MALODOR PREVENTING DRAINAGE FACILITY

Japanese Patent JP2018096126

A

PROBLEM TO BE SOLVED: To provide a malodor preventing drainage facility that can efficiently withdraw wastewater remaining in a drainage pump and piping during inspection such as maintenance.SOLUTION: A pump facility provided according to one embodiment comprises: first and second pumps; a suction piping that is connected to an outflow port of a water tank and is branched at a branch portion to connect to suction ports of the first and second pumps and communicate the first and second pumps; a suction valve provided between the outflow port and the branch portion in the suction piping; first and second gate valves provided between the branch portion and each suction port of the first and second pumps in the suction piping; a discharge piping that connects to each discharge port of the first and second pumps and joins at a confluence portion; first and second check valves provided between the discharge ports of the first and second pumps and the confluence portion in the discharge piping; first and second pipings that are connected to the discharge piping at the first and second connection portions between each discharge port of the first and second pumps and the first and second check valves and are connected to an inside of the water tank; and first and second opening/closing valves provided in the first and second pipings.SELECTED DRAWING: Figure 1

IIJIMA KATSUJI

JP2016241993A

June 21, 2018

December 14, 2016

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EBARA CORP

E03F5/10; E03C1/122; E03F5/22

JP2010209872A	2010-09-24
JP2015014088A	2015-01-22
JP2016160768A	2016-09-05
JPS53102102U	1978-08-17
JP2002276021A	2002-09-25
JP2000097189A	2000-04-04

EP2014922A2

2009-01-14

Shinjiro Ono
Toru Miyamae
Yukio Kanegae
Ryota Suematsu
Makoto Watanabe

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