DE202010016759U1 - System for connection and fire-resistant, smoke-tight sealing of pipes and pipe systems - Google Patents

Abstract

System for connection and fire-resistant, smoke-tight sealing of pipes and pipe systems, in particular for the universal connection of non-combustible or combustible and combinations of non-combustible with combustible pipes, the system (l) a clamping connector (a) for axial connection with at least one tube and a with the clamping connector (a) in an operative relationship standing fire protection sleeve (s) with means (c) for obtaining a pipe closure under heat, characterized in that the clamping connector (a) the fire protection collar (s) connects, the one with the clamping connector (A) surrounding the combustible pipe (h), wherein the two juxtaposed components (a, e) are fixedly connected to each other and the means (c) for effecting a pipe closure under heat at least partially in the fire protection sleeve (e) are arranged.

Description

The invention relates to a system for connection and fire-resistant, smoke-tight foreclosure of pipes and pipe systems, in particular in the implementation by raumabschließende components according to the preamble of claim 1.

These are in particular a fire protection system especially for non-combustible pipes, combustible pipes and combination of non-combustible pipes with flammable pipes, preferably for drainage technology. The fire protection partitioning is required in the building codes. When pipes pass through walls or ceilings, they must be sealed so that for a certain period of time neither fire nor smoke can be transferred from one section to the next section. In so-called open systems such as house drainage pipes hot flue gases can penetrate into the pipes and thus traverse the space-enclosing component. Especially when connecting flammable pipes to a non-combustible casing, the closure of the non-combustible pipe is a prerequisite for continuous fire protection.

• • Temperaturweiterleitung verursacht durch das Rohr,
• • hochtemperierte Rauchgase, die in das Rohrsystem gelangen, verursachen im offenen System hohe Oberflächentemperaturen im Flammen abgewandten Raum.

The partitioning of non-combustible pipes by raumabschließende components is produced by different measures. For closed pipe systems, sheathing is sufficient. The demand at EU level for the sealing of pipes for domestic drainage can no longer be achieved by simple sheathing. At the national level, there is also the realization that the combination of combustible and non-combustible pipes creates a potential hazard. The piping system is classified as an open pipe system by the venting of the system and the road channel. When carrying out by raumabschließende components have the following problems:

• • temperature transfer caused by the pipe,
• • High-temperature flue gases that enter the pipe system cause high surface temperatures in the open space of the system away from the flames.

Same disadvantages are to be expected in the transition from combustible to non-combustible pipes or vice versa. The fugitive pipe at a junction creates an opening in the pipe through which hot flue gases can pass, causing temperatures on other floors to reach inadmissible levels.

Spannverbinder for axial connection of two pipes are already known and z. B. in the DE 200 15928 U1 described. Fire protection sleeves for closing pipe penetrations of flammable pipes through ceilings and walls are also known. These cuffs are placed under the blanket around the pipe and attached to the ceiling underside. Also half-embedded in the ceiling pipe sleeves or fully sunk fire sleeves are already known ( DE 202 14 256 U1 ). The fire protection sleeves contain a material which changes its volume when exposed to heat in such a way that the opening created by the melting-away pipe is closed. The fire protection collar is thereby attached to the ceiling or wall frictionally.

From the DE 10 2006 057 550 A1 a fire protection device or fire protection arrangement is known which comprises a socket or sleeve-like base body as part of a non-combustible tube, wherein provided within the body depressions are filled with intumescent material.

From the DE 10 2006 026 190 A1 a component is known, which consists of two connectors with an intermediate piece of a combustible tube, which is surrounded by flaring in case of fire material under a continuous sheet metal cover.

Furthermore, from the DE 101 26 998 A1 , a device for passing installation elements through ceilings and walls known.

A disadvantage of the o. G. Components, devices or arrangements is that in case of fire by the function of the line as a drain pipe, a closure of the line is not sure to make. If water reaches the pipe system above the fire, the seal will be damaged or removed by the water flowing out. The tube is no longer sealed, a Abschschende effect is no longer given. Another disadvantage of these systems is that high temperatures are necessary to cause closure.

Another disadvantage is also that with line sections that must serve to maintain functionality, so even in case of fire must work, a closure of the water-bearing pipe is not desirable. The present invention is intended to overcome these disadvantages.

The object of the invention is therefore to remedy the situation by a system which closes the pipe in case of fire and prevents hot flue gases from entering the pipe through openings.

This problem is solved by the features of claim 1.

Further advantageous features and modifications of the invention will become apparent from the other claims, the description and the accompanying drawings.

The system according to the invention can preferably also be used where connections to the open system have to be made. The system is also suitable for connecting flammable pipes and non-combustible pipes so that in case of fire the connection is interrupted and sealed in the pipe cross-section. This creates a transition from non-combustible to flammable pipelines, which can be independent of the type of installation and installation situation.

Accordingly, the invention consists of a system for connection and fire-resistant, smoke-tight foreclosure of pipes and pipe systems, in particular for universal connection of non-combustible or combustible and combinations of non-combustible with combustible pipes, the system having a clamping connector for the axial connection of two pipes and one with the Clamping connector in a context of action comprises fire protection sleeve. The fire sleeve closes according to the invention axially directly to the clamping connector, wherein the two juxtaposed components are firmly connected. This connection can take place either via connecting straps or via a common fixed housing, preferably a metal jacket enclosing the two components. The walls of the aforementioned components clamping connector, fire protection sleeve and / or common housing can also be made particularly reinforced in order to allow a change in direction within the component. The pipe arranged in the housing can also be designed as a pipe bend. The fire sleeve surrounds a pipe connected to the clamping connector. The system is installed in the pipeline to the connection of the "open" part of the pipe system and closes it in case of fire.

Another possibility of installation is the direct installation in a raumabschließenden component. The thermal decoupling in the component itself creates the possibility, especially for components of small dimensions or lightweight components, to produce low temperatures on the side away from the fire.

A particular advantage of this invention is that directly after the clamping connector designed as a metallic metal jacket fire protection sleeve is arranged, which is firmly connected to the clamping connector, but allows the lowest possible heat transfer through the connection. This sheet-metal jacket is shaped such that a building material which foams in the event of fire (eg intumescent material) is arranged within the molding to the tube. The inserted at this end in the connector pipe is preferably a combustible tube.

The prestressed connector and the building material which foams in the event of fire may be integrated in one component or consist of several components arranged next to one another. The component for the foaming in case of fire building material may be closed or open on one or more sides and provided with a tensioning device or other closure option. It can also be provided several clamping devices. The common housing can be angled or straight or executed as another molding.

According to a particular embodiment of the invention, flammable intumescent material can be arranged both inside the shell and outside of the shell so that the tension connector is as protected as possible, while additional energy is supplied in case of fire to the housing and to the intumescent material in case of fire.

As already mentioned, the fire protection sleeve has means for obtaining a pipe closure in case of fire, which is preferably intumescent material. However, it is also possible to provide springs, bimetals, fins with springs and similar means as means for the mechanical action of the tube closure.

According to a further variant of the invention, the combustible tube connected to the fire protection collar and the tensioning connector is designed as a shrink tube, which has a rapid reduction of the cross section when exposed to heat. It is also possible that in combustible pipes, a shrink tube is arranged partially or completely over the combustible pipe or in another position within the component. By wanting to change when heated to a smaller diameter, the occlusive effect is already at temperatures from 110 °, ie even at low temperatures, achieved and thus already causes a reduction of the pipe cross-section. As a result, a particularly favorable timing of the closure is achieved in case of fire.

According to a preferred embodiment of the invention, the housing of the fire protection sleeve with a transition section to positive connection or for seamless connection with or provided on other connection or connection parts. This extension of the housing is a metal jacket, which can have other closure options (eg intumescent material, spring mechanism, heat shrink tubing or other mechanical means).

Further, the invention provides that the connection side of the clamping connector for non-combustible tube is additionally provided with a reinforcing ring, claws or other centers to higher strength between the connecting device and the non-combustible tube.

The invention will be described below with reference to exemplary embodiments illustrated in the drawings.

Show it:

1 a variant of the system according to the invention with a pipe section of a combustible tube h in a perspective view,

1a a variant according to 1 in a sectional view,

2 a multipart connection system,

2a a connection system arranged in a common housing,

3 one in function ( 3.1 - 3.3 ) illustrated connection system according to 1 .

4 an installation example of the connection system with non-combustible pipe;

4a a sectional view of 4 .

5 the system according to the 1 in an exploded view,

6 Installation examples of the system according to 1 with connection of various types of piping to the branch,

7 Installation examples in a pipeline system of a building,

8th Installation of the system in a pipeline with non-combustible pipe and combustible or non-combustible pipe,

9 Installation of the system after 1 in a space-enclosing non-combustible piping component,

10 another variant of the system 1 .

11 Exploded view of the system after 10 .

12 Another example of the system according to 10 .

13 Representation of an installation example at the branch,

14 Representation of an installation example in a pipeline,

15 Representation of an installation example in a raumabschließenden component.

The 1 . 1a . 2 . 4 and 5 show a preferred embodiment of the system according to the invention for connection and fire-resistant, smoke-tight sealing of pipes and pipe systems, in particular for the universal connection of non-combustible or combustible and combinations of non-combustible with combustible pipes.

The system 1 comprises a clamping connector a for axial connection with at least one tube, and a fire protection collar e, which is in an operative relationship with the clamping connector a, with material intumescent under the influence of heat c. Axially to the clamping connector a is followed by the fire protection sleeve e, which surrounds a connected to the clamping connector a flammable tube h. The two juxtaposed components a and e are firmly connected to each other, wherein the intumescent material c is at least partially arranged in the fire protection cuff e. The two juxtaposed components a, e are connected by means of connecting straps i form-fitting or cohesively firmly together ( 2 ). The housing of the fire protection sleeve e for receiving the intumescent material c is preferably made of metal. The housing may be closed or open at one or more locations. The two juxtaposed components a and e can also be fixedly connected to one another by means of a common incombustible housing z, ie the tension connector a and the building material c foaming in the event of fire can be integrated in a building structure. An example of this is in the 2a shown. It can also be provided several clamping connectors. The common housing z can as in 2a be formed straight or angled trained. The fire protection sleeve e can also be used instead of the intumescent material c means for mechanical action to the pipe closure such as springs, bimetal, fusible link with spring include. However, such means are not shown in the drawings. In the 3 the system is shown in function. 3.1 shows the installation of the system in a non-combustible pipe g.

When the temperature is applied, the pipe h located in the system is softened and limited by the properties of the means (eg intumescent material c) arranged in the housing of the fire protection sleeve e in the pipe cross-section ( 3.2 ). At further temperature influence, the tube h melts away and the tube cross-section is closed ( 3.3 ). Through the transition section r, the pipe remains in position and takes over the forces. In case of insufficient attachment, the connection system is held by a claw ring j on the pipe g. The system can be arranged in vertical and horizontal lines. The system is preferably applicable for non-combustible pipes or for the transition from non-flammable to combustible pipe. In horizontal pipes can be brought about by the installation of two systems according to the invention, a closure of both non-combustible pipes. The system can be designed so that any kind of pipes, incombustible or combustible h, can be connected to the side intended for the plastic pipe h. This means that any connection (rubber connector o, clamping connector n, system-specific socket connections p) can also be integrated into the system ( 6 ).

In the 7 different installation examples are shown in a pipeline system of a building. Shown is the installation s of the system in raumabschließenden components u, the installation t in piping, the installation v at a branch above the raumabschließenden component u and the installation w below the raumabschließenden component as a beam. Together with a smoke gas-tight and sound-decoupled implementation by means of foil o. Ä. In raumabschließenden component results from the inventive system safe foreclosure with flammable connection pipes. The housing of the fire protection sleeve e is provided according to an embodiment of the invention with a transition section r for positive connection or seamless connection with or on other connection or connection parts. The formation of the portion r is inventively shaped so that transitions, eg. B. Connect a, for non-flammable tubes h, so that a closed surface is formed and the clamping connector a fits into the system ( 8th ). In the 9 is the installation of a variant of the system after 1 shown in a raumabschließenden component for non-combustible pipes g. The system has two clamping connectors a and a fire protection sleeve e arranged therebetween. The connection sides of the clamping connectors a are provided for further non-combustible pipes g. The transition section r serves for positive connection or for seamless connection.

10 shows a typical installation example of the arrangement in a non-combustible tube. The power is absorbed at the transition section r between the system and a control connector for such pipes, here a clamping connector n. In case of fire, a closed pipe guide is guaranteed. It is advantageous that the pipe feedthrough by the space-enclosing component can also be designed independently of the system so that the temperature line is reduced or interrupted. The system can be connected in the pipe or at the connection of combustible pipes to non-combustible pipe systems ( 12 ).

In the installation example after 13 (Connection system at a branch) in a non-combustible pipe system creates a fire-resistant foreclosure, however, tolerates the coming of incoming water and does not affect the functional integrity of the pipe system. For large buildings an absolute prerequisite, thereby the water supply in the downpipe of the pipe closure is not affected.

14 shows the installation in a non-combustible pipe in which no functional integrity is given. 15 shows the installation in a space-enclosing component, which simultaneously causes a temperature decoupling.

List of reference numbers used:

• a

  clamping connector

  b

  metallic part of the clamping connector

  c

  intumescent material

  d

  Clamping unit of the clamping connector

  e

  Fire protection sleeve (housing)

  f

  Sealing element in the clamping connector

  G

  non-combustible pipe

  H

  flammable pipe

  i

  connecting straps

  j

  metallic connection to non-combustible pipes

  k

  Insert for a non-combustible pipe

  l

  connection system

  m

  Branch / pipe non-flammable

  n

  Connection of clamping connectors for further flammable or non-combustible pipelines

  O

  Connection with universal connection connector for further flammable piping

  p

  Connection for molded socket or double socket for further flammable piping,

  q

  Closure on the housing of the fire protection sleeve e

  r

  Transition section

  s

  Installation in a room-enclosing component

  t

  Installation in a pipeline

  u

  room-enclosing component

  v

  Installation at the branch above a space-enclosing component

  w

  Installation at the branch below a space-enclosing component (beam)

  x

  Sleeve on housing of fire protection sleeve e

  y

  Sound insulation foil

  z

  Housing of a one-piece component

QUOTES INCLUDE IN THE DESCRIPTION

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

Cited patent literature

• DE 20015928 U1 [0005]
• DE 20214256 U1 [0005]
• DE 102006057550 A1 [0006]
• DE 102006026190 A1 [0007]
• DE 10126998 A1 [0008]

Claims (8)

System for connection and fire-resistant, smoke-tight sealing of pipes and pipe systems, in particular for the universal connection of non-combustible or combustible and combinations of non-combustible with combustible pipes, the system (l) a clamping connector (a) for axial connection with at least one tube and a with the clamping connector (a) in an operative relationship standing fire protection sleeve (s) with means (c) for obtaining a pipe closure under heat, characterized in that the clamping connector (a) the fire protection collar (s) connects, the one with the clamping connector (A) surrounding the combustible pipe (h), wherein the two juxtaposed components (a, e) are fixedly connected to each other and the means (c) for effecting a pipe closure under heat at least partially in the fire protection sleeve (e) are arranged. System according to claim 1, characterized in that the two juxtaposed components (a, e) by means of connecting straps (i) are positively or materially firmly connected to each other. System according to claim 1, characterized in that the two juxtaposed components (a, e) by means of a common non-combustible housing (z) are firmly connected to each other. System according to one of the o. G. Claims 1 to 3, characterized in that the housing of the fire protection sleeve (e) consists of metallic building materials or in parts of combustible materials for receiving the intumescent material. System according to one of the o. G. Claims 1 to 4, characterized in that the means (c) of the fire protection sleeve (e) comprise intumescent material and / or means for mechanical action to the pipe closure as in particular by springs, bimetal, fusible link with spring. System according to one of the o. G. Claims 1 to 5, characterized in that the combustible tube (h) connected to the system is formed as a shrink tube or provided with a coating designed as a shrink tube or is provided with foams or granules with foaming effect. System according to one of the o. G. Claims 1 to 6, characterized in that the connection side (j) of the clamping connector (a) has means for mechanical connection with a non-combustible tube. System according to one of the o. G. Claims 1 to 7, characterized in that the housing of the fire protection sleeve (e) is provided with a transition section (r) for the positive connection or for seamless connection with or at other connection or connection parts.

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