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A platform for research: civil engineering, architecture and urbanism
METHOD OF ESTIMATING CORRODED SPOT ON INNER SURFACE OF SEWER LINE AND CORRODED SPOT DETECTOR
To surely investigate a spot in a sewer line where an air stagnation occurs, and to reliability estimate a corroded spot on an inner surface of the sewer line based on the investigation.SOLUTION: A corroded spot detector 1 is put into a sewer line 31. No air stagnation is taking place since the sewer line is filled with sewage water 33 when the corroded spot detector 1 passes from L1 to L4. When the corroded spot detector 1 passes L5, an air stagnation 39 is taking place above the sewage water since sewage water 33 flows while the sewer line is not filled with the sewage water 33. No air stagnation is taking place since the sewer line is again filled with sewage water 33 when the corroded spot detector 1 reaches L6. The presence/absence of the air stagnation 39 is detected by a liquid level detection sensor 17 of the corroded spot detector 1.SELECTED DRAWING: Figure 4
【課題】下水管路の空気溜り発生個所を確実に調査でき、この調査結果に基づいて下水管路の内面腐食個所の信頼性の高い推定を行うことができるようにする。【解決手段】下水管路３１内に腐食個所検出装置１を投入する。腐食個所検出装置１がＬ１からＬ４を通過するときは下水３３が満管状態で流れているので空気溜りは発生していない。腐食個所検出装置１がＬ５を通過するときは下水３３が非満管状態で流れているので上方に空気溜り３９が発生している。腐食個所検出装置１がＬ６に到達するときには下水３３は再び満管状態で流れているので空気溜りは発生していない。空気溜り３９の有無は腐食個所検出装置１の液面検知センサ１７により検出される。【選択図】図４
METHOD OF ESTIMATING CORRODED SPOT ON INNER SURFACE OF SEWER LINE AND CORRODED SPOT DETECTOR
To surely investigate a spot in a sewer line where an air stagnation occurs, and to reliability estimate a corroded spot on an inner surface of the sewer line based on the investigation.SOLUTION: A corroded spot detector 1 is put into a sewer line 31. No air stagnation is taking place since the sewer line is filled with sewage water 33 when the corroded spot detector 1 passes from L1 to L4. When the corroded spot detector 1 passes L5, an air stagnation 39 is taking place above the sewage water since sewage water 33 flows while the sewer line is not filled with the sewage water 33. No air stagnation is taking place since the sewer line is again filled with sewage water 33 when the corroded spot detector 1 reaches L6. The presence/absence of the air stagnation 39 is detected by a liquid level detection sensor 17 of the corroded spot detector 1.SELECTED DRAWING: Figure 4
【課題】下水管路の空気溜り発生個所を確実に調査でき、この調査結果に基づいて下水管路の内面腐食個所の信頼性の高い推定を行うことができるようにする。【解決手段】下水管路３１内に腐食個所検出装置１を投入する。腐食個所検出装置１がＬ１からＬ４を通過するときは下水３３が満管状態で流れているので空気溜りは発生していない。腐食個所検出装置１がＬ５を通過するときは下水３３が非満管状態で流れているので上方に空気溜り３９が発生している。腐食個所検出装置１がＬ６に到達するときには下水３３は再び満管状態で流れているので空気溜りは発生していない。空気溜り３９の有無は腐食個所検出装置１の液面検知センサ１７により検出される。【選択図】図４
METHOD OF ESTIMATING CORRODED SPOT ON INNER SURFACE OF SEWER LINE AND CORRODED SPOT DETECTOR
下水管路の内面腐食個所の推定方法及び腐食個所検出装置
HASEGAWA KENJI (author) / IGAWA OSAMU (author)
2019-04-04
Patent
Electronic Resource
Japanese
IPC:
E03F
SEWERS
,
Abwasserkanäle
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