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1. (WO2019045590) PRESSURE ACTUATED SEAL ARRANGEMENT
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Pub. No.: WO/2019/045590 International Application No.: PCT/RU2017/000636
Publication Date: 07.03.2019 International Filing Date: 31.08.2017
IPC:
F01D 11/00 (2006.01) ,F01D 11/02 (2006.01) ,F16J 15/16 (2006.01) ,F16J 15/44 (2006.01)
F MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
01
MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
D
NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
11
Preventing or minimising internal leakage of working fluid, e.g. between stages
F MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
01
MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
D
NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
11
Preventing or minimising internal leakage of working fluid, e.g. between stages
02
by non-contact sealings, e.g. of labyrinth type
F MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
16
ENGINEERING ELEMENTS OR UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
J
PISTONS; CYLINDERS; PRESSURE VESSELS IN GENERAL; SEALINGS
15
Sealings
16
between relatively-moving surfaces
F MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
16
ENGINEERING ELEMENTS OR UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
J
PISTONS; CYLINDERS; PRESSURE VESSELS IN GENERAL; SEALINGS
15
Sealings
44
Free-space packings
Applicants:
SIEMENS AKTIENGESELLSCHAFT SIEMENS AKTIENGESELLSCHAFT [DE/DE]; Werner-von-Siemens-Straβe, 1 Muenchen, Werner-von-Siemens-Straβe 1 80333 München, DE
Inventors:
MALININ, Vitaly Vladimirovich MALININ, Vitaly Vladimirovich; RU
NARAIANAMURTKHI, Kiran Kumar NARAIANAMURTKHI, Kiran Kumar; RU
Priority Data:
Title (EN) PRESSURE ACTUATED SEAL ARRANGEMENT
(FR) AGENCEMENT D'ÉTANCHÉITÉ ACTIONNÉ PAR PRESSION
Abstract:
(EN) The present invention provides a pressure actuated seal arrangement (1) to regulate flow of a working medium flow from a high pressure area (2) to a low pressure area (3) through a gap (6) is presented. The pressure actuated seal arrangement (1) comprises a first part (4) and a second part (5), wherein the first part and the second part are located opposite to each other and arranged in such way that there is a gap (6) formed between the first part and the second part., The first part (4) and the second part (6) can be configured to be relatively rotatable parts, e.g. a rotor and a stator, or relatively stationary parts, e.g. various housing parts or cooling air plenums etc, within the rotating machine, e.g. within a gas turbine. The second part (5) comprises at least one flexible sealing arrangement (7) with at least one sealing element (8) extending in the gap (6). The at least one flexible sealing arrangement (7) is interposed between a high pressure area (2) and a low pressure area (3). According to the present invention at least one flexible sealing arrangement (7) further comprises a group of elastic elements (9). The group of elastic elements (9) is arranged in the high pressure area (2), and is adapted to move the at least one sealing element (8) depending on a pressure drop between the high pressure area (2) and the low pressure area (3) to regulate the extension of the gap (6).
(FR) La présente invention concerne un agencement d'étanchéité actionné par pression (1) pour réguler l'écoulement d'un flux de milieu de travail d'une zone à haute pression (2) à une zone à basse pression (3) à travers un espace. L'agencement d'étanchéité actionné par pression (1) comprend une première partie (4) et une seconde partie (5). La première partie et la seconde partie sont disposées d'une manière opposée l'une de l'autre et agencées de telle sorte qu'il y ait un espace (6) formé entre elles. La première partie (4) et la seconde partie (6) peuvent être configurées pour être des parties relativement rotatives, par exemple un rotor et un stator, ou des parties relativement fixes, par exemple diverses parties de boîtier ou des plénums d'air de refroidissement, etc, à l'intérieur de la machine rotative, par exemple à l'intérieur d'une turbine à gaz. La seconde partie (5) comprend au moins un agencement d'étanchéité souple (7) avec au moins un élément d'étanchéité (8) s'étendant dans l'espace (6). L'au moins un agencement d'étanchéité souple (7) est interposé entre une zone haute pression (2) et une zone basse pression (3). Selon la présente invention, au moins un agencement d'étanchéité souple (7) comprend en outre un groupe d'éléments élastiques (9). Le groupe d'éléments élastiques (9) est disposé dans la zone haute pression (2), et est conçu pour déplacer l'au moins un élément d'étanchéité (8) en fonction d'une chute de pression entre la zone haute pression (2) et la zone basse pression (3) pour réguler l'extension de l'espace (6).
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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, JO, 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: English (EN)
Filing Language: English (EN)