JPS54154801A - Maintenance operation of pump with actual small water load - Google Patents

Maintenance operation of pump with actual small water load

Info

Publication number
JPS54154801A
JPS54154801A JP6404978A JP6404978A JPS54154801A JP S54154801 A JPS54154801 A JP S54154801A JP 6404978 A JP6404978 A JP 6404978A JP 6404978 A JP6404978 A JP 6404978A JP S54154801 A JPS54154801 A JP S54154801A
Authority
JP
Japan
Prior art keywords
pump
water
water tank
valve
small
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
JP6404978A
Other languages
Japanese (ja)
Inventor
Yoshiaki Koga
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.)
Ebara Corp
Original Assignee
Ebara 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 Ebara Corp filed Critical Ebara Corp
Priority to JP6404978A priority Critical patent/JPS54154801A/en
Publication of JPS54154801A publication Critical patent/JPS54154801A/en
Pending legal-status Critical Current

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  • Control Of Positive-Displacement Pumps (AREA)

Abstract

PURPOSE: For ensuring maintenance operation of pumps with actual small water load, to make reflux of the water contained in a suction water tank through the branch pipe connected to a discharge valves and to circulate said water by means of a pump when said water is small in quantity.
CONSTITUTION: The discharge side of the pump 2 provided in the upper section of a suction water tank 1 is connected to the lower section of a suction water tank 4. A branch pipe 9 fitted with another valve 5 is provided between the discharge side of said pump 2 and a discharge valve 3, and the discharge side of said branch pipe 9 is led to said suction water tank 1. Said pump 2 is operated by a motor 6 through the medium of reducing gear 7. When the water contained in said suction water tank 1 is small in quantity, said pump 2 is operated with said discharge valve 3 closed and a valve 5 opened. Then, said small quantity of water flows back into said water tank 1 through said valve 5 and circulates. Thus, the maintenance operation of said pump 2 can be performed with actual small water load.
COPYRIGHT: (C)1979,JPO&Japio
JP6404978A 1978-05-29 1978-05-29 Maintenance operation of pump with actual small water load Pending JPS54154801A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP6404978A JPS54154801A (en) 1978-05-29 1978-05-29 Maintenance operation of pump with actual small water load

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP6404978A JPS54154801A (en) 1978-05-29 1978-05-29 Maintenance operation of pump with actual small water load

Publications (1)

Publication Number Publication Date
JPS54154801A true JPS54154801A (en) 1979-12-06

Family

ID=13246841

Family Applications (1)

Application Number Title Priority Date Filing Date
JP6404978A Pending JPS54154801A (en) 1978-05-29 1978-05-29 Maintenance operation of pump with actual small water load

Country Status (1)

Country Link
JP (1) JPS54154801A (en)

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5192402A (en) * 1975-02-10 1976-08-13

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5192402A (en) * 1975-02-10 1976-08-13

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