EP2647925A3 - Refrigeration cycle apparatus - Google Patents

Refrigeration cycle apparatus Download PDF

Info

Publication number
EP2647925A3
EP2647925A3 EP13166592.9A EP13166592A EP2647925A3 EP 2647925 A3 EP2647925 A3 EP 2647925A3 EP 13166592 A EP13166592 A EP 13166592A EP 2647925 A3 EP2647925 A3 EP 2647925A3
Authority
EP
European Patent Office
Prior art keywords
temperature
refrigerant
radiator
outlet
detection means
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.)
Granted
Application number
EP13166592.9A
Other languages
German (de)
French (fr)
Other versions
EP2647925B1 (en
EP2647925A2 (en
Inventor
Takashi Okazaki
Fumitake Unezaki
Tomoyoshi Oobayashi
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.)
Mitsubishi Electric Corp
Original Assignee
Mitsubishi Electric 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 Mitsubishi Electric Corp filed Critical Mitsubishi Electric Corp
Publication of EP2647925A2 publication Critical patent/EP2647925A2/en
Publication of EP2647925A3 publication Critical patent/EP2647925A3/en
Application granted granted Critical
Publication of EP2647925B1 publication Critical patent/EP2647925B1/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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
    • 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
    • F25B2339/00—Details of evaporators; Details of condensers
    • F25B2339/04—Details of condensers
    • F25B2339/047—Water-cooled condensers
    • 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
    • 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
    • F25B2700/1933—Suction 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
    • 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
    • F25B2700/2115—Temperatures of a compressor or the drive means therefor
    • F25B2700/21151—Temperatures of a compressor or the drive means therefor at the suction side of the 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
    • F25B2700/00—Sensing or detecting of parameters; Sensors therefor
    • F25B2700/21—Temperatures
    • F25B2700/2115—Temperatures of a compressor or the drive means therefor
    • F25B2700/21152—Temperatures of a compressor or the drive means therefor at the discharge side of the 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
    • F25B2700/00—Sensing or detecting of parameters; Sensors therefor
    • F25B2700/21—Temperatures
    • F25B2700/2116—Temperatures of a condenser
    • F25B2700/21161—Temperatures of a condenser of the fluid heated by 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
    • 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
    • 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

Abstract

A refrigerant cycle apparatus comprising:
a compressor (1), a radiator (2), decompression means (3), a heat absorber (4), an internal heat exchanger (5) that performs heat exchange between a refrigerant at an outlet of said radiator and the refrigerant at an outlet of said heat absorber, wherein first temperature detection means (30) for detecting a refrigerant temperature between an outlet of the compressor (1) and an inlet of the radiator (2) and second temperature detection means (31) for detecting the refrigerant temperature between the outlet of the radiator (2) and a high-pressure side inlet of the internal heat exchanger (5) are provided, and
an opening degree of decompression means (3) is controlled so that a temperature difference (ΔT) between a detection temperature by the first temperature detection means (30) and the detection temperature by the second temperature detection means (31) becomes a target value.
EP13166592.9A 2007-11-30 2008-11-20 Refrigeration cycle apparatus Active EP2647925B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2007310097A JP4948374B2 (en) 2007-11-30 2007-11-30 Refrigeration cycle equipment
EP08855672.5A EP2196745B1 (en) 2007-11-30 2008-11-20 Refrigeration cycle device

Related Parent Applications (3)

Application Number Title Priority Date Filing Date
EP08855672.5A Division EP2196745B1 (en) 2007-11-30 2008-11-20 Refrigeration cycle device
EP08855672.5A Division-Into EP2196745B1 (en) 2007-11-30 2008-11-20 Refrigeration cycle device
EP08855672.5 Division 2008-11-20

Publications (3)

Publication Number Publication Date
EP2647925A2 EP2647925A2 (en) 2013-10-09
EP2647925A3 true EP2647925A3 (en) 2015-08-05
EP2647925B1 EP2647925B1 (en) 2016-12-21

Family

ID=40678426

Family Applications (5)

Application Number Title Priority Date Filing Date
EP13166593.7A Active EP2647926B1 (en) 2007-11-30 2008-11-20 Refrigeration cycle apparatus
EP13166596.0A Active EP2647928B1 (en) 2007-11-30 2008-11-20 Refrigeration cycle apparatus
EP13166592.9A Active EP2647925B1 (en) 2007-11-30 2008-11-20 Refrigeration cycle apparatus
EP13166595.2A Active EP2647927B1 (en) 2007-11-30 2008-11-20 Refrigeration cycle apparatus
EP08855672.5A Active EP2196745B1 (en) 2007-11-30 2008-11-20 Refrigeration cycle device

Family Applications Before (2)

Application Number Title Priority Date Filing Date
EP13166593.7A Active EP2647926B1 (en) 2007-11-30 2008-11-20 Refrigeration cycle apparatus
EP13166596.0A Active EP2647928B1 (en) 2007-11-30 2008-11-20 Refrigeration cycle apparatus

Family Applications After (2)

Application Number Title Priority Date Filing Date
EP13166595.2A Active EP2647927B1 (en) 2007-11-30 2008-11-20 Refrigeration cycle apparatus
EP08855672.5A Active EP2196745B1 (en) 2007-11-30 2008-11-20 Refrigeration cycle device

Country Status (7)

Country Link
US (1) US20100205987A1 (en)
EP (5) EP2647926B1 (en)
JP (1) JP4948374B2 (en)
CN (2) CN101842645B (en)
DK (5) DK2647925T3 (en)
ES (5) ES2650233T3 (en)
WO (1) WO2009069524A1 (en)

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CN103635761A (en) * 2011-08-04 2014-03-12 三菱电机株式会社 Refrigeration device
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JP5831423B2 (en) * 2012-10-08 2015-12-09 株式会社デンソー Refrigeration cycle equipment
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JP2017088137A (en) * 2015-11-17 2017-05-25 株式会社ヴァレオジャパン Refrigeration cycle of vehicular air conditioner and vehicle mounted with the same
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JP6704505B2 (en) * 2017-03-09 2020-06-03 三菱電機株式会社 Heat pump water heater
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AT522875B1 (en) * 2019-10-30 2021-03-15 Lambda Waermepumpen Gmbh Method for controlling an expansion valve
DE102020115274A1 (en) 2020-06-09 2021-12-09 Stiebel Eltron Gmbh & Co. Kg Method for operating a compression refrigeration system
JP7014988B1 (en) * 2020-12-02 2022-02-02 ダイキン工業株式会社 Refrigeration equipment
WO2022162819A1 (en) * 2021-01-28 2022-08-04 日立ジョンソンコントロールズ空調株式会社 Air-conditioning device
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Also Published As

Publication number Publication date
EP2647927B1 (en) 2020-09-16
EP2647928A2 (en) 2013-10-09
EP2647926A2 (en) 2013-10-09
CN101842645A (en) 2010-09-22
EP2647928B1 (en) 2016-10-26
EP2647926A3 (en) 2015-07-29
CN102425872B (en) 2014-06-25
WO2009069524A1 (en) 2009-06-04
ES2605462T3 (en) 2017-03-14
EP2647925B1 (en) 2016-12-21
EP2647925A2 (en) 2013-10-09
JP4948374B2 (en) 2012-06-06
CN101842645B (en) 2012-11-28
US20100205987A1 (en) 2010-08-19
EP2196745B1 (en) 2017-11-08
EP2647927A3 (en) 2015-07-29
EP2647928A3 (en) 2015-08-05
ES2823758T3 (en) 2021-05-10
ES2700938T3 (en) 2019-02-20
DK2647926T3 (en) 2019-01-07
EP2196745A4 (en) 2013-02-13
EP2196745A1 (en) 2010-06-16
CN102425872A (en) 2012-04-25
DK2647925T3 (en) 2017-02-06
ES2650233T3 (en) 2018-01-17
DK2647928T3 (en) 2016-12-12
DK2647927T3 (en) 2020-10-19
JP2009133547A (en) 2009-06-18
DK2196745T3 (en) 2017-12-11
ES2611980T3 (en) 2017-05-11
EP2647926B1 (en) 2018-10-24
EP2647927A2 (en) 2013-10-09

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