EP0282916A2 - Water storage heater - Google Patents

Water storage heater Download PDF

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Publication number
EP0282916A2
EP0282916A2 EP88103844A EP88103844A EP0282916A2 EP 0282916 A2 EP0282916 A2 EP 0282916A2 EP 88103844 A EP88103844 A EP 88103844A EP 88103844 A EP88103844 A EP 88103844A EP 0282916 A2 EP0282916 A2 EP 0282916A2
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EP
European Patent Office
Prior art keywords
cold water
connection
housing
length
water connection
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP88103844A
Other languages
German (de)
French (fr)
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EP0282916A3 (en
EP0282916B1 (en
Inventor
Hans Dr. Viessmann
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Individual
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Individual
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Filing date
Publication date
Priority claimed from DE8703893U external-priority patent/DE8703893U1/en
Priority claimed from DE8801491U external-priority patent/DE8801491U1/en
Application filed by Individual filed Critical Individual
Priority to AT88103844T priority Critical patent/ATE68585T1/en
Publication of EP0282916A2 publication Critical patent/EP0282916A2/en
Publication of EP0282916A3 publication Critical patent/EP0282916A3/en
Application granted granted Critical
Publication of EP0282916B1 publication Critical patent/EP0282916B1/en
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Expired - Lifetime legal-status Critical Current

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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
    • 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
    • F24H9/00—Details
    • F24H9/12—Arrangements for connecting heaters to circulation pipes
    • F24H9/13—Arrangements for connecting heaters to circulation pipes for water heaters

Definitions

  • the invention relates to a water heater according to the preamble of the main claim.
  • a domestic hot water tank of the type mentioned has been proposed according to DE-A-87 03 893 in the priority interval, wherein the storage tank is arranged in the water-carrying housing of a special gas boiler.
  • the cold water supply connection is led from below to the bottom of the storage tank and partially designed to be elastic in order to absorb thermal expansion and pressure fluctuations of the storage tank which is only attached to the top of the water-carrying housing and to keep the associated movements away from the weld seams, which would otherwise sooner or later Cracking tend.
  • the invention is therefore based on the object of improving a domestic hot water tank of the type mentioned in such a way that such weld seam stresses and weld seam cracks can be avoided as far as possible reliably in the case of weld seams which are properly applied.
  • This design according to the invention is based on the idea of being able to design the part of the cold water connection which extends in the water-carrying interior longer than previously customary in order to accommodate large expansion differences in the storage container, to increase the total bending length and thereby to be able to keep the bending movements at the cold water connection small.
  • this design according to the invention not only the entire length of the cold water connection part running in the interior can be increased, but in particular also the corrugated pipe part, of which use is also made here.
  • the actual passage and connection point between the cold water connection and the container wall is no longer provided directly on the container wall itself, but a not inconsiderable distance from it, ie the peripheral edge of the passage opening in the container wall is dimensioned so that the relevant one Part of the cold water connection can move freely in it.
  • the bottom of the storage tank in the area of the mouth of the cold water connection is provided with an indentation which is perpendicular or approximately perpendicular to the longitudinal axis of the cold water connection Mouth wall has.
  • the expansion movements in relation to a weld seam relief are already in fact complied with, namely at the Container-side connection weld, but it is also advantageously provided to support the storage-base-side and shaft-free end of the cold water connection with a support web extending in the longitudinal direction of the connection against the upper boundary wall of the indentation.
  • This support web is simply welded in the appropriate orientation on the one hand to the upper boundary wall of the indentation and on the other hand to the cold water connection pipe.
  • a small piece of pipe is advantageously simply arranged on the outside of the container wall above the cross-sectionally round or oval through opening and is connected in a suitable manner in a liquid-tight manner to the container wall, with this in the outlet region of the cold water connection pipe from this piece of pipe having the appropriate shape is liquid-tight connected to the shaft-free line connection end of the cold water connection.
  • the through opening is oriented with its main axis parallel to the longitudinal axis of the storage container.
  • the domestic hot water tank consists of a storage tank 2 with cold water supply 3 and hot water discharge connection arranged in a heating medium housing 1, the cold water connection 3 connected to the lower bottom 4 of the storage tank 2 fixed in its housing with its upper part or at least with its hot water discharge pipe over at least part of its length formed in the form of a corrugated tube 5 and the cold water connection 3 to its exit point from the interior 1 dem of the housing 1 has a length which is greater than the smallest distance between the wall of the storage container 2 and the surrounding housing 1.
  • the formed as a corrugated tube 5 Section 5 ⁇ of the cold water connection 3 forms the greater part of its length within what ser leading housing interior 1 ⁇ , the cold water connection 3 passes through the housing wall 1 ⁇ in the region of a larger opening 6 with respect to its own diameter.
  • the part of the cold water connection 3 protruding from the opening 6 extends within a hood-like cover 7 of the opening, ie the interior of this cover 7 also belongs to the interior 1 ⁇ of the housing 1.
  • the passage opening edge 8 of the cover 7 is connected to the line connection end region 9 of the cold water connection 3 connected liquid-tight.
  • the bottom 4 of the storage tank 2 is provided in the region of the mouth of the cold water connection 3 in the bottom 4 of the storage tank with an indentation 10 which has an orifice wall 12 perpendicular or approximately perpendicular to the longitudinal axis 11 of the cold water connection 3, which facilitates the integration of the shaft-free end of the cold water connection into the floor 4.
  • the bottom 13 and shaft-free end 13 of the cold water connection 3 is supported with a support web 14 extending in the longitudinal direction of the connection against the upper boundary wall 15 of the indentation 10. This avoids any stress on the ring weld seam for the integration of the shaft-free end 13.
  • the hood-like and relatively long cover 7 of the cross-sectionally round or oval through opening 6 is designed in the form of a tube piece 7 'and suitably connected in a liquid-tight manner to the peripheral edge of the through opening 6 or with a special sheet metal ring on which a connecting flange is formed, but which doesn't matter here.
  • This sheet metal ring if present and as shown, must of course then have a corresponding opening aligned with the through opening 6.
  • the particular design of the water-carrying housing 1 shown in this regard is also immaterial, ie the water-carrying housing 1 can be placed under the Bottom 4 of the storage container also form a closed housing, which then is not, as shown, in open connection to a housing of a firing part located under the housing 1.
  • the pipe section 7 ⁇ has a length which advantageously corresponds to at least one third of the length of the cold water connection 3 extending in the water-carrying interior 1 ⁇ of the housing 1 and pipe section 7 ⁇ .
  • the section 5 Well of the corrugated pipe can also be kept correspondingly long, which means that one is not forced to provide this more or less elastic part of the cold water connection with very tight and tightly folded corrugations. Therefore, the shafts 17 of the corrugated tube 5, as shown in FIG. 2, are advantageously and preferably created with a depth T that is smaller than the wavelength L.
  • the accommodation of a relatively long, with a correspondingly long elastic corrugated tube section can also be achieved in that the junction 16 of the container-side end 13 of the cold water connection 3 is arranged opposite or relatively far from the penetration point on the container wall , ie, in this case, the larger part of the cold water connection 3 extends below the bottom 4 of the storage tank.
  • the line connection end 9 can then be connected again in a liquid-tight manner to the edge of the passage opening 6, which is then kept correspondingly smaller.
  • the arrangement of a hood-like cover 7, as described above, can then be omitted.
  • Support webs 14 can, moreover, both in this embodiment and in the embodiment described above also at the line connection end 9 of the cold water water connection 3 are provided, ie, either within the cover 7 or in the second case on the container wall.

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Heat-Pump Type And Storage Water Heaters (AREA)
  • Cookers (AREA)
  • Housings, Intake/Discharge, And Installation Of Fluid Heaters (AREA)
  • Details Of Fluid Heaters (AREA)
  • Thermally Insulated Containers For Foods (AREA)

Abstract

The water storage heater consists of a storage container, arranged in a housing conducting a heating medium, with cold water supply connection and hot water delivery connection, the cold water connection, which is connected to the lower bottom of the storage container which is fixed with its upper part or at least with its hot water delivery pipe in the housing, being designed over at least a part of its length in the form of a flexible corrugated pipe. The cold water connection has as far as its point of exit from the inner space of the housing a length which is greater than the shortest distance between the wall of the storage container and of the housing surrounding the latter. In order to prevent weld seam tearing on the cold water pipe upon expansion movements of the storage container, it is envisaged that the section (5') of the cold water connection (3) designed as corrugated pipe (5) forms the greater part of its length inside the water-bearing housing inner space (1'), that the part of the cold water connection (3) projecting through the housing wall (1'') in the region of an opening (6), which in relation to its own diameter is larger, extends inside a hood-like covering (7) of the opening (6), and the penetration opening edge (8) of the covering (7) is connected to the pipe connection end region (9) of the cold water connection (3) in a liquid-tight manner. <IMAGE>

Description

Die Erfindung betrifft einen Brauchwasserspeicher gemäß Oberbegriff des Hauptanspruches.The invention relates to a water heater according to the preamble of the main claim.

Ein Brauchwasserspeicher der genannten Art ist nach dem DE-­A-87 03 893 im Prioritätsintervall vorgeschlagen worden, wobei, wobei der Speicherbehälter im wasserführenden Ge­häuse eines speziellen Gasheizkessels angeordnet ist. Bei diesem Brauchwasserspeicher ist der Kaltwasserzufuhran­schluß von unten an den Boden des Speicherbehälters heran­geführt und teilweise elastisch ausgebildet, um Wärmedeh­nungen und Druckschwankungen des nur oben im wasser­führenden Gehäuse befestigten Speicherbehälters aufnehmen und die damit verbundenen Bewegungen von den Schweißnähten fernhalten zu können, die sonst früher oder später zu Rißbildungen neigen. Da der elastische Teil des Kaltwasser­anschlusses zum einen relativ kurz gehalten und zum anderen im Durchgriffsbereich der Gehäusewand unmittelbar mit die­ser fest verbunden ist, hat sich gezeigt, daß mit dieser vorbekannten Ausbildung das Problem der Schweißnahtbela­stung und daraus resultierender Negativfolgen noch nicht einwandfrei beherrscht werden kann.A domestic hot water tank of the type mentioned has been proposed according to DE-A-87 03 893 in the priority interval, wherein the storage tank is arranged in the water-carrying housing of a special gas boiler. In this domestic hot water tank, the cold water supply connection is led from below to the bottom of the storage tank and partially designed to be elastic in order to absorb thermal expansion and pressure fluctuations of the storage tank which is only attached to the top of the water-carrying housing and to keep the associated movements away from the weld seams, which would otherwise sooner or later Cracking tend. Since the elastic part of the cold water connection on the one hand is kept relatively short and on the other hand is directly connected to the housing wall in the area of passage, it has been shown that the problem of the weld seam load and the resulting negative consequences cannot yet be properly controlled with this known design.

Der Erfindung liegt demgemäß die Aufgabe zugrunde, einen Brauchwasserspeicher der eingangs genannten Art dahingehend zu verbessern, daß derartige Schweißnahtbelastungen und Schweißnahtrisse an sich einwandfrei angelegter Schweißnähte weitestgehend sicher vermieden werden können.The invention is therefore based on the object of improving a domestic hot water tank of the type mentioned in such a way that such weld seam stresses and weld seam cracks can be avoided as far as possible reliably in the case of weld seams which are properly applied.

Diese Aufgabe ist mit einem Brauchwasserspeicher der ein­gangs genannten Art nach der Erfindung durch die im Kenn­zeichen des Hauptanspruches angeführten Merkmale gelöst, und ist außerdem auch gemäß Nebenanspruch 5 lösbar. Vorteilhafte Weiterbildungen ergeben sich nach den Unteran­sprüchen.This object is achieved with a domestic hot water tank of the type mentioned according to the invention by the features cited in the characterizing part of the main claim, and can also be achieved according to independent claim 5. Advantageous further developments result from the subclaims.

Dieser erfindungsgemäßen Ausbildung liegt der Gedanke zu­grunde, den sich im wasserführenden Innenraum erstrecktenden Teil des Kaltwasseranschlusses länger als bisher üblich ausbilden zu können, um damit große Dehnungsdifferenzen des Speicherbehälters aufzunehmen, die gesamte Biegelänge zu vergrößern und dadurch die Biegebewegungen am Kaltwasseran­schluß klein halten zu können. Durch diese erfindungsgemäße Ausbildung kann nicht nur die gesamte Länge des im Innen­raum verlaufenden Kaltwasseranschlußteiles vergrößert wer­den, sondern insbesondere auch der Wellrohrteil, von dem auch hierbei Gebrauch gemacht wird. Wesentlich ist hierbei, daß die eigentliche Durchgriffs- une Verbindungsstelle zwi­schen Kaltwasseranschluß und Behälterwand nicht mehr unmit­telbar an der Behälterwand selbst vorgesehen ist, sondern ein nicht unbeträchtliches Stück davon entfernt, d.h., der Umfangsrand der Durchgriffsöffnung in der Behälterwand ist so bemessen, daß sich der betreffende Teil des Kaltwasser­anschlusses darin frei bewegen kann. Um den Anschluß des speicherbehälterseitigen Endes des Kaltwasseranschlusses einfacher herstellen und auch auf dieser Seite eine größere Länge des Anschlußrohres vorsehen zu können, ist der Boden des Speicherbehälters im Bereich der Einmündung des Kalt­wasseranschlusses mit einer Einbuchtung versehen, die eine zur Längsachse des Kaltwasseranschlusses senkrechte oder angenähert senkrechte Einmündungswand aufweist. Durch die größere unterzubringende Länge des Kaltwasseranschlußrohres ist zwar an sich schon den Dehnungsbewegungen bezüglich einer Schweißnahtentlastung entsprochen, und zwar an der behälterseitigen Anschlußschweißnaht, zudem ist aber vor­teilhaft vorgesehen, das speicherbodenseitige und wellen­freie Ende des Kaltwasseranschlusses mit einem sich in Längsrichtung des Anschlusses erstreckenden Stützsteg gegen die obere Begrenzungswand der Einbuchtung abzustützen. Dieser Stützsteg wird einfach in entsprechender Orientie­rung einerseits an der oberen Begrenzungswand der Einbuch­tung und andererseits am Kaltwasseranschlußrohr ver­schweißt. Für die Ausbildung der die Durchgriffsöffnung abschirmenden haubenartigen Abdeckung wird vorteilhaft ein­fach ein kleines Rohrstück außen an der Behälterwand über der im Querschnitt runden oder ovalen Durchgriffsöffnung angeordnet und in geeigneter Weise flüssigkeitsdicht mit der Behälterwand verbunden, wobei im Austrittsbereich des Kaltwasseranschlußrohres aus diesem Rohrstück dieses bei entsprechender Formgebung mit dem wellenfreien Leitungsan­schlußende des Kaltwasseranschlusses flüssigkeitsdicht ver­bunden ist. Bei ovalem Querschnitt ist die Durchgriffsöff­nung mit ihrer Hauptachse parallel zur Längsachse des Speicherbehälters orientiert. Durch die auf diese Weise un­terbringbare größere Länge des Kaltwasseranschlußrohres in­nerhalb des wasserführenden Innenraumes ist es vorteilhaft möglich, einerseits den gewellten Abschnitt des Kaltwasseranschlußrohres länger auszubilden und anderer­seits die Wellungen flach zu halten, d.h., die Tiefe der Wellen so zu bemessen, daß sie kleiner ist als eine Wellen­länge. Damit sind dichte Wellenfaltungen, wie sie in der Regel für derartige elastische Rohrabschnitte üblich sind, vermeidbar, womit der Gegebenheit Rechnung getragen ist, daß erfahrungsgemäß im unteren Bereich eines Warm­wasserspeichers und auch im Rohr für die Kaltwasserzu­führung Kalk abgelagert wird, der sich in tiefen bzw. engen Falten des elastischen Rohrstückes insbesondere festsetzen und die Flexibilität dieses Abschnittes zumindest reduzie­ren würde. Bei den hier vorteilhaft und bevorzugt vorgese­henen flachen Wellungen besteht demgegenüber eine solche Gefahr nicht, d.h., bei relativ flachen Wellen bleibt der ganze Kaltwasseranschluß beweglich und gebrauchsfähig. Bis­her ist zwar ausschließlich auf einen Kaltwasseranschluß Bezug genommen, es steht aber grundsätzlich nichts entge­gen, dieses neuartige Ausbildungsprinzip auch für Warmwas­ser- oder andere Rohranschlüsse vorzusehen, soweit diese aufgrund konstruktiver Gegebenheiten entsprechenden Deh­nungsbelastungen ausgesetzt sind.This design according to the invention is based on the idea of being able to design the part of the cold water connection which extends in the water-carrying interior longer than previously customary in order to accommodate large expansion differences in the storage container, to increase the total bending length and thereby to be able to keep the bending movements at the cold water connection small. With this design according to the invention, not only the entire length of the cold water connection part running in the interior can be increased, but in particular also the corrugated pipe part, of which use is also made here. It is important here that the actual passage and connection point between the cold water connection and the container wall is no longer provided directly on the container wall itself, but a not inconsiderable distance from it, ie the peripheral edge of the passage opening in the container wall is dimensioned so that the relevant one Part of the cold water connection can move freely in it. In order to make the connection of the storage tank end of the cold water connection easier and to be able to provide a greater length of the connecting pipe on this side, the bottom of the storage tank in the area of the mouth of the cold water connection is provided with an indentation which is perpendicular or approximately perpendicular to the longitudinal axis of the cold water connection Mouth wall has. Due to the larger length of the cold water connection pipe to be accommodated, the expansion movements in relation to a weld seam relief are already in fact complied with, namely at the Container-side connection weld, but it is also advantageously provided to support the storage-base-side and shaft-free end of the cold water connection with a support web extending in the longitudinal direction of the connection against the upper boundary wall of the indentation. This support web is simply welded in the appropriate orientation on the one hand to the upper boundary wall of the indentation and on the other hand to the cold water connection pipe. To form the hood-like cover shielding the access opening, a small piece of pipe is advantageously simply arranged on the outside of the container wall above the cross-sectionally round or oval through opening and is connected in a suitable manner in a liquid-tight manner to the container wall, with this in the outlet region of the cold water connection pipe from this piece of pipe having the appropriate shape is liquid-tight connected to the shaft-free line connection end of the cold water connection. With an oval cross section, the through opening is oriented with its main axis parallel to the longitudinal axis of the storage container. Due to the larger length of the cold water connection pipe which can be accommodated in this way within the water-carrying interior, it is advantageously possible, on the one hand, to make the corrugated section of the cold water connection pipe longer and, on the other hand, to keep the corrugations flat, ie to measure the depth of the corrugations so that they are smaller than a wavelength. This makes it possible to avoid dense corrugations, as is usually the case for elastic pipe sections of this type, which takes into account the fact that, as experience has shown, lime is deposited in the lower area of a hot water tank and also in the pipe for the cold water supply. tight folds of the elastic pipe piece in particular and would at least reduce the flexibility of this section. In contrast, in the case of the flat corrugations which are advantageously and preferably provided here, there is one No danger, that is, with relatively flat waves, the entire cold water connection remains mobile and usable. So far, reference has been made exclusively to a cold water connection, but there is in principle nothing to prevent this new training principle from also being provided for hot water or other pipe connections, provided that they are exposed to corresponding strain loads due to structural conditions.

Der erfindungsgemäße Brauchwasserspeicher wird nachfolgend anhand der zeichnerischen Darstellung eines Ausführungs­beispiels näher erläutert.The domestic hot water tank according to the invention is explained in more detail below with reference to the drawing of an exemplary embodiment.

Es zeigt schematisch

  • Fig. 1 teilweise in Schnitt und Ansicht den Brauchwasserspeicher mit Kaltwasser­anschluß und
  • Fig. 2 vergrößert einen Schnitt durch den gewell­ten Abschnitt der Wand des Wellrohres.
It shows schematically
  • Fig. 1 partially in section and view of the hot water tank with cold water connection and
  • Fig. 2 enlarges a section through the corrugated portion of the wall of the corrugated tube.

Der Brauchwasserspeicher besteht aus einem in einem Heizme­dium führenden Gehäuse 1 angeordneten Speicherbehälter 2 mit Kaltwasserzufuhr- 3 und Warmwasserableitungsanschluß, wobei der am unteren Boden 4 des mit seinem Oberteil oder mindestens mit seinem Warmwasserableitungsrohr im Gehäuse fixierten Speicherbehälters 2 angeschlossene Kaltwasseran­schluß 3 über mindestens einen Teil seiner Länge in Form eines Wellrohres 5 ausgebildet und der Kaltwasseranschluß 3 bis zu seiner Austrittsstelle aus dem Innenraum 1ʹ des Ge­häuses 1 eine Länge aufweist, die größer ist als die klein­ste Distanz zwischen der Wand des Speicherbehälters 2 und das diesen umgebenden Gehäuses 1. Der als Wellrohr 5 ausge­bildete Abschnitt 5ʹ des Kaltwasseranschlusses 3 bildet da­bei den größeren Teil von dessen Länge innerhalb des was­ serführenden Gehäuseinnenraumes 1ʹ, wobei der Kaltwasseran­schluß 3 die Gehäusewand 1ʺ im Bereich einer in bezug auf seinen eigenen Durchmesser größeren Öffnung 6 durchgreift. Der aus der Öffnung 6 herausragende Teil des Kaltwasseran­schlusses 3 erstreckt sich innerhalb einer haubenartigen Abdeckung 7 der Öffnung, d.h., der Innenraum dieser Abdeckung 7 gehört ebenfalls mit zum Innenraum 1ʹ des Ge­häuses 1. Der Durchgriffsöffnungsrand 8 der Abdeckung 7 ist mit dem Leitungsanschlußendbereich 9 des Kaltwasseran­schlusses 3 flüssigkeitsdicht verbunden.The domestic hot water tank consists of a storage tank 2 with cold water supply 3 and hot water discharge connection arranged in a heating medium housing 1, the cold water connection 3 connected to the lower bottom 4 of the storage tank 2 fixed in its housing with its upper part or at least with its hot water discharge pipe over at least part of its length formed in the form of a corrugated tube 5 and the cold water connection 3 to its exit point from the interior 1 dem of the housing 1 has a length which is greater than the smallest distance between the wall of the storage container 2 and the surrounding housing 1. The formed as a corrugated tube 5 Section 5ʹ of the cold water connection 3 forms the greater part of its length within what ser leading housing interior 1ʹ, the cold water connection 3 passes through the housing wall 1ʺ in the region of a larger opening 6 with respect to its own diameter. The part of the cold water connection 3 protruding from the opening 6 extends within a hood-like cover 7 of the opening, ie the interior of this cover 7 also belongs to the interior 1ʹ of the housing 1. The passage opening edge 8 of the cover 7 is connected to the line connection end region 9 of the cold water connection 3 connected liquid-tight.

Wie ferner aus Fig. 1 ersichtlich, ist der Boden 4 des Speicherbehälters 2 im Bereich der Einmündung des Kalt­wasseranschlusses 3 in den Boden 4 des Speicherbehälters mit einer Einbuchtung 10 versehen, die eine zur Längsachse 11 des Kaltwasseranschlusses 3 senkrechte oder angenähert senkrechte Einmündungswand 12 aufweise, was die Einbindung des wellenfreien Endes des Kaltwasseranschlusses in den Bo­den 4 erleichtert. Das speicherbodenseitige und wellenfreie Ende 13 des Kaltwasseranschlusses 3 ist dabei mit einem sich in Längsrichtung des Anschlusses erstreckenden Stütz­steg 14 gegen die obere Begrenzungswand 15 der Einbuchtung 10 abgestützt. Dadurch wird jede Belastung der Ring­schweißnaht für die Einbindung des wellenfreien Endes 13 vermieden. Die haubenartige und relativ lange Abdeckung 7 der im Querschnitt runden oder ovalen Durchgriffsöffnung 6 ist in Form eines Rohrstückes 7ʹ ausgebildet und in ge­eigneter Weise flüssigkeitsdicht mit dem Umfangsrand der Durchgriffsöffnung 6 verbunden bzw. mit einem besonderen Blechring, an dem ein Anschlußflansch ausgebildet ist, der aber hier keine Rolle spielt. Dieser Blechring, wenn vor­handen und wie dargestellt, muß dann natürlich eine ent­sprechende, zur Durchgriffsöffnung 6 fluchtende Öffnung aufweisen. Die diesbezüglich mit dargestellte besondere Ge­staltung des wasserführenden Gehäuses 1 ist ebenfalls unwe­sentlich, d.h., das wasserführende Gehäuse 1 kann unter dem Boden 4 des Speicherbehälters auch ein abgeschlossenes Ge­häuse bilden, das dann nicht, wie dargestellt, in offener Verbindung zu einem unter dem Gehäuse 1 befindlichen Ge­häuse eines Feuerungsteiles steht. Das Rohrstück 7ʹ hat eine Länge, die vorteilhaft mindestens einem Drittel der Länge des sich im wasserführenden Innenraum 1ʹ von Gehäuse 1 und Rohrstück 7ʹ erstreckenden Kaltwasseranschusses 3 entspricht.1, the bottom 4 of the storage tank 2 is provided in the region of the mouth of the cold water connection 3 in the bottom 4 of the storage tank with an indentation 10 which has an orifice wall 12 perpendicular or approximately perpendicular to the longitudinal axis 11 of the cold water connection 3, which facilitates the integration of the shaft-free end of the cold water connection into the floor 4. The bottom 13 and shaft-free end 13 of the cold water connection 3 is supported with a support web 14 extending in the longitudinal direction of the connection against the upper boundary wall 15 of the indentation 10. This avoids any stress on the ring weld seam for the integration of the shaft-free end 13. The hood-like and relatively long cover 7 of the cross-sectionally round or oval through opening 6 is designed in the form of a tube piece 7 'and suitably connected in a liquid-tight manner to the peripheral edge of the through opening 6 or with a special sheet metal ring on which a connecting flange is formed, but which doesn't matter here. This sheet metal ring, if present and as shown, must of course then have a corresponding opening aligned with the through opening 6. The particular design of the water-carrying housing 1 shown in this regard is also immaterial, ie the water-carrying housing 1 can be placed under the Bottom 4 of the storage container also form a closed housing, which then is not, as shown, in open connection to a housing of a firing part located under the housing 1. The pipe section 7ʹ has a length which advantageously corresponds to at least one third of the length of the cold water connection 3 extending in the water-carrying interior 1ʹ of the housing 1 and pipe section 7ʹ.

Aufgrund der unterbringbaren relativ großen Länge des Kalt­wasseranschlusses 3 kann auch der Abschnitt 5ʹ des Wellroh­res entsprechend lang gehalten werden, wodurch man nicht gezwungen ist, diesen mehr oder weniger elastischen Teil des Kaltwasseranschlusses mit sehr engen und dicht gefalte­ten Wellungen zu versehen. Vorteilhaft und bevorzugt sind deshalb die Wellen 17 des Wellrohres 5, wie in Fig. 2 dar­gestellt, mit einer Tiefe T angelegt, die kleiner ist als die Wellenlänge L.Because of the relatively large length of the cold water connection 3 that can be accommodated, the section 5 Well of the corrugated pipe can also be kept correspondingly long, which means that one is not forced to provide this more or less elastic part of the cold water connection with very tight and tightly folded corrugations. Therefore, the shafts 17 of the corrugated tube 5, as shown in FIG. 2, are advantageously and preferably created with a depth T that is smaller than the wavelength L.

Wie gestrichelt in Fig. 1 angedeutet, kann die Unter­bringung eines relativ langen, mit entsprechend langem elastischen Wellrohrabschnittes auch dadurch erreicht wer­den, daß die Einmündungsstelle 16 des behälterseitigen En­des 13 des Kaltwasseranschlusses 3 gegenüberliegent bzw. relativ weit entfernt von der Durchgriffsstelle an der Be­hälterwand angeordnet ist, d.h., in diesem Falle erstreckt sich der größere Teil des Kaltwasseranschlusses 3 unterhalb des Bodens 4 des Speicherbehälters. In Rücksicht auf die in dieser Weise unterbringbare große Länge kann dann das Leitungsanschlußende 9 wieder direkt mit dem Rand der dann entsprechend kleiner gehaltenen Durchgriffsöffnung 6 flüs­sigkeitsdicht verbunden werden. Die Anordnung einer hauben­artigen Abdeckung 7, wie vorbeschrieben, kann dann entfal­len. Stützstege 14 können im übrigen sowohl bei dieser Aus­führungsform als auch bei der vorbeschriebenen Ausführungs­form auch am leitungsanschlußseitigen Ende 9 des Kaltwas­ seranschlusses 3 vorgesehen werden, d.h., entweder inner­halb der Abdeckung 7 oder im zweiten Fall an der Behälter­wand.As indicated by dashed lines in Fig. 1, the accommodation of a relatively long, with a correspondingly long elastic corrugated tube section can also be achieved in that the junction 16 of the container-side end 13 of the cold water connection 3 is arranged opposite or relatively far from the penetration point on the container wall , ie, in this case, the larger part of the cold water connection 3 extends below the bottom 4 of the storage tank. In view of the large length that can be accommodated in this way, the line connection end 9 can then be connected again in a liquid-tight manner to the edge of the passage opening 6, which is then kept correspondingly smaller. The arrangement of a hood-like cover 7, as described above, can then be omitted. Support webs 14 can, moreover, both in this embodiment and in the embodiment described above also at the line connection end 9 of the cold water water connection 3 are provided, ie, either within the cover 7 or in the second case on the container wall.

Claims (8)

1. Brauchwasserspeicher, bestehend aus einem in einem Heizmedium führenden Gehäuse angeordneten Speicher­behälter mit Kaltwasserzufuhr- und Warmwasserab­leitungsanschluß, wobei der am unteren Boden des mit seinem Oberteil oder mindestens mit seinem Warmwasser­ableitungsrohr im Gehäuse fixierten Speicherbehälters angeschlossene Kaltwasseranschluß über mindestens einen Teil seiner Länge in Form eines biegsamen Well­rohres ausgebildet und der Kaltwasseranschluß bis zu seiner Austrittsstelle aus dem Innenraum des Gehäuses eine Länge aufweist, die größer ist als die kleinste Distanz zwischen der Wand des Speicherbehälters und des diesen umgebenden Gehäuses,
dadurch gekennzeichnet,
daß der als Wellrohr (5) ausgebildete Abschnitt (5ʹ) des Kaltwasseranschlusses (3) den größeren Teil von dessen Länge innerhalb des wasserführenden Gehäusein­nenraumes (1ʹ) bildet,
daß der Kaltwasseranschluß (3) die Gehäusewand (1ʺ) im Bereich einer in bezug auf seinen eigenen Durchmesser größeren Öffnung (6) durchgreift und
daß der aus der Öffnung (6) herausragende Teil des Kaltwasseranschlusses (3) sich innerhalb einer hauben­artigen Abdeckung (7) der Öffnung (6) erstreckt und der Durchgriffsöffnungsrand (8) der Abdeckung (7) mit dem Leitungsanschlußendbereich (9) des Kaltwasseran­schlusses (3) flüssigkeitsdicht verbunden ist.1. Domestic hot water storage tank, consisting of a storage tank with cold water supply and hot water discharge connection arranged in a heating medium housing, the cold water connection connected to the bottom of the storage tank with its upper part or at least with its hot water discharge pipe fixed in the housing over at least part of its length in the form of a flexible Corrugated tube formed and the cold water connection has a length up to its point of exit from the interior of the housing, which is greater than the smallest distance between the wall of the storage container and the surrounding housing,
characterized,
that the section (5ʹ) of the cold water connection (3) designed as a corrugated pipe (5) forms the greater part of its length within the water-carrying housing interior (1ʹ),
that the cold water connection (3) passes through the housing wall (1ʺ) in the region of an opening (6) larger in relation to its own diameter and
that the part of the cold water connection (3) protruding from the opening (6) extends within a hood-like cover (7) of the opening (6) and the passage opening edge (8) of the cover (7) with the line connection end region (9) of the cold water connection (3 ) is connected in a liquid-tight manner. 2. Speicher nach Anspruch 1,
dadurch gekennzeichnet,
daß der Boden (4) des Speicherbehälters (2) im Bereich der Einmündung des Kaltwasseranschlusses (3) mit einer Einbuchtung (10) versehen ist, die eine zur Längsachse (11) des Kaltwasseranschlusses (3) senkrechte oder an­genähert senkrechte Einmündungswand (12) aufweist.2. Memory according to claim 1,
characterized,
that the bottom (4) of the storage container (2) in the area the mouth of the cold water connection (3) is provided with an indentation (10) which has an orifice wall (12) that is perpendicular or approximately perpendicular to the longitudinal axis (11) of the cold water connection (3). 3. Speicher nach Anspruch 2,
dadurch gekennzeichnet,
daß das speicherbodenseitige und wellenfreie Ende (13) des Kaltwasseranschlusses (3) mit einem sich in Längs­richtung des Anschlusses erstreckenden Stützsteg (14) gegen die obere Begrenzungswand (15) der Einbuchtung (10) abgestützt ist.3. Memory according to claim 2,
characterized,
that the shaft bottom and shaft-free end (13) of the cold water connection (3) is supported with a support web (14) extending in the longitudinal direction of the connection against the upper boundary wall (15) of the indentation (10). 4. Speicher nach einem der Ansprüche 1 bis 3,
dadurch gekennzeichnet,
daß die haubenartige Abdeckung (7) der Durch­griffsöffnung (6) in Form eines Rohrstückes (7ʹ) aus­gebildet und dieses eine Länge hat, die mindestens ei­nem Drittel der Länge des sich im wasserführenden In­nenraum (1ʹ) von Gehäuse (1) und Rohrstück (7ʹ) er­streckenden Kaltwasseranschlusses (3) entspricht.4. Memory according to one of claims 1 to 3,
characterized,
that the hood-like cover (7) of the passage opening (6) is in the form of a pipe section (7ʹ) and this has a length which is at least one third of the length of the housing (1) and pipe section (7ʹ) in the water-carrying interior (1ʹ) extending cold water connection (3) corresponds. 5. Speicher nach einem der Ansprüche 1 bis 4,
dadurch gekennzeichnet,
daß die Wellen (17) des Wellrohres (5) eine Tiefe (T) aufweisen, die kleiner ist als eine Wellenlänge (L).5. Memory according to one of claims 1 to 4,
characterized,
that the waves (17) of the corrugated tube (5) have a depth (T) which is less than a wavelength (L). 6. Brauchwasserspeicher, bestehend aus einem in einem Heizmedium führenden Gehäuse angeordneten Speicherbe­hälter mit Kaltwasserzufuhr- und Warm­wasserableitungsanschluß, wobei der am unteren Boden des mit seinem Oberteil oder mindestens mit seinem Warmwasserableitungsrohr im Gehäuse fixierten Speicherbehälters angeschlossene Kaltwasseranschluß über mindestens einen Teil seiner Länge in Form eines Wellrohres ausgebildet und der Kaltwasseranschluß bis zu seiner Austrittsstelle aus dem Innenraum des Gehäu­ses eine Länge aufweist, die größer ist als die klein­ste Distanz zwischen der Wand des Speicherbehälters und des diesen umgebenden Gehäuses,
dadurch gekennzeichnet,
daß der Kaltwasseranschluß (3) unterhalb des Bodens (4) des Speicherbehälters (2) erstreckt und in bezug auf die Durchgriffsstelle an der Wand des Gehäuses (1) in einer Distanz zu dieser in den Boden (4) einmündend angeordnet ist, die mindestens einem Drittel des Speicherbehälterdurchmessers entspricht und daß der als Wellrohr (5) ausgebildete Abschnitt (5ʹ) des Kalt­wasseranschlusses (3) den größeren Teil von dessen Länge innerhalb des wasserführenden Gehäuseinnenraumes (1ʹ) bildet.6. Domestic hot water storage tank, consisting of a storage tank with cold water supply and hot water discharge connection arranged in a heating medium housing, the cold water connection connected to the bottom of the storage tank with its upper part or at least with its hot water discharge pipe in the housing connected over at least part of its length in the form of a corrugated pipe trained and the cold water connection up has a length at its point of exit from the interior of the housing which is greater than the smallest distance between the wall of the storage container and the housing surrounding it,
characterized,
that the cold water connection (3) below the bottom (4) of the storage container (2) extends and with respect to the penetration point on the wall of the housing (1) at a distance from this in the bottom (4) is arranged, which at least one Corresponds to one third of the storage tank diameter and that the section (5ʹ) of the cold water connection (3) designed as a corrugated tube (5) forms the greater part of its length within the water-carrying housing interior (1ʹ). 7. Brauchwasserspeicher nach Anspruch 6,
dadurch gekennzeichnet,
daß der Boden (4) des Speicherbehälters (2) mit einer Einbuchtung (10) versehen und das behälterseitige, wellenfreie Ende (13) senkrecht in die obere Begren­zungswand (15) der Einbuchtung (10) eingebunden ist.7. hot water tank according to claim 6,
characterized,
that the bottom (4) of the storage container (2) is provided with an indentation (10) and the container-side, shaft-free end (13) is vertically integrated into the upper boundary wall (15) of the indentation (10). 8. Brauchwasserspeicher nach einem der Ansprüche 1 bis 7,
dadurch gekennzeichnet,
daß auch im Leitungsanschlußendbereich (9) innerhalb der Abdeckung (7) oder zur Wandinnenfläche des Gehäu­ses (1) Stützstege (14) angeordnet sind.8. hot water tank according to one of claims 1 to 7,
characterized,
that support webs (14) are also arranged in the line connection end area (9) within the cover (7) or to the inner wall surface of the housing (1).
EP88103844A 1987-03-16 1988-03-11 Water storage heater Expired - Lifetime EP0282916B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT88103844T ATE68585T1 (en) 1987-03-16 1988-03-11 DOMESTIC WATER TANK.

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
DE8703893U DE8703893U1 (en) 1987-03-16 1987-03-16 Gas boiler
DE8703893U 1987-03-16
DE8801491U 1988-02-06
DE8801491U DE8801491U1 (en) 1988-02-06 1988-02-06 Domestic water storage

Publications (3)

Publication Number Publication Date
EP0282916A2 true EP0282916A2 (en) 1988-09-21
EP0282916A3 EP0282916A3 (en) 1990-05-23
EP0282916B1 EP0282916B1 (en) 1991-10-16

Family

ID=25951614

Family Applications (1)

Application Number Title Priority Date Filing Date
EP88103844A Expired - Lifetime EP0282916B1 (en) 1987-03-16 1988-03-11 Water storage heater

Country Status (3)

Country Link
EP (1) EP0282916B1 (en)
AT (1) ATE68585T1 (en)
DE (1) DE3865469D1 (en)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1944049U (en) * 1963-06-28 1966-08-11 Wilhelm Ganhoer STANDING STEEL BOILER WITH HOT WATER BOILER FOR OIL FIRING, GAS AND SOLID FUEL
DE7031491U (en) * 1970-08-22 1970-11-19 Junkers & Co DEVICE FOR CONNECTING A GAS-HEATED FLOW WATER HEATER.
DE8703893U1 (en) * 1987-03-16 1987-04-30 Viessmann Werke GmbH & Co, 3559 Allendorf Gas boiler

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1944049U (en) * 1963-06-28 1966-08-11 Wilhelm Ganhoer STANDING STEEL BOILER WITH HOT WATER BOILER FOR OIL FIRING, GAS AND SOLID FUEL
DE7031491U (en) * 1970-08-22 1970-11-19 Junkers & Co DEVICE FOR CONNECTING A GAS-HEATED FLOW WATER HEATER.
DE8703893U1 (en) * 1987-03-16 1987-04-30 Viessmann Werke GmbH & Co, 3559 Allendorf Gas boiler

Also Published As

Publication number Publication date
EP0282916A3 (en) 1990-05-23
EP0282916B1 (en) 1991-10-16
DE3865469D1 (en) 1991-11-21
ATE68585T1 (en) 1991-11-15

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