F - Mech Eng,Light,Heat,Weapons – 02 – C
Patent
F - Mech Eng,Light,Heat,Weapons
02
C
60/136
F02C 9/18 (2006.01) F02C 3/20 (2006.01) F02C 3/26 (2006.01) F02C 6/16 (2006.01)
Patent
CA 1248357
- 15 - Abstract The compressor (1) of the coaL-fired air storage gas turbine power station is connected by a main air duct (8) to a fLuidised bed combustion chamber (7) and an air storage cavern (6). There is one cLutch an each case (5 and 4, respectiveLy) between the compressor (1) and the eLectricaL machine (3) and between the Latter and the turbine (2). In order to maintain the fLuidised bed firing even in the case of pure pumping operations, a low Load air duct (12) with a shut off unit (14) is provided the Low Load air duct (12) connecting a pressure stage of the compressor (1) to the main air duct (8) at a position before the fLuidised bed combustion chamber (7). During pumping operations, the fLuidised bed continues to be fired at Low Load by cLosing a throttLe unit (11) in the section of the main air duct (8) Leading to the fLuidised bed combustion chamber (7) with simuLtaneousLy open shut- off units (10, 9 and 14 respectiveLy) in the section of the main air duct (8) Leading to the air storage cavern (6) and in the Low Load air duct (12). The combustion gases generated in the fLuidised bed combustion chamber (7) drive the turbine (2) which by means of the cLutch (4) designed as an overrunning cLutch, supports the eLectricaL machine (3), operating as a motor, in driving the compressor (1). (Figure 1)
486565
Bbc Brown Boveri & Company Limited
Ogilvy Renault Llp/s.e.n.c.r.l.,s.r.l.
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