EP0980496B1 - Durchlaufdampferzeuger in zweizugbauart - Google Patents

Durchlaufdampferzeuger in zweizugbauart Download PDF

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Publication number
EP0980496B1
EP0980496B1 EP98932012A EP98932012A EP0980496B1 EP 0980496 B1 EP0980496 B1 EP 0980496B1 EP 98932012 A EP98932012 A EP 98932012A EP 98932012 A EP98932012 A EP 98932012A EP 0980496 B1 EP0980496 B1 EP 0980496B1
Authority
EP
European Patent Office
Prior art keywords
steam generator
combustion chamber
rear wall
tube
tubes
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
Application number
EP98932012A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0980496A1 (de
Inventor
Eberhard Wittchow
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
Publication of EP0980496A1 publication Critical patent/EP0980496A1/de
Application granted granted Critical
Publication of EP0980496B1 publication Critical patent/EP0980496B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • 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
    • F22B29/062—Construction of tube walls involving vertically-disposed water tubes

Definitions

  • the invention relates to a continuous steam generator in two-pass design with a combustion chamber rear wall of the first vertical train, those in an upper section towards the combustion chamber is inclined inward and thereby with the floor of the adjacent Horizontal gas flue one protruding into the combustion chamber "Nose" forms.
  • a nose in the upper part of the combustion chamber rear wall one serves at the transition to the horizontal throttle cable Improvement of the flue gas flow.
  • a continuous steam generator in two-pass design with one "Nose” is shown in Figure 1 of US-A-3 174 464.
  • the essential construction elements the suspension of the combustion chamber rear wall from the flow medium flowed through steam generator tubes, to which one Double function is incumbent.
  • the support tubes are one Part of the flow medium flows through, which in Flow direction beyond the supporting structure again Main stream of the flow medium is supplied.
  • the support tubes evenly across the width of the combustion chamber rear wall distributed.
  • the support tubes evenly across the width of the combustion chamber rear wall distributed.
  • the continuous steam generator according to the invention is one such in two-pass design. This means that 1 to 3 of the heating gases, a first vertical gas flue 4 with ascending heating gas flow, a horizontal throttle cable 5 and a second vertical throttle cable 6 with descending hot gas flow are arranged in a row.
  • Such a steam generator in two-pass design essentially has the advantage lower Height.
  • the constructive design is of primary interest and suspension of the rear wall 7 of the combustion chamber 8 of the first vertical throttle cable 4.
  • This rear wall 7 is through an evaporator heating surface is formed, which essentially from ascending next to each other and to form the perimeter wall gas-tight interconnected as well as for the Flow through a flow medium connected in parallel Steam generator tubes 9 exists.
  • These pipes are in the drawings shown including open spaces, in practice but not shown here Way sealed gas-tight. You thereby form for the individual throttle cables an impermeable surrounding wall.
  • the Combustion chamber rear wall 7 is the second vertical gas flue 6 facing wall of the first vertical throttle cable 4 and aligned substantially vertically. Fossil fuel is fed to the combustion chamber 8 from the outside by a burner 10. When it burns, it creates throttle cables 4 to 6 fuel gas flowing through.
  • the steam generator tubes 9 of substantially the same training and more vertical Alignment with even parallel distances from each other.
  • some differ - in the drawings additionally marked with C - steam generator tubes 9 of the remaining steam generator tubes marked with A. in that with the further function as support tubes C the combustion chamber rear wall 7 not inclined up to one outlet header 15 located outside the heating gas duct are guided and lead there into these.
  • This exit collector 15 is part of a supporting structure 24, which in its constructive Design not closer but only in terms of positioning yours at an incline in the area outside of the heating gas duct upwards leading steam generator pipe 9C is shown with reference number 24.
  • the outlet header 15 is located above the boiler ceiling 23.
  • the tubes of the nose 13 go into the tubes of the floor 12 of the horizontal throttle cable 5 and also open in a collector. Both pipe groups are on the water and steam side flows in parallel.
  • the steam generator tubes 9 of the lower portion 14 of the Combustion chamber rear wall 7 are facing away from the combustion chamber 8 Page below the inclined portion 11 through an approximately horizontal compensating collector 16 in terms of flow connected with each other.
  • the inclined portion 11 of the combustion chamber rear wall 7 leading steam generator tubes 9A are below their bends 17 through an inlet pipe 18 and above Outlet pipe 19 fluidly connected to the collector 16. They open into the apex area 20 of the collector 16 an (inlet pipe 18) or are derived from the apex region 20 (Outlet pipe 19). Located in the steam generator tube 9A between the inlet pipe 18 and the outlet pipe 19 a cutting disc 25 so that the entire flow medium from the lower section 14 of the steam generator tube 9A in flows the collector 16.
  • the steam generator tubes used according to the invention as support tubes 9C 9 are only through approximately the equatorial area of the clear cross section of the compensation collector 16 horizontally confluent pressure compensation tubes 21 spatially with the collector 16 connected.
  • the main flow of the flow medium flows directly from a steam generator tube 9 in the lower section into the support tube 9C.
  • the support tubes 9C outlet tubes 22 with the same cross section assigned to the other pipes, which are inclined in a straight line in the upper section 11 of the combustion chamber rear wall 7 are introduced and there next to the other steam generator pipes 9A in the same way the function of a steam generator tube take.
  • the inclined outlet pipes 22 are on passed the associated support tubes 9C in a bend, so that they are the same in the inclined upper portion 11 Distance position as in the lower portion 14 the Take support tubes 9C as steam generator tubes.
  • Another embodiment, not shown here, is dispensed with on the upper outlet pipes 22 than in the inclined upper Subarea 11 additionally effective steam generator tubes. It are then in the upper inclined section 11 as steam generator tubes only those from the lower section 14 on the turns 17 inclined steam generator tubes 9A available.

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
  • Control Of Steam Boilers And Waste-Gas Boilers (AREA)
  • Fluidized-Bed Combustion And Resonant Combustion (AREA)
  • Combustion Of Fluid Fuel (AREA)
EP98932012A 1997-05-09 1998-04-27 Durchlaufdampferzeuger in zweizugbauart Expired - Lifetime EP0980496B1 (de)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE19719724 1997-05-09
DE19719724 1997-05-09
PCT/DE1998/001167 WO1998051964A1 (de) 1997-05-09 1998-04-27 Durchlaufdampferzeuger in zweizugbauart

Publications (2)

Publication Number Publication Date
EP0980496A1 EP0980496A1 (de) 2000-02-23
EP0980496B1 true EP0980496B1 (de) 2002-06-26

Family

ID=7829159

Family Applications (1)

Application Number Title Priority Date Filing Date
EP98932012A Expired - Lifetime EP0980496B1 (de) 1997-05-09 1998-04-27 Durchlaufdampferzeuger in zweizugbauart

Country Status (10)

Country Link
US (1) US6651596B1 (ja)
EP (1) EP0980496B1 (ja)
JP (1) JP3899132B2 (ja)
KR (1) KR100444497B1 (ja)
CN (1) CN1112536C (ja)
CA (1) CA2288676C (ja)
DE (1) DE59804591D1 (ja)
DK (1) DK0980496T3 (ja)
ES (1) ES2179516T3 (ja)
WO (1) WO1998051964A1 (ja)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1277067C (zh) 2002-09-09 2006-09-27 巴布考克日立株式会社 炉壁结构
FI20022099A (fi) * 2002-11-26 2004-05-27 Foster Wheeler Energia Oy Tornikattila
EP2213936A1 (de) 2008-11-10 2010-08-04 Siemens Aktiengesellschaft Durchlaufdampferzeuger
FI124375B (fi) 2009-04-09 2014-07-31 Foster Wheeler Energia Oy Lämpövoimakattilalaitos
DE102013215457A1 (de) 2013-08-06 2015-02-12 Siemens Aktiengesellschaft Durchlaufdampferzeuger in Zweizugkesselbauweise
CN105402748A (zh) * 2015-12-28 2016-03-16 高洪福 燃煤锅炉炉膛出口烟气导向装置
CN106195993B (zh) * 2016-07-11 2018-09-07 华中科技大学 一种塔式锅炉出口导流方法、机构及锅炉
CN106152102A (zh) * 2016-07-11 2016-11-23 华中科技大学 一种可降低烟温偏差的塔式锅炉

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2252061A (en) * 1938-09-02 1941-08-12 Babcock & Wilcox Co Fluid heater
US3174464A (en) * 1963-05-22 1965-03-23 Babcock & Wilcox Co Vapor generating apparatus
GB1101311A (en) * 1963-08-09 1968-01-31 Babcock & Wilcox Ltd Improvements in forced flow tubulous vapour generators
US3927646A (en) * 1965-04-13 1975-12-23 Babcock & Wilcox Co Vapor generator
NL132447C (ja) 1965-12-01
EP0073851B2 (de) * 1981-09-09 1988-12-07 GebràœDer Sulzer Aktiengesellschaft Dampferzeuger mit zwei Vertikalzügen und diese verbindendem Querzug
US5501181A (en) * 1994-09-08 1996-03-26 The Babcock & Wilcox Company Spiral furnace support tube strap
US5901669A (en) * 1995-04-05 1999-05-11 The Babcock & Wilcox Company Variable pressure once-through steam generator upper furnace having non-split flow circuitry

Also Published As

Publication number Publication date
WO1998051964A1 (de) 1998-11-19
DK0980496T3 (da) 2002-10-14
CN1112536C (zh) 2003-06-25
ES2179516T3 (es) 2003-01-16
EP0980496A1 (de) 2000-02-23
CA2288676C (en) 2007-02-13
KR20010012356A (ko) 2001-02-15
JP3899132B2 (ja) 2007-03-28
CN1254408A (zh) 2000-05-24
CA2288676A1 (en) 1998-11-19
KR100444497B1 (ko) 2004-08-16
DE59804591D1 (de) 2002-08-01
US6651596B1 (en) 2003-11-25
JP2001525050A (ja) 2001-12-04

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