Negative pressure pipeline opening and closing device and application thereof

The invention relates to the technical field of liquid discharge, and discloses a negative pressure pipeline opening and closing device and application thereof. The device comprises a plug for plugging a liquid outlet and a buoyancy piece connected with the plug, wherein the buoyancy piece comprises...

Ausführliche Beschreibung

Bibliographische Detailangaben

Hauptverfasser:	WANG RUI, CHEN LIANG, CHEN YUNYI, LIU ZUNTIAN, SHI JIAXIN, SHI JIANBING, CHEN LIGUO, HU YUQING, ZHANG WEI, YANG RUI
Format:	Patent
Sprache:	chi ; eng
Schlagworte:	ACTUATING-FLOATS BLASTING COCKS DEVICES FOR VENTING OR AERATING ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS HEATING LIGHTING MECHANICAL ENGINEERING TAPS THERMAL INSULATION IN GENERAL VALVES WEAPONS
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