JPS5517632A - Protecting device for balancing disc of pump - Google Patents

Protecting device for balancing disc of pump

Info

Publication number
JPS5517632A
JPS5517632A JP8940278A JP8940278A JPS5517632A JP S5517632 A JPS5517632 A JP S5517632A JP 8940278 A JP8940278 A JP 8940278A JP 8940278 A JP8940278 A JP 8940278A JP S5517632 A JPS5517632 A JP S5517632A
Authority
JP
Japan
Prior art keywords
pump
balancing
pressure
disc
stationary vane
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.)
Granted
Application number
JP8940278A
Other languages
Japanese (ja)
Other versions
JPS6249475B2 (en
Inventor
Yutaka Kawada
Nobuo Kida
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 Heavy Industries Ltd
Original Assignee
Mitsubishi Heavy Industries 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 Mitsubishi Heavy Industries Ltd filed Critical Mitsubishi Heavy Industries Ltd
Priority to JP8940278A priority Critical patent/JPS5517632A/en
Publication of JPS5517632A publication Critical patent/JPS5517632A/en
Publication of JPS6249475B2 publication Critical patent/JPS6249475B2/ja
Granted legal-status Critical Current

Links

Landscapes

  • Control Of Non-Positive-Displacement Pumps (AREA)

Abstract

PURPOSE: To prevent a balancing disc from coming into contact with a stationary vane unit, by reducing the cross-sectional area of a passage extending from a balancing unit to a suction pipe of a pump at the time of starting and stopping of the pump to raise the pressure of a balancing chamber to keep the balancing disc away from the stationary vane unit.
CONSTITUTION: When a multistage high-pressure centrifugal pump is run, the pressure of the discharge port 6 of the pump is transmitted to the pressure chamber 20 of a balancing disc protector 15 through a pipe 19 to elevate a piston 22 and open a leaking flow return passage 16. When the motive power supply to the pump is stopped and the discharge pressure of the pump falls below a set level, the piston 20 is moved down by a spring 25 and a piston rod 23 projects into the passage 16. At that time, the pressure of the balancing chamber 9 rises but the flow rate does not greatly fall. Therefore, the gap between the balancing disc 1 and the stationary vane unit 7 does not become extremely small. The disc is thus prevented from coming into contact with the stationary vane unit.
COPYRIGHT: (C)1980,JPO&Japio
JP8940278A 1978-07-24 1978-07-24 Protecting device for balancing disc of pump Granted JPS5517632A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP8940278A JPS5517632A (en) 1978-07-24 1978-07-24 Protecting device for balancing disc of pump

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP8940278A JPS5517632A (en) 1978-07-24 1978-07-24 Protecting device for balancing disc of pump

Publications (2)

Publication Number Publication Date
JPS5517632A true JPS5517632A (en) 1980-02-07
JPS6249475B2 JPS6249475B2 (en) 1987-10-20

Family

ID=13969640

Family Applications (1)

Application Number Title Priority Date Filing Date
JP8940278A Granted JPS5517632A (en) 1978-07-24 1978-07-24 Protecting device for balancing disc of pump

Country Status (1)

Country Link
JP (1) JPS5517632A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH01106457U (en) * 1988-01-08 1989-07-18

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0968195A (en) * 1995-08-31 1997-03-11 Ebara Corp Canned motor pump

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH01106457U (en) * 1988-01-08 1989-07-18

Also Published As

Publication number Publication date
JPS6249475B2 (en) 1987-10-20

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