JPS5779300A - Front pressure control method of ejector nozzle - Google Patents
Front pressure control method of ejector nozzleInfo
- Publication number
- JPS5779300A JPS5779300A JP15607980A JP15607980A JPS5779300A JP S5779300 A JPS5779300 A JP S5779300A JP 15607980 A JP15607980 A JP 15607980A JP 15607980 A JP15607980 A JP 15607980A JP S5779300 A JPS5779300 A JP S5779300A
- Authority
- JP
- Japan
- Prior art keywords
- ejector
- nozzle
- pressure
- cooling water
- front pressure
- 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
Abstract
PURPOSE: To minimize the drive steam necessary for an ejector in relation to the required design conditions and obtain an assigned vacuum by continuously controlling the front pressure on the ejector nozzle in response to the temperature of the cooling water.
CONSTITUTION: Control signal is always transmitted from a pressure control unit 10 for the drive steam so as to make the pressure P1 of the drive steam detected by a pressure deteting terminal 11 correspond with the front pressure P in the nozzle 2 of a ejector 1 acting as the arranged value constantly computed from the temperature of the cooling water, and opening degree of the pressure control valve 12 is controlled. Thus, an assigned vacuum may be obtained regardless of any change in the temperature of cooling water. Consequently, the front pressure control at the nozzle 2 of ejector 1 which is superior in view of economy, operativeness ad performance by continuously controlling the front pressure in the nozzle 2 of the ejector 1 in response to the temperature of cooling water to obtain an assigned vacuum and minimizing the drive steam necessary for the ejector 1 in relation to the required design conditions.
COPYRIGHT: (C)1982,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP15607980A JPS5779300A (en) | 1980-11-05 | 1980-11-05 | Front pressure control method of ejector nozzle |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP15607980A JPS5779300A (en) | 1980-11-05 | 1980-11-05 | Front pressure control method of ejector nozzle |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5779300A true JPS5779300A (en) | 1982-05-18 |
Family
ID=15619838
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP15607980A Pending JPS5779300A (en) | 1980-11-05 | 1980-11-05 | Front pressure control method of ejector nozzle |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5779300A (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4762467A (en) * | 1985-12-21 | 1988-08-09 | Henkel Kommanditgesellschaft Auf Aktien | Method for controlling the pressure ratio of a jet pump |
US5011388A (en) * | 1988-04-28 | 1991-04-30 | Hitachi, Ltd. | Oil-free screw compressor apparatus |
JP2011069479A (en) * | 2009-09-28 | 2011-04-07 | Tlv Co Ltd | Check valve and steam supply system using the same |
-
1980
- 1980-11-05 JP JP15607980A patent/JPS5779300A/en active Pending
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4762467A (en) * | 1985-12-21 | 1988-08-09 | Henkel Kommanditgesellschaft Auf Aktien | Method for controlling the pressure ratio of a jet pump |
US5011388A (en) * | 1988-04-28 | 1991-04-30 | Hitachi, Ltd. | Oil-free screw compressor apparatus |
JP2011069479A (en) * | 2009-09-28 | 2011-04-07 | Tlv Co Ltd | Check valve and steam supply system using the same |
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