Ball body and valve seat sealing pair of ball valve of coal-to-liquid equipment

The invention relates to a ball body and a valve seat sealing pair of a ball valve of coal-to-liquid equipment, comprising a ball body, an upstream valve seat and a downstream valve seat. The upstream valve seat and the downstream valve seat are connected; the ball body is arranged between the upstr...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	LU JUN, SUN FANGHONG, XU YINGHUA, SUN LESHEN, YE BAISHENG, LEI XUELIN
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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Beschreibung
Zusammenfassung:	The invention relates to a ball body and a valve seat sealing pair of a ball valve of coal-to-liquid equipment, comprising a ball body, an upstream valve seat and a downstream valve seat. The upstream valve seat and the downstream valve seat are connected; the ball body is arranged between the upstream valve seat and the downstream valve seat; the downstream valve seat is connected with the ball body by the sealing pair; the upstream inlet diameter of a ball body channel is less than the downstream outlet diameter; the outlet diameter is equal to nominal diameter; the channel is conical generally and forms a cone-shaped angle. The ball body and the valve seat sealing pair have the advantages of less abrasion and long service life.