EP3669950A1 - Extinguishant container - Google Patents

Abstract

Extinguishing agent container at least comprising: a pressure container, comprising a container cavity clad by a container lid, a container bottom and a container wall arranged between the container lid and the container bottom, a piston plate arranged in the container cavity and essentially oriented vertically to the container wall, which is set up to set the container cavity into an extinguishing agent space and to subdivide a pressure medium space, the extinguishing medium space being set up to hold an extinguishing medium and the pressure medium space being set up to hold a pressure medium, the inside of the container wall in an upper region of the extinguishing medium space having at least one wall groove starting at the container lid, which is set up to guide a fluid, in particular at least the pressure medium, and the piston plate has at least one piston plate groove on an upper side that faces the extinguishing agent space , which is set up to carry a fluid, in particular at least the pressure medium.

Description

The present invention relates to an extinguishing agent container and a method for transporting and filling such, and a method for dispensing an extinguishing agent. Furthermore, the present invention comprises an extinguishing system at least comprising such an extinguishing agent container.

Extinguishing agent containers are usually used in the field of fire protection, for example in small extinguishing systems, such as cabinet protection extinguishing systems and the like.

For this purpose, the extinguishing agent containers must be filled with extinguishing agent and, if necessary, transported to the place of use, i.e. the place where the extinguishing agent is to be applied or where the extinguishing system is installed.

Transport usually has a number of disadvantages:
For example, conventional extinguishing agent containers are subjected to high pressure or have a pyrotechnic element with which the extinguishing agent is released.

This can lead to transport problems, for example, since not every freight forwarder can or may transport containers under pressure or provided with pyrotechnic elements.

In addition, known extinguishing agent containers usually have incomplete emptying when in use. This means in particular that known extinguishing agent containers are not set up to be completely emptied when used properly. This has mostly constructive causes.

The following documents were mentioned in the search report in the priority German application: WO 2007/077195 A1 , DE 7 004 038 U. and DE 20 2009 017 884 U1 .

The object of the present invention is therefore to address at least one of the above-mentioned problems, to improve the general state of the art or to provide an alternative to the previously known. In particular, an extinguishing agent container is to be provided which enables simple transport of extinguishing agents and / or enables better, in particular complete, emptying of the extinguishing agent container.

According to the invention, an extinguishing agent container according to claim 1 is thus proposed.

An extinguishing agent container is thus proposed, at least comprising: a pressure container, comprising a container cavity clad by a container lid, a container bottom and a container wall arranged between the container lid and the container bottom, a piston plate arranged in the container cavity and essentially oriented vertically to the container wall, which is set up for this purpose, subdivide the container cavity into an extinguishing agent space and into a pressure medium space, the extinguishing agent space being set up to hold an extinguishing medium and the pressure medium space being set up to hold a pressure medium, the container walling on an inside in an upper region of the extinguishing medium space at least one covering groove beginning on the container lid, which is set up to guide a fluid, in particular at least the pressure medium, and wherein the piston plate on an upper side, which faces the extinguishing agent space , has at least one piston plate groove, which is set up to hold a fluid. in particular to guide at least the pressure medium.

The extinguishing agent container thus essentially consists of a pressure container and a piston plate arranged in the pressure container.

The pressure vessel comprises a container lid, a container bottom and a container wall.

In addition, the pressure vessel is designed so that it has a container cavity.

The container cavity is thus clad by a container lid, a container bottom and a container wall.

For this purpose, the pressure vessel is preferably essentially cylindrical and is also designed to receive and hold a wide variety of fluids, in particular extinguishing agents and / or pressure media, in the container cavity.

The pressure vessel is thus preferably designed to be fluid-tight.

In a particularly preferred embodiment, the container lid, the container bottom and the container wall are made of a material, preferably metal, which meets the mechanical requirements.

In a further preferred embodiment, the pressure vessel is further configured to receive and in particular hold both an extinguishing agent and a pressure medium.

Preferably, at least the inner sides of the container lid, the container bottom and the container wall have resistance to pressure and / or extinguishing agent.

Furthermore, according to the invention, a piston plate is arranged in the container cavity, in particular essentially perpendicular to the container wall, that is to say essentially horizontally in the pressure container, if this is preferably arranged upright.

As a result, the piston plate divides the container cavity into two spaces, in particular an upper extinguishing agent space and a lower pressure medium space.

The piston plate is thus preferably designed to divide the container cavity into two separate rooms, each of which is set up to receive a fluid.

The extinguishing agent room is also set up to hold an extinguishing agent, for example HFC-227ea, FK-5-1-12, or water H ₂ O.

The extinguishing agent space is thus preferably designed to be fluid-tight and, in addition or alternatively, the container wall is essentially resistant to such extinguishing agents.

The pressure medium space is also set up to hold a pressure medium, for example compressed gases.

So-called extinguishing gases are preferably used as pressure medium, that is to say gases which have a fire-fighting effect, for example nitrogen (N ₂ ), argon (Ar), carbon dioxide (CO ₂ ).

In a particularly preferred embodiment, the pressure medium has at least one fire-fighting property and additionally or alternatively no oxygen.

The extinguishing agent container according to the invention thus makes it possible to initially fill the extinguishing agent container with only one extinguishing agent, for example through a valve which is connected to the extinguishing agent space in a fluid-conducting manner, and then to transport the latter essentially without pressure, that is to say under atmospheric pressure. In addition or alternatively, pyrotechnic elements are preferably dispensed with in the embodiment according to the invention. In this respect, the extinguishing agent container according to the invention facilitates the transport of extinguishing agents or extinguishing agent containers by a multiple.

In order to furthermore enable the extinguishing agent space to be emptied as completely as possible, the inside of the container has at least one covering groove on the inside, starting at the container cover, which is designed to carry at least one fluid, in particular a pressure medium, preferably a pressure medium and an extinguishing medium. In addition, the piston plate has at least one piston plate groove on an upper side, which faces the extinguishing agent space and is designed to guide a fluid, in particular at least one pressure medium, preferably a pressure medium and an extinguishing agent.

The mode of operation of the extinguishing agent container according to the invention is explained in detail below with the help of the accompanying figures and is therefore only briefly and exemplarily summarized below:
If the extinguishing agent space is provided with an extinguishing agent and the pressure medium space is provided with a pressure medium, the piston plate moves through the container cavity when the extinguishing agent space is opened, specifically by reducing the pressure medium, reducing the extinguishing agent space and increasing the pressure medium space, and pushes here through the extinguishing agent from the extinguishing agent room. The extinguishing agent space is opened, for example, by means of a fluid outlet channel arranged in the container lid, which can preferably be opened by a valve such that the extinguishing agent flows out of the extinguishing agent space through the fluid outlet channel.

The extinguishing agent container, preferably the container lid, preferably has a fluid outlet channel for dispensing the extinguishing agent.

If the piston plate now moves past the wall of the wall, the pressure medium flows around the piston plate, from the pressure medium space into the extinguishing medium space, and thus further pushes the extinguishing medium out of the container.

If the piston plate abuts the container lid, the extinguishing agent space essentially consists only of the piston plate groove and the chamfer. Since this forms a fluid-conducting channel together with the wall, the last remnant of the extinguishing agent is also pushed out of the container by the pressure medium and the container is thus completely emptied of the extinguishing agent.

The extinguishing agent container preferably further comprises a pressure medium valve, which is set up to fill the pressure medium space with a pressure medium.

For this purpose, the pressure medium valve is preferably arranged in the tank bottom.

In a particularly preferred embodiment, the pressure medium valve is at least set up to be pressurized with 20 bar, preferably with at least 50 bar.

In a further preferred embodiment, the pressure medium valve is designed as a 1-way valve, namely in particular in order to apply pressure medium to the pressure medium space.

The extinguishing agent container preferably further comprises a venting and / or test connection, which is set up to vent the pressure medium space and also or alternatively to check the pressure medium space, and in particular the pressure medium in the pressure medium space.

The venting and / or test connection is preferably arranged in the bottom of the container.

The extinguishing agent container preferably further comprises an extinguishing agent valve which is set up to keep an extinguishing agent under a transport pressure in the extinguishing agent space and to lead it out of the extinguishing agent space under an operating pressure.

The extinguishing agent valve is preferably arranged in or on the container lid.

In a particularly preferred embodiment, the extinguishing agent valve is set up to keep an extinguishing agent under a transport pressure in the extinguishing agent space and to lead it out of the extinguishing agent space under an operating pressure, the extinguishing agent valve preferably being arranged in or on the container lid. The extinguishing agent valve is particularly preferably arranged on the container lid.

Transport pressure is essentially understood to mean atmospheric pressure, that is to say approximately 1 bar.

The operating pressure is also many times higher and depends on how strongly the pressure medium in the pressure medium chamber has been pressurized, e.g. with 20 or 50 bar. In a particularly preferred embodiment, the extinguishing agent valve is designed as a 2-way valve, namely in particular around the Fill the extinguishing agent space with the extinguishing agent using the extinguishing agent valve and to release the extinguishing agent from the extinguishing agent space.

In a further preferred embodiment, the extinguishing agent valve is a fully discharge valve.

The container walling preferably has at least two walling grooves on the inside in the area of the extinguishing agent space.

It is therefore proposed that the container wall has more than one wall, for example two, three, four or more.

The at least two wall grooves are preferably arranged symmetrically, for example in the case of two wall grooves, opposite one another, or in the case of three wall grooves, symmetrically distributed within the wall of the container, for example offset by 120 °.

In a further preferred embodiment, the walling grooves are arranged mirror-symmetrically to one another. For example, offset by 180 ° in the case of two groove grooves or offset by 90 ° in the case of four groove grooves.

The container wall preferably has four wall grooves on the inside in the area of the extinguishing agent space.

The four wall grooves are preferably arranged symmetrically.

The four wall grooves are particularly preferably arranged offset by 90 °.

The piston plate preferably has at least two piston plate grooves on the upper side which faces the extinguishing agent space.

The piston plate grooves preferably run completely through the top of the piston plate.

The piston plate grooves particularly preferably intersect, preferably at a center of the piston plate, in particular perpendicular to one another, that is to say at an angle of 90 °.

The piston plate preferably has a base body and a body, and preferably a plurality of piston plate grooves running through the base body.

The base body and the body can be formed, for example, from one component or from several components.

The base body and the body are preferably a common component.

Furthermore, the piston plate grooves are arranged in the body and preferably run completely through them. The piston plate grooves are particularly preferably arranged in the body.

In addition, the body is tapered, ie it essentially has the shape of a truncated cone. As a result, the outer surface of the base body and the outer surface of the body are at an angle to one another which is preferably less than 90 °.

As a result, a chamfer is formed between the container wall and the piston plate, which runs around the body. The bevel itself preferably has a bevel angle greater than 0 ° and less than 90 °, e.g. 30 °, 45 °, 60 °. In a particularly preferred embodiment, the bevel angle is between 30 ° and 70 °, particularly preferably approximately 45 °.

The chamfer thus preferably forms a circumferential, fluid-conducting channel, in particular the pressure medium-conducting channel, which can be connected in a fluid-conducting manner to the grooves in the wall, that is to say the wall grooves, and the piston plate grooves. In this respect, this fluid-conducting channel formed by the chamfer can connect the walling grooves to the piston plate grooves, in particular to form a common fluid-conducting channel.

The piston plate preferably has at least one circumferential seal.

A seal is thus arranged around the piston plate, which is preferably arranged on the base body.

The seal is in particular set up to separate the extinguishing agent space from the pressure medium space in a fluid-tight manner. The seal is preferably used in a circumferential groove on the piston plate. This circumferential groove is preferably not the chamfer. The seal is thus preferably arranged below the chamfer and on or at least partially in the piston plate, in particular in a groove.

The seal is preferably arranged on the base body of the piston plate.

In a particularly preferred embodiment, at least two seals are provided which completely run around the base body. The seals are particularly preferably spaced apart from one another.

The walling grooves preferably each have a groove length that is greater than a maximum height of the piston plate.

The maximum height of the piston plate is determined in particular from the height of the base body plus the height of the body.

In a preferred embodiment, the wall grooves are all of the same length and / or the piston plate is symmetrical.

The grooves, in particular the piston plate grooves and the walling grooves, are preferably arranged in such a way that a fluid-conducting channel is formed when the piston plate is displaced and is designed to at least partially flow around the piston plate with a fluid, in particular the pressure medium.

It is thus proposed in particular that the piston plate grooves, the chamfer and the walling grooves form a functional unit which is set up to guide a fluid, in particular the pressure medium, preferably the pressure medium and the extinguishing medium.

In a preferred embodiment, the pressure medium flows around or partially flows around the piston plate when the top of the piston plate is at a distance from the inside of the container cover that is less than the difference in the groove length and the maximum height of the piston plate and / or after the stop the top of the piston plate to the inside of the container cover, the pressure medium flows through the fluid outlet channel to the nozzle.

According to the invention, an extinguishing system, in particular a small extinguishing system for object protection, is also proposed, at least comprising: an extinguishing agent container, as described above or below, an extinguishing agent line connected to the extinguishing agent container and at least one nozzle connected to the extinguishing agent line, which is set up to provide an extinguishing agent, which comes from the extinguishing agent container.

In a further embodiment, the small extinguishing system comprises several such extinguishing agent containers and / or extinguishing agent lines and / or nozzles, for example two extinguishing agent containers, one extinguishing agent line and ten nozzles.

In other embodiments, the extinguishing agent container or containers are stored upright or lying down.

According to the invention, a method for transporting an extinguishing agent by means of an extinguishing agent container having an extinguishing agent space and a pressure medium space, in particular by means of an extinguishing agent container described above or below, is also proposed, at least comprising the steps: providing the extinguishing agent container; Filling the extinguishing agent space with an extinguishing agent such that the extinguishing agent space has an atmospheric pressure; and optionally: transporting the extinguishing agent container, preferably with a transport device.

It is therefore proposed in particular to use an extinguishing agent container described above or below for the transport of extinguishing agent and to fill the extinguishing agent space with extinguishing agent for the transport so that an atmospheric pressure of approximately 1 bar prevails within the extinguishing agent container.

The pressure medium can then be entered into the pressure medium space after the transport in order to put the extinguishing agent container into an operating state.

According to the invention, a method for filling an extinguishing agent container having an extinguishing agent space and a pressure medium space, in particular an extinguishing agent container described above or below, is further proposed, at least comprising the steps: providing the extinguishing agent container; optional: cleaning the extinguishing agent space and the pressure medium space, especially using a cleaning agent; Filling the extinguishing agent space with an extinguishing agent such that the extinguishing agent space has an atmospheric pressure; and optionally: filling the pressure medium space with a pressure medium such that the pressure medium space has an operating pressure, in particular after the extinguishing medium space has been filled.

It is therefore proposed in particular to first fill the extinguishing agent space with extinguishing agent and then to fill the pressure medium space with pressure medium, in particular to apply a pressure.

According to the invention, a method for dispensing an extinguishing agent, in particular by means of an extinguishing agent container described above or below, is also proposed, at least comprising the steps: releasing the extinguishing agent by opening a fluid outlet channel of an extinguishing agent container, the opening preferably taking place by triggering a valve, the opening being closed leads to a movement of a piston plate in the extinguishing agent container, which presses the extinguishing agent out of the extinguishing agent container, a pressure medium preferably flowing around the piston plate at least temporarily or depending on the position of the piston plate in the extinguishing agent container.

It is thus proposed in particular to apply extinguishing agent by means of an extinguishing agent container with a 2-chamber system, the two chambers being separated by a piston plate which is displaceably mounted in the extinguishing agent container.

An extinguishing agent container described above or below is preferably used for this.

The extinguishing agent container particularly preferably does not comprise two containers placed one inside the other, one for the extinguishing agent and one for the pressure medium.

Furthermore, the extinguishing agent is released by opening a fluid outlet channel, in particular pressed out of the extinguishing agent container by means of the piston plate.

A pressure medium preferably flows around the piston plate when an upper side of the piston plate is at a distance from the inside of a container cover that is smaller than a difference in a groove length, which is defined by a groove on a container wall, and a maximum height of the piston plate .

It is therefore also proposed in particular that the extinguishing agent container has covering grooves as described above or below, which are preferably arranged in the extinguishing agent space.

In addition, it is proposed that the walling grooves have a length that is greater than the piston plate height, so that the walling can flow around the piston plate when the piston plate is at the height of the walling grooves.

For this purpose, the covering grooves are preferably arranged in the vicinity of the fluid outlet channel in such a way that an essentially complete emptying of the extinguishing agent is made possible.

After a stop of the top of the piston plate against the inside of the container cover, a pressure medium preferably flows through the fluid outlet channel.

The sequence of such a method is explained in more detail below using an extinguishing agent container according to the invention.

Fig. 1

schematisch und exemplarisch ein bevorzugtes Ausführungsbeispiel eines erfindungsgemäßen Löschmittelbehälters, insbesondere in einem Querschnitt;

Fig. 2

schematisch und exemplarisch ein bevorzugtes Ausführungsbeispiel eines Kolbentellers eines erfindungsgemäßen Löschmittelbehälters, insbesondere in einer Draufsicht auf die Oberseite und den dazu korrespondierenden Querschnitt;

Fig. 3A

schematisch und exemplarisch ein bevorzugtes Ausführungsbeispiel eines erfindungsgemäßen Löschmittelbehälters in einem Transportzustand, insbesondere in einem Querschnitt;

Fig. 3B

schematisch und exemplarisch ein bevorzugtes Ausführungsbeispiel eines erfindungsgemäßen Löschmittelbehälters in einem Betriebszustand, insbesondere in einem Querschnitt;

Fig. 3C

schematisch und exemplarisch ein bevorzugtes Ausführungsbeispiel eines erfindungsgemäßen Löschmittelbehälters in einem ersten Entleerungszustand, insbesondere in einem Querschnitt;

Fig. 3D

schematisch und exemplarisch ein bevorzugtes Ausführungsbeispiel eines erfindungsgemäßen Löschmittelbehälters in einem zweiten Entleerungszustand, insbesondere in einem Querschnitt;

Fig. 3E

schematisch und exemplarisch ein bevorzugtes Ausführungsbeispiel eines erfindungsgemäßen Löschmittelbehälters in einem dritten Entleerungszustand, insbesondere in einem Querschnitt;

Fig. 3F

schematisch und exemplarisch ein bevorzugtes Ausführungsbeispiel eines erfindungsgemäßen Löschmittelbehälters in einem vollständigen Entleerungszustand, insbesondere in einem Querschnitt und

Fig. 4

schematisch und exemplarisch ein bevorzugtes Ausführungsbeispiel eines erfindungsgemäßen Kleinlöschsystems.

Further advantages and advantageous configurations of the invention are described in more detail below with reference to the attached figures, the same reference numerals being used for identical or similar components or assemblies. Here show:

Fig. 1

schematically and exemplarily a preferred embodiment of an extinguishing agent container according to the invention, in particular in a cross section;

Fig. 2

schematically and exemplarily a preferred embodiment of a piston plate of an extinguishing agent container according to the invention, in particular in a plan view of the top and the corresponding cross section;

Figure 3A

schematically and exemplarily a preferred embodiment of an extinguishing agent container according to the invention in a transport state, in particular in a cross section;

Figure 3B

schematically and exemplarily a preferred embodiment of an extinguishing agent container according to the invention in an operating state, in particular in a cross section;

Figure 3C

schematically and exemplarily a preferred embodiment of an extinguishing agent container according to the invention in a first emptying state, in particular in a cross section;

Fig. 3D

schematically and exemplarily a preferred embodiment of an extinguishing agent container according to the invention in a second emptying state, in particular in a cross section;

Figure 3E

schematically and exemplarily a preferred embodiment of an extinguishing agent container according to the invention in a third emptying state, in particular in a cross section;

Figure 3F

schematically and exemplarily a preferred embodiment of an extinguishing agent container according to the invention in a complete emptying state, in particular in a cross section and

Fig. 4

schematically and exemplarily a preferred embodiment of a small extinguishing system according to the invention.

Fig. 1 shows schematically and by way of example a preferred exemplary embodiment of an extinguishing agent container 100 according to the invention, in particular in a cross section.

The extinguishing agent container 100 comprises a pressure container 110 with a container cavity VB and a piston plate 120 arranged in the container cavity VB, which divides the container cavity VB into an extinguishing agent space VL and a pressure medium space VD.

The pressure container 110 itself has a container cover 112, a container base 114 and a container wall 116 arranged between the container cover 112 and the container base 114.

The container lid 112, the container bottom 114 and the container wall together cover the container cavity VB in a fluid-tight manner.

In order to fill the extinguishing agent container 100, in particular the pressure medium chamber VD, with a pressure medium D, a pressure medium valve 130 is arranged in the container base 114, which is set up to fill or pressurize the pressure medium chamber VD with a pressure medium D.

Furthermore, a venting and / or test connection 140 is arranged in the tank bottom 114, which is set up to vent the pressure medium chamber VD and also or alternatively to check the pressure medium chamber VD, and in particular the pressure medium D in the pressure medium chamber VD.

In order to fill the extinguishing agent container 100, in particular the extinguishing agent space VL, with an extinguishing agent L, a fluid outlet channel 113 is arranged on the container lid 112, which is connected, for example, to an extinguishing agent valve 150, which is set up to fill the extinguishing agent space VL with extinguishing agent and / or in Extinguishing agent room VL to release extinguishing agent L if necessary.

The extinguishing agent valve 150 is thus preferably connected in a fluid-conducting manner to a fluid outlet channel 113 in the container lid 112.

The preferably electrical triggering device for the extinguishing agent valve 150 is preferably arranged above the fluid outlet channel, in particular outside the extinguishing agent container 100.

The container lid 112 thus preferably has at least one fluid outlet channel 113 for the extinguishing agent valve 150. The fluid outlet channel 113 is preferably arranged in the container lid 112. The fluid outlet channel 113 is particularly preferably set up to fill the extinguishing agent space (V _L ) with extinguishing agent (L) and / or to release or release the extinguishing agent (L) from the extinguishing agent space (V _L ).

The extinguishing agent valve 150 is further configured to keep the extinguishing agent L under a transport pressure PT in the extinguishing agent space VL and to lead it out of the extinguishing agent space VL at an operating pressure PB. The transport pressure PT preferably essentially corresponds to an atmospheric pressure, that is to say approximately 1 bar. The operating pressure, however, is much higher, for example at 20 bar.

In order to empty the extinguishing agent container 100 according to the invention, the piston plate 120 is arranged essentially horizontally in the container cavity VB, that is to say essentially perpendicular to the container wall 116.

The piston plate 120 itself is essentially cylindrical and symmetrical and comprises a base body 124 and a body 126, the body 126 being tapered. This construction of the piston plate 120 essentially leads to the formation of a chamfer Φ with a chamfer angle ϕ between the container wall 116 and the piston plate 120, which preferably runs completely around the body 126 at an angle of approximately 45 °.

Furthermore, the container wall 116 on the inside 117 in an upper region of the extinguishing agent space VL has four wall grooves 118, 118 ', 118 ", 118"' ', which begin at the container lid 112, are offset by 90 ° to one another and are equally spaced in the Extend extinguishing agent space VL, in particular have the same groove length LBN.

The wall grooves 118, 118 ', 118 ", 118""are preferably designed to guide the pressure medium D and the extinguishing medium L. In addition, the wall grooves 118, 118', 118", 118 "" have a groove length LBN , which is greater than the height HKM of the piston plate 120.

Furthermore, on the upper side 121 of the piston plate 120, that is to say that which faces the extinguishing agent space VL, two piston plate grooves 122 122 'are arranged within the body 126.

In addition, the top side 121 of the piston plate 120 is at a distance X from or to the inside of the container lid 112.

The piston plate grooves 122, 122 'run completely through the body 126 and intersect each other essentially perpendicularly at the center M of the piston plate.

The piston plate grooves 122, 122 'are preferably also set up to guide the extinguishing agent and the pressure medium.

A preferred embodiment of the piston plate 120 is, for example, the Figure 2 refer to.

In order to separate the extinguishing agent space VL from the pressure medium space VD, two seals 128, 128 'are also arranged on the piston plate 120, which completely surround the piston plate 120. The seals 128, 128 'are also vertically spaced apart.

The mode of operation of the extinguishing agent container according to the invention is further explained below on the basis of the Figures 3A to 3F explained.

Fig. 2 shows schematically and by way of example a preferred exemplary embodiment of a piston plate 120 of an extinguishing agent container 100 according to the invention, in particular in a plan view of the top and the corresponding cross section, in particular an extinguishing agent container 100 as in FIG Fig. 1 shown.

The piston plate 120 essentially comprises a base body 124 and a body 126, as in the lower illustration of FIG Fig. 2 shown.

The body 126 is tapered and has a chamfer Φ with a chamfer angle ϕ.

Furthermore, the body 124 is completely traversed by the two piston plate grooves 122, 122 ', which intersect perpendicularly in the center M of the piston plate 120. The Piston plate grooves 122, 122 'are arranged on the upper side 121 of the piston plate 120, that is to say the side which points into the extinguishing agent space VL, that is to say the side facing away from the pressure medium space VD.

The mode of operation of the extinguishing agent container according to the invention is now described below with reference to Figures 3A to 3F explained.

Figure 3A shows schematically and by way of example a preferred exemplary embodiment of an extinguishing agent container 100 according to the invention, as in FIG Fig. 1 shown in a transport condition.

Here, the extinguishing agent space VL is essentially completely filled with an extinguishing agent L via the extinguishing agent valve 150, in particular such that the extinguishing agent L has a transport pressure PT, preferably an atmospheric pressure of approximately 1 bar.

Since the pressure medium space VD is not acted upon by a pressure medium D for transport, the volume of the pressure medium space goes towards 0 liters.

As a result, the piston plate 120 essentially rests on the container base 114.

Figure 3B shows schematically and by way of example a preferred exemplary embodiment of an extinguishing agent container 100 according to the invention, as in FIG Fig. 1 shown in an operating state.

After the extinguishing agent container 100 according to the invention has been provided with extinguishing agent L, for example in Figure 3A shown, and has been transported to the place of use, the extinguishing agent container 100 is pressurized there via the pressure medium valve 130 with a pressure medium D in the pressure medium space VD, for example 20 bar.

As a result, the piston plate 120 lifts slightly, or from the container base 114, and the extinguishing agent container is in its operating state.

The extinguishing agent container thus has, for example, an operating pressure PB of approximately 20 bar.

Figure 3C shows schematically and by way of example a preferred exemplary embodiment of an extinguishing agent container 100 according to the invention, as in FIG Fig. 1 shown in a first emptying state.

After the extinguishing agent container 100 according to the invention with extinguishing agent L, such as in Figure 3A shown, and with pressure medium D, such as in Figure 3B has been shown, the extinguishing agent L can be dispensed to a pipeline, for example, by opening the extinguishing agent valve 150.

By opening the extinguishing agent valve 150, the pressure medium D can relax, whereby the piston plate 120 is displaced upward and the extinguishing agent L is pressed out of the extinguishing agent container, this is due to the flow of the extinguishing agent L indicated.

Fig. 3D shows schematically and by way of example a preferred exemplary embodiment of an extinguishing agent container 100 according to the invention, as in FIG Fig. 1 shown in a second emptying state.

By further releasing the pressure medium D, as in Figure 3C shown, the piston plate 120 pushes past the wall grooves 118, 118 ".

If the distance X of the top side 121 of the piston plate 120 to the inside of the container cover 112 now becomes smaller than the difference between the groove length L _BN minus the maximum height of the piston plate H _KM , i.e. in particular the height of the piston plate which lies against the wall of the wall, the pressure medium begins D flow around the piston plate.

Pressure medium is therefore preferably flowed around the piston plate if: $$\mathrm{X}<\left({\mathrm{L}}_{\mathrm{BN}}-{\mathrm{H}}_{\mathrm{KM}}\right)\mathrm{.}$$

The pressure medium D thus flows around the piston plate 120 through the wall grooves 118, 118 ″ and presses further extinguishing medium L out of the extinguishing medium container 100, this is due to the pressure medium flow D and the extinguishing agent flow L indicated.

Figure 3E shows schematically and by way of example a preferred exemplary embodiment of an extinguishing agent container 100 according to the invention, as in FIG Fig. 1 shown in a third emptying state.

By further releasing the pressure medium D, as in Fig. 3D shown, the piston plate 120 pushes itself up to the container top 112.

As a result, the pressure medium D flows around the piston plate 120 through the wall grooves 118, 118 "and through the piston plate grooves 122, 122 'and presses the last extinguishing agent L, which is also located in the piston plate grooves 122, 122', out of the extinguishing agent container 100, this is due to the Pressure medium flow D and the extinguishing agent flow L indicated.

The walling grooves 118, 118 "and the piston plate grooves 122, 122 'together with the circumferential chamfer thus form a fluid-conducting channel, as in FIG Figure 3E shown.

Figure 3F shows schematically and by way of example a preferred exemplary embodiment of an extinguishing agent container 100 according to the invention, as in FIG Fig. 1 shown in a complete drain condition.

After the last extinguishing agent L has been completely discharged from the extinguishing agent container 100, as in FIG Figure 3E shown, the pressure medium D flows through the extinguishing agent valve 150.

According to the invention, the inflowing pressure medium D can also be used as an extinguishing medium L, for example in a second extinguishing phase, in particular as described above.

The extinguishing agent container 100 is thus completely emptied from the extinguishing agent L or has a complete emptying state.

Fig. 4 shows schematically and by way of example a preferred exemplary embodiment of a small extinguishing system 1000 according to the invention.

The small extinguishing system 1000 is particularly suitable for the object protection of small, closed rooms 2000 of, for example, 15 m ³ , that is, for example, server rooms, snack machines, IT cabinets and the like.

The small extinguishing system 1000 comprises at least one extinguishing agent container 100 described above or below, an extinguishing agent line 200 connected to the extinguishing agent container 100 and a nozzle 300 connected to the extinguishing agent line 200, which is configured to dispense an extinguishing agent L, which comes from the extinguishing agent container.

The small extinguishing system 1000 is at least set up such that when the extinguishing agent L is discharged from the extinguishing agent container 100, at least a pressure of 2 bar prevails at the nozzle.

The operating pressure PB of the extinguishing agent container 100 is therefore adapted to the extinguishing system 1000 and the corresponding room 2000.

In some cases, the extinguishing agent container 100 can be charged with 20 bar in the pressure medium space for this purpose, in other cases, for example, with 50 bar.

Reference list:

100

Extinguishing agent container

110

pressure vessel

112

Container lid

113

Fluid outlet channel

114

Tank bottom

116

Container walling

117

Inside of the container wall

118

Groove of walls

120

Piston plate

121

Top of the piston plate

122

Groove of the piston plate

124

Basic body of the piston plate

126

Body of the piston plate

128

Seal, encircling the piston plate

130

Pressure valve

140

Vent and / or test connection

150

Extinguishing agent valve

200

Extinguishing agent line

300

jet

1000

Small extinguishing system

2000

small, closed room

D

Pressure medium

D

Pressure medium flow

HKM

maximum height of the piston plate

L

Extinguishing agent

L

Extinguishing agent flow

LBN

Length of the grooves in the wall

PB

operating pressure

PT

Transport printing

M

Focus

VB

Container cavity

VD

Pressure medium space

VL

Extinguishing agent room

Φ

chamfer

ϕ

Bevel angle

Claims (17)

Extinguishing agent container (100) at least comprising: a pressure vessel (110), comprising a vessel cavity (VB) clad by a vessel lid (112), a vessel bottom (114) and a vessel wall (116) arranged between vessel lid (112) and vessel bottom (114), - A piston plate (120) arranged in the container cavity (VB) and essentially oriented vertically to the container wall (116), which is designed to subdivide the container cavity (VB) into an extinguishing agent space (VL) and a pressure medium space (VD), the Extinguishing medium space (VL) is set up to hold an extinguishing medium (L) and the pressure medium space (VD) is set up to hold a pressure medium (D), in which - The container wall (116) on an inner side (117) in an upper region of the extinguishing agent space (VL) has at least one covering groove (118) starting at the container lid (112), which is set up to hold a fluid, in particular at least the pressure medium (D. ), to lead and - The piston plate (120) on an upper side (121), which faces the extinguishing agent space (VL), has at least one piston plate groove (122) which is set up to guide a fluid, in particular at least the pressure medium (D). The extinguishing agent container (100) according to claim 1, further comprising: - A pressure medium valve (130), which is set up to fill the pressure medium chamber (VD) with a pressure medium (D) and is preferably arranged in the tank bottom (114). The extinguishing agent container (100) according to claim 1 or 2, further comprising: - A ventilation and / or test connection (140), which is set up to vent the pressure medium chamber (VD) and also or alternatively to check the pressure medium chamber (VD), and in particular the pressure medium (D) in the pressure medium chamber (VD), and is preferably arranged in the container bottom (114). The extinguishing agent container (100) according to one of the preceding claims, further comprising: - An extinguishing agent valve (150) which is set up to hold an extinguishing agent (L) under a transport pressure (PT) in the extinguishing agent space (VL) and under an operating pressure (PB) out of the extinguishing agent space (VL) and preferably in or is arranged on the container lid (112). Extinguishing agent container (100) according to any one of the preceding claims, wherein - The container wall (116) on the inside (117) in the area of the extinguishing agent space (VD) has at least two wall grooves (118, 118 ', 118 ", 118'''), which are preferably arranged symmetrically, in particular mirror-symmetrically, to one another. The extinguishing agent container (100) according to claim 5, wherein - The container wall (116) on the inside (117) in the area of the extinguishing agent space (VL) has four wall grooves (118, 118 ', 118 ", 118'''), which are in particular offset by 90 °. Extinguishing agent container (100) according to any one of the preceding claims, wherein - The piston plate (120) on the top (121), which faces the extinguishing agent space (VL), has at least two piston plate grooves (122, 122 '), which run completely through the top (121) and are preferably at a center (M) , in particular cross perpendicularly. Extinguishing agent container (100) according to any one of the preceding claims, wherein - The piston plate (120) has a base body (124) and a body (126), the piston plate grooves (122) being arranged in the body (126) and the body (126) being tapered, in particular in such a way that between the container wall (116 ) and piston plate (120) a bevel is formed which runs around the body (126), Extinguishing agent container (100) according to any one of the preceding claims, wherein - The piston plate (120) has at least one peripheral seal (128, 128 '), which is preferably arranged on the base body (124). Extinguishing agent container (100) according to any one of the preceding claims, wherein - The walling grooves (118, 118 ', 118 ", 118''') each have a groove length (LBN) that is greater than a maximum height (HKM) of the piston plate (120). Extinguishing agent container (100) according to any one of the preceding claims, wherein - The grooves (118, 122) are arranged in such a way that when the piston plate (120) moves, a fluid-conducting channel (118, 122) is formed, which is set up to provide the piston plate with a fluid, in particular the pressure medium (D), to flow around at least partially. Extinguishing system, in particular small extinguishing system for object protection (1000), at least comprising: - an extinguishing agent container (100) according to one of claims 1 to 11, - An extinguishing agent line (200) connected to the extinguishing agent container (100) and - At least one nozzle (300) connected to the extinguishing agent line (200), which is set up to dispense an extinguishing agent (L) that comes from the extinguishing agent container. Method for transporting an extinguishing agent (L) by means of an extinguishing agent container (100) having an extinguishing agent space (VL) and a pressure medium space (VD), in particular by means of an extinguishing agent container (100) according to one of claims 1 to 10, at least comprising the steps: - Providing the extinguishing agent container (100); - Filling the extinguishing agent space (VL) with an extinguishing agent (L) so that the extinguishing agent space (VL) has an atmospheric pressure; and - Optional: Transport of the extinguishing agent container (100), preferably with a transport device. Method for filling an extinguishing agent container (100) having an extinguishing agent chamber (VL) and a pressure medium chamber (VD), in particular an extinguishing agent container (100) according to one of Claims 1 to 10, at least comprising the steps: - Providing the extinguishing agent container (100); - Optional: cleaning the extinguishing agent chamber (VL) and the pressure medium chamber (VD), especially using a cleaning agent; - Filling the extinguishing agent space (VL) with an extinguishing agent (L) so that the extinguishing agent space (VL) has an atmospheric pressure; - Optional: filling the pressure medium chamber (VD) with a pressure medium so that the pressure medium chamber (VD) has an operating pressure (PB), especially after the extinguishing medium chamber (VL) has been filled. Method for dispensing an extinguishing agent (L), in particular by means of an extinguishing agent container (100) according to one of claims 1 to 10, at least comprising the step: - Release of the extinguishing agent (L) by opening a fluid outlet channel (113) of an extinguishing agent container (100), the opening preferably taking place by triggering a valve, the opening leading to a movement of a piston plate (120) in the extinguishing agent container (100), which the extinguishing agent (L) presses out of the extinguishing agent container (100), a pressure medium (D) flowing around the piston plate (120) preferably at least temporarily or depending on the position of the piston plate in the extinguishing agent container. A method of dispensing an extinguishing agent according to claim 15, wherein a pressure medium flows around the piston plate (120) when an upper side (121) of the piston plate (120) is at a predetermined distance (X) from an inside of a container lid (112) which is smaller than a difference of a groove length (L _BN ), which is defined by a groove (118) on a container wall (116), and a maximum height of the piston plate (H _KM ). A method of dispensing an extinguishing agent according to claim 16, wherein after a stop of the top (121) of the piston plate (120) on the inside of the container lid (112), a pressure medium flows through the fluid outlet channel.

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