DE602007013119D1 - REFRIGERANT CIRCUIT AND METHOD FOR HANDLING OIL IN IT - Google Patents
REFRIGERANT CIRCUIT AND METHOD FOR HANDLING OIL IN ITInfo
- Publication number
- DE602007013119D1 DE602007013119D1 DE602007013119T DE602007013119T DE602007013119D1 DE 602007013119 D1 DE602007013119 D1 DE 602007013119D1 DE 602007013119 T DE602007013119 T DE 602007013119T DE 602007013119 T DE602007013119 T DE 602007013119T DE 602007013119 D1 DE602007013119 D1 DE 602007013119D1
- Authority
- DE
- Germany
- Prior art keywords
- circuit
- low pressure
- oil
- sub
- higher 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.)
- Active
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B31/00—Compressor arrangements
- F25B31/002—Lubrication
- F25B31/004—Lubrication oil recirculating arrangements
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B1/00—Compression machines, plants or systems with non-reversible cycle
- F25B1/10—Compression machines, plants or systems with non-reversible cycle with multi-stage compression
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B2309/00—Gas cycle refrigeration machines
- F25B2309/06—Compression machines, plants or systems characterised by the refrigerant being carbon dioxide
- F25B2309/061—Compression machines, plants or systems characterised by the refrigerant being carbon dioxide with cycle highest pressure above the supercritical pressure
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B2400/00—General features or devices for refrigeration machines, plants or systems, combined heating and refrigeration systems or heat-pump systems, i.e. not limited to a particular subgroup of F25B
- F25B2400/07—Details of compressors or related parts
- F25B2400/075—Details of compressors or related parts with parallel compressors
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B2400/00—General features or devices for refrigeration machines, plants or systems, combined heating and refrigeration systems or heat-pump systems, i.e. not limited to a particular subgroup of F25B
- F25B2400/13—Economisers
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B2500/00—Problems to be solved
- F25B2500/16—Lubrication
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B9/00—Compression machines, plants or systems, in which the refrigerant is air or other gas of low boiling point
- F25B9/002—Compression machines, plants or systems, in which the refrigerant is air or other gas of low boiling point characterised by the refrigerant
- F25B9/008—Compression machines, plants or systems, in which the refrigerant is air or other gas of low boiling point characterised by the refrigerant the refrigerant being carbon dioxide
Abstract
Refrigerant circuit (2) comprising a low pressure compressor unit (38) having a low pressure refrigerant outlet (42) in a low pressure sub-circuit (4) and a higher pressure compressor unit (8) having a higher pressure refrigerant inlet (12) in a higher pressure sub-circuit (6), wherein the low pressure refrigerant outlet (42) and the higher pressure refrigerant inlet (12) are fluidly connected with each other, further comprising an oil reservoir (56) connected by a low pressure oil inlet conduit (54) to the low pressure sub-circuit (4) for receiving oil therefrom and connected via an oil discharge (62) to the higher pressure sub-circuit (6).
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PCT/EP2007/008485 WO2009039873A1 (en) | 2007-09-28 | 2007-09-28 | Refrigerant circuit and method for managing oil therein |
Publications (1)
Publication Number | Publication Date |
---|---|
DE602007013119D1 true DE602007013119D1 (en) | 2011-04-21 |
Family
ID=39166345
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE602007013119T Active DE602007013119D1 (en) | 2007-09-28 | 2007-09-28 | REFRIGERANT CIRCUIT AND METHOD FOR HANDLING OIL IN IT |
Country Status (8)
Country | Link |
---|---|
US (1) | US20100251736A1 (en) |
EP (1) | EP2198214B1 (en) |
CN (1) | CN101809384B (en) |
AT (1) | ATE501405T1 (en) |
DE (1) | DE602007013119D1 (en) |
DK (1) | DK2198214T3 (en) |
NO (1) | NO20100598L (en) |
WO (1) | WO2009039873A1 (en) |
Families Citing this family (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR101166621B1 (en) * | 2009-12-24 | 2012-07-18 | 엘지전자 주식회사 | Air conditioner and method of controlling the same |
WO2011101029A1 (en) * | 2010-02-17 | 2011-08-25 | Carrier Corporation | Refrigeration system and method for balancing the oil levels between compressors of a refrigeration system |
EP2663817B1 (en) * | 2011-01-14 | 2018-10-17 | Carrier Corporation | Refrigeration system and method for operating a refrigeration system |
EP2926064B1 (en) * | 2012-11-29 | 2022-07-13 | Johnson Controls Tyco IP Holdings LLP | Pressure control for refrigerant system |
DE102013014543A1 (en) * | 2013-09-03 | 2015-03-05 | Stiebel Eltron Gmbh & Co. Kg | heat pump device |
EP3023712A1 (en) * | 2014-11-19 | 2016-05-25 | Danfoss A/S | A method for controlling a vapour compression system with a receiver |
US9939179B2 (en) * | 2015-12-08 | 2018-04-10 | Bitzer Kuehlmaschinenbau Gmbh | Cascading oil distribution system |
EP3628942B1 (en) | 2018-09-25 | 2021-01-27 | Danfoss A/S | A method for controlling a vapour compression system at a reduced suction pressure |
PL3628940T3 (en) | 2018-09-25 | 2022-08-22 | Danfoss A/S | A method for controlling a vapour compression system based on estimated flow |
EP3742069B1 (en) * | 2019-05-21 | 2024-03-20 | Carrier Corporation | Refrigeration apparatus and use thereof |
CN113503653B (en) * | 2021-08-04 | 2022-05-06 | 珠海格力电器股份有限公司 | Multi-compressor refrigeration system and air conditioner |
Family Cites Families (15)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3633377A (en) * | 1969-04-11 | 1972-01-11 | Lester K Quick | Refrigeration system oil separator |
US3500962A (en) * | 1969-05-01 | 1970-03-17 | Vilter Manufacturing Corp | Lubrication system for compressors |
JPS57168082A (en) * | 1981-04-10 | 1982-10-16 | Hitachi Ltd | Refrigerator |
US4589263A (en) * | 1984-04-12 | 1986-05-20 | Hussmann Corporation | Multiple compressor oil system |
US5016447A (en) * | 1990-05-02 | 1991-05-21 | Carrier Corporation | Oil return for a two-stage compressor having interstage cooling |
US5361594A (en) * | 1991-03-11 | 1994-11-08 | Young Robert E | Refrigeration recovery and purification |
US5265432A (en) * | 1992-09-02 | 1993-11-30 | American Standard Inc. | Oil purifying device for use with a refrigeration system |
DK4093A (en) * | 1993-01-14 | 1994-09-12 | Birton As | Installations for the return of lubricating oil in refrigeration compressors |
US5321956A (en) * | 1993-05-26 | 1994-06-21 | Kemp Industrial Refrigeration, Inc. | Oil management and removal system for a refrigeration installation |
US5522233A (en) * | 1994-12-21 | 1996-06-04 | Carrier Corporation | Makeup oil system for first stage oil separation in booster system |
US6263694B1 (en) * | 2000-04-20 | 2001-07-24 | James G. Boyko | Compressor protection device for refrigeration systems |
DE10357556A1 (en) * | 2003-12-10 | 2005-07-14 | Linde Kältetechnik GmbH & Co. KG | Composite (cold) plant and method for operating a composite (cold) plant |
JP3939314B2 (en) * | 2004-06-10 | 2007-07-04 | 三星電子株式会社 | Air conditioner and oil equalizing operation method thereof |
CN100532998C (en) * | 2004-09-02 | 2009-08-26 | 大金工业株式会社 | Refrigerating apparatus |
CN200943971Y (en) * | 2006-08-01 | 2007-09-05 | 北京市京科伦冷冻设备有限公司 | Refrigerating unit structure |
-
2007
- 2007-09-28 WO PCT/EP2007/008485 patent/WO2009039873A1/en active Application Filing
- 2007-09-28 DE DE602007013119T patent/DE602007013119D1/en active Active
- 2007-09-28 US US12/680,483 patent/US20100251736A1/en not_active Abandoned
- 2007-09-28 CN CN200780100863.4A patent/CN101809384B/en not_active Expired - Fee Related
- 2007-09-28 AT AT07818565T patent/ATE501405T1/en not_active IP Right Cessation
- 2007-09-28 DK DK07818565.9T patent/DK2198214T3/en active
- 2007-09-28 EP EP07818565A patent/EP2198214B1/en not_active Not-in-force
-
2010
- 2010-04-26 NO NO20100598A patent/NO20100598L/en not_active Application Discontinuation
Also Published As
Publication number | Publication date |
---|---|
US20100251736A1 (en) | 2010-10-07 |
CN101809384B (en) | 2012-12-12 |
EP2198214A1 (en) | 2010-06-23 |
WO2009039873A1 (en) | 2009-04-02 |
EP2198214B1 (en) | 2011-03-09 |
CN101809384A (en) | 2010-08-18 |
DK2198214T3 (en) | 2011-06-27 |
NO20100598L (en) | 2010-06-28 |
ATE501405T1 (en) | 2011-03-15 |
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