EP0764813B1 - Chaudière de récupération, utilisée notamment derrière une turbine à gaz - Google Patents

Chaudière de récupération, utilisée notamment derrière une turbine à gaz Download PDF

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Publication number
EP0764813B1
EP0764813B1 EP96114357A EP96114357A EP0764813B1 EP 0764813 B1 EP0764813 B1 EP 0764813B1 EP 96114357 A EP96114357 A EP 96114357A EP 96114357 A EP96114357 A EP 96114357A EP 0764813 B1 EP0764813 B1 EP 0764813B1
Authority
EP
European Patent Office
Prior art keywords
heating surface
water
medium
collector
down pipe
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
Application number
EP96114357A
Other languages
German (de)
English (en)
Other versions
EP0764813A1 (fr
Inventor
Wilhelmus Cornelis Maria Boom
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.)
NEM BV
Original Assignee
NEM BV
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 NEM BV filed Critical NEM BV
Publication of EP0764813A1 publication Critical patent/EP0764813A1/fr
Application granted granted Critical
Publication of EP0764813B1 publication Critical patent/EP0764813B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime 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

Definitions

  • the invention relates to a heat recovery steam generator, in particular in the Use behind a gas turbine, with at least one drum in one Natural circulation system consisting of at least one downpipe, at least a horizontal evaporator heating surface including at least one with the inlet pipe connected to the downpipe and at least one Outlet collector and at least one with the outlet collector connected riser pipe, the evaporator heating surface in one ascending hot gas flow is arranged.
  • Such a heat recovery steam generator is known from EP 0 357 590 B1.
  • the Evaporator heating surface is dependent on the medium to be evaporated or the Mixture of medium to be evaporated and evaporated medium from below flows upwards, d. H. in direct current.
  • a steam start is required to start the water circulation in the steam generator Ensure or accelerate the start-up phase.
  • Injector arranged, the partial flow of water with the desired Feeds the flow direction into the down pipe system and / or riser pipe system.
  • a device for feeding steam is Steam-water mixture, gases such as nitrogen or the like in the riser pipe system intended.
  • a lockable connecting line is provided as Traction aid between at least one entry and exit collector each Evaporator heating surface a lockable connecting line is provided.
  • This object is achieved in that the evaporator heating surface in Counterflow to the hot gas flow from the medium to be evaporated or Medium / medium vapor mixture is flowed through and the inlet header with an understroke of the downpipe is connected.
  • the Water space 1a of a drum 1 via at least one downpipe existing downpipe system 2 with sub-stroke 3 an inlet header 4 Water supplied.
  • the water enters one in one Evaporator heating surface 5 arranged in dashed lines with dashed lines K their horizontally extending tubes 5a (horizontal Evaporator heating surface).
  • the water or the flows in the heating surface 5 Forming water-steam mixture from top to bottom through the horizontally extending tubes 5a and then enters one below the Entry collector 4 lying collector 6 and is from this over a riser pipe system 7 consisting of at least one riser pipe Water chamber 1a of the drum 1 is supplied.
  • the heating surface 5 is in one arranged rising hot gas stream HG, d. H. the water or the Water-steam mixture flows in countercurrent to the rising hot gas HG down.
  • the first steam is in the bottom tubes of tubes 5a of the evaporator heating surface.
  • the Steam can enter the riser pipe system 7 directly and ensures that required density difference between the content of the or the downpipes Down pipe system 2 and the content of the riser pipe or pipes Riser pipe system 7.
  • the Lower stroke 3 to below the position level of the outlet header 6.
  • the tubes 5a are provided with fins 8.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Sustainable Development (AREA)
  • Sustainable Energy (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Engine Equipment That Uses Special Cycles (AREA)
  • Control Of Steam Boilers And Waste-Gas Boilers (AREA)

Claims (2)

  1. Générateur de vapeur à chaleur perdue, notamment utilisé en aval d'une turbine à gaz,
    comportant au moins un ballon situé dans un système de circulation naturelle constitué par au moins un tube de descente, au moins une surface de chauffe horizontale d'évaporation y compris au moins un collecteur d'entrée relié au tube de descente et au moins un collecteur de sortie, et au moins un tube montant relié au collecteur de sortie, la surface de chauffe d'évaporation étant disposée dans un courant montant de gaz chauds,
    caractérisé en ce que la surface de chauffe d'évaporation (5) est parcourue, à contre-courant du courant de gaz chauds (HG), par le milieu à évaporer ou le mélange milieu / vapeur du milieu, et le collecteur d'entrée (4) est relié à une branche inférieure (3) du tube de descente (2).
  2. Générateur de vapeur à chaleur perdue selon la revendication 1, caractérisé en ce que la branche inférieure (3) du tube de descente (2) s'étend au-dessous du plan dans lequel est disposé le collecteur de sortie (6).
EP96114357A 1995-09-20 1996-09-07 Chaudière de récupération, utilisée notamment derrière une turbine à gaz Expired - Lifetime EP0764813B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19534802 1995-09-20
DE19534802A DE19534802A1 (de) 1995-09-20 1995-09-20 Abhitzedampferzeuger, insbesondere in der Verwendung hinter einer Gasturbine

Publications (2)

Publication Number Publication Date
EP0764813A1 EP0764813A1 (fr) 1997-03-26
EP0764813B1 true EP0764813B1 (fr) 1999-07-28

Family

ID=7772606

Family Applications (1)

Application Number Title Priority Date Filing Date
EP96114357A Expired - Lifetime EP0764813B1 (fr) 1995-09-20 1996-09-07 Chaudière de récupération, utilisée notamment derrière une turbine à gaz

Country Status (4)

Country Link
EP (1) EP0764813B1 (fr)
AT (1) ATE182665T1 (fr)
DE (2) DE19534802A1 (fr)
ES (1) ES2136925T3 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2015140361A1 (fr) 2014-03-21 2015-09-24 Foster Wheeler Energia, S.L.U. Cycle d'évaporation d'un générateur de vapeur à circulation naturelle raccordé à un conduit vertical pour un flux ascendant de gaz

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1401317C3 (de) * 1960-02-18 1975-01-16 Nordlund, Karl Folke, Jönköping (Schweden) Dampferzeugungsanlage mit Naturumlauf
AT392683B (de) * 1988-08-29 1991-05-27 Sgp Va Energie Umwelt Abhitze-dampferzeuger
AT394100B (de) * 1988-09-14 1992-01-27 Sgp Va Energie Umwelt Abhitze-dampferzeuger
GB2296964B (en) * 1995-01-13 1998-12-16 Stork Ketels Bv Installation for generating steam

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2015140361A1 (fr) 2014-03-21 2015-09-24 Foster Wheeler Energia, S.L.U. Cycle d'évaporation d'un générateur de vapeur à circulation naturelle raccordé à un conduit vertical pour un flux ascendant de gaz

Also Published As

Publication number Publication date
EP0764813A1 (fr) 1997-03-26
DE19534802A1 (de) 1997-04-10
ATE182665T1 (de) 1999-08-15
ES2136925T3 (es) 1999-12-01
DE59602527D1 (de) 1999-09-02

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