EP2233844B2 - Récipient d'extension à pression de membrane - Google Patents

Récipient d'extension à pression de membrane Download PDF

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Publication number
EP2233844B2
EP2233844B2 EP09003715.1A EP09003715A EP2233844B2 EP 2233844 B2 EP2233844 B2 EP 2233844B2 EP 09003715 A EP09003715 A EP 09003715A EP 2233844 B2 EP2233844 B2 EP 2233844B2
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EP
European Patent Office
Prior art keywords
membrane
vessel
layer
outer edge
gas
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.)
Active
Application number
EP09003715.1A
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German (de)
English (en)
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EP2233844B1 (fr
EP2233844A1 (fr
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Winkelmann Sp Z Oo
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Winkelmann Sp Z Oo
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Priority to ES09003715.1T priority Critical patent/ES2521500T5/es
Priority to DK09003715.1T priority patent/DK2233844T4/en
Priority to PT90037151T priority patent/PT2233844E/pt
Priority to EP09003715.1A priority patent/EP2233844B2/fr
Priority to SI200931048T priority patent/SI2233844T1/sl
Application filed by Winkelmann Sp Z Oo filed Critical Winkelmann Sp Z Oo
Priority to PL09003715T priority patent/PL2233844T5/pl
Priority to SI200931048A priority patent/SI2233844T2/sl
Publication of EP2233844A1 publication Critical patent/EP2233844A1/fr
Publication of EP2233844B1 publication Critical patent/EP2233844B1/fr
Publication of EP2233844B2 publication Critical patent/EP2233844B2/fr
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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 membrane expansion vessel for connection to a pipeline network with two vessel parts, which are pressure-tight and fluid-tightly interconnected in a circumferential connection region, the closed vessel interior formed by the two vessel parts being separated from a flat or half-shell-shaped membrane into a water space and a gas space is, wherein the water space is connectable via a connecting piece with the pipe network.
  • Such expansion vessels with membranes 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.
  • two different expansion vessel types are distinguished, namely vessels with two vessel parts and a flat or half-shell-shaped membrane and vessels with a bubble-shaped membrane which is inserted with its opening edge into the water connection of the expansion vessel and forms the water space.
  • the membrane can also form the gas space.
  • An expansion vessel is known in which the material of the membrane and the gas in the chamber closed by the membrane are selected to be coordinated with one another such that the diffusion coefficient of the gas with respect to the membrane material is as small as possible.
  • the diffusion behavior of the gas in relation on the membrane in the foreground ie it is a combination of special gas and membrane material selected.
  • this solution has not prevailed in practice, since nitrogen is still used to a large extent as gas.
  • an expansion vessel for connection to a conduit network with two vessel parts which are pressure-tight and fluid-tightly interconnected in a circumferential connection region, wherein the closed vessel interior formed by the two vessel parts is separated from a flat or half-shell-shaped membrane into a water space and a gas space , wherein the water space is connectable via a connecting piece with the pipe network.
  • the membrane is made of an elastic material, preferably rubber, and has for sealing the two vessel parts a specially designed, integrally formed with the membrane outer edge, namely a thickened columnar peripheral region with adjoining flange-like elements which overlap in the mounting position, the two peripheral edges of the vessel parts on the outside.
  • a container with membrane is known as a separation or expulsion organ for gaseous, liquid and solid media, in which a required for the membrane attachment clamping ring is designed as part of the container wall.
  • the clamping ring on circumferential webs for membrane mounting.
  • the object of the invention is to further develop a membrane expansion vessel so that a permeation of gas from the gas space into the water space is reliably avoided, without thereby significantly increasing the manufacturing and assembly costs.
  • a membrane expansion vessel available whose at least one-layer plastic membrane is gas impermeable, whereby a permeation of gas, in particular of air or nitrogen, is avoided.
  • the plastic material for example, an ethylene-vinyl alcohol copolymer (EVOH) can be used as a base.
  • the outer edge of the membrane is connected to a sealing element.
  • This circumferential sealing element is suitably applied to the outer edge of the membrane.
  • sealing element C-shaped is and surrounds the outer edge of the membrane top and bottom.
  • Such a C-shaped sealing element can be connected, for example by encapsulation with the outer edge of the membrane.
  • the sealing element consists of a sealing foam applied to the outer edge of the membrane.
  • a sealing foam e.g. On a 2K polyurethane base, manufacturing technology makes it particularly easy to apply to the outer edge of the membrane.
  • the sealing element thus follows the contour of the outer edge of the membrane, which is dependent on the particular vessel shape (e.g., round, polygonal, polygonal with rounded edges).
  • the pressure and fluid-tight connection of the two vessel parts is preferably ensured in a manner known per se by virtue of the fact that the two vessel parts are positively connected to one another in the connection region while clamping the outer edge of the membrane.
  • An example of such a positive connection is in the FIG. 1 of the DE 28 14 162 B2 shown.
  • the membrane itself is preferably formed according to a first preferred embodiment of a plastic blend.
  • a plastic blend in particular a polymer blend, is a molecularly distributed or microscopically dispersed plastic alloy, ie a mixture of at least two base plastics or base polymers.
  • a base material then preferably has the required elastic properties, which allows the deformation of the membrane under pressure changes, and the other the gas barrier properties.
  • the membrane consists of at least two layers Composite material having a first layer of an elastic plastic and a second layer connected to the first layer of an elastic gas-impermeable plastic.
  • the one layer serves as a carrier layer, to which, for example, by coextrusion, the second layer is applied.
  • the membrane has an at least three-layer structure, wherein the third layer consists of an elastic plastic.
  • the second layer of an elastic gas-impermeable plastic is then embedded on both sides.
  • Adhesion promoters may be provided between the layers.
  • a diaphragm pressure expansion vessel is in Fig. 1 generally designated 1.
  • This membrane expansion vessel 1 is formed in the embodiment as a flat vessel and suitable, for example, for insertion into a wall spa. But it can also have a different geometric design, for example, when used in conjunction with a boiler.
  • the membrane pressure expansion vessel 1 has two half-shell-shaped vessel parts 2, 3 made of metal.
  • the two vessel parts 2, 3 can basically have any desired geometric shape, e.g. also oval or angular.
  • the vessel parts 2, 3 are connected to one another in a pressure-fluid-tight and fluid-tight manner in a circumferential connection area, generally designated 4, which will be explained in more detail below.
  • a connecting piece 5 is provided for connecting the diaphragm expansion vessel 1 to a not shown line network.
  • the interior of the membrane expansion vessel 1 is subdivided by a membrane 6 into a water space 7 communicating with the connecting piece 5 and a gas space 8; this gas space 8 is provided with a gas under a predetermined overpressure, e.g. Air or nitrogen, filled.
  • a gas filling opening is provided, e.g. is closed by means of a simple plug or a gas filling valve 9.
  • Essential for the membrane pressure expansion vessel 1 is the design of the membrane 6. This preferably has a contour which is adapted to the half-shell-shaped contour of the vessel part 2 largely.
  • the membrane 6 consists of an at least single-layered gas-impermeable plastic, for example of a plastic blend, ie a plastic alloy of at least two components, one of which Part having elastic properties and the other gas impermeable properties.
  • the gas-impermeable component may be, for example, EVOH and, of course, is also so elastic that the diaphragm 6 can change its shape under pressure changes and compress the gas space 8.
  • the membrane 6 can be equipped with additional profiles, beads or the like, which is not shown in detail.
  • non-inventive embodiment of the membrane 6 this consists of an at least two-layer composite material, in Fig. 2 is a three-layer structure shown.
  • This membrane 6 consists of a first layer 6a made of an elastic plastic, for example propylene, a second layer 6b of an elastic gas-impermeable plastic, for example EVOH, and a third layer 6c, again of an elastic material, eg propylene (PP) or polyethylene ( PE).
  • PP propylene
  • PE polyethylene
  • an adhesion promoter can be provided between the layers.
  • Such a multilayer membrane 6 can be produced, for example, by coextrusion.
  • the outer edge 10 of the membrane 6 is preferably connected to the upper and lower sides in each case with a sealing element 11.
  • This sealing element 11 is preferably a sealing foam applied to the outer edge of the membrane 6, e.g. on 2K polyurethane base.
  • the membrane 6 is provided with its provided with the sealing elements 11 outer edge 10 in the connection region 4 between the two vessel parts 2, 3, then the vessel halves 2, 3 in the connection region 4, preferably positively, clamped together, for example by means of a circumferential clamping ring 12th
  • the membrane 6 then serves in addition to its actual membrane function at the same time as a sealing element in the connection region 4.
  • the sealing function is reliably ensured by the circumferential sealing element 11 at the outer edge 10 of the membrane 6, even if the material of the membrane 6 itself is not suitable as a sealant.
  • a single cross-sectionally C-shaped sealing element 11 ' is provided, which surrounds the outer edge 10 of the membrane 6 on the upper and lower sides and the outer edge 10 terminates radially outward.
  • Such a one-piece sealing element 11 ' can be connected to the membrane 6 by, for example, encapsulation of the membrane 6.
  • the invention is not limited to the illustrated embodiments. Further embodiments as described in the claims are possible.
  • the two vessel parts 2, 3 also, as mentioned above, have a different geometric shape.
  • the membrane 6 itself can also have only one or two-layer structure. If the membrane 6, as shown in the embodiments, has a three-layer structure, with appropriate choice of material, the sealing element can also be formed by the elastic layer 6a or 6c itself by appropriate material thickening. However, such an embodiment does not fall within the scope of the claims.

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)
  • Filling Or Discharging Of Gas Storage Vessels (AREA)
  • Diaphragms And Bellows (AREA)
  • Buffer Packaging (AREA)

Claims (5)

  1. Vase d'expansion à pression de membrane pour raccordement à un réseau de distribution avec deux parties de vase (2, 3), qui sont raccordées l'une à l'autre de manière étanche à la pression et aux fluides dans une zone de liaison périphérique (4), dans lequel l'espace interne du vase fermé formé par les deux parties de vase (2, 3) est séparé par une membrane (6) plate ou en forme de demi-coque en un espace d'eau (7) et un espace de gaz (8), dans lequel l'espace d'eau (7) peut être relié au réseau de distribution via une tubulure de raccordement (5), dans lequel la membrane (6) est formée d'une matière plastique d'au moins une couche et imperméable aux gaz et reliée sur son bord externe (10) à la périphérie à un élément d'étanchéité (11, 11'), dans lequel le bord externe (10) de la membrane (6) est intégré de manière étanche aux fluides à l'élément d'étanchéité (11, 11') dans la zone de liaison (4) entre les deux parties de vase (2, 3), l'élément d'étanchéité (11) étant appliqué sur le bord externe (10), l'élément d'étanchéité (11') étant conformé en C et enserre le bord externe (10) de la membrane (6) sur la face supérieure et la face inférieure.
  2. Vase d'expansion à pression de membrane selon la revendication 1,
    caractérisé en ce que
    les deux parties de vase (2, 3) sont reliées l'une à l'autre avec adaptation de formes dans la zone de liaison (4) par serrage du bord externe (10) de la membrane (6).
  3. Vase d'expansion à pression de membrane selon une ou plusieurs des revendications 1 ou 2,
    caractérisé en ce que
    la membrane (6) est formée d'un mélange de matières plastiques.
  4. Vase d'expansion à pression de membrane selon une ou plusieurs des revendications 1 à 3,
    caractérisé en ce que
    la membrane (6) est formée d'un matériau composite d'au moins deux couches avec une première couche en matière plastique élastique et une deuxième couche reliée à la première couche et formée d'une matière plastique élastique imperméable aux gaz.
  5. Vase d'expansion à pression de membrane selon la revendication 4,
    caractérisé en ce que
    la membrane (6) présente une structure à trois couches, dans laquelle la troisième couche est constituée d'une matière plastique élastique.
EP09003715.1A 2009-03-14 2009-03-14 Récipient d'extension à pression de membrane Active EP2233844B2 (fr)

Priority Applications (7)

Application Number Priority Date Filing Date Title
SI200931048A SI2233844T2 (sl) 2009-03-14 2009-03-14 Membranska tlačna ekspanzijska posoda
PT90037151T PT2233844E (pt) 2009-03-14 2009-03-14 Vaso de expansão por pressão de membrana
EP09003715.1A EP2233844B2 (fr) 2009-03-14 2009-03-14 Récipient d'extension à pression de membrane
SI200931048T SI2233844T1 (sl) 2009-03-14 2009-03-14 Membranska tlačna ekspanzijska posoda
ES09003715.1T ES2521500T5 (es) 2009-03-14 2009-03-14 Vaso de expansión de membrana a presión
PL09003715T PL2233844T5 (pl) 2009-03-14 2009-03-14 Membranowe ciśnieniowe naczynie rozszerzalne
DK09003715.1T DK2233844T4 (en) 2009-03-14 2009-03-14 Diaphragm pressure expansion tank

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP09003715.1A EP2233844B2 (fr) 2009-03-14 2009-03-14 Récipient d'extension à pression de membrane

Publications (3)

Publication Number Publication Date
EP2233844A1 EP2233844A1 (fr) 2010-09-29
EP2233844B1 EP2233844B1 (fr) 2014-09-17
EP2233844B2 true EP2233844B2 (fr) 2017-03-01

Family

ID=40933588

Family Applications (1)

Application Number Title Priority Date Filing Date
EP09003715.1A Active EP2233844B2 (fr) 2009-03-14 2009-03-14 Récipient d'extension à pression de membrane

Country Status (6)

Country Link
EP (1) EP2233844B2 (fr)
DK (1) DK2233844T4 (fr)
ES (1) ES2521500T5 (fr)
PL (1) PL2233844T5 (fr)
PT (1) PT2233844E (fr)
SI (2) SI2233844T2 (fr)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ITPD20100166A1 (it) * 2010-05-26 2011-11-27 Zilmet S P A Membrana per vasi di espansione
WO2017175220A1 (fr) * 2016-04-05 2017-10-12 Smart Global B. Energy Ltd Système de chauffage d'eau à chaudière intelligente et procédé associé
TR201906130A2 (tr) * 2019-04-25 2019-05-21 Oenaysan Enduestriyel Ueruenler Ueretim Ve Dis Ticaret Anonim Sirketi Genleşme tanki yapilanmasi

Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3442293A (en) † 1967-01-26 1969-05-06 Teves Gmbh Alfred Hydraulic accumulator with composite elastic diaphragm
DE2102969A1 (de) † 1971-01-22 1972-08-10 Erno Raumfahrttechnik Gmbh Behälter mit Membrane
GB1308332A (en) † 1969-03-03 1973-02-21 Mercier J Pressure vessels with deformable separator therein
US5036110A (en) † 1988-09-20 1991-07-30 Automobiles Peugeot Impervious resilient membrane and hydropneumatic accumulator fitted with that membrane
FR2685740A1 (fr) † 1991-12-27 1993-07-02 Tokai Rubber Ind Ltd Element de separation souple pour accumulateur hydraulique comprenant une couche d'arret du gaz en copolymere d'ethylene-alcool vinylique et une couche elastique en resine polyamide.
EP0790411A1 (fr) † 1996-02-15 1997-08-20 Amtrol Inc. Vase d'expansion résistant à la corrosion
US6058976A (en) † 1997-02-17 2000-05-09 Automobiles Peugeot Gas-impermeable elastic membrane and hydropneumatic accumulator equipped with this membrane
US6199717B1 (en) † 2000-06-09 2001-03-13 Fu-Jen Tsai Container for storing and supplying water under pressure
DE20310826U1 (de) † 2003-07-14 2003-09-18 Flamco Bv Membran für ein Ausdehnungsgefäß und Ausdehnungsgefäß mit einer solchen Membran
US20040045615A1 (en) † 2001-03-31 2004-03-11 Gernot Rupp Hydropneumatic pressure reservoir

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2371632A (en) * 1943-01-01 1945-03-20 Ideal Roller & Mfg Company Accumulator
FR2412789A1 (fr) 1977-12-23 1979-07-20 Viatour Sa Vase d'expansion a membrane
US4315527A (en) 1980-01-14 1982-02-16 Tmi Sales Corporation Expansion tanks for pressurized fluids and diaphragms therefor
DE3544754A1 (de) 1985-12-18 1987-06-19 Viessmann Werke Kg Waermedehnungsausgleichsvorrichtung
DE29511961U1 (de) * 1995-07-25 1995-09-28 Lin Ching Hsiung Druckwasserkessel
EP1876395A1 (fr) * 2006-07-08 2008-01-09 Winkelmann Sp. z o.o. Vase d'expansion avec membrane

Patent Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3442293A (en) † 1967-01-26 1969-05-06 Teves Gmbh Alfred Hydraulic accumulator with composite elastic diaphragm
GB1308332A (en) † 1969-03-03 1973-02-21 Mercier J Pressure vessels with deformable separator therein
DE2102969A1 (de) † 1971-01-22 1972-08-10 Erno Raumfahrttechnik Gmbh Behälter mit Membrane
US5036110A (en) † 1988-09-20 1991-07-30 Automobiles Peugeot Impervious resilient membrane and hydropneumatic accumulator fitted with that membrane
FR2685740A1 (fr) † 1991-12-27 1993-07-02 Tokai Rubber Ind Ltd Element de separation souple pour accumulateur hydraulique comprenant une couche d'arret du gaz en copolymere d'ethylene-alcool vinylique et une couche elastique en resine polyamide.
EP0790411A1 (fr) † 1996-02-15 1997-08-20 Amtrol Inc. Vase d'expansion résistant à la corrosion
US6058976A (en) † 1997-02-17 2000-05-09 Automobiles Peugeot Gas-impermeable elastic membrane and hydropneumatic accumulator equipped with this membrane
US6199717B1 (en) † 2000-06-09 2001-03-13 Fu-Jen Tsai Container for storing and supplying water under pressure
US20040045615A1 (en) † 2001-03-31 2004-03-11 Gernot Rupp Hydropneumatic pressure reservoir
DE20310826U1 (de) † 2003-07-14 2003-09-18 Flamco Bv Membran für ein Ausdehnungsgefäß und Ausdehnungsgefäß mit einer solchen Membran

Also Published As

Publication number Publication date
EP2233844B1 (fr) 2014-09-17
ES2521500T3 (es) 2014-11-12
SI2233844T2 (sl) 2017-05-31
EP2233844A1 (fr) 2010-09-29
ES2521500T5 (es) 2017-07-04
PT2233844E (pt) 2014-11-03
SI2233844T1 (sl) 2014-12-31
DK2233844T4 (en) 2017-04-24
PL2233844T3 (pl) 2015-01-30
DK2233844T3 (da) 2014-11-03
PL2233844T5 (pl) 2017-10-31

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