EP0863365B1 - Dampferzeuger - Google Patents
Dampferzeuger Download PDFInfo
- Publication number
- EP0863365B1 EP0863365B1 EP97120542A EP97120542A EP0863365B1 EP 0863365 B1 EP0863365 B1 EP 0863365B1 EP 97120542 A EP97120542 A EP 97120542A EP 97120542 A EP97120542 A EP 97120542A EP 0863365 B1 EP0863365 B1 EP 0863365B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- burner
- passage
- steam generator
- ducts
- generator according
- 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
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F22—STEAM GENERATION
- F22B—METHODS OF STEAM GENERATION; STEAM BOILERS
- F22B7/00—Steam boilers of furnace-tube type, i.e. the combustion of fuel being performed inside one or more furnace tubes built-in in the boiler body
- F22B7/12—Steam boilers of furnace-tube type, i.e. the combustion of fuel being performed inside one or more furnace tubes built-in in the boiler body with auxiliary fire tubes; Arrangement of header boxes providing for return diversion of flue gas flow
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F22—STEAM GENERATION
- F22B—METHODS OF STEAM GENERATION; STEAM BOILERS
- F22B13/00—Steam boilers of fire-box type, i.e. the combustion of fuel being performed in a chamber or fire-box with subsequent flue(s) or fire tube(s), both chamber or fire-box and flues or fire tubes being built-in in the boiler body
- F22B13/005—Steam boilers of fire-box type, i.e. the combustion of fuel being performed in a chamber or fire-box with subsequent flue(s) or fire tube(s), both chamber or fire-box and flues or fire tubes being built-in in the boiler body with flues, other than fire tubes
Definitions
- the invention relates to a steam generator according to the preamble of patent claim 1.
- a steam generator for a cooking device in which a burner shaft with channels for heat exchange via a simple transverse shaft Cross-section is connected, which is formed in a steam boiler.
- This way of construction is complex and does not lead to an optimal diversion of the exhaust gases of a burner, which are introduced into the burner shaft, to the channels of the heat exchanger section.
- a generic steam generator is known from DE 28 07 166.
- This Steam generators flow exhaust gases from a burner from a flame tube in which the The burner is located in smoke pipes via a final combustion chamber.
- the smoke pipes run through a steam drum, in which there is a heat exchange between the the flue gases flowing and a boiler fluid in the steam drum comes.
- a disadvantage of this steam generator is that it is also not constructive simple type to different exhaust gas flows, especially when using different Burner, can be adjusted to ensure an even distribution of exhaust gases to achieve the flue pipes.
- the generic steam generator such to develop further that the disadvantages of the prior art are overcome.
- a steam generator is to be created in which the transfer of gas flow from the burner to channels of a heat exchanger section with simple means an optimization which allows flow conditions in the channel or channels of the heat exchanger section, even without a new design and redesign of the internals of the steam generator an adaptation to different flow conditions, such as when using different Burner, is possible.
- the insert can in particular form a flow bypass, which allows hot Exhaust gases in an area of the channels of the heat exchanger in which the exhaust gases are already cooled down and in which otherwise only a small heat exchange would take place, or the passage can be designed as a throttle, the gas passing through after the passage on the side of the heat exchanger section is relaxed.
- connection of the burner shaft with the flow system of the heat exchanger section solved in a simple and elegant way, while at the same time the flow conditions in the passage through the choice of a particular shape of the Use during the production of the steam generator so that an optimal Distribution of the exhaust gas flow to the channels for heat exchange occurs.
- the cross section of the passage between the burner shaft and the heat exchanger section can be set so that the proportion of the gas flow which to that of channels in the heat exchanger section which are further away from the burner shaft are enlarged and thus the distribution of the gas flow to the channels of the heat exchanger section is evened out. Since the use is independent of the steam boiler and the Burner shaft can be produced, other flow-guiding or limiting measures realized in a simple manner by appropriate shaping of the insert become.
- the steam generator a steam boiler 1 filled with water with an outlet 3, through which steam can be removed.
- the water level in the Steam boiler is indicated by hatched lines.
- a burner shaft 5 is formed, in the over a Overheating protection tube 7 the exhaust gases of a gas burner (not shown) be initiated.
- These exhaust gases become a heat exchanger section 10 passed, which a plurality of channels 12a, 12b unc 12c, which branch off from a distribution channel 14 and through which the flue gases of the burner to a fume cupboard be directed.
- the distribution channel 14 also opens into the fume cupboard.
- This opening is a H-shaped insert 20 used, two parallel each Flanges the insert after the two wall sections 15a and 15b Grasp kind of a groove, so that the insert by plugging and Moving can be assembled.
- the insert 20 serves as a throttle shaft and has an upwardly closed cavity 22 on.
- the insert 20 projects down over the lower neck of the Channels 12a to 12c and forms together with the wall sections 15a and 15b and the bottom of the opening between them Wall sections a passage 25 and thus a flow restriction for the gas stream coming from the burner shaft.
- the distribution channel 14 extends in a lower area under the side channels 12a, 12b and 12c, see above that a deflection section with a larger cross section than that of the passage 25 is formed.
- the insert 20 By moving the insert 20 can the cross section of the passage 25, which the Transition from the burner shaft 5 to the heat exchanger section 10 forms, are set so that particularly favorable flow conditions and an optimal heat transfer can be guaranteed.
- This cross-section is used for operation by fixing the insert 20 kept constant.
- the combustion chamber of the gas burner preferably goes directly into the overheating protection tube 7, which e.g. are made of steel can.
- the overheating protection tube 7 conducts the exhaust gases of the burner to a level below the water level in the steam generator 1 and preferably up to approximately the level of the approach of the channels 12a to 12c. In this way it is avoided that the hot exhaust gases of the burner with a non-cooled wall section of the burner shaft 5 come in contact above the water level and there cause overheating.
- the overheat protection tube Part of the burner's combustion chamber.
- FIGS. 3 and 4 Invention has the insert 20 additional pipe sections 30 and 32 on which the distribution channel 14 with the inner cavity 22nd connect the insert 20.
- the interior of the insert 20 forms thus an uncooled bypass section for part of the hot Exhaust gases that come from the burner shaft 5 and feed them hot Exhaust gases at locations of channels 12a to 12c where those Exhaust gases that have not been routed via insert 20 have already cooled down. This is a leveling out the heat transfer in the axial direction. Since the hot exhaust gases Area of the passage 25 are under a higher pressure, than the already cooled exhaust gases in the channels 12a to 12c at the level of the pipe connections 30 and 32, arises in the area of the passage 25 a suction into the shaft 22, the bypass flow through this shaft.
- FIGS. 5 and 6 essentially corresponds to the embodiment according to FIG. 3 and 4.
- the same constructed heat exchanger sections 110a and 110b are provided, which heat exchanger channels 112a to 112c and 112e to 112f, respectively and have distribution channels 114a and 114b.
- Every heat exchanger section is associated with a hollow insert 120a or 120b, which in the Area of the connecting section with the combustion chamber 3 a Passage 125a and 125b limited and pipes 130a and 130a and 132b and 132b with which hot exhaust gases are passed to a higher one In place of the distribution shafts 114a and 114b can.
- Heat exchanger sections also other heat exchanger sections be provided along for example an axis perpendicular to the connection axis between the heat exchanger sections 110a and 110b can be arranged. Others too for example ring or polygonal arrangements of Heat exchanger sections are possible. Likewise, several can 1 with each other or with heat exchangers 3 can be combined.
- FIGS. 7 and 8 essentially corresponds to the embodiment according to FIG. 3 and 4.
- the insert 20 extends not to the top of the burner shaft, but ends at a certain distance from it, being inner cavity 22 is closed at the top.
- Above the Insert 20 is another between the wall sections 15a and 15b, downwardly closed insert 40 arranged, wherein between the lower end of the insert 40 and the upper end of the Insert 20 a passage 42 remains free.
- This passage serves in same as the pipes 30 and 32 of the transfer of hot exhaust gases in an upper area of the distribution channel 14 or the channels 12a to 12c, in which exhaust gases that do not cross the path have taken the channel 38, already by heat exchange with the Liquid in the steam boiler has already cooled down.
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
- Detergent Compositions (AREA)
- Engine Equipment That Uses Special Cycles (AREA)
- Combustion Of Fluid Fuel (AREA)
Description
- Fig. 1
- zeigt einen Längsschnitt eines erfindungsgemäßen Dampferzeugers.
- Fig. 2
- zeigt eine Draufsicht des Dampferzeugers gemäß Fig. 1.
- Fig. 3
- zeigt einen Längsschnitt einer zweiten Ausführungsform des erfindungsgemäßen Dampferzeugers.
- Fig. 4
- zeigt eine Draufsicht des Dampferzeugers gemäß Fig. 3.
- Fig. 5
- zeigt einen Längsschnitt einer dritten Ausführungsform des erfindungsgemäßen Dampferzeugers.
- Fig. 6
- zeigt eine Draufsicht des Dampferzeugers gemäß Fig. 5.
- Fig. 7
- zeigt einen Längsschnitt einer vierten Ausführungsform der Erfindung
- Fig. 8
- zeigt eine Draufsicht des Dampferzeugers gemäß Fig. 7.
Claims (10)
- Dampferzeuger, insbesondere zur Verwendung in der Küchentechnik, der einen Dampfkessel (1), einen Brennerschacht (5) zur Zuleitung heißer Abgase von einem Brenner und mindestens einen Wärmetauscherabschnitt (10) mit einem oder mehreren Kanälen (12a, 12b, 12c) zum Durchleiten der Abgase des Brenners und zum Wärmeaustausch mit der in dem Dampfkessel (1) enthaltenen Flüssigkeit aufweist, wobei der oder die Kanäle (12a, 12b, 12c) des Wärmetauscherabschnitts (10) einerseits mit einem Abzug und andererseits über einen Verbindungsabschnitt mit dem Brennerschacht (5) verbunden und so angeordnet sind, daß die Strömungsrichtung der von dem Brenner zu dem Abzug strömenden Gase in dem oder den Kanälen (12a, 12b, 12c) verschieden von der Strömungsrichtung in dem Brennerschacht (5) ist, der Verbindungsabschnitt einen durch eine Öffnung in einer Wand (15a, 15b) des Brennerschachtes (5) und einen Einsatz (20) gebildeten Durchlaß (25) aufweist, und die Öffnung teilweise durch den Einsatz (20) verschlossen ist, dadurch gekennzeichnet, daß der Einsatz (20) mit der Wand (15a, 15b) des Brennerschachtes (5) nach Art einer Nut/Federverbindung verbunden ist.
- Dampferzeuger nach Anspruch 1, dadurch gekennzeichnet, daß
die Öffnung in einer Seitenwand eine Mündung auf der Eintrittsseite der von dem Brenner kommenden Gase in den Brennerschacht (5) aufweist. - Dampferzeuger nach Anspruch 1 oder 2, dadurch gekennzeichnet, daß der Einsatz (20) in seinem Inneren einen Hohlraum (22) mit einer Öffnung aufweist, die in den Durchlaß (25) mündet.
- Dampferzeuger nach 3, dadurch gekennzeichnet , daß der Hohlraum zumindest eine weitere Öffnung (30, 32) aufweist, die mit einem oder mehreren Kanälen (12a, 12b, 12c) des Wärmetauscherabschnitts (10) an einer Stelle stromabwärts von dem Durchlaß (25) verbunden ist, so daß ein Teil des Strömungsweges in dem oder den Kanälen (12a, 12b, 12c) überbrückt wird.
- Dampferzeuger nach einem der Ansprüche 1 bis 4, dadurch gekennzeichnet, daß der Wärmetauscherabschnitt (10) einen sich an den Durchlaß (25) stromabwärts anschließenden Verteilerkanal (14) aufweist, von dem mehrere Seitenkanäle (12a, 12b, 12c) abzweigen.
- Dampferzeuger nach Anspruch 5, gekennzeichnet durch eine zwischen dem Durchlaß (25) und den Seitenkanälen (12a, 12b, 12c) angeordnete Umlenkeinrichtung zur Umlenkung der von dem Durchlaß (25) kommenden Abgase in die Längsrichtung der Seitenkanäle (12a, 12b, 12c).
- Dampferzeuger nach einem der Ansprüche 1 bis 6, dadurch gekennzeichnet, daß er mehrere Wärmetauscherabschnitte (110a, 110b) aufweist, deren Strömungssysteme für die Abgase des Brenners jeweils über einen Durchlaß (125a, 125b) in einer wand des Brennerschachtes mit dem Brennerschacht (5) verbunden ist.
- Dampferzeuger nach einem der Ansprüche 1 bis 7, gekennzeichnet durch ein Überhitzungsschutzrohr (7) in dem Brennerschacht (5) zum Einleiten der Abgase des Brenners in den Brennerschacht (5) unterhalb des Niveaus des Flüssigkeitspegels in dem Dampfkessel (1).
- Dampferzeuger nach Anspruch 8, dadurch gekennzeichnet, daß sich die Öffnung des Überhitzungsschutzrohrs (7) kurz oberhalb des Niveaus des oder der Durchlässe (25; 125a, 125b) befindet, welche den Brenner (5) mit dem Strömungssystem des oder der Wärmetauscherabschnitte (10; 110a, 110b) verbinden.
- Dampferzeuger nach Anspruch 8 oder 9, dadurch gekennzeichnet, daß ein Überleitungskanal (38) zwischen den wänden des Brennerschachts (5) und dem Überhitzungsschutzrohr (7) ausgebildet ist und der Einsatz (20, 40) einen zweiten in den Überleitungskanal (38) mündenden Durchlaß (42) aufweist, welcher einen oder mehrere Kanäle (12a, 12b, 12c, 14) eines Wärmetauscherabschnitts mit dem Überleitungskanal (38) an einer Stelle stromabwärts von dem ersten Durchlaß (25) verbindet, so daß ein Teil des Strömungsweges von dem ersten Durchlaß (25) zu dem Abzug durch die Kanäle (12a, 12b, 12c, 14) überbrückt wird, wobei der erste Durchlaß (25) außerhalb des Überleitungskanals (38) ausgebildet ist.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19708229A DE19708229C2 (de) | 1997-02-28 | 1997-02-28 | Dampferzeuger |
DE19708229 | 1997-02-28 |
Publications (3)
Publication Number | Publication Date |
---|---|
EP0863365A2 EP0863365A2 (de) | 1998-09-09 |
EP0863365A3 EP0863365A3 (de) | 2000-08-02 |
EP0863365B1 true EP0863365B1 (de) | 2002-10-16 |
Family
ID=7821879
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP97120542A Expired - Lifetime EP0863365B1 (de) | 1997-02-28 | 1997-11-24 | Dampferzeuger |
Country Status (6)
Country | Link |
---|---|
US (1) | US6076518A (de) |
EP (1) | EP0863365B1 (de) |
JP (1) | JP3527841B2 (de) |
AT (1) | ATE226296T1 (de) |
DE (2) | DE19708229C2 (de) |
DK (1) | DK0863365T3 (de) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP3701797A1 (de) | 2019-02-26 | 2020-09-02 | Electrolux Professional S.p.A. | Ofen mit einem dampfgenerator |
Families Citing this family (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6269580B1 (en) * | 1998-10-14 | 2001-08-07 | Asahi Kogaku Kogyo Kabushiki Kaisha | Motor-driven focusing apparatus of a sighting telescope |
DE20321767U1 (de) | 2003-04-07 | 2010-02-11 | Rational Ag | Dampferzeuger mit reduzierter Kalkablagerung |
CN101688694B (zh) * | 2007-07-05 | 2011-09-07 | Ib.Ntec公司 | 通过压力流体穿过多个管体的流动产生热的装置和使用该装置的热力系统 |
US7823544B2 (en) * | 2008-01-04 | 2010-11-02 | Ecr International, Inc. | Steam boiler |
US9103603B2 (en) * | 2009-10-28 | 2015-08-11 | Tai-Her Yang | Thermal conductive cylinder installed with U-type core piping and loop piping |
JP6088530B2 (ja) * | 2011-10-10 | 2017-03-01 | インテリホット グリーン テクノロジーズ,インコーポレイテッドIntellihot Green Technologies,Inc. | ガス−水管複合ハイブリッド型熱交換器 |
RU2506493C2 (ru) * | 2012-02-07 | 2014-02-10 | Федеральное государственное военное образовательное учреждение высшего профессионального образования Военная академия Ракетных войск стратегического назначения имени Петра Великого МО РФ | Способ генерации пара |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US608291A (en) * | 1898-08-02 | Water-heater | ||
BE630357A (de) * | 1962-01-30 | |||
US4178880A (en) * | 1976-11-11 | 1979-12-18 | Nils Ostbo | Furnace |
DE2807166A1 (de) * | 1978-02-20 | 1979-08-23 | Nils Oestbo | Dampf- oder heisswasserkessel |
IT235007Y1 (it) * | 1994-01-17 | 2000-03-31 | Zanussi Grandi Impianti Spa | Forno di cottura con generatore di vapore a bruciatore soffiato |
-
1997
- 1997-02-28 DE DE19708229A patent/DE19708229C2/de not_active Expired - Fee Related
- 1997-11-24 DK DK97120542T patent/DK0863365T3/da active
- 1997-11-24 AT AT97120542T patent/ATE226296T1/de not_active IP Right Cessation
- 1997-11-24 DE DE59708490T patent/DE59708490D1/de not_active Expired - Fee Related
- 1997-11-24 EP EP97120542A patent/EP0863365B1/de not_active Expired - Lifetime
-
1998
- 1998-02-23 JP JP04009298A patent/JP3527841B2/ja not_active Expired - Fee Related
- 1998-02-27 US US09/032,039 patent/US6076518A/en not_active Expired - Fee Related
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP3701797A1 (de) | 2019-02-26 | 2020-09-02 | Electrolux Professional S.p.A. | Ofen mit einem dampfgenerator |
Also Published As
Publication number | Publication date |
---|---|
DE19708229C2 (de) | 1999-01-21 |
EP0863365A2 (de) | 1998-09-09 |
EP0863365A3 (de) | 2000-08-02 |
DK0863365T3 (da) | 2003-02-17 |
ATE226296T1 (de) | 2002-11-15 |
JPH1182904A (ja) | 1999-03-26 |
US6076518A (en) | 2000-06-20 |
JP3527841B2 (ja) | 2004-05-17 |
DE59708490D1 (de) | 2002-11-21 |
DE19708229A1 (de) | 1998-09-10 |
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