WO2010003590A3 - Refrigeration circuit - Google Patents

Refrigeration circuit Download PDF

Info

Publication number
WO2010003590A3
WO2010003590A3 PCT/EP2009/004789 EP2009004789W WO2010003590A3 WO 2010003590 A3 WO2010003590 A3 WO 2010003590A3 EP 2009004789 W EP2009004789 W EP 2009004789W WO 2010003590 A3 WO2010003590 A3 WO 2010003590A3
Authority
WO
WIPO (PCT)
Prior art keywords
collecting container
line
refrigeration circuit
medium pressure
control valve
Prior art date
Application number
PCT/EP2009/004789
Other languages
French (fr)
Other versions
WO2010003590A2 (en
Inventor
Oliver Finckh
Tobias H. Sienel
Markus Hafkemeyer
Christoph Kren
Rainer Schrey
Original Assignee
Carrier Corporation
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Carrier Corporation filed Critical Carrier Corporation
Priority to EP09776929.3A priority Critical patent/EP2318782B1/en
Priority to DK09776929.3T priority patent/DK2318782T3/en
Priority to US13/003,207 priority patent/US20110146313A1/en
Priority to MX2010013752A priority patent/MX2010013752A/en
Publication of WO2010003590A2 publication Critical patent/WO2010003590A2/en
Publication of WO2010003590A3 publication Critical patent/WO2010003590A3/en

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
    • F25B49/00—Arrangement or mounting of control or safety devices
    • F25B49/02—Arrangement or mounting of control or safety devices for compression type machines, plants or systems
    • F25B49/027—Condenser control 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
    • 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
    • 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
    • F25B2400/01—Heaters
    • 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
    • F25B2400/04—Refrigeration circuit bypassing means
    • 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
    • F25B2400/22—Refrigeration systems for supermarkets
    • 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
    • F25B2400/23—Separators
    • 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
    • F25B2500/31—Low ambient temperatures
    • 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
    • F25B2700/00—Sensing or detecting of parameters; Sensors therefor
    • F25B2700/04—Refrigerant level
    • 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
    • F25B2700/00—Sensing or detecting of parameters; Sensors therefor
    • F25B2700/21—Temperatures
    • F25B2700/2109—Temperatures of a separator

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Mechanical Engineering (AREA)
  • Thermal Sciences (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Devices That Are Associated With Refrigeration Equipment (AREA)
  • Separation By Low-Temperature Treatments (AREA)
  • Vaporization, Distillation, Condensation, Sublimation, And Cold Traps (AREA)
  • Air Conditioning Control Device (AREA)

Abstract

A refrigeration circuit (2) has a mono- or multi-component refrigerant, especially CO2, circulating therein, said refrigeration circuit (2) enabling an transcritical operation, said refrigeration circuit (2) comprising, in the direction of refrigerant flow, a compressor unit (4), a condenser/gascooler (6), a high pressure control valve (12), a collecting container (14), and at least one evaporator (18, 22) having an expansion device (16, 20) connected upstream thereof, wherein a flashgas line (24) having a medium pressure control valve (26) arranged therein is provided between an upper portion of the collecting container (14) and the suction line leading to the compressor unit (4), wherein a temperature, pressure or liquid level sensor (28) is provided in or at the collecting container (14), wherein a bypass line (30) having a medium pressure holding valve (32) arranged therein is provided connecting the line between the condenser/gascooler (6) and the high pressure control valve (12) to the line between the collecting container (14) and the expansion device(s) (16, 20), and wherein a control unit is provided said control unit being configured to open the medium pressure holding valve (32) when the temperature or pressure in the collecting container (14) sensed by the sensor (28) falls below a predetermined threshold or the liquid level in the collecting container (14) sensed by the sensor (28) exceeds a predetermined threshold, such that the medium pressure is prevented from decreasing.
PCT/EP2009/004789 2008-07-03 2009-07-02 Refrigeration circuit WO2010003590A2 (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
EP09776929.3A EP2318782B1 (en) 2008-07-07 2009-07-02 Refrigeration circuit
DK09776929.3T DK2318782T3 (en) 2008-07-07 2009-07-02 COOLING CIRCUIT
US13/003,207 US20110146313A1 (en) 2008-07-07 2009-07-02 Refrigeration circuit
MX2010013752A MX2010013752A (en) 2008-07-03 2009-07-02 Refrigeration circuit.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
EP2008005524 2008-07-07
EPPCT/EP2008/005524 2008-07-07

Publications (2)

Publication Number Publication Date
WO2010003590A2 WO2010003590A2 (en) 2010-01-14
WO2010003590A3 true WO2010003590A3 (en) 2010-07-29

Family

ID=41507474

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2009/004789 WO2010003590A2 (en) 2008-07-03 2009-07-02 Refrigeration circuit

Country Status (3)

Country Link
US (1) US20110146313A1 (en)
DK (1) DK2318782T3 (en)
WO (1) WO2010003590A2 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108139119A (en) * 2015-10-08 2018-06-08 三菱电机株式会社 Refrigerating circulatory device

Families Citing this family (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9086232B1 (en) * 2010-01-18 2015-07-21 Robert Michael Read Refrigeration system having supplemental refrigerant path
DK177329B1 (en) 2011-06-16 2013-01-14 Advansor As Refrigeration system
CN106461284B (en) * 2013-01-25 2019-04-23 艾默生零售解决方案公司 System and method for controlling transcritical cooling system
US10139143B2 (en) 2013-12-17 2018-11-27 Lennox Industries Inc. Air conditioner with multiple expansion devices
EP2889558B1 (en) 2013-12-30 2019-05-08 Rolls-Royce Corporation Cooling system with expander and ejector
US9739200B2 (en) 2013-12-30 2017-08-22 Rolls-Royce Corporation Cooling systems for high mach applications
DE102014100917A1 (en) * 2014-01-27 2015-07-30 Bitzer Kühlmaschinenbau Gmbh refrigeration plant
ES2939551T3 (en) * 2015-02-09 2023-04-24 Carrier Corp cooling and heating system
WO2016180481A1 (en) * 2015-05-12 2016-11-17 Carrier Corporation Ejector refrigeration circuit
CN104913558A (en) * 2015-06-08 2015-09-16 珠海格力电器股份有限公司 Two-stage enthalpy-increasing compressor control method
CN105485951A (en) * 2015-12-15 2016-04-13 昆明东启科技股份有限公司 Carbon dioxide heat pump system for improving heating efficiency by utilizing gas-liquid two-phase separator
CN108885035B (en) * 2016-03-31 2021-04-16 开利公司 Refrigeration circuit
CN108954650B (en) * 2018-04-09 2020-12-25 青岛海尔空调电子有限公司 Air-cooled magnetic suspension air conditioner control method and air-cooled magnetic suspension air conditioner
US10906150B2 (en) 2018-04-11 2021-02-02 Rolls-Royce North American Technologies Inc Mechanically pumped system for direct control of two-phase isothermal evaporation
US11022360B2 (en) * 2019-04-10 2021-06-01 Rolls-Royce North American Technologies Inc. Method for reducing condenser size and power on a heat rejection system
US10921042B2 (en) 2019-04-10 2021-02-16 Rolls-Royce North American Technologies Inc. Method for reducing condenser size and power on a heat rejection system
US11047606B2 (en) * 2019-09-30 2021-06-29 Hill Phoenix, Inc. Systems and methods for condenser diagnostics

Citations (7)

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Publication number Priority date Publication date Assignee Title
WO1990007683A1 (en) * 1989-01-09 1990-07-12 Sinvent As Trans-critical vapour compression cycle device
US5752390A (en) * 1996-10-25 1998-05-19 Hyde; Robert Improvements in vapor-compression refrigeration
JPH1163687A (en) * 1997-08-12 1999-03-05 Zexel Corp Air conditioner cycle
JP2002106959A (en) * 2000-09-28 2002-04-10 Sanyo Electric Co Ltd Heat pump water heater
WO2006015629A1 (en) * 2004-08-09 2006-02-16 Carrier Corporation Flashgas removal from a receiver in a refrigeration circuit
WO2007119372A1 (en) * 2006-03-29 2007-10-25 Sanyo Electric Co., Ltd. Freezing apparatus
DE102006050232B3 (en) * 2006-10-17 2008-02-07 Bitzer Kühlmaschinenbau Gmbh Cooling system, has refrigeration stage with refrigerated expansion cooling unit that is cooled in active condition of overall mass flow, where main mass flow is guided to refrigerated expansion unit and additional mass flow is generated

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US3191396A (en) * 1963-01-14 1965-06-29 Carrier Corp Refrigeration system and apparatus for operation at low loads
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TW278112B (en) * 1994-05-27 1996-06-11 Toyota Automatic Loom Co Ltd
CN1135341C (en) * 1994-05-30 2004-01-21 三菱电机株式会社 Refrigerating circulating system and refrigerating air conditioning device
US6560980B2 (en) * 2000-04-10 2003-05-13 Thermo King Corporation Method and apparatus for controlling evaporator and condenser fans in a refrigeration system
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Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1990007683A1 (en) * 1989-01-09 1990-07-12 Sinvent As Trans-critical vapour compression cycle device
US5752390A (en) * 1996-10-25 1998-05-19 Hyde; Robert Improvements in vapor-compression refrigeration
JPH1163687A (en) * 1997-08-12 1999-03-05 Zexel Corp Air conditioner cycle
JP2002106959A (en) * 2000-09-28 2002-04-10 Sanyo Electric Co Ltd Heat pump water heater
WO2006015629A1 (en) * 2004-08-09 2006-02-16 Carrier Corporation Flashgas removal from a receiver in a refrigeration circuit
WO2007119372A1 (en) * 2006-03-29 2007-10-25 Sanyo Electric Co., Ltd. Freezing apparatus
DE102006050232B3 (en) * 2006-10-17 2008-02-07 Bitzer Kühlmaschinenbau Gmbh Cooling system, has refrigeration stage with refrigerated expansion cooling unit that is cooled in active condition of overall mass flow, where main mass flow is guided to refrigerated expansion unit and additional mass flow is generated

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108139119A (en) * 2015-10-08 2018-06-08 三菱电机株式会社 Refrigerating circulatory device
CN108139119B (en) * 2015-10-08 2020-06-05 三菱电机株式会社 Refrigeration cycle device

Also Published As

Publication number Publication date
US20110146313A1 (en) 2011-06-23
WO2010003590A2 (en) 2010-01-14
DK2318782T3 (en) 2019-04-23

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