JPS5584885A - Opening and closing method of bypass pipe at pump - Google Patents

Opening and closing method of bypass pipe at pump

Info

Publication number
JPS5584885A
JPS5584885A JP15650178A JP15650178A JPS5584885A JP S5584885 A JPS5584885 A JP S5584885A JP 15650178 A JP15650178 A JP 15650178A JP 15650178 A JP15650178 A JP 15650178A JP S5584885 A JPS5584885 A JP S5584885A
Authority
JP
Japan
Prior art keywords
variable speed
speed pump
flow
pump
open
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
JP15650178A
Other languages
Japanese (ja)
Inventor
Motoaki Tanaka
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.)
Toyo Electric Manufacturing Ltd
Original Assignee
Toyo Electric Manufacturing 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 Toyo Electric Manufacturing Ltd filed Critical Toyo Electric Manufacturing Ltd
Priority to JP15650178A priority Critical patent/JPS5584885A/en
Publication of JPS5584885A publication Critical patent/JPS5584885A/en
Pending legal-status Critical Current

Links

Abstract

PURPOSE: To open and close in conformity with the actual characteristic of a variable speed pump by a system wherein an opening and closing device of the bypass passage of a variable speed pump is actuated with a flow signal transmitted from a flow relay detecting only the variable speed pump water flow.
CONSTITUTION: A flow relay 8 is provided, for example, for a variable speed pump 1 discharge pipe in order to detect only the water pumped by the variable speed pump 1, the allowable minimum flow of the variable speed pump 1 being directly detected to actuate the solenoid valve V of the bypass pipe 6. The open and close section of the bypass passage 6 comprising the flow relay 8 and the solenoid valve V is detecting the water flow of the variable speed pump 1 to actuate to open/ close the bypass passage 6 during detecting the allowable minimum flow, which is free from interlocking the other part of the pump system with a signal exchange.
COPYRIGHT: (C)1980,JPO&Japio
JP15650178A 1978-12-20 1978-12-20 Opening and closing method of bypass pipe at pump Pending JPS5584885A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP15650178A JPS5584885A (en) 1978-12-20 1978-12-20 Opening and closing method of bypass pipe at pump

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP15650178A JPS5584885A (en) 1978-12-20 1978-12-20 Opening and closing method of bypass pipe at pump

Publications (1)

Publication Number Publication Date
JPS5584885A true JPS5584885A (en) 1980-06-26

Family

ID=15629133

Family Applications (1)

Application Number Title Priority Date Filing Date
JP15650178A Pending JPS5584885A (en) 1978-12-20 1978-12-20 Opening and closing method of bypass pipe at pump

Country Status (1)

Country Link
JP (1) JPS5584885A (en)

Similar Documents

Publication Publication Date Title
JPS5786575A (en) Operation for hydraulic turbine or pump hydraulic turbine
JPS5584885A (en) Opening and closing method of bypass pipe at pump
JPS5679936A (en) Leakage detecting method
JPS54101084A (en) Control method of atomic power turbine plant and their system
JPS55134772A (en) Automatic water feeding device
JPS55129115A (en) Defoaming water-supply unit
JPH0243005Y2 (en)
JPS55132471A (en) Swing type check valve to be provided in pipeline
JPS56118572A (en) Method of controlling tandem system pumping-up power plant
JPS55131580A (en) Method of controlling water drainer
JPS54108041A (en) Freezing preventing apparatus of hot water supplier
JPS5551253A (en) Antifreeze apparatus
JPS5371333A (en) Automatic gas leakage breaking device
JPS5267406A (en) Automatic water stop system
JPS5773864A (en) Protection of hydraulic machinery
JPS56163419A (en) Calibrating device of flow meter
JPS5773397A (en) Drain discharging apparatus
JPS55128794A (en) Cooling water feeding system for condenser
JPS5574436A (en) Detecting method for leakage of submarine pipe-line
JPS5657116A (en) Flow rate control method
JPS5493789A (en) Flow quantity controlling method and its device
JPS5474502A (en) Pump starting method
JPS55119271A (en) Opening/closing valve device
JPS54114649A (en) Hydraulic machine control
JPS57205608A (en) Controller for falling of inflatable film dam