EP0936404A2 - Générateur de vapeur avec plusieurs faisceaux tubulaires - Google Patents

Générateur de vapeur avec plusieurs faisceaux tubulaires Download PDF

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Publication number
EP0936404A2
EP0936404A2 EP99102429A EP99102429A EP0936404A2 EP 0936404 A2 EP0936404 A2 EP 0936404A2 EP 99102429 A EP99102429 A EP 99102429A EP 99102429 A EP99102429 A EP 99102429A EP 0936404 A2 EP0936404 A2 EP 0936404A2
Authority
EP
European Patent Office
Prior art keywords
flue gas
pipes
steam
distributor
evaporator
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Withdrawn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
EP99102429A
Other languages
German (de)
English (en)
Other versions
EP0936404A3 (fr
Inventor
Hermann Josef Brümmer
Werner Böving
Peter Dr. Deeskow
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.)
BBP Energy GmbH
Original Assignee
Babcock Kraftwerkstechnik 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 Babcock Kraftwerkstechnik GmbH filed Critical Babcock Kraftwerkstechnik GmbH
Publication of EP0936404A2 publication Critical patent/EP0936404A2/fr
Publication of EP0936404A3 publication Critical patent/EP0936404A3/fr
Withdrawn legal-status Critical Current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
    • F22B1/00—Methods of steam generation characterised by form of heating method
    • F22B1/02—Methods of steam generation characterised by form of heating method by exploitation of the heat content of hot heat carriers
    • F22B1/18—Methods of steam generation characterised by form of heating method by exploitation of the heat content of hot heat carriers the heat carrier being a hot gas, e.g. waste gas such as exhaust gas of internal-combustion engines
    • F22B1/1807—Methods of steam generation characterised by form of heating method by exploitation of the heat content of hot heat carriers the heat carrier being a hot gas, e.g. waste gas such as exhaust gas of internal-combustion engines using the exhaust gases of combustion engines
    • F22B1/1815—Methods of steam generation characterised by form of heating method by exploitation of the heat content of hot heat carriers the heat carrier being a hot gas, e.g. waste gas such as exhaust gas of internal-combustion engines using the exhaust gases of combustion engines using the exhaust gases of gas-turbines
    • 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 several in a flue gas duct through which flue gas flows Pipe bundles with the characteristics of the generic term of Claim.
  • the invention has for its object the generic To design steam generator so that in the presence of a uneven loading of the evaporator tubes constructive effort of the steam generator is reduced.
  • This task becomes a generic steam generator according to the invention by the characterizing features of Claim resolved.
  • a flue gas duct 1, for example, at the gas outlet Gas turbine can be connected through duct walls 2 limited.
  • the flue gas duct 1 is in the direction of the arrows 3 from a flue gas or flows through the turbine exhaust gas.
  • To the Flue gas duct 1 connects to a chimney 4 through which the Flue gases are removed.
  • Fig. 1 are in the flue gas channel 1 in the direction of flow Flue gas a high pressure superheater 5, one Medium pressure reheater 6, a high pressure evaporator 7, a high pressure preheater 8, a medium pressure evaporator 9 and one Medium pressure preheater 10 is provided.
  • a high pressure superheater 5 one Medium pressure reheater 6, a high pressure evaporator 7, a high pressure preheater 8, a medium pressure evaporator 9 and one Medium pressure preheater 10 is provided.
  • These are tube bundles arranged vertically in a horizontal flue gas duct 1.
  • the invention described below can also be used in one vertical flue gas duct 1 with horizontally arranged Pipe bundles can be realized.
  • the high-pressure circuit is considered below. The same arrangement is also on the medium pressure circuit applicable.
  • the High pressure preheater fed 8 feed water Via a high-pressure feed pump 11, the High pressure preheater fed 8 feed water. That in Heat exchange with the flue gas preheated feed water arrives after exiting the high pressure preheater 8 into one Distributor 12, from which it is connected via connecting pipes 13, 14 the tubes of the switched as a high pressure evaporator 7 Tube bundle. That evaporated in the high pressure evaporator 7 Water is fed to the high-pressure superheater 5 as steam.
  • the superheated high pressure steam is on a not shown High pressure steam turbine given.
  • the evaporator tube bundle is shown in FIG. 2 in two or more Pipe groups 15, 16 divided in the direction of flow of the Smoke gas lie one behind the other.
  • the tubes of each tube group 15, 16 are each on the input side and on the output side with a Collector tube 17, 19 connected. From the output side Collector tubes 17 go out overflow tubes 18, which have a Bottle not shown led to the high pressure superheater 5 are.
  • the inlet-side collector pipes 19 are on the Connecting pipes 13, 14 connected to the manifold 12, which with the exit of the high pressure preheater 8 is connected.
  • the preheated supplied to the manifold 12 from the preheater Feed water can contain steam components. With Froude numbers from less than 10 segregates in the distributor 12 supplied water-steam mixture. The result is steam collects in the upper portion of the manifold 12 while the lower area contains water.
  • the connecting pipes 13, 14 are different Height levels connected to the distributor 12. That to the lower region of the distributor 12 forming the water space 20 connected connecting pipe 13 is to the pipes of the Pipe group 15 of the evaporator tube bundle 7 guided by the Flue gas flows first. That at the top of the Distributor 12 connected connecting pipe 14 is to the Tubes of the tube group 16 of the evaporator tube bundle 7, which is flown last by the flue gas. At low Steam proportions in the water-steam mixture will be the last flowed pipe group 16 as well as the other pipe groups 15th charged with water. However, has in the distributor 12th enough steam separated and collected in the steam room 21, so the tubes of the tube group 16 that has been subjected to the last flow mostly supplied with steam. The fact that for the Heat exchange with saturated steam is a comparatively colder one Flue gas is available, overheating in the of which poorer heat-transmitting steam flowed through pipes avoided.

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Sustainable Development (AREA)
  • Sustainable Energy (AREA)
  • Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
EP99102429A 1998-02-16 1999-02-09 Générateur de vapeur avec plusieurs faisceaux tubulaires Withdrawn EP0936404A3 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19806244 1998-02-16
DE1998106244 DE19806244A1 (de) 1998-02-16 1998-02-16 Dampferzeuger mit mehreren Rohrbündeln

Publications (2)

Publication Number Publication Date
EP0936404A2 true EP0936404A2 (fr) 1999-08-18
EP0936404A3 EP0936404A3 (fr) 2002-04-10

Family

ID=7857831

Family Applications (1)

Application Number Title Priority Date Filing Date
EP99102429A Withdrawn EP0936404A3 (fr) 1998-02-16 1999-02-09 Générateur de vapeur avec plusieurs faisceaux tubulaires

Country Status (2)

Country Link
EP (1) EP0936404A3 (fr)
DE (1) DE19806244A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2006107315A1 (fr) 2005-03-31 2006-10-12 Alstom Technology Ltd Ensemble flexible d'evaporation a une passe pour generateur de vapeur horizontal a recuperation de chaleur
RU2382936C2 (ru) * 2005-02-16 2010-02-27 Сименс Акциенгезелльшафт Парогенератор горизонтального типа

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3147742A (en) * 1962-12-03 1964-09-08 Gen Electric Multi-pressure waste heat boiler
CH532749A (de) * 1970-12-31 1973-01-15 Sulzer Ag Dampferzeuger
US4685426A (en) * 1986-05-05 1987-08-11 The Babcock & Wilcox Company Modular exhaust gas steam generator with common boiler casing
AT392683B (de) * 1988-08-29 1991-05-27 Sgp Va Energie Umwelt Abhitze-dampferzeuger
BE1005793A3 (fr) * 1992-05-08 1994-02-01 Cockerill Mech Ind Sa Chaudiere de recuperation de chaleur a circulation induite.

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
None

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2382936C2 (ru) * 2005-02-16 2010-02-27 Сименс Акциенгезелльшафт Парогенератор горизонтального типа
WO2006107315A1 (fr) 2005-03-31 2006-10-12 Alstom Technology Ltd Ensemble flexible d'evaporation a une passe pour generateur de vapeur horizontal a recuperation de chaleur

Also Published As

Publication number Publication date
DE19806244A1 (de) 1999-08-19
EP0936404A3 (fr) 2002-04-10

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