EP2910870B1 - Kühlvorrichtung und verfahren zur steuerung davon - Google Patents

Kühlvorrichtung und verfahren zur steuerung davon Download PDF

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Publication number
EP2910870B1
EP2910870B1 EP12884923.9A EP12884923A EP2910870B1 EP 2910870 B1 EP2910870 B1 EP 2910870B1 EP 12884923 A EP12884923 A EP 12884923A EP 2910870 B1 EP2910870 B1 EP 2910870B1
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EP
European Patent Office
Prior art keywords
temperature side
low
compressor
condenser
refrigeration apparatus
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.)
Active
Application number
EP12884923.9A
Other languages
English (en)
French (fr)
Other versions
EP2910870A4 (de
EP2910870A1 (de
Inventor
Akinori KURACHI
Tetsuya Yamashita
Takeshi Sugimoto
Takashi Ikeda
Katsunori Horiuchi
Hirofumi HARAIGAWA
Yuji TARUMI
Junichi Miyai
Nobuki Sato
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
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Mitsubishi Electric Corp
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Filing date
Publication date
Application filed by Mitsubishi Electric Corp filed Critical Mitsubishi Electric Corp
Publication of EP2910870A1 publication Critical patent/EP2910870A1/de
Publication of EP2910870A4 publication Critical patent/EP2910870A4/de
Application granted granted Critical
Publication of EP2910870B1 publication Critical patent/EP2910870B1/de
Active legal-status Critical Current
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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
    • F25B7/00—Compression machines, plants or systems, with cascade operation, i.e. with two or more circuits, the heat from the condenser of one circuit being absorbed by the evaporator of the next circuit
    • 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
    • F25B2600/02—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
    • 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
    • F25B2700/19—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
    • F25B2700/2104—Temperatures of an indoor room or compartment

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Mechanical Engineering (AREA)
  • Thermal Sciences (AREA)
  • General Engineering & Computer Science (AREA)
  • Devices That Are Associated With Refrigeration Equipment (AREA)

Claims (5)

  1. Kühlvorrichtung, umfassend:
    einen ersten Kältemittelkreislauf (11), in dem ein Kältemittel zirkuliert, wobei der erste Kältemittelkreislauf (11) einen ersten Verdichter (12), einen ersten Kondensator (13), eine erste Expansionseinrichtung (14) und einen ersten Verdampfer (15) umfasst, die nacheinander durch Leitungen verbunden sind;
    einen zweiten Kältemittelkreislauf (21), in dem ein Kältemittel zirkuliert, wobei der zweite Kältemittelkreislauf (21) einen zweiten Verdichter (22), einen zweiten Kondensator (24), einen Sammler (25), eine zweite Expansionseinrichtung (43) und einen zweiten Verdampfer (44) umfasst, die nacheinander durch Leitungen verbunden sind;
    einen Kaskadenkondensator (51), der den ersten Verdampfer (15) und den zweiten Kondensator (24) umfasst und eingerichtet ist, Wärmeaustausch zwischen dem in dem ersten Verdampfer (15) strömenden Kältemittel und dem in dem zweiten Kondensator (24) strömenden Kältemittel durchzuführen; und
    eine Steuereinheit (65), die eingerichtet ist, den Betrieb des ersten Verdichters und des zweiten Verdichters zu steuern;
    wobei der Sammler (25) unter dem Kaskadenkondensator (51) angeordnet ist, und
    dadurch gekennzeichnet, dass die Steuereinheit (65) eingerichtet ist,
    den ersten Verdichter zu aktivieren, wenn der zweite Verdichter ausgeschaltet ist, und
    eine Frequenz des ersten Verdichters und/oder einen Öffnungsgrad der ersten Expansionseinrichtung auf Grundlage eines Drucks auf einer Hochdruckseite des zweiten Kältemittelkreislaufs zu steuern, wenn der zweite Verdichter ausgeschaltet ist und der erste Verdichter eingeschaltet ist,
    wobei ein Strömungssteuerungsventil (31) an einer Leitung vorgesehen ist, die zwischen einer Auslassseite des zweiten Kondensators (24) und dem Sammler (25) verbindet, und
    die Steuereinheit (65) eingerichtet ist, das Strömungssteuerungsventil (31) zu öffnen, wenn der zweite Verdichter (22) ausgeschaltet ist und der erste Verdichter (12) eingeschaltet ist.
  2. Kühlvorrichtung nach Anspruch 1,
    wobei ein oberer Abschnitt des Sammlers (25) und eine Einlassseite des zweiten Kondensators (24) über eine Umgehungsleitung (33) und ein Magnetventil (34) miteinander verbunden sind, und
    wobei die Steuereinheit das Magnetventil (34) öffnet, wenn der zweite Verdichter (22) ausgeschaltet ist und der erste Verdichter (12) eingeschaltet ist.
  3. Kühlvorrichtung nach einem der Ansprüche 1 oder 2,
    wobei die Steuereinheit den ersten Verdichter (12) und den zweiten Verdichter (22) aktiviert, wenn ein Druck auf einer Niederdruckseite des zweiten Kältemittelkreislaufs (21) höher als ein erster vorgegebener Referenzdruck ist und ein Druck auf der Hochdruckseite des zweiten Kältemittelkreislaufs (21) gleich oder niedriger als ein zweiter vorgegebener Referenzdruck ist.
  4. Kühlvorrichtung nach einem der Ansprüche 1 bis 3,
    wobei die Steuereinheit den zweiten Verdichter (22) abschaltet, wenn der Druck auf der Niederdruckseite des zweiten Kältemittelkreislaufs (21) gleich oder niedriger als ein dritter vorgegebener Referenzdruck ist.
  5. Steuerungsverfahren einer Kühlvorrichtung, umfassend einen ersten Kältemittelkreislauf (11), in dem ein Kältemittel zirkuliert, wobei der erste Kältemittelkreislauf (11) einen ersten Verdichter (12), einen ersten Kondensator (13), eine erste Expansionseinrichtung (14) und einen ersten Verdampfer (15) umfasst, die nacheinander durch Leitungen verbunden sind; einen zweiten Kältemittelkreislauf (21), in dem ein Kältemittel zirkuliert, wobei der zweite Kältemittelkreislauf (21) einen zweiten Verdichter (22), einen zweiten Kondensator (24), einen Sammler (25), eine zweite Expansionseinrichtung (43) und einen zweiten Verdampfer (44) umfasst, die nacheinander durch Leitungen verbunden sind; und einen Kaskadenkondensator (51), der den ersten Verdampfer (15) und den zweiten Kondensator (24) umfasst und eingerichtet ist, Wärmeaustausch zwischen dem in dem ersten Verdampfer (15) strömenden Kältemittel und dem in dem zweiten Kondensator (24) strömenden Kältemittel durchzuführen, wobei der Sammler (25) unter dem Kaskadenkondensator (51) angeordnet ist, wobei das Steuerungsverfahren die folgenden Schritte umfasst:
    Aktivieren des ersten Verdichters (12), wenn der zweite Verdichter (22) ausgeschaltet ist, und
    Steuern einer Frequenz des ersten Verdichters und/oder eines Öffnungsgrads der ersten Expansionseinrichtung auf Grundlage eines Drucks auf einer Hochdruckseite des zweiten Kältemittelkreislaufs, wenn der zweite Verdichter ausgeschaltet ist und der erste Verdichter eingeschaltet ist, wobei ein Strömungssteuerungsventil (31) an einer Leitung vorgesehen ist, die zwischen einer Auslassseite des zweiten Kondensators (24) und des Sammlers (25) verbindet, und
    Öffnen des Strömungssteuerungsventils (31), wenn der zweite Verdichter (22) ausgeschaltet ist und der erste Verdichter (12) eingeschaltet ist.
EP12884923.9A 2012-09-21 2012-09-21 Kühlvorrichtung und verfahren zur steuerung davon Active EP2910870B1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/JP2012/074214 WO2014045400A1 (ja) 2012-09-21 2012-09-21 冷凍装置及びその制御方法

Publications (3)

Publication Number Publication Date
EP2910870A1 EP2910870A1 (de) 2015-08-26
EP2910870A4 EP2910870A4 (de) 2016-07-20
EP2910870B1 true EP2910870B1 (de) 2020-01-01

Family

ID=50340753

Family Applications (1)

Application Number Title Priority Date Filing Date
EP12884923.9A Active EP2910870B1 (de) 2012-09-21 2012-09-21 Kühlvorrichtung und verfahren zur steuerung davon

Country Status (3)

Country Link
EP (1) EP2910870B1 (de)
JP (1) JP5800994B2 (de)
WO (1) WO2014045400A1 (de)

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JP6160555B2 (ja) * 2014-05-08 2017-07-12 三菱重工冷熱株式会社 多元冷凍装置の圧縮機の容量制御方法
ITUB20150468A1 (it) * 2015-03-05 2016-09-05 Rivacold S R L Impianto frigorifero multistadio con controllo della pressione e metodo di controllo
EP3617612B1 (de) * 2017-04-25 2021-09-01 Mitsubishi Electric Corporation Binäre kühlvorrichtung
JP6937608B2 (ja) * 2017-05-09 2021-09-22 エア・ウォーター株式会社 超電導ケーブル用冷却装置及びそれを用いた超電導ケーブルの冷却方法
EP3643988B1 (de) * 2017-06-23 2022-03-30 Daikin Industries, Ltd. Wärmeübertragungssystem
KR101825636B1 (ko) * 2017-07-06 2018-03-22 주식회사 이너지테크놀러지스 냉방, 난방 및 급탕기능을 구비한 히트펌프
EP3479903B1 (de) * 2017-11-06 2020-09-16 Sigma Laborzentrifugen GmbH Zentrifuge
BR112020010634A2 (pt) 2017-12-18 2020-11-10 Daikin Industries, Ltd. composição compreendendo refrigerante, uso da mesma, máquina de refrigeração tendo a mesma, e método para operação da dita máquina de refrigeração
WO2019123898A1 (ja) 2017-12-18 2019-06-27 ダイキン工業株式会社 冷媒用または冷媒組成物用の冷凍機油、冷凍機油の使用方法、および、冷凍機油としての使用
US11506425B2 (en) 2017-12-18 2022-11-22 Daikin Industries, Ltd. Refrigeration cycle apparatus
JPWO2019123898A1 (ja) 2017-12-18 2020-12-10 ダイキン工業株式会社 冷媒用または冷媒組成物用の冷凍機油、冷凍機油の使用方法、および、冷凍機油としての使用
US11493244B2 (en) 2017-12-18 2022-11-08 Daikin Industries, Ltd. Air-conditioning unit
US11820933B2 (en) 2017-12-18 2023-11-21 Daikin Industries, Ltd. Refrigeration cycle apparatus
US11549041B2 (en) 2017-12-18 2023-01-10 Daikin Industries, Ltd. Composition containing refrigerant, use of said composition, refrigerator having said composition, and method for operating said refrigerator
US11906207B2 (en) 2017-12-18 2024-02-20 Daikin Industries, Ltd. Refrigeration apparatus
US11365335B2 (en) 2017-12-18 2022-06-21 Daikin Industries, Ltd. Composition comprising refrigerant, use thereof, refrigerating machine having same, and method for operating said refrigerating machine
US11435118B2 (en) 2017-12-18 2022-09-06 Daikin Industries, Ltd. Heat source unit and refrigeration cycle apparatus
US11441802B2 (en) 2017-12-18 2022-09-13 Daikin Industries, Ltd. Air conditioning apparatus
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US11441819B2 (en) 2017-12-18 2022-09-13 Daikin Industries, Ltd. Refrigeration cycle apparatus
RU188096U1 (ru) * 2018-12-18 2019-03-29 Акционерное общество "Научно-технический комплекс "Криогенная техника" Холодильная установка на транскритическом цикле двуокиси углерода
JP7456107B2 (ja) * 2019-09-24 2024-03-27 富士電機株式会社 二元冷凍機
US11112147B2 (en) * 2019-10-24 2021-09-07 M.D, Mechanical Devices Ltd. Cooling system with controlled biphase mixing of refrigerant
WO2022118843A1 (ja) * 2020-12-01 2022-06-09 ダイキン工業株式会社 冷凍サイクルシステム
WO2023012960A1 (ja) * 2021-08-05 2023-02-09 三菱電機株式会社 冷凍サイクル装置、及び冷凍サイクル装置の制御方法
JPWO2023012961A1 (de) * 2021-08-05 2023-02-09
WO2023223558A1 (ja) * 2022-05-20 2023-11-23 三菱電機株式会社 二元冷凍装置

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Also Published As

Publication number Publication date
EP2910870A4 (de) 2016-07-20
JP5800994B2 (ja) 2015-10-28
WO2014045400A1 (ja) 2014-03-27
EP2910870A1 (de) 2015-08-26
JPWO2014045400A1 (ja) 2016-08-18

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