EP2636958A2 - Heating circuit distributor with integrated hydraulic separator - Google Patents

Abstract

The heating circuit (1) has housing (10) in which heating circuit supply ports (21,41) and heating circuit return ports (32,42). The intermediate chamber (4) of medium-heating medium temperature is connected between advance chamber (2) of high heating medium temperature and return flow chamber (3) of low heating medium temperature. The heating return port (32) is connected with return chamber. The intermediate chamber and switch chamber (5) provided in housing are connected with each other over connection within housing. The supply port (21) is connected with advance chamber, while heating return port (42) is connected with intermediate chamber.

Description

The present invention relates to a heating circuit manifold with integrated hydraulic switch, with an elongated, horizontally arranged in operation housing in which a flow chamber high Heizmediumtemperatur and a return chamber low heating medium temperature and these two chambers are fluidly connected switch chamber are arranged, wherein on the housing on the one hand several Heizkreisvorlaufanschlüsse and a plurality of Heizkreisrücklaufanschlüsse and on the other hand each a boiler supply connection and boiler return connection are provided, wherein the boiler flow connection and the boiler return port open into the switch chamber and wherein the switch chamber is connected at two horizontally spaced locations on the one hand to the flow chamber and on the other hand to the return chamber fluidly connected.

A heating circuit distributor of the type indicated above is made DE 20 2005 005 008 U1 known. By means of this distributor, the heated in a boiler heating medium, usually water, can be distributed to several heating circuits. At the same time, the heating medium flowing back from the heating circuits is collected and returned to the boiler for renewed heating. If required, the integrated hydraulic diverter compensates for different volume flows of the heating medium in the boiler circuit on the one hand and in the heating circuits on the other hand. The distributor has an advantageous compact and space-saving design.

A disadvantage is considered in this known distributor, that it is well suited only for the supply of several heating circuits with mutually equal heating circuit flow temperature, because all heating circuits are supplied together from the flow chamber. In modern heating systems, however, there is an increasing need for two or more heating circuits with different heating circuit flow temperature and / or supply different heating circuit return temperature during economical operation.

Out DE 20 2010 006 896 U1 a collector-manifold unit with hydraulic switch is known, which can supply two or more heating circuits with heating medium respectively appropriate temperature. This unit is used in particular for connecting one or more heating or cooling sources with a plurality of heating or cooling circuits, wherein the unit comprises a container in the interior of which at least two superposed chambers are provided, which are in fluid communication with each other, and wherein connections for flow and Return of the heat or cold sources and for flow and return of the heating or cooling circuits are arranged on a peripheral wall of the container and connected to one of the chambers. Each chamber is formed by its own arranged inside the container chamber housing, the chamber housing spaced from each other and to inner surfaces of the container and each chamber housing on the top and / or bottom each have at least one flow passage for the heating medium.

Although such a distributor avoids the disadvantages of the former distributor according to the prior art, but is relatively expensive in its construction and requires a relatively large amount of space, which its use only in heating systems with more than two or three heating circuits with different heating circuit flow temperature and / or with several heat sources different flow temperature technically and economically makes sense.

While the two presented in the aforementioned documents to the prior art solutions get along without major regulatory effort, solutions for heating systems in which consumer circuits are connected with different temperature levels, known from practice, for optimum operation of these systems a high electronic effort in terms Use regulation and control. This requires, for example, electrically adjustable valves and mixers, variable speed pumps, various temperature sensors and a higher-level electronic control unit, which makes the equipment complex and expensive.

It is therefore an object to provide a heating circuit distributor of the type mentioned above, which avoids the disadvantages set out above and allows the supply of at least two heating circuits with heating medium with two different heating circuit flow temperatures in a technically simple, compact design.

• dass zusätzlich zu der Vorlaufkammer hoher Heizmediumtemperatur und der Rücklaufkammer niedriger Heizmediumtemperatur eine Zwischenkammer mittlerer Heizmediumtemperatur im Gehäuse angeordnet ist,
• dass mit der Vorlaufkammer hoher Heizmediumtemperatur mindestens ein Heizkreisvorlaufanschluss eines Heizkreises mit hoher Heizmediumvorlauftemperatur verbunden ist,
• dass mit der Zwischenkammer mindestens ein Heizkreisrücklaufanschluss eines Heizkreises mit mittlerer Heizmediumrücklauftemperatur und mindestens ein Heizkreisvorlaufanschluss eines Heizkreises mit mittlerer Heizmediumvorlauftemperatur verbunden sind,
• dass mit der Rücklaufkammer niedriger Heizmediumtemperatur mindestens ein Heizkreisrücklaufanschluss eines Heizkreises mit niedriger Heizmediumrücklauftemperatur verbunden ist und
• dass die Zwischenkammer und die Weichenkammer über mindestens eine Verbindung innerhalb des Gehäuses strömungsmäßig miteinander verbunden sind.

The solution of this object succeeds according to the invention with a heating circuit distributor of the type mentioned, which is characterized

• an intermediate chamber of medium heating medium temperature is arranged in the housing in addition to the flow chamber of high heating medium temperature and the return chamber of low heating medium temperature,
• in that at least one heating circuit flow connection of a heating circuit having a high heating medium flow temperature is connected to the flow chamber of high heating medium temperature,
• in that at least one heating circuit return connection of a heating circuit having an average heating medium return temperature and at least one heating circuit supply connection of a heating circuit having an average heating medium supply temperature are connected to the intermediate chamber,
• that at least one heating circuit return connection of a heating circuit with a low heating medium return temperature is connected to the return chamber of low heating medium temperature, and
• in that the intermediate chamber and the switch chamber are fluidly connected to one another via at least one connection within the housing.

With the invention, a heating circuit manifold is provided with which at least two heating circuits can be supplied with heating medium of two different temperatures and compensated with the simultaneously occurring via the integrated hydraulic switch all possibly occurring during operation volume flow differences both between the various heating circuits and between the boiler circuit and the heating circuits can be. An economically optimal operation results when the return temperature of the heating circuit with the higher heating medium temperature is in the range of the flow temperature of the heating circuit with the lower heating medium temperature; the heating circuits can then be flow-connected in series through which the heating medium flows successively, before the heating medium is returned to the boiler for renewed heating. Here, the heat energy contained in the heating medium is used optimally and the boiler the heating medium is supplied to the lowest possible temperature for reheating, which brings advantages in particular when using a condensing boilers as a boiler with it. In this case, the Heizkreisverteiler has only a small size, which is practically no larger than in the known distributors according to the above-mentioned in the first place of the prior art. Compared to distributors according to the above second prior art, the heating circuit distributor according to the invention has the advantage of a technically simpler design and much more compact design. In comparison with the prior art mentioned above in the third place, the heating circuit distributor according to the invention offers a cost-effective solution for supplying heating systems in which the consumer circuits operate at different temperature levels. It can be advantageously dispensed with complex components and elements with a greater regulatory effort for control and regulation.

In principle, the various chambers of the heating circuit distributor can be accommodated anywhere in the housing. For reasons of a clear and favorable flow guidance and connection arrangement, however, according to the invention it is preferably provided that the flow chamber, the return chamber and the intermediate chamber are arranged in an upper part of the housing and that the switch chamber is arranged underneath in a lower part of the housing. The flow chamber, the return chamber and the intermediate chamber may be arranged at a height, so that then the various heating circuit flow connections and return connections can be arranged correspondingly at a height. The boiler feed and boiler return ports connected to the switch chamber may be remote from the heater circuit supply and return circuits on the housing. Overall, this results in a clear, connection error-avoiding connection arrangement for the heating circuit manifold.

For the purpose of a simple technical construction and cheap manufacturability of Heizkreisverteilers is preferably provided that the housing has a partition, the upper side delimits the flow chamber, the return chamber and the intermediate chamber and the upper chamber and which at least three openings for producing the flow connections between the switch chamber on the one hand and the flow chamber, the return chamber and the intermediate chamber on the other hand. Despite its various functions, the dividing wall here is a simple and cost-effective component.

Further, the invention proposes that seen in the longitudinal direction of the housing, the flow chamber and the return chamber are arranged end face in the housing and that the intermediate chamber extends over the remaining central part of the length of the housing between the flow chamber and the return chamber. With this arrangement of said chambers in the housing relative to each other a clear assignment of the various ports of these chambers is made possible. In addition, heat losses within the distributor are kept low because no particularly large temperature differences occur between the adjacent chambers.

The absolute chamber sizes and the ratio of the chamber sizes relative to each other depends on the needs of the associated heating system, in particular how many customer or heating circuits are connected in the different temperature levels at the respective chamber and what volume flow of heating medium is required by the heating circuits.

In order to allow a cheap, clear and space-saving piping of the heating circuit manifold according to the invention, preferably the heating circuit flow connections and Heizkreisrücklaufanschlüsse are on the upper side and the boiler flow connection and the boiler return port on the underside of the housing. All necessary for connection of the heating circuit manifold pipes can thus be arranged advantageously in a plane.

During normal operation of the heating circuit distributor, in which no compensating flows flow via the hydraulic separator, the heating medium flows should be able to flow through the heating circuit distributor with as little loss as possible. For this purpose, it is proposed that the boiler feed connection, the at least one associated with the flow chamber Heizkreisvorlaufanschluss and the associated aperture in the partition are aligned with each other and that the boiler return port, the at least one connected to the return chamber Heizkreisrücklaufanschluss and the associated opening in the partition with each other are arranged in alignment. Flow deflections in the housing of the distributor, which would lead to increased flow resistance, are thus avoided. In order to achieve favorable flow conditions between the switch chamber and the intermediate chamber in the case of compensating flows, it is preferably provided that the intermediate chamber and the switch chamber are fluidly connected to one another via two openings in the partition which are spaced apart from one another in the longitudinal direction of the housing. Due to the distance between the two openings, the one opening is closer to the boiler supply connection and the other opening closer to the boiler return connection, so that can flow through the first-mentioned opening substantially heating medium from the boiler supply connection from the switch chamber in the intermediate chamber, while through the other opening substantially heating medium the intermediate chamber can flow into the switch chamber and then to the boiler return port.

Another measure for achieving favorable flow conditions is that preferably the at least one heating circuit return connection connected to the intermediate chamber and at least one heating circuit supply connection are each arranged in alignment with one of the openings in the partition between the switch chamber and the intermediate chamber.

In order to avoid an undesirable short-circuit flow from the boiler flow connection through the switch chamber to the boiler return connection or at least to limit a non-interfering measure, the invention provides that the two openings each one is assigned over the height of the switch chamber pipe socket with at least one lateral opening, wherein the opening points to the nearest boiler connection. Appropriately, the outer diameter of the pipe socket is chosen so that they occupy most of the cross section of the switch chamber, but still leave a sufficient cross-section to enable the demand-compensating flows. In practice, a residual cross section of about 10 to 20% of the total cross section of the switch chamber is sufficient for the compensation flows. The pipe socket can thus have a relatively large inner diameter, which in turn is advantageous for the demand-compensating flows between the switch chamber and the intermediate chamber. A desired flow resistance can be suitably adjusted by a suitable choice of the size of the lateral opening of the pipe socket.

The heating medium flowing in through the associated heating circuit return connection into the intermediate chamber from the heating circuit with the higher heating medium temperature should preferably flow into the heating circuit supply connection for the heating circuit with the low heating medium temperature likewise assigned to the intermediate chamber. In order to support this desired flow, according to a further embodiment of the heating circuit distributor it is provided that in the intermediate chamber there is arranged an intermediate plate which subdivides this into an upper and lower chamber part, is permeable to the heating medium and represents a flow resistance. Hereby, a low flow resistance is achieved for the aforementioned desired flow, while for necessary occurring compensating flows the heating medium must flow through the flow resistance performing intermediate plate.

For ease of manufacture, the intermediate plate is preferably formed by a perforated plate. A desired flow resistance of the perforated plate can be determined simply by the density and / or the free cross-sectional size of the holes.

An additional or alternative technical measure for avoiding or limiting short circuit flows between the boiler flow connection and the boiler return connection through the switch chamber is that preferably one or more transversely arranged flow guide walls project from the partition wall on the underside and / or from the bottom wall on one side extend the height of the switch chamber. The free flow cross section of the switch chamber can thus be reduced to one or more locations to a desired level.

Preferably, it is further provided that the Strömungsleitwände extend a maximum of half the height of the switch chamber and seen in the longitudinal direction of the switch chamber spaced from each other in each case from the boiler flow connection or from the boiler return port. In this arrangement, the flow baffles advantageously shield the aperture (s) between the sipe chamber and the intermediate chamber from the heating medium flow from the boiler feed port to the flow chamber and from the heating medium flow from the return chamber to the boiler return port, but at the same time allow for any necessary counterbalancing flows.

Finally, it is provided for the heating circuit distributor according to the invention that at least one mounting sleeve for a temperature sensor on the housing, preferably in the region of the boiler flow connection, is arranged. In this way, one or more temperature sensors that receive temperature data for control of an associated heating system can be easily attached to the heating circuit manifold.

For the purpose of simple and cost-effective production, the heating circuit distributor according to the invention expediently consists of blanks made of sheet steel and of pipe sections which are welded together, wherein the pipe connections forming connecting pieces are expediently designed with prefabricated connecting threads for the simple connection of further-running pipelines.

As known per se, the heating circuit manifold may be equipped with a drain port and / or a sludge collection space and / or a magnetic separator and / or a vent valve, if needed.

Figur 1

einen Heizkreisverteiler in einer ersten Ausführung, mit offen dargestellter Vorderseite, in einer ersten perspektivischen Ansicht,

Figur 2

den Heizkreisverteiler aus Figur 1, wieder mit offenen dargestellter Vorderseite, in einer zweiten perspektivischen Ansicht,

Figur 3

den Heizkreisverteiler aus den Figuren 1 und 2 in einem ersten Betriebszustand, in schematischer Darstellung,

Figur 4

den Heizkreisverteiler in einem zweiten Betriebszustand, in schematischer Darstellung,

Figur 5

den Heizkreisverteiler in einem dritten Betriebszustand, in schematischer Darstellung,

Figur 6

den Heizkreisverteiler in einem vierten Betriebszustand, in schematischer Darstellung,

Figur 7

den Heizkreisverteiler in einer zweiten Ausführung, oben in der Figur in schematischer Ansicht und unten in der Figur in schematischer Draufsicht, und

Figur 8

den Heizkreisverteiler in einer dritten Ausführung, oben in der Figur in schematischer Ansicht und unten in der Figur in schematischer Draufsicht.

In the following, embodiments of the invention will be explained with reference to a drawing. The figures of the drawing show:

FIG. 1

a heating circuit distributor in a first embodiment, with the front side open, in a first perspective view,

FIG. 2

the heating circuit distributor FIG. 1 , again with open front side, in a second perspective view,

FIG. 3

the heating circuit distributor from the FIGS. 1 and 2 in a first operating state, in a schematic representation,

FIG. 4

the heating circuit distributor in a second operating state, in a schematic representation,

FIG. 5

the heating circuit manifold in a third operating state, in a schematic representation,

FIG. 6

the heating circuit distributor in a fourth operating state, in a schematic representation,

FIG. 7

the heating circuit manifold in a second embodiment, at the top in the figure in a schematic view and at the bottom in the figure in a schematic plan view, and

FIG. 8

the heating circuit manifold in a third embodiment, at the top in the figure in a schematic view and at the bottom in the figure in a schematic plan view.

In the various figures of the drawing, the same parts are always denoted by the same reference numerals, so that not every figure each reference numerals must be explained.

FIG. 1 The drawing shows a heating circuit manifold 1 in a first embodiment, with open front side shown, in a perspective view obliquely from the left front. The heating circuit manifold 1 has a horizontally oriented, elongated, flat parallelepiped housing 10, which is represented by a bottom wall 11, a top wall 12, a front wall 13, otherwise broken away here, only a small portion at the top left, a rear wall 14 and two end walls 15 and 15 'is formed. The individual walls are made of sheet steel, for example, and are tightly welded together.

Inside the housing 10, a partition wall 16 is arranged, which extends parallel to the bottom wall 11 and the top wall 12 between them. The space above the dividing wall 16 is subdivided into three chambers by two bulkhead walls 19, 19 'extending parallel to the end walls 15, 15', namely from right to left a feed chamber 2, an intermediate chamber 4 and a return chamber 3. Below the dividing wall 16 in the housing 10, a switch chamber 5 of the heating circuit manifold. 1

In the intermediate chamber 4, an intermediate plate 17, here in the form of a perforated plate, is arranged parallel to and at a distance from the dividing wall 16, dividing the intermediate chamber 4 into an upper chamber part 40 and a lower chamber part 40 '.

The partition 16 has in the present embodiment a total of four apertures 61, 62, 70 and 70 '. The opening 61 connects the switch chamber 5 near the end wall 15 with the flow chamber 2. The opening 62 connects the return chamber 3 near the other end wall 15 'with the switch chamber 5. The two openings 70 and 70' connect the intermediate chamber 4 and the switch chamber 5 with each other and are spaced apart in the longitudinal direction of the housing 10.

Each opening 70, 70 'is assigned on the underside each one arranged in the switch chamber 5 pipe socket 71, 71'. The in FIG. 1 left pipe socket 71 'has on its outward, that is, the end wall 15' facing side an opening 72 'to the switch chamber 5; in a corresponding, game-symmetrical arrangement of the pipe socket 71 has on its side facing the other end wall 15 an opening 72 'which in FIG. 1 is not visible.

In the turnout chamber 5, two flow guide walls 18, 18 'aligned transversely to the turnout chamber 5 are provided in the embodiment shown, each extending from the underside of the dividing wall 16 downwards over part of the height of the turnout chamber 5. As an alternative to the illustrated embodiment, one or both flow guide walls 18, 18 'may also be arranged on the upper side of the bottom wall 11.

On the outside of the top wall 12 of the housing 10 there are provided a total of four ports, namely from right to left, a first heating circuit flow connection 21, which is fluidly connected to the flow chamber 2, a first heating circuit return connection 42, which is fluidly connected to the intermediate chamber 4, a second Heating circuit flow connection 41, which is fluidly connected to the intermediate chamber 4, and a second heating circuit return connection 32, which is fluidly connected to the return chamber 3. On the above connections 21, 32, 41 and 42 further piping can be connected, which connect the heating circuit manifold 1 with heaters, which are not shown here.

On the underside of the bottom wall 11, two further connections are arranged, namely near the right end wall 15, a boiler flow connection 51 and near the left end wall 15 'a boiler return port 52. With the connections 51, 52 can be connected further pipelines that connect the heating circuit 1 with one or more boilers.

At the in FIG. 1 right end wall 15 is in the amount of the turnout chamber 5, a sleeve 80 is grown, which serves to receive a temperature sensor, which detects the flow temperature of the inflowing into the heating circuit manifold 1 heating medium.

As the FIG. 1 illustrated, here the boiler inlet port 51, the opening 61 and the heating circuit flow connection 21 are arranged in alignment with each other; Similarly, the boiler return port 52, the aperture 62 and the heating circuit return port 32 are aligned with each other. Also, the pipe socket 71, the aperture 70 and the heating circuit return port 42 have here aligned alignment, as well as the pipe socket 71 ', the opening 70' and the heating circuit flow connection 41st

FIG. 2 shows the heating circuit manifold 1 from FIG. 1 , again with open front, in a second perspective view obliquely from the right front. Unlike the FIG. 1 is now visible on the right pipe socket 71 whose facing the right end wall 15 opening 72. Regarding the further in FIG. 2 visible individual parts of the heating circuit 1 and the reference numerals drawn is to the previous description of FIG. 1 directed.

FIG. 3 the drawing shows the heating circuit manifold 1 from the FIGS. 1 and 2 in a first exemplary operating state, in a schematic representation. Through the boiler inlet port 51 heated heating medium, such as water flows at a temperature of here, for example, about 60 ° C in the heating circuit manifold 1 and through the turnout chamber 5 and the aperture 61 into the flow chamber 2 a.

With the heating circuit flow connection 21 and the heating circuit return connection 42, a first heating circuit is connected, for example, supplies radiators, which require a relatively high flow temperature of, for example, about 60 ° C for their operation. Via a circulation pump 91, the heating medium from the flow chamber 2 of the heating circuit manifold 1 through the heating circuit flow connection 21 through the first heating circuit is supplied. After delivery of heat from the heating medium in the radiators, not shown here, the heating medium flows with reduced Temperature from here, for example, about 45 ° C through the first heating circuit return connection 42 into the intermediate chamber 4 of the heating circuit manifold. 1

Through the intermediate chamber 4, the heating medium flows to the second heating circuit flow connection 41 and is conveyed from there by means of a second circulation pump 92 through a second heating circuit, which supplies, for example, a floor heating system here. The intermediate plate 17 forms a flow resistance for the heating medium, which ensures that in the intermediate chamber 4, the heating medium flows preferably from Heizkreisrücklaufanschluss 42 to Heizkreisvorlaufanschluss 41 and not the way through the intermediate plate 17, the pipe socket 71 'and the switch chamber 5 to the boiler return port 52nd takes.

The underfloor heating requires a lower flow temperature, for example, of about 45 ° C, which corresponds almost exactly to the return temperature of the first heating circuit. After flowing through the underfloor heating, the now again cooled heating medium flows with a further reduced temperature, here for example of about 35 ° C, through the second return port 32 in the return chamber 3. From the return chamber 3, the heating medium flows through the opening 62 and the switch chamber 5 in the Heizkesselrücklaufanschluss 52 and through this to the boiler not shown here for reheating, in order then again to be supplied through the boiler flow connection 51 to the heating circuit manifold 1.

In the in FIG. 3 shown operating state, both heating circuits have the same volume flow requirement of heating medium, so that balancing flows between the different circuits are not required. Rather, here the two heating circuits are flowed through in succession in a pure series connection of the heating medium. The thermal energy contained in the heating medium is optimally utilized in this way and the heating medium flows back into the return chamber 3 with an advantageously low temperature. Especially in connection with a condensing boiler as a boiler, this results in a special economical heating operation.

In the boiler circuit formed between the heating circuit manifold 1 and the boiler, not shown, it is expedient, as is customary, another circulation pump for conveying the heating medium provided.

The FIG. 4 shows the heating circuit manifold 1 in a second exemplary operating state, in the same schematic representation as in FIG. 3 , In the in FIG. 4 shown operating state of the first heating circuit for the radiator has about twice as large volume flow demand of heating medium as the second heating circuit with the floor heating. The volume flows through the two heating circuits are therefore no longer the same size. To compensate for these different volume flows in the two heating circuits, the integrated in the heating circuit manifold 1 hydraulic switch in the form of the switch chamber fifth

First, also heated by a boiler heating medium flows through the boiler flow connection 51, the switch chamber 5, the opening 61 and the flow chamber 2 and the heating circuit flow connection 21 in the first heating circuit, the radiator powered. The promotion of the heating medium by the first heating circuit causes here again the pump 91. The returning from the first heating medium heating medium flows at a reduced temperature through the heating circuit return port 42 into the intermediate chamber 4 of the heating circuit 1. A portion of the volume flow through the Heizkreisrücklaufanschluss 42 in the Intermediate four inflowing heating medium, here about half thereof, flows through the heating circuit flow connection 41 via a mixing valves 90 through the second pump 92 in the second heating circuit. Excess heating medium from the intermediate chamber four, which is not needed here for the second heating circuit, flows through the designed as a perforated plate intermediate plate 17 from the upper chamber portion 40 of the intermediate chamber 4 in the lower chamber part 40 '. From there, the excess heating medium flows through the pipe socket 71 'and its opening 72' in the left part of the switch chamber fifth

The heating medium flowing back from the second heating circuit for the underfloor heating flows through the heating circuit return connection 32 first into the return chamber 3 and from there through the opening 62 into the switch chamber 5, where the two partial volume flows reunite to form the total volume flow and together through the boiler return connection 52 are fed to the boiler for reheating.

In operation after FIG. 4 is advantageous to each heating circuit of the volume flow of heating medium just needed with the respective required flow temperature supplied; At the same time, the full volume flow of the heating medium is retained in the boiler circuit.

FIG. 5 shows the heating circuit manifold 1 in a third exemplary operating state, in the same schematic representation as in the Figures 3 and 4 , It is characteristic of this third operating state that now the first heating circuit with the radiators requires a lower volume flow of heating medium than the second heating circuit with the underfloor heating.

Here, too, heated heating medium flowing from the boiler flows through the boiler feed connection 51 into the switch chamber 5. In the switch chamber 5, the volume flow of the heating medium is divided into two partial volume flows. A first partial volume flow flows through the opening 61 and the flow chamber 2 via the first heating circuit flow connection 21 into the first heating circuit and is conveyed by the pump 91 through the latter.

A second partial volume flow of the heating medium flows first within the turnout chamber 5 in the direction of the pipe stub 71 and through the opening 72 into this and then up into the lower chamber part 40 'of the intermediate chamber 4. Further, this partial volume flow flows through the as a perforated plate executed intermediate plate 17 in the upper chamber portion 40 of the intermediate chamber 4 and unites there with the partial volume flow, which also flows from the first heating circuit through the heating circuit return port 42 in the upper chamber portion 40 of the intermediate chamber 4. Combined then form the two part-volume flows the full volume flow, which meets the higher demand of the second heating circuit of heating medium here. This full volume flow of heating medium flows through the heating circuit flow connection 41 and the mixing valve 90, while being conveyed by the pump 92 through the second heating circuit. By means of the mixing valve 90, the flow temperature of the second heating circuit in the flow direction behind the mixing valve 90 to a desired value, here about 45 ° C, adjusted to avoid too high flow temperature in the second heating circuit by supplying coming directly from the boiler heating medium. After flowing through the second heating circuit, the entire volume flow of the heating medium flows through the heating circuit return port 32 in the return chamber 3 and from there through the opening 62 and the left end of the turnout chamber 5 in the boiler return port 52 and then to reheat to the boiler.

FIG. 6 shows the heating circuit manifold 1 in a fourth exemplary operating state, again in the schematic representation of FIGS. 3 to 5 , Characteristic of this fourth operating state is that now both heating circuits have no need for heating medium, because just no heating power is needed. When the boiler is in operation, the heated heating medium flows through the boiler inlet connection 51 into the switch chamber 5. In the present case, the heating medium does not substantially leave the switch chamber 5, but flows through it over its entire length at the two pipe connections 71 and 71 'and at the flow guide walls A certain side stream of heating medium can parallel through the first pipe socket 71, the intermediate chamber 4 and the second pipe socket 71 'to flow to the left end of the switch chamber 5, then by the local boiler return port 52 directly to Return boiler. As a result, a clocking of the boiler is avoided and that shortcoming of a low water content of today's modern boiler compensated.

FIG. 7 The drawing shows the heating circuit manifold 1 in a second embodiment, at the top in the figure in a schematic view and at the bottom in the figure in a schematic plan view. In contrast to the embodiment described above, the heating circuit distributor 1 is after FIG. 7 designed for three heating circuits, so has at its top a total of three Heizkreisvorlaufanschlüsse 21, 41 and accordingly also three Heizkreisrücklaufanschlüsse 32, 42. A boiler inlet port 51 and a boiler return port 52 are also arranged here on the underside of the housing 10 of the heating manifold 1. The internal structure of the heating circuit manifold 1 according to FIG. 7 corresponds to the example described above. It is different that now two Heizkreisvorlaufanschlüsse 21 and to the intermediate chamber 4 now two Heizkreisrücklaufanschlüsse 42 are attached to the flow chamber 2. The two first, these connections associated heating circuits are thus flowed through in parallel by the heating medium and provide, for example, radiator with a high flow temperature of here, for example, about 60 ° C. The cooled to a temperature of, for example, about 45 ° C heating medium from the two first heating circuits passes through the two Heizkreisrücklaufanschlüsse 42 in the intermediate chamber 4 and from there via the Heizkreisvorlaufanschluss 41 in the third heating circuit, which is again a floor heating circuit, which requires a lower flow temperature , here about 45 ° C, has. This in the third heating circuit then cooled to about 35 ° C heating medium finally passes through the heating circuit return port 32 in the return chamber 3 and from this through the opening 62 and the boiler return port 52 back to the boiler, not shown here for reheating.

As the FIG. 7 illustrated, the terminals 21, 32, 41, 42 are mounted at equal intervals on the upper side of the heating circuit 1. Accordingly, the two bulkhead walls 19 and 19 ', on the one hand the flow chamber 2 and the intermediate chamber 4 and on the other hand, the intermediate chamber 4 and the return chamber 3 separate from each other, arranged offset from the first embodiment. The first bulkhead 19 now lies between the left heating circuit supply connection 21 and the right heating circuit return connection 42. The second bulkhead 19 'lies unchanged between the heating circuit supply connection 41 and the heating circuit return connection 32.

In normal operation, the two first heating circuits for the radiator are flowed through in parallel. These two heating circuits form a series circuit with the third heating circuit for underfloor heating. If the two first heating circuits for the radiator have a different volume flow requirement of heating medium, this can be adjusted by appropriate control of the respective associated circulation pump 91 and 92. If the two first heating circuits for the radiators in the sum should have a different demand for heating medium flow rate than the third heating circuit for underfloor heating, then takes place via the hydraulic switch function of the heating circuit 1 by means of a balance volume flow of heating medium through the switch chamber 5 a corresponding hydraulic compensation, as already described above, even if all heating circuits need no heating medium.

With regard to the further reference numbers in FIG. 7 Reference is made to the preceding description.

FIG. 8 Finally, the drawing shows the heating circuit distributor 1 in a third embodiment, again at the top in the figure in a schematic view and at the bottom in the figure in a schematic plan view. In this embodiment, the heating circuit manifold 1 is designed for the connection of a first heating circuit for radiators, a second heating circuit for underfloor heating and, new, a third heating circuit for a Water heaters. The internal structure of the heating circuit distributor 1 with the housing 10 and the chambers 2, 3, 4 and 5 provided therein corresponds in principle to the previous exemplary embodiments. Different is the arrangement of the bulkhead walls 19 and 19 ', because the in FIG. 8 left bulkhead 19 'is compared to for example after FIG. 7 Now moved to the right, namely in a position between the heating circuit flow connection 41 and the right of two Heizkreisrücklaufanschlüsse 32. Thus, the return chamber 3 is seen in the longitudinal direction of the housing 10 longer, while the intermediate chamber 4 is shortened here by the same amount.

In normal operation of the heating circuit 1 flows, for example heated to about 60 ° C heating medium again coming from a boiler through the boiler flow connection 51 into the switch chamber 5 and from this immediately further through the opening 61 in the flow chamber 2. There, the volume flow of the heating medium in two partial volume flows, which flow through the two Heizkreisvorlaufanschlüsse 21 in two different heating circuits, namely a heating circuit with radiators and a heating circuit with a water heater. The promotion of the heating medium through these two heating circuits is again by means of a respective circulation pump 91 and 92.

From the heating circuit with the radiators, the heating medium flows, cooled to a temperature of, for example, about 45 ° C, through the Heizkreisrücklaufanschluss 42 into the intermediate chamber 4. In the water heater, the heating medium of its flow temperature is further cooled than in the heating circuit with the radiators, here, for example a temperature of about 35 ° C, and is therefore not supplied to the intermediate chamber 4 via the heating circuit return connection 32, but directly to the return chamber 3.

The heating circuit for underfloor heating is supplied via the heating circuit flow connection 41 with heating medium from the intermediate chamber 4, wherein the circulation is effected here by means of the pump 93. About the mixing valve 90, the flow of the underfloor heating medium from the return can be mixed if necessary. The heating medium returning from this heating circuit also passes through the second heating circuit return connection 32 into the return chamber 3. There, the partial volume flows of the heating medium are combined again to the full volume flow and this is then through the opening 62, through the left end the switch chamber 5 and the boiler return port 52 are fed to the boiler for reheating.

In this embodiment of the heating circuit manifold 1, the volume flow differences by means of the hydraulic function of the switch chamber 5 of the heating circuit 1 are compensated in the case of varying or fluctuating volume flow demand of heating medium in the various heating circuits by compensating volume flows of the heating medium are passed through the switch chamber 5. This also applies here in the extreme case that none of the heating circuits has a need for heating medium.

With regard to the further reference numbers in FIG. 8 Reference is made to the preceding description.

LIST OF REFERENCE NUMBERS

character description 1 heating circuit 10 casing 11 bottom wall 12 top wall 13 front wall 14 rear wall 15, 15 ' end walls 16 partition wall 17 intermediate plate 18, 18 ' flow guide 19, 19 ' bulkheads 2 lead chamber 21 Heating circuit supply connection to 2 3 Return chamber 32 Heating circuit return connection to 3 4 intermediate chamber 40, 40 ' Upper, lower chamber part of 4 41 Heating circuit flow connection to 4 42 Heating circuit return connection to 4 5 soft chamber 51 Boiler supply connection to 5 52 Boiler return connection to 5 61 Breakthrough in 16 between 5 and 2 62 Breakthrough in 16 between 3 and 5 70, 70 ' Breakthroughs in 16 between 5 and 4 71, 71 ' pipe socket 72, 72 ' Opening in 71, 71 ' 80 Temperature sensor sleeve 90 mixing valve 91, 92, 93 pump

Claims (14)

Heating circuit distributor (1) with integrated hydraulic separator, with an elongated, horizontally arranged in operation housing (10) in which a flow chamber (2) high heating medium temperature and a return chamber (3) low heating medium temperature and one of these two chambers (2, 3) fluidly connecting soft chamber (5) are arranged, wherein on the housing (10) on the one hand several Heizkreisvorlaufanschlüsse (21, 41) and a plurality Heizkreisrücklaufanschlüsse (32, 42) and on the other hand each a boiler supply port (51) and the boiler return port (52) are provided, wherein the boiler flow connection (51) and the boiler return port (52) into the switch chamber (5) open and wherein the switch chamber (5) at two horizontally spaced locations on the one hand with the flow chamber (2) and on the other hand with the return chamber (3) is fluidly connected
characterized, - That in addition to the flow chamber (2) high heating medium temperature and the return chamber (3) low heating medium temperature, an intermediate chamber (4) average heating medium temperature in the housing (10) is arranged, that at least one heating circuit flow connection (21) of a heating circuit having a high heating medium flow temperature is connected to the flow chamber (2) of high heating medium temperature, - that at least one Heizkreisrücklaufanschluss (42) of a heating circuit of a heating medium Heizmediumvorlauftemperatur Heizmediumrücklauftemperatur medium and at least one Heizkreisvorlaufanschluss (41) are connected to the intermediate chamber (4), - That at least one heating circuit return connection (32) of a heating circuit with low heating medium return temperature is connected to the return chamber (3) low heating medium temperature and - That the intermediate chamber (4) and the switch chamber (5) via at least one connection within the housing (10) are fluidly connected to each other. Heating circuit distributor according to claim 1, characterized in that the flow chamber (2), the return chamber (3) and the intermediate chamber (4) are arranged in an upper part of the housing (10) and that the switch chamber (5) underneath in a lower part of the Housing (10) is arranged. Heating circuit distributor according to claim 2, characterized in that the housing (10) has a partition wall (16) which delimits the flow chamber (2), the return chamber (3) and the intermediate chamber (4) on the underside and the switch chamber (5) on the upper side and which at least three openings (61, 62, 70, 70 ') for producing the flow connections between the switch chamber (5) on the one hand and the flow chamber (2), the return chamber (3) and the intermediate chamber (4) on the other. Heating circuit distributor according to one of claims 1 to 3, characterized in that in the longitudinal direction of the housing (10) seen the flow chamber (2) and the return chamber (3) end face in the housing (10) are arranged and that the intermediate chamber (4) via the remaining middle part of the length of the housing (10) between the flow chamber (2) and the return chamber (3) extends. Heating circuit manifold according to one of claims 1 to 4, characterized in that the boiler flow connection (51) and the boiler return port (52) on the underside and the Heizkreisvorlaufanschlüsse (21, 41) and Heizkreisrücklaufanschlüsse (32, 42) are arranged on the upper side of the housing (10). Heating circuit distributor according to claims 3 and 5, characterized in that the boiler feed connection (51), the at least one of the flow chamber (2) connected Heizkreisvorlaufanschluss (31) and the associated aperture (61) in the partition wall (16) are aligned with each other and that the boiler return port (52), the at least one with the return chamber (3) connected Heizkreisrücklaufanschluss (32) and the associated opening (62) in the partition wall (16) are arranged in alignment with each other. Heating circuit distributor according to one of claims 1 to 6, characterized in that the intermediate chamber (4) and the switch chamber (5) via two in the longitudinal direction of the housing (10) spaced apart openings (70, 70 ') in the partition (16) with each other in terms of flow are connected. Heating circuit distributor according to claim 7, characterized in that connected to the intermediate chamber (4) at least one Heizkreisrücklaufanschluss (42) and at least one Heizkreisvorlaufanschluss (41) in each case in alignment with one of the openings (70, 70 ') in the partition (16) between the switch chamber (5) and intermediate chamber (4) are arranged. Heating circuit distributor according to claim 7 or 8, characterized in that the two openings (70, 70 ') each one over the height of the turnout chamber (5) extending pipe socket (71) is associated with at least one lateral opening (72), wherein the opening (72) in each case to the nearest boiler connection (51, 52) points. Heating circuit distributor according to one of claims 1 to 9, characterized in that in the intermediate chamber (4) one in an upper and lower chamber part (40, 40 ') dividing, permeable to the heating medium and for this a flow resistance performing intermediate plate (17) is. Heating circuit distributor according to claim 10, characterized in that the intermediate plate (17) is formed by a perforated plate. Heating circuit distributor according to one of claims 3 to 11, characterized in that from the partition wall (16) on the underside and / or from the bottom wall (11) one or more transversely arranged Strömungsleitwände (18, 18 ') emanating from the bottom wall (11), extending over part of Extend the height of the switch chamber. Heizkreisverteiler according to claim 12, characterized in that the Strömungsleitwände (18, 18 ') extend over a maximum of half the height of the switch chamber (5) and seen in the longitudinal direction of the switch chamber (5) spaced from each other in each case from the boiler flow connection (51) or from Boiler return connection (52) are located. Heating circuit distributor according to one of claims 1 to 13, characterized in that at least one mounting sleeve (80) for a temperature sensor on the housing (10), preferably in the region of the boiler flow connection (51), is arranged.

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