IT1255836B - Procedimento per la sorveglianza del limite di pompaggio di turbocompressori a piu' stadi e refrigerazione intermedia - Google Patents

Procedimento per la sorveglianza del limite di pompaggio di turbocompressori a piu' stadi e refrigerazione intermedia

Info

Publication number
IT1255836B
IT1255836B ITMI922221A IT1255836B IT 1255836 B IT1255836 B IT 1255836B IT MI922221 A ITMI922221 A IT MI922221A IT 1255836 B IT1255836 B IT 1255836B
Authority
IT
Italy
Prior art keywords
measured
pumping limit
pressure
refrigeration
values
Prior art date
Application number
Other languages
English (en)
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
Priority claimed from DE4202226A external-priority patent/DE4202226C2/de
Application filed filed Critical
Publication of ITMI922221A0 publication Critical patent/ITMI922221A0/it
Publication of ITMI922221A1 publication Critical patent/ITMI922221A1/it
Application granted granted Critical
Publication of IT1255836B publication Critical patent/IT1255836B/it

Links

Classifications

    • 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
    • F04D27/0207—Surge control by bleeding, bypassing or recycling fluids
    • 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
    • F04D27/001—Testing thereof; Determination or simulation of flow characteristics; Stall or surge detection, e.g. condition monitoring
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00—Details, component parts, or accessories
    • F04D29/58—Cooling; Heating; Diminishing heat transfer
    • F04D29/582—Cooling; Heating; Diminishing heat transfer specially adapted for elastic fluid pumps
    • F04D29/5826—Cooling at least part of the working fluid in a heat exchanger

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Sustainable Development (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Control Of Positive-Displacement Air Blowers (AREA)
  • Reciprocating Pumps (AREA)
  • Control Of Positive-Displacement Pumps (AREA)
  • Supercharger (AREA)

Abstract

Procedimento per la sorveglianza del limite di pompaggio di turbocompressori a più stadi e refrigerazione intermedia. Si misura la pressione (p1) sul lato di entrata, la pressione (p2) sul lato di uscita, la portata (F), la temperatura di aspirazione (Ts ) in entrata nel primo stadio del compressore e le temperature di refrigerazione di ritorno (Tri) negli stadi del compressore (i = 1 fino al numero delle refrigerazione intermedie) per ogni refrigerazione intermedia, e si immettono i valori misurati in un'apparecchiatura di controllo con memoria dei dati. Con i valori misurati della pressione (p1, p2) o il valore misurato della portata (F) nonché i valori misurati della temperatura si determina, in base alla funzione del limite di pompaggio Y = m . F + b memorizzata nell'apparecchiatura di controllo, la quale descrive almeno a tratti l'andamento della curva del limite di pompaggio nel diagramma caratteristico del compressore, un valore del limite di pompaggio associato al punto di lavoro del turbocompressore, in cui Y corrisponde alla differenza o al rapporto delle pressioni (p2, p1) ed in cui inoltre i coefficienti m, b sono funzioni lineari della temperatura di aspirazione (Ts) e delle temperature di refrigerazione di ritorno (Tri). Infine si confrontano i valori misurati della portata e della pressione (F, p1, p2) con il valore del limite di pompaggio precedentemente determinato ed al superamento di una distanza minima prestabilita viene emesso un segnale di avvertimento o comando.
IT92MI2221 1991-10-01 1992-09-25 Procedimento per la sorveglianza del limite di pompaggio di turbocompressori a piu' stadi e refrigerazione intermedia IT1255836B (it)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4132735 1991-10-01
DE4202226A DE4202226C2 (de) 1991-10-01 1992-01-28 Verfahren zur Überwachung eines mehrstufigen, zwischengekühlten Turboverdichters

Publications (3)

Publication Number Publication Date
ITMI922221A0 ITMI922221A0 (it) 1992-09-25
ITMI922221A1 ITMI922221A1 (it) 1994-03-25
IT1255836B true IT1255836B (it) 1995-11-17

Family

ID=25907908

Family Applications (1)

Application Number Title Priority Date Filing Date
IT92MI2221 IT1255836B (it) 1991-10-01 1992-09-25 Procedimento per la sorveglianza del limite di pompaggio di turbocompressori a piu' stadi e refrigerazione intermedia

Country Status (3)

Country Link
US (1) US5290142A (it)
JP (1) JP2740429B2 (it)
IT (1) IT1255836B (it)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5743715A (en) * 1995-10-20 1998-04-28 Compressor Controls Corporation Method and apparatus for load balancing among multiple compressors
DE19541192C2 (de) * 1995-11-04 1999-02-04 Ghh Borsig Turbomaschinen Gmbh Verfahren zum Schutz eines Turbokompressors vor Betrieb im instabilen Arbeitsbereich mittels einer Abblaseeinrichtung
DE10304063A1 (de) * 2003-01-31 2004-08-12 Man Turbomaschinen Ag Verfahren zum sicheren Betreiben von Turbokompressoren mit einer Pumpgrenzregelung und einem Pumpgrenzregelventil
GB2435311B (en) * 2006-02-16 2011-01-19 Gasfill Ltd Fluid compressor and motor vehicle refuelling apparatus
DE102008021102A1 (de) * 2008-04-28 2009-10-29 Siemens Aktiengesellschaft Wirkungsgradüberwachung eines Verdichters
DE102008058799B4 (de) * 2008-11-24 2012-04-26 Siemens Aktiengesellschaft Verfahren zum Betrieb eines mehrstufigen Verdichters
US20140060003A1 (en) * 2012-09-06 2014-03-06 General Electric Company Turbomachine having a flow monitoring system and method of monitoring flow in a turbomachine
ITFI20130063A1 (it) * 2013-03-26 2014-09-27 Nuovo Pignone Srl "methods and systems for antisurge control of turbo compressors with side stream"
JP6570457B2 (ja) * 2016-02-08 2019-09-04 三菱重工コンプレッサ株式会社 昇圧システム

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3424370A (en) * 1967-03-13 1969-01-28 Carrier Corp Gas compression systems
US3441200A (en) * 1967-03-13 1969-04-29 Carrier Corp Gas compression system having inlet gas control
JPS55123394A (en) * 1979-03-12 1980-09-22 Hitachi Ltd Capacity control of centrifugal compressor
DE2909675C3 (de) * 1979-03-12 1981-11-19 M.A.N. Maschinenfabrik Augsburg-Nürnberg AG, 4200 Oberhausen Verfahren zur kondensatfreien Zwischenkühlung verdichteter Gase
SU987193A1 (ru) * 1981-01-05 1983-01-07 Всесоюзный Научно-Исследовательский И Проектный Институт По Переработке Газа Способ регулировани центробежного компрессора
SU964251A1 (ru) * 1981-03-10 1982-10-07 Всесоюзный Научно-Исследовательский И Проектный Институт По Переработке Газа Система автоматического регулировани загрузки центробежного компрессора
SU1366713A1 (ru) * 1984-06-28 1988-01-15 Кузбасский Политехнический Институт Способ регулировани компрессора
DE3540087A1 (de) * 1985-11-12 1987-05-14 Gutehoffnungshuette Man Verfahren zum regeln von turbokompressoren
DE3544821A1 (de) * 1985-12-18 1987-06-19 Gutehoffnungshuette Man Verfahren zum regeln von turbokompressoren zur vermeidung des pumpens
DE3544822A1 (de) * 1985-12-18 1987-06-19 Gutehoffnungshuette Man Verfahren zur pumpgrenzregelung von turbokomporessoren
JPS63235697A (ja) * 1987-03-24 1988-09-30 Kobe Steel Ltd 遠心圧縮機の制御方法
DE3805119A1 (de) * 1988-02-18 1989-08-31 Gutehoffnungshuette Man Verfahren und einrichtung zum regeln von turbokompressoren

Also Published As

Publication number Publication date
JPH06101654A (ja) 1994-04-12
ITMI922221A0 (it) 1992-09-25
JP2740429B2 (ja) 1998-04-15
ITMI922221A1 (it) 1994-03-25
US5290142A (en) 1994-03-01

Similar Documents

Publication Publication Date Title
IT1255836B (it) Procedimento per la sorveglianza del limite di pompaggio di turbocompressori a piu' stadi e refrigerazione intermedia
US5316448A (en) Process and a device for increasing the efficiency of compression devices
EP1172559A3 (en) Displacement control mechanism for variable displacement type compressor
US2353201A (en) Aircraft cabin supercharger system
US2909908A (en) Miniature refrigeration device
ES2044748A2 (es) Valvula para un compresor de refrigeracion.
KR960023767A (ko) 다단계 압축기의 용량 제어
EP0233073A3 (en) Triple integrated heat pump circuit
JPH01149599U (it)
CN211623712U (zh) 喷油多级压缩机装置
US4072171A (en) Pressure control valve for a sphygmomanometer
US3183678A (en) Liquid to gas conversion system
IT1077551B (it) Procedimento per regolare la portata di compressori assiali a piu' stadi e compressore assiale per la realizzazione di tale procedimento
EP0020111B1 (en) Arrangement comprising a cryogenic refrigerator and an insulated enclosure, and an assembly including such an arrangement
KR840008839A (ko) 냉동 장치
IT8123370A0 (it) Dispositivo per regolare la portata di un compressore ad uno o a piu'stadi, in particolare per compressori a viti.
ATE287803T1 (de) Klimaanlage mit einer elektronischen überwachungsvorrichtung
US2737032A (en) Refrigeration system and method
ES2015204A6 (es) Valvula de bloqueo para sistemas de refrigeracion o de aire acondicionado.
US2959937A (en) Refrigeration system for air conditioning units
IT1251546B (it) Apparecchiatura per lo sbrinamento dello scambiatore di calore esternodi una pompa di calore.
SE8006146L (sv) Forfarande och anordning for reglering av kylaggregat
WO2019219928A3 (en) Cryocooler suitable for gas liquefaction applications, gas liquefaction system and method comprising the same
CN110410328A (zh) 具有自动调节滑阀位置的压缩机及空调系统
SE9001104L (sv) Tryckhaallningsventil

Legal Events

Date Code Title Description
0001 Granted
TA Fee payment date (situation as of event date), data collected since 19931001

Effective date: 19970929