EP0338120B1 - Boiler-storage heater unit - Google Patents
Boiler-storage heater unit Download PDFInfo
- Publication number
- EP0338120B1 EP0338120B1 EP88119080A EP88119080A EP0338120B1 EP 0338120 B1 EP0338120 B1 EP 0338120B1 EP 88119080 A EP88119080 A EP 88119080A EP 88119080 A EP88119080 A EP 88119080A EP 0338120 B1 EP0338120 B1 EP 0338120B1
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- EP
- European Patent Office
- Prior art keywords
- housing
- storage tank
- water
- nozzle
- overflow
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- 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
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- 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
- F24H1/48—Water heaters for central heating incorporating heaters for domestic water
- F24H1/50—Water heaters for central heating incorporating heaters for domestic water incorporating domestic water tanks
Definitions
- the invention relates to a boiler storage combination, consisting of a lower, water-bearing housing containing the firing, on which a likewise water-conducting, housing containing the vertically oriented storage container is arranged and the storage container is provided with hot water drainage and cold water supply lines, the water-carrying interiors of the two Connect the housing to each other through an overflow nozzle.
- the introduction of the cold water supply line from below to the storage tank is also known, which on the one hand has the advantage that the cold water supply line can be used to empty the storage tank in the event of need cleaning, but on the other hand such a lower approach of the cold water supply line to the Storage tank connected with the disadvantage that the cold water supply line that is introduced and extends through the interior of the water-carrying housing is fully from the lower one Housing part is exposed to hot water flowing up, which can lead to rapid calcification.
- Another disadvantage of such boiler / storage combinations is that the circulation of the heat transfer medium in both housings leaves something to be desired due to the cross-sectional connection.
- the two housing parts are liquid-tight but separable, which is usually always desirable, this is associated with considerable manufacturing and construction costs, since the two housing parts fit together well and relatively large connection flanges must be provided. If you want to improve the circulation conditions within the two housing interiors, this requires the arrangement of specially arranged and trained baffles in a relatively complex manner, which further increases the manufacturing and construction costs.
- the invention is therefore based on the object to improve a boiler storage combination of the generic type in such a way that the two parts of the combination can be connected to one another in a simple manner, but with the proviso that at the same time for an improved circulation of the heat transfer medium in the overall boiler and to ensure that the cold water supply line from below to the storage tank is not loaded with rising hot water.
- the hot water rising from the hottest, burner-side area of the furnace is directed into the gap between the housing wall and the storage tank on the same side, which then rises in this gap area and heats up the storage tank there, while the correspondingly cooled heat transfer medium for the storage tank, since there is no other way available, flows back to the rear overflow nozzle on the other side in order to get back into the lower housing through it.
- a temperature difference of the heat transfer medium, measured at the front and rear overflow connection of approximately 10 ° C. can be measured.
- the flow channel provided in the design of the combination in the lower housing according to the invention advantageously also ensures that the heat transfer medium flowing out and cooled from the upper housing does not directly hit the wall of the furnace part, but can flow shielded to the side and flow to the side of the furnace lower housing again in the lower area of the firing part.
- the cold water supply line can also be easily led from below to the upper housing, this line practically not coming into contact with rising hot water from the lower housing.
- an advantageous development applicable to both solutions consists in the fact that an annular collar which penetrates the bottom of the upper housing in a liquid-tight manner is arranged in the middle of the bottom of the storage container and the cold water supply line is connected to the bottom of the storage container within this collar. In this case, the cold water supply line advantageously does not come into contact with the heat transfer medium at all.
- a curved bottom is also provided for this container bottom, which is then provided with flat features for the problem-free connection of the two overflow nozzles, the an expression advantageous with respect to the interior of the housing inwards and which is designed for the other nozzle outwards.
- the two overflow nozzles are provided at their free ends with connecting flanges and connected to flange seat embossments on the wall of the lower housing, i.e. the overflow nozzles are directly in the area of the above-mentioned flat surface expressions at the bottom of the connected upper housing, which has corresponding punched openings in the connection area. Due to the flange seat embossing obtained directly from the wall of the lower housing the additional production and welding is saved by means of additional sockets on the lower housing. Of course, it would also be possible to weld the two overflow nozzles to the wall of the lower housing and to provide the bottom of the upper housing with corresponding flange seat embossments. In both cases, the flange seat embossments are provided with welded-on stud bolts, with the help of which the respective connection flange can be tightened with the interposition of a flange seal.
- the combination is advantageously designed in such a way that the foremost wall region of the inflow nozzle in relation to the burner side of the housing is arranged as close as possible to the wall region of this housing adjoining the bottom of the upper housing.
- the cross section of the front overflow nozzle can advantageously be designed in the form of an elongated hole corresponding to the curvature of the inflow gap in the upper housing.
- the heating water is no longer circulated by gravity, but via a charging pump in such a way that a line with a charging pump attaches to the top of the heating jacket of the hot water tank.
- the boiler can be operated as a regulated tank in the normal way, ie when the intended hot water temperature has been reached in the hot water tank, the pump switches off. By taking hot water and if the If the storage tank is to be heated again, the pump switches on again.
- the design according to the invention also has the advantage that the hot water from the boiler heats up the lower region of the store, which ensures that no cold zones can arise in the hot water tank and germs introduced with the cold water, e.g. Legionella can also be killed in the lower area of the hot water tank.
- the boiler-storage combination consists of a lower, water-bearing, containing the furnace 19 Housing 1, on which the likewise water-bearing housing 2, which contains the vertically oriented storage container 4, is arranged and the storage container 4 is provided with a warm water drainage line and cold water inflow line 11.
- the water-carrying interiors of the two housings 1, 2 are connected to one another.
- between the two housings 1, 2 are a front, arranged above the burner side 1 'of the lower housing 1 and directed to the gap 3 between the storage tank 4 and its housing 2 overflow nozzle 5 and a rear, on the rear bottom half 6 'of the storage tank 4 directed overflow 7 provided.
- the lower housing 1 there is a flow guide channel 9, which shields the mouth 8 of the rear overflow nozzle 7 and has openings 10 on both sides, from which, as indicated by arrows in FIG. 2, the outflowing and cooled water flows into the lower region of the housing 1 along the wall 17 can flow.
- the almost ideal circulation flow resulting from this arrangement is illustrated by arrows 20 in FIG. 1.
- the space between the two housings 1, 2 is used for the approach of the cold water inflow line 11, which is connected in a correspondingly curved manner directly from below to the housing 2 or the storage tank 4.
- the cold water inflow line 11 does not come into contact with the circulating heat transfer medium at all. Even if such a collar 14 were not provided, the heat load on the extremely short line section that would be exposed to the heat transfer medium would be minimal, especially since this passage area would already be covered by the outflowing colder heat transfer medium.
- the collar 14 also fulfills a stiffening function for the bottom 12 of the housing.
- the two overflow ports 5, 7 are provided at their free ends with connecting flanges 15 and connected to flange seat embossments 16 of the wall 17 of the housing 1.
- the flanges and the flange seat embossings 16 could also be provided in reverse, i.e. the bottom 12 would then be provided with flange seat embossments and the two sockets 5, 7 would be welded directly to the wall 17 in the area of corresponding openings.
- the wall 17 could easily be provided with flat connection embossments in order not to have to punch out the sheet metal blanks for the formation of the two connecting pieces 5, 7 on one side with a corresponding curve.
- the flange seat formations 16 could also be in the form of welded and appropriately embossed rings, as shown, directly on the housing wall.
- the front overflow nozzle 5 can be designed in the sense of FIG. 3, namely in such a way that the cross section of the front overflow nozzle is in the form of an elongated hole 18 which is curved in accordance with the curvature of the gap 3. This results in an even better flow of the heat transfer medium, oriented to the shape of the gap 3.
- FIGS. 4, 5 relate to the same circulation and arrangement principle, but differ from the one described above in that there is a forced circulation through the connecting line 22 provided with the charging pump 21.
- the connection line 22 which runs outside is expediently and advantageously connected to an emptying nozzle 23 going out at the lowest point of the housing.
- the upper housing 2 lacks a supporting leg
- the rear wall 24 of the lower housing 1 is provided with an extension 25 which supports the upper housing 2 and which is connected in a suitable manner to the bottom 12 of the upper housing 2.
- FIG. 5 differs from that according to FIG. 4 in that in this case the connecting line 22 inside the housing 2, as shown. is guided downwards and is connected to the lower housing 1.
- the line 22 is expediently divided at a suitable point and flanged at this point or connected to a connecting fitting 26 such as the inflow nozzle 5 in FIG. 4.
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Thermal Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Heat-Pump Type And Storage Water Heaters (AREA)
- Instantaneous Water Boilers, Portable Hot-Water Supply Apparatuses, And Control Of Portable Hot-Water Supply Apparatuses (AREA)
- Commercial Cooking Devices (AREA)
- Air Supply (AREA)
- Control Of Steam Boilers And Waste-Gas Boilers (AREA)
- Details Of Fluid Heaters (AREA)
Abstract
Description
Die Erfindung betrifft eine Heizkessel-Speicherkombination, bestehend aus einem unteren, wasserführenden, die Feuerung enthaltenden Gehäuse, auf dem ein ebenfalls wasserführendes, den vertikal orientierten Speicherbehälter enthaltendes Umschließungsgehäuse angeordnet und der Speicherbehälter mit Warmwasserabfluß- und Kaltwasserzuströmleitungen versehen ist, wobei die wasserführenden Innenräume der beiden Gehäuse miteinander durch Überströmstutzen in Verbindung stehen.The invention relates to a boiler storage combination, consisting of a lower, water-bearing housing containing the firing, on which a likewise water-conducting, housing containing the vertically oriented storage container is arranged and the storage container is provided with hot water drainage and cold water supply lines, the water-carrying interiors of the two Connect the housing to each other through an overflow nozzle.
Derartige Heizkessel-Speicherkombinationen sind hinlänglich bekannt und bedürfen insoweit keines besonderen druckschriftlichen Nachweises. Das obere, wasserführende Gehäuse für den darin eingesetzten Speicherbehälter steht dabei in der Regel mit seinem gesamten Querschnitt mit dem unteren, wasserführenden Gehäuse des Feuerungsteiles in voller Verbindung, dessen Wandung dafür entsprechend groß ausgeschnitten ist. Bei solchen Heizkessel-Speicherkombinationen ist es üblich, sowohl die Warmwasserabfuhrleitung als auch die Kaltwasserzu-fuhrleitung von oben her in den Speicherbehälter einzuführen, wobei die Kaltwasserzufuhrleitung im Inneren des Speicherbehälters bis in dessen unteren Bodenbereich verlängert ist. Bekannt ist auch die Einführung der Kaltwasserzufuhrleitung von unten an den Speicherbehälter, was einerseits mit dem Vorteil verbunden ist, daß bei entsprechender Gestaltung die Kaltwasserzufuhrleitung im Falle einer Bedarfsreinigung zum Entleeren des Speicherbehälters genutzt werden kann, andererseits ist aber eine derartige untere Heranführung der Kaltwasserzufuhrleitung an den Speicherbehälter mit dem Nachteil verbunden, daß die eingeführte und den Innenraum des wasserführenden Gehäuses durchgreifende Kaltwasserzufuhrleitung voll dem vom unteren Gehäuseteil aufströmenden Heißwasser ausgesetzt ist, was zu einer schnellen Verkalkung führen kann. Nachteilig bei derartigen Heizkessel-Speicherkombinationen ist ferner, daß die Zirkulation des Wärmeträgermediums in beiden Gehäusen durch die querschnittsgroße Verbindung zu wünschen übrig läßt. Sofern die beiden Gehäuseteile flüssigkeitsdicht, aber trennbar miteinander verbunden sind, was in der Regel immer wünschenswert ist, so ist dies mit einem beträchtlichen Fertigungs- und Konstruktionsaufwand verbunden, da die beiden Gehäuseteile gut ineinander passend zusammengefügt werden und relativ großflächige Anschlußflansche vorgesehen werden müssen. Will man dabei die Zirkulationsverhältnisse innerhalb der beiden Gehäuseinnenräume verbessern, so verlangt dies in relativ aufwendiger Weise die Anordnung besonders angeordneter und ausgebildeter Leitbleche, was den Fertigungs- und Konstruktionsaufwand weiter erhöht.Such boiler-storage combinations are well known and do not require any special printed evidence. The entire cross section of the upper, water-carrying housing for the storage container used therein is generally in full connection with the lower, water-carrying housing of the firing part, the wall of which is cut out correspondingly large for this purpose. In such boiler storage combinations, it is customary to insert both the hot water discharge line and the cold water supply line into the storage tank from above, the cold water supply line being extended inside the storage tank to its lower base area. The introduction of the cold water supply line from below to the storage tank is also known, which on the one hand has the advantage that the cold water supply line can be used to empty the storage tank in the event of need cleaning, but on the other hand such a lower approach of the cold water supply line to the Storage tank connected with the disadvantage that the cold water supply line that is introduced and extends through the interior of the water-carrying housing is fully from the lower one Housing part is exposed to hot water flowing up, which can lead to rapid calcification. Another disadvantage of such boiler / storage combinations is that the circulation of the heat transfer medium in both housings leaves something to be desired due to the cross-sectional connection. If the two housing parts are liquid-tight but separable, which is usually always desirable, this is associated with considerable manufacturing and construction costs, since the two housing parts fit together well and relatively large connection flanges must be provided. If you want to improve the circulation conditions within the two housing interiors, this requires the arrangement of specially arranged and trained baffles in a relatively complex manner, which further increases the manufacturing and construction costs.
Der Erfindung liegt demgemäß die Aufgabe zugrunde, eine Heizkessel-Speicherkombination der gattungsgemäßen Art dahingehend zu verbessern, daß die beiden Teile der Kombination in einfacher Weise miteinander verbunden werden können, dies aber mit der Maßgabe, dabei gleichzeitig für eine verbesserte Zirkulation des Wärmeträgermediums im Gesamtkessel und für eine Nichtbeaufschlagung der von unten an den Speicherbehälter herangeführten Kaltwasserzuströmleitung mit aufsteigendem Heißwasser zu sorgen.The invention is therefore based on the object to improve a boiler storage combination of the generic type in such a way that the two parts of the combination can be connected to one another in a simple manner, but with the proviso that at the same time for an improved circulation of the heat transfer medium in the overall boiler and to ensure that the cold water supply line from below to the storage tank is not loaded with rising hot water.
Diese Aufgabe ist mit einer Heizkessel-Speicherkombination der eingangs genannten Art nach der Erfindung durch die im Kennzeichen des Hauptanspruches angeführten Merkmale gelöst. Unabhängig davon ist diese Aufgabe auch noch mit der Merkmalskombination gemäß Nebenanspruch 2 gelöst. Vorteilhafte Weiterbildungen und praktische Ausführungsformen ergeben sich nach den Unteransprüchen.This object is achieved with a boiler storage combination of the type mentioned according to the invention by the features stated in the characterizing part of the main claim. Irrespective of this, this task is also solved with the combination of features according to
Durch diese erfindungsgemäße Ausbildung wird gezielt das aus dem heißesten, brennerseitigen Bereich der Feuerung aufsteigende Heißwasser in den auf der gleichen Seite befindlichen Spalt zwischen Gehäusewand und Speicherbehälter geleitet, das dann in diesem Spaltbereich nach oben steigt und dort den Speicherbehälter aufheizt, während das entsprechend abgekühlte Wärmeträgermedium für den Speicherbehälter, da kein anderer Weg zur Verfügung steht, auf der anderen Seite dem hinteren Überströmstutzen wieder zuströmt, um durch diesen wieder in das untere Gehäuse zu gelangen. Bei dieser einwandfrei zu erzielenden Zirkulationsströmung kann ein Temperaturunterschied des Wärmeträgermediums, gemessen am vorderen und hinteren Überströmstutzen, von ca. 10°C gemessen werden.With this design according to the invention, the hot water rising from the hottest, burner-side area of the furnace is directed into the gap between the housing wall and the storage tank on the same side, which then rises in this gap area and heats up the storage tank there, while the correspondingly cooled heat transfer medium for the storage tank, since there is no other way available, flows back to the rear overflow nozzle on the other side in order to get back into the lower housing through it. With this circulation flow that can be achieved perfectly, a temperature difference of the heat transfer medium, measured at the front and rear overflow connection, of approximately 10 ° C. can be measured.
Die Anordnung von zwei Überströmstutzen an Heizkessel-Speicherkombinationen ist zwar grundsätzlich bekannt, dies aber nur an Kombinationen, bei denen auch der Speicherbehälter mit seiner Längsachse horizontal in seinem Gehäuse angeordnet ist und wobei die beiden Stutzen aufgrund der Länge des Speicherbehälters relativ weit voneinander entfernt sind, wodurch sich auch keine derart nahezu genau definierte Zirkulationsströmung erreichbar ist. Abgesehen davon ist dabei der brennerseitige Aufströmstutzen quer gegen den Speicherbehälter gerichtet und in dem Sinne auch nicht gezielt in einen Aufströmspalt, der im vorliegenden Fall in Vertikalerstreckung praktisch direkt über dem Aufströmstutzen gemäß Erfindung liegt.The arrangement of two overflow nozzles on boiler storage combinations is known in principle, but only on combinations in which the storage container is also arranged horizontally in its housing with its longitudinal axis and the two connections are relatively far apart due to the length of the storage container, whereby no such almost precisely defined circulation flow can be achieved. Apart from that, the burner-side inflow nozzle is directed transversely against the storage container and, in this sense, is also not specifically directed into an inflow gap which, in the present case, lies practically directly above the inflow nozzle according to the invention in the vertical direction.
Der bei der erfindungsgemäßen Ausbildung der Kombination im unteren Gehäuse vorgesehene Strömungskanal sorgt im übrigen vorteilhaft dafür, daß das aus dem oberen Gehäuse abströmende und abgekühlte Wärmeträgermedium nicht direkt auf die Wandung des Feuerungsteiles trifft, sondern abgeschirmt zu diesem zur Seite strömen kann und an der Außenwand des unteren Gehäuses wieder in den unteren Bereich des Feuerungsteiles gelangt.The flow channel provided in the design of the combination in the lower housing according to the invention advantageously also ensures that the heat transfer medium flowing out and cooled from the upper housing does not directly hit the wall of the furnace part, but can flow shielded to the side and flow to the side of the furnace lower housing again in the lower area of the firing part.
In Rücksicht auf die Anordnung der beiden Überströmstutzen ist es denkbar einfach, die beiden Gehäuseteile leicht lösbar miteinander zu verbinden. Da durch die beiden Überströmstutzen zwangsläufig ein freier Zwischenraum zwischen den beiden insoweit völlig separaten Gehäusen entsteht, kann auch problemlos die Kaltwasserzufuhrleitung von unten an das obere Gehäuse herangeführt werden, wobei diese Leitung praktisch nicht mit aufsteigendem Heißwasser aus dem unteren Gehäuse in Berührung kommt. Diesbezüglich besteht eine vorteilhafte für beide Lösungen anwendbare Weiterbildung darin, daß am Boden des Speicherbehälters mittig ein den Boden des oberen Gehäuses flüssigkeitsdicht durchgreifender Ringkragen angeordnet und innerhalb dieses Kragens die Kaltwasserzufuhrleitung an den Boden des Speicherbehälters angeschlossen ist. In diesem Falle kommt also die kaltwasserzufuhrleitung vorteilhaft überhaupt nicht mit dem Wärmeträgermedium in Berührung.In view of the arrangement of the two overflow nozzles, it is extremely simple to connect the two housing parts to one another in an easily detachable manner. Since the two overflow nozzles inevitably create a free space between the two housings that are completely separate, the cold water supply line can also be easily led from below to the upper housing, this line practically not coming into contact with rising hot water from the lower housing. In this regard, an advantageous development applicable to both solutions consists in the fact that an annular collar which penetrates the bottom of the upper housing in a liquid-tight manner is arranged in the middle of the bottom of the storage container and the cold water supply line is connected to the bottom of the storage container within this collar. In this case, the cold water supply line advantageously does not come into contact with the heat transfer medium at all.
Abgesehen davon, daß man das obere, den Speicherbehälter enthaltende Gehäuse nach unten durch eine ebenflächige Bodenwand abschließen kann, wird jedoch auch für diesen Behälterboden ein gewölbter Boden vorgesehen, der dann jedoch für den problemlosen Anschluß der beiden Überströmstutzen mit ebenflächigen Ausprägungen versehen ist, wobei die eine Ausprägung vorteilhaft in bezug auf den Innenraum des Gehäuses nach innen und die für den anderen Stutzen nach außen geprägt ausgebildet ist.In addition to the fact that the upper housing containing the storage container can be closed at the bottom by a flat bottom wall, a curved bottom is also provided for this container bottom, which is then provided with flat features for the problem-free connection of the two overflow nozzles, the an expression advantageous with respect to the interior of the housing inwards and which is designed for the other nozzle outwards.
Bezüglich der oben bereits angesprochenen leichten Teilbarkeit der beiden Gehäuse sind die beiden Überströmstutzen an ihren freien Enden mit Anschlußflanschen versehen und mit diesen an Flanschsitzprägungen der Wand des unteren Gehäuses angeschlossen, d.h., die Überströmstutzen werden im Bereich der oben erwähnten ebenflächigen Ausprägungen direkt an den Boden des oberen Gehäuses angeschlossen, der im Anschlußbereich entsprechende ausgestanzte Öffnungen aufweist. Durch die unmittelbar aus der Wand des unteren Gehäuses gewonnenen Flanschsitzprägungen wird die zusätzliche Anfertigung und Anschweißung mittels zusätzlicher Stutzen am unteren Gehäuse eingespart. Selbstverständlich wäre es auch möglich, die beiden Überströmstutzen an der Wand des unteren Gehäuses anzuschweißen und den Boden des oberen Gehäuses mit entsprechenden Flanschsitzprägungen zu versehen. In beiden Fällen sind die Flanschsitzprägungen mit aufgeschweißten Stehbolzen versehen, mit deren Hilfe der jeweilige Anschlußflansch unter Zwischenlage einer Flanschdichtung festgespannt werden kann.With regard to the easy divisibility of the two housings mentioned above, the two overflow nozzles are provided at their free ends with connecting flanges and connected to flange seat embossments on the wall of the lower housing, i.e. the overflow nozzles are directly in the area of the above-mentioned flat surface expressions at the bottom of the connected upper housing, which has corresponding punched openings in the connection area. Due to the flange seat embossing obtained directly from the wall of the lower housing the additional production and welding is saved by means of additional sockets on the lower housing. Of course, it would also be possible to weld the two overflow nozzles to the wall of the lower housing and to provide the bottom of the upper housing with corresponding flange seat embossments. In both cases, the flange seat embossments are provided with welded-on stud bolts, with the help of which the respective connection flange can be tightened with the interposition of a flange seal.
In Rücksicht auf eine optimale Zirkulationsströmung ist die Kombination im übrigen vorteilhaft derart ausgebildet, daß der in bezug auf die Brennerseite des Gehäuses vorderste Wandungsbereich des Aufströmstutzens so nah wie möglich zum darüber am Boden des oberen Gehäuses anschließenden Wandbereich dieses Gehäuses angeordnet. Aus gleichen Gründen kann der Querschnitt des vorderen Überströmstutzens vorteilhaft in Form eines der Krümmung des Aufströmspaltes im oberen Gehäuse entsprechend gekrümmten Langloches ausgebildet sein.
Die zweite, von der vorerwähnten unabhängigen Lösung besteht darin, daß auf das untere Gehäuse ein Warmwasserspeicher mit Gehäuse aufgeflanscht wird, aber anstelle von zwei Flanschverbindungen zwischen den Gehäusen nur eine vorgesehen wird, die einen sehr kleinen Querschnitt haben kann. Die Zirkulation des Heizwassers erfolgt bei dieser Kombination nicht mehr über Schwerkraft, sondern über eine Ladepumpe dergestalt, daß oben am höchsten Punkt des Heizmantels des Warmwasserspeichers eine Leitung ansetzt mit einer Ladepumpe. Hierbei wird das Wasser, das aus dem Heizmantel des Speichers oben ausströmt und dann hinten an der Rückseite des Kesselgehäuses wieder in dieses eingeleitet. Damit kann man, obwohl eine Flanschverbindung zwischen dem Kessel und dem Warmwasserspeicher besteht, den Kessel ganz normal als geregelten Speicher betreiben, d.h., wenn im Warmwasserspeicher die vorgesehene Warmwassertemperatur sich eingestellt hat, stellt sich die Pumpe ab. Durch Entnahme von Warmwasser, und wenn der Speicher wieder aufgeheizt werden soll, schaltet sich die Pumpe wieder ein. Im Gegensatz zum Bekannten kann aber, wenn durch Wärmeabstrahlung des Warmwasserspeichers oder wenn an den Warmwasserspeicher eine Zirkulationsleitung angeschlossen ist und warmes Wasser im Gebäude in der Zirkulationsleitung zirkuliert, dann aus dem Kessel warmes Wasser in den Heizmantel des Speichers strömen und den Speicher nachheizen.In view of an optimal circulation flow, the combination is advantageously designed in such a way that the foremost wall region of the inflow nozzle in relation to the burner side of the housing is arranged as close as possible to the wall region of this housing adjoining the bottom of the upper housing. For the same reasons, the cross section of the front overflow nozzle can advantageously be designed in the form of an elongated hole corresponding to the curvature of the inflow gap in the upper housing.
The second, from the aforementioned independent solution, is that a hot water tank with housing is flanged onto the lower housing, but instead of two flange connections between the housings, only one is provided, which can have a very small cross section. With this combination, the heating water is no longer circulated by gravity, but via a charging pump in such a way that a line with a charging pump attaches to the top of the heating jacket of the hot water tank. Here, the water that flows out of the heating jacket of the storage tank at the top and then is reintroduced into the back of the boiler housing at the rear. This means that although there is a flange connection between the boiler and the hot water tank, the boiler can be operated as a regulated tank in the normal way, ie when the intended hot water temperature has been reached in the hot water tank, the pump switches off. By taking hot water and if the If the storage tank is to be heated again, the pump switches on again. In contrast to what is known, if heat is radiated from the hot water storage tank or if a circulation line is connected to the hot water storage tank and hot water circulates in the building in the circulation line, then warm water can flow from the boiler into the heating jacket of the storage tank and reheat the storage tank.
Die erfindungsgemäße Ausbildung hat auch den Vorteil, daß das heiße Wasser aus dem Kessel den unteren Bereich des Speichers aufheizt, wodurch gewährleistet ist, daß im Warmwasserspeicher keine kalten Zonen entstehen können und mit dem Kaltwasser eingetragene Keime, z.B. Legionellen, auch im unteren Bereich des Warmwasserspeichers abgetötet werden.The design according to the invention also has the advantage that the hot water from the boiler heats up the lower region of the store, which ensures that no cold zones can arise in the hot water tank and germs introduced with the cold water, e.g. Legionella can also be killed in the lower area of the hot water tank.
Die neuartige Heizkessel-Speicherkombination wird nachfolgend anhand der zeichnerischen Darstellung von Ausführungsbeispielen näher erläutert.The novel boiler / storage combination is explained in more detail below with the aid of exemplary embodiments.
Es zeigt schematisch
- Fig. 1
- einen Längsschnitt durch die Kombination;
- Fig. 2
- ebenfalls einen Längsschnitt durch die Kombination, allerdings um 90° versetzt;
- Fig. 3
- einen Teilschnitt längs Linie III-III in Fig. 1, und zwar mit einer besonderen Ausführungsform des vorderen Überströmstutzens, und
- Fig. 4, 5
- im Längsschnitt zwei weitere Ausführungsformen gemäß zweiter Lösung.
- Fig. 1
- a longitudinal section through the combination;
- Fig. 2
- also a longitudinal section through the combination, but offset by 90 °;
- Fig. 3
- a partial section along line III-III in Fig. 1, with a special embodiment of the front overflow nozzle, and
- 4, 5
- in longitudinal section two further embodiments according to the second solution.
Wie ersichtlich, besteht die Heizkessel-Speicherkombination aus einem unteren, wasserführenden, die Feuerung 19 enthaltenden Gehäuse 1, auf dem das ebenfalls wasserführende, den vertikal orientierten Speicherbehälter 4 enthaltendes Gehäuse 2 angeordnet und der Speicherbehälter 4 mit Warmwasserabflußleitung und Kaltwasserzuströmleitung 11 versehen ist. Die wasserführenden Innenräume der beiden Gehäuse 1, 2 stehen dabei miteinander in Verbindung. Wie insbesondere aus Fig. 1 ersichtlich, sind zwischen den beiden Gehäusen 1, 2 ein vorderer, über der Brennerseite 1′ des unteren Gehäuses 1 angeordneter und auf den Spalt 3 zwischen Speicherbehälter 4 und dessen Gehäuse 2 gerichteter Überströmstutzen 5 und ein hinterer, auf die hintere Bodenhälfte 6′ des Speicherbehälters 4 gerichteter Überströmstutzen 7 vorgesehen. Im unteren Gehäuse 1 ist dabei ein die Ausmündung 8 des hinteren Überströmstutzens 7 abschirmender Strömungsleitkanal 9 mit beidseitigen Ausmündungen 10 vorhanden, aus denen, wie in Fig. 2 mit Pfeilen angedeutet, das abströmende und abgekühlte Wasser in den unteren Bereich des Gehäuses 1 längs der Wandung 17 strömen kann. Die sich durch diese Anordnung ergebende, nahezu ideale Zirkulationsströmung ist mit Pfeilen 20 in Fig. 1 verdeutlicht. Der Zwischenraum zwischen den beiden Gehäusen 1, 2 ist dabei für die Heranführung der Kaltwasserzuströmleitung 11 ausgenutzt, die entsprechend gebogen unmittelbar von unten an das Gehäuse 2 bzw. den Speicherbehälter 4 angeschlossen ist. Vorteilhaft ist dafür am Boden 6 des Speicherbehälters 4 mittig ein den Boden 12 des Gehäuses 2 flüssigkeitsdicht durchgreifender Kragen 14 vorgesehen, wobei innerhalb dieses Kragens 14 die Kaltwasserzufuhrleitung 11 unmittelbar an den Boden 6 des Speicherbehälters 4 angeschlossen ist. Bei dieser Ausbildung kommt also die Kaltwasserzuströmleitung 11 mit dem zirkulierenden Wärmeträgermedium überhaupt nicht in Berührung. Selbst wenn ein solcher Kragen 14 nicht vorgesehen wäre, wäre die Wärmebelastung des extrem kurzen Leitungsstückes, das dem Wärmeträgermedium ausgesetzt wäre, minimal, zumal dieser Durchgriffsbereich schon vom abströmenden kälteren Wärmeträgermedium erfaßt wäre. Der Kragen 14 erfüllt im übrigen noch eine Aussteifungsfunktion für den Boden 12 des Gehäuses. Für den Anschluß der beiden Überströmstutzen 5, 7 sind am Boden 12 des Gehäuses ebenflächige Ausprägungen 8, 8′ vorgesehen, die zudem noch für eine zusätzliche Versteifung des Bodens sorgen und ebenflächige Anschlußbereiche für die beiden Stutzen 5, 7 darstellen. In Rücksicht auf die aus Fig. 1 ersichtliche Geometrie ist die Ausprägung 8 in bezug auf den Innenraum des Gehäuses 2 nach innen und die für den Stutzen 7 nach außen geprägt ausgebildet.As can be seen, the boiler-storage combination consists of a lower, water-bearing, containing the
Für den flüssigkeitsdichten Anschluß des oberen Gehäuses 2 an das untere Gehäuse 1 sind die beiden Überströmstutzen 5, 7 an ihren freien Enden mit Anschlußflanschen 15 versehen und mit diesen an Flanschsitzprägungen 16 der Wand 17 des Gehäuses 1 angeschlossen. Wie vorerwähnt, könnten die Flansche und die Flanschsitzprägungen 16 auch umgekehrt vorgesehen werden, d.h., der Boden 12 würde dann mit Flanschsitzprägungen versehen sein und die beiden Stutzen 5, 7 wären unmittelbar an der Wand 17 im Bereich entsprechender Öffnungen angeschweißt. Auch dabei könnte die Wand 17 ohne weiteres mit ebenflächigen Anschlußprägungen versehen sein, um die Blechzuschnitte für die Ausbildung der beiden Stutzen 5, 7 nicht auf einer Seite mit einer entsprechenden Verlaufskurve ausstanzen zu müssen. Die Flanschsitzausformungen 16 könnten im übrigen auch in Form direkt auf der Gehäusewand aufgeschweißter und entsprechend geprägter Ringe, wie dargestellt, ausgebildet sein.For the liquid-tight connection of the
In Rücksicht auf die optimal angestrebte Zirkulationsströmung kann der vordere Überströmstutzen 5 im Sinne der Fig. 3 ausgebildet werden, nämlich derart, daß der Querschnitt des vorderen Überströmstutzens in Form eines der Krümmung des Spaltes 3 entsprechend gekrümmten Langloches 18 ausgebildet ist. Dadurch ergibt sich eine noch bessere an der Form des Spaltes 3 orientierte Aufströmung des Wärmeträgermediums.In view of the optimally aimed circulation flow, the front overflow nozzle 5 can be designed in the sense of FIG. 3, namely in such a way that the cross section of the front overflow nozzle is in the form of an
Bezüglich der Ausmündungen 10 des Strömungsleitkanales 9 für den hinteren Überströmstutzen 7 sei noch erwähnt, daß diese Ausmündungen 10 vorteilhaft unterhalb der oben horizontal am Feuerungsgehäuse 19 angelegten Tangente T angeordnet sind. Dadurch wird gewährleistet, daß das in den unteren Bereich des Gehäuses abströmende und abgekühlte Wärmeträgermedium nicht direkt auf das Feuerungsgehäuse 19 trifft.With regard to the
Die Ausführungsformen nach den Fig. 4, 5 betreffen zwar das gleiche Zirkulations- und Anordnungsprinzip, weichen aber insofern von der vorbeschriebenen ab, als hierbei durch die mit Ladepumpe 21 versehene Verbindungsleitung 22 eine Zwangszirkulation vorliegt. Zweckmäßig und vorteilhaft ist dabei im Falle der Fig. 4 die außen verlaufende Verbinbungsleitung 22 mit einem an der tiefsten Stelle des Gehäuses abgehenden Entleerungsstutzen 23 verbunden. Da bei dieser Ausführungsform dem oberen Gehäuse 2 gewissermaßen ein Standbein fehlt, ist die Rückwand 24 des unteren Gehäuses 1 mit einer das obere Gehäuse 2 abstützenden Verlängerung 25 versehen, die in geeigneter Weise mit dem Boden 12 des oberen Gehäuses 2 verbunden wird.The embodiments according to FIGS. 4, 5 relate to the same circulation and arrangement principle, but differ from the one described above in that there is a forced circulation through the connecting
Die Ausführungsform nach Fig. 5 unterscheidet sich von der gemäß Fig. 4 dadurch, daß hierbei die Verbindungsleitung 22 im Inneren des Gehäuses 2, wie dargestellt. nach unten geführt ist und an das untere Gehäuse 1 angeschlossen ist. Die Leitung 22 ist bei dieser Ausführungsform zweckmäßig an passender Stelle geteilt und an dieser Stelle verflanscht oder mit einem Verbindungsfitting 26 wie der Aufströmstutzen 5 in Fig. 4 verbunden.The embodiment according to FIG. 5 differs from that according to FIG. 4 in that in this case the connecting
Claims (11)
- A heating boiler tank combination composed of a lower water-carrying housing (1) accommodating the furnace, on which is mounted an equally water-carrying enclosure housing (2) accommodating the vertically oriented storage tank (4), wherein the storage tank (4) is provided with hot-water discharge and cold-water supply conduits (11,11'), with the water-carrying internal compartments of the two housings (1,2), through off-flow nozzles (5,7) are in communication with one another,
characterized in
that one of said overflow nozzles between the two housings (1,2) is formed as a front-sided upstream nozzle (5) located above the burner side (1') of the bottom housing (1) and directed to the gap (3) between the storage tank (4) and the enclosing housing (2) thereof, and the other of said overflow nozzles is formed as a downstream nozzle (7) directed to the rear bottom half (6') of the storage tank (4), and that the cold-water in-flow conduit (11) of the storage tank (4) is guided, at the lower side, out of the bottom (12) of the housing (2) into the interval (13) between the two housings (1,2). - A heating boiler storage tank combination, comprising a lower water-carrying housing (1) accommodating the furnace, on which is mounted an equally water-carrying enclosure housing (2) accommodating the vertically oriented storage tank (4), wherein the storage tank (4) is provided with hot-water discharge and cold-water supply conduits (11,11'), with the water-carrying internal compartments of the two housings (1,2) being in communication with one another through overflow nozzles (5,7),
characterized in
that one of the said overflow nozzles between the two housings (1,2) is formed and arranged as the front-sided upstream nozzle (5) provided above the burner side (1') of the bottom housing (1) and directed against the forward halt (6") of the storage tank (4) and the other of said overflow nozzles is formed as a downstream nozzle (7) provided with a loading pump (21) in the form of a connecting conduit (22) guided inwardly or outwardly from the upper area of the housing (1), and that the cold-water supply conduit (11) of the storage tank (4) is guided out of the bottom (12) of the housing (2) into the interval (13) to be disposed between the two housings (1,2). - A combination according to claim 1,
characterized in
that located in the bottom housing (1) is a flow-directing channel (9) shielding the termination (8) of the rearward overflow nozzle (7) and being provided with terminations (10) on either side. - A combination according to any one of claims 1 to 3,
characterized in
that an annular collar (14) passing through the bottom (12) of the housing (2), in liquid-tight manner, is centrally provided on the bottom (6) of the storage tank (4), and, within the said collar (14), the cold-water supply conduit (11) is connected to the bottom (6) of the storage tank (4). - A combination according to any one of claims 1,4,5,
characterized in
that the two overflow nozzles (5,7) are connected to planar embossings (8,8') of the bottom (12). - A combination according to claim 5,
characterized in
that the embossing (8) relative to the interior compartment of the housing (2) is formed inwardly and that relative to the nozzle (7) is formed outwardly. - A combination according to any one of claims 1 and 3 to 6,
characterized in
that the two overflow nozzles (5,7), at the free ends thereof, are provided with connecting flanges (15) by which they are connected to flange seat formations (16) of wall (17) of housing (1). - A combination according to any one of claims 1 to 7,
characterized in
that the wall area (5') of the nozzle (5) which, relative to the burner side (1') of the housing (1) is the foremost area, is arranged as closely as possible to the wall area (2') of the housing (2) adjoined thereabove the bottom (12) of the housing (2). - A combination according to any one of claims 1 to 8,
characterized in
that the cross-section of the front-sided overflow nozzle (5) is configured in the form of a curved oblong (18) conforming to the curvature of the gap (3). - A combination according to claim 2,
characterized in
that the connecting conduit (22) outwardly guided downwardly along the housing (2) is connected to an evacuating nozzle (23) branching from the deepest point of the housing (1). - A combination according to claim 10,
characterized in
that the rear wall (24) of the lower housing (1) is provided with an extension (25) supporting the upper housing (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| AT88119080T ATE74196T1 (en) | 1988-04-16 | 1988-11-17 | BOILER-STORAGE COMBINATION. |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE8805042U | 1988-04-16 | ||
| DE8805042U DE8805042U1 (en) | 1988-04-16 | 1988-04-16 | Boiler-storage combination |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| EP0338120A2 EP0338120A2 (en) | 1989-10-25 |
| EP0338120A3 EP0338120A3 (en) | 1990-11-28 |
| EP0338120B1 true EP0338120B1 (en) | 1992-03-25 |
Family
ID=6823014
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP88119080A Expired - Lifetime EP0338120B1 (en) | 1988-04-16 | 1988-11-17 | Boiler-storage heater unit |
Country Status (4)
| Country | Link |
|---|---|
| EP (1) | EP0338120B1 (en) |
| AT (1) | ATE74196T1 (en) |
| DE (2) | DE8805042U1 (en) |
| ES (1) | ES2031214T3 (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19737541A1 (en) * | 1997-08-28 | 1999-03-04 | Viessmann Werke Kg | Sheet metal storage container with middle part closed at both ends |
| DE29823188U1 (en) * | 1998-12-29 | 2000-05-11 | Viessmann Werke GmbH & Co., 35108 Allendorf | Boiler-storage combination |
| DE10114505B4 (en) * | 2001-03-23 | 2017-02-23 | Robert Bosch Gmbh | Heat generator for heating purposes and water heating |
| CN114111032B (en) * | 2021-12-06 | 2023-03-24 | 中船九江锅炉有限公司 | Hot water boiler system with hot water buffer tank |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB484953A (en) * | 1937-08-30 | 1938-05-12 | Karl Sudheimer | Heating jacket for boilers and the like |
| CH404924A (en) * | 1963-04-17 | 1965-12-31 | Accum Ag | boiler |
| DE1956975A1 (en) * | 1969-11-13 | 1971-05-19 | Buderus Eisenwerk | boiler |
| DE2630728A1 (en) * | 1976-07-08 | 1978-01-12 | Interliz Anstalt | HEATING BOILERS FOR OIL OR GAS FIRING AND SOLID FUEL FIRING |
| CH594210A5 (en) * | 1976-07-08 | 1977-12-30 | Charmilles Sa Ateliers | |
| FR2401388A1 (en) * | 1977-08-23 | 1979-03-23 | Nicolas Jean Paul | Boiler and hot water tank central heating unit - has refractory panels with asbestos strips to conserve heat fitted to sides, top and base |
-
1988
- 1988-04-16 DE DE8805042U patent/DE8805042U1/en not_active Expired
- 1988-11-17 EP EP88119080A patent/EP0338120B1/en not_active Expired - Lifetime
- 1988-11-17 AT AT88119080T patent/ATE74196T1/en not_active IP Right Cessation
- 1988-11-17 DE DE8888119080T patent/DE3869598D1/en not_active Expired - Lifetime
- 1988-11-17 ES ES198888119080T patent/ES2031214T3/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| ATE74196T1 (en) | 1992-04-15 |
| DE3869598D1 (en) | 1992-04-30 |
| ES2031214T3 (en) | 1992-12-01 |
| DE8805042U1 (en) | 1989-08-17 |
| EP0338120A3 (en) | 1990-11-28 |
| EP0338120A2 (en) | 1989-10-25 |
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