EP2406572A2 - Echangeur de chaleur à plaque et procédé pour améliorer la résistance à la pression d'un échangeur de chaleur à plaque - Google Patents

Echangeur de chaleur à plaque et procédé pour améliorer la résistance à la pression d'un échangeur de chaleur à plaque

Info

Publication number
EP2406572A2
EP2406572A2 EP10716371A EP10716371A EP2406572A2 EP 2406572 A2 EP2406572 A2 EP 2406572A2 EP 10716371 A EP10716371 A EP 10716371A EP 10716371 A EP10716371 A EP 10716371A EP 2406572 A2 EP2406572 A2 EP 2406572A2
Authority
EP
European Patent Office
Prior art keywords
plate
heat exchange
plates
stack
heat exchanger
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP10716371A
Other languages
German (de)
English (en)
Inventor
Mauri Kontu
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of EP2406572A2 publication Critical patent/EP2406572A2/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
    • F28D9/00—Heat-exchange apparatus having stationary plate-like or laminated conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall
    • 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
    • F28D9/0012—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 apparatus having an annular form
    • 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
    • F28D9/0037—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 conduits for the other heat-exchange medium also being formed by paired plates touching each other
    • 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
    • F28F13/00—Arrangements for modifying heat-transfer, e.g. increasing, decreasing
    • 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
    • F28F3/00—Plate-like or laminated elements; Assemblies of plate-like or laminated elements
    • F28F3/08—Elements constructed for building-up into stacks, e.g. capable of being taken apart for cleaning
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F13/00—Arrangements for modifying heat-transfer, e.g. increasing, decreasing
    • F28F2013/005—Thermal joints
    • F28F2013/006—Heat conductive materials
    • 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
    • F28F2225/04—Reinforcing means for conduits

Definitions

  • the object of the invention is a plate heat exchanger and a method for improving the pressure resistance of a plate heat exchanger according to the preambles of the independent claims presented below.
  • Heat exchangers with plate structures have already been manufactured for a long time.
  • the heat exchange plates have typically been very thin, having, for example, a thickness of 0.4-1 mm. If it is desirable to operate the heat exchanger in a pressurized state, the heat exchange plates should be made thicker and of a stronger plate material. This naturally makes the manufacture of a pressurized heat exchanger difficult and special devices are needed for the job, whereby the costs rise so much that the manufacture is not reasonable when it comes to the overall economy.
  • Plate heat exchangers are also known, wherein a double plate structure has been used in the heat exchange plates, i.e. two plate elements arranged on top of each other have formed a heat exchange plate. With the double plate structure it has been attempted to prevent the unwanted mixing of heat exchange fluids in a case where a hole is formed in the heat exchange plate for example due to corrosion. A so-called tell-tale hole has also often been used in these structures, which hole leads the heat exchange medium out of the heat exchanger and thus reveals the ending up of heat exchange medium between the double plates. Double plate structures have also been used for improving general corrosion resistance.
  • Publication US 5,291,945 presents a heat exchanger assembled from of rectangular heat exchange plates with four holes, which heat exchanger has a double plate structure and which is assembled partly by soldering. There is a flow space between the plate elements of the heat exchange plates, which space makes possible the transfer of heat exchange fluid leaking from a hole, which has possibly formed in one of the plate elements, between the elements to the edge of the heat exchange plate.
  • Publication DE 44 16 391 shows a double plate structure, where the plate elements are partly on top of each other.
  • the structure is made leak-proof by modifying the th ickn ess of th e seal .
  • Another object of the present invention is to provide a plate heat exchanger, the manufacturing of which is inexpensive and easy.
  • a typical plate heat exchanger comprises a stack of plates made up of a number of heat exchange plates, where the heat exchange plates are attached to each other in pairs as plate pairs, and a shell surrounding the stack of plates, whereby
  • the inlet and outlet connection for the first heat exchange medium has been arranged in connection with the inner parts of the stack of plates.
  • the inlet and outlet connection for the second heat exchange medium has been arranged in connection with the inner side of the shell, i.e. with the outer side of the stack of plates,
  • openings have been arranged in the heat exchange plates, which openings have been arranged to face each other in adjacent plates so that they form the inlet and outlet channel inside the stack of plates for the first heat exchange medium, wherein at least a part, preferably all, of the heat exchange plates are formed out of two or more plate elements arranged in close contact on top of each other, which plate elements are attached to each other at least at the perimeters of the openings of the plate elements.
  • a typical method according to the invention for improving the pressure resistance of a plate heat exchanger comprises
  • each heat exchange plate has openings, to each other in pairs as plate pairs,
  • the invention is suited for use especially in plate heat exchangers, which are assembled from circular heat exchange plates by welding.
  • the plate heat exchanger especially refers to a plate heat exchanger according to the so-called Plate & Shell TM technology developed by the applicant, which plate heat exchanger comprises a stack of plates made up of heat exchange plates and a shell surrounding it.
  • the stack of plates is made up of several plate pairs.
  • Each plate pair is made up of two circular heat exchange plates, which are welded together at least at their perimeter.
  • Each heat exchange plate has at least two first openings for the flow of the first heat exchange medium. Adjacent plate pairs are fastened together by welding or by otherwise combining the first openings of two adjacent plate pairs to each other.
  • first heat exchange medium can flow from a plate pair to another via the first openings.
  • the second heat exchange medium is arranged to flow inside the shell in the spaces between the plate pairs.
  • the stack of plates of the heat exchanger is thus placed in a shell with high-pressure resistance, between ends supporting the stack.
  • Inlet and outlet connections for the first as well as for the second heat exchange medium have been arranged through the shell of the Plate & Shell TM plate heat exchanger.
  • the inlet and outlet connection of the first heat exchange medium has been arranged in connection with the inner parts of the stack of plates, i.e. with the inner parts of the plate pairs.
  • the primary circuit of the plate heat exchanger is thus formed between the inlet and outlet connection of the first heat exchange medium, inside the plate pairs.
  • the inlet and outlet connection of the second heat exchange medium has been arranged in connection with the inner side of the shell, i.e. with the outer side of the stack of plates, i.e. with the outer sides of the plate pairs.
  • the secondary circuit of the plate heat exchanger is formed between the inlet and outlet connection of the second heat exchange medium, inside the shell, in the spaces between the plate pairs.
  • the primary and secondary circuits are separate from each other, i.e. the first heat exchange medium flowing in the inner part of the stack of plates cannot get mixed with the second heat exchange medium flowing in the shell, i.e. outside the stack of plates.
  • the first heat exchange medium on the primary side flows in every other space between two plates and the second heat exchange medium on the secondary side flows in every other space between two plates of a plate heat exchanger.
  • the heat exchange plates can, for example, typically be shaped approximately as circles, the diameter of which is for example 0.2-1.5 meters.
  • the plate heat exchanger can, for example, substantially be shaped as a circular cylinder, the length of which can, for example, be 0.5-3 meters and the diameter 0.2-1.6 meters.
  • a circular structure is preferable with regards to pressure resistance. It is however clear that the solution according to the invention also is suitable for other heat exchangers, which have a stack of plates surrounded by a shell.
  • the pressure-bearing parts of the heat exchanger can be made of materials classified as pressure vessel steels, the carbon content of which materials is 0.2 % at the most.
  • the shell, ends, pipe connections and flanges of a heat exchanger can be made of pressure vessel steel.
  • the heat exchange plates can be manufactured from pressure vessel steel.
  • the plate elements making up one heat exchange plate are at least mainly of the same size when it comes to their surface area.
  • the plate elements making up one heat exchange plate are preferably practically identical to each other, wherefore they can be arranged in close contact with each other by pushing or pressing.
  • a close contact means that the sides of the connected plate elements, which are towards each other, are in contact with each other at least mainly over their surface or even at their entire surface.
  • no gap or empty space remains between them, other than what is caused by the rounding of possible folds.
  • Air remaining between the elements can function as insulation, which could weaken the heat exchange from one plate element to another, i.e. inside the heat exchange plate. For this reason the aim is generally to minimize the gaps or empty spaces between the plate elements.
  • a heat exchange plate made up of two or more plate elements easily has a lower thermal conduction effect, due to the boundary surfaces which are formed between the plate elements.
  • a material which conducts heat well has been added between the plate elements, i.e. in practice to the surface of a plate element, which surface comes against another plate element, which material improves the thermal conduction from one plate element to another, i.e. from the first side of the heat exchange plate to its second side.
  • the adding of the material is typically done before the plate elements are arranged on top of each other and attached to each other.
  • the heat-conducting material can for example be in the form if a foil, powder, unguent, liquid or paste, and it can for example comprise soldering metal, graphite or the like.
  • the thermal conductivity of plate elements arranged on top of each other can thus be improved by fitting a material between them, which has a high heat exchange factor.
  • a high heat exchange factor can for example mean higher than the heat exchange factor of the material of the plate elements.
  • the thermal conductivity of plate elements arranged on top of each other can also be improved by attaching them to each other by soldering and/or welding completely or partly. The welding can be performed with a spot, projection or laser welding method.
  • the plate elements of the heat exchange plate are attached to each other partly or completely by soldering.
  • the heat exchange plates are circular and their plate elements are attached to each other by welding at the perimeters of the plate elements, and at the perimeters of the openings in the heat exchange plates.
  • the individual heat exchange plates formed of plate elements, which form one plate pair, can be attached to each other, for example by welding, at the edges of the openings in the heat exchange plates.
  • the pressure resistance of the heat exchange plates of the plate heat exchanger can be improved by placing reinforcements at the openings in the plate elements of the heat exchange plate and/or at the perimeter of the heat exchange plate.
  • the edges of the heat exchange plate are the weakest spots of the structure with regards to pressure resistance.
  • reinforcements have been arranged in the edges of the heat exchange plates and/or also at the edges of the openings in the heat exchange plates, which reinforcements have been attached preferably by welding.
  • the reinforcements can be ring-like, for example plate rings or the like.
  • the structure of the stack of plates made up of heat exchange plates and its pressure resistance can be strengthened.
  • Reinforcements can also be used in conventional heat exchange plates, which have not been manufactured from separate plate elements, but which have been manufactured from one piece.
  • Such a single element structure maintains the heat exchange properties of a plate heat exchanger, and the reinforcements raise its pressure resistance rating.
  • its pressure resistance also improves remarkably, because the outer edges of the heat exchange plates and the perimeters of the openings are supported with the reinforcements, which parts are usually the first to give in when the pressure is raised.
  • a hole or holes have been formed in at least one plate element of at least one heat exchange plate, from which hole(s) heat exchange medium can get between the plate elements, into contact with another plate element.
  • the heat exchange medium getting between the plate elements is however not allowed to get through the entire heat exchange plate, i.e. through all the plate elements of the heat exchange plate.
  • the heat exchange medium functions as a substance which conducts heat well between the plate elements.
  • This solution is suitable for example for situations and solutions, where at least the heat exchange medium getting in between the plate elements is a liquid. Liquids typically have better heat exchange properties than gasses.
  • the heat exchange plate is grooved or corrugated.
  • the heat exchange effect of the heat exchanger can be controlled by the shape of the grooving and corrugation.
  • the plate elements making up the heat exchange plates are grooved or corrugated, and they are arranged on top of each other so that the grooves of the elements fit into each other.
  • the plate heat exchanger according to the invention is especially suitable for use in situations where the heat exchange mediums are liquid/liquid, liquid/gas or various two-phase applications.
  • Figure 1 shows a cross-section from the side of a plate heat exchanger according to an embodiment of the invention
  • Figure 2 shows a heat exchange plate according to an embodiment of the invention
  • Figure 3 shows a partial schematic cross-section of plate pairs of a plate heat exchanger according to an embodiment of the invention
  • Figure 4 shows a partial schematic cross-section of plate pairs of a plate heat exchanger according to another embodiment of the invention
  • Figure 5 shows a heat exchange plate according to an embodiment of the invention, which is reinforced with ring-like reinforcements at the perimeter of the openings
  • Figure 6 shows a heat exchange plate according to an embodiment of the invention, which has been reinforced with a continuous reinforcement fitted onto the perimeter and the area of the openings
  • Figure 7 shows a separate reinforcement according to an embodiment of the invention, to be fitted at the openings of the heat exchange plate.
  • FIGURES Figure 1 shows a plate heat exchanger 1 , inside the shell 2 of which a stack of plates 3 has been arranged.
  • the flows of the heat exchange mediums are shown with arrows.
  • the stack of plates 3 is fastened between the end plates 4a, 4b.
  • the stack of plates 3 is comprised of plate pairs, which have been shown in more detail for example in figures 3 and 4. For the sake of clarity of the figures, the plate pairs are not shown in more detail in figure 1.
  • Flow channels 7a, 7b penetrate the stack of plates 3.
  • inlet and outlet connections 8a and 8b for the first heat exchange medium have been arranged through the end plate 4a by the flow channels 7a and 7b.
  • the primary circuit of the plate heat exchanger 1 thus passes via the inlet connection 8a into the flow channel 7a inside the stack of plates, from there onward inside the plate pairs to flow channel 7b and along it out from the outlet connection 8b.
  • An outlet connection 10a for the second heat exchange medium has been arranged through the top part 2a of the shell, and an inlet connection 10b for the second heat exchange medium has been arranged through the bottom part 2b of the shell.
  • the secondary circuit of the plate heat exchanger 1 thus passes from the inlet connection 10a to the bottom part 2b of the plate heat exchanger, from there via the spaces between the plate pairs to the top part 2a of the plate heat exchanger and to the outlet connection 10b.
  • FIG 2 shows a circular heat exchange plate 5 according to an embodiment of the invention, which comprises two or more plate elements, placed on top of each other.
  • the heat exchange plate 5 has two openings 6a and 6b for the flow of the first heat exchange medium, i.e. for the primary circuit.
  • the heat exchange plate 5 also comprises corrugations or grooves 25, and protrusions 25' between them, with the aid of which flow channels can be formed for the heat exchange mediums both inside the plate pair and between two subsequent plate pairs.
  • the plate pairs are shown in more detail in figures 3 and 4.
  • FIG. 3 shows a cross-section of plate pairs 24, 24' of a plate heat exchanger according to an embodiment of the invention.
  • An inner flow channel 26, 26' from the first opening 6a to the second opening (not shown) has been arranged inside each plate pair 24, 24'.
  • Subsequent plate pairs are attached to each other with weldings 23.
  • the two heat exchange plates 21 and 22, which make up the plate pair 24, are attached to each other with a weld 23" at the outer edges of the heat exchange plates 21, 22.
  • the subsequent openings 6a thus form a flow channel 7a, which penetrates the entire stack of plates.
  • the first heat exchange medium thus travels in the flow channel 7a, from there onward inside the plate pairs of the stack of plates in the inner flow channel 26, 26' from the first opening 6a to the second opening (not shown) and into the second flow channel inside the stack of plates and along it out from the heat exchanger.
  • the second heat exchange medium travels in the middle flow channel 27 between two plate pairs from the first flow channel between the bottom part of the stack of plates and the shell into the second flow channel between the top part of the stack of plates and the shell.
  • the heat exchange thus takes place through the heat exchange plates 22, 22' which separate the inner flow channels 26, 26' and the middle flow channel 27.
  • the heat exchange plates 22, 22' comprise two plate elements 28, 28', between which a material which conducts heat well has been arranged, for example soldering metal or graphite.
  • Figure 4 shows schematically the plate pairs 34, 34' of a cross-sectioned stack of plates of a plate heat exchanger according to another embodiment of the invention.
  • the edges of the openings 6a are reinforced with a reinforcement 35.
  • the outer edges of the heat exchange plates 31 , 32 are reinforced with ring-like reinforcements 35, 35". Otherwise the parts and the function of the plate pairs 34, 34' shown in figure 4 correspond to the parts and function of the plate pairs in figure 3.
  • FIG. 5 shows a circular heat exchange plate 45 of the embodiment according to figure 4, which plate comprises one plate element reinforced with reinforcements 35, 35'.
  • the heat exchange plate 45 has two openings 46 and 46' for the flow of the first heat exchange medium, i.e. for the primary circuit. The edges of the openings 46, 46' are reinforced with reinforcements 35, 35'.
  • the heat exchange plate 45 also comprises corrugations or grooves 25, and protrusions 25' between them, with the aid of which flow channels can be formed for the heat exchange mediums both inside the plate pair and between two subsequent plate pairs.
  • a ring-like reinforcement 35" which is on the rear side of the heat exchange plate 45, is shown in figure 5 with dotted lines. For someone skilled in the art, it is clear that the reinforcements 35, 35' can be placed also between the heat exchange plates 31 , 32 at the openings 6a and/or the perimeters.
  • FIG. 6 shows a heat exchange plate 48 according to an embodiment of the invention, which plate has been reinforced with a continuous reinforcement 49 fitted onto the perimeter and the area of the openings, which is in the figure shown with a dotted line and is situated on the second side, i.e. the rear side, of the heat exchange plate 48.
  • Figure 7 shows a separate reinforcement 50 according to an embodiment of the invention, to be fitted at the openings of the heat exchange plate.

Landscapes

  • 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)

Abstract

L'invention concerne un échangeur de chaleur à plaque comprenant une pile de plaques constituées de plusieurs plaques d'échange de chaleur, les plaques d'échange de chaleur étant fixées les unes aux autres par paires sous forme de paires de plaques. Une enveloppe entoure la pile de plaques, les raccordements d'entrée et de sortie pour le premier et le second milieu d'échange de chaleur ayant été disposés à travers l'enveloppe. Le raccordement d'entrée et de sortie pour le premier milieu d'échange de chaleur est disposé en connexion avec les partes intérieures de la pile de plaques, et le raccordement d'entrée et de sortie pour le second milieu d'échange de chaleur est disposé en connexion avec le côté intérieur de l'enveloppe, c'est-à-dire avec le côté extérieur de la pile de plaques. Des ouvertures ont été agencées dans les plaques d'échange de chaleur, lesdites ouvertures étant disposées les unes face aux autres dans des plaques adjacentes de telle sorte qu'elles forment le canal d'entrée et de sortie à l'intérieur de la pile de plaques pour le premier milieu d'échange de chaleur. Au moins une partie, de préférence la totalité, des plaques d'échange de chaleur sont formées de deux éléments de plaque ou plus disposés en contact étroit au-dessus les uns des autres, lesdits éléments de plaque étant fixés les uns aux autres au moins sur les périmètres des ouvertures dans les éléments de plaque. L'invention concerne également un procédé pour améliorer la résistance à la pression d'un échangeur de chaleur à plaque.
EP10716371A 2009-03-13 2010-03-12 Echangeur de chaleur à plaque et procédé pour améliorer la résistance à la pression d'un échangeur de chaleur à plaque Withdrawn EP2406572A2 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FI20095267A FI20095267A (fi) 2009-03-13 2009-03-13 Levylämmönsiirrin ja menetelmä levylämmönsiirtimen paineenkestävyyden parantamiseksi
PCT/FI2010/050191 WO2010103190A2 (fr) 2009-03-13 2010-03-12 Echangeur de chaleur à plaque et procédé pour améliorer la résistance à la pression d'un échangeur de chaleur à plaque

Publications (1)

Publication Number Publication Date
EP2406572A2 true EP2406572A2 (fr) 2012-01-18

Family

ID=40510265

Family Applications (1)

Application Number Title Priority Date Filing Date
EP10716371A Withdrawn EP2406572A2 (fr) 2009-03-13 2010-03-12 Echangeur de chaleur à plaque et procédé pour améliorer la résistance à la pression d'un échangeur de chaleur à plaque

Country Status (4)

Country Link
EP (1) EP2406572A2 (fr)
CN (1) CN102369410A (fr)
FI (1) FI20095267A (fr)
WO (1) WO2010103190A2 (fr)

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CN102538546A (zh) * 2010-12-29 2012-07-04 中国科学院上海硅酸盐研究所 碳化硅陶瓷热交换板及其制造方法
EP2527775A1 (fr) * 2011-05-25 2012-11-28 Alfa Laval Corporate AB Plaque d'échangeur thermique pour échangeur thermique de type plaque et enveloppe
DE202011110215U1 (de) * 2011-10-26 2013-03-13 Jurii Parfenov Plattenwärmetauscher
CN104296585A (zh) * 2013-07-15 2015-01-21 四平维克斯换热设备有限公司 单通道内置式热交换器板片
ES2848207T3 (es) * 2013-08-27 2021-08-05 Johnson Controls Denmark Aps Un intercambiador de calor de carcasa y placas y el uso de un intercambiador de calor de carcasa y placas
US10113803B2 (en) * 2014-11-13 2018-10-30 Hamilton Sundstrand Corporation Round heat exchanger
DE102016114713A1 (de) * 2016-08-09 2018-02-15 Thyssenkrupp Ag Synthesevorrichtung und Verfahren zur Herstellung eines Produkts
DE102016114711A1 (de) * 2016-08-09 2018-02-15 Thyssenkrupp Ag Plattenwärmetauscher, Synthesevorrichtung und Verfahren zur Herstellung eines Produkts
SI3372938T1 (sl) * 2017-03-10 2021-01-29 Alfa Laval Corporate Ab Paket plošč, ki uporablja ploščo za izmenjavo toplote integrirano z drenažnim kanalom in izmenjevalnik toplote s takim paketom plošč
CN107782631B (zh) * 2017-11-20 2024-05-14 濮阳市海林特种设备制造防护有限公司 增强热交换器管头耐压试验时壳体强度的装置及试压方法
IT201800021274A1 (it) * 2018-12-27 2020-06-27 Cga Tech S R L Scambiatore di calore e relativo metodo di realizzazione

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FI20095267A (fi) 2010-09-14
FI20095267A0 (fi) 2009-03-13
WO2010103190A4 (fr) 2011-02-03
WO2010103190A2 (fr) 2010-09-16
WO2010103190A3 (fr) 2010-12-02
CN102369410A (zh) 2012-03-07

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