WATER SUPPLY SYSTEM
PROBLEM TO BE SOLVED: To supply sanitary water in an emergency, without requiring a large installation space.SOLUTION: A water communication pipe 3 is connected to a water distributing pipe 1 of a water supply system via backflow prevention means, and a water supply pipe 6 connected to a water suppl...
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Zusammenfassung: | PROBLEM TO BE SOLVED: To supply sanitary water in an emergency, without requiring a large installation space.SOLUTION: A water communication pipe 3 is connected to a water distributing pipe 1 of a water supply system via backflow prevention means, and a water supply pipe 6 connected to a water supply facility is also connected. The water communication pipe 3 comprises a first water communication pipe 31 and a second water communication pipe 32, and is branched off into a plurality of pipelines on the downstream side of the backflow prevention means. The first water communication pipe 31 is connected to a relay pipe 35 via a switching valve 7 on the downstream side, and the relay pipe 35 is connected to the water supply pipe 6. In normal time, the switching valve 7 cuts off the connection with an air source 8, and communicates the first water communication pipe 31 and the relay pipe 35. Water from the water distributing pipe 1 is supplied to the water supply pipe via the water communication pipe 3. To the contrary, in an emergency, the switching valve 7 cuts off the connection with the relay pipe 35, and communicates the first water communication pipe 31 and the air source 8. The water existing in the first water communication pipe 31 and the second water communication pipe 32 is supplied to the water supply pipe 6 with pressurized air supplied to the first water communication pipe 31 from the air source 8 as water supply pressure.SELECTED DRAWING: Figure 1
【課題】 大きな設置スペースを必要とすることなく、非常時に衛生的な水を供給する。【解決手段】 給水系統の配水管1に逆流防止手段を介して通水管3が接続され、さらに給水設備に繋がる給水管6が接続される。通水管3は、第1通水管31および第2通水管32を備えて、逆流防止手段の下流側で複数の管路に分岐されている。第1通水管31は、下流側で切替弁7を介して中継管35に接続され、中継管35が給水管6に接続されている。平常時、切替弁7は空気源8との接続を遮断し、第1通水管31と中継管35とを連通している。配水管1からの水は通水管3を経て給水管へ供給される。これに対し、非常時には、切替弁7は中継管35との接続を遮断し、第1通水管31と空気源8とを連通する。空気源8から第1通水管31へ供給される加圧空気を給水圧として、第1通水管31および第2通水管32に存する水が給水管6へ供給される。【選択図】 図1 |
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