EP4573337A1 - Plattenwärmetauscher und verfahren - Google Patents
Plattenwärmetauscher und verfahrenInfo
- Publication number
- EP4573337A1 EP4573337A1 EP23757515.4A EP23757515A EP4573337A1 EP 4573337 A1 EP4573337 A1 EP 4573337A1 EP 23757515 A EP23757515 A EP 23757515A EP 4573337 A1 EP4573337 A1 EP 4573337A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- heat exchanger
- cover plate
- exchanger block
- block module
- plate
- 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.)
- Pending
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
- F28F9/26—Arrangements for connecting different sections of heat-exchange elements, e.g. of radiators
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F2275/00—Fastening; Joining
- F28F2275/06—Fastening; Joining by welding
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F2280/00—Mounting arrangements; Arrangements for facilitating assembling or disassembling of heat exchanger parts
Definitions
- the invention relates to a plate heat exchanger and a method for producing such a plate heat exchanger.
- a plate heat exchanger comprises a heat exchanger block, which is constructed from alternately arranged heat exchange elements, in particular so-called fins or heat transfer fins, and separating plates.
- the heat exchange elements are made of corrugated or ribbed aluminum sheets, whereas the partition plates can be made of smooth aluminum sheets.
- the plate heat exchanger forms a large number of parallel heat transfer passages in which process media can flow and indirectly transfer heat to process media guided in adjacent heat transfer passages.
- a heat exchanger block as mentioned above can be composed of several heat exchanger block modules. According to in-house knowledge, these heat exchanger block modules can be connected to one another using a welded connection.
- This welded connection presents no problems with the occurrence of cracks if the process is stable and continuous. On the contrary, the welded connection poses a risk of cracking if the process changes dramatically and the resulting large temperature fluctuations and temperature gradients. This needs to be improved.
- an object of the present invention is to provide an improved plate heat exchanger.
- a plate heat exchanger with a first heat exchanger block module and a second heat exchanger block module is proposed, wherein the first heat exchanger block module and the second heat exchanger block module are connected to one another using a positive connection, wherein the first heat exchanger block module and the second heat exchanger block module are connected to one another using a weld seam and wherein the weld seam covers the positive connection at least in sections.
- the first heat exchanger block module has a first cover plate, the second heat exchanger block module having a second cover plate, the first cover plate and the second cover plate being connected to one another using the positive connection, the first cover plate and the second cover plate being positively connected to one another using a connecting element are connected, wherein the first cover plate has a recess in which the connecting element is received, and wherein the second cover plate has a recess in which the connecting element is received.
- first heat exchanger block module and the second heat exchanger block module are connected to one another both with the aid of the form-fitting connection and with the aid of the weld seam, it is possible to design the form-fitting connection in such a way that force transmission between the first heat exchanger block module and the second heat exchanger block module or vice versa exclusively or approximately only with the help of the positive connection, so that the weld seam is preferably not subjected to mechanical stress. This reliably prevents cracks from forming in the weld seam.
- the plate heat exchanger is in particular a so-called Plate Fin Heat Exchanger (PFHE) or can be referred to as such.
- the plate heat exchanger is made up of a large number of alternately arranged heat exchange elements and separating plates. A separating plate is arranged between two heat exchange elements and a heat exchange element is arranged between two separating plates. The heat exchange elements and the separating plates are thus stacked on top of one another and form a heat exchanger block of the plate heat exchanger.
- the heat exchange elements are so-called fins, in particular so-called heat transfer fins, or can be referred to as fins.
- the heat exchange elements can be designed as corrugated or ribbed sheets, for example as aluminum sheets.
- the partition plates are partition plates or can be referred to as partition plates.
- the separating plates can also be made of aluminum.
- the heat exchanger block is in the first heat exchanger block module and in the second heat exchanger block module divided.
- Each heat exchanger block module includes any number of heat exchange elements and separator plates.
- the heat exchanger block can have any number of heat exchanger block modules.
- the number of heat exchange elements and the number of separating plates per heat exchanger block module is arbitrary.
- the plate heat exchanger or the previously mentioned heat exchanger block preferably has a cuboid geometry with a width direction or x-direction, a vertical direction or y-direction and a depth direction or z-direction.
- the heat exchanger block preferably has a larger dimension than in the width direction and the depth direction, so that an elongated cuboid geometry of the heat exchanger block results.
- the heat exchanger block modules also have such an elongated cuboid geometry.
- the heat exchange elements and the partition plates can be arranged next to one another in the depth direction or stacked one above the other in the vertical direction.
- the plate heat exchanger differs from the heat exchanger block in that the plate heat exchanger has, in addition to the heat exchanger block, a large number of connection devices for supplying and discharging fluids to and from the plate heat exchanger.
- the heat exchange elements are preferably enclosed with the help of edge strips, in particular aluminum edge strips, which are also part of the heat exchanger block.
- the edge strips are soldered to the separating plates and/or the heat exchange elements.
- the edge strips can form a frame surrounding the respective heat exchange element.
- the heat exchanger block can have cover plates that close the heat exchanger block in the vertical direction upwards and downwards.
- the cover plates can be external partition plates.
- the cover plates can be brazed to outermost heat exchange elements.
- separating plates can also be provided between the cover plates and the outermost heat exchange elements.
- the cover plates differ from the partition plates preferably only in their wall thickness or thickness.
- the plate heat exchanger can be part of a process engineering system.
- the process engineering plant can, for example, be a plant for air separation Production of liquefied natural gas (LNG), a plant used in the petrochemical industry or the like.
- LNG liquefied natural gas
- the process engineering system can include a large number of such plate heat exchangers. Accordingly, a process engineering system with such a plate heat exchanger is also proposed.
- a positive connection is created by the interlocking or behind-interlocking of two connection partners, in this case the first heat exchanger block module and the second heat exchanger block module. Accordingly, the first heat exchanger block module engages in a form-fitting manner in the second heat exchanger block module or vice versa.
- two cover plates of the heat exchanger block modules facing one another are connected to one another in a form-fitting manner.
- a positive connection can be made and released as often as desired.
- the first heat exchanger block module has a first cover plate, wherein the second heat exchanger block module has a second cover plate, and wherein the The first cover plate and the second cover plate are connected to one another using the positive connection.
- each heat exchanger block module has two cover plates, between which an active area comprising a plurality of alternately arranged heat exchange elements and separating plates is provided.
- the first cover plate of the first heat exchanger block module and the second cover plate of the second heat exchanger block module can directly interlock with one another in a form-fitting manner.
- the first cover plate of the first heat exchanger block module and the second cover plate of the second heat exchanger block module can be connected to one another in a form-fitting manner using an additional connecting element or a plurality of such connecting elements.
- the first cover plate and/or the second cover plate each have a thickness of 8 to 18 mm, preferably 10 to 16 mm, more preferably 12 to 14 mm.
- the cover plates have a thickness of at least 12 mm.
- the cover plates can be constructed in multiple layers. “Multi-layered” in this case means in particular that the cover plates can have several layers. These layers can, for example, be soldered and/or welded together.
- first cover plate and the second cover plate are connected to one another using the weld seam.
- the first heat exchanger block module rests with its first cover plate on the second cover plate of the second heat exchanger block module or vice versa.
- the weld seam extends completely around the first cover plate and the second cover plate.
- the first cover plate and the second cover plate are positively connected to one another using a connecting element.
- the first cover plate and the second cover plate are connected to one another indirectly or indirectly using the connecting element. That means in particular, that the first cover plate is positively connected to the connecting element and that the connecting element is positively connected to the second cover plate.
- the number of connecting elements is basically arbitrary. Preferably, at least in areas of the heat exchanger block or the heat exchanger block modules where maximum stresses can occur, such connecting elements are provided. With the help of the connecting element or connecting elements, a force transmission from the first cover plate to the second cover plate or vice versa is possible.
- the connecting element can be plate-shaped, for example.
- the connecting element can also have a double-T-shaped or a bone-shaped cross section.
- the recess in the first cover plate extends into the first cover plate starting from a surface of the first cover plate facing the second cover plate.
- the recess in the second cover plate extends into the second cover plate starting from a surface of the second cover plate facing the first cover plate.
- the surface of the first cover plate can be referred to as the first surface.
- the surface of the second cover plate can be referred to as the second surface.
- the recesses in the first cover plate are incorporated into the first surface. This means in particular that the recesses in the first cover plate are located below the first surface.
- the recesses in the first cover plate extend from the first surface into the first cover plate.
- the recesses in the first cover plate are thus arranged within the first cover plate.
- the first surface and the second surface in particular face each other. In particular, the first cover plate and the second cover plate rest against each other on their two surfaces.
- the recesses in the second cover plate are incorporated into the second surface. This means in particular that the recesses in the second cover plate are located below the second surface.
- the recesses in the second cover plate extend from the second surface into the second cover plate.
- the recesses in the second cover plate are thus arranged within the second cover plate.
- the first cover plate has a recess in which the connecting element is received, wherein the second cover plate has a recess in which the connecting element is received.
- the recesses can be millings, for example.
- several recesses are provided on the first cover plate.
- several recesses are also provided on the second cover plate.
- connecting elements are provided, the connecting elements having different thicknesses.
- connecting elements can also have identical thicknesses.
- the number of connecting elements is arbitrary.
- the connecting element is pinned to the first cover plate and to the second cover plate using pins.
- holes are made in the first cover plate, in the second cover plate and in the connecting element, into which the pins can be pressed or hammered.
- the holes can have a conical or tapered geometry. Accordingly, the pins can also have a conical or conical geometry.
- the pins can be made of stainless steel, for example.
- the weld covers the pins.
- the holes in which the pins are accommodated are welded or over-welded using the weld seam. This reliably prevents moisture from penetrating into the holes in the cover plates.
- the pins are conical. Accordingly, the holes in which the pins are received can also be conical.
- the holes can be drilled into the cover plates of the two heat exchanger block modules using a conical or tapered drill.
- the pins can, for example, have a taper of 1°.
- the recess in the first cover plate is incorporated into the first cover plate using a separating manufacturing process and/or a forming manufacturing process.
- the recess in the second cover plate is incorporated into the second cover plate using a separating manufacturing process and/or a forming manufacturing process.
- separating manufacturing processes material is removed.
- material is deformed.
- abrasive manufacturing processes such as milling or eroding, are used as separating manufacturing processes.
- Forming manufacturing processes used include pressing, rolling or forging.
- the first cover plate has hook sections, the second cover plate having hooking sections corresponding to the hook sections, and the hook sections engaging in a form-fitting manner in the hooking sections.
- the hook sections preferably extend out of the first cover plate in the direction of the second cover plate.
- the hook sections can be inserted laterally into the hooking sections or hooked into the hooking sections from above.
- wedge elements can be pressed or hammered into the hooking sections, which wedge the hook sections in the hooking sections.
- the wedge elements are strip-shaped.
- the wedge elements have a wedge shape.
- the first cover plate has a
- the engagement section of the first cover plate and the engagement section of the second cover plate can, for example, be millings which are introduced into the respective cover plate.
- the engagement section of the first cover plate and the engagement section of the second cover plate each have a T-shaped geometry.
- the connecting element has a double-T-shaped cross section or a bone-shaped cross section.
- the connecting element is conical.
- the connecting element tapers starting from a first end section in the direction of a second end section.
- the connecting element has the aforementioned double-T-shaped or bone-shaped cross-sectional geometry.
- a method for producing such a plate heat exchanger includes the following steps: a) providing a first heat exchanger block module and a second heat exchanger block module, b) connecting the first heat exchanger block module and the second heat exchanger block module to one another using a positive connection, and c) connecting the first heat exchanger block module and the second heat exchanger block module to one another using a Weld seam, so that the positive connection is at least partially covered by the weld seam.
- step a) a first cover plate of the first heat exchanger block module and a second cover plate of the second heat exchanger block module are connected to one another in a form-fitting manner using a connecting element, wherein in step a) a recess in which the connecting element is received is attached to the first cover plate , and where on the second cover plate one Recess in which the connecting element is received is attached.
- Providing the first heat exchanger block module and the second heat exchanger block module in step a) may include producing the first heat exchanger block module and/or the second heat exchanger block module, in particular soldering heat exchange elements, separating plates and cover plates. Furthermore, the provision of the heat exchanger block modules can also include the introduction of engagement sections and/or recesses on the cover plates.
- the weld seam is applied after the first heat exchanger block module and the second heat exchanger block module have been positively connected to one another. In particular, the weld seam can be guided over the positive connection.
- the weld seam is preferably stress-free or stress-free.
- step b) a first cover plate of the first heat exchanger block module and a second cover plate of the second heat exchanger block module are connected to one another in a form-fitting manner using a connecting element.
- the connecting element is first connected in a form-fitting manner to the first cover plate of the first heat exchanger block module.
- the connecting element is then positively connected to the second cover plate of the second heat exchanger block module. This means that the positive connection between the first heat exchanger block module and the second heat exchanger block module takes place with the help of the connecting element.
- step a) a recess in which the connecting element is received is made on the first cover plate, with a recess in which the connecting element is received on the second cover plate.
- the recesses can be provided as cutouts on the first cover plate and on the second cover plate. Alternatively, the recesses can also be created using an erosion process or the like. According to a further embodiment, in step b), holes are made in the first cover plate, in the second cover plate and in the connecting element, the first cover plate, the second cover plate and the connecting element being pinned together with the aid of pins inserted into the holes.
- the connecting element is first inserted into one of the recesses in the first cover plate, and the holes are made in the first cover plate and the connecting element.
- a cone-shaped drill can be used for this.
- the pins are then pressed in or driven in to connect the connecting element to the first cover plate.
- the second heat exchanger block module with the second cover plate is then lowered onto the first cover plate, so that the connecting element is received in one of the recesses in the second cover plate.
- the second cover plate and the connecting element are then provided with holes into which pins are also inserted. The pins are then welded shut using the weld seam.
- the recess in the first cover plate is machined into the first cover plate using a separating manufacturing process and/or a forming manufacturing process.
- the recess in the second cover plate is incorporated into the second cover plate using a separating manufacturing process and/or a forming manufacturing process.
- Fig. 1 shows a schematic perspective view of an embodiment of a plate heat exchanger
- FIG. 2 shows a schematic perspective view of an embodiment of a heat exchanger block for the plate heat exchanger according to FIG. 1;
- FIG. 3 shows a schematic side view of a further embodiment of a heat exchanger block for the plate heat exchanger according to FIG. 1;
- Fig. 4 shows a schematic sectional view of the heat exchanger block according to section line IV-IV of Fig. 3;
- Fig. 5 shows the detailed view V according to Fig. 3;
- Fig. 6 shows a schematic perspective view of the plate heat exchanger according to Fig. 3;
- FIG. 7 shows a further schematic perspective view of the plate heat exchanger according to Fig. 3
- FIG. 8 shows a schematic perspective view of a further embodiment of a heat exchanger block for the plate heat exchanger according to FIG. 1;
- Fig. 9 shows a further schematic perspective view of the plate heat exchanger according to Fig. 8.
- FIG. 10 shows a schematic perspective view of a further embodiment of a heat exchanger block for the plate heat exchanger according to FIG. 1;
- Fig. 11 shows a further schematic perspective view of the heat exchanger block according to Fig. 10;
- FIG. 12 shows a schematic detailed view of a further embodiment of a heat exchanger block for the plate heat exchanger according to FIG. 1;
- Fig. 13 shows a schematic top view of an embodiment of a cover plate for the heat exchanger block according to Fig. 12;
- Fig. 14 shows a schematic top view of a further embodiment of a cover plate for the heat exchanger block according to Fig. 12;
- Fig. 15 shows a further schematic detailed view of the heat exchanger block according to Fig. 12;
- Fig. 16 shows a schematic exploded view of the heat exchanger block according to Fig. 12;
- FIG. 17 shows a schematic exploded detail view of a further embodiment of a heat exchanger block for the plate heat exchanger according to FIG. 1;
- FIG. 18 shows a schematic block diagram of an embodiment of a method for producing the plate heat exchanger according to FIG. 1.
- identical or functionally identical elements have been given the same reference numbers unless otherwise stated.
- FIG. 1 shows a schematic perspective view of an embodiment of a plate heat exchanger or plate heat exchanger 1.
- FIG. 2 shows a schematic perspective view of an embodiment of a heat exchanger block 2 for the plate heat exchanger 1 according to FIG Referenced.
- the plate heat exchanger 1 With the help of the plate heat exchanger 1 shown in FIG. 1, heat exchange between several different fluids A to E can be realized. Fluids A to E can also be referred to as process media or media.
- the plate heat exchanger 1 is in particular a Plate Fin Heat Exchanger (PFHE) or can be referred to as such.
- PFHE Plate Fin Heat Exchanger
- the plate heat exchanger 1 is preferably constructed from components that are made of aluminum and soldered, in particular hard-soldered, together.
- the plate heat exchanger 1 can therefore also be referred to as a brazed aluminum plate heat exchanger.
- the heat exchanger block 2 has a cuboid or block-shaped structure and includes a large number of passages or heat exchange elements 3 as well as a large number of separating plates 4.
- the heat exchange elements 3 are so-called fins, in particular so-called heat transfer fins, or can be referred to as fins.
- the heat exchange elements 3 can be designed as corrugated or ribbed sheets, for example as aluminum sheets.
- the separating plates 4 are separating plates or can be referred to as separating plates.
- the separating plates 4 can also be made of aluminum.
- the number of heat exchange elements 3 and the number of separating plates 4 is arbitrary.
- the heat exchanger block 2 is assigned a coordinate system with a first spatial direction or width direction x, a second spatial direction or height direction y and a third spatial direction or depth direction z.
- the directions x, y, z are oriented perpendicular to each other.
- the width direction x can also be referred to as the x direction of the heat exchanger block 2.
- the height direction y can also be written as y- Direction of the heat exchanger block 2 can be referred to.
- the depth direction z can also be referred to as the z direction of the heat exchanger block 2.
- the heat exchange elements 3 and the partition plates 4 are arranged alternately. This means that a separating plate 4 is positioned between two heat exchange elements 3 and a heat exchange element 3 is positioned between two separating plates 4.
- the heat exchange elements 3 and the separating plates 4 can be cohesively connected to one another. In cohesive connections, the connection partners are held together by atomic or molecular forces. Cohesive connections are non-detachable connections that can only be separated from one another by destroying the connecting means and/or the connecting partners.
- the heat exchange elements 3 and the separating plates 4 can be soldered, in particular hard-soldered, together.
- the heat exchanger block 2 further comprises cover plates 5, 6, between which the plurality of heat exchange elements 3 and the plurality of separating plates 4 are arranged.
- a first cover plate 5 and a second cover plate 6 are provided.
- the cover plates 5, 6 can be constructed identically to the separating plates 4.
- the cover plates 5, 6 can have a thickness of, for example, 5 mm.
- the cover plates 5, 6 preferably have no solder plating.
- the separating plates 4 preferably have a thickness of 1 to 2 mm.
- the cover plates 5, 6 have solder plating on both sides.
- the cover plates 5, 6 are positioned on the outside on an outermost heat exchange element 3 and close the heat exchanger block 2 to the front and back in the orientation of FIGS. 1 and 2.
- the heat exchanger block 2 includes so-called sidebars or edge strips 7, 8, which laterally limit the heat exchange elements 3.
- the edge strips 7, 8 can be materially connected to the separating plates 4 and/or the heat exchange elements 3, for example soldered, in particular hard-soldered.
- the previously mentioned components of the heat exchanger block 2 are made, for example, from the material 3003 (AIMnICu).
- the heat exchanger block 2 comprises several, in particular six, surfaces or outer surfaces 26, of which only one is provided with a reference number in FIG.
- the connection devices 9 to 18 are each welded to one of the outer surfaces 26.
- the connection devices 9 to 11 can be provided on the outer surface 26 provided with a reference number in FIG. 2.
- FIG. 3 shows a schematic side view of an embodiment of a heat exchanger block 2A.
- 4 shows a schematic sectional view of the heat exchanger block 2A according to section line IV-IV of FIG. 3. Reference will be made to FIGS. 3 and 4 simultaneously.
- Each heat exchanger block module 28, 29 comprises two cover plates 5, 6 as mentioned above, between which an active area S with a plurality of alternately arranged heat exchange elements 3 and separating plates 4 is arranged.
- “Active” in this context means in particular that the active area S can be flowed through by the fluids A to E for heat exchange during operation of the plate heat exchanger 1.
- cover plates 5, 6 of the two heat exchanger block modules 28, 29 are also welded together.
- a weld seam 30 extending along the second spatial direction y is provided.
- the weld 30 can completely revolve around the heat exchanger block 2A.
- the weld seam 30 preferably does not serve to transmit force between the two heat exchanger block modules 28, 29, but rather only to provide a fluid-tight seal between the heat exchanger block modules 28, 29.
- Fluid-tight can mean both gas-tight and liquid-tight.
- the weld seam 30 is at least partially covered by one of the connection devices 9 to 18. In particular in the area of the connection devices 9 to 18, the fluid-tight seal using the weld seam 30 is required.
- FIG. 5 shows the detailed view V according to Fig. 3.
- Fig. 6 shows a further schematic perspective view of the heat exchanger block 2A.
- Fig. 7 shows another schematic perspective view of the heat exchanger block 2A. Reference will now be made to FIGS. 5 to 7 at the same time.
- FIG. 1 only the two cover plates 5, 6 of the two heat exchanger block modules 28, 29 facing each other are shown in FIG.
- the cover plates 5, 6 lie against one another and are connected to one another in a form-fitting manner.
- the heat exchanger block modules 28, 29 are thus positively connected to one another via their cover plates 5, 6.
- the first cover plate 5 of the first heat exchanger block module 28 has hook sections 31, 32.
- the number of hook sections 31, 32 is basically arbitrary. A plurality of such hook sections 31, 32 are preferably provided, which are placed evenly spaced apart from one another along the second spatial direction y.
- the hook sections 31, 32 extend along the first spatial direction x over an entire width of the first heat exchanger block module 28.
- the hook sections 31, 32 are conical when viewed along the width of the first heat exchanger block module 28.
- the second cover plate 6 of the second heat exchanger block module 29 has hooking sections 33, 34 corresponding to the hook sections 31, 32, into which the hook sections 31, 32 can engage in order to connect the heat exchanger block modules 28, 29 to one another in a form-fitting manner.
- the hooking sections 33, 34 are designed as cutouts or grooves made in the second cover plate 6 of the second heat exchanger block module 29.
- the hook sections 31, 32 can be along the first spatial direction x are inserted laterally into the hooking sections 33, 34. Alternatively, the hook sections 31, 32 can also be threaded into the hooking sections 33, 34 from the front along the third spatial direction z.
- the hooking sections 33, 34 are conical when viewed along a width of the second heat exchanger block module 29.
- a strip-shaped wedge element 35, 36 (hatched) is provided between the hook sections 31, 32 and the hooking sections 33, 34.
- a pair of such wedge elements 35, 36 is assigned to each pair of hook sections 31, 32 and hooking sections 33, 34.
- the wedge elements 35, 36 are accommodated in the hooking sections 33, 34. With the help of the wedge elements 35, 36, the hook sections 31, 32 are wedged or clamped in the hooking sections 33, 34.
- the wedge elements 35, 36 are wedge-shaped and taper starting from the outer surfaces 26 towards a center of the heat exchanger block 2A. Two wedge elements 35, 36 are accommodated in each hooking section 33, 34, which are driven into the hooking sections 33, 34 from opposite sides of the heat exchanger block 2A.
- Connecting the heat exchanger block modules 28, 29 is carried out as follows. First, the two cover plates 5, 6 of the heat exchanger block modules 28, 29 are positioned relative to one another. The heat exchanger block modules 28, 29 are hooked into one another. For this purpose, the hook sections 31, 32 are hooked or threaded into the hooking sections 33, 34. With the help of the wedge elements 35, 36, which are driven into the hooking sections 33, 34 from two sides of the heat exchanger block 2A along the first spatial direction x and against the first spatial direction x, the heat exchanger block modules 28, 29 are locked together. The weld seam 30 is then produced, which covers the hook sections 31, 32, the hooking sections 33, 34 and the wedge elements 35, 36.
- FIG. 8 shows a schematic perspective view of a further embodiment of a heat exchanger block 2B.
- Fig. 9 shows another schematic perspective view of the heat exchanger block 2B.
- FIGS. 8 and 9 show two heat exchanger block modules 28, 29 with cover plates 5, 6 on both sides.
- strip-shaped engagement sections 37, 38 are also provided on the first cover plate 5 of the first heat exchanger block module 28, strip-shaped engagement sections 37, 38 are provided, only two of which are provided with a reference number in FIG.
- strip-shaped counter-engagement sections 39, 40 corresponding to the engagement sections 37, 38 are provided.
- the engagement sections 37, 38 and the counter-engagement sections 39, 40 engage one another in such a way that a counter-engagement section 39, 40 is arranged between two engagement sections 37, 38 and vice versa.
- the engagement sections 37, 38 and the counter-engagement sections 39, 40 each have a plurality of bores 41, 42, only two of which are provided with a reference number.
- Bolts or pins 43, 44 are accommodated in the bores 41, 42 and are inserted into the bores 41, 42 from two sides of the heat exchanger block 2B. With the help of the pins 43, 44, the heat exchanger block modules 28, 29 are thus positively connected to one another.
- the engagement sections 37, 38 and the counter-engagement sections 39, 40 are first formed on their cover plates 5, 6. This can be done, for example, using a milling process.
- the cover plates 5, 6 are aligned with one another so that the bores 41, 42 are aligned.
- the cover plates 5, 6 are then locked together using the pins 43, 44.
- a press fit can be achieved by cooling the pins 43, 44 beforehand.
- a weld seam 30 as mentioned above can then be welded over the pins 43, 44.
- FIG. 10 shows a schematic perspective view of a further embodiment of a heat exchanger block 2C.
- Fig. 11 shows another schematic perspective view of the heat exchanger block 2C. Reference is made to FIGS. 10 and 11 simultaneously below.
- the heat exchanger block 20 includes heat exchanger block modules as mentioned above
- Each cover plate 5, 6 has an engagement section 45, 46.
- a first engagement section 45 is provided on the first cover plate 5 of the first heat exchanger block module 28 and a second engagement section 46 is provided on the second cover plate 6 of the second heat exchanger block module 29.
- the first engagement section 45 has a T-shaped geometry. Accordingly, the second engagement section 46 also has a T-shaped geometry.
- the two engagement sections 45, 46 together form a double T shape.
- the engagement sections 45, 46 can be grooves that are milled into the cover plates 5, 6.
- the engagement sections 45, 46 extend through the entire heat exchanger block 2.
- the engagement sections 45, 46 can be machined with a suitable milling tool up to a depth of 80 mm.
- the engagement sections 45, 46 can taper in a wedge shape.
- the engagement sections 45, 46 can also only partially extend into the heat exchanger block 2 like a blind hole. Any number of engagement sections 45, 46 may be provided, which are arranged evenly spaced apart from one another.
- a connecting element 47 is accommodated in the engagement sections 45, 46.
- the connecting element 47 has a double-T-shaped or bone-shaped cross section.
- the connecting element 47 simultaneously engages in the engagement sections 45, 46 in order to connect the cover plates 5, 6 of the heat exchanger block modules 28, 29 to one another in a form-fitting manner.
- the number of connecting elements 47 is arbitrary.
- the connecting element 47 can be conical or tapered at least in sections.
- engagement sections 45, 46 are first introduced into the cover plates 5, 6 of the heat exchanger block modules 28, 29. This can be done using a milling process.
- the engagement sections 45, 46 can also be manufactured using an erosion process or using a diamond-coated form file.
- the cover plates 5, 6 are then aligned with one another and the connecting elements 47 are hammered or pressed into the engagement sections 45, 46.
- the connecting elements 47 are then welded over and thus covered with the help of the weld seam 30 (not shown).
- Fig. 12 shows a schematic view of a further embodiment of a heat exchanger block 2D.
- Fig. 13 shows a schematic top view of an embodiment of a first cover plate 5 as mentioned above.
- Fig. 14 shows a schematic plan view of an embodiment of a second cover plate 6 as mentioned above.
- Fig. 15 shows a further schematic view of the heat exchanger block 2D.
- Fig. 16 shows a schematic exploded view of the heat exchanger block 2D. Reference will now be made to FIGS. 12 to 16 at the same time.
- the heat exchanger block 2D comprises heat exchanger block modules 28, 29 with cover plates 5, 6 facing one another. Only the two cover plates 5, 6 are shown in FIGS. 12 to 16.
- the cover plates 5, 6 can have a thickness d5, d6 of, for example, 5 mm.
- the first cover plate 5 and/or the second cover plate 6 preferably each have a thickness d5, d6 of 8 to 18 mm, preferably of 10 to 16 mm, more preferably of 12 to 14 mm.
- the cover plates 5, 6 have a thickness d5, d6 of at least 12 mm.
- Each cover plate 5, 6 comprises a plurality of grooves or recesses 48 to 53.
- the first cover plate 5 is assigned the recesses 48 to 50 and the second cover plate 6 is assigned the recesses 51 to 53.
- the recesses 48 to 53 can be rectangular grooves that are milled into the respective cover plate 5, 6.
- the number of recesses 48 to 53 is arbitrary.
- the cover plates 5, 6 are aligned such that the recesses 48 to 50 and the recesses 51 to 53 are aligned.
- the recesses 48 to 50 of the first cover plate 5 are connected to one another with the aid of bores 54 to 56 oriented perpendicular to the recesses 48 to 50.
- the number of holes 54 to 56 is arbitrary.
- the holes 54 to 56 are arranged evenly spaced apart from one another.
- the holes 54 to 56 are conical.
- the recesses 51 to 53 of the second cover plate 6 are with the help of holes 57 to 59 oriented perpendicular to the recesses 51 to 53 connected with each other.
- the number of holes 57 to 59 is arbitrary.
- the holes 57 to 59 are arranged evenly spaced apart from one another.
- the holes 57 to 59 are also conical.
- Connecting elements 60 are accommodated in the recesses 48 to 53.
- the connecting elements 60 extend from the recesses 48 to 50 in the first cover plate 5 into the recesses 51 to 53 in the second cover plate 6.
- the number of connecting elements 60 is arbitrary.
- Each connecting element 60 includes openings or bores 61 to 63.
- the bores 61 to 63 and the bores 57 to 59 are arranged in alignment.
- Bolts or pins 64 to 66 are accommodated in the holes 57 to 59, 61 to 63.
- the pins 64 to 66 are conical.
- Each connecting element 60 has a thickness d60.
- the connecting elements 60 can all have the same thickness d60. Alternatively, the connecting elements 60 can also have different thicknesses d60.
- the bores 54 to 59, 61 to 63 are drilled through the cover plates 5 using a conical drill (1:50 or 1:100). 6 and the connecting elements 60 drilled.
- the conical pins 64 to 66 are hammered in holes 54 to 59, 61 to 63.
- the holes 54 to 59 are welded shut and then the weld seam 30 is carried out between the heat exchanger block modules 28, 29.
- Fig. 17 shows a schematic exploded detail view of a further embodiment of a heat exchanger block 2E.
- the connecting element 70 is rotatable together with the shaft 69 and can be moved from an unfolded state (solid lines) to a folded state (dashed lines).
- the connecting element 70 is provided with the reference number 70 '.
- the bore 72 which is provided with the reference number 72 'in the folded state.
- the connecting element 70 protrudes beyond the first cover plate 5.
- the connecting element 70 is completely accommodated within the respective recess 48 to 50.
- the movement of the connecting element 70 from the unfolded state to the folded state and vice versa is indicated by a double arrow 73.
- the heat exchanger block 2E is installed as explained below. First, the recesses 48 to 53 are made in the cover plates 5, 6.
- the recesses 48 to 50 are made into the first cover plate 5 using a separating manufacturing process and/or a forming manufacturing process. in particular introduced or incorporated into the first surface 74. Accordingly, the recesses 51 to 53 are also introduced or incorporated into the second cover plate 6, in particular into the second surface 75, with the aid of a separating manufacturing process and/or a forming manufacturing process.
- separating manufacturing processes material is removed.
- forming manufacturing processes material is deformed.
- abrasive manufacturing processes such as milling or eroding, are used as separating manufacturing processes. Forming manufacturing processes used include pressing, rolling or forging. The same applies to the heat exchanger block 2E according to FIG. 17.
- the method is particularly suitable for producing the heat exchanger block 2A, 2B, 2C, 2D, 2E.
- the first heat exchanger block module 28 and the second heat exchanger block module 29 are provided in a step S1.
- the provision can include producing the heat exchanger block modules 28, 29, in particular soldering the heat exchange elements 3 and the separating plates 4.
- step S2 the first heat exchanger block module 28 and the second heat exchanger block module 29 are connected to one another using a positive connection.
- a step S3 of the method includes connecting the first heat exchanger block module 28 and the second heat exchanger block module 29 to one another using the weld seam 30, so that the positive connection is covered at least in sections by the weld seam 30.
- step S2 the first cover plate 5 of the first heat exchanger block module 28 and the second cover plate 6 of the second heat exchanger block module 29 are connected to one another in a form-fitting manner using the respective connecting element 47, 60, 70.
- step S1 several recesses 48 to 50 are made on the first cover plate 5, in each of which a connecting element 60, 70 is accommodated, with recesses 51 to 53 also being attached to the second cover plate 6, in which the respective connecting element 60, 70 is also accommodated.
- step S2 holes 54 to 59, 61 to 63 are made in the first cover plate 5, in the second cover plate 6 and in the respective connecting element 60, with the first cover plate 5, the second cover plate 6 and the connecting element 60 using pins 64 to 66 are pinned together.
- the cover plates 5, 6 and the connecting element 60 or the connecting elements 60 are connected to one another in a materially bonded manner.
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)
- Details Of Heat-Exchange And Heat-Transfer (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| EP22020403 | 2022-08-19 | ||
| PCT/EP2023/025375 WO2024037734A1 (de) | 2022-08-19 | 2023-08-11 | Plattenwärmetauscher und verfahren |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| EP4573337A1 true EP4573337A1 (de) | 2025-06-25 |
Family
ID=83005967
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP23757515.4A Pending EP4573337A1 (de) | 2022-08-19 | 2023-08-11 | Plattenwärmetauscher und verfahren |
Country Status (4)
| Country | Link |
|---|---|
| EP (1) | EP4573337A1 (de) |
| JP (1) | JP2025526061A (de) |
| CN (1) | CN119630936A (de) |
| WO (1) | WO2024037734A1 (de) |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7147046B2 (en) * | 2003-11-27 | 2006-12-12 | Denso Corporation | Heat exchanger of a multiple type |
| DE102012006477A1 (de) * | 2012-03-29 | 2013-10-02 | Linde Aktiengesellschaft | Plattenwärmetauscher mit mehreren Modulen verbunden mit Profilen |
| EP2708840A1 (de) * | 2012-09-18 | 2014-03-19 | Linde Aktiengesellschaft | Plattenwärmetauscher mit einem insbesondere T-förmigen Verbindungselement |
| DE102014006331A1 (de) * | 2014-04-30 | 2015-11-05 | Linde Aktiengesellschaft | Plattenwärmetauscher und Verfahren zur Herstellung eines Plattenwärmetauschers |
| DE102020007618A1 (de) * | 2020-01-30 | 2021-08-05 | Linde Gmbh | Verfahren zur Herstellung eines Rippen-Platten-Wärmetauschers |
-
2023
- 2023-08-11 CN CN202380056995.0A patent/CN119630936A/zh active Pending
- 2023-08-11 EP EP23757515.4A patent/EP4573337A1/de active Pending
- 2023-08-11 WO PCT/EP2023/025375 patent/WO2024037734A1/de not_active Ceased
- 2023-08-11 JP JP2025507451A patent/JP2025526061A/ja active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| JP2025526061A (ja) | 2025-08-07 |
| CN119630936A (zh) | 2025-03-14 |
| WO2024037734A1 (de) | 2024-02-22 |
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