EP2136175B1 - Plaque d'échange de chaleur, paire de plaques, pile de plaques, échangeur de chaleur à plaques compactes et son procédé de fabriquation - Google Patents

Plaque d'échange de chaleur, paire de plaques, pile de plaques, échangeur de chaleur à plaques compactes et son procédé de fabriquation Download PDF

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Publication number
EP2136175B1
EP2136175B1 EP08011315.2A EP08011315A EP2136175B1 EP 2136175 B1 EP2136175 B1 EP 2136175B1 EP 08011315 A EP08011315 A EP 08011315A EP 2136175 B1 EP2136175 B1 EP 2136175B1
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EP
European Patent Office
Prior art keywords
plate
housing
plates
heat exchanger
compact
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Not-in-force
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EP08011315.2A
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German (de)
English (en)
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EP2136175A1 (fr
Inventor
Joachim Schult
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Schult Joachim
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Schult Joachim
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Priority to EP08011315.2A priority Critical patent/EP2136175B1/fr
Publication of EP2136175A1 publication Critical patent/EP2136175A1/fr
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
    • F28D9/00—Heat-exchange apparatus having stationary plate-like or laminated conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall
    • F28D9/0006—Heat-exchange apparatus having stationary plate-like or laminated conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall the plate-like or laminated conduits being enclosed within a pressure vessel
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
    • F28D9/00—Heat-exchange apparatus having stationary plate-like or laminated conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall
    • F28D9/0031—Heat-exchange apparatus having stationary plate-like or laminated conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall the conduits for one heat-exchange medium being formed by paired plates touching each other
    • F28D9/0043—Heat-exchange apparatus having stationary plate-like or laminated conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall the conduits for one heat-exchange medium being formed by paired plates touching each other the plates having openings therein for circulation of at least one heat-exchange medium from one conduit to another
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F3/00—Plate-like or laminated elements; Assemblies of plate-like or laminated elements
    • F28F3/02—Elements or assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with recesses, with corrugations
    • F28F3/04—Elements or assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with recesses, with corrugations the means being integral with the element
    • 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
    • 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
    • F28F2275/00—Fastening; Joining
    • F28F2275/06—Fastening; Joining by welding
    • 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

Definitions

  • the invention relates to a heat transfer plate for a fully welded compact plate heat exchanger having a thermally effective surface with a profile, a first and a second passage opening for a second flowing medium, which are arranged over the thermally effective surface, and a circumferential profile-free welding edge.
  • the invention further relates to a fully welded compact plate heat exchanger and a method for its production.
  • an elongated profiled heat transfer plate for a plate heat exchanger having a brazed plate pack is known.
  • This heat transfer plate has a rectangular shape which is arc-shaped at the end faces.
  • a lying on a common center line inlet or outlet opening is provided for the one medium, wherein the center line is equal to the longitudinal axis of the heat transfer plate.
  • the heat transfer surface is formed with a herringbone pattern and parallel to the main flow direction elevation and of a circumferential edge region limited, which lies with the apex of the ribs in a plane, the elevations and ribs emanating from this plane.
  • two heat transfer plates are welded to the cartridge along their peripheral edges and form a plate gap, which is flowed through the inlet and outlet openings of the one medium and two stacked cassettes are welded around the inlet and outlet openings around and form one Plate gap, the shell side is flowed through by the second medium.
  • at least the contiguous heat transfer plates in each second plate interspace are brazed to where the profile or elevations of the heat transfer surface contact to achieve a plurality of connection points with the goal that the elevations do not transmit forces between the heat transfer plates.
  • Such a formed heat transfer plate has on the one hand as a result of the surveys on an unfavorable flow characteristics in the formed plate interstices and on the other hand reduces the effective thermal surface.
  • the heat transfer surface is limited by arcuate head portions and in which an inlet or outlet opening on a center line, which is equal to the longitudinal axis of the heat transfer plate, located in the head parts.
  • the rectangular part of the heat transfer surface and the two head parts are formed with a corrugated profile having a rectilinear and transverse [alpha] wave structure in the edge region of the heat transfer surface and the head parts surrounding a profile-free welded edge at the periphery of the heat transfer plate same width forms.
  • the plate pack two of these heat transfer plates are welded at the periphery of the passages to plate pairs forming the plate space for the shell side flowing medium and then the plate pairs are welded to the circumferential profile-free welding edge and form the plate gap for the medium, the plate package on the one - flows through and outlet openings.
  • the heat transfer plates and the plate pairs are joined together without tools and rely exclusively on the points of contact of the profile of the heat transfer surface, so that on the one hand, the heat transfer surface is completely used thermally and on the other hand the flow characteristics in the plate gaps are not affected.
  • this heat transfer plate has the profile-free circumferential welding edge of the same width over a homogeneously circumferential welding path, which usually allows a uniform weld, but the problem was found that the welding of two heat transfer plates can be performed without tension to a pair of plates. Consequently, there is tension distortions of the two heat transfer plates, which make a gas-tight welding of the pairs of plates on the profile-free welding edge on the one hand production technology considerably and on the other subject to the running circumferential weld a constant voltage, depending on the pressure conditions in the plate interspaces with the duration to cracks in the circumferential weld and thus can lead to a leaky plate package.
  • a heat transfer plate for a plate heat exchanger is known in which two media flow through a formed from these heat transfer plates plate package from the outside and inside in countercurrent.
  • the Heat transfer plates consist of a rectangular profiled heat transfer surface which is arranged at an angle to the end face mutually staggered inlet and outlet openings so that the inlet and outlet openings are laterally adjacent to the longitudinal sides of the heat transfer surface.
  • the flow connection on one side of the heat transfer plate from the inlet opening via the angled heat transfer surface to the outlet takes place on the one hand via a correspondingly profiled and triangular-shaped manifold section having one longitudinal side and a correspondingly profiled and triangular-shaped collector section and the other side of the angled lying Heat transfer surface limited, wherein the other side is flowed on the shell side, in which the mutually free areas between the heat transfer surface and the peripheral edge of the heat transfer plates are formed only with spacer cams.
  • To form the plate pack heat transfer plates are stacked and soldered together in a brazing furnace. This heat transfer plate has only a short thermally effective length.
  • this heat transfer plate is not suitable due to their structural design for compact plate heat exchangers with a small footprint, which must ensure a reliable function with high efficiency, even at high pressure and temperature differences in the adjacent plate interstices.
  • the object of the invention is therefore to improve the heat transfer plates mentioned above in that the ratio of the designed surface of a heat transfer plate is improved in favor of the thermally effective heat transfer surface and interpret the heat transfer plate so that the welding of heat transfer plates on the periphery of Passages to plate pairs can be done stress-free to keep the welds of a welded plate package free of internal stresses, also the peripheral edges of the heat transfer plates have a uniformly homogeneous course, which ensures an automated welding of the plate pairs at the peripheral edges and to propose a compact heat plate with this heat transfer plate, in which a plate pack is metallically sealed in a housing, even at very high pressure differences and temperature differences of -200 to +1200 ° C in the adjacent plate interstices ensures a constant pressure stability and its throughput is small in a small space within wide limits variable.
  • the object is achieved with a generic heat transfer plate mentioned above, wherein the thermally effective surface of the heat transfer plate is bounded on both sides by a plate portion having a passage opening, wherein the plate portions outside the thermally active surface and each other are formed diagonally offset on the heat transfer plate and so thermally effective surface are placed, that the thermally effective surface is flowed directly through the passage opening and wherein the circumferential profile-free welding edge are formed at the frontal transitions of the boundary of the thermally effective surface to the plate portions and the diagonally opposite corners of the thermally effective surface with radii equal to the radius that circumscribes the plate sections.
  • thermally effective area defined passage openings and the proportion of the thermally effective area was increased to the total area of a heat transfer plate, so that with the same material use a higher efficiency of a heat transfer plate is achieved.
  • the profile of the thermally effective surface is formed with a wave profile profile that expires in the adjacent region of the passage openings.
  • a profiled inflow region or outflow region extending transversely to the thermally effective surface is provided. Both embodiments do not affect the advantages achieved with the heat transfer plate and are freely selectable depending on the selected wave structure and the pressure loss to be reached in the plate package.
  • the profile of the profiled thermally effective surface on a continuous wave structure which extends transversely or at an equal angle to the thermally active surface may also have a herringbone-like wave profile.
  • the compact plate heat exchanger consists of a housing with frontally and shell side arranged inlet and outlet nozzle and at least one incorporated therein plate pack consisting of two each connectionless joined heat transfer plates according to the invention, the sealing at the periphery of the passages to a pair of plates and connection-free adjoined plate pairs on the periphery of the plate pairs are welded and in which a medium flows through the end-lying passage openings formed plate interstices of the adjacent plate pairs and at least a second medium flows through the shell-side connecting piece of the housing, the plate interspaces of the plate pairs, wherein at least one of two connectionless stacked plate pairs existing and by two End plates for connecting the inlet or outlet nozzle limited plate package in the housing übe r the upper housing plate, the lower housing plate and the side parts is clamped metallically sealed, in which the plate package are clamped together with the housing plate and the side parts under a predetermined clamping pressure and after reaching the clamping pressure, the housing parts are welded together with the side parts to
  • This compact plate heat exchanger according to the invention is very economical to produce and ensured by the clamping of the plate pack between the upper and lower housing plate and the two side parts, which are welded to a housing shell after clamping, even without further aids a very pressure stable embedded plate package, which is independent of printing and temperature differences in the adjacent plate interspaces over the length of the thermally effective surfaces and also over the length of the heat transfer plates themselves has a high pressure stability. Consequently, even without an additional metallic connection of the mutually supporting heat transfer plates, for example by brazing, it can be ensured that the flow cross sections of the plate interspaces remain stable and thus the designed flow characteristic and the pressure loss of the plate pack remain constant. Rather, by the compact embodiment, a compact plate heat exchanger can be provided, which requires a very small footprint with the same capacity compared to comparable heat exchangers.
  • a plate package formed with the heat transfer plate according to the invention can also be used in compact plate heat when it is to be operated in countercurrent or direct current or else in crossflow.
  • a filler material is inserted between the side parts and the plate package, which together with the Plate package, the cover plates and the side parts is braced. This can be inserted in a very simple way and without tools, the filler to minimize a possible bypass flow.
  • the filling material is preferably a metal mesh or a wire mesh or a glass graphite knit.
  • the fillers are wear-free and temperature-resistant and pressure-resistant and do not affect the service-free operation and the potential applications of the compact plate heat exchangers.
  • the end plates of the plate pack are non-profiled end plates having a thickness greater than the thickness of a heat transfer plate, wherein the inlet or outlet nozzle is welded or connected via a seal to the end plates.
  • the connecting pieces for the inflow and outflow of the second medium can be easily attached to the plate pack.
  • the lower and upper cover plate of the housing with the same stability and pressure safety of the plate pack can be made thinner, since the inner clamping forces of the plate pack are already approximately compensated by the two cover plates.
  • the front sides of the housing are gas-tight welded or releasably gas-tight and pressure stable fixed to the housing shell.
  • the manner of the frontal closure of the housing is dependent on the type and intended use of Kompaktplatten Anlagenübertragers.
  • the uniform pressure stability in the plate pack over the length of the plate pack is supported by at least two staggered ribs, which circumscribe the housing casing of the housing closed.
  • the arrangement of the closed ribs is ensured in particular for longer plate packs, but generally no pressure deformation across the length of the plate package deformation due to the internal pressure in the plate package on the housing shell occurs inevitably due to the freely joined heat transfer surfaces to a change in the cross section of the plate interspaces would lead in the plate package and thus negatively influenced the flow characteristics of the media.
  • the thickness of the plates which form the housing shell can also be reduced by the closed ribs, which can be arranged several times on the housing jacket, without adversely affecting the pressure stability of the plate package.
  • the ribs may consist of rib sections which are formed or welded in the lower and upper cover plate and the side parts and whose adjacent ends are welded together or the ribs are prefabricated rings in the form of the housing shell, which are shrunk onto the housing shell.
  • At least two plate packs are arranged in a housing, 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 adjacent on one level 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 frontally between two adjacent plate packs and the opposite end portion 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 media flowing can be performed both in DC as well as in countercurrent, the condition is given that the thermal process in the compact plate heat exchanger to different applications for the thermal treatment of two or several media can be better adapted.
  • each stack of parcels consists of uniformly offset in the horizontal plane plate packs, which are separated from each other 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 interspaces of all clamped together in the housing plate packs flows through the front side.
  • 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, wherein the front-side flowed through plate interstices of Kompaktplattenkorübertragers 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.
  • a filling material is inserted between each partition wall and the longitudinal sides of the respective stack of packages and the filling material is sealed by means of a Ableitblechs.
  • This will be temperature bridges between the adjacent Disk packs or plate stacks and thus prevents temperature flashovers on the adjacent plate pack or the adjacent plate stack. 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.
  • heat transfer plate 3 and the in Fig. 1A shown heat transfer plate 3a with mirrored profile profile of the thermally effective surface opposite the thermally effective surface of the heat transfer plate 3 are drawn from a die heat transfer plates 3, 3a, which consist of a profiled rectangular thermally effective surface 17, on both sides by plate sections 12, 12a with a passage opening eighth or 9 is limited.
  • the thermally effective surface 17 is, as in Fig. 1 to Fig. 1A shown, provided with a retracted profile 18, which in these cases preferably has a wave structure which extends straight at an equal angle [alpha] to the longitudinal axis and into the edge region 19 of the thermally active surface 17 and in the edge region 19 of thermally effective surface 17 forms a circumferential profile-free welding edge 20 of equal width.
  • the wave structure of the profile 18 may also include a herringbone-like wave structure or other wave structures, which is then also formed into the edge region 19 of the thermally active surface and a profile-free welding edge 20 of equal width.
  • the thermally effective surface 17 is on both sides of plate portions 12; 12a limited, wherein the plate portions 12, 12a in the longitudinal axis of the thermally active surface 17 are mutually offset diagonally and outside but over the thermally effective surface 17.
  • the plate sections 12; 12a have a circular peripheral edge and a dimension resulting from the sum of the diameter of a passage opening 8; 9 of the width of the profile-free welding edge 20 of the thermally effective surface 17 results.
  • the transitions 6, 6a of the plate sections 12, 12a to the edge region 19 of the thermally active surface and the diagonally opposite corners 7, 7a of the thermally active surface 17 are formed with a radius equal to the radius of the plate sections 12, 12a.
  • the heat transfer plate 3 is rotated by a homogeneous welding edge 20 of equal width, which is very advantageous for the welding of the plate pairs to a plate package and on the other hand, improved evasion and improved heat dissipation in the welding of two heat transfer plates. 3 to a plate pair on the circumference of the passage openings 8 and 9 achieved.
  • the profile 18 of the thermally effective surface up to the Through openings 8, 9 are formed, as in Fig. 1 and Fig. 1A shown or as in Fig. 1B can be impressed between the passage openings 8, 9 and the thermally effective surface 17, a correspondingly profiled inlet or outflow region 4, via which the thermally effective surface 17 is flowed.
  • a plate pack 2 of heat transfer plates 3, as in Fig. 1B is formed, of course, the thermally effective area of the heat transfer plate 3 of the plate pair is formed with a mirrored profile 18, as in Fig. 1A shown.
  • FIG. 2 shown plate package 2 consists of a number of stacked plate pairs 5 - 5x, the stack of plate pairs 5 - 5x by profile-less end plates 41; 41a is limited on both sides, which are provided according to the design of Kompaktplattenkorübertragers with openings that are congruent to the passage openings 8; 9 of the heat transfer plates 3, 3a lie and where the inlet or outlet pipe 13; 14 are connected.
  • a pair of plates 5 consists of a heat transfer plate 3 and a heat transfer plate 3a, the connectionless joined together and the circumference 27; 28 of the passage openings 8; 9 gas-tight inside and outside to a pair of plates 5 are welded.
  • the heat transfer plate 3a relative to the heat transfer plate 3 a mirrored profile profile in the thermally active surface 17, so that the profiles 18 of the thermally effective surfaces 17 of the heat transfer plates 3 and 3a, supported by the wave crests on a plurality of connection-free and point-shaped support points and Form the plate gap 11, which is flowed through the shell side.
  • the plate pairs 5 formed in this way are stacked according to the capacity of the disk pack 2 to be designed into a stack of disk pairs 5 - 5x, with the adjacent disk pairs 5, 5a; 5x are welded gas-tight to each other on the circumferential profile-free welding edge 20.
  • the plate pairs 5-5 are stacked in such a way that always two thermally effective surfaces 17 of the heat transfer plates 3, 3a are mutually supported, so that on the intersecting crests of the mirrored profiles 18 turn a variety of connection-free and point-shaped support points arise form the plate gap 10, which is traversed through the passage openings 8, 9.
  • the so-connected plate pairs 5-5x are on both sides with profile-less end plates 41; 41a, which are each welded gas-tight over the profile-free welding edge 20 of the adjacent heat transfer plate 3 or 3a of the first or last plate pair 5, 5x to the plate package 2.
  • end plates 41, 41 a bores are formed according to the intended embodiment of Kompaktplattenkorübertragers lying congruent to the passage openings 8, 9 and lying on the inlet and outlet pipe 13; 14, which penetrate a housing plate 21 and 22 sealed, are determined by a welded connection or releasably sealed connection.
  • the end plates 41; 41a has a greater thickness than the heat transfer plates 3, 3a in order to partially compensate for the internal pressure of a plate pack 2 and to relieve the cover plates 21 or 22 of the housing 1 on the pressure side.
  • Fig. 3 to Fig. 4 is the basic system of a compact plate heat exchanger with a housing 1 and a, as described above, formed Plate package 2 shown.
  • the housing 1 consists of a separately prepared upper housing plate 21 and lower housing plate 22, which are penetrated according to the design of the compact plate heat exchanger of the inlet and outlet ports 13, 14 for the medium and with the end plates 41; 41 a of the plate pack 2 are connected to the side parts 23, 23 a, and the end faces 24, 24 a at the turn according to the design of the compact plate heat exchanger, the inlet and outlet ports 15; 16 are set.
  • the compact plate heat exchanger consisting of these housing parts and the plate pack formed as described above is executed without seals in such a way that the upper cover plate 21 and lower cover plate 22, which seal the plate packet 2 without seal, together with the side parts 23, 23 a and between the side parts 23, 23a and the plate pack 2 on both sides inserted filling material 29, 29a, in the plate packet-free space each with a discharge plate 30; 30a; 30b; 30c clamped under a predetermined clamping pressure and after reaching the clamping pressure and maintaining the clamping pressure, the upper housing plate 21 and the lower housing plate 22 with the side parts 23, 23a is welded tightly to a housing shell.
  • the plate pack is pressure-stable and sealed metallic sealed in a pressure-resistant housing shell, which is welded by the end portions 24, 24a with the corresponding fixed inlet and outlet nozzle to a closed housing 1 or sealed sealed.
  • Plate packs 2 are preferably provided around the housing shell spaced and self-contained ribs 16-16x, which ensure that even at a very high pressure difference in the plate interspaces 10 and 11 or at pressure shocks always over the length of the plate package. 2 a constant clamping pressure on the housing shell acts on the plate pack 2.
  • the ribs 16-16x may be ribs 16-16x welded to the shell, which are welded together at the adjoining ends, or closed ribs 16-16x, which have the shape of the shell 1 and are shrunk onto the shell 1.
  • the filling material 29 - 29x is always between the longitudinal sides of the plate pack 2 and the inner surfaces of the side parts 23, 23a of a plate package and extends over the length and width of the inner surface of the side parts 23, 23a.
  • the filling material 29-29x is preferably a metal mesh or wire mesh or a glass-graphite knit and is covered on both sides in the plate-packet-free space of the housing 1 with deflector plates 30-30x which are metallically sealed at one end against the inner surfaces of the end parts 24, 24a and at the other end are metallically sealed against the adjacent end faces of the plate package 2.
  • the clamped in the housing 1 on the housing shell with the filler 29, 29a and Ableitblechen plate pack 2 is tool-free metallically sealed on the axially extending inner surfaces of the housing 1 and is connected to inlet nozzle 13 (14) and outlet nozzle 14 (13), which the housing plate 21st and / or 22 coaxially penetrate and at the periphery of the delimiting bore of the end plates 41, 41 a of the Plate pack 2 and in the penetration area 25; 25a of the housing 1 are preferably 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.
  • Fig.5 - 8 is a compact plate heat exchanger shown in which in one of the basic system of the housing after Fig. 3-5 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.
  • a filler material is used on both sides in the frontal inlet and outlet region of the housing 1 and both sides of the overflow region 33 by Ableitbleche 30 - 30x metallic is sealed, on the one hand to prevent a temperature flashover between the plate packs 2, 2x and on the other hand to prevent a bypass.
  • the plate packs 2, 2 are traversed by each medium in the opposite direction of flow, wherein the media involved can flow both in cocurrent and in countercurrent through the compact plate heat exchanger.
  • Fig. 9 shows a section of a further possible embodiment of the Kompaktplattenkorübertragers with three juxtaposed plate packs 2, 2a, 2x, which in turn in a housing 1 according to the basic system of Fig. 3-5 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 or 2x are welded gas-tight.
  • 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 of each medium are successively and alternately flowed through in the opposite direction of flow, in which case the media involved can flow through the compact plate heat exchanger both cocurrent and countercurrent.
  • Fig. 10 - 12 show another possible embodiment of the compact plate heat exchanger after Fig. 3 to 5 with, for example, three juxtaposed plate stacks 40 - 40 x, which are formed from separate plate packages 2, 2a - 2x and which in turn together with the filling material 29, 29a and the discharge plates 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 which is arranged on the casing plate 21 on the casing side and which is directly in communication with the plate interspace 11 of the plate packet 2x.
  • the plate interspace 11 of the plate package 2 x exit side and the plate interstices 11 of the plate packages 2, 2 a on the outlet side via separately guided connection piece 35 b, 35 x connected to a shell side on the arranged on the housing plate 22 collector 36.
  • the outlet nozzle 14 is fixed gas-tight, via the one 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 flowed through the front side inlet and outlet nozzles together from the first medium end face depending on the connection of Kompaktplattenkorübertragers in countercurrent or direct current.
  • 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 in which the plate stacks 40-40x and the plate packs 2, 2a, 2x of the plate stacks 40-40x with the filling material 29, 29a in and are metallically sealed with the strained housing 1 and in the housing 1 on both sides a free space is guaranteed, 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 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 with a separate outlet connection 14 are connected.

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)

Claims (15)

  1. Plaque d'échange de chaleur pour un échangeur à coques compactes entièrement soudé avec :
    - une surface à action thermique (17) avec un profil (18) ;
    - une première et une deuxième ouverture traversante (8, 9) pour un deuxième agent circulant disposées au-dessus de la surface à action thermique (17) ;
    - un bord de soudure (20) périphérique sans profil ;
    - les ouvertures traversantes (8, 9) étant disposées dans une première et une deuxième section de plaque (12, 12a) et les sections de plaque (12, 12a) étant disposées de façon décalée en diagonale au niveau des côtés avant opposés de la surface à action thermique (17) ; et
    - le bord de soudure (20) sans profil périphérique enserrant en forme de demi-cercle les ouvertures traversantes (8, 9) dans la zone des sections de plaque (12, 12a) et se raccordant avec le même rayon, en forme de quart de cercle, dans la zone de transition (6, 6a) allant de la section de plaque (12, 12a) au côté avant de la surface à action thermique (17) ;
    caractérisée en ce que les ouvertures traversantes (8, 9) sont disposées dans la zone d'écoulement prévue pour un premier agent circulant.
  2. Plaque d'échange de chaleur selon la revendication 1, caractérisée en ce que le profil (18) comporte une structure en arbre traversante réalisée transversalement à la surface à action thermique (17) ou selon un certain angle par rapport à lui.
  3. Plaque d'échange de chaleur selon la revendication 1 ou 2, caractérisée en ce que le profil (18) comporte un profil en arbre de type en arêtes de poisson.
  4. Paire de plaques pour un échangeur à coques compactes entièrement soudé, comprenant deux plaques d'échange de chaleur selon l'une quelconque des revendications 1 à 3, caractérisée en ce que les plaques d'échange de chaleur sont soudées de façon étanche aux gaz à l'intérieur et l'extérieur au niveau de la périphérie des ouvertures traversantes (8, 9).
  5. Paire de plaques selon la revendication 4, caractérisée en ce que les profils (18) des plaques d'échange de chaleur comportent une trajectoire de profil en miroir, de sorte que les profils (18) s'appuient mutuellement sur une pluralité de lieux d'appui en forme de point ou de ligne.
  6. Paquet de plaques pour un échangeur à coques compactes entièrement soudé, comprenant au moins deux paires de plaques empilées selon la revendication 4 ou 5 délimitées des deux côtés par des plaques d'extrémité (41, 41a) sans profil, les paires de plaques étant respectivement soudées de façon étanche aux gaz au bord de soudure (20) sans profil et les plaques d'extrémité (41, 41a) étant respectivement soudées de façon étanche aux gaz à la plaque d'échange de chaleur connexe de la première et de la dernière paire de plaques au niveau du bord de soudure (20) sans profil.
  7. Échangeur à coques compactes entièrement soudé, comprenant :
    - un carter avec une tubulure de raccordement (13, 14) disposée du côté d'enveloppe pour le passage du deuxième agent, avec des tubulures de raccordement (15, 16) disposées dans respectivement une partie avant (24, 24a) sur le côté avant pour le passage d'un premier agent et avec une plaque de carter supérieure (21), une plaque de carter inférieure (22) et des parties latérales (23, 23a), les plaques de carter (21, 22) et les parties latérales (23, 23a) formant une enveloppe de carter ;
    - un paquet de plaques selon la revendication 6 agencé dans le carter, le premier agent s'écoulant entre les plaques connexes de deux paires de plaques et le deuxième agent s'écoulant entre les plaques d'une paire de plaques, le paquet de plaques étant serré avec les plaques de carter (21, 22) et avec les parties latérales (23, 23a) et étant soudées à un carter stable en pression.
  8. Échangeur à coques compactes selon la revendication 7, caractérisé en ce qu'un matériau de remplissage (29) est inséré entre les parties latérales (23, 23a) et le paquet de plaques, ledit matériau étant serré conjointement avec le paquet de plaques, les plaques de carter (21, 22) et les parties latérales (23, 23a).
  9. Échangeur à coques compactes selon la revendication 8, caractérisé en ce que le matériau de remplissage (29) est un treillis métallique ou un ouvrage de fil de fer ou un ouvrage de verre de graphite.
  10. Échangeur à coques compactes selon l'une quelconque des revendications 7 à 9, caractérisé en ce que les plaques d'extrémité (41, 41a) présentent une épaisseur supérieure à l'épaisseur d'une plaque d'échange de chaleur (3), la tubulure de raccordement (15, 16) étant soudée ou reliée aux plaques d'extrémité (41, 41a) au moyen d'un joint.
  11. Échangeur à coques compactes selon l'une quelconque des revendications 7 à 10, caractérisé en ce que plusieurs paquets de plaques sont disposés côte à côte, ces paquets étant respectivement séparés par une paroi de séparation (38a - 38x) reliée en alternance aux parties avant (24, 24a) par formation de zones de débordement et les ouvertures traversantes (8, 9) des paquets de plaques connectés étant court-circuitées par un arc tubulaire (31, 31x).
  12. Échangeur à coques compactes selon la revendication 11, caractérisé en ce qu'au moins deux paquets de plaques sont empilés les uns sur les autres, les paquets de plaques étant décalés de façon régulière dans le plan horizontal les uns par rapport aux autres et séparés par des tôles de séparation (39, 39a), un répartiteur (34) et un collecteur (36) étant soudés de façon étanche aux gaz aux paquets de plaques respectifs et au carter pour le passage du premier agent via les tubulures de raccordement (35, 35a, 35b, 35x) associées.
  13. Échangeur à coques compactes selon l'une quelconque des revendications 7 à 12, caractérisé en ce qu'une stabilité à la pression régulière du paquet de plaques (2) est maintenue sur toute sa longueur au moins par deux renforts (26, 26x) décalés fermant de façon périphérique l'enveloppe de carter du carter (1).
  14. Procédé de fabrication d'un échangeur à coques compactes entièrement soudé, comprenant les étapes suivantes :
    - fabrication d'une paire de plaques par soudure étanche de deux plaques d'échange de chaleur selon l'une quelconque des revendications 1 à 3 au niveau de la périphérie des ouvertures traversantes ;
    - fabrication d'un paquet de plaques par aboutement et soudure de paires de plaques préalablement fabriquées au niveau d'un bord de soudure périphérique sans profil ;
    - agencement d'une première et d'une deuxième plaque d'extrémité au niveau de la première et de la dernière paire de plaques d'un paquet de plaques et soudure au bord de soudure sans profil.
  15. Procédé selon la revendication 14, comprenant en outre les étapes suivantes :
    - agencement du paquet de plaques dans les parties de carter comprenant une plaque de carter supérieure et inférieure (21, 22) ainsi que des parties latérales (23, 23a) et des parties avant (24, 24a) ;
    - serrage du paquet de plaques conjointement avec les parties latérales (23, 23a) et les plaques de carter (21, 22) à une tension de serrage prédéfinie ;
    - soudure des plaques de carter (21, 22) et des parties latérales (23, 23a) pour former une enveloppe de carter stable en pression par maintien de la pression de serrage ;
    - soudure ou fermeture amovible de l'enveloppe de carter aux parties avant (24, 24a) pour former un carter fermé.
EP08011315.2A 2008-06-21 2008-06-21 Plaque d'échange de chaleur, paire de plaques, pile de plaques, échangeur de chaleur à plaques compactes et son procédé de fabriquation Not-in-force EP2136175B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP08011315.2A EP2136175B1 (fr) 2008-06-21 2008-06-21 Plaque d'échange de chaleur, paire de plaques, pile de plaques, échangeur de chaleur à plaques compactes et son procédé de fabriquation

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP08011315.2A EP2136175B1 (fr) 2008-06-21 2008-06-21 Plaque d'échange de chaleur, paire de plaques, pile de plaques, échangeur de chaleur à plaques compactes et son procédé de fabriquation

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EP2136175A1 EP2136175A1 (fr) 2009-12-23
EP2136175B1 true EP2136175B1 (fr) 2016-06-22

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DE102010046864A1 (de) * 2010-09-29 2012-03-29 Gea Ecoflex Gmbh Plattenwärmetauscher mit einem vollverschweißten Plattenpaket
EP2607830B1 (fr) * 2011-12-19 2018-09-12 Senior Uk Limited Échangeurs de chaleur gaz/gaz haute efficacité
FI124763B (fi) * 2013-04-04 2015-01-15 Vahterus Oy Levylämmönsiirrin ja menetelmä useamman vedon tekemiseksi levylämmönsiirtimeen
MX2016016049A (es) * 2014-07-01 2017-02-23 Linde Ag Cambiador de calor de bloque en camisa.
JP2017089918A (ja) * 2015-11-04 2017-05-25 本田技研工業株式会社 熱交換器
JP6911469B2 (ja) * 2017-03-31 2021-07-28 株式会社Ihi 熱処理装置

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CH245491A (de) * 1942-05-22 1946-11-15 Jendrassik Georg Wärmeaustauscher.
US4184542A (en) * 1976-04-16 1980-01-22 Hisaka Works, Ltd. Plate type condenser
NZ294934A (en) 1994-11-11 1998-09-24 Samsung Electronics Co Ltd Vapour compression cycle refrigerator: forced air circulation freezing and refrigerating compartments with serial evaporators
AU1851997A (en) 1996-02-01 1997-08-22 Northern Research & Engineering Corporation Unit construction plate-fin heat exchanger
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DE19846518B4 (de) * 1998-10-09 2007-09-20 Modine Manufacturing Co., Racine Wärmetauscher, insbesondere für Gase und Flüssigkeiten
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US20030024696A1 (en) 2001-08-03 2003-02-06 Ingersoll-Rand Energy Systems Corporation Counterflow plate-fin heat exchanger with extended header fin
DE102004022433B4 (de) * 2004-05-06 2007-01-04 Joachim Schult Profilierte Wärmeübertragungsplatte für einen geschweissten Wärmeüberträger
US20080041556A1 (en) * 2006-08-18 2008-02-21 Modine Manufacutring Company Stacked/bar plate charge air cooler including inlet and outlet tanks
EP1936311B1 (fr) * 2006-12-23 2013-10-02 Joachim Schult Échangeur de chaleur compact à plaques

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