EP3483531A3 - Control device, refrigerating machine, control method, and program - Google Patents

Control device, refrigerating machine, control method, and program Download PDF

Info

Publication number
EP3483531A3
EP3483531A3 EP18205477.5A EP18205477A EP3483531A3 EP 3483531 A3 EP3483531 A3 EP 3483531A3 EP 18205477 A EP18205477 A EP 18205477A EP 3483531 A3 EP3483531 A3 EP 3483531A3
Authority
EP
European Patent Office
Prior art keywords
temperature
outlet
pressure
saturation temperature
evaporator
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Withdrawn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
EP18205477.5A
Other languages
German (de)
French (fr)
Other versions
EP3483531A2 (en
Inventor
Yuta KADOSHIMA
Masakazu Kai
Katsumi HACHISUKA
Kazumi Osada
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 Heavy Industries Thermal Systems Ltd
Original Assignee
Mitsubishi Heavy Industries Thermal Systems 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 Mitsubishi Heavy Industries Thermal Systems Ltd filed Critical Mitsubishi Heavy Industries Thermal Systems Ltd
Publication of EP3483531A2 publication Critical patent/EP3483531A2/en
Publication of EP3483531A3 publication Critical patent/EP3483531A3/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Withdrawn legal-status Critical Current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
    • 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
    • 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
    • F25B2700/197—Pressures 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
    • F25B2700/00—Sensing or detecting of parameters; Sensors therefor
    • F25B2700/21—Temperatures
    • F25B2700/2117—Temperatures of an evaporator
    • F25B2700/21175—Temperatures of an evaporator of the refrigerant at the outlet of the evaporator

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Mechanical Engineering (AREA)
  • Thermal Sciences (AREA)
  • General Engineering & Computer Science (AREA)
  • Air Conditioning Control Device (AREA)
  • Air-Conditioning For Vehicles (AREA)

Abstract

A control device includes: a pressure acquisition section which is configured to acquire an outlet pressure of an evaporator from a pressure sensor for detecting a pressure of the refrigerant at an outlet of the evaporator in the refrigeration unit; a temperature acquisition section which is configured to acquire an outlet temperature of the evaporator from a temperature sensor for detecting a temperature of the refrigerant at the outlet of the evaporator; a saturation temperature table acquisition section which is configured to acquire one of a plurality of saturation temperature tables recorded in a recording unit in the refrigeration unit, the plurality of saturation temperature tables corresponding to each of the different refrigerants, the saturation temperature table designating the gas side saturation temperature at each pressure for a corresponding refrigerant; and an expansion valve control section which is configured to control an expansion valve opening degree of an electronic expansion valve in the refrigeration unit to obtain a predetermined degree of superheat, based on the obtained saturation temperature table, the acquired outlet pressure, and the acquired outlet temperature.
EP18205477.5A 2017-11-13 2018-11-09 Control device, refrigerating machine, control method, and program Withdrawn EP3483531A3 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2017218055A JP2019090552A (en) 2017-11-13 2017-11-13 Control device, refrigerator, control method and program

Publications (2)

Publication Number Publication Date
EP3483531A2 EP3483531A2 (en) 2019-05-15
EP3483531A3 true EP3483531A3 (en) 2019-07-31

Family

ID=64959077

Family Applications (1)

Application Number Title Priority Date Filing Date
EP18205477.5A Withdrawn EP3483531A3 (en) 2017-11-13 2018-11-09 Control device, refrigerating machine, control method, and program

Country Status (2)

Country Link
EP (1) EP3483531A3 (en)
JP (1) JP2019090552A (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112944743A (en) * 2019-12-09 2021-06-11 杭州三花研究院有限公司 Control method and control system
CN112629898B (en) * 2020-11-24 2021-11-30 珠海格力电器股份有限公司 General control method based on refrigerant identification and standard refrigeration equipment
CN113237203B (en) * 2021-06-28 2023-03-28 广东美的白色家电技术创新中心有限公司 Electronic expansion valve control method and related equipment
CN113654280B (en) * 2021-08-06 2022-09-16 佛山市顺德区美的电子科技有限公司 Control method and control device for electronic expansion valve of air conditioner, air conditioner and medium

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH07253250A (en) * 1994-03-15 1995-10-03 Toshiba Corp Control device for refrigerating cycle
EP0732551A2 (en) * 1995-03-15 1996-09-18 Kabushiki Kaisha Toshiba Air conditioner control apparatus
US9234686B2 (en) * 2013-03-15 2016-01-12 Energy Recovery Systems Inc. User control interface for heat transfer system
WO2016073281A1 (en) * 2014-11-07 2016-05-12 Emerson Climate Technologies, Inc. Head pressure control

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6136671A (en) 1984-07-26 1986-02-21 三洋電機株式会社 Controller for flow rate of refrigerant
JP6380464B2 (en) 2016-06-09 2018-08-29 マツダ株式会社 Driving assistance device

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH07253250A (en) * 1994-03-15 1995-10-03 Toshiba Corp Control device for refrigerating cycle
EP0732551A2 (en) * 1995-03-15 1996-09-18 Kabushiki Kaisha Toshiba Air conditioner control apparatus
US9234686B2 (en) * 2013-03-15 2016-01-12 Energy Recovery Systems Inc. User control interface for heat transfer system
WO2016073281A1 (en) * 2014-11-07 2016-05-12 Emerson Climate Technologies, Inc. Head pressure control

Also Published As

Publication number Publication date
EP3483531A2 (en) 2019-05-15
JP2019090552A (en) 2019-06-13

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