WO2008032578A1 - Refrigeration device - Google Patents

Refrigeration device Download PDF

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Publication number
WO2008032578A1
WO2008032578A1 PCT/JP2007/066846 JP2007066846W WO2008032578A1 WO 2008032578 A1 WO2008032578 A1 WO 2008032578A1 JP 2007066846 W JP2007066846 W JP 2007066846W WO 2008032578 A1 WO2008032578 A1 WO 2008032578A1
Authority
WO
WIPO (PCT)
Prior art keywords
refrigerant
pressure
expansion valve
expansion mechanism
electric expansion
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.)
Ceased
Application number
PCT/JP2007/066846
Other languages
English (en)
French (fr)
Japanese (ja)
Inventor
Shinichi Kasahara
Toshiyuki Kurihara
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Daikin Industries Ltd
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
Priority to US12/439,954 priority Critical patent/US8205464B2/en
Priority to CN2007800333845A priority patent/CN101512245B/zh
Priority to EP07806323A priority patent/EP2068094A1/en
Publication of WO2008032578A1 publication Critical patent/WO2008032578A1/ja
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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
    • 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
    • F25B41/00—Fluid-circulation arrangements
    • F25B41/30—Expansion means; Dispositions thereof
    • F25B41/39—Dispositions with two or more expansion means arranged in series, i.e. multi-stage expansion, on a refrigerant line leading to the same evaporator
    • 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
    • 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
    • F25B2313/00—Compression machines, plants or systems with reversible cycle not otherwise provided for
    • F25B2313/006—Compression machines, plants or systems with reversible cycle not otherwise provided for two pipes connecting the outdoor side to the indoor side with multiple indoor units
    • 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
    • F25B2313/023—Compression machines, plants or systems with reversible cycle not otherwise provided for using multiple indoor units
    • F25B2313/0233—Compression machines, plants or systems with reversible cycle not otherwise provided for using multiple indoor units in parallel 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
    • 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
    • F25B2313/00—Compression machines, plants or systems with reversible cycle not otherwise provided for
    • F25B2313/031—Sensor arrangements
    • F25B2313/0311—Pressure sensors near the expansion 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
    • F25B2341/00—Details of ejectors not being used as compression device; Details of flow restrictors or expansion valves
    • F25B2341/06—Details of flow restrictors or expansion valves
    • F25B2341/063—Feed forward 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
    • 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
    • F25B2400/16—Receivers
    • 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
    • F25B2600/17—Control issues by controlling the pressure of the condenser
    • 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
    • F25B2700/00—Sensing or detecting of parameters; Sensors therefor
    • F25B2700/19—Pressures
    • F25B2700/191—Pressures near an expansion 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
    • F25B2700/00—Sensing or detecting of parameters; Sensors therefor
    • F25B2700/19—Pressures
    • F25B2700/193—Pressures of the compressor
    • F25B2700/1931—Discharge pressures
    • 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
    • F25B2700/2102—Temperatures at the outlet of the gas cooler

Definitions

  • the control unit uses the pressure detected by the pressure detection unit and the temperature detected by the temperature detection unit so that the state of the refrigerant flowing out of the first expansion mechanism becomes saturated.
  • the first expansion mechanism is controlled. For this reason, in this refrigeration apparatus, almost no gas refrigerant is generated from the refrigerant flowing out of the first expansion mechanism. Therefore, with this refrigeration apparatus, it is possible to stably control the refrigerant liquid level of the liquid receiver.
  • a refrigeration apparatus is the refrigeration apparatus according to any one of the first to fourth inventions, wherein the first expansion mechanism is a first expansion valve.
  • the second expansion mechanism is a second expansion valve.
  • a control part controls distribution of the opening degree of a 1st expansion valve, and the opening degree of a 2nd expansion valve.
  • the control unit controls the distribution of the opening of the first expansion valve and the opening of the second expansion valve.
  • the first expansion mechanism force hardly generates refrigerant force gas refrigerant. Therefore, in this refrigeration apparatus, it is possible to stably control the coolant level of the receiver.
  • the outdoor unit 10 mainly includes a compressor 11, a four-way switching valve 12, an outdoor heat exchanger 13, a first electric expansion valve 15, a receiver 16, a second electric expansion valve 17, an outdoor fan 26, and a control device 23. , High pressure sensor 21, temperature sensor 22, intermediate pressure sensor 24, and the like.
  • the outdoor heat exchanger 13 can cool the high-pressure supercritical refrigerant discharged from the compressor 11 during the cooling operation using air outside the air-conditioning room as a heat source, and the indoor heat exchanger 31 during the heating operation. It is possible to evaporate the liquid refrigerant returning from.
  • the second electric expansion valve 17 depressurizes the supercritical refrigerant (during heating operation) flowing out from the low-temperature side of the indoor heat exchanger 31 or the liquid refrigerant flowing through the receiver 16 (during cooling operation) or the indoor heat exchanger 31. It is for doing.
  • the intermediate pressure sensor 24 may be removed. Good.
  • a temperature sensor is provided between the refrigerant outflow side of the first electric expansion valve 15 and the refrigerant inflow side of the second electric expansion valve 17 to measure the saturation temperature. You can do it.

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)
  • Air Conditioning Control Device (AREA)
PCT/JP2007/066846 2006-09-11 2007-08-30 Refrigeration device Ceased WO2008032578A1 (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
US12/439,954 US8205464B2 (en) 2006-09-11 2007-08-30 Refrigeration device
CN2007800333845A CN101512245B (zh) 2006-09-11 2007-08-30 制冷装置
EP07806323A EP2068094A1 (en) 2006-09-11 2007-08-30 Refrigeration device

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2006-246152 2006-09-11
JP2006246152A JP4973078B2 (ja) 2006-09-11 2006-09-11 冷凍装置

Publications (1)

Publication Number Publication Date
WO2008032578A1 true WO2008032578A1 (en) 2008-03-20

Family

ID=39183640

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2007/066846 Ceased WO2008032578A1 (en) 2006-09-11 2007-08-30 Refrigeration device

Country Status (5)

Country Link
US (1) US8205464B2 (https=)
EP (1) EP2068094A1 (https=)
JP (1) JP4973078B2 (https=)
CN (1) CN101512245B (https=)
WO (1) WO2008032578A1 (https=)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103797315A (zh) * 2011-06-13 2014-05-14 弗雷德·林格尔巴赫 用于制冷系统和方法的冷凝器蒸发器系统（ces）
US9513033B2 (en) 2011-06-13 2016-12-06 Aresco Technologies, Llc Refrigeration system and methods for refrigeration

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP5595025B2 (ja) * 2009-12-10 2014-09-24 三菱重工業株式会社 空気調和機および空気調和機の冷媒量検出方法
SG183388A1 (en) 2010-03-08 2012-09-27 Carrier Corp Capacity and pressure control in a transport refrigeration system
CN107923666B (zh) 2015-08-14 2020-08-14 丹佛斯有限公司 具有至少两个蒸发器组的蒸气压缩系统
CN108139132B (zh) * 2015-10-20 2020-08-25 丹佛斯有限公司 用于控制有可变接收器压力设定点的蒸气压缩系统的方法
BR112018007270A2 (pt) 2015-10-20 2018-10-30 Danfoss As método para controlar um sistema de compressão a vapor em modo ejetor por um tempo prolongado
CN108139130B (zh) 2015-10-20 2020-06-09 丹佛斯有限公司 用于控制处于满液状态的蒸气压缩系统的方法
US11060740B2 (en) * 2016-04-18 2021-07-13 Bertrand Michaud Air distribution system
CN110360729A (zh) * 2018-04-09 2019-10-22 珠海格力电器股份有限公司 一种机组高落差压力控制方法、装置及空调设备
DK180146B1 (en) 2018-10-15 2020-06-25 Danfoss As Intellectual Property Heat exchanger plate with strenghened diagonal area
JP7301230B2 (ja) * 2020-06-19 2023-06-30 三菱電機株式会社 冷凍サイクル装置
US20250085039A1 (en) * 2023-09-07 2025-03-13 Rheem Manufacturing Company Systems and Methods for Flash Tank Liquid Level Control

Citations (8)

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JPH0835725A (ja) * 1994-07-21 1996-02-06 Mitsubishi Electric Corp 非共沸混合冷媒を用いた冷凍空調装置
JPH10115470A (ja) 1996-08-22 1998-05-06 Nippon Soken Inc 蒸気圧縮式冷凍サイクル
JPH10148404A (ja) * 1996-11-20 1998-06-02 Matsushita Electric Ind Co Ltd 冷凍装置の制御装置
JP2001004235A (ja) * 1999-06-22 2001-01-12 Sanden Corp 蒸気圧縮式冷凍サイクル
JP2002106959A (ja) * 2000-09-28 2002-04-10 Sanyo Electric Co Ltd ヒートポンプ給湯機
JP2002168536A (ja) * 2000-11-29 2002-06-14 Mitsubishi Heavy Ind Ltd 空気調和装置
JP2004100979A (ja) * 2002-09-05 2004-04-02 Matsushita Electric Ind Co Ltd ヒートポンプ装置
JP2005214443A (ja) * 2004-01-27 2005-08-11 Sanyo Electric Co Ltd 冷凍装置

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US5431026A (en) * 1994-03-03 1995-07-11 General Electric Company Refrigerant flow rate control based on liquid level in dual evaporator two-stage refrigeration cycles
DE69732206T2 (de) * 1996-08-22 2005-12-22 Denso Corp., Kariya Kälteanlage des Dampfkompressionstyps
JP2005226866A (ja) * 2004-02-10 2005-08-25 Denso Corp 冷凍サイクル装置
JP2006138525A (ja) * 2004-11-11 2006-06-01 Hitachi Home & Life Solutions Inc 冷凍装置及び空気調和機
JP2006343017A (ja) * 2005-06-08 2006-12-21 Sanyo Electric Co Ltd 冷凍装置
JP4811204B2 (ja) * 2006-09-11 2011-11-09 ダイキン工業株式会社 冷凍装置

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0835725A (ja) * 1994-07-21 1996-02-06 Mitsubishi Electric Corp 非共沸混合冷媒を用いた冷凍空調装置
JPH10115470A (ja) 1996-08-22 1998-05-06 Nippon Soken Inc 蒸気圧縮式冷凍サイクル
JPH10148404A (ja) * 1996-11-20 1998-06-02 Matsushita Electric Ind Co Ltd 冷凍装置の制御装置
JP2001004235A (ja) * 1999-06-22 2001-01-12 Sanden Corp 蒸気圧縮式冷凍サイクル
JP2002106959A (ja) * 2000-09-28 2002-04-10 Sanyo Electric Co Ltd ヒートポンプ給湯機
JP2002168536A (ja) * 2000-11-29 2002-06-14 Mitsubishi Heavy Ind Ltd 空気調和装置
JP2004100979A (ja) * 2002-09-05 2004-04-02 Matsushita Electric Ind Co Ltd ヒートポンプ装置
JP2005214443A (ja) * 2004-01-27 2005-08-11 Sanyo Electric Co Ltd 冷凍装置

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103797315A (zh) * 2011-06-13 2014-05-14 弗雷德·林格尔巴赫 用于制冷系统和方法的冷凝器蒸发器系统（ces）
US9513033B2 (en) 2011-06-13 2016-12-06 Aresco Technologies, Llc Refrigeration system and methods for refrigeration
CN103797315B (zh) * 2011-06-13 2017-05-03 阿雷斯科技术有限公司 用于制冷系统和方法的冷凝器蒸发器系统（ces）
US10260779B2 (en) 2011-06-13 2019-04-16 Aresco Technologies, Llc Refrigeration system and methods for refrigeration
US10989445B2 (en) 2011-06-13 2021-04-27 Aresco Technologies, Llc Refrigeration system and methods for refrigeration
US11549727B2 (en) 2011-06-13 2023-01-10 Aresco Technologies, Llc Refrigeration system and methods for refrigeration

Also Published As

Publication number Publication date
CN101512245A (zh) 2009-08-19
JP4973078B2 (ja) 2012-07-11
JP2008064436A (ja) 2008-03-21
EP2068094A1 (en) 2009-06-10
CN101512245B (zh) 2010-10-06
US8205464B2 (en) 2012-06-26
US20100037641A1 (en) 2010-02-18

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