JP2019510189A - Full connection of heat exchanger blocks by hydraulically expanding the pipe between the molded parts - Google Patents

Abstract

  The present invention is a plate heat exchanger (100) including at least a first heat exchanger block (10a) and a second heat exchanger block (10b), and each heat exchanger block (10a, 10b). ) Has a plurality of separation plates (4) arranged parallel to each other, the separation plates (4) having a number of heat exchange passages (1) for fluids involved in heat exchange. The heat exchanger block (10a, 10b) is defined outwardly by the cover plate (5a, 5b), and the first cover plate (5a) of the first heat exchanger block (10a) is formed. ) Relates to the plate heat exchanger (100) attached to the second cover plate (5b) facing each other of the second heat exchanger block (10b). In this case, according to the present invention, at least one first molding member (11) extending in the longitudinal direction is attached to the first cover plate (5a), and the second cover plate (5b) At least one second molded member (12) extending in the longitudinal direction and parallel to the at least one first molded member (11) is mounted, whereby both molded members (11, 12) are attached. , Facing each other in a direction (R) extending parallel to the cover plates (5a, 5b), and an intermediate chamber (15) exists between the two molded members, and the intermediate chamber (15) In addition, an element (13) extending in the longitudinal direction is disposed in a frictional connection manner on both molded members (11, 12), whereby both cover plates (5a, 5b) and thus both heat exchanger blocks (10a, 10b) are arranged. )But Are attached to each other, elements extending in the longitudinal direction (13) is formed as a hollow profile member. The invention further relates to a corresponding method.

Description

  The present invention relates to a plate heat exchanger and a method for producing such a plate heat exchanger.

  When manufacturing plate heat exchangers, especially brazed plate heat exchangers made of aluminum, a modular structure type is often used to form a relatively large unit that is piped and to reduce the labor and cost of piping. Is selected. For this purpose, two or more heat exchanger blocks (modules) are combined, for example using a bonding layer, to form a larger unit, ie a plate heat exchanger to be manufactured. The blocks are joined together by inserting a sheet metal strip at the edge between the two blocks and welding the sheet metal strip to the block. The weld seam thus extends along the outer edge of the block. This allows the blocks or modules to be coupled to each other only at the outer edge of the block. In this case, the coupling portion may be formed to extend in an annular shape at the edge portion, but may have an interrupted portion of the coupling portion along the edge portion.

  From a mechanical point of view, the module connection is formed only at the outer edge and often has a break, so it has a geometric discontinuity. In the past, sporadic damage has been observed to form exactly at this point. This is because the module coupling portion forms a stress concentration portion. Thermal deformation occurs with the temperature of the plate heat exchanger. The module coupling portion forms a deformation blocking portion and a thermal barrier between adjacent modules or blocks. Thereby, mechanical restraint stress is generated, and this restraint stress is further strengthened by the discontinuity in the module coupling portion.

  With this as a starting point, the problem underlying the present invention is to provide a plate heat exchanger and a method of manufacturing a plate heat exchanger that reduce the above-mentioned problems.

  This problem is solved by a plate heat exchanger having the features of claim 1 and a method having the features of claim 7. Advantageous configurations of the invention are correspondingly set forth in the dependent claims and are described in detail below.

  According to claim 1, a plate-type heat exchanger including at least a first heat exchanger block and a second heat exchanger block is disclosed. Each heat exchanger block has a plurality of separation plates arranged parallel to each other, the separation plates forming a number of heat exchange passages for the fluids involved in the heat exchange and heat exchange The heat exchanger block is defined outwardly by a cover plate, and the first cover plate of the first heat exchanger block is attached to the opposing second cover plate of the second heat exchanger block. It has been. In this case, according to the present invention, at least one first forming member extending in the longitudinal direction is attached to the first cover plate, and at least one first member is attached to the second cover plate in the longitudinal direction. At least one second molding member extending in parallel to one molding member is attached, whereby both molding members are opposed to each other in a direction extending in parallel to both cover plates. There is an intermediate chamber between the molded parts, in which the elements extending in the longitudinal direction are arranged in a friction-coupled manner, so that both cover plates and thus both heat exchanger blocks are attached to each other In particular, an element extending in the longitudinal direction is formed as a hollow molded member.

  According to a preferred embodiment of the plate heat exchanger according to the invention, the longitudinally extending element engages both in the first molded member notch and in the second molded member notch. In this case, the two notches form one region of the intermediate chamber, face each other in the above-described direction, and face each other.

  However, such a notch is not necessarily required to form the above-described frictional coupling portion. Accordingly, both molded members may have flat surfaces facing each other. This surface therefore does not form any notches. In this case, the longitudinally extending elements are here arranged in an intermediate chamber defined by both surfaces, in a frictional connection with the mutually facing surfaces of the two molding elements.

  According to another preferred embodiment of the plate heat exchanger according to the invention, it is stipulated that the longitudinally extending elements are arranged in both notches or in the intermediate chamber in a frictional and shape-coupled manner. .

  Thereby, the present invention advantageously allows a full connection between both cover plates or heat exchanger blocks. This overall coupling ensures a particularly good heat transfer contact between the blocks, so that the temperature difference between the blocks can be easily eliminated. In addition, mechanical coupling between the modules is also achieved and stress concentrations are relieved or eliminated.

  The at least one first forming member and the at least one second forming member and the longitudinally extending element may each extend along the entire length of the sides of both cover plates, so that the total area of the cover plates is both Can be used for mechanical coupling of blocks. In this case, the forming member and the element extending in the longitudinal direction may extend, for example, along a vertical line or a horizontal line.

  Particularly preferably, according to an embodiment of the invention, the longitudinal section of the longitudinally extending element arranged in the intermediate chamber has a longitudinally extending element in order to form a frictional joint or a frictional and cumbersome joint. It is stipulated that it is expanded by the deformation of. This is because, for example, the probe is introduced into the inner chamber of an element (for example, a hollow molded member) extending in the longitudinal direction, and the cross section or the outer diameter of each element extending in the longitudinal direction is the fluid (for example, water) supplied through the probe. Or it is preferably done hydraulically by enlarging it by loading oil). As a result, the elements extending in the longitudinal direction are respectively provided in the notch and / or the intermediate chamber in a friction coupling manner or in a friction and shape coupling manner.

  The advantage of expansion (especially hydraulic) is that manufacturing accuracy (eg module or block distortion associated with the brazing process) can be compensated. Thereby, the friction coupling part or the friction and shape coupling part which can transmit force between blocks is achieved. In addition, a heat transfer contact between the modules is formed. This achieves a uniform and particularly planar connection that can transmit mechanical and thermal loads. Thus, temperature differences between modules or blocks are smoothed or eliminated, and mechanical discontinuities are mitigated by eliminating the notch effect. This allows relatively large units to be manufactured without the risk of local mechanical overload. Stress concentrations occurring in the conventional form of module coupling at the start / end of the module coupling, which was often the cause of damage, are eliminated by the present invention. This is because the module connection is planarized and local stress concentrations are eliminated. This increases the operational certainty and the difficulty of failure or the life of the heat exchanger.

  In principle, the connection can even be released again by withdrawing the longitudinally extending element (for example a hollow molding material) from the intermediate chamber.

  Particularly preferably, the longitudinally extending element is formed complementary to a notch in the molding member adjacent on both sides, or complementary to an intermediate chamber in which the longitudinally extending element is introduced. Having at least one section. In this case, the element extending in the longitudinal direction can be introduced with a gap in the intermediate chamber, preferably along its longitudinal axis, so that the aforementioned section can be positioned in the notch. Accordingly, a friction coupling part or a friction and joint coupling part can be formed by correspondingly deforming the elements extending in the longitudinal direction (see below).

  According to an embodiment of the invention, it is specified that the intermediate chamber is formed in a circular shape or at least approximately circular in cross section. However, the intermediate chambers may be formed differently in cross section.

  In this case, the corresponding transverse plane of the aforementioned cross-section (as follows) extends perpendicular to the longitudinal axis of the longitudinally extending element or the longitudinally extending element as well as the longitudinally extending element. .

  Furthermore, according to an embodiment of the invention, the element extending in the longitudinal direction is preferably formed as a hollow molded member. The hollow molded member may have a circular cross section, for example.

  Furthermore, according to the embodiment of the present invention, it is defined that both outer surfaces of the first or second molded member that are directed opposite to each other are formed in a concave shape in the cross section. Thus, both outer surfaces of the molded member each define a notch or cavity, preferably concave in cross section, preferably semicircular.

  However, the notch may be configured in a triangle in cross section.

  If the intermediate chamber is circular or substantially circular in cross section, the longitudinally extending element is preferably a hollow molded member correspondingly circular in cross section. Thus, the hollow molded member can be introduced into a notch formed as an intermediate chamber or concave cavity, advantageously with a small gap. In this case, in order to form the above-mentioned friction coupling part or friction / shape coupling part, a relatively small deformation of the tube is achieved on the basis of a configuration complementary to the intermediate chamber or notch of the longitudinally extending element. Only necessary.

  If the notch is triangular in cross section, the longitudinally extending element may be a rectangular hollow molded member formed correspondingly in cross section for the above reasons, for example.

  Other complementary pairs of longitudinally extending elements and corresponding intermediate chambers or notches are possible as well.

  Preferably, the notches or cavities each extend over the corresponding molding member in the longitudinal direction of the corresponding molding member or in the direction of the longitudinal axis.

  Further in accordance with an embodiment of the present invention, the first molded member is brazed or welded to the first cover plate and / or the second molded member is brazed or welded to the second cover plate. It is stipulated that

  Furthermore, according to the embodiment of the present invention, a plurality of first molded members extending in the longitudinal direction and extending in parallel to each other are attached to the first cover plate, and the second cover plate includes: Since a plurality of second molding members extending in the longitudinal direction and extending in parallel with each other are attached, one second between the two first molding members adjacent to each other in the above-described direction. Molding members are arranged, and one intermediate chamber exists between each second molding member and the first molding member adjacent on both sides. Since two longitudinally extending elements are frictionally connected to the adjacent first molded member and the adjacent second molded member, both cover plates and thus both heat exchanger blocks are attached to each other. Being It is defined.

  Preferably, according to an embodiment, each longitudinally extending element engages in a notch in the adjacent first forming member as well as in a notch in the adjacent second forming member, In this case, it is specified that the two notches form one region of each intermediate chamber, face each other in the above-described direction, and face each other.

  Furthermore, according to the embodiment of the present invention, it is specified that each element extending in the longitudinal direction is arranged in a corresponding notch or in an intermediate chamber in a frictional and shape coupling manner.

  Each element extending in the longitudinal direction and the correspondingly arranged notch or the correspondingly arranged intermediate chamber may also be formed according to any of the embodiments described above.

  According to another aspect of the invention, a method of manufacturing a plate heat exchanger or a method of combining at least two heat exchanger blocks to form such a plate heat exchanger is proposed.

  The method according to the present invention comprises a plurality of separation plates, each heat exchanger block being arranged parallel to each other, the separation plates comprising a number of heat exchanges for the fluids involved in the heat exchange. At least one first molding that forms a passage and is defined by an outwardly extending cover plate on the first cover plate of the first heat exchanger block. At least one second forming member extending in the longitudinal direction is attached to the second cover plate of the second heat exchanger block, and both the forming members extend in parallel to both cover plates. As opposed to each other, the cover plates are arranged so as to face each other, and an intermediate chamber exists between the two molding members, and an element extending in the longitudinal direction is provided in the intermediate chamber. Place the friction coupling type to the molding member, thereby both a cover plate, attached to each other and thus both the heat exchanger block, the elements in particular extending in the longitudinal direction, and defines that it is formed as a hollow profile member.

  According to a preferred embodiment of the method according to the invention, the longitudinally extending element engages in a notch in the adjacent first forming member and in a notch in the adjacent second forming member. In addition, it is prescribed that elements extending in the longitudinal direction are arranged in correspondingly arranged intermediate chambers.

  Preferably, the longitudinally extending elements are arranged in both notches arranged corresponding to the friction and shape coupling type.

  According to an embodiment of the method according to the invention, it is specified that the intermediate chamber is formed in a circular or almost circular shape in cross section. According to an embodiment of the method according to the invention, the longitudinally extending element is correspondingly formed as a hollow molded member or tube with a circular cross-section (see above). Intermediate chambers or notches and other cross-sectional shapes of the tubes are possible as well.

  Furthermore, according to a preferred embodiment of the method according to the invention, the above-mentioned outer surface (see above) or notch defined by the outer surface of the molded member is formed in a concave shape in the cross section, but preferably it is transverse It is formed as a semicircular or nearly semicircular cavity on the surface. The notch may be formed as a triangular cavity in cross section. Other cross-sectional shapes of notches are possible as well (see above).

  According to a particularly preferred embodiment of the invention, the longitudinal elements are arranged in a correspondingly arranged intermediate chamber, for example with a gap, and then expanded by deformation in the cross section, so that the longitudinal elements are frictional. It is arranged in a notch arranged corresponding to the coupling type or the friction and shape coupling type or in the correspondingly arranged intermediate chamber.

  Particularly preferably, the longitudinally extending element is expanded in cross section as soon as it is arranged in a correspondingly arranged intermediate chamber. Thereby, the shape coupling | bond part closely contacted with the adjacent (1st and 2nd) molded member is formed suitably. Preferably, the longitudinally extending element or hollow molded member is hydraulically introduced, for example, by introducing a probe into the inner chamber of the hollow molded member and loading a fluid (eg water or oil) through the probe into the inner chamber. Since it is expanded, the above-described expansion or expansion of the outer diameter of the hollow molded member occurs. The loading of the fluid is carried out in particular so that the hollow molded member flows plastically in order to achieve the best possible shape connection with the surrounding molded member.

  Furthermore, according to an embodiment of the method according to the invention, at least one first molded member is brazed or welded to the first cover plate and / or at least one second molded member is second Brazing or welding to the cover plate is specified.

  Furthermore, according to an embodiment of the method according to the invention, the first cover plate is fitted with a number of first molded members extending in the longitudinal direction and extending parallel to each other, It is specified to attach a number of second molded members extending longitudinally and parallel to each other. In this case, one second molding member is disposed between each two first molding members adjacent in the above-described direction, and each second molding member and the first molding member adjacent on both sides are arranged. Both cover plates are arranged facing each other so that there is one intermediate chamber between them. In the intermediate chamber, one longitudinally extending element is arranged in a friction-coupled manner on the adjacent first forming member and the adjacent second forming member, so that both cover plates and thus both heat exchanger blocks are arranged. Are attached to each other.

  Preferably, according to an embodiment of the method according to the present invention, each longitudinally extending element is not only in the notch of the adjacent first forming member, but also in the notch of the adjacent second forming member. It is also defined that both notches form a region of each intermediate chamber and face each other and face each other in the above-mentioned direction.

  Furthermore, according to an embodiment of the method according to the invention, it is prescribed that the elements extending in the longitudinal direction are arranged in a frictional and shape-coupled manner in correspondingly arranged notches or correspondingly arranged intermediate chambers. ing.

  Each element extending in the longitudinal direction and the correspondingly arranged notch or the correspondingly arranged intermediate chamber may be formed according to any of the one embodiment described above.

  Further features and advantages of the invention are explained in more detail below with reference to the description of the drawings of the examples.

A plate type according to the invention comprising a first heat transfer block with a first shaping member for coupling the first block to another second block to which a second shaping member is attached. It is a partial perspective view of a heat exchanger. FIG. 6 is a schematic partial cross-sectional view showing a connection of two blocks by a first and second molded member and a longitudinally extending element held in the molded member. FIG. 6 is a schematic cross-sectional view showing a probe for expanding a tube disposed between two molded members for forming a shape-coupled joint between two cover plates of two heat transfer blocks. . It is detail drawing which shows the plate type heat exchanger which concerns on this invention provided with the 1st shaping | molding member which has a triangular notch, and a 2nd shaping | molding member. It is detail drawing which shows the plate type heat exchanger which concerns on this invention provided with the 1st shaping | molding member which has a flat side surface, and a 2nd shaping | molding member.

  FIG. 1 shows a plate heat exchanger 100 according to the invention in connection with FIG. The plate heat exchanger 100 has at least two heat exchanger blocks 10a and 10b. In this case, only one block 10a is shown in FIG. 1 for ease of viewing. The second block 10b is merely schematically suggested by the partially illustrated cover plate 5b. The second block 10b may be configured according to the format of the first block 10a, for example.

  Both heat exchanger blocks 10a, 10b are preferably plate heat exchangers, preferably plate heat exchangers made of aluminum and brazed (brazing using a hard solder). Such heat exchangers are used at different pressures and temperatures in many devices. Heat exchangers are used, for example, when cracking air or liquefying natural gas, or in equipment that produces ethylene. Such a plate heat exchanger is shown and described, for example, in "The standards of the brazed aluminum plate-fin heat exchanger manufacturers association" ALPEMA, 3rd edition, 2010, page 5.

  Both heat exchanger blocks 10a, 10b have a plurality of separating plates 4 (for example in the form of separating metal sheets) arranged parallel to each other. These separation plates 4 form a number of heat exchange passages 1 for the media that are to exchange heat with each other. These heat exchange passages 1 are closed outward by edge strips 8 (for example, sheet metal strips, hereinafter also referred to as sidebars 8) mounted in alignment with the edges of the separation plate 4. . In the heat exchange passage 1, for example, a corrugated heat transfer structure 3 (for example, in the form of a thin metal plate) is arranged. This heat transfer structure is also referred to as fin 3. The separation plate 4, the fins 3 and the side bars 8 are firmly connected to each other, thereby forming a compact heat exchanger block 10a or 10b. Both heat exchanger blocks 10a, 10b are defined outwardly by cover plates 5a, 5b (in the form of cover metal sheets), respectively, outwardly.

  A semi-cylindrical manifold 7 having a pipe piece 6 is attached over the inflow opening and the outflow opening 9 of the heat exchange passage 1 for introducing or discharging the medium to be heat exchanged. This pipe piece 6 serves to connect the pipeline to be introduced and led out. The manifold 7 is also referred to as a header 7 below. The inflow and outflow openings 9 of the heat exchange passage 1 are formed by so-called distribution disks or distribution fins 2. These distribution discs or distribution fins 2 serve to distribute the medium evenly within the individual heat exchange passages 1. The medium flows through the heat exchange passage 1 in the passage formed by the fins 3 and the separation plate 4. The manifold 7 and the tube piece 6 can already be attached to individual blocks 10a or 10b. Alternatively, according to one embodiment, it is possible that all manifolds or individual manifolds 7 may be attached to both blocks 10a, 10b only after the blocks 10a, 10b are attached to each other according to the present invention. In this case, for example, the header 7 may extend beyond both blocks 10a, 10b, or may be attached to both blocks 10a, 10b, thereby sending media to the blocks 10a, 10b or sending media to both blocks. 10a, 10b (this is suggested by the dashed line in FIG. 1).

  The fin 3 is brazed at the contact point with the separated metal thin plate 4. Thereby, the concentrated heat transfer contact is formed between the fin 3 and the separated metal thin plate 4. As a result, heat exchange between various different media that alternately flow in the adjacent heat exchange passages 1 is improved.

  The blocks 10a and 10b are preferably made of aluminum. In this case, the components are joined together by brazing (brazing using a hard braze). However, special steel can also be used as a material. Fins with brazing, separated sheet metal, distribution fins, cover plates and side bars are stacked on top of each other and then brazed in a furnace to form heat exchanger block 10a or 10b. On the heat exchanger blocks 10a, 10b, the header 7 with the tube piece 6 is then welded.

  As can be seen from FIGS. 1 and 2, at least one first molding member 11 is attached to the first cover plate 5a of the first heat exchanger block 10a. In this case, preferably, a large number of first molding members 11 extending in the longitudinal direction and extending in parallel with each other are attached to the first cover plate 5a. These first molding members 11 each extend in the vertical direction here. Similarly, at least one second molding member 12 is attached to the second cover plate 5b of the second heat exchanger block 10b. In this case as well, a large number of second molding members 12 extending in the longitudinal direction and extending parallel to each other are preferably attached to the second cover plate 5b. These second molded members 12 also extend in the vertical direction.

  In order to connect the two heat exchanger blocks 10a and 10b, the heat exchanger blocks 10a and 10b are formed so that the first cover plate 5a and the second cover plate 5b face each other and In this case, at least one first molded member and at least one second molded member are parallel to both cover plates (and in this case, perpendicular to the vertical direction). In the vertical direction), so that at least one intermediate chamber 15 is formed. In the intermediate chamber 15, the elements 13 extending in the longitudinal direction are arranged in a frictional coupling manner and preferably in a shape coupling manner with respect to the adjacent molding members 11 and 12.

  Preferably, as shown in FIG. 2, a large number of first molded members 11 and second molded members 12 are provided. In this case, preferably, one second molding member 12 is disposed between each of the two first molding members 11 adjacent to each other, whereby each of the second molding members 12 (in the R direction). ) One intermediate chamber 15 exists between each of the first molding members 11 adjacent on both sides, and one element 13 extending in the longitudinal direction in each intermediate chamber 15 is adjacent to the adjacent molding member 11. , 12 are also arranged in a friction coupling manner, and preferably also in a shape coupling manner, in which case the notches 110 of the first forming members 11 adjacent to each other in a friction coupling manner and in particular in a shape coupling manner. Since it engages with the inside of the notch 120 of each second molded member 12, both cover plates 5a, 5b and thus both heat exchanger blocks 10a, 10b are attached to each other. This achieves in particular that both blocks cannot be moved away from each other in a direction perpendicular to both cover plates 5a, 5b.

  According to FIG. 2, the longitudinally extending element 13 can be a hollow molded member having a hollow cylindrical wall and correspondingly defining one inner chamber. Correspondingly, the notches 110, 120 are formed as cavities which are concave (for example approximately semicircular) in cross section (here perpendicular to the vertical or longitudinal axis of the element 13). Other cross-sectional pairs are possible as well. Accordingly, the notches 110 and 120 may be formed in a triangular shape in cross section as shown in FIG. 4, in which case the hollow molded member 13 is correspondingly square (eg, square or square) in cross section. Is formed. Furthermore, the notch formed in the molded members 11 and 12 may be omitted. Thus, the molded members 11, 12 have, for example, flat surfaces 11a, 12a, and thus the elements extending longitudinally between these surfaces 11a, 12a are, for example, as suggested in FIG. Anchoring can be done purely frictionally (for example by extending the cross section of this element). In FIG. 5, the expanded state of the hollow molded member 13 is suggested by a broken line.

  If both cover plates 5a, 5b are arranged opposite each other as described above, as shown in FIG. 2, the element 13 is preferably introduced into the intermediate chamber with a gap. Is done. In this case, each element 13 is deformed in order to form a friction coupling part and preferably a shape coupling part between each element 13 and the adjacent molding members 11, 12. FIG. 2 shows the arrangement of the elements 13 with gaps in the associated intermediate chamber 15 (FIG. 2, upper figure), and the frictional coupling and shape coupling of the elements 13 in the associated intermediate chamber 15 without gaps. Fig. 6 schematically illustrates this transition between arrangements (Fig. 2, bottom diagram). In this case, the outer diameter D of the tube 13 is expanded to a larger outer diameter D ′.

  Finally, FIG. 3 illustrates the possibility of expanding a hollow molded member (eg, tube) or element 13 to form each friction coupling or friction and shape coupling. In this case, a probe (Sonde) 20 is introduced into the inner chamber 13a of each hollow molded member 13 disposed in the intermediate chamber 15 with a gap. The probe 20 is mounted on the molded members 11 and 12 on the end face side, particularly with an annularly extending flange 20a. In this case, a section 20b of the probe 20 protruding from the flange 20a is included in the corresponding hollow molded member 13. It rushes into the chamber 13a. This section 20b of the probe 20 is sealed with respect to the inner chamber 13a of each hollow molded member 13 by one annularly extending seal 23 (for example, in the form of an O-ring) at both ends thereof.

  A hydraulic fluid F, for example water or oil, is now discharged via the inflow conduit 24 into the passage 21 formed in the probe. Since the passage 21 opens in the lateral opening 22 of the section 20 b of the probe 20, the fluid F can apply pressure to the inner wall of each hollow molding member 13. Thereby, expansion of each hollow molded member 13 to a larger outer diameter D ′ occurs. This outer diameter D 'anchors each hollow molding member 13 in the intermediate chamber 15 arranged corresponding to the shape coupling type or in the notches 110 and 120. The pressurization of the fluid F is preferably such that each hollow molded member 13 can be plastically deformed, thereby achieving the best possible shape coupling with the surrounding molded members 11, 12. Implemented.

DESCRIPTION OF SYMBOLS 1 Heat exchange path 2 Distribution fin 3 Disc, fin 4 Separation plate 5a, 5b Cover plate 6 Pipe piece 7 Manifold, header 8 Side bar 9 Inflow or outflow opening 10a, 10b Heat exchanger block 11 1st shaping | molding member 11a, 12a Outer surface 11b, 12b End surface 12 Second molding member 13 Element 13a extending in the longitudinal direction 13a Inner chamber 110, 120 Notch 15 Intermediate chamber 20 Probe 20a Section 20b Flange 21 Passage 22 Lateral opening 23 Seal 24 Pipe 100 Plate type heat Exchanger D, D 'Outer diameter F Liquid (for example, water)
R direction

Claims (13)

A plate heat exchanger (100) comprising at least a first heat exchanger block (10a) and a second heat exchanger block (10b), wherein each heat exchanger block (10a, 10b) is mutually connected A plurality of separation plates (4) arranged parallel to each other, the separation plates (4) forming a number of heat exchange passages (1) for the fluids involved in the heat exchange The heat exchanger block (10a, 10b) is defined outwardly by a cover plate (5a, 5b), and the first cover plate (5a) of the first heat exchanger block (10a). In the plate heat exchanger (100), which is attached to the second cover plate (5b) facing the second heat exchanger block (10b),
At least one first molding member (11) extending in the longitudinal direction is attached to the first cover plate (5a), and at least one of the at least one molding member in the longitudinal direction is attached to the second cover plate (5b). At least one second molding member (12) extending in parallel with the first molding member (11) is attached, whereby the molding members (11, 12) are connected to the cover plate ( 5a, 5b) are opposed to each other in a direction (R) extending in parallel to each other, and an intermediate chamber (15) exists between the two molded members, and the intermediate chamber (15) has a longitudinal direction. An element (13) extending in the direction is disposed in a frictional coupling manner with respect to the two molding members (11, 12), whereby both the cover plates (5a, 5b) and thus the both heat exchanger blocks (1) are arranged. a, 10b) are mounted to each other, characterized in that the element extending in the longitudinal direction (13) is formed as a hollow profile member, plate heat exchanger (100).   The longitudinally extending element (13) engages both in the notch (110) of the first molded member (11) and in the notch (120) of the second molded member (12). 2. The plate-type heat according to claim 1, wherein the notches (120) each form a region of the intermediate chamber (15), face each other in the direction (R) and face each other. Exchanger.   3. A plate heat exchanger according to claim 1 or 2, wherein the elements (13) extending in the longitudinal direction are arranged in both notches in a frictional and shape coupling manner.   The notches (110, 120) are formed as concave cavities in the cross section, in particular as semicircular cavities in the cross section, or the notches (110, 120) as triangular cavities in the cross section. The plate heat exchanger according to any one of claims 1 to 3, wherein the plate heat exchanger is formed.   In order to form the friction coupling part, or the friction and shape coupling part, the transverse section of the element (13) extending in the longitudinal direction disposed in the intermediate chamber (15) has the element (13) extending in the longitudinal direction. The plate type heat exchanger according to any one of claims 1 to 4, wherein the plate type heat exchanger is expanded by deformation of the above.   At least one first molded member (11) is brazed or welded to the first cover plate (5a) and / or at least one second molded member (12). A plate heat exchanger according to any one of claims 1 to 5, wherein the plate is brazed or welded to the second cover plate (5b).   A method of manufacturing a plate heat exchanger (100) comprising at least a first heat exchanger block (10a) and a second heat exchanger block (10b), wherein each heat exchanger block (10a, 10b) Has a plurality of separation plates (4) arranged parallel to each other, the separation plates (4) forming a number of heat exchange passages (1) for the fluids involved in the heat exchange The heat exchanger block (10a, 10b) is defined outwardly by a cover plate (5a, 5b), and the first cover of the first heat exchanger block (10a) At least one first molding member (11) extending in the longitudinal direction is attached to the plate (5a), and at least one first molding member (11) is attached to the second cover plate (5b) of the second heat exchanger block (10b). 2 A shape member (12) is attached, and both the cover plates (5a, 5) are arranged so that both the molded members (11, 12) face each other in a direction extending in parallel to the cover plates (5a, 5b). 5b) are arranged opposite to each other, and an intermediate chamber (15) exists between the molding members (11, 12), and an element (13) extending in the longitudinal direction in the intermediate chamber (15). ) Are arranged in a friction coupling manner with respect to both the molded members (11, 12), and both the cover plates (5a, 5b) and thus the both heat exchanger blocks (10a, 10b) are attached to each other in the longitudinal direction. A method for producing a plate heat exchanger, characterized in that the element (13) extending in the form of a hollow molded member is formed.   The element extending in the longitudinal direction is inserted into the intermediate chamber (not shown) in the notch (110) of the first shaping member (11) and the notch (120) of the second shaping member (12). 15) The method according to claim 7, wherein the cutouts are arranged within 15) and the notches face each other and face each other along the direction (R).   The method according to claim 7 or 8, wherein the longitudinally extending element (13) is arranged in a friction and shape connection in the notches (110, 120).   The notches (110, 120) are formed as concave cavities in the cross section, in particular as semicircular cavities in the cross section, or the notches (110, 120) as triangular cavities in the cross section. 10. The method according to any one of claims 7 to 9, wherein said method is formed.   The element (13) extending in the longitudinal direction is arranged in the intermediate chamber (15), and then the cross section (D) of the element (13) is formed as the friction coupling part or the friction and shape coupling part. 11. A method according to any one of claims 7 to 10, wherein the method is expanded by deformation.   12. A method according to claim 11, wherein the longitudinal section of the element (13) is expanded by hydraulic pressure.   The first molded member (11) is brazed or welded to the first cover plate (5a) and / or the second molded member (12) is bonded to the second cover plate ( 13. A method according to any one of claims 7 to 12, wherein the brazing or welding is performed in 5b).

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