EP1586808A2 - Pipeline network and distribution system - Google Patents

Abstract

Pipe network and distribution system comprises several network- or grid-like air-distribution pipes (1) and a pipeline arrangement (2) guided in the air-distribution pipes. The air-distribution pipes and the pipeline arrangement each have several supply connections (4), several distribution nodes (3), and at least one feed node (5). The pipeline arrangement is mounted in the air-distribution pipes so that it can freely move in at least one direction and is fixed in the supply connections and the feed node. An independent claim is also included for a distribution node especially for the above pipe network and distribution system.

Description

The invention relates to a pipe network and distribution system with several, for example network or grid-shaped arranged air distribution pipes and with a Pipe arrangement, in particular for the supply of heating and / or cooling devices in buildings, which is guided in the Luftverteilrohren, wherein the Air distribution pipes and the piping arrangement each have multiple supply connections, several distribution nodes and in each case at least one feed node exhibit. Furthermore, the invention relates to a distribution node for a such system.

For indoor air and climate systems for buildings, it has in particular from installation-technical and thermodynamic reasons proved to be advantageous Pipe networks for heating and / or air conditioning technology within an air distribution sewer system respectively. Such indoor air and climate systems are becoming common as well as the running therein primary piping network network or lattice-shaped, so that these together create a multifunctional supply network form. This can be connected via supply connections room air and air conditioning technology to be supplied terminals to be connected. The room air and air conditioning supply takes place via feed-in nodes of the multifunctional supply network, the feed-in nodes can be connected to a supply shaft of the building. The individual elements of the multifunctional supply network are included interconnected via distribution nodes. The individual pipe sections of the system are at the stationary in buildings positioned supply terminals and feeding node firmly fixed. Most are the pipe sections also fixed in the distribution node, allowing movements within the pipe network and distribution system are largely prevented.

Especially in the field of heating and air conditioning are such Pipe network and supply systems for temperature ranges of the carrier medium, For example, water or a water-glycol mixture, from 5 ° C to about 90 ° C or above. Due to the temperature fluctuations of the carrier medium, it can therefore be dependent on the coefficient of thermal expansion the pipe material used and the length of the pipe network strand come to length variations, which in a rigid connection the pipe network on or with a support structure, such as Building parts, make appropriate compensation measures required.

To compensate for such variations in length of the pipe network Kompensatorelemente known in the area of the pipe network usually in each distribution node be arranged so that the length variations occurring can be balanced or recorded. As compensator elements For example, hoses made of stainless steel corrugated pipe with axial and possibly also used lateral flexibility. The use of such bellows compensators However, due to the large number of required Screw or press connections for connection to the pipe network a high Material and assembly costs with it, with potential sources of occurrence from leaks or connection errors arise, causing direct or consequential damage.

Alternatively, it is known that due to temperature fluctuations occurring changes in length of the pipe network by compensation bends, i. U-shaped pipe runs formed in the course of the pipe network are to record. However, such compensation sheets must be carefully be calculated and placed, eliminating the hassle of planning and assembly of the pipe network is increased. Especially with smaller pipe networks is partially refrains from providing compensatory measures if that Pipe network undergoes various geometric levels, which already in itself represent a compensation arc. However, this often leads to an undesirable Noise development or the like. At a temperature change of Carrier medium.

Object of the present invention is in contrast, a pipe network and distribution system and to provide a distribution node therefor, in which the incorporation of compensation elements are largely dispensed with can and also the assembly of the entire pipe network and distribution system is greatly facilitated.

This object is achieved according to the invention with a pipe network and distribution system of the type mentioned solved in that the pipe assembly in the air distribution tubes and the distribution node in at least one direction free is movably mounted and in the supply connections and the at least a feed-in node is fixed. The piping arrangement is thus movable with the upstream air supply network, i. the air distribution pipes, connected so that expansions of the piping arrangement as a result of Temperature fluctuations a movement of the piping arrangement within allows the distribution node. Due to the system-typical design criteria the air distribution pipes, which flow mainly to the air volume Orientieren, the Luftverteilrohre are dimensioned such that the maximum Required freedom of movement with a thermal expansion of the pipelines can be absorbed in the air distribution pipes. So is the Linear expansion of a copper pipe with a temperature fluctuation around 85 ° C and at a length of 25 m about 34 mm. A typical diameter the Luftverteilrohre is about at least 100 mm, so that the thermal expansions can be easily absorbed in the air distribution pipes.

Preferably, the piping arrangement in the air distribution pipes and the Distributor node stored in a plane freely movable while in the supply connections and the at least one feed node stationary is fixed. Additionally or alternatively, the piping in the Air distribution tubes and the distribution node freely rotatable about at least one axis be stored and in the supply connections and the at least be fixed in rotation with a feed node. In this embodiment of the invention Pipe network and distribution system can by different Longitudinal expansion of the pipe assembly occurring movements occur without provided in the distribution node compensation elements have to be.

To facilitate the assembly of the piping and distribution system, it is proposed that the piping arrangement in at least one air distribution pipe and / or in at least one distribution node with at least one elastic Element is held in a mounting position from which the pipes against shift the restoring force of the at least one elastic element and / or are rotatable. To position the pipelines accurately in a suspension or mounting structure to hold and then in case of temperature fluctuations within the expected operating conditions the greatest possible range of movement on all sides To ensure, for example, the pipelines by springs fixed in a selected mounting position. The positioning takes place such that the occurring variations in length against the force of the spring or the like can be included.

Alternatively, the positioning is such that the manifold block for the Mounting process restricted mobility in the pipe network and distribution system is attached. The limitation here is that the range of motion for the assembly process compared to the overall range of motion insofar is dimensioned smaller that even with full utilization of the installation margin remaining range of motion in any case sufficient to compensate for the changes in length due to temperature fluctuations.

An inventive distribution node, for example, for use in the pipe network and distribution system described above, has a Housing on that with several openings for connection of air distribution pipes is provided. In this case, a piping arrangement fastened on a distributor block, the at least one first supply pipe and at least a branching off second supply pipe and at least a branching from the first or second supply pipe connecting pipe consists, on a fixable mounting plate or the like. Of Housing slidably mounted. In this way, the distribution block within of the distribution node to perform move by moving Length changes of the piping arrangement as a result of temperature fluctuations be caused.

The distributor block may according to a preferred embodiment of the invention be configured so that the pipe assembly him at least partially penetrates. In other words, the manifold block can have multiple through holes have, in which the piping arrangement runs or the Through holes themselves can be part of the piping arrangement.

If the holding plate has a recess through which a in the Recess sliding fastener extending, which the manifold block provided with a on the opposite side of the retaining plate Locking plate connects, the distribution block can within the Distribution node in a defined area to be moved.

The fastening element is preferably a guide pin whose Dimensions in the plane of the holding plate smaller than that of the recess are. The displacement of the manifold block within the distribution node becomes thus limited by the fact that the guide pin to the edge of the recess abuts. To ensure a uniform displacement of the holding block in all To enable directions, the recess is preferably a round recess in the holding plate.

An uncontrolled movement of the distribution block within the distribution node This can be avoided by reducing the dimensions of the locking disc in a plane parallel to the holding plate are larger than the dimensions the recess. The locking disc thus covers plate-like the recess in the retaining plate and can together with the guide pin and the distributor block are displaced relative to the holding plate.

To facilitate assembly of the manifold within the manifold node, can be an elastic between the plate and the manifold block Element, such as a positioning spring, and / or a severable Fixing element, such as a positioning, be provided. If the positioning pin also guided in a recess of the holding plate, the larger is the dimension of the positioning pin, but smaller than the recess for the sliding fastener, one arises for the assembly process by the dimension of this recess limited range of motion. The limitation of the range of motion is thereby canceled, that the positioning spring or the positioning pin are designed in such a way that at a change in length within the piping arrangement for example, as a result of temperature fluctuations of the manifold within of the distribution node against the force of the elastic element or after Cutting the positioning pin can be moved. When using of one or more positioning pins is therefore particularly in the Material selection and dimensioning to ensure that the occurring Length variations of the tubes, the shear forces are sufficient to safely break off the positioning pin (s) and thus their fixing function to eliminate.

The ratio of the dimensions of the recesses for the sliding Fastener and the positioning pin is set so that the dimension the recess for the positioning pin all sides in a plane Movement clearance of the distributor block for the assembly process in optimal Way determined, these are, for example, about 2 to 3 cm. At the same time the dimension the recess for the displaceable fastener chosen so that with full utilization of the range of motion for the assembly process in one direction there is still sufficient room for maneuver remains in the same direction to the length changes due to compensate for temperature fluctuations.

Since the pipes of the piping arrangement in the distribution node and in the Air distribution pipes are slidably mounted and to feed nodes or on Terminals a fixed connection of these tubes is required, the As a result of thermal expansion occurring length variations of the tubes between the distribution nodes and the supply terminals for terminals or the feed-in node are compensated or excluded. This is According to the invention provided that the housing of the distribution node openings or areas openable via predetermined breaking points for carrying out e.g. at least a flexible stainless steel corrugated tube has.

The length variations of the tubes are thus not in each distribution node, in which the tubes are slidable over the manifold block, but on the way between the distribution nodes and the supply connections or the Einspeisknoten via flexible compensation elements, in particular a stainless steel corrugated hose, added. The number of required Compensating elements is thus reduced to a minimum, whereby the Installation of a pipe network and distribution system is greatly simplified.

So can the number of flexible connections within a Pipe network and distribution system according to the invention compared to a conventional System can be reduced by at least 30% to over 70%. Alternatively to the provision of, for example, flexible stainless steel corrugated hoses between the distribution nodes and supply connections or supply nodes can also be the intermediate pipe area as a length expansions receiving compensation arc are designed.

To connect a terminal for temperature control of rooms is usually a supply and a return line for the heated or cooled Carrier medium provided. It is therefore preferred if the piping arrangement of the distribution node, a pair of first supply pipes and a pair thereof branching second supply pipes and at least one pair Connecting pipes, which from the first or second pair of supply pipes branch.

Other objects, advantages and applications of the present invention result from the following description of exemplary embodiments and the drawing. All are described and / or illustrated features shown by themselves or in any combination the object the invention, regardless of their summary in individual claims or their relationship.

Fig. 1

den Aufbau eines erfindungsgemäßen Rohrnetz- und Verteilsystems,

Fig. 2

in vergrößerter Darstellung einen Verteilerknoten des Rohrnetz- und Verteilsystems nach Fig. 1,

Fig. 3a

in vergrößerter Darstellung den Verteilerknoten nach Fig. 2,

Fig. 3b

den Verteilerknoten nach Fig. 3a bei veränderter Temperatur

Fig. 4

in vergrößerter Darstellung eine Draufsicht auf einen Verteilerknoten,

Fig. 5

eine Schnittansicht durch den Verteilerknoten nach Fig. 4 gesehen in Richtung des Pfeils V in Fig. 4,

Fig. 6

eine Schnittansicht durch den Verteilerknoten nach Fig. 4 gesehen in Richtung des Pfeils VI in Fig. 4 und

Fig. 7

eine Schnittansicht durch den Verteilerknoten gemäß Fig. 6 nach einer weiteren Ausführungsform der Erfindung.

They show schematically:

Fig. 1

the structure of a pipe network and distribution system according to the invention,

Fig. 2

in an enlarged view of a distribution node of the pipe network and distribution system of FIG. 1,

Fig. 3a

in an enlarged view of the distribution node of FIG. 2,

Fig. 3b

the distribution node of Fig. 3a at a different temperature

Fig. 4

in an enlarged view a plan view of a distribution node,

Fig. 5

4 is a sectional view through the distribution node according to FIG. 4 as seen in the direction of the arrow V in FIG. 4,

Fig. 6

a sectional view through the distribution node of FIG. 4 seen in the direction of the arrow VI in Fig. 4 and

Fig. 7

a sectional view through the distribution node of FIG. 6 according to another embodiment of the invention.

In Fig. 1, a pipe network and distribution system is shown, which consists of several grid-shaped arranged air distribution pipes 1 and a recorded therein Pipe assembly 2 is formed. The piping arrangement 2 is shown in FIG. 1 only in the middle of the running in the figure from top to bottom Air pipes shown. The air distribution pipes 1 and the pipe assembly 2 are connected to each other via distribution node 3.

The pipe network and distribution system has several supply connections 4, with which not shown terminals of the heating and / or air conditioning technology be supplied to a carrier medium. The supply connections 4 are included Fixedly attached to the terminals, usually in rooms of a building are fixed. The introduction of the carrier medium into the pipe network and Distribution system can be done via a feed-in node 5, which in the shown Embodiment assigned to a distribution node 3.

The supply can be done in the same way by direct connection of the pipe network and Distributed system to a supply shaft 6, as shown in Fig. 1 is shown by way of example for the air distribution pipes 1. The feed accounts 5 as well the supply shaft 6 are also stationary in a building or Like. Arranged.

The distributor node 3 shown enlarged in FIG. 2 has a housing 7, in FIG which three air distribution pipes 1 open. In the in the figure from above to Downstream Luftverteilrohr 1 is a pair of first supply pipes 8 a and 8b, while in the in the figure from right to left running Air distribution pipes 1 a pair of second supply pipes 9 a and 9 b provided are. The supply straws 8a and 9a can thereby the flow pipes for with Supply connection 4 connectable terminals, for example radiators, form while the supply pipes 8b and 9b form the return pipes. Out The housing 7 of the distribution node 3 branches two flexible stainless steel corrugated hoses 10, over which the supply pipes 8a, 8b, 9a and 9b with the Supply connection 4 are connected via lines.

To connect the corrugated tubes 10 with the supply pipes branch from from these connection pipes. As can be seen in particular from FIGS. 4 to 6, has the supply pipe 8a, which is connected to the supply pipe 9a is, two connection pipes 11a and 12a, the ends of which for connection with a corrugated hose 10 or a sealing plug or the like. Formed are. In the same way is the supply pipe 8b, which with the supply pipe 9b is connected, equipped with two connecting pipes 11 b and 12 b. The supply pipes and the connecting pipes in this case form only those in FIG schematically indicated piping arrangement. 2

This piping arrangement 2 is accommodated in a distributor block 13, wherein the supply pipes and the connection pipes the distribution block 13th partially penetrate. The distributor block rests on a holding plate 14 which by means of a screw 15 with the housing 7 is connectable. In the distribution block 13, a guide pin 16 is screwed in, by a circular Opening 17 in the holding plate 14 projects and on the manifold block thirteenth opposite side of the holding plate 14 with a circular locking disc 18 is connected. The distributor block 13 can thus be shared with the pipe assembly 2 relative to the housing 7 and the holding plate fourteenth move, wherein the guide pin 16 in the recess 17 of the holding plate 14 can slide. A lifting of the manifold block 13 with the piping arrangement 2 of the support plate 14 is thereby avoided that the Arretierungsscheibe 18, whose diameter is greater than that of the recess 17th is on the support plate resting on the guide pin 16 is connected.

By this displaceable mounting of the manifold block 13 on the holding plate 14 can change the length of supply pipes within the pipe network and Be balanced distribution system. Thus, in Fig. 3a is a position of the Distributor block 13 shown within the distribution node 3, in which the supply pipes 8a and 8b are expanded due to a temperature increase to have. In contrast, Fig. 3b shows the position of the manifold block 13 within the Distribution node 3, if in the supply pipes, a cooled medium flows. The supply pipes 8a and 8b have therefore been compared in Fig. 3b shortened to the illustration of Fig. 3a, so that the entire manifold block 13th with the supply pipes 9a and 9b connected thereto in the figure was moved down. This sliding movement can through the corrugated hoses 10, which are connected to the connecting pipes 12a and 12b, respectively become. The tube assembly 2 can thus relative to a fixedly arranged supply connection 4 move, which with the flexible Corrugated hoses 10 is connected.

To the distribution block 13 during assembly in a predetermined position to be able to fix, a spring 19 shown in Fig. 4 is provided, which is the Manifold 13 on the holding plate 14 holds. A shift of the manifold block However, 13 is against the force of the spring 19 at a thermal expansion the supply pipes possible.

In Fig. 7 shows a further embodiment of the invention is shown in which to facilitate assembly of the manifold block 13 in addition to the spring 19th slidably connected by a positioning pin 20 with the holding plate 14. The positioning pin 20 is for this purpose firmly connected to the manifold block 13 and protrudes with one end through a further recess 21 in the holding plate 14th This further recess 21 in the holding plate 14 has a larger diameter as the positioning pin 20 so that the distribution block 13 is limited can move through the positioning pin 20 relative to the holding plate 14. Even at full utilization of the by the positioning pin 20 and the further recess 21 defined mounting margin is the remaining range of motion sufficiently large to change the length of the tubes due to Compensate for temperature fluctuations. By suitable choice of material and / or dimensioning of the positioning pin 20 can be achieved that this is sheared off at great length variations of the tubes to the To ensure mobility of the manifold block 13 relative to the support plate 14.

LIST OF REFERENCE NUMBERS

1

Luftverteilrohr

2

Piping arrangement

3

distribution node

4

supply terminal

5

feed-in

6

accommodation shaft

7

casing

8a, 8b

supply pipes

9a, 9b

supply pipes

10

corrugated hose

11a, 11b

connecting pipes

12a, 12b

connecting pipes

13

distribution block

14

Retaining plate

15

screw

16

guide pins

17

recess

18

locking disk

19

positioning spring

20

positioning

21

recess

Claims (12)

Pipe network and distribution system with a plurality of, for example, network or lattice air distribution pipes arranged (1) and with a pipe arrangement (2, 8a, 8b, 9a, 9b), in particular for the supply of heating and / or cooling devices in buildings, in the air distribution pipes (1) is guided, wherein the Luftverteilrohre (1) and the pipe assembly (2, 8a, 8b, 9a, 9b) each have a plurality of supply terminals (4), a plurality of distribution nodes (3) and in each case at least one feed node (5), characterized in that the pipeline arrangement (2, 8a, 8b, 9a, 9b) is freely movably mounted in the air distribution pipes (1) and the distribution node (3) in at least one direction and is arranged in the supply connections (4) and the at least one supply node (5). are fixed. Pipe network and distribution system according to claim 1, characterized in that the pipe arrangement (2, 8a, 8b, 9a, 9b) in the air distribution pipes (1) and the distribution node (3) are mounted freely movable in a plane and in the supply terminals (4 ) and the at least one feed node (5) are fixed in place. Pipe network and distribution system according to claim 1 or 2, characterized in that the pipe arrangement (2, 8a, 8b, 9a, 9b) in the air distribution pipes (1) and the distribution node (3) are freely rotatably mounted about at least one axis and in the Supply terminals (4) and the at least one feed node (5) are fixed against rotation. Pipe network and distribution system according to one of claims 1 to 3, characterized in that the pipe arrangement (2, 8a, 8b, 9a, 9b) in at least one air distribution pipe (1) and / or in at least one distribution node (3) with at least one elastic Element (19) are held in a mounting position, from which the pipe assembly (2, 8a, 8b, 9a, 9b) against the restoring force of the at least one elastic element (19) are displaceable and / or rotatable. Distribution hub, in particular for a pipeline network and distribution system according to one of the preceding claims, comprising a housing (7) which has a plurality of openings for connecting air distribution pipes (1), characterized by a pipe arrangement (2) fastened on a distribution block (13) of at least a first supply pipe (8a, 8b) and at least one second supply pipe (9a, 9b) branching off therefrom and at least one connection pipe (11a, 11b, 12a, 12b) branching off from the first or second supply pipe (8a, 8b, 9a, 9b) , wherein the distributor block (13) is displaceably mounted on a fixable mounting plate (14) or the like of the housing (7). Distribution hub according to claim 5, characterized in that the pipeline arrangement (2) at least partially penetrates the distributor block (13). Distribution hub according to one of claims 5 or 6, characterized in that the holding plate (14) has a recess (17) through which a in the recess (17) displaceable fastener (16) which extends the manifold block (13) with a on the distributor block (13) opposite side of the holding plate (14) provided locking disc (18) connects. Distribution hub according to claim 7, characterized in that the fastening element is a guide pin (16) whose dimensions in the plane of the holding plate (14) are smaller than that of the recess (17). Distribution hub according to one of claims 7 or 8, characterized in that the dimensions of the locking disc (18) in a plane parallel to the holding plate (14) are greater than the dimensions of the recess (17). Distribution hub according to one of claims 5 to 9, characterized in that between the holding plate (14) and the distributor block (13) an elastic element, in particular a positioning spring (), and / or a separable fixing element is provided. Distribution hub according to one of claims 5 to 10, characterized in that the housing (7) openings () or via predetermined breaking points openable areas for carrying out, for example, at least one flexible stainless steel corrugated hose (10). Distribution hub according to one of Claims 5 to 11, characterized in that the pipeline arrangement (2) has a pair of first supply pipes (8a, 8b) and a pair of second supply pipes (9a, 9b) branching off from it and at least one pair of connection pipes (11a, 11b, 12a, 12b) branching from the first or second pair of supply pipes (8a, 8b, 9a, 9b).

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