JP2023068011A - Fire-fighting equipment - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide fire-fighting equipment capable of meeting legal installation standards by providing functions of both automatic fire-fighting equipment and automatic fire alarm equipment, and also capable of achieving down-sizing and cost reduction of the equipment.

SOLUTION: Fire-fighting equipment includes automatic fire-fighting equipment 101 having a plurality of fire sensors 15a and 15b that sense a fire occurring in a building and output a fire detection signal including information on a location of the fire, and a receiver 11 that receives the fire detection signal output from the fire sensors 15a and 15b, which is actuated when the fire detection signal is received by the receiver 11, and executes fire fighting at the location of the fire. The fire-fighting equipment further includes a zone acoustic device 23 for specifying the location of the fire and notifying of an occurrence of the fire when the fire detection signal is received by the receiver 11.

SELECTED DRAWING: Figure 1

COPYRIGHT: (C)2023,JPO&INPIT

Description

TECHNICAL FIELD The present invention relates to a fire extinguishing system for detecting and extinguishing a fire that occurs in a building, and more particularly, to a technology that also serves as an automatic fire alarm system for detecting a fire and reporting the outbreak of the fire.

Conventionally, as described in Patent Document 1, for example, fire extinguishing equipment that extinguishes a fire by activating a sprinkler system or a package-type automatic fire extinguishing system when a fire breaks out in a building such as a hospital has been known. there is The fire extinguishing equipment has a plurality of fire detectors installed at appropriate locations in the building, and when a fire breaks out, a receiver receives fire detection signals output from the fire detectors. The fire detection signal identifies the location of the fire and activates sprinkler equipment and package-type automatic fire extinguishing equipment to extinguish the fire.

On the other hand, buildings of a certain size or larger are required to install an automatic fire alarm system to notify the occurrence of a fire, in addition to the fire extinguishing equipment described above. An automatic fire alarm system installs a plurality of fire detectors at suitable locations in a building, and when a fire breaks out, it detects it and emits an alarm signal. By sounding a buzzer or turning on an alarm light in response to the notification signal, it is possible to notify people around the fire of the outbreak and the location of the outbreak.

Japanese Patent No. 4652148

As described above, the automatic fire alarm system and the fire extinguishing system are installed separately, and no consideration is given to sharing the equipment installed in the automatic fire alarm system and the equipment installed in the fire extinguishing system. . For example, although a fire detector for detecting the occurrence of fire is used in both the automatic fire alarm system and the fire extinguishing system, the actual situation is that they are installed separately.

By using equipment that has been certified as a fire extinguishing system and equipment that has been certified as an automatic fire alarm system, it is possible to comply with the laws and regulations of the automatic fire alarm system, ensure its performance, and operate as a fire extinguishing system. to do In addition, the above "certification" means that it is confirmed that the product meets the technical standards stipulated by laws and regulations, such as the certification system stipulated in the Fire Service Act, or that the product has been certified by a third party organization. It refers to products that have been evaluated as having the same performance as products that meet technical standards.

In this way, the equipment installed in the automatic fire alarm system and the equipment installed in the fire extinguishing system have not been shared in the past, and the increase in the number of equipment increases the size of the equipment and the high cost of maintenance and inspection. There was a problem of inviting change.

The present invention was made to solve such conventional problems, and the purpose thereof is to satisfy the legal installation standards by providing both the functions of an automatic fire extinguishing system and an automatic fire alarm system. To provide a fire extinguishing equipment capable of reducing the size of the equipment and reducing the cost.

In order to achieve the above object, the present invention provides a plurality of fire detectors for detecting a fire occurring in a building and outputting a fire detection signal including information on the location of the fire, and A receiving device for receiving a fire detection signal, a fire extinguishing agent storage box for storing fire extinguishing agent used for extinguishing the fire, a fire extinguishing agent outlet for discharging the extinguishing agent, and a fire extinguishing agent stored in the fire extinguishing agent storage box. A fire extinguishing agent pipe leading to a discharge port, a selection valve for setting the route of the fire extinguishing agent pipe, connected to the fire sensor and the selection valve, and connected to the receiving device via a transmission line an automatic fire alarm system having a district acoustic device that notifies the occurrence of a fire when the fire detection signal is received by the receiving device; and extinguishing the fire at the fire location. and automatic fire extinguishing equipment.

According to the present invention, by providing both the functions of a fire extinguishing system and an automatic fire alarm system, it is possible to satisfy legal installation standards and to reduce the size and cost of the system. Therefore, there is no need to construct and install the automatic fire alarm system and the fire extinguishing system separately, which can be expected to shorten the construction period and reduce construction costs. Furthermore, since the control panel for controlling the fire extinguishing equipment and the control panel for controlling the automatic fire alarm equipment can be shared, the installation space can be saved.

FIG. 1 is a system diagram showing the configuration of a fire extinguishing system according to an embodiment of the present invention. FIG. 2 is an explanatory diagram showing the appearance of the receiving device of the fire extinguishing equipment according to the embodiment of the present invention. FIG. 3 is a display example of the display unit of the receiving device when a fire breaks out. FIG. 4 is a floor plan of a building in which the fire extinguishing equipment according to the embodiment of the present invention is arranged. FIG. 5 is a layout drawing of a building in which the fire extinguishing equipment according to the embodiment of the present invention is arranged. FIG. 6 is an explanatory diagram showing installation standards for fire detectors to be installed in automatic fire alarm equipment and automatic fire extinguishing equipment. FIG. 7 is a flow chart showing the processing procedure of the fire extinguishing equipment according to the first embodiment of the present invention, showing the operation when the fire detector detects the occurrence of a fire. FIG. 8 is a flow diagram of the processing procedure shown in FIG. FIG. 9 is a flowchart showing the processing procedure of the fire extinguishing equipment according to the first embodiment of the present invention, showing the operation when the manual activation device is operated and the fire detection signal is output. FIG. 10 is a flow diagram of the processing procedure shown in FIG. FIG. 11 is a flow chart showing the processing procedure of the fire extinguishing equipment according to the first embodiment of the present invention, showing the operation when notifying the occurrence of a fire by a fire alarm signal sensed by a fire sensor. FIG. 12 is a flow diagram of the processing procedure shown in FIG. FIG. 13 is a flow chart showing the processing procedure of the fire extinguishing equipment according to the second embodiment of the present invention.

BEST MODE FOR CARRYING OUT THE INVENTION Hereinafter, embodiments of the present invention will be described with reference to the drawings. Note that the term “fire extinguishing” as used in the present embodiment is a concept that includes “extinguishing” a fire that is currently occurring and “fire prevention” for preventing the occurrence of a fire.

[Description of the first embodiment]
FIG. 1 is a system diagram showing the configuration of a fire extinguishing system according to a first embodiment of the present invention. As shown in FIG. 1, the fire extinguishing equipment according to the first embodiment includes an automatic fire extinguishing equipment 101 and an automatic fire alarm equipment 102 .

The automatic fire extinguishing equipment 101 includes a receiver 11, a fire extinguishing agent storage box 12, selection valves 13a to 13c, a repeater 14, fire detectors 15a and 15b, fire extinguishing agent outlets 16a to 16d, and a manual starter. 17, a line 18 for extinguishing agent, and a transmission line 19. The fire detectors 15a and 15b, the selection valve 13c, and the fire extinguishing agent outlets 16a to 16d form a fire extinguishing section 51 installed in an alert section (for example, living room, washroom, corridor, etc.) in the building.

FIG. 1 shows one fire extinguishing section 51, but as shown in FIG. 4, which will be described later, a fire extinguishing section is provided for each section such as a living room, washroom, and corridor in the building. Therefore, the automatic fire extinguishing equipment 101 is usually provided with a plurality of fire extinguishing compartments 51 .

In addition, as the automatic fire extinguishing equipment 101, automatic fire extinguishing equipment that radiates all at once, foam fire extinguishing equipment, water discharge type sprinkler equipment that sprays water from the ceiling, open sprinkler equipment, water spray fire extinguishing equipment that sprays water from walls, ceilings, etc. can be used. Furthermore, as a fire extinguishing agent used in the automatic fire equipment 101, an inert gas fire extinguishing equipment using an inert gas such as a mixed gas of nitrogen, argon, and carbon dioxide, a halide fire extinguishing equipment using a halide, and a powder fire extinguishing equipment using powder , foam-based fire extinguishing systems can be used. In addition, in the first embodiment, a fire extinguishing system using powder, foam, infiltrating agent, etc. will be described, and in the second embodiment described later, an example using an inert gas or a halogenated gas will be described.

The fire extinguishing agent storage box 12 is a tank that stores a fire extinguishing agent used for extinguishing a fire, and is provided at an appropriate location inside or outside the building (for example, on the roof). Examples of fire-extinguishing agents include powder fire-extinguishing agents, foam fire-extinguishing agents, and infiltrating agents. Examples of powder fire extinguishing agents include sodium hydrogen carbonate, potassium hydrogen carbonate, and phosphates. The foam fire extinguishing agent covers the surface of the combustible material with foam, and extinguishes the fire by combining the cooling effect of the moisture contained in the foam and the suffocating and blocking effects of the coated foam layer.

The fire extinguishing agent discharge ports 16a to 16d are discharge ports for spraying the fire extinguishing agent stored in the fire extinguishing agent storage box 12. For example, one installation location has four discharge ports branched from the extinguishing agent pipe 18. is provided. Note that the number of discharge ports is not limited to four.

The fire extinguishing agent pipe 18 is a pipe for guiding the fire extinguishing agent stored in the extinguishing agent storage box 12 to the extinguishing agent outlets 16a to 16d.

The selection valves 13 a to 13 c are provided at appropriate locations on the fire extinguishing agent pipe 18 and controlled to open or close by control signals output from the receiver 11 . By controlling the opening and closing of the selection valves 13a to 13c, the route of the fire extinguishing agent pipe 18 is set so that the extinguishing agent is introduced into the desired extinguishing agent outlet. For example, when the fire extinguishing agent is sprayed from the fire extinguishing agent outlets 16a to 16d shown in FIG. 1, the selection valves 13b and 13c are opened and the other selection valves are closed. By doing this, the fire extinguishing agent output from the fire extinguishing agent storage box 12 is supplied only to the fire extinguishing agent outlets 16a to 16d, and is sprayed in the section where the extinguishing section 51 is installed. In addition, although three selection valves 13a to 13c are shown in FIG. are appropriately installed according to the arrangement of the

The fire detectors 15a and 15b are sensors that are installed on the ceiling of the security zone or the like, and detect heat and smoke to notify the occurrence of fire. In the automatic fire extinguishing equipment 101, a group of two fire detectors is installed in each security zone. That is, two fire detectors 15a and 15b are installed close to each other to form a set of fire detectors. This prevents the fire extinguishing agent from being sprayed unnecessarily due to malfunction of the fire detector. This embodiment shows an example in which two fire sensors 15a and 15b are installed close to each other, but three or more fire sensors may constitute a set of fire sensors. The fire detectors 15a and 15b may be configured to sense light or electromagnetic waves, or to pick up an image of the surroundings to detect the occurrence of flames, in addition to the configuration for sensing heat and smoke. A combination of

When the fire detectors 15a and 15b detect the occurrence of fire or smoke, the fire sensors 15a and 15b output fire occurrence signals indicating the occurrence of fire. The fire signal contains location information for identifying the compartment where the fire broke out.

The manual activation device 17 is an operator manually operated by an operator such as a person who discovered a fire, and by selecting and operating a section (living room, etc.) in which the fire extinguishing agent is to be sprayed, an extinguishing agent release command signal is generated. Output. The release command signal is transmitted to the receiving device 11 .

The repeater 14 is a device that relays when connecting each device such as the fire sensors 15a and 15b, the selection valve 13c, the manual activation device 17, and the receiver 11 via the transmission line 19. FIG.

The receiving device 11 receives the fire detection signals output from the fire sensors 15a and 15b when the occurrence of fire is detected by the fire sensors 15a and 15b, and the fire extinguishing agent storage box 12 and each A control signal is output to the selection valves 13a to 13c. Specifically, the section where the fire broke out is identified based on the position information included in the fire detection signal, and the fire extinguishing section provided in the identified section is activated to extinguish the fire. For example, when activating the fire extinguishing section 51 shown in FIG. 1, the output valve of the fire extinguishing agent storage box 12 is opened to release the extinguishing agent, the selection valve 13a is closed, and the selection valves 13b and 13c are closed. are both “open”. The fire extinguishing agent discharged from the fire extinguishing agent storage box 12 reaches the extinguishing agent outlets 16a to 16c via the extinguishing agent pipe 18 and the selection valves 13b and 13c. can be disseminated.

In this embodiment, an R-type receiver (R-type receiver) is used as the receiver 11 . As is well known, an R-type receiver (R-type receiver) transmits fire detection signals output from the fire detectors 15a and 15b through a transmission line 19, and receives fire detection signals output from the fire detectors 15a and 15b. The signal is converted into a digital signal by the repeater 14 and transmitted to the receiving device 11 . With such a configuration, the number of wires can be reduced, and the construction cost for wiring can be reduced. In other words, the R-type indicates a form of a transmitting/receiving device using a transmission signal between a sensor and a receiver and between a repeater and a receiver. It transmits and receives a transmission signal such as a fire detection signal as a unique message signal.

On the other hand, the automatic fire alarm system 102 shown in FIG. , and a transmitter 25 . Further, each repeater 21a to 21c is connected to the receiver 11 by a transmission line 26. FIG.

The gas detector 22 is installed in a living room or the like, detects a gas leak when it occurs, and outputs a gas leak occurrence signal to the receiver 11 via the repeater 21a.

The transmitter 25 is, for example, a push button operated by an operator, and when the transmitter 25 is operated, a fire occurrence signal is output. A fire occurrence signal is output to the receiving device 11 . The fire occurrence signal output from the transmitter 25 includes position information where the transmitter 25 is installed.

When a fire detection signal is input to the receiving device 11, the district sound device 23 sounds a buzzer sound (main sound) to report the occurrence of fire. Specifically, when a fire detection signal is output from the fire sensors 15a and 15b described above, or when a fire occurrence signal is output by operating the transmitter 25, the notification signal is output from the receiving device 11. . This notification signal is sent to the area sound system 23 via the repeater 21b, and the area sound system 23 emits a buzzer sound, so that people in the building can be notified of the occurrence of a fire.

Further, the receiving device 11 outputs a fire occurrence signal indicating that a fire has occurred to a smoke prevention device, an alarm device, or other devices via the repeater 21c. When a fire occurrence signal is output, for example, a smoke prevention device is operated to prevent smoke from entering the desired compartment, or to exhaust smoke from the desired compartment to the outside. Furthermore, by automatically transmitting a fire occurrence signal to the fire station, it is possible to promptly report the occurrence of a fire.

FIG. 2 is an explanatory diagram showing the appearance of the receiving device 11. As shown in FIG. As shown in FIG. 2, the receiving apparatus 11 includes an operation unit 111 for inputting various operations, display units 112 and 115 for displaying various information, a speaker 113 for outputting sounds such as warning sounds, and a printer 114. It has

FIG. 3 is a display example of information displayed on the display unit 115 of the receiving device 11. As shown in FIG. As shown in FIG. 3, when a fire occurs, the display unit 115 displays information indicating the occurrence of the fire and the place where the fire occurred.

[Installation example of fire extinguishing equipment]
Next, an example of installing the fire extinguishing equipment shown in FIG. 1 will be described with reference to a floor plan of a building (for example, a hospital) shown in FIG. As shown in FIG. 4, four living rooms 61, 62, 63, 64, a corridor 65, washrooms 66, 67, and a staircase 68 are provided in the building.

Outside the living room 64, three fire extinguishing agent storage boxes 12a, 12b, and 12c are provided. The fire extinguishing agent storage boxes 12a, 12b, and 12c are connected to fire extinguishing agent pipes 18a, 18b, and 18c via selection valves 13d, 13e, and 13f, respectively.

The fire extinguishing agent pipe 18 a is connected to the fire extinguishing section 51 c of the living room 63 and the fire extinguishing section 51 g of the washroom 67 . The fire extinguishing agent pipe 18 b is connected to the fire extinguishing section 51 b of the living room 62 , the fire extinguishing section 51 d of the living room 64 , and the fire extinguishing section 51 f of the washroom 66 . The fire extinguishing agent pipe 18c is connected to the fire extinguishing section 51a of the living room 61 and the fire extinguishing section 51e of the corridor. Each of the fire extinguishing compartments 51a-51g has the same configuration as the fire extinguishing compartment 51 shown in FIG. That is, it has two fire detectors, a selection valve, and four extinguishing agent outlets.

Further, the staircase 68 shown in FIG. 4 is not provided with a fire extinguishing section, but is only provided with a fire sensor 52 . By law, in hospitals, living rooms, washrooms, corridors, etc. must be protected by automatic fire extinguishing equipment. On the other hand, elevator shafts, staircases, etc. do not need to be protected by automatic fire extinguishing equipment, but should be alerted by automatic fire alarm equipment. Therefore, only the fire detector 52 is provided in the stairwell 68 .

That is, in the building, from the first compartment (such as the above living room) where installation of automatic fire extinguishing equipment is obligatory, and the second compartment (such as the above staircase) where installation of automatic fire extinguishing equipment is exempted. Then, the automatic fire extinguishing equipment extinguishes the fire when a fire detection signal is output from the fire sensor installed in the first section. Also, the district acoustic device 23 (see FIG. 1) notifies of a fire when a fire detection signal is output from the fire sensors installed in the first and second sections.

FIG. 5 is an explanatory diagram showing another example of installing fire extinguishing equipment. FIG. 5 shows how fire extinguishing equipment is installed in a hospital, and shows an example where the first floor A is a nurse's station and the second floor B is a living room. As shown in FIG. 5, the first floor A is provided with a receiver 11 and a fire extinguishing agent storage box 12a. Also, on the second floor B, two fire detectors 15c and 15d, selection valves 13g and 13h, and four extinguishing agent outlets 16e, 16f, 16g and 16h are provided. Furthermore, a fire extinguishing agent storage box 12d is provided on the ceiling of the living room on the second floor B.

Therefore, when a fire breaks out on the second floor B, the fire is detected by the fire detectors 15c and 15d, and the receiving device 11 notifies the person stationed at the nurse station of the fire. Further, the fire extinguishing agent is discharged from the extinguishing agent storage box 12d and sprayed from the respective extinguishing agent outlets 16e to 16h to extinguish the fire.

[Description of standard for installation of fire detectors for fire extinguishing equipment]
In the present embodiment, as described above, the fire detectors 15a and 15b and the receiving device 11 used in the automatic fire extinguishing equipment 101, which is required to be installed under the Fire Service Act, are also required to be installed under the Fire Service Act. By sharing the fire sensor and receiving device used in the automatic fire alarm system 102, the structure of the entire system is simplified, the installation space is saved, and the installation cost is reduced.

FIG. 6 is an explanatory diagram showing installation conditions for fire detectors of automatic fire extinguishing equipment and automatic fire alarm equipment (abbreviated as “self-fire alarm” in the figure).

As shown in Figure 6, for automatic fire alarm equipment, if the installation height of the fire detector (ceiling height if installed on the ceiling) is less than 4.0m It is obligatory to install one smoke detector per 150m2, and one differential type and constant temperature special type fire detector per 40m2. Other conditions are as shown in the figure. The "smoke detection type" is a type that detects fire by detecting the concentration of smoke, and the "differential type 2 type" is a type that detects a fire by detecting the difference in temperature within a certain period of time. Yes, and the "constant temperature special type" is a type that detects fire when the temperature exceeds a certain value.

On the other hand, for automatic fire extinguishing equipment, if the installation height of the fire detector is less than 6.0m, one set must be installed per 21m2. Other conditions are as shown in the figure. Note that "one set" indicates that two or three or more fire detectors are closely arranged at the same point.

As can be understood from the fire detector installation conditions shown in Figure 6, the installation conditions (the number of fire detectors to be installed per unit area) stipulated in the installation standards for automatic fire extinguishing equipment are The conditions are stricter than the installation conditions for fire detectors stipulated in the standards. Therefore, by sharing some or all of the fire detectors installed in the automatic fire extinguishing equipment and the fire detectors installed in the automatic fire alarm equipment, the total number of fire detectors to be installed is reduced. . However, in areas other than the automatic fire extinguishing system alarm zone, such as the staircase 68 shown in FIG. 2, a fire sensor is installed separately from the automatic fire extinguishing system.

Further, by sharing the receiving device 11 for comprehensively controlling the automatic fire extinguishing equipment 101 with the automatic fire alarm equipment 102, the control panel installed in the building is unified.

Since the installation conditions of the fire detectors shown in FIG. 6 are installation standards, they can be installed with a higher density. For example, "one set per 21m2" of the installation condition of the fire detector of the automatic fire extinguishing equipment may be changed to "at least one set per 21m2".

[Description of the operation of the first embodiment]
Next, the operation of the fire extinguishing equipment according to the first embodiment will be described with reference to the flowcharts and flowcharts shown in FIGS. 7 to 12. FIG.

(Activation of Fire Extinguishing Equipment)
FIG. 7 is a flow chart showing the operation of the automatic fire extinguishing equipment 101 when a fire breaks out in the protection range inside the building, and FIG. 8 is a flow chart corresponding to FIG. Note that the step numbers shown in FIG. 7 and the step numbers shown in FIG. 8 are described in association with each other.

First, in step S11 of FIGS. 7 and 8, for example, when a fire breaks out in a living room in a building, the fire detectors 15a and 15b provided in this living room detect the fire.

In step S<b>12 , when a fire is detected by one of the fire sensors (here, fire sensor 15 a ), a fire detection signal is transmitted to receiver 11 via transmission line 19 .

In step S13, the receiving device 11 displays various types of information regarding the occurrence of fire on the display unit 112 shown in FIG. For example, as shown in FIG. 3, information specifying the position where the fire occurred, such as "fire, 02nd floor, 058 district 151, 1st building", is displayed.

In step S14, the receiver 11 outputs a fire occurrence signal. The fire occurrence signal is output to the district sound equipment 23 installed in appropriate places (corridor, living room, guard room, etc.) in the building via the repeater 21b.

Furthermore, in step S15, the fire occurrence signal is output to the smoke prevention device and the alarm device via the repeater 21c. As a result, a smoke prevention device installed at a suitable place in the building is activated, and the smoke generated at the fire site and its surroundings is discharged to the outside. Alternatively, an alarm device such as a fire light is activated.

In step S16, the receiving device 11 determines whether the two fire sensors 15a, 15b are operating at the same time.

If it is determined that the two fire sensors 15a and 15b are operating simultaneously, the receiving device 11 activates the automatic fire extinguishing equipment 101 in step S17.

In step S18, the receiving device 11 sprays the fire extinguishing agent. Specifically, the receiver 11 outputs an actuation signal to the fire extinguishing agent storage box 12 shown in FIG. Furthermore, the opening/closing of the selection valve is controlled so that the fire extinguishing agent is supplied to the fire extinguishing agent pipe 18 leading to the fire extinguishing agent outlet in the living room where the fire is occurring. For example, when spraying the fire extinguishing agent from the fire extinguishing agent outlets 16a to 16d shown in FIG. Control so that the fire extinguishing agent is sprayed on the

In this way, the fire extinguishing agent can be sprayed in the section (for example, living room) where the fire broke out, and the fire can be extinguished.

(Activation of fire extinguishing equipment by manual operation)
Next, with reference to the flow chart shown in FIG. 9 and the flow chart shown in FIG. 10, the procedure for manually operating the automatic fire extinguishing equipment 101 will be described. Note that the step numbers shown in FIG. 9 and the step numbers shown in FIG. 10 are described in association with each other.

First, in step S31 of FIGS. 9 and 10, for example, when a fire breaks out in a room in the building, in step S32, people in the room visually confirm the occurrence of the fire.

In step S33, the receiving device 11 determines whether or not the manual activation device 17 shown in FIG. 1 has been operated. If the manual activation device 17 is operated by the fire discoverer or the like, the process proceeds to step S34, and if not operated, the process returns to step S32.

In step S34, the receiving device 11 displays various information about the fire occurrence on the display unit 115 shown in FIG.

In step S35, the receiver 11 outputs a fire occurrence signal. The fire occurrence signal is output to the district sound equipment 23 installed in appropriate places (corridor, living room, guard room, etc.) in the building via the repeater 21b.

Furthermore, in step S36, the fire occurrence signal is output to the smoke prevention device and the alarm device via the repeater 21c. As a result, a smoke prevention device installed at a suitable place in the building operates to exhaust the smoke generated at the fire site and its surroundings to the outside. Alternatively, an alarm device such as a fire light is activated.

In step S<b>37 , the receiving device 11 activates the automatic fire extinguishing equipment 101 . In step S38, the receiving device 11 sprays the fire extinguishing agent. Specifically, the receiver 11 outputs an actuation signal to the fire extinguishing agent storage box 12 shown in FIG. Further, the opening/closing of the selection valve 13 is controlled so that the fire extinguishing agent is supplied to the fire extinguishing agent pipe 18 leading to the fire extinguishing agent outlet 16 in the living room where the fire is occurring. For example, when extinguishing the fire by spraying the fire extinguishing agent from the fire extinguishing agent outlets 16a to 16d shown in FIG. , to control the spraying of the extinguishing agent to the desired area.

In this way, the fire extinguishing agent is sprayed in the section (for example, living room) where the fire broke out, and the fire can be extinguished.

(Activation of Automatic Fire Alarm Equipment)
Next, with reference to the flow chart shown in FIG. 11 and the flow chart shown in FIG. 12, the procedure for activating the automatic fire alarm system will be described.

FIG. 11 is a flow chart showing the operation of the fire alarm system 102 when a fire breaks out in the protection range inside the building, and FIG. 12 is a flow chart corresponding to FIG. Note that the step numbers shown in FIG. 11 and the step numbers shown in FIG. 12 are described in association with each other.

First, in step S51 of FIGS. 11 and 12, for example, when a fire breaks out in a room in the building, one or both of the fire sensors 15a and 15b provided in this room detect the fire.

In step S52, fire detection signals detected by the fire detectors 15a and 15b are transmitted to the receiver 11 via the transmission line 19. FIG.

In step S53, the receiving device 11 displays various information about the fire occurrence on the display unit 112 shown in FIG.

In step S54, the receiver 11 outputs a fire occurrence signal. The fire occurrence signal is output to the district sound equipment 23 installed in appropriate places (corridor, living room, guard room, etc.) in the building via the repeater 21b.

Furthermore, in step S55, the fire occurrence signal is output to the smoke prevention device and the alarm device via the repeater 21c. As a result, a smoke prevention device installed at a suitable place in the building operates to exhaust the smoke generated at the fire site and its surroundings to the outside. Alternatively, an alarm device such as a fire light is activated. In this way, when a fire breaks out, a fire detection signal is output by the fire sensor provided at the place where the fire broke out, and the people in the building are informed of the outbreak of the fire.

Thus, the fire extinguishing equipment according to the first embodiment can achieve the following actions and effects.

(1)
The automatic fire extinguishing equipment 101 includes fire detectors 15a and 15b and a receiver 11. When a fire is detected by the fire detectors 15a and 15b, the fire extinguishing agent discharged from the extinguishing agent storage box 12 is used as the extinguishing agent. Spray from outlets 16a to 16d. Therefore, when a fire breaks out, the fire extinguishing agent can be quickly sprayed to extinguish the fire. Furthermore, when the fire detectors 15a and 15b detect the occurrence of a fire, the area acoustic device 23 is sounded to report the occurrence of the fire. Therefore, when a fire breaks out, people in the building can be quickly notified of the outbreak of the fire. Further, the automatic fire extinguishing equipment 101 and the automatic fire alarm equipment 102 are not provided separately as in the prior art, but the fire detectors 15a and 15b are shared by the automatic fire extinguishing equipment 101 and the automatic fire alarm equipment 102. FIG. Similarly, the receiver 11 is shared.

By having the functions of the two equipments of the automatic fire extinguishing equipment 101 and the automatic fire alarm equipment 102, it is possible to meet the legal installation standards and to reduce the size and cost of the equipment. In addition, there is no need to construct and install the automatic fire extinguishing equipment 101 and the automatic fire alarm equipment 102 separately, so that the construction period can be shortened and the construction costs can be reduced. Furthermore, since the receiver 11 is shared, the installation space can be saved, which is extremely useful in small-scale hospitals and the like.

(2)
The automatic fire extinguishing equipment 101 has a set of fire sensors consisting of two or more fire sensors (two fire sensors 15a and 15b in FIG. 1), and fire detection output from all fire sensors When the signal is received by the receiving device 11, the fire extinguishing agent is sprayed to extinguish the fire at the location where the fire occurred. For this reason, it is possible to prevent the occurrence of a trouble that the fire extinguishing agent is sprayed unnecessarily due to the malfunction of the fire sensor.

(3)
When at least one of the fire sensors 15a and 15b outputs a fire detection signal, the area sound device 23 (annunciator) reports the occurrence of a fire. Therefore, it is possible to promptly report the occurrence of fire. Furthermore, even if one of the two fire sensors 15a and 15b is out of order, the other fire sensor operates to report the occurrence of fire, so that the occurrence of fire can be promptly and reliably reported. .

(4)
As the automatic fire extinguishing equipment 101, since at least one of the automatic fire extinguishing equipment that emits all-in-one block fire, foam fire extinguishing equipment, water discharge sprinkler equipment, open sprinkler equipment, and water spray fire extinguishing equipment is used, the size of the equipment can be reduced. Furthermore, when a fire breaks out, it is possible to reliably extinguish the fire by spraying a fire extinguishing agent or water.

(5)
An R-type receiving device (R-type receiver) is used as the receiving device 11, and the R-type receiving device (R-type receiver) converts each signal into a digital signal with a repeater and sends it to the receiving device 11. Since the data is transmitted, the number of wires can be reduced, and the construction cost for wiring can be reduced.

(6)
In the building, there are a first section, such as a living room, in which installation of the automatic fire extinguishing system 101 is obligatory, and a second section, such as a staircase, in which the installation of the automatic fire extinguishing system 101 is exempted. The automatic fire extinguishing equipment 101 extinguishes the fire when a fire detection signal is output from the fire sensor installed in the first section. The district acoustic device 23 (annunciator) notifies of a fire when at least one of the fire sensors installed in the first section and the second section outputs a fire detection signal. Therefore, the fire detection signal for activating the automatic fire extinguishing equipment 101 and the fire detection signal for activating the automatic fire alarm equipment 102 can be distinguished, and both functions can be reliably performed.

[Description of Second Embodiment]
Next, a second embodiment of the invention will be described. In the above-described first embodiment, an example of extinguishing a fire by spraying powder extinguishing agent, foam extinguishing agent, infiltrating agent, or the like using an automatic fire extinguishing equipment that performs section-wide radiation has been described. In the second embodiment, an example of extinguishing a fire using an inert gas will be described. 1 described above, the device configuration is that a container for filling inert gas is used instead of the fire extinguishing agent storage box 12, and the fire extinguishing agent outlets 16a to 16d release inert gas instead of the extinguishing agent. differ in Other than that, it is the same as FIG. 1, so detailed description is omitted.

Fire extinguishing equipment that uses inert gas, for example, in generator rooms, communication equipment rooms, computer rooms, data processing rooms, museums, art galleries, important cultural property storage rooms, dangerous goods warehouses, etc. Spray water and chemicals Therefore, it is suitable for use in areas where there is a high possibility of secondary damage and damage.

Hereinafter, the processing operation of the fire extinguishing equipment according to the second embodiment will be described with reference to the flowchart shown in FIG.

When a fire breaks out in a communication equipment room or the like, the fire sensor 15a detects the fire in step S71. In step S72, the receiving device 11 identifies the section where the fire occurred from the fire detection signal output from the fire sensor 15a.

In step S73, the receiving device 11 turns on the fire light or sounds the district sound device 23 (for example, a buzzer) to notify that a fire has occurred. Furthermore, the fire detection signal is transferred to other alarm equipment.

In step S74, the fire detector 15b detects fire. In step S75, the receiving device 11 stops the devices in the section where the fire broke out. Furthermore, in step S76, the shutter (not shown) of the section where the fire occurred is closed. That is, the area around the section where the fire broke out is sealed.

In step S77, the receiver 11 activates a built-in timer (not shown) to count the elapsed time after the shutter is closed.

In step S78, the receiving device 11 determines whether or not the time measured by the timer has reached a preset predetermined time, and if the predetermined time has been reached, the selection valve is controlled in step S79. That is, the passage of the inert gas is set so that the inert gas is limitedly supplied to the section where the fire has occurred.

In step S80, the receiver 11 switches the on-off valve of the inert gas filling container (not shown) from "closed" to "open" to release the inert gas from the container. As a result, the released inert gas can extinguish the fire as the inert gas is released into the outlet located in the compartment where the fire occurred.

In this way, in the fire extinguishing equipment according to the second embodiment, as in the first embodiment described above, the fire sensor used in the automatic fire extinguishing equipment using inert gas is used in the automatic fire alarm equipment. It is also used as a fire detector. Furthermore, the receiving device 11 is also used. Therefore, the scale of the apparatus can be simplified and the size can be reduced, and the installation cost can be reduced.

In addition, since inert gas fire extinguishing equipment or halide fire extinguishing equipment is used as the automatic fire extinguishing equipment 101, for example, in an environment such as a communication equipment room, water or chemicals may be released to damage equipment. It is possible to extinguish the fire without damaging the equipment by releasing the inert gas.

Although embodiments of the present invention have been described above, the statements and drawings forming part of this disclosure should not be construed as limiting the present invention. Various alternative embodiments, implementations and operational techniques will become apparent to those skilled in the art from this disclosure.

11 Receiving device 12, 12a-12c Fire extinguishing agent storage box 13, 13a-13h Selection valve 14, 21a, 21b, 21c Relay 15a-15d, 52 Fire sensor 16, 16a-16d Fire extinguishing agent outlet 17 Manual starting device 18 , 18a~18c Pipe for fire extinguishing agent 19 Transmission line 22 Gas detector 23 District acoustic device 24 Terminating resistor 25 Transmitter 26 Transmission line 51, 51a~51g Fire extinguishing compartment 61, 62, 63, 64 Living room 65 Corridor 66, 67 Washroom 68 Staircase 101 Automatic Fire Extinguishing Equipment 102 Automatic Fire Alarm Equipment 111 Operation Unit 112 Display Unit 113 Speaker 114 Printer

Claims (7)

a plurality of fire detectors for detecting a fire occurring in a building and outputting a fire detection signal including information on the location of the fire;
a receiving device for receiving a fire detection signal output from the fire detector;
A fire extinguishing agent storage box for storing extinguishing agent used for extinguishing,
a fire extinguishing agent discharge port for releasing a fire extinguishing agent;
a fire extinguishing agent pipe that guides the extinguishing agent stored in the extinguishing agent storage box to the extinguishing agent discharge port;
a selection valve for setting the route of the fire extinguishing agent pipe;
a second repeater connected to the fire sensor and the selection valve, and connected to the receiving device via a transmission line;
with
an automatic fire alarm system having a district acoustic device that notifies the occurrence of a fire when the fire detection signal is received by the receiver;
an automatic fire extinguishing equipment that extinguishes fire at the fire occurrence position;
A fire extinguishing system comprising: The district acoustic device is
When the fire sensing signal is received by the receiving device, the location of the fire occurrence is specified, and a notification signal output from the receiving device is received via the first repeater to notify the occurrence of the fire. The fire extinguishing equipment according to claim 1. In the first section where the installation of the automatic fire extinguishing equipment is compulsory,
The first section includes the fire sensor, the second relay, the selection valve, and the fire extinguishing agent outlet, and the fire sensor and the selection valve are connected to the second connected to the receiving device via a repeater of
The automatic fire extinguishing equipment emits a fire extinguishing agent from the fire extinguishing agent outlet in the first compartment to extinguish the fire when a fire detection signal is output from the fire sensor installed in the first compartment. The fire fighting equipment of claim 1, wherein A fire extinguishing equipment that senses and extinguishes a fire that occurs in a building with a second section exempted from installation of the automatic fire extinguishing equipment,
The second compartment includes the fire sensor and does not include the fire extinguishing agent outlet,
4. The district acoustic device according to claim 3, wherein the fire is reported when at least one of the fire sensors installed in the first section and the second section outputs a fire detection signal. fire extinguishing equipment. 4. The fire extinguishing equipment according to claim 3, wherein two, three or more of said fire detectors installed in said first compartment are closely spaced in ^21m2 . 5. The fire extinguishing system of claim 4, wherein the first section includes at least one of a living room, washroom, and corridor, and the second section includes a staircase. 3. The fire extinguishing equipment according to claim 2, wherein at least one of said area acoustic device, gas detector and transmitter is connected to said first repeater.

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