Control method for deep peak regulation and shutdown of unit

The invention provides a control method for deep peak regulation and shutdown of a unit, and belongs to the technical field of power systems. The control method solves the problem that a large numberof resources are wasted in the deep peak regulation and shutdown process of an existing unit. The con...

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Bibliographische Detailangaben
Hauptverfasser:	NIE YE, CHEN LEI, YAN KAI, ZHANG WANQING, ZENG ZHIPAN, ZHOU JING, ZHANG JIAN, SI WENBO, YOU HUIFEI, GUO HONGTAO, MEI LING, BAI PEIQIANG
Format:	Patent
Sprache:	chi ; 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:	The invention provides a control method for deep peak regulation and shutdown of a unit, and belongs to the technical field of power systems. The control method solves the problem that a large numberof resources are wasted in the deep peak regulation and shutdown process of an existing unit. The control method for deep peak regulation and shutdown of the unit comprises the following steps that a,the unit enters deep peak regulation, a low-pressure bypass regulating valve and a high-pressure bypass regulating valve are opened, the opening degree of the low-pressure bypass regulating valve andthe opening degree of the high-pressure bypass regulating valve are controlled, the cold repressure is maintained to range from 1.2 MPa to 2.0 MPa, and the unit enters low-load operation; b, a steamturbine is opened, the rotating speed of an induced draft fan small machine and the air supply amount of an air feeder are adjusted and reduced, and the opening degree of the low-pressure bypass regulating valve and a high-press