EP1936268B1 - Hängender Dampferzeuger - Google Patents

Hängender Dampferzeuger Download PDF

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Publication number
EP1936268B1
EP1936268B1 EP07100846A EP07100846A EP1936268B1 EP 1936268 B1 EP1936268 B1 EP 1936268B1 EP 07100846 A EP07100846 A EP 07100846A EP 07100846 A EP07100846 A EP 07100846A EP 1936268 B1 EP1936268 B1 EP 1936268B1
Authority
EP
European Patent Office
Prior art keywords
vertical
tube wall
steam generator
tubes
vertical tube
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.)
Active
Application number
EP07100846A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP1936268A3 (de
EP1936268A2 (de
Inventor
Martin Becker
Vu-Tam Lai
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.)
Hitachi Power Europe GmbH
Original Assignee
Hitachi Power Europe GmbH
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 Hitachi Power Europe GmbH filed Critical Hitachi Power Europe GmbH
Priority to PL07100846T priority Critical patent/PL1936268T3/pl
Publication of EP1936268A2 publication Critical patent/EP1936268A2/de
Publication of EP1936268A3 publication Critical patent/EP1936268A3/de
Application granted granted Critical
Publication of EP1936268B1 publication Critical patent/EP1936268B1/de
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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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
    • F22B37/24—Supporting, suspending or setting arrangements, e.g. heat shielding
    • F22B37/244—Supporting, suspending or setting arrangements, e.g. heat shielding for water-tube steam generators suspended from the top
    • 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
    • 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
    • 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
    • F22B37/64—Mounting of, or supporting arrangements for, tube units
    • F22B37/645—Mounting of, or supporting arrangements for, tube units involving upper vertically-disposed water tubes and lower horizontally- or helically disposed water tubes
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F22—STEAM GENERATION
    • F22G—SUPERHEATING OF STEAM
    • F22G7/00—Steam superheaters characterised by location, arrangement, or disposition
    • F22G7/14—Steam superheaters characterised by location, arrangement, or disposition in water-tube boilers, e.g. between banks of water tubes
    • F22G7/145—Steam superheaters characterised by location, arrangement, or disposition in water-tube boilers, e.g. between banks of water tubes of inclined type, i.e. the water-tube sets being inclined with respect to the horizontal plane

Definitions

  • the invention relates to a hanging steam generator having a steam generator upper part with a vertical tube wall of vertical tubes and formed between these vertical webs and a suspended on the vertical tube wall steam generator base with a slanted tube wall of inclined tubes and between them formed slanted webs.
  • the walls of larger steam generators in the forced circulation or forced circulation principle are now designed as membrane pipe walls of pipe-web constructions. So that the steam generators can stretch freely, they are suspended in a boiler scaffold.
  • the boiler scaffold has a boiler scaffold ceiling, in which the support anchors of the steam generator are suspended. The entire load of the steam generator is thus absorbed by the boiler scaffold ceiling.
  • the steam generator must in turn be such that the total weight, consisting of its own weight, water filling, ash and the like can be introduced into the boiler scaffold ceiling.
  • the steam generator upper part has membrane tube walls, in which the tubes are arranged vertically and are flowed through perpendicularly by the medium (here referred to as the vertical tube wall).
  • the combustion chamber is surrounded by membrane tube walls, which are not arranged vertically but inclined to the horizontal (here referred to with inclined tube wall).
  • the load transfer runs in the vertical tube wall of the steam generator along the longitudinal axis of the vertical tubes, so that they are subjected to train in Rohrachsraum.
  • the load transfer runs in the inclined tube wall at small pitch angles transverse to the longitudinal axis of the inclined tubes.
  • the tube cross-section which is weaker compared to the tube axis, transmits part of the loads that occur.
  • a steam generator in which the vertical tube wall having a steam generator upper part with the inclined tube wall having a steam generator lower part is connected via a load-receiving connection.
  • This compound consists of tensile or supporting elements, which are connected to each other and on the other hand respectively to the vertical tube wall or the inclined tube wall.
  • the gaps created there are largely closed with the aid of subsequently inserted sealing plates so that they form a coupling band.
  • a clutch band having a number of short tube angles is further excluded from Japanese Patent Application 2000 186801 A known.
  • a steam generator base is attached with a slanted tube wall by means of tensile or supporting elements on a vertical tube wall having a steam generator upper part.
  • the angle band having coupling band is substantially closed by means of attached fins.
  • the invention relates to a hanging steam generator having a steam generator upper part with a vertical tube wall of vertical tubes and formed between these vertical webs and a suspended on the vertical tube wall steam generator base with a slanted tube wall of inclined tubes and between them formed slanted webs.
  • a coupling band is formed, which has a plurality of vertical tube angles and a plurality of helical tube angles.
  • the vertical tube angle and the Schrägrohrwinkel each have a from the coupling band to the outside, preferably vertically projecting connecting leg.
  • the second leg of each of the vertical tube angles is a vertical leg formed in the coupling band.
  • the second leg of each of the Schrägrohrwinkel is a skew leg, which is also formed in the coupling band.
  • the vertical leg of each vertical tube angle is vertically aligned with and welded to an overlying vertical tube of the vertical tube wall.
  • the skew leg of each of the diagonal tube angles is on one of
  • suspension of the lower part of the steam generator on the vertical tube wall is carried out solely by welding the coupling band with the inclined tube wall and by welding the vertical leg of the vertical tube angle of the coupling band on the vertical tubes of the vertical tube wall, without the lower part of the steam generator on additional outer traction or support elements, which are suspended from the vertical tube wall, supported or suspended.
  • a thermal expansion joint is formed between the coupling band and the vertical webs of the vertical tube wall.
  • an outer distributor system is formed, which is connected to the respective connecting legs of the vertical tube angle and the oblique tube angle.
  • the weight of the steam generator lower part along the upper edge of the inclined tube wall is smoothly introduced into the coupling band, without causing load peaks at the upper end portions of the inclined tubes, because the oblique leg welded to the upper end portions of the inclined tubes of the inclined tube connection angle are formed in the coupling band and the load evenly distributed by means of the inclined webs of the inclined tube wall in the coupling band and from this by means of the vertical leg of the vertical connecting pipe angle evenly distributed in the vertical tubes of the vertical tube wall is introduced.
  • advantages of the invention are particularly for single or multi-generous steam generators in forced circulation or forced circulation principle with spiral-burned combustion chamber up to a height of 200 m and a combustion chamber of up to 30 mx 30 m at largely arbitrary Slope angles of the inclined pipes and all common pipe dimensions of the steam generator pipe as well as when using different fuels, such as oil, gas, hard coal and lignite.
  • the number of vertical tubes of the vertical tube wall may be larger than the number of inclined tubes of the inclined tube wall, so that the coupling band and therefore the inclined tube wall are suspended by means of groups of a plurality of vertical tube angles per slant tube on the vertical tube wall and therefore the load transfer of the slant tube wall is distributed on the vertical tube wall on a plurality of vertical tubes per inclined tube.
  • the coupling band is assembled from a plurality of mutually welded coupling mold plates, each of which preferably forged mold plate at least and preferably one of the groups of a plurality of vertical tube angles and a Schrägrohrwinkel per group.
  • mold plates with a plurality of groups of vertical tube angles and inclined tube angles may also be provided, which can also alternate with such mold plates with only one such group or in particular combined at the corners of the inclined tube wall.
  • the mold plates can have two to five vertical tube angles per group, which can also be combined with one another.
  • the terminal leg of the Schrärohrrohrwinkels and the terminal legs of one of the vertical tube angles on the one side edge of the outside of the mold plate are stacked and the length of the vertical leg of the other vertical tube angle of the group with increasing distance from the a side edge is increasingly larger, so that the terminal legs of the group are arranged in a parallel to the skew leg of the Schrägrohrwinkels row.
  • Fig. 1 of the drawings shows a steam generator according to the invention in a schematic perspective view
  • Fig. 2 shows a section of the steam generator at the transition between the vertical tube wall (2) of the steam generator upper part (1) and the inclined tube wall (6) of the steam generator lower part (5) with an intermediate distributor system (30)
  • Fig. 3 shows a section Fig. 2 in the amount of the coupling band 10, but without the distribution system
  • Fig. 4 an embodiment of the forged coupling mold plates 18, from which the coupling band 10 from Fig. 3 is composed.
  • the hanging steam generator off Fig. 1 has a steam generator upper part 1, which is surrounded by a vertical pipe wall 2, and a steam generator lower part 5, the is surrounded by a slanted pipe wall 6 and is suspended on the vertical tube wall 2 of the steam generator upper part 1 without external tension and / or support elements.
  • FIGS. 2 and 3 This is how from the FIGS. 2 and 3 it can be seen along the upper edge of the inclined tube wall 6 from a forged mold plates 16 (FIG. Fig. 4 ), which are welded together, formed composite coupling band 10, which in turn is welded to the inclined tube wall 6 and in which vertical tube angle 11 are formed, which in turn are welded to the vertical tubes 3 of the vertical tube wall 2. Outside the vertical tube angle 11, an expansion joint 25 is formed between the coupling band 10 and the vertical tube wall 2, so that the weight of the steam generator base is taken up solely by the vertical tubes 3 of the steam generator upper part.
  • Both the vertical tube wall 2 and the inclined tube wall 6 is formed as a membrane wall of a tube-web construction.
  • the vertical tube wall 2 has a plurality of vertical tubes 3 with vertical webs 4 therebetween
  • the inclined tube wall 6 has a plurality of inclined tubes 7 with inclined webs 8 therebetween.
  • the upper end portions 9 of the inclined tubes 7 therefore end at the upper edge of the inclined tube wall 6 in the horizontal direction offset from each other.
  • the coupling band 10 is obliquely recessed at its lower edge for each of the vertically upwardly exposed end portions 9 of the inclined tubes 7, as for one of the forged coupling plates 16 from Fig. 4 can be seen, so that the coupling mold plates 16 a corresponding to the oblique tube angle obliquely Welding edge 19 have, on which the coupling band 10 is welded in each case above the respective end portion 9 of the inclined tubes 7 along the same with the inclined tube wall 6.
  • the mold plates 16 of the coupling band 10 have below each helical leg 15 a like this obliquely extending welding edge 20, along which the coupling band 10 is also welded to the respective inclined web 8 of the inclined tube 6 in extension of the welding edge 19 of the respective adjacent mold plate 16.
  • the mold plates 18 also have vertical welding edges 18 along their two vertical side edges where they are welded to the respectively adjacent mold plate of the coupling tape 10 such that the oblique welding edge 19 of one mold plate aligns with the oblique welding edge 20 of the adjacent mold plate in its extension is.
  • a group of a plurality of vertical tube angles 11 and a helical tube angle 15 is formed such that the terminal legs 12 of the helical tube angle and one of the vertical tube angle 11-1 vertically stacked on the in Fig. 4 left side edge of the mold plate are arranged and the connecting legs 12 of the vertical tube angle 11-1 to 11-4 are arranged in a row which is parallel to the axis of the oblique leg 15 of the Schrärohrwinkel 14 and therefore of the upper end portion 9 (FIGS. Fig. 3 ) of the oblique leg welded to the inclined tube runs.
  • the vertical legs 11-1 to 11-4 have a length which becomes progressively larger from the vertical pipe angle 11-1 to the vertical pipe angle 11-4 in accordance with the inclination of the row.
  • the dimensions of the membrane tube walls in the upper part of the steam generator and in the lower part of the steam generator and their materials are selected by targeted optimization calculation such that the inclined tube wall of the lower part is self-supporting solely on the vertical tubes of the vertical tube wall and therefore without the aid of external pulls. and / or supporting elements is suspended.
  • targeted optimization calculation such that the inclined tube wall of the lower part is self-supporting solely on the vertical tubes of the vertical tube wall and therefore without the aid of external pulls. and / or supporting elements is suspended.
  • the pitch angle of the inclined tubes can be arbitrary.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Thermal Sciences (AREA)
  • Physics & Mathematics (AREA)
  • Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
  • Devices For Medical Bathing And Washing (AREA)
  • Supports For Pipes And Cables (AREA)
  • Air Humidification (AREA)
  • Control Of Steam Boilers And Waste-Gas Boilers (AREA)
  • Cosmetics (AREA)
  • Fluidized-Bed Combustion And Resonant Combustion (AREA)
  • Butt Welding And Welding Of Specific Article (AREA)
EP07100846A 2006-02-02 2007-01-19 Hängender Dampferzeuger Active EP1936268B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PL07100846T PL1936268T3 (pl) 2006-02-02 2007-01-19 Wiszący wytwarzacz pary

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102006005208A DE102006005208A1 (de) 2006-02-02 2006-02-02 Hängender Dampferzeuger

Publications (3)

Publication Number Publication Date
EP1936268A2 EP1936268A2 (de) 2008-06-25
EP1936268A3 EP1936268A3 (de) 2009-02-25
EP1936268B1 true EP1936268B1 (de) 2011-04-13

Family

ID=38265843

Family Applications (1)

Application Number Title Priority Date Filing Date
EP07100846A Active EP1936268B1 (de) 2006-02-02 2007-01-19 Hängender Dampferzeuger

Country Status (14)

Country Link
US (1) US7509928B2 (pl)
EP (1) EP1936268B1 (pl)
AT (1) ATE505689T1 (pl)
AU (1) AU2007200274B2 (pl)
CA (1) CA2575259C (pl)
DE (2) DE102006005208A1 (pl)
ES (1) ES2362799T3 (pl)
HR (1) HRP20110460T1 (pl)
PL (1) PL1936268T3 (pl)
PT (1) PT1936268E (pl)
RS (1) RS51882B (pl)
RU (1) RU2364785C2 (pl)
UA (1) UA89640C2 (pl)
ZA (1) ZA200700931B (pl)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7559294B2 (en) * 2007-04-26 2009-07-14 Babcock & Wilcox Power Generation Group Inc. End support configuration for steam tubes of a superheater or reheater
DE102008047784A1 (de) 2008-07-02 2010-01-07 Hitachi Power Europe Gmbh Membranwand eines Großdampferzeugers
RU2566749C2 (ru) * 2009-11-10 2015-10-27 Басф Се Кожухотрубный реактор для получения ангидрида малеиновой кислоты
JP5931693B2 (ja) * 2012-10-25 2016-06-08 三菱日立パワーシステムズ株式会社 中小容量火力発電プラントのリプレース又はリノベーションの方法及び中小容量火力発電プラント用ボイラのリプレース又はリノベーションの方法
CN103471081A (zh) * 2013-10-01 2013-12-25 哈尔滨锅炉厂有限责任公司 强制循环锅炉过热器管的连接装置
CN103791484B (zh) * 2013-12-23 2016-06-08 哈尔滨锅炉厂有限责任公司 顶部大管道排布紧凑的300mw亚临界锅炉

Family Cites Families (22)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL132681C (pl) * 1959-05-01
DE1401371B2 (de) * 1961-11-02 1970-02-19 Siemens AG, 1000 Berlin u. 8000 München Durchlaufkessel mit überdruckfeuerung
US3307524A (en) * 1965-09-16 1967-03-07 Combustion Eng Fluid heater support
DE1551015A1 (de) * 1966-09-27 1970-03-19 Babcock & Wilcox Ag Turmkessel mit spiralig gewickelten Membranwaenden
DE2316135A1 (de) * 1973-03-31 1974-10-03 Steinmueller Gmbh L & C Haengender dampferzeuger
DE2557427A1 (de) * 1975-12-19 1977-06-30 Kraftwerk Union Ag Schaltung einer feuerraumnase bei einem durchlaufkessel mit gasdicht verschweissten waenden in zweizugbauweise
DE2621189C3 (de) * 1976-05-13 1980-02-21 Balcke-Duerr Ag, 4030 Ratingen Vorrichtung zur Aufhängung einer Rohrwand
US4178881A (en) * 1977-12-16 1979-12-18 Foster Wheeler Energy Corporation Vapor generating system utilizing angularly arranged bifurcated furnace boundary wall fluid flow tubes
US4245588A (en) * 1979-01-16 1981-01-20 Foster Wheeler Energy Corporation Vapor generating system having a division wall penetrating a furnace boundary wall formed in part by angularly extending fluid flow tubes
JPS61211606A (ja) * 1985-01-04 1986-09-19 ザ・バブコツク・アンド・ウイルコツクス・カンパニ− 炉の囲い管壁
US4864973A (en) * 1985-01-04 1989-09-12 The Babcock & Wilcox Company Spiral to vertical furnace tube transition
EP0349834B1 (de) * 1988-07-04 1996-04-17 Siemens Aktiengesellschaft Durchlaufdampferzeuger
JPH08565Y2 (ja) * 1990-06-18 1996-01-10 三菱重工業株式会社 二層流体の均一分配伝熱管
RU2070684C1 (ru) * 1993-05-31 1996-12-20 Акционерное общество "Белгородский завод энергетического машиностроения" Прямоугольный газоход котла
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
JPH08170803A (ja) * 1994-12-16 1996-07-02 Mitsubishi Heavy Ind Ltd 蒸気発生装置
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
US5722353A (en) * 1995-05-04 1998-03-03 The Babcock & Wilcox Company Once-through steam generator vertical tube hopper enclosure with continous transition to spiral furnace enclosure
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
JP2000186801A (ja) * 1998-12-21 2000-07-04 Ishikawajima Harima Heavy Ind Co Ltd シザース部の配管構造
EP1544540B1 (en) * 2002-09-09 2008-12-17 Babcock-Hitachi Kabushiki Kaisha Furnace wall structure
CN1831426A (zh) * 2005-03-10 2006-09-13 三井巴布科克能源公司 超临界下射锅炉

Also Published As

Publication number Publication date
RS51882B (sr) 2012-02-29
AU2007200274B2 (en) 2010-07-01
RU2364785C2 (ru) 2009-08-20
EP1936268A3 (de) 2009-02-25
ES2362799T3 (es) 2011-07-13
AU2007200274A1 (en) 2007-08-16
US20070175413A1 (en) 2007-08-02
PL1936268T3 (pl) 2011-09-30
ZA200700931B (en) 2009-09-30
CA2575259A1 (en) 2007-08-02
DE102006005208A1 (de) 2007-08-16
RU2007103228A (ru) 2008-08-10
US7509928B2 (en) 2009-03-31
EP1936268A2 (de) 2008-06-25
CA2575259C (en) 2009-02-17
ATE505689T1 (de) 2011-04-15
PT1936268E (pt) 2011-06-17
DE502007006935D1 (de) 2011-05-26
HRP20110460T1 (hr) 2011-07-31
UA89640C2 (en) 2010-02-25

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