Title:
マンホールとマンホールポンプ場発電システム
Document Type and Number:
Japanese Patent JP4878656
Kind Code:
B1
Abstract:
PROBLEM TO BE SOLVED: To provide a manhole having a compact structure which keeps off dirt in drainage, corresponding to the narrow inside of an existing conduit (baffle plate) attached to the outlet of influent water, and a power generating system at a manhole pump station.SOLUTION: A water sensor 9, an inflow-side electrically-driven three-way valve 8, and a fracture accelerator 10 are attached to the inflow part of an inflow pipe. Two after-acceleration electrically-driven three-way valves 12 are linked directly thereunder. Two pump-side electrically-driven three-way valves 13 are attached for a first pump and a second pump and piped with the after-acceleration electrically-driven three-way valves 12. A conventional induction motor-driven manhole pump is replaced with a hybrid manhole pump having a permanent magnet rotor. The hybrid manhole pump having a permanent magnet rotor works as a pump when voltage is applied, and works as a power generator when a vane wheel is rotated while generating power in proportion to the revolution.
Inventors:
Oga Wei
Application Number:
JP2011147802A
Publication Date:
February 15, 2012
Filing Date:
July 02, 2011
Export Citation:
Assignee:
OG Inc.
International Classes:
E02B9/00; E03F5/02; F03B17/06
Domestic Patent References:
| JP2007211433A | 2007-08-23 | |||
| JPS6140113A | 1986-02-26 | |||
| JP4132867B2 | 2008-08-13 |