CH690793A5 - Adsorber / desorber HEAT EXCHANGER - Google Patents

Adsorber / desorber HEAT EXCHANGER Download PDF

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Publication number
CH690793A5
CH690793A5 CH00976/00A CH9762000A CH690793A5 CH 690793 A5 CH690793 A5 CH 690793A5 CH 00976/00 A CH00976/00 A CH 00976/00A CH 9762000 A CH9762000 A CH 9762000A CH 690793 A5 CH690793 A5 CH 690793A5
Authority
CH
Switzerland
Prior art keywords
heat exchanger
ribs
adsorber
granules
exchanger according
Prior art date
Application number
CH00976/00A
Other languages
German (de)
Inventor
Rainer Dr Lang
Marc Stricker
Manfred Dr Roth
Original Assignee
Vaillant Gmbh
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Vaillant Gmbh filed Critical Vaillant Gmbh
Publication of CH690793A5 publication Critical patent/CH690793A5/en

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B35/00—Boiler-absorbers, i.e. boilers usable for absorption or adsorption
    • F25B35/04—Boiler-absorbers, i.e. boilers usable for absorption or adsorption using a solid as sorbent
    • 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
    • F28D20/00—Heat storage plants or apparatus in general; Regenerative heat-exchange apparatus not covered by groups F28D17/00 or F28D19/00
    • F28D20/003—Heat storage plants or apparatus in general; Regenerative heat-exchange apparatus not covered by groups F28D17/00 or F28D19/00 using thermochemical reactions
    • 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
    • F28D20/00—Heat storage plants or apparatus in general; Regenerative heat-exchange apparatus not covered by groups F28D17/00 or F28D19/00
    • F28D20/0056—Heat storage plants or apparatus in general; Regenerative heat-exchange apparatus not covered by groups F28D17/00 or F28D19/00 using solid heat storage material
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
    • Y02A30/00—Adapting or protecting infrastructure or their operation
    • Y02A30/27—Relating to heating, ventilation or air conditioning [HVAC] technologies
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/14—Thermal energy storage

Description

1 1

CH 690 793 A5 CH 690 793 A5

2 2

Beschreibung description

Die Erfindung bezieht sich auf einen Adsorber-/ Desorber-Wärmetauscher gemäss dem einleitenden Teil des Anspruches 1. The invention relates to an adsorber / desorber heat exchanger according to the introductory part of claim 1.

Bei bekannten derartigen Adsorber-/Desorber-Wärmetauschern ist ein Rohr in Granalien eingebettet. In known adsorber / desorber heat exchangers, a tube is embedded in granules.

Bei solchen Wärmetauschern ergibt sich der Nachteil, dass aufgrund der schlechten Wärmeleitfähigkeit des Adsorbens und des hohen Diffusionswiderstandes innerhalb der Schüttung der Sorpti-onsprozess nur sehr langsam und daher uneffektiv abläuft. The disadvantage of such heat exchangers is that, due to the poor thermal conductivity of the adsorbent and the high diffusion resistance within the bed, the sorption process is very slow and therefore ineffective.

Ziel der Erfindung ist es, diesen Nachteil zu vermeiden und einen Adsorber-/Desorber-Wärmetau-scher der eingangs erwähnten Art vorzuschlagen, bei dem ein rascher Ablauf des Sorptionsprozesses sichergestellt ist. The aim of the invention is to avoid this disadvantage and to propose an adsorber / desorber heat exchanger of the type mentioned in the introduction, in which a rapid course of the sorption process is ensured.

Erfindungsgemäss wird dies bei einem Wärmetauscher der eingangs erwähnten Art durch die Merkmale des Anspruches 1 erreicht. According to the invention, this is achieved in a heat exchanger of the type mentioned at the outset by the features of claim 1.

Durch die vorgeschlagenen Massnahmen wird erreicht, dass einerseits die Wärmetauschfläche des Rohres vergrössert wird und zwischen den einzelnen Rippen nur eine einlagige Schüttung möglich ist. Dadurch kann der Sorptionsprozess trotz der schlechten Wärmeleitfähigkeit und trotz des grossen Diffusionswiderstandes des Adsorbens schnell und effektiv ablaufen. Dabei liegt eine grosse Stoffaustauschfläche für die Adsorption und Desorption des Adsorbats, z.B. Wasser, vor und die Wärme kann durch den direkten Kontakt zur Rippe schnell mit dem Wärmeträger, der im Rohr strömt, ausgetauscht werden. The proposed measures ensure that, on the one hand, the heat exchange surface of the pipe is increased and that only a single-layer fill is possible between the individual fins. As a result, the sorption process can run quickly and effectively despite the poor thermal conductivity and despite the high diffusion resistance of the adsorbent. There is a large mass transfer area for the adsorption and desorption of the adsorbate, e.g. Water, in front and the heat can be quickly exchanged with the heat transfer medium flowing in the pipe through direct contact with the fin.

Durch die vorgeschlagenen Massnahmen wird auch eine hohe Wärmeziffer der Sorptionswärmepumpe bei gleichzeitig guter Leistungsdichte erreicht. The proposed measures also achieve a high heat coefficient of the sorption heat pump with a good power density.

In diesem Zusammenhang ist es vorteilhaft die Merkmale des Anspruches 2 vorzusehen. In this context, it is advantageous to provide the features of claim 2.

Durch die Merkmale des Anspruches 3 ist eine sehr einfache Herstellung eines erfindungsgemäs-sen Adsorber-/Desorber-Wärmetauschers ermöglicht. Die Merkmale der Ansprüche 4 und 5 zeigen weitere vorteilhafte Weiterbildungen des Erfindungsgegenstandes. The features of claim 3 enable a very simple manufacture of an adsorber / desorber heat exchanger according to the invention. The features of claims 4 and 5 show further advantageous developments of the subject matter of the invention.

Die Erfindung wird nun anhand der Zeichnung näher erläutert, die schematisch einen erfindungs-gemässen Wärmetauscher zeigt. The invention will now be explained in more detail with reference to the drawing, which schematically shows a heat exchanger according to the invention.

Der dargestellte Adsorber-/Desorber-Wärmetau-scher weist ein von einem wärmeaufnehmenden Medium durchströmbares Rohr 1 auf. Dieses Rohr 1 ist mit Rippen 2 versehen und steht mit diesen in einer gut wärmeleitenden Verbindung. The adsorber / desorber heat exchanger shown has a tube 1 through which a heat-absorbing medium can flow. This tube 1 is provided with ribs 2 and is in a good heat-conducting connection with them.

Zwischen den einzelnen Rippen 2 sind Granalien 4 in jeweils einer Lage eingebracht, wobei die Korngrösse der Granalien geringfügig kleiner als der lichte Abstand 5 zweier Rippen ist. Dadurch ist sichergestellt, dass sich zwischen je zwei Rippen 2 lediglich eine Lage von Granalien befindet, wobei es sich vorteilhafterweise um einen Zeolith handelt. Granules 4 are placed in each layer between the individual ribs 2, the grain size of the granules being slightly smaller than the clear spacing 5 between two ribs. This ensures that there is only one layer of granules between each two ribs 2, which is advantageously a zeolite.

Im Bereich der Rippen 2 ist der Wärmetauscher von einem Netz 3 umgeben, das das Herausfallen der Granalien 4 verhindert. Zur Sicherung des Netzes 3 ist dieses mit einem Band 6 umwickelt. In the area of the fins 2, the heat exchanger is surrounded by a network 3 which prevents the granules 4 from falling out. To secure the network 3, this is wrapped with a tape 6.

Claims (5)

PatentansprücheClaims 1. Adsorber-/Desorber-Wärmetauscher mit einem von Granalien (4) umgebenen von einem wärmeaufnehmenden Medium durchströmbaren Rohr (1), das mit Rippen (2) versehen ist, die einen Abstand voneinander aufweisen, der kleiner als die doppelte Korngrösse der Granalien (4) ist, und der Raum zwischen den Rippen (2) mit einlagig eingebrachten Granalien (4) ausgefüllt ist, wobei die Rippen (2) von einem Netz (3) umgeben sind.1. Adsorber / desorber heat exchanger with a tube (1) surrounded by granules (4) and through which a heat-absorbing medium can flow, which is provided with ribs (2) which are spaced apart from one another by less than twice the grain size of the granules ( 4), and the space between the ribs (2) is filled with single-layer granules (4), the ribs (2) being surrounded by a net (3). 2. Wärmetauscher nach Anspruch 1, dadurch gekennzeichnet, dass die Höhe der Rippen (2) dem drei- bis fünffachen des Rippenabstands entspricht.2. Heat exchanger according to claim 1, characterized in that the height of the ribs (2) corresponds to three to five times the rib spacing. 3. Wärmetauscher nach Anspruch 1 oder 2, dadurch gekennzeichnet, dass die Rippen (2) als Wendelrippen ausgebildet sind.3. Heat exchanger according to claim 1 or 2, characterized in that the ribs (2) are designed as helical ribs. 4. Wärmetauscher nach Anspruch 1, dadurch gekennzeichnet, dass die Granalien aus einem Zeoli-then bestehen.4. Heat exchanger according to claim 1, characterized in that the granules consist of a zeolite. 5. Wärmetauscher nach Anspruch 1, dadurch gekennzeichnet, dass das Netz (3) von einem Band (6) umwickelt ist.5. Heat exchanger according to claim 1, characterized in that the network (3) is wrapped by a tape (6). 55 1010th 1515 2020th 2525th 3030th 3535 4040 4545 5050 5555 6060 6565 22
CH00976/00A 1999-05-25 2000-05-15 Adsorber / desorber HEAT EXCHANGER CH690793A5 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
AT0091299A AT407568B (en) 1999-05-25 1999-05-25 ADSORBER / DESORBER HEAT EXCHANGER

Publications (1)

Publication Number Publication Date
CH690793A5 true CH690793A5 (en) 2001-01-15

Family

ID=3502705

Family Applications (1)

Application Number Title Priority Date Filing Date
CH00976/00A CH690793A5 (en) 1999-05-25 2000-05-15 Adsorber / desorber HEAT EXCHANGER

Country Status (4)

Country Link
AT (1) AT407568B (en)
CH (1) CH690793A5 (en)
DE (1) DE10024793B4 (en)
NL (1) NL1015112C1 (en)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT411551B (en) * 2000-04-17 2004-02-25 Vaillant Gmbh Adsorber / desorber heat exchanger
AT409186B (en) * 2000-08-18 2002-06-25 Vaillant Gmbh Adsorber / desorber heat exchanger
AT410716B (en) * 2001-02-23 2003-07-25 Vaillant Gmbh ADSORBER / DESORBER FOR A ZEOLITH HEATER
AT412506B (en) * 2001-08-22 2005-03-25 Vaillant Gmbh Absorption or desorption module in form of container has screen element between heat exchanger and absorber/desorber; container consists of stainless steel or steam resistant ceramic
DE102005000022A1 (en) * 2005-03-16 2006-09-28 Füsting, Bernd Sorbent molding, method of manufacture and use
DE102008055699A1 (en) 2007-11-09 2009-10-15 Vaillant Gmbh Sorber heat exchanger of an adsorption heat pump
DE202007016166U1 (en) 2007-11-16 2008-07-10 Hellwig, Udo, Prof. Dr. composite body
DE102010004344A1 (en) 2010-01-11 2011-07-14 Viessmann Werke GmbH & Co KG, 35108 Coating process and adsorber element
DK178553B1 (en) 2014-04-25 2016-06-13 Teknologisk Inst Temperature fluctuation and temperature gradient resistant coating composition having also corrosion inhibiting properties, method for making the coating and use thereof

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5441716A (en) * 1989-03-08 1995-08-15 Rocky Research Method and apparatus for achieving high reaction rates
DE4405669A1 (en) * 1994-02-23 1995-08-24 Zeolith Tech Adsorbent coating on metals and method of manufacture
DE19730697A1 (en) * 1997-07-17 1999-01-21 Buderus Heiztechnik Gmbh Adsorption heat pump using zeolite heat exchanger
DE19902695B4 (en) * 1998-01-21 2016-01-07 Vaillant Gmbh Sorption heat pump with an ad / desorber heat exchanger

Also Published As

Publication number Publication date
DE10024793B4 (en) 2007-05-16
ATA91299A (en) 2000-08-15
DE10024793A1 (en) 2001-02-01
NL1015112C1 (en) 2000-11-28
AT407568B (en) 2001-04-25

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