EP1050723A2 - Système frigorifique et procédé de fonctionnement d'un système frigorifique - Google Patents

Système frigorifique et procédé de fonctionnement d'un système frigorifique Download PDF

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Publication number
EP1050723A2
EP1050723A2 EP00109559A EP00109559A EP1050723A2 EP 1050723 A2 EP1050723 A2 EP 1050723A2 EP 00109559 A EP00109559 A EP 00109559A EP 00109559 A EP00109559 A EP 00109559A EP 1050723 A2 EP1050723 A2 EP 1050723A2
Authority
EP
European Patent Office
Prior art keywords
circuit
suction
refrigeration system
normal cooling
cooling circuit
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
EP00109559A
Other languages
German (de)
English (en)
Other versions
EP1050723B1 (fr
EP1050723A3 (fr
Inventor
Klaus Koch
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 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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=7907090&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP1050723(A2) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Linde GmbH filed Critical Linde GmbH
Publication of EP1050723A2 publication Critical patent/EP1050723A2/fr
Publication of EP1050723A3 publication Critical patent/EP1050723A3/fr
Application granted granted Critical
Publication of EP1050723B1 publication Critical patent/EP1050723B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • F25B5/00—Compression machines, plants or systems, with several evaporator circuits, e.g. for varying refrigerating capacity
    • F25B5/02—Compression machines, plants or systems, with several evaporator circuits, e.g. for varying refrigerating capacity 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
    • 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
    • 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
    • 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
    • F25B2400/16—Receivers
    • 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
    • F25B2400/22—Refrigeration systems for supermarkets
    • 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
    • F25B41/00—Fluid-circulation arrangements
    • F25B41/20—Disposition of valves, e.g. of on-off valves or flow control valves

Definitions

  • the invention relates to a refrigeration system with at least one normal cooling circuit and at least one freezer circuit, the circuits interconnected and only one condenser is provided and the freezer circuit at least one has two-stage compressor unit.
  • the invention further relates to a method for operating a refrigeration system.
  • Refrigeration systems of the generic type are often used as composite refrigeration systems designated.
  • Such (composite) refrigeration systems are used, for example, in supermarkets operated. They generally supply a large number of cold consumers, such as such as cold rooms, refrigerators and freezers. For this purpose a one or circulates in them multi-component refrigerant or refrigerant mixture.
  • Such (Compound) refrigeration system has - as shown in the figure - a condenser V, in which the pressurized refrigerant by indirect heat exchange, preferably against outside air.
  • the liquid refrigerant from the condenser V becomes optional via line 1 to be provided collector S1.
  • collector S1 There must always be so much in a refrigeration system Refrigerants should be present, so that the evaporators of all, even with maximum cooling requirements Cold consumers can be filled.
  • the refrigerant comes from the collector S1 via the Liquid lines 2 and 3 and 4 to the cooling consumers of the nominal cooling and Freezing cycle.
  • Each refrigeration consumer V1 to V4 is preceded by an expansion valve a to d, in which that in the refrigeration consumer or the evaporator (s) of the refrigeration consumer flowing refrigerant is relaxed.
  • the refrigerant so relaxed is in the evaporators of the refrigerant consumers V1 to V4 evaporates and cools them appropriate refrigeration cabinets and rooms.
  • That evaporated in the cold consumers V1 and V2 of the normal cooling circuit Refrigerant is the suction collecting tank S2 of the normal cooling circuit via a suction line 5 fed.
  • This suction collecting container S2 is the compressor unit of the Normal cooling circuit upstream. In principle, however, can turn to such Suction collector can be dispensed with.
  • the compressor unit of the Normal cooling circuit formed only one stage and has several, preferably three compressors connected in parallel; are in the figure for the sake of clarity only two compressors C1 and C2 connected in parallel are shown. These suck over the lines 6 and 7 refrigerant from the suction tank S2 and promote that compressed refrigerant via the pressure line 8 to a desuperheater E. After passing through of the desuperheater E, the refrigerant is again the line already described above Capacitor V supplied.
  • Cooling or subcooling of the refrigerant in the liquid line 4 the for example in indirect heat exchange with that promoted in line 10 Refrigerant can be done.
  • the consumers V3 and V4 of the freezer circuit via the liquid line 4 supplied refrigerant is the low pressure suction tank via the suction line 10 S3 fed to the compressor unit of the freezer circuit.
  • the compressor unit of the freezer circuit is preferably at least two stages trained, again for the sake of clarity through each compressor stage Two compressors C3 and C5 and C4 and C6 connected in parallel is shown.
  • the Compressors C3 and C5 of the first compressor stage suck via lines 11 and 12 gaseous refrigerant from the low-pressure suction tank S3 and pump the refrigerant compressed to an intermediate pressure via line 13 in the Intermediate pressure suction container S4.
  • the compressors C4 and C6 of the second compressor stage via lines 14 and 15 refrigerant and then also convey the compressed refrigerant via the pressure line 16 in front of the previously mentioned desuperheater E in line 9.
  • the deep-freeze circuit can also be designed in three or more stages; in In this case, the individual compressor stages would each have separate suction collecting containers be upstream.
  • the refrigeration system is operated in a so-called Energy-saving operation driven.
  • energy-saving operation here to understand those operating conditions in which the on the refrigeration units Night blinds shut down or above, the lights are off, the Cold room doors can no longer be opened and therefore no flow of goods - i.e. the Removal or delivery of goods from or into the refrigeration units or cold rooms - more takes place.
  • the object of the present invention is to provide a refrigeration system and a method for Operate a refrigeration system of the generic type to specify at or which the disadvantages mentioned are avoided.
  • a refrigeration system which is thereby distinguishes that the suction side of the normal cooling circuit with the or one of the Intermediate pressure sides of the freezer circuit is in operative connection.
  • An active connection between the suction side of the normal cooling circuit and the or one of the intermediate pressure sides of the freezer circuit is advantageous according to one Design of the refrigeration system according to the invention via at least one connecting line realized.
  • suction collecting tanks are upstream, stand - according to another advantageous embodiment of the invention - at least the suction container of the Normal cooling circuit and the or one of the intermediate pressure suction container of the Frozen circuit in operative connection, the active connection in turn preferably is realized via at least one connecting line.
  • the method according to the invention for operating a refrigeration system is thereby characterized in that the suction side of the normal cooling circuit with the or one of the Intermediate pressure sides of the freezer circuit is in operative connection.
  • the method according to the invention is proposed that during the Night and / or closing times the compressors of the normal cooling circuit turned off.
  • Another embodiment of the refrigeration system according to the invention is characterized in that one the suction collecting tank S2 of the normal cooling circuit and or connecting one of the intermediate pressure suction collecting containers S4 of the deep-freeze circuit Oil compensation line 21 is provided.

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Mechanical Engineering (AREA)
  • Thermal Sciences (AREA)
  • General Engineering & Computer Science (AREA)
  • Devices That Are Associated With Refrigeration Equipment (AREA)
  • Compression-Type Refrigeration Machines With Reversible Cycles (AREA)
EP00109559A 1999-05-05 2000-05-04 Système frigorifique et procédé de fonctionnement d'un système frigorifique Expired - Lifetime EP1050723B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19920734A DE19920734A1 (de) 1999-05-05 1999-05-05 Kälteanlage und Verfahren zum Betreiben einer Kälteanlage
DE19920734 1999-05-05

Publications (3)

Publication Number Publication Date
EP1050723A2 true EP1050723A2 (fr) 2000-11-08
EP1050723A3 EP1050723A3 (fr) 2002-08-14
EP1050723B1 EP1050723B1 (fr) 2007-01-03

Family

ID=7907090

Family Applications (1)

Application Number Title Priority Date Filing Date
EP00109559A Expired - Lifetime EP1050723B1 (fr) 1999-05-05 2000-05-04 Système frigorifique et procédé de fonctionnement d'un système frigorifique

Country Status (4)

Country Link
EP (1) EP1050723B1 (fr)
AT (1) ATE350629T1 (fr)
DE (2) DE19920734A1 (fr)
ES (1) ES2280159T3 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1340949A1 (fr) * 2000-12-08 2003-09-03 Daikin Industries, Ltd. Refrigerateur
EP2021703A2 (fr) * 2006-06-01 2009-02-11 Carrier Corporation Unité de compresseur à étages multiples pour système de réfrigération
US20110314846A1 (en) * 2004-08-09 2011-12-29 Linde Kaltetechnik Gmbh Refrigeration Circuit and Method for Operating a Refrigeration Circuit

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10131473A1 (de) * 2001-06-29 2003-01-09 Linde Ag Kälteanlage und Verfahren zum Betreiben einer Kälteanlage
DE102014100917A1 (de) * 2014-01-27 2015-07-30 Bitzer Kühlmaschinenbau Gmbh Kälteanlage

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3151469A (en) * 1961-10-02 1964-10-06 Lester K Quick Heat reclaiming system
US3638444A (en) * 1970-02-12 1972-02-01 Gulf & Western Metals Forming Hot gas refrigeration defrost structure and method
EP0076716A1 (fr) * 1981-09-25 1983-04-13 Fsb Installation frigorifique à multimotocompresseurs
US4947655A (en) * 1984-01-11 1990-08-14 Copeland Corporation Refrigeration system
US5522233A (en) * 1994-12-21 1996-06-04 Carrier Corporation Makeup oil system for first stage oil separation in booster system

Family Cites Families (4)

* 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
US4055963A (en) * 1975-06-25 1977-11-01 Daikin Kogyo Co., Ltd. Heating system
CA1062927A (fr) * 1978-01-09 1979-09-25 Emhart Industries Systeme de refrigeration utilisant un refrigerant gazeux sature pour le degivrage
JPS58178158A (ja) * 1982-04-14 1983-10-19 株式会社日立製作所 ヒ−トポンプ装置

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3151469A (en) * 1961-10-02 1964-10-06 Lester K Quick Heat reclaiming system
US3638444A (en) * 1970-02-12 1972-02-01 Gulf & Western Metals Forming Hot gas refrigeration defrost structure and method
EP0076716A1 (fr) * 1981-09-25 1983-04-13 Fsb Installation frigorifique à multimotocompresseurs
US4947655A (en) * 1984-01-11 1990-08-14 Copeland Corporation Refrigeration system
US5522233A (en) * 1994-12-21 1996-06-04 Carrier Corporation Makeup oil system for first stage oil separation in booster system

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1340949A1 (fr) * 2000-12-08 2003-09-03 Daikin Industries, Ltd. Refrigerateur
EP1340949A4 (fr) * 2000-12-08 2009-08-12 Daikin Ind Ltd Refrigerateur
US20110314846A1 (en) * 2004-08-09 2011-12-29 Linde Kaltetechnik Gmbh Refrigeration Circuit and Method for Operating a Refrigeration Circuit
US8844303B2 (en) * 2004-08-09 2014-09-30 Carrier Corporation Refrigeration circuit and method for operating a refrigeration circuit
EP2021703A2 (fr) * 2006-06-01 2009-02-11 Carrier Corporation Unité de compresseur à étages multiples pour système de réfrigération
EP2021703A4 (fr) * 2006-06-01 2012-02-15 Carrier Corp Unité de compresseur à étages multiples pour système de réfrigération

Also Published As

Publication number Publication date
EP1050723B1 (fr) 2007-01-03
DE19920734A1 (de) 2000-11-09
EP1050723A3 (fr) 2002-08-14
ES2280159T3 (es) 2007-09-16
ATE350629T1 (de) 2007-01-15
DE50013917D1 (de) 2007-02-15

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