A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
MEASUREMENT METHOD OF FLOW VELOCITY OF SEWAGE, MEASUREMENT METHOD OF FLOW RATE OF SEWAGE, AND MEASUREMENT SYSTEMS THEREOF
To provide a measurement method capable of simply and efficiently examining a flow rate of sewage.SOLUTION: A measurement method of a flow velocity of a sewage includes: a step of continuously measuring a temperature of the sewage at two points formed at a position spaced by a distance L within a sewage pipe; a step of calculating a cross correlation coefficient with data of the fixed elapsed time among temperature measurement data of the upstream side point and the data in the fixed elapsed time starting from each time when continuously shifted by the same time only from the start time of the fixed elapsed time among the temperature measurement data of the downstream side point; a step of obtaining a total time shifted from the start time when the cross correlation coefficient shows a maximum value and estimating the value dividing a distance L by a require time as an average flow velocity of the sewage; a step of measuring the water level of each sewage at the two points by the time zone by a water gauge; a step of obtaining a flow integration and its average value using each water level at the two points and a size of the inner part of the sewage pipe; and a step of estimating the value multiplied the average flow velocity of the sewage to the average flow integration as an average flow rate of the sewage.SELECTED DRAWING: Figure 9
【課題】下水の流量等を簡易にかつ効率よく調べることができる測定方法等を提供する。【解決手段】下水道管の内部で距離Ｌだけ離れた２地点の各下水の温度を温度計により同じ時間帯で連続して測定する工程と、上流側の地点の温度測定データのうち一定の経過時間内のデータと下流側の地点の温度測定データのうち一定の経過時間の開始時刻から同じ時間だけ次々にずらしたときの各時刻から始まる一定の経過時間内のデータとの相互相関係数を算出する工程と、相互相関係数が最大値を示すときの前記開始時刻からずらした時間の合計時間を所要時間として求め、距離Ｌを所要時間で除した値を下水の平均流速として推定する工程と、２地点の各下水の水位を水位計により前記時間帯で連続して測定する工程と、２地点の各水位と下水道管の内部の寸法を用いて流積とその平均値を求める工程と、平均流積に下水の平均流速を乗じた値を下水の平均流量として推定する工程を有する。【選択図】図９
MEASUREMENT METHOD OF FLOW VELOCITY OF SEWAGE, MEASUREMENT METHOD OF FLOW RATE OF SEWAGE, AND MEASUREMENT SYSTEMS THEREOF
To provide a measurement method capable of simply and efficiently examining a flow rate of sewage.SOLUTION: A measurement method of a flow velocity of a sewage includes: a step of continuously measuring a temperature of the sewage at two points formed at a position spaced by a distance L within a sewage pipe; a step of calculating a cross correlation coefficient with data of the fixed elapsed time among temperature measurement data of the upstream side point and the data in the fixed elapsed time starting from each time when continuously shifted by the same time only from the start time of the fixed elapsed time among the temperature measurement data of the downstream side point; a step of obtaining a total time shifted from the start time when the cross correlation coefficient shows a maximum value and estimating the value dividing a distance L by a require time as an average flow velocity of the sewage; a step of measuring the water level of each sewage at the two points by the time zone by a water gauge; a step of obtaining a flow integration and its average value using each water level at the two points and a size of the inner part of the sewage pipe; and a step of estimating the value multiplied the average flow velocity of the sewage to the average flow integration as an average flow rate of the sewage.SELECTED DRAWING: Figure 9
【課題】下水の流量等を簡易にかつ効率よく調べることができる測定方法等を提供する。【解決手段】下水道管の内部で距離Ｌだけ離れた２地点の各下水の温度を温度計により同じ時間帯で連続して測定する工程と、上流側の地点の温度測定データのうち一定の経過時間内のデータと下流側の地点の温度測定データのうち一定の経過時間の開始時刻から同じ時間だけ次々にずらしたときの各時刻から始まる一定の経過時間内のデータとの相互相関係数を算出する工程と、相互相関係数が最大値を示すときの前記開始時刻からずらした時間の合計時間を所要時間として求め、距離Ｌを所要時間で除した値を下水の平均流速として推定する工程と、２地点の各下水の水位を水位計により前記時間帯で連続して測定する工程と、２地点の各水位と下水道管の内部の寸法を用いて流積とその平均値を求める工程と、平均流積に下水の平均流速を乗じた値を下水の平均流量として推定する工程を有する。【選択図】図９
MEASUREMENT METHOD OF FLOW VELOCITY OF SEWAGE, MEASUREMENT METHOD OF FLOW RATE OF SEWAGE, AND MEASUREMENT SYSTEMS THEREOF
下水の流速の測定方法、下水の流量の測定方法およびそれらの測定システム
FUJIKI OSAMU (author) / FUJIWARA FUMIAKI (author) / IMAI SATOSHI (author)
2018-12-06
Patent
Electronic Resource
Japanese
IPC:
G01F
Messen des Volumens, des Durchflussvolumens, des Massendurchflusses oder des Füllstandes
,
MEASURING VOLUME, VOLUME FLOW, MASS FLOW, OR LIQUID LEVEL
/
E03F
SEWERS
,
Abwasserkanäle
/
G01P
MEASURING LINEAR OR ANGULAR SPEED, ACCELERATION, DECELERATION OR SHOCK
,
Messen der Linear- oder Winkelgeschwindigkeit, der Beschleunigung, der Verzögerung oder des Stoßes
SEWAGE FLOW RATE MEASUREMENT SYSTEM AND SEWAGE FLOW RATE MEASUREMENT METHOD
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