To provide a fossil fuel burning thermal power system including a carbon dioxide separation and recovery device, using extraction steam of a steam turbine for the carbon dioxide separation and recovery device, even when urgently stopping the carbon dioxide separation and recovery device, suppressing a load change on the fossil fuel burning thermal power system, continuously and stably operating, and increasing power generation output.
The power system has a second low-pressure turbine provided separately from a first low-pressure turbine of a main turbine and increases generation power as the whole plant by receiving its surplus steam in the second low-pressure turbine. A steam supply piping system safely sends air to a carbon dioxide separation and recovery device side even when a back-pressure turbine is stopped urgently in a system providing the back-pressure turbine and supplying supply steam while recovering energy of the same.
COPYRIGHT: (C)2011,JPO&INPIT
Osamu Matsuura
Sugiura Takashi
| JP4274846B2 |
Yuji Toda