EP0961091A2 - Installation frigorifique combinée et procédé pour faire fonctionner une installation frigorifique combinée - Google Patents

Installation frigorifique combinée et procédé pour faire fonctionner une installation frigorifique combinée Download PDF

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Publication number
EP0961091A2
EP0961091A2 EP99108909A EP99108909A EP0961091A2 EP 0961091 A2 EP0961091 A2 EP 0961091A2 EP 99108909 A EP99108909 A EP 99108909A EP 99108909 A EP99108909 A EP 99108909A EP 0961091 A2 EP0961091 A2 EP 0961091A2
Authority
EP
European Patent Office
Prior art keywords
compressor
pressure
oil
operating
composite
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
EP99108909A
Other languages
German (de)
English (en)
Other versions
EP0961091A3 (fr
EP0961091B1 (fr
Inventor
Rolf Dipl.-Ing. Seidel
Karl Dipl.-Ing. Wüller
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.)
Linde GmbH
Carrier Kaeltetechnik Deutschland GmbH
Original Assignee
Linde GmbH
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 Linde GmbH filed Critical Linde GmbH
Publication of EP0961091A2 publication Critical patent/EP0961091A2/fr
Publication of EP0961091A3 publication Critical patent/EP0961091A3/fr
Application granted granted Critical
Publication of EP0961091B1 publication Critical patent/EP0961091B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • F04D25/00—Pumping installations or systems
    • F04D25/16—Combinations of two or more pumps ; Producing two or more separate gas flows
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B41/00—Pumping installations or systems specially adapted for elastic fluids
    • F04B41/06—Combinations of two or more pumps
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C23/00—Combinations of two or more pumps, each being of rotary-piston or oscillating-piston type, specially adapted for elastic fluids; Pumping installations specially adapted for elastic fluids; Multi-stage pumps specially adapted for elastic 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
    • F04D27/02—Surge control
    • F04D27/0269—Surge control by changing flow path between different stages or between a plurality of compressors; load distribution between 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
    • F25B1/00—Compression machines, plants or systems with non-reversible cycle
    • F25B1/10—Compression machines, plants or systems with non-reversible cycle with multi-stage compression
    • 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
    • F25B31/00—Compressor arrangements
    • F25B31/002—Lubrication
    • F25B31/004—Lubrication oil recirculating 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
    • 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

Definitions

  • the invention relates to a composite (cold) system with at least two different compressors working at different suction pressures.
  • the invention further relates to a method for operating such a system Composite (cold) system.
  • composite (cold) system is one as described below Composite refrigeration system as well as composite systems that compress any media serve for other purposes.
  • the object of the present invention is to provide a generic (cold) system and a generic method for operating such Compound (cold) system to specify, in which the disadvantages mentioned be avoided.
  • the composite (cold) system according to the invention is characterized in that an oil compensation line between the compressor oil sumps of the compressors at least one shut-off device is arranged.
  • the inventive method for operating a composite (cold) system with draws at least two compressors operating at different suction pressures is characterized by the fact that of the compressors between which an oil balance takes place the one (s) with the lower operating pressure is to be switched off (s) continue to operate while the one (s) with the higher operating pressure or is switched off, then via one between the compressor oil sumps the compressor arranged oil compensation line an oil compensation takes place and after oil equalization, an increase in pressure in the compressor that is on involved in oil balancing and at the lowest pressure becomes.
  • Figures 1 to 4 each show a composite (cold) system with two, with different Suction pressures working compressors V1 and V2.
  • Figures 1 and 3 - drawn in broken lines - are arranged parallel to the compressors V1 and V2 Compressor V1 'and V2' shown. In principle, one or more can be used for each pressure level compressors connected in parallel are used.
  • boost In the connection of the compressors V1 and V2 shown in FIGS. 1 and 2 it is a so-called “booster” arrangement, while in the Figures 3 and 4 shown interconnection of a so-called “satellite” arrangement speaks.
  • the term “booster” arrangement stems from the fact that the pressure side of the Compressor V2 is connected to the suction side of compressor V1; that too compressing and transportable medium through the compressor V2 in the Compressor V1 is "pushed in”.
  • Refrigeration systems of this type generally consist of at least two refrigerant circuits, wherein at least one refrigerant circuit of normal cooling and at least a refrigerant circuit is used for freezing. That relaxed with freezing Refrigerant is via line 1 of the suction side of the first compressor stage or the Compressor V2 supplied. In this, the refrigerant is pressurized Line 3 brought refrigerant relaxed for the purpose of normal cooling condensed. The refrigerant compressed in compressor V2 is fed via line 2 together with the refrigerant introduced via line 3 of the suction side of the 2. Compressor stage or the compressor V1 supplied. In the compressor V1 that is Refrigerant compressed to the final pressure and then again via line 4 fed to the condenser and evaporators.
  • the compressor V1 and V2 is between the compressor oil sumps an oil compensation line 5, in which at least one shut-off element 6 is provided, arranged.
  • the oil compensation line 5 is during normal operation by the Shut-off device 6 closed.
  • Compressor V2 is switched off from time to time and the shut-off device 6, which is preferably a valve open. Now there is a drain of the excess oil from the Oil reservoir of the compressor V1, in which the higher pressure prevails, into the oil reservoir of the compressor V2, which has a lower pressure.
  • FIG. 2 Another possibility for increasing the pressure in the compressor V2 is shown in FIG. 2 shown.
  • a check valve 8 is arranged in line 1.
  • the composite (cold) systems shown in Figures 3 and 4 and procedures to operate a composite (cold) system differ from that in the Figures 1 and 2 shown composite (cold) systems or procedures only characterized in that the refrigerant compressed in the compressor V2, the compressor V2 is supplied via line ii, is not supplied to the compressor V1, but via Line 12 is mixed with the refrigerant compressed in the compressor V1 in line 14 becomes.
  • the refrigerant to be compressed in the compressor V1 is fed to this via line 13 fed.
  • the oil compensation line 15 between the compressor oil sumps Compressor V1 and V2, which can be closed by means of a shut-off element 16, are met the same purpose as the oil compensation line 5 shown in FIGS. 1 and 2.
  • the same applies to the connecting line 19 shown in FIG Shut-off device 20 is provided - it takes over the function of that in FIG. 2 connecting line 9 shown.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Compressors, Vaccum Pumps And Other Relevant Systems (AREA)
  • Control Of Positive-Displacement Pumps (AREA)
  • Superconductors And Manufacturing Methods Therefor (AREA)
  • Manufacture Of Alloys Or Alloy Compounds (AREA)
  • Other Air-Conditioning Systems (AREA)
  • Devices That Are Associated With Refrigeration Equipment (AREA)
EP99108909A 1998-05-26 1999-05-05 Installation frigorifique combinée et procédé pour faire fonctionner une installation frigorifique combinée Expired - Lifetime EP0961091B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19823524A DE19823524A1 (de) 1998-05-26 1998-05-26 Verbund(kälte)anlage und Verfahren zum Betreiben einer Verbund(kälte)anlage
DE19823524 1998-05-26

Publications (3)

Publication Number Publication Date
EP0961091A2 true EP0961091A2 (fr) 1999-12-01
EP0961091A3 EP0961091A3 (fr) 2000-03-15
EP0961091B1 EP0961091B1 (fr) 2003-12-03

Family

ID=7868979

Family Applications (1)

Application Number Title Priority Date Filing Date
EP99108909A Expired - Lifetime EP0961091B1 (fr) 1998-05-26 1999-05-05 Installation frigorifique combinée et procédé pour faire fonctionner une installation frigorifique combinée

Country Status (5)

Country Link
EP (1) EP0961091B1 (fr)
AT (1) ATE255716T1 (fr)
DE (2) DE19823524A1 (fr)
ES (1) ES2212415T4 (fr)
PT (1) PT961091E (fr)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2006128457A1 (fr) * 2005-05-30 2006-12-07 Johnson Controls Denmark Aps Separation de l'huile dans un circuit de refroidissement
EP2034256A1 (fr) * 2007-09-07 2009-03-11 Electricité de France Procede et dispositif d'equilibrage d'huile entre compresseurs
EP2221559A1 (fr) * 2009-02-19 2010-08-25 Airwell Industrie France SAS Installation thermodynamique à lubrification améliorée
WO2012095186A1 (fr) * 2011-01-14 2012-07-19 Carrier Corporation Système de réfrigération et procédé de fonctionnement d'un système de réfrigération
DE102013014543A1 (de) * 2013-09-03 2015-03-05 Stiebel Eltron Gmbh & Co. Kg Wärmepumpenvorrichtung

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10015603A1 (de) * 2000-03-29 2001-10-04 Linde Ag Kälteanlage
DE10252083A1 (de) * 2002-11-08 2004-05-27 Linde Ag Kälteanlage

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4383802A (en) * 1981-07-06 1983-05-17 Dunham-Bush, Inc. Oil equalization system for parallel connected compressors
US4529061A (en) * 1984-01-23 1985-07-16 Deere & Company Fluid level control system
EP0403239A2 (fr) * 1989-06-14 1990-12-19 Hitachi, Ltd. Dispositif compresseur à capacité réglable
EP0607101A1 (fr) * 1993-01-14 1994-07-20 Birton A/S Système de retour d'huile de lubrification pour compresseur frigorifique
EP0715133A1 (fr) * 1994-06-29 1996-06-05 Daikin Industries, Ltd. Refrigerateur
WO1997016647A1 (fr) * 1995-11-02 1997-05-09 Aaf-Mcquay Incorporated Agencement de compresseur ameliore et son procede de fonctionnement
WO1997032168A1 (fr) * 1996-02-27 1997-09-04 Shaw David N Pompe a chaleur avec entree d'air surcomprime

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2844664A1 (de) * 1978-10-13 1980-04-24 Volkswagenwerk Ag Verbrennungsmotorisch betriebene waermepumpe
IT1144762B (it) * 1981-09-07 1986-10-29 Aspera Spa Motocompressore ermetico per impianti frigoriferi e simili

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4383802A (en) * 1981-07-06 1983-05-17 Dunham-Bush, Inc. Oil equalization system for parallel connected compressors
US4529061A (en) * 1984-01-23 1985-07-16 Deere & Company Fluid level control system
EP0403239A2 (fr) * 1989-06-14 1990-12-19 Hitachi, Ltd. Dispositif compresseur à capacité réglable
EP0607101A1 (fr) * 1993-01-14 1994-07-20 Birton A/S Système de retour d'huile de lubrification pour compresseur frigorifique
EP0715133A1 (fr) * 1994-06-29 1996-06-05 Daikin Industries, Ltd. Refrigerateur
WO1997016647A1 (fr) * 1995-11-02 1997-05-09 Aaf-Mcquay Incorporated Agencement de compresseur ameliore et son procede de fonctionnement
WO1997032168A1 (fr) * 1996-02-27 1997-09-04 Shaw David N Pompe a chaleur avec entree d'air surcomprime

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2006128457A1 (fr) * 2005-05-30 2006-12-07 Johnson Controls Denmark Aps Separation de l'huile dans un circuit de refroidissement
EP2034256A1 (fr) * 2007-09-07 2009-03-11 Electricité de France Procede et dispositif d'equilibrage d'huile entre compresseurs
FR2920839A1 (fr) * 2007-09-07 2009-03-13 Electricite De France Procede et dispositif d'equilibrage d'huile entre compresseurs
EP2221559A1 (fr) * 2009-02-19 2010-08-25 Airwell Industrie France SAS Installation thermodynamique à lubrification améliorée
WO2012095186A1 (fr) * 2011-01-14 2012-07-19 Carrier Corporation Système de réfrigération et procédé de fonctionnement d'un système de réfrigération
DE102013014543A1 (de) * 2013-09-03 2015-03-05 Stiebel Eltron Gmbh & Co. Kg Wärmepumpenvorrichtung

Also Published As

Publication number Publication date
EP0961091A3 (fr) 2000-03-15
EP0961091B1 (fr) 2003-12-03
ATE255716T1 (de) 2003-12-15
DE59907913D1 (de) 2004-01-15
PT961091E (pt) 2004-04-30
DE19823524A1 (de) 1999-12-02
ES2212415T3 (es) 2004-07-16
ES2212415T4 (es) 2004-09-16

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