EP1197712B1 - Entleer- und Befüllvorrichtung für Kühlsysteme - Google Patents

Entleer- und Befüllvorrichtung für Kühlsysteme Download PDF

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Publication number
EP1197712B1
EP1197712B1 EP01201415A EP01201415A EP1197712B1 EP 1197712 B1 EP1197712 B1 EP 1197712B1 EP 01201415 A EP01201415 A EP 01201415A EP 01201415 A EP01201415 A EP 01201415A EP 1197712 B1 EP1197712 B1 EP 1197712B1
Authority
EP
European Patent Office
Prior art keywords
discharge
unit
refrigeration systems
gauge
refilling assembly
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
EP01201415A
Other languages
English (en)
French (fr)
Other versions
EP1197712A1 (de
Inventor
Mario Gorno
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.)
Comas SNC Di Vangelisti Vincenzo & C
Original Assignee
Comas SNC Di Vangelisti Vincenzo & C
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 Comas SNC Di Vangelisti Vincenzo & C filed Critical Comas SNC Di Vangelisti Vincenzo & C
Publication of EP1197712A1 publication Critical patent/EP1197712A1/de
Application granted granted Critical
Publication of EP1197712B1 publication Critical patent/EP1197712B1/de
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
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B35/00—Piston pumps specially adapted for elastic fluids and characterised by the driving means to their working members, or by combination with, or adaptation to, specific driving engines or motors, not otherwise provided for
    • F04B35/06—Mobile combinations
    • 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
    • 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
    • F25B2345/00—Details for charging or discharging refrigerants; Service stations therefor
    • F25B2345/002—Collecting refrigerant from 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
    • F25B2345/00—Details for charging or discharging refrigerants; Service stations therefor
    • F25B2345/007—Details for charging or discharging refrigerants; Service stations therefor characterised by the weighing of refrigerant or oil

Definitions

  • the present invention relates to a discharge and refilling assembly for refrigeration systems comprising the features of the preamble of claim 1.
  • Such an assembly is known, for example from US-A-5 715 692.
  • Such refrigeration systems irrespective of their specific use, require at the installation or from time to time maintenance interventions comprising as main or accessory step the discharge and refilling of refrigerant inside the system.
  • refilling assemblies have been used since a long time generally comprising a pump unit and a gauge unit associated to one another through suitable hoses and both supported by an external frame.
  • the external frame has the function of supporting the entire assembly, particularly useful in these conditions where the operator has to act in a restricted space and must keep all the instruments near him.
  • the gauge unit often must be changed according to the plant to be inspected and in this case as all the elements are fixed on the frame, time is required to disassemble the gauge unit and to assemble another gauge unit suitable for the new operation, so as to increase the maintenance costs.
  • the object of the present invention is to overcome the drawbacks belonging to the prior art systems.
  • Object of the present invention therefore is a discharge and refilling assembly for refrigeration systems which is compact and practical allowing to be used in any condition checking in a precise way the system tightness and better warranting quality of the introduced refrigerant gases.
  • the present invention provides for a discharge and refilling assembly for refrigeration systems comprising a pump unit and a gauge unit operatively associated to each other and possibly with a source of pressurized refrigerant gas, wherein said pump unit is associated to said gauge unit through a rigid duct supporting the gauge unit relative to the pump unit.
  • the discharge and refilling assembly for refrigeration systems is characterized by the features set forth in claim 1.
  • the discharge and refilling assembly 1 for refrigeration systems comprises a pump unit 2 and a gauge unit 3 operatively associated to each other and possibly to a source of pressurized refrigerant gas such as a cylinder 17 coupled to a portable balance 16 or equivalent weight measuring means.
  • the pump unit 2 comprises a vacuum pump 9 connected in cascade to an electromagnet valve 10, a vacuum gauge 11 and finally a rigid duct 8 connecting to a pressure gauge unit 3 and supporting the latter above said pump unit 2.
  • Said rigid duct 8 at the end connected to the pressure gauge unit 3 is provided with a fixed and rigid thus not flexible revolving fitting 18. More particularly said fitting comprises a first revolving knurled portion 19 to improve the user's grip, in direct contact with said pressure gauge unit 3 and provided with an inner seal 20. Said revolving portion 19 ends inside a second extension portion 21 in communication with said rigid duct 8 through a broached connection 22.
  • the pressure gauge unit 3 comprises according to the needs, a number of different instruments.
  • a low pressure gauge 4 connected to a first line communicating with the pump unit 2, the refrigerant cylinder 17 and a high pressure gauge 5, and to a second line communicating with a hose 12 provided near the end with a ball valve 13, said hose 12 being connected to the refrigeration system during operation.
  • Said high pressure gauge 5 is in a similar way connected to a first line communicating with said pump unit 2, refrigerant cylinder 17 and said low pressure gauge 4, and to a second line communicating with a hose 12 provided near the end with a ball valve 13, also said hose 12 being connected to the refrigeration system during operation.
  • Said first lines connecting the low and high pressure gauges 4, 5 with the pump unit 2 and the cylinder 17 are provided with low and high pressure valves 6, 7 respectively.
  • Said cylinder 17 coupled as shown to a balance 16 is connected through a ball valve 14 to a hose 12 whose other terminal portion ends on a couple of valves 15 from which the refrigerant line is starting, connected to said first lines of the low and high pressure gauges 4, 5 respectively.
  • a further difference occurs during the operation of checking the tightness of the refrigeration system in view of the provision of the vacuum gauge 11 and the electromagnetic valve 10 checking possible leaks with great precision.

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)
  • Filling Or Discharging Of Gas Storage Vessels (AREA)
  • Superconductors And Manufacturing Methods Therefor (AREA)
  • Manipulator (AREA)
  • Sorption Type Refrigeration Machines (AREA)
  • Spinning Or Twisting Of Yarns (AREA)
  • Non-Silver Salt Photosensitive Materials And Non-Silver Salt Photography (AREA)

Claims (5)

  1. Entleer- und Befüllvorrichtung für Kühlsysteme, umfassend ein Pumpenaggregat (2) und eine Messeinrichtung (3), bestehend aus einer Anzahl verschiedener Instrumente zur Druckmessung, wobei das Pumpenaggregat (2) und die Messeinrichtung (3) miteinander und eventuell mit einer Quelle eines druckbeaufschlagten Kältegases in einer Arbeitsbeziehung stehen, dadurch gekennzeichnet, dass das Pumpenaggregat (2) mit der Messeinrichtung (3) über eine starre Leitung (8), welche die Messeinrichtung (3) relativ zu dem Pumpenaggregat (2) stützt, verbunden ist, wobei die starre Leitung (8), die am Ende mit der Messeinrichtung (3) verbunden ist, mit einem ortsfesten und starren Drehanschlussstück (18) versehen ist, um ein einfacheres Anschließen und Trennen der Messeinrichtung (3) zu ermöglichen.
  2. Entleer- und Befüllvorrichtung für Kühlsysteme nach Anspruch 1, dadurch gekennzeichnet, dass das Drehanschlussstück (18) einen ersten gerändelten Drehabschnitt (19) umfasst, der in direktem Kontakt mit der Messeinrichtung (3) steht und eine innendichtung (20) aufweist, wobei der Drehabschnitt (19) im Inneren eines zweiten Verlängerungsabschnitts (21) endet, der über einen Anzapfanschluss (22) mit der starren Leitung (8) in einer Strömungsverbindung steht.
  3. Entleer- und Befüllvorrichtung für Kühlsysteme nach Anspruch 1, dadurch gekennzeichnet, dass das Pumpenaggregat (2) mit einem Unterdruckanzeiger (11) und einem elektromagnetischen Ventil (10), das mit einer Vakuumpumpe (9) verbunden ist, versehen ist, um die Dichtigkeit der Kühlsysteme zu überprüfen.
  4. Entleer- und Befüllvorrichtung für Kühlsysteme nach Anspruch 1, dadurch gekennzeichnet, dass die Quelle eines druckbeaufschlagten Kältegases wenigstens einen Zylinder (17) mit druckbeaufschlagtem Kältegas umfasst, der mit einem Gewichtsmessmittel verbunden ist, um das Gewicht des Gases zu prüfen, das von dem Zylinder (17) in die Kühlsysteme eingeleitet wird.
  5. Entleer- und Befüllvorrichtung für Kühlsysteme nach Anspruch 4, dadurch gekennzeichnet, dass das Gewichtsmessmittel eine elektronische Waage (16) - auch von einem programmierbaren Typ - umfasst.
EP01201415A 2000-10-13 2001-04-19 Entleer- und Befüllvorrichtung für Kühlsysteme Expired - Lifetime EP1197712B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ITMI000575 2000-10-13
IT2000MI000575U IT249831Y1 (it) 2000-10-13 2000-10-13 Gruppo vuoto e carica per sistemi refrigeranti

Publications (2)

Publication Number Publication Date
EP1197712A1 EP1197712A1 (de) 2002-04-17
EP1197712B1 true EP1197712B1 (de) 2005-02-02

Family

ID=11444538

Family Applications (1)

Application Number Title Priority Date Filing Date
EP01201415A Expired - Lifetime EP1197712B1 (de) 2000-10-13 2001-04-19 Entleer- und Befüllvorrichtung für Kühlsysteme

Country Status (5)

Country Link
EP (1) EP1197712B1 (de)
AT (1) ATE288571T1 (de)
DE (1) DE60108700T2 (de)
ES (1) ES2237526T3 (de)
IT (1) IT249831Y1 (de)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9228766B2 (en) 2006-05-04 2016-01-05 Brasscorp Limited Inspection port

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102006051865A1 (de) * 2006-10-31 2008-05-08 Behr Gmbh & Co. Kg Verfahren und Vorrichtung zum Befüllen eines Kältespeichers von einem Wärmeübertrager
JP5821412B2 (ja) * 2011-08-25 2015-11-24 三浦工業株式会社 冷媒充填装置
DE102014104709A1 (de) * 2014-04-02 2015-10-08 Krones Ag Behälterbehandlungsanlage mit Kälteanlage und Verfahren zur Inbetriebnahme einer Kälteanlage einer Behälterbehandlungsanlage
DE102015116327A1 (de) 2015-09-28 2017-03-30 Stefan Dorschner Vorrichtung und Gehäuse zur Messung eines Unterdruckes
CN106766434A (zh) * 2016-12-27 2017-05-31 同方威视技术股份有限公司 液态制冷剂补充装置

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3243969A (en) * 1964-01-27 1966-04-05 Lennox Ind Inc Arrangement and method for charging refrigerant into a capillary-controlled refrigeration system
US3538961A (en) * 1968-08-23 1970-11-10 Ralph E Bruce Refrigeration system servicing unit with dispensing pump and connector
DD128787A1 (de) * 1976-12-10 1977-12-07 Winfried Melzer Evakuier-und fuellgeraet fuer kaeltesysteme
US4470265A (en) * 1982-05-10 1984-09-11 Gerlach Industries Refrigerant charging system
US4493618A (en) * 1983-04-18 1985-01-15 Buzek Eric W Handle for compressor units
GB2177486A (en) * 1985-02-19 1987-01-21 Clifford Duward Raines Improved method and apparatus for servicing an air conditioning and refrigeration system
US4745772A (en) * 1987-04-20 1988-05-24 Ferris James E Air conditioner auxiliary filter/drier refrigerant and chemical additive transfer device
US5715692A (en) * 1996-05-28 1998-02-10 Pappas; Michael A. Refrigerant charging manifold valve
US5802859A (en) * 1996-12-16 1998-09-08 Hudson Technologies, Inc. Apparatus for recovering and analyzing volatile refrigerants

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9228766B2 (en) 2006-05-04 2016-01-05 Brasscorp Limited Inspection port

Also Published As

Publication number Publication date
IT249831Y1 (it) 2003-06-05
ITMI20000575U1 (it) 2002-04-13
DE60108700T2 (de) 2006-01-19
ATE288571T1 (de) 2005-02-15
ES2237526T3 (es) 2005-08-01
DE60108700D1 (de) 2005-03-10
EP1197712A1 (de) 2002-04-17

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