WO2007111731A3 - Flash tank refrigerant control - Google Patents

Flash tank refrigerant control Download PDF

Info

Publication number
WO2007111731A3
WO2007111731A3 PCT/US2006/061836 US2006061836W WO2007111731A3 WO 2007111731 A3 WO2007111731 A3 WO 2007111731A3 US 2006061836 W US2006061836 W US 2006061836W WO 2007111731 A3 WO2007111731 A3 WO 2007111731A3
Authority
WO
WIPO (PCT)
Prior art keywords
flash tank
refrigerant control
economizer circuit
tank refrigerant
operating parameters
Prior art date
Application number
PCT/US2006/061836
Other languages
French (fr)
Other versions
WO2007111731A2 (en
Inventor
Curtis C Crane
Frank H Hill Iv
Original Assignee
Johnson Controls Tech Co
Curtis C Crane
Frank H Hill Iv
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 Johnson Controls Tech Co, Curtis C Crane, Frank H Hill Iv filed Critical Johnson Controls Tech Co
Priority to CA002631996A priority Critical patent/CA2631996A1/en
Priority to EP06850258A priority patent/EP1971808A2/en
Priority to JP2008548795A priority patent/JP2009522533A/en
Publication of WO2007111731A2 publication Critical patent/WO2007111731A2/en
Publication of WO2007111731A3 publication Critical patent/WO2007111731A3/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
    • F25B49/025—Motor 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
    • F25B41/00—Fluid-circulation arrangements
    • F25B41/20—Disposition of valves, e.g. of on-off valves or flow control valves
    • 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
    • F25B41/00—Fluid-circulation arrangements
    • F25B41/20—Disposition of valves, e.g. of on-off valves or flow control valves
    • F25B41/24—Arrangement of shut-off valves for disconnecting a part of the refrigerant cycle, e.g. an outdoor part
    • 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
    • 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
    • F25B2500/19—Calculation of parameters
    • 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
    • F25B2600/02—Compressor control
    • F25B2600/025—Compressor control by controlling speed
    • F25B2600/0253—Compressor control by controlling speed with variable speed
    • 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
    • F25B2600/23—Time delays
    • 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
    • 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
    • F25B2700/17—Speeds
    • F25B2700/171—Speeds of the compressor
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
    • Y02B30/70—Efficient control or regulation technologies, e.g. for control of refrigerant flow, motor or heating

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Mechanical Engineering (AREA)
  • Thermal Sciences (AREA)
  • General Engineering & Computer Science (AREA)
  • Air Conditioning Control Device (AREA)
  • Feedback Control In General (AREA)

Abstract

A control algorithm is provided for controlling an economizer circuit in a chiller system (100). The control algorithm adjusts the position of a feed valve (114) in the economizer circuit in response to measured system operating parameters to maintain a level of liquid refrigerant in a flash tank (110) of the economizer circuit. The measured system operating parameters can include the load of the compressor (102) and the pressure and temperature of refrigerant in the flash tank.
PCT/US2006/061836 2005-12-30 2006-12-11 Flash tank refrigerant control WO2007111731A2 (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
CA002631996A CA2631996A1 (en) 2005-12-30 2006-12-11 Flash tank refrigerant control
EP06850258A EP1971808A2 (en) 2005-12-30 2006-12-11 Flash tank refrigerant control
JP2008548795A JP2009522533A (en) 2005-12-30 2006-12-11 Flash tank refrigerant control

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
US75522205P 2005-12-30 2005-12-30
US60/755,222 2005-12-30
US11/428,913 US20070151269A1 (en) 2005-12-30 2006-07-06 System and method for level control in a flash tank
US11/428,913 2006-07-06

Publications (2)

Publication Number Publication Date
WO2007111731A2 WO2007111731A2 (en) 2007-10-04
WO2007111731A3 true WO2007111731A3 (en) 2008-01-17

Family

ID=38222937

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2006/061836 WO2007111731A2 (en) 2005-12-30 2006-12-11 Flash tank refrigerant control

Country Status (7)

Country Link
US (1) US20070151269A1 (en)
EP (1) EP1971808A2 (en)
JP (1) JP2009522533A (en)
KR (1) KR20080081002A (en)
CA (1) CA2631996A1 (en)
TW (1) TW200730778A (en)
WO (1) WO2007111731A2 (en)

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US20090220366A1 (en) * 2008-02-28 2009-09-03 William Turner Slide valve position indicator
KR101065515B1 (en) * 2009-02-13 2011-09-19 엘지전자 주식회사 Level Maintenance Apparatus of Economizer
SG183388A1 (en) 2010-03-08 2012-09-27 Carrier Corp Capacity and pressure control in a transport refrigeration system
US9909786B2 (en) 2010-03-08 2018-03-06 Carrier Corporation Refrigerant distribution apparatus and methods for transport refrigeration system
TWI454903B (en) * 2011-11-22 2014-10-01 Ind Tech Res Inst Method of controlling for saving energy
JP5872931B2 (en) * 2012-03-07 2016-03-01 三菱重工業株式会社 Turbo refrigerator
DE112014004177T5 (en) 2013-10-01 2016-05-25 Trane International Inc. Rotary compressors with variable speed and volume control
ITVI20130257A1 (en) * 2013-10-18 2015-04-19 Carel Ind Spa METHOD OF DRIVING A REFRIGERATED MACHINE EQUIPPED WITH AN ECONOMISER SYSTEM
US10830509B2 (en) 2014-07-03 2020-11-10 Danfoss A/S Refrigerant cooling for variable speed drive
EP3250865B1 (en) 2015-01-30 2021-03-03 Hewlett-Packard Enterprise Development LP Scalable coolant distribution unit
JP2018071907A (en) * 2016-10-31 2018-05-10 三菱重工サーマルシステムズ株式会社 Freezer and refrigeration system
US10571171B2 (en) 2017-01-27 2020-02-25 Emerson Climate Technologies, Inc. Low charge detection system for cooling systems
WO2019113094A1 (en) * 2017-12-06 2019-06-13 Johnson Controls Technology Company Control system and a control method for a hvac unit and a media comprising such processor-executable instructions
CN114606033A (en) * 2020-12-09 2022-06-10 中国石油化工股份有限公司 Natural gas solvent absorption denitrification flash control system and parameter optimization method
CN118215810A (en) * 2021-10-26 2024-06-18 泰科消防及安全有限公司 Economizer for a freezer
CN115247922A (en) * 2022-06-27 2022-10-28 浙江中广电器集团股份有限公司 Automatic control method for preventing refrigerant of compressor from flowing back to flash tank

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US933682A (en) * 1908-07-03 1909-09-07 Gardner Tufts Voorhees Multiple-effect receiver.
US4014182A (en) * 1974-10-11 1977-03-29 Granryd Eric G U Method of improving refrigerating capacity and coefficient of performance in a refrigerating system, and a refrigerating system for carrying out said method
US4466253A (en) * 1982-12-23 1984-08-21 General Electric Company Flow control at flash tank of open cycle vapor compression heat pumps
JPS60120155A (en) * 1983-12-02 1985-06-27 三菱電機株式会社 Refrigeration cycle device
JPH0229552A (en) * 1988-07-20 1990-01-31 Mitsubishi Electric Corp Liquid level-controlling device for flush tank in refrigerating machine
US5115644A (en) * 1979-07-31 1992-05-26 Alsenz Richard H Method and apparatus for condensing and subcooling refrigerant
US5692389A (en) * 1996-06-28 1997-12-02 Carrier Corporation Flash tank economizer
WO1999010686A1 (en) * 1997-08-21 1999-03-04 Zexel Corporation Cooling cycle
JPH11270918A (en) * 1998-03-24 1999-10-05 Daikin Ind Ltd Refrigerating device
EP1207359A2 (en) * 2000-11-15 2002-05-22 Carrier Corporation High pressure regulation in a transcritical vapor compression cycle
US20050247071A1 (en) * 2004-05-10 2005-11-10 York International Corporation Capacity control for economizer refrigeration systems

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US933682A (en) * 1908-07-03 1909-09-07 Gardner Tufts Voorhees Multiple-effect receiver.
US4014182A (en) * 1974-10-11 1977-03-29 Granryd Eric G U Method of improving refrigerating capacity and coefficient of performance in a refrigerating system, and a refrigerating system for carrying out said method
US5115644A (en) * 1979-07-31 1992-05-26 Alsenz Richard H Method and apparatus for condensing and subcooling refrigerant
US4466253A (en) * 1982-12-23 1984-08-21 General Electric Company Flow control at flash tank of open cycle vapor compression heat pumps
JPS60120155A (en) * 1983-12-02 1985-06-27 三菱電機株式会社 Refrigeration cycle device
JPH0229552A (en) * 1988-07-20 1990-01-31 Mitsubishi Electric Corp Liquid level-controlling device for flush tank in refrigerating machine
US5692389A (en) * 1996-06-28 1997-12-02 Carrier Corporation Flash tank economizer
WO1999010686A1 (en) * 1997-08-21 1999-03-04 Zexel Corporation Cooling cycle
JPH11270918A (en) * 1998-03-24 1999-10-05 Daikin Ind Ltd Refrigerating device
EP1207359A2 (en) * 2000-11-15 2002-05-22 Carrier Corporation High pressure regulation in a transcritical vapor compression cycle
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Also Published As

Publication number Publication date
US20070151269A1 (en) 2007-07-05
TW200730778A (en) 2007-08-16
EP1971808A2 (en) 2008-09-24
KR20080081002A (en) 2008-09-05
JP2009522533A (en) 2009-06-11
WO2007111731A2 (en) 2007-10-04
CA2631996A1 (en) 2007-10-04

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