METHOD FOR RESPONDING TO TRIP OF AUXILIARY BOILER DURING START OF BOILER UNIT

PROBLEM TO BE SOLVED: To allow start of a boiler unit, by securing a minimum value of turbine gland steam pressure needed to keep vacuum of a boiler unit, even in trip of an auxiliary boiler, in a boiler unit started by receiving supply of auxiliary steam from the auxiliary boiler. SOLUTION: In a st...

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Bibliographische Detailangaben
1. Verfasser:	TAMURA MASAMITSU
Format:	Patent
Sprache:	eng
Schlagworte:	BLASTING ENGINE PLANTS IN GENERAL ENGINE PLANTS NOT OTHERWISE PROVIDED FOR ENGINES USING SPECIAL WORKING FLUIDS OR CYCLES HEATING LIGHTING MACHINES OR ENGINES IN GENERAL MECHANICAL ENGINEERING METHODS OF STEAM GENERATION NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAMTURBINES STEAM ACCUMULATORS STEAM BOILERS STEAM ENGINE PLANTS STEAM ENGINES STEAM GENERATION WEAPONS
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Beschreibung
Zusammenfassung:	PROBLEM TO BE SOLVED: To allow start of a boiler unit, by securing a minimum value of turbine gland steam pressure needed to keep vacuum of a boiler unit, even in trip of an auxiliary boiler, in a boiler unit started by receiving supply of auxiliary steam from the auxiliary boiler. SOLUTION: In a step starting the boiler unit, when the auxiliary boiler supplying the auxiliary steam to the boiler unit is tripped (S1), supply of heating steam to a deaerator is stopped (S2) and supply of the auxiliary steam to outdoor facility is reduced, so that the turbine gland steam pressure necessary for keeping the vacuum of the boiler unit is secured to start the boiler unit. COPYRIGHT: (C)2008,JPO&INPIT