JPS54100502A - Group control method of pumps - Google Patents

Group control method of pumps

Info

Publication number
JPS54100502A
JPS54100502A JP623978A JP623978A JPS54100502A JP S54100502 A JPS54100502 A JP S54100502A JP 623978 A JP623978 A JP 623978A JP 623978 A JP623978 A JP 623978A JP S54100502 A JPS54100502 A JP S54100502A
Authority
JP
Japan
Prior art keywords
pumps
reduce
time
minimize
control method
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
JP623978A
Other languages
Japanese (ja)
Inventor
Yasuyuki Kuroda
Masahiko Kashiwagi
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Hitachi Ltd
Original Assignee
Hitachi Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Hitachi Ltd filed Critical Hitachi Ltd
Priority to JP623978A priority Critical patent/JPS54100502A/en
Publication of JPS54100502A publication Critical patent/JPS54100502A/en
Pending legal-status Critical Current

Links

Abstract

PURPOSE: To reduce the total number of pumps put in operation and minimize the running cost of the system, by reducing the number of pumps in operation in earliest stages.
CONSTITUTION: A group of pumps 4 are turned on or off through a pump controller 2 according to a pumping schedule 1 and water in a pumping well 3 is pumped under pressure by the pumps 4 through a flow control valve 5. The number of pumps in operation at the current time is checked in accordance with the schedule. If the number of pumps scheduled at a time in the future may be less than that at the current time by one and in addition, the current number of pumps in operation may be reduced by one for feeding a required amount of water, the number of pumps in operation is reduced by one prior to the scheduled time. This can reduce the frequency of starting or stopping the pumps, minimize the total number of pumps put in operation and thus reduce the running cost of the pumps.
COPYRIGHT: (C)1979,JPO&Japio
JP623978A 1978-01-25 1978-01-25 Group control method of pumps Pending JPS54100502A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP623978A JPS54100502A (en) 1978-01-25 1978-01-25 Group control method of pumps

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP623978A JPS54100502A (en) 1978-01-25 1978-01-25 Group control method of pumps

Publications (1)

Publication Number Publication Date
JPS54100502A true JPS54100502A (en) 1979-08-08

Family

ID=11632947

Family Applications (1)

Application Number Title Priority Date Filing Date
JP623978A Pending JPS54100502A (en) 1978-01-25 1978-01-25 Group control method of pumps

Country Status (1)

Country Link
JP (1) JPS54100502A (en)

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