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EP4137756A4 - Heat source unit, refrigeration cycle device, and refrigerator - Google Patents

Heat source unit, refrigeration cycle device, and refrigerator Download PDF

Info

Publication number
EP4137756A4
EP4137756A4 EP20931630.6A EP20931630A EP4137756A4 EP 4137756 A4 EP4137756 A4 EP 4137756A4 EP 20931630 A EP20931630 A EP 20931630A EP 4137756 A4 EP4137756 A4 EP 4137756A4
Authority
EP
European Patent Office
Prior art keywords
refrigerator
heat source
source unit
refrigeration cycle
cycle device
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.)
Pending
Application number
EP20931630.6A
Other languages
German (de)
French (fr)
Other versions
EP4137756A1 (en
Inventor
Yusuke Arii
Hiroki Sato
Kota Suzuki
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 EP4137756A1 publication Critical patent/EP4137756A1/en
Publication of EP4137756A4 publication Critical patent/EP4137756A4/en
Pending 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
    • F25B31/00—Compressor arrangements
    • F25B31/002—Lubrication
    • F25B31/004—Lubrication oil recirculating 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
    • F25B31/00—Compressor arrangements
    • F25B31/006—Cooling of compressor or motor
    • 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
    • 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
    • F25B43/00—Arrangements for separating or purifying gases or liquids; Arrangements for vaporising the residuum of liquid refrigerant, e.g. by heat
    • F25B43/02—Arrangements for separating or purifying gases or liquids; Arrangements for vaporising the residuum of liquid refrigerant, e.g. by heat for separating lubricants from the refrigerant
    • 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
    • F25B49/02—Arrangement or mounting of control or safety devices for compression type machines, plants or 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
    • 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
    • F25B2500/00—Problems to be solved
    • F25B2500/28—Means for preventing liquid refrigerant entering into 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
    • F25B2600/00—Control issues
    • F25B2600/02—Compressor control
    • F25B2600/025—Compressor control by controlling speed
    • F25B2600/0251—Compressor control by controlling speed with on-off operation
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Mechanical Engineering (AREA)
  • Thermal Sciences (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Power Engineering (AREA)
  • Applications Or Details Of Rotary Compressors (AREA)
  • Compression-Type Refrigeration Machines With Reversible Cycles (AREA)
EP20931630.6A 2020-04-14 2020-04-14 Heat source unit, refrigeration cycle device, and refrigerator Pending EP4137756A4 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/JP2020/016420 WO2021210064A1 (en) 2020-04-14 2020-04-14 Heat source unit, refrigeration cycle device, and refrigerator

Publications (2)

Publication Number Publication Date
EP4137756A1 EP4137756A1 (en) 2023-02-22
EP4137756A4 true EP4137756A4 (en) 2023-08-16

Family

ID=78083843

Family Applications (1)

Application Number Title Priority Date Filing Date
EP20931630.6A Pending EP4137756A4 (en) 2020-04-14 2020-04-14 Heat source unit, refrigeration cycle device, and refrigerator

Country Status (3)

Country Link
EP (1) EP4137756A4 (en)
JP (1) JP7330367B2 (en)
WO (1) WO2021210064A1 (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2023161663A (en) * 2022-04-26 2023-11-08 シーピーエンジニアリング株式会社 Frozen dessert manufacturing equipment
JP2024011228A (en) * 2022-07-14 2024-01-25 三菱重工業株式会社 refrigeration system
GB2634430A (en) * 2022-07-27 2025-04-09 Mitsubishi Electric Corp Refrigeration cycle device
JP7578883B2 (en) * 2022-09-30 2024-11-07 ダイキン工業株式会社 Refrigeration Cycle Equipment
WO2024106478A1 (en) * 2022-11-17 2024-05-23 パナソニックＩｐマネジメント株式会社 Refrigeration system and accumulator
CN115854594B (en) * 2022-12-26 2025-04-22 珠海格力电器股份有限公司 Oil balancing control method, device and air conditioning unit

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106052178A (en) * 2016-05-29 2016-10-26 湖南大学 Two-stage refrigerating circulation system with economizer and oil cooling compression
CN109140829B (en) * 2018-08-13 2019-11-19 珠海格力电器股份有限公司 Compressor oil-returning structure, refrigeration unit and air-conditioning system
CN110966202A (en) * 2018-09-30 2020-04-07 广东美芝精密制造有限公司 Compressor assembly, control method of compressor assembly and refrigeration equipment

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0452466A (en) * 1990-06-18 1992-02-20 Daikin Ind Ltd Refrigeration equipment and refrigeration equipment operation control equipment
JP3238973B2 (en) * 1993-02-01 2001-12-17 三洋電機株式会社 Refrigeration equipment
JP2001289519A (en) * 2000-04-06 2001-10-19 Mitsubishi Electric Corp Refrigerating apparatus
JP5903595B2 (en) * 2011-05-27 2016-04-13 パナソニックＩｐマネジメント株式会社 Ultra-low temperature refrigeration equipment
JP6324530B2 (en) * 2014-11-20 2018-05-16 三菱電機株式会社 Refrigeration cycle equipment
JP2017116136A (en) * 2015-12-22 2017-06-29 パナソニックＩｐマネジメント株式会社 Air conditioner
WO2019021360A1 (en) * 2017-07-25 2019-01-31 三菱電機株式会社 Refrigeration cycle device
WO2019026270A1 (en) 2017-08-04 2019-02-07 三菱電機株式会社 Refrigeration cycle device and heat source unit

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106052178A (en) * 2016-05-29 2016-10-26 湖南大学 Two-stage refrigerating circulation system with economizer and oil cooling compression
CN109140829B (en) * 2018-08-13 2019-11-19 珠海格力电器股份有限公司 Compressor oil-returning structure, refrigeration unit and air-conditioning system
CN110966202A (en) * 2018-09-30 2020-04-07 广东美芝精密制造有限公司 Compressor assembly, control method of compressor assembly and refrigeration equipment

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See also references of WO2021210064A1 *

Also Published As

Publication number Publication date
EP4137756A1 (en) 2023-02-22
JPWO2021210064A1 (en) 2021-10-21
JP7330367B2 (en) 2023-08-21
WO2021210064A1 (en) 2021-10-21

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