WO2007029390A1 - Système de commande pour machine réfrigérante employant un réfrigérant non azéotrope - Google Patents

Système de commande pour machine réfrigérante employant un réfrigérant non azéotrope Download PDF

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Publication number
WO2007029390A1
WO2007029390A1 PCT/JP2006/311961 JP2006311961W WO2007029390A1 WO 2007029390 A1 WO2007029390 A1 WO 2007029390A1 JP 2006311961 W JP2006311961 W JP 2006311961W WO 2007029390 A1 WO2007029390 A1 WO 2007029390A1
Authority
WO
WIPO (PCT)
Prior art keywords
refrigerant
evaporator
temperature
pressure
internal temperature
Prior art date
Application number
PCT/JP2006/311961
Other languages
English (en)
Japanese (ja)
Inventor
Susumu Kurita
Nobuyoshi Kurita
Original Assignee
Dairei Co., Ltd.
Nihon Freezer Co., 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 Dairei Co., Ltd., Nihon Freezer Co., Ltd. filed Critical Dairei Co., Ltd.
Priority to EP06766729A priority Critical patent/EP1923645A4/fr
Priority to US11/658,182 priority patent/US20080302116A1/en
Publication of WO2007029390A1 publication Critical patent/WO2007029390A1/fr

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
    • 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
    • F25B9/006—Compression machines, plants or systems, in which the refrigerant is air or other gas of low boiling point characterised by the refrigerant the refrigerant containing more than one component
    • 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
    • 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
    • F25B41/385—Dispositions with two or more expansion means arranged in parallel 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
    • F25B2500/00—Problems to be solved
    • F25B2500/26—Problems to be solved characterised by the startup of the refrigeration 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
    • 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
    • F25B2700/21—Temperatures
    • F25B2700/2104—Temperatures of an indoor room or compartment
    • 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
    • F25B40/00—Subcoolers, desuperheaters or superheaters

Definitions

  • the present invention in a refrigeration system using a non-azeotropic refrigerant mixture, has a large scale, particularly in a freezer warehouse, and therefore requires a large capacity for starting up to a predetermined freezer temperature or
  • the present invention relates to a freezer for a freezer having a large fluctuation in the internal temperature due to the necessity of opening the door widely when taking in and out the contents.
  • Patent Document 1 Japanese Patent Laid-Open No. 11 99498
  • Freezer structure Prefabricated structure with double doors
  • Compressor discharge Compressor suction Heat exchanger Heat exchanger Operation
  • Compressor discharge Compressor suction
  • the inner wall of the container and the storage in the frozen state are already at the set temperature.
  • the greatly elevated interior atmosphere and new contents are subject to cooling. Therefore, the cooling load from the viewpoint of heat capacity is relatively small, but the cooling temperature range is large, and the refrigeration system of the present invention that has a quick response to the temperature change in the refrigerator has the contents in such a freezer. It is possible to quickly return to the steady operating temperature with respect to temperature changes caused by taking in and out, etc., and it is also suitable for the actual usage of the freezer.

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Mechanical Engineering (AREA)
  • Thermal Sciences (AREA)
  • General Engineering & Computer Science (AREA)
  • Devices That Are Associated With Refrigeration Equipment (AREA)

Abstract

L'invention permet d'améliorer les performances initiales d’excursion d’une machine réfrigérante employant un réfrigérant non azéotrope immédiatement après le démarrage lorsque la température de la chambre est élevée. L'invention concerne donc une machine réfrigérante à un seul niveau employant un réfrigérant non azéotrope et possédant un compresseur (1), un condenseur (2), et un évaporateur (10), et dans laquelle l’échange thermique (3) réalisé entre le réfrigérant retourné de l’évaporateur et le réfrigérant haute pression s’écoulant du condenseur vers l’évaporateur est contrôlé de la manière suivante. Si une charge importante est imposée comme c'est le cas juste après le démarrage, des tubes capillaires (6-1) à (6-5) faisant office de valves de dilatation pour l’évaporateur sont grands ouverts avec des valves électromagnétiques (5-1) à (5-5). Tandis que la température interne de la chambre décline, les tubes sont fermés de manière successive. Ainsi, la pression et le débit du gaz réfrigérant sont régulés. Si la température interne de la chambre est élevée et la condensation d’un ingrédient à faible point d’ébullition ne se déroule pas, la capacité réfrigérante d’un réfrigérant à haut point d’ébullition peut devenir maximale.
PCT/JP2006/311961 2002-12-03 2006-06-14 Système de commande pour machine réfrigérante employant un réfrigérant non azéotrope WO2007029390A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
EP06766729A EP1923645A4 (fr) 2005-09-08 2006-06-14 Système de commande pour machine réfrigérante employant un réfrigérant non azéotrope
US11/658,182 US20080302116A1 (en) 2002-12-03 2006-06-14 Refrigerating Control System Using Non-Azeotropic Refrigerant

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2005-260151 2005-09-08
JP2005260151A JP2007071468A (ja) 2005-09-08 2005-09-08 非共沸冷媒を用いた冷凍機制御システム

Publications (1)

Publication Number Publication Date
WO2007029390A1 true WO2007029390A1 (fr) 2007-03-15

Family

ID=37835521

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2006/311961 WO2007029390A1 (fr) 2002-12-03 2006-06-14 Système de commande pour machine réfrigérante employant un réfrigérant non azéotrope

Country Status (7)

Country Link
US (1) US20080302116A1 (fr)
EP (1) EP1923645A4 (fr)
JP (1) JP2007071468A (fr)
KR (1) KR20080042035A (fr)
CN (1) CN101128707A (fr)
TW (1) TWI310827B (fr)
WO (1) WO2007029390A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2011530280A (ja) * 2008-08-06 2011-12-22 リジェネランド エス．アール．エル． 細胞培養装置

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101416004A (zh) * 2006-03-30 2009-04-22 开利公司 运输制冷单元
JP2010043758A (ja) * 2008-08-08 2010-02-25 Fuji Electric Retail Systems Co Ltd 冷却装置
DE102011006174B4 (de) * 2011-03-25 2014-07-24 Bruker Biospin Ag Kältevorrichtung mit steuerbarer Verdampfungstemperatur
DE102013005476A1 (de) * 2012-04-01 2013-10-02 Liebherr-Hausgeräte Ochsenhausen GmbH Kühl- und/oder Gefriergerät
US8739567B2 (en) 2012-06-08 2014-06-03 General Electric Company Dual evaporator refrigeration system using zeotropic refrigerant mixture
CN105371546A (zh) * 2014-08-25 2016-03-02 谢德音 可变换冷媒蒸发流量及控制冷媒通道的方法
DK181305B1 (en) * 2019-01-15 2023-08-07 Maersk Container Ind A/S CALIBRATION OF COOLANT SATURATION TEMPERATURE IN A COOLING SYSTEM
CN114719471A (zh) * 2022-03-08 2022-07-08 澳柯玛股份有限公司 一种混合制冷剂制冷系统及制冷方法

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5984052A (ja) * 1982-11-05 1984-05-15 三菱重工業株式会社 冷凍装置の能力制御方法
JPH01200155A (ja) * 1988-02-03 1989-08-11 Yazaki Corp 冷媒量の制御方法および装置
JP2002039637A (ja) * 2000-07-25 2002-02-06 Shin Meiwa Ind Co Ltd 冷凍機、および冷凍方法
JP2003021473A (ja) * 2001-07-03 2003-01-24 Nihon Freezer Kk 非共沸冷媒を用いた冷凍循環システム用熱交換器

Family Cites Families (10)

* Cited by examiner, † Cited by third party
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JPS5924161A (ja) * 1982-07-30 1984-02-07 三菱電機株式会社 冷凍、冷蔵庫
US4580415A (en) * 1983-04-22 1986-04-08 Mitsubishi Denki Kabushiki Kaisha Dual refrigerant cooling system
AU581569B2 (en) * 1986-06-06 1989-02-23 Mitsubishi Denki Kabushiki Kaisha Multiroom air conditioner
JPH0650646A (ja) * 1992-07-31 1994-02-25 Sanyo Electric Co Ltd 冷蔵庫
JPH11118202A (ja) * 1997-08-13 1999-04-30 Toshiba Corp スプリットエアコン
JP2002062020A (ja) * 2000-08-17 2002-02-28 Toshiba Corp 冷蔵庫
US6631621B2 (en) * 2001-07-03 2003-10-14 Thermo King Corporation Cryogenic temperature control apparatus and method
US7299653B2 (en) * 2002-12-03 2007-11-27 Nihon Freezer Co., Ltd. Refrigerator system using non-azeotropic refrigerant, and non-azeotropic refrigerant for very low temperature used for the system
JP2004198063A (ja) * 2002-12-20 2004-07-15 Sanyo Electric Co Ltd 非共沸混合冷媒および冷凍サイクル、並びに冷凍装置
JP4307878B2 (ja) * 2003-03-24 2009-08-05 三洋電機株式会社 冷媒サイクル装置

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5984052A (ja) * 1982-11-05 1984-05-15 三菱重工業株式会社 冷凍装置の能力制御方法
JPH01200155A (ja) * 1988-02-03 1989-08-11 Yazaki Corp 冷媒量の制御方法および装置
JP2002039637A (ja) * 2000-07-25 2002-02-06 Shin Meiwa Ind Co Ltd 冷凍機、および冷凍方法
JP2003021473A (ja) * 2001-07-03 2003-01-24 Nihon Freezer Kk 非共沸冷媒を用いた冷凍循環システム用熱交換器

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2011530280A (ja) * 2008-08-06 2011-12-22 リジェネランド エス．アール．エル． 細胞培養装置

Also Published As

Publication number Publication date
JP2007071468A (ja) 2007-03-22
CN101128707A (zh) 2008-02-20
KR20080042035A (ko) 2008-05-14
US20080302116A1 (en) 2008-12-11
TWI310827B (en) 2009-06-11
EP1923645A1 (fr) 2008-05-21
EP1923645A4 (fr) 2009-02-18
TW200710355A (en) 2007-03-16

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