Pneumatic valve control device

The utility model provides a pneumatic valve control device which comprises an electromagnetic valve, an executing mechanism and a gas source. The pneumatic valve control device is characterized in that the gas source comprises a normal-pressure gas source and a high-pressure gas source, the pneumat...

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Bibliographische Detailangaben
Hauptverfasser:	GONG ZHAOLIANG, WANG LYUYU, LIU GUIFENG, LU JIANYE
Format:	Patent
Sprache:	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 utility model provides a pneumatic valve control device which comprises an electromagnetic valve, an executing mechanism and a gas source. The pneumatic valve control device is characterized in that the gas source comprises a normal-pressure gas source and a high-pressure gas source, the pneumatic valve control device further comprises a first three-way reversing valve, a pressure reducing valve and a shut-off valve, wherein the first entrance end of the first three-way reversing valve is connected with the normal-pressure gas source, the second entrance end of the first three-way reversing valve is connected with the high-pressure gas source, the entrance end of the pressure reducing valve is connected with the exit end of the first three-way reversing valve, the exit end of the shut-off valve is connected with the entrance end of the pressure reducing valve, and the exit end of the shut-off valve is connected with the gas resource entrance end of the electromagnetic valve. The pneumatic valve control device can control over a failed valve continuously, effectively and in time, and relieve the failure processing pressure.