EP2174060B1 - Générateur de vapeur - Google Patents

Générateur de vapeur Download PDF

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Publication number
EP2174060B1
EP2174060B1 EP08786769.3A EP08786769A EP2174060B1 EP 2174060 B1 EP2174060 B1 EP 2174060B1 EP 08786769 A EP08786769 A EP 08786769A EP 2174060 B1 EP2174060 B1 EP 2174060B1
Authority
EP
European Patent Office
Prior art keywords
steam generator
heating gas
heating
horizontal
loads
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
EP08786769.3A
Other languages
German (de)
English (en)
Other versions
EP2174060A2 (fr
Inventor
Fred Heinrichs
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 PL08786769T priority Critical patent/PL2174060T3/pl
Priority to EP08786769.3A priority patent/EP2174060B1/fr
Publication of EP2174060A2 publication Critical patent/EP2174060A2/fr
Application granted granted Critical
Publication of EP2174060B1 publication Critical patent/EP2174060B1/fr
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
    • F22B37/242—Supporting, suspending, or setting arrangements, e.g. heat shielding for bottom supported water-tube steam generators
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F22—STEAM GENERATION
    • F22B—METHODS OF STEAM GENERATION; STEAM BOILERS
    • F22B15/00—Water-tube boilers of horizontal type, i.e. the water-tube sets being arranged horizontally

Definitions

  • the invention relates to a steam generator, in particular in a horizontal construction, with a through-flow in a nearly horizontal heating gas from a heating medium heating gas channel.
  • the heat contained in the relaxed working fluid or heating gas from the gas turbine is used to generate steam for the steam turbine.
  • the heat transfer takes place in a heat recovery steam generator connected downstream of the gas turbine, in which a number of heating surfaces are usually arranged for water preheating, steam generation and steam superheating.
  • the heating surfaces are connected in the water-steam cycle of the steam turbine.
  • the water-steam cycle usually includes several, z. B. three, pressure levels, each pressure stage may have a Verdampferloom phenomenon.
  • a heat recovery steam generator in horizontal construction, in which the heating medium or heating gas, ie in particular the exhaust gas from the gas turbine, is guided in approximately horizontal flow direction through the steam generator.
  • This horizontal design allows in comparison to the so-called stationary construction, in which the heating medium flows through the steam generator in a substantially vertical direction, in particular to keep the construction cost comparatively low.
  • a portal frame framework is chosen for the outer walls of the steam generator or its heating gas channel forming side walls as the usual structural solution over which the resulting loads are introduced into the foundation.
  • the resulting as a result of the internal pressure of the flue gas load component initiates comparatively large bending moments in the support structure, so that appropriately dimensioned components and components must be provided in the design of the structure. For a suitable recording of these loads, a comparatively high material and manufacturing effort is required.
  • a heat recovery steam generator of lying type shows the document US6092591A .
  • the invention is therefore an object of the invention to provide a steam generator of the above type, in which with a particularly low cost and in a particularly simple design a reliable recording of said loads, in particular given by the design internal pressure of the heating gas additional loads guaranteed ,
  • This object is achieved by the features of independent claim 1.
  • the invention is based on the consideration that the manufacturing and material-related expense for reliable derivation of said loads can be kept particularly low, especially by the introduced via the internal pressure of the flue gas load component as in conventional systems on individual frame elements of the heating gas duct, but Instead, it is concentrated in the foundation.
  • these support frames should be connected in the manner of a truss structure on appropriately positioned horizontal discs.
  • the horizontal discs are designed in the manner of horizontal struts.
  • the free clamping heights significantly, for example, reduced to one third, so that the vertical supports only about one-eighth (corresponding to 12.5%) the usual bending moments are charged.
  • a reliable support with significantly reduced material usage can be achieved.
  • the occurring deformations are also significantly reduced by the use of H-trusses.
  • a particularly reliable introduction of the loads is achievable by the available through the horizontal struts framework is provided particularly symmetrical and evenly distributed for the outer surfaces of the Schugaskanals.
  • the horizontal discs are advantageously arranged on both sides of the Schugaskanals.
  • a particularly symmetrical and therefore comparatively simple and effective construction can be achieved by two horizontal struts are arranged in pairs opposite one another to the heating gas channel in a particularly advantageous embodiment.
  • the components forming the truss frame are designed with regard to their choice of material and dimensioning so that the loads and bending moments introduced via the internal pressure of the flue gas can be reliably discharged with an adequately dimensioned safety reserve, given an internal pressure of the heating gas of about 70 mbar.
  • the comparatively highest internal pressure of the heating gas usually prevails in the inlet region of the heating gas duct is moreover advantageously taken into account by two horizontal disks arranged on opposite side walls of the heating gas duct in the inflow region of the heating gas duct by a substantially horizontally oriented tension rod connected to each other.
  • the steam generator is used as a heat recovery steam generator of a gas and steam turbine plant.
  • the steam generator is advantageously one of the heating gas Gas turbine downstream.
  • this circuit can be conveniently provided behind the gas turbine an additional firing to increase the temperature of the heating gas.
  • a truss frame is formed as a supporting structure for the Schugaskanal by connecting the support frame interconnecting horizontal discs on the reliable and concentrated discharge of the resulting loads is made possible with particularly low material and manufacturing costs.
  • the vertical supports between the two truss frames at the flue gas inlet and at the flue gas outlet side of the heating gas channel are thus still burdened with the usual normal forces by vertical loads, but the resulting bending moments due to the reduction of the free clamping heights can be significantly reduced. Since the bending moments are given approximately according to the relationship M ⁇ Q * l 2/11, can be reduced to about one-eighth by the achievable over the truss discs reduction of the free length l to about one third as well as the respective bending moment.
  • the steam generator 1 is designed as a heat recovery steam generator and downstream of a gas turbine not shown in detail on the exhaust side.
  • the steam generator 1 has a surrounding wall 2, which forms in the manner of a horizontal construction a in a nearly horizontal, indicated by the arrow 4 Studgasraum x through the gas channel 6 for the exhaust gas from the gas turbine.
  • a number of suitably designed and dimensioned heating surfaces for preheating, evaporation and superheating of the flow medium is arranged in each case.
  • the surrounding the Edelgaskanal 6 surrounding wall 2 is constructed layered in the embodiment in the usual design, adjacent to a skin forming the sheet including adjusting a insulation provided as a Dämmungs initial is arranged, which in turn is limited to the interior of the Schugaskanals 6 out of a liner.
  • the heating gas channel 6 On the input side, the heating gas channel 6 has a comparatively small free flow cross section, which widens continuously in the area of a transition section 8 in the direction of the heating gas 4 up to the actual free flow cross section of the heating gas channel 6.
  • the structural design of the steam generator 1 is designed specifically for a reliable recording of the resulting loads at particularly low manufacturing and material costs.
  • the supporting structure of the steam generator 1 on the one hand comprises a number of vertical supports 10, which are designed in terms of dimensioning and choice of material such that they can forward the resulting vertical loads from Schurochen, pipes and the like readily to the foundation.
  • a truss support frame 12 is provided over the other resulting loads are deliberately and concentrated derived in the foundation.
  • the truss support frame 12 is formed from a number of seen in Bankgasraum x successively arranged support frame 14, which include the Schugaskanal 6 respectively, and which are connected to each other via a number of horizontal discs 16.
  • the horizontal discs 16 are arranged on both sides of the Schugaskanals 6 and in pairs opposite each other.
  • the embodiment according to the FIG two support frames 14 are shown, which could be provided depending on possible further design criteria of the steam generator and a larger number of support frame 14. This is useful, for example, in the case of the arrangement of an additional firing or a catalyst.
  • a tension rod 18 which is oriented essentially horizontally.
  • the tie rods 18 is just in the inlet region of the Schugaskanals 6, where in the case of operation of the steam generator 1 usually the largest internal pressure of the hot gas is applied, the given by the internal pressure loads that can be up to five times higher than the wind loads, suitably coupled and compensated for each other so that no introduction of these loads or the resulting bending moments on the framework framework 12 in the foundation is required.
  • the truss frames 12 are designed in the embodiment with a base width of about 2.75 m.
  • two horizontal disks 16 are provided on each side of the heating gas channel 6 for load acceptance and delivery to the truss frame 12.
  • the free clamping heights of the respective side surfaces of the Edelgaskanals 6 are thus reduced in terms of force and torque introduction to one third compared to the full height of the Edelgaskanals 6. Since the corresponding bending moments are given according to the relationship M ⁇ Q * l 2/11, thus the respective bending moment is reduced by the correspondingly lower free clamping height of about one-eighth or 12.5% of the costs necessary for the full height of the heating gas channel 6 bending moment. This achieves a solution which can be achieved with a correspondingly lower use of material and the associated production outlay.

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Engine Equipment That Uses Special Cycles (AREA)
  • Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
  • Feeding, Discharge, Calcimining, Fusing, And Gas-Generation Devices (AREA)

Claims (2)

  1. Générateur (1) de vapeur comprenant un canal (6) pour du gaz de chauffage dans lequel peut passer, dans une direction (x) à peu près horizontale, un fluide de chauffage, qui est composé d'un certain nombre de cadres (14) d'appui disposés les uns derrière les autres, considérés dans la direction (x) du gaz de chauffage, au moins deux des cadres (14) d'appui étant reliés entre eux par un certain nombre de bandeaux (16) horizontaux, et les bandeaux (16) horizontaux étant disposés des deux côtés du canal (6) pour le gaz de chauffage, caractérisé en ce que deux bandeaux (16) horizontaux disposés sur des parois latérales opposées du canal (6) pour le gaz de chauffage sont reliés entre eux, dans la partie d'afflux du canal (6) pour le gaz de chauffage, par un tirant (18) dirigé sensiblement horizontalement.
  2. Générateur (1) de vapeur suivant la revendication 1, en amont duquel, du côté du gaz de chauffage, peut être montée une turbine à gaz.
EP08786769.3A 2007-08-10 2008-08-01 Générateur de vapeur Active EP2174060B1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
PL08786769T PL2174060T3 (pl) 2007-08-10 2008-08-01 Wytwornica pary
EP08786769.3A EP2174060B1 (fr) 2007-08-10 2008-08-01 Générateur de vapeur

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
EP07015829A EP2026000A1 (fr) 2007-08-10 2007-08-10 Générateur de vapeur
EP08786769.3A EP2174060B1 (fr) 2007-08-10 2008-08-01 Générateur de vapeur
PCT/EP2008/060149 WO2009021861A2 (fr) 2007-08-10 2008-08-01 Générateur de vapeur

Publications (2)

Publication Number Publication Date
EP2174060A2 EP2174060A2 (fr) 2010-04-14
EP2174060B1 true EP2174060B1 (fr) 2015-10-14

Family

ID=40070736

Family Applications (2)

Application Number Title Priority Date Filing Date
EP07015829A Withdrawn EP2026000A1 (fr) 2007-08-10 2007-08-10 Générateur de vapeur
EP08786769.3A Active EP2174060B1 (fr) 2007-08-10 2008-08-01 Générateur de vapeur

Family Applications Before (1)

Application Number Title Priority Date Filing Date
EP07015829A Withdrawn EP2026000A1 (fr) 2007-08-10 2007-08-10 Générateur de vapeur

Country Status (7)

Country Link
US (1) US8596227B2 (fr)
EP (2) EP2026000A1 (fr)
KR (1) KR101494483B1 (fr)
CN (1) CN101779081B (fr)
PL (1) PL2174060T3 (fr)
RU (1) RU2467249C2 (fr)
WO (1) WO2009021861A2 (fr)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2325559B1 (fr) * 2009-11-19 2016-12-28 NEM Power-Systems, Niederlassung Deutschland der NEM B.V. Niederlande Installation pour influencer un flux de gaz d'échappement
EP2336635B1 (fr) * 2009-12-19 2014-07-30 Oschatz Gmbh Chaudière de récupération de chaleur destinée au refroidissement de gaz d'échappement, notamment de gaz d'échappement contenant de la poussière
FI128596B (en) * 2019-06-10 2020-08-31 Valmet Technologies Oy Support beam arrangement for carrying a flue gas duct and power boiler that covers it

Family Cites Families (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR998913A (fr) 1952-01-24
FR1417696A (fr) * 1964-12-16 1965-11-12 Combustion Eng Perfectionnements aux foyers des chaudières à écrans tubulaires continus
SU569792A1 (ru) * 1975-10-27 1977-08-25 Предприятие П/Я А-3513 Конвективный газоход
SU900071A1 (ru) * 1978-12-19 1982-01-23 Производственное объединение "Уралэнергоцветмет" Конвективный газоход
DE3473637D1 (en) * 1983-09-08 1988-09-29 Sulzer Ag Steam generator
US4685426A (en) * 1986-05-05 1987-08-11 The Babcock & Wilcox Company Modular exhaust gas steam generator with common boiler casing
SE466417B (sv) * 1990-06-15 1992-02-10 Abb Carbon Ab Vraengningshinder foer spantbalkar i ramverk foer vertikalt monterade baeddkaerl
US5722354A (en) * 1995-12-08 1998-03-03 Db Riley, Inc. Heat recovery steam generating apparatus
US6186221B1 (en) * 1998-02-12 2001-02-13 Combustion Engineering, Inc. Heat recovery assembly
US6039008A (en) * 1999-02-01 2000-03-21 Combustion Engineering, Inc. Steam generator having an improved structural support system
US6092591A (en) * 1999-10-08 2000-07-25 Abb Alstom Power Inc. Top mounting arrangement for a heat exchange module
RU2187751C2 (ru) * 2000-09-29 2002-08-20 Открытое акционерное общество "Энергомашкорпорация" Устройство для крепления поверхностей нагрева котла
DE10335499B3 (de) * 2003-07-31 2004-11-25 Alstom Power Boiler Gmbh Montageverfahren für einen Dampferzeuger
JP4800843B2 (ja) * 2006-05-29 2011-10-26 株式会社日立プラントテクノロジー ボイラ火炉壁の据付方法
FI124485B (fi) * 2007-05-08 2014-09-30 Valmet Power Oy Kattilalaitos, tukirakenne ja menetelmä kattilalaitoksen soodakattilan seinien tukemiseksi
US8333170B2 (en) * 2008-12-23 2012-12-18 Doozan Babcock Energy America, LLC Buckstay system
JP5387324B2 (ja) * 2009-10-22 2014-01-15 株式会社Ｉｈｉ バックステー連結機構

Also Published As

Publication number Publication date
CN101779081B (zh) 2012-03-21
RU2467249C2 (ru) 2012-11-20
US8596227B2 (en) 2013-12-03
CN101779081A (zh) 2010-07-14
EP2174060A2 (fr) 2010-04-14
EP2026000A1 (fr) 2009-02-18
WO2009021861A3 (fr) 2009-06-11
PL2174060T3 (pl) 2016-04-29
RU2010108473A (ru) 2011-09-20
US20110030624A1 (en) 2011-02-10
KR20100066496A (ko) 2010-06-17
KR101494483B1 (ko) 2015-02-17
WO2009021861A2 (fr) 2009-02-19

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