Nitrogen backfilling equipment for nuclear power plant motor shielding type main pump stator cavity

The invention aims to nitrogen backfilling equipment for nuclear power plant motor shielding type main pump stator cavity, which comprises a stator chamber vacuumizing module, a stator chamber nitrogen backfilling module and a data acquisition control module. The control end of the data acquisition...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	NA HONGWEI, WEN JIANNAN, ZHANG ZHENGXI, ZHOU XINGQIANG, WANG JIE, WANG JIANWEI, JIANG HAORAN, LIU YANG, TAO JIAN
Format:	Patent
Sprache:	chi ; eng
Schlagworte:	BLASTING HEATING LIGHTING MECHANICAL ENGINEERING NUCLEAR ENGINEERING NUCLEAR PHYSICS NUCLEAR POWER PLANT PHYSICS POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS PUMPS FOR LIQUIDS OR ELASTIC FLUIDS WEAPONS
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Beschreibung
Zusammenfassung:	The invention aims to nitrogen backfilling equipment for nuclear power plant motor shielding type main pump stator cavity, which comprises a stator chamber vacuumizing module, a stator chamber nitrogen backfilling module and a data acquisition control module. The control end of the data acquisition control module is connected with the control end of the stator chamber vacuumizing module and the control end of the stator chamber nitrogen backfilling module, and the input end of the stator chamber vacuumizing module is connected with a motor shielding type main pump vacuumizing pipeline. The output end of the stator chamber nitrogen backfilling module is connected with the motor shielding type main pump stator chamber. The data acquisition control module provides three overpressure prevention guarantees through interlocking control of a pressure transmitter and an electromagnetic valve, a nitrogen buffer tank and a pressure reducing valve, excessive overpressure is prevented from being generated in the nitrogen