CONTROL DEVICE, CONTROL METHOD AND PUMP STATION

Japanese Patent JP2017036669

A

PROBLEM TO BE SOLVED: To reduce burden on a worker engaging in inspection, and improve accuracy of detecting abnormality or misdetection of measuring instruments.SOLUTION: A control device is used in a pump station that has a plurality of pumps provided in parallel and configured to pump up water from a suction side and discharge pumped-up water. The control device includes: a control unit that determines availability of operating the pumps, presence/absence of abnormality or a broken place by using measurement values measured by measuring instruments provided in the pump station; and a determination unit that determines abnormality of the measuring instrument or presence/absence of misdetection on the basis of measurement values, which should indicate the same value even when a water level on the suction side is changed, measured by three or more measuring instruments.SELECTED DRAWING: Figure 5

JP2004124814	FLOW RATE ESTIMATION METHOD FOR PUMP AND ITS APPARATUS
JPS63248998	OPERATION METHOD FOR PUMP

SENTODA SHINJI
YAMAKAWA YOSHIHIRO
UCHIDA YOSHIHIRO
NAKASHIO YUJI

JP2015156202A

February 16, 2017

August 06, 2015

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EBARA CORP

F04D15/00; F04B49/10

JPS59162395A	1984-09-13
JPH05264375A	1993-10-12
JPS6249727U	1987-03-27
JPH04194385A	1992-07-14

Seiji Ohno
Kobayashi Hideyoshi
Koji Morita
Shinji Kato
Mamoru Suzuki
Osamu Tsuda
Matsuno Chihiro
Seiichi Sakitani
Hiroshi Nomoto

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