EP1032793B1 - Low-volume continuous-flow device for heating drinking water - Google Patents
Low-volume continuous-flow device for heating drinking water Download PDFInfo
- Publication number
- EP1032793B1 EP1032793B1 EP99955689A EP99955689A EP1032793B1 EP 1032793 B1 EP1032793 B1 EP 1032793B1 EP 99955689 A EP99955689 A EP 99955689A EP 99955689 A EP99955689 A EP 99955689A EP 1032793 B1 EP1032793 B1 EP 1032793B1
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- Prior art keywords
- flow
- container
- partitions
- water
- connections
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Classifications
-
- 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
- F28D9/00—Heat-exchange apparatus having stationary plate-like or laminated conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall
- F28D9/0031—Heat-exchange apparatus having stationary plate-like or laminated conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall the conduits for one heat-exchange medium being formed by paired plates touching each other
- F28D9/0043—Heat-exchange apparatus having stationary plate-like or laminated conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall the conduits for one heat-exchange medium being formed by paired plates touching each other the plates having openings therein for circulation of at least one heat-exchange medium from one conduit to another
- F28D9/005—Heat-exchange apparatus having stationary plate-like or laminated conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall the conduits for one heat-exchange medium being formed by paired plates touching each other the plates having openings therein for circulation of at least one heat-exchange medium from one conduit to another the plates having openings therein for both heat-exchange media
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24D—DOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATING SYSTEMS; DOMESTIC HOT-WATER SUPPLY SYSTEMS; ELEMENTS OR COMPONENTS THEREFOR
- F24D3/00—Hot-water central heating systems
- F24D3/08—Hot-water central heating systems in combination with systems for domestic hot-water supply
- F24D3/087—Tap water heat exchangers specially adapted therefore
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F3/00—Plate-like or laminated elements; Assemblies of plate-like or laminated elements
- F28F3/02—Elements or assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with recesses, with corrugations
- F28F3/04—Elements or assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with recesses, with corrugations the means being integral with the element
Definitions
- the invention relates to a flow device with a small volume for DHW heating, especially for installation in and for the connection with gas flow heaters, according to the generic term of claim 1.
- Continuous flow devices of the type mentioned are, for example, according to WO-A-92/11501 known, in the form of plate heat exchangers with an education that two or more individual such plate heat exchanger for the purpose of enlarging the heat exchange surface can be directly coupled together. It is also known to use such flow devices with gas flow heaters (see for example EP-A-0427121 A2) to combine or to connect hydraulically.
- gas flow heaters see for example EP-A-0427121 A2
- a disadvantage of such Combi water heaters which usually also have a Heating circuit is connected that after the tenon in relatively small volume of stored drinking water noticeable "sagging" of the hot water outlet temperature is observed, i.e. in certain operating states (e.g. smooth operation - summer operation) is at the start of the tap not the one required for convenient domestic water heating Heating water temperature available.
- the invention is therefore based on the object, a continuous flow device to create that does not have this disadvantage, i.e. based on a continuous flow device of the type mentioned at the beginning Kind, this should go with a compact design easily redesigned and improved that the so-called "sagging" of the hot water outlet temperature is avoided or at least considerably reduced.
- This inventive design means that the wastewater downstream Container part with high efficiency regarding heat transfer and the cold water inflow side of the tank works as a "storage part” with lower efficiency, being basically relatively small hydraulic Total volume of the flow device the entire drinking water side Content with max. 3 liters is measured and distributed that the "storage part" accommodate a larger volume of drinking water is capable of serving as the part of the tank downstream of the hot water. This division is then sufficient to the when tapping To bridge "dead time", which, as mentioned, then arises, if the required heating water temperature is not immediately available is.
- This solution according to the invention is therefore not limited to Known regulatory and control measures for im above, meaning convenient hot water supply (see also EP-A-0427121 A2), but also sets by appropriate design on the flow device itself, i.e. from time to time the larger part of the storage volume becomes kept at "standby temperature” by supplying heat.
- 1 to 5 are all corresponding elements designated with corresponding reference symbols, i.e. the container with 1, the container parts dividing them with 1 ', 1 "the cold water inlet connection with 2, the hot water outlet connection with 3 and the heating water supply and - return connections with 4 and 5.
- Fig. 5 are a heat generator (gas heater) with WE, the heating circuit connected to this with HK and that to a compact unit from the two Container parts 1 ', 1' 'continuous flow device with DG.
- a heat generator gas heater
- the hot water outflow-side container part 1 'of the container 1 is dimensioned with a smaller volume than the cold water inflow-side container part 1''of the container 1 that the cold water inlet and hot water outlet connections 2, 3 and the heating water supply and return connections 4, 5 are arranged on the other container part 1 ', 1'', the partition walls 6 arranged in the smaller container part 1', viewed in different areas, one with respect to the partition walls 6 in the other container part 1 '' have greater heat transfer, and that the gap spaces 7, 8 are each connected to one another in such a way that in the container parts 1 ', 1' there is a direct current and / or countercurrent connection with respect to the two flow media.
- the heating water supply is dash-dotted and the The drinking water supply is dashed and each with directional arrows illustrates, which is what due to the Directional arrows require no further explanation in order to preferred interconnection of the gap spaces 7, 8, namely Direct current in the container part 1 '' and counter current in the container part 1'.
- the heating return HR and the cold water inlet KW on the same side such as the heating flow HV and the hot water drain on the flow device arranged to, as mentioned in the introduction, more convenient To get connectivity.
- the wiring diagram 1 it would also be possible, if necessary with the interposition of a further deflection chamber, the container part 1 '' to a certain extent by 180 ° so that the Bring connections 2 and 5 on the same side as the Connections 3 and 4.
- partition walls 6 are preferred, which are known per se with regard to compact Construction and the tight installation conditions in a gas water heater here-but get special meaning.
- the partitions 6 are also in the form of shells 6 ' and with in the area of their overflow openings 10 embossed, each oppositely pronounced Provide pads 11, then all here Butt joints 13 connected to each other in a liquid-tight manner are.
- This solder connection is made in a special way in such a way that between the shells 6 'of thin Stainless steel sheet conforming shells made of thin "solder foil", like copper foil (not shown) are inserted, whereby then the whole stack of dishes is heated up and the Cu foils are melted.
- Shells 6 'or partitions 6 are designed so that there where necessary, three overflow openings at the top and bottom exhibit.
- rib embossments (not particularly shown) with a small, too small gap width leading embossing depth provided and in the container part 1 '' those with greater embossing depth.
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Water Supply & Treatment (AREA)
- Combustion & Propulsion (AREA)
- Devices For Dispensing Beverages (AREA)
- Instantaneous Water Boilers, Portable Hot-Water Supply Apparatuses, And Control Of Portable Hot-Water Supply Apparatuses (AREA)
- Details Of Fluid Heaters (AREA)
- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
- Cookers (AREA)
Abstract
Description
Die Erfindung betrifft ein Durchlaufgerät mit kleinem Volumen
zur Trinkwassererwärmung, insbesondere für den Einbau in und
für die Verschaltung mit Gasdurchlauferhitzern, gemäß Oberbegriff
des Patentanspruches 1.The invention relates to a flow device with a small volume
for DHW heating, especially for installation in and
for the connection with gas flow heaters, according to the generic term
of
Durchlaufgeräte der genannten Art sind bspw. nach der WO-A-92/11501 bekannt, und zwar in Form von Plattenwärmetauschern mit einer Ausbildung dahingehend, daß zwei oder mehr einzelne solcher Plattenwärmetauscher zwecks Vergrößerung der Wärmetauschfläche unmittelbar zusammengekoppelt werden können. Bekannt ist auch, derartige Durchlaufgeräte mit Gasdurchlauferhitzern (siehe bspw. EP-A-0427121 A2) zu kombinieren bzw. hydraulisch zu verschalten. Nachteilig ist bei solchen Kombiwasserheizern, an denen in der Regel auch noch ein Heizungskreis angeschlossen ist, daß nach dem Zapfen der im relativ kleinen Volumen gespeicherten Trinkwassermenge ein spürbares "Durchsacken" der Warmwasserauslauftemperatur zu beobachten ist, d.h., bei bestimmten Betriebszuständen (bspw. gleitende Betriebsweise - Sommerbetrieb) steht bei Zapfbeginn nicht die zur komfortablen Brauchwassererwärmung erforderliche Heizwassertemperatur zur Verfügung.Continuous flow devices of the type mentioned are, for example, according to WO-A-92/11501 known, in the form of plate heat exchangers with an education that two or more individual such plate heat exchanger for the purpose of enlarging the heat exchange surface can be directly coupled together. It is also known to use such flow devices with gas flow heaters (see for example EP-A-0427121 A2) to combine or to connect hydraulically. A disadvantage of such Combi water heaters, which usually also have a Heating circuit is connected that after the tenon in relatively small volume of stored drinking water noticeable "sagging" of the hot water outlet temperature is observed, i.e. in certain operating states (e.g. smooth operation - summer operation) is at the start of the tap not the one required for convenient domestic water heating Heating water temperature available.
Der Erfindung liegt demgemäß die Aufgabe zugrunde, ein Durchlaufgerät zu schaffen, das diesen Nachteil nicht aufweist, d.h., ausgehend von einem Durchlaufgerät der eingangs genannten Art, soll dieses bei kompakter Bauweise dahingehend auf einfache Weise umgestaltet und verbessert werden, daß das sogenannte "Durchsacken" der Warmwasserauslauftemperatur vermieden bzw. zumindest erheblich abgemindert wird.The invention is therefore based on the object, a continuous flow device to create that does not have this disadvantage, i.e. based on a continuous flow device of the type mentioned at the beginning Kind, this should go with a compact design easily redesigned and improved that the so-called "sagging" of the hot water outlet temperature is avoided or at least considerably reduced.
Diese Aufgabe ist mit einem Durchlaufgerät der eingangs genannten
Art nach der Erfindung durch die im Kennzeichen des
Patentanspruches 1 angeführten Merkmale gelöst. Vorteilhafte
Weiterbildungen ergeben sich nach den abhängigen Patentansprüchen
2 bis 7. This task is with a flow device of the type mentioned
Kind according to the invention by the in the characteristics of
Diese erfindungsgemäße Ausbildung bedeutet, daß der wamwasserabströmseitige Behälterteil mit hohem Wirkungsgrad bzgl. der Wärmeübertragung und der kaltwasserzuströmseitige Behälterteil als "Speicherteil" mit geringerem Wirkungsgrad arbeitet, wobei bei grundsätzlich relativ kleinem hydraulischen Gesamtvolumen des Durchlaufgerätes der gesamte trinkwasserseitige Inhalt mit max. 3 Ltr so bemessen und verteilt ist, daß der "Speicherteil" ein größeres Trinkwasservolumen aufzunehmen vermag als der warmwasserabströmseitige Behälterteil. Diese Aufteilung reicht dann nämlich aus, um beim Zapfen die "Totzeit" zu überbrücken, die, wie erwähnt, dann entsteht, wenn nicht die erforderliche Heizwassertemperatur sofort verfügbar ist.This inventive design means that the wastewater downstream Container part with high efficiency regarding heat transfer and the cold water inflow side of the tank works as a "storage part" with lower efficiency, being basically relatively small hydraulic Total volume of the flow device the entire drinking water side Content with max. 3 liters is measured and distributed that the "storage part" accommodate a larger volume of drinking water is capable of serving as the part of the tank downstream of the hot water. This division is then sufficient to the when tapping To bridge "dead time", which, as mentioned, then arises, if the required heating water temperature is not immediately available is.
Diese erfindungsgemäße Lösung beschränkt sich also nicht auf regelungs- und steuerungstechnische bekannte Maßnahmen zur im obigem, Sinne komfortablen Brauchwasserbereitstellung (siehe hierzu ebenfalls die EP-A-0427121 A2), sondern setzt auch durch entsprechende Gestaltung am Durchlaufgerät selbst an, d.h., von Zeit zu Zeit wird der volumenmäßig größere Speicherteil durch Wärmezufuhr auf "Bereitschaftstemperatur" gehalten.This solution according to the invention is therefore not limited to Known regulatory and control measures for im above, meaning convenient hot water supply (see also EP-A-0427121 A2), but also sets by appropriate design on the flow device itself, i.e. from time to time the larger part of the storage volume becomes kept at "standby temperature" by supplying heat.
Der höhere Wirkungsgrad im warmwasserabströmseitigen Behälterteil wird dabei zum einen durch besondere Gestaltung der Trennwände und damit Breite der Spalträume erreicht und zum anderen bevorzugt in Verbindung mit einer Gegenstromführung in diesem Behälterteil, was noch näher erläutert wird.The higher efficiency in the part of the tank on the hot water outlet side is on the one hand by special design of the Partitions and thus the width of the gap spaces reached and others preferred in connection with a countercurrent flow in this part of the container, which will be explained in more detail.
Ungeachtet der Maßgabe, daß die genannten Kalt- und Warmwasser- und ferner die Heizwasservor- und -rücklaufanschlüsse "am jeweils anderen Behälterteil" anzuordnen sind, werden alle diese Anschlüsse bevorzugt auf der gleichen Seite des Durchlaufgerätes angeordnet, um dessen Gesamtanschluß zu vereinfachen.Regardless of the proviso that the cold and hot water and also the heating water supply and return connections are to be arranged "on the other part of the container", all these connectors are preferred on the same side of the Flow device arranged to simplify its overall connection.
Das erfindungsgemäße Durchlaufgerät und seine vorteilhaften Ausführungsformen und bevorzugten Weiterbildungen werden nachfolgend an Hand der zeichnerischen Darstellung von Ausführungsbeispielen näher erläutert. The flow device according to the invention and its advantageous Embodiments and preferred further developments are below based on the graphic representation of exemplary embodiments explained in more detail.
Es zeigt
- Fig. 1
- perspektivisch und schematisch die innere Aufgliederung des Durchlaufgerätes durch Trennwände einschließlich der bevorzugten Strömungsführungen;
- Fig. 2
- schematisch das Verschaltungsschema des Durchlaufgerätes in bevorzugter Ausführungsform bei einseitiger Anordnung aller Anschlüsse;
- Fig. 3
- im Schnitt einen Teil des Behälters mit einer besonderen Ausführungsform der Trennwände;
- Fig. 3 A
- schematisch eine weitere Ausführungsform der Ausbildung der Spalträume;
- Fig. 3 B
- perspektivisch die bevorzugte Ausführungsform der Trennwände;
- Fig. 4
- perspektivisch das Durchlaufgerät in Außenansicht und
- Fig. 5
- das Schaltschema des Durchlaufgerätes in Ver-bindung mit einem Wärmeerzeuger und zugehörigem Heizkreis.
- Fig. 1
- perspectively and schematically the internal breakdown of the flow device by partitions including the preferred flow guides;
- Fig. 2
- schematically the circuit diagram of the flow device in a preferred embodiment with one-sided arrangement of all connections;
- Fig. 3
- in section a part of the container with a special embodiment of the partitions;
- Fig. 3 A
- schematically a further embodiment of the formation of the gap spaces;
- Fig. 3B
- in perspective the preferred embodiment of the partitions;
- Fig. 4
- perspective of the flow device in external view and
- Fig. 5
- the circuit diagram of the flow unit in connection with a heat generator and associated heating circuit.
In den Fig. 1 bis 5 sind sämtliche, sich entsprechende Elemente mit sich entsprechenden Bezugszeichen bezeichnet, d.h., der Behälter mit 1, dessen diesen gliedernde Behälterteile mit 1', 1" der Kaltwasserzulaufanschluß mit 2, der Warmwasserablaufanschluß mit 3 und die Heizwasservor- und - rücklaufanschlüsse mit 4 und 5.1 to 5 are all corresponding elements designated with corresponding reference symbols, i.e. the container with 1, the container parts dividing them with 1 ', 1 "the cold water inlet connection with 2, the hot water outlet connection with 3 and the heating water supply and - return connections with 4 and 5.
Außerdem sind in Fig. 5 ein Wärmeerzeuger (Gasdurchlauferhitzer) mit WE, der an diesen angeschlossene Heizkreis mit HK und das zu einer kompakt bauenden Baueinheit aus den beiden Behälterteilen 1', 1'' zusazumengefaßte Durchlaufgerät mit DG.In addition, in Fig. 5 are a heat generator (gas heater) with WE, the heating circuit connected to this with HK and that to a compact unit from the two Container parts 1 ', 1' 'continuous flow device with DG.
Für alle dargestellten Ausführungsbeispiele ist nun, abgesehen
von den dargestellten und unterschiedlichen Verschaltungsmöglichkeiten,
wesentlich, daß der warmwasserabström
seitige Behälterteil 1' des Behälters 1 mit einem kleineren
Volumen bemessen ist als der kaltwasserzuströmseitige Behälterteil
1'' des Behälters 1, daß die Kaltwasserzulauf- und
Warmwasserablaufanschlüsse 2,3 und die Heizwasservor- und
-rücklaufanschlüsse 4,5 am jeweils anderen Behälterteil
1',1'' angeordnet sind, wobei die im kleineren Behälterteil
1' angeordneten Trennwände 6, flächendifferentiell gesehen,
einen in Bezug auf die Trennwände 6 im anderen Behälterteil
1'' größeren Wärmeübergang aufweisen, und daß die Spalträume
7,8 jeweils untereinander derart verbunden sind, daß in den
Behälterteilen 1',1' eine Gleichstrom- und/oder Gegenstromverschaltung
bezüglich der beiden Durchströmmedien vorliegt.For all of the exemplary embodiments shown, it is now essential, apart from the different and illustrated connection options, that the hot water outflow-side container part 1 'of the
Wesentlich ist dabei auch, daß unter Inkaufnahme eines höheren
Druckverlustes die Trennwände 6 im kleineren Behälterteil,
flächendifferentiell gesehen, einen größeren Wärmeübergang
aufweisen als die im größeren Behälterteil 1''.It is also essential that a higher
Pressure loss the
In der schematischen Darstellung gemäß Fig. 1 sind die Trennwände
6 lediglich aus Übersichtsgründen extrem distanziert
zueinander dargestellt, d.h., die die Spalträume 7, 8 begrenzenden
Trennwände 6 haben eine Distanz in der Größenordnung
von nur ca. 2-10 mm, wobei die Spalträume 7, 8 im Gegensatz
zur Darstellung in Fig. 1 im Behälterteil 1' enger gehalten
sind als im anderen Behälterteil 1''. Außerdem hat man sich
die Spalträume 7, 8 einschließlich der Umlenkkammer 9 nach
außen natürlich abgeschlossen vorzustellen, wie sich dies aus
Fig. 4 ergibt.1 are the
Die Heizwasserführung ist dabei strichpunktiert und die
Trinkwasserführung gestrichelt und jeweils mit Richtungspfeilen
verdeutlicht, wobei es sich hierbei, was aufgrund der
Richtungspfeile keiner näheren Erläuterung bedarf, um die
bevorzugte Verschaltung der Spalträume 7, 8 handelt, nämlich
Gleichstrom im Behälterteil 1'' und Gegenstrom im Behälterteil
1'. The heating water supply is dash-dotted and the
The drinking water supply is dashed and each with directional arrows
illustrates, which is what due to the
Directional arrows require no further explanation in order to
preferred interconnection of the
Beim Verschaltungsschema nach Fig. 2 sind der Heizungsrücklauf
HR und der Kaltwasserzulauf KW auf der gleichen Seite
wie der Heizungsvorlauf HV und der Warmwasserablauf am Durchlaufgerät
angeordnet, um, wie einleitend vorerwähnt, bequemere
Anschlußmöglichkeiten zu erhalten. Beim Verschaltungsschema
nach Fig. 1 bleibend, wäre es aber auch möglich, ggf.
unter Zwischenschaltung einer weiteren Umlenkkammer, den Behälterteil
1'' gewissermaßen um 180° zu knicken, um damit die
Anschlüsse 2 und 5 auf die gleiche Seite zu bringen wie die
Anschlüsse 3 und 4.2 are the heating return
HR and the cold water inlet KW on the same side
such as the heating flow HV and the hot water drain on the flow device
arranged to, as mentioned in the introduction, more convenient
To get connectivity. With the wiring diagram
1, it would also be possible, if necessary
with the interposition of a further deflection chamber, the container part
1 '' to a certain extent by 180 ° so that the
Bring
Abgesehen davon, daß die Spalträume 7 oder 8 auch durch einzeln
vorgefertigte, an sich bekannte Taschen T (siehe Fig. 3
A) verwirklicht werden können, zwischen denen sich die jeweils
anderen Spalträume befinden (Über- bzw. Durchströmkanäle
6'' sind in Fig. 3 A nicht dargestellt), kann auch eine
Ausführungsform des Durchlaufgerätes gemäß Fig. 3 vorgesehen
werden, wonach die Trennwände 6 in Form von Schalen 6' mit
ausgehalsten, die Spalträume 7, 8 durchgreifenden Überströmkanälen
6" und dazu fluchtenden Einstecköffnungen 6''' in der
jeweils benachbarten Trennwand 6 ausgebildet und diese Trennwände
6 mit ihren Schalenrändern 10 zusammengestapelt an allen
Stoßstellen 13 miteinander flüssigkeitsdicht (bspw. durch
Verlöten) verbunden sind.Apart from the fact that the
Für die Trennwände 6 bzw. die Ausbildung des ganzen Durchlaufgerätes
werden jedoch Trennwände 6 gemäß Fig. 3 B bevorzugt,
die an sich bekannt sind, mit Rücksicht auf kompakte
Bauweise und die engen Einbauverhältnisse in einem Gasdurchlauferhitzer
hier-aber besondere Bedeutung erhalten. Hiernach
sind die Trennwände 6 ebenfalls in Form von Schalen 6' ausgebildet
und mit im Bereich ihrer Überströmöffnungen 10 mit
prägungsfreien, jeweils entgegengesetzt gerichtet ausgeprägten
Anschlußflächen 11 versehen, wobei dann auch hier alle
Stoßstellen 13 miteinander flüssigkeitsdicht verbunden
sind. Diese Lötverbindung erfolgt hierbei auf besondere Art
in der Weise, daß zwischen den Schalen 6' aus bspw. dünnem
Edelstahlblech formentsprechende Schalen aus dünner "Lötfolie",
wie Cu-Folie (nicht dargestellt) eingelegt sind, wobei
dann der ganze Schalenstapel hoch erhitzt wird und dabei die
Cu-Folien zum Schmelzen gebracht werden.For the
Unter nochmaligen Verweis auf das Verschaltungsschema nach
Fig. 2 besteht natürlich auch die Möglichkeit, derartige
Schalen 6' bzw. Trennwände 6 so zu gestalten, daß diese, dort
wo es notwendig ist, oben und unten jeweils drei Überströmöffnungen
aufweisen.With another reference to the wiring diagram
Fig. 2 is of course also possible
Shells 6 'or
Was die Maßgabe betrifft, daß die Trennwände 6 im kleineren
Behälterteil 1' einen größeren Wärmeübergang haben als die im
größeren Behälterteil 1'', so ist dies, abgesehen von möglichen
Materialwahl mit größerer Wärmeleitfähigkeit bevorzugt
dadurch verwirklicht, daß mindestens die im Behälterteil 1'
angeordneten Trennwände 6 mit die Wärmetauschflächen vergrössernden
Prägungen, wie Rippen-, Kreuzrippen-, Noppenprägungen
od. dgl. versehen sind. Da solche Prägungen an Wärmetauschern
und auch ganz allgemein im Heizkesselbau bekannt sind, ist
dies hier nicht besonders dargestellt. Die Maßgabe, daß solche
Prägungen mindestens an den Trennwänden des Behälterteiles
1' vorgesehen sein sollen, schließt natürlich die Möglichkeit
mit ein, auch die Trennwände 6 im Behälterteil 1''
mit solchen Prägungen zu versehen, die dann aber so ausgewählt
und gestaltet werden, daß sich bei geringerem Wärmeübergang
in diesem Teil auch ein geringerer Druckverlust ergibt.
Im Ergebnis führt dies dazu, daß der Behälterteil 1'
einen größeren Wirkungsgrad hat als der Behälterteil 1''.As for the proviso that the
Im Behälterteil 1' werden also bspw. Rippenprägungen (nicht besonders dargestellt) mit kleiner, zu geringerer Spaltraumbreite führenden Prägetiefe vorgesehen und im Behälterteil 1'' solche mit größerer Prägetiefe.For example, rib embossments (not particularly shown) with a small, too small gap width leading embossing depth provided and in the container part 1 '' those with greater embossing depth.
Claims (7)
- A small-volume flow-type heating appliance for heating drinking water, in particular, for assembly into, and wiring, with gas flow heaters, composed of a container (1) having cold water in-flow and hot water off-flow connections (2, 3) as well as heating water forward- and return flow- connections (4, 5), wherein the container (1) is provided with partitions (6) for forming a plate heat exchanger, with the partitions (6) confining split-off compartments (7, 8) carrying, in series and alternately, drinking water and heating water,
characterized in that the hot water off-flow-sided container section (1') of container (1) is smaller dimensioned than the cold water in-flow-sided container section (1") of container (1),
that the cold water in-flow- and hot water off-flow connections (2, 3) as well as the heating water forward- and return-flow connections (4,5) are provided in the respectively other container section (1'1"), with the partitions (6) arranged in the smaller container section (1'), under consideration of surface differences, are of a larger heat transfer relative to the partitions (6) in the other container section (1"), and
that the split-off compartments (7, 8) respectively are so interconnected as to provide a concurrent and/or counter-current wiring relative to the two flow fluids. - A flow-type heating appliance according to claim 1,
characterized in that all connections (2 through 5) are provided on one side of the container (1). - A flow-type heating appliance according to claims 1 or 2,
characterized in that the split-off compartments (7,8) carrying drinking water and process water are respectively so interconnected, that provided in container section (1") is a concurrent wiring and in container section (1') a counter-current wiring. - A flow-type heating appliance according to any one of claims 1 through 3,
characterized in that no less than one reversing chamber (9) equally confined by the partitions (6) is arranged between the container sections (1', 1"). - A flow-type heating appliance according to any one of claims 1 through 4,
characterized in that at least the partitions (6) disposed in container section (1') are provided with impressions, such as rib-, lattice- or snap-tyye impressions, which enlarge the heat-exchanging surfaces. - A flow-type heating appliance according to any one of claims 1 through 5,
characterized in that partitions (6) are in the form of cups (6) and, in the area of their overflow openings (10), are provided with connecting surfaces (11), clear of ribbed impressions and oriented in a direction opposite the partition plane, and that all joints (13) are interconnected in a fluid-tight way. - A flow-type heating appliance according to any one of claims 1 through 5,
characterized in that partitions (6) are in the form of cups (6') having grooved overflow passageways (6") extending through the split-off compartments (7, 8), and that plug-in openings (6"') in registry therewith are formed in the respectively neighbouring partitions (6), and that the said partitions (6) stacked together with the cup edges (12) thereof, at all joints (13) are interconnected in a fluid-tight way.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19842613A DE19842613C1 (en) | 1998-09-17 | 1998-09-17 | Through flow heater for drinking water and heating system has the drinking water heated by a larger section, with ducted flow through gas heated sections, prevents sudden temp. changes |
| DE19842613 | 1998-09-17 | ||
| PCT/DE1999/002909 WO2000016011A1 (en) | 1998-09-17 | 1999-09-15 | Low-volume continuous-flow device for heating drinking water |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP1032793A1 EP1032793A1 (en) | 2000-09-06 |
| EP1032793B1 true EP1032793B1 (en) | 2003-08-20 |
Family
ID=7881288
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP99955689A Expired - Lifetime EP1032793B1 (en) | 1998-09-17 | 1999-09-15 | Low-volume continuous-flow device for heating drinking water |
Country Status (6)
| Country | Link |
|---|---|
| EP (1) | EP1032793B1 (en) |
| AT (1) | ATE247805T1 (en) |
| DE (2) | DE19842613C1 (en) |
| ES (1) | ES2201799T3 (en) |
| TR (1) | TR200001381T1 (en) |
| WO (1) | WO2000016011A1 (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE20101378U1 (en) | 2001-01-26 | 2002-05-29 | Viessmann Werke GmbH & Co., 35108 Allendorf | heat exchangers |
| DE102007028656B4 (en) * | 2007-06-21 | 2013-08-14 | Robert Bosch Gmbh | Boiler |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| BE439874A (en) * | ||||
| AT394771B (en) * | 1989-11-07 | 1992-06-25 | Vaillant Gmbh | METHOD AND DEVICE FOR CARRYING OUT THE METHOD FOR IMMEDIATELY TAPING WARM HOT WATER |
| SE502254C2 (en) * | 1990-12-17 | 1995-09-25 | Alfa Laval Thermal Ab | Plate heat exchanger and method for producing a plate heat exchanger |
-
1998
- 1998-09-17 DE DE19842613A patent/DE19842613C1/en not_active Expired - Fee Related
-
1999
- 1999-09-15 WO PCT/DE1999/002909 patent/WO2000016011A1/en active IP Right Grant
- 1999-09-15 EP EP99955689A patent/EP1032793B1/en not_active Expired - Lifetime
- 1999-09-15 ES ES99955689T patent/ES2201799T3/en not_active Expired - Lifetime
- 1999-09-15 AT AT99955689T patent/ATE247805T1/en not_active IP Right Cessation
- 1999-09-15 TR TR2000/01381T patent/TR200001381T1/en unknown
- 1999-09-15 DE DE59906672T patent/DE59906672D1/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| DE59906672D1 (en) | 2003-09-25 |
| DE19842613C1 (en) | 2000-02-10 |
| WO2000016011A1 (en) | 2000-03-23 |
| EP1032793A1 (en) | 2000-09-06 |
| TR200001381T1 (en) | 2001-01-22 |
| ATE247805T1 (en) | 2003-09-15 |
| ES2201799T3 (en) | 2004-03-16 |
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