JPS5564199A - Centrifugal diagonal flow pump - Google Patents
Centrifugal diagonal flow pumpInfo
- Publication number
- JPS5564199A JPS5564199A JP13453078A JP13453078A JPS5564199A JP S5564199 A JPS5564199 A JP S5564199A JP 13453078 A JP13453078 A JP 13453078A JP 13453078 A JP13453078 A JP 13453078A JP S5564199 A JPS5564199 A JP S5564199A
- Authority
- JP
- Japan
- Prior art keywords
- pressure
- cavitation
- leading edge
- clearance
- vane leading
- 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
Links
Landscapes
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
PURPOSE: To prevent a cavitation from occurring by injecting a pressure water working in a clearance formed with a front or back shroud and a casing onto such portion of vane leading edge as is easy to invite cavitation.
CONSTITUTION: A suction pressure of a pump or an inlet pressure of an impeller is detected beforehand on a pressure detector 12, and where the pressure comes below saturated steam pressure, the detection signal in introduced to a driver 11, and a wear ring 10 is moved to allow the opening end of a connection hole 8 to be through to a clearance 9. A pressure water working in the clearance 9 is injected onto such portion of a vane leading edge as is easy to invite a cavitation by way of the connection hole 8. A local low-pressure zone to occur on the vane leading edge is then removed to prevent a cavitation from occurring.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP13453078A JPS5564199A (en) | 1978-11-02 | 1978-11-02 | Centrifugal diagonal flow pump |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP13453078A JPS5564199A (en) | 1978-11-02 | 1978-11-02 | Centrifugal diagonal flow pump |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5564199A true JPS5564199A (en) | 1980-05-14 |
Family
ID=15130464
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP13453078A Pending JPS5564199A (en) | 1978-11-02 | 1978-11-02 | Centrifugal diagonal flow pump |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5564199A (en) |
-
1978
- 1978-11-02 JP JP13453078A patent/JPS5564199A/en active Pending
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