Global Patent Index - EP 1015737 A1

EP 1015737 A1 2000-07-05 - A PROCEDURE AND A DEVICE FOR CONTROLLING THE FLOW OF COMBUSTION AIR IN A PFBC PLANT

Title (en)

A PROCEDURE AND A DEVICE FOR CONTROLLING THE FLOW OF COMBUSTION AIR IN A PFBC PLANT

Title (de)

VERFAHREN UND VORRICHTUNG ZUR KONTROLLE DER ABGASE IN EINER VERBRENNUNGS-ENERGIEZENTRALE MIT FLUIDBETTTECHNIK

Title (fr)

PROCEDE ET DISPOSITIF POUR GERER LE FLUX D'AIR DE COMBUSTION DANS UNE CENTRALE A COMBUSTION EN LIT FLUIDISE SOUS PRESSION

Publication

EP 1015737 A1 (EN)

Application

EP 97948079 A

Priority

  • SE 9702029 W
  • SE 9604580 A

Abstract (en)

[origin: WO9826159A1] A procedure and a device for controlling the flow of combustion air in a PFBC plant which, besides combustion chamber (1) and pressure tank (2), includes a dual shaft gas turbine (3, 5, 6, 7) comprising a low-pressure compressor (3) and a low-pressure turbine (7) connected by a first shaft and a high-pressure compressor (5) and a high-pressure turbine (6) connected by a second shaft, wherein air is drawn into the low-pressure compressor (3), conducted further to the high-pressure compressor (5), and on into the pressure tank (2) and combustion chamber (1), after which the return flow in the form of combustion air containing particles is conducted to the high-pressure turbine (6) and onto the low-pressure turbine (7) from whence the return air is discharged to the surroundings, the combustion air containing particles being prevented from finding its way radially in towards the bearings of the turbines (6, 7) by barrier air being pressed into the middle of the high-pressure turbine (6).

IPC 1-7 (main, further and additional classification)

F01D 11/04; F02C 7/28

IPC 8 full level (invention and additional information)

F02C 3/26 (2006.01); F01D 11/04 (2006.01); F01K 23/06 (2006.01); F02C 9/16 (2006.01)

CPC (invention and additional information)

F01K 23/062 (2013.01); F02C 9/16 (2013.01)

Citation (search report)

See references of WO 9826159A1

Designated contracting state (EPC)

AT BE CH DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE

EPO simple patent family

WO 9826159 A1 19980618; CN 1184916 A 19980617; EP 1015737 A1 20000705; JP 2001505974 A 20010508; KR 20000057526 A 20000925; SE 508085 C2 19980824; SE 9604580 D0 19961212; SE 9604580 L 19980613

INPADOC legal status


2001-01-31 [18W] WITHDRAWN

- Ref Legal Event Code: 18W

- Date of withdrawal: 20001129

2000-07-05 [17P] REQUEST FOR EXAMINATION FILED

- Ref Legal Event Code: 17P

- Effective date: 19990712

2000-07-05 [AK] DESIGNATED CONTRACTING STATES:

- Ref Legal Event Code: AK

- Designated State(s): AT BE CH DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE