WO2016078857A1

WO2016078857A1 - Fire-extinguishing fitting and fire-extinguishing coupling having a solid wetting agent holder

Info

Publication number: WO2016078857A1
Application number: PCT/EP2015/074393
Authority: WO
Inventors: Wilfried Unrath
Original assignee: Awg Fittings Gmbh
Priority date: 2014-11-21
Filing date: 2015-10-21
Publication date: 2016-05-26
Also published as: EP3221014A1; DE102014223776A1

Abstract

The invention relates to a fire-extinguishing fitting, in particular in the form of a nozzle, comprising at least one water inlet end and at least one water outlet end, which are or can be connected to each other by means of a water passage in such a way that extinguishing water is conducted; wherein a component for controlling or changing an extinguishing-water flow flowing from the at least one water inlet end to the at least one water outlet end is provided in the water passage. The fire-extinguishing fitting according to the invention is characterized in that a solid wetting agent holder is inserted in the water inlet end and/or the water outlet end in such a way that the solid wetting agent holder can be removed through the water inlet end or the water outlet end, which solid wetting agent holder has an insert, around which extinguishing water can flow and which has an inner accommodating space for accommodating a solid wetting agent.

Description

Fire extinguisher fitting and fire extinguishing coupling with solid wetting agent holder

The present invention relates to a fire extinguishing fitting and a

Fire extinguishing coupling according to the preamble of claims 1 and 2, as well as a solid wetting agent holder for such a fire extinguisher or

Fire extinguishing clutch.

In the fire fighting and / or cooling of objects using extinguishing water, the extinguishing water is advantageously a wetting agent buried in order to reduce the surface tension of the water. This can do that

Extinguishing water penetrate better into pores and openings of the fire and it can be formed a foam film, which forms a barrier to the ambient air surrounding the fire. In this way, on the one hand, the smoke formation can be reduced and the flammability of the extinguished fire is reduced.

Conventionally, a liquid wetting agent was added to the extinguishing water to reduce the surface tension. This liquid wetting agent had to be mixed in special mixing equipment with the extinguishing water to develop the desired effect. Furthermore, wetting agents are known in solid form, which must be washed around like a piece of soap from the extinguishing water, so that the extinguishing water absorbs the wetting agent. For this purpose, conventionally tubular mixing devices, in which the solid wetting agent is held in a holder, screwed into the fire-extinguishing water line between two pieces of hose or in the jet pipe. Such mixing tubes therefore require a

additional equipment expense for the fire department and are relatively bulky and expensive due to their structure.

DE 85 19 419 U1 describes such a mixing tube for generating foam by supplying water. The mixing tube has a water-flushable insert for the solid wetting agent and is provided with two connecting parts, by means of which it can be screwed to a jet pipe. For this purpose, the mixing tube has two threaded connections, wherein at the rear

Threaded a water throwing tube is connected and the front threaded connection a jet pipe, mouthpiece, nozzle head or the like is connected. Accordingly, the mixing tube is positioned as an additional component in series with the jet pipe or the like.

DE 94 05 828 U1 describes a corresponding mixing device, which also has two threaded connections to be screwed between two fire hoses. In this mixing tube, the solid wetting agent holder is positioned in a side pipe parallel to a main pipe, wherein the

Mixing device comprises a three-way valve which directs the extinguishing water through the side pipe with the Festnetznetzhalter in a first position and in a second position through the main pipe, so that the solid wetting agent holder is not flowed through by the extinguishing water. Again, the mixing tube in series with the fire extinguishing valves usually provided or

Hoses switched.

DE 525 259 A discloses a jet for fire extinguishing purposes with a chamber for a solid wetting agent. The chamber is an extension of the jet pipe and is provided at one axial end with a hinged lid hinged to use the solid wetting agent in the chamber can. The lid is fastened to the outside of the chamber by means of a closure. Thus, for insertion of the solid wetting agent in the chamber first disassembly of the lid is necessary and after insertion of the lid

be properly closed with the closure.

BE 426 082 A also discloses a closed at the front end via a lid chamber for a solid wetting agent, wherein the chamber can be used by connecting flanges between two hoses. Again, a relatively complex disassembly of the lid is required to the To be able to use solid fuel mesh in the chamber, as well as after

Insert a reassembly of the lid.

The present invention has for its object to provide a fire extinguisher or fire extinguishing coupling and a Festnetzmittelhalter for such, which avoids the aforementioned expenditure on equipment and allows a cost-effective, easy to handle and fast addition of solid Netzm ittel to extinguishing water. The object of the invention is achieved by a fire extinguishing fitting,

Fire extinguishing coupling and a Festnetzmittelhalter according to

solved independent claims. In the dependent claims are

indicated advantageous and particularly expedient embodiments of the invention.

A fire extinguishing device according to the invention, which is designed in particular as a jet pipe, for example as a hollow jet pipe, has at least one

Water inlet end and at least one water outlet end, wherein the water inlet end and the water outlet end via a water passage are connected to one another or connected erschwasserwasserend. In order to control or change the flow of extinguishing water flowing through the jet pipe is in the water passage between the water inlet end and the

Wasseraustrittsende a component to control or change of the

Water inlet end provided to the water outlet end flowing fire water stream. Such a component may for example be a ball valve or another valve. Instead of a passive component, only the

Altered flow cross-section and / or the flow direction of the extinguishing water flow within the fire extinguisher, an active component, such as a pump for conveying the extinguishing water flow may also be provided. Other active components are possible. According to the invention is now in the water inlet end and / or the water outlet end, that is directly in the fire extinguisher

in particular in the jet pipe, so not in series to this, a

Solid Netzmittelhalter used, said solid wetting agent holder by the water inlet end or water outlet end, ie the end into which it is inserted, is removable, in particular without disassembly of

Fire extinguishing fitting, that is in the assembled state of the

Fire extinguishing fitting or the jet pipe. According to the invention, the solid wetting agent holder a

Extinguishing water flushable insert with an internal receiving space for

Receiving a solid wetting agent and is formed according to an embodiment of the invention solely by this use. The use can

For example, be made in one piece, in particular made of plastic, advantageously by injection molding.

According to an alternative embodiment of the invention, the solid described Netzmittelhalter is directly into the water inlet end or

Water outlet end of a fire extinguishing coupling, in particular Storz coupling used. In addition to Storz couplings, however, come other

Fire extinguishing couplings into consideration. For example, instead of a hose receptacle or in addition to a hose receptacle at the other end, the fire-extinguishing coupling can have a coupling connection for a water-carrying component, such as, for example, for a hydrant, a pump or a hose

Pipeline.

By the invention, the production cost for the

Festnetznetzmittelhalter that manages without a sleeve enclosing the use, because he directly into the water inlet end or

Water outlet end is used, compared to the known

Festnetznetmittelhaltern with surrounding pipes and additional valves considerably reduced. In addition, the solid wetting agent, also known as

Festnetzmittelkartusche is called, although it consists solely of the wetting agent itself, similar to a bar of soap, faster and easier to be replaced. So it is easily possible that the fire department a variety of such Festnetzmittelhalter, in particular already the

Solid wetting agent may be used, leads with it. The insertion of the solid wetting agent in the solid wetting agent holder can advantageously without

Disassembly of the solid wetting agent holder take place, which is formed in a particularly advantageous embodiment solely by the insert and, for example, at least at one end is aufgebiegbar to introduce the wetting agent in the inner receiving space of the insert.

The insert may for example be made of a corrosion-resistant, flexible material, for example polyamide.

According to one embodiment of the invention, the solid wetting agent is readily added to the insert during its manufacture, for example enclosing a core of the insert. Alternatively, the solid wetting agent is produced independently of the use or solid wetting agent holder, so that one and the same solid wetting agent holder can be equipped several times with a solid wetting agent.

Particularly advantageously, the solid wetting agent holder is designed such that it removably receives the solid network medium in the receiving space. Thus, the solid wetting agent can advantageously non-destructive in the receiving space

be inserted and removed from this.

If the fire extinguishing device according to the invention is designed in the form of a jet pipe, then the water outlet end will usually be designed as a free-jet end for generating a water jet, wherein in particular means are provided for regulating the throwing distance and / or beam focusing in the jet pipe.

When the solid wetting agent holder, which is then formed in particular solely by the use and advantageously manufactured in one piece, in

assembled state of the fire extinguisher fitting or the

Fire extinguishing coupling is removable from this, this means that no disassembly of the fire extinguisher or fire extinguishing coupling itself must be done to take out the solid wetting agent holder or use.

However, it is usually necessary to unscrew a hose or other fitting connected to the corresponding end in which the solid wetting agent holder is inserted in order to be able to access the solid wetting agent holder in order to insert or remove it from the end.

Between the water inlet end and the water outlet end of the

At least one or more of the following components may be provided in the fire-extinguishing fitting according to the invention or else the fire-extinguishing coupling or in the water-inlet end or water-outlet end:

- An extinguishing water distributor with at least one flow inlet and a plurality of flow processes, so that inflowing extinguishing water can be distributed to a plurality of flow processes and thus a plurality of water outlet ends;

- an extinguishing water collector, which has several flow inlets and

having at least one flow sequence for collecting the extinguishing water from the plurality of flow streams, for example from different extinguishing water sources, and jointly supplying one or more extinguishing water outlets, wherein instead of a collection of extinguishing water and the alternative supply of extinguishing water from one or more feeds is possible, for example, to selectively use water from different water sources;

an envelope flap or shuttle flap for selectively closing a flow inlet or flow path;

- a vent;

- a non-return valve or a check valve;

- a shut-off valve;

an extinguishing water conveyor;

- A Flüssigkeitszumischer, in particular Schaummittelzumischer.

The solid wetting agent holder according to the invention for insertion into a

Fire extinguisher or fire extinguishing coupling advantageously has an insert, which has a plurality of circumferentially of the receiving space and thus in the circumferential direction of the water inlet end or water outlet end, in which it is used, spaced apart webs, which in

Longitudinal direction of the receiving space and thus the water inlet end or water outlet end and limit the receiving space on the outer periphery, but only partially, due to the web shape, in particular, not covered by the webs peripheral regions in each case and / or in total greater than that of the webs covered peripheral areas are.

The webs are advantageously at least at a first axial end positively, cohesively and / or non-positively connected to each other and running freely ending at a second axial end facing away from the first axial end, wherein the webs advantageous only at its first axial end

are interconnected and, according to an advantageous embodiment, extend linearly in the axial direction, starting from this first axial end. According to an advantageous embodiment, the webs at its second axial end a deflection radially inwardly, so that they at least in not unfolded state partially enclose the solid wetting agent on the axial end face and thus prevent it from slipping out of use. If the webs at its second axial end and in particular with its entire axial portion, starting from the first axial end to the second axial end in the radial direction deformable and / or tilted relative to each other to insert a solid wetting agent via the second axial end in the inner To allow receiving space, the front side of the solid wetting agent in the inserted state encompassing areas of the webs are advantageously dimensioned such that when used in the water inlet end or water outlet end of a fire extinguisher or fire extinguishing insert as Festnetzmittelhalter slipping out of the solid wetting agent is prevented when the webs radially rest on the outside of the soffit of the water inlet end or water outlet end. Only in the state taken out of the water inlet end or water outlet end of the insert is then so far bending the use or tilting of the webs possible that the solid wetting agent can be removed or a new solid wetting agent can be inserted into the inner receiving space.

According to an advantageous embodiment, the webs at its second axial end on a radially outwardly open recess for forming a handle element. Thus, it is possible that even at an easy

verklemmenden insertion of the solid wetting agent holder with its use in the water inlet end or water outlet end of the solid wetting agent holder can be easily grasped by the fingers of a user in the

Indentations are immersed, and thereby the necessary traction on the solid wetting agent holder or the use can be exercised to extract this from the water inlet end or water outlet end. According to one embodiment of the invention, the insert comprises at least one mandrel or a core element for impressing or embedding in the

Solid mesh on.

The invention will be described by way of example with reference to exemplary embodiments and the figures.

Show it.

Figure 1 shows an exemplary design of a solid wetting agent for a solid according to the invention Netzm ittelhalter;

FIG. 2 shows a solid mesh medium according to FIG. 1 inserted into a solid wetting agent holder according to the invention during insertion of the solids wetting agent holder into the inlet end of a jet pipe;

Figure 3 is a representation corresponding to Figure 2 with inserted

Festnetznetzmittelhalter in the inlet end of a jet pipe;

Figure 4 shows the state of Figure 3 in a sectional view through the

lance;

FIG. 5 shows a further view of the solid wetting agent holder from FIGS. 2 to 4 without the solid wetting agent used;

Figure 6 shows an alternative design of a Festnetzmittelhalters with

used solid wetting agent;

Figure 7 is a further schematic representation of an axial end of a solid according to the invention Netzmittelhalters. FIG. 1 shows a possible design of a solid wetting agent 1 which can be used with a solid wetting agent holder according to the invention. In the embodiment, the solid wetting agent 1 is designed as a cylindrical block. However, other designs come into consideration.

In FIG. 2, the solid network element 1 is now inserted into a solid wetting agent holder 2 designed according to the invention. The solid wetting agent holder 2 consists of an insert 3, which encloses an inner receiving space 4 in which the solid network medium 1 is introduced. At one not yet

worn or partially dissolved solid network means 1, the inner receiving space 4 is in particular completely filled by the solid wetting agent 1.

The insert 3 has a plurality of extending in the axial direction of the inner receiving space 4 webs 5, which are connected to each other at a first axial end 6 and having an opposite second axial end 7, which is designed as a free end. At the second axial end 7, the webs 5 are bent radially inwardly so that they at least in the inserted into a water inlet end or water outlet end state of the end face 8 of

Festnetznetzmittels 1 embrace and thus this form-fitting inside

Keep recording room 4. At the opposite first axial end 6 of the insert 3 is held by the connection of the webs 5 to each other frontally.

The webs 5 have at their second axial end 7 also radially outwardly open recesses 9, which are partially formed by the end face 8 embracing portions and further directed radially outward

End portions of the webs 5. These recesses 9 allow intervention by a user to the insert 3 and the

Solid mesh holder 2 from a water inlet end or

To pull the water outlet end of a fire extinguisher or fire extinguishing coupling. In the figure 2, a jet pipe 10 is further shown, with a water inlet end 1 1 and an only indicated here water outlet end 12, which are connected by a water passage 13 with an extinguishing water. The flow of extinguishing water through the water passage 13 is controlled by the control member 14, wherein in the embodiment shown, a control member 15 is further provided, with which the focusing of the beam, which emerges freely from the water outlet end 12, can be changed. The

Control member 14 is designed for example as a ball valve.

The outer contour of the Festnetzmittelhalters 2 now corresponds to the inner contour of the water inlet end 1 1, so that the solid wetting agent holder 2, here alone formed by the insert 3, can be positively inserted into the water inlet end 1 1 and held there slightly clamped.

In the illustrated embodiment, this is the insert 3 at its front insertion end, that is, in the axial portion which terminates with the first axial end 6, tapered tapered to achieve a clamping fit by wedging. In the remaining axial region of the insert 3 is in particular made cylindrical, with the exception of the indentations. 9

In FIGS. 3 and 4, the inserted state of the

Festnetzmittelhalters 2 with the located in the inner receiving space 4 solid network means 1 in the water inlet end 1 1 of the jet pipe 10 is shown. The corresponding elements are designated by corresponding reference numerals. In the exemplary embodiment shown, the second axial end 7 of the solid wetting agent holder 2 projects out of the water inlet end 11 in the state completely inserted into the water inlet end 11. However, this is not mandatory. Alternatively, the solid wetting agent holder 2 could be completely positioned within the water entry end 11. FIG. 5 again shows the solid wetting agent holder 2 without inserted solid wetting agent. Here again, the exemplary different sections of the webs 5, namely starting from the first axial end 6, a conical section 5.1, followed by a cylindrical section 5.2, followed by the indentations 9 at the second axial end 7. It is also again particularly clear that the second axial ends 7 of the webs 5 are designed as free ends, whereas the webs 5 are connected to each other at the first axial end 6, here exemplarily via a ring shape. Due to the fact that the webs 5 extend in the axial direction of the inner receiving space 4 and in the circumferential direction of the inner receiving space 4 spaced from each other, resulting in large openings through which the

Extinguishing water can penetrate into the inner receiving space 4 in order to flow around the solid then used there net. In the figure 6 an embodiment of a solid wetting agent holder 2 is shown, which provides an even larger free passage for the fire water, since the two axial ends 6, 7 of the insert 3 are interconnected only by a core element 16 embedded in the interior of the solid wetting agent 1 , The core element 16 can, for example, run centrally through the solid-matter wetting agent 1 and either be subsequently inserted into this or the

Solid wetting agent 1 is prepared immediately on the core element 16. in the

As shown, the insert 3 still relatively short in the axial direction of the inner receiving space 4, which is here embraced more or less only on its front sides of the insert 3, extending webs 5 on. In contrast, in the embodiment according to FIG. 7, the insert 3 has only two axially extending axial ends 6, 7, which are interconnected by the core element 16. As schematically indicated, the two disc-shaped end portions of the insert 3 are positioned on the two end faces of the solid wetting agent 1, whereas the outer

Extent of the solid wetting agent 1 completely exposed and thus not from

Insert 3 is covered. Notwithstanding the illustrations in FIGS. 6 and 7, the insert 3 could also have less than the illustrated four or six arms at its two axial ends 6, 7, in particular only one linear element each, which extends at least over the end face of the solid wetting agent 1 , Advantageously, however, the two end elements are aligned at an angle to each other, in particular aligned perpendicular to each other, so that an optimal

Centering of the solid wetting agent 1 in the water inlet end or

Water outlet end is done.

Claims

claims

1 . Fire extinguishing fitting, in particular in the form of a jet pipe (10),

1 .1 with at least one water inlet end (11) and at least one

Water outlet end (12), which via a water passage (13)

are connected or connectable to the extinguishing water; in which

1 .2 in the water passage (13) a component for controlling or changing one of the at least one water inlet end (1 1) to the at least one water outlet end (12) flowing

Extinguishing water flow is provided;

characterized in that

1 .3 in the water inlet end (1 1) and / or the water outlet end (12) a Festnetzmittelhalter (2) through the water inlet end (11) or the water outlet end (12) is removably inserted,

1 .4 of an extinguishing water flushable insert (3) with an inner

Receiving space (4) for receiving a solid Netzm ittels (1).

2. Fire-extinguishing coupling, in particular Storz coupling,

2.1 with at least one water inlet end (11) and at least one

Water outlet end (12), which via a water passage (13)

are connected or connectable to the extinguishing water; in which

2.2 at least one water inlet end (1 1) and / or a water outlet end (12) has a hose receptacle for connecting a fire hose or a coupling connection for a water-carrying component;

characterized in that

2.3 in the water inlet end (1 1) and / or the water outlet end (12) a Festnetzmittelhalter (2) through the water inlet end (1 1) or the water outlet end (12) is removably inserted,

2.4 of a löschwasserumspülbaren insert (3) with an inner

Receiving space (4) for receiving a solid Netzm ittels (1). Fire extinguishing fitting according to claim 1, characterized in that the water outlet end (12) as an open-beam end for generating a

Water jet is designed to form a jet pipe (10).

Fire extinguishing fitting or fire extinguishing coupling according to one of Claims 1 to 3, characterized in that the insert (3) is free from another jacket tube enclosing the insert (3)

Water inlet end (11) and / or the water outlet end (12) is inserted.

Fire extinguishing fitting or fire extinguishing coupling according to one of claims 1 to 4, characterized in that the solid wetting agent holder (2) is formed solely by the insert (3), which is in particular made in one piece.

Fire extinguishing fitting or fire extinguishing coupling according to one of claims 1 to 5, characterized in that the solid wetting agent holder (2) in the assembled state of the fire extinguishing fitting or

Fire extinguishing coupling is removable from this.

Fire extinguishing fitting or fire extinguishing coupling according to one of claims 1 to 6, characterized in that between the water inlet end (1 1) and the water outlet end (12) or in the water inlet end (1 1) or water outlet end (12) at least one of the following components is provided:

an extinguishing water distributor with at least one flow inlet and a plurality of flow processes;

an extinguishing water collector with at least one flow sequence and a plurality of flow rates; an envelope flap and / or shuttle flap for selectively closing a flow inlet or flow path; a vent;

a non-return valve or a check valve;

a shut-off valve;

an extinguishing water conveyor;

a Flüssigkeitszumischer, in particular Schaummittelzumischer.

Fire extinguishing fitting or fire extinguishing coupling according to one of claims 1 to 7, characterized in that the insert a plurality of circumferentially of the inner receiving space (4) to each other

spaced webs (5) extending in the direction of flow of the extinguishing water flow through the water passage (13) and the inner receiving space (4) on its outer periphery limit.

Fire extinguishing fitting or fire extinguishing coupling according to claim 8, characterized in that the webs (5) at least at a first axial end (6) positively, materially and / or non-positively connected to each other and at a second from the first axial end (6) facing away from the second axial end (7) free end and in particular have a deflection radially inward.

Solid wetting agent holder (2) for use in a fire extinguishing fitting or fire extinguishing coupling according to one of claims 1 to 9;

with an extinguishing water flushable insert (3), an inner

Receiving space (4) for receiving a solid wetting agent (1) and is designed to immediately and free of an enclosing cladding tube in a water inlet end (1 1) or water outlet end (12) of

Fire extinguishing fitting or fire extinguishing coupling to be used.

1 1. Solid wetting agent holder (2) according to claim 10, characterized in that the solid wetting agent holder (2) is formed solely by the insert (3), which is in particular made in one piece. 12. solid wetting agent holder (2) according to any one of claims 10 or 1 1,

characterized in that the insert (3) has a plurality of in

Circumferential direction of the inner receiving space (4) to each other

spaced webs (5) extending in the longitudinal direction of the inner receiving space (4) and delimiting this on the outer periphery.

Solid wetting agent holder (2) according to claim 12, characterized in that the webs (5) at least at a first axial end (6)

are positively connected, cohesively and / or non-positively connected to each other and free at a second from the first axial end (6) facing away from the second axial end (7) and in particular have a deflection radially inwardly.

Festnetznetzmittelhalter (2) according to claim 13, characterized in that the webs (5) at its second axial end (7) and in particular with its entire axial portion, starting from the first axial end (6) to the second axial end (7) in the radial direction deformable and / or tilted relative to each other to the insertion of a

Festnetznetzmittels (1) via the second axial end (7) in the inner receiving space (4) to allow and in the inserted state of the solid wetting means (1) this with the second axial end (7)

to grip positively.

15. solid wetting agent holder (2) according to one of claims 10 to 14,

characterized in that the webs (5) are interconnected exclusively at the first axial end (6).

16. Festnetznetzmittelhalter (2) according to any one of claims 13 to 15, characterized in that the webs (5) at its second axial end (7) has a radially outwardly open recess (9) for forming a handle element.

17. solid wetting agent holder (2) according to one of claims 10 to 16,

characterized in that the insert (3) comprises at least one mandrel or a core element (16) for impressing or embedding in the

Solid wetting agent (1).

18. solid wetting agent holder (2) according to one of claims 10 to 17,

characterized in that the solid wetting agent holder (2) the

Removable solids net (1) from the receiving space (4) receives.