Oil pump alternation method and device in thrust bearing cooling system of water-turbine generator set

The invention provides an oil pump alternation method and device in a thrust bearing cooling system of a water-turbine generator set. The method comprises the steps that the thrust bearing cooling system of the water-turbine generator set comprises N oil pumps, and when it is detected that the water...

Ausführliche Beschreibung

Gespeichert in:

Bibliographische Detailangaben
Hauptverfasser:	JIAO FANXIAO, LIN YU, DONG YUNTAO, WEI BIAO, AI XIYANG, LI XUEJING, ZHOU YU, WANG HONGHAI, SUN HONG, YANG JIANCHENG, FU WENGANG, LEE HYUN, LI YONGHONG, WANG DAN, ZHANG PENGHUA
Format:	Patent
Sprache:	chi ; eng
Schlagworte:	BEARINGS BLASTING ELEMENTS OR CRANKSHAFT MECHANISMS ENGINEERING ELEMENTS AND UNITS FLEXIBLE SHAFTS GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS HEATING LIGHTING MACHINES OR ENGINES FOR LIQUIDS MECHANICAL ENGINEERING OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PRODUCING MECHANICAL POWER PUMPS PUMPS FOR LIQUIDS OR ELASTIC FLUIDS ROTARY BODIES OTHER THAN GEARING ELEMENTS SHAFTS THERMAL INSULATION IN GENERAL WEAPONS WIND, SPRING WEIGHT AND MISCELLANEOUS MOTORS
Online-Zugang:	Volltext bestellen
Tags:	Tag hinzufügen Keine Tags, Fügen Sie den ersten Tag hinzu!

Beschreibung
Zusammenfassung:	The invention provides an oil pump alternation method and device in a thrust bearing cooling system of a water-turbine generator set. The method comprises the steps that the thrust bearing cooling system of the water-turbine generator set comprises N oil pumps, and when it is detected that the water-turbine generator set is started, M oil pumps with the minimum operation times are obtained from the N oil pumps; according to the starting sequence of the M oil pumps, the M oil pumps are started in sequence and controlled to operate alternately; according to the difference of the relationship between the oil temperature of a thrust oil groove of the water-turbine generator set and a first temperature threshold value or the difference of the relationship between the temperature of any two thrust pads of the thrust bearing and a third temperature threshold value and a fourth temperature threshold value, the oil temperature of the thrust oil groove of the water-turbine generator set is calculated. Starting the next