EP0294551B1 - Thermal apparatus - Google Patents

Thermal apparatus Download PDF

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Publication number
EP0294551B1
EP0294551B1 EP88105420A EP88105420A EP0294551B1 EP 0294551 B1 EP0294551 B1 EP 0294551B1 EP 88105420 A EP88105420 A EP 88105420A EP 88105420 A EP88105420 A EP 88105420A EP 0294551 B1 EP0294551 B1 EP 0294551B1
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EP
European Patent Office
Prior art keywords
flanged
opening
housing
projecting part
connecting member
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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.)
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EP88105420A
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German (de)
French (fr)
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EP0294551A1 (en
Inventor
Hans Dr. Vriessmann
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Viessmann Werke GmbH and Co KG
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Viessmann Werke GmbH and Co KG
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Priority to AT88105420T priority Critical patent/ATE57759T1/en
Publication of EP0294551A1 publication Critical patent/EP0294551A1/en
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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
    • F24H1/18—Water-storage heaters
    • F24H1/181—Construction of the tank
    • F24H1/182—Insulation
    • 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 thermal device, in particular hot water tank and / or boiler according to the preamble of the main claim.
  • thermal devices are known, for example, according to CA-A 1 195 910. With these devices, too, modern manufacturing methods have started to fill the space between the inner housing and the outer, thin-walled enclosure with heat-insulating material. Since the inner housing, especially if it is a domestic hot water tank or boiler housing, always have appropriate connection pieces that must also be led out of the outer housing, the required push-through openings in the wall of the outer housing were dimensioned as narrowly as possible to just barely to be able to thread the storage container with its connecting pieces somewhat comfortably and also to achieve passage passages of the smallest possible size so that as little as possible of the filled insulation material could escape from the existing gaps. In order to prevent this from happening at all, the possible exit gap areas were covered or sealed from the inside with soft foam.
  • the invention has for its object to improve a thermal device of the type mentioned in such a way that with possible more generous dimensioning of the passage openings for the connecting pieces and without the aid of a preparatory soft foam, an effective seal for the foam can be achieved with sealing elements that simultaneously for a precise spacing between the inner housing and outer casing housing in the area of the connecting piece should ensure.
  • both this inside to be arranged and the outside to be arranged against flange piece consists of a plastic material adjusted in terms of its elasticity so that this just when tightening the two sealing elements to the shape of the can still adjust the relevant wall of the outer housing.
  • the opening sealing flange piece is to be fixed in position on the connecting piece, it is to be understood that when the inner housing is fitted into the outer housing, the required distance is inevitably obtained.
  • the aforementioned elasticity of the flange piece or its penetration part, which is set in a certain way, is also essential insofar as the penetration part of the opening sealing flange piece must fit tightly on the connecting piece of the inner housing, in order to prevent material leakage during filling in this area as well.
  • the device is designed such that an attachment stop is provided on the penetration part, namely on the edge of its outer nozzle push-through opening.
  • This attachment stop is designed, for example, in the form of at least one thin-walled hook or a bracket or a basket-like hood which extends beyond the outer nozzle through-opening of the opening passage part, which will be explained in more detail below.
  • this ensures that when the spacer and opening sealing flange piece is plugged onto the connecting piece before the inner casing is installed in the outer casing, the flange piece can only be pushed onto the connecting piece up to a very specific point, which position then exactly the desired distance represented between the inner housing and the outer thin-walled housing.
  • the penetration part of the spacing and opening sealing flange piece is provided with an external thread, on which the further sealing flange piece is then screwed from the outside.
  • the flange parts of the two flange pieces are also expediently provided on the outer circumference with a circumferential sealing lip, the inner sealing lip ensuring the perfect foaming seal and the outer sealing lip ensuring that the peripheral edge region of the outer flange piece also sits in a visually perfect manner.
  • FIG. 1 a domestic hot water tank, as is shown, for example, in FIG.
  • This consists of an inner housing 2 enclosed at a distance with an outer, thin-walled housing 11 with at least one connecting piece 1 penetrating through a through opening 10 of the wall of the outer housing 11, the space between the inner and outer housings 2, 11 being filled with insulating material 13.
  • the area of penetration of the connecting piece 1 that is of interest here through the wall of the outer housing 11 made of thin sheet metal is shown enlarged in FIG. 2, which, however, corresponds approximately on a scale of 1: 1 to the structural conditions normally given.
  • FIG. 2 which, however, corresponds approximately on a scale of 1: 1 to the structural conditions normally given.
  • the limitedly elastically designed spacer and opening sealing flange piece 3 is arranged on the relevant connecting piece 1 of the inner housing 2 in a tightly fitting and fixed position, specifically with its opening penetration part 4, on the outside of which a correspondingly adapted shape is also limited elastic additional sealing flange piece 6 is seated.
  • the flange parts 7, 8 of the two flange pieces 3, 6 cover the circumferential edge region 9 of the passage opening 10 in the wall of the outer housing, so that the passage opening 10 in relation to the outer diameter of the passage part 4 need not be tight, which means the introduction of the Inner housing relieved in the outer housing, since the at least one connecting piece 1 must be threaded into the through opening 10.
  • the penetration part 4 of the flange piece 3 is advantageously provided with an external thread 14 (see in particular Fig. 3) and the other sealing flange piece 6 with an internal thread so that it can be screwed onto the penetration part 4 for the purpose of bracing the flange pieces 3, 6.
  • this attachment stop 5 is in the form of two thin-walled, strip-shaped hooks 16 in side view or in FIG. 2 in the form of a bracket 18 that overlaps the outer nozzle through opening 17 of the penetration part 4. According to FIG. 4, however, this stop 5 can be preferred and how 4, can also be designed in the form of a basket-like hood 19.
  • the material thickness for both a hook formation, a hanger formation or a basket-like hood formation is kept so thin that these stops after completion, i.e. after the space has been filled in, it can simply be cut off, since these stops are then no longer required and the connecting thread on the connecting piece must be exposed in order to be able to connect any connecting lines with suitable fittings.
  • the various embodiments of the stop designs naturally also perform a protective function with regard to the thread on the connecting piece 1, but also to the opening edge of the passage opening in the wall of the outer housing 11, which yes, is made of sheet metal is sensitive. Since the embodiment of the stop 5 according to FIG. 4 is best suited for such a protective function, this embodiment is preferred.
  • the webs of the hood 19 are the same as the bracket 18 in FIG. 2.

Abstract

1. A heating apparatus, more particularly a storage tank for consumption water and/or a boiler, consisting of an inner housing (2) surrounded by an outer, thin-walled housing (11) spaced therefrom, said inner housing (2) having at least one connecting member (1) passing through an access opening (10) in the wall of the outer housing (11) and sealed off by means of a gasket, the space between the inner and outer housings (2, 11) being filled with heat-insulating plastic foam (13), characterised in that a first flanged member (3) of limited flexibility, acting as a spacer and sealing the opening, is arranged in tight-fitting manner on the associated connecting member (2) of the inner housing (2), said flanged member having a projecting part (4), a second flanged spacing member (6) of corresponding shape and again of limited flexibility being stretched thereover from the outside, the flange parts (7, 8) of the flanged members (3, 6) being arranged to cover the circumferential edge region (9) of the access opening (10) which is located between said flange parts (7, 8), whilst the projecting part (4) is further provided with a fitting attachment (5) at the edge of its outer opening (17) for the insertion of the connecting member.

Description

Die Erfindung betrifft ein wärmetechnisches Gerät, insbesondere Brauchwasserspeicher und/oder Heizkessel gemäß Oberbegriff des Hauptanspruches.The invention relates to a thermal device, in particular hot water tank and / or boiler according to the preamble of the main claim.

Derartige wärmetechnische Geräte sind bspw. nach der CA-A 1 195 910 bekannt. Auch bei diesen Geräten ist man im Zuge moderner Fertigungsmethoden dazu übergegangen, den Zwischenraum zwischen Innengehäuse und äußerem, dünnwandigem Umschließungsgehäuse mit wärmeisolierendem Material zu füllen. Da die Innengehäuse, insbesondere, wenn es sich um Brauchwasserspeicher- oder Heizkesselgehäuse handelt, immer entsprechende Anschlußstutzen aufweisen, die auch aus dem äußeren Gehäuse herausgeführt werden müssen, wurden die erforderlichen Durchstecköffnungen in der Wand des äußeren Gehäuses so knapp wie möglich bemessen, um gerade noch den Speicherbehälter mit seinen Anschlußstutzen einigermaßen bequem einfädeln zu können und um ferner möglichst klein bemessene Durchtrittspassagen zu erreichen, damit möglichst wenig von dem eingefüllten Isolationsmaterial aus den vorhandenen Spalten austreten konnte. Um dies aber grundsätzlich überhaupt zu verhindern, wurden die möglichen Austrittsspaltbereiche von innen mit Weichschaum abgedeckt bzw. abgedichtet. Beim Gerät nach der CA-A 1 195 910 erfolgt dies in ähnlicher Weise mit um die Abgangsstutzen und die Öffnungsränder der Durchgriffsöffnungen anformbarer Dichtungsmasse. Da damit eine Distanzfixierung zwischen Außen-und Innengehäuse in den Durchgriffsbereichen nicht möglich ist, ist beim Gerät nach der CA-A 1 195 910 eine aufblasbare Manschette vorgesehen, die kurz über dem Anordnungsbereich des Brenners angeordnet und nach dem Ausschäumen mit Isolationsmaterial wieder entfernt wird.Such thermal devices are known, for example, according to CA-A 1 195 910. With these devices, too, modern manufacturing methods have started to fill the space between the inner housing and the outer, thin-walled enclosure with heat-insulating material. Since the inner housing, especially if it is a domestic hot water tank or boiler housing, always have appropriate connection pieces that must also be led out of the outer housing, the required push-through openings in the wall of the outer housing were dimensioned as narrowly as possible to just barely to be able to thread the storage container with its connecting pieces somewhat comfortably and also to achieve passage passages of the smallest possible size so that as little as possible of the filled insulation material could escape from the existing gaps. In order to prevent this from happening at all, the possible exit gap areas were covered or sealed from the inside with soft foam. In the device according to CA-A 1 195 910, this is carried out in a similar manner with sealing compound which can be molded around the outlet connections and the opening edges of the through openings. Since it is not possible to fix the distance between the outer and inner housing in the penetration areas, an inflatable sleeve is provided in the device according to CA-A 1 195 910, which is arranged just above the burner's arrangement area and removed again after insulation has been filled with foam.

Der Erfindung liegt die Aufgabe zugrunde, ein wärmetechnisches Gerät der eingangs genannten Art dahingehend zu verbessern, daß bei möglicher großzügigerer Bemessung der Durchgriffsöffnungen für die Anschlußstutzen und ohne Zuhilfenahme eine vorbereitenden Weichausschäumung eine wirksame Abdichtung für die Ausschäumung erreichbar ist und zwar mit Abdichtelementen, die gleichzeitig für eine genaue Abstandshalterung zwischen Innengehäuse und äußerem Ummantelungsgehäuse im Bereich der Anschlußstutzen sorgen sollen.The invention has for its object to improve a thermal device of the type mentioned in such a way that with possible more generous dimensioning of the passage openings for the connecting pieces and without the aid of a preparatory soft foam, an effective seal for the foam can be achieved with sealing elements that simultaneously for a precise spacing between the inner housing and outer casing housing in the area of the connecting piece should ensure.

Diese Aufgabe ist mit einem wärmetechnischen Gerät der eingangs genannten Art nach der Erfindung durch die im Kennzeichen des Hauptanspruches angeführten Merkmale gelöst. Vorteilhafte Weiterbildungen ergeben sich nach den Unteransprüchen.This object is achieved with a thermal device of the type mentioned according to the invention by the features stated in the characterizing part of the main claim. Advantageous further developments result from the subclaims.

Unter "begrenzt elastischem Abstands- und Öffnungsabdichtflanschstück" ist dabei zu verstehen, daß sowohl diese innen anzuordnende als auch das von außen dagegen anzuordnende Flanschstück aus einem bezüglich seiner Elastizität derart eingestellten Kunststoffmaterial besteht, daß sich dieses gerade beim Zusammenspannen der beiden Abdichtelemente an den Formverlauf der betreffenden Wand des Außengehäuses noch anpassen kann. Ferner ist unter der Maßgabe, daß das Öffnungsabdichtflanschstück stellungsfixiert am Anschlußstutzen sitzen soll, so zu verstehen, daß sich bei Einpassen des Innengehäuses in das äußere Gehäuse zwangsläufig exakt der gewünschte Abstand ergibt. Die vorerwähnte, in bestimmter Weise eingestellte Elastizität des Flanschstückes bzw. seines Durchgriffsteiles ist auch insoweit wesentlich, als das Durchgriffsteil des Öffnungsabdichtflanschstückes dicht passend auf dem Anschlußstutzen des Innengehäuses sitzen muß, um auch in diesem Bereich mit Sicherheit einen Materialaustritt beim Füllen zu verhindern. Bezüglich der Stellungsfixierung des Öffnungsabdichtflanschstückes, das insoweit auch als Abstandsflanschstück fungiert, ist das Gerät derart ausgebildet, daß am Durchgriffsteil und zwar am Rand seiner äußeren Stutzendurchstecköffnung ein Aufsatzanschlag vorgesehen ist. Dieser Aufsatzanschlag wird bspw. in Form mindestens eines dünnwandigen Hakens oder eines die äußere Stutzendurchstecköffnung des Öffnungsdurchgriffsteiles übergreifenden Bügels oder einer korbartigen Haube ausgebildet, was im einzelnen noch näher erläutert wird. Auf jeden Fall ist damit dafür gesorgt, daß beim Aufstecken des Abstands-und Offnungsabdichtflanschstückes auf den Anschlußstutzen vor Einbau des Innengehäuses in das äußere Gehäuse das Flanschstück nur bis zu einer ganz bestimmten Stelle auf den Anschlußstutzen aufgesteckt werden kann, welche Stellung dann exakt die gewünschte Distanz zwischen dem Innengehäuse und dem äußeren dünnwandigen Gehäuse repräsentiert.Under "limited elastic distance and opening sealing flange piece" is to be understood that both this inside to be arranged and the outside to be arranged against flange piece consists of a plastic material adjusted in terms of its elasticity so that this just when tightening the two sealing elements to the shape of the can still adjust the relevant wall of the outer housing. Furthermore, under the proviso that the opening sealing flange piece is to be fixed in position on the connecting piece, it is to be understood that when the inner housing is fitted into the outer housing, the required distance is inevitably obtained. The aforementioned elasticity of the flange piece or its penetration part, which is set in a certain way, is also essential insofar as the penetration part of the opening sealing flange piece must fit tightly on the connecting piece of the inner housing, in order to prevent material leakage during filling in this area as well. With regard to the positional fixation of the opening sealing flange piece, which also functions as a spacing flange piece, the device is designed such that an attachment stop is provided on the penetration part, namely on the edge of its outer nozzle push-through opening. This attachment stop is designed, for example, in the form of at least one thin-walled hook or a bracket or a basket-like hood which extends beyond the outer nozzle through-opening of the opening passage part, which will be explained in more detail below. In any case, this ensures that when the spacer and opening sealing flange piece is plugged onto the connecting piece before the inner casing is installed in the outer casing, the flange piece can only be pushed onto the connecting piece up to a very specific point, which position then exactly the desired distance represented between the inner housing and the outer thin-walled housing.

Bezüglich der verspannten Zuordnung der beiden Flanschstücke zueinander ist das Druchgriffsteil des Abstands- und Öffnungsabdichtflanschstückes mit Außengewinde versehen, auf dem dann das weitere Abdichtflanschstück von außen aufgeschraubt angeordnet ist. Zweckmäßig sind ferner die Flanschteile der beiden Flanschstücke am Außenumfang mit einer Umlaufdichtlippe versehen, wobei die innere Dichtlippe die einwandfreie Verschäumungsabdichtung gewährleistet und die äußere Dichtlippe für eine auch optisch einwandfreie Anlage des Umfangsrandbereiches des äußeren Flanschstückes sorgt.With regard to the tensioned assignment of the two flange pieces to one another, the penetration part of the spacing and opening sealing flange piece is provided with an external thread, on which the further sealing flange piece is then screwed from the outside. The flange parts of the two flange pieces are also expediently provided on the outer circumference with a circumferential sealing lip, the inner sealing lip ensuring the perfect foaming seal and the outer sealing lip ensuring that the peripheral edge region of the outer flange piece also sits in a visually perfect manner.

Das erfindungsgemäße wärmetechnische Gerät wird nachfolgend anhand der zeichnerischen Darstellung von Ausführungsbeispielen näher erläutert.The thermal device according to the invention is explained in more detail below with reference to the drawing of exemplary embodiments.

Es zeigt schematischIt shows schematically

  • Fig. 1 in Seitenansicht und als Beispiel ein wärmetechnisches Gerät in Form eines Brauchwasserspeichers;Figure 1 in side view and as an example a thermal device in the form of a domestic hot water tank.
  • Fig. 2 einen Schnitt längs Linie 11-11 in Fig. 1;Fig. 2 is a section along line 11-11 in Fig. 1;
  • Fig. 3 im Schnitt eine besondere Ausführungsform des Aufsatzanschlages am Abstands- und Öffnungsabdichtflanschstück undFig. 3 in section a special embodiment of the attachment stop on the spacer and opening sealing flange and
  • Fig. 4 in Draufsicht eine weitere Ausführungsform des Aufsatzanschlages.Fig. 4 in plan view a further embodiment of the attachment stop.

Für die nachfolgend nähere Beschreibung des wärmetechnischen Gerätes wird der Einfachheit halber allein auf einen Brauchwasserspeicher Bezug genommen, wie er bspw. in Fig. 1 dargestellt ist. Dieser besteht aus einem mit einem äußeren, dünnwandigen Gehäuse 11 in Distanz umschlossenen Innengehäuse 2 mit mindestens einem eine Durchgriffsöffnung 10 der Wand des Außengehäuses 11 durchgreifenden Anschlußstutzen 1, wobei der Zwischenraum zwischen Innen- und Außengehäuse 2, 11 mit isolierendem Material 13 ausgefüllt ist. Der hier interessierende Durchgriffsbereich des Anschlußstutzens 1 durch die Wand des Außengehäuses 11 aus Feinblech ist vergrößert in Fig. 2 verdeutlicht, die aber im Maßstab 1:1 etwa den normalerweise gegebenen konstruktiven Verhältnissen entspricht. Wie aus Fig. 2 ersichtlich, ist auf dem betreffenden Anschlußstutzen 1 des Innengehäuses 2 dicht passend und stellungsfixiert das begrenzt elastisch ausgebildete Abstands- und Öffungsabdichtflanschstück 3 angeordnet und zwar mit seinem Öffnungsdurchgriffsteil 4, auf dem von außen ein in seiner Form entsprechend angepaßtes, ebenfalls begrenzt elastisches weiteres Abdichtflanschstück 6 aufgespannt sitzt. Die Flanschteile 7, 8 der beiden Flanschstücke 3, 6 decken dabei den Umfangsrandbereich 9 der Durchgriffsöffnung 10 in der Wand des Außengehäuses reichlich ab, so daß die Durchgriffsöffnung 10 in bezug auf den Außendurchmesser des Durchgriffsteiles 4 keineswegs knapp bemessen sein muß, was die Einbringung des Innengehäuses in das äußere Gehäuse erleichtert, da ja der mindestens eine Anschlußstutzen 1 dabei in die Durchgriffsöffnung 10 eingefädelt werden muß. Der Durchgriffsteil 4 des Flanschstückes 3 ist vorteilhaft mit Außengewinde 14 versehen (s. insbesondere Fig. 3) und das andere Abdichtflanschstück 6 mit Innengewinde, so daß dieses zwecks Verspannung der Flanschstücke 3, 6 auf das Durchgriffsteil 4 aufgeschraubt werden kann.For the sake of simplicity, the following description of the thermal device is referred to a domestic hot water tank, as is shown, for example, in FIG. This consists of an inner housing 2 enclosed at a distance with an outer, thin-walled housing 11 with at least one connecting piece 1 penetrating through a through opening 10 of the wall of the outer housing 11, the space between the inner and outer housings 2, 11 being filled with insulating material 13. The area of penetration of the connecting piece 1 that is of interest here through the wall of the outer housing 11 made of thin sheet metal is shown enlarged in FIG. 2, which, however, corresponds approximately on a scale of 1: 1 to the structural conditions normally given. As can be seen from FIG. 2, the limitedly elastically designed spacer and opening sealing flange piece 3 is arranged on the relevant connecting piece 1 of the inner housing 2 in a tightly fitting and fixed position, specifically with its opening penetration part 4, on the outside of which a correspondingly adapted shape is also limited elastic additional sealing flange piece 6 is seated. The flange parts 7, 8 of the two flange pieces 3, 6 cover the circumferential edge region 9 of the passage opening 10 in the wall of the outer housing, so that the passage opening 10 in relation to the outer diameter of the passage part 4 need not be tight, which means the introduction of the Inner housing relieved in the outer housing, since the at least one connecting piece 1 must be threaded into the through opening 10. The penetration part 4 of the flange piece 3 is advantageously provided with an external thread 14 (see in particular Fig. 3) and the other sealing flange piece 6 with an internal thread so that it can be screwed onto the penetration part 4 for the purpose of bracing the flange pieces 3, 6.

Die Stellungsfixierung des auf den Anschlußstutzen 1 aufzusetzenden Flanschstückes 3 wird dadurch erreicht, daß das Durchgriffsteil 4 am Rand seiner äußeren Stutzendurchstecköffnung 17 mit einem Aufsatzanschlag 5 versehen ist, der einen Aufschub des Flanschstückes 3 nur bis zur Anlage des Anschlages 5 am freien Ende des Anschlußstutzens 1 zuläßt. Gemäß Fig. 3 ist dieser Aufsatzanschlag 5 in Form zweier dünnwandiger, in Seitenansicht streifenförmger Haken 16 ausgebildet oder gemäß Fig. 2 in Form eines die äußere Stutzendurchstecköffnung 17 des Durchgriffsteiles 4 übergreifenden Bügels 18. Gemäß Fig. 4 kann aber dieser Anschlag 5 bevorzugt und wie in Fig. 4 dargestellt, auch in Form einer korbartigen Haube 19 ausgebildet sein. Die Materialstärke sowohl für eine Hakenausbildung, eine Bügelausbildung oder eine korbartige Haubenausbildung ist so dünn gehalten, daß diese Anschläge nach Fertigstellung, d.h. nach erfolgter Ausfüllung des Zwischenraumes einfach abgeschnitten werden kann, da diese Anschläge dann ja nicht mehr benötigt werden und das Anschlußgewinde am Anschlußstutzen freigelegt werden muß, um irgendwelche Anschlußleitungen mit geeigneten Fittings anschließen zu können. Abgesehen von der Anschlagfunktion erfüllen dabei die verschiedenen Ausführungsformen der Anschlagausbildungen, wie erläutert, natürlich auch eine Schutzfunktion in bezug auf das Gewinde am Anschlußstutzen 1, aber auch auf den Öffnungsrand der Durchgriffsöffnung in der Wand des Außengehäuses 11, der ja, aus Feinblech bestehend, entsprechend empfindlich ist. Da für eine derartige Schutzfunktion die Ausführungsform des Anschlages 5 gemäß Fig. 4 am besten geeignet ist, wird diese Ausführungsform bevorzugt. Im Schnitt stellen sich die Stege der Haube 19 im übrigen genauso dar, wie der Bügel 18 in Fig. 2.The position fixing of the flange piece 3 to be placed on the connecting piece 1 is achieved in that the penetration part 4 is provided on the edge of its outer connecting piece push-through opening 17 with an attachment stop 5 which only delays the flange piece 3 until the stop 5 bears against the free end of the connecting piece 1 allows. According to FIG. 3, this attachment stop 5 is in the form of two thin-walled, strip-shaped hooks 16 in side view or in FIG. 2 in the form of a bracket 18 that overlaps the outer nozzle through opening 17 of the penetration part 4. According to FIG. 4, however, this stop 5 can be preferred and how 4, can also be designed in the form of a basket-like hood 19. The material thickness for both a hook formation, a hanger formation or a basket-like hood formation is kept so thin that these stops after completion, i.e. after the space has been filled in, it can simply be cut off, since these stops are then no longer required and the connecting thread on the connecting piece must be exposed in order to be able to connect any connecting lines with suitable fittings. Apart from the stop function, the various embodiments of the stop designs, as explained, naturally also perform a protective function with regard to the thread on the connecting piece 1, but also to the opening edge of the passage opening in the wall of the outer housing 11, which yes, is made of sheet metal is sensitive. Since the embodiment of the stop 5 according to FIG. 4 is best suited for such a protective function, this embodiment is preferred. On average, the webs of the hood 19 are the same as the bracket 18 in FIG. 2.

Vorteilhaft ist noch das weitere Abdichtflanschstück 6 gemäß Fig. 4, wie dargestellt, mit Drehzugriffsprofilen 20 versehen, so daß für das Verspannen der beiden Flanschstücke 3, 6 keine besonderen Hilfswerkzeuge erforderlich sind und das Flanschstück von Hand aufgeschraubt werden kann. Da die umlaufenden Dichtlippen 15 an beiden Flanschstücken entsprechend dünnwandig gehalten sind, reicht eine solche "Handverspannung" vollkommen aus, um für eine dichte Anlage der Dichtlippen 15 an die Wand des Außengehäuses 11, wie in Fig. 2 dargestellt, zu sorgen.4, as shown, is provided with rotary access profiles 20, so that no special auxiliary tools are required for bracing the two flange pieces 3, 6 and the flange piece can be screwed on by hand. Since the circumferential sealing lips 15 are kept correspondingly thin-walled on both flange pieces, such a “manual bracing” is sufficient to ensure a tight contact of the sealing lips 15 with the wall of the outer housing 11, as shown in FIG. 2.

Claims (5)

1. A heating apparatus, more particularly a storage tank for consumption water and/or a boiler, consisting of an inner housing (2) surrounded by an outer, thin-walled housing (11) spaced therefrom, said inner housing (2) having at least one connecting member (1) passing through an access opening (10) in the wall of the outer housing (11) and sealed off by means of a gasket, the space between the inner and outer housings (2, 11) being filled with heat-insulating plastic foam (13), characterised in that a first flanged member (3) of limited flexibility, acting as a spacer and sealing the opening, is arranged in tight- fitting manner on the associated connecting member (2) of the inner housing (2), said flanged member having a projecting part (4), a second flanged spacing member (6) of corresponding shape and again of limited flexibility being stretched thereover from the outside, the flange parts (7, 8) of the flanged members (3, 6) being arranged to cover the circumferential edge region (9) of the access opening (10) which is located between said flange parts (7, 8), whilst the projecting part (4) is further provided with a fitting attachment (5) at the edge of its outer opening (17) for the insertion of the connecting member.
2. Apparatus according to claim 1, characterised in that the projecting part (4) of the flanged member (3), acting as a spacer and sealing the opening, has an external thread (14) and the second flanged spacing member (6) is screwed onto said thread (14).
3. Apparatus according to claim 1 or 2, characterised in that the flange parts (7, 8) of the two flanged members (3, 6) are provided on their outer periphery with an encircling sealing lip (15).
4. Apparatus according to one of claims 1 to 3, characterised in that the fitting attachment (5) of the projecting part (4) is constructed in the form of at least one thin-walled hook (16) or a bracket (18) engaging over the outer opening (17) provided in the projecting part (4) for the insertion of the connecting member or is constructed like a basket-shaped cowling (19).
5. Apparatus according to one of claims 1 to 4, characterised in that a rotary gripping surface (20) is formed on the outside of the second flanged member (6).
EP88105420A 1987-05-25 1988-04-06 Thermal apparatus Expired - Lifetime EP0294551B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT88105420T ATE57759T1 (en) 1987-05-25 1988-04-06 THERMAL DEVICE.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE8707498U DE8707498U1 (en) 1987-05-25 1987-05-25
DE8707498U 1987-05-25

Publications (2)

Publication Number Publication Date
EP0294551A1 EP0294551A1 (en) 1988-12-14
EP0294551B1 true EP0294551B1 (en) 1990-10-24

Family

ID=6808482

Family Applications (1)

Application Number Title Priority Date Filing Date
EP88105420A Expired - Lifetime EP0294551B1 (en) 1987-05-25 1988-04-06 Thermal apparatus

Country Status (4)

Country Link
EP (1) EP0294551B1 (en)
AT (1) ATE57759T1 (en)
DE (2) DE8707498U1 (en)
ES (1) ES2018589B3 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT396295B (en) * 1991-03-14 1993-07-26 Vaillant Gmbh HOT WATER TANK OR BOILER

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3021290A1 (en) * 1980-06-06 1981-12-24 Stiebel Eltron Gmbh & Co Kg, 3450 Holzminden Locking device for two housing portions - consists of circular cap locked by rotation around two semicircular flanges on water heater housing portions
CA1195910A (en) * 1982-06-14 1985-10-29 Robert W. Tilton Foam insulated water heaters
DE3307997A1 (en) * 1983-03-07 1984-09-13 Hans Dr.h.c. 3559 Battenberg Vießmann Tap water storage tank
DE8633825U1 (en) * 1986-12-18 1987-04-16 Joh. Vaillant Gmbh U. Co, 5630 Remscheid, De

Also Published As

Publication number Publication date
EP0294551A1 (en) 1988-12-14
DE3860873D1 (en) 1990-11-29
ATE57759T1 (en) 1990-11-15
DE8707498U1 (en) 1988-09-29
ES2018589B3 (en) 1991-04-16

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