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A platform for research: civil engineering, architecture and urbanism
DRAIN FORCE-FEED DEVICE
PROBLEM TO BE SOLVED: To prevent abnormal noise at pump start.SOLUTION: In a drain force-feed device 1, a submerged pump 6 installed in a storage tank 2 for storing drain water includes an impeller 4 operated by a submerged motor M, and a casing 5 surrounding the impeller 4. A pressure-feed pipe 10 for pressure-feeding the drain water is provided at a discharge port 8 of the casing 5, and a check valve 11 is provided in the pressure-feed pipe 10. A bypass pipe 13 is connected to a branch portion 10a between the discharge port 8 and the check valve 11 in the pressure-feed pipe 10, and an openable and closable solenoid valve 14 is provided in the bypass pipe 13. The solenoid valve 14 is opened at stopping of the submerged pump 6, and the solenoid valve 14 is closed after passing of predetermined delay time since operation start of the submerged pump 6.SELECTED DRAWING: Figure 1
【課題】ポンプ始動時に異音が発生しないようにした。【解決手段】排水圧送装置１は、排水を貯留する貯留タンク２内に設けた水中ポンプ６は、水中モータＭによって作動するインペラ４と、インペラ４を囲うケーシング５を設けた。ケーシング５の吐出口８に排水を圧送する圧送管１０を設け、圧送管１０に逆止弁１１を設けた。圧送管１０における吐出口８及び逆止弁１１の間の分岐部１０ａにバイパス管１３を接続し、バイパス管１３に開閉可能な電磁弁１４を設けた。水中ポンプ６の停止時に電磁弁１４を開弁させ、水中ポンプ６の運転始動時に所定の遅延時間を経て電磁弁１４を閉弁させた。【選択図】図１
DRAIN FORCE-FEED DEVICE
PROBLEM TO BE SOLVED: To prevent abnormal noise at pump start.SOLUTION: In a drain force-feed device 1, a submerged pump 6 installed in a storage tank 2 for storing drain water includes an impeller 4 operated by a submerged motor M, and a casing 5 surrounding the impeller 4. A pressure-feed pipe 10 for pressure-feeding the drain water is provided at a discharge port 8 of the casing 5, and a check valve 11 is provided in the pressure-feed pipe 10. A bypass pipe 13 is connected to a branch portion 10a between the discharge port 8 and the check valve 11 in the pressure-feed pipe 10, and an openable and closable solenoid valve 14 is provided in the bypass pipe 13. The solenoid valve 14 is opened at stopping of the submerged pump 6, and the solenoid valve 14 is closed after passing of predetermined delay time since operation start of the submerged pump 6.SELECTED DRAWING: Figure 1
【課題】ポンプ始動時に異音が発生しないようにした。【解決手段】排水圧送装置１は、排水を貯留する貯留タンク２内に設けた水中ポンプ６は、水中モータＭによって作動するインペラ４と、インペラ４を囲うケーシング５を設けた。ケーシング５の吐出口８に排水を圧送する圧送管１０を設け、圧送管１０に逆止弁１１を設けた。圧送管１０における吐出口８及び逆止弁１１の間の分岐部１０ａにバイパス管１３を接続し、バイパス管１３に開閉可能な電磁弁１４を設けた。水中ポンプ６の停止時に電磁弁１４を開弁させ、水中ポンプ６の運転始動時に所定の遅延時間を経て電磁弁１４を閉弁させた。【選択図】図１
DRAIN FORCE-FEED DEVICE
排水圧送装置
FUKUMOTO KATSUHISA (author) / KUROHARA HIROHIKO (author) / SUGIE TSUNEKI (author) / YAMAMOTO SHOZO (author)
2017-12-14
Patent
Electronic Resource
Japanese
IPC:
E03C
DOMESTIC PLUMBING INSTALLATIONS FOR FRESH WATER OR WASTE WATER
,
Hausinstallationen für Frisch- oder Abwasser
CONCRETE FORCE-FEED DEVICE AND CONCRETE FORCE-FEED METHOD
| European Patent Office | 2024