EP2535671A3 - System for the refrigeration of a liquid and method for controlling said system - Google Patents

System for the refrigeration of a liquid and method for controlling said system Download PDF

Info

Publication number
EP2535671A3
EP2535671A3 EP12171665.8A EP12171665A EP2535671A3 EP 2535671 A3 EP2535671 A3 EP 2535671A3 EP 12171665 A EP12171665 A EP 12171665A EP 2535671 A3 EP2535671 A3 EP 2535671A3
Authority
EP
European Patent Office
Prior art keywords
air
cooled
cooling coil
cooled cooling
circuit
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
EP12171665.8A
Other languages
German (de)
French (fr)
Other versions
EP2535671A2 (en
EP2535671B1 (en
Inventor
Mariano Covolo
Pierluigi Marsan
Francesco Fadigà
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 Hydronics and IT Cooling Systems SpA
Original Assignee
Climaveneta SpA
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 Climaveneta SpA filed Critical Climaveneta SpA
Publication of EP2535671A2 publication Critical patent/EP2535671A2/en
Publication of EP2535671A3 publication Critical patent/EP2535671A3/en
Application granted granted Critical
Publication of EP2535671B1 publication Critical patent/EP2535671B1/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
    • 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
    • F25B41/00—Fluid-circulation arrangements

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Mechanical Engineering (AREA)
  • Thermal Sciences (AREA)
  • General Engineering & Computer Science (AREA)
  • Other Air-Conditioning Systems (AREA)
  • Sorption Type Refrigeration Machines (AREA)
  • Devices That Are Associated With Refrigeration Equipment (AREA)

Abstract

A system for the refrigeration of a liquid suitable for circulating between at least one inlet (1) and at least one outlet (2) of a primary liquid cooling circuit (3), comprises at least a first air-cooled refrigeration unit (4) having at least a first air-cooled cooling coil (6) inserted on the primary liquid cooling circuit (3), at least a second refrigeration unit (5) with a cooling cycle having at least one evaporator (7) inserted on the primary liquid cooling circuit (3) in cascade with the first air-cooled cooling coil (6), means for shutting off the first air-cooled cooling coil (6) from the primary liquid cooling circuit (3), forced air ventilation means suitable for acting on at least the first air-cooled cooling coil (6) and on at least a second air-cooled cooling coil (10) provided for at least one condenser of the second refrigeration unit (5) for condensing the refrigerant fluid operating in the cooling cycle, there being further provided a secondary liquid circuit (13) on which at least the first air-cooled cooling coil (6) and at least one secondary exchanger (14) for subcooling the refrigerant fluid leaving the second air-cooled cooling coil are inserted.
EP12171665.8A 2011-06-13 2012-06-12 System for the refrigeration of a liquid Active EP2535671B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT001061A ITMI20111061A1 (en) 2011-06-13 2011-06-13 PLANT FOR THE REFRIGERATION OF A LIQUID AND METHOD OF CONTROL OF SUCH SYSTEM

Publications (3)

Publication Number Publication Date
EP2535671A2 EP2535671A2 (en) 2012-12-19
EP2535671A3 true EP2535671A3 (en) 2015-07-08
EP2535671B1 EP2535671B1 (en) 2021-09-08

Family

ID=44555104

Family Applications (1)

Application Number Title Priority Date Filing Date
EP12171665.8A Active EP2535671B1 (en) 2011-06-13 2012-06-12 System for the refrigeration of a liquid

Country Status (2)

Country Link
EP (1) EP2535671B1 (en)
IT (1) ITMI20111061A1 (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ITUA20162491A1 (en) * 2016-04-11 2017-10-11 Climaveneta S P A "FREE COOLING" REFRIGERATION PLANT WITH FRIGORIGEN FLUID COOLING UNDER THE COOLER
IT201900021486A1 (en) 2019-11-18 2021-05-18 Mitsubishi Electric Hydronics & It Cooling Systems S P A IMPROVED ARRANGEMENT OF AIR-COOLED REFRIGERATION CYCLE
CN114740915B (en) * 2022-03-18 2023-12-22 北京京仪自动化装备技术股份有限公司 Temperature control equipment capable of realizing double precooling and temperature control method
CN115006866B (en) * 2022-08-04 2022-10-21 东营海瑞宝新材料有限公司 Polyurea production is with dewatering device who has steam condensation backward flow prevention function

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2218499A (en) * 1988-05-09 1989-11-15 Mitsubishi Electric Corp Air-cooled cooling apparatus
EP1134523A1 (en) * 2000-03-16 2001-09-19 RC Group S.p.A. Chilling unit with "free-cooling", designed to operate also with variable flow rate; system and process
EP2233863A2 (en) * 2009-03-24 2010-09-29 Johnson Controls Techonology Company Free cooling refrigeration system

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2218499A (en) * 1988-05-09 1989-11-15 Mitsubishi Electric Corp Air-cooled cooling apparatus
EP1134523A1 (en) * 2000-03-16 2001-09-19 RC Group S.p.A. Chilling unit with "free-cooling", designed to operate also with variable flow rate; system and process
EP2233863A2 (en) * 2009-03-24 2010-09-29 Johnson Controls Techonology Company Free cooling refrigeration system

Also Published As

Publication number Publication date
ITMI20111061A1 (en) 2012-12-14
EP2535671A2 (en) 2012-12-19
EP2535671B1 (en) 2021-09-08

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