DE102009001556A1 - Hot water tank for use in heating of fresh water utilized for e.g. body cleaning purpose, has two heating elements that are arranged in respective chambers which are arranged one above other - Google Patents

Abstract

The tank (1) has a cylindrical water tank part that is divided into two chambers (3, 5) by a partition (7). Two heating elements (9, 11) are arranged in the respective chambers that are arranged one above the other. A flow connection (25) is provided between inner areas of the chambers. A connection device (13) is provided for each heating element. The heating element in one of the chambers is separately controllable by the heating element in the other chamber. The partition serves as a common wall for the chambers.

Description

Background of the invention

The The present invention relates to a hot water storage tank for heating of water by means of electrical energy, the at least one first and a second chamber for water and a first heating element has, which is arranged in the first chamber.

State of the art

For example, the German Offenlegungsschrift is known from the prior art DE 198 29 507 A1 known, in which an inner container is disclosed with a heating element for a hot water tank. The interior of an embodiment has at least one vertically extending, between opposing inner container walls extending, to all other inner container walls spaced partition wall. The arrangement of the heating element and the partition wall is chosen so that due to the heating of the water, a circulation is caused and forms a circumferential flow channel in the inner container, so that there is a rapid and uniform heating of the stored water.

Next is from the German patent application DE 38 31 152 A1 a hot water tank known to suppress the propagation of bacteria in the soil area. The disclosed hot water tank has a main radiator and a floor radiator whose heating power is much smaller than that of the main radiator. This should also in the bottom area even a temperature above 50 ° C, at which the bacteria die off, can be achieved when the main heater in the upper region of the water tank, where the thermostat is arranged, the water only heated to about 60 ° C.

Furthermore, from the German Offenlegungsschrift DD 132 031 A an arrangement for increasing the safety and life for the application of inner container for hot water storage known. A protective hood is fastened above the metallic heater, which has openings of different shapes and dimensions on the lateral surfaces for advantageous water circulation.

The invention is based task

Of the Invention is based on the object, a relation to the State of the art improved hot water tank for heating of water by means of electrical energy. Especially should be saved after a complete removal of the Hot water at least a small amount of hot water quickly again be available. Furthermore, the warm-up time of the water contained in the hot water tank shortens become.

invention solution

The Reference numerals in all claims have no restrictive effect, but only theirs Improve readability.

The Solution of the task accomplished by a hot water tank with the features of claim 1.

Under a hot water tank for heating water by means Electrical energy is a device in which to understand Water can be heated and stored, whereby, for example, under-table, over-table as well as wall devices are included. An inventive DHW cylinder can be designed both pressure-resistant and non-pressurized be.

Under A chamber is to be understood as a volume area in which water is used can be located. For example, a chamber may be a separate one Part of a container, or a separate container be.

The Invention is particularly suitable for heating of fresh water. But there are also versions, for example the invention for the use of service water conceivable. The heated water can, for example, for body cleansing, dishwashing or used as drinking water. The invention is suitable especially for hot water storage, the water to a temperature of at least 15 ° C (degrees Celsius), more preferably at least 50 ° C, more preferably at least 60 ° C can warm up. The invention is particularly suitable for hot water storage, the water to a temperature of not more than 100 ° C, particularly preferably not more than 75 ° C, more preferably not more than 65 ° C can warm up.

It is an achievable advantage of the water reservoir according to the invention that specifically the content of one of several specific chambers can be heated, and thus in particular not necessarily the entire contents of the water reservoir must be heated. With the invention, a smaller amount of water can be quickly brought to a desired temperature as needed. For example, if after a bath, all the hot water of the hot water tank is consumed, the user only has to wait until the contents of a chamber of the hot water tank has been heated to hot water to continue the bath, the Ge cleaning or to use any other activity. The heating element of a chamber may advantageously be designed so that water is heated quickly. In this case, the time duration for heating the contents of a chamber can be much shorter than the duration of heating the entire contents of the hot water storage tank.

Preferred embodiment of invention

advantageous Training and further education, which individually or in combination with each other can be used are the subject of the dependent Claims.

Preferably an exchange of water can take place between the two chambers; in a preferred embodiment of the invention there is a Flow connection between the interiors of the first and the second chamber. Under a flow connection between The interiors of the chambers is a link between Understand the chambers through the water from the interior of a Chamber can flow into the interior of another chamber. Interior of a chamber is the area of a chamber to understand in which water can be located as intended. Through the exchange of water can be achieved that heated in a chamber Water advantageously also in the interior of the other chamber can flow to the whole in the hot water tank warm water without heating elements to use both chambers. By heating the water with the heating element only one chamber can reduce the power consumption the water reservoir are advantageously limited. Preferably allows the flow connection is a water circulation between the Interiors of the two chambers.

Around the interiors of the chambers flow together to be able to be particularly preferably located at both Chambers an opening, z. B. formed by an opening in a partition that separates the two chambers from each other. In one embodiment of the invention, at least one connecting device, z. B. a connecting pipe, arranged on the hot water tank, to connect the two chambers, for example, if the first Chamber and the second chamber in different containers of the hot water storage are arranged, In an inventive Hot water tank can be preassembled the connecting device, However, it is also conceivable that they only when installing the hot water tank is placed on the hot water tank.

Preferably the hot water tank has a connection device for the first and a connecting device for the second Heating element on. Under a connection device for a heating element is a device to understand where the heating element mechanically can be attached, and over which the heating element electrically can be connected. In this case, the heating element on the connection device be arranged, which in turn can be arranged on a chamber. For sealing can advantageously a sealing element between Connection device and chamber can be arranged. At the connection device electrical contacts can be arranged over the heating element is electrically connected. Furthermore can still further heating elements on a connecting device and / or temperature sensors may be arranged. By using a Connecting device may be the replacement of a defective heating element be relieved. Usually, a device consisting of heating element, temperature sensor and connection device referred to as heating flange. Advantageously, when used of at least one connection device for each heating element Standard components such as available on the market Heating flanges are used, the most favorable, robust and available for different chamber volumes could be. There may also be several connection devices be arranged in a chamber.

According to the invention preferred the heating elements of a chamber are separate from the heating elements another controlled chamber. Particularly preferably, the Heating elements of a chamber for this purpose via an electrical Line with a respective control device, such as a Switch connectable. In a particularly preferred embodiment the first heating element is controllable separately from the second heating element. The heating power of the heating elements can advantageously automatically or controlled manually. Thus, advantageously, each Chamber separately heated from the other chamber.

A preferred first and second heating element has an electrical power consumption of at least 1.5 kW, more preferably at least 2 kW. With a 2 kW heating element, for example, it is possible to heat about 5 L (liters) of 12 ° C. cold water to about 60 ° C. in about 80 minutes. For larger volumes or higher temperatures, the time to warm up the water may increase accordingly. Advantageously, a chamber can contain additional heating elements which can be used, for example, to kill bacteria, and which do not have the above-mentioned minimum power for the first and second heating elements. The heating elements are advantageously made of stainless steel, whereby they are not susceptible to rust, and thus a high operating life it is achievable.

Should after removal of all warm water from the hot water tank hot water can be quickly available again, can be beneficial the first heating element with the second heating element off Heat water contained in the first chamber. Especially preferable the interior of the first chamber is smaller than the interior of the second chamber to the time to warm the water in to shorten the first chamber. Advantageously, can the entire available electrical power be used for heating the first chamber. The inventive Hot water tank can also be used advantageously in particular if only low power available over a power grid stands: To warm cold water, for example For instantaneous water heaters, a power of about 8 kW is required become. An inventive hot water tank however, for example, can get by with a power of 2 kW. Advantageously, the first heating element is in the first chamber arranged that the water circulation between the interiors the two chambers when the first heating element and switched off second heating element is limited, and therefore only little cold water from the interior of the second chamber into the interior the first chamber can flow. This can save time for heating the water in the interior of the first chamber be reduced.

Should the entire contents of the hot water tank are heated, can advantageously both heating elements or only that second heating element can be used for heating water. If only the second heating element is used, can advantageously a circulation of water between the chambers to a warming lead the entire water. Advantageously, can warm Water from the second chamber to the first chamber and cold water from the first chamber to the second chamber to flow to be warmed up there.

The Further development of the invention is preferably provided that the first Chamber is disposed above the second chamber. hereby can advantageously when the second heating element a water circulation can be promoted by that Heating the second chamber water, which is in the interior of the second Chamber was heated, slightly into the interior of the first Chamber can ascend. To be warmed, cold water can from the interior of the first chamber into the interior of the second Flow chamber to be reheated there again to be able to. By the circulation of water between the interiors Both chambers heat exchange can be improved and thereby the heating of the water can be accelerated. Becomes however, only the first chamber is heated by the arrangement the first one over the second chamber advantageously the Water circulation between the first and the second chamber restricted, so that a water circulation predominantly only in the interior of the first Chamber takes place as the heated water rises and only water from the interior of the first chamber follows. advantageously, can after removing all the warm water from the hot water tank First, the water from the interior of the first chamber over the first heating element and then the water of the whole Hot water tank can be heated via the second heating element.

In In another preferred embodiment, the first and the second chamber has a common wall. advantageously, can be realized as a simple design of the hot water tank which is also easy to produce. Another achievable Advantage can be an improved water circulation between the two Chambers, which reduces the time to heat the water can be.

Preferably the hot water tank has a water tank, comprising the first and the second chamber. Particularly preferred is the water tank is divided into the first and the second chamber. Particularly preferably, the water tank is made of steel manufactured. Particularly preferably, the water tank a tank. This can advantageously be a simple or space-saving Design of the hot water tank allow. A preferred one Hot water tank, z. For use in a private household, has a capacity of 5 L up to 400 L.

One preferred water tank has the shape of a cylinder on. Particularly preferably, the cylinder has a rectangular, a circular, or an elliptical cross-section on. The cylinder wall of a particularly preferred water tank can be made from a rectangular sheet metal. advantageously, can be a cylindrical water tank particularly easy to manufacture, and to be particularly reliable prove.

at a variant of the hot water tank are two caps arranged on the water tank. Especially Preferably, the caps on the top surfaces of the water tank arranged. Particularly preferably, the caps with the water tank firmly connected. Advantageously, the water tank As a result, be sealed liquid-tight. Next can the water tank advantageously listed pressure resistant be.

The Further development of the invention is preferably provided that a flow connection between the interiors of the first and second chambers in the field of caps. Advantageously, this can improved water circulation between the first chamber and reach the second chamber, especially when switched on second heating element and turned off the first heating element.

In Another preferred embodiment is the water tank by a partition wall, particularly preferably by a separating plate divided into the first and the second chamber. Especially preferable the partition is made of steel. Particularly preferably the partition on an opening. Advantageously, can Water through the opening of the interior of a chamber flow into the interior of the other chamber. Especially Preferably, a pipe for the water inlet, and / or a pipe for the water drain, and / or a temperature sensor passed through the opening. advantageously, can still water through in addition to the pipe or temperature sensor pour the opening so that heated Water from the interior of the second chamber into the interior of the first chamber can flow. Advantageously, water can pass through pour the opening directly to the area of the water drain, whereby the heated water is almost complete can be used.

at a cylindrical water tank is the Partition wall particularly preferably on the cylinder wall of the water tank attached. In a cylindrical water tank with caps, the partition is particularly preferably only on the cylinder wall arranged. As a result, the partition advantageously before the caps end, creating a flow connection between can consist of the interiors of the chambers in the area of the caps. The distance of the partition from the caps can be advantageously depend on the cap rounding, reducing the size the flow connection and thus the amount of between the Interiors of the two chambers exchanged water simple constructive means can be determined. Especially preferable The partition may also be connected to the caps, and in the area of Caps have openings. This can be an advantage with a cylindrical water tank with flat caps prove because the stability of the water tank so on can be increased. Through the openings in the area of the caps can advantageously a flow connection between the interiors of the chambers in the area of the caps consist.

According to the invention preferred is the water supply in a chamber, and the water drain in one arranged another chamber. Particularly preferably, the water inlet and / or the water outlet made as a pipe. Particularly preferred is arranged the water inlet in the second chamber. advantageously, can be cold water through the water inlet into the interior of the second chamber flow. Particularly preferably, the water drain is on arranged the first chamber, and is particularly preferably as Made of pipe. Particularly preferably, the pipe is the water drain passed through an opening in the separating plate. Advantageously, heated water can flow through the water be removed from the hot water tank. Of course you can an embodiment of the invention in addition the first and the second chamber have further chambers.

According to the invention preferably provided that the hot water tank horizontally can be mounted. For horizontal installation is the hot water tank wider than high. Particularly preferably, extend at horizontal Installation of the hot water tank the first and the second chamber horizontal, the chambers are also wider than high. has the hot water tank a water tank with a partition on, so the partition runs in horizontal mounting the water tank preferably horizontally. By the horizontal Mounting and / or the horizontally extending partition can advantageously the water circulation between the two chambers when heating the second chamber to be further improved, since that in the Interior of the second chamber heated water directly can flow into the interior of the first chamber, and yourself meanwhile, it can only cool down insignificantly. In addition, by a horizontal mounting of the hot water tank especially in tight spaces advantageously be used, such as over a sink or over a bathtub. In an alternative embodiment The hot water tank can also be mounted vertically.

The present invention enables with simple constructive and inexpensive means of providing a hot water storage, the rapid heating of the stored water to one allow comfortable temperature. In particular, can a subset of the stored water within the shortest time Time to be warmed up to a comfortable temperature a complete removal of the hot water quickly again To provide hot water.

Brief description of the drawings

Further advantageous embodiments are described below with reference to an embodiment shown in the drawings, to which the invention is not limited, be closer wrote.

It show schematically:

1 a hot water tank for heating water by means of electrical energy in a sectional view from above;
and

2 a hot water tank for heating water by means of electrical energy in a sectional view from one side, facing the view 1 rotated by 90 ° about its longitudinal axis.

Detailed description based on an embodiment

at the following description of a preferred embodiment In the present invention, like reference characters designate like or comparable components.

The embodiment will be described below with reference to the 1 and 2 explained. In 1 shown is a hot water tank 1 for heating water by means of electrical energy in a sectional view. 2 shows the hot water tank 1 out 1 in a sectional view, which is rotated by 90 ° with respect to the longitudinal axis of the hot water tank. The hot water tank 1 has a cylindrical water tank, which has a first 3 and a second chamber 5 for water includes. The water tank 1 is through a partition 7 in the first one 3 and the second chamber 5 divided, wherein in the first chamber 3 a first heating element 9 and in the second chamber 5 a second heating element 11 is arranged. In this case, the hot water tank 1 a connection device 13 for the first 9 and a connection device 13 for the second heating element 11 on.

Should after removal of the entire in the hot water tank 1 can be removed more warm water, so the first chamber 3 be heated separately. Advantageously, so only in the interior of the first chamber 3 be heated water, which can quickly hot water available. Would that be in the first 3 and the second chamber 5 heated water, the user would have to wait longer for hot water. For this purpose, the two heating elements 9 . 11 separately controllable. The water intake 15 for cold water is in the form of a pipe to the second chamber 5 arranged. The water drainage 17 is in the form of a tube to the first chamber 3 arranged, and passes through an opening 19 in the partition 7 ,

The partition 7 is on the cylinder wall 21 attached to the water tank. The first 3 and the second chamber 5 So have the partition 7 as a common wall up. On the cylindrical water tank are two caps 23 arranged, which are fixed to the base and on the top surface of the cylinder. Because the caps 23 have a rounding, and the partition 7 only on the cylinder wall 21 is fixed, the partition ends 7 in front of the caps 23 , so that in the area of the caps a flow connection 25 between the interiors of the first 3 and the second chamber 5 consists.

The hot water tank 1 is mounted horizontally, with the first chamber 3 over the second chamber 5 is arranged, and the partition wall 7 runs horizontally. The hot water tank is wider than high. Will only the second heating element 11 operated, this increases at the second heating element 11 heated water through the flow connection 25 over the second heating element 11 in the interior of the first chamber 3 on, and water from the interior of the first chamber 3 can over the other fluid connection 25 in the interior of the second chamber 5 flow. This water circulation can be exemplified by the in 2 dashed lines and marked A flow direction of the water are illustrated. Of course, there may be other currents of water, which may differ only slightly from the illustrated. If, however, only the first heating element 9 operated, the water can only in the first chamber 3 circulate, and it will cause a faster heating of the water in the first chamber 3 come. This water circulation can be exemplified by the in 2 dash-dot shown and marked B flow direction of the water to be clarified. Of course, there may be other currents of water, which may differ only slightly from the illustrated.

The present invention enables with simple constructive and inexpensive means of providing a hot water storage, the rapid heating of the stored water to one allow comfortable temperature. In particular, can a subset of the stored water within the shortest time Time to be warmed up to a comfortable temperature a complete removal of the hot water quickly again To provide hot water.

The in the above description, the claims and the Drawings disclosed features can both individually as well as in any combination for the realization the invention in its various embodiments of importance be.

1

Hot water storage

3

first chamber

5

second chamber

7

partition wall

9

first heating element

11

second heating element

13

connection device

15

water supply

17

water drain

19

opening

21

cylinder wall

23

cap

25

flow connection

QUOTES INCLUDE IN THE DESCRIPTION

This list The documents listed by the applicant have been automated generated and is solely for better information recorded by the reader. The list is not part of the German Patent or utility model application. The DPMA takes over no liability for any errors or omissions.

Cited patent literature

• - DE 19829507 A1 [0002]
• - DE 3831152 A1 [0003]
• - DD 132031 A [0004]

Claims (13)

Hot water storage tank ( 1 ) for heating water by means of electrical energy, the at least one first ( 3 ) and a second chamber ( 5 ) for water and a first heating element ( 9 ) in the first chamber ( 3 ) is arranged, characterized in that the hot water tank ( 1 ) a second heating element ( 11 ), which in the second chamber ( 5 ) is arranged. Hot water storage tank ( 1 ) for heating water by means of electrical energy according to claim 1, characterized in that a flow connection ( 25 ) between the interiors of the first ( 3 ) and the second chamber ( 5 ) consists. Hot water storage tank ( 1 ) for heating water by means of electrical energy according to one of the preceding claims, characterized in that the hot water tank ( 1 ) a connection device ( 13 ) for the first ( 9 ) and a connection device ( 13 ) for the second heating element ( 11 ) having. Hot water storage tank ( 1 ) for heating water by means of electrical energy according to one of the preceding claims, characterized in that the heating elements of a chamber are controlled separately from the heating elements of another chamber. Hot water storage tank ( 1 ) for heating water by means of electrical energy according to one of the preceding claims, characterized in that the first chamber ( 3 ) above the second chamber ( 5 ) is arranged. Hot water storage tank ( 1 ) for heating water by means of electrical energy according to one of the preceding claims, characterized in that the first ( 3 ) and the second chamber ( 5 ) have a common wall. Hot water storage tank ( 1 ) for heating water by means of electrical energy according to one of the preceding claims, characterized in that the hot water tank ( 1 ) has a water tank containing the first ( 3 ) and the second chamber ( 5 ). Hot water storage tank ( 1 ) for heating water by means of electrical energy according to claim 6, characterized in that the water container has the shape of a cylinder. Hot water storage tank ( 1 ) for heating water by means of electrical energy according to claim 6 or 7, characterized in that on the water tank two caps ( 23 ) are arranged. Hot water storage tank ( 1 ) for heating water by means of electrical energy according to claim 8, characterized in that a flow connection ( 25 ) between the interiors of the first ( 3 ) and the second chamber ( 3 ) in the area of caps ( 23 ) consists. Hot water storage tank ( 1 ) for heating water by means of electrical energy according to claim 6 to 9, characterized in that the water tank by a partition wall ( 7 ) in the first ( 3 ) and the second chamber ( 5 ) is divided. Hot water storage tank ( 1 ) for heating water by means of electrical energy according to one of the preceding claims, characterized in that the water supply ( 15 ) in a chamber, and the water drain ( 17 ) is arranged in another chamber. Hot water storage tank ( 1 ) for heating water by means of electrical energy according to one of the preceding claims, characterized in that the hot water tank ( 1 ) is horizontally mountable.