JP7083599B2 - Fire extinguishing equipment - Google Patents

Description

The present invention relates to a fire extinguishing system in which a fire extinguishing device is provided in a garbage pit.

Conventionally, various kinds of garbage are carried into the garbage pit, so that a fire may occur spontaneously. In order to extinguish such a fire, a fire extinguishing system is generally provided in the garbage pit. As a fire extinguishing system, for example, there is one equipped with a water cannon that discharges water toward the position where a fire has occurred (see, for example, Patent Document 1). The garbage pit has a capacity of, for example, thousands to tens of thousands of cubic meters so as to accommodate the garbage before incineration, depending on the scale of the incinerator. Therefore, the fire extinguishing equipment described in Patent Document 1 is effective by dividing such a large space dust pit into a plurality of areas, monitoring the occurrence of a fire, and discharging water to the area where the fire is occurring. It is configured to extinguish a fire.

Further, a fire extinguishing agent addition device that improves the fire extinguishing ability of a fire extinguishing facility by adding a fire extinguishing agent (water film forming agent) to the water discharged from a water cannon is disclosed (see, for example, Patent Document 2). .. The fire extinguishing agent addition device of Patent Document 2 is provided with an electric valve on a piping path connecting the fire extinguishing agent tank and the water distribution pipe for fire extinguishing, and in the event of a fire, the electric valve is opened to inject the fire extinguishing agent into the water distribution pipe. A fire extinguishing system equipped with such a fire extinguishing agent addition device can enhance the fire extinguishing ability for a fire such as a plastic fire that is difficult to extinguish with water alone.

Japanese Unexamined Patent Publication No. 10-118207 Japanese Unexamined Patent Publication No. 2006-158544

By the way, as described above, since various kinds of garbage are carried into the garbage pit, a bad odor may be generated in the garbage pit depending on the type of garbage. However, although there are some that have fire extinguishing equipment installed in the garbage pit as in Patent Document 1 and Patent Document 2, the actual situation is that no measures are taken against bad odors.

The present invention has been made to solve the above-mentioned problems, and an object of the present invention is to provide a fire extinguishing system for preventing a bad odor in a garbage pit.

The fire extinguishing equipment according to the present invention is a fire extinguishing equipment provided with a fire extinguishing device in a trash pit. Therefore, the foam released when the malodor is generated is generated by adding a highly viscous substance to the foam agent, and has a longer reduction time to return to the foam aqueous solution than the foam used for extinguishing a fire. ..
Further, the fire extinguishing equipment according to the present invention is a fire extinguishing equipment provided with a fire extinguishing device in a trash pit, a foam generator that discharges bubbles into the trash pit, and a device that detects a bad odor when a bad odor is generated in the trash pit. When the malodor detection device provided in the dust pit and the malodor detection device detect the generation of the malodor in the dust pit, the foam is discharged from the foam generator and becomes a source of the malodor. The malodor detecting device is provided with a control unit for controlling the air to be covered with the bubbles, and the malodor detecting device operates when there is an odor that is perceived as a malodor, without detecting only the dust in the dust pit.
Further, the fire extinguishing equipment is provided with an operation panel for displaying information, and the operation panel is provided with a detection information display unit for displaying the occurrence of a bad odor when the occurrence of a bad odor is detected by the bad odor detecting device . When a fire is detected in the trash pit, the detection information display unit displays a fire occurrence and a fire address, and the foam generator displays when at least one of a fire and a foul odor occurs in the trash pit. It emits bubbles .

In the present invention, the surface of the dust is covered with bubbles, and the outside air and the foul odor source are struck, so that the foul odor of the dust pit can be cut off.
Further, in the present invention, since the fire extinguishing equipment is provided with a fire extinguishing device that discharges bubbles or water, it is possible to minimize the structure newly added to prevent malodor.
Further, in the present invention, the foam released when a bad odor is generated is generated by adding a highly viscous substance to the foaming agent, so that the foam is more stable than the conventional foam for fire extinguishing and returns to an aqueous solution. Since it is difficult, the effect of preventing bad odors in the dust pit can be maintained.

It is external perspective view of the garbage pit which installed the fire extinguishing equipment which concerns on Embodiment 1 of this invention. It is a schematic diagram which shows the screen of the operation panel which concerns on Embodiment 1 of this invention. It is a block diagram which shows the whole structure of the fire extinguishing equipment which concerns on Embodiment 1 of this invention. It is explanatory drawing which corresponded the extension position of the nozzle which concerns on Embodiment 1 of this invention, and the radial shape. It is a flowchart which shows the control performed by the fire extinguishing apparatus control unit which concerns on Embodiment 1 of this invention. It is a schematic block diagram of the garbage pit which installed the fire extinguishing equipment which concerns on Embodiment 2 of this invention. It is a schematic diagram which shows the structure of the bubble generator which concerns on Embodiment 2 of this invention.

Embodiment 1.
FIG. 1 is an external perspective view of a garbage pit 2 in which the fire extinguishing equipment 1 according to the first embodiment of the present invention is installed. FIG. 2 is a schematic view showing an operation panel according to the first embodiment of the present invention. As shown in FIG. 1, the fire extinguishing equipment 1 is provided in the garbage pit 2 and includes a fire detection device 11, a stink detection device 12, a fire extinguishing device 3, a water supply circuit 4, an addition circuit 5, and the like.

The dust pit 2 is formed as a rectangular parallelepiped container, and dust is thrown in through a slot (not shown). The garbage pit 2 is provided with a crane 21 for moving the garbage, and the crane 21 transports the garbage stored in the garbage pit 2 to an incinerator (not shown). Further, a crane operation room 22 is arranged in the center of the upper part of the garbage pit 2, and an operation panel 23 or the like operated by an operator is installed in the crane operation room 22. The crane 21 is configured to be switchable between manual operation and automatic operation, and during manual operation, the operator moves the crane 21 in the front-rear direction (arrow X direction) and left-right direction (arrow Y direction) via the operation panel 23. And can be moved in the vertical direction (arrow Z direction).

The fire extinguishing device 3 is installed on the side wall of the upper part of the garbage pit 2, and is composed of, for example, a water cannon. The fire extinguishing device 3 is connected to the water supply circuit 4 and the addition circuit 5, and is configured to generate bubbles by water and foam chemicals supplied from both circuits and discharge them into the dust pit 2. The water supply circuit 4 is a circuit that supplies the water in the water storage tank 44 to the fire extinguishing device 3 via the first pipe R1. The addition circuit 5 is a circuit that supplies the fire extinguishing agent (foam agent) in the first tank 51 and the gel in the second tank 56 to the fire extinguishing device 3 via the second pipe R2.

Further, the fire extinguishing equipment 1 includes a manual operation unit 39 for operating the fire extinguishing device 3. The manual operation unit 39 is provided with, for example, a joystick or the like, and when the fire extinguishing device 3 is manually operated, the operator may control the aiming control of the fire extinguishing device 3 and the foam emission control via the manual operation unit 39. can. The fire extinguishing device 3 is housed in the wall surface of the dust pit 2 so as not to interfere with the operation of the crane 21 except when emitting bubbles.

The fire detection device 11 is installed near the ceiling surface of the garbage pit 2, and is composed of, for example, an infrared radiation thermometer or the like. The fire detection device 11 scans the surface temperature in the dust pit 2 in a two-dimensional plane. Specifically, the fire detection device 11 divides the plane in the front-rear direction (arrow X direction) and the left-right direction (arrow Y direction) in the dust pit 2 into a plurality of regions and monitors them.

The malodor detecting device 12 detects a malodor, and is arranged on the side wall of the dust pit 2 in FIG. 1. Since the malodor detection device 12 detects the malodor in the dust pit 2, it is preferable to use a relatively low-sensitivity odor sensor such as a metal oxide sensor. Any number of malodor detecting devices 12 may be installed in any place as long as the malodor of the dust pit 2 can be detected. Here, the reason why the sensitivity of the malodor detecting device 12 is low is that the inside of the dust pit 2 has an odorous atmosphere to some extent. This is to operate when there is a perceived odor.

FIG. 2 shows the screen of the operation panel 7a installed in the crane operation room 22. Information on the fire extinguishing equipment 1 is displayed on the operation panel 7a, and the operator can input an operation command or the like via the operation panel 7a. The operation mode selection unit 71 is for selecting an operation mode from an automatic mode, a semi-automatic mode, and a manual mode. The address designation unit 72 is composed of, for example, a touch panel, and the screen divided into a plurality of parts in the garbage pit 2 and the address are displayed in association with each other, and the address is designated by touching the divided area on the screen. The detection information display unit 73 displays a fire occurrence and a fire address when a fire is detected by the fire detection device 11. In FIG. 2, as an example, the occurrence of a fire is highlighted and the address 10 is displayed so that the operator can know the occurrence and the position of the fire. Further, the detection information display unit 73 displays the occurrence of a bad odor when the bad odor is detected by the above-mentioned bad odor detecting device 12.

Next, the configuration and function of the fire extinguishing equipment 1 will be described with reference to FIGS. 3 and 4. FIG. 3 is a configuration diagram showing the overall configuration of the fire extinguishing equipment according to the first embodiment of the present invention. FIG. 4 is an explanatory diagram in which the extension position of the nozzle and the radial shape according to the first embodiment of the present invention are associated with each other.

As shown in FIG. 3, the fire extinguishing device 3 includes a nozzle 31 for discharging bubbles, a mixer 38, and the like. The mixer 38 mixes the water supplied from the water supply circuit 4 with the foaming agent or the like supplied from the addition circuit 5 to make a foam aqueous solution. Further, the fire extinguishing device 3 is provided with a turning shaft and a depression / elevation axis (not shown), and is configured so that the turning angle or the depression / elevation angle of the nozzle 31 is changed by driving each shaft by a motor.

Further, as shown in FIG. 4, the nozzle 31 switches the radial shape of fire extinguishing water such as water discharged from the nozzle 31 or an aqueous foam solution by changing the nozzle length (nozzle stroke). Inside the cylindrical nozzle body 32, a regulating member 34 that regulates the flow of fire extinguishing water is provided by fixing it to the support plate 35 with a nut. Further, a cylindrical outer cylinder 33 is arranged on the outer periphery of the nozzle body 32 on the discharge port side. The outer cylinder 33 is driven by a motor 36 or the like, and the extension position with respect to the nozzle body 32 is controlled. As shown in FIG. 4A, when the outer cylinder 33 is extended, the radial shape is rod-shaped, and the range of the discharged fire extinguishing water becomes long. On the other hand, as shown in FIG. 4B, when the outer cylinder 33 is degenerated, the radial shape becomes a spray-like shape, and the range of the fire extinguishing water to be discharged is widened. Although not shown, the nozzle 31 is provided with a separately foaming member such as a deflector or a net so that bubbles can be easily generated when the fire extinguishing water to be discharged is a foam aqueous solution, similar to the outer cylinder 33. The foam may be moved to increase the generation of foam by hitting the foam member with the foam aqueous solution.

The water supply circuit 4 further includes a water supply pump 43 for pumping water from the water storage tank 44, a water supply valve 41 composed of an electric valve or the like, a pump motor 42 or the like for driving the water supply pump 43, and the water supply pump 43 and the water supply valve. 41 is provided in the first pipe R1.

Further, in the addition circuit 5, the first tank 51 for storing the foam agent is connected to the second pipe R2 via the third pipe R3, and the second tank 56 for storing the gel is connected to the second pipe R2 via the fourth pipe R4. It is connected to the pipe R2. Further, the addition circuit 5 includes a first valve 54 and a second valve 59, respectively, which are composed of an electric valve or the like. The first valve 54 is provided in the second pipe R2, and when in the open state, a foaming agent or a mixed solution of the foaming agent and the gel flows toward the first pipe R1. The second valve 59 is provided in the fourth pipe R4, and when in the open state, the gel flows toward the second pipe R2.

Here, the foam generated by adding a fire extinguishing agent (foam agent) to water has higher fire extinguishing performance than water. Further, the foam produced by adding a mixed solution of a foaming agent and a highly viscous substance (for example, gel) to water has a longer reduction time than that in which only the foaming agent is added. That is, the fire extinguishing equipment 1 can generate a foam having a higher viscosity than water or the like and which is hard to disappear, that is, a foam having a high stability which is hard to return to the aqueous foam solution. For example, the reduction time of foam to an aqueous solution can be increased by about 150 times by adding a gel to the foam agent. Since the dust stored in the dust pit 2 is then transferred to an incinerator and incinerated, it is not necessary to remove bubbles, and such bubbles can maintain the effect of suppressing bad odors. Further, the bubbles are less likely to permeate the dust than, for example, a liquid containing a deodorant, and spread along the surface of the dust due to gravity. Therefore, even when the bubbles are discharged without controlling the position of the place to be discharged in the dust pit, the bubbles easily reach the position of the dust that is a source of bad odor.

Here, the reduction time will be described in detail. The ministerial ordinance on firefighting stipulates a reduction time for foam fire extinguishing agents, which stipulates a 25% reduction time. The 25% reduction time refers to the time required for 25% of the amount of the aqueous foam solution before foaming to be reduced from the foamed foam to the aqueous foam solution in [minutes], and is usually about 1 to 3 minutes. Is. Compared with the foam used for extinguishing a fire (referred to as extinguishing foam), the foam used for preventing the diffusion of malodor used in the present embodiment has a reduction time of 10 to 100 times or more. As an example, a few hours after the foam is released, 75% of the released foam is maintained in the foam state, and 25% of the foam is reduced to the aqueous foam solution. Is released as bubbles.

The fire extinguishing equipment 1 further includes a fire extinguishing device control unit 6 that controls the fire extinguishing device 3. The fire extinguishing device control unit 6 includes a main control unit 61, a timer 62, an aiming control unit 63, a water supply control unit 64, an addition control unit 65, a storage unit 66, and the like.

The main control unit 61 acquires fire occurrence information and fire occurrence position information from the fire detection device 11, and acquires malodor generation information from the malodor detection device 12. Further, the main control unit 61 determines the occurrence of fire and foul odor at predetermined time based on the acquired information, and according to the determination result, the aiming control unit 63, the water supply control unit 64, the addition control unit 65, and A signal is output to the operation unit 7. Specifically, when a fire is occurring, the main control unit 61 outputs fire occurrence position information to the aiming control unit 63, outputs a water supply start command to the water supply control unit 64, and if necessary. It outputs an addition command at the time of a fire to the addition control unit 65, and outputs information indicating a fire occurrence and a fire occurrence position to the operation unit 7. Further, when a bad odor is generated, the main control unit 61 outputs a signal indicating the generation of the bad odor to the aiming control unit 63, outputs a water supply start command to the water supply control unit 64, and controls addition when the bad odor is generated. An addition command is output to the unit 65, and information indicating the generation of a bad odor is output to the operation unit 7. Further, the main control unit 61 outputs a control signal to the crane control unit 20 and receives a signal output from the crane control unit 20.

Here, the occurrence of a bad odor means, for example, when the measured value of the bad odor detection device 12 becomes equal to or higher than the set value, or when the operator inputs an input indicating the generation of the bad odor via the operation unit 7. Etc.

The aiming control unit 63 performs aiming control and radiation shape control of the fire extinguishing device 3 based on the fire occurrence position information input from the main control unit 61. Specifically, the aiming control unit 63 performs aiming control by adjusting the depression / elevation angle and the turning angle, can discharge water to a specific address shown in FIG. 2, and radiates by adjusting the nozzle stroke. Perform shape control. Further, the aiming control unit 63 controls the radiation shape of the fire extinguishing device 3 based on the signal indicating the generation of bad odor input from the main control unit 61. Even when a bad odor is generated, aiming control may be performed so that bubbles can be emitted to a specific address.

The water supply control unit 64 outputs a drive control signal to the water supply pump 43 and the pump motor 42 based on the water supply start command input from the main control unit 61, and controls the opening and closing of the water supply valve 41. The addition control unit 65 controls the opening and closing of the first valve 54 and the second valve 59 of the addition circuit 5 based on the addition command input from the main control unit 61.

The storage unit 66 stores various information referred to by the main control unit 61, the aiming control unit 63, the water supply control unit 64, the addition control unit 65, and the like. Further, the operation unit 7 gives various operation instructions by the operator and displays various information. The operation unit 7 includes the operation panel 23, the manual operation unit 39, the operation panel 7a, and the like described above. The timer 62 is activated by a signal from the main control unit 61, and outputs a time-up signal to the main control unit 61 at a preset time.

FIG. 5 is a flowchart showing the control performed by the fire extinguishing device control unit 6 according to the first embodiment of the present invention. The fire detection device 11 monitors the occurrence of a fire in the garbage pit 2 and transmits the detected information to the fire extinguishing device control unit 6. In the fire extinguishing device control unit 6, the main control unit 61 determines whether or not a fire has occurred based on the information received from the fire detection device 11 (step ST101). Here, the main control unit 61 determines that a fire has occurred, for example, when the detection temperature of the fire detection device 11 exceeds the set temperature. When a fire has occurred (step ST101: YES), the main control unit 61 displays the fire occurrence and the position where the fire has occurred on the operation panel 7a (step ST102). Further, the aiming control unit 63 acquires control data corresponding to the generation position from the storage unit 66, and controls the turning angle, depression / elevation angle, nozzle stroke, and the like of the fire extinguishing device 3 (step ST103). At this time, the swivel shaft, the elevation shaft, and the outer cylinder 33 are driven via their respective motors. Further, the addition control unit 65 controls the valve in the event of a fire (step ST104). That is, the first valve 54 is opened and the second valve 59 is closed. Next, the water supply control unit 64 opens the water supply valve 41 and drives the water supply pump 43 by the pump motor 42 to distribute water to the first pipe R1. At this time, since the first valve 54 is open, the fire extinguishing agent is added from the first tank 51 so as to be sucked into the water flow of the first pipe R1 via the third pipe R3 and the second pipe R2. To. As a result, the release of bubbles is started (step ST105). After that, the main control unit 61 determines whether or not there is a change in the fire address at a predetermined timing based on the information received from the fire detection device 11 (step ST106), and if there is a change (step ST106: YES), the fire extinguishing device control unit 6 repeats steps ST102 to ST106 to extinguish the fire at a new fire position. If there is no change in the fire position (step ST106: NO), the main control unit 61 determines whether or not to end the emission of bubbles based on the detection information received from the fire detection device 11 (step ST107). .. At this time, if the entire fire is extinguished and the temperature detected by the fire detection device 11 is equal to or lower than the set temperature, the main control unit 61 ends the emission of bubbles (step ST107: YES, step ST108). On the other hand, if the detected temperature still exceeds the set temperature, the main control unit 61 continues to emit bubbles (step ST107: NO), and repeats step ST106 and step ST107. Although the case where the first valve 54 is opened to discharge the aqueous foam solution has been described here, the first valve 54 may be closed and only water may be discharged to extinguish the fire.

The malodor detection device 12 monitors the generation of malodor in the dust pit 2 and transmits the detected information to the fire extinguishing device control unit 6. When it is determined in step ST101 above that no fire has occurred (step ST101: NO), the main control unit 61 determines whether or not an offensive odor is generated based on the information received from the malodor detection device 12. (Step ST111). Here, the main control unit 61 determines, for example, that a bad odor is generated when the measured value of the bad odor detecting device 12 exceeds the set value. Then, when no bad odor is generated (step ST111: NO), the main control unit 61 returns to step ST101 and determines whether or not a fire signal is generated. On the other hand, when a bad odor is generated (step ST111: YES), the main control unit 61 displays the bad odor generation on the operation panel 7a (step ST112). Further, the aiming control unit 63 controls the nozzle stroke of the fire extinguishing device 3 (step ST113). At this time, the outer cylinder 33 is moved to a degenerate position via the motor 36 so that bubbles can be discharged over a wide range. The addition control unit 65 controls the valve when a bad odor is generated (step ST114). That is, the addition control unit 65 opens the first valve 54 and the second valve 59. Next, the water supply control unit 64 opens the water supply valve 41 and drives the water supply pump 43 by the pump motor 42 to distribute water to the first pipe R1. At this time, since both the first valve 54 and the second valve 59 are open, the foaming agent of the first tank 51 passes through the third pipe R3, and the foaming agent of the first tank 51 also passes through the fourth pipe R4 to the second tank 56. Gel is added to the water stream of the first pipe R1 via the second pipe R2. As a result, the release of bubbles is started (step ST115). The foam released at this time is generated from the foam aqueous solution containing the gel, and has a longer reduction time, that is, a time until disappearance (time to return to the foam aqueous solution) than the foam generated at the time of extinguishing the fire. After that, the main control unit 61 determines whether or not to end the emission of bubbles (step ST116). At this time, the main control unit 61 ends the emission of bubbles when, for example, the measured value received from the malodor detection device 12 is equal to or less than the set value (step ST116: YES, step ST108). On the other hand, if the measured value exceeds the set value, the main control unit 61 continues to emit bubbles (step ST116: NO) and repeats step ST116.

The main control unit 61 may end the foam emission when a predetermined time has elapsed from the start of the foam emission in step ST116, and the foam may be generated on the entire surface of the dust pit 2 after confirming from the operation room 22. If it can be visually confirmed that the bubbles have been released, the release of bubbles may be stopped. Further, the aiming control unit 63 has described the configuration in which bubbles are emitted in the form of a spray when a bad odor is generated in step ST113, but the present invention is not particularly limited to this. Further, as an example of a method of mixing a foaming agent with water, a method of mixing a few percent of the foaming agent with water by a ventilating action due to the passage of water has been described, but the mixing method of the foaming agent and water is not particularly limited. ..

Further, the malodor detection device 12 monitors each area (address) instead of monitoring the odor level of the entire dust pit 2, and the fire extinguishing device control unit 6 locally emits bubbles to the position where the malodor is generated in the dust pit 2. It may be a configuration. In this case, the malodor detection device 12 is configured by arranging, for example, a plurality of odor sensors in a circle shape or at each of the above-mentioned addresses on the ceiling or the like of the garbage pit 2. Then, the main control unit 61 may output the malodor generation position to the aiming control unit 63 based on the detection information of each odor sensor associated with the address.

Alternatively, the malodor detection device 12 may have one odor sensor arranged on the crane 21. Since the odor diffuses into the air, it is difficult to identify the position where the odor is generated in the trash pit 2 having a constant odor level. However, when the odor sensor is installed on the crane 21 in this way, the odor is dust. Since it is possible to measure in close proximity to, it becomes easy to identify the position where the bad odor is generated. As a general technique for garbage pits, when a crane grabs and moves garbage, garbage height information indicating how much garbage is present at each garbage pit address is measured when the crane is moved up and down, and the garbage height is measured. The information is stored in the storage unit 66. Then, the aiming control of the fire extinguishing device 3 is performed based on the dust height information. Therefore, when moving the crane, the dust height information and the output value of the odor sansa at that address are stored for each address of the trash pit 2, and when the data of the entire area (address) of the trash pit 2 is collected, the output of the odor sensor is obtained. The address with the highest value may be determined to have a source of malodor.

Then, when the position where the bad odor is generated can be specified, the fire extinguishing equipment 1 only needs to emit the foam to a limited area, so that the bad odor is efficiently cut off while suppressing the consumption of water, the foaming agent and the gel. be able to. Further, the aiming control unit 63 may switch the radial shape as shown in FIG. 4 according to the specified generation position. For example, when a bad odor is detected in a region away from the installation position of the fire extinguishing device 3 in the dust pit 2, the aiming control unit 63 discharges bubbles in a rod shape, which is farther than in the case of spraying. It is possible to fly the bubbles to the position where the bad odor is generated.

As described above, in the first embodiment, the fire extinguishing equipment 1 emits bubbles into the dust pit 2 when a bad odor is generated in the dust pit 2 in the fire extinguishing equipment 1 in which the fire extinguishing device 3 is provided in the dust pit 2. It covers the dust that is a source of bad odor with bubbles.

As a result, the fire extinguishing equipment 1 can use the existing fire extinguishing device 3 and its circuit or the like to discharge bubbles into the dust pit 2 when a bad odor is generated. Since the surface of the dust that is a source of bad odor is covered with bubbles, the diffusion of bad odor can be suppressed while the bubbles maintain their shape, and the environment around the dust pit 2 and the dust pit 2 is improved.

Further, the fire extinguishing device 3 emits bubbles when at least one of a fire and a foul odor occurs in the garbage pit 2.

As a result, when a bad odor is generated, the fire extinguishing equipment 1 can generate and release bubbles by using the fire extinguishing device 3 for extinguishing the fire and its circuit or the like. Therefore, it is not necessary to newly provide a structure for suppressing the bad odor, and the bad odor can be cut off at low cost by controlling the emission of bubbles.

Further, the foam released when a bad odor is generated is generated by adding a substance having a high clay content to the foaming agent, and has a longer reduction time to return to the foam aqueous solution than the foam used for extinguishing a fire.

As a result, the fire extinguishing equipment 1 can generate foam having a longer reduction time than the foam agent for fire extinguishing by further adding a highly viscous substance such as gel when a bad odor is generated. Therefore, particularly when a bad odor is generated, it is desired to have bubbles that can be transferred to an incinerator and maintain the state until the incinerator of the dust, but the fire extinguishing equipment 1 can maintain the bad odor prevention effect for a long time by such bubbles.

Here, an efficient method for discharging bubbles to be discharged from the fire extinguishing device 3 will be described. Bubbles are lighter than water, so it is difficult to fly them far. Therefore, when the foam is discharged from the fire extinguishing device 3, the foam is discharged in the form of a spray to the address in the vicinity of the fire extinguishing device 3. Then, since the bubbles have fluidity, the bubbles run from the address near the fire extinguishing device to the dust surface and spread over the entire surface of the dust pit 2. Further, as described above, the height of the dust piled up by the street address is stored in the storage unit 66 as dust height information. When the entire surface of the dust in the dust pit 2 is covered with foam by using the fluidity of the foam, specify the address where the dust height is high and the address near the fire extinguishing device 3 is specified, and the foam is blown. It is desirable to release. In this case, when the bubbles are discharged toward the top portion of the dust piled up in a mountain shape, the bubbles flow downward from the top portion, and the entire surface of the dust in the dust pit 2 can be covered with the bubbles.

Embodiment 2.
FIG. 6 is a schematic configuration diagram of a garbage pit in which the fire extinguishing equipment according to the second embodiment of the present invention is installed. FIG. 7 is a schematic diagram showing the configuration of the foam generator according to the second embodiment of the present invention. Hereinafter, in the second embodiment, the description of the same configuration as that of the first embodiment will be omitted.

As shown in FIG. 6, in the second embodiment, the fire extinguishing equipment 101 includes a foam generating device 200 in addition to the fire extinguishing device 103, and the fire extinguishing device 103 discharges water when a fire occurs in the garbage pit 2. The foam generator 200 emits bubbles when a bad odor is emitted in the dust pit 2.

As shown in FIG. 7, the foam generator 200 includes a housing 211, a radiation nozzle 212 for radiating the foam aqueous solution B, a net 213, and the like. The foam aqueous solution B ejected from the radiation nozzle 212 foams by sucking in air A when colliding with the net 213. The bubble generator 200 may have any structure as long as it has a mechanism for generating bubbles. When the fire extinguishing equipment 101 adopts a dedicated machine as shown in FIG. 7, a large amount of bubbles can be generated, so that a wide range of dust can be covered with bubbles in the dust pit 2 at high speed.

The water in the water storage tank 44 is supplied to the fire extinguishing device 103 and the foam generator 200, respectively, via the water supply pump 43 and the like. The fire extinguishing device 103 is connected to the water supply pump 43 via the fifth pipe R101, and the fifth pipe R101 is provided with the first water supply valve 141. The foam generator 200 is connected to the water supply pump 43 via the sixth pipe R201, and the sixth pipe R201 is provided with a second water supply valve 241. Further, the fire extinguishing equipment 101 includes an addition circuit 5 as in the case of the first embodiment. In the second embodiment, the second pipe R2 of the addition circuit 5 is connected only to the sixth pipe R201, and the foam aqueous solution B is supplied to the foam generator 200.

Then, when a fire breaks out in the garbage pit 2, the fire extinguishing equipment 101 closes the second water supply valve 241 and the first valve 54 and the second valve 59 and opens the first water supply valve 141 to extinguish the fire. Water is discharged from the device 103 to extinguish the fire. Further, the fire extinguishing equipment 101 closes the first water supply valve 141 and opens the second water supply valve 241, the first valve 54, and the second valve 59 when a bad odor is generated in the garbage pit 2, thereby generating a bubble. Emit bubbles from 200. Here, as the foam generator 200, for example, a device called a high expansion foam fire extinguishing device having a foam expansion ratio of 500 times or more is used. By using foam having a high foaming ratio, it is possible to cover the surface of dust with foam in a short time for a region having a large protective area such as a dust pit.

As described above, also in the second embodiment, the fire extinguishing equipment 101 releases bubbles into the garbage pit 2 when a bad odor is generated in the garbage pit 2, and becomes a source of the bad odor, as in the case of the first embodiment. You can cover the dust with bubbles to stop the generation of bad odors. Further, the fire extinguishing equipment 101 uses a part of the water supply circuit 4 and the fire extinguishing device control unit 6 of the existing fire extinguishing device 103 by adding the foam generator 200 and the addition circuit 5, to prevent the generation of bad odor. be able to.

Further, in the second embodiment, the fire extinguishing equipment 101 further includes a foam generating device 200 for generating bubbles, the fire extinguishing device 103 discharges water when a fire occurs in the garbage pit 2, and the foam generating device 200 discharges water. , When a bad odor is generated in the dust pit 2, bubbles are emitted.

As a result, since the fire extinguishing device 101 is separated from the fire extinguishing device 103 and the foam generating device 200, the foam generating device 200 can be configured by a dedicated foam generating device to generate a large amount of bubbles at high speed. Therefore, the fire extinguishing equipment 101 can further suppress the diffusion of the bad odor by quickly covering a wide range of dust with bubbles when the bad odor is generated.

The embodiment of the present invention is not limited to the above embodiment, and various modifications can be made. For example, the case where the fire extinguishing equipments 1 and 101 are provided with the malodor detection device 12 has been described. However, a manual switch is provided in the operation unit 7 and the like, and when the manual switch is pressed, bubbles to which gel is added are released. It may be configured as follows. Further, since it is assumed that dust is constantly stored in the dust pit 2 and a bad odor is generated depending on the time, even if the bad odor detection device 12 is not particularly provided and bubbles are periodically discharged by timer control. good. Alternatively, since the possibility that a bad odor is naturally generated in the dust pit 2 as the amount of dust accumulated increases, bubbles are emitted when the height information of the dust in the dust pit 2 exceeds a predetermined value. May be good.

Further, when the fire extinguishing equipments 1 and 101 are equipped with two water cannons, it is preferable to configure both water cannons to emit bubbles. According to such a configuration, the fire extinguishing equipment 1 and 101 can reduce the area in the dust pit 2 where bubbles are difficult to be sprayed, and can increase the certainty of preventing the generation of bad odor.

Further, the configuration of the addition circuit 5 is not limited to the above. For example, the first valve 54 is arranged in the third pipe R3 instead of being provided in the second pipe R2, and the addition control unit 65 opens the first valve 54 and closes the second valve 59 in the event of a fire. When a foul odor is generated, the valve may be controlled so that the first valve 54 is opened and the second valve 59 is opened. In addition, although the gel added to the foaming agent was mixed with water, the mixture of the foaming agent and the gel was stored in the tank in advance, and the agent and water in the tank when a bad odor was generated. And may be mixed to produce foam.

1,101 Fire extinguishing equipment, 2 Garbage pit, 3,103 Fire extinguishing device, 4 Water supply circuit, 5 Addition circuit, 6 Fire extinguishing device control unit, 7 Operation unit, 7a operation panel, 11 Fire detection device, 12 Offensive odor detection device, 20 Crane control Unit, 21 Crane, 22 Crane operation room, 23 Operation panel, 31 Nozzle, 32 Nozzle body, 33 Outer cylinder, 34 Regulatory member, 35 Support plate, 36 motor, 38 Mixer, 39 Manual operation unit, 41 Water supply valve, 42 Pump motor, 43 water supply pump, 44 water storage tank, 51 1st tank, 54 1st valve, 56 2nd tank, 59 2nd valve, 61 main control unit, 62 timer, 63 aiming control unit, 64 water supply control unit, 65 Addition control unit, 66 storage unit, 71 operation mode selection unit, 72 address designation unit, 73 detection information display unit, 141 first water supply valve, 200 bubble generator, 211 housing, 212 radiation nozzle, 213 network, 241 second Water supply valve, A air, B foam aqueous solution, R1 first pipe, R2 second pipe, R3 third pipe, R4 fourth pipe, R101 fifth pipe, R201 sixth pipe.

Claims (3)

In a fire extinguishing facility provided with a fire extinguishing device in a trash pit, when a bad odor is generated in the trash pit, bubbles are discharged into the trash pit and the dust that is a source of the bad odor is covered with bubbles, and the bad odor is generated. The foam released at the time is generated by adding a highly viscous substance to the foam agent, and has a longer reduction time to return to the foam aqueous solution than the foam used for extinguishing a fire. In a fire extinguishing system equipped with a fire extinguishing device in the garbage pit
A bubble generator that discharges bubbles into the dust pit,
When a bad odor is generated in the trash pit, the bad odor is detected, and the bad odor detecting device provided in the trash pit and the bad odor are detected.
When the malodor detection device detects the generation of malodor in the dust pit, the foam generator is provided with a control unit that discharges the foam and controls the dust that is the source of the malodor to be covered with the foam .
The malodor detecting device does not detect only dust in the dust pit, but operates when there is an odor that is perceived as a malodor.
Fire extinguishing equipment. Equipped with an operation panel to display information
The operation panel is provided with a detection information display unit that displays the occurrence of a bad odor when the occurrence of a bad odor is detected by the bad odor detecting device .
When a fire is detected in the garbage pit, the detection information display unit displays the fire occurrence and the fire address.
The foam generator emits bubbles when at least one of a fire and a foul odor occurs in the dust pit.
The fire extinguishing equipment according to claim 2.

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