AT502030B1 - HEAT EXCHANGER BETWEEN A REFRIGERANT OF A HEAT PUMP AND WASTEWATER - Google Patents
HEAT EXCHANGER BETWEEN A REFRIGERANT OF A HEAT PUMP AND WASTEWATER Download PDFInfo
- Publication number
- AT502030B1 AT502030B1 AT12342005A AT12342005A AT502030B1 AT 502030 B1 AT502030 B1 AT 502030B1 AT 12342005 A AT12342005 A AT 12342005A AT 12342005 A AT12342005 A AT 12342005A AT 502030 B1 AT502030 B1 AT 502030B1
- Authority
- AT
- Austria
- Prior art keywords
- protective tube
- conduit
- refrigerant
- tubes
- heat exchanger
- Prior art date
Links
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
- F28F1/00—Tubular elements; Assemblies of tubular elements
- F28F1/003—Multiple wall conduits, e.g. for leak detection
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
- F24H1/00—Water heaters, e.g. boilers, continuous-flow heaters or water-storage heaters
- F24H1/18—Water-storage heaters
- F24H1/20—Water-storage heaters with immersed heating elements, e.g. electric elements or furnace tubes
- F24H1/208—Water-storage heaters with immersed heating elements, e.g. electric elements or furnace tubes with tubes filled with heat transfer fluid
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
- F24H4/00—Fluid heaters characterised by the use of heat pumps
- F24H4/02—Water heaters
- F24H4/04—Storage heaters
-
- 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
- F28D1/00—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, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators
- F28D1/02—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, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid
- F28D1/0206—Heat exchangers immersed in a large body of liquid
- F28D1/0213—Heat exchangers immersed in a large body of liquid for heating or cooling a liquid in a tank
-
- 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
- F28D1/00—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, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators
- F28D1/02—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, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid
- F28D1/04—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, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid with tubular conduits
- F28D1/047—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, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid with tubular conduits the conduits being bent, e.g. in a serpentine or zig-zag
- F28D1/0472—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, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid with tubular conduits the conduits being bent, e.g. in a serpentine or zig-zag the conduits being helically or spirally coiled
- F28D1/0473—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, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid with tubular conduits the conduits being bent, e.g. in a serpentine or zig-zag the conduits being helically or spirally coiled the conduits having a non-circular cross-section
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
Description
2 AT 502 030 B12 AT 502 030 B1
Die Erfindung bezieht sich auf einen Wärmetauscher zwischen einem Kältemittel einer Wärmepumpe und Brauchwasser mit einem schraubenförmig gebogenen Leitungsrohr für das Kältemittel. 5 Um Brauchwasser in einem Brauchwasserspeicher im Wärmeaustausch zu erwärmen, ist es bekannt, in den Brauchwasserspeicher eine in mehreren Windungen schraubenförmig gebogene Rohrschlange für einen erwärmten Wärmeträger einzusetzen. Wird als Wärmeträger das Kältemittel einer Wärmepumpe eingesetzt, so besteht die Gefahr, daß bei einem Leckwerden der Rohrschlange Kältemittel in das Brauchwasser gelangt. Aus diesem Grunde wird der Wär-io meaustausch nicht unmittelbar zwischen dem Kältemittel der Wärmepumpe und dem Brauchwasser durchgeführt, sondern über einen zusätzlichen Wärmeträger, üblicherweise Wasser, so daß eine allenfalls auftretende Leckage des Kältemittels höchstens den zusätzlichen Wärmeträger, nicht aber das Brauchwasser verunreinigt werden kann, das im Wärmeaustausch mit dem zusätzlichen Wärmeträger erwärmt wird. Nachteilig ist allerdings der damit verbundene 15 Konstruktionsaufwand, weil für einen Wärmeaustausch einerseits zwischen dem erwärmten Kältemittel und dem zusätzlichen Wärmeträger und anderseits zwischen dem zusätzlichen Wärmeträger und dem Brauchwasser gesorgt werden muß.The invention relates to a heat exchanger between a refrigerant of a heat pump and service water with a helically bent conduit for the refrigerant. 5 In order to heat hot water in a water heater in the heat exchange, it is known to use in the hot water tank in several turns helically bent coil for a heated heat carrier. If the refrigerant of a heat pump is used as the heat carrier, then there is a risk that if the pipe coil becomes leaking refrigerant will enter the service water. For this reason, the heat-io meaustausch is not carried out directly between the refrigerant of the heat pump and the hot water, but an additional heat carrier, usually water, so that any occurring leakage of the refrigerant at most the additional heat carrier, but not the service water can be contaminated , which is heated in the heat exchange with the additional heat transfer medium. A disadvantage, however, is the associated construction costs 15, because for a heat exchange on the one hand between the heated refrigerant and the additional heat transfer medium and on the other hand must be taken care of between the additional heat carrier and the service water.
Der Erfindung liegt somit die Aufgabe zugrunde, einen Wärmetauscher zwischen einem Kälte-20 mittel einer Wärmepumpe und Brauchwasser zu schaffen, der ohne zusätzlichen Wärmeträger auskommt und die erforderliche Sicherheit bietet, daß gegebenenfalls auftretende Leckage des Kältemittels nicht in das Brauchwasser gelangen kann.The invention is therefore an object of the invention to provide a heat exchanger between a refrigerant 20 medium of a heat pump and service water, which does not require additional heat transfer and provides the required security that any leakage of the refrigerant can not enter the service water.
Die Erfindung löst die gestellte Aufgabe dadurch, daß das Leitungsrohr für das Kältemittel mit 25 Spiel in ein Schutzrohr eingesetzt und mit dem Schutzrohr unter einer gegenseitigen Anlage in einem bezüglich der Rohrachse gegenüberliegenden Umfangsbereich quer zur Schraubungsachse abgeflacht ist.The invention solves the problem set by the fact that the conduit for the refrigerant used with 25 game in a protective tube and is flattened with the protective tube under a mutual investment in a respect to the tube axis peripheral region transverse to the screw axis.
Da das Schutzrohr das Leitungsrohr für das Kältemittel der Wärmepumpe umschließt, wird eine 30 allenfalls auftretende Leckage des Kältemittels vom Schutzrohr aufgefangen und kann daher nicht in das Brauchwasser gelangen, so daß ein unmittelbarer Wärmeaustausch zwischen dem Kältemittel und dem Brauchwasser möglich wird, wenn für einen entsprechenden Wärmeübergang vom Leitungsrohr des Kältemittels auf das Schutzrohr gesorgt wird. Dieser Wärmeübergang ergibt sich in einfacher Weise dadurch, daß die beiden mit Spiel ineinandergesteckten 35 Rohre auf einander bezüglich der Rohrachse gegenüberliegenden Seiten flachgedrückt werden und sich aufgrund dieser Verformung in gegenüberliegenden Umfangsbereichen flächig aneinander legen. Diese Berührungsflächen entlang der gesamten Windungen stellen einen ausreichenden Wärmeübergang vorn Leitungsrohr für das Kältemittel zum Schutzrohr sicher, über das das Brauchwasser erwärmt wird. Das Spiel zwischen den beiden Rohren erlaubt ein einfa-40 ches Einführen des Leitungsrohres in das Schutzrohr, bevor die ineinandergesteckten Rohre gebogen werden. Dieses Spiel ist so zu bemessen, daß beim Zusammendrücken der Rohre eine entsprechende Berührungsfläche erreicht wird.Since the protective tube encloses the conduit for the refrigerant of the heat pump, any leakage of the refrigerant occurring from the protective tube is collected and therefore can not get into the service water, so that a direct heat exchange between the refrigerant and the service water is possible, if for a corresponding Heat transfer from the conduit of the refrigerant is ensured on the protective tube. This heat transfer results in a simple manner in that the two tubes 35 inserted into one another with play are pressed flat on opposite sides relative to the tube axis, and due to this deformation lie flat against one another in opposite circumferential regions. These contact surfaces along the entire windings ensure sufficient heat transfer from the conduit for the refrigerant to the protective tube, via which the process water is heated. The clearance between the two tubes allows easy insertion of the conduit into the protective tube before the nested tubes are bent. This game is to be dimensioned so that a corresponding contact surface is achieved when squeezing the tubes.
Der verbleibende Zwischenraum zwischen den aufgrund der gemeinsamen Abflachung anei-45 nanderliegenden Rohre kann zumindest teilweise mit einem wärmeleitenden Werkstoff ausgefüllt werden, um den Wärmeübergang vom Leitungsrohr auf das Schutzrohr zusätzlich zu verbessern.The remaining gap between the pipes lying adjacent to each other due to the common flattening can be at least partially filled with a thermally conductive material in order to additionally improve the heat transfer from the pipe to the protective pipe.
Zum Herstellen eines erfindungsgemäßen Wärmetauschers mit einem schraubenförmig gebo-50 genen Leitungsrohr für das Kältemittel der Wärmepumpe kann das Leitungsrohr zunächst mit Spiel in ein Schutzrohr eingeführt und dann gemeinsam mit dem Schutzrohr schraubenförmig gebogen werden, wobei das Schutzrohr und das Leitungsrohr unter einer Abflachung quer zur Schraubenachse aneinandergedrückt werden. Bei einer entsprechenden Abstimmung des Spiels zwischen den beiden Rohren kann die beim Biegen der ineinandergesteckten Rohre 55 zwangsläufig auftretende Querschnittsverformung dazu genützt werden, die für das gegenseiti-For producing a heat exchanger according to the invention with a helically gebo 50 geneen conduit for the refrigerant of the heat pump, the conduit can first be introduced with play in a protective tube and then helically bent together with the protective tube, the protective tube and the conduit under a flattening transverse to the screw axis be pressed together. With an appropriate tuning of the play between the two tubes, the cross-sectional deformation which inevitably occurs when bending the nested tubes 55 can be utilized, which can be used for the mutual
Claims (5)
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AT12342005A AT502030B1 (en) | 2005-07-22 | 2005-07-22 | HEAT EXCHANGER BETWEEN A REFRIGERANT OF A HEAT PUMP AND WASTEWATER |
EP06450102A EP1746362A3 (en) | 2005-07-22 | 2006-07-19 | Heat exchanger between refrigerant and sanitary water |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AT12342005A AT502030B1 (en) | 2005-07-22 | 2005-07-22 | HEAT EXCHANGER BETWEEN A REFRIGERANT OF A HEAT PUMP AND WASTEWATER |
Publications (2)
Publication Number | Publication Date |
---|---|
AT502030A4 AT502030A4 (en) | 2007-01-15 |
AT502030B1 true AT502030B1 (en) | 2007-01-15 |
Family
ID=37188766
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
AT12342005A AT502030B1 (en) | 2005-07-22 | 2005-07-22 | HEAT EXCHANGER BETWEEN A REFRIGERANT OF A HEAT PUMP AND WASTEWATER |
Country Status (2)
Country | Link |
---|---|
EP (1) | EP1746362A3 (en) |
AT (1) | AT502030B1 (en) |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
ITBO20110102A1 (en) * | 2011-03-03 | 2012-09-04 | Rossato Group S R L | COMBINED SYSTEM IN HEAT PUMP |
NL2016755B1 (en) * | 2016-05-10 | 2017-11-16 | Remeha B V | Heat exchanger. |
CN106052130A (en) * | 2016-06-30 | 2016-10-26 | 珠海格力电器股份有限公司 | Insulation liquid storage tank and water heater |
US10429084B2 (en) | 2017-02-21 | 2019-10-01 | A. O. Smith Corporation | Heat pump water heater |
JP2021014971A (en) * | 2019-07-16 | 2021-02-12 | ダイキン工業株式会社 | Storage tank unit |
CN112325486A (en) * | 2020-11-25 | 2021-02-05 | 珠海格力电器股份有限公司 | Water heater and determination method and anti-freezing control method of anti-freezing heating element thereof |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE7927266U1 (en) * | 1979-09-26 | 1980-01-31 | Fedder, Dieter, 4420 Coesfeld | CONDENSER FOR HEAT PUMPS |
DE3434481A1 (en) * | 1984-09-20 | 1986-03-20 | Küppersbusch AG, 4650 Gelsenkirchen | Heat generator with a heat exchanger |
US20040079522A1 (en) * | 1995-11-13 | 2004-04-29 | Roger Paulman | Folded, bent and re-expanded heat exchanger tube and assemblies |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2441818A1 (en) * | 1978-11-15 | 1980-06-13 | Collard Et A Trolart Sa G | Heat exchanger with secondary spiral tubes mounted in outer tube - has spiral outer tube mounted in tank and open to atmospheric pressure to prevent mixing of fluids in exchanger |
NL8301019A (en) * | 1983-03-22 | 1984-10-16 | Awb Bv | Partition between media in heat exchanger - consists of two coaxial tubes laterally compressed leaving leak detection passage between them |
ITRM20010474A1 (en) * | 2001-08-03 | 2003-02-03 | Fontecal S P A | HIGH YIELD SPIROIDAL HEAT EXCHANGER FOR HEATING AND / OR PRODUCTION OF DOMESTIC HOT WATER, PARTICULARLY SUITABLE FOR CONDENSING |
-
2005
- 2005-07-22 AT AT12342005A patent/AT502030B1/en not_active IP Right Cessation
-
2006
- 2006-07-19 EP EP06450102A patent/EP1746362A3/en not_active Withdrawn
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE7927266U1 (en) * | 1979-09-26 | 1980-01-31 | Fedder, Dieter, 4420 Coesfeld | CONDENSER FOR HEAT PUMPS |
DE3434481A1 (en) * | 1984-09-20 | 1986-03-20 | Küppersbusch AG, 4650 Gelsenkirchen | Heat generator with a heat exchanger |
US20040079522A1 (en) * | 1995-11-13 | 2004-04-29 | Roger Paulman | Folded, bent and re-expanded heat exchanger tube and assemblies |
Also Published As
Publication number | Publication date |
---|---|
AT502030A4 (en) | 2007-01-15 |
EP1746362A3 (en) | 2008-05-28 |
EP1746362A2 (en) | 2007-01-24 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PC | Change of the owner |
Owner name: OCHSNER WAERMEPUMPEN GMBH, AT Effective date: 20150930 |
|
MM01 | Lapse because of not paying annual fees |
Effective date: 20200722 |