Global Patent Index - EP 2351914 A1

EP 2351914 A1 20110803 - Power plant and method of operating a power plant

Title (en)

Power plant and method of operating a power plant

Title (de)

Kraftwerk und Verfahren zum Betrieb eines Kraftwerks

Title (fr)

Centrale électrique et son procédé de fonctionnement

Publication

EP 2351914 A1 20110803 (EN)

Application

EP 10150416 A 20100111

Priority

EP 10150416 A 20100111

Abstract (en)

A fossil fuel fired power plant (PP) can provide an improved dynamic response by means of condensate stop and optionally with indirect firing. The power plant (PP) having a water steam cycle comprises six condensate preheaters (21-26) arranged in series for the preheating by heat exchange with steam extracted from the steam turbines (7-10). Steam extraction lines (23'-26') have a quick-action valve (23"-26") able to stop the extraction steam flow, whereby the additional steam flowing through the turbines enables a large load increase up to 10% within a short time of 10 seconds. In case of a coal-fired power plant (PP), the power plant (PP) comprises a supply silo (45) for pulverized coal that enables a quick increase in supply rate of coal to the boiler (1) and of the firing rate. This allows the load increase to be maintained over a longer time period.

IPC 8 full level

F01K 13/02 (2006.01); F01K 7/40 (2006.01); F22D 1/00 (2006.01); F22D 1/32 (2006.01)

CPC (source: EP)

F01K 7/40 (2013.01); F01K 13/02 (2013.01); F22D 1/003 (2013.01); F22D 1/325 (2013.01)

Citation (applicant)

Citation (search report)

Designated contracting state (EPC)

AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO SE SI SK SM TR

Designated extension state (EPC)

AL BA RS

DOCDB simple family (publication)

EP 2351914 A1 20110803; EP 2351914 B1 20160330; PL 2351914 T3 20160930

DOCDB simple family (application)

EP 10150416 A 20100111; PL 10150416 T 20100111