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1. (WO2017204229) COMBUSTOR AND GAS TURBINE
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Pub. No.: WO/2017/204229 International Application No.: PCT/JP2017/019278
Publication Date: 30.11.2017 International Filing Date: 23.05.2017
IPC:
F23R 3/42 (2006.01) ,F23R 3/10 (2006.01) ,F23R 3/12 (2006.01) ,F23R 3/16 (2006.01)
F MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
23
COMBUSTION APPARATUS; COMBUSTION PROCESSES
R
GENERATING COMBUSTION PRODUCTS OF HIGH PRESSURE OR HIGH VELOCITY, e.g. GAS-TURBINE COMBUSTION CHAMBERS
3
Continuous combustion chambers using liquid or gaseous fuel
42
characterised by the arrangement or form of the flame tubes or combustion chambers
F MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
23
COMBUSTION APPARATUS; COMBUSTION PROCESSES
R
GENERATING COMBUSTION PRODUCTS OF HIGH PRESSURE OR HIGH VELOCITY, e.g. GAS-TURBINE COMBUSTION CHAMBERS
3
Continuous combustion chambers using liquid or gaseous fuel
02
characterised by the air-flow or gas-flow configuration
04
Air inlet arrangements
10
for primary air
F MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
23
COMBUSTION APPARATUS; COMBUSTION PROCESSES
R
GENERATING COMBUSTION PRODUCTS OF HIGH PRESSURE OR HIGH VELOCITY, e.g. GAS-TURBINE COMBUSTION CHAMBERS
3
Continuous combustion chambers using liquid or gaseous fuel
02
characterised by the air-flow or gas-flow configuration
04
Air inlet arrangements
10
for primary air
12
inducing a vortex
F MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
23
COMBUSTION APPARATUS; COMBUSTION PROCESSES
R
GENERATING COMBUSTION PRODUCTS OF HIGH PRESSURE OR HIGH VELOCITY, e.g. GAS-TURBINE COMBUSTION CHAMBERS
3
Continuous combustion chambers using liquid or gaseous fuel
02
characterised by the air-flow or gas-flow configuration
16
with devices inside the flame tube or the combustion chamber to influence the air or gas flow
Applicants: MITSUBISHI HITACHI POWER SYSTEMS, LTD.[JP/JP]; 3-1, Minatomirai 3-Chome, Nishi-ku, Yokohama-shi, Kanagawa 2208401, JP
Inventors: TAMURA Issei; JP
SAITO Keijiro; JP
MIYAMOTO Kenji; JP
XUE Yaohua; JP
Agent: MORI Ryuichirou; JP
SHIGA Masatake; JP
TAKAHASHI Norio; JP
YAMASAKI Tetsuo; JP
MATSUNUMA Yasushi; JP
Priority Data:
2016-10233123.05.2016JP
Title (EN) COMBUSTOR AND GAS TURBINE
(FR) CHAMBRE DE COMBUSTION ET TURBINE À GAZ
(JA) 燃焼器、ガスタービン
Abstract:
(EN) A combustor (3) is provided with: a fuel nozzle that extends along an axial line Ac; an inner cylinder (41) that has a cylindrical shape and covers the fuel nozzle; and a tail cylinder (42) that has a cylindrical shape extending toward the leading end (41S) side of the inner cylinder (41) and forms a cooling air passage (6), through which air from the outside is introduced, between the tail cylinder and the outer peripheral surface of the leading end (41S) of the inner cylinder (41), wherein the radial-direction position of the leading end of the inner cylinder (41) partially varies in the circumferential direction. Thus, a vortex is formed on the downstream side of the leading end (41S) of the inner cylinder (41). This vortex can expedite mixing of the air supplied through the cooling air passage (6) with a combustion gas.
(FR) La présente invention concerne une chambre de combustion (3) qui est pourvue de : une buse de carburant qui s'étend le long d'une ligne axiale Ac ; un cylindre interne (41) qui a une forme cylindrique et recouvre la buse de carburant ; et un cylindre arrière (42) qui a une forme cylindrique s'étendant vers le côté d'extrémité avant (41S) du cylindre interne (41) et forme un passage d'air de refroidissement (6), à travers lequel l'air provenant de l'extérieur est introduit, entre le cylindre arrière et la surface périphérique externe de l'extrémité avant (41S) du cylindre interne (41), la position dans la direction radiale de l'extrémité avant du cylindre interne (41) variant partiellement dans la direction circonférentielle. Par conséquent, un tourbillon est formé sur le côté aval de l'extrémité avant (41S) du cylindre interne (41). Ce tourbillon peut accélérer le mélange de l'air alimenté à travers le passage d'air de refroidissement (6) avec un gaz de combustion.
(JA) 燃焼器(3)は、軸線Acに沿って延びる燃料ノズルと、燃料ノズルを覆う筒状をなす内筒(41)と、内筒(41)の先端部(41S)の外周面との間で外部からの空気が導入される冷却空気流路(6)を形成するとともに、内筒(41)の先端(41S)側に向かって延びる筒状をなす尾筒(42)と、を備え、内筒(41)の先端の径方向位置が周方向で部分的に異なっている。これにより、内筒(41)の先端(41S)の下流側に渦が形成される。この渦により、冷却空気流路(6)を通じて供給された空気と、燃焼ガスとの混合を促進することができる。
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Designated States: AE, AG, AL, AM, AO, AT, AU, AZ, BA, BB, BG, BH, BN, BR, BW, BY, BZ, CA, CH, CL, CN, CO, CR, CU, CZ, DE, DJ, DK, DM, DO, DZ, EC, EE, EG, ES, FI, GB, GD, GE, GH, GM, GT, HN, HR, HU, ID, IL, IN, IR, IS, JP, KE, KG, KH, KN, KP, KR, KW, KZ, LA, LC, LK, LR, LS, LU, LY, MA, MD, ME, MG, MK, MN, MW, MX, MY, MZ, NA, NG, NI, NO, NZ, OM, PA, PE, PG, PH, PL, PT, QA, RO, RS, RU, RW, SA, SC, SD, SE, SG, SK, SL, SM, ST, SV, SY, TH, TJ, TM, TN, TR, TT, TZ, UA, UG, US, UZ, VC, VN, ZA, ZM, ZW
African Regional Intellectual Property Organization (ARIPO) (BW, GH, GM, KE, LR, LS, MW, MZ, NA, RW, SD, SL, ST, SZ, TZ, UG, ZM, ZW)
Eurasian Patent Office (AM, AZ, BY, KG, KZ, RU, TJ, TM)
European Patent Office (EPO) (AL, AT, BE, BG, CH, CY, CZ, DE, DK, EE, ES, FI, FR, GB, GR, HR, HU, IE, IS, IT, LT, LU, LV, MC, MK, MT, NL, NO, PL, PT, RO, RS, SE, SI, SK, SM, TR)
African Intellectual Property Organization (BF, BJ, CF, CG, CI, CM, GA, GN, GQ, GW, KM, ML, MR, NE, SN, TD, TG)
Publication Language: Japanese (JA)
Filing Language: Japanese (JA)