ES2521500T5 - Pressurized membrane expansion vessel - Google Patents
Pressurized membrane expansion vessel Download PDFInfo
- Publication number
- ES2521500T5 ES2521500T5 ES09003715.1T ES09003715T ES2521500T5 ES 2521500 T5 ES2521500 T5 ES 2521500T5 ES 09003715 T ES09003715 T ES 09003715T ES 2521500 T5 ES2521500 T5 ES 2521500T5
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- membrane
- vessel
- outer edge
- layer
- expansion vessel
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- 239000012528 membrane Substances 0.000 title claims description 89
- 238000007789 sealing Methods 0.000 claims description 25
- 239000004033 plastic Substances 0.000 claims description 20
- 229920003023 plastic Polymers 0.000 claims description 20
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 16
- 239000000463 material Substances 0.000 claims description 11
- 230000002093 peripheral effect Effects 0.000 claims description 9
- 239000000203 mixture Substances 0.000 claims description 6
- 239000011521 glass Substances 0.000 claims description 2
- 239000012530 fluid Substances 0.000 claims 1
- 239000007789 gas Substances 0.000 description 29
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 12
- 229910052757 nitrogen Inorganic materials 0.000 description 6
- QQONPFPTGQHPMA-UHFFFAOYSA-N propylene Natural products CC=C QQONPFPTGQHPMA-UHFFFAOYSA-N 0.000 description 4
- 238000009792 diffusion process Methods 0.000 description 3
- 239000013013 elastic material Substances 0.000 description 3
- 239000006260 foam Substances 0.000 description 3
- 239000000243 solution Substances 0.000 description 3
- 239000004698 Polyethylene Substances 0.000 description 2
- 239000000853 adhesive Substances 0.000 description 2
- 239000002775 capsule Substances 0.000 description 2
- 239000011248 coating agent Substances 0.000 description 2
- 238000000576 coating method Methods 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 238000002347 injection Methods 0.000 description 2
- 239000007924 injection Substances 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 229920000573 polyethylene Polymers 0.000 description 2
- 229920002635 polyurethane Polymers 0.000 description 2
- 239000004814 polyurethane Substances 0.000 description 2
- 125000004805 propylene group Chemical group [H]C([H])([H])C([H])([*:1])C([H])([H])[*:2] 0.000 description 2
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 1
- 239000006096 absorbing agent Substances 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 229920005601 base polymer Polymers 0.000 description 1
- 229920001577 copolymer Polymers 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 229920001971 elastomer Polymers 0.000 description 1
- 239000013536 elastomeric material Substances 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 210000000056 organ Anatomy 0.000 description 1
- 210000000578 peripheral nerve Anatomy 0.000 description 1
- -1 polyethylene Polymers 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 230000008719 thickening Effects 0.000 description 1
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
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)
- Buffer Packaging (AREA)
- Diaphragms And Bellows (AREA)
Description
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DESCRIPCIONDESCRIPTION
Vaso de expansion de membrana a presionPressurized membrane expansion vessel
La invencion se refiere a un vaso de expansion de membrana a presion para su conexion a una red de distribucion, con dos partes de vaso que en una zona de union periferica estan unidas entre sf de forma estanca al fluido y a prueba de escape bajo presion, en el que el espacio interior cerrado del vaso formado por las dos partes de vaso esta dividido por una membrana plana o con forma de semicapsula en un espacio de agua y un espacio de gas, en el que el espacio de agua puede ser conectado a la red de distribucion mediante un racor de conexion.The invention relates to a pressurized membrane expansion vessel for connection to a distribution network, with two vessel parts that in a peripheral junction zone are connected to each other in a fluid-tight manner and leak-proof under pressure, in which the closed interior space of the vessel formed by the two parts of the vessel is divided by a flat or semi-encapsulated membrane in a water space and a gas space, in which the water space can be connected to the distribution network through a connection fitting.
Los vasos de expansion de este tipo con membranas se utilizan en circuitos de lfquido cerrados para la absorcion de variaciones de volumen, por ejemplo por conexion y desconexion de bombas dependiendo de la presion, por amortiguadores antigolpes de ariete o tambien provocados por la temperatura, que se producen en sistemas de abastecimiento de agua o circuitos de calefaccion.Expansion vessels of this type with membranes are used in closed liquid circuits for the absorption of volume variations, for example by connection and disconnection of pumps depending on the pressure, by ram shock absorbers or also caused by temperature, which They are produced in water supply systems or heating circuits.
Esencialmente se distinguen dos tipos de vasos de expansion diferentes, concretamente vasos con dos partes de vaso y una membrana plana o con forma de semicapsula, y vasos con una membrana con forma de vejiga que esta insertada con su borde de abertura en el racor de conexion del agua del vaso de expansion y forma el espacio de agua. Alternativamente, la membrana tambien puede formar el espacio de gas.Essentially, two different types of expansion vessels are distinguished, specifically vessels with two vessel parts and a flat or semi-encapsulated membrane, and vessels with a bladder-shaped membrane that is inserted with its opening edge in the connection fitting of water from the expansion vessel and forms the water space. Alternatively, the membrane can also form the gas space.
En los vasos de expansion con membrana plana o con forma de semicapsula se tienen diferentes formas de vaso, distinguiendose principalmente entre vasos planos que son empleados por ejemplo en calentadores montados en la pared y vasos cilmdricos o esfericos. Estos dos tipos de vaso tienen en comun que el espacio interior del vaso esta dividido por una membrana plana o en forma de semicapsula de un material elastico en un espacio de agua y un espacio de gas, pudiendo servir la membrana al mismo tiempo como elemento de obturacion entre las dos partes de vaso. Tal solucion se muestra por ejemplo en el documento DE 28 14 162 B2. En estos vasos de expansion que han funcionado desde hace tiempo es esencialmente desfavorable sobre todo que si las membranas son de un material elastomerico no se puede evitar un cierto efecto de permeacion, especialmente a traves de un largo penodo de tiempo, de manera que gas del espacio de gas puede penetrar en el espacio de agua y, por tanto, en la red de distribucion, lo que es particularmente indeseable en los circuitos de calefaccion. Con ello se reduce tambien el volumen de gas en el espacio de gas, lo que hace necesario un mantenimiento ya que es precisa una recarga. Esto conlleva un gasto correspondiente.In the expansion vessels with flat membrane or with a semi-capsule shape there are different vessel shapes, distinguishing mainly between flat vessels that are used for example in wall mounted heaters and cylindrical or spherical vessels. These two types of vessel have in common that the interior space of the vessel is divided by a flat or semi-encapsulated membrane of an elastic material in a water space and a gas space, the membrane being able to serve at the same time as an element of sealing between the two parts of the glass. Such a solution is shown for example in document DE 28 14 162 B2. In these expansion vessels that have been operating for a long time, it is essentially unfavorable, above all, that if the membranes are made of an elastomeric material, a certain permeation effect cannot be avoided, especially over a long period of time, so that gas from the Gas space can penetrate the water space and, therefore, in the distribution network, which is particularly undesirable in the heating circuits. This also reduces the volume of gas in the gas space, which makes maintenance necessary as a refill is required. This entails a corresponding expense.
Por el documento DE 35 44 754 A1 es conocido un vaso de expansion en el que el material de la membrana y el gas en la camara encerrada por la membrana son elegidos de forma coordinada entre sf para que el coeficiente de difusion del gas con respecto al material de la membrana sea lo mas pequeno posible. En contraste con la utilizacion de nitrogeno para tales vasos de expansion que en particular en cuanto al comportamiento inerte del nitrogeno era negativo para la membrana y no tema en cuenta en absoluto el comportamiento de difusion del nitrogeno con respecto a la membrana, en esta solucion el comportamiento de difusion del gas con respecto a la membrana esta en primer plano, es decir se elige una combinacion de gas y material de membrana especial. Esta solucion sin embargo no ha prevalecido en la practica ya que como gas sigue empleandose en gran medida nitrogeno.From document DE 35 44 754 A1 an expansion vessel is known in which the membrane material and the gas in the chamber enclosed by the membrane are chosen in a coordinated manner between each other so that the diffusion coefficient of the gas with respect to the membrane material be as small as possible. In contrast to the use of nitrogen for such expansion vessels that in particular as regards the inert behavior of the nitrogen was negative for the membrane and did not take into account at all the diffusion behavior of the nitrogen with respect to the membrane, in this solution the The diffusion behavior of the gas with respect to the membrane is in the foreground, that is, a combination of gas and special membrane material is chosen. This solution, however, has not prevailed in practice since nitrogen continues to be used as a gas.
Por el documento US-A-4315527 es conocido un vaso de expansion para ser conectado a una red de distribucion, con dos partes de vaso que estan unidas entre sf en una zona de union periferica de forma estanca al fluido y a prueba de escape a presion, en el que el espacio interior del vaso cerrado formado por las dos partes de vaso esta dividido por una membrana plana o con forma de semicapsula en un espacio de agua y un espacio de gas, en el que el espacio de agua puede ser conectado a la red de distribucion mediante un racor de conexion. La membrana esta hecha de un material elastico, preferentemente caucho, y para la obturacion de las dos partes de vaso presenta un borde exterior configurado de forma especial, realizado integral con la membrana, concretamente una zona periferica engrosada con forma de columna con elementos de tipo brida adyacentes, que en la posicion de montaje recubren por el exterior los dos bordes perifericos de las partes de vaso. Por el documento DE-A-2102969 es conocido un recipiente con membrana como organo de separacion o descarga para medios en forma gaseosa, lfquidos y solidos, en el que un anillo de sujecion, que es necesario para la fijacion de la membrana, esta realizado como parte de la pared del recipiente. Asimismo, el anillo de sujecion presenta nervios perifericos para la fijacion de la membrana.From US-A-4315527 an expansion vessel is known to be connected to a distribution network, with two vessel parts that are joined to each other in a peripheral junction zone in a fluid-tight and leak-proof manner , in which the interior space of the closed vessel formed by the two parts of the vessel is divided by a flat or semi-shaped membrane in a water space and a gas space, in which the water space can be connected to the distribution network through a connection fitting. The membrane is made of an elastic material, preferably rubber, and for the sealing of the two vessel parts it has a specially shaped outer edge, made integral with the membrane, specifically a thickened peripheral area in the form of a column with type elements adjacent flange, which in the mounting position cover the two peripheral edges of the vessel parts on the outside. From DE-A-2102969 a membrane container is known as a separation or discharge organ for gaseous, liquid and solid media, in which a clamping ring, which is necessary for membrane fixation, is made as part of the vessel wall. Also, the clamping ring has peripheral nerves for membrane fixation.
El objeto de la invencion es perfeccionar un vaso de expansion de membrana a presion, de tal forma que se evite con seguridad una permeacion del gas desde el espacio de gas al espacio de agua, sin que por ello se aumente significativamente el gasto de fabricacion y montaje.The object of the invention is to improve a pressurized membrane expansion vessel, so that a permeation of the gas from the gas space to the water space is safely avoided, without thereby significantly increasing the manufacturing expense and mounting.
Este objeto se consigue con un vaso de expansion de membrana a presion segun la reivindicacion 1.This object is achieved with a pressurized membrane expansion vessel according to claim 1.
Por tanto, se proporciona un vaso de expansion a presion de membrana, cuya membrana de plastico de al menos una capa es impermeable al gas, con lo que se evita la permeacion de gas, en particular de aire o nitrogeno. Como material plastico puede emplearse por ejemplo como base un copolfmero de etileno-alcohol vimlico (EVOH).Therefore, a membrane pressure expansion vessel is provided, whose plastic membrane of at least one layer is impermeable to gas, thereby preventing gas permeation, in particular of air or nitrogen. As a plastic material, for example, a copolymer of ethylene-vimic alcohol (EVOH) can be used as a base.
Para al mismo tiempo garantizar la funcion de obturacion de la membrana entre las dos partes del vaso sin costes de montaje adicionales, segun la invencion el borde exterior de la membrana esta unido a un elemento deTo at the same time guarantee the membrane sealing function between the two parts of the vessel without additional assembly costs, according to the invention the outer edge of the membrane is attached to an element of
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obturacion. Este elemento de obturacion periferico esta aplicado de forma adecuada al borde exterior de la membrana.obturation. This peripheral sealing element is properly applied to the outer edge of the membrane.
Asimismo, esta previsto que el elemento de obturacion este realizado en forma de C y recubra al borde exterior de la membrana por arriba y por debajo. Tal elemento de obturacion con forma de C puede, por ejemplo, ser unido al borde exterior de la membrana mediante recubrimiento por inyeccion.Likewise, it is envisaged that the sealing element is made in a C-shape and covers the outer edge of the membrane from above and below. Such a C-shaped sealing element can, for example, be attached to the outer edge of the membrane by injection coating.
En una realizacion particularmente preferida esta previsto que el elemento de obturacion consista en una espuma de obturacion aplicada al borde exterior de la membrana. Tal espuma de obturacion, por ejemplo de una base de poliuretano 2K, se puede aplicar al borde exterior de la membrana de forma particularmente facil en cuanto a la fabricacion. El elemento de obturacion sigue por tanto al contorno del borde exterior de la membrana que depende de la respectiva forma del vaso (por ejemplo, redonda, poligonal, poligonal con bordes redondeados).In a particularly preferred embodiment, it is provided that the sealing element consists of a sealing foam applied to the outer edge of the membrane. Such sealing foam, for example of a 2K polyurethane base, can be applied to the outer edge of the membrane particularly easily in terms of manufacturing. The sealing element therefore follows the contour of the outer edge of the membrane that depends on the respective shape of the vessel (for example, round, polygonal, polygonal with rounded edges).
La union a prueba de escape bajo presion y estanca al fluido de las dos partes del vaso esta garantizada preferiblemente de forma conocida en sf, de modo que las dos partes del vaso estan unidas entre sf con union positiva de forma en la zona de union por fijacion del borde exterior de la membrana. Un ejemplo de tal union positiva de forma esta representado en la figura 1 del documento DE 28 14 162 B2.The leak-proof connection under pressure and fluid-tight of the two parts of the vessel is preferably guaranteed in a known manner in sf, so that the two parts of the vessel are joined to each other with a positive joint in the area of union by fixation of the outer edge of the membrane. An example of such a positive union is represented in figure 1 of document DE 28 14 162 B2.
La membrana propiamente dicha esta formada preferiblemente de una mezcla de plasticos de acuerdo con una primera realizacion preferida. Tal mezcla de plasticos, en particular una mezcla de polfmeros, es una combinacion de plasticos molecularmente distribuida o dispersa microscopicamente, esto es, una mezcla de al menos dos plasticos de base o polfmeros de base. Un material de base presenta entonces preferiblemente las propiedades elasticas necesarias, lo que permite la deformacion de la membrana durante las variaciones de presion, y el otro, las propiedades de barrera de gas.The membrane itself is preferably formed from a mixture of plastics according to a first preferred embodiment. Such a mixture of plastics, in particular a mixture of polymers, is a combination of molecularly distributed or microscopically dispersed plastics, that is, a mixture of at least two base plastics or base polymers. A base material then preferably has the necessary elastic properties, which allows the deformation of the membrane during pressure variations, and the other, the gas barrier properties.
Adicional o alternativamente en otra realizacion preferida esta previsto que la membrana este formada por un material compuesto de al menos dos capas, con una primera capa de un plastico elastico y una segunda capa de un plastico elastico impermeable al gas unida a la primera capa. En esta forma de realizacion, una capa sirve como capa de soporte, sobre la que es aplicada la segunda capa, por ejemplo por coextrusion.Additionally or alternatively in another preferred embodiment, it is provided that the membrane is formed of a material composed of at least two layers, with a first layer of an elastic plastic and a second layer of a gas-impermeable elastic plastic bonded to the first layer. In this embodiment, a layer serves as a support layer, on which the second layer is applied, for example by coextrusion.
En otra realizacion ventajosa esta previsto que la membrana presente una estructura de al menos tres capas, en la que la tercera capa este hecha de un plastico elastico. La segunda capa de un plastico elastico impermeable al gas esta entonces incrustada por ambos lados.In another advantageous embodiment it is provided that the membrane has a structure of at least three layers, in which the third layer is made of an elastic plastic. The second layer of a gas impermeable plastic is then embedded on both sides.
Entre las capas pueden estar previstos agentes adhesivos.Adhesive agents may be provided between the layers.
Formas de realizacion de la invencion se explican en detalle a modo de ejemplo a continuacion con referencia al dibujo. Este muestra en:Forms of realization of the invention are explained in detail by way of example below with reference to the drawing. This shows in:
Fig. 1, un corte a traves de un vaso de expansion de membrana a presion,Fig. 1, a section through a pressurized membrane expansion vessel,
Fig. 2, en una representacion a escala ampliada, un corte transversal de la estructura de la membrana segun unaFig. 2, in an enlarged representation, a cross-section of the membrane structure according to a
forma de realizacion no segun la invencion,embodiment not according to the invention,
Fig. 3, una vista en planta desde arriba parcial de la membrana segun la Fig. 2,Fig. 3, a partial top plan view of the membrane according to Fig. 2,
Fig. 4, en una representacion a escala ampliada, un corte transversal de la estructura de la membrana deFig. 4, in an enlarged representation, a cross-section of the membrane structure of
acuerdo con una forma de realizacion segun la invencion, y enaccording to an embodiment according to the invention, and in
Fig. 5, una vista en planta desde arriba parcial de la membrana segun la Fig. 4.Fig. 5, a partial top plan view of the membrane according to Fig. 4.
Un vaso de expansion de membrana a presion se designa en general con 1 en la Fig. 1. Este vaso de expansion de membrana a presion 1 esta realizado como vaso plano en el ejemplo de realizacion y es adecuado, por ejemplo, para su insercion en un calentador montado en la pared. Pero tambien puede presentar otra configuracion geometrica cuando se utiliza por ejemplo en conexion con una caldera.A pressurized membrane expansion vessel is generally designated 1 in Fig. 1. This pressurized membrane expansion vessel 1 is made as a flat vessel in the embodiment example and is suitable, for example, for insertion into A wall mounted heater. But it can also have another geometric configuration when used for example in connection with a boiler.
El vaso de expansion de membrana a presion 1 presenta dos partes de vaso 2, 3 de metal con forma de semicapsula. Las dos partes de vaso 2, 3 pueden tener esencialmente cualquier forma geometrica discrecional, por ejemplo incluso ovalada o poligonal. Las partes de vaso 2, 3 estan unidas entre sf a prueba de escape bajo presion y de forma estanca al fluido en una zona de union periferica designada en general con 4, lo que se explica con mas detalle a continuacion.The pressurized membrane expansion vessel 1 has two parts of metal vessel 2, 3 with a semi-capsule shape. The two vessel parts 2, 3 can have essentially any discretionary geometric shape, for example even oval or polygonal. The vessel parts 2, 3 are connected to each other under leakage proof under pressure and in a fluid-tight manner in an area of peripheral junction generally designated 4, which is explained in more detail below.
En la parte de vaso 2 esta previsto un racor de conexion 5 para la conexion del vaso de expansion de membrana a presion 1 a una red de distribucion no representada. El espacio interior del vaso de expansion de membrana a presion 1 esta dividido por una membrana 6 en un espacio de agua 7, que esta unido al racor de conexion 5, y un espacio de gas 8; este espacio de gas 8 esta lleno con un gas sometido a una sobrepresion predeterminada, por ejemplo aire o nitrogeno. Para ello esta previsto un orificio de llenado de gas que esta cerrado por ejemplo por medio de un tapon simple o una valvula de llenado de gas 9.In the vessel part 2, a connection fitting 5 is provided for the connection of the pressurized membrane expansion vessel 1 to a distribution network not shown. The interior space of the pressurized membrane expansion vessel 1 is divided by a membrane 6 in a water space 7, which is connected to the connection fitting 5, and a gas space 8; This gas space 8 is filled with a gas subjected to a predetermined overpressure, for example air or nitrogen. For this purpose, a gas filling hole is provided which is closed, for example, by means of a simple plug or a gas filling valve 9.
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Cuando aumenta el volumen de agua en la red de distribucion, el agua entra a traves del racor de conexion 5 al espacio de agua 7, es decir al interior del vaso 1, por lo que la membrana 6 es comprimida contra el colchon de gas.When the volume of water in the distribution network increases, the water enters through the connection fitting 5 to the water space 7, that is to say inside the vessel 1, whereby the membrane 6 is compressed against the gas mattress.
Es esencial para el vaso de expansion de membrana a presion 1 la configuracion de la membrana 6. Esta tiene preferentemente un contorno que se adapta tanto como sea posible al contorno en forma de semicapsula de la parte de vaso 2.The configuration of the membrane 6 is essential for the pressurized membrane expansion vessel 1. This preferably has a contour that adapts as much as possible to the semi-encapsulated contour of the vessel portion 2.
La membrana 6 esta hecha de un plastico impermeable al gas de al menos una capa, por ejemplo de una mezcla de plasticos, es decir una combinacion de plasticos de al menos dos componentes, en la que uno de los componentes presenta propiedades elasticas y el otro presenta propiedades de impermeabilidad al gas. El componente impermeable al gas puede ser, por ejemplo EVOH, y por supuesto es tambien tan elastico que la membrana 6 puede cambiar su forma en caso de variaciones de presion, y puede comprimir el espacio de gas 8. Ademas, la membrana 6 puede estar dotada de perfilados adicionales, acanaladuras o similares, lo que no esta representado en detalle.The membrane 6 is made of a gas impermeable plastic of at least one layer, for example of a mixture of plastics, that is to say a combination of plastics of at least two components, in which one of the components has elastic properties and the other It has gas impermeability properties. The gas impermeable component can be, for example EVOH, and of course it is also so elastic that the membrane 6 can change its shape in case of pressure variations, and can compress the gas space 8. In addition, the membrane 6 can be equipped with additional profiles, grooves or the like, which is not represented in detail.
En la forma de realizacion de la membrana 6 no segun la invencion representada en la Fig. 2, esta esta formada por un material compuesto de al menos dos capas, en la Fig. 2 esta representada una estructura de tres capas. Esta membrana 6 esta formada por una primera capa 6a de un plastico elastico, por ejemplo propileno, una segunda capa 6b de un plastico elastico impermeable al gas, por ejemplo EVOH, y una tercera capa 6c, de nuevo hecha de un material elastico, por ejemplo, propileno (PP) o polietileno (PE). Entre las dos capas puede estar previsto, respectivamente, un agente adhesivo. Tal membrana 6 de multiples capas puede ser fabricada por ejemplo por coextrusion.In the embodiment of the membrane 6 not according to the invention represented in Fig. 2, it is formed by a material composed of at least two layers, in Fig. 2 a three layer structure is represented. This membrane 6 is formed by a first layer 6a 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 made of an elastic material, by example, propylene (PP) or polyethylene (PE). An adhesive agent can be provided between the two layers, respectively. Such a multilayer membrane 6 can be manufactured, for example, by coextrusion.
El borde exterior 10 de la membrana 6 esta preferentemente unido por arriba y por debajo, respectivamente, a un elemento de obturacion 11. Este elemento de obturacion 11 es preferiblemente una espuma de obturacion, por ejemplo basada en poliuretano 2K, aplicada al borde exterior de la membrana 6.The outer edge 10 of the membrane 6 is preferably connected from above and below, respectively, to a sealing element 11. This sealing element 11 is preferably a sealing foam, for example based on 2K polyurethane, applied to the outer edge of the membrane 6.
Durante el montaje del vaso de expansion de membrana a presion 1, la membrana 6 es insertada con su borde exterior 10 provisto de los elementos de obturacion 11 en la zona de union 4 entre las dos partes de vaso 2, 3, y luego las mitades de vaso 2, 3 son fijadas entre sf en la zona de union 4, preferentemente con union positiva de forma, por ejemplo por medio de un anillo de sujecion periferico 12.During assembly of the pressurized membrane expansion vessel 1, the membrane 6 is inserted with its outer edge 10 provided with the sealing elements 11 in the junction zone 4 between the two vessel parts 2, 3, and then the halves of vessel 2, 3 are fixed to each other in the area of union 4, preferably with positive shape connection, for example by means of a peripheral clamping ring 12.
Entonces, la membrana 6 sirve ademas de para su funcion de membrana propiamente dicha al mismo tiempo como elemento de obturacion en la zona de union 4. La funcion de obturacion esta garantizada con seguridad por el elemento de obturacion periferico 11 en el borde exterior 10 de la membrana 6, incluso aunque el propio material de la membrana 6 no sea adecuado como medio de obturacion.Then, the membrane 6 serves in addition to its membrane function proper at the same time as a sealing element in the junction zone 4. The sealing function is safely guaranteed by the peripheral sealing element 11 at the outer edge 10 of the membrane 6, even though the membrane material 6 itself is not suitable as a sealing means.
En las figuras 4 y 5 esta representada una forma de realizacion de la membrana 6 segun la invencion, en la que se han empleado los mismos sfmbolos de referencia que en las figuras anteriores para referirse a las mismas partes.An embodiment of the membrane 6 according to the invention is represented in Figures 4 and 5, in which the same reference symbols as in the previous figures have been used to refer to the same parts.
A diferencia de la forma de realizacion segun las figuras 2 y 3 esta previsto un unico elemento de obturacion 11' con forma de C en seccion transversal, que recubre por arriba y por debajo al borde exterior 10 de la membrana 6 y cierra radialmente por fuera al borde exterior 10. Tal miembro de obturacion 11' de una sola pieza puede por ejemplo ser unido a la membrana 6 por recubrimiento de inyeccion de la membrana 6.In contrast to the embodiment according to Figures 2 and 3, a single C-shaped sealing element 11 'is provided in cross section, which covers above and below the outer edge 10 of the membrane 6 and closes radially on the outside. to the outer edge 10. Such a sealing member 11 'in one piece may, for example, be attached to the membrane 6 by membrane injection coating 6.
Naturalmente, la invencion no esta limitada a los ejemplos de realizacion representados. Son posibles otras realizaciones de la invencion como se describen en las reivindicaciones. Asf, las dos partes de vaso 2, 3 tambien pueden tener otra forma geometrica como se menciono anteriormente. La membrana 6 en sf puede tambien tener una estructura de solo una o dos capas. Cuando la membrana 6, como esta representado en los ejemplos de realizacion, tiene una estructura de tres capas, con una seleccion correspondiente de material, el elemento de obturacion puede estar formado tambien por la capa elastica 6a o 6c por engrosamiento de material correspondiente. Sin embargo, tal ejemplo de realizacion no entra dentro del alcance de proteccion de las reivindicaciones.Naturally, the invention is not limited to the embodiments shown. Other embodiments of the invention are possible as described in the claims. Thus, the two parts of vessel 2, 3 can also have another geometric shape as mentioned above. The membrane 6 in sf can also have a structure of only one or two layers. When the membrane 6, as shown in the exemplary embodiments, has a three-layer structure, with a corresponding selection of material, the sealing element may also be formed by the elastic layer 6a or 6c by thickening of corresponding material. However, such an embodiment does not fall within the scope of protection of the claims.
Claims (5)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| EP09003715.1A EP2233844B2 (en) | 2009-03-14 | 2009-03-14 | Membrane pressure expansion container |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| ES2521500T3 ES2521500T3 (en) | 2014-11-12 |
| ES2521500T5 true ES2521500T5 (en) | 2017-07-04 |
Family
ID=40933588
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| ES09003715.1T Active ES2521500T5 (en) | 2009-03-14 | 2009-03-14 | Pressurized membrane expansion vessel |
Country Status (6)
| Country | Link |
|---|---|
| EP (1) | EP2233844B2 (en) |
| DK (1) | DK2233844T4 (en) |
| ES (1) | ES2521500T5 (en) |
| PL (1) | PL2233844T5 (en) |
| PT (1) | PT2233844E (en) |
| SI (2) | SI2233844T2 (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| ITPD20100166A1 (en) * | 2010-05-26 | 2011-11-27 | Zilmet S P A | MEMBRANE FOR EXPANSION VESSELS |
| JP6802355B2 (en) * | 2016-04-05 | 2020-12-16 | スマート グローバル ビー．エナジー リミテッド | Water heating system with smart boiler and how |
| TR201906130A2 (en) * | 2019-04-25 | 2019-05-21 | Oenaysan Enduestriyel Ueruenler Ueretim Ve Dis Ticaret Anonim Sirketi | CONSTRUCTION OF EXPANSION TANK |
Family Cites Families (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2371632A (en) * | 1943-01-01 | 1945-03-20 | Ideal Roller & Mfg Company | Accumulator |
| DE1600621A1 (en) † | 1967-01-26 | 1970-01-08 | Teves Gmbh Alfred | Hydropneumatic pressure accumulator with a two-part pressure-resistant housing |
| FR2036025A5 (en) † | 1969-03-03 | 1970-12-24 | Olaer Patent Co | |
| DE2102969C3 (en) † | 1971-01-22 | 1978-06-15 | 2800 Bremen | Container with membrane |
| FR2412789A1 (en) | 1977-12-23 | 1979-07-20 | Viatour Sa | Heating system water circuit expansion vessel - has thick middle part of membrane clamped by central support and spacer |
| US4315527A (en) | 1980-01-14 | 1982-02-16 | Tmi Sales Corporation | Expansion tanks for pressurized fluids and diaphragms therefor |
| DE3544754A1 (en) | 1985-12-18 | 1987-06-19 | Viessmann Werke Kg | Heat-expansion compensating apparatus |
| FR2636638B1 (en) † | 1988-09-20 | 1990-12-21 | Peugeot | WATERPROOF ELASTIC MEMBRANE AND HYDROPNEUMATIC ACCUMULATOR EQUIPPED WITH SUCH A MEMBRANE |
| FR2685740B1 (en) † | 1991-12-27 | 1994-08-12 | Tokai Rubber Ind Ltd | FLEXIBLE SEPARATION ELEMENT FOR A HYDRAULIC ACCUMULATOR COMPRISING A GAS STOPPER LAYER IN VINYL ETHYLENE-ALCOHOL COPOLYMER AND AN ELASTIC LAYER IN POLYAMIDE RESIN. |
| DE29511961U1 (en) * | 1995-07-25 | 1995-09-28 | Lin, Ching-Hsiung, Pingtung | Pressurized water boiler |
| CA2175537A1 (en) † | 1996-02-15 | 1997-08-16 | George M. Celorier, Jr. | Corrosion resistant expansion tank |
| FR2759743B1 (en) † | 1997-02-17 | 1999-04-02 | Peugeot | GAS WATERPROOF 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 |
| DE10116235A1 (en) † | 2001-03-31 | 2002-10-17 | Hydac Technology Gmbh | Hydropneumatic pressure accumulator |
| DE20310826U1 (en) † | 2003-07-14 | 2003-09-18 | Flamco Bv | Separating membrane for an expansion vessel with gas and liquid spaces is made of a plastic material |
| EP1876395A1 (en) * | 2006-07-08 | 2008-01-09 | Winkelmann Sp. z o.o. | Expansion vessel with membrane |
-
2009
- 2009-03-14 EP EP09003715.1A patent/EP2233844B2/en active Active
- 2009-03-14 SI SI200931048A patent/SI2233844T2/en unknown
- 2009-03-14 SI SI200931048T patent/SI2233844T1/en unknown
- 2009-03-14 PT PT90037151T patent/PT2233844E/en unknown
- 2009-03-14 PL PL09003715T patent/PL2233844T5/en unknown
- 2009-03-14 ES ES09003715.1T patent/ES2521500T5/en active Active
- 2009-03-14 DK DK09003715.1T patent/DK2233844T4/en active
Also Published As
| Publication number | Publication date |
|---|---|
| PL2233844T3 (en) | 2015-01-30 |
| ES2521500T3 (en) | 2014-11-12 |
| SI2233844T2 (en) | 2017-05-31 |
| SI2233844T1 (en) | 2014-12-31 |
| EP2233844A1 (en) | 2010-09-29 |
| PT2233844E (en) | 2014-11-03 |
| PL2233844T5 (en) | 2017-10-31 |
| DK2233844T4 (en) | 2017-04-24 |
| DK2233844T3 (en) | 2014-11-03 |
| EP2233844B2 (en) | 2017-03-01 |
| EP2233844B1 (en) | 2014-09-17 |
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