DE602007011830D1 - COOLING SYSTEM AND METHOD FOR CONTROLLING COMPRESSOR PLANTS IN SUCH A COOLING SYSTEM - Google Patents

COOLING SYSTEM AND METHOD FOR CONTROLLING COMPRESSOR PLANTS IN SUCH A COOLING SYSTEM

Info

Publication number
DE602007011830D1
DE602007011830D1 DE602007011830T DE602007011830T DE602007011830D1 DE 602007011830 D1 DE602007011830 D1 DE 602007011830D1 DE 602007011830 T DE602007011830 T DE 602007011830T DE 602007011830 T DE602007011830 T DE 602007011830T DE 602007011830 D1 DE602007011830 D1 DE 602007011830D1
Authority
DE
Germany
Prior art keywords
compressors
heat exchanger
cold carrier
cold
refrigerant
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
DE602007011830T
Other languages
German (de)
Inventor
Heinz Gassen
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.)
Carrier Corp
Original Assignee
Carrier 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 Carrier Corp filed Critical Carrier Corp
Publication of DE602007011830D1 publication Critical patent/DE602007011830D1/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
    • 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
    • F25B49/022—Compressor control 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
    • 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
    • F25B2339/00—Details of evaporators; Details of condensers
    • F25B2339/04—Details of condensers
    • F25B2339/047—Water-cooled condensers
    • 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
    • F25B2400/00—General features or devices for refrigeration machines, plants or systems, combined heating and refrigeration systems or heat-pump systems, i.e. not limited to a particular subgroup of F25B
    • F25B2400/06—Several compression cycles arranged in parallel
    • 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
    • F25B2400/00—General features or devices for refrigeration machines, plants or systems, combined heating and refrigeration systems or heat-pump systems, i.e. not limited to a particular subgroup of F25B
    • F25B2400/07—Details of compressors or related parts
    • F25B2400/075—Details of compressors or related parts with parallel compressors
    • 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
    • F25B2600/01—Timing
    • 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
    • F25B2600/02—Compressor control
    • F25B2600/027—Compressor control by controlling pressure
    • F25B2600/0272—Compressor control by controlling pressure the suction pressure
    • 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
    • F25B2700/2117—Temperatures of an evaporator
    • F25B2700/21171—Temperatures of an evaporator of the fluid cooled by the evaporator
    • F25B2700/21172—Temperatures of an evaporator of the fluid cooled by the evaporator at the inlet
    • 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
    • F25B2700/21171—Temperatures of an evaporator of the fluid cooled by the evaporator
    • F25B2700/21173—Temperatures of an evaporator of the fluid cooled by the evaporator at the outlet

Abstract

A refrigerating system (2) according to the invention comprises at least one refrigerant circuit (4) having a set of compressors (6, 8, 10), each of said compressors (6, 8, 10) being operable at least one compressor power stage, a control unit for the set of compressors (6, 8, 10), a liquefied (12), an evaporator also forming a heat exchanger (14), refrigerant conduits connecting the set of compressors (6, 8, 10), the liquefied (12), and the heat exchanger (14), and circulating a refrigerant, and a pressure sensor (16) arranged between the heat exchanger (14) and the set of compressors (6, 8, 10) sensing the refrigerant pressure; a cold carrier circuit (22) having a cold carrier pump (36), a cold consumer region (24), cold carrier conduits connecting the cold carrier pump (36), the heat exchanger (14) and the cold consumer region (24) and circulating a cold carrier, which is refrigerated in the heat exchanger (14), and a temperature sensor (26, 28) sensing the cold carrier temperature. The control unit for the set of compressors (6, 8, 10) is configured such that, in case of the temperature sensor (26, 28) sensing a too high cold carrier temperature, it prevents turning on additional compressor power stages, if the refrigerant pressure is below a first critical value (p<SUB>min</SUB> + ?pi) and decreases, and it switches off at least one running compressor power stage, if the refrigerant pressure falls below a second critical value (p<SUB>min</SUB> - ?p2).
DE602007011830T 2007-05-10 2007-05-10 COOLING SYSTEM AND METHOD FOR CONTROLLING COMPRESSOR PLANTS IN SUCH A COOLING SYSTEM Active DE602007011830D1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/EP2007/004174 WO2008138367A1 (en) 2007-05-10 2007-05-10 Refrigerating system and method for controlling compressor sets in such a refrigerating system

Publications (1)

Publication Number Publication Date
DE602007011830D1 true DE602007011830D1 (en) 2011-02-17

Family

ID=38961867

Family Applications (1)

Application Number Title Priority Date Filing Date
DE602007011830T Active DE602007011830D1 (en) 2007-05-10 2007-05-10 COOLING SYSTEM AND METHOD FOR CONTROLLING COMPRESSOR PLANTS IN SUCH A COOLING SYSTEM

Country Status (5)

Country Link
EP (1) EP2153138B1 (en)
AT (1) ATE494516T1 (en)
DE (1) DE602007011830D1 (en)
PL (1) PL2153138T3 (en)
WO (1) WO2008138367A1 (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ITBO20120152A1 (en) * 2012-03-21 2013-09-22 Irsap Spa REFRIGERATOR GROUP
US10107531B2 (en) 2012-08-31 2018-10-23 Danfoss A/S Method for controlling a chiller system
CN105982673B (en) * 2015-01-30 2020-09-29 西门子(深圳)磁共振有限公司 Cooling method of magnetic resonance imaging device and magnetic resonance imaging device
JP6399979B2 (en) 2015-07-31 2018-10-03 三菱重工サーマルシステムズ株式会社 Refrigerator system

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3675441A (en) * 1970-11-19 1972-07-11 Clark Equipment Co Two stage refrigeration plant having a plurality of first stage refrigeration systems
DE4010770C1 (en) * 1990-04-04 1991-11-21 Danfoss A/S, Nordborg, Dk
US5460008A (en) * 1993-12-22 1995-10-24 Novar Electronics Corporation Method of refrigeration case synchronization for compressor optimization
US6434960B1 (en) * 2001-07-02 2002-08-20 Carrier Corporation Variable speed drive chiller system
JP4727142B2 (en) * 2003-12-18 2011-07-20 三菱重工業株式会社 Turbo refrigerator, compressor thereof and control method thereof
US7415838B2 (en) * 2005-02-26 2008-08-26 Lg Electronics Inc Second-refrigerant pump driving type air conditioner
ATE441821T1 (en) * 2005-03-18 2009-09-15 Danfoss As METHOD FOR CONTROLLING A COOLING SYSTEM

Also Published As

Publication number Publication date
EP2153138A1 (en) 2010-02-17
ATE494516T1 (en) 2011-01-15
EP2153138B1 (en) 2011-01-05
WO2008138367A1 (en) 2008-11-20
PL2153138T3 (en) 2011-07-29

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