WO2011060936A2 - Échangeur thermique - Google Patents

Échangeur thermique Download PDF

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Publication number
WO2011060936A2
WO2011060936A2 PCT/EP2010/007015 EP2010007015W WO2011060936A2 WO 2011060936 A2 WO2011060936 A2 WO 2011060936A2 EP 2010007015 W EP2010007015 W EP 2010007015W WO 2011060936 A2 WO2011060936 A2 WO 2011060936A2
Authority
WO
WIPO (PCT)
Prior art keywords
heat exchanger
support structure
modules
pipes
tube plate
Prior art date
Application number
PCT/EP2010/007015
Other languages
German (de)
English (en)
Other versions
WO2011060936A3 (fr
Inventor
Hans Fischer
Jürgen Scharfe
Original Assignee
Hans Fischer
Scharfe Juergen
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Hans Fischer, Scharfe Juergen filed Critical Hans Fischer
Publication of WO2011060936A2 publication Critical patent/WO2011060936A2/fr
Publication of WO2011060936A3 publication Critical patent/WO2011060936A3/fr

Links

Classifications

    • 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
    • F28F9/007—Auxiliary supports for elements
    • F28F9/013—Auxiliary supports for elements for tubes or tube-assemblies
    • 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
    • F28D7/00—Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall
    • F28D7/16—Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall the conduits being arranged in parallel spaced relation
    • F28D7/163—Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall the conduits being arranged in parallel spaced relation with conduit assemblies having a particular shape, e.g. square or annular; with assemblies of conduits having different geometrical features; with multiple groups of conduits connected in series or parallel and arranged inside common casing
    • F28D7/1653—Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall the conduits being arranged in parallel spaced relation with conduit assemblies having a particular shape, e.g. square or annular; with assemblies of conduits having different geometrical features; with multiple groups of conduits connected in series or parallel and arranged inside common casing the conduit assemblies having a square or rectangular shape
    • 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
    • F28F9/02—Header boxes; End plates
    • F28F9/04—Arrangements for sealing elements into header boxes or end plates
    • F28F9/06—Arrangements for sealing elements into header boxes or end plates by dismountable joints
    • F28F9/14—Arrangements for sealing elements into header boxes or end plates by dismountable joints by force-joining
    • 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
    • F28F2275/20—Fastening; Joining with threaded elements
    • F28F2275/205—Fastening; Joining with threaded elements with of tie-rods

Definitions

  • the invention relates to a heat exchanger with a plurality of pipes as a heat transfer surface, wherein at least one side of the heat exchanger at least one hood is attachable.
  • Heat exchangers of the aforementioned type are known in a variety of variants from the prior art and are used for various applications everywhere where an exchange of heat energy between two substances and in particular between two streams is to take place.
  • the invention is based on a heat exchanger comprising a plurality of pipelines and at least one tube plate.
  • the pipelines are each summarized or connected in their end region with the tube plate.
  • the pipes are welded to the tube plate or rolled into holes in the tube plate. The rolling is particularly advantageous if the pipes are made of materials with high ductility.
  • a hood can be connected, which serves to supply and discharge of the guided in the pipes medium by the hood has an internal volume, which communicates with all internal volumes of the pipes. From the hood or in the hood, the medium passes through a nozzle connected to the hood, which is connected, for example, to a condensate line o. ⁇ .
  • Such a heat exchanger has the disadvantage that the hydrostatic and hydrodynamic forces and in particular the stresses arising from these forces in the heat exchanger act directly on the tube plate and on the tube plate attached to the tube plate by the hood. This has the consequence that these forces are transmitted directly from the tube plate to the pipeline and set in operation a certain state of stress within the pipe of the heat exchanger.
  • the pipelines must therefore be designed so stable that they can carry the resulting enormous tensile forces as well as the compressive forces.
  • the present invention has the object, a heat exchanger
  • CONFIRMATION COPY which is compact and saves material while providing a large heat transfer area.
  • the heat exchanger at least two heat exchanger modules and at least one support structure are included, that the heat exchanger modules each comprise pipes and at least one tube plate, wherein the pipes are connected in their end regions via the tube plate, that the Heat exchanger modules are fastened to the tube plates in the support structure such that the inner volume of the hood is connectable to the pipe interior and the inner volume of the hood is sealed against the pipe outside, and that the support structure surrounds the heat exchanger modules such that a portion of the forces removed from the support structure becomes.
  • the "inner volume of the hood” is meant the volume enclosed by the hood in which the medium exiting the pipelines or entering the pipelines is collected.
  • heat exchangers is based on the concept that the heat-transmitting components - the pipes - also represent the force-transmitting components simultaneously.
  • the heat exchanger according to the invention is based on the idea of separating the heat-transmitting components or the heat-transferring system from the force-transmitting components or relieving the heat-transferring components decisively of the structural tasks. As a result, the heat-transferring components could be designed almost exclusively to transfer heat optimally, while the force-transmitting components can be designed to optimally remove the forces generated in the system.
  • the piping of the heat exchanger modules are relieved of the power transmission, so that a displacement of the forces to be transmitted from the piping to the support structure.
  • the heat exchanger modules can not be completely freed from any transmission of force, however, with a construction according to the invention a significant relief of the heat exchanger modules is to be achieved. follow, so that the heat exchanger modules in general, but in particular the pipes must be made less massive.
  • the heat exchanger modules, as heat-transmitting components, in this case consist of a specific plurality of pipelines, which are connected to each other with at least one tube plate in their end regions and combined to form a tube bundle.
  • the modular design of the heat exchanger according to the invention allows, by a prefabrication organized as mass production, the transfer of critical, complex and safety-relevant work steps from the construction site into a controlled environment of mass production. This makes it possible to apply for the production of all components of the heat exchanger, but in particular the heat exchanger modules and the support structure, working and manufacturing processes that would not be applicable in a different manufacturing environment. Furthermore, serial production makes it possible to manufacture the heat exchanger modules and also the support structure with a very high degree of precision, in particular with regard to the dimensions and fits.
  • the heat exchanger modules are surrounded in the assembled state of the heat exchanger of the support structure, so that the outlet or inlet cross sections of the pipes with the inner volume of at least one hood can be connected, wherein the guided in the pipes or in the inner volume of the hood against the medium flowing around the pipes Medium is sealed.
  • the forces resulting from the pressure or the flowing medium in the heat exchanger are thereby removed by the supporting structure surrounding the heat exchanger modules, so that the pipelines are essentially relieved of the force transmission.
  • This relief of the piping and tube plates of the power transmission causes the pipes and the tube plates can be constructed from a much thinner material, resulting in a considerable material savings and an optimized heat transfer.
  • the piping, the tube plates and the support structure are preferably made of a stainless steel or a stainless steel.
  • the pipelines are additionally relieved by arranging the support structure between the heat exchanger modules in such a way that forces occurring on the connection surface of the heat exchanger formed from a plurality of tube plates and the supporting structure are removed uniformly over the connection surface, in particular be removed from the support structure.
  • This does not mean that the force is removed as surface load, but rather that the removal points for the effective force are discrete, but evenly distributed over the total effective area - the tube plate - are.
  • the support structure forms a uniform Gittertial. Grid structure which divides the connection surface for the connection of the hood in uniform fields with a small area, wherein at least at the crossing points of the support structure, the forces are removed in the axial longitudinal direction of the heat exchanger.
  • the size of a field essentially corresponds to the size of a tube plate.
  • the lattice-like structure of the support structure ensures a simple connection of the outer pipe spaces of the individual heat exchanger modules, to a global pipe outside space.
  • the heat exchanger modules are used for this purpose in the three-dimensional support structure, so that the heat exchanger module and in particular the tube plate are uniformly surrounded by the support structure.
  • the hood is preferably fastened to the support structure, it being provided that the connection between the support structure and the tube plate is sealing, so that the inner volume of the hood is sealed against the tube outer space surrounding the pipes.
  • the hood in the assembled state in particular cover at least partially located in the edge region of the connection surface tube plates.
  • connection surface By dividing the connection surface into a plurality of fields, each with a tube plate of small size, wherein the support structure supports the entire connection surface uniformly, the size of the connection surface can be arbitrarily extended without any instabilities of the connection surface, the pipes are additionally burdened.
  • the only component that may limit the size of the connection surface is the hood, whose stability - especially with internal or external overpressure - can always be guaranteed.
  • An advantageous embodiment of the heat exchanger provides that the heat exchanger modules each have at least two tube plates which connect the pipes in their end regions with each other, wherein preferably the pipes are straight, so that a hood can be attached to both connection sides of the heat exchanger.
  • the heat exchanger has in its longitudinal extent at both ends in each case a tube plate which connect the pipes together, so that from the unit of tube plates and pipes, a symmetrical heat exchanger module is formed.
  • the pipes are straight, so that at both ends of the heat exchanger in its axial longitudinal extent - at the end faces - each formed by the tube plate, a segment of a pad, wherein at one end of the medium inlet and at the other end of the Medium outlet is located.
  • the pipelines preferably terminate flush with the tube plate, so that the tube plate represents the interface of the heat exchanger modules to the support structure and to the internal volume of the hood.
  • the tubesheets preferably terminate flush with the support structure at both ends and are sealingly connected thereto. Due to the arrangement of a hood on both sides of the heat exchanger, forces arising within the support structure are partly compensated.
  • the heat exchanger modules are preferably arranged horizontally and parallel to each other in the support structure and are supported by the latter - in the vertical direction. In addition to this support function of the support structure, forces occurring and removed by the support structure in addition in the longitudinal direction of the pipes in the axial longitudinal direction of the heat exchanger are absorbed and removed, so that the pipelines are relieved of forces.
  • connection between the support structure and the tube plate is designed to be sealing, so that the connection surfaces are dense overall and can be surmounted by a hood and sealed circumferentially, thereby ensuring that the inner tube volumes the inner volumes of the hoods are sealed against the outside pipe space, especially if there is a different pressure within the piping and in the inner volumes of the hoods than in the pipe space surrounding the pipelines.
  • the medium which has passed through the hood to the heat exchanger at one end of the heat exchanger consequently enters the interior of the pipes via the connection surface through the pipe openings in the pipe plate, flows through the pipes to the other connection side and emerges from the pipes at the connection surface the internal volume of the hood attached there. From there, the medium is continued through the nozzle from the hood. Because of the plurality of sealing connections, the medium thus guided never comes into contact with the medium conducted on the outer side of the tube.
  • the support structure is formed such that a plurality of heat exchanger modules are arranged one above the other and / or side by side in parallel.
  • the connection surface is subdivided into a plurality of cells or surfaces which are surrounded by the support structure.
  • the number of heat exchanger modules can be arbitrarily extended and adjusted.
  • the pad can be extended by the stacking and / or juxtaposing of heat exchanger modules to any size, not only the heat exchanger surface can be arbitrarily increased, but even with a constant heat exchanger surface - compared to a conventionally constructed heat exchanger - the length of Heat exchanger modules, in particular the piping, be shortened, so that a total of a more compact design is possible.
  • planar structural elements can be fastened to the supporting structure and form an outer housing of the heat exchanger in the mounted state.
  • planar components - in particular plates or sheets - fixed so that the sheet-like elements extend in a membrane over the support structure and limit the outer pipe space.
  • the outer casing would be compressed if insufficiently supported, if the thickness of the material is insufficient. Due to the support structure, the outer housing is supported for both internal and external overpressure.
  • the support structure of the heat exchanger can be configured in different ways. According to a preferred embodiment, it is provided that the support structure consists of a frame, wherein the frame of a plurality of spatially arranged cuboids forms, in particular the frame is formed from transversely and longitudinally to the heat exchanger modules arranged profiles, the profiles each at their ends can be connected to each other, preferably positive, non-positive or cohesive.
  • the support structure consists of a frame which is formed essentially of blocks.
  • the cuboids are created by arranging and connecting the profiles longitudinally and transversely to the heat exchanger modules or the pipelines.
  • the profiles can be the same or different and can be modular to any number of side by side, one behind the other and superimposed cubes composed.
  • the profiles are arranged transversely and longitudinally to the heat exchanger modules, so that the profiles when inserting the heat exchanger module into the frame does not hinder the insertion.
  • the intermediate profiles are arranged such that at least under each tube plate a supporting, transversely arranged intermediate profile is provided.
  • An inserted heat exchanger module preferably passes through a plurality of blocks arranged one behind the other, which form the support structure.
  • the support structure can also be formed from longitudinal profiles whose length substantially corresponds to the length of the heat exchanger modules.
  • longitudinal profiles horizontally and vertically extending intermediate profiles are arranged, which fasten the longitudinal profiles spaced from each other and absorb forces transverse to the longitudinal extent of the heat exchanger modules.
  • the axial forces in the direction of the longitudinal extent of the heat exchanger modules are supported by the longitudinal profiles.
  • the bonding of the preferably prefabricated profiles with each other is positively, for example in the form of a simple plug-in mechanism, non-positively, for example by the profiles are screwed or clamped or cohesively by the profiles are welded together at their ends. Due to the construction of profiles, the size of the frame - the supporting structure - can be expanded and adapted as required depending on the application. Any profile shape can be used for the profiles, in particular open, closed, semi-open, flat profiles or angle profiles.
  • connecting elements are used, which connect the individual profiles together, while different connecting elements for the corner areas, the intermediate areas and the longitudinal areas are provided, for example, connecting elements for two, three, four or six profiles.
  • the profiles can also be welded or otherwise connected to the connecting elements.
  • a further advantageous embodiment of the support structure provides that the profiles are configured as hollow profiles, so that in the mounted state, the interior of the frame forms a relative to the heat exchanger completed system.
  • the hollow sections are for this purpose connected to each other - if necessary, via connecting elements - that in their interior a closed and continuous system is created. If pipes are used as hollow sections, then a piping system is formed by the frame, which is completed by the media present in the heat exchanger and, if necessary, only accessible from outside the heat exchanger.
  • the connecting elements are each designed so that they allow a connection between the individual hollow profiles; the connection between the hollow profiles and the connecting elements is sealing if possible.
  • traction means are guided within the hollow sections of the frame, with the traction means tensile forces within the support structure are transferable, especially if the profiles are only mated and therefore only bear compressive forces.
  • pulling means for example, traction cables are provided within the hollow profiles, which are connected to the outer housing of the heat exchanger or other components of the heat exchanger, so that in addition to the transferable via the profiles compressive forces also tensile forces are transmitted in the heat exchanger.
  • the hollow profiles also transmit tensile forces, but only if they are connected to each other in a suitable manner.
  • a traction means can also be used bar material.
  • the traction means can also be made of a non-corrosion-resistant material, as they are protected by the frame from damaging influence. As a result, the costs for the production of the heat exchanger can be further reduced.
  • An alternative embodiment of the support structure provides that the support structure comprises flat housing modules and cross connectors, wherein the respective housing modules with the cross connectors are connectable to each other, in particular the cross connector support the housing modules as an inner frame.
  • the housing modules are preferably configured as plates, which are interconnected with the cross connectors.
  • the cross connectors have in particular a length corresponding to the width of a heat exchanger module, so that in the assembled state between two housing modules, a plurality of heat exchangers can be introduced one above the other.
  • the heat exchanger modules are preferably also on the connecting the housing modules cross connectors.
  • the outer housing modules form the outer housing of the heat exchanger.
  • the arranged between the heat exchanger modules, internal housing modules may additionally have regular recesses that connect the pipe outer spaces of the juxtaposed heat exchanger modules together and ensure a uniform distribution of run in the pipe exterior medium.
  • an inner framework of cross connectors which are preferably positive, cohesive or materially connected to the housing modules, so that both outer and inner overpressures can be supported by this support structure.
  • the heat transfer modules are stored even more advantageously within the support structure when the housing modules have formations, wherein the formations for interaction with the cross connectors and for horizontal guidance of the heat exchanger modules are used.
  • the formations are preferably formed as horizontally extending creases or beads within the housing modules, so that the formations form horizontally extending, mutually parallel guide rails, on which the cross-connector and also the heat exchanger modules can rest.
  • the heat exchanger can thus be performed on the horizontal formations, be inserted horizontally within the housing modules in the support structure, wherein the heat exchanger modules are supported simultaneously on the formations and through the cross connector.
  • both the cross connectors and the housing modules are supported by the heat exchangers in such a way that kinking of the cross connectors or housing modules becomes impossible with an external overpressure on the heat exchanger is because they are supported from all sides by a heat exchanger module, in particular of its tube plates.
  • the support structure surrounds the heat exchanger modules such that with the exception of the hydrodynamic and hydrostatic forces on the tube plate, the forces of the Support structure to be removed.
  • the heat exchanger modules are sealingly connected to the support structure, however, no appreciable forces may be transmitted through the seal, so that the forces are essentially removed from the support structure. Only the forces acting on the tube plate present between the end faces of the pipelines are transmitted via the heat exchanger module, i. H. in the axial direction over the pipes, removed; the seal between support structure and heat transfer module transmits substantially no forces.
  • the heat exchanger modules are preferably mounted to float within the support structure, the hood being fastened exclusively to the support structure.
  • the sealing of the floating bearing can be done, for example, via a sealing lip surrounding the tube plate, which follows the movement of the heat exchanger module within the support structure.
  • a further embodiment provides that the heat transfer module with the tube plate is movably mounted in the support structure.
  • a movable attachment is configured such that the heat exchanger modules are supported and supported in the vertical direction by the support structure, but remain substantially movable in their axial direction.
  • the seal between the support structure and tube plate for example, via a zigzag seal, the accordion-like makes the seal and follows the movement. As forces on the heat exchanger module remain essentially only the hydrostatic forces on the tube plate.
  • Another advantageous sealing means between support structure and tube plate which also allows only a small power transmission, provides that the heat exchanger modules are welded with a membrane seal with the support structure.
  • the heat transfer modules lie horizontally within the support structure, so that only a purely axial movement of the heat exchanger modules is possible.
  • a metal strip covering the gap between the heat transfer module and the support structure is welded to both the heat transfer module and the support structure, so that a sealing connection is produced.
  • the heat exchanger module remains to some extent within the support structure movable - at least in the context of elastic deformability of the metal strip - while ensuring that all notable forces are removed through the support structure.
  • the metal strip is advantageously made of a material that has a high elastic deformability.
  • an elastic seal is disposed between the tube plates of the heat exchanger modules and the support structure.
  • the seals may be, for example, rubber seals, which are configured as 0-rings.
  • the heat transfer module is fastened in the support structure with seals interposed on both sides such that the heat transfer module retains a small amount of residual mobility in the axial direction, in particular within the framework of the elastic deformability of the seals. This also ensures that the essential force transmission takes place within the heat exchanger, in particular in the axial direction, via the supporting structure. In this case, only the sealing force and the hydrodynamic force necessary for the seal act on the tube plate on the heat exchanger modules - and thus on the pipelines.
  • the support structure is designed so stable that almost no more forces must be transmitted from the pipes, it is provided that the heat exchanger modules are welded to the support structure.
  • the welding of the tube plate of the heat exchanger module with the Although support structure connects them directly, so that forces can be transferred from the support structure to the heat exchanger module, however, is prevented by the very stable structure of the support structure that the pipes are excessively loaded, thereby reducing the diameter and the wall thickness of the pipes continue is possible.
  • At least one support plate connecting the pipes is arranged in the longitudinal direction of the pipes of the heat exchanger modules, in particular the support plate is supported on the support structure.
  • One or a plurality of support plates within the heat transfer modules reliably prevents the pipes from vibrating and, in addition, serves to support the heat transfer module at other locations above the support plates on the support structure.
  • the support plates are attached thereto at regular or preferably at irregular intervals on the pipes of the heat exchanger modules and preferably have the distances corresponding to the lattice spacings of the support structure, so that a reliable support on the support structure is possible.
  • the support plates are preferably each based on a cross connector from or supports a cross connector on the support plate.
  • connection between the tube plate and the pipes must be a sealing connection, which is why it is preferably realized that a sealing material is provided between the tube plate and the pipes, in particular the pipe and / or the tube plate made of stainless steel or stainless steel.
  • a sealing material is provided between the tube plate and the pipes, in particular the pipe and / or the tube plate made of stainless steel or stainless steel.
  • an elastic sealing material is preferably introduced for this, wherein the pipes are inserted into the bores provided with the sealing material and non-positively connected by plastic deformation with the holes and / or positively.
  • the sealing material is particularly advantageous when the pipes are made of a stainless steel or a stainless steel, since these steels can be plastically deformed only to a small extent or can not be molded plastically to the extent. sen or nestle, in which this molding with softer materials is possible.
  • the material of the pipe does not have to conform exactly to the hole in the tube plate, but after the deformation of the pipe remaining unevenness are reliably compensated by the sealing material, so that a sealing connection between the tube plate and pipe ,
  • This compound has the advantage that arise in the material no stresses, for example by heat and the - preferably thin-walled - materials do not warp.
  • a particularly simple and reliable method to produce a sealing connection between pipes and tube plate is provided according to an advantageous embodiment of the invention, namely the fact that the pipes are materially connected to the tube plate, in particular welded.
  • the pipes are to, preferably by laser welding, welded into the bore within the tube plate, so that a cohesive connection between the pipe and pipe plate is formed, which is reliable sealing.
  • a further teaching of the invention relates to a method for producing a heat exchanger module, which is characterized in that first the tube plate is provided with holes corresponding to the number of tubes, then the inner surfaces of the holes are provided with a layer of an elastic material, so that the Holes are coated with a sealing layer, and finally the ends of the pipe are fixed by a plastic deformation of the pipe to the tube plate.
  • This method has the particular advantage that stresses within the material due to heat effects are avoided, since only a plastic deformation of the pipes takes place, for example by rolling.
  • the sealing material fulfills its advantageous effect, in particular when using stainless steel or a stainless steel as a material for the tube plate or pipes, since these steels are plastically deformable only with increased effort and in particular bad on a surface - here the hole - nestle, which is why a rolling in of a pipeline made of stainless steel in a bore - without the use of a sealing material - meant a very high cost for the production of the bore and rolling in.
  • the sealing material between the pipe and the bore compensates for the lack of adaptability of the pipe material, so that in a simple manner a reliable sealing connection is made.
  • FIG. 1 shows an embodiment of a support structure of a heat exchanger according to the invention in a perspective view
  • FIG. 2 shows an embodiment of a heat exchanger module of a heat exchanger according to the invention in a perspective view
  • Fig. 3 shows the embodiment of a heat exchanger module according to
  • FIG. 4 shows a support structure according to FIG. 1 equipped with heat exchanger modules according to FIG. 2 in a perspective view, FIG.
  • Fig. 5 shows an embodiment of a heat exchanger according to the invention in an exploded view
  • Fig. 6 shows the embodiment of a heat exchanger according to the invention according to FIG. 5 in the assembled state in a perspective view.
  • the heat exchanger 1 comprises a plurality of heat exchanger modules 5, which are introduced into a support structure 6; the support structure 6 is shown separately in Fig. 1.
  • the heat exchanger modules 5 each comprise a certain number of pipes 2, which are connected to each other in their end regions with a tube plate 7, so that the pipes 2 terminate flush with the tube plate 7.
  • connection surface 8 on each connection side 3 of the heat exchanger 1, the connection surface 8 being completely covered, in particular in the assembled state, by a hood 4 (shown in FIG. 5), so that the Inner volumes of the pipes 2 with the inner volume of the hood 4 are in communication.
  • a medium to be led in the pipelines 2 can thus be introduced via the hood 4 into the pipelines 2 or led out of the pipelines 2.
  • the longitudinal profiles 10 are arranged parallel to the heat exchanger modules 5 and carry in the mounted state essentially the axial forces occurring in the longitudinal direction of the heat exchanger modules 5.
  • the intermediate profiles 10 are arranged transversely to the heat exchanger modules 5 and each extend horizontally and vertically and connect the individual longitudinal profiles 9 together , so that a support structure 6 is formed, in which a plurality of heat exchanger modules 5 can be introduced.
  • the support structure 6 offers space for in each case three heat exchanger modules 5 next to one another and a maximum of six heat exchanger modules 5 one above the other.
  • Both the longitudinal profiles 9, as well as the intermediate profiles 10 are configured in this embodiment example as hollow profiles, so that, for example, within the longitudinal profile 9 and the intermediate profiles 10 a - not shown - traction means, for. B. a pull rope, can be performed, in addition to the support structure 6 from longitudinal profiles 9 and intermediate profiles 10 can transmit tensile forces.
  • the traction means is attached to the corresponding components, eg the outer casing, of the heat exchanger.
  • FIG. 2 shows an exemplary embodiment of a heat exchanger module 5 for a heat exchanger 1 according to the invention in a perspective view.
  • a tube plate 7 is arranged, which has a number of through holes 1 1, which corresponds to the number of pipes 2; in this exemplary embodiment, there are 315 pipelines.
  • the length of the heat exchanger module 5 corresponds substantially to the length of the support structure 6 shown in FIG. 1.
  • the pipelines 2 are fastened in the through holes 1 1 in the tube plates 7 such that the ends of the tubes 2 are flush with the respective tube plate 7 to lock.
  • the connection between the pipes 2 and the tube plates 7 is sealing, in this case a laser welding connection.
  • FIG. 3 shows the exemplary embodiment of a heat exchanger module according to FIG. 2 in a perspective detail view.
  • the pipes 2 are welded in this embodiment in the through holes 1 1 of the tube plate 7 and so firmly bonded thereto.
  • the through holes 11 are regularly distributed over the tube plates 7, so that the webs between the through holes 11 ensure a sufficient stability of the tube plates 7.
  • the material of the tube plates 7 is preferably the same material as that of the tubes 2, ideally using a stainless steel or a stainless steel. Since stainless steels and stainless steels generally have a high strength, so very small wall thickness, both for the pipes 2, as well as for the tube plates 7 can be realized.
  • the wall thickness of the tube plates 7 can be realized in a range of about 5 mm to 8 mm, while the wall thickness of the pipes can be reduced to a range of 0, 1 mm to 0.2 mm.
  • the approximately completely assembled heat exchanger 1 shown in FIG. 4 shows eleven heat exchanger modules 5, which are introduced into the 18 possible slots of the support structure 6.
  • the heat exchanger modules 5 are not sealingly connected in the illustrated state with the support structure 6,
  • a mask 12 shown in FIG. 5
  • the support structure 6 can also be configured in such a way that such an additional mask 12 can be dispensed with.
  • connection surface 8 of the heat exchanger 1 is subdivided into a plurality of fields whose size substantially corresponds to the size of the tube plates 7 with the support structure 6 arranged therebetween.
  • connection surface 8 of the heat exchanger 1 can be increased as desired without resulting in losses with regard to the stability of the connection surface 8.
  • the forces occurring in the axial direction of the heat exchanger modules 5 are reliably removed from the longitudinal profiles 9 of the support structure 6.
  • the heat exchanger modules 5 are mounted movably in the axial direction in the support structure 6.
  • Fig. 5 is an exploded perspective view of an embodiment of a heat exchanger 1 is shown, in which the support structure 6 consists of flat housing modules 13, 13 cross-connectors 14 are arranged between the housing modules, which define the distance between the housing modules 13 and the entire support structure 6 a give sufficient stability.
  • the length of the cross connector 14 substantially corresponds to the width of the heat exchanger modules 5, so that the heat exchanger modules 5 can be introduced into the shafts defined by the transverse connectors 14 between two housing modules 13 and can be fastened therein.
  • the support structure 6 On the formations 15 are preferably also the cross connector 14, which are positively connected to the housing modules 13 in this embodiment, so that the support structure 6 withstands both external and internal overpressure, since the connection between the housing modules 13 and cross connectors 14 both tensile as can also transmit compressive forces.
  • the support structure 6 At the connection sides 3 of the heat exchanger 1, the support structure 6 each have a mask 12, which is sealingly connectable to the housing modules 13.
  • the mask 12 has recesses for the tube plates 7 of the heat exchanger modules 5, so that a sealing connection between the tube plates 7 and the masks 12, so the support structure 6, can be produced.
  • the plurality of tube plates 7 of the heat exchanger 5 together form a connection surface 8, which is overlapped by a hood 4, so that the guided in the pipes 2 medium collected by the hood 4 and connected via a connected to the hood 4 - not shown - nozzle can be (Fig.5).
  • the - according to FIG. 5 - the outer housing of the heat exchanger 1 forming housing modules 13 have, of course, a closed surface, while arranged between the individual juxtaposed heat exchanger modules 5 housing modules 13 recesses 16 which establish a connection between the individual pipe outer spaces of the various heat exchanger modules 5 , so that a uniform admission of all pipes 2 all heat exchanger modules 5 is ensured in a heat exchanger 1.
  • a buckling of the cross connector 14 or intermediate webs 17 between the recesses 16 in the housing modules 13 are reliably prevented by a support to the heat exchanger modules 5 takes place.
  • the support is arranged on the in the longitudinal extent of the heat exchanger modules 5 between the two tube plates 7 arranged, the pipes 2 connecting support plates 18 which are arranged at regular intervals and prevent vibration of the heat exchanger modules.
  • the support plates 18 are supported both on the support structure 6, but support this while also simultaneously, so that a total of a very stable heat exchanger 1 is formed.
  • FIG. 6 shows the exemplary embodiment of the heat exchanger 1 already shown in FIG. 5 in the assembled state, whereby here too only eleven of eighteen possible heat exchanger modules 5 are introduced into the support structure 6 of the heat exchanger 1. The remaining places remain empty in this embodiment and are covered by the mask 12.
  • the heat exchanger 5 together form the connection surface 8 of the heat exchanger 1, which is overlapped by a - shown in Fig. 5 - 4 hood.
  • the modular design of the heat exchanger 1 allows a very compact heat exchanger 1, which has a very large heat transfer surface at the same time compact dimensions by an enlargement of the pad 8 can be done by the invention essential separation of the supporting components of the heat-transmitting components.
  • the length of the heat exchanger modules 5 can be reduced, so that a very compact heat exchanger 1 is formed, which is composed of a plurality of components with low wall thickness, so that a total of a significant part of the weight is saved.
  • the supporting and supporting function assume in this invention not the pipes 2, but the support structure. 6

Landscapes

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

Abstract

L'invention concerne un échangeur thermique (1) comportant une pluralité de conduites tubulaires (2) servant de surfaces d'échange de chaleur, au moins un couvercle (4) pouvant être posé sur au moins une face de raccordement (3) de l'échangeur thermique (1). L'invention vise à réaliser un échangeur thermique compact, de conception économe en matériau, qui offre simultanément une grande surface d'échange de chaleur. A cet effet, ledit échangeur comporte au moins deux modules d'échange thermique (5) et au moins une structure porteuse (6), les modules d'échange thermique (5) comprennent chacun des conduites tubulaires (2) et au moins une plaque tubulaire (7), les conduites tubulaires (2) sont reliées ensemble à leurs extrémités par l'intermédiaire de la plaque tubulaire (7), les modules d'échange thermique (5) avec les plaques tubulaires (7) peuvent être fixés dans la structure porteuse (6) de manière à ce que le volume intérieur du couvercle (4) puisse être relié au volume intérieur tubulaire et soit rendu étanche envers le volume extérieur tubulaire, la structure porteuse (6) entoure les modules d'échange thermique (5) de sorte qu'une partie des forces soit supportée par la structure porteuse (6).
PCT/EP2010/007015 2009-11-18 2010-11-18 Échangeur thermique WO2011060936A2 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102009053554.3 2009-11-18
DE200910053554 DE102009053554A1 (de) 2009-11-18 2009-11-18 Wärmeübertrager

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Publication Number Publication Date
WO2011060936A2 true WO2011060936A2 (fr) 2011-05-26
WO2011060936A3 WO2011060936A3 (fr) 2011-12-29

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10465902B2 (en) 2015-11-18 2019-11-05 Bosal Emission Control Systems Nv Combined evaporator and mixer

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GB472822A (en) * 1936-03-02 1937-09-27 Charles Harold Leach Improvements in and relating to heat exchangers or condensers for oil refining apparatus
GB671375A (en) * 1949-03-10 1952-05-07 Parsons C A & Co Ltd Improvements in or relating to contra-flow heat exchangers
DE7008998U (de) * 1970-03-11 1976-02-26 Anger Kunststoff Waermeaustauscher, insbesondere heizkoerper.
DE2713010A1 (de) * 1977-03-24 1978-09-28 Maschf Augsburg Nuernberg Ag Waermetauscher
US4253516A (en) * 1978-06-22 1981-03-03 Westinghouse Electric Corp. Modular heat exchanger
JPS6036887A (ja) * 1983-08-10 1985-02-26 Mitsubishi Heavy Ind Ltd 凝縮器
US4685511A (en) * 1985-10-08 1987-08-11 Westinghouse Electric Corp. Tube support for moisture separator reheater
FR2923593B1 (fr) * 2007-11-09 2015-12-11 Valeo Systemes Thermiques Echangeur de chaleur a etancheite amelioree, notamment pour un circuit de refroidissement de vehicule automobile
EP2085732B1 (fr) * 2008-02-04 2014-04-09 ATEC GmbH & Co. KG Echangeur thermique en verre avec plaque tubulaire en plastique

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10465902B2 (en) 2015-11-18 2019-11-05 Bosal Emission Control Systems Nv Combined evaporator and mixer

Also Published As

Publication number Publication date
WO2011060936A3 (fr) 2011-12-29
DE102009053554A1 (de) 2011-06-30

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