Steam turbine by-pass system and low-pressure by-pass adjusting valve thereof

The utility model provides a low-pressure by-pass adjusting valve which comprises a valve body, a valve seat, valve element, a sliding sleeve and a protective filter screen, wherein the sliding sleeve is arranged outside the valve element, and the protective filter screen is arranged between the val...

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Bibliographische Detailangaben
Hauptverfasser:	LIU HE, YAN SHOUYING
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 PERFORMING OPERATIONS PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL SEPARATION TAPS THERMAL INSULATION IN GENERAL TRANSPORTING VALVES WEAPONS
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Beschreibung
Zusammenfassung:	The utility model provides a low-pressure by-pass adjusting valve which comprises a valve body, a valve seat, valve element, a sliding sleeve and a protective filter screen, wherein the sliding sleeve is arranged outside the valve element, and the protective filter screen is arranged between the valve seat and the sliding sleeve, and is arranged outside the valve element in a covering mode. One end of the protective filter screen is connected with the end face of the valve seat along the periphery of the end face of the valve seat, and the other end of the protective filter screen is connected with the end face of the sliding sleeve along the periphery of the end face of the sliding sleeve. The low-pressure by-pass adjusting valve filters steam flowing into a channel between the valve element and the valve seat through the protective filter screen, reduces metal fragments flowing through a valve seat combination face, reduces rate of untight seal of the combination face of the valve seat and the valve element