EP0260367B1 - Installation frigorifique - Google Patents

Installation frigorifique Download PDF

Info

Publication number
EP0260367B1
EP0260367B1 EP86730138A EP86730138A EP0260367B1 EP 0260367 B1 EP0260367 B1 EP 0260367B1 EP 86730138 A EP86730138 A EP 86730138A EP 86730138 A EP86730138 A EP 86730138A EP 0260367 B1 EP0260367 B1 EP 0260367B1
Authority
EP
European Patent Office
Prior art keywords
refrigerant
condenser
liquid separator
low
collecting area
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
EP86730138A
Other languages
German (de)
English (en)
Other versions
EP0260367A1 (fr
Inventor
Manfred Smentek
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.)
Annemarie Smentek Te Berlijn Bondsrepubliek Duits
Original Assignee
KNOCHE GESELLSCHAFT fur KALTE- und KLIMATECHNIK MBH
Smentek Annemarie
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 KNOCHE GESELLSCHAFT fur KALTE- und KLIMATECHNIK MBH, Smentek Annemarie filed Critical KNOCHE GESELLSCHAFT fur KALTE- und KLIMATECHNIK MBH
Priority to DE8686730138T priority Critical patent/DE3669916D1/de
Priority to AT86730138T priority patent/ATE51440T1/de
Priority to EP86730138A priority patent/EP0260367B1/fr
Publication of EP0260367A1 publication Critical patent/EP0260367A1/fr
Application granted granted Critical
Publication of EP0260367B1 publication Critical patent/EP0260367B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

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
    • F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
    • F25D16/00—Devices using a combination of a cooling mode associated with refrigerating machinery with a cooling mode not associated with refrigerating machinery
    • 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
    • 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
    • F25B2400/23—Separators

Definitions

  • the invention relates to a refrigeration system according to the first part of claim 1.
  • the known compression systems work in such a way that a vaporous but easily liquefiable refrigerant is first compressed in a compressor and then liquefied in a condenser with a coolant whose temperature is lower than the condensation temperature of the refrigerant at the present pressure.
  • the compression circuit with the compressor, the condenser and the pressure reduction element is led out of the gas collecting space of the separator and flows back into it, while the low pressure circuit containing the flooded evaporator removes the refrigerant from the liquid collecting area of the separator and this in a partly gaseous, partly liquid state into the Gas collection area returns.
  • the compressor consumes a relatively large amount of energy and, in addition, the compressor and the corresponding energy supply lines have to be designed for a high connected load, which means that the operating and connection costs are considerable.
  • a similar refrigeration system is described in FR-A 2 341 109.
  • This also contains a compression circuit with a compressor, a condenser and a pressure reduction element, a low-pressure circuit with a refrigerant pump, an evaporator and a condenser, and a liquid separator connecting the compression and the low-pressure circuit.
  • the condenser in the low-pressure circuit serves as a cold store, which is loaded by the compression circuit in times of low cooling demand and is discharged in times of high cooling demand. There is no energy saving here either.
  • the invention is characterized in that the (ondensation of the refrigerant in the condenser in the low-pressure circuit can be carried out directly or indirectly by outside air.
  • a partial or even complete condensation of the refrigerant takes place in the low pressure circuit behind the evaporator. This reduces the proportion of the refrigerant to be liquefied in the compression circuit, as a result of which the amount of work to be done by the compressor is reduced accordingly.
  • the use of the practically unlimited and freely available outside air as a coolant for the condensation of the refrigerant in the condenser of the low-pressure circuit thus leads to considerable savings.
  • a compression circuit 1 and a low-pressure circuit 2 for a conventional refrigerant are connected to one another by a liquid separator 3.
  • the liquid phase of the refrigerant collects in the lower area, while the upper area is filled with the gas phase of the refrigerant.
  • the boundary between the liquid phase and the gas phase is selected so that the two connections of the compression circuit 1 open into the gas collection area, while the line through which the refrigerant is fed to the low-pressure circuit 2 always leads to the liquid collection area, and the line via which the refrigerant is returned from the low-pressure circuit 2 into the liquid separator 3, with the gas collection area of which are connected.
  • the compression circuit 1 is designed in a known manner and has a compressor 4, a condenser 5 and a pressure reduction element in the form of an HP float valve 6 arranged one behind the other in the direction of flow of the refrigerant.
  • the compressor 4 is supplied with gaseous refrigerant from the liquid separator 3, which is compressed by the latter.
  • the condenser 5 the compressed refrigerant is condensed by a supplied coolant through heat exchange and then the pressure of the liquid refrigerant in the float valve 6 is reduced to the pressure prevailing in the liquid separator 3.
  • the liquid refrigerant flows out of the float valve 6 in the liquid separator 3 and collects in the lower area.
  • a refrigerant pump 7, an evaporator 8 and a condenser 9 are arranged one behind the other in the flow direction of the refrigerant.
  • the evaporator 8 operates in flooded mode, i.e. the liquid refrigerant supplied to it by the refrigerant pump 7 is evaporated to the extent necessary to adequately cool the medium to be cooled, which is also supplied to the evaporator 8.
  • the fully or partially evaporated refrigerant passes from the evaporator 8 into the condenser 9, where it is partially or completely liquefied again. Outside air is used as the coolant for the condensation of the refrigerant in the condenser 9, which air is available in sufficient quantity and inexpensively.
  • the refrigerant discharged from the condenser 9 to the liquid separator 3 is thus at least partially liquefied.
  • the remaining gas phase collects in the upper area of the liquid separator 3 and is taken up by the compression circuit 1 and liquefied in it.
  • the condenser 9 has the effect that the amount of gaseous refrigerant still to be liquefied in the compression circuit 1 is relatively small.
  • the refrigeration system according to FIG. 1 is modified so that a three-way valve 10 is inserted into the refrigerant line between the condenser 9 and the liquid separator 3, which valve is additionally connected to the refrigerant outlet of the evaporator 8.
  • the three-way valve 10 can be set so that it only connects the output of the condenser 9 in its first switching state and only the output of the evaporator 8 to the liquid separator 3 in its second switching state. In the first switching state, the system thus corresponds to that in Fig. 1, i.e. Evaporator 8 and condenser 9 are connected in series in the refrigerant circuit.
  • the condenser 9 is bridged by the line leading from the outlet of the evaporator 8 to the three-way valve 10. Since the connection between the outlet of the condenser 9 and the liquid separator 3 is interrupted by the three-way valve 10, the condenser 9 is thus completely removed from the low-pressure refrigerant circuit.
  • This second switching state will be selected when the temperature of the outside air supplied as a coolant to the condenser 9 is higher than that of the refrigerant leaving the evaporator 8.
  • the condenser 9 With the condenser 9 switched on, it would also act as an evaporator and cool the outside air, as a result of which the work to be performed by the compressor 4 would not only not be reduced but would even be increased.
  • the refrigeration system according to Fig. 2 will therefore be chosen when the temperature of the outside air fluctuates greatly. If the temperature of the outside air exceeds a certain value, depending on the temperature of the refrigerant, for example 25 ° C or 30 ° C, then the three-way valve 10 is switched to the second switching state, so that the condenser 9 is removed from the low-pressure circuit 2 and the Compressor 4 not loaded. If the temperature of the outside air falls below the mentioned value again, the condenser 9 is switched on again and relieves the load on the compressor 4.

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Mechanical Engineering (AREA)
  • Thermal Sciences (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Compression-Type Refrigeration Machines With Reversible Cycles (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)

Claims (2)

1. Installation frigorifique comprenant un circuit de compression (1) constitué d'un compresseur (4) raccordé à la zone de collecte de gaz d'un séparateur de liquide - agent frigorigène (3), d'un condenseur (5) monté en aval de ce compresseur et d'un élément de détente (6) qui vient ensuite et dont la sortie est ramenée dans la zone de collecte de gaz du séparateur de liquide-agent frigorigène (3), ainsi qu'un circuit à basse pression (2) qui part de la zone de collecte de liquide du séparateur de liquide - agent frigorigène (3) et débouche dans la zone de collecte de gaz de ce séparateur et qui comporte une pompe à agent frigorigène (7), un évaporateur noyé (8) comme refroidisseur de milieu et un condenseur (9) situé en aval de l'évaporateur (8) dans le sens d'écoulement de l'agent frigorigène, caractérisée en ce que la condensation de l'agent frigorigène peut être réalisée, directement ou indirectement par de l'air extérieur, dans le condenseur (9) du circuit à basse pression.
2. Installation frigorifique suivant la revendication 1, caractérisée en ce que le condenseur (9) peut être contourné dans le circuit à basse pression (2).
EP86730138A 1986-09-16 1986-09-16 Installation frigorifique Expired - Lifetime EP0260367B1 (fr)

Priority Applications (3)

Application Number Priority Date Filing Date Title
DE8686730138T DE3669916D1 (de) 1986-09-16 1986-09-16 Kaelteanlage.
AT86730138T ATE51440T1 (de) 1986-09-16 1986-09-16 Kaelteanlage.
EP86730138A EP0260367B1 (fr) 1986-09-16 1986-09-16 Installation frigorifique

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP86730138A EP0260367B1 (fr) 1986-09-16 1986-09-16 Installation frigorifique

Publications (2)

Publication Number Publication Date
EP0260367A1 EP0260367A1 (fr) 1988-03-23
EP0260367B1 true EP0260367B1 (fr) 1990-03-28

Family

ID=8196443

Family Applications (1)

Application Number Title Priority Date Filing Date
EP86730138A Expired - Lifetime EP0260367B1 (fr) 1986-09-16 1986-09-16 Installation frigorifique

Country Status (3)

Country Link
EP (1) EP0260367B1 (fr)
AT (1) ATE51440T1 (fr)
DE (1) DE3669916D1 (fr)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE69205546T2 (de) * 1991-11-20 1996-03-21 Air Prod & Chem Kältegerät und Kälteverfahren.
FR2697619A1 (fr) * 1992-10-30 1994-05-06 Cesbron Jf Installation de production et de distribution de froid d'un nouveau type.
JP4897284B2 (ja) * 2005-12-13 2012-03-14 サンデン株式会社 冷凍サイクル
JP2007303709A (ja) * 2006-05-10 2007-11-22 Sanden Corp 冷凍サイクル
EP3159626A1 (fr) * 2015-10-20 2017-04-26 Ulrich Brunner GmbH Circuit de pompe a chaleur
CN109114842A (zh) * 2018-09-27 2019-01-01 克莱门特捷联制冷设备(上海)有限公司 一种耦合型机房空调系统及其控制方法

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2096065A (en) * 1932-03-23 1937-10-19 Ruppricht Siegfried Refrigerating system
NL7601499A (nl) * 1976-02-13 1977-08-16 Cornelis Doomernik Koelinrichting met koudeaccumulator.
CA1234983A (fr) * 1982-12-10 1988-04-12 Claudio Rossi Unite de refroidissement pour fluides dans une installation de conditionnement d'air

Also Published As

Publication number Publication date
DE3669916D1 (de) 1990-05-03
ATE51440T1 (de) 1990-04-15
EP0260367A1 (fr) 1988-03-23

Similar Documents

Publication Publication Date Title
DE3809680C2 (fr)
DE60104034T2 (de) Kühleinheit mit "freier Kühlung", ebenso ausgelegt für den Betrieb mit variablem Durchfluss
DE3220335C2 (de) Wärmepumpensystem mit einer Kältemittelmischung
DE10138255B4 (de) Anordnung für Kaskadenkälteanlage
DE69421715T2 (de) Dreifacheffekt-absorptionskreislauf
DE3875006T2 (de) Waermepumpensystem.
DE69230588T2 (de) Absorptionskreislauf mit dreifache wirkung aufweisendem gerät
DE29516319U1 (de) Absorptionswärmetransformationsanlage mit Zusatzkomponenten zur Steigerung der Nutzleistung bzw. Erweiterung der Grenzen für die Antriebs-, Nutz- oder Kühltemperaturen
DE69401423T2 (de) Absorptionskälte- und wärmepumpenanlage
DE69004009T2 (de) Kühlanlage mit Zusatzwärmespeicher.
EP0260367B1 (fr) Installation frigorifique
DE1551314A1 (de) Kaeltesystem
EP0021205A2 (fr) Procédé de compression-absorption hybride pour pompes à chaleur ou machine frigorifique
DE2758547A1 (de) Verfahren zur verbesserung der energiebilanz von absorptionskaelteanlagen
EP0069756A1 (fr) Agencement de pompes a chaleur.
DE69509870T2 (de) Wärmeaustauschvorrichtung und verfahren für wärmeaustausch zwischen austreiber und absorber und anwendung derselben in einer wärmepumpe
EP2215412A1 (fr) Installation pour le refroidissement, le chauffage ou la climatisation, en particulier installations frigorifiques
DE69206442T2 (de) Vorrichtung mit Kältemittelkreislauf.
EP0239837A2 (fr) Procédé pour la récupération de la chaleur de condensation d'un système frigorifique et système frigorifique pour la mise en oeuvre du procédé
DE668922C (de) Kontinuierlich arbeitende Absorptionskaeltemaschine
DE3129957C2 (fr)
DE19832682C2 (de) Abtaueinrichtung für einen Verdampfer einer Wärmepumpe oder eines Klimageräts
DE19538348C2 (de) Sorptionswärmewandleranlage mit Zusatzkomponenten zur Steigerung der Nutzleistung bzw. Erweiterung der Grenzen für die Antriebs-, Nutz- oder Kühltemperaturen
DE8625036U1 (de) Kühlvorrichtung
DE2938565A1 (de) Verfahren zum anheben des temperaturniveaus von waerme mit hilfe einer absorptionswaermepumpe

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AT BE CH DE FR GB IT LI LU NL SE

17P Request for examination filed

Effective date: 19880303

17Q First examination report despatched

Effective date: 19881020

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): AT BE CH DE FR GB IT LI LU NL SE

REF Corresponds to:

Ref document number: 51440

Country of ref document: AT

Date of ref document: 19900415

Kind code of ref document: T

REF Corresponds to:

Ref document number: 3669916

Country of ref document: DE

Date of ref document: 19900503

GBT Gb: translation of ep patent filed (gb section 77(6)(a)/1977)
ET Fr: translation filed
ITF It: translation for a ep patent filed
RAP2 Party data changed (patent owner data changed or rights of a patent transferred)

Owner name: SMENTEK, ANNEMARIE

NLT2 Nl: modifications (of names), taken from the european patent patent bulletin

Owner name: ANNEMARIE SMENTEK TE BERLIJN, BONDSREPUBLIEK DUITS

PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

26N No opposition filed
PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: GB

Payment date: 19930901

Year of fee payment: 8

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: BE

Payment date: 19930914

Year of fee payment: 8

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: LU

Payment date: 19930915

Year of fee payment: 8

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: SE

Payment date: 19930916

Year of fee payment: 8

Ref country code: FR

Payment date: 19930916

Year of fee payment: 8

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: AT

Payment date: 19930924

Year of fee payment: 8

ITTA It: last paid annual fee
PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: NL

Payment date: 19930930

Year of fee payment: 8

Ref country code: CH

Payment date: 19930930

Year of fee payment: 8

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DE

Payment date: 19931011

Year of fee payment: 8

EPTA Lu: last paid annual fee
PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: LU

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 19940916

Ref country code: GB

Effective date: 19940916

Ref country code: AT

Effective date: 19940916

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SE

Effective date: 19940917

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: LI

Effective date: 19940930

Ref country code: CH

Effective date: 19940930

Ref country code: BE

Effective date: 19940930

EAL Se: european patent in force in sweden

Ref document number: 86730138.4

BERE Be: lapsed

Owner name: SMENTEK ANNEMARIE

Effective date: 19940930

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: NL

Effective date: 19950401

GBPC Gb: european patent ceased through non-payment of renewal fee

Effective date: 19940916

NLV4 Nl: lapsed or anulled due to non-payment of the annual fee
PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: FR

Effective date: 19950531

REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: DE

Effective date: 19950601

EUG Se: european patent has lapsed

Ref document number: 86730138.4

REG Reference to a national code

Ref country code: FR

Ref legal event code: ST

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES;WARNING: LAPSES OF ITALIAN PATENTS WITH EFFECTIVE DATE BEFORE 2007 MAY HAVE OCCURRED AT ANY TIME BEFORE 2007. THE CORRECT EFFECTIVE DATE MAY BE DIFFERENT FROM THE ONE RECORDED.

Effective date: 20050916