EP2213936A1 - Générateur de vapeur en continu - Google Patents
Générateur de vapeur en continu Download PDFInfo
- Publication number
- EP2213936A1 EP2213936A1 EP08019643A EP08019643A EP2213936A1 EP 2213936 A1 EP2213936 A1 EP 2213936A1 EP 08019643 A EP08019643 A EP 08019643A EP 08019643 A EP08019643 A EP 08019643A EP 2213936 A1 EP2213936 A1 EP 2213936A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- steam generator
- tubes
- nose
- combustion chamber
- downstream
- 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.)
- Withdrawn
Links
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F22—STEAM GENERATION
- F22B—METHODS OF STEAM GENERATION; STEAM BOILERS
- F22B21/00—Water-tube boilers of vertical or steeply-inclined type, i.e. the water-tube sets being arranged vertically or substantially vertically
- F22B21/34—Water-tube boilers of vertical or steeply-inclined type, i.e. the water-tube sets being arranged vertically or substantially vertically built-up from water tubes grouped in panel form surrounding the combustion chamber, i.e. radiation boilers
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F22—STEAM GENERATION
- F22B—METHODS OF STEAM GENERATION; STEAM BOILERS
- F22B21/00—Water-tube boilers of vertical or steeply-inclined type, i.e. the water-tube sets being arranged vertically or substantially vertically
- F22B21/34—Water-tube boilers of vertical or steeply-inclined type, i.e. the water-tube sets being arranged vertically or substantially vertically built-up from water tubes grouped in panel form surrounding the combustion chamber, i.e. radiation boilers
- F22B21/341—Vertical radiation boilers with combustion in the lower part
- F22B21/343—Vertical radiation boilers with combustion in the lower part the vertical radiation combustion chamber being connected at its upper part to a sidewards convection chamber
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F22—STEAM GENERATION
- F22B—METHODS OF STEAM GENERATION; STEAM BOILERS
- F22B29/00—Steam boilers of forced-flow type
- F22B29/06—Steam boilers of forced-flow type of once-through type, i.e. built-up from tubes receiving water at one end and delivering superheated steam at the other end of the tubes
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F22—STEAM GENERATION
- F22B—METHODS OF STEAM GENERATION; STEAM BOILERS
- F22B29/00—Steam boilers of forced-flow type
- F22B29/06—Steam boilers of forced-flow type of once-through type, i.e. built-up from tubes receiving water at one end and delivering superheated steam at the other end of the tubes
- F22B29/061—Construction of tube walls
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F22—STEAM GENERATION
- F22B—METHODS OF STEAM GENERATION; STEAM BOILERS
- F22B37/00—Component parts or details of steam boilers
- F22B37/62—Component parts or details of steam boilers specially adapted for steam boilers of forced-flow type
Definitions
- Fossil fueled steam generators can be categorized by a variety of criteria: Steam generators may generally be designed as natural, forced circulation or continuous flow steam generators. In a continuous steam generator, the heating of a number of evaporator tubes leads to a complete Evaporation of the flow medium in the evaporator tubes in one go.
- the flow medium - usually water - is supplied to the evaporator tubes downstream superheater tubes after its evaporation and overheated there. This description is strictly valid only for partial loads with subcritical pressure of water (P Kri ⁇ 221 bar) in the evaporator. For the sake of clarity, however, this illustration will be used throughout the following description.
- such a continuous steam generator is usually operated with a minimum flow of flow medium in the evaporator tubes in order to ensure reliable cooling of the evaporator tubes.
- the pure mass flow through the evaporator usually no longer suffices for cooling the evaporator tubes, so that an additional throughput of flow medium is superimposed on the passage of flow medium through the evaporator in circulation.
- the operationally provided minimum flow of flow medium in the evaporator tubes is thus not completely evaporated during startup or during low load operation in the evaporator tubes, so that in such a mode at the end of the evaporator tubes still unvaporized flow medium, in particular a water-steam mixture is present.
- Such Zweugugkessel often include a so-called combustion chamber nose.
- This nose is a projection which is formed from the combustion chamber wall inclined inwardly at the transition to the horizontal gas flue and the bottom of the horizontal flue.
- Such a combustion chamber nose improves the flow of the flue gas at the transition to the horizontal gas flue.
- Another possibility is to divide the tubes of the combustion chamber rear wall at the bottom of the nose flow medium side, so that a part of the tubes is guided in the tube of the nose, another part parallel to it vertically to the boiler frame. But this is only a part of the tubes and the flow medium for the nose available, which can sometimes lead to insufficient cooling of the nose, as this has a relatively high heat input by their exposed position in the combustion chamber. In contrast, the heat input for the removed, vertically upwardly guided support tubes is correspondingly lower, which can cause problems in terms of the distribution of the mass flow. All wall pipes above the nose and the support tubes should have the same possible steam temperatures at the outlet. Furthermore, a complex transition into the nose tube z. B. by changing the pipe pitch or other tube geometry required.
- This object is achieved by at least part of the steam generator tubes of the nose at the upper end of a number of support tubes downstream of the flow medium side, which are guided substantially vertically to the lower end of the nose.
- This collector can then collect the branched off for the support tubes flow medium and continue to provide the system via an appropriate forwarding available.
- the branched off for the support tubes medium flow to the other steam generator tubes of the upper portion of the combustion chamber is connected in parallel and fed back to the system.
- a full use of the medium flow of the support tubes is possible.
- the continuous steam generator 1 according to the FIG. 1 comprises a trained as a vertical gas flue combustion chamber 2, which is connected downstream of a horizontal region 4 in an upper region 4. At the horizontal gas train 6, another vertical gas train 8 connects.
- the trains of the steam generator 1 are arranged suspended in a frame 18, so that the trains of the steam generator 1 can expand unhindered when heated down. So that the walls of the combustion chamber 2 of the steam generator 1 are as uniform as possible, all surrounding walls 12 of the combustion chamber 2 should have approximately the same temperature, so that a uniform heating and expansion takes place. This is easiest to accomplish by the entire support structure consists of steam generator tubes.
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
- Control Of Steam Boilers And Waste-Gas Boilers (AREA)
- Gas Burners (AREA)
- Combustion Of Fluid Fuel (AREA)
- Fluidized-Bed Combustion And Resonant Combustion (AREA)
Priority Applications (15)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP08019643A EP2213936A1 (fr) | 2008-11-10 | 2008-11-10 | Générateur de vapeur en continu |
KR1020117013164A KR101619561B1 (ko) | 2008-11-10 | 2009-10-28 | 연속 흐름식 증기 발생기 |
PL09748302T PL2364414T3 (pl) | 2008-11-10 | 2009-10-28 | Ciągła wytwornica pary |
JP2011535075A JP5355704B2 (ja) | 2008-11-10 | 2009-10-28 | 貫流ボイラ |
CA2743004A CA2743004A1 (fr) | 2008-11-10 | 2009-10-28 | Generateur de vapeur en continu |
EP09748302.8A EP2364414B1 (fr) | 2008-11-10 | 2009-10-28 | Générateur de vapeur en continu |
BRPI0921214A BRPI0921214A2 (pt) | 2008-11-10 | 2009-10-28 | gerador de vapor contínuo |
PCT/EP2009/064205 WO2010052158A2 (fr) | 2008-11-10 | 2009-10-28 | Générateur de vapeur en continu |
AU2009312906A AU2009312906B2 (en) | 2008-11-10 | 2009-10-28 | Continuous steam generator |
CN200980148943.6A CN102245966B (zh) | 2008-11-10 | 2009-10-28 | 直流式锅炉 |
MX2011004906A MX2011004906A (es) | 2008-11-10 | 2009-10-28 | Generador de vapor continuo. |
US13/127,340 US8851023B2 (en) | 2008-11-10 | 2009-10-28 | Continuous steam generator |
RU2011123653/06A RU2011123653A (ru) | 2008-11-10 | 2009-10-28 | Прямоточный паровой котел |
DK09748302.8T DK2364414T3 (en) | 2008-11-10 | 2009-10-28 | Continuous steam generator |
TW098137709A TWI512241B (zh) | 2008-11-10 | 2009-11-06 | 貫流式蒸氣產生器 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP08019643A EP2213936A1 (fr) | 2008-11-10 | 2008-11-10 | Générateur de vapeur en continu |
Publications (1)
Publication Number | Publication Date |
---|---|
EP2213936A1 true EP2213936A1 (fr) | 2010-08-04 |
Family
ID=42153329
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP08019643A Withdrawn EP2213936A1 (fr) | 2008-11-10 | 2008-11-10 | Générateur de vapeur en continu |
EP09748302.8A Active EP2364414B1 (fr) | 2008-11-10 | 2009-10-28 | Générateur de vapeur en continu |
Family Applications After (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP09748302.8A Active EP2364414B1 (fr) | 2008-11-10 | 2009-10-28 | Générateur de vapeur en continu |
Country Status (14)
Country | Link |
---|---|
US (1) | US8851023B2 (fr) |
EP (2) | EP2213936A1 (fr) |
JP (1) | JP5355704B2 (fr) |
KR (1) | KR101619561B1 (fr) |
CN (1) | CN102245966B (fr) |
AU (1) | AU2009312906B2 (fr) |
BR (1) | BRPI0921214A2 (fr) |
CA (1) | CA2743004A1 (fr) |
DK (1) | DK2364414T3 (fr) |
MX (1) | MX2011004906A (fr) |
PL (1) | PL2364414T3 (fr) |
RU (1) | RU2011123653A (fr) |
TW (1) | TWI512241B (fr) |
WO (1) | WO2010052158A2 (fr) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102013215457A1 (de) * | 2013-08-06 | 2015-02-12 | Siemens Aktiengesellschaft | Durchlaufdampferzeuger in Zweizugkesselbauweise |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102010061186B4 (de) * | 2010-12-13 | 2014-07-03 | Alstom Technology Ltd. | Zwangdurchlaufdampferzeuger mit Wandheizfläche und Verfahren zu dessen Betrieb |
Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1244803B (de) * | 1965-07-28 | 1967-07-20 | Steinmueller Gmbh L & C | In den Strahlungsraum eines Dampferzeugers hineinragender Rueckwandvorsprung |
GB1244128A (en) * | 1968-07-01 | 1971-08-25 | Siemens Ag | A once-through steam boiler |
DE2557427A1 (de) * | 1975-12-19 | 1977-06-30 | Kraftwerk Union Ag | Schaltung einer feuerraumnase bei einem durchlaufkessel mit gasdicht verschweissten waenden in zweizugbauweise |
US4864973A (en) * | 1985-01-04 | 1989-09-12 | The Babcock & Wilcox Company | Spiral to vertical furnace tube transition |
EP1544540A1 (fr) * | 2002-09-09 | 2005-06-22 | Babcock-Hitachi Kabushiki Kaisha | Structure de la paroi d'un four |
EP1607680A1 (fr) * | 2004-06-17 | 2005-12-21 | General Electric Company | Chambre de combustion avec injection d'air additionnel |
Family Cites Families (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3095699A (en) * | 1958-12-18 | 1963-07-02 | Babcock & Wilcox Co | Combined gas-steam turbine power plant and method of operating the same |
US3320934A (en) * | 1965-04-05 | 1967-05-23 | Babcock & Wilcox Co | Vapor generator |
NL132447C (fr) * | 1965-12-01 | |||
KR100444497B1 (ko) * | 1997-05-09 | 2004-08-16 | 지멘스 악티엔게젤샤프트 | 연속 증기 발생기 |
JP2000028106A (ja) * | 1998-07-07 | 2000-01-25 | Mitsubishi Heavy Ind Ltd | 水平煙道部 |
US7878157B2 (en) | 2004-09-23 | 2011-02-01 | Siemens Aktiengesellschaft | Fossil-fuel heated continuous steam generator |
JP2006317023A (ja) * | 2005-05-10 | 2006-11-24 | Ishikawajima Harima Heavy Ind Co Ltd | 管整列装置 |
EP2180250A1 (fr) * | 2008-09-09 | 2010-04-28 | Siemens Aktiengesellschaft | Générateur de vapeur en continu |
EP2180251A1 (fr) * | 2008-09-09 | 2010-04-28 | Siemens Aktiengesellschaft | Générateur de vapeur en continu |
-
2008
- 2008-11-10 EP EP08019643A patent/EP2213936A1/fr not_active Withdrawn
-
2009
- 2009-10-28 BR BRPI0921214A patent/BRPI0921214A2/pt not_active Application Discontinuation
- 2009-10-28 MX MX2011004906A patent/MX2011004906A/es not_active Application Discontinuation
- 2009-10-28 AU AU2009312906A patent/AU2009312906B2/en not_active Ceased
- 2009-10-28 DK DK09748302.8T patent/DK2364414T3/en active
- 2009-10-28 JP JP2011535075A patent/JP5355704B2/ja not_active Expired - Fee Related
- 2009-10-28 KR KR1020117013164A patent/KR101619561B1/ko active IP Right Grant
- 2009-10-28 WO PCT/EP2009/064205 patent/WO2010052158A2/fr active Application Filing
- 2009-10-28 CA CA2743004A patent/CA2743004A1/fr not_active Abandoned
- 2009-10-28 US US13/127,340 patent/US8851023B2/en active Active
- 2009-10-28 CN CN200980148943.6A patent/CN102245966B/zh active Active
- 2009-10-28 PL PL09748302T patent/PL2364414T3/pl unknown
- 2009-10-28 EP EP09748302.8A patent/EP2364414B1/fr active Active
- 2009-10-28 RU RU2011123653/06A patent/RU2011123653A/ru unknown
- 2009-11-06 TW TW098137709A patent/TWI512241B/zh not_active IP Right Cessation
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1244803B (de) * | 1965-07-28 | 1967-07-20 | Steinmueller Gmbh L & C | In den Strahlungsraum eines Dampferzeugers hineinragender Rueckwandvorsprung |
GB1244128A (en) * | 1968-07-01 | 1971-08-25 | Siemens Ag | A once-through steam boiler |
DE2557427A1 (de) * | 1975-12-19 | 1977-06-30 | Kraftwerk Union Ag | Schaltung einer feuerraumnase bei einem durchlaufkessel mit gasdicht verschweissten waenden in zweizugbauweise |
US4864973A (en) * | 1985-01-04 | 1989-09-12 | The Babcock & Wilcox Company | Spiral to vertical furnace tube transition |
EP1544540A1 (fr) * | 2002-09-09 | 2005-06-22 | Babcock-Hitachi Kabushiki Kaisha | Structure de la paroi d'un four |
EP1607680A1 (fr) * | 2004-06-17 | 2005-12-21 | General Electric Company | Chambre de combustion avec injection d'air additionnel |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102013215457A1 (de) * | 2013-08-06 | 2015-02-12 | Siemens Aktiengesellschaft | Durchlaufdampferzeuger in Zweizugkesselbauweise |
US9671105B2 (en) | 2013-08-06 | 2017-06-06 | Siemens Aktiengesellschaft | Continuous flow steam generator with a two-pass boiler design |
Also Published As
Publication number | Publication date |
---|---|
CA2743004A1 (fr) | 2010-05-14 |
PL2364414T3 (pl) | 2016-06-30 |
TW201030286A (en) | 2010-08-16 |
US20110214622A1 (en) | 2011-09-08 |
KR20110094042A (ko) | 2011-08-19 |
WO2010052158A2 (fr) | 2010-05-14 |
CN102245966B (zh) | 2014-05-07 |
CN102245966A (zh) | 2011-11-16 |
KR101619561B1 (ko) | 2016-05-10 |
TWI512241B (zh) | 2015-12-11 |
JP5355704B2 (ja) | 2013-11-27 |
US8851023B2 (en) | 2014-10-07 |
DK2364414T3 (en) | 2016-03-21 |
WO2010052158A3 (fr) | 2010-08-19 |
JP2012508362A (ja) | 2012-04-05 |
AU2009312906A1 (en) | 2010-05-14 |
AU2009312906B2 (en) | 2014-03-20 |
MX2011004906A (es) | 2011-06-16 |
RU2011123653A (ru) | 2012-12-20 |
EP2364414A2 (fr) | 2011-09-14 |
EP2364414B1 (fr) | 2016-01-06 |
BRPI0921214A2 (pt) | 2016-02-23 |
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Legal Events
Date | Code | Title | Description |
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PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
Free format text: ORIGINAL CODE: 0009012 |
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AK | Designated contracting states |
Kind code of ref document: A1 Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MT NL NO PL PT RO SE SI SK TR |
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AX | Request for extension of the european patent |
Extension state: AL BA MK RS |
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AKY | No designation fees paid | ||
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN |
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18D | Application deemed to be withdrawn |
Effective date: 20110205 |