EP2182294A1 - Vase d'expansion - Google Patents

Vase d'expansion Download PDF

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Publication number
EP2182294A1
EP2182294A1 EP08018779A EP08018779A EP2182294A1 EP 2182294 A1 EP2182294 A1 EP 2182294A1 EP 08018779 A EP08018779 A EP 08018779A EP 08018779 A EP08018779 A EP 08018779A EP 2182294 A1 EP2182294 A1 EP 2182294A1
Authority
EP
European Patent Office
Prior art keywords
connecting piece
expansion vessel
pressure expansion
pressure
piece
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
EP08018779A
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German (de)
English (en)
Other versions
EP2182294B1 (fr
Inventor
Karl Czenki
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.)
Reflex Winkelmann GmbH
Original Assignee
Reflex Winkelmann 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
Application filed by Reflex Winkelmann GmbH filed Critical Reflex Winkelmann GmbH
Priority to EP08018779.2A priority Critical patent/EP2182294B1/fr
Publication of EP2182294A1 publication Critical patent/EP2182294A1/fr
Application granted granted Critical
Publication of EP2182294B1 publication Critical patent/EP2182294B1/fr
Active 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
    • F24D3/1008—Feed-line arrangements, e.g. providing for heat-accumulator tanks, expansion tanks ; Hydraulic components of a central heating system expansion tanks
    • 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
    • F24D3/1008—Feed-line arrangements, e.g. providing for heat-accumulator tanks, expansion tanks ; Hydraulic components of a central heating system expansion tanks
    • F24D3/1016—Tanks having a bladder

Definitions

  • the invention relates to a pressure expansion vessel for connection to a pipeline network with a partitioned by a separator into a water and a gas chamber interior, wherein the water space via a connecting piece pressure-tight with a tubular fitting of the pipe network is connectable.
  • expansion vessels are used to accommodate changes in volume, for example, by pressure-dependent switching on and off of pumps, by pressure shock absorbers or temperature-related in closed fluid circuits that occur in water supply systems or heating circuits.
  • the separating element is formed by an elastic membrane, which separate the water and the gas chamber pressure-tight from each other.
  • the pipe network has a tubular shaped piece, which may be formed in the simplest embodiment of a arranged in the pipe network tee.
  • This tubular fitting is usually provided with an internal thread, in which the connecting piece of the pressure expansion vessel, which has an external thread in such a configuration, is screwed.
  • the pipe network may also have a specially designed connection fitting, which in turn is equipped with a tubular fitting, in which the connection piece of the pressure expansion vessel can be screwed. It is obvious that a pressure-tight connection between the connecting piece of the pressure expansion vessel and the fitting of the pipe network must exist.
  • the connecting piece of the expansion vessel is previously prepared by the fitter by hand with hemp or sealing tapes and then the connection piece is inserted into the fitting. This requires considerable experience of assembly personnel to ensure a tight connection. In addition, this type of seal is cumbersome and time consuming.
  • Pressure expansion vessels of the type described above are, for example DE 101 05 393 C1 and DE 93 04 583 U1 known. These documents show the nature of the previous connection of a pressure expansion vessel to a pipeline network in various designs.
  • a pressure expansion vessel in which a nut is screwed onto the connecting piece of the expansion vessel.
  • This nut serves as a fastening means for a special holding device of the vessel, the connection of the connecting piece itself with a non-illustrated fitting of the pipe network is carried out in the conventional manner described above.
  • the object of the invention is to improve a pressure expansion vessel so that a pressure-tight connection of the vessel to a pipeline network is substantially simplified.
  • the connecting piece has a radially projecting annular projection which has a circumferential sealing surface on the side facing the tubular fitting of the pipe network to which rests an annular sealing element arranged on the connecting piece.
  • the connecting piece has a radially projecting annular projection, which forms or has a sealing surface on the side facing away from the vessel, against which an annular sealing element bears.
  • the seal between the connecting piece of the pressure expansion vessel and the fitting of the conduit network is thus effected by the sealing element between the sealing surface of the annular projection and the end face of the tubular fitting of the conduit network and not, as in the prior art, between the threads of the connecting piece and the fitting. This design also improves the seal.
  • the sealing surface is formed by a circumferential groove in which the annular sealing element is partially received.
  • This embodiment is particularly suitable when using an O-ring seal. If, however, a flat gasket is used, the groove is not required.
  • connection piece Since most fittings or tubular fittings are common piping equipped with an internal thread, it is preferably provided that the connection piece has an external thread and, accordingly, the fitting has a corresponding internal thread.
  • the annular projection of the connection piece is formed by a screw-on nut which can be screwed onto the connection piece.
  • the connection piece itself must then be compared to conventional ones Vessels are not changed, the annular projection of the connecting piece is formed by an additional nut, which is provided with a corresponding groove for receiving the sealing element.
  • the nut can be arranged axially on the connecting piece in a suitable manner, which increases the variability, ie one and the same Druckausdehnungsgfäß with a predetermined length of connecting piece is suitable for different length-sized tubular fittings of different networks, as the axial distance between the nut and the vessel is changeable.
  • annular projection is an integral part of the connecting piece.
  • the connecting piece itself has integrally a corresponding annular projection with sealing surface and possibly receiving groove for the sealing element.
  • the annular sealing element may in principle have any desired geometric cross-sectional shape, but is preferably an O-ring seal.
  • the separating element is formed by a (elastic) membrane.
  • FIG. 1 A pressure expansion vessel for connection to a mains network is in FIG. 1 generally designated 1.
  • This pipeline network is a closed fluid circuit, eg a heating or service water system.
  • the pressure expansion vessel in the illustrated embodiment, two approximately half-shell-like vessel halves 2, 3, which are pressure-tightly connected to each other.
  • a graphically not shown serving as a separating element membrane, preferably made of an elastic plastic, which separates the vessel interior into a water space 4 and a gas space 5.
  • a pressurized gas such as nitrogen, added, which is fed via a gas filling valve 6.
  • the water chamber 4 is connected via a connecting piece 7 with the pipe network, not shown in connection.
  • the connecting piece 7 is pressure and fluid tight connected to the vessel half 3, for example, welded.
  • the connecting piece 7 is used for connection to a tubular fitting of the pipe network.
  • This tubular fitting may be a simple T-tube piece that is part of the conduit network, but it may also be a connection fitting that includes a tubular fitting, in which the connecting piece 7 is inserted.
  • the connecting piece 7 has an external thread 8, the tubular fitting of the pipe network is then provided with a corresponding internal thread.
  • the connecting piece 7 is screwed into the tubular fitting of the pipe network in a conventional manner.
  • the connecting piece 7 has a radially projecting, annular projection 9, this annular projection 9 is formed in the illustrated embodiment of a screwed onto the connecting piece 7 nut.
  • this annular projection 9 could also be an integral part of the connecting piece 7, i. be formed integrally with this, which is not shown in the drawing.
  • the annular projection 9 has, on the side facing away from the pressure expansion vessel 1 and the tubular fitting of the line network not facing side facing a sealing surface, which is formed in the embodiment of a circumferential groove 10.
  • a sealing surface which is formed in the embodiment of a circumferential groove 10.
  • an annular sealing element 11 is partially received, it is radially on the outside of a groove 10 limiting shoulder 12 and radially inwardly on the circumference of the connecting piece 7 at.
  • the sealing element 11 may e.g. be formed by an O-ring seal.
  • the connecting piece 7 is simply screwed into the tubular fitting of the pipe network, and indeed so far, until the axial end face 13 of the annular projection 9 rests against the opposite end face of the tubular fitting.
  • the annular sealing member 11 is sealingly pressed into the forming gap, the sealing member 11 seals between the annular projection 9 and the end face of the tubular fitting.
  • the invention is not limited to the illustrated embodiment. Further embodiments are possible without departing from the basic idea.
  • the annular projection 9 can also be an integral part of the connecting piece 7. If, however, as shown, but designed as a nut, there is the additional advantage that the axial arrangement of the annular projection 9 on the connecting piece 7 is variable.
  • the groove 10 may also be missing and the annular projection 9 have a flat sealing surface.

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)
  • Separation Using Semi-Permeable Membranes (AREA)
  • Gasket Seals (AREA)
EP08018779.2A 2008-10-28 2008-10-28 Vase d'expansion Active EP2182294B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP08018779.2A EP2182294B1 (fr) 2008-10-28 2008-10-28 Vase d'expansion

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP08018779.2A EP2182294B1 (fr) 2008-10-28 2008-10-28 Vase d'expansion

Publications (2)

Publication Number Publication Date
EP2182294A1 true EP2182294A1 (fr) 2010-05-05
EP2182294B1 EP2182294B1 (fr) 2017-03-01

Family

ID=40551561

Family Applications (1)

Application Number Title Priority Date Filing Date
EP08018779.2A Active EP2182294B1 (fr) 2008-10-28 2008-10-28 Vase d'expansion

Country Status (1)

Country Link
EP (1) EP2182294B1 (fr)

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4364416A (en) * 1981-09-25 1982-12-21 Vsi Corporation Low cost accumulator device
US5176178A (en) * 1991-02-20 1993-01-05 Aos Holding Company Accumulator with randomly uniplanar bladder collapse
DE9304583U1 (de) 1992-04-10 1993-06-03 Wormmeester, Johan Gerrit, Driebergen Konsole zum Aufhängen eines Ausdehnungsgefäßes
DE19740674A1 (de) * 1997-02-20 1998-08-27 Reflex Winkelmann & Pannhoff G Blasenförmige Membran
DE19510360C2 (de) 1995-03-22 1999-09-02 Kaldewei Franz Gmbh & Co Druckausgleichsgefäß
US6129236A (en) * 1999-02-23 2000-10-10 Otkrytoe Aktsionernoe Obschestvo Nauchno-Proizvodstvennoe Obiedinenie "Energomash" Imeni Akademika V.P. Glushko Tank for the liquid storage and expulsion
DE10105393C1 (de) 2001-02-06 2002-07-25 Rudolf Vollmer Sicherheitsgruppe zur Absicherung eines geschlossenen Trinkwassererwärmers

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4364416A (en) * 1981-09-25 1982-12-21 Vsi Corporation Low cost accumulator device
US5176178A (en) * 1991-02-20 1993-01-05 Aos Holding Company Accumulator with randomly uniplanar bladder collapse
DE9304583U1 (de) 1992-04-10 1993-06-03 Wormmeester, Johan Gerrit, Driebergen Konsole zum Aufhängen eines Ausdehnungsgefäßes
DE19510360C2 (de) 1995-03-22 1999-09-02 Kaldewei Franz Gmbh & Co Druckausgleichsgefäß
DE19740674A1 (de) * 1997-02-20 1998-08-27 Reflex Winkelmann & Pannhoff G Blasenförmige Membran
US6129236A (en) * 1999-02-23 2000-10-10 Otkrytoe Aktsionernoe Obschestvo Nauchno-Proizvodstvennoe Obiedinenie "Energomash" Imeni Akademika V.P. Glushko Tank for the liquid storage and expulsion
DE10105393C1 (de) 2001-02-06 2002-07-25 Rudolf Vollmer Sicherheitsgruppe zur Absicherung eines geschlossenen Trinkwassererwärmers

Also Published As

Publication number Publication date
EP2182294B1 (fr) 2017-03-01

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