Device for adjusting set pressure value of steam safety valve

The invention particularly relates to a steam safety valve set pressure value adjusting device, which comprises a double-acting hydraulic jack, a pressure sensor, a pressure sensor, a pressure sensor, a pressure sensor, a pressure sensor and a pressure sensor, and is characterized in that the double...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	RUAN HANGZHE, LIU HUICHAO, HAN JIE, JIN FEI, YUAN JIANGTAO, GUO KEKE, PEI XUEQIANG
Format:	Patent
Sprache:	chi ; eng
Schlagworte:	ACTUATING-FLOATS BLASTING COCKS DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR DEVICES FOR VENTING OR AERATING ENGINEERING ELEMENTS AND UNITS FLUID-PRESSURE ACTUATORS FLUID-PRESSURE ACTUATORS, e.g. SERVO-MOTORS GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS HAULING HEATING HOISTING HOISTING, LIFTING, HAULING OR PUSHING, NOT OTHERWISE PROVIDEDFOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCEDIRECTLY TO THE SURFACE OF A LOAD HYDRAULICS OR PNEUMATICS IN GENERAL LIFTING LIGHTING MECHANICAL ENGINEERING PERFORMING OPERATIONS SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL TAPS THERMAL INSULATION IN GENERAL TRANSPORTING VALVES WEAPONS
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Beschreibung
Zusammenfassung:	The invention particularly relates to a steam safety valve set pressure value adjusting device, which comprises a double-acting hydraulic jack, a pressure sensor, a pressure sensor, a pressure sensor, a pressure sensor, a pressure sensor and a pressure sensor, and is characterized in that the double-acting hydraulic jack is mounted on an upper spring seat of a steam safety valve and is used for driving the upper spring seat to ascend or descend; the displacement sensor is mounted on the double-acting hydraulic jack and used for acquiring a displacement signal of an upper spring seat of the steam safety valve and sending the displacement signal to the PLC; the pressure sensor is mounted on the double-acting hydraulic jack and used for acquiring a pressure signal of an upper spring seat of the steam safety valve and sending the pressure signal to the PLC; the PLC is used for receiving the displacement signal sent by the displacement sensor and the pressure signal sent by the pressure sensor, setting target disp