EP3446758A1 - Mixing device and method for operating a mixing device - Google Patents

Abstract

Method for operating a fire-extinguishing device (1), comprising at least the following steps:
a) activating at least one sprinkler (3) of the fire extinguishing device (1) in the event of a fire, so that an extinguishing agent (13) is sprayed by means of the at least one sprinkler (3) for extinguishing the fire;
b) monitoring the deletion process by at least one sensor (2); and
c) deactivating the at least one sprinkler (3) as a function of a sensor signal of the at least one sensor (2).

In addition, the present invention relates to a fire-extinguishing device (1) with a controller set up to carry out the method according to the invention.

Description

The present invention relates to a method for operating a fire-extinguishing device and to a fire-extinguishing device with a control device set up for carrying out the method with which fires in buildings can be extinguished.

Automatic fire extinguishing devices with sprinklers are known from the prior art, by means of which fires in buildings, industrial plants or ships can be extinguished. The fire extinguishers' sprinklers are regularly sealed with glass ampoules filled with liquid and air. In the event of a fire, the liquid heats up so that the liquid expands and the glass ampoule breaks. As a result, the nozzles of the sprinkler are released, so that an extinguishing agent can escape from the sprinkler. Furthermore, the activation of the sprinkler by means of separate smoke detectors and / or carbon monoxide detectors is known. They can warn persons who are staying in a danger zone acoustically or optically and / or inform the fire brigade. In this way, the people can be brought to safety in time and / or the fire as early as possible to be combated by the fire department. A disadvantage of the known fire-extinguishing equipment, however, is that the fire-extinguishing device must be switched off manually after extinguishing the fire, so that often more than required for extinguishing the fire extinguishing agent quantities are sprayed through the sprinklers. This can cause additional damage, such as water damage, to buildings, industrial facilities or ships.

The object of the invention is therefore to solve the problems described with reference to the prior art at least partially and in particular to provide a method for operating a fire extinguishing device and a fire extinguishing device with which additional damage to buildings, industrial plants or ships can be avoided.

This object is achieved with a method and a fire extinguishing device according to the features of the independent claims. Further advantageous embodiments of the invention are specified in the dependent claims. It should be noted that the features listed individually in the dependent claims can be combined with each other in any technologically meaningful manner and define further embodiments of the invention. In addition, the features specified in the claims are specified and explained in more detail in the description, wherein further preferred embodiments of the invention are shown.

1. a) Aktivieren zumindest eines Sprinklers (3) der Feuerlöscheinrichtung (1) im Falle eines Brands, sodass ein Löschmittel (13) mittels des zumindest einen Sprinklers (3) zum Löschen des Brands versprüht wird;
2. b) Überwachen des Löschvorgangs durch zumindest einen Sensor (2); und
3. c) Deaktivieren des zumindest einen Sprinklers (3) in Abhängigkeit von einem Sensorsignal des zumindest einen Sensors (2).

A method for operating a fire-extinguishing device, which has at least the following steps, contributes to this:

1. a) activating at least one sprinkler (3) of the fire extinguishing device (1) in the event of a fire, so that an extinguishing agent (13) is sprayed by means of the at least one sprinkler (3) for extinguishing the fire;
2. b) monitoring the deletion process by at least one sensor (2); and
3. c) deactivating the at least one sprinkler (3) as a function of a sensor signal of the at least one sensor (2).

The fire extinguishing device is in particular an automatic and / or permanently operational technical installation for detecting and controlling fires or fires. For this purpose, the fire extinguisher is installed in particular in buildings, industrial plants or ships. The fire extinguishing device has at least one sensor by means of which fires or fires in the building can be detected. Furthermore, the fire-extinguishing device has at least one sprinkler, which in particular comprises at least one nozzle for spraying an extinguishing agent, such as water. The at least one sensor is arranged in particular on a ceiling or wall or can be integrated in sanitary fittings.

In the case of a fire, the at least one sprinkler is activated in step a). The activation of the at least one sprinkler can be effected by a mechanical element of the sprinkler. The mechanical element may in particular be a glass ampule of the at least one sprinkler filled with a liquid and / or air, which upon reaching a certain temperature, for example approximately 60 to 80 ° C. (Celsius), due to a pressure arising in the glass ampule bursts and thereby releases in particular at least one nozzle of the at least one sprinkler for the extinguishing agent. Alternatively, the activation of the at least one sprinkler can take place by means of the at least one sensor. For this purpose, the at least one sensor can (continuously) monitor an environment of the at least one sensor for fires and, upon detection of a fire, activate the at least one sprinkler. For this purpose, the at least one sensor and / or a controller connected to the at least one sensor can be connected to at least one valve for the extinguishing agent. Each fire extinguisher sprinkler can have its own valve. Alternatively, the valve can also be assigned to a plurality of sprinklers, so that the plurality of sprinklers can be activated together with the valve. For this purpose, the valve may be arranged in a supply line, via which the extinguishing agent of the plurality of sprinklers can be fed. In a detection of a fire can be initiated by opening the at least one valve or by the bursting of the glass ampoule in step a) (directly and / or automatically) a deletion of the fire through the at least one sprinkler of the fire extinguishing device. For this purpose, the at least one sensor can, for example, send a sensor signal to the at least one sprinkler, which signals at least one valve of the extinguishing agent and / or a control of the fire extinguisher, which signals a fire. For this purpose, the sensor may be connected to the sprinkler, the at least one valve and / or the control of the fire-extinguishing device in a data-conducting manner. The connection can in particular be wired or via a radio link, such as by wireless or mobile, directly or indirectly via a router, a hub or a (cloud-based and / or Internet-connected) server. The deletion process is started by activating the at least one sprinkler of the fire extinguishing device, for example by the at least one sensor and / or the controller. After activation, the at least one sprinkler is in a fire extinguishing mode. This status can be reported by the at least one sprinkler to other devices (for example to other sprinklers, mobile devices, smartphones, servers, clouds, etc.) or a user as a warning message.

The at least one sensor monitors the deletion process in step b). In this case, it can be determined by the at least one sensor that the fire has been extinguished and / or whether there is still a fire in the monitoring area of the at least one sensor. Furthermore, a corresponding sensor signal can be output by the at least one sensor. The monitoring takes place in particular continuously. The at least one sensor can for example measure a temperature and / or detect the presence of smoke. The detection of smoke can be done, for example, optically.

As soon as the at least one sensor signals that the fire has been extinguished (for example, when a value measured by the at least one sensor falls below a limit value), the at least one sprinkler is deactivated in step c). The deactivation of the at least one sprinkler can in particular be effected by the control connected to the at least one sensor. This avoids that further extinguishing agent is sprayed through the at least one sprinkler, which is no longer required to extinguish the fire, but can cause damage to the building, the industrial plant or the ship. If the fire flares up again, this is detected by the at least one sensor and a renewed activation of the at least one sprinkler can take place. The deactivation of the at least one sprinkler can be delayed, in particular, until none of the sensors of the fire extinguishing device more detects a fire.

Moreover, it is advantageous if the at least one sensor is a digital sensor. A digital sensor is to be understood in particular as meaning a sensor which outputs a digital output signal or sensor signal.

It is also advantageous if the at least one sensor is at least one temperature sensor, smoke sensor, carbon monoxide sensor and / or optical sensor.

Moreover, it is advantageous if the activation of the at least one sprinkler takes place in step a) by the at least one sensor.

Furthermore, it is advantageous if in step a) at least one valve for an extinguishing agent is opened. The at least one valve is arranged for this purpose in particular in an extinguishing medium line of the at least one sprinkler and / or electrically actuated. The opening of the at least one valve takes place in particular by means of a controller.

Moreover, it is advantageous if in step c) at least one valve for an extinguishing agent is closed. For example, the valve may be a valve of a main water line of the building. Alternatively, each sprinkler can be assigned a separate valve. The closing of the at least one valve takes place in particular by means of a controller.

Preferably, the valve is a main water valve of a building. As a result, a predeterminable number or all sprinklers of the fire extinguishing device can be deactivated with a single valve.

In addition, it is advantageous if the at least one sensor is activated continuously. This means, in particular, that the at least one sensor constantly monitors whether there is a fire in its monitoring area. Alternatively, an activation of the at least one sensor can also take place only after activation of the at least one sprinkler.

Furthermore, it is advantageous if the at least one sensor and the at least one sprinkler communicate with one another via a radio link. The radio connection can be, for example, a WLAN connection or a mobile radio connection.

It is also advantageous if the controller sends operating information of the fire-extinguishing device to a mobile device or a central monitoring device. The operating information can be, for example, an alarm signal in the case of a fire or the activation or deactivation of the at least one sprinkler. The mobile device may be, for example, a smartphone. The central monitoring device can in particular be a server or an (Internet) cloud. Furthermore, the fire extinguishing device can be controlled by means of the mobile device, the server and / or the cloud. For example, the mobile device can be used to activate and / or deactivate the at least one sprinkler.

• zumindest einen Sensor;
• zumindest einen Sprinkler; und
• eine Steuerung, die zur Durchführung des hier erläuterten Verfahrens eingerichtet ist.

Furthermore, a fire extinguishing device is proposed, which has at least the following components:

• at least one sensor;
• at least one sprinkler; and
• a controller that is set up to carry out the method explained here.

The fire extinguishing device is arranged in particular in a building, an industrial plant or a ship. For further details, reference is made to the description of the method according to the invention.

• Fig. 1: ein Gebäude mit einer ersten Variante einer Feuerlöscheinrichtung; und
• Fig. 2: ein Gebäude mit einer zweiten Variante einer Feuerlöscheinrichtung.

The invention and the technical environment will be explained in more detail with reference to FIGS. It should be noted that the figures show particularly preferred embodiments of the invention, but these are not limited thereto. The same components are provided in the figures with the same reference numerals. They show by way of example and schematically:

• Fig. 1 : a building with a first variant of a fire-extinguishing device; and
• Fig. 2 : a building with a second variant of a fire extinguisher.

The Fig. 1 shows a building 6 with a first variant of a fire extinguishing device 1. The fire extinguishing device 1 comprises a sensor 2 which is fixed to a ceiling 11 of a room 12 of the building 6. Furthermore, the fire extinguishing device 1 comprises a sprinkler 3, which is also attached to the ceiling 11 of the space 12 of the building 6. The sensor 2 and the sprinkler 3 are connected in a data-conducting manner via a network connection 7 to a controller 4, which in turn is connected to a router 9 in data-conducting fashion. The network connection 7 is either wired or via radio connection. In a fire in the room 12 of the building 6 this is detected by the sensor 2. The sensor 2 then sends a signal indicating the fire sensor via the network connection 7 to the controller 4. Upon receipt of the sensor signal opens the controller 4 via the network connection 7, a valve 5 in an extinguishing agent line 10, so that an extinguishing agent 13, which is here to Water is passed from an extinguishing agent source 14 to the sprinkler 3 and sprayed by the sprinkler 3 in the space 12 for extinguishing the fire. At the same time, the controller 4 sends an alarm signal via the network connection 7 and a cloud system 15 to a mobile device 8, which is a smartphone in this case, so that residents of the building 6 are warned of the fire. The mobile device 8 may alternatively also be connected directly to the router 9. While the sprinkler 3 is activated and extinguishes the fire in the room 12, the sensor 2 monitors the deletion process. If the fire has been successfully extinguished, the sensor 2 sends a corresponding signal via the network connection 7 to the controller 4, which then closes the valve 5 so that the sprinkler 3 is deactivated.

The Fig. 2 shows a building 6 with a second variant of a fire extinguishing device 1. The second variant of the fire extinguishing device 1 differs from that in the Fig. 1 shown first variant of the fire extinguishing device 1 characterized in that the sensor 2 and the sprinkler. 3 over the network connection 7 (in the Fig. 2 shown with dashed lines) are directly connected to the router 9 data leading. The controller 4 can be part of the cloud system 15 here (as software and / or hardware). This means in particular that the controller 4 does not have to be physically located in the building 6. Furthermore, this means, in particular, that the fire-extinguishing device 1 can be controlled by the cloud system 15 or that the control of the fire-extinguishing device 1 is carried out by the cloud system 15. The control of the fire extinguishing device 1 can also be done at least partially by a (direct) communication between the sensor 2, the valve 5 and / or the sprinkler 3. Incidentally, the first variant of the fire-extinguishing device 1 and the second variant of the fire-extinguishing device 1 are configured identically.

By means of the present invention it can be prevented that unnecessarily large quantities of the extinguishing agent are used, so that (water) damage to the building 6 can be avoided.

LIST OF REFERENCE NUMBERS

1

Fire fighting equipment

2

sensor

3

sprinkler

4

control

5

Valve

6

building

7

Network Connection

8th

mobile device

9

router

10

Extinguisher line

11

ceiling

12

room

13

extinguishing Media

14

Extinguishing media source

15

Cloud System

Claims (10)

Method for operating a fire-extinguishing device (1), comprising at least the following steps: a) activating at least one sprinkler (3) of the fire extinguishing device (1) in the event of a fire, so that an extinguishing agent (13) is sprayed by means of the at least one sprinkler (3) for extinguishing the fire; b) monitoring the deletion process by at least one sensor (2); and c) deactivating the at least one sprinkler (3) as a function of a sensor signal of the at least one sensor (2). Method according to claim 1, wherein the activation of the at least one sprinkler (3) in step a) by the at least one sensor (2). Method according to one of the preceding claims, wherein the at least one sensor (2) is a temperature sensor, smoke sensor, carbon monoxide sensor or optical sensor. Method according to one of the preceding claims, wherein in step a) a valve (5) for the extinguishing agent (13) is opened. Method according to one of the preceding claims, wherein in step c) a valve (5) for the extinguishing agent (13) is closed. Method according to claim 4, wherein the valve (5) is a main water valve of a building (6). Method according to one of the preceding claims, wherein the at least one sensor (2) is activated continuously. Method according to one of the preceding claims, wherein the at least one sensor (2) and the at least one sprinkler (3) communicate with each other via a network connection (7). Method according to one of the preceding claims, wherein operating information of the fire extinguishing device (1) to a mobile device (8) or a central monitoring device are sent. Fire-extinguishing apparatus (1), comprising at least the following components: - At least one sensor (2); - at least one sprinkler (3); and - A controller (4), which is adapted to carry out a method according to one of the preceding claims.

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