EP2584288A3 - Cooling System And Cooling Method - Google Patents

Cooling System And Cooling Method Download PDF

Info

Publication number
EP2584288A3
EP2584288A3 EP12189010.7A EP12189010A EP2584288A3 EP 2584288 A3 EP2584288 A3 EP 2584288A3 EP 12189010 A EP12189010 A EP 12189010A EP 2584288 A3 EP2584288 A3 EP 2584288A3
Authority
EP
European Patent Office
Prior art keywords
coolant liquid
coolant
storage section
liquid storage
cooling
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Withdrawn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
EP12189010.7A
Other languages
German (de)
French (fr)
Other versions
EP2584288A2 (en
Inventor
Yasuhiko Inadomi
Yasuhiro Kashirajima
Junichi Ito
Tomohiro Yoshida
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.)
Hitachi Ltd
Original Assignee
Hitachi Plant Technologies 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 Hitachi Plant Technologies Ltd filed Critical Hitachi Plant Technologies Ltd
Publication of EP2584288A2 publication Critical patent/EP2584288A2/en
Publication of EP2584288A3 publication Critical patent/EP2584288A3/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Withdrawn legal-status Critical Current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
    • F25B23/00—Machines, plants or systems, with a single mode of operation not covered by groups F25B1/00 - F25B21/00, e.g. using selective radiation effect
    • F25B23/006—Machines, plants or systems, with a single mode of operation not covered by groups F25B1/00 - F25B21/00, e.g. using selective radiation effect boiling cooling systems
    • 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
    • F25B25/00—Machines, plants or systems, using a combination of modes of operation covered by two or more of the groups F25B1/00 - F25B23/00
    • F25B25/005—Machines, plants or systems, using a combination of modes of operation covered by two or more of the groups F25B1/00 - F25B23/00 using primary and secondary systems
    • 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
    • F25B49/00—Arrangement or mounting of control or safety devices
    • F25B49/005—Arrangement or mounting of control or safety devices of safety devices
    • 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
    • F25B2500/03—Cavitations
    • 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
    • F25B2600/05—Refrigerant levels
    • 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
    • F25B2700/04—Refrigerant level

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Mechanical Engineering (AREA)
  • Thermal Sciences (AREA)
  • General Engineering & Computer Science (AREA)
  • Air Conditioning Control Device (AREA)
  • Other Air-Conditioning Systems (AREA)
  • Cooling Or The Like Of Electrical Apparatus (AREA)
  • Devices That Are Associated With Refrigeration Equipment (AREA)
  • Sorption Type Refrigeration Machines (AREA)

Abstract

Cooling system and cooling method that enable preventing breakdown of coolant pump (7) is provided. The cooling system (100), includes: evaporator (8) for evaporating coolant by heat exchange with indoor air as an object of air conditioning; condenser (5) for cooling and condensing coolant evaporated by evaporator (8); coolant liquid storage section (6) that communicates with condenser (5) and stores coolant liquid flowing in from condenser (5); coolant pump (7) that communicates with coolant liquid storage section (6) and pressure-transmits coolant liquid toward evaporator (8), the coolant liquid flowing in from coolant liquid storage section (6); coolant liquid detection units (S1, S2) for individually detecting whether or not liquid level of coolant liquid stored in coolant liquid storage section (6) is higher than or equal to respective plural heights (H1, H2) including first height (H1) and second height (H2) higher than first height (H1) in coolant liquid storage section (6); and control unit (10) that changes motor rotation speed of coolant pump (7), corresponding to detection result input from coolant liquid detection units (S1, S2).
EP12189010.7A 2011-10-18 2012-10-18 Cooling System And Cooling Method Withdrawn EP2584288A3 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2011228894A JP5806581B2 (en) 2011-10-18 2011-10-18 Cooling system and cooling method

Publications (2)

Publication Number Publication Date
EP2584288A2 EP2584288A2 (en) 2013-04-24
EP2584288A3 true EP2584288A3 (en) 2014-03-05

Family

ID=47115428

Family Applications (1)

Application Number Title Priority Date Filing Date
EP12189010.7A Withdrawn EP2584288A3 (en) 2011-10-18 2012-10-18 Cooling System And Cooling Method

Country Status (5)

Country Link
US (1) US20130091880A1 (en)
EP (1) EP2584288A3 (en)
JP (1) JP5806581B2 (en)
CN (1) CN103062968B (en)
SG (1) SG189656A1 (en)

Families Citing this family (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP6061090B2 (en) 2013-04-19 2017-01-18 スズキ株式会社 Control device for internal combustion engine
DE102014205086B3 (en) * 2014-03-19 2015-07-23 Areva Gmbh Passive two-phase cooling circuit
US9890983B1 (en) * 2014-03-31 2018-02-13 Robert Higgins Step flow chiller control device and methods therefor
JP2015230323A (en) * 2014-06-03 2015-12-21 株式会社リコー Cooling device and image forming apparatus
JP6319902B2 (en) * 2014-07-08 2018-05-09 株式会社前川製作所 Ice rink cooling equipment and cooling method
EP3015793B1 (en) * 2014-10-29 2018-01-10 LG Electronics Inc. Air conditioner and method of controlling the same
CN104567172B (en) * 2014-12-30 2017-10-17 徐州中矿大传动与自动化有限公司 A kind of intelligent water-cooled system with self-regulation ability
EP3332179B1 (en) 2015-08-04 2022-11-09 Carrier Corporation Liquid sensing for refrigerant-lubricated bearings
CN105135570A (en) * 2015-09-18 2015-12-09 南京佳力图空调机电有限公司 Fluorine pump dual-circulation water cooling unit cold accumulation system
US10458665B2 (en) 2016-09-12 2019-10-29 Hamilton Sundstrand Corporation Passive liquid collecting device
JP6927229B2 (en) * 2016-09-21 2021-08-25 日本電気株式会社 Phase change cooling device and phase change cooling method
WO2021019688A1 (en) * 2019-07-30 2021-02-04 三菱電機株式会社 Air conditioning device
JP7265963B2 (en) * 2019-08-23 2023-04-27 荏原冷熱システム株式会社 turbo chiller
CN113054222B (en) * 2019-12-27 2022-11-18 未势能源科技有限公司 Cooling system, exhaust control method and device thereof, and storage medium
US11665866B1 (en) * 2020-12-02 2023-05-30 Amazon Technologies, Inc. Cooling system with a booster
US11510345B1 (en) * 2020-12-11 2022-11-22 Amazon Technologies, Inc. Cooling system with leakage tolerance

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH02176374A (en) * 1988-12-28 1990-07-09 Sanyo Electric Co Ltd Absorption refrigerator
US5966954A (en) * 1996-12-04 1999-10-19 Sanyo Electronic Co., Ltd. Air conditioning system
EP0964158A2 (en) * 1998-06-12 1999-12-15 Linde Aktiengesellschaft Pump operating process for boiling refrigerants or coolants
US6145332A (en) * 1999-06-16 2000-11-14 Dte Energy Technologies, Inc. Apparatus for protecting pumps against cavitation
JP2004169941A (en) * 2002-11-18 2004-06-17 Ntt Power & Building Facilities Inc All year cooling type air conditioner

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2727513B2 (en) * 1989-01-31 1998-03-11 三井化学株式会社 Differential pressure measuring device
WO2000047519A1 (en) * 1999-02-10 2000-08-17 Ebara Corporation Method and apparatus for treating aqueous medium
JP2003014258A (en) * 2001-06-29 2003-01-15 Rinnai Corp Absorption air conditioner
US20030213246A1 (en) * 2002-05-15 2003-11-20 Coll John Gordon Process and device for controlling the thermal and electrical output of integrated micro combined heat and power generation systems
JP2005172416A (en) * 2003-11-21 2005-06-30 Mayekawa Mfg Co Ltd Ammonia/co2 refrigeration system
KR100882479B1 (en) * 2004-10-07 2009-02-06 엘지전자 주식회사 Thermosensitive water level sensing apparatus and fluid tank having the same
US7406839B2 (en) 2005-10-05 2008-08-05 American Power Conversion Corporation Sub-cooling unit for cooling system and method
JP2006162248A (en) * 2006-01-23 2006-06-22 Ntt Power & Building Facilities Inc Air conditioning system
JP5163286B2 (en) * 2008-05-26 2013-03-13 株式会社リコー Liquid ejection apparatus and image projection apparatus

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH02176374A (en) * 1988-12-28 1990-07-09 Sanyo Electric Co Ltd Absorption refrigerator
US5966954A (en) * 1996-12-04 1999-10-19 Sanyo Electronic Co., Ltd. Air conditioning system
EP0964158A2 (en) * 1998-06-12 1999-12-15 Linde Aktiengesellschaft Pump operating process for boiling refrigerants or coolants
US6145332A (en) * 1999-06-16 2000-11-14 Dte Energy Technologies, Inc. Apparatus for protecting pumps against cavitation
JP2004169941A (en) * 2002-11-18 2004-06-17 Ntt Power & Building Facilities Inc All year cooling type air conditioner

Also Published As

Publication number Publication date
JP5806581B2 (en) 2015-11-10
EP2584288A2 (en) 2013-04-24
CN103062968A (en) 2013-04-24
US20130091880A1 (en) 2013-04-18
SG189656A1 (en) 2013-05-31
CN103062968B (en) 2015-09-02
JP2013088027A (en) 2013-05-13

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