EP2109742B1 - Automatische fülleinheit für hydraulische systeme mit geschlossenen heizsystemen und dergleichen - Google Patents

Automatische fülleinheit für hydraulische systeme mit geschlossenen heizsystemen und dergleichen Download PDF

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Publication number
EP2109742B1
EP2109742B1 EP08720199.2A EP08720199A EP2109742B1 EP 2109742 B1 EP2109742 B1 EP 2109742B1 EP 08720199 A EP08720199 A EP 08720199A EP 2109742 B1 EP2109742 B1 EP 2109742B1
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EP
European Patent Office
Prior art keywords
valve
automatic filling
automatic
filling unit
bypass conduit
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.)
Not-in-force
Application number
EP08720199.2A
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English (en)
French (fr)
Other versions
EP2109742A2 (de
Inventor
Corrado Giacomini
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.)
Giacomini SpA
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Giacomini SpA
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Application filed by Giacomini SpA filed Critical Giacomini SpA
Publication of EP2109742A2 publication Critical patent/EP2109742A2/de
Application granted granted Critical
Publication of EP2109742B1 publication Critical patent/EP2109742B1/de
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24D—DOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATING SYSTEMS; DOMESTIC HOT-WATER SUPPLY SYSTEMS; ELEMENTS OR COMPONENTS THEREFOR
    • F24D3/00—Hot-water central heating systems
    • F24D3/10—Feed-line arrangements, e.g. providing for heat-accumulator tanks, expansion tanks ; Hydraulic components of a central heating system
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24D—DOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATING SYSTEMS; DOMESTIC HOT-WATER SUPPLY SYSTEMS; ELEMENTS OR COMPONENTS THEREFOR
    • F24D3/00—Hot-water central heating systems
    • F24D3/10—Feed-line arrangements, e.g. providing for heat-accumulator tanks, expansion tanks ; Hydraulic components of a central heating system
    • F24D3/1083—Filling valves or arrangements for filling

Definitions

  • the present invention relates to an automatic filling unit for hydraulic systems with a closed circuits, like heating systems and similar, according to the preamble to claim 1, wherein document EP-A-1 239 231 reveals all the features of the preamble of claim 1.
  • closed circuit hydraulic systems such as heating systems, air conditioning systems, heating/cooling systems, and the like
  • heating systems after their installation require to be filled with the necessary quantity of operating circulation water
  • filing is also necessary after any total or partial emptying of said systems, e.g. because the radiators are vented or the systems are modified.
  • the collective definition of "heating system(s)" means the various executions of closed circuit hydraulic systems, in order to avoid repetitions.
  • the automatic filling of heating systems occurs by means of known automatic filling valve units in various embodiments and constructed conceptually as shown schematically in figure 1 , in which the automatic filling valve 1 of the valve unit T is inserted in a pipeline 2 connected at one side, through an upstream on-off valve 3, to a water inlet pipeline 4 and, at the other side, through a downstream on-off valve 5, to an inlet pipeline 6 of the heating system, not shown.
  • the valve 1 is provided with a calibration valve, which can generally be set, not shown herein, able to be controlled through a hand wheel 7 to select the predetermined filling pressure, which can be read on the pressure gauge 8.
  • Said calibration spring operatively associated to a on-off valve, not shown, forms an automatic system for opening/closing the direct path of the flow.
  • the valve unit 1 also comprises a manual valve 9 as well as a filter, not shown, for retaining the impurities present in the passing flow of water.
  • the prior art also provides an external bypass conduit 11 comprising its own on-off valve 12, for a manual charging of the system in much shorter times.
  • a cock 13 is generally provided, which serves the purpose of reducing operating pressure or emptying the system.
  • the document US 5 960 818 A discloses a filling fitting for filling a closed hot-water heating system and comprising a tube separator including an upstream backflow preventer, a downstream backflow preventer, a drain valve as well as a pressure reducer, wherein the disclosed construction allows the downstream pressure reducer to be used in two different manner.
  • a filter 128, wherein said filter is housed in a stable manner is integrated in the proposed filling fitting inside the pressure reducer 24 .
  • the automatic filling unit according to the invention several important advantageous are achieved.
  • the external bypass conduit with the related on-off valve present therein is eliminated.
  • the external bypass conduit necessary for a rapid filling of the heating system, is advantageously provided inside the valve body of the filling unit, so that the known external bypass conduit is eliminated altogether, the size of the filling unit is reduced and the installation of the proposed filling unit is facilitated and made faster.
  • the filling unit according to the invention also facilitates the stocking of the necessary installation components, because the union components and tubular sectors necessary for the construction of the known external bypass conduit are eliminated altogether.
  • bypass conduit within the body of the automatic filling valve, said body is enlarged by a negligible amount and said bypass conduit is obtained from the automatic shaving removal machining, slightly increased with respect to the machining already required to obtain the valve body, and with a wholly negligible lengthening of the machining time, so that, on one hand, production costs are obtained that are substantially similar to those expected for the production of the bodies of known automatic filling valves and, on the other hand, with the elimination of the external bypass conduit, a considerable saving in material is obtained along with reduced installation times.
  • the automatic filling unit T comprises an automatic filling valve with a valve body 20, which houses a known opening/closing system 21a, which comprises a calibration spring 21, that is antagonist to the pressure P downstream of the valve 1 and that acts on the membrane 22.
  • the valve body 20 comprises an inlet fitting 23 and an outlet fitting 24 able to be connected, the first with the water inlet pipeline, not shown, through an on-off valve 25, and the second is connected, through an on-off valve 26, to the pipeline, not shown, for entering the heating system, not shown.
  • the arrow F indicates the direction of the flow of the water into the heating system.
  • a filter 27 for retaining impurities, as well as a check valve 28, to prevent reverse flow phenomena in the case of a sudden pressure drop upstream of the valve 1.
  • an internal bypass path 11 derived from the inlet fitting 23 and ending in the outlet fitting 24, whereas on the inlet side of said bypass 11 is provided an on/off valve 12, whose shutter 29 is able to close the shut-off port 30 of said bypass conduit 11 on the inlet side.
  • the hand-wheel for controlling the shutter 29 is designated with the reference number 31.
  • Figures 3-5 also show that the shutter 32 of the on-off valve co-operating with the calibration spring 21 and forming therewith the known opening/closing system 21a is able to close the seat 33 of said opening/closing system.
  • a gauge 8 for reading the downstream pressure P.
  • valve body 20 has a union 34 with internal thread for housing the coupling thread 35 of a cartridge 36 housing, preferably coaxially, said filter 27 and said check valve 28 mentioned above.
  • Housing the filter 27 and the check valve 28 in the cartridge 3 6 allows to rapidly remove said cartridge 36 and clean the filter, or to replace the check valve 28 even with the automatic filling valve 1 installed, after simply closing the two on-off valves 25 and 26, even with the heating system in operation.

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Check Valves (AREA)
  • Fluid-Pressure Circuits (AREA)
  • Details Of Valves (AREA)

Claims (5)

  1. Automatische Fülleinheit (T) für hydraulische Systeme mit einem geschlossenen Kreis, welche Folgendes umfasst:
    ein automatisches Füllventil (1) mit einem im Körper (20) des automatischen Füllventils (1) untergebrachten automatischen Öffnungs-/Schließsystem (21a) mit einer Feder (21), die gegen den stromabwärts auftretenden Druck wirkt, wobei die automatische Fülleinheit (T) ein Einlassstück (23), das mit der Wasserverteilungsrohrleitung zu verbinden ist, sowie ein Auslassstück (24), das mit dem Einlass des Heizsystems zu verbinden ist, aufweist, und auch ein Rückschlagventil (28), das zwischen dem Einlassstück (23) und dem Auslassstück (24) in einem direkten Strömungsweg zwischen dem Einlassstück (23) und dem Auslassstück (24) angeordnet ist, sowie eine Umgehungsleitung (11), die zwischen dem Einlassstück (23) und dem Auslassstück (24) angeordnet ist, und worin ein Schaltventil (12) untergebracht ist, wodurch der Umgehungsweg innerhalb der automatischen Fülleinheit (T), d.h. des Körpers des automatischen Füllventils, erhalten ist,
    dadurch gekennzeichnet, dass
    i) die automatische Fülleinheit auch einen Filter (27) umfasst, wobei der Filter (27) und das Rückschlagventil (28), die stromabwärts des automatischen Öffnungs-/Schließsystems (21a) bereitgestellt sind, axial übereinander in einer Patrone (36) untergebracht sind, die entfernbar am Körper (20) des automatischen Füllventils (1) befestigt ist, und dass
    ii) das Schaltventil (12) ein Handrad zum Steuern des Verschlusses (29) aufweist, wodurch eine Schließöffnung (30) der Umgehungsleitung (11) geschlossen werden kann.
  2. Automatische Fülleinheit (T) nach Anspruch 1, dadurch gekennzeichnet, dass die Patrone (36), die im Körper (20) des automatischen Füllventils (1) angebracht ist, eine Achse aufweist, die zur Achse des automatischen Öffnungs-/Schließsystems (21a) koaxial ist.
  3. Automatische Fülleinheit (T) nach Anspruch 1, dadurch gekennzeichnet, dass in der Umgehungsleitung (11) das Schaltventil (25) im Zweig der Umgehungsleitung (11) stromaufwärts des automatischen Öffnungs-/Schließsystems (21a) des automatischen Füllventils (1) angeordnet ist.
  4. Verfahren zum Betreiben der automatischen Fülleinheit (T) nach den Ansprüchen 1 und 3, dadurch gekennzeichnet, dass bei geschlossenem Schaltventil (25) der Umgehungsleitung (11) die Füllströmung zwischen dem Einlassstück (23) und dem Auslassstück (24) durch den für das automatische Öffnungs-/Schließsystem (21a) bereitgestellten direkten Strömungsweg stattfindet, während bei geöffnetem Schaltventil (25) der Umgehungsleitung (11) die Füllströmung teilweise durch den Weg des automatischen Öffnungs-/Schließsystems (21a) und vorherrschend durch die Umgehungsleitung (11) stattfindet.
  5. Automatisches Füllsystem für hydraulische Systeme mit einem geschlossenen Kreis, beispielsweise ein Heizsystem, dadurch gekennzeichnet, dass es eine automatische Fülleinheit (T) nach einem oder mehreren der Ansprüche 1 bis 4 aufweist.
EP08720199.2A 2007-01-22 2008-01-21 Automatische fülleinheit für hydraulische systeme mit geschlossenen heizsystemen und dergleichen Not-in-force EP2109742B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ITMI20070088 ITMI20070088A1 (it) 2007-01-22 2007-01-22 Gruppo di riempimento automatico per impianti idraulici a circuito chiuso come impianti di riscaldamentome simili
PCT/IT2008/000029 WO2008090581A2 (en) 2007-01-22 2008-01-21 Automatic filling unit for hydraulic systems with a closed circuit like heating systems and similar

Publications (2)

Publication Number Publication Date
EP2109742A2 EP2109742A2 (de) 2009-10-21
EP2109742B1 true EP2109742B1 (de) 2014-03-19

Family

ID=39644965

Family Applications (1)

Application Number Title Priority Date Filing Date
EP08720199.2A Not-in-force EP2109742B1 (de) 2007-01-22 2008-01-21 Automatische fülleinheit für hydraulische systeme mit geschlossenen heizsystemen und dergleichen

Country Status (3)

Country Link
EP (1) EP2109742B1 (de)
IT (1) ITMI20070088A1 (de)
WO (1) WO2008090581A2 (de)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE202014003273U1 (de) 2014-04-17 2015-07-22 Stiebel Eltron Gmbh & Co. Kg Mediumkreislauf mit einer Umweltwärmequelle

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR3007112B1 (fr) * 2013-06-14 2015-07-17 Vergne Innovation Dispositif de remplissage d'un circuit de chauffage comprenant un disconnecteur
EP3693671B1 (de) * 2019-02-08 2023-06-21 Vaillant GmbH Füllsystem mit thermischer betätigungsvorrichtung
GB2614703A (en) * 2021-12-22 2023-07-19 Intaco Ltd Connector

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5960818A (en) 1998-09-08 1999-10-05 Hans Sasserath & Co. Kg Filling fitting for filling a closed hot-water heating system
NL1017198C1 (nl) 2001-01-26 2002-07-29 Jan Henk Cnossen Verwarming voor vloeistof.
GB2377745A (en) * 2001-02-07 2003-01-22 Heatrae Sadia Heating Ltd A replenishment system

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE202014003273U1 (de) 2014-04-17 2015-07-22 Stiebel Eltron Gmbh & Co. Kg Mediumkreislauf mit einer Umweltwärmequelle

Also Published As

Publication number Publication date
WO2008090581A3 (en) 2008-11-27
ITMI20070088A1 (it) 2008-07-23
EP2109742A2 (de) 2009-10-21
WO2008090581A2 (en) 2008-07-31

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