, 1c, 1d) dont les canaux principaux (13, 17 ; 14, 16) situés des deux côtés sont configurés en moulures (5a, 5b) qui donnent l'apparence de cavités sur un côté de la tôle et de protubérances en forme de crêtes sur l'autre côté de la tôle et en ce qu'au moins l'une des particularités suivantes est prévue :
    a) les moulures (5a ; 5b) de chaque tôle (1a, 1b, 1c, 1d) ou leurs axes longitudinaux, qui sont sensiblement parallèles, inscrivent avec un plan perpendiculaire à la ligne de jonction entre les centres des orifices de passage (3a, 3b, 3c, 3d) un angle qui est inférieur à 30°, en particulier inférieur à 20°, mais qui est de préférence sensiblement de 15° ;
    b) les moulures (5a, 5b) partent du premier plan (7, 7') et elles ont leurs lignes de crête saillantes sur le côté arrière qui sont dans le deuxième plan (8, 8') ; et
    c) les cavités situées entre les lignes de crête (9a, 9b) ont sensiblement la même forme que les moulures (5a, 5b).
  5. Échangeur de chaleur selon l'une des revendications 1-4, caractérisé en ce qu'un premier orifice de raccordement (23) est disposé dans une zone de l'enveloppe située en haut et en ce qu'au moins l'une des particularités suivantes est prévue,
    a) le deuxième angle inscrit entre la verticale et un axe situé le long des canaux principaux (13, 14, 16, 17) est inférieur à 20° et il est de préférence sensiblement de 0° ou de 15° ;
    b) les premières zones de raccordement se situent dans des zones partielles du volume interne de l'enveloppe qui sont dans le prolongement du paquet de plaques, de sorte que les premiers canaux (12) sont directement accessibles par le volume interne de l'enveloppe ; et
    c) les deuxièmes zones de raccordement sont configurées en chambres (10) qui passent dans le paquet de plaques (24) et qui sont reliées à des orifices de passage (25) que comporte l'enveloppe (20).
  6. Échangeur de chaleur selon la revendication 5, caractérisé en ce que le premier orifice de raccordement situé en haut (23) est configuré en orifice de sortie de gaz et un autre premier orifice de raccordement (21) est configuré en orifice d'entrée de liquide, au moins l'une des particularités suivantes étant prévue
    a) un séparateur de liquide (22) est associé à l'orifice de sortie de gaz (23) afin d'empêcher la sortie de gouttes de liquide ;
    b) une chambre de détente (26) destinée à la détente du liquide est raccordée à l'orifice d'entrée de liquide (21) de manière que du gaz émergeant puisse s'échapper vers le haut et vers l'orifice de sortie de gaz (23) ; et
    c) une chambre (30) dans laquelle s'établit un niveau est disposée entre la chambre de détente (26) et la zone de logement du paquet de plaques (24).
  7. Échangeur de chaleur selon la revendication 5, caractérisé en ce que le premier orifice de raccordement situé en haut est configuré en orifice d'entrée de gaz et un autre premier orifice de raccordement est configuré dans la zone la plus basse de l'enveloppe en orifice de sortie de liquide.
  8. Dispositif d'exécution d'un processus en circuit fermé, équipé d'un échangeur de chaleur selon la revendication 6 pouvant fonctionner en évaporateur (34), d'un échangeur de chaleur selon la revendication 7 pouvant fonctionner en condenseur (35), d'un compresseur (36) et d'une soupape d'étranglement (37) ou d'un diaphragme, un agent réfrigérant pouvant être évaporé dans les premiers canaux (12) de l'évaporateur par absorption de chaleur du fluide réfrigérant qui s'écoule dans les deuxièmes canaux (11) de l'évaporateur et pouvant être dirigé par le compresseur (36) dans le condenseur (35) pour s'écouler dans l'évaporateur (34) après être passé par la soupape d'étranglement (37) ou le diaphragme, à la suite de la condensation par abandon de chaleur à un agent de retour à l'état froid circulant dans les deuxièmes canaux du condenseur.
  9. Dispositif selon la revendication 8, caractérisé en ce que le dispositif est une machine frigorifique ou une pompe à chaleur.
EP97920477A 1996-05-24 1997-05-20 Echangeur de chaleur et appareil pour réaliser un cycle réversible Expired - Lifetime EP0901602B1 (fr)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
CH131496 1996-05-24
CH131496 1996-05-24
CH1314/96 1996-05-24
PCT/CH1997/000195 WO1997045689A1 (fr) 1996-05-24 1997-05-20 Echangeur de chaleur a plaques

Publications (2)

Publication Number Publication Date
EP0901602A1 EP0901602A1 (fr) 1999-03-17
EP0901602B1 true EP0901602B1 (fr) 2000-02-23

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EP97920477A Expired - Lifetime EP0901602B1 (fr) 1996-05-24 1997-05-20 Echangeur de chaleur et appareil pour réaliser un cycle réversible

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EP (1) EP0901602B1 (fr)
AT (1) ATE189924T1 (fr)
DE (1) DE59701152D1 (fr)
WO (1) WO1997045689A1 (fr)

Cited By (2)

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Publication number Priority date Publication date Assignee Title
DE102004022433B4 (de) * 2004-05-06 2007-01-04 Joachim Schult Profilierte Wärmeübertragungsplatte für einen geschweissten Wärmeüberträger
CN106885396A (zh) * 2015-12-15 2017-06-23 丹佛斯微通道换热器（嘉兴）有限公司 入口整流结构和板式换热器

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* Cited by examiner, † Cited by third party
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FI107353B (fi) * 1998-03-04 2001-07-13 Vahterus Oy Levylämmönvaihtimen levy sekä levylämmönvaihdin
FI114738B (fi) 2000-08-23 2004-12-15 Vahterus Oy Levyrakenteinen lämmönvaihdin
WO2002018861A1 (fr) 2000-08-28 2002-03-07 Mueller Regula Echangeur de chaleur
US7004237B2 (en) 2001-06-29 2006-02-28 Delaware Capital Formation, Inc. Shell and plate heat exchanger
FI113695B (fi) 2001-10-09 2004-05-31 Vahterus Oy Hitsattu levyrakenteinen lämmönvaihdin
FI118391B (fi) 2001-12-27 2007-10-31 Vahterus Oy Laite pyöreän levylämmönvaihtimen lämmönsiirron parantamiseksi
ATE350638T1 (de) * 2002-01-17 2007-01-15 York Refrigeration Aps Getauchter verdampfer mit integriertem wärmeaustauscher
FI20030527A0 (fi) 2003-04-08 2003-04-08 Vahterus Oy Levylämmönvaihdin ja virtauksen ohjainlevy
SE525354C2 (sv) 2003-06-18 2005-02-08 Alfa Laval Corp Ab Värmeväxlaranordning och plattpaket
FI20051056L (fi) * 2005-10-20 2007-04-21 Vahterus Oy Levylämmönsiirrin ja menetelmä painetta kestävän levylämmönsiirtimen rakentamiseksi
US20080282726A1 (en) * 2005-11-21 2008-11-20 Johnson Controls Denmark Aps Cooling System with Integrated Condenser and Expansion Valve
US7377308B2 (en) * 2006-05-09 2008-05-27 Modine Manufacturing Company Dual two pass stacked plate heat exchanger
US8453721B2 (en) 2007-01-31 2013-06-04 Tranter, Inc. Seals for a stacked-plate heat exchanger
FI20116050A0 (fi) * 2011-10-25 2011-10-25 Vahterus Oy Levylämmönsiirrin
DK2834578T3 (en) 2012-04-04 2016-05-17 Vahterus Oy An apparatus for atomizing a medium and separating drops as well as condensing the medium
DK2843324T3 (da) 2013-08-27 2021-03-08 Johnson Controls Denmark Aps Skal- og pladevarmeveksler og anvendelse af en skal- og pladevarmeveksler
JP5733866B1 (ja) * 2013-11-19 2015-06-10 株式会社前川製作所 冷媒熱交換器
ES2831757T3 (es) * 2017-03-10 2021-06-09 Alfa Laval Corp Ab Paquete de placas que usa una placa de intercambiador de calor con canal de drenaje integrado y un intercambiador de calor que incluye dicho paquete de placas

Family Cites Families (2)

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Publication number Priority date Publication date Assignee Title
US3537165A (en) * 1968-06-26 1970-11-03 Air Preheater Method of making a plate-type heat exchanger
FI94395B (fi) * 1993-12-20 1995-05-31 Mauri Eino Olavi Kontu Levylämmönsiirrin ja sen valmistusmenetelmä

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102004022433B4 (de) * 2004-05-06 2007-01-04 Joachim Schult Profilierte Wärmeübertragungsplatte für einen geschweissten Wärmeüberträger
CN106885396A (zh) * 2015-12-15 2017-06-23 丹佛斯微通道换热器（嘉兴）有限公司 入口整流结构和板式换热器
CN106885396B (zh) * 2015-12-15 2019-07-19 丹佛斯微通道换热器（嘉兴）有限公司 入口整流结构和板式换热器

Also Published As

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EP0901602A1 (fr) 1999-03-17
DE59701152D1 (de) 2000-03-30
WO1997045689A1 (fr) 1997-12-04
ATE189924T1 (de) 2000-03-15

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