JP3891407B2 - Disaster prevention equipment - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a disaster prevention facility that performs fire extinguishing and exhausting smoke, and relates to a disaster prevention facility that devises a method of exhausting smoke in a space where a fire is suppressed by a sprinkler facility.
[0002]
[Prior art]
Conventionally, when a fire breaks out, the resident who recognizes the occurrence of smoke above a predetermined level either manually opens the smoke outlet of the smoke evacuation facility, or uses a fire alarm in a control room such as a disaster prevention center or a security room. An administrator who has recognized the occurrence of a fire through a report identifies the location of the fire (such as a smoke exhaust area) on the display panel of the fire alarm, and then opens the corresponding smoke exhaust port remotely.
[0003]
When the smoke exhaust port is opened, the smoke exhauster is activated by the signal, and smoke is exhausted through the smoke exhaust port and the smoke exhaust duct.
There is also a smoke exhaust system that automatically opens the exhaust port in conjunction with the detection of the smoke detector.
The sprinkler facility operates in conjunction with the smoke evacuation facility. When a fire is detected by a heat detector or the like, the sprinkler head starts sprinkling and extinguishes fire.
[0004]
[Problems to be solved by the invention]
However, the method of opening the smoke exhaust port manually or remotely as described above is a problem of the location of the operation button, rushing to the site, initial fire extinguishing, etc. The operation reliability for exhausting smoke is low.
Here, if the smoke evacuation facility does not operate, there is a possibility that smoke generated in a fire or smoke including water vapor generated when water is sprinkled by a sprinkler cannot be effectively discharged.
[0005]
In addition, when the smoke evacuation facility operates in conjunction with the smoke detector, the smoke evacuation facility may malfunction even though no fire has occurred because the reliability of the smoke detector is not sufficient. For example, a malfunction may occur if smoking is performed in the vicinity of the smoke detector.
In addition, when smoke is exhausted without operating the sprinkler, the damper closes due to a rapid temperature rise, and smoke may stop in a short time.
[0006]
When the sprinkler is activated, watering will continue even if the fire is extinguished unless the valve is closed. In general, the fire site is closed by the fire brigade, and there is a risk of indoor water damage.
This invention is made paying attention to the above points, and makes it a subject to provide the disaster prevention equipment which can perform smoke discharge reliably at the time of a fire outbreak.
[0007]
[Means for Solving the Problems]
In order to solve the above-mentioned problems, the invention described in claim 1 of the present invention is a sprinkler detection means for detecting sprinkler from a sprinkler head and a smoke detector in a disaster prevention equipment having a sprinkler equipment and a smoke exhaust equipment . The smoke evacuation facility is characterized in that smoke is discharged when both the water sprinkling detection signal from the water sprinkling detection means and the smoke detection signal from the smoke detector are input .
[0008]
Next, the invention described in claim 2 is characterized in that, in the configuration described in claim 1, the water sprinkling detection means is a water flow detection device provided in a pipeline for supplying water to the sprinkler head. To do.
Next, the invention described in claim 3 divides the target space for disaster prevention into a plurality of sections with respect to the configuration described in claim 1 or claim 2, and is provided with an independent watering detection means for each section, The smoke exhausting facility is characterized by exhausting smoke in the section corresponding to the sprinkling detection means that outputs the sprinkling detection signal.
[0009]
Next, the invention described in claim 4 divides the space targeted for disaster prevention into a plurality of sections with respect to the configuration described in claim 1 or 2, and provides a smoke detector for each section, The water sprinkling detection means detects the presence or absence of water sprinkling from any of the sprinkler heads arranged in the plurality of sections, and the smoke exhausting equipment has both a water sprinkling detection signal and a smoke detection signal from the smoke detector. When the above signal is input, smoke is exhausted in the section where the smoke detector that outputs the smoke detection signal is arranged.
[0010]
Next, the invention described in claim 5 is provided with a fire extinguishing judgment means for judging whether or not it is a fire extinguishing state with respect to the configuration described in any one of claims 1 to 4, wherein the sprinkler equipment is The water spray from the sprinkler head is stopped based on the fire suppression signal from the fire suppression determination means.
Next, in the invention described in claim 6, in the configuration described in claim 5, when the sprinkler equipment is provided in a pipeline for supplying water to the sprinkler head and a fire suppression signal is input from the fire suppression determination means, A valve for closing the path is provided.
[0011]
Next, in the invention described in claim 7, in the configuration described in claim 5 or 6, the fire suppression determination unit includes a smoke concentration determination device, and the smoke concentration is detected by the smoke concentration determination device. It is characterized by determining whether it is a fire extinguishing state based on. Next, the invention described in claim 8 is the configuration described in claim 5 or claim 6, wherein the fire suppression judgment means includes a plurality of temperature sensors, and the temperature of the fire occurrence area and the temperature of the non-fire area. It is characterized by determining whether it is a fire extinguishing state based on a temperature difference with.
[0012]
Next, the invention described in claim 9 is the configuration described in claim 5 or claim 6, wherein the smoke exhausting facility communicates with the smoke exhaust port that can be opened and closed for smoke exhaust and the smoke exhaust port. And the fire suppression judging means judges whether or not the fire is extinguished based on the temperature in the smoke exhaust duct.
Here, the smoke exhaustion by the smoke exhaust facility is performed by opening the smoke exhaust port. In addition, when a smoke exhaust duct communicates with the smoke exhaust port, the smoke exhauster (fan or the like) is operated in conjunction with the opening.
[0013]
In addition, examples of the section include one smoke section or a plurality of smoke section groups.
The non-fire area refers to a room where it is determined that no fire has occurred, for example.
According to the present invention, the operation of the smoke evacuation equipment in an emergency can be performed by operating the smoke evacuation equipment in conjunction with the sprinkler equipment that operates automatically in the event of a fire and has almost no malfunction compared to the smoke detector. improves.
[0014]
In addition, smoke is discharged together with the water spray, so that the smoke and smoke containing water vapor from the water spray are also reliably discharged. Moreover, smoke temperature falls by sprinkler watering, and it is possible to exhaust smoke for a long time.
In addition, when the fire is extinguished, sprinkler watering can be automatically stopped to prevent water loss.
[0015]
DETAILED DESCRIPTION OF THE INVENTION
Next, embodiments of the present invention will be described with reference to the drawings.
FIG. 1 is a schematic configuration diagram on a predetermined floor for explaining the disaster prevention equipment of the present embodiment, and the space to be disaster prevention is divided into a plurality of smoke exhaust sections A, B, and C. Yes.
[0016]
A sprinkler head 2 of the sprinkler facility, a smoke detector 3 and a smoke exhaust port 4 of the smoke exhaust facility are disposed in each smoke exhaust section A, B, C.
Each sprinkler head 2 can be supplied with water through a pipe 6. In the pipe 6, branch pipes 6b and 6c branch from the main pipe 6a for each of the smoke exhaust sections A, B and C, and are arranged in the smoke exhaust sections A, B and C corresponding to the branch pipes 6b and 6c. The sprinkler head 2 is connected. Reference numeral 7 denotes a pump that pumps water into the pipe 6.
[0017]
In each branch pipe 6b, 6c arranged corresponding to each of the smoke exhaust sections A, B, C, a flowing water detection device 8 and an electromagnetic valve 9 are individually interposed. And each flowing water detection apparatus 8 arrange | positioned for every said smoke exhaustion area A, B, C will arrange | position the sprinkling detection signal in corresponding smoke exhaust area A, B, C, if the flow of water more than predetermined flow velocity is detected. The smoke exhaust port 4 can be supplied to the actuator 10 for operating the smoke exhaust port. The smoke exhaust port actuation actuator 10 operates to open the connected smoke exhaust port 4 when a detection signal is input.
[0018]
Each smoke outlet 4 can be opened and closed by operating a smoke outlet actuation actuator 10, and each smoke outlet 4 is connected to a smoke exhaust duct 11. A temperature sensor 12 is arranged in each branch pipe portion of the smoke exhaust duct 11 in the vicinity of each smoke exhaust port 4. Each temperature sensor 12 outputs the detected temperature signal to the fire suppression determination unit 13 constituting the fire suppression determination means.
[0019]
If each fire suppression judgment part 13 judges based on the temperature signal from each temperature sensor 12 that the inside of the smoke exhaust duct 11 in the vicinity of the smoke outlet 4 has become the first temperature or higher, it starts judgment of the fire extinguishing state, and then If it is determined that the temperature in the corresponding smoke exhaust duct 11 has become equal to or lower than the second temperature, a close command is supplied to the electromagnetic valves 9 corresponding to the corresponding smoke exhaust sections A, B, and C.
[0020]
For example, the first temperature is a temperature such as 70 ° C. at which a fire occurrence state can be detected, and the second temperature is a temperature such as 30 ° C. at which a fire extinguishing state can be determined. The second temperature may be determined based on a temperature difference from the outside air temperature or the temperature of the non-fire room. Here, the presence / absence of the fire occurrence state is not limited to the above determination. For example, the fire occurrence state may be determined by elapse of a predetermined time after the corresponding smoke outlet 4 is opened.
[0021]
Each electromagnetic valve 9 receives a close command and closes the valve to shut off the water supply to the sprinkler head 2 in the corresponding section. Here, the electromagnetic valve 9 is open in the initial state. Moreover, even if it is once closed, it can be returned to the open state (initial state) by a signal from the management room. In addition, although not shown in figure in the main pipe 6a, the separate valve which can be operated manually etc. is interposed.
[0022]
Here, the smoke detector 3 can supply a smoke detection signal to a management room (not shown). Each smoke outlet operating actuator 10 can be operated by a signal from the management room. That is, the smoke evacuation equipment can be remotely operated as in the conventional case.
Next, functions and effects of the disaster prevention facility will be described.
[0023]
For example, when a fire occurs in the smoke exhaust section A, water is sprinkled from the sprinkler head 2a arranged in the smoke exhaust section due to the occurrence of the fire. In this sprinkling state, since the flow of water is generated in the branch pipe 6b corresponding to the smoke exhausting section A, this water flow is detected by the water flow detecting device 8a, and the smoke detecting section A corresponding to the sprinkling detection signal. Is supplied to the smoke exhaust port actuating actuator 10a. As a result, the corresponding smoke outlet 4a is opened. As a result, even if the remote control from the management room is not performed, the smoke emission in the smoke emission section A where the fire has occurred is reliably performed.
[0024]
At this time, since the smoke is cooled by sprinkling from the sprinkler head 2a, the specifications of the smoke exhausting equipment such as the smoke exhausting duct 11 and the smoke exhausting machine (fan, etc.) are not necessarily insulative. It does not have to be a high specification. That is, it becomes possible to reduce the fire resistance specifications of the smoke exhaust duct 11 and the like. Furthermore, since the smoke emission temperature is lowered, it becomes possible to perform smoke emission for a long time at a temperature equal to or lower than the damper closing temperature of the smoke exhaust duct 11 (for example, 280 ° C. or lower). This also makes it possible to use the forced smoke exhausting part in the smoke exhausting facility also with general air conditioning and ventilation equipment.
[0025]
In addition, when the fire suppression judgment unit 13a detects that the temperature in the smoke exhaust duct 11 through which the smoke passes becomes equal to or higher than the first temperature, the judgment process of whether or not the fire suppression judgment unit 13a is in a fire extinguishing state starts. Then, if it is determined that the temperature passing through the smoke exhaust duct 11 has become equal to or lower than the second temperature due to fire suppression, it is determined that the fire has been extinguished, and a close command is supplied to the corresponding electromagnetic valve 9a. The electromagnetic valve 9a to which the closing command is supplied is in a closed state, the supply of water to the corresponding sprinkler head 2 is shut off, and water spraying stops.
[0026]
As a result, water spraying more than necessary can be avoided and water damage can be minimized.
In this way, even if the manual operation of opening the smoke outlet 4 and stopping the sprinkler from the sprinkler head are not carried out, the smoke is reliably discharged and the sprinkler can be stopped after the fire is extinguished.
[0027]
Here, a closing command for the electromagnetic valve 9 can also be issued from the management room.
Moreover, in the said embodiment, although it is determined whether it is a fire extinguishing state based on the temperature in the smoke exhaust duct 11, it is not limited to this. A fire sensor may be used to determine the fire situation in the target compartment to determine whether or not the fire is extinguished. Alternatively, a smoke concentration sensor (smoke concentration determination device) is installed in each section, and the smoke concentration in the section where water is sprayed from the springer head 2 is measured and becomes a predetermined value or less (for example, 10% or less). It may be determined whether or not the fire is extinguished in the compartment.
[0028]
Moreover, in the said embodiment, although the supply of water is interrupted | blocked by closing the electromagnetic valve 9, it is not limited to this. For example, the sprinkling may be stopped by receiving a signal and stopping the operation of the pump 7 for pumping water to the pipe 6 or reducing the pressure.
Moreover, in the said embodiment, although it has comprised so that control, such as opening and closing of the smoke exhaust port 4, may be performed for every division, it is not limited to this. You may comprise so that the said control may be performed per several division units. Moreover, it is good also as a structure which concentrated so that all the control might be performed by the main controller 20, like 2nd Embodiment mentioned later.
[0029]
Moreover, although the case where each floor is divided into a plurality of smoke exhaust sections A, B, and C is described, the same applies to the case where the disaster prevention target area is composed of one smoke exhaust section.
Moreover, in the said embodiment, although the water sprinkling detection means is comprised by the flowing water detection apparatus 8, the means to detect fire occurrence, such as a heat sensor, is good also as a sprinkling detection means. However, when the flowing water detection device 8 is used, it is possible to reliably perform smoke exhaustion in conjunction with water sprinkling.
[0030]
When a fire is detected after the sprinkler has stopped sprinkling and the corresponding sprinkler head 2 is sprinkled, an opening command can be supplied to the electromagnetic valve 9 so that the electromagnetic valve 9 is opened and sprinkling is started again. And good.
Further, in the above description, only the process of opening the smoke outlet 4 by the smoke outlet activation actuator 10 has been described, but it is assumed that the smoke exhauster operates in conjunction therewith.
[0031]
Next, a second embodiment will be described with reference to the drawings.
The configuration of the sprinkler facility and the smoke exhaust facility of the present embodiment is the same as that of the first embodiment as shown in FIG.
However, the flowing water detection device 8 and the electromagnetic valve 9 provided in the sprinkler facility are provided in the main pipe 6a for supplying water to each of the plurality of smoke exhaust sections A, B, and C, and the flowing water detection device 8 mainly outputs the detection signal. The electromagnetic valve 9 can be supplied to the controller 20 and the opening and closing of the electromagnetic valve 9 is controlled by a command from the main controller 20.
[0032]
In addition, signals from the smoke detector 3 and the temperature sensor 12 are also supplied to the main controller 20, and the opening and closing of each smoke outlet operating actuator 10 is controlled by a command from the main controller 20.
Reference numeral 30 represents a display device and an operation panel provided in the management room, and can report a fire situation and remote control.
[0033]
When the main controller 20 receives a smoke detection signal from the smoke detector 3, the main controller 20 outputs a signal to that effect to the display device. Similarly, when a detection signal is input from the flowing water detection device 8, a signal to that effect is output to the display panel.
Further, when the smoke emission control unit 20A of the main controller 20 receives the detection signal from the flowing water detection device 8, the smoke emission control unit 20A determines that a fire has occurred in any of a plurality of corresponding sections, that is, smoke emission is necessary. When a smoke detection signal is input from the sensor 3, an open command is supplied to the smoke outlet operation actuator 10 in the section where the smoke sensor 3 is disposed. Here, even if the detection signal is input from the smoke detector 3 in the absence of the detection signal from the flowing water detection device 8, it is ignored as an erroneous signal. However, a smoke detection signal is supplied to the display panel.
[0034]
As a result, smoke malfunction due to erroneous detection of the smoke detector 3 is prevented, and smoke can be reliably exhausted only in the event of a fire.
If the fire suppression determination unit 20B of the main controller 20 determines that the temperature in the smoke exhaust duct 11 has become equal to or higher than the first temperature based on the signal from the temperature sensor 12 in the vicinity of the opened smoke exhaust port 4, the fire suppression state. When the determination process is started and it is determined that the temperature in the corresponding smoke exhaust duct 11 has become equal to or lower than the second temperature, it is determined that the fire is extinguished and a close command is supplied to the electromagnetic valve 9 to supply water. Shut off.
[0035]
For example, when water is sprinkled from the sprinkler head 2 in two sections, the close command is supplied to the electromagnetic valve 9 only when both the two sections are determined to be in a fire extinguishing state.
This prevents unnecessary water sprinkling and suppresses water loss.
Other configurations, operations, and effects are the same as those in the first embodiment.
[0036]
【The invention's effect】
As described above, according to the present invention, since the flue gas operates in conjunction with the fire extinguishing by the sprinkler equipment, the operational reliability of the flue gas equipment is improved, the evacuation safety is increased, and the fire fighting activities are easily performed.
In addition, smoke containing water vapor from the sprinkler can be reliably discharged.
[0037]
Furthermore, since the fire is suppressed by the sprinkler, the temperature of the smoke to be discharged is lowered, so that the fire resistance specification of a general smoke exhaust facility can be lowered.
Since the fire is suppressed by the sprinkler, the temperature of the discharged smoke is longer than the temperature at which the damper is closed, and the smoke exhausting facility can be operated for a long time.
In particular, in the invention according to claim 4, it is possible to prevent the operation of the smoke exhausting facility due to the malfunction of the smoke sensor as compared with the case where the smoke exhaust port is operated in conjunction with the smoke sensor.
Further, according to any one of claims 5 to 9, it is possible to prevent water loss.
[Brief description of the drawings]
FIG. 1 is a diagram for explaining a disaster prevention facility according to a first embodiment of the present invention.
FIG. 2 is a diagram for explaining a disaster prevention facility according to a second embodiment of the present invention.
[Explanation of symbols]
A, B, C Section 2 Sprinkler equipment 3 Smoke detector 4 Smoke outlet 6 Pipe 6a Main pipe 6b, 6c Branch pipe 7 Pump 8 Flowing water detection device 9 Electromagnetic bubble 10 Smoke outlet operation actuator 11 Smoke duct 12 Temperature sensor 13 Fire suppression determination unit 20 Main controller 20A Smoke control unit 20B Fire suppression determination unit

Claims (9)

In disaster installation comprising a sprinkler system and smoke equipment, sprinkling detecting means for detecting the watering sprinkler head, and provided the smoke detector, the flue gas facility, watering detection signal and smoke from the shower detecting means Disaster prevention equipment characterized by smoke emission when both signals of smoke detection signal from the vessel are input . The disaster prevention facility according to claim 1, wherein the water sprinkling detection means is a water flow detection device provided in a pipeline for supplying water to the sprinkler head. The target space for disaster prevention is divided into a plurality of sections, and independent sprinkling detection means are provided for each section, and the smoke exhausting facility performs smoke discharge in the section corresponding to the sprinkling detection means that outputs the sprinkling detection signal. The disaster prevention equipment according to claim 1 or claim 2, characterized by the above. The space targeted for disaster prevention is divided into a plurality of sections, and smoke detectors are provided in each section, and the water sprinkling detection means detects the presence or absence of water sprinkling from any of the sprinkler heads arranged in the plurality of sections. However, when both the water sprinkling detection signal and the smoke detection signal from the smoke detector are input, the smoke exhausting equipment performs smoke exhaustion in the section where the smoke detector that outputs the smoke detection signal is disposed. The disaster prevention equipment according to claim 1 or claim 2, characterized by the above. 5. A fire extinguishing judgment means for judging whether or not the fire is extinguished, wherein the sprinkler facility stops watering from the sprinkler head based on a fire extinguishing signal from the fire extinguishing judgment means. The disaster prevention equipment described in any one of the above. 6. The disaster prevention equipment according to claim 5, wherein the sprinkler equipment includes a valve that is provided in a pipe that supplies water to the sprinkler head and that closes the pipe when a fire extinguishing signal is input from the fire extinguishing judgment means. 7. The disaster prevention according to claim 5 or 6, wherein the fire suppression determination means includes a smoke concentration determination device, and determines whether or not a fire is extinguished based on the smoke concentration detected by the smoke concentration determination device. Facility. The fire suppression determination means includes a plurality of temperature sensors, and determines whether or not the fire is extinguished based on a temperature difference between the temperature of the fire occurrence area and the temperature of the non-fire area. Disaster prevention equipment described in 6. The smoke exhaust facility includes an openable and closable smoke exhaust port for smoke exhaust, and a smoke exhaust duct communicating with the smoke exhaust port, and the fire suppression judgment unit is configured to suppress a fire suppression state based on a temperature in the smoke exhaust duct. It determines whether it is, The disaster prevention equipment described in Claim 5 or Claim 6 characterized by the above-mentioned.

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