EP0677646A1 - Intersection de deux conduits de gaz d'échappement essentiellement orientés d'une façon perpendiculaire - Google Patents

Intersection de deux conduits de gaz d'échappement essentiellement orientés d'une façon perpendiculaire Download PDF

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Publication number
EP0677646A1
EP0677646A1 EP95103293A EP95103293A EP0677646A1 EP 0677646 A1 EP0677646 A1 EP 0677646A1 EP 95103293 A EP95103293 A EP 95103293A EP 95103293 A EP95103293 A EP 95103293A EP 0677646 A1 EP0677646 A1 EP 0677646A1
Authority
EP
European Patent Office
Prior art keywords
line
exhaust gas
pipe
openings
exhaust
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.)
Ceased
Application number
EP95103293A
Other languages
German (de)
English (en)
Inventor
Klaus-Dieter Pohl
Jörg Paschke
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.)
GE Power Systems GmbH
Original Assignee
EVT Energie und Verfahrenstechnick 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 EVT Energie und Verfahrenstechnick GmbH filed Critical EVT Energie und Verfahrenstechnick GmbH
Publication of EP0677646A1 publication Critical patent/EP0677646A1/fr
Ceased legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01D—NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
    • F01D25/00—Component parts, details, or accessories, not provided for in, or of interest apart from, other groups
    • F01D25/30—Exhaust heads, chambers, or the like
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04H—BUILDINGS OR LIKE STRUCTURES FOR PARTICULAR PURPOSES; SWIMMING OR SPLASH BATHS OR POOLS; MASTS; FENCING; TENTS OR CANOPIES, IN GENERAL
    • E04H12/00—Towers; Masts or poles; Chimney stacks; Water-towers; Methods of erecting such structures
    • E04H12/28—Chimney stacks, e.g. free-standing, or similar ducts

Definitions

  • the invention relates to a merging of two exhaust gas-carrying lines arranged essentially perpendicular to one another.
  • EP 0 309 792 B1 discloses a gas turbine system with a downstream heat recovery steam generator, in which a junction for two exhaust gas-carrying lines is arranged.
  • the known merger brings together the exhaust gas flow from a high-pressure and low-pressure heat recovery steam generator connected downstream of a gas turbine and the exhaust gas flow from a bypass line which branches off before the aforementioned low-pressure heat recovery steam generator.
  • the two merged exhaust gas flows are discharged into the atmosphere through a chimney.
  • a disadvantage of the known merging is that the exhaust gas flows introduced in the two exhaust gas-carrying lines are not completely mixed in the merging and consequently strong "streak formation" occurs in the exhaust gas line arranged downstream of the merging.
  • the object of the invention is therefore to provide a combination which avoids the aforementioned disadvantages.
  • the jacket plate 6 of the closed line end 5 has a round shape, the center of which is preferably at a distance X axially parallel to the longitudinal axis of the line 2 and then tapers tangentially to the corresponding side wall of the line 3.
  • the jacket plate 6 of the merging 1 can be designed differently instead of partially round with a spiral curve and / or the openings 4 in the line 2 or be provided with opening cross sections of different sizes, which cause that escaping exhaust gas has the optimal exit speed for the mixing process.
  • the longitudinal axes of the exhaust gas-carrying lines 2 and 3 are preferably in the center of each other.
  • a gas turbine system with downstream heat recovery steam generator 11 is shown schematically. Only the gas turbine 9 of the gas turbine system is shown.
  • the waste heat steam generator 11 is connected to the gas turbine 9 through the flue gas duct 10.
  • the bypass line (exhaust gas line) 3 is arranged between the gas turbine 9 and the waste heat steam generator 11 and opens into the exhaust gas-carrying line 2 during the merging 1. This is arranged between the heat recovery steam generator 11 and the chimney 15.
  • control or shut-off device 13 and 14 is open and control or shut-off device 12 is closed.
  • the inventive design of the junction 1 mixes the two exhaust gas streams with different temperatures to form a homogeneous, common exhaust gas stream.
  • the control or shut-off devices 12, 13 and 14 are regulated or set according to the operating state of the heat recovery steam generator 11.
  • the first exhaust gas-conducting line 3 which is preferably deflected in the flow direction by 90 °, is guided after the deflection through the end plate 7 of the comprehensive line end 5 of the axially parallel, second exhaust gas-conducting line 2.
  • a plurality of openings 4 are arranged which are evenly distributed over the circumference of the line 3. Their dimensions are chosen so that the exiting exhaust gas has the optimal exit speed for the mixing process.
  • the fifth shows a junction 1, in which the first exhaust gas-carrying line 3 is closed with a front plate 7 after the deflection, which is preferably 90 °, with several in front of the front plate 7 being evenly distributed over the circumference of the line 3 Openings 4 are arranged and that the second exhaust gas-carrying line 2 comprises the first, deflected line 3 after the deflection and is parallel to the axis.
  • the dimensions of the openings 4 are chosen so that the exiting exhaust gas has the optimal exit temperature for the mixing process.
  • the openings 4 of the merging 1 corresponding to FIGS. 4 and 5 can of course be designed differently or have passage cross sections of different sizes.

Landscapes

  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Control Of Steam Boilers And Waste-Gas Boilers (AREA)
EP95103293A 1994-03-16 1995-03-08 Intersection de deux conduits de gaz d'échappement essentiellement orientés d'une façon perpendiculaire Ceased EP0677646A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4408925 1994-03-16
DE19944408925 DE4408925C2 (de) 1994-03-16 1994-03-16 Zusammenführung zweier im wesentlichen senkrecht zueinander angeordneter abgasführender Leitungen

Publications (1)

Publication Number Publication Date
EP0677646A1 true EP0677646A1 (fr) 1995-10-18

Family

ID=6512944

Family Applications (1)

Application Number Title Priority Date Filing Date
EP95103293A Ceased EP0677646A1 (fr) 1994-03-16 1995-03-08 Intersection de deux conduits de gaz d'échappement essentiellement orientés d'une façon perpendiculaire

Country Status (3)

Country Link
EP (1) EP0677646A1 (fr)
DE (1) DE4408925C2 (fr)
FI (1) FI951206A (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1380727A1 (fr) * 2002-07-08 2004-01-14 Siemens Aktiengesellschaft Centrale thermique à turbine à gaz avec cheminée de dérivation

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1093414A (en) * 1964-01-16 1967-11-29 Kloeckner Humboldt Deutz Ag Explosion-preventing, sound-damping arrangement for portable machine assemblies driven by gas turbines
GB2097476A (en) * 1981-04-27 1982-11-03 Exxon Production Research Co A method for using residue gas in gas turbines
WO1992011429A1 (fr) * 1990-12-19 1992-07-09 Siemens Aktiengesellschaft Agencement de cheminee pour une installation de turbines a gaz et a vapeur
EP0539067A1 (fr) * 1991-10-23 1993-04-28 European Gas Turbines Limited Système d'échappement pour turbine à gaz
WO1993016280A1 (fr) * 1992-02-13 1993-08-19 Allied-Signal Inc. Dispositif de refroidissement comportant un ensemble d'echappement

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4160559A (en) * 1977-06-06 1979-07-10 Van-Packer Co. Reinforce tee section for chimney
JP2554101B2 (ja) * 1987-09-28 1996-11-13 三菱重工業株式会社 排ガスボイラ

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1093414A (en) * 1964-01-16 1967-11-29 Kloeckner Humboldt Deutz Ag Explosion-preventing, sound-damping arrangement for portable machine assemblies driven by gas turbines
GB2097476A (en) * 1981-04-27 1982-11-03 Exxon Production Research Co A method for using residue gas in gas turbines
WO1992011429A1 (fr) * 1990-12-19 1992-07-09 Siemens Aktiengesellschaft Agencement de cheminee pour une installation de turbines a gaz et a vapeur
EP0539067A1 (fr) * 1991-10-23 1993-04-28 European Gas Turbines Limited Système d'échappement pour turbine à gaz
WO1993016280A1 (fr) * 1992-02-13 1993-08-19 Allied-Signal Inc. Dispositif de refroidissement comportant un ensemble d'echappement

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1380727A1 (fr) * 2002-07-08 2004-01-14 Siemens Aktiengesellschaft Centrale thermique à turbine à gaz avec cheminée de dérivation
US7089727B2 (en) 2002-07-08 2006-08-15 Siemens Aktiengesellschaft Gas turbine plant with an exhaust gas chimney

Also Published As

Publication number Publication date
FI951206A0 (fi) 1995-03-15
FI951206A (fi) 1995-09-17
DE4408925C2 (de) 1996-04-04
DE4408925A1 (de) 1995-09-21

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