EP1533565A1 - Durchlaufdampferzeuger - Google Patents

Durchlaufdampferzeuger Download PDF

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Publication number
EP1533565A1
EP1533565A1 EP03026647A EP03026647A EP1533565A1 EP 1533565 A1 EP1533565 A1 EP 1533565A1 EP 03026647 A EP03026647 A EP 03026647A EP 03026647 A EP03026647 A EP 03026647A EP 1533565 A1 EP1533565 A1 EP 1533565A1
Authority
EP
European Patent Office
Prior art keywords
steam generator
side walls
tubes
area
generator 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.)
Withdrawn
Application number
EP03026647A
Other languages
German (de)
English (en)
French (fr)
Inventor
Rudolf Kral
Andre Schrief
Frank Thomas
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 EP03026647A priority Critical patent/EP1533565A1/de
Priority to CA002546375A priority patent/CA2546375A1/en
Priority to EP04790884A priority patent/EP1695007A1/de
Priority to KR1020067012140A priority patent/KR101177143B1/ko
Priority to JP2006540218A priority patent/JP4463825B2/ja
Priority to BRPI0416776-7A priority patent/BRPI0416776A/pt
Priority to PCT/EP2004/012102 priority patent/WO2005050089A1/de
Priority to CN2004800403238A priority patent/CN1902438B/zh
Priority to AU2004291619A priority patent/AU2004291619B2/en
Priority to RU2006121455/06A priority patent/RU2382938C2/ru
Priority to US10/579,997 priority patent/US7516719B2/en
Priority to TW093133474A priority patent/TWI341914B/zh
Priority to MYPI20044750A priority patent/MY140359A/en
Priority to ARP040104275A priority patent/AR047127A1/es
Publication of EP1533565A1 publication Critical patent/EP1533565A1/de
Priority to ZA200603389A priority patent/ZA200603389B/en
Withdrawn legal-status Critical Current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
    • F22B37/00—Component parts or details of steam boilers
    • F22B37/02—Component parts or details of steam boilers applicable to more than one kind or type of steam boiler
    • F22B37/10—Water tubes; Accessories therefor
    • F22B37/14—Supply mains, e.g. rising mains, down-comers, in connection with water tubes
    • F22B37/146—Tube arrangements for ash hoppers and grates and for combustion chambers of the cyclone or similar type out of the flues
    • 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
    • F22B37/02—Component parts or details of steam boilers applicable to more than one kind or type of steam boiler
    • F22B37/10—Water tubes; Accessories therefor
    • F22B37/14—Supply mains, e.g. rising mains, down-comers, in connection with water tubes

Definitions

  • the invention relates to a steam generator with a combustion chamber, which has funnel side walls in its bottom area, and with a gas-tight welded together Steam generator tubes formed Um Permanentswand.
  • a steam generator can according to different design principles be designed.
  • a continuous steam generator leads the Heating a number of steam generator pipes together form the gas-tight enclosure wall of the combustion chamber, to a complete evaporation of a flow medium in the Steam generator tubes in one pass.
  • the steam generator tubes usually connected by fins.
  • the Surrounding wall is thus of a number of approximately parallel Steam generator tubes formed by fins with each other connected and welded gas-tight.
  • the steam generator pipes the steam generator can be vertical or be arranged spirally and thus inclined.
  • the combustion chamber wall is off usually formed vertical steam generator pipes and fins.
  • the steam generator tubes In the lower section run in the area of the funnel the steam generator tubes usually also in the art a vertical bore in the same direction as in her the combustion chamber wall forming upper section.
  • the parallel tubes enter the funnels via entry collectors and form in the course of the parallel tubes of the Combustion chamber.
  • a continuous steam generator During operation of a continuous steam generator is the in the combustion of a fuel gas within the combustion chamber generated heat both directly over the walls of the steam generator tubes as well as the fins in the steam generator tubes entered flowing through flow medium.
  • the heating of each steam generator tube determines the weight the water column in the respective tube. Because of the flow Flow medium through a steam generator tube and thus the Outlet temperature of the flow medium of the pressure of Water column in the corresponding pipe depends on the outlet temperature crucial by a steam generator tube the heating of the corresponding steam generator tube influenced.
  • the invention is therefore based on the object, a steam generator of the type mentioned above, in which in each Operating condition is ensured that the differences in the temperatures of the flow medium at the outlet of individual Steam generator tubes do not exceed a critical value.
  • This object is achieved by a number of steam generator tubes in the area of the funnel side walls another pipe outside diameter and / or another fin width than in the area surrounding the wall Combustion chamber.
  • the invention is based on the consideration that high Material loads of the steam generator tubes are avoided can be made by ensuring that the temperature differences the flow medium at the outlet of individual steam generator tubes do not exceed a critical value. Therefore should the heating of a steam generator tube at any point the steam generator significantly from the heating of others Differ steam generator tubes.
  • the combustion chamber In the area of the funnel side walls the combustion chamber, however, must be conventional Construction the length of the steam generator tubes with increasing Rejuvenation of the funnel can be varied. Some steam generator pipes thus have a shorter length than others and are therefore weaker in the area of the funnel sidewalls Heating exposed. In the conventional construction Therefore, a different heating of the steam generator tubes can be and fins due to geometric relationships in their arranged in the area of the funnel side walls lower section not avoid.
  • the steam generator is advantageously as a continuous steam generator designed.
  • a number of steam generator tubes in which the funnel side walls forming lower section on a smaller pipe diameter as in the combustion chamber wall forming upper portion are reduced.
  • the reduction of the pipe diameter in the funnel side walls allows it to be bored with the same number of Steam generator tubes as in the combustion chamber wall forming upper section.
  • the rejuvenation of the Hopper sidewalls will not be reduced by number from steam generator tubes, but by reducing the pipe diameter.
  • everyone is lost Steam generator tubes about the same length in the heated Range and it is a comparable heating of all steam generator tubes ensured.
  • the heat input into the flow medium does not take place only through the pipe walls, but also through the individual Steam generator tubes interconnecting fins.
  • the Width of the combustion chamber wall and the funnel side walls results itself from the number of steam generator tubes multiplied by the distance from tube axis to tube axis, the distance from Tube axis to tube axis equal to the tube diameter added to Width of a fin is.
  • the rejuvenation of Funnel side walls to take into account can therefore advantageously also the width of the fins in the lower, the Funnel side walls forming section of the steam generator tubes changed and in particular reduced.
  • the pipe outside diameter is in the lower Section by 5 to 15 percent over the pipe diameter reduced in the upper section.
  • the fin width is advantageous in the lower section compared to 30 to 70 percent reduced in width in the upper section. How, indeed has turned out to be a special one in this way effective utilization of the in the funnel side walls forming lower section of the steam generator tubes available reach standing heat.
  • a number of steam generator tubes advantageously at least partially parallel arranged to the direction of inclination of the funnel side walls.
  • Such an arrangement allows a particularly good adaptation the length of each steam generator tube to the heating conditions and thus a particularly uniform heating.
  • a less heated steam generator tube so to lay that it has a greater length inside of the heated area, and in this way the effect a weaker heating by the longer heating to compensate.
  • the advantages achieved by the invention are in particular in that in a design of the steam generator as Continuous steam generator with comparatively low structural Expense the occurrence of impermissibly large temperature differences the flow medium in individual steam generator tubes can be effectively avoided. Because especially in the Funnel side walls forming lower portion of the steam generator tubes all steam generator tubes of a similarly strong heating It can also be exposed to a feed the steam generator with low mass flow density not too very different flow rates and therefore not too inadmissibly high temperature differences of the flow medium come at the outlet of the steam generator tubes.
  • Fig. 1a is a schematic as a continuous steam generator ausgestalteter steam generator 1 shown, whose vertical Gas train is surrounded by a surrounding wall 4 and a combustion chamber forms at the bottom in one of funnel side walls 6 formed soil merges.
  • the floor includes one not shown discharge 8 for ash.
  • Burners in the vertically arranged steam generator tubes 12 formed surrounding wall 4 of the combustion chamber.
  • the vertically extending steam generator tubes 12 are welded together via fins 14 and form together with the fins 14 in their upper section the enclosure wall 4 of the combustion chamber.
  • an inlet collector 16 is arranged, from which the steam generator tubes 12 be fed with flow medium.
  • the flow rate of the flow medium through the individual Steam generator tubes 12 and the division of the Flow on the individual steam generator tubes 12 is strongly determined by the respective weights of the water columns in the individual steam generator tubes 12.
  • a heating, in the lower part of the combustion chamber, especially in the area of the funnel side walls 6, takes place, large Influence on the flow through the steam generator tubes 12 has.
  • a steam generator tube 12 in the area of the funnel side walls heated comparatively weak for example because it only at the top of the funnel side walls 6 in the heated Area enters and thus within the heated area has a comparatively short length, so it shows compared to other, relatively heated ones Steam generator tubes 12, which are inside the heated area have a longer length, a lower flow rate on.
  • the Surrounding wall 4 of the combustion chamber forms are all steam generator tubes Exposed to 12 similar heaters.
  • a steam generator tube 12 with a comparatively low flow rate will absorb more heat than one in these conditions with comparatively high throughput, so that from the different Heating the steam generator tubes 12 in the area the hopper side walls 6 may have significant differences occur in the outlet temperature of the flow medium.
  • a particularly uniform heating of the steam generator tubes 12 in the area of the funnel side walls 6 can be achieved by the steam generator tubes 12 in its lower section as shown in Fig. 1a partially not parallel to the direction of inclination of the soil are arranged.
  • This oblique arrangement allows the strength of the heating of each steam generator tube 12 largely at its length within the heated To adapt to the area.
  • the comparatively weak heating of a steam generator tube 12 is characterized by a through the oblique arrangement of the steam generator tubes 12 allowed greater length in the heated area compensated.
  • Fig. 1a shows an arrangement in which the steam generator tubes 12 in its lower portion, in the the pipe diameter is reduced, oblique - that is not parallel to the direction of inclination of the soil - are arranged.
  • This arrangement is to a certain extent, due to the geometry and the dimensions of soil, fins 14 and steam generator pipes 12 determined height H an arrangement of the steam generator tubes 12 provided parallel to the direction of inclination of the soil. Above this height H is the described oblique arrangement intended.
  • the steam generator tubes 12 also as in Fig. 1b shown to be arranged.
  • H is an oblique arrangement as in the first example the steam generator tubes 12 are provided, wherein the inclination angle the steam generator tubes 12 but compared to their original Direction in the plane of the soil is chosen so that the steam generator tubes 12 as well as the fins 14 in their oblique section the same pipe diameter respectively have the same width as in the upper section.
  • the pipe diameter and the fin width are in this case only reduced to height H
  • the steam generator tubes 12 may be as shown in FIG be arranged.
  • the outermost Steam generator tubes 12, ie those steam generator tubes 12, which have the greatest distance from the central axis A, over the entire height of the funnel side walls 6 both with not reduced pipe diameter and not reduced fin width executed as well as arranged obliquely.
  • the innermost Steam generator tubes 12 with the smallest distance from the central axis A are reduced over their entire length Pipe diameter and reduced fin width executed and parallel to the central axis A and thus to the direction of inclination of the soil.
  • Each between the extreme and the innermost steam generator tube 12 lying steam generator tubes 12 form the transition and each have a first Section with reduced pipe diameter and reduced Fins width, in which they are arranged parallel to the central axis are, and a second section with not reduced tube diameter and not reduced fin width, in which they obliquely and thus parallel to the outermost steam generator tube 12 are arranged on.

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Combustion & Propulsion (AREA)
  • Chemical & Material Sciences (AREA)
  • Control Of Steam Boilers And Waste-Gas Boilers (AREA)
  • Hydrogen, Water And Hydrids (AREA)
  • Combustion Of Fluid Fuel (AREA)
  • Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
  • Devices For Medical Bathing And Washing (AREA)
  • Production Of Liquid Hydrocarbon Mixture For Refining Petroleum (AREA)
  • Gas Burners (AREA)
EP03026647A 2003-11-19 2003-11-19 Durchlaufdampferzeuger Withdrawn EP1533565A1 (de)

Priority Applications (15)

Application Number Priority Date Filing Date Title
EP03026647A EP1533565A1 (de) 2003-11-19 2003-11-19 Durchlaufdampferzeuger
CN2004800403238A CN1902438B (zh) 2003-11-19 2004-10-26 直流式蒸汽发生器
AU2004291619A AU2004291619B2 (en) 2003-11-19 2004-10-26 Continuous steam generator
KR1020067012140A KR101177143B1 (ko) 2003-11-19 2004-10-26 연속적 증기 발생기
JP2006540218A JP4463825B2 (ja) 2003-11-19 2004-10-26 貫流ボイラ
BRPI0416776-7A BRPI0416776A (pt) 2003-11-19 2004-10-26 gerador de vapor contìnuo
PCT/EP2004/012102 WO2005050089A1 (de) 2003-11-19 2004-10-26 Durchlaufdampferzeuger
CA002546375A CA2546375A1 (en) 2003-11-19 2004-10-26 Continuous steam generator
EP04790884A EP1695007A1 (de) 2003-11-19 2004-10-26 Durchlaufdampferzeuger
RU2006121455/06A RU2382938C2 (ru) 2003-11-19 2004-10-26 Парогенератор
US10/579,997 US7516719B2 (en) 2003-11-19 2004-10-26 Continuous steam generator
TW093133474A TWI341914B (en) 2003-11-19 2004-11-03 Once-through steam generator
MYPI20044750A MY140359A (en) 2003-11-19 2004-11-17 Once-through steam generator
ARP040104275A AR047127A1 (es) 2003-11-19 2004-11-19 Generador continuo de vapor
ZA200603389A ZA200603389B (en) 2003-11-19 2006-04-28 Continuous steam generator

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP03026647A EP1533565A1 (de) 2003-11-19 2003-11-19 Durchlaufdampferzeuger

Publications (1)

Publication Number Publication Date
EP1533565A1 true EP1533565A1 (de) 2005-05-25

Family

ID=34429402

Family Applications (2)

Application Number Title Priority Date Filing Date
EP03026647A Withdrawn EP1533565A1 (de) 2003-11-19 2003-11-19 Durchlaufdampferzeuger
EP04790884A Withdrawn EP1695007A1 (de) 2003-11-19 2004-10-26 Durchlaufdampferzeuger

Family Applications After (1)

Application Number Title Priority Date Filing Date
EP04790884A Withdrawn EP1695007A1 (de) 2003-11-19 2004-10-26 Durchlaufdampferzeuger

Country Status (14)

Country Link
US (1) US7516719B2 (pt)
EP (2) EP1533565A1 (pt)
JP (1) JP4463825B2 (pt)
KR (1) KR101177143B1 (pt)
CN (1) CN1902438B (pt)
AR (1) AR047127A1 (pt)
AU (1) AU2004291619B2 (pt)
BR (1) BRPI0416776A (pt)
CA (1) CA2546375A1 (pt)
MY (1) MY140359A (pt)
RU (1) RU2382938C2 (pt)
TW (1) TWI341914B (pt)
WO (1) WO2005050089A1 (pt)
ZA (1) ZA200603389B (pt)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2524166A4 (en) * 2010-01-15 2015-08-05 Foster Wheeler Energia Oy STEAM GENERATOR COOKER

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP5193007B2 (ja) 2008-12-03 2013-05-08 三菱重工業株式会社 ボイラ構造
WO2012149080A2 (en) 2011-04-27 2012-11-01 Bp Corporation North America Inc. Marine subsea riser systems and methods
CN108072026A (zh) * 2016-11-17 2018-05-25 华北电力大学（保定） 一种新型超临界直流三压再热余热锅炉

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2414705A1 (fr) * 1978-01-17 1979-08-10 Metalurgiczny Huta K Recuperateur de chaleur, notamment pour convertisseur d'acierie
EP0543564A1 (en) * 1991-11-21 1993-05-26 Foster Wheeler Energy Corporation Water-cooled cyclone separator
US5701850A (en) * 1992-08-19 1997-12-30 Siemens Aktiengesellschaft Steam generator
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
US5979370A (en) * 1994-09-01 1999-11-09 Siemens Aktiengesellschaft Continuous-flow steam generator
US6189491B1 (en) * 1996-12-12 2001-02-20 Siemens Aktiengesellschaft Steam generator

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3662716A (en) * 1970-12-14 1972-05-16 Foster Wheeler Corp Furnance enclosure for natural circulation generator
US3872836A (en) * 1973-09-18 1975-03-25 Foster Wheeler Corp Coal-fired generator of medium to large capacity
US4465023A (en) * 1982-09-30 1984-08-14 Rockwell International Corporation Programmed combustion steam generator
DE3473026D1 (en) * 1983-08-31 1988-09-01 Sulzer Ag Vertical gas pass for a heat exchanger
CN1016532B (zh) * 1985-09-23 1992-05-06 劳舍兄弟有限公司 燃烧矿物燃料的蒸汽发生器
IN165916B (pt) * 1985-12-04 1990-02-10 Sulzer Ag
EP0349834B1 (de) * 1988-07-04 1996-04-17 Siemens Aktiengesellschaft Durchlaufdampferzeuger
US4944250A (en) * 1989-03-30 1990-07-31 Foster Wheeler Energy Corporation Cyclone separator including a hopper formed by water-steam cooled walls
DE59009015D1 (de) * 1990-01-31 1995-06-08 Siemens Ag Dampferzeuger.
US5226936A (en) * 1991-11-21 1993-07-13 Foster Wheeler Energy Corporation Water-cooled cyclone separator
JPH08170803A (ja) * 1994-12-16 1996-07-02 Mitsubishi Heavy Ind Ltd 蒸気発生装置
DE19600004C2 (de) * 1996-01-02 1998-11-19 Siemens Ag Durchlaufdampferzeuger mit spiralförmig angeordneten Verdampferrohren
EP1794495B1 (de) * 2004-09-23 2017-04-26 Siemens Aktiengesellschaft Fossil beheizter durchlaufdampferzeuger

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2414705A1 (fr) * 1978-01-17 1979-08-10 Metalurgiczny Huta K Recuperateur de chaleur, notamment pour convertisseur d'acierie
EP0543564A1 (en) * 1991-11-21 1993-05-26 Foster Wheeler Energy Corporation Water-cooled cyclone separator
US5701850A (en) * 1992-08-19 1997-12-30 Siemens Aktiengesellschaft Steam generator
US5979370A (en) * 1994-09-01 1999-11-09 Siemens Aktiengesellschaft Continuous-flow steam generator
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
US6189491B1 (en) * 1996-12-12 2001-02-20 Siemens Aktiengesellschaft Steam generator

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2524166A4 (en) * 2010-01-15 2015-08-05 Foster Wheeler Energia Oy STEAM GENERATOR COOKER

Also Published As

Publication number Publication date
WO2005050089A1 (de) 2005-06-02
BRPI0416776A (pt) 2007-02-27
ZA200603389B (en) 2007-09-26
KR20070026344A (ko) 2007-03-08
RU2006121455A (ru) 2007-12-27
RU2382938C2 (ru) 2010-02-27
TWI341914B (en) 2011-05-11
JP2007534911A (ja) 2007-11-29
US7516719B2 (en) 2009-04-14
EP1695007A1 (de) 2006-08-30
MY140359A (en) 2009-12-31
CN1902438B (zh) 2010-06-16
US20070144456A1 (en) 2007-06-28
TW200519324A (en) 2005-06-16
AU2004291619B2 (en) 2009-09-10
CN1902438A (zh) 2007-01-24
AR047127A1 (es) 2006-01-11
AU2004291619A1 (en) 2005-06-02
JP4463825B2 (ja) 2010-05-19
KR101177143B1 (ko) 2012-08-24
CA2546375A1 (en) 2005-06-02

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