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AT398833B - Combustion chamber shaft - Google Patents

Combustion chamber shaft Download PDF

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Publication number
AT398833B
AT398833B AT0098292A AT98292A AT398833B AT 398833 B AT398833 B AT 398833B AT 0098292 A AT0098292 A AT 0098292A AT 98292 A AT98292 A AT 98292A AT 398833 B AT398833 B AT 398833B
Authority
AT
Austria
Prior art keywords
combustion chamber
chamber shaft
walls
shaft
heat exchanger
Prior art date
Application number
AT0098292A
Other languages
German (de)
Other versions
ATA98292A (en
Original Assignee
Vaillant Gmbh
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Vaillant Gmbh filed Critical Vaillant Gmbh
Priority to AT0098292A priority Critical patent/AT398833B/en
Priority to DE59208505T priority patent/DE59208505D1/en
Priority to AT92916041T priority patent/ATE153126T1/en
Priority to EP92916041A priority patent/EP0595945B1/en
Priority to PCT/DE1992/000603 priority patent/WO1993002326A1/en
Priority to DE4224212A priority patent/DE4224212A1/en
Priority to ES92916041T priority patent/ES2102511T3/en
Publication of ATA98292A publication Critical patent/ATA98292A/en
Application granted granted Critical
Publication of AT398833B publication Critical patent/AT398833B/en

Links

Classifications

    • 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
    • F24H1/22—Water heaters other than continuous-flow or water-storage heaters, e.g. water heaters for central heating
    • F24H1/40—Water heaters other than continuous-flow or water-storage heaters, e.g. water heaters for central heating with water tube or tubes
    • 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
    • F24H1/10—Continuous-flow heaters, i.e. heaters in which heat is generated only while the water is flowing, e.g. with direct contact of the water with the heating medium
    • F24H1/12—Continuous-flow heaters, i.e. heaters in which heat is generated only while the water is flowing, e.g. with direct contact of the water with the heating medium in which the water is kept separate from the heating medium
    • F24H1/124—Continuous-flow heaters, i.e. heaters in which heat is generated only while the water is flowing, e.g. with direct contact of the water with the heating medium in which the water is kept separate from the heating medium using fluid fuel
    • 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
    • F24H1/22—Water heaters other than continuous-flow or water-storage heaters, e.g. water heaters for central heating
    • F24H1/24—Water heaters other than continuous-flow or water-storage heaters, e.g. water heaters for central heating with water mantle surrounding the combustion chamber or chambers
    • F24H1/26—Water heaters other than continuous-flow or water-storage heaters, e.g. water heaters for central heating with water mantle surrounding the combustion chamber or chambers the water mantle forming an integral body
    • 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
    • F24H1/22—Water heaters other than continuous-flow or water-storage heaters, e.g. water heaters for central heating
    • F24H1/44—Water heaters other than continuous-flow or water-storage heaters, e.g. water heaters for central heating with combinations of two or more of the types covered by groups F24H1/24 - F24H1/40 , e.g. boilers having a combination of features covered by F24H1/24 - F24H1/40
    • 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
    • F24H9/0005—Details for water heaters
    • 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
    • F24H9/139—Continuous flow heaters
    • 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
    • F24H9/14—Arrangements for connecting different sections, e.g. in water heaters 
    • 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
    • F24H9/14—Arrangements for connecting different sections, e.g. in water heaters 
    • F24H9/146—Connecting elements of a heat exchanger

Landscapes

  • 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)
  • Instantaneous Water Boilers, Portable Hot-Water Supply Apparatuses, And Control Of Portable Hot-Water Supply Apparatuses (AREA)

Abstract

Combustion chamber shaft 1 for a water heater, the said shaft surrounding, as a casing, a space which is arranged above a gas burner and which has a finned heat exchanger on its top side, the combustion chamber shaft 1 having double- walled portions on all sides, water to be heated being capable of flowing through the remaining interspace 13 between the two walls 4, 5 of the combustion chamber shaft 1, and the interconnected walls 4, 5 of the combustion chamber shaft 1 being sealingly connected to one another in the region of their lower edges and in the region of their upper edges facing the heat exchanger. The inner and outer walls 4, 5 of the combustion chamber shaft 1 are connected by means of weld seams 6, the walls 4, 5 are provided, in the region of the double-walled portions 2 of the combustion chamber shaft 1, with beads 17 running in the direction of throughflow of the water, and the beads 17 are connected to one another by means of spot welds. <IMAGE>

Description

AT 398 833 BAT 398 833 B

Die vorliegende Erfindung bezieht sich auf einen Brennkammerschacht für einen Wasserheizer, welcher als Mantel einen Raum umschließt, der über einem Gasbrenner angeordnet ist und an seiner Oberseite einen Lamelienwärmetauscher aufweist, wobei der Brennkammerschacht allseitig doppelwandige Abschnitte aufweist und der verbleibende Zwischenraum zwischen den beiden Wänden des Brennkammerschachtes 5 vom zu erwärmenden Wasser durchströmbar ist und die miteinander stehenden Wände des Brennkammerschachtes im Bereich ihrer unteren Ränder und im Bereich ihrer oberen, dem Wärmetauscher zugekehrten Ränder miteinander dicht verbunden sind.The present invention relates to a combustion chamber shaft for a water heater which, as a jacket, encloses a space which is arranged above a gas burner and has a lamellar heat exchanger on its upper side, the combustion chamber shaft having double-walled sections on all sides and the remaining space between the two walls of the combustion chamber shaft 5 can be flowed through by the water to be heated and the mutually standing walls of the combustion chamber shaft in the area of their lower edges and in the area of their upper edges facing the heat exchanger are tightly connected.

Ein solcher Brennkammerschacht ist Gegenstand der AT-PS 397.143.Such a combustion chamber shaft is the subject of AT-PS 397.143.

Der Erfindung liegt die Aufgabe zugrunde, die Verbindung der oberen und unteren Ränder des io Brennkammerschachtes möglichst einfach, aber thermisch belastbar druckdicht auszugestalten.The invention has for its object to make the connection of the upper and lower edges of the io combustion chamber shaft as simple as possible, but thermally resilient, pressure-tight.

Zur Lösung der Aufgabe wird erfindungsgemäß vorgeschlagen, daß die Verbindung der Innen- und Außenwände des Brennkammerschachtes durch Schweißnähte erfolgt.To achieve the object, it is proposed according to the invention that the connection of the inner and outer walls of the combustion chamber shaft takes place by means of weld seams.

Durch eine derartige Ausgestaltung ist einmal möglich, ohne weitere Teile die druckdichte Wasserdichtheit zu erzielen, zum anderen läßt sich diese Fertigung auf Automaten und damit einfach und kostengünstig iS durchführen.Such a configuration makes it possible, on the one hand, to achieve the pressure-tight watertightness without further parts, and on the other hand, this production can be carried out on machines and thus simply and inexpensively in the sense of IS.

In Ausgestaltung der Erfindung wird vorgeschlagen, daß die Wände im Bereich der doppelwandigen Abschnitte des Brennkammerschachtes mit in Strömungsrichtung des Wassers verlaufenden Sicken versehen sind und daß die Sicken miteinander durch Punktschweißungen verbunden sind. Diese Anweisungen unterstützen die eben ausgeführte technische Lehre der Druckdichtigkeit, indem nämlich die Sicken das 20 Ausbeulen der Seitenwandungen erschweren und die Punktschweißungen einen ankerartigen Halt geben.In an embodiment of the invention, it is proposed that the walls in the region of the double-walled sections of the combustion chamber shaft be provided with beads running in the flow direction of the water and that the beads are connected to one another by spot welds. These instructions support the technical teaching of pressure tightness which has just been carried out, namely that the beads make bulging of the side walls more difficult and the spot welds give an anchor-like hold.

Durch diese Maßnahmen wird eine wesentliche Erhöhung der Festigkeit des Brennkammerschachtes erreicht. Außerdem wird durch diese Maßnahmen die Verwendung von relativ dünnen Blechen ermöglicht, da durch das abschnittsweise Verbinden der beiden Wände des Doppelmantels ein Aufweiten desselben durch den Druck des den Brennkammerschacht durchströmenden Wassers vermieden wird. 26 Die Erfindung wird nun anhand der Zeichnung näher erläutert. Dabei zeigen:These measures significantly increase the strength of the combustion chamber shaft. In addition, these measures enable the use of relatively thin sheets, since the section-wise connection of the two walls of the double jacket prevents the same from expanding due to the pressure of the water flowing through the combustion chamber shaft. 26 The invention will now be explained in more detail with reference to the drawing. Show:

Fig. 1 einen erfindungsgemäßen Brennkammerschacht in axonometrischer Darstellung,1 is a combustion chamber shaft according to the invention in an axonometric view,

Fig 2 einen Schnitt nach der Linie ll-li in der Fig. 1.,2 shows a section along the line II-li in FIG. 1,

Fig. 3 einen Schnitt nach der Linie lll-lll in der Fig. 1 und Fig. 4 einen Schnitt nach der Linie IV-IV in der Fig. 1. 30 Der Brennkammerschacht 1 ist aus Edelstahlblech durch einen Doppelmantel 2 gebildet, der einen mit einem atmosphärischen Gasbrenner versehenen Innenraum 21 umschließt und der durch miteinander dicht verbundene Außenwände 5 und Innenwände 4 gebildet ist. Dabei erfolgt die dichte Verbindung dieser beiden Wände 5 und 4 im oberen und unteren Bereich des Brennkammerschachtes 1 mittels Schweißnähten 6. 35 Zwischen den Außen- und Innenwänden 5, 4 verbleibt ein Zwischenraum 13, der im Betrieb vom zu erwärmenden Medium durchströmt ist. Dabei erstreckt sich der Zwischenraum 13 über alle vier Wände des Brennkammerschachtes 1.Fig. 3 shows a section along the line III-III in Fig. 1 and Fig. 4 shows a section along the line IV-IV in Fig. 1. 30 The combustion chamber shaft 1 is formed from stainless steel sheet by a double jacket 2, one with encloses an atmospheric gas burner interior 21 and which is formed by tightly connected outer walls 5 and inner walls 4. The tight connection of these two walls 5 and 4 takes place in the upper and lower region of the combustion chamber shaft 1 by means of weld seams 6. 35 Between the outer and inner walls 5, 4 there remains an intermediate space 13, through which the medium to be heated flows during operation. The space 13 extends over all four walls of the combustion chamber shaft 1.

Der Zwischenraum 13 ist über nicht dargestellte Einlauf- bzw. Auslaßanschlüsse mit einem Kaltwasserzufuhr- und Warmwasserabfuhrleitungen verbindbar. 40 Im oberen Bereich der Seitenwände 111 und 121, die durch die Stege 11,12 zweier U-förmiger Teile 7, 8 gebildet sind, deren Schenkel 9 und 10 miteinander stumpf mit dichten Schweißnähten verbunden werden, sind Rohre 31 eines Lamellenwärmetauschers 3 gehalten. Dabei sind in den Innenwänden 4 der einander gegenüberliegenden Seitenwände 111 und 121 Durchbrüche 14 angeordnet, die von in das Innere des Brennkammerschachtes 1 vorragende Krägen 15, in die die Rohre 31 des Lamellenwärmetauschers 3 45 eingesetzt sind, umgeben und dicht mit diesen verbunden sind.The intermediate space 13 can be connected to a cold water supply and hot water discharge lines via inlet and outlet connections, not shown. 40 In the upper region of the side walls 111 and 121, which are formed by the webs 11, 12 of two U-shaped parts 7, 8, the legs 9 and 10 of which are butt-welded together with tight weld seams, tubes 31 of a finned heat exchanger 3 are held. Openings 14 are arranged in the inner walls 4 of the mutually opposite side walls 111 and 121, which are surrounded by collars 15 projecting into the interior of the combustion chamber shaft 1, into which the tubes 31 of the finned heat exchanger 3 45 are inserted, and are tightly connected to them.

In den Innen- und Außenwänden 4, 5 sind Sicken 17 eingearbeitet, wobei die in der Innenwand 4 und Außenwand 5 angeordneten Sicken 17 im wesentlichen kongruent angeordnet sind. Dabei liegen die Böden 18 der Sicken 17 der Innenwand 4 an den Böden 18 der Sicken 17 der Außenwand 5 an, wobei die Böden 18 der Sicken durch Schweißpunkte miteinander verbunden sind. Wie aus der Zeichnung zu ersehen ist, so erstrecken sich die Sicken 17 in Durchströmungsrichtung des den Zwischenraum 13 durchströmenden Wassers, wodurch der Wasserstrom aufgeteilt und damit Verwirbelungen und die Ausbildung von strömungsmäßig weitgehend toten Räumen vermieden.Beads 17 are incorporated into the inner and outer walls 4, 5, the beads 17 arranged in the inner wall 4 and outer wall 5 being arranged essentially congruently. The bottoms 18 of the beads 17 of the inner wall 4 lie against the bottoms 18 of the beads 17 of the outer wall 5, the bottoms 18 of the beads being connected to one another by welding points. As can be seen from the drawing, the beads 17 extend in the flow direction of the water flowing through the intermediate space 13, as a result of which the water flow is divided and thus turbulence and the formation of largely dead spaces in terms of flow are avoided.

Die Außenwand 5 der Seitenwände 11 und 12 ist mit Ausdellungen 19 versehen, die von Bereichen 16 umgeben sind, in denen die Innenwand 4 dicht an der Außenwand 5 anliegt, wobei sich die Ausdellungen 55 über zwei Durchbrüche 14 der entsprechenden Innenwand 4 erstrecken und als Umlenkbögen für das die Rohre 31 durchströmenden Wassers dienen. Weiters verbindet eine Ausdellung 20 jenen Bereich der Seitenwand 11, in dem zwischen der Außenwand 5 und der Innenwand 4 ein Zwischenraum 13 vorhanden ist, mit einem Rohr 31 des Wärmetauschers 3, sodaß das Wasser aus dem Zwischenraum 13 in den 2The outer wall 5 of the side walls 11 and 12 is provided with bulges 19 which are surrounded by areas 16 in which the inner wall 4 lies closely against the outer wall 5, the bulges 55 extending over two openings 14 in the corresponding inner wall 4 and as deflection arches serve for the water flowing through the tubes 31. Furthermore, a bulge 20 connects that area of the side wall 11 in which there is a space 13 between the outer wall 5 and the inner wall 4 with a pipe 31 of the heat exchanger 3, so that the water from the space 13 in FIGS

Claims (1)

ΑΤ 398 833 Β Wärmetauscher 3 überströmen kann. Die nicht dargestellten Einlauf- und Auslaufanschlüsse sind an der Außenseite der Seitenwand 12 angeordnet. Patentansprüche 1. Brennkammerschacht für einen Wasserheizer, welcher als Mantel einen Raum umschließt, der über einem Gasbrenner angeordnet ist und an seiner Oberseite einen Lamellenwärmetauscher aufweist, wobei der Brennkammerschacht allseitig doppelwandige Abschnitte aufweist und der verbleibende Zwischenraum zwischen den beiden Wänden des Brennkammerschachtes vom zu erwärmenden Wasser durchströmbar ist und die miteinander in Verbindung stehenden Wände des Brennkammerschachtes im Bereich ihrer unteren Ränder und im Bereich ihrer oberen, dem Wärmetauscher zugekehrten Rändern miteinander dicht verbunden sind, dadurch gekennzeichnet, daß die Verbindung der Innen- und Außenwände (4, 5) des Brennkammerschachtes (1) durch Schweißnähte erfolgt, daß die Wände (4, 5) im Bereich der doppelwandigen Abschnitte (2) des Brennkammerschachtes (1) mit in Durchströmungsrichtung des Wassers verlaufenden Sicken (17) versehen sind und daß die Sicken (17) miteinander durch Punktschweißungen verbunden sind. Hiezu 4 Blatt Zeichnungen 3ΑΤ 398 833 Β Heat exchanger 3 can overflow. The inlet and outlet connections, not shown, are arranged on the outside of the side wall 12. 1. combustion chamber shaft for a water heater, which encloses a space as a jacket, which is arranged above a gas burner and has a lamella heat exchanger on its top, wherein the combustion chamber shaft has double-walled sections on all sides and the remaining space between the two walls of the combustion chamber shaft from the water to be heated can flow through and the interconnected walls of the combustion chamber shaft are tightly connected to each other in the area of their lower edges and in the area of their upper edges facing the heat exchanger, characterized in that the connection of the inner and outer walls (4, 5) of the combustion chamber shaft ( 1) by welding seams that the walls (4, 5) in the region of the double-walled sections (2) of the combustion chamber shaft (1) are provided with beads (17) running in the flow direction of the water, and that the beads (17) are connected to one another by spot welding are connected. Including 4 sheets of drawings 3
AT0098292A 1991-07-22 1992-05-14 Combustion chamber shaft AT398833B (en)

Priority Applications (7)

Application Number Priority Date Filing Date Title
AT0098292A AT398833B (en) 1992-05-14 1992-05-14 Combustion chamber shaft
DE59208505T DE59208505D1 (en) 1991-07-22 1992-07-22 DOUBLE-WALLED HEATING SHAFT
AT92916041T ATE153126T1 (en) 1991-07-22 1992-07-22 DOUBLE-WALLED HEATING SHAFT
EP92916041A EP0595945B1 (en) 1991-07-22 1992-07-22 Double-walled heating section
PCT/DE1992/000603 WO1993002326A1 (en) 1991-07-22 1992-07-22 Double-walled heating section
DE4224212A DE4224212A1 (en) 1991-07-22 1992-07-22 Double-walled combustion chamber for water heater - has lamellar tubes, surrounded on opposite sides by top sections of double jacket
ES92916041T ES2102511T3 (en) 1991-07-22 1992-07-22 DOUBLE WALL HEATING SECTION.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
AT0098292A AT398833B (en) 1992-05-14 1992-05-14 Combustion chamber shaft

Publications (2)

Publication Number Publication Date
ATA98292A ATA98292A (en) 1994-06-15
AT398833B true AT398833B (en) 1995-02-27

Family

ID=3504241

Family Applications (1)

Application Number Title Priority Date Filing Date
AT0098292A AT398833B (en) 1991-07-22 1992-05-14 Combustion chamber shaft

Country Status (1)

Country Link
AT (1) AT398833B (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1139036A2 (en) * 2000-03-29 2001-10-04 Robert Bosch Gmbh Heat exchanger for condensing boiler

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT397143B (en) * 1992-05-11 1994-02-25 Vaillant Gmbh Combustion chamber shaft designed as a double casing

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT397143B (en) * 1992-05-11 1994-02-25 Vaillant Gmbh Combustion chamber shaft designed as a double casing

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1139036A2 (en) * 2000-03-29 2001-10-04 Robert Bosch Gmbh Heat exchanger for condensing boiler
EP1139036A3 (en) * 2000-03-29 2003-03-12 Robert Bosch Gmbh Heat exchanger for condensing boiler

Also Published As

Publication number Publication date
ATA98292A (en) 1994-06-15

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