DE102005003543A1 - Humidity/heat-exchange device e.g. plate heat exchanger, useful for keeping the area at moderate temperature and for air-conditioning the area, comprises humidity/heat exchange surface - Google Patents

Humidity/heat-exchange device e.g. plate heat exchanger, useful for keeping the area at moderate temperature and for air-conditioning the area, comprises humidity/heat exchange surface Download PDF

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Publication number
DE102005003543A1
DE102005003543A1 DE102005003543A DE102005003543A DE102005003543A1 DE 102005003543 A1 DE102005003543 A1 DE 102005003543A1 DE 102005003543 A DE102005003543 A DE 102005003543A DE 102005003543 A DE102005003543 A DE 102005003543A DE 102005003543 A1 DE102005003543 A1 DE 102005003543A1
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Germany
Prior art keywords
moisture
heat exchange
zeolite
heat
exchange device
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DE102005003543A
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German (de)
Inventor
Jürgen Dr. Sauer
Thomas Westerdorf
Hans Klingenburg
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Klingenburg GmbH
Nanoscape AG
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Klingenburg GmbH
Nanoscape AG
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Priority to DE102005003543A priority Critical patent/DE102005003543A1/en
Priority to EP06706192A priority patent/EP1842024A1/en
Priority to CNB2006800028814A priority patent/CN100565081C/en
Priority to KR1020077019481A priority patent/KR20070104439A/en
Priority to RU2007132080/06A priority patent/RU2392556C2/en
Priority to PCT/EP2006/000156 priority patent/WO2006079448A1/en
Priority to UAA200709601A priority patent/UA93497C2/en
Priority to JP2007552546A priority patent/JP2008528263A/en
Priority to CA2595318A priority patent/CA2595318C/en
Priority to US11/883,268 priority patent/US20080308262A1/en
Publication of DE102005003543A1 publication Critical patent/DE102005003543A1/en
Priority to NO20074321A priority patent/NO20074321L/en
Withdrawn legal-status Critical Current

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
    • B01J20/02—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material
    • B01J20/10—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material comprising silica or silicate
    • B01J20/16—Alumino-silicates
    • B01J20/18—Synthetic zeolitic molecular sieves
    • B01J20/183—Physical conditioning without chemical treatment, e.g. drying, granulating, coating, irradiation
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F17/00—Removing ice or water from heat-exchange apparatus
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
    • B01D53/02—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by adsorption, e.g. preparative gas chromatography
    • B01D53/04—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by adsorption, e.g. preparative gas chromatography with stationary adsorbents
    • B01D53/0407—Constructional details of adsorbing systems
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
    • B01D53/26—Drying gases or vapours
    • B01D53/261—Drying gases or vapours by adsorption
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
    • B01D53/26—Drying gases or vapours
    • B01D53/28—Selection of materials for use as drying agents
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
    • B01J20/28—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof characterised by their form or physical properties
    • B01J20/28002—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof characterised by their form or physical properties characterised by their physical properties
    • B01J20/28004—Sorbent size or size distribution, e.g. particle size
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
    • B01J20/28—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof characterised by their form or physical properties
    • B01J20/28002—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof characterised by their form or physical properties characterised by their physical properties
    • B01J20/28004—Sorbent size or size distribution, e.g. particle size
    • B01J20/28007—Sorbent size or size distribution, e.g. particle size with size in the range 1-100 nanometers, e.g. nanosized particles, nanofibers, nanotubes, nanowires or the like
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
    • B01J20/28—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof characterised by their form or physical properties
    • B01J20/28014—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof characterised by their form or physical properties characterised by their form
    • B01J20/28016—Particle form
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
    • B01J20/28—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof characterised by their form or physical properties
    • B01J20/28014—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof characterised by their form or physical properties characterised by their form
    • B01J20/2803—Sorbents comprising a binder, e.g. for forming aggregated, agglomerated or granulated products
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
    • B01J20/28—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof characterised by their form or physical properties
    • B01J20/28014—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof characterised by their form or physical properties characterised by their form
    • B01J20/28033—Membrane, sheet, cloth, pad, lamellar or mat
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
    • B01J20/28—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof characterised by their form or physical properties
    • B01J20/28054—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof characterised by their form or physical properties characterised by their surface properties or porosity
    • B01J20/28078—Pore diameter
    • B01J20/2808—Pore diameter being less than 2 nm, i.e. micropores or nanopores
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
    • B01J20/28—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof characterised by their form or physical properties
    • B01J20/28054—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof characterised by their form or physical properties characterised by their surface properties or porosity
    • B01J20/28088—Pore-size distribution
    • B01J20/2809—Monomodal or narrow distribution, uniform pores
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B82—NANOTECHNOLOGY
    • B82Y—SPECIFIC USES OR APPLICATIONS OF NANOSTRUCTURES; MEASUREMENT OR ANALYSIS OF NANOSTRUCTURES; MANUFACTURE OR TREATMENT OF NANOSTRUCTURES
    • B82Y30/00—Nanotechnology for materials or surface science, e.g. nanocomposites
    • 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
    • F24F3/1411—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 by absorbing or adsorbing water, e.g. using an hygroscopic desiccant
    • 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
    • F28F13/18—Arrangements for modifying heat-transfer, e.g. increasing, decreasing by applying coatings, e.g. radiation-absorbing, radiation-reflecting; by surface treatment, e.g. polishing
    • F28F13/185—Heat-exchange surfaces provided with microstructures or with porous coatings
    • 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
    • F28F21/04—Constructions of heat-exchange apparatus characterised by the selection of particular materials of ceramic; of concrete; of natural stone
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2253/00—Adsorbents used in seperation treatment of gases and vapours
    • B01D2253/10—Inorganic adsorbents
    • B01D2253/106—Silica or silicates
    • B01D2253/108—Zeolites
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2253/00—Adsorbents used in seperation treatment of gases and vapours
    • B01D2253/30—Physical properties of adsorbents
    • B01D2253/302—Dimensions
    • B01D2253/304—Linear dimensions, e.g. particle shape, diameter
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2253/00—Adsorbents used in seperation treatment of gases and vapours
    • B01D2253/30—Physical properties of adsorbents
    • B01D2253/302—Dimensions
    • B01D2253/308—Pore size
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2253/00—Adsorbents used in seperation treatment of gases and vapours
    • B01D2253/30—Physical properties of adsorbents
    • B01D2253/302—Dimensions
    • B01D2253/31—Pore size distribution
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2257/00—Components to be removed
    • B01D2257/80—Water
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F2203/00—Devices or apparatus used for air treatment
    • F24F2203/10—Rotary wheel
    • F24F2203/1032—Desiccant wheel
    • F24F2203/1036—Details

Abstract

Humidity-and/or heat-exchange device (A) e.g. a plate heat exchanger, a sorption rotor, an adsorption dehumidifying rotor, comprises a humidity-and/or heat exchange surface coated with a bonding agent and a zeolite material of synthetic nano-zeolite with particle size of less than 1000 nm, where the surface is useful to introduce and/or remove humidity and/or heat into a fluid flow, or exchange humidity and/or heat between the fluid flow.

Description

Die Erfindung bezieht sich auf eine Feuchtigkeits- und/oder Wärmeaustauschvorrichtung, z.B. einen Plattenwärmetauscher, einen Sorptionsrotor, einen Adsorptionsentfeuchtungsrotor od.dgl., mit Feuchtigkeits- bzw. Wärmeaustauschflächen, mittels denen Feuchtigkeit und/oder Wärme in einen Fluidstrom einbringbar und/oder einem Fluidstrom entziehbar und/oder zwischen Fluidströmen austauschbar ist, und einer Beschichtung, mit der die Feuchtigkeits- bzw. Wärmeaustauschflächen beschichtet sind und die aus einem Zeolith-Material und einem Bindemittel ausgebildet ist.The Invention relates to a moisture and / or heat exchange device, e.g. a plate heat exchanger, a sorption rotor, an adsorption dehumidifying rotor or the like with moisture or heat exchange surfaces, by means of which Moisture and / or heat can be introduced into a fluid flow and / or can be withdrawn from a fluid flow and / or between fluid streams interchangeable, and a coating to or heat exchange surfaces coated and are formed of a zeolite material and a binder is.

Derartige Feuchtigkeits- und/oder Wärmeaustauschvorrichtungen werden häufig zur Temperierung und Klimatisierung von Räumen eingesetzt. Darüber hinaus sind auch andere industrielle Einsatzzwecke für derartige Feuchtigkeits- und/oder Wärmeaustauschvorrichtungen vorgesehen.such Moisture and / or heat exchange devices become common used for temperature control and air conditioning of rooms. Furthermore are also other industrial uses for such moisture and / or heat exchange devices intended.

Aus dem Stand der Technik bekannte derartige Feuchtigkeits- und/oder Wärmeaustauschvorrichtungen weisen – insbesondere dann, wenn einem Fluidstrom Feuchtigkeit zu entziehen bzw. ein Fluidstrom mit Feuchtigkeit zu beaufschlagen ist, – den Nachteil auf, dass der Adsorptionsvorgang und/oder der Desorptionsvorgang, der bzw. die in der Feuchtigkeits- und/oder Wärmeaustauschvorrichtung stattfindet bzw. stattfinden, einen zu großen Zeitraum beansprucht, wodurch an sich mögliche Kapazitäten derartiger Feuchtigkeits- und/oder Wärmeaustauschvorrichtungen nicht realisiert werden können. Des weiteren weisen die den Fluidströmen ausgesetzten Oberflächen der Beschichtungen häufig eine Rauhigkeit auf, die zur Folge hat, dass in den Fluidströmen enthaltene Partikel angelagert werden, was zu einer beträchtlichen Einbuße der Wirkungsgrade entsprechender Vorrichtungen führt bzw. häufig vergleichsweise aufwendige Reinigungs- und Wartungsmaßnahmen erfordert. Außerdem besteht häufig die Schwierigkeit, die Beschichtung an dem das Gerüst bzw. die Matrix der Feuchtigkeits- und/oder Wärmeaustauschvorrichtung ausbildenden Werkstoff zu fixieren.Out Such moisture and / or heat exchange devices known in the art wise - in particular then, when withdrawing moisture from a fluid flow or a fluid flow is to be acted upon with moisture, - the disadvantage that the Adsorption and / or the desorption, the or in the moisture and / or heat exchange device takes place or takes place, a too long a period claimed, which possible in itself Capacities of such Moisture and / or heat exchange devices can not be realized. Furthermore, the fluid streams exposed surfaces of the Coatings frequently a roughness, which has the consequence that contained in the fluid streams Particles are deposited, resulting in a significant loss of efficiencies corresponding devices leads or frequently comparatively complicated cleaning and maintenance measures requires. Furthermore is often the difficulty of coating the scaffold or form the matrix of the moisture and / or heat exchange device Fix material.

Ausgehend von dem eingangs geschilderten Stand der Technik liegt der Erfindung die Aufgabe zugrunde, eine Feuchtigkeits- und/oder Wärmeaustauschvorrichtung, z.B. einen Plattenwärmetauscher, einen Sorptionsrotor, einen Adsorptionsentfeuchtungsrotor od.dgl. zu schaffen, bei dem die vorstehend erwähnten Nachteile vermieden und der darüber hinaus mit einem vergleichsweise geringen technisch-konstruktiven Aufwand hergestellt werden kann.outgoing from the above-described prior art, the invention the object is to provide a moisture and / or heat exchange device, e.g. a plate heat exchanger, a Sorption rotor, a Adsorptionsentfeuchtungsrotor or the like. to accomplish, in which the above-mentioned Avoided the disadvantages and the above addition, with a comparatively low technical-constructive Effort can be made.

Diese Aufgabe wird erfindungsgemäß dadurch gelöst, dass als Material für die Ausgestaltung der Beschichtung der Feuchtigkeits- bzw. Wärmeaustauschflächen ein synthetischer Nano-Zeolith eingesetzt wird, der aus Partikeln mit einer Partikelgröße < 1000 nm besteht. Durch diese Ausgestaltung des die Beschichtung ausbildenden Zeolith-Materials lässt sich eine im Vergleich zu aus dem Stand der Technik bekannten Zeolith-Materialien erheblich erhöhte Adsorptionskinetik realisieren, die zur Folge hat, dass die Menge des je Zeiteinheit ad- bzw. desorbierten Wasserdampfes erhöht ist, woraus eine erhöhte Feuchteübertragung resultiert. Durch den Einsatz des erfindungsgemäßen Nano-Zeoliths als Beschichtungsmaterial wird eine Vergrößerung der spezifischen Oberfläche desselben erreicht, wobei darüber hinaus dieser Nano-Zeolith bei Einsatz entsprechend geeigneter Bindemittel auf vielfältigen Oberflächen gut haftbar ist. Der erfindungsgemäß als Beschichtungsmaterial eingesetzte Nano-Zeolith verfügt über eine schnelle Regenerationsfähigkeit. Als synthetischer Nano-Zeolith ist das Zeolith-Material mit einer sehr gleichmäßigen Partikelgrößenverteilung herstellbar. Je nach Auswahl der für das Beschichtungsmaterial vorgesehenen Partikelgrößenverteilung kann die Dicke der Beschichtung an unterschiedlichste Anforderungsprofile angepasst werden. Die niedrige Partikelgröße des erfindungsgemäß als Zeolith-Material eingesetzten synthetischen Nano-Zeoliths hat zur Folge, dass die Beschichtung an ihrer dem bzw. den Fluidströmen ausgesetzten Oberfläche eine sehr geringe Rauhigkeit aufweist, wodurch die entsprechend ausgestaltete Feuchtigkeits- und/oder Wärmeaustauschvorrichtung sehr verschmutzungsresistent ist. Die erfindungsgemäß ausgestalteten Beschichtungen können – je nach der für den synthetischen Nano-Zeolith ausgewählten mehr oder weniger gleichmäßigen Partikelgröße – über eine hohe Packungsdichte verfügen. Zur Aufbringung des erfindungsgemäßen Zeolith-Materials als Beschichtung auf die Feuchtigkeits- bzw. Wärmeaustauschflächen können sowohl Spin-Coating- als auch Dip-Coating-Verfahren eingesetzt werden. Die erfindungsgemäß mit Nano-Zeolith ausgestaltete Beschichtung ist aufgrund der Eigenschaften des Nano-Zeoliths hinsichtlich ihrer Oberflächenchemie variabel gestaltbar.These Task is inventively characterized solved, that as material for the embodiment of the coating of the moisture or heat exchange surfaces synthetic nano-zeolite is used, which consists of particles with a particle size <1000 nm. This configuration of the zeolite material forming the coating makes it possible a considerable compared to known from the prior art zeolite materials increased Realize adsorption kinetics, which has the consequence that the amount the water vapor adsorbed or desorbed per unit time is increased, resulting in an increased moisture transfer results. By using the nano-zeolite according to the invention as a coating material becomes an enlargement of the specific surface of the same, being above it addition, this nano-zeolite when using appropriately suitable binder good on a variety of surfaces is liable. The invention as a coating material used nano-zeolite has a fast regeneration ability. As a synthetic nano-zeolite is the zeolite material with a very uniform particle size distribution produced. Depending on the choice of the for the coating material provided particle size distribution The thickness of the coating can be adapted to a wide variety of requirement profiles be adjusted. The low particle size of the invention as a zeolite material used synthetic nano-zeolite has the consequence that the Coating on its surface exposed to the fluid streams or a has very low roughness, whereby the appropriately designed Moisture and / or heat exchange device very resistant to contamination. The inventively designed Coatings can - depending on the one for the synthetic nano-zeolite selected more or less uniform particle size - over one high packing density. For applying the zeolite material according to the invention as a coating to the moisture or heat exchange surfaces can both Spin coating as well as dip coating process be used. The inventively designed with nano-zeolite Coating is due to the properties of the nano-zeolite in terms their surface chemistry variably configurable.

Sofern die Platten von Plattenwärmetauschern mit der erfindungsgemäßen Beschichtung versehen werden, ist erreichbar, dass eine Flüssigkeit, die auf der einen Seite der Wärmetauscherplatte verdunsten soll, um auf der anderen Seite derselben Wärmetauscherplatte Kühlenergie zur Verfügung zu stellen, sehr gleichmäßig auf der die Beschichtung aufweisenden Seite der Wärmetauscherplatte verteilt wird, so dass auf der anderen Seite derselben Wärmetauscherplatte über deren Fläche eine gleichmäßige Verteilung der Kühlenergie vorliegt. Diese gleichmäßige Verteilung geht darauf zurück, dass durch die erfindungsgemäße Beschichtung auftreffende Flüssigkeitstropfen sehr gleichmäßig über die die erfindungsgemäße Beschichtung aufweisende Seite der Wärmetauscherplatte verteilt werden.If the plates of plate heat exchangers are provided with the coating according to the invention, it can be achieved that a liquid which is to evaporate on one side of the heat exchanger plate in order to provide cooling energy on the other side of the same heat exchanger plate very uniformly on the side having the coating the heat exchanger plate is distributed, so that on the other side of the same heat exchanger plate over the surface a gleichmä ßige distribution of cooling energy is present. This uniform distribution is due to the fact that liquid droplets striking the coating according to the invention are distributed very uniformly over the side of the heat exchanger plate having the coating according to the invention.

Gemäß einer vorteilhaften Ausführungsform der erfindungsgemäßen Feuchtigkeits- und/oder Wärmeaustauschvorrichtung ist der Nano-Zeolith so gewählt, dass er eine homogene Porengrößenverteilung mit einem Porendurchmesser < 1,5 nm, vorzugsweise 0,4 nm, besitzt. Hierdurch kann sichergestellt werden, dass in der Beschichtung solche Moleküle, die u.U. im langfristigen Betrieb der Feuchtigkeits- und/oder Wärmeaustauschvorrichtung zu Geruchsbelästigungen führen können, nicht aufgenommen werden können. Dahingegen kann Wasserdampf in der ent sprechend gestalteten Beschichtung in hervorragender Weise aufgenommen bzw. von dieser Beschichtung abgegeben werden. In dieser Ausgestaltung ist die erfindungsgemäß aus Nano-Zeolith ausgebildete Beschichtung somit als im Zusammenhang mit dem Betrieb von Feuchtigkeits- und/oder Wärmeaustauschvorrichtungen besonders geeignetes Molekularsieb einsetzbar.According to one advantageous embodiment of the according to the invention moisture and / or heat exchange device is the nano-zeolite chosen that he has a homogeneous pore size distribution with a pore diameter <1.5 nm, preferably 0.4 nm. This can be ensured be such that in the coating such molecules u.U. in the long term Operation of the moisture and / or heat exchange device to odors to lead can, can not be recorded. In contrast, water vapor in the accordingly designed coating in excellent way absorbed or released from this coating become. In this embodiment, the invention of nano-zeolite trained coating thus as in connection with the operation of moisture and / or heat exchange devices Particularly suitable molecular sieve can be used.

Für den Betrieb entsprechend ausgebildeter Feuchtigkeits- und/oder Wärmeaustauschvorrichtungen ist es zweckmäßig, wenn die Dicke der erfindungsgemäß ausgestalteten Beschichtung 0,2 bis 100, vorzugsweise 1 bis 2 μ (10–6m) aufweist.For the operation of appropriately trained moisture and / or heat exchange devices, it is expedient if the thickness of the inventively designed coating 0.2 to 100, preferably 1 to 2 μ (10 -6 m).

Eine besonders vorteilhafte Weiterbildung der erfindungsgemäßen Feuchtigkeits- und/oder Wärmeaustauschvorrichtung wird erreicht, wenn ein Adsorptionsentfeuchtungsrotor aus einem dafür geeigneten Papierwerkstoff hergestellt und die die Feuchtigkeits- bzw. Wärmeaustauschflächen bildende Werkstoffmatrix dieses Adsorptionsentfeuchtungsrotors mit einer den synthetischen Nano-Zeolith enthaltenden Suspension getränkt wird.A particularly advantageous development of the moisture and / or heat exchange device is achieved when a Adsorptionsentfeuchtungsrotor from a suitable for it Made of paper material and forming the moisture or heat exchange surfaces Material matrix of this Adsorptionsentfeuchtungsrotors with a the synthetic nano-zeolite-containing suspension is soaked.

Diese Tränkung kann solange bzw. in dem Ausmaß durchgeführt werden, bis – nach der Trocknung – die Werkstoffmatrix des Adsorptionsentfeuchtungsrotors zu zumindest 30, vorzugsweise 40 bis 80 Gew.-% aus dem erfindungsgemäßen Nano-Zeolith-Material besteht.These impregnation can be carried out as long as or to the extent until after drying - the Material matrix of Adsorptionsentfeuchtungsrotors at least 30, preferably 40 to 80 wt .-% of the inventive nano-zeolite material.

Selbstverständlich ist es auch möglich, die erfindungsgemäße Beschichtung einzusetzen, wenn die Werkstoffmatrix der Feuchtigkeits- und/oder Wärmeaustauschvorrichtung aus anderen geeigneten Werkstoffen, z.B. Aluminiumfolien, keramischen Werkstoffen od.dgl., ausgebildet ist.Of course it is it also possible the coating of the invention if the material matrix of the moisture and / or Heat exchange device of other suitable materials, e.g. Aluminum foils, ceramic materials or the like., Is formed.

Als Bindemittel kann ein Dispersionsklebstoff, z.B. Acrylat-Sole, mit einem Zusatz aus eventuell kolloidalem Siliciumoxid, eingesetzt werden. Das entsprechende Bindemittel ist auch bei anderen die Beschichtung ausbildenden Materialien vorteilhaft einsetzbar.When Binder may be a dispersion adhesive, e.g. Acrylic brine, with an additive from possibly colloidal silica, are used. The corresponding Binder is also useful in other coating forming materials can be used advantageously.

Im folgenden wird die Erfindung anhand von Ausführungsformen näher beschrieben.in the The invention will be described in more detail below with reference to embodiments.

Bei einem ersten Ausführungsbeispiel wird eine als Adsorptionsentfeuchtungsrotor ausgebildete Feuchtigkeits- und/oder Wärmeaustauschvorrichtung mit der erfindungsgemäßen Beschichtung aus einem synthetischen Nano-Zeolith mit einer Partikelgröße im Bereich von 300 nm versehen. Eine Werkstoffmatrix des Adsorptionsentfeuchtungsrotors besteht aus einem geeigneten Papierwerkstoff. Zum Einbringen des Nano-Zeoliths in die Werkstoffmatrix des Adsorptionsentfeuchtungsrotors wird der Adsorptionsentfeuchtungsrotor mit einer Suspension getränkt, die den Nano-Zeolith in der gewünschten Partikelgröße enthält. Nach der Trocknung des Adsorptionsentfeuchtungsrotors besteht dessen Endgewicht zu etwa 50 Gew.-% aus dem Nano-Zeolith.at a first embodiment is a moisture adsorption dehumidifying designed as a and / or heat exchange device with the coating according to the invention made of a synthetic nano-zeolite with a particle size in the range of 300 nm. A material matrix of the Adsorptionsentfeuchtungsrotors consists of a suitable paper material. To introduce the Nano-zeolite in the material matrix of Adsorptionsentfeuchtungsrotors The Adsorptionsentfeuchtungsrotor is soaked in a suspension, the contains the nano-zeolite in the desired particle size. To the drying of Adsorptionsentfeuchtungsrotors consists of it Final weight to about 50 wt .-% of the nano-zeolite.

Gegenüber herkömmlichen Zeolith-Werkstoffen hat das zur Tränkung der Werkstoffmatrix des Adsorptionsentfeuchtungsrotors verwendete Zeolith-Material mit Partikeln in nanokristalliner Form eine erheblich schnellere Adsorptions-/Desorptionskinetik. Die spezifische Oberfläche des erfindungsgemäßen Nano-Zeoliths ist größer als bei anderen herkömmlichen Zeolith-Werkstoffen. Der die Beschichtung des Adsorptionsentfeuchtungsrotors ausbildende kristalline Nano-Zeolith ist hin sichtlich seiner Porengröße vergleichsweise gleichmäßig und so gestaltbar, dass die Beschichtung eine gleichmäßige Porengröße mit einem Durchmesser von beispielsweise 0,4 nm aufweist. Durch diese Gestaltung der Struktur der Beschichtung kann sichergestellt werden, dass der Adsorptionsentfeuchtungsrotor auf Dauer dagegen geschützt ist, geruchsbildende Moleküle zu speichern, wohingegen Wasserdampfmoleküle in einfacher Weise aufgenommen und abgegeben werden können.Compared to conventional Zeolite materials have the impregnation of the material matrix of Adsorptionsentfeuchtungsrotors used zeolite material with particles in nanocrystalline form a significantly faster adsorption / desorption kinetics. The specific one surface the nano-zeolite according to the invention is bigger than in other conventional Zeolite materials. The coating forming the Adsorptionsentfeuchtungsrotors crystalline nano-zeolite is comparatively visible in terms of its pore size evenly and designed so that the coating has a uniform pore size with a Diameter of, for example, 0.4 nm. Through this design The structure of the coating can ensure that the Adsorption dehumidifying rotor is permanently protected against odor-forming molecules whereas water vapor molecules are easily absorbed and can be delivered.

Aufgrund der schnellen Adsorptions-/Desorptionskinetik kann die für den Betrieb eines derartigen Adsorptionsentfeuchtungsrotors zu installierende Kälteleistung – insbesondere in tropischen Klimata – erheblich reduziert werden, und zwar bis zu ca. 50 %.by virtue of Fast adsorption / desorption kinetics can be used for operation of such adsorption dehumidifying rotor to be installed Cooling capacity - in particular in tropical climates - significantly be reduced, and up to about 50%.

Der vorstehend geschilderte Adsorptionsentfeuchtungsrotor hat nach seiner Beschichtung eine gleichmäßig glatte Oberfläche; damit ist er für etwaige Verschmutzung wenig anfällig.Of the Adsorptionsentfeuchtungsrotor described above has after his Coating an evenly smooth Surface; he is for that any pollution is less prone.

Die Beschichtung kann hinsichtlich ihrer Oberflächenchemie variabel gestaltet werden. Sie kann mittels Spin-Coating- und Dip-Coating-Techniken aufgebracht werden.The coating can be made variable in terms of their surface chemistry. she can be applied by spin-coating and dip-coating techniques.

Die Beschichtung hat aufgrund der geringen und gleichmäßigen Partikelgröße eine sehr große spezifische Oberfläche und sie kann auf vielfältigen Oberflächen aufgebracht werden.The Coating has a due to the small and uniform particle size very large specific surface and it can be applied to a variety of surfaces become.

Als Bindemittel wurde ein kolloidales Acrylat-Polymer und kolloidales, amorphes, mit Natriumionen oberflächenstabilisiertes Siliciumoxid eingesetzt.When Binder was a colloidal acrylate polymer and colloidal, amorphous silica surface-stabilized with sodium ions used.

Auch Sorptionsrotoren, deren Werkstoffmatrix aus anderen Werkstoffen, z.B. aus Aluminium, besteht, können mit der vorstehend geschilderten Beschichtung versehen werden, wobei sich ähnliche Vorteile ergeben, wie vorstehend im Zusammenhang mit einem Adsorptionsentfeuchtungsrotor mit einer Werkstoffmatrix aus einem Papierwerkstoff geschildert.Also Sorption rotors whose material matrix is made of other materials, e.g. made of aluminum, can be provided with the above-described coating, wherein similar benefits as above in the context of an adsorption dehumidifying rotor described with a material matrix of a paper material.

Aufgrund der kleinen Partikelgröße ergibt sich für die Beschichtung eine relativ hohe Packungsdichte und damit können die Schichtdicken vergleichsweise gering sein. Bei dem vorstehend geschilderten Ausführungsbeispiel ist eine Schichtdicke von ca. 1 bis 2 μ (10–6m) ausreichend.Due to the small particle size results for the coating a relatively high packing density and thus the layer thicknesses can be comparatively low. In the embodiment described above, a layer thickness of about 1 to 2 μ (10 -6 m) is sufficient.

Des weiteren ist es möglich, die Beschichtung bei z.B. Plattenwärmetauschern einzusetzen. Wenn die aus dem vorstehend geschilderten kristallinen Nano-Zeolith bestehende Beschichtung auf eine Seite einer Wärmetauscherplatte aufgebracht wird, kann durch diese Beschichtung erreicht werden, dass zur Befeuchtung dieser Seite der Wärmetauscherplatte eingesetztes Befeuchtungsmittel gleichmäßiger an dieser Seite der Wärmetauscherplatte verteilt wird, was darauf beruht, dass auf die Beschichtung auftreffende Tropfen aufgrund der Struktur der Beschichtung gleichmäßiger aufgeteilt werden. Hierdurch wird auf der diese Beschichtung aufweisenden Seite der Wärmetauscherplatte gleichmäßig Verdunstungswärme abgefordert, was darin resultiert, dass ein Fluidstrom, der an der anderen Seite der Wärmetauscherplatte vorbeiströmt, in gewünschter Weise gekühlt wird. Auch bei dieser Anwendungsform der Beschichtung lassen sich gleiche bzw. ähnliche Vorteile wie die im Zusammenhang mit dem Adsorptionsentfeuchtungs- und dem Sorptionsrotor geschilderten erreichen.Of further it is possible the coating at e.g. Use plate heat exchangers. If consisting of the above-described crystalline nano-zeolite Coating applied to one side of a heat exchanger plate is, can be achieved by this coating that for humidification this side of the heat exchanger plate used moisturizer evenly distributed on this side of the heat exchanger plate which is based on that incident on the coating Drop more evenly divided due to the structure of the coating become. As a result, on the side having this coating the heat exchanger plate uniformly evacuated heat of evaporation, which results in a fluid flow on the other side of the heat exchanger plate flows past, in the desired Cooled way becomes. Also in this application form of the coating can be same or similar Advantages such as those associated with adsorption dehumidifying and reach the sorption described.

Claims (7)

Feuchtigkeits- und/oder Wärmeaustauschvorrichtung, z.B. Plattenwärmetauscher, Sorptionsrotor, Adsorptionsentfeuchtungsrotor od.dgl., mit Feuchtigkeits- bzw. Wärmeaustauschflächen, mittels denen Feuchtigkeit und/oder Wärme in einen Fluidstrom einbringbar und/oder einem Fluidstrom entziehbar und/oder zwischen Fluidströmen austauschbar ist, und einer Beschichtung, mit der die Feuchtigkeits- bzw. Wärmeaustauschflächen beschichtet sind und die aus einem Zeolith-Material und einem Bindemittel ausgebildet ist, dadurch gekennzeichnet, dass das Zeolith-Material als synthetischer Nano-Zeolith mit einer Partikelgröße < 1000 nm ausgebildet ist.Moisture and / or heat exchange device, eg plate heat exchanger, sorption rotor, Adsorptionsentfeuchtungsrotor or the like, with moisture or heat exchange surfaces, by means of which moisture and / or heat introduced into a fluid flow and / or a fluid flow and / or exchangeable between fluid streams, and a coating with which the moisture or heat exchange surfaces are coated and which is formed of a zeolite material and a binder, characterized in that the zeolite material is formed as a synthetic nano-zeolite having a particle size <1000 nm. Feuchtigkeits- und/oder Wärmeaustauschvorrichtung nach Anspruch 1, bei der der Nano-Zeolith so gewählt ist, dass er eine homogene Porengrößenverteilung mit einem Porendurchmesser < 1,5 nm, vorzugsweise 0,4 nm, besitzt.Moisture and / or heat exchange device according to Claim 1, wherein the nano-zeolite is chosen so that it is a homogeneous Pore size distribution with a pore diameter <1.5 nm, preferably 0.4 nm. Feuchtigkeits- und/oder Wärmeaustauschvorrichtung nach Anspruch 1 oder 2, bei der die Partikel des Zeolith-Materials in nanokristalliner Form vorliegen.Moisture and / or heat exchange device according to Claim 1 or 2, wherein the particles of the zeolite material in nanocrystalline form. Feuchtigkeits- und/oder Wärmeaustauschvorrichtung nach einem der Ansprüche 1 bis 3, bei der die Dicke der Beschichtung 0,2 bis 100, vorzugsweise 1 bis 2 μ (10–6m) aufweist.Moisture and / or heat exchange device according to one of claims 1 to 3, wherein the thickness of the coating from 0.2 to 100, preferably 1 to 2 μ (10 -6 m). Feuchtigkeits- und/oder Wärmeaustauschvorrichtung nach einem der Ansprüche 1 bis 3, deren Feuchtigkeits- bzw. Wärmeaustauschflächen aus Papierwerkstoffen hergestellt und die mit einer den synthetischen Nano-Zeolith enthaltenden Suspension getränkt sind.Moisture and / or heat exchange device according to one of the claims 1 to 3, their moisture or heat exchange surfaces Made of paper materials and those with a synthetic Nano zeolite-containing suspension are soaked. Feuchtigkeits- und/oder Wärmeaustauschvorrichtung nach Anspruch 5, die nach ihrer Tränkung mit bzw. in der synthetischen Nano-Zeolith enthaltenden Suspension zu zumindest 30, vorzugsweise 40 bis 80 Gew.-% aus Nano-Zeolith-Material besteht.Moisture and / or heat exchange device according to Claim 5, which after their impregnation with or in the synthetic nano-zeolite-containing suspension at least 30, preferably 40 to 80 wt .-% of nano-zeolite material consists. Feuchtigkeits- und/oder Wärmeaustauschvorrichtung, vorzugsweise nach einem der Ansprüche 1 bis 6, bei der das Bindemittel Dispersionsklebstoffe, wie z.B. Acrylat-Sole, denen zusätzlich kolloidales, SiO2 zusetzbar ist, enthält.Moisture and / or heat exchange device, preferably according to one of claims 1 to 6, in which the binder dispersion adhesive, such as acrylate sols, which in addition colloidal, SiO 2 is zusetzbar contains.
DE102005003543A 2005-01-26 2005-01-26 Humidity/heat-exchange device e.g. plate heat exchanger, useful for keeping the area at moderate temperature and for air-conditioning the area, comprises humidity/heat exchange surface Withdrawn DE102005003543A1 (en)

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DE102005003543A DE102005003543A1 (en) 2005-01-26 2005-01-26 Humidity/heat-exchange device e.g. plate heat exchanger, useful for keeping the area at moderate temperature and for air-conditioning the area, comprises humidity/heat exchange surface
PCT/EP2006/000156 WO2006079448A1 (en) 2005-01-26 2006-01-11 Humidity- and/or heat-exchange device, for example a plate heat exchanger, sorption rotor, adsorption dehumidifying rotor or the similar
CNB2006800028814A CN100565081C (en) 2005-01-26 2006-01-11 Wet and/or heat-exchange device
KR1020077019481A KR20070104439A (en) 2005-01-26 2006-01-11 Humidity- and/or heat-exchange device, for example a plate heat exchanger, sorption rotor, adsorption dehumidifying rotor or the similar
RU2007132080/06A RU2392556C2 (en) 2005-01-26 2006-01-11 Device for fluid- and/or heat exchange, for example sorption rotor, adsorption fluid absorbing rotor and similar hardware
EP06706192A EP1842024A1 (en) 2005-01-26 2006-01-11 Humidity- and/or heat-exchange device, for example a plate heat exchanger, sorption rotor, adsorption dehumidifying rotor or the similar
UAA200709601A UA93497C2 (en) 2005-01-26 2006-01-11 humidity- and/or heat-exchange device, for example a plate heat exchanger, sorption rotor, adsorption-dehumidifying rotor or THE LIKE
JP2007552546A JP2008528263A (en) 2005-01-26 2006-01-11 Moisture and / or heat exchange device
CA2595318A CA2595318C (en) 2005-01-26 2006-01-11 Humidity or heat exchange surfaces with nano-zeolite coating
US11/883,268 US20080308262A1 (en) 2005-01-26 2006-01-11 Humidity and/or Heat-Exchange Device
NO20074321A NO20074321L (en) 2005-01-26 2007-08-24 Humidifier and / or heat exchanger device, for example plate heat exchanger, sorption rotor, adsorption dehumidifier rotor or the like

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UA93497C2 (en) 2011-02-25
JP2008528263A (en) 2008-07-31
NO20074321L (en) 2007-08-24
EP1842024A1 (en) 2007-10-10
CN100565081C (en) 2009-12-02
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US20080308262A1 (en) 2008-12-18
RU2007132080A (en) 2009-03-10

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