RESTORATION SAFETY CONFIRMATION TIME CONTROL DEVICE AND RESTORATION SAFETY CONFIRMATION TIME CONTROL METHOD
PROBLEM TO BE SOLVED: To provide a restoration safety confirmation time control device configured to determine completion of restoration safety confirmation with a time value not for each flow rate class but for each flow rate.SOLUTION: A completion time calculation unit 4 is configured to calculate...
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Format | Patent |
Language | English Japanese |
Published |
28.12.2017
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Abstract | PROBLEM TO BE SOLVED: To provide a restoration safety confirmation time control device configured to determine completion of restoration safety confirmation with a time value not for each flow rate class but for each flow rate.SOLUTION: A completion time calculation unit 4 is configured to calculate a completion time for each gas flow rate, with a gas flow rate at the time when a shutoff valve 2 closes. A lapse time measurement unit 7 is configured to measure a lapse time from the time when restoration safety confirmation is started. A comparison command unit 8 is configured to output a comparison command periodically. A comparison unit 9 is configured to, when the comparison command 8 outputs the comparison command, compare the completion time calculated by the completion time calculation unit 4 with the lapse time measured by the lapse time measurement unit 7, to determine completion of restoration safety confirmation in a case where the lapse time is equal to or more than the completion time.SELECTED DRAWING: Figure 1
【課題】流量区分ごとではなく流量ごとの時間値を用いて復帰安全確認の完了を決定する復帰安全確認時間制御装置を得る。【解決手段】完了時間算出部4は、遮断弁2が閉じる際のガス流量を用いて、ガス流量ごとの完了時間を算出する。経過時間測定部7は、復帰安全確認が開始されてからの経過時間を測定する。比較指示部8は、周期的に比較指示を出力する。比較部9は、比較指示部8により比較指示が出力されると、完了時間算出部4が算出した完了時間と経過時間測定部7が測定した経過時間とを比較し、当該経過時間が当該完了時間以上の場合に復帰安全確認の完了を決定する。【選択図】図1 |
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AbstractList | PROBLEM TO BE SOLVED: To provide a restoration safety confirmation time control device configured to determine completion of restoration safety confirmation with a time value not for each flow rate class but for each flow rate.SOLUTION: A completion time calculation unit 4 is configured to calculate a completion time for each gas flow rate, with a gas flow rate at the time when a shutoff valve 2 closes. A lapse time measurement unit 7 is configured to measure a lapse time from the time when restoration safety confirmation is started. A comparison command unit 8 is configured to output a comparison command periodically. A comparison unit 9 is configured to, when the comparison command 8 outputs the comparison command, compare the completion time calculated by the completion time calculation unit 4 with the lapse time measured by the lapse time measurement unit 7, to determine completion of restoration safety confirmation in a case where the lapse time is equal to or more than the completion time.SELECTED DRAWING: Figure 1
【課題】流量区分ごとではなく流量ごとの時間値を用いて復帰安全確認の完了を決定する復帰安全確認時間制御装置を得る。【解決手段】完了時間算出部4は、遮断弁2が閉じる際のガス流量を用いて、ガス流量ごとの完了時間を算出する。経過時間測定部7は、復帰安全確認が開始されてからの経過時間を測定する。比較指示部8は、周期的に比較指示を出力する。比較部9は、比較指示部8により比較指示が出力されると、完了時間算出部4が算出した完了時間と経過時間測定部7が測定した経過時間とを比較し、当該経過時間が当該完了時間以上の場合に復帰安全確認の完了を決定する。【選択図】図1 |
Author | MATSUURA YUHO KAMAKURA NOBUHITO |
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DocumentTitleAlternate | 復帰安全確認時間制御装置及び復帰安全確認時間制御方法 |
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Snippet | PROBLEM TO BE SOLVED: To provide a restoration safety confirmation time control device configured to determine completion of restoration safety confirmation... |
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SubjectTerms | MEASURING MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUIDLEVEL METERING BY VOLUME PHYSICS TESTING |
Title | RESTORATION SAFETY CONFIRMATION TIME CONTROL DEVICE AND RESTORATION SAFETY CONFIRMATION TIME CONTROL METHOD |
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