A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
CONNECTION PIPING
To provide connection piping capable of surely preventing backflow water from reaching upstream side piping when a backflow occurs.SOLUTION: The connection piping that connects an exhaust port of the upstream side piping from which the drainage is discharged and an inflow port where the drainage flows into a main pipe comprises a compressed air forming space in which pressure inside a pipe is increased to atmospheric pressure or higher when the drainage flows backward from the inlet port to the exhaust port, and a check valve formed on an upstream side of the compressed air forming space, between the exhaust port and the inflow portlet, and the exhaust port is provided at a position higher than the inflow port.SELECTED DRAWING: Figure 1
【課題】逆流発生時に逆流水が上流側配管まで達することを確実に防止することが可能な接続配管を提供する。【解決手段】排水が排出される上流側配管の排出口と、前記排水が本管に流入する流入口との間を接続する接続配管であって、前記排出口は、前記流入口よりも高さが高い位置に設けられ、前記排出口と前記流入口との間には、前記流入口から前記排出口に向かって前記排水が逆流した際に管内圧力が大気圧以上に高められる圧縮空気形成空間と、前記圧縮空気形成空間の上流側に形成される逆流防止弁と、を有する。【選択図】図１
CONNECTION PIPING
To provide connection piping capable of surely preventing backflow water from reaching upstream side piping when a backflow occurs.SOLUTION: The connection piping that connects an exhaust port of the upstream side piping from which the drainage is discharged and an inflow port where the drainage flows into a main pipe comprises a compressed air forming space in which pressure inside a pipe is increased to atmospheric pressure or higher when the drainage flows backward from the inlet port to the exhaust port, and a check valve formed on an upstream side of the compressed air forming space, between the exhaust port and the inflow portlet, and the exhaust port is provided at a position higher than the inflow port.SELECTED DRAWING: Figure 1
【課題】逆流発生時に逆流水が上流側配管まで達することを確実に防止することが可能な接続配管を提供する。【解決手段】排水が排出される上流側配管の排出口と、前記排水が本管に流入する流入口との間を接続する接続配管であって、前記排出口は、前記流入口よりも高さが高い位置に設けられ、前記排出口と前記流入口との間には、前記流入口から前記排出口に向かって前記排水が逆流した際に管内圧力が大気圧以上に高められる圧縮空気形成空間と、前記圧縮空気形成空間の上流側に形成される逆流防止弁と、を有する。【選択図】図１
CONNECTION PIPING
接続配管
MAEHARA NOBUMOTO (author) / IWAHARA HIROKI (author) / KOBAYASHI YUTAKA (author) / TAKUSAGAWA HIDEAKI (author)
2021-10-28
Patent
Electronic Resource
Japanese
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