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
  • F28D21/00—Heat-exchange apparatus not covered by any of the groups F28D1/00 - F28D20/00
  • F28D21/0001—Recuperative heat exchangers
  • F28D21/0014—Recuperative heat exchangers the heat being recuperated from waste air or from vapors
• • 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
  • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
  • F28F9/00—Casings; Header boxes; Auxiliary supports for elements; Auxiliary members within casings
  • F28F9/02—Header boxes; End plates

Definitions

• WO2020095188A1 published on 14.05.2020 on behalf of the applicant relates to a method for providing a heat exchanger block with a housing.
• the heat exchanger block comprises at least a first outer surface region and a second outer surface region opposite said first outer surface region.
• the housing further comprises at least a first housing portion which covers/engages the first outer surface region of the heat exchanger block and a second housing portion, which is located opposite the first housing portion and covers/engages the second outer surface region of the heat exchanger block.
• the method comprises at least the steps of molding the first housing portion to the first outer surface region and molding the second housing portion to the second outer surface region.
• Plate heat exchangers are known and form a subcategory amongst heat exchangers.
• Plate heat exchangers (PHE) are a specialized design well suited to transfer heat between medium- and low-pressurized fluids.
• Conventional plate heat exchangers are typically formed by multiple metal plates, which define flow paths between each other to transfer heat between at least two fluids. This has a major advantage over other types of heat exchangers, like tubular heat exchangers, in that the fluids are exposed to a much larger surface area because the fluids are spread out over the plates. This facilitates the transfer of heat, and greatly increases the speed of the temperature change between the at least two fluids.
• heat exchange elements made of formable membranes material combinations are used which cannot be processed with conventional welding processes without major adaptation effort, making the processes complicated and inflexible.
• Welding heat exchange elements made of formable membranes is time consuming, because each pair of two aligned plate elements has to be joined individually.
• partial foaming/molding is possible.
• the downside of that method is that a lot of surface area is lost.
• foaming needs additional volume, leading to a greater size of the overall heat exchanger, which is not desired.
• connection element is typically slid such on the outer edges that it is slid at the same time over at least some, or even all of the outer edges of the plate elements of the stack.
• connection element In addition to applying a circumferential bead of adhesive enclosing and sealing the connection element, after arranging the connection element in the region of the first and second inlets and/or in the region of the first and second outlets of the plate elements of the first type and of the second type, the uncovered segments of the outer edges may be sealed by applying an adhesive, in particular a bead of adhesive.
• Figure 5 shows a perspective view on a first variation of the stack 2 according to Figure 4 with the connection element 11 in form of a grid 15, which is slid onto the stack 2. It can be seen that the connection element 11 is slid onto the outer edges 14 in a direction parallel to the outer edges, i.e. in parallel to the direction the outer edges 14 extend.
• the transversal ribs 16 of the connection element 11 and the fluid-guiding rib 24 in the first cross-flow zone 21 and/or the second cross-flow zone 22 are arranged aligned to each other.
• the shown grid 15 comprises a plurality of holding structures 12, which are arranged in parallel to each other.
• Each holding structure 12 defines one recess for encompassing the outer edge 14 of one plate element of the first type 3 and the thereto-aligned outer edge of one plate element of the second type 4.
• the transversal ribs 16 bridging neighboring holding structures 12 are arranged perpendicular to the holding structures 12, thereby forming the grid 15 with rectangular orifices 33.
• the connection element 12 in form of a grid 15 is beneficial for a fast assembly process as well as providing additional stability for the stack 2 of plate elements 3, 4.
• Figure 8 shows a perspective view on the plate heat exchanger being assembled with thereto mounted casing 27.
• the plate heat exchanger 1 is enclosed by assembling the additional casing 27, in the shown variation comprising side plates 29, a top plate 30 and a bottom plate 31.

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)

Applications Claiming Priority (1)

Publications (1)

Family

ID=89977243

Family Applications (1)

Country Status (1)

Citations (6)

• 2025
  • 2025-01-17 EP EP25152542.4A patent/EP4589237A1/fr active Pending

Patent Citations (6)

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