EP1936311B1 - Compact plate heat exchanger - Google Patents

Compact plate heat exchanger 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
Authority
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)
French (fr)
Other versions
EP1936311A1 (en
Inventor
Joachim Schult
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Schult Joachim
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Schult Joachim
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Publication date
Application filed by Schult Joachim filed Critical Schult Joachim
Priority to EP06026846.3A priority Critical patent/EP1936311B1/en
Publication of EP1936311A1 publication Critical patent/EP1936311A1/en
Application granted granted Critical
Publication of EP1936311B1 publication Critical patent/EP1936311B1/en
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

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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)

Description

Die Erfindung betrifft einen Kompaktplattenwärmeübertrager mit einem Plattenpaket aus profilierten Wärmeübertragungsplatten, die eine rechteckige Form aufweisen und beiderseits durch ein bogenförmig ausgebildetes Kopfteil mit einer mittig im Kopfteil liegenden Durchtrittsöffnung begrenzt sind, wobei jeweils zwei aneinander gefügte Wärmeübertragungsplatten, die einen Plattenzwischenraum für den Durchfluss eines ersten Mediums über die Durchtrittsöffnungen bilden, miteinander am Umfang gasdicht zu einem Plattenpaar verschweißt sind und wobei mindestens zwei zusammengefügte Plattenpaare jeweils am Umfang der beiden Durchtrittsöffnungen gasdicht zu einem Plattenpaket verschweißt sind, die einen Plattenzwischenraum für den Durchfluss eines zweiten Mediums über die Stirnseite des Plattenpakets bilden, wobei das Plattenpaket in einem gasdicht und druckstabilen Gehäuse mit einem mantelseitigen Ein- und Austrittsstutzen für das erste Medium zum Durchströmen des Plattenzwischenraums eines oder mehrerer Plattenpaare und mit stirnseitigen Ein- und Austrittsstutzen für das zweite Medium zum Durchströmen der Plattenzwischenräume zwischen zwei oder mehreren Plattenpaaren über die Stirnseite des Plattenpaares versehen ist.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.

Ein gattungsgemäßer Plattenwärmeübertrager ist aus EP 697 09 719 T2 bekannt. Dieser Plattenwärmeübertrager besteht aus einem Plattenpaket, das aus einer Mehrzahl von am Umfang verschweißten Plattenpaaren gebildet wird, die aus länglichen Wärmeübertragungsplatten mit einem durchgehenden Fischgrätenmuster geprägt sind, das sich bis in die Kopfteile erstreckt, die bogenförmig die Wärmeübertragungsplatte begrenzen und mit einer mittig liegenden Durchflussöffnung ausgebildet sind, wobei jeweils die aneinander gefügten Plattenpaare am Umfang der angrenzenden Durchtrittsöffnungen zu einem kompakten Plattenpaket verschweißt sind. Die Wärmeübertragungsfläche ist dabei mit zusätzlichen Presserhebungen ausgebildet, die geringfügig höher als die Rippen sind und die vom Scheitel einer Rippe verlaufen und dabei das Wellental zwischen den beiden Rippen überbrückt. Dabei wird die Wärmeübertragungsplatte von einem umlaufenden Kantenbereich begrenzt, der mit dem Scheitel der Rippen in einer Ebene liegt, wobei die Presserhebungen von dieser Ebene ausgehen. Zur inneren Stabilität eines Plattenpaares bzw. des Plattenpakets sind die zusammengefügten Wärmeübertragungsplatten durch Zugabe von Hartlot an den Berührungspunkten hart verlötet. Ein derartig ausgebildetes Plattenpaket beeinträchtigt infolge der Presserhebungen das Strömungsverhalten der beteiligten Medien in den Plattenzwischenräumen und weist nur geringe Abstützpunkte auf, die zwangsläufig zur Verringerung der Druckstabilität des Plattenpakets führen. Darüber hinaus weisen die Wärmeübertragungsplatten infolge des Fischgrätenmusters keinen gleichmäßig umlaufenden Randbereich auf, was eine qualitätsgerechte Verschweißung zweier Wärmeübertragungsplatten zu einem Plattenpaar erheblich erschwert.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 Presserhebungen which are slightly higher than the ribs and extending from the apex of a rib, thereby bridging the wave trough between the two ribs. In this case, 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. For internal stability of a plate pair or the plate package, 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. In addition, due to the herringbone pattern, 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.

Ein derartig ausgebildetes Plattenpaket ist nach der EP 697 09 719 T2 in einem Gehäuse mit einem mantelseitigen Zu- und Ablauf zu den Plattenzwischenräumen der Plattenpaare und mit einem stirnseitigen Zu- und Ablauf für ein zweites Medium zu den Zwischenräumen zwischen den Plattenpaaren eingesetzt. Dabei ist zwischen dem obersten Plattenpaar und einer oberen Wand des Gehäuses je ein Verbindungsstück mit einer Öffnung angeordnet, die koaxial mit dem mantelseitigen Zu- und Ablauf des Gehäuses und den Durchtrittsöffnungen des Plattenpaares verläuft.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. In this case, 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.

Diese Verbindungsstücke sind jeweils an den angrenzenden Durchtrittsöffnungen des obersten Plattenpaares hart verlötet und gegen die Innenfläche der oberen Wand des Gehäuses mit Dichtungen gedichtet und weisen jeweils zwei Gewindebolzen auf, die durch Löcher in der oberen Wand des Gehäuses gedichtet durchgeführt sind. Mit diesen Gewindebolzen wird dann das Plattenpaket an der Innenfläche des Gehäuses gezogen. Mit der Befestigung des Plattenpakets gegen die Innenfläche der oberen Wand des Gehäuses bleibt die Innenfläche der unteren Wand des Gehäuses als Gegenlager für das Plattenpaket bedeutungslos.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.

Folglich wird der im Plattenpaket wirkende Druck über die Länge des Plattenpaketes und das Gewicht des Plattenpaketes nur über die Hartlötstellen zwischen den Wärmeübertragungsplatten der Verlötungen des mantelseitigen Zu- und Ablaufs aufgenommen.Consequently, the pressure acting in the plate pack over the length of the plate pack and the weight of the plate pack is absorbed only via the braze joints between the heat transfer plates of the soldering of the shell-side inlet and outlet.

Die Folge ist, dass ein Plattenwärmeübertrager dieser Art nur eine sehr geringe Druckstabilität aufweist und damit für den Einsatz im Hochdruckbereich nicht nutzbar ist. Unabhängig davon besteht auch im Niederdruckbereich immer die Gefahr, dass in Folge des vorherrschenden Drucks und des Gewichts des Plattenpaketes insbesondere die Lötstellen zwischen den Verbindungsstücken und den Öffnungen des obersten Plattenpaares abreißen, was zwangsläufig einen Ausfall des Plattenwärmeübertragers zur Folge hat, da es zum Vermischen der beiden beteiligten Medium kommt. Durch die Befestigung an der Innenfläche der oberen Wand des Gehäuses tritt aber auch zwischen der Innenflächen unter der Wand und der angrenzenden Wärmeübertragungsplatte des Plattenpaketes verstärkt ein Bypass des stirnseitig durchströmenden Mediums auf, der wie allgemein bekannt, den thermischen Wirkungsgrad und auch die Durchsatzleistung des Plattenwärmeübertragers erheblich verringert.The result is that a plate heat exchanger of this type has only a very low pressure stability and thus is not available for use in the high pressure area. Regardless, there is always the risk that even in the low pressure range that tear down in particular the solder joints between the connecting pieces and the openings of the uppermost plate pair due to the prevailing pressure and the weight of the plate package, which inevitably has a failure of Plattenwärmeübertragers result because it is used to mix the both involved medium comes. By attaching to the inner surface of the upper wall of the housing but also occurs between the inner surfaces of the wall and the adjacent heat transfer plate of the plate pack reinforced by a bypass of the front side flowing medium on, as known, the thermal efficiency and the throughput of the plate heat exchanger significantly reduced.

Damit der thermische Verlust über das Gehäuse gering gehalten werden kann und eine ausreichende Druckstabilität sowie innere Stabilität des Gehäuses erreicht wird, sind die Gehäusewände mit verhältnismäßig dicker Wandstärke auszulegen, die das Kosten-Nutzen-Verhältnis des Plattenwärmeübertragers beeinträchtigen. Aber auch die Durchsatzleistung eines derartig ausgebildeten Plattenwärmeübertragers ist begrenzt und kann nicht variabel bei geringstem Platzbedarf variiert werden.Thus, 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.

Darüber hinaus ist durch die Abdichtung der Verbindungsstücke zur Innenfläche der oberen Wand des Gehäuses und durch die notwendige Abdichtung der Schraubenbolzen im Durchdringungsbereich der oberen Wand des Gehäuses eine verschleißfreie Funktionsweise des Plattenwärmeübertragers im Hochdruckbereich sowie bei einem breit gefächerten Temperaturbereich nicht in jedem Fall gewährleistet.In addition, by the sealing of the connecting pieces to the inner surface of the upper wall of the housing and the necessary sealing of the bolts in the penetration of the upper wall of the housing a wear-free operation of the plate heat exchanger in the high pressure region and a wide temperature range is not guaranteed in each case.

Aus der DE 10 2004 022 433 A1 ist eine Wärmeübertragungsplatte für einen geschweißten Plattenwärmeübertrager der gattungsgemäßen Art bekannt, die eine rechteckige Form aufweist, die an den beiden Stirnseiten mit bogenförmigen Kopfteilen begrenzt ist, in denen je eine mittig liegende Durchflussöffnung vorgesehen ist und die, wie in Fig.1 - 2 gezeigt, in den Kopfteilen und dem rechteckigen Teil der Wärmeübertragungsfläche eine geradlinig und quer in einem Winkel zur Längsachse der Wärmeübertragungsplatte verlaufende Wellenstruktur aufweist, die im Randbereich der Wärmeübertragungsfläche und der Kopfteile einen an der Peripherie umlaufenden profilfreien Schweißrand gleicher Breite bildet. Eine derart ausgebildete Wellenstruktur weist beim Zusammenfügen von zwei Wärmeübertragungsplatten über die gesamte Länge des gebildeten Zwischenraums eine hohe Anzahl punktförmiger Abstützpunkte auf, die infolge der punktförmigen Abstützung ein Auftreten von Vorzugsströmungen im Zwischenraum weitgehend ausschließen.From the DE 10 2004 022 433 A1 a heat transfer plate for a welded plate heat exchanger of the generic type is known, 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.

Versuche haben aber auch überraschend gezeigt, dass durch einen gleich breiten profilfrei umlaufenden Schweißrand und durch eine Vielzahl von punktförmigen Abstützpunkten, die sich gleichmäßig über die Länge und Breite bis zum profilfreien Schweißrand eines Zwischenraums von zwei zusammengefügten länglichen Wärmeübertragungsplatten erstrecken, wie es bei einer Wärmeübertragungsplatte nach der DE 10 2004 022 433 A1 der Fall ist, eine sehr hohe Druckbeständigkeit des Plattenpakets und auch eine gute Strömungscharakteristik erreicht werden kann.Experiments have also surprisingly shown that extend through an equally wide profile-free circumferential welding edge and a plurality of point-shaped support points extending evenly over the length and width to the profile-free welding edge of a gap of two joined elongated heat transfer plates, as in a heat transfer plate after of the DE 10 2004 022 433 A1 the case is, a very high pressure resistance of the plate package and also a good flow characteristics can be achieved.

EP 0 285 504 A1 beschreibt einen Wärmetauscher zum Wärmeaustausch zwischen einem ersten Fluidstrom und einem zweiten Fluidstrom, umfassend ein Bündel von parallelen Röhren, die in einer ersten Richtung orientiert sind und worin das erste Fluid zirkuliert, wobei mindestens eines der Enden der Röhren mit dem Inneren einer Fluidkammer kommuniziert, wobei die zweite Fluidstrom außerhalb der Rohre in einer zweiten Richtung quer zu der ersten Richtung entlang von Wärmetauscherelementen strömt, die in thermischem Kontakt mit den Rohren stehen. Die Röhren sind in einem Gehäuse zwischen den beiden Gehäuseteilen in der ersten Richtung festgelegt, wobei das Gehäuse einen Einlass und einen Auslass für den zweiten Fluidstrom aufweist, eine Passage für das zweite Fluid definiert und über den gesamten Querschnitt mit Wärmetauscherelementen gefüllt ist. 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.

Aus GB 2 130 354 A ist ein Ölkühler in Scheibenbauweise mit wenigstens einem mit einem Zulauf und einem Ablauf für das zu kühlende öl versehenen Scheibenpaket bekannt, das in einem mit einem Wassereinlauf und einem Wasserauslauf versehenen Gehäuse angeordnet ist, wobei zwischen den parallel zur Wasserströmungsrichtung verlaufenden Seiten des Scheibenpakets und den diesen gegenüberliegenden Gehäusewänden jeweils eine Dichtleiste angeordnet ist.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 beschreibt einen Rohrbündelwärmetauscher, bei dem zwischen Rohren und Gehäusewänden Kissen aus Fasermaterial wie Metallwolle oder Glaswolle eingelegt sind. 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.

Aufgabe der Erfindung ist es daher, den eingangs genannten Plattenwärmeübertrager dadurch zu verbessern, dass unter Verwendung einer aus der DE 10 2004 022 433 A1 bekannten Wärmeübertragungsplatte, ein mantelseitiger Bypass mindestens auf ein Minimum beschränkt werden kann, der thermische Wirkungsgrad durch eine verbesserte Strömungscharakteristik erhöht wird und ein Plattenwärmeübertrager dichtungslos als Kompaktplattenwärmeübertrager mit einem in weiten Grenzen variabel auslegbaren Durchsatz bei geringstem Platzbedarf bis in den Hochdruckbereich und auch für einen Temperaturbereich von -200 °C bis +1200 °C bei einem verbesserten Kosten-Nutzen-Verhältnis einsetzbar ist sowie wirtschaftlicher hergestellt und servicefrei betrieben werden kann.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.

Diese Aufgabe wird erfindungsgemäß durch einen Kompaktplattenwärmeübertrager gemäß Anspruch 1 oder Anspruch 2 gelöst, bei dem zwischen den beiden Innenseiten der parallel verlaufenden Seitenteile des Gehäuses und den Längsseiten des verspannten Plattenpakets ein Füllmaterial eingelegt ist,
ein oder mehrere aus verschweißten Plattenpaaren gebildete Plattenpakete zwischen der oberen und unteren Gehäuseplatte des Gehäuses und den parallel verlaufenden Seitenteilen sowie mit dem eingelegten Füllmaterial metallisch gedichtet verspannt sind,
die obere und untere Gehäuseplatte mit den parallel verlaufenden Seitenteilen des Gehäuses zu einem Gehäusemantel verschweißt sind, der beiderseits durch ein Stirnteil mit oder ohne Anschlussstutzen zu einem druckstabilen und gasdichten Gehäuse (1) verschlossen ist und
einem Gehäuse, das mit mindestens zwei versetzt angeordneten und um den Gehäusemantel umlaufenden Rippen versteift ist.
Bei dem Kompaktplattenwärmeübertrager des Anspruchs 1 sind mindestens zwei Plattenpakete in einem Gehäuse angeordnet, die jeweils durch eine mit den Stirnteilen des Gehäuses verbundene Trennwand getrennt sind, wobei die Plattenzwischenraume der angrenzenden Plattenpakete wechselseitig von jedem der beiden Medien im Gegenstrom durchströmt sind, in dem wechselseitig die auf einer Ebene nebeneinander liegenden Durchtrittsöffnungen der Wärmeübertragungsplatten zweier benachbarter Plattenpakete durch einen Rohrbogen kurzgeschlossen sind, der die obere und/oder untere Gehäuseplatte gasdicht durchdringt und jede Trennwand wechselseitig am Stirnteil festgelegt ist und sich mindestens über die Länge der zu trennenden Plattenpakete erstreckt und stirnseitig zwischen zwei benachbarten Plattenpaketen und dem gegenüber liegenden Stirnteil einen Überströmbereich ausbildet.This object is achieved by 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.
In 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 Plattenzwischenraume the adjacent plate packs are alternately flowed through by each of the two media in countercurrent, in the mutually the On a plane adjacent through openings of the heat transfer plates of two adjacent plate packs are short-circuited by a pipe bend, 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.

Auf diese Weise kann der Kompaktplattenwärmeübertrager sehr wirtschaftlich mit einer Größe von Wärmeübertragungsplatten, die sehr druckstabil ausgelegt werden kann, für sehr große Durchsatzleistungen im Hochdruckbereich und auch für große Druckdifferenzen zwischen den durchströmenden Medien sehr druckstabil ausgelegt werden. Durch die wechselnde Strömungsrichtung der Medien in den einzelnen Plattenpaketen und der Möglichkeit, dass die beiden durchströmenden Medien sowohl im Gleich- sowie auch im Gegenstrom geführt werden können, ist auch die Voraussetzung gegeben, dass der thermische Prozess im Kompaktplattenwärmeübertrager an verschiedene Einsatzzwecke für die thermische Behandlung zweier oder mehrerer Medien besser angepasst werden kann.In this way, 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.

Bei dem alternativen Kompaktplattenwärmeübertrager des Anspruchs 2 sind im Gehäuse ein oder mehrere nebeneinander angeordnete und durch eine Trennwand getrennte Paketstapel eingesetzt und jeder Paketstapel besteht aus gleichmäßig in der horizontalen Ebene zueinander versetzten Plattenpaketen, die untereinander durch Trennbleche getrennt sind, wobei die Plattenzwischenräume der versetzten Plattenpakete eines Paketstapels getrennt und die Plattenzwischenräume der versetzten Plattenpakete eines Plattenstapels jeweils gemeinsam von dem ersten Medium in gleicher Fließrichtung direkt aus einem am Gehäuse gasdicht verschweißten Verteiler und Sammler und über zugeordnete Anschlussstutzen, die jeweils am Umfang der Durchtrittsöffnung der Wärmeübertragungsplatte des angrenzenden Plattenpakets gasdicht verschweißt sind, mantelseitig durchströmt sind und dass das zweite Medium in einer Fließrichtung die Plattenzwischenräume aller im Gehäuse gemeinsam verspannten Plattenpakete stirnseitig durchströmt. Mit dieser Ausführungsform kann der Kompaktplattenwärmeübertrager mit einer sehr hohen Durchsatzleistung ausgelegt werden, der einen relativ geringen Platzbedarf erfordert. Durch die Vielzahl der Plattenpakete, die ebenfalls aus Wärmeübertragungsplatten einer Größe bestehen, die sehr druckstabil ist, ist auch diese Ausführungsform des Kompaktplattenwärmeübertragers bis in die höchsten Druckbereiche zur thermischen Behandlung der Medien einsetzbar.In the alternative compact plate heat exchanger of claim 2 in the housing one or more juxtaposed and separated by a partition stack of parcels are used and 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. With this embodiment, 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.

Vorteilhaft bei dieser Ausführungsform ist auch, wenn die Plattenzwischenräume der jeweils gleichmäßig versetzten Plattenpakete eines Plattenstapels über getrennt zugeordnete Ein- und Austrittsstutzen durchströmt sind, die am Umfang der Durchtrittsöffnung der Wärmeübertragungsplatte des versetzt angrenzenden Plattenpakets und im Durchdringungsbereich des Gehäuses gasdicht verschweißt sind. Auf diese Weise können die mantelseitig durchströmten Plattenzwischenräume der Plattenpakete des Plattenstapels, die in einer gemeinsamen horizontalen Ebene versetzt sind, gleichzeitig von unterschiedlichen Medien durchströmt werden, wobei die stirnseitigen durchströmten Plattenzwischenräume des Kompaktwärmeübertrages nur von einem Medium durchströmt sind. Folglich wird dadurch der Einsatzbereich des Kompaktplattenwärmeübertragers erweitert und ein derartiger Kompaktplattenwärmeübertrager kann mit einem wesentlich verbesserten Kosten-Nutzen-Verhältnis betrieben werden.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. In this way, 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 Kompaktwärmeübertrages 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.

Ein nach diesen Kombinationsmerkmalen hergestellter Plattenwärmeübertrager ist ein dichtungsloser und nur metallisch gedichteter druckstabiler und verschweißter Kompaktplattenwärmeübertrager, der ohne weitere zusätzliche Spannmittel bis in den Hochdruckbereich und in einem Temperaturbereich von -200 °C bis 1200 °C geeignet ist.A produced after these combination characteristics 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.

Durch den Einsatz der aus der DE 10 2004 022 433 A1 bekannten Wärmeübertragungsplatte kreuzen sich die Wellenkämme beim Aneinanderfügen zweier gegeneinander um 180° gedrehten Wärmeübertragungsplatten bis an den umlaufenden profilfreien Schweißrand regelmäßig und bilden somit über die gesamte Breite und Länge des Plattenzwischenraums sich regelmäßig wiederholende Abstützpunkte. Damit erhält jeder Plattenzwischenraum über die Länge und Breite eine sehr hohe Druckstabilität und auf zusätzliche Verbindungen der jeweils angrenzenden Abstützpunkte kann auch dann verzichtet werden, wenn die Plattenzwischenräume zwischen den verschweißten Plattenpaaren und den zusammengefügten Plattenpaaren mit Medien beaufschlagt werden, die den Kompaktplattenwärmeübertrager mit einer sehr hohen Druckdifferenz durchströmen.By using the from the DE 10 2004 022 433 A1 known heat transfer plate, 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. This gives each plate gap over the length and width of a very high pressure stability and on additional connections of the respective adjacent support points can also be dispensed with if the plate interspaces between the welded plate pairs and the assembled plate pairs are exposed to media that flow through the compact plate heat exchanger with a very high pressure difference.

Mit der annähernd punktförmigen Überschneidung der Wellenkämme, die gleichzeitig die Abstützpunkte ausbilden, kann auch ausgeschlossen werden, dass sich beim Durchströmen der Medien unerwünschte Vorzugsströmungen im Plattenzwischenraum ausbilden, die, wie bekannt, die Strömungscharakteristik eines Plattenzwischenraums beeinträchtigen und damit den thermischen Wirkungsgrad des Kompaktplattenwärmeübertragers verringern.With the approximately punctiform intersection of the wave crests, which simultaneously form the support points, can also be excluded that form undesirable preferred flows in the plate gap as they flow through the media, which, as is known, affect the flow characteristics of a plate gap and thus reduce the thermal efficiency of Kompaktplattenwärmeübertragers.

Die punktförmigen Abstützungen eines Plattenzwischenraums belegen in der Addition auch nur einen sehr geringen Teil der Durchströmungsfläche. Folglich wird die thermisch wirksame Durchströmungsfläche eines jeden Plattenzwischenraums nur minimal durch die Abstützpunkte beeinträchtigt.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.

Mit dem eingelegten Füllmaterial zwischen den Längsseiten des Gehäuses und der Längsseite des angrenzenden Plattenpakets, das gemeinsam mit dem Plattenpaket über die obere und untere Gehäuseplatte sowie den parallel verlaufenden Seitenteilen des Gehäuses verspannt ist, wird ein mantelseitiger Bypass auf ein Minimum begrenzt, wobei das Füllmaterial gleichzeitig eine thermisch isolierende Wirkung gegenüber den Seitenteilen des Gehäuses hat. Damit werden die Wirkungsgrad und Leistung mindernden Faktoren des Bypasses aber auch der thermischen Abstrahlung über das Gehäuse wesentlich eingeschränkt.With the inserted filling material between the longitudinal sides of the housing and the longitudinal side of the adjacent plate pack, which is clamped together with the plate pack on the upper and lower housing plate and the parallel side parts of the housing, 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. Thus, the efficiency and performance-reducing factors of the bypass but also the thermal radiation through the housing are significantly limited.

Mit der Verspannung der Plattenpakete durch die obere und untere Deckplatte des Gehäuses sowie der parallel verlaufenden Seitenteile des Gehäuses, die nach dem Verspannen zu einem Gehäusemantel gasdicht verschweißt werden, wird aber auch sicher gestellt, dass jeder Abstützpunkt im Plattenzwischenraum des verspannten Plattenpaketes mit einer einheitlichen Spannkraft beaufschlagt ist und damit der Plattenzwischenraum über die Länge und Breite eine gleiche Druckstabilität aufweist und zum anderen wird das Plattenpaket über die obere und untere Deckplatte und die beiden parallel verlaufenden Seitenteile gut metallisch gedichtet und ohne weitere Hilfsmittel im Gehäuse stabilisiert.With the clamping of the plate packs by the upper and Lower cover plate of the housing and the parallel side parts of the housing, which are gas-tight welded after clamping to a housing shell, but also ensures that each support point is acted upon in the plate gap of the strained plate pack with a uniform clamping force and thus the plate gap over the length and width has the same pressure stability and on the other hand, the plate package on the upper and lower cover plate and the two parallel side panels is sealed well metallized and stabilized without further aids in the housing.

Durch die gasdichte Verschweißung der mantelseitig vorgesehenen Ein- und Austrittsstutzen am Umfang der Durchtrittsöffnung der angrenzenden Wärmeübertragungsplatte und der anschließenden gasdichten Verschweißung der beiden Stutzen im Durchdringungsbereich sowie der gasdichten Verschweißung der Stirnteile des Gehäuses ist der Kompaktplattenwärmeübertrager völlig frei von Dichtungen und damit servicefrei nutzbar.Due to the gas-tight welding of the shell-side inlet and outlet nozzles on the circumference of the passage opening of the adjacent heat transfer plate and the subsequent gas-tight welding of the two nozzles in the penetration and the gas-tight welding of the end portions of the housing of the compact plate heat exchanger is completely free of seals and thus serviceless usable.

Mit der Versteifung des Gehäuses über umlaufende Rippen verfügt auch das Gehäuse selbst über eine sehr hohe Druckstabilität, so dass der Kompaktplattenwärmeübertrager in Verbindung mit dem druckstabil ausgeführten Plattenpaket auch mit einem Mediendruck beaufschlagt werden kann, der im absoluten höchsten Druckbereich bei der Wärmeübertragung zweier Medien liegt. Vielmehr, durch die Versteifung des Gehäuses mit umlaufenden Rippen kann die Materialdicke der oberen und unteren Gehäuseplatte sowie der beiden parallel verlaufenden Seitenteile des Gehäuses in Abhängigkeit der Anzahl der umlaufenden Rippen auch beim Einsatz des Kompaktplattenwärmeübertragers mit sehr hohem Mediendruck gegenüber den bekannten Plattenwärmeübertragern dieser Art verringert werden.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 ,

Ein nach der erfinderischen Lehre ausgelegter Kompaktplattenwärmeübertrager ist, auch wie bei geschraubten Plattenwärmeübertragern üblich, im Baukastensystem aber auch zur Herstellung mit automatisierten Fertigungsanlagen geeignet und damit sehr wirtschaftlich herstellbar.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.

Die Anbringung der umlaufenden Rippen am Gehäuse kann in unterschiedlichen technologischen Schritten erfolgen, wobei folgende Ausführungsarten bevorzugt vorgeschlagen werden.The attachment of the circumferential ribs on the housing can take place in different technological steps, wherein the following embodiments are preferably proposed.

Die Rippen sind Rippenabschnitte, die einstückig mit der oberen und unteren Gehäuseplatte sowie den Seitenteilen sind, wobei jeweils die angrenzenden Enden der einzelnen Rippenabschnitte nach dem Verspannen des Plattenpakets mit der oberen und unteren Gehäuseplatte und so wie der beiden parallel verlaufenden Seitenteilen mit einander verschweißt sind.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.

Die Rippen können aber auch umlaufende auf dem Gehäusemantel aufgeschweißte Rippenabschnitte sein, wobei die Enden der angrenzenden Rippen verschweißt sind.However, the ribs can also be circumferential rib sections welded onto the housing jacket, wherein the ends of the adjacent ribs are welded.

Die Rippen können aber auch in Form des Gehäusemantels vorgefertigte geschlossene Rippen sein, die auf dem Gehäusemantel aufgeschrumpft sind.But the ribs can also be in the form of the housing shell prefabricated closed ribs, which are shrunk on the housing shell.

Bevorzugt sind die Stirnseiten des Gehäuses gasdicht am Gehäusemantel angeschweißt.Preferably, the end faces of the housing are gas-tight welded to the housing jacket.

Es kann aber auch für spezielle Einsatzzwecke von Kompaktplattenwärmeübertragern vorteilhaft sein, wenn eine oder beide Stirnseiten lösbar gasdicht und druckstabil am Gehäusemantel festgelegt sind. In diesen Fällen wird eine lösbare Verbindung zwischen Gehäusemantel und Stirnseite, die eine Schaubverbindung sein kann, über Stehbolzen empfohlen.However, it may also be advantageous for special applications of compact plate heat exchangers, if one or both end faces are releasably gas-tight and pressure-resistant fixed to the housing shell. In these cases, a detachable connection between the housing shell and the front side, which can be a Schaub connection, recommended using stud bolts.

Vorteilhafterweise ist das eingesetzte Füllmaterial ein Metallgeflecht oder ein Drahtgestrick oder ein Glasgraphitgestrick. Diese Füllmaterialien sind sehr flexibel und hitzebeständig sowie auch resistent gegen aggressive Medien. Durch die hohe Flexibilität dieser Füllmaterialien ist auch eine behinderungsfreie Verformbarkeit beim Verspannen des Plattenpakets mit den Gehäuseteilen gegeben. Darüber hinaus sichern diese Füllmittel auch nach dem Verspannen eine stabile Lage des Plattenpakets und verfügen auch im verspannten Zustand noch über ein ausreichendes isolierendes Luftpolster. Nach einer weiteren vorteilhaften Ausführungsform der Erfindung ist das Füllmaterial mindestens im stirnseitig liegenden Ein- und Austrittsbereich des Gehäuses mit einem Ableitblech gegenüber dem stirnseitig liegenden Ein- und Austrittsbereich des Gehäuses überdeckt und metallisch abgedichtet. Auf diese Weise kann ein Bypass zwischen den Längsseiten des Plattenpakets und der Seitenteile des Gehäuses, der die Leistung und den Wirkungsgrad des Kompaktplattenwärmeübertragers beeinträchtigt, ausgeschlossen werden.Advantageously, 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. According to a further advantageous embodiment of the invention, 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 Kompaktplattenwärmeübertragers be excluded.

Nach einer weiteren bevorzugten Ausführungsform der Erfindung ist zwischen jeder Trennwand und der Längsseiten des jeweils Paketstapels ein Füllmaterial eingelegt und das Füllmaterial ist mittels eines Ableitblechs abgedichtet.According to a further preferred embodiment of the invention, 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.

Damit werden Temperaturbrücken zwischen den angrenzenden Plattenpaketen bzw. Plattenstapeln und folglich Temperaturüberschläge auf das angrenzende Plattenpaket bzw. den angrenzenden Plattenstapel verhindert. Gleichzeitig wird auf diese Weise ausgeschlossen, dass zwischen den Längsseiten der Plattenpakete und der Trennwände ein Bypass entsteht.Thus, thermal bridges between the adjacent plate packs or stacks of plates and thus temperature flashovers on the adjacent plate pack or the adjacent plate stack are prevented. At the same time it is excluded in this way that creates a bypass between the longitudinal sides of the plate packs and the partitions.

Durch diese mehrfache Anordnung von Plattenpaketen mit Wärmeübertragungsplatten, die in einer Größe ausgelegt werden kann die druckseitig eine sehr hohe Stabilität aufweist und die zusätzliche Verstärkung der Gehäuse mit umlaufenden Rippen, ist die Voraussetzungen geschaffen, dass der Kompaktplattenwärmeübertrager problemlos mit beliebig großen Wärmeübertragungsflächen für die höchsten Druckbereiche druckstabil ausgelegt werden kann.By this multiple arrangement of plate packs with heat transfer plates, which can be designed in a size on the pressure side has a very high stability and the additional reinforcement of the housing with circumferential ribs, the conditions is created that the compact plate heat exchanger easily with any large heat transfer surfaces for the highest pressure ranges can be designed pressure stable.

Weitere Einzelheiten der Erfindung ergeben sich aus der nachfolgenden ausführlichen Beschreibung und den beigefügten Zeichnungen, in denen eine bevorzugte Ausführungsform eines Kompaktplattenwärmeübertragers gezeigt sind.Further details of the invention will become apparent from the following detailed description and the accompanying drawings, in which a preferred embodiment of a Kompaktplattenwärmeübertragers are shown.

In den Zeichnungen zeigen:

  • Fig. 1: : einen verschweißten Kompaktplattenwärmeübertrager mit einem Plattenpaket,
  • Fig. 1A einen Schnitt A-A von Fig. 1,
  • Fig. 2: : eine Darstellung eines erfindungsgemäßen Kompaktplattenwärmeübertragers mit zwei Plattenpaketen,
  • Fig. 3: einen Schnitt A-A von Fig. 2,
  • Fig. 4: einen Schnitt B-B von Fig. 2,
  • Fig. 5: : eine mögliche Ausführungsform des erfindungsgemäßen Kompaktplattenwärmeübertragers mit drei Plattenpaketen,
  • Fig. 6: einen Schnitt A-A von Fig. 5,
  • Fig. 7: : einen Schnitt B-B von Fig. 5,
  • Fig. 8: : eine alternative Ausführungsform des erfindungsgemäßen Kompaktplattenwärmeübertragers mit drei Plattenstapeln,
  • Fig. 9: : einen Schnitt A-A von Fig. 8;
  • Fig. 10: : einen Schnitt B-B von Fig. 8,
  • Fig. 11: : einen erfindungsgemäßen Kompaktplattenwärmeübertrager mit drei Plattenstapeln mit je einem Schnitt im mantelseitigen Ein- und Austrittsbereich,
  • Fig. 12: : eine Wärmeübertragungsplatte für einen erfindungsgemäßen Kompaktplattenwärmeübertrager,
  • Fig. 13: : ein schematisch dargestelltes Plattenpaket mit Wärmeübertragungsplatten nach Fig. 12.
In the drawings show:
  • Fig. 1 :: a welded compact plate heat exchanger with a plate package,
  • Fig. 1A a section AA of Fig. 1 .
  • Fig. 2 : a representation of a compact plate heat exchanger according to the invention with two plate packs,
  • Fig. 3 : a section AA of Fig. 2 .
  • Fig. 4 : a cut BB from Fig. 2 .
  • Fig. 5 : a possible embodiment of the compact plate heat exchanger according to the invention with three plate packs,
  • Fig. 6 : a section AA of Fig. 5 .
  • Fig. 7 :: a cut BB from Fig. 5 .
  • Fig. 8 : an alternative embodiment of the compact plate heat exchanger according to the invention with three plate stacks,
  • Fig. 9 :: a section AA of Fig. 8 ;
  • Fig. 10 :: a cut BB from Fig. 8 .
  • Fig. 11 : a compact plate heat exchanger according to the invention with three plate stacks, each with a cut in the shell-side inlet and outlet area,
  • Fig. 12 : a heat transfer plate for a compact plate heat exchanger according to the invention,
  • Fig. 13 :: a schematically represented plate package with heat transfer plates after Fig. 12 ,

In den Fig. 1, 1A ist das Grundsystem des Gehäuses 1 eines Kompaktplattenwärmeübertragers mit einem Plattenpaket 2 gezeigt. Das Gehäuse 1 besteht aus einer getrennt hergestellten oberen Gehäuseplatte 21 und unteren Gehäuseplatte 22 sowie Seitenteilen 23, 23a, die gemeinsam mit dem Plattenpaket 2, dem Füllmaterial 29, 29a und den Ableitblechen 30 - 30x zu einem Gehäusemantel verspannt und gasdicht verschweißt sind, der mit den Stirnteilen 24; 24a, die mit stirnseitigen Ein- bzw. Austrittsstutzen 15; 16 versehen sind, zu einem druckstabilen Gehäuse 1 verschlossen ist sowie Rippen 16-16x, die zueinander beabstandet den Gehäusemantel des Gehäuses 1 in geschlossener Form umlaufen.In the Fig. 1, 1A the basic system of the housing 1 of a compact plate heat exchanger with a plate package 2 is shown. 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.

Wie in Fig. 1A ersichtlich, ist zwischen den Längsseiten des Plattenpakets 2 und den Innenflächen der Seitenteile 23, 23a ein Füllmaterial 29, 29a eingelegt, das sich über die Länge und Breite der Innenfläche der Seitenteile 23, 23a erstreckt.As in Fig. 1A can be seen, between the longitudinal sides of the plate package 2 and the inner surfaces of the side parts 23, 23 a, 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.

Das Füllmaterial, das bei Kompaktplattenwärmeübertrager, wie auch bei den anderen beispielsweise gezeigten Ausführungsformen in Fig. 2, 5, 6 bevorzugt ein Metallgeflecht oder Drahtgestrick oder ein Glasgraphitstrick ist, ist beiderseits gegenüber dem stirnseitigen Ein- und Austrittsbereich des Gehäuses 1 mit Ableitblechen 30 - 30x überdeckt, die mit dem einen Ende gegen die Innenflächen der Stirnteile 24, 24a metallisch gedichtet und mit dem anderen Ende gegen die angrenzenden Stirnseiten 12, 12a des Plattenpakets 2 metallisch gedichtet sind, wie in Fig. 1A ersichtlich.The filler material used in compact plate heat exchangers, as well as in the other embodiments shown, for example, in FIG Fig. 2 . 5 . 6 Preferably, 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.

Das im Gehäuse 1 mit dem Füllmaterial 29, 29a und den Ableitblechen verspannte Plattenpaket 2 ist hilfsmittelfrei über die axial verlaufenden Innenflächen des Gehäuses 1 metallisch gedichtet verspannt und ist mantelseitig mit Eintrittsstutzen 13 (14) und Austrittsstutzen 14 (13) verbunden, welche die Gehäuseplatte 21 und/oder 22 koaxial durchdringen und am Umfang 27; 28 der Durchtrittsöffnungen 8, 9 der angrenzenden Wärmeübertragungsplatte 3, 4 des Plattenpakets 2 und im Durchdringungsbereich 25; 25a des Gehäuses 1 verschweißt sind.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.

Die das Gehäuse 1 ausbildenden Gehäuseteile 21, 22 und Seitenteile 23, 23a sind in einer Abmessung ausgelegt, in der ein eingesetztes Plattenpaket 2 in der horizontalen und in der vertikalen Ebene metallisch gedichtet im Gehäuse 1 verspannt ist und zwischen den beiden Stirnseiten 12; 12a des Plattenpakets 2 und den Stirnteilen 24; 24a des Gehäuses 1 ein freier Ein- bzw. Austrittsbereich verbleibt, die beide, wie bereits erwähnt, durch Ableitbleche 30 - 30x gegenüber dem Füllmaterial 29; 29x metallisch abgedichtet sind.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.

Die Abmessung des freien Ein- und Austrittsbereichs ist bevorzugt in einer Größe ausgelegt, so dass die Stirnseite 12(12a) des Plattenpakets 2 stets gleichmäßig mit dem Medium beaufschlagt ist, das über den Eintrittsstutzen 15(16) in den Kompaktplattenwärmeübertrager einströmt bzw. austrittsseitig gleichmäßig über die Stirnseite 12a(12) aus dem Plattenpaket 2 und dem Austrittsstutzen 16(15) aus dem Kompaktplattenwärmeübertrager ausströmt.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.

In den Fig.2 - 4 ist ein erfindungsgemäßer Kompaktplattenwärmeübertrager gezeigt, bei dem in einem nach dem Grundsystem des Gehäuses nach Fig. 1 und 2 ausgebildeten Gehäuse 1 zwei mit den Längsseiten nebeneinander angeordnete Plattenpakete 2, 2x gleicher Abmessung verspannt sind. Die beiden Plattenpakete 2, 2x sind durch eine Trennwand 38 getrennt, die an der Innenseite des Stirnteils 24a, das mit dem Eintrittsstutzen 15 und dem Austrittsstutzen 16 versehen ist, metallisch gedichtet festgelegt ist und sich über die Länge der beiden Plattenpakete 2, 2x erstreckt und gegenüber der Innenseite des Stirnteils 24a einen Überströmbereich 33 zwischen den Plattenpaketen 2, 2x für das Medium ausbildet, das die Plattenzwischenräume 10 der Plattenpakete 2, 2x stirnseitig durchströmt.In the Fig.2 - 4 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.

Die von einem Medien mantelseitig durchströmten Plattenzwischenräume 11 der beiden Plattenpakete 2, 2x sind am Ausgang des Plattenpakets 2 und am Eingang des Plattenpakets 2x durch einen Rohrbogen 31 kurzgeschlossen, der mit seinen Enden gasdicht die untere Gehäuseplatte 22 durchdringt und am Umfang 27 der Durchtrittsöffnungen 9 der angrenzenden Wärmeübertragungsplatten 3; 4, der Plattenpakete 2, 2x gasdicht verschweißt ist.The flowed through by a media side panel plate spaces 11 of the two plate packs 2, 2x are shorted at the output of the plate pack 2 and at the entrance of the plate pack 2x by a pipe bend 31, the gas-tightly penetrates the lower housing plate 22 with its ends and the circumference 27 of the openings 9 of adjacent heat transfer plates 3; 4, the plate packs 2, 2x gas-tight welded.

In der Länge der Innenflächen der Seitenteile 23, 23 des Gehäuses sowie an in der Länge der beiden Seiten der Trennwand 38 ist wiederum ein Füllmaterial eingesetzt, das beiderseits im stirnseitigen Ein- und Austrittsbereich des Gehäuses 1 sowie beiderseits des Überströmbereichs 33 durch Ableitbleche 30 - 30x metallisch abgedichtet ist, um einerseits einen Temperaturüberschlag zwischen den Plattenpaketen 2, 2x zu verhindern und andererseits einen Bypass zu unterbinden.In the length of the inner surfaces of the side parts 23, 23 of the housing and in the length of the two sides of the partition 38, in turn, a filling material is used, both sides in the frontal inlet and outlet region of the housing 1 and on both sides of the overflow region 33 by Ableitbleche 30 - 30x is metallically sealed, on the one hand to prevent a temperature flashover between the plate packs 2, 2x and on the other hand a To prevent bypass.

Bei dieser Ausführungsform werden die Plattenpakete 2, 2x von jedem Medium in entgegen gesetzter Fließrichtung durchströmt, wobei die beteiligten Medien sowohl im Gleichstrom als auch im Gegenstrom durch den Kompaktplattenwärmeübertrager durchströmen können.In this embodiment, 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 zeigen eine weitere mögliche Ausführungsform des erfindungsgemäßen Kompaktplattenwärmeübertragers nach Fig. 2 bis 4 mit drei nebeneinander angeordneten Plattenpaketen 2, 2a, 2x, die wiederum in einem Gehäuse 1 nach dem Grundsystem von Fig. 1, 2 verspannt sind. 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.

Bei dieser Ausführungsform sind die Trennwände 38, 38x zum Trennen der Plattenpakete 2, 2a, 2x wechselseitig zu den Innenflächen der Stirnteile 23, 23a gedichtet festgelegt und bilden damit den wechselseitigen Überströmbereich 33; 33x für das Medium aus, das stirnseitig die Zwischenräume 10 der Plattenpakete 2, 2a, 2x durchströmt. Die Plattenzwischenräume 11 der Plattenpakete 2, 2a. 2x, die mantelseitig durchströmt werden, sind wechselseitig am Ausgang des Plattenpakets 2 und am Eingang des Plattenpakets 2a sowie am Ausgang des Plattenpakets 2a und am Eingang des Plattenpakets 2x durch Rohrbögen 31, 31x kurzgeschlossen, die gasdicht die untere Gehäuseplatte 22 bzw. die obere Gehäuseplatte 21 durchdringen und jeweils am Umfang 27 bzw. 28 der Durchtrittsöffnung 9 bzw. 8 der angrenzenden Wärmeübertragungsplatte 3; 4 der Plattenpakete 2 bzw. 2x gasdicht verschweißt sind. Die Einlage des Füllmaterials 29, 29a mit dem Ableitblechen erfolgt analog der Ausführungsart nach Fig. 3 bzw. 4 und wird nur auf das mittlere Plattenpaket 2a erweitert.In this embodiment, 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 plate interspaces 11 of the plate packs 2, 2a. 2x, 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.

Bei dieser Ausführungsform werden die Plattenpakete von jedem Medium nacheinander und wechselseitig in entgegen gesetzter Fließrichtung durchströmt, wobei auch hierbei die beteiligten Medien den Kompaktplattenwärmeübertrager sowohl im Gleichstrom als auch im Gegenstrom durchströmen können.In this embodiment, 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 zeigen eine weitere mögliche Ausführungsform des Kompaktplattenwärmeübertragers nach Fig. 2 bis 4 mit beispielsweise drei nebeneinander angeordneten Plattenstapeln 40- 40 x, die aus getrennten Plattenpaketen 2, 2a - 2x gebildet werden und die wiederum gemeinsam mit dem Füllmaterial 29, 29a und den Ableitblechen 30 - 30x in einem Gehäuse 1 nach dem Grundsystem von Fig. 1, 2 verspannt sind. 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.

Die Plattenpakete 2, 2a, 2x eines jeden Plattenstapels 40-40x sind gleichmäßig horizontal versetzt und in diesem Fall durch Trennbleche 39; 39a getrennt.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.

Die Plattenzwischenräume 11 der Plattenpakete 2, 2a sind eintrittsseitig über getrennt geführte Anschlussstutzen 35, 35a, mit einem mantelseitig an der Gehäuseplatte 21 angeordneten Verteiler 34 verbunden, der mit dem Plattenzwischenraum 11 des Plattenpakets 2x direkt in Verbindung steht. Analog ist der Plattenzwischenraum 11 des Plattenpakets 2x austrittsseitig direkt und die Plattenzwischenräume 11 der Plattenpakete 2, 2a austrittsseitig über getrennt geführte Anschlussstutzen 35b, 35x mit einem mantelseitig an den an der Gehäuseplatte 22 angeordneten Sammler 36 verbunden. Am Verteiler 34 ist der Eintrittsstutzen 13 und am Sammler 36 ist der Austrittsstutzen 14 gasdicht festgelegt, über die ein mantelseitig zugeführtes Medium gemeinsam zu dem Kompaktplattenwärmeübertrager zu- und abgeführt wird.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. Analogously, 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. On the manifold 34 of the inlet nozzle 13 and the 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.

Die Plattenzwischenräume 10 der Plattenpakete 2, 2a, 2x eines jeden Plattenstapels 40 - 40x werden über den stirnseitig angeordneten Ein- und Austrittsstutzen gemeinsam vom zweiten Medium stirnseitig je nach Anschlussart des Kompaktplattenwärmeübertragers im Gegenstrom oder Gleichstrom durchströmt.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.

Die nebeneinander angeordneten Plattenstapel 40 -40x sind durch Trennwände 38, 38x getrennt, die eine Länge aufweisen, die annähernd der Länge eines versetzten Plattenpakets 2, 2a, 2x entspricht. Die obere und untere Gehäuseplatte 21, 22 sowie die beiden parallel verlaufenden Seitenteile 23, 23a weisen ebenfalls eine Abmessung auf, bei der die Plattenstapel 40 - 40x und die und die Plattenpakete 2, 2a, 2x der Plattenstapel 40 -40x mit den Füllmaterial 29, 29a im und mit dem verspannten Gehäuse 1 metallisch gedichtet sind und im Gehäuse 1 beiderseits ein stirnseitiger Freiraum gewährleistet ist, dass einerseits beim Anströmen der Stirnseite 12 der Plattenpakete 2, 2a, 2x der Plattenstapel 40 - 40x eine Vorzugsströmung zu dem Zwischenraum 10 ausgeschlossen ist und andererseits ein behinderungsfreies Ausströmen aus den Plattenzwischenräumen 10 der Plattenpakete 2, 2a, 2x der Plattenstapel 40 - 40 sichergestellt ist.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.

Bei Bedarf können aber auch die Plattenzwischenräume 11 der Plattenpakete 2, 2a, 2x eines Plattenstapels 40 - 40x mit unterschiedlichen Medien beaufschlagt werden. In diesem Fall werden die getrennt geführten eintrittsseitigen Anschlussstutzen 35, 35a sowie die austrittsseitigen Anschlussstutzen 35b, 35x nicht mit dem Verteiler 24 bzw. mit dem Sammler 36 verbunden, sondern die Anschlussstutzen 35, 35a sind direkt mit einem gesonderten Eintrittsstutzen 13 bzw. Anschlussstutzen 35b, 35x verbunden, die mit einem gesonderten Austrittsstutzen 14 verbunden sind.If required, however, the plate interstices 11 of the plate packs 2, 2a, 2x of a plate stack 40-40x can be subjected to different media. In this case, 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.

Ein Plattenpaket 2 - 2x für einen derartig ausgebildeten Kompaktplattenwärmeübertrager besteht, wie in Fig. 13 gezeigt, aus einem Plattenpaket 2, das aus Plattenpaaren 5 - 5x gebildet wird, die am Umfang 27; 28 der Durchtrittsöffnungen 8; 9 gasdicht verschweißt sind und einen Plattenzwischenraum 10 für den Durchfluss eines Mediums über die Stirnseite 12, 12a des Plattenpakets 2 bilden, wobei jedes Plattenpaar 5; 5x aus zwei in Fig. 4 gezeigten identischen Wärmeübertragungsplatten 3, 4 besteht, die in der eigenen Ebene um 180° relativ zur anderen gedreht und entlang ihres umlaufenden Randbereichs gasdicht zu einem Plattenpaar 5 verschweißt sind und somit einen Plattenzwischenraum 11 für den Durchfluss eines zweiten Mediums über die Durchtrittsöffnungen 8, 9 ausbilden.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 ,

Die dafür eingesetzten Wärmeübertragungsplatten 3; 4 bestehen, wie in Fig. 12 gezeigt, aus einer rechteckigen Wärmeübertragungsfläche 17, die beiderseits durch bogenförmig verlaufende Kopfteile 6, 7 begrenzt ist, wobei der Bogenradius bevorzugt der halben Breite der Wärmeübertragungsplatte 3; 4 beträgt. Die rechteckige Wärmeübertragungsfläche 17 und die Kopfteile 6, 7 sind mit einem Wellenprofil 18 versehen, das eine einheitliche Wellenstruktur aufweist, die geradlinig in einem gleichen Winkel zur Längsachse und bis in den Randbereich 19 der Wärmeübertragungsplatte 3; 4 verläuft und im Randbereich 19 der Wärmeübertragungsplatten einen umlaufenden profilfreien Schweißrand 20 gleicher Breite ausbildet.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.

BezugszeichenlisteLIST OF REFERENCE NUMBERS

  • 1 Gehäuse1 housing
  • 2 - 2x : Plattenpaket2 - 2x: plate pack
  • 3 Wärmeübertragungsplatte3 heat transfer plate
  • 4 Wärmeübertragungsplatte4 heat transfer plate
  • 5 - 5x : Plattenpaar5 - 5x: plate pair
  • 6 Kopfteil6 headboard
  • 7 Kopfteil7 headboard
  • 8 Durchtrittsöffnung8 passage opening
  • 9 Durchtrittsöffnung9 passage opening
  • 10 Plattenzwischenraum zwischen 2 Plattenpaaren10 plate gap between 2 plate pairs
  • 11 : Plattenzwischenraum im Plattenpaar11: plate gap in the plate pair
  • 12, 12a : Stirnseite12, 12a: front side
  • 13 Eintrittsstutzen13 inlet nozzles
  • 14 Austrittsstutzen14 outlet nozzle
  • 15 stirnseitige Eintrittsstutzen15 end entry ports
  • 16 stirnseitige Austrittsstutzen16 end outlet nozzles
  • 17 rechteckige Wärmeübertragungsfläche17 rectangular heat transfer surface
  • 18 Wellenstruktur18 wave structure
  • 19 Randbereich19 border area
  • 20 : profilfreier Schweissrand20: profile-free edge of the weld
  • 21 : obere Gehäuseplatte21: upper housing plate
  • 22 untere Gehäuseplatte22 lower housing plate
  • 23, 23a : Seitenteile23, 23a: Side parts
  • 24, 24a : Stirnteil24, 24a: front part
  • 25, 25a : Durchdringungsbereich - Gehäuse25, 25a: Penetration area - housing
  • 26, 26x : Rippen26, 26x: ribs
  • 27 Umfang der Durchtrittsöffnungen27 circumference of the passage openings
  • 28 Umfang der Durchtrittsöffnungen28 circumference of the passage openings
  • 29 - 29x : Füllmaterial29 - 29x: filling material
  • 30 - 30x : Ableitblech30 - 30x: deflector plate
  • 31 - 31x : Rohrbogen31 - 31x: pipe bend
  • 32, 32a : Durchdringung Gehäuse32, 32a: penetration housing
  • 33 - 33x : Überströmbereich33 - 33x: overflow area
  • 34 Verteiler34 distributors
  • 35 Anschlussstutzen35 connecting pieces
  • 35a : Anschlussstutzen35a: connecting piece
  • 35x : Anschlussstutzen35x: connecting piece
  • 36 : Sammler36: collector
  • 37 : Anschlussstutzen37: Connecting piece
  • 37a : Anschlussstutzen37a: connecting piece
  • 37x : Anschlussstutzen37x: connecting piece
  • 38, 38x : Trennwand38, 38x: partition
  • 39, 39a : Trennblech39, 39a: separating plate
  • 40 : Paketstapel40: package stack
  • 40a : Paketstapel40a: package stack
  • 40x : Paketstapel40x: package stack

Claims (10)

  1. Compact plate heat exchanger, with
    - a plate stack (2) composed of profiled heat exchange plates (3; 4) which have a rectangular shape and are delimited on both sides by an arcuately formed head part (6; 7) with a through-orifice (8; 9) lying centrally in the head part (6; 7), in each case two mutually joined heat exchange plates (3, 4), which form a plate interspace (11) for the throughflow of a first medium via the through-orifices (8, 9), being welded to one another, gas-tight, at the circumference to form a plate pair (5), and at least two joined-together plate pairs (5, 5x) in each case being welded together, gas-tight, at the circumference (27; 28) of the two through-orifices (8; 9) to form a plate stack (2), which joined-together plate pairs form a plate interspace (10) for the throughflow of a second medium via the end faces (12, 12a) of the plate stack (2), and
    - a gas-tight and pressure-stable housing (1), with a casing-side inflow and outflow connection piece (13; 14) for the first medium for flowing through the plate interspace (11) of one or more plate pairs (5 - 5x), and with end-face inflow and outflow connection pieces (15; 16) for the second medium for flowing through the plate interspaces (10) between two or more plate pairs (5 - 5x) via the end faces (12, 12a) of the plate stack (2),
    - the heat exchange plate (3; 4) being provided in the rectangular heat exchange surface (17) and the head parts (6, 7) with a wavy profile (18) having a continuous uniform wavy structure which in the marginal region (19) of the rectangular heat exchange surface (17) and the head parts (6; 7) forms a profile-free welding margin (20) of identical width running around the periphery of the heat exchange plate (3; 4), and
    - the inflow and outflow connection pieces (13; 14) to the plate interspaces (11) of the plate pairs (5 - 5x) being welded together, gas-tight, at the circumference (27; 28) of the through-orifice (8; 9) of the heat exchange plate (3; 4) of the contiguous plate pair (5; 5x) and in the region of penetration (25; 25a) of the housing plates (21; 22) of the housing (1),
    characterized in that
    - a filling material (29; 29a) is introduced between the two inner sides of the parallel-running side parts (23; 23a) of the housing (1) and the longitudinal sides of a plate stack (2; 2x),
    - one or more plate stacks (2 - 2x) formed from welded-together plate pairs (5 - 5x) are braced, sealed metallically, between the upper and the lower housing plate (21, 22) of the housing (1) and the parallel-running side parts (23, 23a) and also by means of the introduced filling material (29, 29a),
    - the upper and the lower housing plate (21, 22) are welded to the longitudinally running side parts (23, 23a) of the housing (1) to form a housing casing which is closed on both sides by an end part (24, 24a), with or without a connection piece (15; 16), to form a pressure-stable and gas-tight housing (1),
    - the housing casing is stiffened by means of at least two ribs (16 - 16x) arranged so as to be offset and running around the housing casing, and
    - at least two plate stacks (2 - 2x) are arranged in the housing (1) and are separated in each case by a partition (38; 38a - 38x) connected to the end parts (24 and 24a) of the housing (1), each of the two media flowing alternately in countercurrent through the plate interspaces (10; 11) of the contiguous plate stacks (2 - 2x) in that the through-orifices (9) and the through-orifice (8) of the heat exchange plates (3; 4) of two adjacent plate stacks (2, 2a - 2x) are short-circuited alternately by means of a pipe bend (31; 31x) which penetrates, gas-tight, through the housing plate (21; 22), and each partition (38; 38a - 38x) is secured alternately to the end part (24 and 24a), extends at least over the length of the plate stacks (2, 2a - 2x) to be separated and forms an overflow region (33; 33x) on the end faces between two adjacent plate stacks (2, 2a - 2x) and the end parts (24a and 24).
  2. Compact plate heat exchanger, with
    - a plate stack (2) composed of profiled heat exchange plates (3; 4) which have a rectangular shape and are delimited on both sides by an arcuately formed head part (6; 7) with a through-orifice (8; 9) lying centrally in the head part (6; 7), in each case two mutually joined heat exchange plates (3, 4), which form a plate interspace (11) for the throughflow of a first medium via the through-orifices (8, 9), being welded to one another, gas-tight, at the circumference to form a plate pair (5), and at least two joined-together plate pairs (5, 5x) in each case being welded together, gas-tight, at the circumference (27; 28) of the two through-orifices (8; 9) to form a plate stack (2), which joined-together plate pairs form a plate interspace (10) for the throughflow of a second medium via the end faces (12, 12a) of the plate stack (2), and
    - a gas-tight and pressure-stable housing (1), with a casing-side inflow and outflow connection piece (13; 14) for a first medium for flowing through the plate interspace (11) of one or more plate pairs (5 - 5x) and with end-face inflow and outflow connection pieces (15; 16) for the second medium for flowing through the plate interspaces (10) between two or more plate pairs (5 - 5x) via the end faces (12, 12a) of the plate stack (2),
    - the heat exchange plate (3; 4) being provided in the rectangular heat exchange surface (17) and the head parts (6, 7) with a wavy profile (18) having a continuous uniform wavy structure which in the marginal region (19) of the rectangular heat exchange surface (17) and the head parts (6; 7) forms a profile-free welding margin (20) of identical width running around the periphery of the heat exchange plate (3; 4), and
    - the inflow and outflow connection pieces (13; 14) to the plate interspaces (11) of the plate pairs (5 - 5x) being welded together, gas-tight, at the circumference (27; 28) of the through-orifice (8; 9) of the heat exchange plate (3; 4) of the contiguous plate pair (5; 5x) and in the region of penetration (25; 25a) of the housing plates (21; 22) of the housing (1),
    characterized in that
    - a filling material (29; 29a) is introduced between the two inner sides of the parallel-running side parts (23; 23a) of the housing (1) and the longitudinal sides of a plate stack (2; 2x),
    - one or more plate stacks (2 - 2x) formed from welded-together plate pairs (5 - 5x) are braced, sealed metallically, between the upper and the lower housing plate (21, 22) of the housing (1) and the parallel-running side parts (23, 23a) and also by means of the introduced filling material (29, 29a),
    - the upper and the lower housing plate (21, 22) are welded to the longitudinally running side parts (23, 23a) of the housing (1) to form a housing casing which is closed on both sides by an end part (24, 24a), with or without a connection piece (15; 16), to form a pressure-stable and gas-tight housing (1),
    - the housing casing is stiffened by means of at least two ribs (16 - 16x) arranged so as to be offset and running around the housing casing, and
    - one or more stack piles (40, 40a - 40x) arranged next to one another and separated by a partition (38; 38a - 38x) are inserted in the housing (1) and each stack pile (40, 40a; 40x) consists of plate stacks (2, 2a - 2x) which are offset to one another uniformly in the horizontal plane and are separated from one another by separating sheets (39; 39a - 39x), the plate interspaces (11) of the offset plate stacks (2 - 2x) of a stack pile (40 - 40x) being separated, and the first medium flowing on the casing side through the plate interspaces (11) of the offset plate stacks (2 - 2x) of a stack pile (40 - 40x) in each case jointly in the same direction of flow directly out of a distributor (34) and header (36), welded, gas-tight, to the housing (1) and via assigned connection pieces (35; 35a; 35b; 35x) which are in each case welded together, gas-tight, at the circumference of the through-orifice (8, 9) of the heat exchange plate (3; 4) of the contiguous plate stack (2; 2x), and in that the second medium flows in a direction of flow on the end faces through the plate interspaces (10) of all the plate stacks (2 - 2x) braced jointly in the housing (1).
  3. Compact plate heat exchanger according to Claim 1 or 2, characterized in that the ribs (16 - 16x) consist of rib portions which are formed in the lower and the upper cover plate (21, 22) and the side parts (23, 23a) and the contiguous ends of which are welded together, or of rib portions which are welded on peripherally around the housing casing and the contiguous ends of which are welded together, or in that the ribs (16 - 16x) are closed ribs (16 - 16x) which are prefabricated in the form of a housing casing and which are shrunk on the housing casing.
  4. Compact plate heat exchanger according to one of Claims 1 to 3, characterized in that the end faces (23, 23a) of the housing (1) are welded, gas-tight, to the housing casing.
  5. Compact plate heat exchanger according to one of Claims 1 to 3, characterized in that the end faces (23, 23a) of the housing (1) are releasably secured, gas-tight and pressure-stable, to the housing casing.
  6. Compact plate heat exchanger according to Claim 5, characterized in that the releasable connection between the housing casing and the end faces (23, 23a) is a screw connection via stay bolts.
  7. Compact plate heat exchanger according to one of Claims 1 to 6, characterized in that the filling material is a metal braiding or a wire knit or a glass graphite knit.
  8. Compact plate heat exchanger according to one of Claims 1 to 7, characterized in that, at least in the end-face inflow and outflow region of the housing (1), the filling material is covered and metallically sealed off with respect to the end-face inflow and outflow region of the housing (1) by means of a diversion sheet (30 - 30x).
  9. Compact plate heat exchanger according to one of Claims 2 to 8, characterized in that the flow passes through the plate interspaces (11) of the in each case uniformly offset plate stacks (2 - 2x) of a stack pile (40 - 40x) via separately assigned inflow and outflow connection pieces (12, 14) which are welded together, gas-tight, at the circumference (27; 28) of the through-orifice (8; 9) of the heat exchange plate (3; 4) of the offset-contiguous plate stack (2; 2x) and in the region of penetration (25; 25a) of the housing (1).
  10. Compact plate heat exchanger according to one of Claims 1 to 9, characterized in that a filling material (29; 29a) is introduced between each partition (38 - 38x) and the longitudinal sides of the in each case contiguous plate stack (2 - 2x) or stack pile (40 - 40x), and the filling material (29; 29a) is sealed off by means of a diversion sheet (30; 30x).
EP06026846.3A 2006-12-23 2006-12-23 Compact plate heat exchanger Not-in-force EP1936311B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP06026846.3A EP1936311B1 (en) 2006-12-23 2006-12-23 Compact plate heat exchanger

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP06026846.3A EP1936311B1 (en) 2006-12-23 2006-12-23 Compact plate heat exchanger

Publications (2)

Publication Number Publication Date
EP1936311A1 EP1936311A1 (en) 2008-06-25
EP1936311B1 true EP1936311B1 (en) 2013-10-02

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Publication number Priority date Publication date Assignee Title
EP2136175B1 (en) * 2008-06-21 2016-06-22 Joachim Schult Heat transfer plate, plate pair, plate stack, compact plate heat exchanger and its manufacturing process
IT1398347B1 (en) * 2010-02-23 2013-02-22 Mta Spa UNIT FOR THE THERMAL TREATMENT OF A FLUID.
DE202010014128U1 (en) * 2010-10-12 2011-02-24 Tranter Pressko Gmbh Assembly of heat exchanger and liquid separator
EP2541181B1 (en) * 2011-06-30 2014-07-09 Alfa Laval Corporate AB Module of heat transfer plates and plate heat exchanger comprising such module
FR2995672B1 (en) * 2012-09-19 2014-10-03 Air Liquide HEAT EXCHANGER AND METHOD OF INSTALLING A GAS SEPARATION UNIT COMPRISING SUCH HEAT EXCHANGERS
JP7046767B2 (en) 2018-09-11 2022-04-04 株式会社神戸製鋼所 Heat exchanger
WO2022026172A1 (en) * 2020-07-27 2022-02-03 Repligen Corporation High-temperature short-time treatment device, system, and method
FR3122728B1 (en) * 2021-05-06 2023-06-02 Commissariat A L’Energie Atomique Et Aux Energies Alternatives Channel plate heat exchanger module incorporating at least one fluid supply and distribution zone formed by studs.

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US6016865A (en) * 1996-04-16 2000-01-25 Alfa Laval Ab Plate heat exchanger
GB2426322A (en) * 2005-07-22 2006-11-22 Michael Tate Exhaust Gas Heat Exchanger

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US6016865A (en) * 1996-04-16 2000-01-25 Alfa Laval Ab Plate heat exchanger
GB2426322A (en) * 2005-07-22 2006-11-22 Michael Tate Exhaust Gas Heat Exchanger

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