WO2009069257A1 - 冷凍装置 - Google Patents

冷凍装置 Download PDF

Info

Publication number
WO2009069257A1
WO2009069257A1 PCT/JP2008/003301 JP2008003301W WO2009069257A1 WO 2009069257 A1 WO2009069257 A1 WO 2009069257A1 JP 2008003301 W JP2008003301 W JP 2008003301W WO 2009069257 A1 WO2009069257 A1 WO 2009069257A1
Authority
WO
WIPO (PCT)
Prior art keywords
coolant
expansion valve
instruction value
control means
lower limit
Prior art date
Application number
PCT/JP2008/003301
Other languages
English (en)
French (fr)
Inventor
Mikio Kagawa
Atsushi Okamoto
Takuya Kotani
Original Assignee
Daikin Industries, Ltd.
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 Daikin Industries, Ltd. filed Critical Daikin Industries, Ltd.
Publication of WO2009069257A1 publication Critical patent/WO2009069257A1/ja

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
    • F25B41/00—Fluid-circulation arrangements
    • F25B41/30—Expansion means; Dispositions thereof
    • F25B41/31—Expansion valves
    • F25B41/34—Expansion valves with the valve member being actuated by electric means, e.g. by piezoelectric actuators
    • F25B41/35—Expansion valves with the valve member being actuated by electric means, e.g. by piezoelectric actuators by rotary motors, e.g. by stepping motors
    • 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
    • F25B13/00—Compression machines, plants or systems, with reversible cycle
    • 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
    • F25B2313/00—Compression machines, plants or systems with reversible cycle not otherwise provided for
    • F25B2313/027—Compression machines, plants or systems with reversible cycle not otherwise provided for characterised by the reversing means
    • F25B2313/02741—Compression machines, plants or systems with reversible cycle not otherwise provided for characterised by the reversing means using one four-way valve
    • 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
    • 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)
  • Compression-Type Refrigeration Machines With Reversible Cycles (AREA)

Abstract

　膨張弁（18）の開度を制御する弁制御手段（53）が、冷媒回路（20）で利用側熱交換器（37）が蒸発器として動作するように冷凍サイクルを行いながら冷媒回路（20）に冷媒を充填する冷媒充填運転時に、開度指令値が下限指令値に等しくなっている状態で、膨張弁（18）と圧縮機（30）の吸入側と間の低圧側冷媒の状態に基づいて膨張弁（18）が閉状態になっているか否かを判定する判定動作を行うように構成する。そして、弁制御手段（53）は、判定動作で膨張弁（18）が閉状態になっていると判定した場合に下限指令値を大きな値に補正するように構成する。
PCT/JP2008/003301 2007-11-30 2008-11-12 冷凍装置 WO2009069257A1 (ja)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2007-311303 2007-11-30
JP2007311303A JP4363483B2 (ja) 2007-11-30 2007-11-30 冷凍装置

Publications (1)

Publication Number Publication Date
WO2009069257A1 true WO2009069257A1 (ja) 2009-06-04

Family

ID=40678171

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2008/003301 WO2009069257A1 (ja) 2007-11-30 2008-11-12 冷凍装置

Country Status (2)

Country Link
JP (1) JP4363483B2 (ja)
WO (1) WO2009069257A1 (ja)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3009773A1 (en) * 2013-06-11 2016-04-20 Daikin Industries, Ltd. Air conditioner
CN108431526A (zh) * 2015-12-22 2018-08-21 大金工业株式会社 空调装置
CN108474602A (zh) * 2015-12-22 2018-08-31 大金工业株式会社 空调装置

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP5764735B2 (ja) * 2010-11-30 2015-08-19 パナソニックＩｐマネジメント株式会社 冷凍装置
JP5962010B2 (ja) * 2011-12-28 2016-08-03 ダイキン工業株式会社 冷媒漏洩防止剤の吸入方法

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH05118670A (ja) * 1991-10-29 1993-05-14 Sanyo Electric Co Ltd 空気調和機における室内電動弁の制御方法
JPH09243137A (ja) * 1996-03-07 1997-09-16 Mitsubishi Electric Corp 空気調和機の電子膨張弁制御装置
JPH11159893A (ja) * 1997-12-01 1999-06-15 Mitsubishi Electric Corp 電動膨張弁の全閉開度検知装置を備えた冷凍サイクル
JP2001194029A (ja) * 2000-01-05 2001-07-17 Kubota Corp 冷凍回路における電子膨張弁の調整方法
JP2003329698A (ja) * 2002-05-16 2003-11-19 Saginomiya Seisakusho Inc 電動弁、電動弁の駆動装置、電動弁の制御装置、及び冷凍サイクル装置並びに空気調和機
JP2007292428A (ja) * 2006-04-27 2007-11-08 Daikin Ind Ltd 空気調和装置

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH05118670A (ja) * 1991-10-29 1993-05-14 Sanyo Electric Co Ltd 空気調和機における室内電動弁の制御方法
JPH09243137A (ja) * 1996-03-07 1997-09-16 Mitsubishi Electric Corp 空気調和機の電子膨張弁制御装置
JPH11159893A (ja) * 1997-12-01 1999-06-15 Mitsubishi Electric Corp 電動膨張弁の全閉開度検知装置を備えた冷凍サイクル
JP2001194029A (ja) * 2000-01-05 2001-07-17 Kubota Corp 冷凍回路における電子膨張弁の調整方法
JP2003329698A (ja) * 2002-05-16 2003-11-19 Saginomiya Seisakusho Inc 電動弁、電動弁の駆動装置、電動弁の制御装置、及び冷凍サイクル装置並びに空気調和機
JP2007292428A (ja) * 2006-04-27 2007-11-08 Daikin Ind Ltd 空気調和装置

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3009773A1 (en) * 2013-06-11 2016-04-20 Daikin Industries, Ltd. Air conditioner
EP3009773A4 (en) * 2013-06-11 2016-05-18 Daikin Ind Ltd AIR CONDITIONER
CN108431526A (zh) * 2015-12-22 2018-08-21 大金工业株式会社 空调装置
CN108474602A (zh) * 2015-12-22 2018-08-31 大金工业株式会社 空调装置
EP3396275A4 (en) * 2015-12-22 2018-11-21 Daikin Industries, Ltd. Air-conditioning apparatus
EP3396276A4 (en) * 2015-12-22 2018-12-05 Daikin Industries, Ltd. Air conditioning device
CN108474602B (zh) * 2015-12-22 2019-08-20 大金工业株式会社 空调装置
CN108431526B (zh) * 2015-12-22 2019-09-13 大金工业株式会社 空调装置

Also Published As

Publication number Publication date
JP2009133571A (ja) 2009-06-18
JP4363483B2 (ja) 2009-11-11

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