SE410641B - GAS TURBIN VALVE DEVICE - Google Patents

GAS TURBIN VALVE DEVICE

Info

Publication number
SE410641B
SE410641B SE7802285A SE7802285A SE410641B SE 410641 B SE410641 B SE 410641B SE 7802285 A SE7802285 A SE 7802285A SE 7802285 A SE7802285 A SE 7802285A SE 410641 B SE410641 B SE 410641B
Authority
SE
Sweden
Prior art keywords
valve
valves
housing
air
turbine
Prior art date
Application number
SE7802285A
Other languages
Swedish (sv)
Other versions
SE7802285L (en
Inventor
B Johansson
J Wikner
Original Assignee
Stal Laval Turbin Ab
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 Stal Laval Turbin Ab filed Critical Stal Laval Turbin Ab
Priority to SE7802285A priority Critical patent/SE410641B/en
Priority to CH73379A priority patent/CH634633A5/en
Priority to DE19792906393 priority patent/DE2906393A1/en
Priority to GB7906992A priority patent/GB2017219B/en
Publication of SE7802285L publication Critical patent/SE7802285L/en
Publication of SE410641B publication Critical patent/SE410641B/en

Links

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
    • F01D21/00—Shutting-down of machines or engines, e.g. in emergency; Regulating, controlling, or safety means not otherwise provided for
    • F01D21/04—Shutting-down of machines or engines, e.g. in emergency; Regulating, controlling, or safety means not otherwise provided for responsive to undesired position of rotor relative to stator or to breaking-off of a part of the rotor, e.g. indicating such position
    • F01D21/06—Shutting-down
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02C—GAS-TURBINE PLANTS; AIR INTAKES FOR JET-PROPULSION PLANTS; CONTROLLING FUEL SUPPLY IN AIR-BREATHING JET-PROPULSION PLANTS
    • F02C3/00—Gas-turbine plants characterised by the use of combustion products as the working fluid
    • F02C3/20—Gas-turbine plants characterised by the use of combustion products as the working fluid using a special fuel, oxidant, or dilution fluid to generate the combustion products
    • F02C3/205—Gas-turbine plants characterised by the use of combustion products as the working fluid using a special fuel, oxidant, or dilution fluid to generate the combustion products in a fluidised-bed combustor
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02C—GAS-TURBINE PLANTS; AIR INTAKES FOR JET-PROPULSION PLANTS; CONTROLLING FUEL SUPPLY IN AIR-BREATHING JET-PROPULSION PLANTS
    • F02C9/00—Controlling gas-turbine plants; Controlling fuel supply in air- breathing jet-propulsion plants
    • F02C9/16—Control of working fluid flow
    • F02C9/18—Control of working fluid flow by bleeding, bypassing or acting on variable working fluid interconnections between turbines or compressors or their stages

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Fluidized-Bed Combustion And Resonant Combustion (AREA)
  • Engine Equipment That Uses Special Cycles (AREA)
  • Control Of Turbines (AREA)

Description

10 15 20 25 55 gvsozzss-z i f 2 ligt uppfinningen. Fig 5 och 4 visar två, olika konstruktiva, utformningar av ventilen enligt uppfinningen. mg 1 visar en gasflfirbinanläggfsng omfattande en kompressor 1, gester-bin 2 och två. brännkamrar 3. Tryckluften leds. från kompressorn till en varje b omgivande mantel 4 genom ett yttre rör 5 som omger ett inre rör 6 som leder de heta gaserna från brännkammaren till turbinen. 10 15 20 25 55 gvsozzss-z i f 2 according to the invention. Figures 5 and 4 show two, different constructive, designs of the valve according to the invention. mg 1 shows a gas turbine plant comprising a compressor 1, gesture bin 2 and two. combustion chambers 3. The compressed air is conducted. from the compressor to one each b surrounding jacket 4 through an outer tube 5 surrounding an inner tube 6 leading them the hot gases from the combustion chamber to the turbine.

Som ovan nämnts måste man vid användningen av en virvelbäddsbrännkannnare kunna avstänga. denna. helt och hållet från anläggningeni tillfälleav störningar, såsom exempelvis lastbortfall eller haveri. Samtidigt måste kompressor-luften föras direkt till gasturbinen, dels för att inte bromsa upp kompressorn, dels för att kyla turbinen. Principen härför framgår av fig 2, där avspärrnings- ventilerna 7 ooh B har ineattsi luft- respektive gasledningen 5 respektive 6, . medan förbigångsventilen9 har insatta mellan nämnda två. ledningar. vid betjäningen av dessa ventiler gäller att ventilerna. 7 och 8 inte får stängas av innan förbigåxzgaventilen 9 har öppnats för att undvika häftiga uppbromsningar av luftströmmenpuFör att säkra. detta koordineras manöverorganen för ventilerna lämpligen så. att ventilen 9' öppnas innan man börjar stänga av ventileras. 7 och e. ' e p Vidare måste brännkammaren kunna avlestas efter avstängningen, vilket kan ske medelst en speciell ventil 10, en s k dumperventil, som leder till anläggningens skorsten eller avg-anledning. Vid haveri är detta den enda möjligloeten. Är det däremot bara fråga., om laatbortfall kan brännkanmaren långsamt avlastes till tur- binen om: bara luft- och bränsletillförseln är spärrade. Härvid kan man utnyttja. det förhållandet att det vid aktuella. dimensioner och temperaturer ändå. är e svårt att göra ventilerna 7 och 8 helt täta utan risk för att de kan klänmas fast i stängt läge. Man utformar därför dessa ventiler med ett visst glapp och säkrar att ventilen 8 ständigt har större glapp än ventilen 7. Pâ. så. vis komer brännkammaren att långsamt avlastas över ventilen 8, medan lufttillförselzx över venmen 7 m1- försumbar.As mentioned above, when using a fluidized bed burner burner, one must be able to shut down. this. completely from the plant in the event of disturbances, such as cargo loss or breakdown. At the same time must compressor air carried directly to the gas turbine, partly so as not to slow down the compressor, partly to cool the turbine. The principle for this is shown in Fig. 2, where the barrier the valves 7 ooh B have ineattsi the air and gas line 5 and 6, respectively, . while the bypass valve 9 is inserted between said two. management. when operating these valves, the valves apply. 7 and 8 must not be closed off before the bypass valve 9 has been opened to avoid violent braking of airflowpuTo secure. this coordinates the actuators of the valves suitably so. that the valve 9 'is opened before starting to switch off is ventilated. 7 and e. 'e Furthermore, the combustion chamber must be able to be read after shutting down, which can happen by means of a special valve 10, a so-called dumper valve, which leads to the plant chimney or avg reason. In the event of an accident, this is the only possible option. Is it on the other hand, just ask., if late loss, the combustion chamber can be slowly relieved to bees if: only the air and fuel supply are blocked. You can take advantage of this. the fact that it at current. dimensions and temperatures anyway. is It is difficult to make valves 7 and 8 completely tight without the risk of them becoming clamped fixed in closed position. These valves are therefore designed with a certain play and ensures that the valve 8 always has a larger play than the valve 7. On. so. show comer the combustion chamber to be slowly relieved over the valve 8, while the air supply is over venmen 7 m1- negligible.

Den konstruktiva. utformningen av ventilkombirzationen enligt uppfinningen framgår av fig 3, där ventiler-na är placerade i ett hus 11 på. en vinkelböjning på. koaxial- ledningen S, 6.The constructive. the design of the valve combination according to the invention appears of Fig. 3, where the valves are located in a housing 11 on. an angular bend of. coaxial- line S, 6.

Ventiler-na. 7 och 8 utformas lämpligen som dubbla klaffventiler och som framgår av ritningen går den inre gasledningen 6 fram i 'en obruten böjning, medan luft- ledningen 5 avbryts så. attventilen 7 mynnar fritt i huset 11.Ventiler-na. 7 and 8 are suitably designed as double flap valves and as shown of the drawing, the inner gas line 6 advances in an unbroken bend, while the air line 5 is then disconnected. the valve 7 opens freely into the housing 11.

Claims (6)

10 15 5 Förbigångsventilen 9 är placerad i ett litet cylindriskt hus 12 som placerat mellan ytterväggen av huset 11 och en inre mantel 13-som omger höjningen på ledningen 6. Utformningen av ventilen 9 och huset 12 framgår närmare av fig 4. För att begränsa. dimensionerna. på ventilen 9 och därmed på huset 11 delas ven- tilen 9 upp i flera ventiler, såsom också. framgår av fig 4.. Fig 4 visar som nämnts en litet annorlunda utformning av ventilkombinationen, varvid huset 11 i huvudsak inskränker sig till en utvidylixig på. luftledningen 5 för att ge plats för förbigångsventilerna 9 och luftventilen 7. ventilen 9 består av ett oylindriskt hus 12 med en öppning 14 på. uppströmssidan sett i förhållande till luftetrömmen. Själva ventilen består av en klaff 15 som sitter i en mellanvägg 16» i ventilhuset 12. Förutom att fungera som förbigåzzgsventiler vid snabbstopp kan en eller flera av ventilerna. 9 användas som reglerventiler för att vid dellast låta. en del av luften från kompressorn passera förbi brännkammaren och därmed vid konstant varvtal på turbinen styra ned luften till brännkammaren i relation till en reducerad bränslemäxmgd. ' I fig 4 har dessutom visats manöverdon 17 och 18 för ventiler-na. PATEINPKRAVThe bypass valve 9 is located in a small cylindrical housing 12 located between the outer wall of the housing 11 and an inner jacket 13 which surrounds the elevation of the conduit 6. The design of the valve 9 and the housing 12 is shown in more detail in Fig. 4. To limit. the dimensions. on the valve 9 and thus on the housing 11, the valve 9 is divided into several valves, as well. can be seen from Fig. 4. Fig. 4 shows, as mentioned, a slightly different design of the valve combination, wherein the housing 11 is substantially limited to an extension. the air line 5 to make room for the bypass valves 9 and the air valve 7. the valve 9 consists of an non-cylindrical housing 12 with an opening 14 on it. the upstream side seen in relation to the air flow. The valve itself consists of a flap 15 which is located in a partition wall 16 »in the valve housing 12. In addition to functioning as bypass valves at quick stops, one or more of the valves can. 9 can be used as control valves to sound at partial load. some of the air from the compressor passes the combustion chamber and thus at a constant speed on the turbine directs the air down to the combustion chamber in relation to a reduced amount of fuel. Fig. 4 also shows actuators 17 and 18 for the valves. PATEINPKRAV 1. Ventilanordning för förbikoppling av brännkammsre (3) i gasturbinanlägg- ning, k ä. n n e t e o k n' a, d därav, att anordningen omfattar ventiler (7, 8) för avspärrníng av brännkammaren från turbin' (2) och kompressor (1) och en förbigångsventil (9) som direkt förbinder kompressorns avgångssida med 'turbi- nens ingångssidanA valve device for bypassing the combustion chamber tube (3) in a gas turbine plant, characterized in that the device comprises valves (7, 8) for shutting off the combustion chamber from the turbine (2) and the compressor (1) and a bypass valve (9) which directly connects the outlet side of the compressor to the inlet side of the turbine 2. Ventilanordning. enligt patentkrav 1, k ä. n n e t e o k n a d därav, att nämnda ventiler (7, 8, 9) är utformade som klaffventiler.2. Valve device. according to claim 1, characterized in that said valves (7, 8, 9) are designed as flap valves. 5. Ventilsnordning enligt patentkrav 2, där luftledningen (5) från kompres- eom (1) till braznmmmmaren (5) omger gasledningen (6) från brmuæmaren un turbinen (2), k ä n n e t e o k n e. d därav, att gasledningens ventil (8) är anordnad inne i gasledningen, medan de båda. andra ventilerna (7, 9) är anord- nade i ett ledningarna omgivande hus (11). I - 7802285 -2 vaozzas-2 4Valve assembly according to claim 2, wherein the air line (5) from the compressor (1) to the fuel nozzle (5) surrounds the gas line (6) from the boiler and the turbine (2), characterized in that the gas line valve (8) ) are arranged inside the gas line, while the two. the other valves (7, 9) are arranged in a housing (11) surrounding the pipes. I - 7802285 -2 vaozzas-2 4 4.' vantiianaraaing annat patantnav 5, .k a n n a t a a k n a a härav, att bada laaningama (5, 6) är böjda 1 vinkel vialpaaaagan av nämnda nua (11) aan att luftlaanmgana (5) vantu (7) a: anaranaa i an förlängning av aan ana gra- nen av aan tögaa lurtlaauingan.4. ' vantiianaraaing another patent hub 5, .kannataaknaa of this, to bathe laaningama (5, 6) are bent 1 angle vialpaaaagan of said nua (11) aan att luftlaanmgana (5) vantu (7) a: anaranaa i an extension of aan ana gran av aan tögaa lurtlaauingan. 5. Ventilanondning enligt patentldav 3, k ä n n e t e c k n a. d därav, att namaa fërbigangavantil (9) omfattar atmmatana an naffvantn (15) anordnad rett motsvarande cylindrisicl: hus (12) placerat radiellt mellan väggarna. i de båda. ledningarna (5, 6).5. A valve breather according to claim 3, characterized in that the bypass valve (9) comprises the breathing mats of the hub glove (15) arranged directly corresponding to the cylindrical housing (12) placed radially between the walls. in both. the wires (5, 6). 6. Ventilanordning enligt patentlaav 2, k ä. n n e t e c k n a. d därav, att nämnda klaffventiler (7, 8) i luft- och gasledningen är utformade med ett visst glapp i stängt läge, varvid gaaladningens (6) ventil (8) uppvisar större glapp än luftlaanmgana (5) ventil (7). ANFÖRDA PUBLIKATIONER:6. Valve device according to patent law 2, characterized in that said flap valves (7, 8) in the air and gas line are formed with a certain play in the closed position, the valve (8) of the gale charge (6) having a larger play than the air locks (5) valve (7). MENTIONED PUBLICATIONS:
SE7802285A 1978-03-01 1978-03-01 GAS TURBIN VALVE DEVICE SE410641B (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
SE7802285A SE410641B (en) 1978-03-01 1978-03-01 GAS TURBIN VALVE DEVICE
CH73379A CH634633A5 (en) 1978-03-01 1979-01-25 VALVE ASSEMBLY FOR SHIFTING A COMBUSTOR IN A GAS TURBINE PLANT.
DE19792906393 DE2906393A1 (en) 1978-03-01 1979-02-20 VALVE ARRANGEMENT FOR SHUNTING A COMBUSTION CHAMBER IN A GAS TURBINE SYSTEM
GB7906992A GB2017219B (en) 1978-03-01 1979-02-28 Gas turbine plant

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE7802285A SE410641B (en) 1978-03-01 1978-03-01 GAS TURBIN VALVE DEVICE

Publications (2)

Publication Number Publication Date
SE7802285L SE7802285L (en) 1979-09-02
SE410641B true SE410641B (en) 1979-10-22

Family

ID=20334131

Family Applications (1)

Application Number Title Priority Date Filing Date
SE7802285A SE410641B (en) 1978-03-01 1978-03-01 GAS TURBIN VALVE DEVICE

Country Status (4)

Country Link
CH (1) CH634633A5 (en)
DE (1) DE2906393A1 (en)
GB (1) GB2017219B (en)
SE (1) SE410641B (en)

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5058373A (en) * 1989-01-26 1991-10-22 General Electric Company Overspeed protection for a gas turbine/steam turbine combined cycle
US5069030A (en) * 1989-01-26 1991-12-03 General Electric Company Overspeed protection for a gas turbine/steam turbine combined cycle
US5199256A (en) * 1989-01-26 1993-04-06 General Electric Company Overspeed protection for a gas turbine/steam turbine combined cycle
EP0379930B1 (en) * 1989-01-26 1993-05-26 General Electric Company Overspeed protection for a gas turbine/steam turbine combined cycle
US5099643A (en) * 1989-01-26 1992-03-31 General Electric Company Overspeed protection for a gas turbine/steam turbine combined cycle
US5042247A (en) * 1989-01-26 1991-08-27 General Electric Company Overspeed protection method for a gas turbine/steam turbine combined cycle
US5042246A (en) * 1989-11-06 1991-08-27 General Electric Company Control system for single shaft combined cycle gas and steam turbine unit
US5301499A (en) * 1990-06-28 1994-04-12 General Electric Company Overspeed anticipation and control system for single shaft combined cycle gas and steam turbine unit
DE4339724C1 (en) * 1993-11-22 1995-01-19 Siemens Ag Gas fitting
DE4446395C2 (en) * 1994-12-23 1999-05-06 Janich Gmbh & Co Swing flap for hot gas pipelines
DE19541889A1 (en) * 1995-11-10 1997-05-15 Asea Brown Boveri Power plant
DE19741197C1 (en) 1997-09-18 1999-01-28 Siemens Ag Adaptor fitting for stationary gas turbine plant

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2040048A1 (en) * 1970-08-12 1972-02-17 Plessey Co Ltd Loaders for internal combustion engines
SE364756B (en) * 1972-07-07 1974-03-04 Stal Laval Turbin Ab
DE7418534U (en) * 1973-06-08 1974-10-24 Brown Boveri Sulzer Turbomaschinen Ag Closed gas turbine compressor arrangement with a relief device
DE2421708A1 (en) * 1974-05-04 1975-11-20 Robert Von Dipl Ing Linde Gas feed to an engine with external combustion - has regulated air by pass, and fuel metering unit
SE402797B (en) * 1975-09-12 1978-07-17 Stal Laval Turbin Ab COMBINED ENGINE AND GAS TURBINE SYSTEM

Also Published As

Publication number Publication date
SE7802285L (en) 1979-09-02
GB2017219A (en) 1979-10-03
DE2906393A1 (en) 1979-09-06
GB2017219B (en) 1982-07-14
DE2906393C2 (en) 1991-02-28
CH634633A5 (en) 1983-02-15

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