JPS54101079A - Water service pump controller - Google Patents

Water service pump controller

Info

Publication number
JPS54101079A
JPS54101079A JP793978A JP793978A JPS54101079A JP S54101079 A JPS54101079 A JP S54101079A JP 793978 A JP793978 A JP 793978A JP 793978 A JP793978 A JP 793978A JP S54101079 A JPS54101079 A JP S54101079A
Authority
JP
Japan
Prior art keywords
discharge pressure
duct loss
coefficient
water service
flow rate
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
JP793978A
Other languages
Japanese (ja)
Inventor
Shunji Osada
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.)
Mitsubishi Electric Corp
Original Assignee
Mitsubishi Electric Corp
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 Mitsubishi Electric Corp filed Critical Mitsubishi Electric Corp
Priority to JP793978A priority Critical patent/JPS54101079A/en
Publication of JPS54101079A publication Critical patent/JPS54101079A/en
Pending legal-status Critical Current

Links

Abstract

PURPOSE: To correspond even to the change of duct loss, by obtaining the coefficient of duct loss from the discharge pressure and discharge flow rate of a water service pump.
CONSTITUTION: A computing element 20 obtains the coefficient K of duct loss from discharge pressure H from a discharge pressure gauge 14, flow rate Q from a flow meter 15 and actual head Ho and end pressure He from a set instrument 17, and a computing element 16 gains duct loss f(Q) from the coefficient K of duct loss and the flow rate Q. An adder 18 obtains discharge pressure, which makes end pressure constant, from duct loss F(Q) and commands Ho, He at the set instrument 17, and a controller 19 adjusts a control valve 13 by deviation between the output of the adder 18 and discharge pressure H.
COPYRIGHT: (C)1979,JPO&Japio
JP793978A 1978-01-26 1978-01-26 Water service pump controller Pending JPS54101079A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP793978A JPS54101079A (en) 1978-01-26 1978-01-26 Water service pump controller

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP793978A JPS54101079A (en) 1978-01-26 1978-01-26 Water service pump controller

Publications (1)

Publication Number Publication Date
JPS54101079A true JPS54101079A (en) 1979-08-09

Family

ID=11679471

Family Applications (1)

Application Number Title Priority Date Filing Date
JP793978A Pending JPS54101079A (en) 1978-01-26 1978-01-26 Water service pump controller

Country Status (1)

Country Link
JP (1) JPS54101079A (en)

Similar Documents

Publication Publication Date Title
JPS5399103A (en) Boiler feed water pump controller
JPS54101079A (en) Water service pump controller
JPS5523502A (en) Terminal pressure control system in wide-range pipe water supply equipment
JPS5537527A (en) Control method for pump speed
JPS54123703A (en) Method of controlling number of pump cabs
JPS557918A (en) Different-capacity pump quantity controlling apparatus
JPS53120669A (en) Tension controller for stretch bending former
JPS5471203A (en) Feed water flow and feed water pressure control device at transformer operation plant
JPS5341602A (en) Controlling device for one-through boiler
JPS5529023A (en) Controlling of pump operational number
JPS5490404A (en) Feed water flow rate controller
JPS5654983A (en) Controller for pressure in piping
JPS5664194A (en) Blade angle control system of movable blade pump
JPS54152201A (en) Water-intake control method
JPS57187715A (en) Control system for constant flow rate of gate valve
JPS5593912A (en) Deaerator pressure controller
JPS5477803A (en) Turbine bypass control system
JPS5330001A (en) Pump running method
JPS54103982A (en) Flow rate controller
JPS5749090A (en) Control system for reciprocating type compressor
JPS52100611A (en) Air feed and water level control apparatus of pressure water tank
JPS5596383A (en) Changer for number of operating pump
JPS55162000A (en) Method of operating multistage steam ejector
JPS536912A (en) Air supplying and water level regulating apparatus in pressure water tank
JPS54142601A (en) Method of starting pumps and adjusting their speeds