EP2543939A3 - Refrigeration apparatus - Google Patents

Refrigeration apparatus Download PDF

Info

Publication number
EP2543939A3
EP2543939A3 EP12187178.4A EP12187178A EP2543939A3 EP 2543939 A3 EP2543939 A3 EP 2543939A3 EP 12187178 A EP12187178 A EP 12187178A EP 2543939 A3 EP2543939 A3 EP 2543939A3
Authority
EP
European Patent Office
Prior art keywords
refrigeration apparatus
supercritical refrigerant
compressor
discharge pressure
expansion mechanism
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.)
Withdrawn
Application number
EP12187178.4A
Other languages
German (de)
French (fr)
Other versions
EP2543939A2 (en
Inventor
Yoshio Ueno
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
Publication of EP2543939A2 publication Critical patent/EP2543939A2/en
Publication of EP2543939A3 publication Critical patent/EP2543939A3/en
Withdrawn legal-status Critical Current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
    • 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
    • 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
    • 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
    • F25B2313/005—Outdoor unit 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
    • F25B2313/00—Compression machines, plants or systems with reversible cycle not otherwise provided for
    • F25B2313/029—Control issues
    • F25B2313/0294—Control issues related to the outdoor fan, e.g. controlling 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
    • 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
    • F25B2500/00—Problems to be solved
    • F25B2500/12—Sound
    • 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
    • F25B2600/17—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
    • F25B2700/193—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
    • F25B2700/2106—Temperatures of fresh outdoor air
    • 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
    • F25B2700/2117—Temperatures of an evaporator
    • F25B2700/21174—Temperatures of an evaporator of the refrigerant at the inlet of the evaporator

Abstract

It is an object of the present invention to reduce occurrence of noise in an operation by inhibiting occurrence of flow sound of refrigerant. A refrigeration apparatus (1) is a refrigeration apparatus using supercritical refrigerant operating in a zone that high pressure of the supercritical refrigerant is equal to or greater than the critical pressure. The refrigeration apparatus (1) includes a compressor (21), a gas cooler (23, 31), an expansion mechanism (V2, V5), an evaporator (31, 23), discharge pressure detection means (P1, T2, T3) and a control section (5). The compressor is configured to compress the supercritical refrigerant. The gas cooler is configured to cool the supercritical refrigerant compressed by the compressor. The expansion mechanism is configured to decompress the supercritical refrigerant. The evaporator is configured to evaporate the supercritical refrigerant decompressed by the expansion mechanism. The discharge pressure detection means is capable of detecting discharge pressure of the compressor. The control section is configured to regulate the opening degree of the expansion mechanism for controlling the discharge pressure to be equal to or greater than the critical pressure when the refrigeration apparatus is activated and the discharge pressure is less than the critical pressure.
EP12187178.4A 2006-12-28 2007-12-25 Refrigeration apparatus Withdrawn EP2543939A3 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2006354392A JP4386071B2 (en) 2006-12-28 2006-12-28 Refrigeration equipment
EP07860041.8A EP2103888B1 (en) 2006-12-28 2007-12-25 Refrigerating apparatus

Related Parent Applications (3)

Application Number Title Priority Date Filing Date
EP07860041.8A Division-Into EP2103888B1 (en) 2006-12-28 2007-12-25 Refrigerating apparatus
EP07860041.8A Division EP2103888B1 (en) 2006-12-28 2007-12-25 Refrigerating apparatus
EP07860041.8 Division 2007-12-25

Publications (2)

Publication Number Publication Date
EP2543939A2 EP2543939A2 (en) 2013-01-09
EP2543939A3 true EP2543939A3 (en) 2014-04-23

Family

ID=39588454

Family Applications (2)

Application Number Title Priority Date Filing Date
EP12187178.4A Withdrawn EP2543939A3 (en) 2006-12-28 2007-12-25 Refrigeration apparatus
EP07860041.8A Active EP2103888B1 (en) 2006-12-28 2007-12-25 Refrigerating apparatus

Family Applications After (1)

Application Number Title Priority Date Filing Date
EP07860041.8A Active EP2103888B1 (en) 2006-12-28 2007-12-25 Refrigerating apparatus

Country Status (5)

Country Link
EP (2) EP2543939A3 (en)
JP (1) JP4386071B2 (en)
ES (1) ES2680501T3 (en)
TR (1) TR201810756T4 (en)
WO (1) WO2008081771A1 (en)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9046275B2 (en) 2009-03-19 2015-06-02 Daikin Industries, Ltd. Air conditioner with electromagnetic induction heating unit
JP2010223457A (en) * 2009-03-19 2010-10-07 Daikin Ind Ltd Air conditioner
JP5423083B2 (en) 2009-03-19 2014-02-19 ダイキン工業株式会社 Air conditioner
CN102356283B (en) 2009-03-19 2014-04-16 大金工业株式会社 Air conditioning device
KR101246448B1 (en) 2009-03-19 2013-03-22 다이킨 고교 가부시키가이샤 Air conditioner
KR20110092147A (en) * 2010-02-08 2011-08-17 삼성전자주식회사 Air conditioner and control method thereof
CN104896750A (en) * 2015-04-10 2015-09-09 广东美的暖通设备有限公司 A trans-critical CO2 heat pump water heater pressure control method and system
JP6998043B2 (en) * 2016-12-21 2022-01-18 アイリスオーヤマ株式会社 refrigerator
WO2018117178A1 (en) * 2016-12-21 2018-06-28 アイリスオーヤマ株式会社 Refrigerator
JP6902390B2 (en) * 2017-04-27 2021-07-14 日立ジョンソンコントロールズ空調株式会社 Refrigeration cycle equipment
JP6716037B2 (en) * 2017-07-04 2020-07-01 三菱電機株式会社 Air conditioning system

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2002144860A (en) * 2000-11-08 2002-05-22 Mitsubishi Heavy Ind Ltd Vehicular air conditioner
WO2006112924A2 (en) * 2005-04-14 2006-10-26 Carrier Corporation Method of determining optimal coefficient of performance in a transcritical vapor compression system

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2000234814A (en) 1999-02-17 2000-08-29 Aisin Seiki Co Ltd Vapor compressed refrigerating device
JP2003028522A (en) 2001-07-16 2003-01-29 Zexel Valeo Climate Control Corp Refrigerating cycle
JP2003042574A (en) * 2001-08-01 2003-02-13 Denso Corp Vapor compression refrigerator
JP4179231B2 (en) * 2004-06-09 2008-11-12 株式会社デンソー Pressure control valve and vapor compression refrigeration cycle
JP4539553B2 (en) 2005-01-28 2010-09-08 株式会社デンソー Heat pump water heater
US8186171B2 (en) 2005-02-18 2012-05-29 Carrier Corporation Method for controlling high-pressure in an intermittently supercritically operating refrigeration circuit

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2002144860A (en) * 2000-11-08 2002-05-22 Mitsubishi Heavy Ind Ltd Vehicular air conditioner
WO2006112924A2 (en) * 2005-04-14 2006-10-26 Carrier Corporation Method of determining optimal coefficient of performance in a transcritical vapor compression system

Also Published As

Publication number Publication date
TR201810756T4 (en) 2018-08-27
WO2008081771A1 (en) 2008-07-10
EP2103888A1 (en) 2009-09-23
EP2543939A2 (en) 2013-01-09
EP2103888A4 (en) 2012-06-06
EP2103888B1 (en) 2018-07-11
ES2680501T3 (en) 2018-09-07
JP4386071B2 (en) 2009-12-16
JP2008164226A (en) 2008-07-17

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