GAS SHUT-OFF DEVICE

To provide a gas shut-off device capable of determining whether a forced shutoff input is on and when the ON state continues the bidirectional valve is not allowed to perform return processing.SOLUTION: The gas shut-off device includes: a flow rate detection part 11; a flow rate calculation part 12;...

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Bibliographische Detailangaben
Hauptverfasser:	ASADA SHOJI, OTANI TAKAHISA, TANAKA KYOTARO, FUKAZAWA TAKUYA, TAMURA ITARU, UNO NAGATAKE, YASUI MASAHIRO, ENOMOTO MITSUNOBU, SAKUMA HIROHISA, KUMEMURA HIDEAKI, SATO TAKANOBU, YAMAZAKI TAKUYA, OWAKU TAKASHI, TSUCHIYA SOTA, SHIOTA KAZUKI, IWAMOTO RYUJI, KOBA YASUO
Format:	Patent
Sprache:	eng ; jpn
Schlagworte:	MEASURING MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUIDLEVEL METERING BY VOLUME PHYSICS TESTING
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Beschreibung
Zusammenfassung:	To provide a gas shut-off device capable of determining whether a forced shutoff input is on and when the ON state continues the bidirectional valve is not allowed to perform return processing.SOLUTION: The gas shut-off device includes: a flow rate detection part 11; a flow rate calculation part 12; abnormality determination part 13; a valve drive part 14; a bidirectional valve 15; a recovery input section 16; a recovery possibility determination part 17; a forced shutoff multiple determination part 18; and a forced shutoff input part 19. When the forced on/off signal of the forced shutoff input part 19 is off, the recovery possibility determination part receives a return signal and outputs a valve open signal.SELECTED DRAWING: Figure 1 【課題】強制遮断入力がオン状態かを判別し、オン状態が継続しているときには双方向弁に復帰処理を実施させないガス遮断装置を提供する。【解決手段】流量検出部１１、流量算出部１２、異常判定部１３、弁駆動部１４、双方向弁１５、復帰入力部１６、復帰可否判定部１７、強制遮断複数判定部１８、強制遮断入力部１９とを備え、強制遮断入力部１９の強制オンオフ信号がオフの場合に、復帰可否判定部が復帰信号を受け付けて弁開栓信号を出力することができる。【選択図】図１