Studies on Siphonic Drainage System : Part1 Flow Characteristics and Basic Structures of Siphonic Drainage System

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  • サイホン排水システムに関する研究 : 第1報-サイホン排水システムの基本構成と流れ特性
  • サイホン ハイスイ システム ニ カンスル ケンキュウ(ダイ1ポウ)サイホン ハイスイ システム ノ キホン コウセイ ト ナガレ トクセイ

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The current drainage system is a gravity drainage system with a partially filled pipe flow. Furthermore, the drainage slopes and pipe diameters of horizontal drainage pipes are determined according to the flow rates. Therefore, the conveying performance is poor, and the piping flexibility is low. On the other hand, a siphonic drainage system is a gravity drainage system with a fully filled pipe flow using small diameter pipes. This system generates a siphon using the fully filled drainage flow. Therefore, it is not always necessary to provide piping slopes, and the conveying performance is strong, allowing for free design. In this study, we studied a siphonic drainage system to be applied to indoor gray water drainage systems. As the first report, we classified the basic structures and clarified the flow characteristics using full-scale experimental equipment.

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