EP0961090B1 - 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

Info

Publication number
EP0961090B1
EP0961090B1 EP99108910A EP99108910A EP0961090B1 EP 0961090 B1 EP0961090 B1 EP 0961090B1 EP 99108910 A EP99108910 A EP 99108910A EP 99108910 A EP99108910 A EP 99108910A EP 0961090 B1 EP0961090 B1 EP 0961090B1
Authority
EP
European Patent Office
Prior art keywords
oil
compressors
operating
refrigerating installation
compressor
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.)
Expired - Lifetime
Application number
EP99108910A
Other languages
German (de)
English (en)
Other versions
EP0961090A3 (fr
EP0961090A2 (fr
Inventor
Jürgen Dipl.-Ing. Rüter
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.)
Carrier Kaeltetechnik Deutschland GmbH
Original Assignee
Linde Kaeltetechnik 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 Kaeltetechnik GmbH filed Critical Linde Kaeltetechnik GmbH
Publication of EP0961090A2 publication Critical patent/EP0961090A2/fr
Publication of EP0961090A3 publication Critical patent/EP0961090A3/fr
Application granted granted Critical
Publication of EP0961090B1 publication Critical patent/EP0961090B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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
    • F25B31/00—Compressor arrangements
    • F25B31/002—Lubrication
    • 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
    • F04B39/00—Component parts, details, or accessories, of pumps or pumping systems specially adapted for elastic fluids, not otherwise provided for in, or of interest apart from, groups F04B25/00 - F04B37/00
    • F04B39/02—Lubrication
    • F04B39/0207—Lubrication with lubrication control 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
    • 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
    • F25B2500/00—Problems to be solved
    • F25B2500/27—Problems to be solved characterised by the stop of the refrigeration cycle

Definitions

  • the invention relates to a method for operating a composite (cold) system at least two compressors connected in parallel.
  • composite (refrigeration) system is one as described below Compound 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 method for Operate a composite (refrigeration) plant to indicate the disadvantages mentioned are largely avoided.
  • the inventive method for operating a composite (cold) system with At least two compressors connected in parallel are characterized in that the compressors are only switched off when all have at least one Oil compensation line interconnected compressor are in operation, the The compressor is switched off before the minimum allowable oil quantity is within of a compressor is reached.
  • the compressors can also be switched off for the purpose of oil compensation then, if not all of them are connected to one another via at least one oil compensation line connected compressor are in operation.
  • the compressors are switched off In this case, this is not absolutely necessary, as it becomes a problem during operation Oil balance between the compressors in operation and those not in operation comes.
  • Oil compensation takes place between the individual condensers or between the condensers, between them the shut-off device provided in the oil compensation line is open during the All compressors come to a standstill. During this time it occurs in the oil reservoirs of the parallel connected compressor to a pressure equalization, which leads to that in set the same oil levels in the oil reservoirs.
  • the operating times of the compressors until they are switched off are to be selected that the minimum allowable oil level inside the compressor is due to the oil displacement that does not necessarily occur during compressor operation is undercut.
  • the standstill phases of the compressors must be timed in this way ensure that there is sufficient oil balance between the compressors can and a significant impairment of the cold supply by the Compressor of the composite (cold) system according to the invention is avoided.
  • the inventive method for operating a composite (cold) system requires less design effort compared to the prior art. This leads to savings in investment and operating costs. Since largely on the The use of mechanically moving components can be dispensed with Operational reliability of the method according to the invention for operating a Composite (cold) system increased. The invention also enables the combination of same and different compressors.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Control Of Positive-Displacement Pumps (AREA)
  • Compressors, Vaccum Pumps And Other Relevant Systems (AREA)
  • Compression-Type Refrigeration Machines With Reversible Cycles (AREA)
  • Superconductors And Manufacturing Methods Therefor (AREA)
  • Manufacture Of Alloys Or Alloy Compounds (AREA)

Claims (1)

  1. Procédé pour faire fonctionner une installation combinée ainsi qu'une installation frigorifique combinée comprenant au moins deux compresseurs montés en parallèle, caractérisé en ce qu'un arrêt des compresseurs n'a lieu que lorsque tous les compresseurs connectés les uns aux autres par le biais d'au moins une conduite de compensation d'huile fonctionnent, l'arrêt des compresseurs s'effectuant avant que la quantité d'huile minimale admissible à l'intérieur d'un compresseur soit atteinte.
EP99108910A 1998-05-26 1999-05-05 Installation frigorifique combinée et procédé pour faire fonctionner une installation frigorifique combinée Expired - Lifetime EP0961090B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19823525A DE19823525A1 (de) 1998-05-26 1998-05-26 Verbund(kälte)anlage und Verfahren zum Betreiben einer Verbund(kälte)anlage
DE19823525 1998-05-26

Publications (3)

Publication Number Publication Date
EP0961090A2 EP0961090A2 (fr) 1999-12-01
EP0961090A3 EP0961090A3 (fr) 2000-03-15
EP0961090B1 true EP0961090B1 (fr) 2004-09-29

Family

ID=7868980

Family Applications (1)

Application Number Title Priority Date Filing Date
EP99108910A Expired - Lifetime EP0961090B1 (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) EP0961090B1 (fr)
AT (1) ATE278164T1 (fr)
DE (2) DE19823525A1 (fr)
ES (1) ES2229578T3 (fr)
PT (1) PT961090E (fr)

Families Citing this family (3)

* 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
DE10357556A1 (de) * 2003-12-10 2005-07-14 Linde Kältetechnik GmbH & Co. KG Verbund(kälte)anlage und Verfahren zum Betreiben einer Verbund(kälte)anlage

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3633377A (en) * 1969-04-11 1972-01-11 Lester K Quick Refrigeration system oil separator
US3621670A (en) * 1970-01-12 1971-11-23 Vilter Manufacturing Corp Lubricating oil equalizing system
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
JP2865707B2 (ja) * 1989-06-14 1999-03-08 株式会社日立製作所 冷凍装置
US5209076A (en) * 1992-06-05 1993-05-11 Izon, Inc. Control system for preventing compressor damage in a refrigeration system
US5369958A (en) * 1992-10-15 1994-12-06 Mitsubishi Denki Kabushiki Kaisha Air conditioner
DK4093A (da) * 1993-01-14 1994-09-12 Birton As Anlæg til tilbageføring af smøreolie i kølekompressorer
US5327997A (en) * 1993-01-22 1994-07-12 Temprite, Inc. Lubrication management system
US5542499A (en) * 1995-01-11 1996-08-06 Ac&R Components, Inc. Electromechanical oil level regulator
US5839886A (en) * 1996-05-10 1998-11-24 Shaw; David N. Series connected primary and booster compressors

Also Published As

Publication number Publication date
EP0961090A3 (fr) 2000-03-15
ES2229578T3 (es) 2005-04-16
DE19823525A1 (de) 1999-12-02
EP0961090A2 (fr) 1999-12-01
DE59910625D1 (de) 2004-11-04
PT961090E (pt) 2005-02-28
ATE278164T1 (de) 2004-10-15

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