DE19633930A1 - Monolithic heat storage cabinet - Google Patents

Abstract

This invention concerns a device for providing for the heating requirements of a living unit which is supplied by a central heating system. According to the invention, this device is designed as an essentially unitary construction.

Description

The invention relates to a device for coping with the heat requirement of a Housing unit with a heat generation station, preferably central heating plant, can be supplied, according to the preamble of claim 1.

Such a generic device, as be from DE 93 10 358 U1 is used to move to a building with multiple units supply each of the residential units individually with heat or hot water can, regardless of the time of day. So it happens, for example Show that in a building groups of people with different working hours living and leisure activities. A person who, for example, at night Having a job has a different rhythm than a person during the day is in employment and therefore needs hot water, for example End of the night shift, for example at 2:00 or 4:00 a.m. when in principle the central heating system of the building is subject to a night reduction. Here is the well-known heat storage cabinet, which is permanently from a Hei supply system with hot water, ensure that at any time Hot water or heating water for radiators is available and the heating system  in particular, their performance does not have to be reduced at night. this happens such that a heat exchanger contained in the known heat storage cabinet from the central heating system permanently with a heating fluid or Heating medium is supplied and as soon as there is a need for heat in a residential unit there is heat from the central heating circuit, for example via a heat exchanger can be transferred to domestic water to heat it.

In order to accommodate the well-known heat storage cabinet, quite considerable structural measures are carried out. So for the well-known heat feed Cherschrank a wall recess must be set up in a wall, the one Size of about 2 square meters in a relatively thick wall of at least 24 cm shell measured, but better a thicker wall. Various lines must ver lays, be connected and sealed together. The entire known arrangement requires a considerable amount of work already in the new building and even more so enormous crushing work and structural measures in the old building as well as a myriad of Individual and small parts.

Another system for supplying individual apartments in a residential building with Hot water and heating energy is known from DE 44 14 861 A1, here too Similar problems occur as in the generic prior art.

DE 32 41 536 A1 relates to a connection device for heating systems for District heating heating systems is designed.

DE 94 13 303 U1 relates to a supply system in several residential units comprehensive residential buildings, whereby this supply system is basically the same Has disadvantages as the generic prior art.

DE 82 12 803 U1 relates to a house installation unit for district heating, the also includes several voluminous components to heat from a  Decouple district heating network and for the needs of a household in different Way to harness.

It is the object of the present invention, the generic device knows and to be easy to install, requiring little space and costs To propose a device for coping with the heat requirement.

This object is achieved by a device with the in claim 1 characteristics solved.

Advantageous embodiments of the device according to the invention result from the subclaims.

The advantages to be achieved according to the invention are based on the fact that he all required line branches, runs for the media to be distributed, for example as heating medium, process water, etc., receiving section for valve devices, Pumps, heat exchangers, etc. can all be provided integrally. In doing so the necessary wiring and connection diagram as well as recording rooms for example as produced by a casting process, in particular an injection molding process. The The device according to the invention can be made of cast iron, gunmetal as well Made of aluminum or various plastics, in particular cast or be injection molded.

The device according to the invention can be particularly advantageous and inexpensive realize if it is formed in two halves, the waterproof or fluid close in a sectional plane, preferably in the plane of the connecting lines can be assembled.

If the aim is to use the device according to the invention also for a distance To make the heating network usable, the device according to the invention in Rich tion of their pressure resistance are designed to be more stable or pressure surge reducers  etc. in order to also be used for integration into a district heating network to be able to.

Due to the closely adjacent arrangement of all necessary lines and cables branches and connections, housings for valves, pumps and the like Chen, it becomes possible to use the device according to the invention in a volume of a few cubic decimeters in a wall recess of a quarter square meter and a depth of 15 cm. Surface mounting is also easy possible because the device according to the invention has no exposed lines, Lei tion branches and the like.

The device according to the invention can be surrounded by a heat insulation jacket to avoid unnecessary heat loss to the environment.

If the device according to the invention is formed in two halves, the Cutting plane between the halves or parts is the cheapest for manufacturing reasons laid in the level of the connecting lines, so that the connecting lines each Weil can be designed as half pipes. In principle, it is immaterial what type of cross-section the connecting lines have. Usual round cross cuts can be used in the same way as square or oval cross sections or otherwise trained cross sections. The device advantageously comprises a Housing, which preferably heat and / or soundproof the device at least surrounds in areas, around working noises of pumps or valves or Fließge to dampen noise. The training according to the invention also makes it possible Integrate control technology into the device, so that there is also a structural design Parts and installation advantages result because there are hardly any separate parts, temperature sensors etc. are required, but integrated into the device according to the invention that can.

In addition, the device according to the invention enables different Realize routing and types of tax without causing major in  installation errors could occur, since all lines, line branches etc. are already fixed. In a preferred embodiment, it has device according to the invention seven connections for the supply or removal of Heating medium and hot water.

In any case, a lead from the heat generation station is necessary, in particular Central heating system, a return to the heat generation station, a custom water or cold water inlet as well as a hot water outlet for heated use water. In principle, the radiator flow and the radiator return could Supply of at least one radiator of a residential unit with the heating medium can also be accommodated outside the device according to the invention. A custom water return for cold water could also be outside of the invention Device be housed. Of course, it is preferred if the latter three Fluid flows can also be integrated into the device according to the invention, since this the assembly effort, the predominant in such known devices Share of construction costs means reducing to a minimum.

A particularly advantageous embodiment results if between the front run, the radiator flow and the return a valve device is arranged, the the flow temperature of the heating medium or fluid for the radiator or radiators regulates a residential unit to a predefinable temperature. For this is a bypass line device between the radiator flow and the return or radiator return conducive. This has the advantage that a for heating domestic water high flow temperature can be specified here by the heat generation station can, so that the heat exchanger, preferably for Vorrich invention heard, can also provide higher water temperatures for industrial water, on the other hand, however, by adding cooled return water which is used for Heat generation station or central heating flows back to a lower Temperature can be regulated depending on whether radiators or a Fußbo the heating should be charged, can vary. In principle can the device according to the invention can also be designed so that it has two heating  supply circuits, namely one for radiators and one for underfloor heating can, the heating medium for the underfloor heating more cooled heating medium to be added from the return to the heat generating station. In this case the device according to the invention can also have eight or nine connections instead of seven exhibit.

Advantageously, the lines within the device according to the invention tion are molded in such a way that the heat exchanger in series with the radiator or the radiators is switched, d. H. the heating medium from the heat generator supply station first flows through the heat exchanger before it is used for space heating any heating surfaces is supplied. This has the advantage that the Heat exchanger is always adequately supplied with heating medium, so that hot water water is always present at a higher temperature and when one is opened Hot water tap there are no waiting times until heated water emerges. Since that heated domestic water can be very hot in this configuration, it is also advantageous, a temperature at the hot water outlet of the heat exchanger provide sensor that switches a valve that is provided in a bypass that the Line loop through the heat exchanger is able to short-circuit to about overheating cold water, so that no scalding occurs can occur, especially if the flow temperature of the heating medium from the central heat generation station, hereinafter referred to as the boiler, is relatively high, around 70 ° C and above.

It can be between the heat exchange device and the radiator flow Temperature sensors can be arranged around a valve device with connections to the To control the boiler flow, the boiler return and the heat exchange device so that a predetermined temperature at the heat exchanger or at the radiator flow is adjustable. A bypass is also provided here, via the heating medium from the Boiler return added to the heating medium from the boiler flow via the valve can be to heat medium with an optimized temperature to the heating surfaces to let come. This is particularly beneficial when using large quantities  of hot domestic water are required so that the heating medium that the heating surfaces are supplied, would be too cold to maintain a predetermined room temperature to obtain. In this case the boiler flow temperature would have to be set relatively high and by adding used heating medium from the boiler return to one lower temperature in front of the heat exchanger, so that on a excessive lowering of the temperature of the heating medium behind the heat exchanger and could be reacted in front of the heating surfaces in that the valve used the addition of used heating medium from the boiler return throttles or even completely prevented.

Likewise, there can also be advantages if the heat exchange device is connected in parallel to the heating surface or radiators. So can here via a distributor valve, which is located between the boiler flow and the heating surfaces and the flow of the heat exchanger is arranged, depending on the need for warm Industrial water heating medium are supplied, with a temperature sensor on the Process water drainage for the heated process water can be arranged to decrease a control value that is supplied to the distributor valve in order to pass through the regulated supply of the heating medium the hot domestic water discharged in its To keep the temperature largely constant. Of course you can also use it instead the scalding protection described above by adding cold water a bypass to be worked.

To respond to seasonal changes in temperature control technology can be provided, a switch, for example, one or more Pumping inside the device or outside the device in its conveyor speed affects to more or less heating medium from the boiler flow to be able to supply.

Since control valves are relatively expensive and not uncommonly vulnerable, they can take place Changeover valves, distributor valves or the like also a combination of gün other pumps are used. For example, in advance for heating  A pump can be arranged, the heating medium from the boiler flow Supplies heating surfaces. It is necessary that between the pump and the Heating surfaces a throttle device, in particular a gravity brake, pre is to prevent water from flowing in the opposite direction, when the said pump is out of order. Such a choke can, for example consist of a one-way valve or a helical line guide that ensures a pressure drop along a shorter line section, so that although heating medium can flow towards the heating surfaces when the pump in Operation is, however, the heating medium in the opposite direction is too high Line resistance must overcome, as opposed to a significant reverse current the flow direction of the pump could flow. Likewise, in front or behind the heat exchange device, for example a heat exchanger or a Heat pump, a pump for the heating medium may be provided here in each case it is accepted that a low leakage current to Heizme dium can come about through the pumps. The delivery rate of the pump for the heat exchange device can also be switched off by a heat sensor be set for the heated domestic water. If the temperature of the heated domestic water, so the pump for the heating medium at the heat Exchange device operated with a higher delivery rate and vice versa. Likewise, a thermally controlled switch can also be installed in the heat exchanger a switching criterion or control criterion for the pump at the heat exchange deliver direction. The leakage passing through the pump on the heat exchanger On the other hand, ge of heating medium is also advantageous, since it occurs permanently Leakage quantity ensures that the heat exchange appears without additional control effort Direction in warm weather periods, such as in summer, stays warm so that not must be waited until hot domestic water is available.

A quantity of heat is also advantageous in the device according to the invention Counter provided, for example, the amount of heat that flows through the boiler flow flows into the device according to the invention or the housing unit to be led. To prevent tampering, the amount of heat should  be designed to be lead-sealable. In addition, as far as the fiction according device also with an inlet for cold water and a Drain for cold water for the needs of the living unit concerned is a water meter provided in the device according to the invention be so that the device can also serve as a water meter.

To include the room temperature as at least certain areas of the housing unit Being able to use the control or control criterion can also be at least one Connection may be provided to an external to the device according to the invention to be able to connect arranged temperature sensors. A corresponding connection can also be provided for a temperature sensor external to the building.

The present invention is described below based on preferred embodiments shapes described with reference to the accompanying drawings, with further objects, features and advantages according to the present invention be disclosed. It can be seen that the features of the various implementations game also combined with one another to form further advantageous exemplary embodiments can be, for example, if in one embodiment a valve through a Pump is replaced, or the like. The figures show:

Figure 1 is a partially transparent perspective side view of a first imple mentation form.

FIG. 2 shows a side view of a line or connection diagram of a further embodiment according to the invention, in particular according to FIG. 1;

Figure 3 is a cross-sectional view through a further embodiment of the present invention in the amount of heat exchange device.

Fig. 4 shows a further embodiment of the device according to the present invention in a schematic representation;

Fig. 5 shows another embodiment according to the invention in a schematic representation;

Fig. 6 is yet another embodiment of the device according to the present invention in a schematic representation;

Fig. 7 shows a further embodiment of the device according to the present invention in a schematic representation; and

Fig. 8 shows a last embodiment according to the present invention also in a schematic representation.

It should be said that the device according to the invention is in principle various connection and wiring schemes can be realized and the illustrated In this respect, exemplary embodiments can be expanded as desired. For example wise connections and lines are omitted or supplemented. For example connections for heating surfaces of different flow temperatures could be provided be, namely radiators and in contrast, underfloor heating. On the other hand, branches can also branch off from the boiler flow, for example Heating surfaces made in front of or behind the device according to the invention will. Correspondingly, an inlet for cold process water can be provided, only an outlet for heated service water is assigned to it and otherwise no cold water through the device according to the invention flows, in particular due to a cooling of the device according to the invention Avoid permanent cold water or unnecessary heating tion of the cold water flowing through the device according to the invention, which as such is used to avoid.

The reference symbols used in FIGS . 1 to 3 relate essentially to the same or functionally identical components. The reference characters used in FIGS. 4 to 8, which are offset by decades, also relate to the same or at least functionally identical components ( 122 e = 522 e = 1522 e).

In Fig. 1, the device according to the invention, hereinafter referred to as the heat storage cabinet, has been generally identified by the reference numeral 10 . The heat storage cabinet 10 is formed in one piece, with two halves 12 a and 12 b, in which lines 30 a, 30 b shown by way of example are each provided in half, are created. The two halves 12 a, 12 b are assembled via respective seals 34 in order to provide the required tight conduction paths that are required to be able to perform the desired functions of the heat storage cabinet 10 according to the invention. At certain predetermined locations of the heat storage cabinet 10 , receiving spaces 32 are provided, which are provided to accommodate, for example, valves 28 a, 28 b, 28 c, counting devices, such as heat meters 36 or water meters 26 , pumps 14 or the like, so that they are sealed they can access the flow paths 30 a, 30 b of the heat storage cabinet 10 according to the invention in the desired manner.

The one-piece design of the heat storage cabinet 10 enables that in the halves 12 a and 12 b housing geometries of, for example, pumps 14 , heat meter 36 or water meter 26 can be integrated directly by casting or simple reworking of the mold. It is also possible for the formation of a pump housing to interrupt the pump flow path in the halves 12 a and 12 b through a recess. In this recess, a comparatively easy-to-use insert, for example made of plastic, which now forms a pump housing together with the halves 12 a and 12 b, in which a pump head consisting of pump impeller and pump motor is merely inserted.

In view of the large number of necessary housings with adapted internal geometries for pumps, valves, counters, sensors and the like, there is a considerable one Space saving and a cost reduction.

Lines 24 as signal line sections or control line sections are also provided, for example in order to be able to regulate the pump output of the pump 14 via a pump control 15 or to be able to change the position of the valves 28 a to c. Furthermore, these lines 24 can be used to record measurement signals relating to temperatures, for example via quantities conveyed (heat meter) or the like, in order to be sent to a controller 18 for further processing or storage. The controller 18 can also contain control curves for different operating modes, for example summer and / or winter operating modes etc. On the one hand, permanent memories are preferably provided, in particular for a control program and for control curves or the like, and overwritable permanent memories for values to be stored, such as counted heat flow rates or the like.

A housing 20 can lock the heat storage cabinet 10 according to the invention to the outside, on the one hand to be able to serve as a cover, sight protection and protection against unauthorized access, and on the other hand, if desired, also to serve as heat insulation. The entire heat storage cabinet can also be surrounded by thermal insulation and / or sound insulation.

The present invention is provided on the heat storage cabinet 10 inlet and outlet lines 22 a to 22 g can enter into the heat storage cabinet 10 side. On the other hand, they can also enter the heat storage cabinet 10 from behind. It is not necessary that these feed lines 22 a to 22 g are only arranged on one side, although this is advantageous.

A decoupling section 23 is provided between the heating section and the service water section of the housing halves 12 a and 12 b. This can preferably be connected to the surroundings without pressure. This section 23 is, for example, in the form of a housing groove in the half 12 a and / or in the half 12 b just as conceivable as a recess in the sealing material, which is pressed together when the two housing halves are screwed together. This measure protects the drinking water area from the inflow of contaminated heating water as well as the heating area from the entry of oxygen-rich drinking water in the event of any internal leakage between the housing halves. In the first case, for example, there may be signs of poisoning, while in the latter case there may be massive corrosion in the heating lines. If, for example, the housing seal on the drinking water side now leaks after the recess 23 has been introduced, this leads to water leakage into the atmosphere or environment, which is quickly noticed by the user and can be repaired by a person skilled in the art.

A collecting container can also be provided to hold the escaping water takes. A moisture detector can, for example, with a warning in the collection container Indicator light and / or warning sound can be provided, which indicates the leakage situation.

In the present specific embodiment, the connection 22 a is occupied by the flow for heating surfaces or radiators or underfloor heating. The connection 22 b is occupied by the return from the heating surfaces. The connection 22 c is occupied by the return from the boiler. The connection 22 d is assigned to the boiler flow. The connection 22 e is required for the discharge of the heated domestic water. The connection 22 f relates to the discharge for the cold service water supplied via the supply line 22 g.

FIG. 2 shows a wiring diagram that could also be used in the embodiment according to FIG. 1. The connections 22 a to 22 g shown are equally occupied, as is the case with the embodiment according to FIG. 1. The half 12 b shown in FIG. 2 of an embodiment of the heat storage cabinet according to the invention has receiving spaces 32 , 36 which are designed to accommodate, as already stated, valves, locking devices, pumps, heat meters, etc. Various lines 30 a to 30 c, 30 d and 30 e as well as 30 f and 30 g are designated by way of example and are assigned to water heating in the present case. The numeral 16 reveals the placement of the heat exchanger 16th So cold water is supplied to the heat exchanger via the inlet area 30 g and the heated service water is removed from the heat exchanger via the outlet area 30 f. At reference numeral 32 there is a mixer valve which, if the drained domestic water is too warm, can mix in cold water in order not to pass on too hot water as heated domestic water, which could possibly cause burns. In this case, a temperature sensor is provided behind the valve arranged in the housing 32 in the line opening into the connection 22 e, in which the valve in the recess or the housing 32 can emit a signal corresponding to the temperature of the hot service water, which regulates the cold water mixture can be used. The heating medium from the boiler flow 22 d is introduced via the feed 30 d into the heat exchanger device 16 , hereinafter referred to as heat exchanger, and derived via the connection area 30 e from the heat exchanger and supplied to the heating surface flow, subsequently the radiator flow, 22 a. Depending on the temperature of the heating medium at the Heizkörpervor run 22 a, a certain amount of used heating medium from the radiator return 22 b can be mixed in via a mixer valve located in a recess 32 a to reduce the flow temperature for the radiators. In this way, a relatively high temperature can be provided for the heat exchanger for heating the domestic water, while the radiators or underfloor heating, which require a lower temperature, are supplied with a heating medium with a regulated temperature.

The section shown in Fig. 3 through another embodiment according to the present invention, which could be created at the level of the heat exchanger in the embodiment according to FIGS. 2 and 2, shows the installation position of the heat exchanger 16 in cross section. The generally designated in the illustration with the reference symbol 22 connections go out in this embodiment from the rear of the heat storage cabinet, which is held on brackets 36 on a wall in a surface-mounting arrangement. Accordingly, this embodiment of the device according to the invention can also be held in a wall recess in the wall 38 .

In FIG. 3, the division of the heat storage cabinet according to the invention in halves 12 a, 12 b be seen particularly well. The housing 20 covers the heat storage cabinet including the heat exchanger 16 and covers it. The discharge 30 f for hot domestic water is below, while the cold water supply 30 g can be found above.

In Fig. 4 a preferred embodiment of the heat storage cabinet according to the invention is shown in its integration into a central heating system, the actual heat storage cabinet being limited in its extent by a dashed line. Of course, this representation is not to scale, since the heat storage cabinet according to the invention only occupies an area of approximately a quarter of a square meter.

A heating medium, for example heated to 70 ° C. or 80 ° C., is fed from a boiler flow 122 d and passed on via a valve 158 with a thermal drive 172 in the direction of radiators 190 and a heat exchanger 116 . The valve 158 can, depending on the temperature measured by a temperature sensor 150 of the heating medium at a radiator supply 122 a, use used, cooled heating medium from a boiler return 122 c via a bypass 162 to add the temperature of the radiators 190 or the heat exchanger 116 Increase or decrease the heating medium. A Pumpein device 156 is arranged after the valve 158 in the flow to the radiators 190 and the heat exchanger 116 . The delivery rate of the pumping device 156 can be varied via a switch 61 , by means of which the pumping rate can be adapted to an ambient or outside temperature, for example depending on the time of year (winter / summer). The switch 160 is also able to switch a valve 152 which is arranged at a line crossing point, which on the one hand connects to the pump device 156 and on the other hand continues into the radiator flow 122 a, and has a connection section to the heat exchanger 116 . Depending on the ambient temperature, the changeover valve 152 can be switched via the changeover device 154 in winter in such a way that heating medium flows both over the radiators 190 and over the heat exchanger 116 and in summer be switched such that the heating medium is only via the heat exchanger 116th flows.

The heat exchanger 116 is connected to the boiler flow 122 d and the boiler return 122 c. In addition, the heat exchanger in the process water circuit is connected to a process water supply 122 g and a process 122 e for hot process water. The heat exchanger contains a temperature sensor 164 , which can also be used as a control criterion for the valve 152 in order to supply more heating medium if the temperature in the heat exchanger drops too much, or to supply less heating medium if the temperature in the heat exchanger 116 becomes too high. In addition, the temperature sensor 164 in the heat exchanger 116 can also be connected to the changeover switch, for example in order to create a control criterion for the pump device 156 in order to increase the delivery capacity of the pump device 156 if the sensed temperature of the heat exchanger 116 has fallen too much, or the Reduce pump output if the temperature at the heat exchanger is excessive.

A cold water discharge 122 f is arranged in front of the heat exchanger in the process water circuit in order to discharge cold water, in particular as process water for the residential unit assigned to the heat storage cabinet according to this embodiment. A bypass with a control valve device 168 is arranged between the cold water discharge 122 f and the discharge for heated process water 122 e. A temperature sensor 170 on the outlet 122 for heated domestic water gives a signal to the control valve 168 , after which a certain amount of water is added to the heated domestic water in order not to pass excessively heated domestic water through the outlet, which could otherwise lead to scalding.

The heating medium supplied to the radiators 190 via the radiator supply 122 a is returned via the radiator return 122 b in this embodiment of a heat storage cabinet according to the invention and can be added to the heating medium at the boiler supply 122 d via the valve 158 , or can be via the boiler return 122 c from the invention trained heat storage cabinet are transported out.

A preferred embodiment shown in FIG. 5 according to the invention has corresponding connections, as it has the embodiment according to FIG. 4. In contrast to the embodiment according to FIG. 4, the three-way valve 352 is only controlled as a function of a temperature of the heated service water measured by a temperature sensor 351 . If the temperature of the hot water to be heated drops below a predetermined value, the distributor valve or three-way valve 352 is controlled such that additional or more heating medium is supplied to the heat exchanger 316 in order to raise the temperature of the hot water to be heated. The same applies in the event that the domestic water to be heated assumes an excessive temperature. The pumping device 356 is here only controlled as a function of the changeover switch 360 , which is able to carry out a control as a function of, for example, the seasonal environmental temperature.

Here, as in the embodiment according to FIG. 4, the heating medium used by the heat exchanger 316 or 116 is passed back via a connecting line 366 or 166 into the boiler return 322 c or 122 c.

Compared to the embodiment according to FIGS. 4 and 5, the heat exchanger 516 in the embodiment according to FIG. 6 is not arranged parallel to the radiators 190 , 390 , but is connected in series with the radiators 519 , so that it does not require separate control , the flow of heating medium is permanent, insofar as an electrical changeover valve 552 is switched via its electrical circuit 554 , either incorporates the radiators 590 into the circuit or else excludes them from the circuit. It is preferred that a Pumpein device 556 allows a leakage amount of heating medium, so that even in a warm weather period when the radiators 590 are not exposed to the heat exchanger 516 always an at least small amount of heating medium is supplied via the boiler flow 522 d , so that the hot water in the heat exchanger 516 is kept warm, so that there are no waiting times when hot hot water is withdrawn.

A temperature sensor 564 in the heat exchanger 516 is on the one hand connected to the changeover valve 552 in order to be able to throttle the supply of heating medium to the radiators 590 in the event of a larger hot water requirement, in order to provide the heat exchanger with more power. On the other hand, the temperature sensor 564 is also connected to the pump device 556 in order to activate it, for example, in a good weather period, when the radiators 590 do not have to provide heating power, when the temperature in the heat exchanger falls below a predetermined minimum value.

Here, too, cold water can be added to the hot water heated by the heat exchanger via a valve 568 , depending on the temperature of the heated hot water felt by a temperature sensor 570 , in order to provide scalding protection.

The valve 558 is controlled as a function of the temperature of the heating medium felt by a temperature sensor 550 , with more or less or no used heating medium being added from the boiler return 522 c via the bypass 562 to the heating medium at the boiler flow 522 d, depending on the temperature sensed.

In Fig. 7, the heat exchanger 1416 is again integrated into the heating circuit parallel to the radiators 1490 . In this embodiment, pumps 1456 , 1482 are used instead of control valves, which are operated faster, slower or not at all depending on the sensed temperature of the heated process water or the heating medium to be supplied to the radiators 1490 . A gravity brake 1480 prevents the reversal of the flow direction of the heating circuit. The pump 1482 must allow a leakage current for the heating medium, so that the heat exchanger is always flowed through by heating medium, so that it does not occur when hot domestic water is requested in good weather periods when no heating power is otherwise required.

The pump 1482 can also be operated faster or slower depending on the temperature sensor 1464 in the heat exchanger 1416 , so that regardless of the leakage amount of heating medium in a drop in temperature in the heat exchanger, heating medium can be supplied in order to heat the heat exchanger again. Depending on the temperature at the heat exchanger, a control can also be carried out on the valve 1458 in order, as in the embodiments explained above, to regulate or reduce the addition of cooled heating medium from the boiler return 1422 c if an undesired change occurs or the temperature in the heat exchanger falls below a given minimum value.

Of course, with all regulations that are carried out, different minimum temperatures can be used as a starting condition for the regulation of a specific device. For example, when the temperature in the heat exchanger falls below a certain level, the delivery capacity of the pump 1482 can first be increased. If a further temperature mark is undershot, a corresponding regulation can be carried out on the valve 1458 or on the pump 1456 . If the temperature in the heat exchanger 1416 falls below a further minimum temperature, additional control can be carried out on the pump 1456 or the valve 1458 . Of course, all regulations can be carried out overlapping or intermittent.

In the embodiment shown in FIG. 8 and shown here as the last, the heat exchanger has also been arranged parallel to the space heaters 1590 . The process water preparation circuit corresponds in principle to the point shown approximately in FIG. 6. The connection of the heat exchanger 1516 to the boiler corresponds in principle to that shown in FIG. 7, but the pump 1582 is controlled exclusively as a function of the temperature of the heat exchanger 1516 felt by the temperature sensing device 1564 . A gravity brake 1580 , which is also provided here, prevents used heating medium from flowing back when the pump 1582 which allows a leakage quantity is out of operation.

The temperature sensor 1564 can also influence the pump 1556 assigned to the radiators 1590 if, for. B. the temperature in the heat exchanger has been reduced too much, and can restrict the supply of the heating medium to the radiators 1590 or at times completely prevent it until the temperature in the heat exchanger has been moved back into a predeterminable acceptance range.

On the other hand, if the pump 1582 does not allow any leakage, the heat exchanger 1516 can also be sufficiently heated by heat conduction within the heat storage cabinet according to the invention, ie by a sufficient thermal conductivity of the material. In a good weather period when the pump 1556 is out of operation, only the pump 1582 is operating. The start-up can then be carried out by the temperature sensor 1564 , as has already been indicated above. The valve 1558 is then in the AB position, so that the radiators 1590 are excluded from the circuit.

If the heating elements 1590 are required as well as heated service water is required, the pumps 1556 , 1582 can be operated alternately as well as in parallel.

In the embodiment according to FIG. 8, as also in the case of the other execution forms according to the remaining figures, a bypass 1562 ( 1462 in FIG. 7 etc.) can be used to produce a quantity of used heating medium of up to 20% at a temperature of 40 ° C are added to regulate the temperature of the heating medium at the boiler flow 1522 d from 70 ° C to 50 ° C at the heater flow 1522 a.

As can be seen from the discussion of the above embodiments, The heat storage cabinet according to the invention can be used in many different ways train, but it can always be formed in one piece in the smallest space and thus easy to assemble and easy and inexpensive to manufacture.

In addition, the heat storage cabinet according to the invention contains the entire Control and regulating technology and electronics internally, possibly except for at least one Room temperature sensor (not shown) and possibly an outside temperature sensor.

Claims (22)

1. Device for coping with the heat requirement of a residential unit, which can be supplied with a heat generation station, preferably a central heating system,
with a lead from the heat generation station,
with a return to the heat generation station,
preferably with a radiator flow,
preferably with a radiator return,
with a hot water supply for the supply of cold hot water,
with a hot water drain for heated hot water,
with connecting lines between the barrels,
with at least one receiving section for a valve device,
with at least one connection section for a domestic water heat exchanger, such as a heat pump or heat exchanger,
characterized in that the device ( 10 ) can be formed essentially integrally. 2. Device according to claim 1, characterized in that the device ( 10 ) in two halves or parts ( 12 a, 12 b) can be formed, the water or fluid-tight in a sectional plane, preferably in the plane of the connecting lines to be assembled are. 3. Device according to one of claims 1 or 2, characterized in that the device or the halves made of metal and / or plastic in particular injection molded, cast or made.   4. The device of claims 1 to 3, characterized in that the device (10) has a cold water return (22 f), which is connected to a position between hot water inlet (22 g) and outlet (22 e) for a. 5. Device according to one of claims 1 to 4, characterized in that the device ( 10 ) has a housing ( 20 ), in which the heat exchange device ( 16 ) is preferably also contained. 6. Device according to one of claims 1 to 5, characterized in that (d 22, 122 d, 322 d) between the forward, the radiator intake (22 a, 122 a, 322 a) and the return (22 c, 122 c , 322 c) a valve device ( 152 ) is arranged which regulates the flow temperature of the heating medium for the radiator (s) ( 190 ; 390 ; 590 ; 1490 ; 1590 ) to a predeterminable temperature. 7. Device according to one of claims 1 to 6, characterized in that the heat exchanger ( 16 ; 116 ; 316 ; 516 ; 1416 ; 1516 ) in series with the radiator ( 190 ; 390 ; 590 ; 1490 ; 1590 ) or the heating surface connected. 8. The device according to claim 7, characterized in that a temperature sensor ( 158 ) between the heat exchange device ( 16 ; 116 ; 316 ; 516 ; 1416 ; 1516 ) and the radiator flow ( 22 a; 122 a; 322 a; 522 a; 1422 a; 1522 a) is arranged to control a valve device ( 158 ) with connections to the flow ( 122 b), the return ( 122 c) and the heat exchange device ( 16 ; 116 ; 316 ; 516 ; 1416 ; 1516 ) that a predefinable temperature of the heating medium at the radiator flow ( 22 a; 122 a; 322 a; 522 a; 1422 a; 1522 a) is adjustable. 9. Device according to one of claims 1 to 8, characterized in that the heat exchange device ( 16 ; 116 ; 316 ; 1416 ; 1516 ) is connected in parallel to the or the radiators ( 190 ). 10. The device according to claim 9, characterized in that between the heat exchange device ( 16 ; 116 ; 316 ; 1416 ; 1516 ) and the return ( 22 c; 122 c: 322 c; 1422 c; 1522 c) a control device, such as a valve or an engine that is arranged on. 11. Device according to one of claims 1 to 10, characterized in that in the process water outlet ( 22 e; 122 e) a temperature sensing device ( 170 ; 270 ) can be arranged, the throughput of heating medium through the heat exchange device and / or the addition of cold water the heated service water can be controlled via a control device, for example a valve or a pump. 12. The device according to one of claims 1 to 11, characterized in that that the control or control technology or electronics essentially in the front direction is housed. 13. Device according to one of claims 1 to 12, characterized in that on or in the heat exchange device ( 16 ; 116 ; 316 ; 516 ; 1416 ; 1516 ), a thermal sensing device ( 164 ; 264 ; 364 ; 564 ; 1464 ; 1564 ) , such as a thermal switch ter, an electrical resistance thermometer or the like is arranged, which emits a control signal to regulate or control the temperature of the heating medium at the radiator flow and / or upstream of the heat exchange device, for example by adding or throttling the addition of heating medium from the return. 14. Device according to one of claims 1 to 13, characterized in that in the radiator flow ( 22 e; 122 e; 322 e; 522 e; 1422 e; 1522 e) or return ( 22 b; 122 b; 322 b; 522 b; 1422 b; 1522 b) a flow throttle device ( 1480 ; 1580 ), for example a gravity brake, is arranged. 15. The device according to one of claims 1 to 14, characterized in that a heat meter is provided, preferably before unauthorized access can be secured or can be sealed. 16. The device according to one of claims 1 to 15, characterized in that a control device ( 16 ; 160 ; 360 ) is provided to carry out a seasonal control. 17. The device according to one of claims 1 to 16, characterized in that that at least one room temperature sensor connection is provided to a room temperature-dependent control of at least the temperature of the heating medium on Radiator flow. 18. Device according to one of claims 1 to 17, characterized in that that at least one, preferably two additional connections for a floor heater tion or a heating device with a lower flow temperature are provided. 19. Device according to one of claims 1 to 18, characterized in that at least one outside temperature sensor connection is provided to one outside temperature-dependent control of at least the temperature of the heating medium Radiator flow. 20. Device according to one of claims 1 to 19, characterized in that the device ( 10 ) has a decoupling section ( 23 ). 21. The apparatus according to claim 20, characterized in that the decoupling treatment section ( 23 ) has a separating area which runs between the sections assigned to the heating and the sections assigned to the process water and in particular is designed as a separating joint, for example separately or in a logging device . 22. Device according to one of claims 20 or 21, characterized in that the decoupling section ( 23 ) opens into the environment or, for example, in a collecting container, in particular with an optical and / or acoustic warning indicator.