EP0349834B1 - Durchlaufdampferzeuger - Google Patents
Durchlaufdampferzeuger Download PDFInfo
- 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
Links
Images
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)
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE3822606 | 1988-07-04 | ||
DE3822606 | 1988-07-04 | ||
IN478CA1989 IN172355B (it) | 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 (it) |
EP (1) | EP0349834B1 (it) |
JP (1) | JP3014699B2 (it) |
GR (1) | GR3019861T3 (it) |
IN (1) | IN172355B (it) |
Families Citing this family (26)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
ATE117420T1 (de) * | 1991-04-18 | 1995-02-15 | Siemens Ag | 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 |
RU2208739C2 (ru) * | 1998-06-10 | 2003-07-20 | Сименс Акциенгезелльшафт | Прямоточный парогенератор, работающий на ископаемом топливе |
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 |
MXPA05003380A (es) * | 2002-10-04 | 2005-06-22 | Nooter Eriksen Inc | Evaporador de proceso directo para generador de vapor. |
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)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3202138A (en) * | 1961-07-27 | 1965-08-24 | Combustion Eng | Vapor temperature control method |
NL130376C (it) * | 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 |
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 |
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 |
DE2941623A1 (de) * | 1979-10-13 | 1981-04-23 | Deutsche Babcock Ag, 4200 Oberhausen | Vorrichtung zur aufhaengung einer rohrwand |
EP0075041B1 (de) * | 1981-09-15 | 1986-03-05 | GebràDer Sulzer Aktiengesellschaft | Dampferzeuger mit Überhitzerrohrwand |
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 |
-
1989
- 1989-06-21 EP EP89111309A patent/EP0349834B1/de not_active Expired - Lifetime
- 1989-06-22 IN IN478CA1989 patent/IN172355B/en unknown
- 1989-06-28 US US07/373,081 patent/US4987862A/en not_active Expired - Lifetime
- 1989-06-29 JP JP01168262A patent/JP3014699B2/ja not_active Expired - Lifetime
-
1996
- 1996-05-07 GR GR960401247T patent/GR3019861T3/el unknown
Also Published As
Publication number | Publication date |
---|---|
JP3014699B2 (ja) | 2000-02-28 |
US4987862A (en) | 1991-01-29 |
JPH0271001A (ja) | 1990-03-09 |
EP0349834A1 (de) | 1990-01-10 |
GR3019861T3 (en) | 1996-08-31 |
IN172355B (it) | 1993-06-26 |
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