EP2051030B1 - Verfahren zur Temperaturkontrolle von CO2 und zur Messung und Füllung von CO2-Systemen - Google Patents

Verfahren zur Temperaturkontrolle von CO2 und zur Messung und Füllung von CO2-Systemen Download PDF

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Publication number
EP2051030B1
EP2051030B1 EP08388037A EP08388037A EP2051030B1 EP 2051030 B1 EP2051030 B1 EP 2051030B1 EP 08388037 A EP08388037 A EP 08388037A EP 08388037 A EP08388037 A EP 08388037A EP 2051030 B1 EP2051030 B1 EP 2051030B1
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EP
European Patent Office
Prior art keywords
filling
valve
process unit
unit
hose part
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.)
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Application number
EP08388037A
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English (en)
French (fr)
Other versions
EP2051030A2 (de
EP2051030A3 (de
Inventor
Louis B. Cording
Bjarne Lund
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.)
Agramkow Fluid Systems AS
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Agramkow Fluid Systems AS
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Publication of EP2051030A2 publication Critical patent/EP2051030A2/de
Publication of EP2051030A3 publication Critical patent/EP2051030A3/de
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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
    • F25B45/00—Arrangements for charging or discharging refrigerant
    • 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
    • F25B2309/00—Gas cycle refrigeration machines
    • F25B2309/06—Compression machines, plants or systems characterised by the refrigerant being carbon dioxide
    • 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
    • F25B2345/00—Details for charging or discharging refrigerants; Service stations therefor
    • F25B2345/001—Charging refrigerant to a cycle
    • 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
    • F25B9/00—Compression machines, plants or systems, in which the refrigerant is air or other gas of low boiling point
    • F25B9/002—Compression machines, plants or systems, in which the refrigerant is air or other gas of low boiling point characterised by the refrigerant
    • F25B9/008—Compression machines, plants or systems, in which the refrigerant is air or other gas of low boiling point characterised by the refrigerant the refrigerant being carbon dioxide

Definitions

  • Refrigerants e.g. R22 (contains chlorine), R134a (HFC) and R717 (naturally inorganic) typically have a critical point, which means that the contents are only to be found in a supercritical gas-like condition at 70-130 °C, and, therefore, they are far from normal ambient temperatures.
  • WO 2006/066580 A1 describes a method and a system for filling of either gaseous or liquid CO 2 on a refrigerant system, in particular an air conditioning system (A/C- system) of a vehicle, Liquid CO 2 is filled into the A/C-system by a first filling valve connected to the lower part of an internal reservoir containing liquid CO 2 and through a filling coupling. Gaseous CO 2 is fed from the upper part of the internal reservoir and to a second filling valve and through the filling coupling.
  • a similar system is disclosed in " Filling in workshop and production Agramkow - the safe chioce", VDA alternate refrigerant winter meeting, 13 februar 2003, p. 1-34 , wherein a CO 2 charging unit comprises a gas to liquid converter, a pump and a metering device, and wherein CO 2 is charged into an A/C-system through a valve.
  • the object of the invention is to provide a method of the type stated in the opening paragraph, which makes it possible to avoid formation of gas and thereby to keep CO 2 in liquid form, thereby allowing the amount of CO 2 to be metered correctly.
  • the circulation valve connects the first hose part and the second hose part in the filling unit, by which the circulation valve returns the liquid CO 2 entering the filling unit from the first hose part through the second hose part and back to the process unit for cooling.
  • Claim 4 discloses a system for carrying out the method of claims 1-3 wherein temperature control of CO 2 as well as metering and filling of CO 2 systems is performed by means of a system having a process unit and a filling unit having a filling valve, which is characterized in the process unit having a container, a pump and a meter for metering liquid CO 2 when filling the CO 2 systems mounted in the liquid CO 2 circulation line and having cooling means, and wherein a circulation valve is mounted in the liquid CO 2 circulation line in the process unit or in the filling unit, and where a first and a second hose part, in which liquid CO 2 is circulated from the process unit to the filling unit and back to the process unit for cooling, connects the process unit and the filling unit.
  • the system according to claim 5 is particularly suitable for carrying out the method according to claim 1-2 wherein the circulation valve is mounted in the filling unit, and connects the first hose part and the second hose part.
  • the system according to claim 6 is particularly suitable for carrying out the method according to claim 1 and 3, wherein the circulation valve is mounted in circulation line in the process unit, and a parallel valve is mounted in the process unit and connecting the first hose part and the second hose part.
  • the filling adapter used may be constructed more compactly, which may be an advantage depending on the circumstances.
  • Figure 1 shows a system for temperature control of CO 2 , in which CO 2 is pumped continuously through a hose 8 from the process unit 1, which is cooled to below 31.1 °C and comprises a container 2, a pump 3 and a meter 4, through a circulation valve 6 in the filling unit 5, which comprises a circulation valve 6 and a filling valve 7, and back to the process unit again via a second hose part 8' for cooling.
  • Figure 3 shows an alternative system for temperature control of CO 2 , in which CO 2 is pumped continuously through a hose 8 from the process unit 1, which is cooled to below 31.1 °C and comprises a container 2, a pump 3, a meter 4, a circulation valve 6 and a parallel valve 9, through the filling unit 5, which comprises a filling valve 7, and back to the process unit again via a second hose part 8' for cooling.
  • Figure 4 shows the alternative system of figure 3 , now used for metering and filling of CO 2 systems, as the circulation valve 6 is closed, the parallel valve 9 and the filling valve 7 are opened, whereby CO 2 may be metered by the passage through the meter 4 and be filled into the CO 2 system through the filling valve 7.

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Mechanical Engineering (AREA)
  • Thermal Sciences (AREA)
  • General Engineering & Computer Science (AREA)
  • Filling Of Jars Or Cans And Processes For Cleaning And Sealing Jars (AREA)
  • Filling Or Discharging Of Gas Storage Vessels (AREA)

Claims (6)

  1. Verfahren zur Temperatursteuerung von CO2 sowie zum Messen und Füllen von CO2-Systemen mittels eines Systems mit einer Prozesseinheit (1) und einer Fühleinheit (5) mit einem Füllventil (7), dadurch gekennzeichnet, dass flüssiges CO2 bei einer Temperatur unter 31,1°C durch ein erstes Schlauchteil (8) kontinuierlich von der Prozesseinheit (1) zu der Fülleinheit (5) und über ein zweites Schlauchteil (8') wieder zurück zu der Prozesseinheit zum Kühlen gepumpt wird, wonach ein Zirkulationsventil (6) geschlossen und das Füllventil (7) geöffnet wird, wodurch CO2 durch den Durchtritt durch ein Messgerät (4) in der Prozesseinheit (1) gemessen und durch das Füllventil (7) in das CO2-Systems gefüllt wird.
  2. Verfahren nach Anspruch 1, dadurch gekennzeichnet, dass das Zirkulationsventil (6) das erste Schlauchteil (8) und das zweite Schlauchteil (8') in der Fülleinheit (5) verbindet, wodurch das Zirkulationsventil (6) das flüssige CO2, das in die Fülleinheit (5) eintritt, von dem ersten Schlauchteil (8) durch das zweite Schlauchteil (8') und zurück zu der Prozesseinheit (1) zum Kühlen zurückbringt.
  3. Verfahren nach Anspruch 1, dadurch gekennzeichnet, dass das Zirkulationsventil (6) in der Prozesseinheit (1) angeordnet ist und ein normalerweise geschlossenes paralleles Ventil (9) in der Prozesseinheit (1) die ersten und zweiten Schlauchteile (8, 8') verbindet, und wobei das Füllen und Messen von CO2 in die CO2-Systeme durch das Schließen des zirkulationsventils (6) und Öffnen des parallelen Ventils (9) und des Filllventils (7) ausgelöst wird.
  4. System zur Temperatursteuerung von CO2 sowie zum Messen und Füllen von CO2-Systemen mittels eines Systems mit einer Prozesseinheit (1) und einer Fülleinheit (5) mit einem Füllventil (7), dadurch gekennzeichnet, dass die Prozesseinheit (1) einen Behälter (2), eine Pumpe (3) und ein Messgerät (4) zum Messen von flüssigem CO2, wenn die in der Zirkulationsleitung für flüssiges CO2 angeordneten CO2-Systeme gefüllt werden, und Kühlmittel aufweist, und wobei ein Zirkulationsventil (6) in der Zirkulationsleitung für flüssiges CO2 in der Prozesseinheit (1) oder in der Fülleinheit (5) anordnet ist, und wobei ein erstes und ein zweites Schlauchteil (8, 8'), in denen flüssiges CO2 von der Prozesseinheit (1) zu der Fülleinheit (5) und zurück zu der Prozesseinheit zum Kühlen zirkuliert wird, die Prozesseinheit (1) und die Fülleinheit (5) verbindet.
  5. System nach Anspruch 4, dadurch gekennzeichnet, dass das Zirkulationsventil (6) in der Fülleinheit (5) angebracht ist und das erste Schlauchteil (8) und das zweite Schlauchteil (8') verbindet.
  6. System nach Anspruch 4, dadurch gekennzeichnet, dass das Zirkulationsventil (6) in der Prozesseinheit (5) in einer Zirkulationsleitung angeordnet ist und ein paralleles Ventil (9) in der Prozesseinheit (1) angeordnet ist und das erste Schlauchteil (8) und das zweite Schlauchteil (8') verbindet.
EP08388037A 2007-10-15 2008-10-14 Verfahren zur Temperaturkontrolle von CO2 und zur Messung und Füllung von CO2-Systemen Active EP2051030B1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DKPA200701483 2007-10-15

Publications (3)

Publication Number Publication Date
EP2051030A2 EP2051030A2 (de) 2009-04-22
EP2051030A3 EP2051030A3 (de) 2010-02-24
EP2051030B1 true EP2051030B1 (de) 2013-01-23

Family

ID=40239775

Family Applications (1)

Application Number Title Priority Date Filing Date
EP08388037A Active EP2051030B1 (de) 2007-10-15 2008-10-14 Verfahren zur Temperaturkontrolle von CO2 und zur Messung und Füllung von CO2-Systemen

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EP (1) EP2051030B1 (de)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102008021488A1 (de) * 2008-04-29 2009-11-26 Vulkan Lokring-Rohrverbindungen Gmbh & Co. Kg Füllen von Kühlkreisläufen mit flüssigem Kältemittel
DE102014011051A1 (de) * 2014-07-22 2016-01-28 Dürr Somac GmbH Vorrichtung zur Befüllung von Fahrzeugklimasystemen mit Kältemittel R744
ITUA20163839A1 (it) * 2016-05-26 2017-11-26 Texa Spa Apparecchio di manutenzione di un impianto di condizionamento ad anidride carbonica di un veicolo a motore e relativo metodo di funzionamento

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH1137579A (ja) * 1997-07-11 1999-02-12 Zexel Corp 冷凍装置
DE10015976B4 (de) * 2000-03-30 2019-07-04 Mahle International Gmbh Befüllvorrichtung für Kraftfahrzeugklimaanlagen
JP4070583B2 (ja) * 2002-11-14 2008-04-02 大阪瓦斯株式会社 圧縮式ヒートポンプシステム
DK176740B1 (da) * 2004-12-14 2009-05-25 Agramkow Fluid Systems As Fremgangsmåde og anlæg til kölemiddelpåfyldning på et köleanlæg

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EP2051030A3 (de) 2010-02-24

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