EP2725237B1 - Membrane et agencement de récipient - Google Patents

Membrane et agencement de récipient Download PDF

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Publication number
EP2725237B1
EP2725237B1 EP13185662.7A EP13185662A EP2725237B1 EP 2725237 B1 EP2725237 B1 EP 2725237B1 EP 13185662 A EP13185662 A EP 13185662A EP 2725237 B1 EP2725237 B1 EP 2725237B1
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EP
European Patent Office
Prior art keywords
diaphragm
elastic
container
membrane
pressure ratio
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Not-in-force
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EP13185662.7A
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German (de)
English (en)
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EP2725237A1 (fr
Inventor
Herwig Miessbacher
Wolfgang Meyer
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.)
Semperit AG Holding
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Semperit AG Holding
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Publication of EP2725237A1 publication Critical patent/EP2725237A1/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
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B1/00—Installations or systems with accumulators; Supply reservoir or sump assemblies
    • F15B1/02—Installations or systems with accumulators
    • F15B1/04—Accumulators
    • F15B1/08—Accumulators using a gas cushion; Gas charging devices; Indicators or floats therefor
    • F15B1/10—Accumulators using a gas cushion; Gas charging devices; Indicators or floats therefor with flexible separating means
    • F15B1/12—Accumulators using a gas cushion; Gas charging devices; Indicators or floats therefor with flexible separating means attached at their periphery
    • F15B1/14—Accumulators using a gas cushion; Gas charging devices; Indicators or floats therefor with flexible separating means attached at their periphery by means of a rigid annular supporting member
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B2201/00—Accumulators
    • F15B2201/30—Accumulator separating means
    • F15B2201/315—Accumulator separating means having flexible separating means
    • F15B2201/3151—Accumulator separating means having flexible separating means the flexible separating means being diaphragms or membranes
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B2201/00—Accumulators
    • F15B2201/30—Accumulator separating means
    • F15B2201/315—Accumulator separating means having flexible separating means
    • F15B2201/3155—Accumulator separating means having flexible separating means characterised by the material of the flexible separating means

Definitions

  • the present invention relates to a membrane, in particular a pressure expansion vessel, and a container arrangement, which is designed in particular as a pressure expansion vessel.
  • Expansion tanks or surge tank of the type in question are well known in the art.
  • surge tanks are designed as components in hydraulic systems that absorb the change in volume of the hydraulic fluid between minimum and maximum temperature and thus should keep the pressure largely constant.
  • expansion tanks are used in heating systems and domestic water, cold water, solar and hydraulic circuits.
  • Such expansion tank have a flexible membrane, in particular a rubber membrane, which separates the liquid and the gas storage within a container usually formed by two container halves.
  • the materials used for the rubber membrane are usually expensive, poorly available and difficult to process.
  • such rubber membranes must be manufactured with a corresponding wall thickness. However, this increases the material costs and reduces the flexibility of the membrane. Further, at higher temperatures, the durability of the membrane and its increasing permeability pose challenges.
  • the DE 20 2006 015 642 U1 relates to a membrane expansion vessel for connection to a conduit network with two vessel halves, which are pressure-tight and fluid-tightly interconnected in a circumferential connection region, wherein the vessel interior formed by the two vessel halves of a membrane in a water space and a gas space is separated, wherein the water space is connectable via a connecting piece with the pipe network.
  • a membrane for a container in particular a pressure expansion vessel
  • the membrane can be arranged within a container and has a working area which is designed for a displacement in the container, wherein a pressure ratio can be applied to the membrane in the container, wherein the work area is at least partially formed of a first material that is substantially rigid at the pressure ratio, and wherein the work area has at least one elastic region that behaves elastically at the pressure ratio, whereby the working area within the container, preferably by the pressure ratio, is verla-rerable.
  • Such containers or pressure expansion vessels are advantageously used in heating systems and industrial water, cold water, solar and hydraulic circuits, etc., in order to compensate for volume changes of a fluid.
  • the membrane preferably divides the container into a fluid space and a gas storage or gas space.
  • the fluid or the liquid is preferably water, which may preferably be provided in heating systems with corresponding heating additives.
  • the fluid space hereinafter referred to as water space, is connected to the water cycle of, for example, the heating system.
  • the gas space is provided with a plant-related form.
  • the pressure ratio thus results in the rule between the pressure in the water space, which is preferably connected to the water cycle of the heating system, and the pressure in the gas space, which preferably via a valve, in particular a lockable cap valve, which is arranged on the container with a Pre-pressure can be acted upon.
  • this function separation takes place, since the work area is at least partially formed of a first material, which behaves substantially rigid in the pressure ratio. The first material therefore does not allow any displacement on its own, since it is essentially not deformable in the applied pressure conditions.
  • the first material is a material which is characterized by a very high durability, the lowest permeability and lowest cost.
  • the gas in the gas space is nitrogen. If the working area, which is exposed to direct contact with the gas space, has a high permeability, the set admission pressure in the gas space would drop considerably over time and the system functionality would no longer be guaranteed. Nitrogen would diffuse from the gas space into the water space. It is understood that conversely, the permeation of H 2 O must be prevented by the membrane.
  • the first material prevents the diffusion of substances from the gas space into the fluid space and vice versa.
  • the at least one elastic region is provided.
  • the working region of the membrane formed from the first material is thus mounted, so to speak, movably over the at least one elastic region within the container.
  • the first material expediently has a lower gas and / or fluid / liquid permeability (also referred to below as "permeability") than the elastic region.
  • the elastic region is more elastic than the first material.
  • values of flexural strength and / or tensile strength of the first material are higher than those of the elastic region.
  • the permeability of the first material does not change or only slightly with increasing temperature.
  • the permeability does not increase as the temperature in the container increases. Underlying temperature ranges are in a range of about 50 to 70 ° C and higher.
  • a consistent function of the membrane over the entire life of the container is possible.
  • the work area comprises the first material substantially in a central region of the membrane which extends substantially parallel to a membrane plane, wherein the at least one elastic region is arranged around the central region.
  • the named form corresponds in an ideal way with the common or known forms of such containers or pressure expansion vessels. These generally have a cylindrical and / or rectangular shape, wherein the membrane is arranged in a round cross-section of the container, which results from the cylindrical shape. Preferably, therefore, the membrane is substantially round or more preferably approximately circular.
  • the membrane plane, which extends substantially parallel to the membrane or vice versa, is therefore advantageously perpendicular to a longitudinal axis of the container or parallel to the cross section of the container.
  • the central region is approximately round or preferably also substantially circular in shape and, so to speak, annularly surrounded by the elastic region.
  • the elastic region provides a flexible interface or a soft bearing between the (rigid) central region formed from the first material and the usually of a metal, for.
  • the rigid middle region is displaceable relative to the rigid container. The volume fluctuations of the fluid or water can thus be compensated in an ideal manner, although the working range of the membrane is formed of the first material, which behaves rigidly under the prevailing pressure conditions. It is understood that the central region formed from the first material need not be circular.
  • the work area is formed radially from a center of the membrane at least partially either from the first material or from the elastic region.
  • the center of the membrane lies on an axis of the substantially cylindrical container.
  • Central region or starting from the center now extends the first material.
  • the first material extends to a first radius. Between the first radius and a second radius, starting from the center, then extends exclusively annularly the elastic region.
  • a ratio of the first to the second radius in a range of about 0.3 to 0.95, more preferably in a range of about 0.4 to 0.9 or about 0.5 to 0.85.
  • the working region formed from the first material is preferably formed flat as a substantially flat disc.
  • other embodiments are conceivable, for example, a wavy or zigzag-shaped configuration or a spherical shape, in particular a substantially hemispherical design and / or a dome shape.
  • the waveform or the zigzag shape and / or an angular shape extend substantially concentrically starting from the center.
  • the transition from the first material to the elastic region can advantageously be continuous and / or stepped.
  • an adhesive method is given, via which the elastic region is joined to the first material.
  • a shock can be formed, as mentioned, but also a stepless transition possible.
  • an encapsulation and / or encapsulation or casting and / or injection of the elastic region on or on the first material is preferred.
  • a direct adhesion of the soft components to the hard components, in other words the elastic region on the first material is possible.
  • the first material and the elastic region are coordinated with respect to the adhesion.
  • suitable adhesives which improve the adhesion of the first material to the elastic region.
  • the working region is also formed radially from the center of the membrane and also partially only from the elastic region.
  • Such embodiments are preferably of interest if the work area formed from the first material with soft components z. B. is injected.
  • the off Workspace formed the first material a plastic molding, in particular with a ribbing.
  • the molded part formed from the first material is preferably encapsulated with a soft material, which forms or forms the flexible region.
  • the encapsulation takes place in such a way that the working area in a cross section parallel to the membrane plane partially consists of the first material and the elastic region.
  • sections are also provided in the work area, in which only the elastic region is present transversely to the membrane plane.
  • a work area formed from the first material can advantageously also have an extension transverse to the membrane plane.
  • the extension can be advantageously designed in the form of ribs, profiles or webs, etc. Further, undercut, openings, slots and the like may be provided.
  • the focus here is not only that such trained and formed from the first material work areas have only good rigidity, they should also work well with other materials, eg. As elastomers, can be encapsulated.
  • the working area in a cross section substantially perpendicular to the membrane plane at least partially the elastic region and the first material.
  • a layer structure is also preferred which, as it were, provides a sequence of the elastic region and the first material.
  • the layer structure is only partially provided.
  • a substantially round central region formed from the first material, above and below, ie substantially transversely to the membrane plane is surrounded by the elastic region. Since the first material is provided only in the middle region, the elastic region is still preferably provided annularly around the rigidly formed central region. In other words, the first material is embedded in the elastic region, so to speak.
  • the arrangement can also be such that only one surface of the rigidly formed working area is provided with the elastic region.
  • the first material and the elastic region can be glued together.
  • the first material can also be encapsulated and / or cast on by the elastic region.
  • a thickness of the first material that measures substantially in a direction transverse to the membrane is at a maximum extension of the elastic range in that direction in a ratio of 0.001 to 0.5, more preferably in a range of about 0, 0015 to 0.4 or about 0.002 to 0.3. Also preferably, a ratio greater than about 0.5 or greater than about 1, after which the first material is then formed thicker in relation to the elastic region.
  • the area is addressed in which the first material and the elastic region are provided transversely to the membrane or to the membrane plane. If there are several "layers" of first material and elastic regions, so to speak, the thicknesses of the individual layers are added together to calculate the ratio.
  • the ratio is to be selected such that the best possible compromise between lowest permeability and maximum flexibility is guaranteed.
  • the thickness can be reduced compared to the prior art, whereby more cost-effective membranes are manufacturable.
  • an extremely low permeability and thus freedom from maintenance can be achieved.
  • an attachment portion is formed in an edge region of the membrane, via which the membrane can be arranged between and / or on two container halves, wherein the edge region is the at least one elastic region.
  • the addressed, substantially cylindrical, container are constructed from two substantially cylindrical container halves. The arrangement of the membrane between the container halves is preferably carried out positively and / or non-positively. Alternatively preferably, a cohesive connection is conceivable.
  • the attachment portion is formed as a bead-starting ring.
  • the attachment portion has at least one reinforcing element, preferably a plastic and / or a metal ring.
  • the reinforcing element is preferably also substantially circumferentially within the Attachment section formed.
  • a cross section of the reinforcing element is preferably substantially round or circular. Alternatively preferred also angular cross-sectional shapes are used.
  • a plurality of, for example, two, three, four or more reinforcing elements within the mounting portion can be arranged. Likewise preferred is also an arrangeability not within the attachment portion but at the attachment portion.
  • the first material has a lower permeability than a second material, wherein the elastic region is formed from the second material.
  • the material used in the prior art for the membrane is typically IIR (isobutene-isoprene rubber, butyl rubber), which is expensive, poorly available and difficult to process. Furthermore, the permeation of IIR increases with increased temperature. This has the consequence that the nitrogen cushion must be renewed after a defined time and the system is not maintenance-free.
  • the first material is a metal sheet or PA (polyamide) or PET or PBT (polyethylene terephthalate / polybutylene terephthalate). The first material thus preferably has a higher tensile strength and / or flexural strength than the second material.
  • the first material has a lower permeability (gas and / or fluid / liquid permeability) than the second material.
  • the permeability is constant over different temperature ranges.
  • the permeability of the first material does not increase as the temperature increases (or decreases).
  • the permeability is advantageously constant or approximately constant in the temperature ranges prevailing in the mentioned fields of application.
  • a combination of materials from the aforementioned materials is conceivable.
  • the materials mentioned for the first material show a much lower permeability than z.
  • the second material is preferably an elastomer or a flexible material.
  • the first material may therefore also be an elastomer, for example an elastomer, which has a higher flexural rigidity, a higher tensile strength and a lower permeability than the second material, which is also an elastomer.
  • Decisive is advantageously the separation of functions, namely to provide an elastic region which allows the displacement of the work area per se (by its elasticity) and to make a portion of the working area so that it has a very low permeability or a lower permeability than the elastic region or the second material, for.
  • B. IIR has.
  • the ratio of an area of the first material to an area of the elastic range is in a range of about 0.001 to 0.7, more preferably in a range of about 0.002 to 0.65, or about 0.003 to 0.6
  • the term surface means the surfaces of the region formed from the first material and the elastic region which form substantially parallel to the membrane plane. This also includes the possibly covered by the second material portions of the first material. The above-mentioned ribs, undercuts and the like are not to be counted.
  • the working area formed from the first material and / or the elastic area in an unloaded state have shapes that do not extend at least partially parallel to the membrane plane (for example due to a curved or wavy shape), then the areas for calculating the ratios assume the surfaces projected vertically on the membrane plane.
  • a strength and / or rigidity of the first material transverse to the membrane plane is greater than a strength and / or rigidity of the elastic region in this direction.
  • a uniform positioning of the membrane can be ensured even when moving within the container.
  • the membrane and in particular the region of the membrane, which is made of the elastic region, thereby preferably assumes during displacement a substantially parallel position to the membrane plane in the unloaded state or to the two container halves.
  • the first material and the elastic region are connected via at least one contact region, wherein the contact region has a lower gas and / or fluid / liquid permeability than the elastic region.
  • the contact region thus enables a gas-tight seal between the first material and the elastic region.
  • the contact region extends substantially transversely to the membrane plane. This is the case, in particular, when the elastic region or the second material is arranged radially around the first material in the membrane plane. It is understood that the contact region may also preferably also extend obliquely or in particular parallel to the membrane plane, in particular when the elastic region or the second material surround the first material.
  • a thickness of the first material transverse to the membrane plane substantially corresponds to a thickness of the elastic region transverse to the membrane plane.
  • the elastic region need not be thickened, for example to reduce the permeability. This would increase costs through increased material requirements and reduce flexibility.
  • the first material serves to reduce the permeability.
  • the membrane can be made gastight with little use of materials and thereby extremely flexible.
  • the first material is formed by the elastic region is treated at least partially with a chemical process, a heat treatment and / or with a coating.
  • the first material is formed by treating the elastic region or the second material with a chemical process, a heat treatment and / or with a coating.
  • a container arrangement in particular a pressure expansion vessel, a container and a membrane of a first material, wherein the membrane has a working area, which for a displacement in the container is designed, wherein in the container, a pressure ratio on the membrane can be applied, wherein the work area is formed of a first material which behaves substantially rigid at a pressure ratio, wherein the working area has at least one elastic region, which in the Pressure ratio behaves elastically, whereby the working area within the container, preferably by the pressure ratio, is displaced.
  • a ratio of a maximum thickness of the second material in a region which has exclusively the second material essentially transversely to the membrane plane lies at a maximum extension of the membrane parallel to the membrane plane in a ratio of approximately 0.00001 to 0, 05, more preferably in a range of about 0.0001 to 0.002, or about 0.0005 to 0.001.
  • the maximum thickness is measured essentially transversely to the membrane plane. If the region of the second material is not parallel to the membrane plane, the maximum thickness of the second material is calculated substantially perpendicular to the surface of the corresponding region.
  • At least one further element is arranged on the membrane.
  • the further element may be a subsequently applied foil or subsequently applied foils, which may further reduce the permeability.
  • paints or the like are attachable to reduce the permeability.
  • the first material is suitable because of its rigidity that more elements can be attached. This would not be possible if the first material were not dimensionally stable when moving the work area.
  • Fig. 1 shows a preferred embodiment of a membrane 20 having a working area 22 which is arranged between a fluid space 66 and a gas space 64. Between the fluid space 66 and the gas space 64, a pressure ratio .DELTA.p is established.
  • the working area 22 has a first material 40 in its middle area 26.
  • the membrane 20 or the working area 22 is aligned substantially parallel to a membrane plane E.
  • a center of the membrane is marked by a midpoint 27.
  • the central region 26 is bordered by an edge region 28, which in Fig. 1 an elastic region 44 and in the preferred embodiment consists of a second material 42.
  • the edge region 28 ends in a fastening section 24.
  • the fastening section 24 is in the in Fig.
  • the membrane 20 has a thickness d. Starting from the center 27, the first material extends in a radius r1. Up to an edge of the membrane 20 extends from the center 27 a diameter r2. In the illustrated preferred embodiment, the radii r 2 and r 1 result in the substantially annular configuration of the elastic region 44.
  • Fig. 2 shows a preferred embodiment of a container assembly in a sectional view in two different states of displacement of a membrane 20.
  • a container 60 is connected by two container halves 62.
  • the upper container half 62 has a connection (without reference numeral), via which water can be introduced into a fluid space 66.
  • the fluid space 66 is separated from the gas space 64 by the membrane 20 or a working area 22.
  • a state is shown in which there is a low pressure in the fluid space 66 in comparison to the gas space 64.
  • a pressure ratio .DELTA.p is thus designed so that the membrane 20 or the working area 22 is displaced from the gas space 64 in the direction of the fluid space 66.
  • a pressure in the gas space 64 is thus higher than a pressure in the fluid space 66.
  • Fig. 2 shows clearly that only one edge region 28, which represents an elastic region 44, is deformed. In contrast, a state is shown in the right-hand half of the image or container in which a high pressure prevails in the fluid space 66 compared to the gas space 64.
  • the resulting pressure ratio .DELTA.p causes the membrane 20 or the working area 22 is displaced from the fluid space 66 in the direction of the gas space 64 back.
  • the working area 22 consists of a first material 40 in a middle area 26.
  • the edge area 28 is designed as the elastic area 44.
  • Fig. 2 shows a substantially flat formed central region 26. Alternatively, the middle region 26 is preferably z. B.
  • the elastic region 44 consists of the second material 42.
  • the edge region 28 further has a fastening section 24 of bead-shaped design in the preferred embodiment, which is likewise formed from the second material 42.
  • a reinforcing element 80 is arranged inside the fastening section 24, which essentially has a round or circular cross-section.
  • the reinforcing element 80 is formed as an at least partially running ring made of a hard material or hard components such as a plastic and / or metal ring.
  • an alternative preferred embodiment of the reinforcing element 80 is shown.
  • the form is one similar in the left half of the picture, however, three smaller reinforcing elements 80 are preferably arranged here.
  • the lower container half 62 shows a sketch of a valve (without reference numeral), via which the gas pressure in the gas space 64 is adjustable.
  • the two container halves 62, which form the container 60 are each connected in the edge region 28 or in the attachment portion 24 of the membrane 20 via a type of clip (without reference numerals) positively and / or non-positively.
  • this attachment is applicable via at least one clip, since it can be clamped from the outside by the reinforcing elements 80, which so to speak support the fastening section 24 from the inside. An excellent sealing effect is the result.
  • Fig. 3 shows a preferred embodiment of a membrane 20 in a plan view.
  • the membrane 20 has the known division of a working area 22 into a middle area 26 and an edge area 28.
  • the middle region 26 comprises a middle point 27.
  • the working region 22 is made in the middle region 26 from a first material 40.
  • the edge region 28 consists of a second material 42 and thus constitutes an elastic region 44.
  • the second material 42 and a first material 40 are arranged at least partially simultaneously. So shows Fig. 3 an existing from the first material 40 plastic molding with ribs 29 which extend radially away from the center 27 and pass over flanks 29 'in a substantially flat plate 30.
  • the plastic molding is at least partially encapsulated with the second material 42 and at least partially surrounded by the second material 42 as a result.
  • flexibility in the sense of an elastic region 44 is achieved only in the edge region 28.
  • no first material 40 is provided in the central region 26 of the membrane 20 is thus in Fig. 3 Partly a layered structure, so to speak.

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Thermal Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Fluid Mechanics (AREA)
  • Separation Using Semi-Permeable Membranes (AREA)

Claims (14)

  1. Membrane d'un récipient, en particulier d'un vase d'expansion sous pression, dans lequel la membrane (20) est susceptible d'être agencée à l'intérieur d'un récipient (60) et comporte une zone de travail (22) qui est conçue pour un déplacement dans le récipient (60),
    dans laquelle dans le récipient (60) une différentielle de pression (Δp) est susceptible d'être appliquée à membrane (20), dans laquelle la zone de travail (22) est réalisée au moins partiellement en un premier matériau (40) qui se comporte essentiellement de manière rigide sous la différentielle de pression (□p) et empêche une diffusion de matières ou de gaz et/ou de liquides, et
    dans laquelle la zone de travail (22) comprend au moins une zone élastique (44) qui se comporte de manière élastique sous la différentielle de pression (Δp), en raison de quoi la zone de travail (22) est déplaçable à l'intérieur du récipient (60), de préférence sous la différentielle de pression (Δp),
    caractérisée en ce que
    la zone de travail (22) comprend le premier matériau (40) essentiellement dans une zone médiane (26) de la membrane (20), et
    dans laquelle la zone médiane (26) est exclusivement formée du premier matériau (40), ou
    dans laquelle la zone médiane (26) formée du premier matériau (40) est entourée au-dessus et/ou au-dessous au moins localement avec le matériau élastique, et
    dans laquelle le premier matériau (40) présente une perméabilité aux gaz et/ou aux fluides/liquides plus faible que la zone élastique.
  2. Membrane (20) selon la revendication 1,
    dans laquelle la membrane (20) s'étend sensiblement parallèlement à un plan de membrane (E), et
    dans laquelle ladite au moins une zone élastique (44) est agencée tout autour de la zone médiane (26).
  3. Membrane (20) selon la revendication 1 ou 2,
    dans laquelle la zone de travail (22), considérée radialement en partant d'un point central (27) de la membrane (20), est formée au moins localement soit à partir du premier matériau (40) soit à partir de la zone élastique (44).
  4. Membrane (20) selon la revendication 3,
    dans laquelle une épaisseur (d) du premier matériau (40), mesurée sensiblement dans une direction transversale à la membrane (20), présente par rapport à une extension maximum de la zone élastique (44) dans sa direction, un rapport de 0,001 à 0,5.
  5. Membrane (20) selon l'une des revendications précédentes,
    dans laquelle, dans une zone de bordure (28) de la membrane (20) est réalisée une portion de fixation (24) via laquelle la membrane (20) est susceptible d'être agencée entre et/ou contre deux moitiés de récipient (62), et
    dans laquelle la zone de bordure (28) est ladite au moins une zone élastique (44).
  6. Membrane (20) selon la revendication 5,
    dans laquelle la portion de fixation (24) comprend au moins un élément de renforcement (80), de préférence une bague en matière plastique et/ou une bague en métal.
  7. Membrane (20) selon l'une des revendications précédentes,
    dans laquelle le premier matériau (40) présente une perméabilité plus faible qu'un second matériau (42), et
    dans laquelle la zone élastique (44) est formée du second matériau (42).
  8. Membrane (20) selon l'une des revendications précédentes,
    dans laquelle sans application de la différentielle de pression (Δp), le rapport d'une surface du premier matériau (40) sur une surface de la zone élastique (44) est dans une plage de 0,001 à 0,7.
  9. Membrane (20) selon l'une des revendications précédentes,
    dans laquelle une résistance et/ou une rigidité du premier matériau (40) transversalement au plan de membrane (E) est plus forte qu'une résistance et/ou une rigidité de la zone élastique (44) dans cette direction.
  10. Membrane (20) selon l'une des revendications précédentes,
    dans laquelle le premier matériau (40) et la zone élastique (44) sont reliés via au moins une zone de contact, et
    dans laquelle la zone de contact présente une perméabilité aux gaz et/ou aux fluides/liquides plus faible que la zone élastique (44).
  11. Membrane (20) selon l'une des revendications précédentes,
    dans laquelle la zone de contact s'étend sensiblement transversalement au plan de membrane (E).
  12. Membrane (20) selon l'une des revendications précédentes,
    dans laquelle une épaisseur du premier matériau (40) transversalement au plan de membrane (E) correspond sensiblement à une épaisseur de la zone élastique (44) transversalement au plan de membrane (E).
  13. Membrane (20) selon l'une des revendications précédentes,
    dans laquelle le premier matériau (40) est formé en ce que la zone élastique (44) est soumise au moins localement à une procédure chimique, un traitement à chaud et/ou traitée avec un revêtement.
  14. Agencement formant récipient, en particulier vase d'expansion sous pression, comprenant un récipient (60) et une membrane (20) en un premier matériau (40), dans lequel la membrane (20) comprend une zone de travail (22) qui est conçue pour un déplacement dans le récipient (60),
    dans lequel dans le récipient (60) une différentielle de pression (Δp) est susceptible d'être appliquée à membrane (20),
    dans lequel la zone de travail (22) est formée au moins partiellement d'un premier matériau (40) qui se comporte sensiblement rigidement sous la différentielle de pression (□p) et empêche une diffusion de matières ou de gaz et/ou de liquides, et
    dans lequel la zone de travail (22) comprend au moins une zone élastique (44) qui se comporte de manière élastique sous la différentielle de pression (Δp), en raison de quoi la zone de travail (22) est déplaçable à l'intérieur du récipient (60), de préférence sous la différentielle de pression (Δp),
    caractérisé en ce que
    la zone de travail (22) comprend le premier matériau (40) essentiellement dans une zone médiane (26) de la membrane (20), et
    dans laquelle la zone médiane (26) est exclusivement formée du premier matériau (40), ou
    dans laquelle la zone médiane (26) formée du premier matériau (40) est entourée au-dessus et/ou au-dessous au moins localement avec le matériau élastique, et
    dans laquelle le premier matériau (40) présente une perméabilité aux gaz et/ou aux fluides/liquides plus faible que la zone élastique.
EP13185662.7A 2012-10-25 2013-09-24 Membrane et agencement de récipient Not-in-force EP2725237B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102012219530.0A DE102012219530A1 (de) 2012-10-25 2012-10-25 Membran und Behälteranordnung

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EP2725237A1 EP2725237A1 (fr) 2014-04-30
EP2725237B1 true EP2725237B1 (fr) 2016-04-13

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DE (1) DE102012219530A1 (fr)
ES (1) ES2575177T3 (fr)
PL (1) PL2725237T3 (fr)

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
TR201906130A2 (tr) * 2019-04-25 2019-05-21 Oenaysan Enduestriyel Ueruenler Ueretim Ve Dis Ticaret Anonim Sirketi Genleşme tanki yapilanmasi

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2345475A (en) * 1942-03-11 1944-03-28 Vickers Inc Accumulator
DE1961140A1 (de) * 1969-12-05 1971-06-16 Daimler Benz Ag Rollmembran
FR2210725B1 (fr) * 1972-12-15 1976-08-27 Leduc Gerard
US3948288A (en) * 1974-12-13 1976-04-06 Gardner-Denver Company Hydraulic accumulator
DE2843364A1 (de) * 1978-10-05 1980-04-24 Krupp Gmbh Druckspeicher
US4181156A (en) * 1978-12-04 1980-01-01 Greer Hydraulics, Inc. Pressure accumulator with anti-extrusion gas charging valve assembly
DE3807313A1 (de) * 1988-03-05 1989-04-20 Daimler Benz Ag Hochdruckspeicher fuer hydraulische systeme
US5449003A (en) * 1992-12-28 1995-09-12 Sugimura; Kazuo Undulated container for undulated diaphragm and diaphragm device
DE10038982A1 (de) * 1999-08-16 2001-03-01 Luk Lamellen & Kupplungsbau Flüssigkeitsbehälter
DE10215846A1 (de) * 2002-04-10 2003-11-06 Hydac Technology Gmbh Hydrospeicher, insbesondere Membranspeicher
EP1876395A1 (fr) * 2006-07-08 2008-01-09 Winkelmann Sp. z o.o. Vase d'expansion avec membrane

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EP2725237A1 (fr) 2014-04-30
DE102012219530A1 (de) 2014-04-30
ES2575177T3 (es) 2016-06-27
PL2725237T3 (pl) 2016-12-30

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