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DEVICE AND METHOD FOR ESTIMATING FLOW RATE
To provide a flow rate estimating device that can continuously estimate the flow rate of water in a water pipe by a simpler configuration.SOLUTION: An electromagnetic valve 2 is arranged in a water pipe 1 with a water supply valve in a downstream part 1a, and a pressure sensor 3 is arranged on the downstream side of the electromagnetic valve 2. A controller 4 determines a flow rate vbased on the differences among a loss coefficient ζof a predetermined electromagnetic valve, a water pressure P0 measured by the pressure sensor 3 in advance when the flow rate is zero, and a water pressure P1 measured by the pressure sensor 3 when the electromagnetic valve 2 is opened at a predetermined degree.SELECTED DRAWING: Figure 2
【課題】より簡単な構成で、水道管内の水の流速を継続的に推定できる流速推定装置を提供する。【解決手段】下流部１ａに給水弁が設けられている水道管１に電磁弁２を配置し、電磁弁２の下流側に圧力センサ３を配置する。コントローラ４は、予め求められた電磁弁の損失係数ζvと、予め圧力センサ３により測定された流速ゼロの状態での水圧Ｐ０と、電磁弁２を所定の開度に絞った状態で圧力センサ３により測定された水圧Ｐ１の差とに基づいて流速ｖrを求める。【選択図】図２
DEVICE AND METHOD FOR ESTIMATING FLOW RATE
To provide a flow rate estimating device that can continuously estimate the flow rate of water in a water pipe by a simpler configuration.SOLUTION: An electromagnetic valve 2 is arranged in a water pipe 1 with a water supply valve in a downstream part 1a, and a pressure sensor 3 is arranged on the downstream side of the electromagnetic valve 2. A controller 4 determines a flow rate vbased on the differences among a loss coefficient ζof a predetermined electromagnetic valve, a water pressure P0 measured by the pressure sensor 3 in advance when the flow rate is zero, and a water pressure P1 measured by the pressure sensor 3 when the electromagnetic valve 2 is opened at a predetermined degree.SELECTED DRAWING: Figure 2
【課題】より簡単な構成で、水道管内の水の流速を継続的に推定できる流速推定装置を提供する。【解決手段】下流部１ａに給水弁が設けられている水道管１に電磁弁２を配置し、電磁弁２の下流側に圧力センサ３を配置する。コントローラ４は、予め求められた電磁弁の損失係数ζvと、予め圧力センサ３により測定された流速ゼロの状態での水圧Ｐ０と、電磁弁２を所定の開度に絞った状態で圧力センサ３により測定された水圧Ｐ１の差とに基づいて流速ｖrを求める。【選択図】図２
DEVICE AND METHOD FOR ESTIMATING FLOW RATE
流速推定装置及び流速推定方法
MURAKAMI YOTARO (author)
2019-06-20
Patent
Electronic Resource
Japanese
IPC:
G01P
MEASURING LINEAR OR ANGULAR SPEED, ACCELERATION, DECELERATION OR SHOCK
,
Messen der Linear- oder Winkelgeschwindigkeit, der Beschleunigung, der Verzögerung oder des Stoßes
/
E03B
Anlagen oder Verfahren zum Gewinnen, Sammeln oder Verteilen von Wasser
,
INSTALLATIONS OR METHODS FOR OBTAINING, COLLECTING, OR DISTRIBUTING WATER
/
G01F
Messen des Volumens, des Durchflussvolumens, des Massendurchflusses oder des Füllstandes
,
MEASURING VOLUME, VOLUME FLOW, MASS FLOW, OR LIQUID LEVEL
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