EP0901601B1 - Wärmetauscher - Google Patents
Wärmetauscher Download PDFInfo
- Publication number
- EP0901601B1 EP0901601B1 EP97925886A EP97925886A EP0901601B1 EP 0901601 B1 EP0901601 B1 EP 0901601B1 EP 97925886 A EP97925886 A EP 97925886A EP 97925886 A EP97925886 A EP 97925886A EP 0901601 B1 EP0901601 B1 EP 0901601B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- heat exchanger
- capillary tubes
- exchanger according
- foam
- fluid
- Prior art date
- Legal status (The legal status 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 status listed.)
- Expired - Lifetime
Links
Images
Classifications
-
- 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
-
- 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
- F28D5/00—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, using the cooling effect of natural or forced evaporation
- F28D5/02—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, using the cooling effect of natural or forced evaporation in which the evaporating medium flows in a continuous film or trickles freely over the conduits
-
- 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
- F28F21/062—Constructions of heat-exchange apparatus characterised by the selection of particular materials of plastics material the heat-exchange apparatus employing tubular conduits
-
- 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
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S261/00—Gas and liquid contact apparatus
- Y10S261/11—Cooling towers
Definitions
- the invention relates to a heat exchanger according to the Preamble of claim 1.
- Such heat exchangers are used, for example, in Cooling towers used.
- By evaporative cooling of the water is the heat from the brine to the outside air dissipated.
- the pipe register made of 15 mm thick stainless steel pipes.
- large heat exchange surfaces are required is the construction of a cooling tower with high costs connected.
- Steel pipes used are financial Expenditure for the heat exchanger is still very large and also the space requirement considerably. It will therefore generally only closed cooling towers with relative low efficiencies or despite the risk of Pollution open cooling towers where the brine is sprayed directly into an air stream.
- a heat exchanger with a pipe register which is a fluid to be cooled or heated is performed, the pipe register in direct current sprinkled with the fluid with water and in countercurrent air flows through to the fluid, which air, for example can be used in a closed cooling tower is to create that despite low cost has a high efficiency and a compact Design.
- the pipe register made of parallel
- capillary tubes which are folded in such a way that they to form superimposed layers of the pipe register by one or more perpendicular to it Longitudinal lines are bent back, and that the spaces between the capillary tubes at least are partially filled with foam, is compared to conventional heat exchangers Heat exchange surface on the one hand through the capillary tubes, which have a much smaller diameter than have the previously used pipes, and secondly multiplied by the use of the foam.
- the advantageous plastic capillary tubes and the foam is inexpensive to manufacture.
- the foam advantageously consists of between neighboring ones Layers of mats arranged in the capillary tubes or is the space between the capillary tubes completely foamed.
- a conventional smooth tube heat exchanger made of tubes with an outer diameter of, for example, 15 mm and a depth of 100 cm has a heat exchange area of 60 m 2 per m 2 of air entry area.
- this area already increases to five times, namely 300 m 2 / m 2 of the air inlet area.
- the foam takes up about 50% of the heat exchanger volume, so that the length of the capillary tubes is reduced by about 50% becomes. Nevertheless, the heat exchange area of the heat exchanger increases to approximately 800 m 2 / m 2 of air entry area, since the foam itself has an inner surface of approximately 1200 m 2 / m 3 .
- the capillary tubes On the surface of the capillary tubes there is a and heat exchange between that through the capillary tubes flowing fluid, preferably brine, the over the capillary tubes pouring water and this counter-flowing air instead while in the foam only a mass and heat transfer between the water and the air takes place.
- fluid preferably brine
- capillary tubes 1 has several layers of capillary tubes 1 running parallel to one another Plastic on that have a diameter up to about Can have 5 mm.
- the individual capillary tubes 1 are as seen in Fig. 3 folded meandering, so that they each extend over several layers.
- brine to be cooled is fed, which the respective Capillary tube 1 at its lower end in the cooled Condition again.
- the tube register consisting of the capillary tubes 1 is evenly sprinkled with water from above and flows through air supplied from below. Since the Conduction of the brine from top to bottom is located they co-current with the water and with the air in counterflow. The one for evaporation of the water required heat is removed from the brine, so that this is cooled.
- Fig. 1 is between two adjacent layers Capillary tubes 1 arranged a mat made of foam 2. Such a mat is preferably located between all adjacent capillary tube layers. By the large inner surface of the foam 2 the available to evaporate the water Surface multiplied, so that the cooling effect is significantly improved.
- Fig. 2 shows a heat exchanger in which the tube register consisting of the capillary tubes 1 was foamed in the block, so that the entire space between the capillary tubes 1 is filled with foam 2.
- the heat exchange surface can thus be increased to approximately 1200 m 2 / m 2 air inlet surface under the conditions mentioned in the previous example.
- Fig. 3 shows schematically the use of the heat exchanger in a closed cooling tower. In this is the air in a known manner before the introduction in the heat exchanger in an upstream packing 3 adiabatic pre-cooled by evaporation and cleaned at the same time.
- the foam mats can cross to the longitudinal direction the capillary tubes 1 should be wave-shaped.
- the pipes are fixed in their position and have a fixed distance from each other. Farther can lead several capillary tubes in parallel to avoid a pressure drop on the water side.
- the heat exchanger according to the invention is not only for Cooling the fluid flowing through the capillary tubes usable, but can also be used for the reverse Heat and mass transport can be used. If the Temperature of the fluid below the temperature of the supplied Air is cooled and dehumidified become.
- the concentration of a saline solution increase by this through the heat exchanger sprinkled and the necessary heat of evaporation over the fluid is supplied.
- this process can also vice versa to the air flowing through to cool.
- the salt water then becomes over the fluid cooled below the dew point temperature of the air so that Water vapor from the air passes into the saline solution.
- the heat of condensation released in the process is transferred to the fluid drained.
- the Pipes can be made in a two-stage extruder in which in the first stage the Capillary tube itself and in the second stage that Foam layer forming material are extruded.
- the foam layer is useful as the base material the material of the capillary tubes, for example Polypropylene, being used in addition is mixed with a foaming agent.
Description
- Fig. 1
- eine schematische Darstellung eines Wärmetauschers im Schnitt senkrecht zu den Kapillarrohren gemäß einem ersten Ausführungsbeispiel der Erfindung,
- Fig. 2
- eine schematische Darstellung eines Wärmetauschers im Schnitt senkrecht zu den Kapillarrohren gemäß einem zweiten Ausführungsbeispiel der Erfindung, und
- Fig. 3
- eine schematische Darstellung des in einem Kühlturm eingesetzten Wärmetauschers nach Fig. 2 im Schnitt in der Ebene eines Kapillarrohres.
Claims (14)
- Wärmetauscher mit einem Rohrregister, durch welches ein zu kühlendes oder zu erwärmendes Fluid geführt wird, wobei das Rohrregister im Gleichstrom mit dem Fluid mit Wasser berieselt und im Gegenstrom zum Fluid von Luft durchströmt wird, und aus zueinander parallel geführten Kapillarrohren (1) besteht, die derart gefaltet sind, daß sie zur Bildung übereinanderliegender Lagen des Rohrregisters um eine oder mehrere senkrecht zu ihrer Längsrichtung verlaufende Linien jeweils zurückgebogen sind, dadurch gekennzeichnet daß die Räume zwischen den Kapillarrohren (1) zumindest teilweise durch Schaumstoff (2) ausgefüllt sind.
- Wärmetauscher nach Anspruch 1, dadurch gekennzeichnet, daß einander benachbarte Lagen der Kapillarrohre (1) jeweils durch eine Schaumstoffmatte voneinander getrennt sind.
- Wärmetauscher nach Anspruch 2, dadurch gekennzeichnet, daß die Schaumstoffmatten zur Vorgabe definierter Abstände zwischen den parallel geführten Kapillarrohren (1) wellenförmig ausgebildet sind.
- Wärmetauscher nach Anspruch 1, dadurch gekennzeichnet, daß der Raum zwischen den Kapillarrohren (1) vollständig ausgeschäumt ist.
- Wärmetauscher nach Anspruch 1, dadurch gekennzeichnet, daß die Kapillarrohre (1) jeweils mit einer Schaumstoffschicht überzogen sind.
- Wärmetauscher nach Anspruch 5, dadurch gekennzeichnet, daß die Kapillarrohre (1) und die Schaumstoffschicht aus dem gleichen Material bestehen.
- Wärmetauscher nach einem der Ansprüche 1 bis 6, dadurch gekennzeichnet, daß die Kapillarrohre (1) aus Kunststoff bestehen.
- Wärmetauscher nach einem der Ansprüche 1 bis 7, dadurch gekennzeichnet, daß die Kapillarrohre (1) einen Durchmesser von etwa 2 bis 5 mm aufweisen.
- Wärmetauscher nach einem der Ansprüche 1 bis 8, dadurch gekennzeichnet, daß der gegenseitige Abstand der Lagen der Kapillarrohre (1) etwa 5 bis 10 mm beträgt.
- Wärmetauscher nach einem der Ansprüche 1 bis 9, dadurch gekennzeichnet, daß der Schaum (2) eine Porosität von etwa 10 bis 30 ppi (Poren pro inch) hat.
- Wärmetauscher nach einem der Ansprüche 1 bis 10, dadurch gekennzeichnet, daß das Fluid Sole ist.
- Wärmetauscher nach einem der Ansprüche 1 bis 11, dadurch gekennzeichnet, daß er in einen Kühlturm eingesetzt ist.
- Verfahren zur Herstellung eines Wärmetauschers nach Anspruch 5 oder 6, dadurch gekennzeichnet, daß die mit der Schaumstoffschicht überzogenen Kapillarrohre (1) durch Extrudieren hergestellt werden, wobei in einer ersten Stufe das jeweilige Kapillarrohr (1) und in einer zweiten Stufe das die Schaumstoffschicht bildende Material hergestellt werden.
- Verfahren nach Anspruch 13, dadurch gekennzeichnet, daß in der zweiten Stufe das gleiche Material wie in der ersten Stufe, jedoch zusätzlich versetzt mit einem Schaumbildner, verwendet wird.
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19623245A DE19623245C2 (de) | 1996-05-30 | 1996-05-30 | Wärmetauscher |
DE19623245 | 1996-05-30 | ||
PCT/DE1997/001091 WO1997046845A1 (de) | 1996-05-30 | 1997-05-23 | Wärmetauscher |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0901601A1 EP0901601A1 (de) | 1999-03-17 |
EP0901601B1 true EP0901601B1 (de) | 1999-12-15 |
Family
ID=7796620
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP97925886A Expired - Lifetime EP0901601B1 (de) | 1996-05-30 | 1997-05-23 | Wärmetauscher |
Country Status (6)
Country | Link |
---|---|
US (1) | US6145818A (de) |
EP (1) | EP0901601B1 (de) |
JP (1) | JP2000514542A (de) |
DE (2) | DE19623245C2 (de) |
ES (1) | ES2142684T3 (de) |
WO (1) | WO1997046845A1 (de) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102008034122A1 (de) | 2008-07-18 | 2010-01-21 | Herbst, Donald, Dipl.-Ing. | Wärmetauscher, Verfahren zum Betreiben des Wärmetauschers und Verwendung des Wärmetauschers in einer Klimaanlage |
DE102011112200A1 (de) | 2011-08-30 | 2013-02-28 | Donald Herbst | Wärmetauscher |
Families Citing this family (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE19910441C1 (de) * | 1999-03-10 | 2000-06-21 | Fraunhofer Ges Forschung | Luftbefeuchtung |
DE10203229C1 (de) * | 2002-01-21 | 2003-04-17 | Donald Herbst | Wärmetauscher |
BE1015186A3 (nl) * | 2002-11-18 | 2004-10-05 | Atlas Copco Airpower Nv | Inrichting voor het gelijktijdig koelen en verwijderen van vocht uit een gas van een compressor. |
US7124580B2 (en) * | 2004-06-22 | 2006-10-24 | Crown Iron Works Company | Sub-zero condensation vacuum system |
US20070138662A1 (en) * | 2005-12-19 | 2007-06-21 | Chiu Peng C | Closed evaporative cooling tower |
DE102008013134A1 (de) * | 2008-03-07 | 2009-09-10 | Audi Ag | Wärmetauschvorrichtung und Verfahren zum Herstellen eines Wärmetauschelements für eine Wärmetauschvorrichtung |
CA2630063C (en) * | 2007-04-27 | 2014-02-04 | Rush Air Inc. | Evaporative cooling tower and method |
CN102187169A (zh) * | 2008-07-18 | 2011-09-14 | 唐纳德·赫布斯特 | 热交换器,操作热交换器的方法以及热交换器在空调中的用途 |
CN102581584A (zh) * | 2011-01-06 | 2012-07-18 | 鑫昇科技股份有限公司 | 制造热交换器盘管的方法 |
WO2012111308A1 (ja) * | 2011-02-14 | 2012-08-23 | パナソニック株式会社 | 熱交換器及びその製造方法 |
US9316394B2 (en) | 2013-03-12 | 2016-04-19 | Direct Contact, Llc | Heat recovery system |
EP2982914B1 (de) * | 2014-08-04 | 2019-06-26 | RMG - Rieder Management Ges.m.b.H. | Fassadenplatte |
CZ307896B6 (cs) * | 2017-10-24 | 2019-07-31 | Valeo Autoklimatizace K.S. | Tepelný výměník s pěnovým žebrováním a způsob jeho výroby |
CL2017003498A1 (es) * | 2017-12-29 | 2018-05-04 | Ahr Energy Spa | Método para producir transferencia de calor entre dos o mas medios y un sistema para ejecutar dicho método. |
Family Cites Families (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US185957A (en) * | 1877-01-02 | Improvement in carbureters | ||
US3820353A (en) * | 1972-11-09 | 1974-06-28 | Japan Gasoline | Evaporative cooling apparatus |
GB1504316A (en) * | 1975-03-27 | 1978-03-15 | Peri L Di | Air conditioning apparatus |
SE7609798L (sv) * | 1976-09-06 | 1978-03-07 | Alfa Laval Ab | Forfarande for avlegsnande av syre fran och tillsettande av koldioxid till en vetska |
US4440698A (en) * | 1980-11-10 | 1984-04-03 | Ivan Bloomer | Apparatus for ensuring heat exchange between a gas flow and a heat exchanger |
DE3216877C1 (de) * | 1982-05-03 | 1983-11-03 | Donald Dipl.-Ing. 1000 Berlin Herbst | In ein Gehaeuse einbaubares Waermeaustauschelement |
WO1984003551A1 (en) * | 1983-03-02 | 1984-09-13 | Mitsubishi Electric Corp | Heating panel |
US4461733A (en) * | 1983-03-28 | 1984-07-24 | Arvin Industries, Inc. | Capillary fin media |
JPH03500923A (ja) * | 1988-08-26 | 1991-02-28 | キエフスキ ポリテクニチェスキ インスチテュート イメニ 50‐レティア ヴェリコイ オクチャブルスコイ ソチアリスチチェスコイ レヴォリューツィ | 間接蒸発式ガス冷却装置 |
CN1048804C (zh) * | 1994-06-14 | 2000-01-26 | 宏贯股份有限公司 | 换气式冷风机 |
-
1996
- 1996-05-30 DE DE19623245A patent/DE19623245C2/de not_active Expired - Fee Related
-
1997
- 1997-05-23 JP JP10500093A patent/JP2000514542A/ja not_active Ceased
- 1997-05-23 ES ES97925886T patent/ES2142684T3/es not_active Expired - Lifetime
- 1997-05-23 EP EP97925886A patent/EP0901601B1/de not_active Expired - Lifetime
- 1997-05-23 DE DE59700856T patent/DE59700856D1/de not_active Expired - Fee Related
- 1997-05-23 WO PCT/DE1997/001091 patent/WO1997046845A1/de active IP Right Grant
- 1997-05-23 US US09/194,549 patent/US6145818A/en not_active Expired - Fee Related
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102008034122A1 (de) | 2008-07-18 | 2010-01-21 | Herbst, Donald, Dipl.-Ing. | Wärmetauscher, Verfahren zum Betreiben des Wärmetauschers und Verwendung des Wärmetauschers in einer Klimaanlage |
DE102008034122B4 (de) * | 2008-07-18 | 2010-06-02 | Herbst, Donald, Dipl.-Ing. | Wärmetauscher, Verfahren zum Betreiben des Wärmetauschers und Verwendung des Wärmetauschers in einer Klimaanlage |
DE102011112200A1 (de) | 2011-08-30 | 2013-02-28 | Donald Herbst | Wärmetauscher |
Also Published As
Publication number | Publication date |
---|---|
DE59700856D1 (de) | 2000-01-20 |
WO1997046845A1 (de) | 1997-12-11 |
DE19623245C2 (de) | 1999-07-29 |
US6145818A (en) | 2000-11-14 |
JP2000514542A (ja) | 2000-10-31 |
DE19623245A1 (de) | 1997-12-04 |
ES2142684T3 (es) | 2000-04-16 |
EP0901601A1 (de) | 1999-03-17 |
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