DE202011107072U1 - Heat or energy storage with a connection system - Google Patents

Abstract

Heat or energy storage device with a storage container (2) and with a connection system (3) for a line comprising a connecting piece (30) penetrating the wall (20) of the storage container (2) with a connecting area (1) adjacent to an outside of the wall (20). 300) and a contact piece (31) which can be sealingly connected to the connecting piece (30) in the connection area.

Description

The invention relates to a heat or energy storage with a storage container and with a connection system for a line. The invention further relates to a connection system for a heat or energy storage.

Heat or energy storage can be used for example in alternative heating systems. For the purposes of the invention, alternative heating systems or alternative heating systems are systems such as a solar system, a pellet boiler, a firewood installation, a combined heat and power plant (CHP), a heat pump installation or the like. Such alternative heating systems generate thermal energy, for the most part, independently of a current need. Energy storage devices are therefore necessary for storing thermal energy, which are also referred to as heat storage, to store the generated thermal energy, and to provide the stored energy at a later time when it is needed.

It is known to store heat by a suitable energy source, in particular by water, in a so-called stratified storage. A stratified storage tank with a storage tank for storing thermal energy is among others DE 20 2006 019 671 U1 known. In the memory, an energy source, usually service water or heating water is arranged.

Various connection elements, for example for an inlet and / or outlet of the energy source, for an inlet and / or outlet of a drinking water heating system integrated in the storage container and / or for the connection of a heat source, are provided on the storage container.

The storage container is usually wrapped with insulation. Known connection elements penetrate the wall of the storage container and the insulation, wherein a connection region for lines outside the insulation is arranged. About the guided through the insulation connection elements can cause heat losses. It is therefore known to individually configure the number and arrangement of the connection elements of the storage container for a specific application, so that redundant connection elements are avoided. However, the installation comprising a suitable configuration is very expensive.

It is an object of the present invention to provide a heat or energy storage with a connection system, which allows a quick installation and avoids heat loss.

This object is achieved by a heat or energy storage device having a storage container and having a connection system comprising a connecting piece penetrating the wall of the storage container with a connection region adjacent to an outer side of the wall and a contact piece sealingly connectable to the connection piece in the connection region.

About the connection system acting as a connection, a line, for example, for an external heat source and / or an inlet or outlet of the energy carrier, connected. A connection takes place at the contact piece. The connection piece ends directly on the wall of the storage container, so that the connection piece is arranged with a lamination of the wall of the storage container with an insulation under or inside the insulation. The complementary to the connection piece designed contact piece for a line can be connected to the connection piece, wherein the contact piece can be passed through the insulation. By contrast, when the connection is not in use, the connecting piece can be closed by a cap or the like and covered by the insulation to prevent heat losses. This makes it possible to provide a plurality of connecting pieces to the memory without heat loss, which can be used depending on the application as needed by attaching an associated contact piece as a connection. Individual sources of heat for energy supply are easy to connect to the memory at a first installation, but also after a first installation.

In an advantageous embodiment, it is provided that the connection region of the connecting piece and a complementary contact region of the contact piece are designed for a flat-sealing connection. As flat sealing a connection or coupling of two components is referred to by means of frontally adjacent sealing surfaces, preferably between the sealing surfaces, a seal can be arranged. The sealing surfaces are preferably forced together by means of a union nut. Due to the flat-sealing design, a protruding from the storage container length of the connecting piece is minimized.

In an advantageous embodiment, at least two vertically spaced connection pieces are provided. in the storage container, an energy carrier is usually layered in accordance with a temperature. By connecting pieces at different heights, it is possible to supply or discharge an energy source and / or to connect to a heat source or to a consumer in a suitable temperature range.

The spigots are preferably arranged in a width-limited portion of the storage container, so that access from only one mounting direction for installation is possible. A lateral surface of the storage container is usually laminated with a circumferential insulation, which is placed around the lateral surface and closed by connecting the ends. By arranging a plurality of connecting pieces in a section whose width is limited, with suitable orientation of the insulation, access by opening the insulation with a small opening width is possible.

In an advantageous development it is provided that the connecting pieces are arranged in a, preferably in the axial direction of the storage container extending row. For ease of manufacture and assembly, insulation placed around the storage container typically has abutting edges extending in the axial direction. By arranging the connecting stubs in a row extending in the axial direction or substantially in the axial direction, it is possible to align the insulation so that the abutting edges of the insulation coincide with the row of connecting stubs. As a result, a simple laying of the insulation around the storage container, even when connected to the connecting pieces contact pieces possible.

In one embodiment, it is provided that the connection region of the at least one connecting piece has an external thread. In a further embodiment, it is provided that the contact piece is designed as a piece of pipe with a circumferential collar for connection to the connecting piece. As a result, a simple coupling of the connecting piece and the contact piece by means of a union nut is possible. The pipe section is in advantageous embodiments of copper. The pipe section allows easy connection with known quick-mounting systems for lines and / or connection elements of heat sources and / or heating systems or other consumers, such as a drinking water system.

In a further embodiment, an insulation enveloping at least one lateral surface of the storage container is provided. The insulation comprises in advantageous embodiments a plurality of separately mountable sections, wherein at least one section can be laid as a jacket around the storage container. In addition, a cover element and / or a floor element is preferably provided, which effect a thermal insulation upwards and / or to a floor.

The insulation has, in advantageous embodiments, at least one hook strip for closing the insulation. In an advantageous embodiment, the hook strip comprises two strip parts, which are each coupled to one of two ends of the insulation to be joined or of one or more sections of the insulation. The strip parts are hooked or locked together to close the insulation. The compound is preferably without tools produced and solvable. The hook strip is preferably designed so that a repeated opening and closing of the hook strip is non-destructive possible. The insulation comprises in one embodiment a plurality of sections which are circumferentially adjacent to each other as a jacket placed around the storage container, wherein the sections are each connected via a hook strip. In advantageous embodiments, a one-piece insulation is placed as a jacket circumferentially around the storage container, wherein the abutting edges of the insulation are connected by means of a hook strip or a plurality of vertically spaced hook strips.

In an advantageous embodiment, the insulation is oriented so that the at least one hook strip is in the region of at least one connecting piece. As a result, a simple laying a circumferentially designed insulation is possible.

The insulation is made of a thermally insulating material and comprises at least one insulating layer surrounding the storage tank. As a material, for example, flexible foam can be used. In some embodiments, the insulation includes a plurality of dam layers sandwiching the reservoir. In advantageous embodiments, the insulation has at least one insulating layer formed by a polyester fiber fleece. A polyester fiber fleece allows good insulation values with a thinner compared to soft foam.

The object is further achieved by a connection system for a heat or energy storage.

Further advantages of the invention will become apparent from the subclaims and from the following description of an embodiment of the invention, which is shown schematically in the drawings. For identical or similar components, the same reference numbers are used in the drawings.

In the drawings show:

1 : a schematic perspective view of a heat or energy storage,

2 : a schematic side view of the heat or energy storage according to 1 .

3 a schematic sectional view III-III of the heat or energy storage according to 2 .

4 : a schematic representation of a connection system and

5 : A schematic perspective view of a connection area with a plurality of connecting pieces.

The 1 to 3 show schematically a heat or energy storage 1 , Also referred to as layer memory or short memory, in a perspective view, a side view and a sectional view.

How best in 3 is recognizable, the memory includes 1 a usually vertically oriented storage container 2 with one axial direction A. The memory 1 has several, in the illustrated embodiment twelve, as connection systems 3 designed connections 3a - 3l on.

The connection system 3 is below with reference to 4 discussed in detail. 4 schematically shows a part of a wall 20 of the storage container 2 according to 1 to 3 with a connection system 3 , The connection system 3 includes one the wall 20 of the storage container 2 penetrating connection piece 30 with an on an outside of the wall 20 adjacent connection area 300 , On the inside of the wall 20 protrude the connecting pieces 30 in an embodiment as shown from, wherein the connection piece in the storage container 2 laid lines can be connected. In other embodiments, the spigot on the inside is flush with the wall 20 and serves, for example, the supply of an energy source. The connecting piece 30 is in the illustrated embodiment with the wall 20 of the storage container 2 connected by a weld. The in use outside of the storage tank 2 arranged connection area 300 of the connecting piece 30 has an external thread.

The connecting piece 30 is flat sealing with a pipe section with a circumferential collar 310 designed contact piece 31 by means of an in 4 not shown union nut connectable. To the contact piece 31 are lines o. The like. Connected by not shown heat sources such as a solar system or for connection to a return or a flow of a heating system. Connecting lines is quick and easy, allowing a total of one installation of the memory 1 associated with significantly less effort than conventional storage without preinstalled spigot 30 ,

If a connection is unused, the associated connection piece is 30 closable. Closing takes place for example via an in 4 not shown cap. This makes it possible, without heat loss, a variety of connecting pieces 30 , as in 3 shown at the memory 1 provide, which can be used as needed by attaching an associated contact piece depending on the application.

As in 3 can be further seen, is the storage container shown 2 through insulation 4 laminated, which several cuts 40 . 41 . 42 . 43 . 44 includes. The illustrated insulation 4 two comprises a wall of the storage container 2 sheathing sections 40 . 41 , wherein one in the radial direction of the storage container 2 internally arranged section 40 designed in one embodiment as a polyester fiber fleece. In the illustrated embodiment is further a hook strip 5 for closing the cladding enveloping sections 40 . 41 the insulation 4 intended.

The connections 3a - 3l lie in a bin axis A extending row. Like from the 1 to 3 can be seen, in the illustrated embodiment, the lateral surface enveloping sections 40 . 41 the insulation 4 aligned so that the hook strip 5 in the area of the connections 3a - 3l lies. The hook strip 5 has two recesses for the contact pieces 31 the connections used in the illustrated embodiment 3a . 3l on. Unused connections 3b - 3k are how out 1 and 2 becomes clear, covers and thus protected. Due to the orientation of the insulation are the sections 40 . 41 in a simple way around the storage tank 2 deployable. An access to the ports 3a - 3l is by opening the hook strip 5 without removing the insulation 4 possible.

In the storage container 2 is an unrepresented source of energy stored. The energy source used is preferably water. With increasing heating in the storage tank 2 stored energy source sinks in the relevant temperature range of its weight. As a result, the energy carrier in different temperature layers in the storage container 2 be layered, the temperature of the in the storage tank 2 located energy carrier with the height of the storage container 2 increases. Each as a connection system 3 designed connections 3a - 3l allow a flexible installation of the memory 1 , Using individual, arranged at different heights connections 3a - 3l is a connection of different heat sources and / or consumers to the memory 1 possible without destroying the temperature stratification.

The illustrated memory 1 For example, it serves to heat drinking water. In order to maintain a hygiene of the drinking water even with a large storage volume, in the illustrated embodiment, the drinking water is not as an energy source of the memory 1 used. As an energy source, heating water can be used instead. In the in the 1 to 3 illustrated storage container 2 are two heat exchangers 60 . 61 , Also referred to as a heat exchanger, arranged. This is a first heat exchanger 60 designed as a drinking water heat exchanger. The heat exchanger 60 includes in the illustrated embodiment, a corrugated tube made of a high-alloy stainless steel, the elastic and stress-free through the storage container 2 is guided. For optimum use of energy, a winding is provided in several, radially spaced layers in the illustrated embodiment. A suitable winding is, for example, in the utility model DE 20 2009 011 313 U1 described. The content of this utility model is hereby fully incorporated by reference. By means of the heat exchanger 60 It is thus possible in the memory 1 stored heat in the high-performance continuous process to that through the heat exchanger 60 Pass on guided drinking water. The connection to an unillustrated drinking water system via via connection systems 3 designed connections 3a and 3l ,

In a lower area of the storage tank 2 is a second heat exchanger 61 arranged, which is usable as a solar heat exchanger for connection to a solar system. In the illustrated embodiment, the second heat exchanger 61 arranged at the bottom so as to pass through the heat exchanger 61 released heat the entire contents of the storage container 2 heat. This makes it possible to use the storage volume particularly efficient and to use solar energy even in a transitional period to heat the energy source. The second heat exchanger 61 has in the illustrated embodiment, a smooth tube with a low hydraulic resistance, so that a good heat transfer to the energy source can be realized. This makes it possible, even large solar panels to the memory 1 to join. If no solar system is available, as shown, the associated as connection systems 3 designed connections 3f and 3k free. In other words, the associated connecting pieces 30 according to 4 the connections 3f and 3k by means of a cap o. The like. Closed. Because the unused connecting pieces within the insulation 4 lie, a heat loss on unused connecting pieces 30 avoided. If later a solar system is to be integrated, is a connection of the solar system over the already pre-installed connecting pieces 3f and 3k just possible.

The storage tank 2 has further connection options, for example, for connection to a heating system, not shown. In a corresponding embodiment, a heating water is directly as an energy source of the memory 1 available. For connection to a heating system, it is possible to operate radiators of the heating system with heating water, which via one in the upper part of the storage tank 2 arranged connection 3b is removed. The heating water taken there has, for example, a temperature of about 60 ° and above. Heating water for underfloor heating of the heating system, however, for example, via a middle of the storage tank 2 arranged connection 3e removable, the heating water with a temperature of about 30 ° the storage tank 2 can be removed. In addition, it is conceivable, via one or more of the connections 3c . 3d . 3g - 3y to connect an additional heat source, not shown, through which a load of the storage container 2 is changeable.

In the area of connections 3c . 3d . 3g - 3y for a loading of the storage container 2 are in the illustrated embodiment Schichtladeeinrichtungen 7 intended. The stratification devices 7 ensure optimal temperature coating of heat or energy. This makes it possible to use condensing boiler technology efficiently.

At the illustrated memory 1 is one more in 1 and 2 illustrated piping system for two also in the 1 to 3 provided pump groups shown. As a pump group, a preferably prefabricated for a simplification assembly groups of fittings is called. The piping system is designed to allow quick assembly of the pump groups.

5 shows in a schematic perspective view similar to a connection area of a memory 1 with several, namely four, each as a connection system 3 designed connections 3m - 3p which are arranged in a row. In the embodiment according to 5 There are three of them not in 5 visible connection piece 30 each flat sealing with a designed as a piece of pipe contact piece 31 by means of a union nut 32 connected. The contact pieces 31 are each by the insulation 4 guided. The fourth connection 3p is in the illustrated embodiment without use and by means of a cap 32 locked. The cap 32 and the sealed connecting piece are of the insulation 4 covered, so that heat losses are avoided. The insulation is oriented so that the connection area in the closure area of the insulation 4 lies. The insulation 4 is closed by a hook strip, the hook strip 5 Cutouts for the contact pieces 31 having. In this case, in the illustrated embodiment, also in the region of the unused port 3p a recess on the hook strip 5 intended.

QUOTES INCLUDE IN THE DESCRIPTION

This list of the documents listed by the applicant has been generated automatically and is included solely for the better information of the reader. The list is not part of the German patent or utility model application. The DPMA assumes no liability for any errors or omissions.

Cited patent literature

• DE 202006019671 U1 [0003]
• DE 202009011313 U1 [0034]

Claims (11)

Heat or energy storage with a storage tank ( 2 ) and with a connection system ( 3 ) for a pipe comprising a wall ( 20 ) of the storage container ( 2 ) penetrating connecting piece ( 30 ) with an on an outside of the wall ( 20 ) adjacent connection area ( 300 ) and one with the connecting piece ( 30 ) in the connection region sealingly connectable contact piece ( 31 ). Heat or energy store according to claim 1, characterized in that the connection area ( 300 ) of the connecting piece ( 30 ) and a complementary contact area of the contact piece ( 31 ) are designed for a flat sealing connection. Heat or energy storage device according to claim 1 or 2, characterized in that at least two vertically spaced connecting pieces ( 30 ) are provided. Heat or energy storage according to claim 3, characterized in that the connecting pieces ( 30 ) in one, preferably in the axial direction (A) of the storage container ( 2 ) extending row are arranged. Heat or energy store according to one of claims 1 to 4, characterized in that the connection area ( 300 ) of the at least one connecting piece has an external thread. Heat or energy storage according to 1 to 5, characterized in that the contact piece ( 31 ) as a piece of pipe with a circumferential collar ( 310 ) for connection to the connecting piece ( 30 ) is designed. Heat or energy store according to one of claims 1 to 6, characterized in that one at least one lateral surface of the storage container ( 2 ) enveloping insulation ( 4 ) is provided. Heat or energy storage device according to claim 7, characterized in that the insulation ( 4 ) at least one hook strip ( 5 ) to close the insulation ( 4 ) having. Heat or energy storage according to claim 8, characterized in that the insulation ( 4 ) is aligned so that the at least one hook strip ( 5 ) in the region of the at least one connecting piece ( 31 ) lies. Heat or energy storage device according to claim 7, 8 or 9, characterized in that the insulation ( 4 ) comprises a polyester fiber fleece. Connection system for a heat or energy storage ( 1 ) with a storage container ( 2 ) according to one of claims 1 to 10, comprising a connecting piece ( 30 ) with a connection area ( 300 ) and one with the connecting piece ( 30 ) in the connection region sealingly connectable contact piece ( 31 ).

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