WO2006073346A1 - Dispositif d'echange thermique - Google Patents

Dispositif d'echange thermique Download PDF

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Publication number
WO2006073346A1
WO2006073346A1 PCT/SE2005/001985 SE2005001985W WO2006073346A1 WO 2006073346 A1 WO2006073346 A1 WO 2006073346A1 SE 2005001985 W SE2005001985 W SE 2005001985W WO 2006073346 A1 WO2006073346 A1 WO 2006073346A1
Authority
WO
WIPO (PCT)
Prior art keywords
plate
heat exchanger
steam
final
plate heat
Prior art date
Application number
PCT/SE2005/001985
Other languages
English (en)
Inventor
Ralf Erik Blomgren
Original Assignee
Alfa Laval Corporate Ab
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 Alfa Laval Corporate Ab filed Critical Alfa Laval Corporate Ab
Priority to KR1020077015535A priority Critical patent/KR101170583B1/ko
Priority to EP20050819025 priority patent/EP1834152A4/fr
Priority to JP2007550324A priority patent/JP2008527297A/ja
Publication of WO2006073346A1 publication Critical patent/WO2006073346A1/fr

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D1/00—Evaporating
    • B01D1/22—Evaporating by bringing a thin layer of the liquid into contact with a heated surface
    • B01D1/221—Composite plate evaporators
    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D1/00—Evaporating
    • B01D1/22—Evaporating by bringing a thin layer of the liquid into contact with a heated surface
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D1/00—Evaporating
    • B01D1/28—Evaporating with vapour compression
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D5/00—Condensation of vapours; Recovering volatile solvents by condensation
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D5/00—Condensation of vapours; Recovering volatile solvents by condensation
    • B01D5/0003—Condensation of vapours; Recovering volatile solvents by condensation by using heat-exchange surfaces for indirect contact between gases or vapours and the cooling medium
    • B01D5/0015—Plates
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D5/00—Condensation of vapours; Recovering volatile solvents by condensation
    • B01D5/0057—Condensation of vapours; Recovering volatile solvents by condensation in combination with other processes
    • B01D5/006—Condensation of vapours; Recovering volatile solvents by condensation in combination with other processes with evaporation or distillation
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00—Treatment of water, waste water, or sewage
    • C02F1/02—Treatment of water, waste water, or sewage by heating
    • C02F1/04—Treatment of water, waste water, or sewage by heating by distillation or evaporation
    • 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
    • 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
    • F28D9/005—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 the plates having openings therein for both heat-exchange media
    • 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
    • F28F3/08—Elements constructed for building-up into stacks, e.g. capable of being taken apart for cleaning
    • F28F3/083—Elements constructed for building-up into stacks, e.g. capable of being taken apart for cleaning capable of being taken apart
    • 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
    • F28D2021/0061—Other heat exchangers for particular applications; Heat exchange systems not otherwise provided for for phase-change applications
    • F28D2021/0066—Other heat exchangers for particular applications; Heat exchange systems not otherwise provided for for phase-change applications with combined condensation and evaporation
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
    • Y02A20/00—Water conservation; Efficient water supply; Efficient water use
    • Y02A20/124—Water desalination

Definitions

  • the present invention refers to a heat exchanger device comprising a number of plate heat exchangers, which includes at least a first plate heat exchanger and which each comprises a frame plate, a pressure plate and a plurality of heat exchanger plates provided adjacent to each other to a plate package between the frame plate and the pressure plate in such a way that first plate interspaces for condensation of steam and second plate interspaces for evaporation of liquid are formed, wherein each plate heat exchanger comprises a steam inlet channel, which extends through the frame plate and substantially all heat exchanger plates and which communicates with the first plate interspaces, at least a condensate outlet channel, which extends through substantially all heat exchanger plates and communicates with the first plate interspaces, a liquid inlet channel, which extends through substantially all heat ex- changer plates and communicates with the second plate interspaces, and a steam outlet channel, which extends through the frame plate and substantially all heat exchanger plates and which communicates with the second plate interspaces.
  • the invention also refers to a heat exchange
  • Equipment for desalination of seawater is manufactured since sev- eral years, where packages with heat exchanger plates form the main components in the process.
  • the plates have no ports for steam, but instead the plate heat exchangers are positioned in containers, and the space outside the plates is used as one or more flow paths for the steam, depending on the type of process.
  • the container is frequently a cylindrical pressure vessel.
  • SE-B-464 938 discloses such a desalination plant having a plate package provided in a cylindrical container. In a large plant including several plate packages, these may be positioned in the longitudinal direction of the cylinder. To a certain extent, the container is limiting for how large a plant can be made if not several containers should be permitted to be included in the plant.
  • US-A-4, 511 ,436 discloses another large desalination plant having a process line with several successive heat exchanger stages, which each comprises a plate package of heat exchanger plates that are welded to each other in pairs and provided in a such a way in the plate package that first plate interspaces for condensation and second plate interspaces for evaporation are formed.
  • the process line is provided in a closed pressure container shown schematically, see also US-A-4, 514, 260.
  • the costs for the container are a large part of the total costs for the plant.
  • the manufacturing and the mounting of the container are both complex and time- consuming.
  • maintenance of the plant is difficult, for instance since individual plate packages and heat exchanger plates are difficult to reach in the container.
  • the object of the invention is to provide a heat exchanger device which has a simple construction and which permits maintenance and cleaning in an easy manner. Further object of the invention is to provide such a heat exchanger device which has a construction permitting that the device can be made large and include a large number of heat exchanger stages.
  • the heat exchanger device initially defined, which is characterized in that the device comprises a hous- ing, which adjoins the frame plate and forms a first outlet chamber which is arranged to receive the formed steam from the steam outlet channel, and a first liquid separator, which is provided in the housing and adapted to catch liquid from the steam flowing through the first outlet chamber.
  • the heat exchanger device may be designed without any container enclosing the plate heat exchanger or the plate heat exchangers. Suitable conditions for the manufac- turing and the mounting of the heat exchanger device to low costs are thus created.
  • the proposed design also permits an easy manufacturing of the heat exchanger device in various sizes, i.e. with a substantially arbitrarily number of plate heat exchangers. Each plate heat exchanger and the individual heat exchanger plates are thus easily accessible for inspection, maintenance and cleaning.
  • the heat exchanger device is designed for evaporation and condensation, respectively, of two media and is thus suitable for desalination of seawater or for other evaporating or distilling applications.
  • the device comprises a first inlet chamber which is arranged to convey steam into the steam inlet channel.
  • the first inlet chamber may be housed in a separate casing which is separated from the housing and which adjoins the frame plate.
  • the first inlet chamber may be housed in the housing. The first inlet chamber and the first outlet chamber are then separated by means of an inner wall in the housing.
  • said number of plate heat exchangers is at least one.
  • the heat exchanger device according to the invention may thus advantageously be realised by a plate heat exchanger and a housing that is connected to and adjoins the frame plate of the plate heat exchanger. In such a way, a simple and compact device is achieved.
  • the device may comprise a compressor, which is arranged to feed the formed steam from the first outlet chamber to the first inlet chamber and the steam inlet channel.
  • said number of plate heat exchangers is at least two, comprising two such first plate heat exchangers, which are parallel to each other in such a way that the first outlet chamber adjoins the frame plate of both the first plate heat exchangers and is connected to the steam outlet channel of both the first plate heat exchangers, wherein the first Nq- uid separator will catch liquid from the steam that comes from both the first plate heat exchangers.
  • This embodiment operates in principal as the previously defined embodiment, but with the difference that the steam at the same time is conveyed into two plate heat exchangers and that the steam generated in the plate heat exchang- ers is discharged to a common outlet chamber for further use in a subsequent stage or as inlet steam to the two parallel plate heat exchangers.
  • the first inlet chamber is con- nected to the steam inlet channel of both the first plate heat exchangers. Consequently, also the inlet chamber may be common for the two plate heat exchangers.
  • the housing may have two opposite substantially parallel side walls, wherein the plate heat exchangers extend outwardly from a respective one of said side walls in substantially opposite directions. In such a way, an advantageous layout permitting easy mounting and good accessibility is achieved.
  • said number of plate heat exchangers is at least two, wherein the device comprises a first a stage with at least said first plate heat exchanger and a final stage with at least one final such plate heat exchanger.
  • this device comprising a common housing and several plate heat exchangers, may be manufactured in an easy manner and offers a good accessibility for maintenance and cleaning.
  • the housing adjoins the frame plate of the final plate heat exchanger and forms a final outlet chamber, which is arranged to receive the formed steam from the steam outlet channel of the final plate heat ex- changer.
  • the device may comprise a final inlet chamber, which is arranged to convey steam into the steam inlet channel of the final plate heat exchanger.
  • the final inlet chamber is housed in the housing.
  • the first outlet chamber is connected to the final inlet chamber for permitting transport of the steam formed in the first plate heat exchanger to the steam inlet channel of the final plate heat exchanger. Consequently, a heat exchanger device having several stages or effects is achieved in an easy manner.
  • the device may comprise a, preferably mechanical, compressor which is arranged to feed the formed steam from the final outlet chamber to the first inlet chamber.
  • the device may comprise a final liquid separator, which is provided in the final outlet chamber and adapted to catch liquid from the steam flowing through the final outlet chamber.
  • the housing has at least one side wall, wherein the first plate heat ex- changer and the second plate heat exchanger extend outwardly from the side wall in substantially the same direction.
  • the housing has two opposite, substantially parallel side walls, wherein the first plate heat exchanger and the second plate heat exchanger extend outwardly from a respective one of said side walls in substantially opposite directions.
  • the device comprises at least one intermediate stage with at least one intermediate plate heat exchanger, wherein an intermediate inlet chamber is arranged to convey steam into the steam inlet channel of the intermediate plate heat exchanger, an intermediate outlet chamber is arranged to receive steam from the steam outlet channel of the intermediate plate heat exchanger, and the intermediate outlet chamber communicates with the final inlet chamber via an interme- diate liquid separator.
  • the device may advantageously comprise one, two, three, four, five, six or more successive intermediate stages, which each comprises at least one intermediate such plate heat exchanger.
  • the device comprises a condenser, which is arranged downstream the final outlet chamber for condensation of the steam that is fed to the final outlet chamber.
  • the device may comprise a thermo compressor, which is adapted to be operated through the supply of external steam at high pressure and which is adapted to receive at least a part of the steam that is fed to the final or one of the final outlet chambers for mixing of this part and the external steam, wherein the mixture forms the steam that is supplied to the first inlet chamber.
  • each stage comprises at least two such plate heat exchangers.
  • the housing may have two opposite substantially parallel side walls, wherein the plate heat exchangers in each stage extend outwardly from a respective one of said side walls in substantially opposite directions.
  • the housing may then have an elongated shape permitting that the plate heat exchangers extend substantially perpendicularly outwardly from the two longitudinal substantially parallel side walls of the centrally positioned housing.
  • substantially each heat exchanger plate comprises a first porthole for forming the first steam inlet channel, at least a second porthole for forming the condensate outlet channel, a third porthole for forming the liquid inlet channel and at least a fourth porthole for forming the steam outlet channel.
  • substantially each heat exchanger plate may comprise a central heat transfer area, wherein the first porthole is located above the central heat transfer area and the second porthole is located below the central heat transfer area.
  • the third porthole may be located in the proximity of an upper end of the central heat transfer area, wherein the heat ex- changer plates are designed in such a way that a distribution space is formed in each of the second plate interspaces, which extends transversely to the heat exchanger plates along the upper end of the central heat transfer area and is adapted to distribute the liquid over the whole central heat transfer area.
  • each of the plate heat exchangers comprises at least one elongated support member which extends substantially perpendicularly from the frame plate, wherein the heat exchanger plates and the pressure plate are mounted in the support member.
  • each of the plate heat exchangers may comprise a number of tie bolts which extend between the frame plate and the pressure plate and which are arranged to permit compressing of the heat exchanger plates.
  • the initially defined heat exchanger device which is characterized in that it comprises a housing, which adjoins the frame plate of each of the plate heat exchangers, wherein the housing forms a first outlet chamber, which is arranged to receive the formed steam from the steam outlet channel of the first plate heat exchanger, and a final outlet chamber, which is arranged to receive the formed steam from the steam outlet channel of the final plate heat exchanger.
  • the object is achieved by the heat exchanger device initially defined, which is characterized in that it comprises a housing, which adjoins the frame plate of each of the plate heat exchangers and form a first inlet chamber, which is arranged to con- vey steam into the steam inlet channel of the plate heat exchanger in the first stage, a first outlet chamber, which is arranged to receive steam from the steam outlet channel of the plate heat exchangers in the first stage, a final inlet chamber, which is arranged to convey steam into the steam inlet channel of the plate heat exchangers in the second stage, and a final outlet chamber, which is arranged to receive steam from the steam outlet channel of the plate heat exchangers in the second stage.
  • Fig. 1 discloses schematically a view from above of a heat exchanger device according to a first embodiment of the invention.
  • Fig. 2 discloses schematically a partly sectional side view of the heat exchanger device along the line H-Il in Fig. 1.
  • Fig. 3 discloses a sectional view along the line Ill-Ill in Fig. 2.
  • Fig. 4 discloses a sectional view along the line IV-IV in Fig. 2.
  • Fig. 5 discloses a plan view of a first heat exchanger plate of the heat exchanger device in Fig. 1.
  • Fig. 6 discloses a plan view of a second heat exchanger plate of the heat exchanger device in Fig. 1.
  • Fig. 7 discloses schematically a view from above of a heat exchanger device according to a second embodiment of the invention.
  • Fig. 8 discloses schematically a partly sectional side view of the heat exchanger device along the line VIII-VIII in Fig. 7.
  • Fig. 9 discloses a sectional view along the line IX-IX in Fig. 8
  • Fig. 10 discloses a plan view of a first heat exchanger plate of the heat exchanger device in Fig. 7.
  • Fig. 11 discloses a plan view of a second heat exchanger plate of the heat exchanger device in Fig. 7.
  • Fig. 12 discloses schematically a view from above of a heat exchanger device according to a third embodiment of the invention.
  • Fig. 13 discloses schematically a partly sectional side view of the heat exchanger device in Fig. 12.
  • Fig. 14 discloses schematically a view from above of a heat exchanger device according to a fourth embodiment of the invention.
  • Fig. 15 discloses a sectional view along the line XV-XV in Fig. 14.
  • Fig. 16 discloses a sectional view along the line XVI-XVI in Fig. 14.
  • Fig. 17 discloses schematically a sectional view similar to the one in Fig. 16 of a heat exchanger device according to a fifth embodiment of the invention.
  • Figs. 1 - 6 disclose a heat exchanger device according to a first embodiment.
  • the disclosed embodiments are in the first place intended for desalination of a salt-containing liquid, so called brine, but they are not limited to this application but can be used for distillation or evaporation in other applications.
  • the heat exchanger device comprises a plate heat exchanger 1 , which comprises a frame plate 2, a pressure plate 3 and a plurality of heat exchanger plates 4, 5 arranged beside each other to a plate package, see Figs. 5, 6.
  • the heat exchanger plates 4 and 5 are arranged adjacent to each other in an alternating order in the plate heat ex- changer 1 between the frame plate 2 and the pressure plate 3 in such a way that first plate interspaces 6 for condensation of steam and second plate interspaces 7 for evaporation of liquid are formed, see also Fig. 8 where a small number of the total number of heat exchanger plates 4, 5 and plate interspaces 6, 7 are schematically indicated.
  • Each heat exchanger plate 4, 5 and the frame plate 2 comprise two first portholes 11 for forming a steam inlet channel 21 , a second porthole 12 for forming a condensate outlet channel 22, a third porthole 13 for forming a liquid inlet channel 23 and two fourth port- holes 14 for forming a steam outlet channel 24.
  • Each heat exchanger plate 4, 5 also comprises a central heat transfer area 15.
  • the first portholes 11 are located above the central heat transfer area 15 when the heat exchanger plates 4, 5 are located in a normal position of use in the plate heat exchanger 1.
  • the second port- hole 12 is then located below the central heat transfer area 15.
  • the third porthole 13 is located in the proximity of an upper edge of the central heat transfer area 15 whereas the fourth portholes 14 are located below the central heat transfer area 15 in the normal position of use.
  • the pressure plate 3 is in the disclosed embodiments continuous, i.e. the pressure plate 3 lacks portholes.
  • the steam inlet channel 21 which extends through the frame plate 2 and substantially all heat exchanger plates 4, 5, communicates with the first plate interspaces 6.
  • the heat exchanger plates 4, 5 are designed in such a way that a distribution space 16 is formed in each of the second plate interspaces 7.
  • the distribution space 16 extends transversely to the heat exchanger plates 4, 5 along the upper end of the central heat transfer area 15 and is adapted to distribute the liquid from the liquid inlet channel 23 over the whole central heat transfer area 15.
  • the plate heat exchanger 1 comprises three elongated support members 17, 18 in which the heat exchanger plates 4, 5 and the pressure plate 3 are mounted.
  • the support members 17, 18 are designed as beams extending substantially horizontally from the frame plate 2 in the normal position of use.
  • the plate heat exchanger 1 comprises a number of tie bolts 19, see Fig. 7, which extend between the frame plate 2 and the pressure plate 3 and which are arranged to permit compression of the heat exchanger plates 4, 5.
  • gaskets 21 are provided between the heat exchanger plates 4, 5 for sealing the first plate interspaces 6 relatively the surroundings, the liquid inlet channel 23 and the steam outlet channel 24 and for sealing of the second plate interspaces 7 relatively the surroundings, the steam inlet channel 21 and the condensate outlet channel 22. It is also possible to utilize a permanent connection of adjacent heat exchanger plates 4, 5, for instance by welding in pairs, gluing in pairs, completely welded plate packages or completely glued plate packages.
  • the heat exchanger device also comprises a housing 30, which is located beside the heat exchanger plates 4, 5 and which more specifically adjoins the frame plate 2.
  • the housing 30 forms a first outlet chamber 31 which is arranged to receive the formed steam from the steam outlet channel 24.
  • the heat exchanger device also comprises a first liquid separator 32, which is provided in the first outlet channel 31 in the housing 30 and which is adapted to catch liquid from the steam flowing through the first outlet chamber 31.
  • the heat exchanger device comprises a first inlet chamber 33 which is arranged to convey steam into the steam inlet channel 21.
  • the first inlet chamber 33 is housed in a separate casing 34 which also adjoins the frame plate 2 but is separated from the housing 30.
  • the heat exchanger device also comprises a mechanical compressor 40, in form of a pump or fan member.
  • the compressor 40 is provided between the first liquid separator 32 and the first inlet chamber 33.
  • the compressor 40 is thus arranged to feed the formed steam from the first outlet chamber 31 through the first liquid separator 32 to the first inlet chamber 33 and the steam inlet channel 21 via a connection channel 39.
  • a salt-containing liquid, so called brine is supplied to the liquid inlet channel 23 via a liquid conduit 41.
  • the formed condensate is discharged from the condensate outlet channel 22 via a condensate conduit 42.
  • the salt- containing liquid which is separated by means of the first liquid separator 32 is collected in a bottom space 43 and discharged by means of a conduit 44.
  • Figs. 7 - 11 disclose a heat exchanger device according to a sec- ond embodiment. It is to be noted that for elements and components having a corresponding function the same reference signs have been used in all embodiments.
  • the second embodiment differs from the first one in that the first inlet chamber 33 is housed in the housing 30, i.e. in the same housing 30 as the first outlet cham- ber 31.
  • the first inlet chamber 33 and the first outlet chamber 33 are separated from each other by means of an inner wall 46 in the housing 30.
  • the heat exchanger plates 4, 5 are somewhat differ- ently designed in the second embodiment.
  • the heat exchanger plates 4, 5 comprise a first porthole 11 for forming the steam inlet channel 21 and a fourth porthole 14 for forming the steam outlet channel 24.
  • each heat exchanger plate 4, 5 comprises two second portholes 12 for forming the condensate outlet channel 22.
  • the second embodiment may include a mechanical compressor of the type disclosed in Figs. 1 , 2 and 4.
  • Figs. 12 and 13 disclose schematically a heat exchanger device according to a third embodiment.
  • This heat exchanger device comprises two plate heat exchangers 1 , wherein each plate heat exchanger 1 has substantially the same construction as the plate heat exchanger 1 in the second embodiment.
  • the two plate heat exchangers 1 are provided in series with each other in such a way that they form a first stage with at least a first plate heat exchanger 1 and a final stage with at least a final plate heat exchanger 1.
  • the third embodiment comprises a common housing 30 for both the plate heat exchangers 1 or the stages.
  • the housing 30 adjoins the frame plate 2 of both the plate heat exchangers 1 and forms a first outlet chamber 31 and a final outlet chamber 31 , which are arranged to receive the formed steam from the steam outlet channel 24 of the respective plate heat exchanger 1.
  • a liquid separator 32 is provided in each of the outlet chambers 31 for catching liquid from the steam flowing through the respective outlet chamber 31.
  • the housing 30 also forms a first inlet chamber 33 and a final inlet chamber 33, which are arranged to convey steam into the steam inlet channel 21 of the respective plate heat exchanger 1.
  • the first outlet chamber 31 is connected to the final inlet chamber 33 via a connection channel 39 for permitting transport of the steam formed in the first plate heat exchanger 1 to the steam inlet channel 21 of the final plate heat exchanger 1 by means of a compressor 40 which is arranged to feed the formed steam from the final outlet chamber 31 to the first inlet chamber 33.
  • the housing 30 has two opposite, substantially parallel side walls 50 which according to an alternative may be formed by the frame plate 2 of the respective plate heat exchanger 1. As appears from Figs. 12 and 13, the first plate heat exchanger 1 and the second plate heat exchanger 1 extend outwardly from a respective one of these side walls 50 in substantially opposite directions. Inner walls 46 are provided in the housing 30 for separating the different chambers 31 , 33 from each other.
  • Figs. 14 - 16 disclose schematically a heat exchanger device according to a fourth embodiment.
  • This heat exchanger device comprises ten plate heat exchangers 1 , wherein each plate heat exchanger 1 has substantially the same construction as the plate heat exchanger 1 in the second and third embodiments. For the sake of simplicity, certain details, which are disclosed in Figs. 7 - 11 , have been dispensed with also in Figs. 14 - 16.
  • the heat exchanger device according to the fourth embodiment also comprises a common housing 30 for all plate heat exchangers 1.
  • the housing 30 has two opposite substantially parallel longitudinal side walls 50, wherein the plate heat exchangers 1 extend out- wardly from these side walls 50 in substantially opposite directions.
  • the plate heat exchangers 1 are arranged in pairs, wherein each pair of plate heat exchangers 1 forms a stage in the process, or a so called effect.
  • the plate heat exchangers 1 in each stage are arranged opposite to each other on opposite sides of the centrally lo- cated, elongated housing 30 in such a way that they extend outwardly from a respective one of the longitudinal side walls 50 in substantially opposite directions.
  • the plate heat exchangers 1 in each stage are thus parallel to each other and have a common outlet chamber 31 and a common inlet chamber 33, i.e. the first outlet chamber 31 adjoins the frame plate 2 of both the plate heat exchangers 1 in the first stage and is connected to the steam outlet channel 24 of the both plate heat exchangers 1 in the first stage.
  • the first inlet chamber 32 adjoins the frame plate 2 of both the plate heat exchangers 1 in the first stage and are con- nected to the steam inlet channel 21 of the both plate heat exchangers 1 in the first stage.
  • a liquid separator 32 which thus functions as a border between the outlet chamber 31 of one stage and the inlet chamber 33 of the subsequent stage, see Fig. 16.
  • the inlet chamber 33 in one stage is separated from the outlet chamber 31 in the same stage by means of a sloping inner wall 46.
  • the heat exchanger device comprises a condenser 55, which is provided downstream the final outlet chamber 31 for condensation of the steam fed to the final outlet chamber 31.
  • the condenser 55 comprises in the embodiment disclosed two parallel plate heat exchangers which extend outwardly from the housing 30 in opposite directions in a corresponding manner as the plate heat exchangers 1.
  • the condenser 55 is adapted to provide a final condensation of the steam fed to the final outlet chamber 31.
  • the condenser 55 is supplied with an external cooling medium. It is to be noted that the condenser 55 may be de- signed in another way than as disclosed in Fig. 14.
  • the heat exchanger device also comprises a thermo compressor 60, which is adapted to be operated through the supply of external steam at a high pressure in a manner known per se.
  • the external steam is supplied to the thermo compressor 60 via a supply conduit 61.
  • the thermo compressor 60 supplies steam at a pressure and a temperature to the first inlet chamber 33 via a feed conduit 62.
  • This pressure and this temperature corresponds to the pressure and the temperature in the first inlet chamber and in the first plate interspaces 6 in the plate heat exchanger 1 in the first stage, but is lower than the surrounding atmospheric pressure and the surrounding temperature, respectively.
  • the pressure and the temperature then sink successively in the subsequent stages.
  • a part of the steam fed from one or several of the final stages is re- turned to the thermo compressor 60 via a conduit 63.
  • the thermo compressor 60 comprises a nozzle for recirculation of the returned steam to the feed conduit 62 by means of the external steam.
  • Fig. 17 illustrates a fifth embodiment which differs from the fourth embodiment in that each stage comprises four plate heat exchangers 1 , two on each side of the housing 30.
  • each stage may comprise a plate heat exchanger 1 , wherein all plate heat exchangers 1 extends outwardly from one and the same side wall 50 of the elongated housing 30 in substantially the same direction.
  • the fifth embodiment may be constructed in the same way as the fourth embodiment.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Engineering & Computer Science (AREA)
  • Thermal Sciences (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Hydrology & Water Resources (AREA)
  • Environmental & Geological Engineering (AREA)
  • Water Supply & Treatment (AREA)
  • Organic Chemistry (AREA)
  • Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
  • Details Of Heat-Exchange And Heat-Transfer (AREA)

Abstract

La présente invention a trait à un dispositif d'échange thermique comportant une pluralité d'échangeurs à plaques (1), comprenant au moins une premier échangeur à plaques. Chaque échangeur à plaques comporte une plaque d'encadrement (2), une plaque de pression (3) et une pluralité d'échangeurs à plaques qui sont disposés de telle sorte que les premières distances des plaques (6) pour la condensation de la vapeur et des deuxièmes distances des plaques pour l'évaporation de liquide sont formées. Chaque échangeur à plaques comporte un canal d'admission de vapeur (21), qui communique avec les premières distances des plaques, un canal de sortie de condensat, qui communique avec les premières distances des plaques, un canal d'admission de liquide (23), qui communique avec les deuxièmes distances des plaques, et un canal de sortie de vapeur (24) qui communique avec les deuxièmes distances de plaques. Un boîtier (30) est adjacent à la plaque d'encadrement et forme une première enceinte de sortie (31) qui est agencée pour la réception de la vapeur formée en provenance du canal de sortie de vapeur. Un premier séparateur de liquide (32) est prévu dans le boîtier et adapté à capturer le liquide en provenance de la vapeur circulant à travers la première enceinte de sortie.
PCT/SE2005/001985 2005-01-07 2005-12-20 Dispositif d'echange thermique WO2006073346A1 (fr)

Priority Applications (3)

Application Number Priority Date Filing Date Title
KR1020077015535A KR101170583B1 (ko) 2005-01-07 2005-12-20 열 교환기 장치
EP20050819025 EP1834152A4 (fr) 2005-01-07 2005-12-20 Dispositif d'echange thermique
JP2007550324A JP2008527297A (ja) 2005-01-07 2005-12-20 熱交換器装置

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
SE0500034-4 2005-01-07
SE0500034A SE528143C2 (sv) 2005-01-07 2005-01-07 Värmeväxlaranordning

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WO2006073346A1 true WO2006073346A1 (fr) 2006-07-13

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JP (2) JP2008527297A (fr)
KR (1) KR101170583B1 (fr)
CN (1) CN100575852C (fr)
SE (1) SE528143C2 (fr)
WO (1) WO2006073346A1 (fr)

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US8226800B2 (en) 2008-12-15 2012-07-24 Water Desalination International, Inc. Water desalination system
EP2886992A1 (fr) * 2013-12-20 2015-06-24 Viessmann Werke GmbH & Co. Kg Échangeur de chaleur à plaques

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CN102430257B (zh) * 2011-09-16 2013-07-10 无锡市迪昌制冷设备有限公司 一种水蒸汽冷凝器
CN110494712B (zh) * 2016-12-22 2021-02-26 艾威普科公司 微型管的空气冷却式工业蒸汽冷凝装置
CN108379997B (zh) * 2018-04-13 2023-04-18 郑州轻工业学院 小型多通道蒸汽冷凝集液器
EP4155648A1 (fr) * 2019-09-13 2023-03-29 Alfa Laval Corporate AB Echangeur de chaleur à plaques pour le traitement d'une charge liquide
DE102021214492A1 (de) * 2021-12-16 2023-06-22 Robert Bosch Gesellschaft mit beschränkter Haftung Wärmeübertragerplatte, Plattenwärmeübertrager und Wasseraufbereitungsanlage

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US8226800B2 (en) 2008-12-15 2012-07-24 Water Desalination International, Inc. Water desalination system
US8696872B2 (en) 2008-12-15 2014-04-15 Water Desalination International, Inc. Water desalination system
US9056261B2 (en) 2008-12-15 2015-06-16 Water Desalination International, Inc. Water desalination system
EP2886992A1 (fr) * 2013-12-20 2015-06-24 Viessmann Werke GmbH & Co. Kg Échangeur de chaleur à plaques

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Publication number Publication date
EP1834152A4 (fr) 2012-06-20
SE0500034L (sv) 2006-07-08
CN100575852C (zh) 2009-12-30
JP2012093085A (ja) 2012-05-17
KR101170583B1 (ko) 2012-08-01
KR20070094764A (ko) 2007-09-21
JP2008527297A (ja) 2008-07-24
SE528143C2 (sv) 2006-09-12
EP1834152A1 (fr) 2007-09-19
CN101099072A (zh) 2008-01-02
JP5832922B2 (ja) 2015-12-16
SE0500034D0 (sv) 2005-01-07

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