IT938839B - Impianto di refrigerazione con piu compressori centrifughi e regolazio ne per il bilanciamento del carico - Google Patents

Impianto di refrigerazione con piu compressori centrifughi e regolazio ne per il bilanciamento del carico

Info

Publication number
IT938839B
IT938839B IT29145/71A IT2914571A IT938839B IT 938839 B IT938839 B IT 938839B IT 29145/71 A IT29145/71 A IT 29145/71A IT 2914571 A IT2914571 A IT 2914571A IT 938839 B IT938839 B IT 938839B
Authority
IT
Italy
Prior art keywords
adjustment
load balancing
refrigeration system
centrifugal compressors
compressors
Prior art date
Application number
IT29145/71A
Other languages
English (en)
Italian (it)
Original Assignee
Westinghouse 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 Westinghouse Electric Corp filed Critical Westinghouse Electric Corp
Application granted granted Critical
Publication of IT938839B publication Critical patent/IT938839B/it

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
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D27/00—Control, e.g. regulation, of pumps, pumping installations or pumping systems specially adapted for elastic fluids
    • F04D27/02—Surge control
    • F04D27/0269—Surge control by changing flow path between different stages or between a plurality of compressors; load distribution between compressors
    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
    • G05D23/00—Control of temperature
    • G05D23/19—Control of temperature characterised by the use of electric means
    • 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
IT29145/71A 1970-09-28 1971-09-27 Impianto di refrigerazione con piu compressori centrifughi e regolazio ne per il bilanciamento del carico IT938839B (it)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US7591470A 1970-09-28 1970-09-28

Publications (1)

Publication Number Publication Date
IT938839B true IT938839B (it) 1973-02-10

Family

ID=22128726

Family Applications (1)

Application Number Title Priority Date Filing Date
IT29145/71A IT938839B (it) 1970-09-28 1971-09-27 Impianto di refrigerazione con piu compressori centrifughi e regolazio ne per il bilanciamento del carico

Country Status (8)

Country Link
US (1) US3648479A (de)
AU (1) AU465521B2 (de)
CA (1) CA923212A (de)
DE (1) DE2147394C2 (de)
ES (1) ES395343A1 (de)
FR (1) FR2108039B1 (de)
GB (1) GB1328628A (de)
IT (1) IT938839B (de)

Families Citing this family (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4205537A (en) * 1978-12-11 1980-06-03 General Electric Company Multiple hermetic-motor compressor in common shell
JPS58193055A (ja) * 1982-05-04 1983-11-10 株式会社東芝 ヒ−トポンプ形エアコン
GB2159980B (en) * 1982-09-10 1987-10-07 Frick Co Micro-processor control of compression ratio at full load in a helical screw rotary compressor responsive to compressor drive motor current
US4494006A (en) * 1982-09-15 1985-01-15 Compressor Controls Corporation Method and apparatus for controlling a multicompressor station
US4560319A (en) * 1983-08-01 1985-12-24 MAN Maschinenfabrik Unternehmensbereich GHH Sterkrade Method and apparatus for controlling at least two parallel-connected turbocompressors
US4494382A (en) * 1983-10-11 1985-01-22 Carrier Corporation Method and apparatus for controlling when to initiate an increase in compressor capacity
GB2170583B (en) * 1985-01-31 1989-06-07 Yanmar Diesel Engine Co An engine-driven heat pump type air conditioner with an outdoor unit
DE3937152A1 (de) * 1989-11-08 1991-05-16 Gutehoffnungshuette Man Verfahren zum optimierten betreiben zweier oder mehrerer kompressoren im parallel- oder reihenbetrieb
JPH055545A (ja) * 1991-04-26 1993-01-14 Toshiba Corp 空調システムの電流制御装置
US5195329A (en) * 1991-11-12 1993-03-23 Carrier Corporation Automatic chiller plant balancing
US5894739A (en) * 1997-07-10 1999-04-20 York International Corporation Compound refrigeration system for water chilling and thermal storage
US6602057B2 (en) 2001-10-01 2003-08-05 Dresser-Rand Company Management and optimization of load sharing between multiple compressor trains for controlling a main process gas variable
KR100437054B1 (ko) * 2002-05-27 2004-06-23 엘지전자 주식회사 히트펌프의 과부하 방지장치 및 그 방법
CA2492465C (en) 2002-08-06 2008-09-30 York International Corporation Stability control system and method for centrifugal compressors operating in parallel
US8567207B2 (en) * 2007-10-31 2013-10-29 Johnson Controls & Technology Company Compressor control system using a variable geometry diffuser
WO2015190525A1 (ja) * 2014-06-10 2015-12-17 東芝キヤリア株式会社 熱源機および熱源装置

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2336671A (en) * 1933-11-29 1943-12-14 Gen Motors Corp Refrigerating apparatus
US2178100A (en) * 1937-05-13 1939-10-31 Curtis Refrigerating Machine C Refrigerating condensing unit
DE972394C (de) * 1954-01-09 1959-07-16 Siemens Ag Einrichtung zur Drehmomentregelung von Doppelantrieben, insbesondere fuer Doppelantriebe von Walzgeruesten
DE1117710B (de) * 1954-05-24 1961-11-23 Siemens Ag Lastausgleichsregelung von Mehrmotorenantrieben mit Nebenschlussmotoren
US3350897A (en) * 1966-01-11 1967-11-07 Westinghouse Electric Corp Controls for centrifugal compressors having spin vanes in their inlets
US3362185A (en) * 1966-06-20 1968-01-09 Westinghouse Electric Corp Refrigeration systems with centrifugal compressors and air cooled condensers
US3609989A (en) * 1970-04-15 1971-10-05 Westinghouse Electric Corp Control for refrigeration system centrifugal compressor

Also Published As

Publication number Publication date
US3648479A (en) 1972-03-14
AU3289371A (en) 1973-03-08
DE2147394C2 (de) 1984-04-05
ES395343A1 (es) 1974-12-16
DE2147394A1 (de) 1972-03-30
FR2108039B1 (de) 1977-01-21
AU465521B2 (en) 1975-10-02
GB1328628A (en) 1973-08-30
CA923212A (en) 1973-03-20
FR2108039A1 (de) 1972-05-12

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