JPS5485455A - Refrigerating system - Google Patents
Refrigerating systemInfo
- Publication number
- JPS5485455A JPS5485455A JP15465877A JP15465877A JPS5485455A JP S5485455 A JPS5485455 A JP S5485455A JP 15465877 A JP15465877 A JP 15465877A JP 15465877 A JP15465877 A JP 15465877A JP S5485455 A JPS5485455 A JP S5485455A
- Authority
- JP
- Japan
- Prior art keywords
- compressor
- stage compression
- condenser
- refrigerating cycle
- sucked
- 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.)
- Granted
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
- 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
- F25B2600/00—Control issues
- F25B2600/25—Control of valves
- F25B2600/2509—Economiser valves
Landscapes
- Compression-Type Refrigeration Machines With Reversible Cycles (AREA)
Abstract
PURPOSE: To promote the cooling capacity and the use efficiency of energy by giving a switching control between a single-stage and a two-stage compression operation according to the driving state of a refrigerating cycle.
CONSTITUTION: When the evaporating pressure is high such as in a pull-down driving or an initial driving of cooling, the first and the second connecting ports 8a and 8b are connected in a three-way valve 8 by a pressure detector 35, and the refrigerant liquid in a condenser 3 is sucked into the first compressor 1 through an intermediate cooler 4, an expansion valve 5, an evaporator 6, and an accumulator 7 in the state of refrigerant gas to be introduced into the condenser 3 through a discharge pipe 13 for single-stage compression, and a nonreturn valve 26. Meanwhile, it is sucked into the second compressor 2 through the second suction pipe 10, and introduced into the condenser 3 through the second discharge pipe 12 and the nonreturn valve 26 for forming a single-stage compression refrigerating cycle by the first and the second compressor 1 and 2 in parallel. When the evaporating pressure is low, the first and the third connecting port 8a and 8c are connected, and the first and the second compressor 1 and 2 are separated to the low and the high pressure side for forming a two-stage compression refrigerating cycle.
COPYRIGHT: (C)1979,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP15465877A JPS5485455A (en) | 1977-12-21 | 1977-12-21 | Refrigerating system |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP15465877A JPS5485455A (en) | 1977-12-21 | 1977-12-21 | Refrigerating system |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS5485455A true JPS5485455A (en) | 1979-07-07 |
JPS611658B2 JPS611658B2 (en) | 1986-01-18 |
Family
ID=15589041
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP15465877A Granted JPS5485455A (en) | 1977-12-21 | 1977-12-21 | Refrigerating system |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5485455A (en) |
Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2006022541A1 (en) * | 2004-08-24 | 2006-03-02 | Nederlandse Organisatie Voor Toegepast- Natuurwetenschappelijk Onderzoek Tno | A method and a cooling system in which a refrigerant is used as a cooling agent and as a defrosting agent |
JP2007232280A (en) * | 2006-03-01 | 2007-09-13 | Daikin Ind Ltd | Refrigeration unit |
EP1422487A3 (en) * | 2002-11-21 | 2008-02-13 | York Refrigeration APS | Hot gas defrosting of refrigeration plants |
WO2010036540A1 (en) | 2008-09-29 | 2010-04-01 | Carrier Corporation | Capacity boosting during pulldown |
CN102927713A (en) * | 2012-11-12 | 2013-02-13 | 天津商业大学 | Double-stage multi-concatenate secondary throttling refrigerating system with middle cooling completely |
CN103335438A (en) * | 2013-07-04 | 2013-10-02 | 天津商业大学 | One-stage throttling incomplete-inter-cooling variable-flow twin-stage compression refrigerating system |
EP2615392A3 (en) * | 2012-01-10 | 2016-06-22 | LG Electronics, Inc. | Cascade heat pump |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS63202763U (en) * | 1987-06-17 | 1988-12-27 | ||
JP2007298188A (en) * | 2006-04-27 | 2007-11-15 | Daikin Ind Ltd | Refrigerating device |
-
1977
- 1977-12-21 JP JP15465877A patent/JPS5485455A/en active Granted
Cited By (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1422487A3 (en) * | 2002-11-21 | 2008-02-13 | York Refrigeration APS | Hot gas defrosting of refrigeration plants |
WO2006022541A1 (en) * | 2004-08-24 | 2006-03-02 | Nederlandse Organisatie Voor Toegepast- Natuurwetenschappelijk Onderzoek Tno | A method and a cooling system in which a refrigerant is used as a cooling agent and as a defrosting agent |
JP2007232280A (en) * | 2006-03-01 | 2007-09-13 | Daikin Ind Ltd | Refrigeration unit |
WO2010036540A1 (en) | 2008-09-29 | 2010-04-01 | Carrier Corporation | Capacity boosting during pulldown |
EP2331887A1 (en) * | 2008-09-29 | 2011-06-15 | Carrier Corporation | Capacity boosting during pulldown |
US20110162396A1 (en) * | 2008-09-29 | 2011-07-07 | Carrier Corporation | Capacity boosting during pulldown |
CN102165274A (en) * | 2008-09-29 | 2011-08-24 | 开利公司 | Capacity boosting during pulldown |
EP2331887A4 (en) * | 2008-09-29 | 2013-04-24 | Carrier Corp | Capacity boosting during pulldown |
EP2615392A3 (en) * | 2012-01-10 | 2016-06-22 | LG Electronics, Inc. | Cascade heat pump |
US9759454B2 (en) | 2012-01-10 | 2017-09-12 | Lg Electronics Inc. | Cascade heat pump |
CN102927713A (en) * | 2012-11-12 | 2013-02-13 | 天津商业大学 | Double-stage multi-concatenate secondary throttling refrigerating system with middle cooling completely |
CN103335438A (en) * | 2013-07-04 | 2013-10-02 | 天津商业大学 | One-stage throttling incomplete-inter-cooling variable-flow twin-stage compression refrigerating system |
Also Published As
Publication number | Publication date |
---|---|
JPS611658B2 (en) | 1986-01-18 |
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