High-pressure well drilling throttling valve

The invention discloses a high-pressure well drilling throttling valve. A valve body, double flanges, a valve deck flange and a valve element assembly are included; the lower end of the valve body isfixedly connected with the double flanges; the upper end of the valve body is fixedly connected with...

Ausführliche Beschreibung

Gespeichert in:

Bibliographische Detailangaben
Hauptverfasser:	LIANG CHANGYOU, WEI HENGBIAO, MA JUNWEI, WEI ZIQIANG, NIU CHENYU, NIU YONGCHUN, LIU HUANDONG, YANG QINGCHAO
Format:	Patent
Sprache:	chi ; eng
Schlagworte:	ACTUATING-FLOATS BLASTING COCKS DEVICES FOR VENTING OR AERATING EARTH DRILLING EARTH DRILLING, e.g. DEEP DRILLING ENGINEERING ELEMENTS AND UNITS FIXED CONSTRUCTIONS GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS HEATING LIGHTING LUBRICATING MECHANICAL ENGINEERING MINING OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR ASLURRY OF MINERALS FROM WELLS TAPS THERMAL INSULATION IN GENERAL VALVES WEAPONS
Online-Zugang:	Volltext bestellen
Tags:	Tag hinzufügen Keine Tags, Fügen Sie den ersten Tag hinzu!

Beschreibung
Zusammenfassung:	The invention discloses a high-pressure well drilling throttling valve. A valve body, double flanges, a valve deck flange and a valve element assembly are included; the lower end of the valve body isfixedly connected with the double flanges; the upper end of the valve body is fixedly connected with the valve deck flange; a protective cap is fixedly connected to the upper end of the valve deck flange; a cavity capable of communicating an inlet channel with an outlet channel is formed in the valve body, and internally provided with a valve deck body and a valve base; a bush is arranged below the valve base; an ejecting rod is arranged at the lower end of the valve deck body; the valve element assembly matched with the valve base to control the connection and disconnection state of the cavity is arranged in the valve deck body; the upper end of the valve element assembly is fixedly connected with a valve rod joint through a valve rod pin; the valve rod joint is rotationally connected with the protective cap thro