JPS572498A - Protection device for oil film seal for centrifugal compressor - Google Patents
Protection device for oil film seal for centrifugal compressorInfo
- Publication number
- JPS572498A JPS572498A JP7426780A JP7426780A JPS572498A JP S572498 A JPS572498 A JP S572498A JP 7426780 A JP7426780 A JP 7426780A JP 7426780 A JP7426780 A JP 7426780A JP S572498 A JPS572498 A JP S572498A
- Authority
- JP
- Japan
- Prior art keywords
- pressure
- gas
- control valve
- injection
- shaft seal
- 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 make it possible to continue the operation of a plant by automatically supplying a seal gas having a higher pressure than a suction pressure from an intermediate stage during maintenance when a control valve for injection fails to operate properly.
CONSTITUTION: Even if an injection control valve 5 (for injection) should fail, a high pressure gas flows into a balance line 4 through an opening and closing valve 11 and a check valve 12 from an intermediate stage of a compressor 1. A higher pressure gas from a suction pressure is then lead into a reference chamber. As a control valve 9 controls a shaft seal oil against the gas pressure of a gas balance line 4, (the shaft seal oil is designed to be supplied at a pressure hiher than a reference gas pressure), the shaft seal oil can be supplied properly. Therefore, the compressor can operate continuously without emergency stop, even if the control valve 5 should fail.
COPYRIGHT: (C)1982,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP7426780A JPS572498A (en) | 1980-06-04 | 1980-06-04 | Protection device for oil film seal for centrifugal compressor |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP7426780A JPS572498A (en) | 1980-06-04 | 1980-06-04 | Protection device for oil film seal for centrifugal compressor |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS572498A true JPS572498A (en) | 1982-01-07 |
Family
ID=13542169
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP7426780A Pending JPS572498A (en) | 1980-06-04 | 1980-06-04 | Protection device for oil film seal for centrifugal compressor |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS572498A (en) |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5946398A (en) * | 1982-09-08 | 1984-03-15 | Mitsui Eng & Shipbuild Co Ltd | Turbo compressor |
JPH01274860A (en) * | 1988-04-27 | 1989-11-02 | Yazaki Kako Kk | Device for producing steel pipe with coated inner surface and resin-coated steel pipe |
US5586639A (en) * | 1994-12-12 | 1996-12-24 | Yazaki Industrial Chemical Co. | Powered roller conveyer for light loads |
CN102878108A (en) * | 2012-09-21 | 2013-01-16 | 西安陕鼓动力股份有限公司 | Inlet air sealing device for axial air feeding type air compressor |
CN104747490A (en) * | 2015-02-16 | 2015-07-01 | 沈阳鼓风机集团自动控制***工程有限公司 | Bearing-oil-sealed buffer gas pressure control method |
-
1980
- 1980-06-04 JP JP7426780A patent/JPS572498A/en active Pending
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5946398A (en) * | 1982-09-08 | 1984-03-15 | Mitsui Eng & Shipbuild Co Ltd | Turbo compressor |
JPS639117B2 (en) * | 1982-09-08 | 1988-02-25 | Mitsui Shipbuilding Eng | |
JPH01274860A (en) * | 1988-04-27 | 1989-11-02 | Yazaki Kako Kk | Device for producing steel pipe with coated inner surface and resin-coated steel pipe |
US5586639A (en) * | 1994-12-12 | 1996-12-24 | Yazaki Industrial Chemical Co. | Powered roller conveyer for light loads |
CN102878108A (en) * | 2012-09-21 | 2013-01-16 | 西安陕鼓动力股份有限公司 | Inlet air sealing device for axial air feeding type air compressor |
CN104747490A (en) * | 2015-02-16 | 2015-07-01 | 沈阳鼓风机集团自动控制***工程有限公司 | Bearing-oil-sealed buffer gas pressure control method |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
JPS5776291A (en) | Scroll fluid machine | |
JPS572498A (en) | Protection device for oil film seal for centrifugal compressor | |
JPS5517604A (en) | Method of and device for operating hydraulic turbine or pump hydraulic turbine | |
JPS54108143A (en) | Running control method of multistage hydraulic machinery | |
JPS56138405A (en) | Gland steam pipe device for steam turbine | |
JPS55142994A (en) | Centrifugal compressor | |
JPS57119107A (en) | Gland seal device | |
JPS56106032A (en) | Apparatus for controlling amount of by-pass exhaust gas used in engine equipped with supercharger | |
JPS5712164A (en) | Air supply device to rotor | |
JPS5569770A (en) | Pump turbine control device | |
JPS5443311A (en) | Method of sealing vent gas line of low temperature liquid | |
JPS55119997A (en) | Control of turbo compressor | |
JPS5683577A (en) | Method of controlling kaplan turbine | |
JPS5786598A (en) | Refrigerating device | |
JPS56162289A (en) | Overheat preventing apparatus for feed water pump | |
JPS56162212A (en) | Cooling system for steam turbine | |
JPS5799234A (en) | Supercharger | |
JPS56124698A (en) | Volume controller for compressor | |
JPS52125915A (en) | Furnace top pressure controlling method by blast furnace gas expansion turbine and its apparatus | |
JPS54113708A (en) | Steam sealing device | |
JPS5557691A (en) | Driving method of oil cooling rotary compressor | |
JPS55142989A (en) | Automatic drain discharger for oil rotary vacuum pump | |
JPS5491806A (en) | Device to supply and discharge liquid in liquid-cooled rotor | |
JPS56129793A (en) | Rotary type gas compressor with forced lubrication system | |
JPS56167867A (en) | Operation controlling method for hydraulic machine |