EP2213936A1 - Durchlaufdampferzeuger - Google Patents

Durchlaufdampferzeuger Download PDF

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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Withdrawn
Application number
EP08019643A
Other languages
German (de)
English (en)
French (fr)
Inventor
Martin Effert
Andreas Dr. Schneider
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Siemens AG
Original Assignee
Siemens AG
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 Siemens AG filed Critical Siemens AG
Priority to EP08019643A priority Critical patent/EP2213936A1/de
Priority to PL09748302T priority patent/PL2364414T3/pl
Priority to EP09748302.8A priority patent/EP2364414B1/de
Priority to AU2009312906A priority patent/AU2009312906B2/en
Priority to PCT/EP2009/064205 priority patent/WO2010052158A2/de
Priority to KR1020117013164A priority patent/KR101619561B1/ko
Priority to CA2743004A priority patent/CA2743004A1/en
Priority to DK09748302.8T priority patent/DK2364414T3/en
Priority to JP2011535075A priority patent/JP5355704B2/ja
Priority to CN200980148943.6A priority patent/CN102245966B/zh
Priority to MX2011004906A priority patent/MX2011004906A/es
Priority to BRPI0921214A priority patent/BRPI0921214A2/pt
Priority to RU2011123653/06A priority patent/RU2011123653A/ru
Priority to US13/127,340 priority patent/US8851023B2/en
Priority to TW098137709A priority patent/TWI512241B/zh
Publication of EP2213936A1 publication Critical patent/EP2213936A1/de
Withdrawn legal-status Critical Current

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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)
  • Control Of Steam Boilers And Waste-Gas Boilers (AREA)
  • Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
  • Combustion Of Fluid Fuel (AREA)
  • Gas Burners (AREA)
  • Fluidized-Bed Combustion And Resonant Combustion (AREA)
EP08019643A 2008-11-10 2008-11-10 Durchlaufdampferzeuger Withdrawn EP2213936A1 (de)

Priority Applications (15)

Application Number Priority Date Filing Date Title
EP08019643A EP2213936A1 (de) 2008-11-10 2008-11-10 Durchlaufdampferzeuger
PL09748302T PL2364414T3 (pl) 2008-11-10 2009-10-28 Ciągła wytwornica pary
EP09748302.8A EP2364414B1 (de) 2008-11-10 2009-10-28 Durchlaufdampferzeuger
AU2009312906A AU2009312906B2 (en) 2008-11-10 2009-10-28 Continuous steam generator
PCT/EP2009/064205 WO2010052158A2 (de) 2008-11-10 2009-10-28 Durchlaufdampferzeuger
KR1020117013164A KR101619561B1 (ko) 2008-11-10 2009-10-28 연속 흐름식 증기 발생기
CA2743004A CA2743004A1 (en) 2008-11-10 2009-10-28 Continuous steam generator
DK09748302.8T DK2364414T3 (en) 2008-11-10 2009-10-28 Continuous steam generator
JP2011535075A JP5355704B2 (ja) 2008-11-10 2009-10-28 貫流ボイラ
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.
BRPI0921214A BRPI0921214A2 (pt) 2008-11-10 2009-10-28 gerador de vapor contínuo
RU2011123653/06A RU2011123653A (ru) 2008-11-10 2009-10-28 Прямоточный паровой котел
US13/127,340 US8851023B2 (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 (de) 2008-11-10 2008-11-10 Durchlaufdampferzeuger

Publications (1)

Publication Number Publication Date
EP2213936A1 true EP2213936A1 (de) 2010-08-04

Family

ID=42153329

Family Applications (2)

Application Number Title Priority Date Filing Date
EP08019643A Withdrawn EP2213936A1 (de) 2008-11-10 2008-11-10 Durchlaufdampferzeuger
EP09748302.8A Active EP2364414B1 (de) 2008-11-10 2009-10-28 Durchlaufdampferzeuger

Family Applications After (1)

Application Number Title Priority Date Filing Date
EP09748302.8A Active EP2364414B1 (de) 2008-11-10 2009-10-28 Durchlaufdampferzeuger

Country Status (14)

Country Link
US (1) US8851023B2 (ko)
EP (2) EP2213936A1 (ko)
JP (1) JP5355704B2 (ko)
KR (1) KR101619561B1 (ko)
CN (1) CN102245966B (ko)
AU (1) AU2009312906B2 (ko)
BR (1) BRPI0921214A2 (ko)
CA (1) CA2743004A1 (ko)
DK (1) DK2364414T3 (ko)
MX (1) MX2011004906A (ko)
PL (1) PL2364414T3 (ko)
RU (1) RU2011123653A (ko)
TW (1) TWI512241B (ko)
WO (1) WO2010052158A2 (ko)

Cited By (1)

* Cited by examiner, † Cited by third party
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)

* Cited by examiner, † Cited by third party
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)

* Cited by examiner, † Cited by third party
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 (en) * 2002-09-09 2005-06-22 Babcock-Hitachi Kabushiki Kaisha Furnace wall structure
EP1607680A1 (en) * 2004-06-17 2005-12-21 General Electric Company Furnace with injection of overfire air

Family Cites Families (9)

* Cited by examiner, † Cited by third party
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 (ko) * 1965-12-01
CN1112536C (zh) 1997-05-09 2003-06-25 西门子公司 双烟道结构型式的直流式锅炉
JP2000028106A (ja) 1998-07-07 2000-01-25 Mitsubishi Heavy Ind Ltd 水平煙道部
WO2006032556A1 (de) * 2004-09-23 2006-03-30 Siemens Aktiengesellschaft Fossil beheizter durchlaufdampferzeuger
JP2006317023A (ja) 2005-05-10 2006-11-24 Ishikawajima Harima Heavy Ind Co Ltd 管整列装置
EP2180251A1 (de) * 2008-09-09 2010-04-28 Siemens Aktiengesellschaft Durchlaufdampferzeuger
EP2180250A1 (de) * 2008-09-09 2010-04-28 Siemens Aktiengesellschaft Durchlaufdampferzeuger

Patent Citations (6)

* Cited by examiner, † Cited by third party
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 (en) * 2002-09-09 2005-06-22 Babcock-Hitachi Kabushiki Kaisha Furnace wall structure
EP1607680A1 (en) * 2004-06-17 2005-12-21 General Electric Company Furnace with injection of overfire air

Cited By (2)

* Cited by examiner, † Cited by third party
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
EP2364414A2 (de) 2011-09-14
MX2011004906A (es) 2011-06-16
BRPI0921214A2 (pt) 2016-02-23
TW201030286A (en) 2010-08-16
CN102245966A (zh) 2011-11-16
EP2364414B1 (de) 2016-01-06
US20110214622A1 (en) 2011-09-08
AU2009312906B2 (en) 2014-03-20
CA2743004A1 (en) 2010-05-14
TWI512241B (zh) 2015-12-11
RU2011123653A (ru) 2012-12-20
WO2010052158A2 (de) 2010-05-14
WO2010052158A3 (de) 2010-08-19
JP5355704B2 (ja) 2013-11-27
KR101619561B1 (ko) 2016-05-10
JP2012508362A (ja) 2012-04-05
PL2364414T3 (pl) 2016-06-30
AU2009312906A1 (en) 2010-05-14
KR20110094042A (ko) 2011-08-19
DK2364414T3 (en) 2016-03-21
US8851023B2 (en) 2014-10-07
CN102245966B (zh) 2014-05-07

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