HK1135760A1 - Refrigerant system with pulse width modulation control in combination with expansion device control - Google Patents

Refrigerant system with pulse width modulation control in combination with expansion device control

Info

Publication number
HK1135760A1
HK1135760A1 HK10102503.4A HK10102503A HK1135760A1 HK 1135760 A1 HK1135760 A1 HK 1135760A1 HK 10102503 A HK10102503 A HK 10102503A HK 1135760 A1 HK1135760 A1 HK 1135760A1
Authority
HK
Hong Kong
Prior art keywords
pulse width
width modulation
expansion device
control
refrigerant system
Prior art date
Application number
HK10102503.4A
Inventor
Alexander Lifson
Michael F Taras
Mark A Lifson
Original Assignee
Carrier Corp
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 Corp filed Critical Carrier Corp
Publication of HK1135760A1 publication Critical patent/HK1135760A1/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
    • F25B1/00—Compression machines, plants or systems with non-reversible cycle
    • F25B1/04—Compression machines, plants or systems with non-reversible cycle with compressor of rotary type
    • 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
    • F25B41/22—Disposition of valves, e.g. of on-off valves or flow control valves between evaporator and compressor
    • 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
    • F25B49/022—Compressor 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
    • F25B2500/00—Problems to be solved
    • F25B2500/13—Vibrations
    • 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
    • F25B2600/2513—Expansion 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
    • F25B2600/00—Control issues
    • F25B2600/25—Control of valves
    • F25B2600/2521—On-off valves controlled by pulse signals

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Mechanical Engineering (AREA)
  • Thermal Sciences (AREA)
  • General Engineering & Computer Science (AREA)
  • Air Conditioning Control Device (AREA)
  • Magnetically Actuated Valves (AREA)

Abstract

A refrigerant system is provided with pulse width modulation control to adjust the amount of refrigerant compressed by a compressor. In one embodiment, a pulse width modulation control controls a suction modulation valve cycled between open and closed positions. In a second embodiment, the compressor itself is cycled between a position at which it compresses refrigerant and a position at which the compression elements are disengaged. In either embodiment, the control also cycles the expansion device in concert with cycling the pulse width modulation valve or the compressor. In this manner, pressure fluctuations in the refrigerant system do not exceed desirable levels. Typical cycle time for pulse width modulation control is between 5 and 30 seconds, and typical offset (delay) time for an expansion device may be between 0 and 3 seconds.
HK10102503.4A 2006-11-07 2010-03-10 Refrigerant system with pulse width modulation control in combination with expansion device control HK1135760A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/US2006/043372 WO2008057079A1 (en) 2006-11-07 2006-11-07 Refrigerant system with pulse width modulation control in combination with expansion device control

Publications (1)

Publication Number Publication Date
HK1135760A1 true HK1135760A1 (en) 2010-06-11

Family

ID=39364787

Family Applications (1)

Application Number Title Priority Date Filing Date
HK10102503.4A HK1135760A1 (en) 2006-11-07 2010-03-10 Refrigerant system with pulse width modulation control in combination with expansion device control

Country Status (4)

Country Link
US (1) US20100011792A1 (en)
CN (1) CN101535741B (en)
HK (1) HK1135760A1 (en)
WO (1) WO2008057079A1 (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101563572B (en) * 2006-12-21 2012-07-11 开利公司 refrigerant system of suction modulation valve with adjustable opening for pulse width modulation control and operation method thereof
US9267718B2 (en) * 2007-10-05 2016-02-23 Khoury Industries Incorporated Temperature control system and method
WO2010005918A2 (en) * 2008-07-09 2010-01-14 Carrier Corporation Heat pump with microchannel heat exchangers as both outdoor and reheat heat exchangers
JP4932886B2 (en) * 2009-09-30 2012-05-16 三菱重工コンプレッサ株式会社 Gas processing equipment
CN107677006B (en) * 2017-09-22 2020-08-04 青岛海尔空调器有限总公司 Control method and system of air conditioner under low-humidity heating working condition

Family Cites Families (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5203178A (en) * 1990-10-30 1993-04-20 Norm Pacific Automation Corp. Noise control of air conditioner
US5425246A (en) * 1994-03-03 1995-06-20 General Electric Company Refrigerant flow rate control based on evaporator dryness
US6047557A (en) * 1995-06-07 2000-04-11 Copeland Corporation Adaptive control for a refrigeration system using pulse width modulated duty cycle scroll compressor
US6206652B1 (en) * 1998-08-25 2001-03-27 Copeland Corporation Compressor capacity modulation
US6047556A (en) * 1997-12-08 2000-04-11 Carrier Corporation Pulsed flow for capacity control
US6474087B1 (en) * 2001-10-03 2002-11-05 Carrier Corporation Method and apparatus for the control of economizer circuit flow for optimum performance
US6672090B1 (en) * 2002-07-15 2004-01-06 Copeland Corporation Refrigeration control
US7997091B2 (en) * 2004-04-22 2011-08-16 Carrier Corporation Control scheme for multiple operating parameters in economized refrigerant system
CN101297168A (en) * 2005-10-26 2008-10-29 开利公司 Refrigerating system with speed-viable compressor and component modulated by pulse width
WO2009058106A2 (en) * 2005-11-30 2009-05-07 Carrier Corporation Suction valve pulse width modulation control based on evaporator or condenser pressure
EP1960717A4 (en) * 2005-11-30 2010-08-25 Carrier Corp Multi-circuit refrigerant system utilizing pulse width modulation techniques
DK1996877T3 (en) * 2006-03-10 2014-10-13 Carrier Corp COOLING SYSTEM WITH FLOOD COMPRESSOR CONTROL OPERATION
CN101443610B (en) * 2006-05-26 2015-08-26 开利公司 The thermal control excessively of heating ventilation air-conditioning system
WO2008018867A1 (en) * 2006-08-08 2008-02-14 Carrier Corporation Tandem compressors with pulse width modulation suction valve
EP2049847A4 (en) * 2006-08-08 2013-09-18 Carrier Corp Suction valve pulse width modulation control based on compressor temperature
WO2008024110A1 (en) * 2006-08-22 2008-02-28 Carrier Corporation Improved oil return in refrigerant system

Also Published As

Publication number Publication date
US20100011792A1 (en) 2010-01-21
CN101535741B (en) 2013-02-06
WO2008057079A1 (en) 2008-05-15
CN101535741A (en) 2009-09-16

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Legal Events

Date Code Title Description
PC Patent ceased (i.e. patent has lapsed due to the failure to pay the renewal fee)

Effective date: 20171107