EP0169163B1 - Water heating boiler - Google Patents
Water heating boiler Download PDFInfo
- Publication number
- EP0169163B1 EP0169163B1 EP85730093A EP85730093A EP0169163B1 EP 0169163 B1 EP0169163 B1 EP 0169163B1 EP 85730093 A EP85730093 A EP 85730093A EP 85730093 A EP85730093 A EP 85730093A EP 0169163 B1 EP0169163 B1 EP 0169163B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- water
- chamber
- wall
- combustion chamber
- plates
- 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.)
- Expired - Lifetime
Links
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 47
- 238000010438 heat treatment Methods 0.000 title claims description 8
- 238000002485 combustion reaction Methods 0.000 claims abstract description 14
- 239000003546 flue gas Substances 0.000 claims description 16
- 206010022000 influenza Diseases 0.000 claims description 8
- 239000007789 gas Substances 0.000 claims 1
- 239000000567 combustion gas Substances 0.000 abstract 1
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 12
- 230000007797 corrosion Effects 0.000 description 2
- 238000005260 corrosion Methods 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
Images
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
- F24H1/24—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
- F24H1/28—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 including one or more furnace or fire tubes
- F24H1/282—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 including one or more furnace or fire tubes with flue gas passages built-up by coaxial water mantles
Definitions
- the invention relates to a water boiler with a combustion chamber heated by an axially arranged burner, which is enclosed by a water jacket formed by two annular, preferably coaxial water chambers, connected to a flow and a return, and permeated by flue gas flues, which has three circumferentially closed walls, one of which the inner wall encloses the combustion chamber and delimits the inner water chamber on the inside, the middle wall separates the two water chambers from one another and the outer wall delimits the outer water chamber, with cavity-forming elements in at least one of the two water chambers protruding to form the flue gas passages protruding with at least one of the Walls forming water chambers are thermally connected.
- an inner and an outer water chamber jointly form the boundary surfaces of an annular gap which serves to guide the flue gas, which however results in the necessity of arranging water-side supports which are expensive to manufacture and are at risk of corrosion.
- a hot water boiler is also known from DE-GM 18 89 170, in which the water reservoir is divided into an inner and an outer water jacket by a special design of the flue gas flues. It is disadvantageous that the deflection area of the flue gas duct absorbs a considerable amount of heat from the flue gases, but there is no water-carrying container part adjacent to it.
- the object of the invention is to avoid these disadvantages with the simplest possible construction of the boiler from robust components.
- the cavity-forming elements of ribbed profile plates are formed in a water heating boiler of the type mentioned at the outset and fastened to the central wall with the ribbed side, a deflecting plate delimiting the end of the space enclosed by the central wall opposite the burner for the flue gases emerging from the combustion chamber at the same time forms the inner end wall of the outer water chamber having a double-walled cup-shaped profile.
- the standing water boiler shown as an example comprises a combustion chamber 2 heated by an axially arranged lint burner 1, which is enclosed by a water jacket consisting of two annular, coaxial water chambers 3 and 4, connected to a supply 5 and a return 6.
- This water jacket is formed by a total of three circumferentially closed walls, namely by the inner wall 7, which includes the combustion chamber 2 and delimits the inner water chamber 4 on the inside, by the middle wall 8, which separates the two water chambers 3 and 4, and by the outer Wall 9, which delimits the outer water chamber 3.
- rib profile plates 11 are attached to the wall in a heat-conducting manner, protruding into the inner water chamber 4.
- Such rib profile plates 11 could, however, in the context of the invention - additionally or alternatively - also be attached to other walls of the water heating boiler.
- the rib profile plates 11 are welded to the wall 8 as cavity-forming elements with the side against which their cavities formed between the ribs are open. Depending on whether they are welded to an outside or an inside of the annular walls, their void-forming, ribbed side is convex or concave. The weld connection is made in the area the edge ribs.
- the water to be heated first flows from the return 6 into the outer water chamber 3, via upper and lower through openings 12 of the wall 8 shown in FIG. 3 into the inner water chamber 4 and is partly through the wall 7 and partly from those protruding into the chamber 4 , flue gas-carrying rib profile plates 11 heated.
- the passage openings 12 mentioned are each provided between such rib profile plates 11 in the wall 8.
- the flue gases are diverted from the combustion chamber 2 via a hot or cooled baffle plate 13 and the inlets 10 'into the flue gas flues 10 and - in counterflow to the direction of the burner 1 - enter the flue gas plenum 14, from where they are discharged via flue pipes, not shown.
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)
- Details Of Fluid Heaters (AREA)
- Instantaneous Water Boilers, Portable Hot-Water Supply Apparatuses, And Control Of Portable Hot-Water Supply Apparatuses (AREA)
- Steam Or Hot-Water Central Heating Systems (AREA)
- Sorption Type Refrigeration Machines (AREA)
- Incineration Of Waste (AREA)
Abstract
Description
Die Erfindung betrifft einen Wasserheizkessel mit einem von einem axial angeordneten Brenner beheizten Brennraum, der von einem aus zwei ringförmigen, vorzugsweise koaxialen Wasserkammern gebildeten, an einen Vorlauf und einen Rücklauf angeschlossenen, von Rauchgaszügen durchsetzten Wassermantel umschlossen ist, der drei umfanggeschlossene Wandungen aufweist, von denen die innere Wandung die Brennkammer einschließt und die innere Wasserkammer innenseitig begrenzt, die mittlere Wandung die beiden Wasserkammern voneinander trennt und die äußere Wandung die äußere Wasserkammer begrenzt, wobei zur Bildung der Rauchgaszüge dienende hohlraumbildende Elemente in zumindest eine der beiden Wasserkammern ausragend mit zumindest einer der die Wasserkammern bildenden Wandungen wärmeleitend verbunden sind.The invention relates to a water boiler with a combustion chamber heated by an axially arranged burner, which is enclosed by a water jacket formed by two annular, preferably coaxial water chambers, connected to a flow and a return, and permeated by flue gas flues, which has three circumferentially closed walls, one of which the inner wall encloses the combustion chamber and delimits the inner water chamber on the inside, the middle wall separates the two water chambers from one another and the outer wall delimits the outer water chamber, with cavity-forming elements in at least one of the two water chambers protruding to form the flue gas passages protruding with at least one of the Walls forming water chambers are thermally connected.
Die Vorteile solcher Heizkessel liegen darin, daß die Temperatur an den Spitzen der Rauchgasführungen sehr rasch ansteigt.The advantages of such boilers are that the temperature at the tips of the flue gas guides increases very quickly.
Nachteilig ist, daß die Brennkammertüre durch die auf sie gerichtete Brennerflamme thermisch stark belastet wird und die Hitze in der Brennkammer-Stirnseite zu höherer NOX-Bildung führt. In den unteren Bereichen der Rauchgasführungen kann es hingegen zu Unterschreitungen der Taupunkttemperatur und demnach zur Ausbildung von Kondensaten kommen, die dann eine Erhöhung der Korrosionsgefahr zur Folge haben.It is disadvantageous that the combustion chamber door is subjected to high thermal loads due to the burner flame directed at it and the heat in the front of the combustion chamber leads to higher NO x formation. In the lower areas of the flue gas ducts, on the other hand, the dew point temperature may be fallen short of, and consequently condensates may form, which then increase the risk of corrosion.
Bei anderen vorbekannten Wasserheizkesseln bilden eine innere und eine äußere Wasserkammer gemeinsam die Begrenzungsflächen eines der Rauchgasführung dienenden Ringspaltes, wodurch sich jedoch die Notwendigkeit der Anordnung wasserseitiger Stützen ergibt, die aufwendig herzustellen und korrosionsgefährdet sind.In other previously known water boilers, an inner and an outer water chamber jointly form the boundary surfaces of an annular gap which serves to guide the flue gas, which however results in the necessity of arranging water-side supports which are expensive to manufacture and are at risk of corrosion.
Aus dem DE-GM 18 89 170 ist weiterhin ein Warmwasserheizungskessel bekannt, bei dem durch eine spezielle Ausführung der Rauchgaszüge eine Teilung des Wasserreservoirs in einen inneren und einen äußeren Wassermantel erfolgt. Nachteilig ist, daß gerade der Umlenkbereich der Rauchgasführung eine erhebliche Wärmemenge von den Rauchgasen aufnimmt, diesem aber kein wasserführender Behälterteil benachbart ist.A hot water boiler is also known from DE-GM 18 89 170, in which the water reservoir is divided into an inner and an outer water jacket by a special design of the flue gas flues. It is disadvantageous that the deflection area of the flue gas duct absorbs a considerable amount of heat from the flue gases, but there is no water-carrying container part adjacent to it.
Schlußendlich wird in der DE-OS 32 17 355 ein Heizungskessel mit einem inneren und einem äußeren Wassermantel beschrieben, wobei der äußere Wassermantel lediglich durch Wärmeabstrahlung aus dem inneren Wassermantel erwärmt wird. Rauchgasrohre sind nur im Innenmantel vorgesehen.Finally, a heating boiler with an inner and an outer water jacket is described in DE-OS 32 17 355, the outer water jacket being heated only by heat radiation from the inner water jacket. Flue gas pipes are only provided in the inner jacket.
Aufgabe der Erfindung ist die Vermeidung dieser Nachteile bei möglichst einfachem Aufbau des Kessels aus robusten Bestandteilen.The object of the invention is to avoid these disadvantages with the simplest possible construction of the boiler from robust components.
Erfindungsgemäß sind bei einem Wasserheizkessel der eingangs bezeichneten Gattung die hohlraumbildenden Elemente von Rippenprofilplatten gebildet und mit der gerippten Seite an der mittleren Wandung befestigt, wobei eine die dem Brenner gegenüberliegende Stirnseite des von der mittleren Wandung umschlossenen Raumes begrenzende Umlenkplatte für die aus der Brennkammer austretenden Rauchgase gleichzeitig die innere Stirnwand der ein doppelwandig topfförmiges Profil aufweisenden äußeren Wasserkammer bildet.According to the invention, the cavity-forming elements of ribbed profile plates are formed in a water heating boiler of the type mentioned at the outset and fastened to the central wall with the ribbed side, a deflecting plate delimiting the end of the space enclosed by the central wall opposite the burner for the flue gases emerging from the combustion chamber at the same time forms the inner end wall of the outer water chamber having a double-walled cup-shaped profile.
Dank dieser Lösung sind nicht nur die Wandungen sehr einfach gestaltbar, sondern es lassen sich auch die Rauchgaszüge unschwer durch eine solide Verbindung der hohlraumbildenden Elemente mit der mittleren der die Wasserkammern begrenzenden Wandungen herstellen. Weil diese Elemente jeweils nur mit der mittleren Wandung in Verbindung zu stehen brauchen, ist der Gefahr des Auftretens temperaturbedingter Spannungen weitgehend vorgebeugt.Thanks to this solution, not only can the walls be designed very easily, but also the flue gas flues can be easily produced by a solid connection of the cavity-forming elements with the middle of the walls delimiting the water chambers. Because these elements only need to be connected to the middle wall, the risk of temperature-related stresses is largely prevented.
Ein Ausführungsbeispiel des Erfindungsgegenstandes ist in der Zeichnung schematisch dargestellt, wobei
- Fig.1
- einen Vertikalschnitt durch den Wasserheizkessel nach I-I der Fig.3,
- Fig.2
- in schaubildlicher Darstellung einen Kesselteil und
- Fig.3
- einen schematischen Horizontalschnitt durch den Kessel nach III-III der Fig.1 zeigt.
- Fig. 1
- a vertical section through the water boiler according to II of Figure 3,
- Fig. 2
- a diagram of a boiler part and
- Fig. 3
- shows a schematic horizontal section through the boiler according to III-III of Figure 1.
Der beispielsweise dargestellte stehende Wasserheizkessel umfaßt einen von einem darin axial angeordneten Sturzbrenner 1 beheizten Brennraum 2, der von einem aus zwei ringförmigen, koaxialen Wasserkammern 3 und 4 bestehenden, an einen Vorlauf 5 und einen Rücklauf 6 angeschlossenen Wassermantel umschlossen ist.The standing water boiler shown as an example comprises a
Dieser Wassermantel wird von insgesamt drei umfanggeschlossenen Wandungen gebildet, nämlich von der inneren Wandung 7, die die Brennkammer 2 einschließt und die innere Wasserkammer 4 innen begrenzt, von der mittleren Wandung 8, die die beiden Wasserkammern 3 und 4 voneinander trennt, und von der äußeren Wandung 9, die die äußere Wasserkammer 3 begrenzt.This water jacket is formed by a total of three circumferentially closed walls, namely by the
Zur Bildung der Rauchgaszüge 10 sind erfindungsgemäß an der Wandung 8 Rippenprofilplatten 11 wärmeleitend, in die innere Wasserkammer 4 ausragend, befestigt. Solche Rippenprofilplatten 11 könnten jedoch im Rahmen der Erfindung - zusätzlich oder alternativ - auch an anderen Wandungen des Wasserheizkessels befestigt sein.To form the
Die Rippenprofilplatten 11 sind als hohlraumbildende Elemente mit jener Seite, gegen die ihre zwischen den Rippen gebildeten Hohlräume offen sind, an der Wandung 8 angeschweißt. Je nachdem, ob sie mit einer Außen- oder einer Innenseite der ringförmigen Wandungen verschweißt sind, ist ihre hohlraumbildende, gerippte Seite konvex oder konkav gewölbt. Die Schweißverbindung erfolgt jeweils im Bereich der Randrippen.The
Das zu beheizende Wasser fließt vom Rücklauf 6 zunächst in die äußere Wasserkammer 3, über aus Fig.3 ersichtliche obere und untere Durchtrittsöffnungen 12 der Wandung 8 in die innere Wasserkammer 4 und wird teils durch die Wandung 7, teils von den in die Kammer 4 ausragenden, rauchgasführenden Rippenprofilplatten 11 erhitzt.The water to be heated first flows from the
Die erwähnten Durchtrittsöffnungen 12 sind jeweils zwischen solchen Rippenprofilplatten 11 in der Wandung 8 vorgesehen.The
Die Rauchgase werden aus der Brennkammer 2 über eine heiße oder gekühlte Umlenkplatte 13 und die Einläße 10' in die Rauchgaszüge 10 umgeleitet und gelangen - im Gegenstrom zur Richtung des Brenners 1 - in den Abgassammelraum 14, von wo sie über nicht dargestellte Abgasleitungen abgeführt werden.The flue gases are diverted from the
Claims (4)
- A water-heating boiler comprising a combustion chamber, which is heated by an axially extending burner and is surrounded by a water jacket, which is constituted by two annular and preferably coaxial water chambers and is connected to a flow line (5) and a return line (6), flues (10) extending through the water jacket, which comprises three peripherally closed walls (7, 8, 9), of which the inner wall (7) encloses the combustion chamber and defines the inner wa r chamber (4) on the inside, the intermediate wall (8) separates the two water chambers from each other and the outer wall (9) defines the outer water chamber, and the flues are formed by cavity-defining elements (11), which protrude out into at least one of the two water chambers (3, 4) and are heat-conductively connected to at least one of the walls (7, 8) which define the water chambers (3, 4), characterized in that the cavity-defining elements are constituted by plates (11) which have a ribbed profile and with the ribbed side are secured to the intermediate wall (8), the space that is surrounded by the intermediate wall (8) at that end face which is opposite to the burner (1) is defined by a deflecting plate (13), which serves to deflect the flue gases leaving the combustion chamber (2) and also constitutes the inner end wall of the outer water chamber (3), which has the shape of a double-walled pot in cross-section.
- A water-heating boiler according to claim 1, characterized in that the plates (11) having a ribbed profile are secured to the intermediate wall (8) on that side thereof. which faces the combustion chamber (2).
- A water-heating boiler according to claim 1 or 2, characterized in that the plates (11) having a ribbed profile are secured to the intermediate wall (8) and are peripherally spaced apart and said intermediate wall (8) is formed between said plates (11) with through openings (12) for a radial flow of water form one water chamber to the other (3 and 4).
- A water-heating boiler according to any of claims 1 to 3, characterized by an exhaust gas header (14), which is disposed at that end which is associated with the burner (1), wherein the flues (10) of the plates (11) having a ribbed profile open jointly into said compartment.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| AT85730093T ATE67584T1 (en) | 1984-07-14 | 1985-07-02 | WATER BOILER. |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE8421409U | 1984-07-14 | ||
| DE19848421409U DE8421409U1 (en) | 1984-07-14 | 1984-07-14 | WATER BOILER |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| EP0169163A2 EP0169163A2 (en) | 1986-01-22 |
| EP0169163A3 EP0169163A3 (en) | 1987-12-09 |
| EP0169163B1 true EP0169163B1 (en) | 1991-09-18 |
Family
ID=6768951
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP85730093A Expired - Lifetime EP0169163B1 (en) | 1984-07-14 | 1985-07-02 | Water heating boiler |
Country Status (3)
| Country | Link |
|---|---|
| EP (1) | EP0169163B1 (en) |
| AT (1) | ATE67584T1 (en) |
| DE (2) | DE8421409U1 (en) |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1889170U (en) * | 1964-01-13 | 1964-03-12 | W & F Dinkel | BOILERS FOR HOT WATER HEATING. |
| SE341060B (en) * | 1967-06-17 | 1971-12-13 | Belleli & C S A S | |
| DE3217355C2 (en) * | 1982-05-08 | 1984-08-30 | Wolf Klimatechnik GmbH, 8302 Mainburg | Heating boiler |
-
1984
- 1984-07-14 DE DE19848421409U patent/DE8421409U1/en not_active Expired
-
1985
- 1985-07-02 AT AT85730093T patent/ATE67584T1/en not_active IP Right Cessation
- 1985-07-02 EP EP85730093A patent/EP0169163B1/en not_active Expired - Lifetime
- 1985-07-02 DE DE8585730093T patent/DE3584121D1/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| EP0169163A2 (en) | 1986-01-22 |
| DE3584121D1 (en) | 1991-10-24 |
| ATE67584T1 (en) | 1991-10-15 |
| EP0169163A3 (en) | 1987-12-09 |
| DE8421409U1 (en) | 1984-10-11 |
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