STEAM VALVE DRIVING DEVICE

PROBLEM TO BE SOLVED: To provide a steam valve driving device capable of safely performing online maintenance.SOLUTION: In a steam valve driving device 20 according to one embodiment, a first solenoid valve 40, a second solenoid valve 60, a hydraulic pilot valve 70, a first stop valve 81, and a seco...

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Bibliographische Detailangaben
1. Verfasser:	IWASAKI TATSU
Format:	Patent
Sprache:	eng ; jpn
Schlagworte:	BLASTING DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR ENGINE PLANTS IN GENERAL FLUID-PRESSURE ACTUATORS FLUID-PRESSURE ACTUATORS, e.g. SERVO-MOTORS HEATING HYDRAULICS OR PNEUMATICS IN GENERAL LIGHTING MACHINES OR ENGINES IN GENERAL MECHANICAL ENGINEERING NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAMTURBINES STEAM ENGINES SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL WEAPONS
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Beschreibung
Zusammenfassung:	PROBLEM TO BE SOLVED: To provide a steam valve driving device capable of safely performing online maintenance.SOLUTION: In a steam valve driving device 20 according to one embodiment, a first solenoid valve 40, a second solenoid valve 60, a hydraulic pilot valve 70, a first stop valve 81, and a second stop valve 82 of one driving unit 21 out of a plurality of driving units 21 are provided inside a manifold block 90. The manifold block 90 is connected to a hydraulic cylinder 30 of the one driving unit 21 via a first pipe 91. In addition, the manifold block 90 is connected to a dump valve 50 of the driving unit 21 via a second pipe 92.SELECTED DRAWING: Figure 3 【課題】オンラインメンテナンスを安全に行うことができる蒸気弁駆動装置を提供する。【解決手段】実施の形態による蒸気弁駆動装置２０において、複数の駆動ユニット２１のうちの一の駆動ユニット２１の第１電磁弁４０、第２電磁弁６０、油圧パイロット弁７０、第１止め弁８１および第２止め弁８２は、マニホールドブロック９０内に設けられている。マニホールドブロック９０は、一の駆動ユニット２１の油圧シリンダ３０に、第１配管９１を介して連結されている。また、マニホールドブロック９０は、この駆動ユニット２１のダンプ弁５０に、第２配管９２を介して連結されている。【選択図】図３