EP0349834B1 - Durchlaufdampferzeuger - Google Patents

Durchlaufdampferzeuger Download PDF

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Publication number
EP0349834B1
EP0349834B1 EP89111309A EP89111309A EP0349834B1 EP 0349834 B1 EP0349834 B1 EP 0349834B1 EP 89111309 A EP89111309 A EP 89111309A EP 89111309 A EP89111309 A EP 89111309A EP 0349834 B1 EP0349834 B1 EP 0349834B1
Authority
EP
European Patent Office
Prior art keywords
steam generator
gas flue
height
once
gas
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
EP89111309A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0349834A1 (de
Inventor
Eberhard Dipl.-Ing. Wittchow
Wolfgang Dr. Köhler
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=25869735&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP0349834(B1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Siemens AG filed Critical Siemens AG
Publication of EP0349834A1 publication Critical patent/EP0349834A1/de
Application granted granted Critical
Publication of EP0349834B1 publication Critical patent/EP0349834B1/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
    • F22B29/061—Construction of tube walls
    • F22B29/065—Construction of tube walls involving upper vertically disposed water tubes and lower horizontally- or helically disposed water tubes
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S122/00—Liquid heaters and vaporizers
    • Y10S122/04—Once through boilers

Definitions

  • the invention relates to a once-through steam generator according to claim 1.
  • the transition from the tubes of the tube walls of the lower part of the throttle cable into the tubes of the tube walls of the upper part can either be done directly, for example by three tubes of the upper part on a tube of the lower Part are connected, or indirectly via a collector, to which both the pipes of the lower and the pipes of the upper part are connected.
  • the tubes of the lower part of the gas flue which are strongly heated by the burners of the once-through steam generator, can have very considerable temperature differences at their outlet points to the tubes of the upper part or to the collector due to inevitable heating differences. Since the pipes of the pipe walls are welded together gas-tight on their long sides, these temperature differences lead to considerable thermal stresses in the pipe walls of the gas train, which can lead to pipe breaks.
  • the invention has for its object to remedy this situation and to avoid such pipe tears due to excessive thermal stresses.
  • the tubes 16 of the tube walls of the upper part 10 of the throttle cable 2 advantageously have helical inner ribs 17. From the tubes 15 of the tube walls of the lower part 7 of the gas cable 2 into the tubes 16 according to FIGS. 5 and 6 flowing wet steam is subject to a centrifugal force in these tubes 16, so that its water content predominantly collects on the inside of the tubes 16. This proportion of water increases the cooling of the tubes 16 there, so that these pipes 16 can easily absorb the high heat radiation from the interior of the throttle cable 2, which they are subject to because of the low height H of the lower part 7 of this gas cable 2.
  • the tube walls of both parts 7 and 10 of the gas flue 2 belong to the evaporator surface 23 in FIG. 7, while the heating surfaces 9, the feed water preheater heating surface 22 and the superheater heating surfaces 25 in FIG. 7 are.
  • the evaporation area is not fixed locally, so that either overheating occurs in the evaporator surfaces 23 of the tube walls of the gas flue 2, or evaporation still takes place in the superheater heating surfaces 25.

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)
EP89111309A 1988-07-04 1989-06-21 Durchlaufdampferzeuger Expired - Lifetime EP0349834B1 (de)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE3822606 1988-07-04
DE3822606 1988-07-04
IN478CA1989 IN172355B (ja) 1988-07-04 1989-06-22

Publications (2)

Publication Number Publication Date
EP0349834A1 EP0349834A1 (de) 1990-01-10
EP0349834B1 true EP0349834B1 (de) 1996-04-17

Family

ID=25869735

Family Applications (1)

Application Number Title Priority Date Filing Date
EP89111309A Expired - Lifetime EP0349834B1 (de) 1988-07-04 1989-06-21 Durchlaufdampferzeuger

Country Status (5)

Country Link
US (1) US4987862A (ja)
EP (1) EP0349834B1 (ja)
JP (1) JP3014699B2 (ja)
GR (1) GR3019861T3 (ja)
IN (1) IN172355B (ja)

Families Citing this family (26)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0581760B2 (de) * 1991-04-18 2001-10-31 Siemens Aktiengesellschaft Durchlaufdampferzeuger mit einem vertikalen gaszug aus im wesentlichen vertikal angeordneten rohren
DE4206657C2 (de) * 1992-03-03 1997-01-09 Siemens Ag Anordnung eines Dampferzeugers in einer Tragkonstruktion
DE4232880A1 (de) * 1992-09-30 1994-03-31 Siemens Ag Dampferzeuger
DE4236835A1 (de) * 1992-11-02 1994-05-05 Siemens Ag Dampferzeuger
DE4333404A1 (de) * 1993-09-30 1995-04-06 Siemens Ag Durchlaufdampferzeuger mit vertikal angeordneten Verdampferrohren
US5390631A (en) * 1994-05-25 1995-02-21 The Babcock & Wilcox Company Use of single-lead and multi-lead ribbed tubing for sliding pressure once-through boilers
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
US5755188A (en) * 1995-05-04 1998-05-26 The Babcock & Wilcox Company Variable pressure once-through steam generator furnace having all welded spiral to vertical tube transition with non-split flow circuitry
DE19600004C2 (de) * 1996-01-02 1998-11-19 Siemens Ag Durchlaufdampferzeuger mit spiralförmig angeordneten Verdampferrohren
DE19602680C2 (de) * 1996-01-25 1998-04-02 Siemens Ag Durchlaufdampferzeuger
DE19645748C1 (de) * 1996-11-06 1998-03-12 Siemens Ag Verfahren zum Betreiben eines Durchlaufdampferzeugers und Durchlaufdampferzeuger zur Durchführung des Verfahrens
EP1086339B1 (de) * 1998-06-10 2001-12-12 Siemens Aktiengesellschaft Fossilbeheizter dampferzeuger
DE19858780C2 (de) * 1998-12-18 2001-07-05 Siemens Ag Fossilbeheizter Durchlaufdampferzeuger
US6213059B1 (en) * 1999-01-13 2001-04-10 Abb Combustion Engineering Inc. Technique for cooling furnace walls in a multi-component working fluid power generation system
DE19914760C1 (de) * 1999-03-31 2000-04-13 Siemens Ag Fossilbeheizter Durchlaufdampferzeuger
US20040069244A1 (en) * 2002-10-04 2004-04-15 Schroeder Joseph E. Once-through evaporator for a steam generator
US6718915B1 (en) * 2002-12-16 2004-04-13 The Babcock & Wilcox Company Horizontal spiral tube boiler convection pass enclosure design
EP1533565A1 (de) * 2003-11-19 2005-05-25 Siemens Aktiengesellschaft Durchlaufdampferzeuger
DE102005023082B4 (de) * 2005-05-13 2014-05-28 Alstom Technology Ltd. Durchlaufdampferzeuger
DE102006005208A1 (de) * 2006-02-02 2007-08-16 Hitachi Power Europe Gmbh Hängender Dampferzeuger
EP2194320A1 (de) * 2008-06-12 2010-06-09 Siemens Aktiengesellschaft Verfahren zum Betreiben eines Durchlaufdampferzeugers sowie Zwangdurchlaufdampferzeuger
DE102009012321A1 (de) * 2009-03-09 2010-09-16 Siemens Aktiengesellschaft Durchlaufverdampfer
DE102009024587A1 (de) * 2009-06-10 2010-12-16 Siemens Aktiengesellschaft Durchlaufverdampfer
US8240370B2 (en) * 2009-12-18 2012-08-14 Air Products And Chemicals, Inc. Integrated hydrogen production and hydrocarbon extraction
US9541280B2 (en) 2014-06-04 2017-01-10 Fives North American Combustion, Inc. Ultra low NOx combustion for steam generator
US10634341B2 (en) * 2016-08-23 2020-04-28 General Electric Technology Gmbh Overfire air system for low nitrogen oxide tangentially fired boiler

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3202138A (en) * 1961-07-27 1965-08-24 Combustion Eng Vapor temperature control method
NL130376C (ja) * 1963-03-25
DE1240883B (de) * 1964-02-27 1967-05-24 Ver Kesselwerke Ag Zwangdurchlaufkessel mit oben am Kesselgeruest aufgehaengtem Kesselkoerper
GB1163301A (en) * 1965-08-27 1969-09-04 Babcock & Wilcox Ltd Improvements in or relating to Supporting Tubular Walls of a Vapour Generator
GB1405752A (en) * 1971-08-05 1975-09-10 Babcock & Wilcox Ltd Tubulous vapour generating units
DE2621189C3 (de) * 1976-05-13 1980-02-21 Balcke-Duerr Ag, 4030 Ratingen Vorrichtung zur Aufhängung einer Rohrwand
US4191133A (en) * 1977-11-07 1980-03-04 Foster Wheeler Energy Corporation Vapor generating system utilizing integral separators and angularly arranged furnace boundary wall fluid flow tubes having rifled bores
US4344388A (en) * 1977-11-07 1982-08-17 Foster Wheeler Energy Corporation Vapor generating system utilizing integral separators and angularly arranged furnace boundary wall fluid flow tubes having rifled bores
DE2941623A1 (de) * 1979-10-13 1981-04-23 Deutsche Babcock Ag, 4200 Oberhausen Vorrichtung zur aufhaengung einer rohrwand
DE3173990D1 (en) * 1981-09-15 1986-04-10 Sulzer Ag Steam generator with a superheater tubular wall
CH666532A5 (de) * 1984-12-27 1988-07-29 Mustafa Youssef Dr Ing Brennkammer-rohranordnung in zwangdurchlauf-dampferzeugern.
DE3525676A1 (de) * 1985-07-18 1987-01-22 Kraftwerk Union Ag Dampferzeuger

Also Published As

Publication number Publication date
EP0349834A1 (de) 1990-01-10
JP3014699B2 (ja) 2000-02-28
GR3019861T3 (en) 1996-08-31
JPH0271001A (ja) 1990-03-09
IN172355B (ja) 1993-06-26
US4987862A (en) 1991-01-29

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