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
  • F28D21/0015—Heat and mass exchangers, e.g. with permeable walls

Definitions

• the invention relates to a plate element for a plate heat exchanger.
• Such plate elements are common in a variety of forms and from a variety of different materials.
• the present invention seeks to provide a plate member for a plate heat exchanger available, which can be produced on the one hand with little effort, has a comparatively low weight and yet in addition to the usual heat exchange properties also has excellent enthalpy exchange properties.
• moisture or water vapor should also be transferred or exchanged between different fluid streams.
• a plate element for a plate heat exchanger in which the plate element is an at least two-layer laminate arrangement of a membrane layer, by means of which enthalpy is transferable between two fluid streams separated by the plate element, and at least one carrier layer consisting of a perforated and deformable material consists and means which the plate element a predetermined mechanical strength and a spatial structure rental and these are upright preserved.
• the plate element can be produced with a low cost with the desired properties.
• the membrane layer of the plate element according to the invention can advantageously be designed as a plastic membrane layer.
• the at least one carrier layer of the plate element according to the invention can be formed with relatively little effort as a woven or nonwoven layer, whereby the necessarily perforated structure of the carrier layer is advantageously obtained by the selection of said materials.
• the at least one carrier layer of the plate member is formed of a thermally deformable material.
• this is formed as a three-layer laminate arrangement, with a further carrier layer which is arranged on the side facing away from the first carrier layer side of the membrane layer and by means of the plate member also a predetermined mechanical strength and a spatial structure rental and these are upheld.
• a planar, punctiform, stripy or lattice-shaped connection of each carrier layer to the membrane layer can be realized by material properties of each carrier layer and / or of the membrane layer. In this case, no additional connection means, such as adhesives or the like, are required. Alternatively, however, it is also possible to realize the planar, punctiform, stripy or lattice-like and adhesive connection between the membrane layer of each carrier layer by a binder, preferably by a hot-melt adhesive.
• the nonwoven layers can be advantageously designed from a polyester fleece.
• This polyester fleece should expediently have a weight which is between 20 and 80, preferably about 50 g / m 2 .
• the polyester fleece is hygroscopically adjustable.
• polyester nonwoven having a coating of a zeolite and a binder.
• the enthalpy transmission properties of the plastic membrane layer can be realized with comparatively little effort if the plastic membrane layer is formed from a polymer or polyurethane material.
• the plate elements described above can be folded and welded or glued at their edges, so that they can be joined together to form a plate heat exchanger with extremely low technical design complexity.
• a single deformation step those tools can be used which are also used in plate elements made of materials known from the prior art. Therefore, no elaborate changes etc. of existing production facilities are required.
• an adhesive bond is simultaneously created between each carrier layer and the membrane layer.
• the cost of producing the plate element according to the invention can thus be comparatively low.
• the hygroscopic adjustment of the carrier or nonwoven layers can be realized with comparatively little effort by providing the carrier or nonwoven layers with a coating of a zeolite and a binder by means of a dipping or spraying process.
• Carrier or nonwoven layers is provided, be achieved that in the carrier or nonwoven layers deposited water evenly over the surface of the carrier or
• the single figure shows a schematic diagram of a plate element according to the invention, which can be joined together with other similar plate elements to a plate heat exchanger.
• the plate element 1 shown in the single figure is not to scale in this figure, but only shown in principle.
• Example of the invention of the plate element 1 is formed as a three-layer laminate assembly 1.
• This three-layer laminate arrangement 1 includes a plastic membrane layer 2 arranged centrally in the laminate arrangement 1, a first nonwoven layer 3 arranged in the figure above the plastic membrane layer 2 and a second nonwoven layer 4 arranged in the figure below the plastic membrane layer 2.
• enthalpy can be transferred between two fluid streams not shown in the figure, wherein one of the fluid streams flows above the plate element 1 and the other of the two fluid streams below the plate element 1.
• the plastic membrane layer 2 is formed in the illustrated embodiment of a polyurethane material.
• the first nonwoven layer 3 and the second nonwoven layer 4 are made of a thermally deformable nonwoven material, in the illustrated embodiment of a polyester nonwoven fabric.
• the polyester fleece has a weight of 50 g / m 2 .
• the polyester nonwoven fabric is made hygroscopically adjustable, for which purpose the polyester nonwoven fabric is provided with a coating consisting of a suitable zeolite and a binder.
• the plate member 1 receives a predetermined mechanical strength and a spatial structure. This mechanical strength and spatial structure are maintained for the duration of the groove tion of the plate member in a plate heat exchanger upright.
• a flat adhesive bond is provided between the plastic membrane layer 2 on the one hand and the nonwoven layers 3, 4 on the other hand.
• This can be realized in the embodiment of the plate element 1 shown in the single figure by means of material properties of the nonwoven layers 3, 4 forming polyester fleece and / or by material properties of the plastic membrane layer 2.
• a level three-layer laminate arrangement 1 is first created.
• the plastic membrane layer 2 is placed on the lower nonwoven layer 4 and the upper nonwoven layer 1 is placed on the plastic membrane layer 2.
• both the deformation, ie the creation of a spatial structure for the plate element 1, as well as the surface connection between the plastic membrane layer 2 on the one hand and the two nonwoven layers 3, 4 on the other serves, the plate element 1 created.
• the same tools can be used, which are ver ⁇ applies also in the production of conventional plate elements.
• a maximum temperature is not exceeded, which is 160 degrees C. This will ensure that the plastic membrane layer
• these are provided with a coating of a zeolite and a binder, which coating can be prepared by a dipping or spraying process.

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)
• Laminated Bodies (AREA)

Priority Applications (6)

Applications Claiming Priority (2)

Publications (1)

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Family Applications (1)

Country Status (8)

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Citations (6)

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• 2014
  • 2014-11-24 DE DE102014017362.3A patent/DE102014017362A1/de not_active Withdrawn
• 2015
  • 2015-09-19 US US15/527,927 patent/US20180347914A1/en not_active Abandoned
  • 2015-09-19 CA CA2968596A patent/CA2968596C/en active Active
  • 2015-09-19 WO PCT/EP2015/001863 patent/WO2016082902A1/de not_active Ceased
  • 2015-09-19 DK DK15774855.9T patent/DK3224562T3/da active
  • 2015-09-19 ES ES15774855T patent/ES2903236T3/es active Active
  • 2015-09-19 PL PL15774855T patent/PL3224562T3/pl unknown
  • 2015-09-19 EP EP15774855.9A patent/EP3224562B1/de active Active

Patent Citations (6)

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