Title:
OIL RECOVERY DEVICE OF TURBO REFRIGERATOR
Document Type and Number:
Japanese Patent JP2016020783
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To provide an oil recovery device of a turbo refrigerator which dispenses with the filling of an excess amount of a lubricant and a refrigerant, surely separates the refrigerant even if a high-pressure gas refrigerant is used as a drive fluid of an ejector, can recover the lubricant to a lubricant system, and can reduce a capacity of an oil pump.SOLUTION: In an oil recovery device of a turbo refrigerator 1 in which a lubricant 14 for a compressor 2 which is mixed with a refrigerant, and flows out to a refrigeration cycle 7 side can be recovered into an oil tank 15 of a lubricant system 19 via an ejector 21 which uses a high-pressure gas refrigerant as a drive fluid, an oil recovery device 25 which heats the lubricant 14 containing the refrigerant, and separates the refrigerant from the inside of the lubricant 14 is arranged at a discharge side of the ejector 21, and a refrigerant return circuit 27 which returns a refrigerant gas separated by the oil recovery device 25 to the refrigeration cycle 7 side is arranged at the discharge side of the ejector.SELECTED DRAWING: Figure 1
Inventors:
MIYOSHI NAOYA
UEDA KENJI
HASEGAWA HIROSHI
UEDA KENJI
HASEGAWA HIROSHI
Application Number:
JP2014145169A
Publication Date:
February 04, 2016
Filing Date:
July 15, 2014
Export Citation:
Assignee:
MITSUBISHI HEAVY IND LTD
International Classes:
F25B1/00; F25B1/053; F25B43/02; F25B45/00
Domestic Patent References:
| JP2009257684A | 2009-11-05 | |||
| JPH04359758A | 1992-12-14 | |||
| JPS59132060U | 1984-09-04 | |||
| JPS54147843U | 1979-10-15 | |||
| JPS56127160A | 1981-10-05 | |||
| JP2017003212A | 2017-01-05 | |||
| JP2827801B2 | 1998-11-25 |
Foreign References:
| WO2006126396A1 | 2006-11-30 |
Attorney, Agent or Firm:
Noriharu Fujita
Kunio Ueda
Kunio Ueda