JP6509624B2 - Package type automatic fire extinguishing equipment - Google Patents

Description

  The present invention relates to a packaged automatic fire extinguishing system.

In the automatic fire alarm system, there is a P-type in which signal transmission between a receiver and a plurality of warning zones is performed on a one-to-one basis and an R-type in which a multiplex transmission method is used. Although it is possible to save the construction cost by reducing the cables used for transmission in the R-type, it requires a relay to communicate between the receiver and each warning zone, and the cost and installation cost of this relay can be reduced. Both methods exist because they may not have an advantage over the P-type when they are considered.
For example, Patent Document 1 includes a plurality of sensors for detecting fire, smoke, etc., and a receiver for receiving fire detection information from the sensors, and a self-transmission system employing a multiplex transmission method as the communication means between the sensor and the receiver. A fire report system is disclosed.

Unexamined-Japanese-Patent No. 2-35593

On the other hand, none of the package-type automatic fire extinguishing systems adopts the multiplex transmission method. In addition, the package type automatic fire extinguishing equipment sends the signal of the temperature sensor to the receiver through the cable, determines that it is a fire if the signal exceeds the threshold, activates the selective valve connected to the receiver with the cable, and emits the extinguishant To do. Here, the selection valve is provided in the fire extinguishing agent pipe for each of one or more sections, and is normally closed, and is opened when a fire occurs, and the fire extinguishing agent is discharged from the storage container to the discharge port It has the function of constructing the piping route to the end.
When the multiplex transmission method is adopted for the package type automatic fire extinguishing equipment, a plurality of cables connected from the receiver to each selection valve can be integrated, but for that purpose, it is necessary to install a repeater near each selection valve. In the case of installation in a building with a large number of sections, the cost of a large number of cables required for P-type and the great effort required for cable management can be omitted, so the merits of multiplex transmission are great. However, in the case of installation in a building with a small number of sections, the cost increase due to the complicated transmission device and the cost for the relay itself and its construction are incurred, so it is difficult to obtain the cost reduction effect. Moreover, since the installation work of the selection valve and the relay is usually performed in a narrow ceiling, not only the connection between the selection valve and the relay takes time, but also there is a concern of erroneous wiring.

  Therefore, an object of the present invention is to provide a package type automatic fire extinguishing system of a multiplex transmission system, which is low in construction cost, easy in operation, and less likely to be miswired.

The packaged automatic fire extinguishing system according to claim 1 comprises a fire sensing unit for detecting a fire occurrence in a warning zone and transmitting a fire signal, a receiving unit for receiving the fire signal, and a fire extinguishing agent storage filled with a fire extinguishing agent. A container, an extinguishant outlet for releasing the extinguishant into the alert zone, an extinguishant pipe for connecting the extinguishant storage container and the extinguishant outlet, and the extinguishant pipe provided at the time of fire occurrence It is a package type automatic fire extinguishing equipment provided with a selection valve to be opened, wherein the fire detection unit and the reception unit are connected by multiple transmission means, and the selection valve operates a valve body and the valve body. The drive unit box is provided with a relay substrate, which includes a drive unit and a drive unit box surrounding the drive unit, and relays signals transmitted and received between the fire detection unit and the reception unit. It is characterized by
According to a second aspect of the present invention, in the package type automatic fire extinguishing equipment according to the first aspect, the selection valve is a motor-operated valve driven by electricity, and the drive unit box has an opening formed on the lower surface. The opening is closed by a rectangular thin plate-like first support plate, the valve body and the first support plate are connected by a drive-side connection, and the valve body has a valve rod having a valve body at one end. The other end portion of the valve rod is protruded from the drive portion side connection portion into the drive portion box, and the drive portion is a motor portion for operating the valve rod, and a plurality of gears are the valve rod of the valve rod. And a control board provided with a circuit for controlling the motor section, wherein the other end section and a drive shaft of the motor section are engaged with each other, and a rectangular thin plate is formed at a predetermined distance from the first support plate. A second support plate, and mounting the motor unit on the second support plate The drive shaft of the motor unit and the gear unit are disposed between the first support plate and the second support plate, and the control substrate and the relay substrate are spaced from the second support plate by a predetermined distance. It is characterized in that it is placed open above.
According to a third aspect of the present invention, in the packaged automatic fire extinguishing equipment according to the first or second aspect, a conductive portion is provided in a power supply line connecting the fire detecting portion and the selection valve, and the conductive portion is The power supply line may be turned on when the fire detection unit is activated.
According to a fourth aspect of the present invention, in the package type automatic fire extinguishing equipment according to any one of the first to third aspects, the fire detection unit is a temperature detector for detecting a temperature. Do.
According to a fifth aspect of the present invention, in the package type automatic fire extinguishing equipment according to any one of the first to third aspects, the fire detection unit is a carbon monoxide detector that detects a carbon monoxide concentration. It is characterized by
According to a sixth aspect of the present invention, in the packaged automatic fire extinguishing equipment according to any one of the first to third aspects, the fire sensing unit detects carbon monoxide concentration, smoke concentration, and temperature. A composite detector, a determination unit that determines the occurrence of fire by comparing the concentration of the carbon monoxide detected by the composite detector, the concentration of the smoke, or the temperature with a threshold, and the detection from the composite detector A noise removing unit that removes noise of the signal; and a noise storing unit that stores the size and time of the detection signal in a state where no fire occurs, the noise removing unit storing the noise storing unit in the noise storing unit The noise may be determined based on the magnitude of the detection signal and the time, and the determination unit may perform the determination based on the detection signal from which the noise has been removed by the noise removal unit.
According to a seventh aspect of the present invention, in the packaged automatic fire extinguishing system according to any one of the first to sixth aspects, the self-diagnosis unit is provided, and the self-diagnosis unit detects at least the fire detection target. It is characterized in that a confirmation signal for confirming soundness is periodically transmitted to the fire detection unit.
According to an eighth aspect of the present invention, in the packaged automatic fire extinguishing equipment according to the seventh aspect, the self-diagnosis unit includes a diagnostic computer, and the diagnostic computer is from the electric circuit to be diagnosed. It is characterized in that it periodically determines whether or not to receive a signal of a predetermined voltage.
According to a ninth aspect of the present invention, in the package type automatic fire extinguishing equipment according to any one of the first to eighth aspects, a wireless LAN is used as the multiplex transmission method.

  According to the present invention, it is possible to provide a package type automatic fire extinguishing system of multiplex transmission type, which is low in construction cost, easy in operation and less likely to be miswired.

System diagram of package type automatic fire extinguishing equipment according to one embodiment of the present invention Partial system diagram of the fire extinguishing equipment Schematic structural drawing of the selection valve of the fire extinguishing equipment Explanatory drawing of the conduction part of the fire extinguishing equipment An illustration of the self-diagnosis unit of the fire extinguishing equipment The block diagram which represented the control system of the fire detection part of the package type automatic fire extinguishing equipment by the function realization means by the other Example of this invention Diagram showing the relationship between the threshold and fire detection time in the same fire extinguishing equipment Flow chart showing the processing flow of the judgment unit of the fire extinguishing equipment The figure which shows the relationship between the threshold value and fire detection time in the package type automatic fire extinguishing equipment by the other Example of this invention. Flow chart showing the processing flow of the judgment unit of the fire extinguishing equipment Schematic diagram showing the configuration of a conventional individually selected valve

In the packaged automatic fire extinguishing system according to the first embodiment of the present invention, the fire sensing unit and the receiving unit are connected by multiplex transmission means, the selection valve comprises a valve body, a drive unit for operating the valve body, and a drive The drive unit box is provided with a relay substrate which is constituted by a drive unit box surrounding the unit and relays signals transmitted and received between the fire detection unit and the reception unit. According to the present embodiment, by arranging the relay board at the selection valve, the number of cables can be reduced as compared with the case where the selection valve and the relay are separately provided. Therefore, it is possible to reduce the cost and construction period for cable installation work. Moreover, incorrect wiring between the selection valve and the relay can be prevented.
A second embodiment of the present invention is a package type automatic fire extinguishing equipment according to the first embodiment, wherein the selection valve is a motor-operated valve electrically driven, and the drive unit box is formed with an opening on the lower surface. The opening is closed by a rectangular thin plate-shaped first support plate, the valve body and the first support plate are connected at the drive portion side connection portion, and the valve body includes a valve rod having a valve body at one end, The other end of the rod projects from the drive side connection into the drive box, and the drive is a motor that operates the valve stem, and the plurality of gears are the other end of the valve stem and the drive shaft of the motor. And a control substrate having a circuit for controlling the motor unit, wherein a second thin rectangular support plate is provided at a predetermined distance from the first support plate, and the motor unit is (2) mounted on the support plate, the drive shaft and the gear portion of the motor unit, between the first support plate and the second support plate Arrangement, and the control board and the connecting board, in which is arranged an upwardly spaced a predetermined distance from the second support plate. According to the present embodiment, the relay substrate can be accommodated in the drive unit box without changing the size of the conventional selection valve.
According to a third embodiment of the present invention, in the packaged automatic fire extinguishing equipment according to the first or second embodiment, a conductive portion is provided in the power supply line connecting the fire detection portion and the selection valve, and the conductive portion is When the fire detector operates, the power supply line is conducted. According to the present embodiment, it is possible to prevent the selective valve from being opened erroneously due to noise.
According to a fourth embodiment of the present invention, in the packaged automatic fire extinguishing equipment according to any one of the first to third embodiments, the fire detecting unit is a temperature detector for detecting a temperature. According to the present embodiment, a flamed fire can be detected early.
According to a fifth embodiment of the present invention, in the package type automatic fire extinguishing equipment according to any one of the first to third embodiments, the fire sensing unit detects a carbon monoxide concentration and a carbon monoxide detector It is According to the present embodiment, a smoldering fire can be detected early.
A sixth embodiment of the present invention is a package type automatic fire extinguishing system according to any one of the first to third embodiments, wherein the fire detection unit detects carbon monoxide concentration, smoke concentration, and temperature. A composite detector that compares the carbon monoxide concentration, smoke concentration, or temperature detected by the composite detector with temperature and a threshold to determine the occurrence of a fire, and removes noise from the detection signal from the composite detector Noise removal unit, and a noise storage unit for storing the magnitude and time of the detection signal in the state where no fire occurs, and the noise removal unit is based on the magnitude and time of the detection signal stored in the noise storage unit Noise is determined, and the determination unit performs the determination based on the detection signal from which the noise has been removed by the noise removal unit. According to the present embodiment, it is possible to reduce false detection and to easily identify the type of fire (flamed fire, roasted fire, etc.).
A seventh embodiment of the present invention is a package type automatic fire extinguishing system according to any one of the first to sixth embodiments, further comprising a self-diagnosis unit, the self-diagnosis unit including at least a fire detection unit to be diagnosed. A confirmation signal for confirming soundness is periodically transmitted to the fire detection unit. According to the present embodiment, the inspection can be simply performed separately from the periodic inspection, and the soundness of the device can be maintained.
The eighth embodiment of the present invention is the package-type automatic fire extinguishing equipment according to the seventh embodiment, wherein the self-diagnosis unit includes a diagnostic computer, and the diagnostic computer is an electrical circuit to be diagnosed. It is determined periodically whether to receive a signal of a predetermined voltage. According to the present embodiment, the inspection can be simply performed separately from the periodic inspection, and the soundness of the device can be maintained.
The ninth embodiment of the present invention is a package type automatic fire extinguishing equipment according to any one of the first to eighth embodiments, which uses a wireless LAN as a multiplex transmission method. According to the present embodiment, in this case, wiring between the devices becomes unnecessary, so installation can be made even in a narrow space.

Examples of the present invention will be described below.
1 is a system diagram of a packaged automatic fire extinguishing system according to an embodiment of the present invention, FIG. 2 is a partial system diagram of the fire extinguishing system, FIG. 3 is a schematic diagram of a selection valve of the fire extinguishing system, FIG. Explanatory drawing of the conduction | electrical_connection part of the fire extinguishing installation, FIG. 5 is explanatory drawing of the self-diagnosis part of the fire extinguishing installation.

The packaged automatic fire extinguishing system according to the present embodiment connects the extinguishant storage container filled with the extinguishant, the extinguishant discharge port for releasing the extinguishant to the warning zone α, the extinguishant storage container and the extinguishant discharge port. With an extinguishing agent pipe.
Further, a plurality of systems are connected to one receiver (transmission master) 10. Connected to the transmission master unit 10 are a display board 11 on which the operation state of each device and the like are displayed, and a main body start board 12.
The main selection valve start board 13 and the main selection valve 14 are installed in each system. In addition, the fire sensing unit 20 and the individual selection valve 30 are installed for each monitoring section α. The individual selection valve 30 is provided in the extinguishant pipe, is always closed, and opens when a fire occurs.
The fire detection unit 20 detects a fire occurrence in the warning zone α and transmits a fire signal.
The transmission master unit 10 receives a fire signal from the fire detection unit 20. When the transmission main unit 10 receives a signal exceeding the threshold from the fire detection unit 20, it activates the main selection valve activation board 13 to open the main selection valve 14, and operates the relay board 31 to open the individual selection valve 30. The fire extinguishing agent piping route to the caution zone α which the fire sensing unit 20 which has transmitted the signal exceeding the threshold receives is communicated. The transmission master 10 simultaneously releases the extinguishant from the extinguishant storage container through the main body activation board 12. The extinguishant discharged from the extinguishant storage container is radiated to the warning zone α which has ignited from the extinguishant outlet through the extinguishant piping route.

The fire detection unit 20 includes a constant temperature sensor 21 and a differential sensor 22. By using a temperature detector for detecting temperature in the fire detection unit 20, it is possible to detect flamed fire early. In addition, by using two temperature sensors with different sensing methods, an alarm is issued when one temperature sensor detects a fire, and a fire extinguishing operation is performed when both temperature sensors detect a fire. Can reduce the incidence of false radiation.
The fire sensing unit 20 may use a carbon monoxide detector that detects the concentration of carbon monoxide. In this case, it is possible to early detect a smoldering fire in which the temperature near the ceiling may not be very high.

The fire sensing unit 20 and the transmission master 10 are connected by the multiplex transmission means 15, and the relay board 31 is incorporated in the interior of the individual selection valve 30.
The relay board 31 receives the fire signal from the fire detection unit 20 and transmits the fire signal to the transmission master 10. Further, it receives an open signal for opening the individual selection valve 30 transmitted from the transmission master unit 10, and transmits the open signal to the control unit of the individual selection valve 30. As described above, the relay board 31 relays the signal transmitted and received between the device disposed in the alert section α and the transmission master device 10.
Note that a wireless LAN such as Wi-Fi may be used as the multiplex transmission method. In this case, since wiring between the fire detection unit 20 and the transmission master 10 is not necessary, even a narrow space can be installed.

As shown in FIG. 2, the two core wires of the COM signal line and the power supply line from the transmission master unit 10 are connected to the main selection valve 14 via a relay substrate for the main selection valve 14. The two core wires of the COM signal line and the power supply line from the main selection valve 14 are connected to the nearest individual selection valve 30. Further, in the individually selected valve 30, three core wires of a COM signal line and a detection signal line from the constant-temperature sensor 21 and the differential sensor 22 disposed in the same guard zone α as the individually selected valve 30 are included. It is connected. The two core wires of the COM signal line and the power supply line from the individual selection valve 30 are connected to the next individual selection valve 30.
In addition, while each core wire carries out color coding, erroneous wiring is prevented by connecting by crimping etc.

Fig. 3 is a schematic configuration view of the individual selection valve of the fire extinguishing device, Fig. 3 (a) is a side view, and Fig. 3 (b) is a plan view.
The individual selection valve 30 includes a valve body 32, a drive unit 33 for operating the valve body 32, and a drive unit box 60 (dotted line portion in FIG. 3) for surrounding the drive unit 33. The individual selection valve 30 is a motor-operated valve driven by electricity.
The lower surface of the drive unit box 60 is formed with an opening so that the drive unit 33 can be covered.
The valve body 32 is provided with a valve rod 32A having a valve body 32B at one end. The other end of the valve rod 32A is protruded into the drive unit box 60 from the drive unit side connection 32c. Moreover, it has piping side connection end 32a, 32b connected with a extinguishing agent piping.
The drive unit 33 includes a rod-like manual shaft 36, a gear unit 35 in which a plurality of gears are engaged with the other end of the valve rod 32A and the drive shaft 37A of the motor unit 37, and a motor unit 37 for operating the valve rod 32A. , A limit switch 38, and a control board 39 having a circuit for controlling the motor unit 37 and the limit switch 38.
The drive unit 33 includes a first thin rectangular support plate 34A. The lower surface of the first support plate 34A circumscribes the drive portion side connection portion 32c of the valve main body 32. That is, the opening of the drive unit box 60 is closed by the first support plate 34A, and the valve body 32 and the first support plate 34A are connected by the drive unit side connection portion 32c.
The drive unit 33 includes a rectangular thin plate-like second support plate 34B. The second support plate 34B is provided above the first support plate 34A at a predetermined interval. The first support plate 34A and the second support plate 34B are connected by a plurality of pins 36A.
The lower end of the manual shaft 36 is supported by the first support plate 34A, and the manual shaft 36 passes through the second support plate 34B and stands up. The upper end of the manual shaft 36 can be provided with a handle for manual operation.
The drive shaft 37A and the gear portion 35 of the motor unit 37 are disposed between the first support plate 34A and the second support plate 34B. The force of the drive unit 33 is transmitted to the valve body 32 via the gear unit 35.
The motor unit 37 and the limit switch 38 are mounted on the second support plate 34B.
The control substrate 39 is disposed above the second support plate 34B at a predetermined interval.
The relay board 31 is disposed above the control board 39 at a predetermined interval. The relay board 31 is in the form of a rectangular thin plate substantially the same as the control board 39. The second support plate 34B, the control board 39, and the relay board 31 are connected by a plurality of pins 36B.
As shown in FIG. 3B, the motor section 37 and the manual shaft 36 are diagonally located on the second support plate, and the relay substrate 31 and the limit switch 38 are located on the other diagonal.
Further, an input cable 15A and an output cable 15B are connected to the relay substrate 31. In the input cable 15A, a total of five core wires of the COM signal line and the power supply line from the transmission master unit 10, and the COM signal line and the detection signal line from the fire detection unit 20 are accommodated. The output cable 15B accommodates two core wires of a COM signal line and a power supply line.
As described above, since the relay board 31 can be accommodated in the drive unit box 60, there is no need to change the size of the conventional selection valve.
Further, by incorporating the relay board 31 into the individual selection valve 30, the number of cables can be reduced as compared with the case where the individual selection valve 30 and the relay are separately provided. Therefore, it is possible to reduce the cost and construction period for cable installation work. Moreover, incorrect wiring between the individual selection valve 31 and the relay can be prevented.
Although the relay board 31 is disposed above the control board 39 in the present embodiment, the control board 39 may be disposed above the relay board 31 at a predetermined interval, conversely.
Moreover, a solenoid valve can also be used for the individual selection valve 30.

FIG. 4 is an explanatory view of the conduction part of the fire extinguishing facility.
Detection signals from the fire detection unit 20 (the constant-temperature sensor 21 and the differential sensor 22) are transmitted to the individual selection valve 30 via the computer 31A of the relay board 31.
A conduction portion 42 is provided in the power supply line 41 connecting the fire detection unit 20 and the individual selection valve 30. Conducting portion 42 is formed of relay 42A and relay 42B. The conduction portion 42 does not conduct normally (in the non-fire time), but conducts the power supply line 41 when the constant-temperature sensor 21 and the differential sensor 22 are activated (reported).
Therefore, even if the electronic computer 31A erroneously recognizes a fire due to environmental noise etc. and sends an open signal instructing the individual selection valve 30 to open, the two sensors of the constant temperature sensor 21 and the differential sensor 22 Since the individual selection valve 30 is not supplied with electricity unless it operates, the selection valve does not open. That is, it is possible to prevent the individual selection valve 30 from being opened erroneously due to noise.
On the other hand, FIG. 11 is a schematic view showing the configuration of a conventional individual selection valve.
A detection signal from the fire detection unit 200 (constant-temperature sensor 201, differential sensor 202) is transmitted to the individual selection valve 300 via the electronic computer 400 of the repeater.
Since the power supply line 401 is not provided with a part corresponding to the conduction portion 42, the individual selection valve 300 is always connected to the power supply. Therefore, even if the fire detection unit 200 is not activated (a fire does not occur), the electronic computer 400 erroneously recognizes it as a fire due to environmental noise or the like, and transmits an open signal to the individual selection valve 300. Will cause the individual selection valve 300 to be opened.

FIG. 5 is a schematic view showing a configuration in which a diagnostic computer of the self-diagnosis unit is disposed in the vicinity of the individual selection valve of the fire extinguishing facility.
A diagnostic electronic computer 51 is provided between the electronic computer 31A of the relay board 31 and the individual selection valve 30. The diagnostic computer 51 is set to automatically diagnose the soundness of the circuit of the device periodically (for example, once every 24 hours). At the time of diagnosis, it is possible to diagnose the soundness of the circuit by confirming whether or not a signal of a predetermined voltage flows from the computer 31A to the diagnostic computer 51 while preventing electricity from flowing to the individual selection valve 30. The self-diagnosis can be similarly performed for the main body activation board 12 and the main selection valve activation board 13 as well.
Packaged automatic fire extinguishing equipment is required to have an inspection once every six months. Each time an inspection is performed, heat is provided to the provided fire detector to check the operation, but it takes time and effort. Furthermore, if a failure occurs before the next inspection, the failure may not be noticed and the performance may not be exhibited in the event of a fire. Therefore, by providing the self-diagnosis function as in the present embodiment, the inspection can be simply performed separately from the periodic inspection, and the soundness of the device can be maintained.

FIG. 6 is a block diagram showing the control system of the fire detection unit of the packaged automatic fire extinguishing equipment according to another embodiment of the present invention as function realizing means, and FIG. 7 is a diagram showing the relationship between the threshold and fire detection time in the fire extinguishing equipment FIG. 8 is a flow chart showing the processing flow of the judgment unit of the fire extinguishing equipment. The same functional units and the same functional units as those of the above-described embodiment are designated by the same reference numerals, and the description thereof will be omitted.
The package type automatic fire extinguishing system according to the present embodiment has the same basic configuration as the above-described embodiment, but the fire detection unit 20 is a combined detector that detects carbon monoxide concentration, smoke concentration, and temperature. When a compound detector is used, false detection is reduced, and it becomes easy to identify the type of fire (flamed fire, roasted fire, etc.).

In FIG. 6, the fire detection unit 20 detects carbon monoxide (CO) concentration, smoke concentration, and temperature in the warning zone α.
The threshold setting unit 72 sets a plurality of thresholds for the carbon monoxide concentration, the smoke concentration, and the temperature.
The activation unit 71 compares the activation threshold among the plurality of thresholds set by the threshold setting unit 72 with the carbon monoxide concentration detected by the fire detection unit 20, and the smoke concentration detection unit 24 and the temperature detection unit 25. , And determines whether to start the determination unit 70.
The determination unit 70 determines the occurrence of a fire by comparing the determination threshold among the plurality of thresholds set by the threshold setting unit 72 with the carbon monoxide concentration, the smoke concentration, or the temperature detected by the fire detection unit 20. I do.
The determination storage unit 75 stores the determination result of the determination unit 70.
The noise removal unit 73 removes noise from the detection signal of the fire detection unit 20.
The self-diagnosis unit 50 transmits a confirmation signal for confirming soundness to the fire detection unit 20, the threshold setting unit 72, the activation unit 71, the determination unit 70, the determination storage unit 75, or the noise removal unit 73. For example, at the time of periodic inspection, when an inspector presses the diagnosis start button, a confirmation signal is automatically transmitted to each part, and the soundness of each part can be confirmed by whether a normal response signal can be obtained.

The fire detection unit 20 includes a carbon monoxide concentration detection unit 23, a smoke concentration detection unit 24, and a temperature detection unit 25.
The fire detection unit 20 is connected to the activation unit 71 and the determination unit 70 in a wired or wireless manner, and the detection results of the carbon monoxide concentration detection unit 23, the smoke concentration detection unit 24 and the temperature detection unit 25 are the activation unit 71. And the determination unit 70.

In the threshold setting unit 72, a plurality of thresholds are set for each of the carbon monoxide concentration, the smoke concentration, and the temperature.
In this embodiment, as the plurality of threshold values, a first threshold value, a second threshold value lower than the first threshold value, and an activation threshold value lower than the second threshold value are set as the carbon monoxide concentration, and smoke concentration is set. The third threshold and the fourth threshold lower than the third threshold are set, and the temperature is set the fifth threshold and the sixth threshold lower than the fifth threshold. The first to sixth threshold values are determination threshold values.
The threshold setting unit 72 is connected to the activation unit 71 and the determination unit 70 by wire or wireless, the activation threshold is transmitted to the activation unit 71, and the determination threshold (first to sixth thresholds) is determined by the determination unit 70. Sent to

The activation unit 71 compares the activation threshold set by the threshold setting unit 72 with the carbon monoxide concentration detected by the carbon monoxide concentration detection unit 23.
The activation unit 71 is connected to the determination unit 70 by wire or wirelessly, and as a result of comparison, when it is determined that the state where the carbon monoxide concentration exceeds the activation threshold continues for a predetermined time, the fire detection unit 20 and The start signal is transmitted to the determination unit 70.
When the smoke concentration detection unit 24 and the temperature detection unit 25 of the fire detection unit 20 receive the activation signal from the activation unit 71, they are activated and start detection. The standby power can be suppressed by preventing the smoke concentration detection unit 24 and the temperature detection unit 25 from operating until the carbon monoxide concentration reaches a predetermined value.

The determination unit 70 is formed of a semiconductor integrated circuit such as an LSI (Large Scale Integration), and is activated to start the determination when the activation signal from the activation unit 71 is received. As described above, the determination unit 70 does not operate until the concentration of carbon monoxide reaches a predetermined value, whereby the standby power can be suppressed, and the operating time can be reduced to extend the life.
The determination unit 70 compares the determination threshold among the plurality of thresholds set by the threshold setting unit 72 with the concentration of carbon monoxide, the smoke concentration, or the temperature detected by the fire detection unit 20, either of the following: If any result is obtained, it is determined that a fire has occurred.
1) When the state where the carbon monoxide concentration exceeds the first threshold continues for a predetermined time.
2) When the smoke concentration exceeds the third threshold for a predetermined time.
3) When the temperature exceeds the fifth threshold for a predetermined time.
4) A state in which the carbon monoxide concentration exceeds the second threshold continues for a predetermined time, and a state in which the smoke concentration exceeds the fourth threshold continues for a predetermined time, and a state in which the temperature exceeds the sixth threshold When continuing for a predetermined time.
“Continuous for a predetermined time” means that the carbon monoxide concentration, the smoke concentration, or the temperature exceeds the threshold a plurality of times during a predetermined time, in addition to the case where it is determined that the threshold is continuously exceeded. It includes the case where it is determined that the number of times exceeded exceeds a predetermined reference number.

Here, FIG. 7 is a diagram showing the relationship between the threshold and fire detection time in the same package type automatic fire extinguishing equipment, and FIG. 7 (a) shows the relationship between carbon monoxide concentration and fire detection time, FIG. 7 (b) Shows the relationship between smoke concentration and fire detection time, and FIG. 7 (c) shows the relationship between temperature and fire detection time. The vertical axis is carbon monoxide concentration, smoke concentration, or temperature, and the horizontal axis is fire detection time. In addition, "fire detection time" is time until a fire detection apparatus detects the said fire, when a fire generate | occur | produces.
As shown in FIG. 7, the lower the threshold is set, the shorter the fire detection time can be. However, when the threshold is set lower, the possibility of false detection is increased. Therefore, as in the present embodiment, the first threshold and the second threshold lower than the first threshold are provided as the threshold for determining the carbon monoxide concentration, and the second threshold combines the information of the smoke concentration and the temperature to judge the fire. By doing this, it is possible to prevent an increase in false detection when the threshold for determination of the carbon monoxide concentration is set low. Therefore, the threshold for determination of the carbon monoxide concentration can be set low, and even a fire such as a smoldering fire in which the heat is not so high and the carbon monoxide concentration increases can be detected early.

In the block diagram of FIG. 6, the determination storage unit 75 stores data on the size and time of the detection signal from the fire detection unit 20 used for determination when the determination unit 70 determines that a fire has not occurred.
The data stored in the determination storage unit 75 is transmitted to the threshold setting unit 72.
The threshold setting unit 72 changes the threshold based on the received data.
The accuracy of fire detection can be improved by storing the determination result as described above and providing the learning function of changing the threshold value according to the determination result.

Data related to the size and time of the detection signal from the fire sensing unit 20, which is stored in the determination storage unit 75 and used for determination when the determination unit 70 determines that a fire has not occurred, is also transmitted to the noise removal unit 73. Will be sent.
The noise removing unit 73 includes a noise storage unit 74 that stores data from the determination storage unit 75.
The noise removal unit 73 determines noise based on the data stored in the noise storage unit 74, and removes noise from the detection signal transmitted from the fire detection unit 20 to the activation unit 71 and the determination unit 70.
That is, since the state where the carbon monoxide concentration exceeded the activation threshold continued for a predetermined period of time in a certain time zone, the determination unit 70 was activated to start the determination of fire occurrence, but the result of the determination indicates that the fire does not occur. If the background noise in the relevant time zone is large, the noise removal unit 73 determines that the magnitude of the background noise is large from the detection signal from the carbon monoxide concentration detection unit 23 to the activation unit 71 in the relevant time zone. Remove the minutes. This can reduce the erroneous determination of the activation unit 71 and prevent the determination unit 70 from being activated unnecessarily.
In addition, the determination unit 70 is activated in a certain time zone to start the determination, and the state exceeding the second threshold continues for a predetermined time, but the comparison between the smoke concentration and the fourth threshold and the comparison between the temperature and the sixth threshold If the determination unit 70 determines that the fire is not a fire, the noise removal unit 73 determines that the background noise in the time zone is large, and the background noise is determined from the detection signal from the fire detection unit 20 to the determination unit 70 in the time zone. Remove the size of the. By this, the misjudgment of the judgment part 70 can be reduced and the misdetection of a fire can be prevented.
Thus, the fire detection device of the present embodiment learns background noise, and the activation unit 71 and the determination unit 70 determine the activation threshold or determination based on the correct detection signal after the noise removal unit 73 removes the noise. Since the comparison with the use threshold is performed, false detection can be reduced and the accuracy of fire detection can be improved.

FIG. 8 is a flow chart showing the processing flow of the determination unit 70 of the same package type automatic fire extinguishing equipment.
If the start-up unit 71 determines that the state in which the carbon monoxide concentration exceeds the start-up threshold continues for a predetermined time, the determination unit 70 starts up and starts determination (step 1).
The determination unit 70 activated in step 1 determines whether the state in which the carbon monoxide concentration exceeds the second threshold continues for a predetermined time (step 2).
If it is determined in step 2 that the state in which the carbon monoxide concentration exceeds the second threshold does not continue for a predetermined time, it is determined whether the state in which the smoke concentration exceeds the third threshold continues for a predetermined time ( Step 3).
If it is determined in step 3 that the state where the smoke concentration has exceeded the third threshold continues for a predetermined time, it is determined that a fire has occurred (step 4).
If it is determined in step 3 that the state in which the smoke concentration exceeds the third threshold does not continue for a predetermined time, it is determined whether the state in which the temperature exceeds the fifth threshold continues for a predetermined time (step 5) ).
If it is determined in step 5 that the temperature exceeds the fifth threshold for a predetermined time, it is determined that a fire has occurred (step 6).
If it is determined in step 5 that the state in which the temperature exceeds the fifth threshold does not continue for a predetermined time, it is determined that a fire has not occurred (step 7).
If it is determined in step 2 that the state in which the carbon monoxide concentration exceeds the second threshold continues for a predetermined period of time, it is determined whether the state in which the carbon monoxide concentration exceeds the first threshold continues for a predetermined period of time (Step 8).
If it is determined in step 8 that the state in which the carbon monoxide concentration exceeds the first threshold has continued for a predetermined time, it is determined that a fire has occurred (step 9).
If it is determined in step 8 that the state in which the carbon monoxide concentration exceeds the first threshold does not continue for a predetermined time, the state in which the smoke concentration exceeds the fourth threshold continues for a predetermined time, and the temperature is It is determined whether the state in which the threshold value has been exceeded continues for a predetermined time (step 10).
If it is determined in step 10 that the smoke concentration exceeds the fourth threshold for a predetermined time and the temperature exceeds the sixth threshold for a predetermined time, it is determined that a fire has occurred ( Step 11).
If it is determined in step 10 that the state in which the smoke concentration exceeds the fourth threshold does not continue for the predetermined time, or if it is determined that the state in which the temperature exceeds the sixth threshold does not continue for the predetermined time , Step 3.

FIG. 9 is a diagram showing the relationship between a threshold and fire detection time in a packaged automatic fire extinguishing system according to still another embodiment of the present invention, and FIG. The same functional units and the same functional units as those of the above-described embodiment are designated by the same reference numerals, and the description thereof will be omitted.
The package type automatic fire extinguishing equipment according to the present embodiment is the same in basic configuration as the other embodiments described above, but differs in that it has more determination threshold values.

In the threshold setting unit 72, a plurality of thresholds are set for each of the carbon monoxide concentration, the smoke concentration, and the temperature.
In this embodiment, as the plurality of threshold values, the first threshold value, the second threshold value lower than the first threshold value, the activation threshold value lower than the second threshold value, and the first threshold value are set for the carbon monoxide concentration. A seventh threshold that is lower than the second threshold and an eighth threshold that is lower than the seventh threshold and higher than the second threshold are set, and a third threshold that is the smoke density and a fourth threshold that is lower than the third threshold are set. The ninth threshold is set lower than the third threshold and higher than the fourth threshold, and the temperature is set to the fifth threshold, the sixth threshold lower than the fifth threshold, and the sixth threshold lower than the fifth threshold. A high tenth threshold is set. The first to tenth threshold values are determination threshold values.
The threshold setting unit 72 is connected to the activation unit 71 and the determination unit 70 in a wired or wireless manner, the activation threshold is transmitted to the activation unit 71, and the determination threshold (first to tenth threshold values) is determined. Sent to

The determination unit 70 is configured of a semiconductor integrated circuit such as an LSI (Large Scale Integration), and is activated upon receiving the activation signal from the activation unit 71, and starts the determination. As described above, the determination unit 70 does not operate until the concentration of carbon monoxide reaches a predetermined value, whereby the standby power can be suppressed, and the operating time can be reduced to extend the life.
The determination unit 70 determines that a fire has occurred when any of the following results is obtained.
1) When the state where the carbon monoxide concentration exceeds the first threshold continues for a predetermined time.
2) When the smoke concentration exceeds the third threshold for a predetermined time.
3) When the temperature exceeds the fifth threshold for a predetermined time.
4) A state in which the carbon monoxide concentration exceeds the second threshold continues for a predetermined time, and a state in which the smoke concentration exceeds the fourth threshold continues for a predetermined time, and a state in which the temperature exceeds the sixth threshold When continuing for a predetermined time.
5) When the state in which the carbon monoxide concentration exceeds the seventh threshold continues for a predetermined time, and the state in which the smoke concentration exceeds the ninth threshold continues for a predetermined time.
6) When the state in which the carbon monoxide concentration exceeds the eighth threshold continues for a predetermined time, and the state in which the temperature exceeds the tenth threshold continues for a predetermined time.

Here, FIG. 9 is a diagram showing the relationship between the threshold and the fire detection time in the same package type automatic fire extinguishing equipment, and FIG. 9 (a) shows the relationship between carbon monoxide concentration and the fire detection time, FIG. 9 (b) Shows the relationship between smoke concentration and fire detection time, and FIG. 9 (c) shows the relationship between temperature and fire detection time. The vertical axis is carbon monoxide concentration, smoke concentration, or temperature, and the horizontal axis is fire detection time.
As shown in FIG. 9, the fire detection time can be shortened as the threshold is set lower, but if the threshold is set lower, the possibility of false detection is increased. Therefore, as in the present embodiment, the first threshold and the second threshold lower than the first threshold are provided as the threshold for determining the carbon monoxide concentration, and the second threshold combines the information of the smoke concentration and the temperature to judge the fire. By doing this, it is possible to prevent an increase in false detection when the threshold for determination of the carbon monoxide concentration is set low. Therefore, the threshold for determination of the carbon monoxide concentration can be set low, and even a fire such as a smoldering fire in which the heat is not so high and the carbon monoxide concentration increases can be detected early. In addition, by increasing the number of combinations of the number of thresholds and the determination, it is possible to detect a fire early while reducing false detection.

FIG. 10 is a flow chart showing the processing flow of the determination unit 70 of the same package type automatic fire extinguishing equipment.
If the start-up unit 71 determines that the state in which the carbon monoxide concentration exceeds the start-up threshold continues for a predetermined time, the determination unit 70 starts up and starts determination (step 101).
The determination unit 70 activated in step 1 determines whether the state in which the carbon monoxide concentration exceeds the second threshold continues for a predetermined time (step 102).
If it is determined in step 102 that the state in which the carbon monoxide concentration exceeds the second threshold does not continue for a predetermined time, it is determined whether the state in which the smoke concentration exceeds the third threshold continues for a predetermined time ( Step 103).
If it is determined in step 103 that the smoke concentration has exceeded the third threshold value for a predetermined time, it is determined that a fire has occurred (step 104).
If it is determined in step 103 that the state in which the smoke concentration exceeds the third threshold does not continue for a predetermined time, it is determined whether the state in which the temperature exceeds the fifth threshold continues for a predetermined time (step 105). ).
If it is determined in step 105 that the temperature exceeds the fifth threshold value for a predetermined time, it is determined that a fire has occurred (step 106).
If it is determined in step 105 that the state in which the temperature exceeds the fifth threshold does not continue for a predetermined time, it is determined that a fire has not occurred (step 107).
If it is determined in step 102 that the state in which the carbon monoxide concentration exceeds the second threshold continues for a predetermined time, it is determined whether the state in which the carbon monoxide concentration exceeds the eighth threshold continues for a predetermined time. (Step 108).
If it is determined in step 108 that the state in which the concentration of carbon monoxide exceeds the eighth threshold does not continue for a predetermined time, the state in which the smoke concentration exceeds the fourth threshold continues for a predetermined time, and the temperature It is determined whether the state in which the threshold value has been exceeded continues for a predetermined time (step 109).
If it is determined in step 109 that the smoke concentration exceeds the fourth threshold for a predetermined time and the temperature exceeds the sixth threshold for a predetermined time, it is determined that a fire has occurred ( Step 110).
If it is determined in step 109 that the state in which the smoke concentration exceeds the fourth threshold does not continue for a predetermined time, or it is determined that the state in which the temperature exceeds the sixth threshold does not continue for a predetermined time , Step 103.
If it is determined in step 108 that the state in which the carbon monoxide concentration exceeds the eighth threshold continues for a predetermined time, it is determined whether the state in which the carbon monoxide concentration exceeds the seventh threshold continues for a predetermined time. (Step 111).
If it is determined in step 111 that the state in which the concentration of carbon monoxide exceeds the seventh threshold does not continue for a predetermined time, it is determined whether the state in which the temperature exceeds the tenth threshold continues for a predetermined time ( Step 112).
If it is determined in step 112 that the temperature has exceeded the tenth threshold for a predetermined time, it is determined that a fire has occurred (step 113).
If it is determined in step 112 that the state in which the temperature exceeds the tenth threshold does not continue for a predetermined time, step 103 is performed.
If it is determined in step 111 that the state in which the concentration of carbon monoxide exceeds the seventh threshold continues for a predetermined time, it is determined whether the state in which the concentration of carbon monoxide exceeds the first threshold continues for a predetermined time. (Step 114).
If it is determined in step 114 that the state in which the carbon monoxide concentration exceeds the first threshold continues for a predetermined time, it is determined that a fire has occurred (step 115).
If it is determined in step 114 that the state in which the carbon monoxide concentration exceeds the first threshold does not continue for a predetermined time, it is determined whether the state in which the smoke concentration exceeds the ninth threshold continues for a predetermined time. (Step 116).
If it is determined in step 116 that the smoke concentration has exceeded the ninth threshold value for a predetermined time, it is determined that a fire has occurred (step 117).
If it is determined in step 116 that the smoke concentration has not exceeded the ninth threshold value for a predetermined time, step 103 is performed.

  The multiplex transmission type package type automatic fire extinguishing system of the present invention can be applied as a fire automatic fire extinguishing system in general residences, hospitals, office buildings and the like.

α Warning zone 10 Receiver (transmission master)
Reference Signs List 20 fire detection unit 30 selection valve 31 relay board 32 valve main body 32A valve rod 33 drive unit 34A first support plate 34B second support plate 35 gear unit 37 motor unit 37A drive shaft 39 control substrate 40 power supply line 42 conduction unit 50 self-diagnosis Unit 51 Diagnostic computer 60 Drive unit box 70 Determination unit 73 Noise removal unit 74 Noise storage unit

Claims (9)

Fire detection unit that detects a fire occurrence in a warning zone and sends a fire signal,
A receiver for receiving the fire signal;
A fire extinguisher storage container filled with a fire extinguisher,
An extinguishant outlet for releasing the extinguishant into the warning zone;
A extinguishant pipe connecting the extinguishant storage container and the extinguishant outlet;
A selection valve provided in the extinguishant pipe and opened in the event of a fire;
Package type automatic fire extinguishing equipment equipped with
The fire sensing unit and the receiving unit are connected by multiplex transmission means,
The selection valve includes a valve body, a drive unit for operating the valve body, and a drive unit box surrounding the drive unit.
A package type automatic fire extinguishing facility, comprising a relay substrate for relaying a signal transmitted and received between the fire detection unit and the reception unit in the drive unit box. The selection valve is a motor-operated valve driven by electricity,
The drive unit box has an opening at its lower surface,
The opening is closed by a rectangular thin plate-like first support plate,
The valve body and the first support plate are connected by a drive unit side connection portion,
The valve body comprises a valve stem having a valve body at one end thereof,
Causing the other end of the valve stem to project into the drive unit box from the drive unit side connection,
The drive unit is
A motor unit for operating the valve rod;
A gear portion in which a plurality of gears are engaged with the other end of the valve rod and a drive shaft of the motor portion;
A control substrate provided with a circuit for controlling the motor unit;
Equipped with
A rectangular thin plate-like second support plate is provided above the first support plate at a predetermined interval,
Mounting the motor unit on the second support plate;
Arranging the drive shaft and the gear portion of the motor portion between the first support plate and the second support plate;
The package type automatic fire extinguishing equipment according to claim 1, wherein the control substrate and the relay substrate are disposed above the second support plate at a predetermined interval. A conduction portion is provided in a power supply line connecting the fire sensing portion and the selection valve,
The package type automatic fire extinguishing equipment according to claim 1 or 2, wherein the conducting part conducts the power supply line when the fire detecting part is activated.   The package-type automatic fire extinguishing equipment according to any one of claims 1 to 3, wherein the fire detection unit is a temperature detector that detects a temperature.   The package type automatic fire extinguishing equipment according to any one of claims 1 to 3, wherein the fire detection unit is a carbon monoxide detector that detects a carbon monoxide concentration. The fire detection unit is a combined detector that detects carbon monoxide concentration, smoke concentration, and temperature,
A determination unit that determines fire occurrence by comparing the carbon monoxide concentration detected by the combined detector, the smoke concentration, or the temperature with a threshold;
A noise removing unit that removes noise of a detection signal from the combined detector;
And a noise storage unit for storing the size and time of the detection signal in the state where no fire occurs.
The noise removal unit determines the noise based on the magnitude and the time of the detection signal stored in the noise storage unit,
The package type automatic fire extinguishing method according to any one of claims 1 to 3, wherein the determination unit performs the determination based on the detection signal from which the noise is removed by the noise removal unit. Facility. Equipped with a self-diagnosis unit,
7. The self-diagnosis unit according to claim 1, wherein a diagnostic target is at least the fire detection unit, and a confirmation signal for confirming soundness is periodically transmitted to the fire detection unit. Package type automatic fire extinguishing equipment as described in 1 above. The self-diagnosis unit includes a diagnostic computer.
The package type automatic fire extinguishing equipment according to claim 7, wherein the diagnostic computer periodically determines whether or not to receive a signal of a predetermined voltage from the electric circuit to be diagnosed. The package type automatic fire extinguishing equipment according to any one of claims 1 to 8, wherein a wireless LAN is used as the multiplex transmission method.