EP1936311B1 - Échangeur de chaleur compact à plaques - Google Patents

Échangeur de chaleur compact à plaques Download PDF

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Publication number
EP1936311B1
EP1936311B1 EP06026846.3A EP06026846A EP1936311B1 EP 1936311 B1 EP1936311 B1 EP 1936311B1 EP 06026846 A EP06026846 A EP 06026846A EP 1936311 B1 EP1936311 B1 EP 1936311B1
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EP
European Patent Office
Prior art keywords
plate
housing
tight
stack
gas
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Not-in-force
Application number
EP06026846.3A
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German (de)
English (en)
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EP1936311A1 (fr
Inventor
Joachim Schult
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Schult Joachim
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Schult Joachim
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Publication date
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Priority to EP06026846.3A priority Critical patent/EP1936311B1/fr
Publication of EP1936311A1 publication Critical patent/EP1936311A1/fr
Application granted granted Critical
Publication of EP1936311B1 publication Critical patent/EP1936311B1/fr
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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
    • 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
    • F28D9/0093—Multi-circuit heat-exchangers, e.g. integrating different heat exchange sections in the same unit or heat-exchangers for more than two fluids
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F3/00—Plate-like or laminated elements; Assemblies of plate-like or laminated elements
    • F28F3/02—Elements or assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with recesses, with corrugations
    • F28F3/04—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
    • F28F3/042—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 in the form of local deformations of the element
    • F28F3/046—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 in the form of local deformations of the element the deformations being linear, e.g. corrugations
    • 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
    • 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
    • F28F9/005—Other auxiliary members within casings, e.g. internal filling means or sealing means
    • 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
    • F28F9/26—Arrangements for connecting different sections of heat-exchange elements, e.g. of radiators
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F2225/00—Reinforcing means
    • F28F2225/02—Reinforcing means for casings
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F2250/00—Arrangements for modifying the flow of the heat exchange media, e.g. flow guiding means; Particular flow patterns
    • F28F2250/10—Particular pattern of flow of the heat exchange media
    • F28F2250/102—Particular pattern of flow of the heat exchange media with change of flow direction

Definitions

  • the invention relates to a compact plate heat exchanger with a plate pack of profiled heat transfer plates, which have a rectangular shape and are bounded on both sides by an arcuately shaped head with a centrally located in the head passage opening, each two heat transfer plates joined together, the plate gap for the flow of a first medium form over the passage openings, are gas-tight welded to each other at the periphery to a pair of plates and wherein at least two assembled plate pairs are gas-tight welded respectively to the circumference of the two openings to a plate package, which form a plate space for the flow of a second medium on the front side of the plate package, said the plate pack in a gas-tight and pressure-stable housing with a shell-side inlet and outlet ports for the first medium to flow through the Plattenzwisc henraums one or more pairs of plates and provided with frontal inlet and outlet nozzle for the second medium for flowing through the plate interspaces between two or more plate pairs on the front side of the plate pair.
  • a generic plate heat exchanger is out EP 697 09 719 T2 known.
  • This plate heat exchanger consists of a plate pack formed of a plurality of circumferentially welded plate pairs, which are formed of elongated heat transfer plates with a continuous herringbone pattern that extends into the head portions which arcuately define the heat transfer plate and formed with a central flow opening are, in each case the mutually joined plate pairs are welded to the periphery of the adjacent passage openings to form a compact plate package.
  • the heat transfer surface is formed with additional Presserhebisme which are slightly higher than the ribs and extending from the apex of a rib, thereby bridging the wave trough between the two ribs.
  • the heat transfer plate is bounded by a peripheral edge region, which is in a plane with the apex of the ribs, wherein the press elevations extend from this plane.
  • the joined heat transfer plates are brazed by the addition of brazing solder at the points of contact.
  • Such a trained plate package affected as a result of Presserhebungen the flow behavior of the media involved in the plate interspaces and has only low support points, which inevitably lead to reduce the pressure stability of the plate package.
  • the heat transfer plates do not have a uniform circumferential edge region, which considerably complicates a quality-compatible welding of two heat transfer plates to form a pair of plates.
  • Such a trained plate package is after the EP 697 09 719 T2 in a housing with a shell-side inlet and outlet to the plate spaces of the plate pairs and with a frontal inlet and outlet for a second medium to the spaces between the plate pairs used.
  • a connecting piece is arranged with an opening between the uppermost plate pair and an upper wall of the housing, which extends coaxially with the shell-side inlet and outlet of the housing and the passage openings of the plate pair.
  • These connectors are each brazed to the adjacent passage openings of the uppermost plate pair and sealed against the inner surface of the upper wall of the housing with seals and each have two threaded bolts, which are carried sealed by holes in the upper wall of the housing. With these threaded bolts, the plate pack is then pulled on the inner surface of the housing. With the attachment of the plate pack against the inner surface of the upper wall of the housing, the inner surface of the lower wall of the housing remains meaningless as an abutment for the plate pack.
  • the thermal loss can be kept low on the housing and sufficient pressure stability and internal stability of the housing is achieved, the housing walls are interpreted with relatively thick wall thickness, which affect the cost-benefit ratio of the plate heat exchanger. But also the throughput of such a trained plate heat exchanger is limited and can not be variably varied with minimal space requirements.
  • a heat transfer plate for a welded plate heat exchanger of the generic type which has a rectangular shape, which is bounded at the two end faces with arcuate head parts, in each of which a centrally located flow opening is provided and, as in Fig.1 - 2 shown in the head portions and the rectangular portion of the heat transfer surface has a straight and transverse at an angle to the longitudinal axis of the heat transfer plate extending wave structure in the edge region of the heat transfer surface and the Headboards forms a circumferential profile-free welding edge of the same width at the periphery.
  • Such a formed wave structure has when joining two heat transfer plates over the entire length of the gap formed on a high number of punctiform support points, which largely preclude occurrence of preferential flows in the space due to the punctiform support.
  • EP 0 285 504 A1 describes a heat exchanger for heat exchange between a first fluid stream and a second fluid stream comprising a bundle of parallel tubes oriented in a first direction and wherein the first fluid circulates, at least one of the ends of the tubes communicating with the interior of a fluid chamber the second fluid stream flows outside the tubes in a second direction transverse to the first direction along heat exchanger elements that are in thermal contact with the tubes.
  • the tubes are fixed in a housing between the two housing parts in the first direction, wherein the housing has an inlet and an outlet for the second fluid flow, defines a passage for the second fluid and is filled with heat exchanger elements over the entire cross section.
  • Out GB 2 130 354 A is a disk oil cooler with at least one provided with an inlet and a drain for the oil to be cooled disc package known, which is arranged in a provided with a water inlet and a water outlet housing, wherein between the parallel to the water flow direction extending sides of the disk package and the housing walls opposite thereto each arranged a sealing strip is.
  • US 2303247 B describes a shell-and-tube heat exchanger in which pillows made of fibrous material, such as metal wool or glass wool, are inserted between tubes and housing walls.
  • the object of the invention is therefore to improve the plate heat exchanger mentioned above in that using a from the DE 10 2004 022 433 A1 known heat transfer plate, a shell-side bypass can be limited to a minimum, the thermal efficiency is increased by an improved flow characteristics and a plate heat exchanger without seal as a compact plate heat exchanger with a variable interpretable throughput in the smallest space requirement to the high pressure range and also for a temperature range of -200 ° C to +1200 ° C with an improved cost-benefit ratio can be used and can be operated more economically and service-free operation.
  • a compact plate heat exchanger according to claim 1 or claim 2, wherein between the two inner sides of the parallel side parts of the housing and the longitudinal sides of the strained plate package, a filling material is inserted, one or more plate packs formed from welded plate pairs are clamped in a metal-sealed manner between the upper and lower housing plates of the housing and the parallel side parts and with the inserted filling material, the upper and lower housing plate are welded to the parallel side parts of the housing to a housing shell, which is closed on both sides by a front part with or without connecting piece to a pressure-resistant and gas-tight housing (1) and a housing which is stiffened with at least two staggered and circumferential to the housing shell ribs.
  • the compact plate heat exchanger of claim 1 at least two plate packs are arranged in a housing, which are each separated by a partition connected to the end portions of the housing, wherein the Platten mergeraume the adjacent plate packs are alternately flowed through by each of the two media in countercurrent, in the mutually the
  • the upper and / or lower housing plate permeates gas-tight and each partition is alternately fixed to the front part and extends at least over the length of the plate packs to be separated and the front side between two adjacent plate packs and the opposite end part forms an overflow area.
  • the compact plate heat exchanger can be designed to be very pressure stable with a size of heat transfer plates, which can be designed very pressure stable, for very high throughput in the high pressure range and also for large pressure differences between the media flowing through. Due to the changing flow direction of the media in the individual plate packs and the possibility that the two flowing media can be performed both in DC and in countercurrent, the condition is given that the thermal process in the compact plate heat exchanger to different applications for the thermal treatment two or more media can be better adapted.
  • each stack of parcels consists of uniformly offset in the horizontal plane plate packs, which are separated by separating plates, wherein the plate interstices of the staggered plate packs Packet stack separated and the plate spaces of the staggered plate packs of a stack of plates together from the first medium in the same flow direction directly from a gas-tight welded to the housing manifold and collector and associated spigot, each gas-tight welded at the periphery of the passage opening of the heat transfer plate of the adjacent plate pack shell side are flowed through and that the second medium in a flow direction the plate interstices of all in the housing clamped plate packs st flows through on both sides.
  • the compact plate heat exchanger can be designed with a very high throughput, which requires a relatively small footprint. Due to the large number of plate packs, which also consist of heat transfer plates of a size that is very stable in pressure, this embodiment of the compact plate heat exchanger can also be used up to the highest pressure ranges for thermal treatment of the media.
  • An advantage of this embodiment is also when the plate interstices of each uniformly staggered plate packs of a plate stack are flowed through separately associated inlet and outlet ports, which are gas-tight welded at the periphery of the passage opening of the heat transfer plate of the offset adjacent plate pack and in the penetration region of the housing.
  • the shell-side flowed through plate interstices of the plate packs of the plate stack, which are offset in a common horizontal plane, are simultaneously flowed through by different media
  • the front-side flowed through plate interstices of Kompakt Schemeübertrages are only flowed through by a medium. Consequently, this extends the field of application of the compact plate heat exchanger and such a compact plate heat exchanger can be operated with a significantly improved cost-benefit ratio.
  • plate heat exchanger is a sealless and only metallic sealed pressure-stable and welded compact plate heat exchanger, which is suitable without further additional clamping means into the high pressure range and in a temperature range from -200 ° C to 1200 ° C.
  • the wave crests intersect when joining two mutually rotated by 180 ° heat transfer plates to the circumferential profile-free welding edge regularly and thus form over the entire width and length of the plate interspace regularly repeating support points.
  • the punctiform supports of a plate gap occupy in addition only a very small part of the flow area. Consequently, the thermal effective flow area of each plate gap is minimally affected by the support points.
  • a shell-side bypass is limited to a minimum, wherein the filler material simultaneously has a thermal insulating effect against the side parts of the housing.
  • the efficiency and performance-reducing factors of the bypass but also the thermal radiation through the housing are significantly limited.
  • the housing With the stiffening of the housing via circumferential ribs, the housing itself has a very high pressure stability, so that the compact plate heat exchanger can be applied in conjunction with the pressure-stable plate package also with a media pressure, which is in the absolute highest pressure range in the heat transfer of two media. Rather, by the stiffening of the housing with circumferential ribs, the material thickness of the upper and lower housing plate and the two parallel side parts of the housing depending on the number of circumferential ribs even when using the compact plate heat exchanger with very high media pressure compared to the known plate heat exchangers of this type can be reduced ,
  • a designed according to the inventive teaching compact plate heat exchanger is, as usual with bolted plate heat exchangers, in the modular system but also suitable for the production of automated manufacturing equipment and thus very economical to produce.
  • the ribs are rib portions which are integral with the upper and lower housing plates and the side parts, wherein the respective adjacent ends of the individual rib portions after the clamping of the plate pack with the upper and lower housing plate and as the two parallel side parts are welded together.
  • the ribs can also be circumferential rib sections welded onto the housing jacket, wherein the ends of the adjacent ribs are welded.
  • the ribs can also be in the form of the housing shell prefabricated closed ribs, which are shrunk on the housing shell.
  • the end faces of the housing are gas-tight welded to the housing jacket.
  • the filling material used is a Metal mesh or a wire mesh or a glass graphite knit.
  • These fillers are very flexible and heat resistant as well as resistant to aggressive media. Due to the high flexibility of these fillers also a disability-free deformability is given when clamping the plate pack with the housing parts. In addition, these fillers ensure a stable position of the plate package even after bracing and even in the tensioned state still have a sufficient insulating air cushion.
  • the filling material is covered at least in the front-lying inlet and outlet region of the housing with a Ableitblech opposite the front-lying inlet and outlet region of the housing and metallically sealed. In this way, a bypass between the longitudinal sides of the plate pack and the side parts of the housing, which affects the performance and efficiency of Kompaktplattenkorübertragers be excluded.
  • a filling material is inserted between each partition wall and the longitudinal sides of the respective package stack and the filling material is sealed by means of a Ableitblechs.
  • the housing 1 consists of a separately manufactured upper housing plate 21 and lower housing plate 22 and side parts 23, 23 a, which are clamped together with the plate package 2, the filling material 29, 29 a and the Ableitblechen 30 - 30x to a housing shell and gas-tight welded to the the end parts 24; 24a, with frontal inlet and outlet pipe 15; 16 are provided, is closed to a pressure-stable housing 1 and ribs 16-16x, spaced from each other, the housing shell of the housing 1 rotate in a closed form.
  • a filling material 29, 29 a inserted, which extends over the length and width of the inner surface of the side parts 23, 23 a.
  • a metal mesh or wire mesh or a Glasgraphitstrick is on both sides opposite the front-side inlet and outlet region of the housing 1 with Ableitblechen 30 - 30x covered with one end against the inner surfaces of the end portions 24, 24 a metallically sealed and with the other end against the adjacent end faces 12, 12a of the plate pack 2 are metallically sealed, as in FIG Fig. 1A seen.
  • the clamped in the housing 1 with the filling material 29, 29a and the Ableitblechen plate package 2 is tool-free clamped metallically sealed over the axially extending inner surfaces of the housing 1 and is the shell side with inlet nozzle 13 (14) and outlet nozzle 14 (13) connected to the housing plate 21st and / or 22 coaxially penetrate and on the circumference 27; 28 of the passage openings 8, 9 of the adjacent heat transfer plate 3, 4 of the plate pack 2 and in the penetration region 25; 25a of the housing 1 are welded.
  • the housing parts 21, 22 and side parts 23, 23a forming the housing 1 are designed in a dimension in which an inserted plate package 2 is clamped metallically sealed in the housing 1 in the horizontal and in the vertical plane and between the two end faces 12; 12a of the plate pack 2 and the end parts 24; 24a of the housing 1, a free inlet or outlet area remains, both, as already mentioned, by Ableitbleche 30 - 30x opposite the filling material 29; 29x are metallically sealed.
  • the dimension of the free inlet and outlet region is preferably designed in a size, so that the end face 12 (12 a) of the plate pack 2 is always uniformly charged with the medium, which via the inlet nozzle 15 (16) in the compact plate heat exchanger flows in or outlet side uniformly on the end face 12a (12) from the plate pack 2 and the outlet nozzle 16 (15) flows out of the compact plate heat exchanger.
  • a compact plate heat exchanger according to the invention is shown, in which, according to the basic system of the housing after Fig. 1 and 2 formed housing 1 two with the long sides juxtaposed plate packs 2, 2x the same dimension are clamped.
  • the two plate packs 2, 2x are separated by a partition wall 38, which is fixed metallically sealed on the inside of the end portion 24a, which is provided with the inlet nozzle 15 and the outlet nozzle 16 and extends over the length of the two plate packs 2, 2x and relative to the inside of the end portion 24a an overflow region 33 between the plate packs 2, 2x forms for the medium that flows through the plate interstices 10 of the plate packs 2, 2x frontally.
  • the plate packs 2, 2 are flown through by each medium in the opposite direction of flow, wherein the media involved can flow through both in cocurrent and in countercurrent through the compact plate heat exchanger.
  • Fig. 5-7 show a further possible embodiment of the compact plate according to the invention Fig. 2 to 4 with three juxtaposed plate packs 2, 2a, 2x, which in turn in a housing 1 according to the basic system of Fig. 1 . 2 are tense.
  • the partition walls 38, 38x for separating the plate packs 2, 2a, 2x mutually set sealed to the inner surfaces of the end portions 23, 23a and thus form the mutual overflow region 33; 33x for the medium, the front side, the interstices 10 of the plate packs 2, 2a, 2x flows through.
  • the jacket side are flowed through, alternately shorted at the output of the plate package 2 and at the entrance of the plate package 2a and at the output of the plate package 2a and the input of the plate package 2x by elbows 31, 31x gas-tight, the lower housing plate 22 and the upper housing plate 21 penetrate and respectively at the periphery 27 and 28 of the passage opening 9 and 8 of the adjacent heat transfer plate 3; 4 of the plate packs 2 and 2x gas-tight welded.
  • the insert of the filling material 29, 29a with the Ableitblechen takes place analogous to the embodiment according to Fig. 3 or 4 and is only extended to the middle plate package 2a.
  • the plate packs are flowed through by each medium sequentially and mutually in the opposite direction of flow, in which case the involved media can flow through the compact plate heat exchanger both in DC and in countercurrent.
  • Fig. 8 - 11 show another possible embodiment of the compact plate heat exchanger after Fig. 2 to 4 with for example three juxtaposed plate stacks 40- 40 x, which are formed from separate plate packets 2, 2a - 2x and which in turn together with the filling material 29, 29a and the Ableitblechen 30 - 30x in a housing 1 according to the basic system of Fig. 1 . 2 are tense.
  • the plate packs 2, 2a, 2x of each plate stack 40-40x are uniformly offset horizontally and in this case by separating plates 39; 39a separated.
  • the plate interspaces 11 of the plate packs 2, 2a are connected on the inlet side via separately guided connecting pieces 35, 35a to a distributor 34 arranged on the casing side 21 on the casing side, which is in direct communication with the plate interspace 11 of the plate package 2x.
  • the plate interspace 11 of the plate package is connected on the outlet side 2 times and the plate interspaces 11 of the plate packages 2, 2a on the outlet side via separately guided connection piece 35b, 35x with a shell side to the arranged on the housing plate 22 collector 36.
  • the outlet nozzle 14 is fixed in a gas-tight manner, via which a medium supplied on the shell side together to the compact plate heat exchanger and is discharged.
  • the plate interspaces 10 of the plate packs 2, 2 a, 2 x of each plate stack 40 - 40x are on the frontally arranged inlet and outlet nozzle together from the second medium front side depending on the connection of the compact plate heat exchanger in countercurrent or DC flows through.
  • the juxtaposed plate stacks 40 - 40x are separated by partitions 38, 38x having a length approximately equal to the length of an offset plate packet 2, 2a, 2x.
  • the upper and lower housing plates 21, 22 and the two parallel side parts 23, 23a also have a dimension at which the plate stacks 40-40x and the and the plate packs 2, 2a, 2x of the plate stacks 40-40x with the filling material 29, 29a are metallically sealed in and with the strained housing 1 and in the housing 1 on both sides a free space is ensured, that on the one hand during flow of the end face 12 of the plate packs 2, 2a, 2x the plate stack 40 - 40x a preferred flow to the gap 10 is excluded and On the other hand, an obstruction-free outflow from the plate interspaces 10 of the plate packs 2, 2a, 2x of the plate stacks 40 - 40 is ensured.
  • the plate interstices 11 of the plate packs 2, 2a, 2x of a plate stack 40-40x can be subjected to different media.
  • the separately guided inlet-side connecting pieces 35, 35a and the outlet-side connecting pieces 35b, 35x are not connected to the distributor 24 or to the collector 36, but the connecting pieces 35, 35a are directly connected to a separate inlet piece 13 or connecting piece 35b, 35x connected, which are connected to a separate outlet nozzle 14.
  • a plate pack 2 - 2x for such a trained compact plate heat exchanger consists, as in Fig. 13 shown, from a plate package 2, which is formed from plate pairs 5 - 5x, the circumference 27; 28 of the passage openings 8; 9 gas-tight welded and a plate gap 10 for the flow of a Form medium over the end face 12, 12 a of the plate package 2, wherein each pair of plates 5; 5x from two in Fig. 4 shown identical heat transfer plates 3, 4, which are rotated in its own plane by 180 ° relative to the other and gas-tight welded along its peripheral edge region to a pair of plates 5 and thus form a plate gap 11 for the flow of a second medium through the passage openings 8, 9 ,
  • the heat transfer plates 3 used for this purpose; 4 exist, as in Fig. 12 shown, of a rectangular heat transfer surface 17, which is bounded on both sides by arcuate head portions 6, 7, wherein the arc radius is preferably half the width of the heat transfer plate 3; 4 is.
  • the rectangular heat transfer surface 17 and the head portions 6, 7 are provided with a corrugated profile 18 having a uniform wave structure which is straight at an equal angle to the longitudinal axis and into the edge region 19 of the heat transfer plate 3; 4 runs and in the edge region 19 of the heat transfer plates forms a circumferential profile-free welding edge 20 of equal width.

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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)

Claims (10)

  1. Echangeur de chaleur compact à plaques présentant :
    un ensemble (2) constitué de plaques profilées (3; 4) de transfert de chaleur dont la forme est rectangulaire et qui sont délimitées des deux côtés par une partie de tête (6; 7) configurée en arc de cercle et présentant une ouverture de passage (8; 9) située au milieu de la partie de tête (6; 7),
    deux plaques (3, 4) de transfert de chaleur mutuellement jointives, qui forment entre les plaques un espace intermédiaire (11) permettant le passage d'un premier fluide par les ouvertures de passage (8, 9) étant soudées l'une à l'autre à leur périphérie de manière étanche aux gaz pour former une paire (5) de plaques,
    au moins deux paires (5, 5x) de plaques jointives étant soudées à la périphérie (27; 28) des deux ouvertures de passage (8; 9) de manière étanche aux gaz pour former un ensemble (2) de plaques qui forme entre les plaques un espace intermédiaire (10) permettant le passage d'un deuxième fluide par les côtés frontaux (12, 12a) de l'ensemble (2) de plaques et
    un boîtier (1) étanche aux gaz et résistant à la pression, présentant du côté de l'enveloppe une tubulure d'entrée et une tubulure de sortie (13; 14) pour le premier fluide qui traverse l'espace intermédiaire (11) entre plaques d'une ou plusieurs paires (5-5x) de plaques et du côté frontal une tubulure d'entrée et une tubulure de sortie (15; 16) pour le deuxième fluide qui traverse les espaces intermédiaires (10) entre deux ou plusieurs paires (5-5x) de plaques par l'intermédiaire des côtés frontaux (12, 12a) de l'ensemble (2) de plaques,
    la plaque (3; 4) de transfert de chaleur présentant dans sa surface (17) rectangulaire de transfert de chaleur et dans les parties de tête (6, 7) un profil ondulé (18) qui présente une structure ondulée uniforme et continue qui forme dans la bordure (19) de la surface rectangulaire (17) de transfert de chaleur et des parties de tête (6; 7) un bord soudé (20) de largeur constante, non profilé et entourant la périphérie de la plaque (3; 4) de transfert de chaleur,
    la tubulure d'entrée et la tubulure de sortie (13; 14) conduisant vers les espaces intermédiaires (11) entre plaques des paires (5-5x) de plaques étant soudées de manière étanche à la périphérie (27; 28) de l'ouverture de passage (8; 9) de la plaque (3; 4) de transfert de chaleur de la paire (5; 5x) adjacente de plaques ainsi que dans la zone de traversée (25; 25a) des plaques (21; 22) du boîtier (1),
    caractérisé en ce que
    un matériau de charge (29; 29a) est inséré entre les deux côtés intérieurs des parties latérales (23, 23a) s'étendant en parallèle du boîtier (1) et les côtés longitudinaux d'un paquet (2; 2x) de plaques,
    en ce qu'un ou plusieurs paquets (2-2x) de plaques formés de paires (5-5x) de plaques soudées sont serrés métalliquement de manière étanche entre la plaque supérieure, la plaque inférieure (21, 22) du boîtier (1) et les parties latérales (23, 23a) s'étendant en parallèle ainsi qu'avec le matériau de charge (29, 29a) qui a été inséré,
    en ce que la plaque supérieure et la plaque inférieure (21, 22) du boîtier sont soudées aux parties latérales (23, 23a) s'étendant longitudinalement du boîtier (1) pour former une enveloppe de boîtier fermée des deux côtés par une partie frontale (24, 24a) avec ou sans tubulure de raccordement (15; 16), pour former un boîtier (1) étanche aux gaz et résistant à la pression,
    en ce que l'enveloppe du boîtier est rigidifiée par au moins deux nervures (16-16x) disposées en décalage et entourant l'enveloppe du boîtier,
    en ce qu'au moins deux paquets (2-2x) de plaques séparés chacun par une paroi de séparation (38; 38a-38x) reliée aux parties frontales (24 ou 24a) du boîtier (1) sont disposées dans le boîtier (1),
    en ce que les espaces intermédiaires (10; 11) entre les paquets (2-2x) de plaques adjacents sont traversés en alternance et à contre-courant par chacun des deux fluides par le fait que les ouvertures de passage (9) et l'ouverture de passage (8) des plaques (3; 4) de transfert de chaleur de deux paquets (2, 2a-2x) de plaques voisins sont alternativement mis en court-circuit par une courbe tubulaire (31; 31x), qui traverse de manière étanche au gaz la plaque (21; 22) du boîtier,
    en ce que chaque paroi de séparation (38; 38a-38x) est fixée en alternance sur la partie frontale (24 ou 24a), s'étend au moins sur la longueur des paquets (2, 2a-2x) de plaques à séparer et forme du côté frontal une zone de débordement (33; 33x) entre deux paquets (2, 2a-2x) de plaques voisins et la partie frontale (24a ou 24).
  2. Echangeur de chaleur compact à plaques présentant :
    un ensemble (2) constitué de plaques profilées (3; 4) de transfert de chaleur dont la forme est rectangulaire et qui sont délimitées des deux côtés par une partie de tête (6; 7) configurée en arc de cercle et présentant une ouverture de passage (8; 9) située au milieu de la partie de tête (6; 7),
    deux plaques (3, 4) de transfert de chaleur mutuellement jointives, qui forment entre les plaques un espace intermédiaire (11) permettant le passage d'un premier fluide par les ouvertures de passage (8, 9) étant soudées l'une à l'autre à leur périphérie de manière étanche aux gaz pour former une paire (5) de plaques,
    au moins deux paires (5, 5x) de plaques jointives étant soudées à la périphérie (27; 28) des deux ouvertures de passage (8; 9) de manière étanche aux gaz pour former un ensemble (2) de plaques qui forme entre les plaques un espace intermédiaire (10) permettant le passage d'un deuxième fluide par les côtés frontaux (12, 12a) de l'ensemble (2) de plaques et
    un boîtier (1) étanche aux gaz et résistant à la pression, présentant du côté de l'enveloppe une tubulure d'entrée et une tubulure de sortie (13; 14) pour le premier fluide qui traverse l'espace intermédiaire (11) entre plaques d'une ou plusieurs paires (5-5x) de plaques et du côté frontal une tubulure d'entrée et une tubulure de sortie (15; 16) pour le deuxième fluide qui traverse les espaces intermédiaires (10) entre deux ou plusieurs paires (5-5x) de plaques par l'intermédiaire des côtés frontaux (12, 12a) de l'ensemble (2) de plaques,
    la plaque (3; 4) de transfert de chaleur présentant dans sa surface (17) rectangulaire de transfert de chaleur et dans les parties de tête (6, 7) un profil ondulé (18) qui présente une structure ondulée uniforme et continue qui forme dans la bordure (19) de la surface rectangulaire (17) de transfert de chaleur et des parties de tête (6; 7) un bord soudé (20) de largeur constante, non profilé et entourant la périphérie de la plaque (3; 4) de transfert de chaleur,
    la tubulure d'entrée et la tubulure de sortie (13; 14) conduisant vers les espaces intermédiaires (11) entre plaques des paires (5-5x) de plaques étant soudées de manière étanche à la périphérie (27; 28) de l'ouverture de passage (8; 9) de la plaque (3; 4) de transfert de chaleur de la paire (5; 5x) adjacente de plaques ainsi que dans la zone de traversée (25; 25a) des plaques (21; 22) du boîtier (1),
    caractérisé en ce que
    un matériau de charge (29; 29a) est inséré entre les deux côtés intérieurs des parties latérales (23, 23a) s'étendant en parallèle du boîtier (1) et les côtés longitudinaux d'un paquet (2; 2x) de plaques,
    en ce qu'un ou plusieurs paquets (2-2x) de plaques formés de paires (5-5x) de plaques soudées sont serrés métalliquement de manière étanche entre la plaque supérieure, la plaque inférieure (21, 22) du boîtier (1) et les parties latérales (23, 23a) s'étendant en parallèle ainsi qu'avec le matériau de charge (29, 29a) qui a été inséré,
    en ce que la plaque supérieure et la plaque inférieure (21, 22) du boîtier sont soudées aux parties latérales (23, 23a) s'étendant longitudinalement du boîtier (1) pour former une enveloppe de boîtier fermée des deux côtés par une partie frontale (24, 24a) avec ou sans tubulure de raccordement (15; 16), pour former un boîtier (1) étanche aux gaz et résistant à la pression,
    en ce que l'enveloppe du boîtier est rigidifiée par au moins deux nervures (16-16x) disposées en décalage et entourant l'enveloppe du boîtier,
    en ce qu'une ou plusieurs piles de paquets (40, 40a-40x) disposées les unes à côté des autres et séparées par une paroi de séparation (38; 38a-38x) sont insérées dans le boîtier (1),
    en ce que chaque pile (40, 40a; 40x) de paquets est constituée de paquets (2, 2a-2x) de plaques décalés régulièrement les uns par rapport aux autres dans le plan horizontal et séparés les uns des autres par des tôles de séparation (39; 39a-39x),
    en ce que les espaces intermédiaires (11) entre plaques des paquets (2-2x) de plaques décalés d'une pile (40-40x) de paquets sont séparés et les espaces intermédiaires (11) entre les plaques des paquets (2-2x) de plaques décalés d'une pile (40-40x) de plaques étant traversés du côté de l'enveloppe et conjointement par le premier fluide dans la même direction d'écoulement, directement depuis un répartiteur (34) et un collecteur (36) soudés de manière étanche aux gaz sur le boîtier (1) et par des tubulures de raccordement (35; 35a; 35b; 35x) associées qui sont toutes soudées de manière étanche aux gaz à la périphérie de l'ouverture de passage (8, 9) de la plaque (3, 4) de transfert de chaleur du paquet (2; 2x) de plaques adjacent et
    en ce que le deuxième fluide traverse frontalement dans une direction d'écoulement les espaces intermédiaires (10) entre plaques de tous les paquets (2-2x) de plaques serrés conjointement dans le boîtier (1).
  3. Echangeur de chaleur compact à plaques selon les revendications 1 ou 2, caractérisé en ce que les nervures (16-16x) sont constituées de segments de nervure formés dans la plaque intérieure et la plaque supérieure de recouvrement (21, 22) ainsi que dans les parties latérales (23, 23a) et dont les extrémités adjacentes sont soudées, ou de segments de nervures soudés périphériquement autour de l'enveloppe du boîtier et dont les extrémités adjacentes sont soudées, ou en ce que les nervures (16-16x) sont des nervures (16-16x) fermées, préfabriquées dans la forme de l'enveloppe du boîtier et serties sur l'enveloppe du boîtier.
  4. Echangeur de chaleur compact à plaques selon l'une des revendications 1 à 3, caractérisé en ce que les côtés frontaux (23, 23a) du boîtier (1) sont soudés de manière étanche aux gaz sur l'enveloppe du boîtier.
  5. Echangeur de chaleur compact à plaques selon l'une des revendications 1 à 3, caractérisé en ce que les côtés frontaux (23, 23a) du boîtier (1) sont fixés sur l'enveloppe du boîtier de manière libérable, étanche aux gaz et résistant à la pression.
  6. Echangeur de chaleur compact à plaques selon la revendication 5, caractérisé en ce que la liaison libérable entre l'enveloppe du boîtier et les côtés frontaux (23, 23a) est une liaison filetée faisant intervenir des goujons fixes.
  7. Echangeur de chaleur compact à plaques selon l'une des revendications 1 à 6, caractérisé en ce que le matériau de charge est un treillis métallique, un tricot de fils ou un tricot de verre et de graphite.
  8. Echangeur de chaleur compact à plaques selon l'une des revendications 1 à 7, caractérisé en ce que le matériau de charge est recouvert et rendu étanche métalliquement au moins dans une zone d'entrée et de sortie du boîtier (1) situé du côté frontal à une tôle d'évacuation (30-30x) par rapport à la zone d'entrée et de sortie du boîtier (1) située du côté frontal.
  9. Echangeur de chaleur compact à plaques selon l'une des revendications 2 à 8, caractérisé en ce que les espaces intermédiaires (11) entre les plaques des paquets (2-2x) de plaques décalés uniformément d'une pile (40-40x) de plaques sont traversés par l'intermédiaire de tubulures d'entrée et de sortie (12, 14) associées séparément, soudées de manière étanche aux gaz à la périphérie (27; 28) de l'ouverture de passage (8: 9) de la plaque (3, 4) de transfert de chaleur du paquet (2, 2x) de plaques adjacent et décalé et dans la zone de traversée (25; 25a) du boîtier (1).
  10. Echangeur de chaleur compact à plaques selon l'une des revendications 1 à 9, caractérisé en ce qu'un matériau de charge (29; 29a) est inséré entre chaque paroi de séparation (38-38x) et les côtés longitudinaux de chaque paquet (2-2x) de plaques adjacent ou de chaque pile (40-40x) de paquets, et en ce que le matériau de charge (29; 29a) est rendu étanche au moyen d'une tôle de déviation (30; 30x).
EP06026846.3A 2006-12-23 2006-12-23 Échangeur de chaleur compact à plaques Not-in-force EP1936311B1 (fr)

Priority Applications (1)

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Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2136175B1 (fr) * 2008-06-21 2016-06-22 Joachim Schult Plaque d'échange de chaleur, paire de plaques, pile de plaques, échangeur de chaleur à plaques compactes et son procédé de fabriquation
IT1398347B1 (it) * 2010-02-23 2013-02-22 Mta Spa Unita' per il trattamento termico di un fluido.
DE202010014128U1 (de) * 2010-10-12 2011-02-24 Tranter Pressko Gmbh Baueinheit aus Wärmetauscher und Flüssigkeitsabscheider
EP2541181B1 (fr) 2011-06-30 2014-07-09 Alfa Laval Corporate AB Module de plaques de transfert thermique et échangeur thermique à plaques comprenant ledit module
FR2995672B1 (fr) * 2012-09-19 2014-10-03 Air Liquide Echangeur de chaleur et procede d'installation d'une unite de separation de gaz comprenant de tels echangeurs de chaleur
JP7046767B2 (ja) * 2018-09-11 2022-04-04 株式会社神戸製鋼所 熱交換器
WO2022026172A1 (fr) * 2020-07-27 2022-02-03 Repligen Corporation Dispositif, système et procédé de traitement à haute température de courte durée
FR3122728B1 (fr) * 2021-05-06 2023-06-02 Commissariat A L’Energie Atomique Et Aux Energies Alternatives Module d’échangeur de chaleur à plaques à canaux intégrant au moins une zone d’alimentation et de distribution de fluide formée par des plots.

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US6016865A (en) * 1996-04-16 2000-01-25 Alfa Laval Ab Plate heat exchanger
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FR2613058B1 (fr) 1987-03-25 1990-06-08 Valeo Echangeur de chaleur, notamment pour le refroidissement de l'air de suralimentation du moteur d'un vehicule automobile
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GB2426322A (en) * 2005-07-22 2006-11-22 Michael Tate Exhaust Gas Heat Exchanger

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