Classifications

• • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
  • F24—HEATING; RANGES; VENTILATING
  • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
  • F24F3/00—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems
  • F24F3/12—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems characterised by the treatment of the air otherwise than by heating and cooling
  • F24F3/14—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems characterised by the treatment of the air otherwise than by heating and cooling by humidification; by dehumidification
  • F24F3/147—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems characterised by the treatment of the air otherwise than by heating and cooling by humidification; by dehumidification with both heat and humidity transfer between supplied and exhausted air
• • 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
• • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
  • F28—HEAT EXCHANGE IN GENERAL
  • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
  • F28F21/00—Constructions of heat-exchange apparatus characterised by the selection of particular materials
  • F28F21/06—Constructions of heat-exchange apparatus characterised by the selection of particular materials of plastics material
• • 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
  • F28D17/00—Regenerative heat-exchange apparatus in which a stationary intermediate heat-transfer medium or body is contacted successively by each heat-exchange medium, e.g. using granular particles
  • F28D17/02—Regenerative heat-exchange apparatus in which a stationary intermediate heat-transfer medium or body is contacted successively by each heat-exchange medium, e.g. using granular particles using rigid bodies, e.g. of porous material
• • 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
  • F28D19/00—Regenerative heat-exchange apparatus in which the intermediate heat-transfer medium or body is moved successively into contact with each heat-exchange medium
  • F28D19/04—Regenerative heat-exchange apparatus in which the intermediate heat-transfer medium or body is moved successively into contact with each heat-exchange medium using rigid bodies, e.g. mounted on a movable carrier
• • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
  • F28—HEAT EXCHANGE IN GENERAL
  • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
  • F28F13/00—Arrangements for modifying heat-transfer, e.g. increasing, decreasing
  • F28F13/003—Arrangements for modifying heat-transfer, e.g. increasing, decreasing by using permeable mass, perforated or porous materials

Definitions

• the invention relates to a heat and / or moisture exchange element, e.g. on a heat and / or moisture exchange plate for plate heat and / or
• moisture exchanger a storage mass layer for rotary heat and / or moisture exchanger ud.dgl ..
• Such knownplaceelemen te known from the prior art are usually formed of a suitable material which, as far as the exchange element for a rotary heat and / or moisture exchanger is provided at one or both opposed and fluid streams from set surfaces provided with a coating is, wherein this coating is adapted to the particular requirement profile, and, as far as the replacement element is designed as a heat and / or moisture exchange plate for plate heat and / or moisture exchanger, either - when moisture transfer - designed as a membrane, or so far exclusively Heat is to be transmitted - massively provided.
• a material of the basic element of the heat and / or moisture exchange element is usually a metallic material, such as aluminum, or provided with respect to its required in the relevant technical field here relevant properties with a metallic material ver comparable plastic.
• Moisture exchanger a storage mass layer for rotary heat and / or moisture exchanger ud.dgl. to create a higher and more precisely adjustable efficiency in the transmission of thermal energy and / or humidity - without noticeable increase in the technical-design effort for its production.
• a heat and / or moisture exchange plate according to the invention should be mechanically stable and yet permeable to moisture.
• the heat and / or moisture exchange element formed from a perforated by a plurality of voids structure and designed for water or water vapor selectively permeable and / or storable.
• the mechanical and the requirements towards ⁇ clearly identified the thermal stability of heat and / or moisture exchange element can hereby be considered to a previously unknown extent.
• the material matrix of the heat and / or moisture exchange element can be produced with the desired properties.
• the thermal for the transmission of energy and / or humidity ent ⁇ distinctive characteristics and requirements for the heat and / or moisture exchange element can be taken into account in the preparation of the structure.
• the heat and / or moisture ⁇ exchange element according to the invention is sintered from a suitable material.
• a suitably suitable material can be selected and / or assembled.
• the permeability of the heat and / or moisture exchange element according to the invention which is selective for water or water vapor, can be realized by means of a suitable polymer material.
• the heat and / or moisture exchange element of the invention may comprise a layer of this polymer material, alternatively, it is possible that the inventive heat and / or moisture exchange element in a
• Layer area is impregnated with the appropriate polymer material.
• a suitable material for the material matrix or the broken through a plurality of cavities structure a suitable metal material, an artificial or a ceramic material may be provided.
• the moisture storage capability of the heat and / or moisture exchange element can be realized by means of a desiccant, e.g. by means of lithium chloride, silica gel, zeolite or the like, which is incorporated in the material matrix or in the structure which is interrupted by a large number of voids.
• a desiccant e.g. by means of lithium chloride, silica gel, zeolite or the like, which is incorporated in the material matrix or in the structure which is interrupted by a large number of voids.
• the material matrix may be made of a polyolefin, in particular of a sinterable polyolefin. It has proved to be particularly advantageous if the material matrix or the structure which has been broken through by a large number of voids is produced from a medium molecular weight polyolefin.
• the structure which has been perforated by a multiplicity of voids can be produced from a polyethylene.
• a material matrix sintered from a medium molecular weight polyethylene powder has proved to be particularly advantageous.
• the material matrix of the heat and / or moisture exchange element from polypropylene or polyvinyl chloride.
• metal compounds in particular metal oxides and metal carbides, come as a material for the material matrix of the heat and / or moisture exchange element in question.
• the heat and / or moisture exchange element can be made hydrophilic after, during or before the preparation of its structure, wherein in the preparation of its structure preceding hydrophilic adjustment already required for the preparation of its structure raw materials are made hydrophilic.
• hydrophilic adjustment of the already produced material matrix or structure of the heat and / or moisture exchange element according to the invention can be effected by means of an immersion bath, a spraying process, an application and / or a Entry of suitable materials, such as surfactants, be realized.
• a medium molecular weight polyethylene powder has been found, which is preferably applied prior to sintering with an additive having a hydrophilic setting of the heat and / or Moisture exchange element causes.
• the plastic Hostalen® GHR 8110 may be made of the material Hostapur® SAS 60F, which is used for hydrophilic adjustment.
• the sintered material matrix of the heat and / or moisture exchange element has a specific gravity of about 0.5 ⁇ 0.1, preferably from 0.507 to 0.522 and in particular from 0.517 g / cm 3 .
• the pore content of the sintered material matrix is according to an advantageous embodiment of the invention about 34 to 44, preferably 38.6 to 40.1, and in particular 39.1 vol .-%.
• the sintered material matrix advantageously has an average pore diameter of 25 to 35, preferably 30 ⁇ on.
• the tensile strength of the sintered material matrix is preferably greater than 2.0 N / mm 2 and is preferably between 2.22 to 2.70, in particular 2.45 N / mm 2 .
• this heat and / or moisture exchange element expediently has an outer spatial structure, for example the outer spatial structure of a heat and / or moisture exchange plate forellestown- and / or-moisture exchanger or the outer spatial structure of an example corrugated memory mass layer of a Rotationseben- and / or
• Moisture exchanger into which the heat and / or moisture exchange element by means of a suitable deformation process, e.g. a deep-drawing process with vacuum or compressed air, a mold sintering, an embossing or - in the case of a metallic material - a cold stamping, can be brought.
• a suitable deformation process e.g. a deep-drawing process with vacuum or compressed air, a mold sintering, an embossing or - in the case of a metallic material - a cold stamping
• the heat and / or moisture exchange element according to the invention or the heat and / or moisture exchange plate according to the invention can be used for a countercurrent heat and / or moisture exchanger.
• the heat and / or moisture exchange element comprises a base forming the openwork structure and having filler introduced into the voids of the openwork structure of the base
• the mechanical and thermal requirements of the heat and / or moisture exchange element may be met be taken into account by a corresponding embodiment of the basic part.
• the base can be made of material and with regard to the design of the perforated structure.
• the properties and requirements for the transfer of thermal energy and / or humidity Heat and / or moisture exchange elements may be satisfied by the selection of a suitable filler.
• the structure of the base which is perforated by a large number of voids, is defined by a fabric, e.g. metal filaments, a nonwoven, e.g. made of metal fibers, a knitted fabric, a fine fabric or a sintered material.
• the base part of the heat and / or moisture exchange element can be designed as a lattice structure.
• Such lattice structures can be produced in high quality and in an identical embodiment with a comparatively small technical and constructive effort.
• the lattice structure of the base part can be formed, for example, from a suitable metal material or a suitable plastic.
• the base part can also be formed from at least one grid mat.
• Such a polymer material can fill the voids of the perforated structure of the base part with a comparatively small procedural outlay by impregnating the base part with this polymer material.
• the polymer material may, in particular, be a suitable Nexar® polymer material from Kraton, which, in terms of its permeability to e.g. Water is almost arbitrarily adjustable and, moreover, preferably has a high wet strength.
• this heat and / or moisture exchange element expediently has an external spatial structure, eg the outer spatial structure of a heat and / or moisture exchange plate forellesuza and / or moisture exchanger or the outer spatial structure of an example corrugated memory mass layer of a Rotationseben- and / or
• Moisture exchanger into which the heat and / or moisture exchange element by means of a suitable deformation process, e.g. can be brought by means of an embossing.
• the heat and / or moisture exchange element according to the invention or the heat and / or moisture exchange plate according to the invention can be used for a countercurrent heat and / or moisture exchanger.
• the deformation process for example the embossing, takes place for producing the outer spatial structure of the heat and / or moisture exchange element, before the filler, for example the suitable polymer material, into the Base part of the heat and / or moisture exchange element is introduced.
• a heat and / or moisture exchange element according to the invention which serves as a heat and / or moisture exchange plate for a plate heat and / or moisture exchanger, in particular a countercurrent heat and / or moisture exchanger, or as a storage mass layer for a rotary heat and / or moisture exchanger can, is formed from a perforated by a plurality of voids structure and sintered from a plastic.
• the starting material for the sintering process is a mixture of a medium molecular weight polyethylene powder.
• This medium molecular weight polyethylene powder is assigned a material mixes, which is to cause a hydrophilic adjustment of the heat and / or moisture exchange element.
• medium molecular weight polyethylene powder e.g. the plastic Hostalen® GHR 8110, as the hydrophilic setting causing material in particular the material Hostapur® SAS 60F, are used.
• the material matrix of the sintered heat and / or moisture exchange element has a specific gravity of between 0.507 and 0.522 g / cm 3 and 0.517 g / cm 3 .
• the pore fraction of the sintered material matrix is between 38.6 and 40.1, preferably 39.1% by volume.
• the average pore diameter of the material matrix is between 25 and 35, preferably about 30 ⁇ .
• the sintered material matrix has a tensile strength of 2.22 to 2.70, in particular of 2.45 N / mm 2 .
• Another embodiment of a heat and / or moisture exchange element according to the invention has a base part and filler.
• the base is formed as a perforated by a plurality of voids structure.
• the filler is introduced into the voids of the openwork structure of the base.
• the openwork structure of the base can be made of a fabric made, for example, of metallic filaments, of a non-woven, e.g. is made of metal fibers, be formed of a knitted fabric, a fine fabric or a sintered material. It is essential for the design of the base part, that this has a plurality of voids or passages, by means of which the structure of the base is broken.
• the base can also be formed as a lattice structure of a suitable metal material or plastic.
• the lattice structure can be designed, for example, from metallic threads.
• the base may have one or more grid mats. Adjacent grid mats can be offset from each other so that the voids of adjacent grid mats are only partially overlapped.
• the adjustment of the fluid permeability and the thermal properties of the heat and / or moisture exchange element is effected by a polymer material which acts as a filler of the heat and / or moisture exchange element.
• a polymer material which acts as a filler of the heat and / or moisture exchange element.
• a suitable Nexar® polymer material from Kraton used which is virtually arbitrarily adjustable in terms of its permeability to eg water and also has a high wet strength.
• This polymer material may be formed as a non-porous selectively permeable membrane having the above-mentioned high wet strength.
• the heat and / or moisture exchange element according to the invention can be provided with an outer spatial structure adapted to the specific requirement profile, e.g. the outer spatial structure of a heat and / or moisture exchange plate for countercurrent heat and / or moisture exchanger or the outer spatial structure of a corrugated storage mass layer of a Rotationseben- and / or
• a deformation process e.g. an imprint, serve.
• This embossing can be done by embossing the base before the polymeric material is incorporated into the base. It is also possible to deform the heat and / or moisture exchange element by performing the deformation process or embossing after the base is impregnated with the filler.

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• Engineering & Computer Science (AREA)
• Mechanical Engineering (AREA)
• General Engineering & Computer Science (AREA)
• Physics & Mathematics (AREA)
• Thermal Sciences (AREA)
• Chemical & Material Sciences (AREA)
• Combustion & Propulsion (AREA)
• Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
• Central Air Conditioning (AREA)

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• 2012
  • 2012-01-14 US US13/979,155 patent/US20140033924A1/en not_active Abandoned
  • 2012-01-14 CA CA2826995A patent/CA2826995A1/fr not_active Abandoned
  • 2012-01-14 WO PCT/EP2012/000146 patent/WO2012107156A1/fr active Application Filing
  • 2012-01-14 EP EP12701670.7A patent/EP2673587A1/fr not_active Withdrawn

Non-Patent Citations (2)

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