JP2011206395A - Sprinkling system for preventing fire spread in self-traveling parking lot - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a sprinkling system for preventing fire spread in a self-traveling parking lot, wherein fire spread is prevented using a small amount of water.SOLUTION: The sprinkling system 1 for preventing fire spread in a self-traveling parking lot 2 includes: a sprinkling head 50 which is installed on the ceiling of a vehicle path 20 between the parking sections 10 of the self-traveling parking lot 2 and capable of sprinkling to each of the parking section 10 which are adjacent across the vehicle path 20; a fire-extinguishing liquid supply part which supplies water or fire-extinguishing liquid to the sprinkling head 50; and a control board which when a fire breaks in a parking section 10, performs control to sprinkle the water or the fire-extinguishing liquid supplied by the fire-extinguishing liquid supply part from the sprinkling head 50 installed between a fire-breaking section being the parking section 10 where the fire has broken and a fire-break adjacent section being the parking section 10 adjacent to the fire-breaking section across the vehicle path 20, toward the fire-break adjacent section.

Description

  The present invention relates to a sprinkling system for preventing the spread of fire in a self-propelled parking lot in order to prevent the spread of fire due to a fire generated in the self-propelled parking lot.

  Conventionally, there has been proposed a fire prevention system for preventing a fire from occurring in a self-propelled parking lot from spreading from a fire generating space to another space.

  For example, Patent Literature 1 discloses a water curtain fire prevention facility that prevents the spread of fire due to a fire by using a water curtain formed by discharging water from a drain head in a curtain shape. This water curtain fire prevention equipment includes a drainer head, and this drainer head is arranged at a plurality of intervals on the ceiling of the building so that a double water curtain is formed. Further, a water collecting part for collecting and storing water discharged from the drainer heads is provided on the floor surface between these drainer heads.

  According to this water curtain fire prevention equipment, in the event of a fire, the fire is caused by the buffer space formed by being surrounded by the double water curtain formed by the drain head and the stored water stored in the water collecting section. The amount of radiant heat radiated from the generation space toward the buffer space can be reduced.

JP 2004-305380 A

  However, in such conventional water curtain fire prevention equipment, even if the radiant heat radiated from the fire occurrence space passes through the double water curtain and buffer space of the water curtain fire prevention equipment, it still has high thermal energy. In such a case, the radiant heat may cause a temperature increase of the vehicle parked in another space adjacent to the fire occurrence space, which may prevent the fire from spreading to the vehicle. In addition, since this water curtain fire prevention equipment requires a large amount of water in order to enhance the fire spread prevention effect, there is a problem that the cost of using the water curtain fire prevention equipment becomes large.

  In view of such a point, an object of the present invention is to provide a sprinkling system for preventing the spread of fire in a self-propelled parking lot, which can effectively prevent the spread of fire with a small amount of water.

  In order to solve the above-described problems and achieve the object, the sprinkling system for preventing the spread of fire in the self-propelled parking lot according to claim 1 is a sprinkling system for preventing the spread of fire in the self-propelled parking lot. A watering head installed on the ceiling of the roadway between the parking spaces of the self-propelled parking lot and capable of watering each of the adjacent parking spaces across the roadway, and water to the watering head. Or a supply means for supplying a fire-extinguishing liquid, and a fire section that is the parking section where a fire has occurred when a fire occurs in the parking section, and the parking section that is adjacent to the fire section with the roadway in between Control means for performing control for sprinkling water supplied by the supply means or the fire-extinguishing liquid from the watering head installed between the adjacent fire-exiting sections to the adjacent fire-exiting section.

  Further, the water spray system for preventing fire spread in the self-propelled parking lot according to claim 2 is the water sprinkling system for preventing fire spread in the self-propelled parking lot according to claim 1, wherein the water spray central axis of the sprinkler head is used. Then, the side of the side of the fire adjacent section of the fire adjacent section is directed to a position corresponding to a height that is approximately half of the vehicle limit height in the self-propelled parking lot.

  Further, the water spray system for preventing fire spread in the self-propelled parking lot according to claim 3 is the water spray system for preventing fire spread in the self-propelled parking lot according to claim 1 or 2, wherein the water spray head is A watering direction fixed type watering head capable of watering toward each of the adjacent parking spaces across the roadway, a fire detector installed in each of the parking spaces, and a watering head installed in each of the watering heads An open / close valve, and when the fire detector detects a fire, the control means specifies the fire section based on a location of the fire detector that has detected the fire, and the specified fire Water or fire extinguishing from the sprinkling head by opening the on-off valve installed on the sprinkling head installed between the section adjacent to the fire adjacent section across the roadway with respect to the fire section Liquid To water.

  Further, the water spray system for preventing fire spread in the self-propelled parking lot according to claim 4 is the water spray system for preventing fire spread in the self-propelled parking lot according to claim 1 or 2, wherein the water spray head is A watering direction movable watering head capable of watering toward each of adjacent parking sections across a roadway, a fire detector installed in each of the parking sections, and installed in each of the watering heads An open / close valve, and when the fire detector detects a fire, the control means identifies the fire compartment and the fire adjacent compartment based on the installation location of the fire detector that senses the fire. The watering head installed between the specified fire section and the adjacent fire section adjacent to the fire section across the roadway can be sprinkled toward the specified fire adjacent section. To be Causes moved, by opening the on-off valve installed in the water spray head which is the mobile, is sprinkled with water or extinguishing liquid from the water spray head.

  Further, the water spray system for preventing fire spread in the self-propelled parking lot according to claim 5 is the water spray system for preventing fire spread in the self-propelled parking lot according to claim 1 or 2, wherein the water spray head is A watering direction-fixing type watering head capable of watering toward each of adjacent parking sections across a roadway, from a fire detector installed in each of the parking sections and from the supply means to the watering head Piping provided for each parking section and for each parking section, and provided for each of the parking sections, common to all the watering heads installed on the ceilings of all the roadways adjacent to the parking section. An open / close valve disposed for each pipe, and when the fire is detected by the fire detector, the control means defines the fire compartment based on the installation location of the fire detector that has detected the fire. Identify and identify By opening the on-off valve disposed in the corresponding pipe to the fire compartment, thereby watering water or extinguishing liquid from the water spray head.

  According to the sprinkling system for preventing fire spread in the self-propelled parking lot according to claim 1, from the sprinkling head installed on the ceiling of the roadway between the fire section and the adjacent fire section to the adjacent fire section. Since the water or fire extinguishing liquid supplied by the supply means can be sprinkled, the temperature increase of the vehicle due to radiant heat can be suppressed by the water film formed on the surface of the vehicle parked in the fire adjacent area. It is possible to prevent the spread of fire to adjacent fires with a small amount of water. In particular, since fire spread prevention is performed for self-propelled parking lots, the range of areas to be prevented from spreading fire and the positional relationship with the fire source can be clearly identified, and the installation position and watering range of the watering head are effective. Can be determined.

  According to the water spray system for preventing fire spread in the self-propelled parking lot according to claim 2, the vehicle in the self-propelled parking lot is located on the side surface of the water discharge head adjacent to the fire compartment in the water discharge central axis. Because it was directed to a position corresponding to about half the height of the limit, the heat of flammable parts (for example, tires, bumpers, etc.) in vehicles parked in the fire adjacent area can be reduced intensively, The fire spread of the vehicle can be effectively prevented. In particular, since fire prevention is performed for cars parked in self-propelled parking lots, the range of areas that should be prevented from spreading fire and the positional relationship with the fire source can be clearly identified, and the watering range is effective. Can be determined.

  Further, according to the water spraying system for preventing fire spread in the self-propelled parking lot according to claim 3, the watering direction fixed type watering head capable of watering toward each of the adjacent parking sections across the roadway is provided. The fire compartment was identified based on the location of the fire detector that detected the fire, and was installed between the fire compartment that was adjacent to the fire compartment that was adjacent to the fire compartment with a roadway in between By opening the on-off valve installed in the watering head, water or fire extinguishing liquid is sprinkled from the watering head, so that the watering head can be moved so that water can be sprinkled toward each of the parking sections. Installation can be omitted, and the configuration of the watering system for preventing the spread of fire can be simplified.

  Further, according to the water spraying system for preventing fire spread in the self-propelled parking lot according to claim 4, the watering direction movable watering head capable of watering toward each of the adjacent parking sections across the roadway is provided. Based on the installation location of the fire detector that detected the fire, identify the fire compartment and the adjacent fire compartment, and between the specified fire compartment and the adjacent fire compartment adjacent to the fire compartment across the roadway The watering head installed in the water spray head is moved so that water can be sprayed toward the specified fire adjacent area, and the water or water is removed from the watering head by opening the on-off valve installed in the moved watering head. Since the fire-fighting liquid is sprinkled, a single sprinkling head can sprinkle multiple parking spaces, simplifying the configuration of the sprinkling system for preventing fire spread by reducing the number of sprinkling heads installed. It is possible.

  Further, according to the water spraying system for preventing fire spread in the self-propelled parking lot according to claim 5, a watering direction fixed type watering head capable of watering toward each of the adjacent parking sections across the roadway, A pipe extending from the supply means to the watering head, and provided for each parking section so as to be common to all the watering heads installed on the ceiling of all the roadways adjacent to the parking section, and the parking section An open / close valve arranged for each piping provided, and identifies the fire zone based on the installation location of the fire detector that sensed the fire, and the open / close valve arranged in the piping corresponding to the identified fire zone By opening the water, water or fire extinguishing liquid is sprinkled from the watering head, so that the number of on-off valves can be reduced compared to the case of installing on-off valves for each watering head, and a sprinkling system for preventing fire spread. Simpler configuration It can be. Moreover, since control of an on-off valve can be performed for every parking area, control of the sprinkling system for preventing fire spread can be simplified.

It is a top view of the predetermined | prescribed hierarchy of the self-propelled parking lot which applied the sprinkling system for fire spread prevention in the self-propelled parking lot which concerns on Embodiment 1, Comprising: The top view which shows the condition when a fire has occurred in this hierarchy It is. It is a principal part side view of FIG. It is a figure which shows the relationship between received heat amount and separation distance. It is a conceptual diagram which shows the structure of the watering system for fire spread prevention in the self-propelled parking lot which concerns on Embodiment 1. FIG. It is a block diagram of the watering system for fire spread prevention in the self-propelled parking lot concerning Embodiment 1. FIG. It is a schematic diagram which shows the watering direction of the watering head with respect to the fire adjacent area where various vehicles are parked, (a) is the watering direction of a wagon type passenger car, (b) is the watering direction of a normal passenger car, (c) is a light car. It is a figure which shows a watering direction. It is a figure which shows the structural example of a fire-out position table. It is a figure which shows the structural example of an on-off valve table. It is the flowchart which showed the flow of the process which the sprinkling system for fire spread prevention in the self-propelled parking lot which concerns on Embodiment 1 performs. It is a schematic diagram of the experimental installation used for a fire spread experiment, (a) shows a longitudinal cross-sectional view, (b) shows a cross-sectional view. In a self-propelled parking lot, it is a schematic diagram showing a fire situation when a fire occurs under a predetermined condition. It is a conceptual diagram which shows the structure of the sprinkling system for fire spread prevention in the self-propelled parking lot which concerns on Embodiment 2. FIG. It is the flowchart which showed the flow of the process which the sprinkling system for fire spread prevention in the self-propelled parking lot which concerns on Embodiment 2 performs. It is a conceptual diagram which shows the structure of the sprinkling system for fire spread prevention in the self-propelled parking lot which concerns on Embodiment 3. FIG. It is a figure which shows the structural example of an on-off valve table. It is the flowchart which showed the flow of the process which the sprinkling system for fire spread prevention in the self-propelled parking lot which concerns on Embodiment 3 performs. It is a conceptual diagram which shows the structure of the watering system for fire spread prevention in the self-propelled parking lot which concerns on Embodiment 4. FIG.

  With reference to the accompanying drawings, embodiments of a water spray system for preventing fire spread in a self-propelled parking lot according to the present invention will be described in detail below with reference to the drawings. First, [I] the basic concept common to each embodiment was explained, then [II] the specific contents of each embodiment were explained, and [III] finally, a modification to each embodiment was explained. To do. However, the present invention is not limited by these embodiments.

[I] Basic concept common to the embodiments First, the basic concept common to the embodiments will be described. The water spray system for preventing the spread of fire in the self-propelled parking lot according to each embodiment is for preventing the spread of fire due to a fire. Below, the case where it applies to a self-propelled parking lot is demonstrated as an example.

  Here, the self-propelled parking lot is provided with a parking section that is a space for parking a vehicle and a roadway that is a space provided for the vehicle to pass between the parking sections. . In the parking area, it is assumed that a fire is caused by a vehicle parked in the parking area. Therefore, in each embodiment, the parking area is divided into a fire area that is a parking area where a fire has occurred, and a parking area that is adjacent to the fire area and the roadway, and the distance from the fire area is increased. It is roughly divided into a fire adjacent zone that is within a predetermined distance where there is a possibility of occurrence of fire, and a fire non-adjacent zone that is a parking zone other than these fire zones and fire adjacent zones. In addition, the specific determination method of these fire adjacent area and fire non-adjacent area is mentioned later.

  One of the features of the sprinkling system for preventing the spread of fire in the self-propelled parking lot according to each embodiment is that the sprinkling head installed roughly on the ceiling of the roadway between the fire section and the fire adjacent section From this point, water or fire extinguishing liquid supplied by the supply means is sprinkled toward the fire adjacent section. Thereby, the water film formed on the surface of the vehicle parked in the adjacent fire zone can suppress the temperature rise of the vehicle due to radiant heat, and effectively prevent the spread of fire to the adjacent fire zone with a small amount of water Can do.

[II] Specific Contents of Each Embodiment Next, specific contents of each embodiment will be described.

[Embodiment 1]
First, the first embodiment will be described. This form is a form which waters using the watering head with which the watering direction was fixed.

(Constitution)
FIG. 1 is a plan view of a self-propelled parking lot 2 to which a sprinkling prevention system for preventing fire spread in the self-propelled parking lot according to the first embodiment is applied, and is a plan view showing a situation when a fire occurs. FIG. 2 is a side view of the main part of FIG. In the following description, the X direction in FIG. 1 is the horizontal direction and the Y direction is the vertical direction.

  As shown in FIG. 1, the self-propelled parking lot 2 is composed of a floor, a ceiling, and walls formed of reinforced concrete or the like. This self-propelled parking lot 2 is provided with a parking section 10 for parking the vehicle and a roadway 20 for the vehicle traffic. Specifically, between the first parking section 10a and the second parking section 10b, and the third parking section 10c and the fourth parking section 10d, the first roadway 20a is arranged along the Y direction. In addition, between the first parking section 10a and the fourth parking section 10d and between the second parking section 10b and the third parking section 10c, the second roadway 20b is arranged along the X direction. . Moreover, the 3rd roadway 20c is arrange | positioned along the X direction between the 1st parking area 10a and the 2nd parking area 10b, and the wall of the self-propelled parking lot 2, and 1st parking Between the section 10a and the fourth parking section 10d and the wall of the self-propelled parking lot 2, a fourth road 20d is disposed along the Y direction (the first parking sections 10a to 10d). Are collectively referred to as “parking section 10.” In the case where it is not necessary to distinguish between the first roadway 20a to the fourth roadway 20d, “roadway” 20 ”). The specific dimensions of the parking section 10 and the roadway 20 are arbitrary. For example, the parking section 10 and the roadway 20 are set based on a parking lot construction order, and the width of the roadway 20 is The height from the floor to the ceiling of the parking section 10 and the roadway 20 is set to 2.1 m or more (here, it is set to 5.6 m) (here, 4.0 m).

  Here, assuming that a fire has occurred in the fourth parking section 10d of the self-propelled parking lot 2, the fourth parking section 10d becomes a fire section. On the other hand, the fire adjacent zone and the fire non-adjacent zone can be specifically determined as follows. In other words, the fire adjacent section is conceptually the parking section 10 adjacent to the fire section with the roadway 20 interposed therebetween as described above, and the distance from the fire section may cause a fire spread. The parking section 10 is within a certain predetermined distance. For example, even if the fire adjacent zone is a parking zone 10 that is further sandwiched with another parking zone 10 in addition to the road 20 with respect to the fire zone, Including the section where the spread of fire may occur due to the narrow width, and conversely, even if the parking section 10 is arranged with only the roadway 20 sandwiched from the firebreaking section, the width of the roadway 20 is wide Therefore, sections where there is no possibility of fire spread are excluded.

FIG. 3 is a diagram showing the relationship between the amount of heat received and the separation distance, where the vertical axis represents the amount of heat received by the heat receiving object that receives heat from the fire source, and the horizontal axis represents the separation distance from the fire source. . As shown in FIG. 3, the amount of heat received corresponding to the separation distance tends to decrease as the separation distance increases. In general, it is said that if the heat receiving amount of the heat receiving object is 10 kW / m ² or less, the heat receiving object does not spread. Therefore, as shown in FIG. 3, when the separation distance is 7.9 m or less, the amount of heat received is 10 kW / m ² or more. Therefore, the parking section 10 within this separation distance may be spread. It can be said that it is 10. From these things, for example, the parking section 10 in the distance of 7.9 m or less with respect to the fire section is determined as the fire adjacent section. In Embodiment 1, since the separation distance between the fourth parking section 10d that is the fire section and the first parking section 10a or the third parking section 10c is 5.6 m, the first parking section 10a or the third parking section The parking section 10c is set as a fire non-adjacent section. On the other hand, the separation distance between the fourth parking section 10d, which is the fire section, and the second parking section 10b is 7.92 m (= the road width 5.6 m × √2 of the first road 20a). The 2 parking section 10b is a fire non-adjacent section.

  These fire zone, fire adjacent zone, and fire non-adjacent zone are determined in advance by the above method in a state where each parking zone 10 is assumed to be a fire zone, and are stored in the storage unit 75 described later.

(Configuration-Watering system for preventing fire spread in a self-propelled parking lot)
Next, the mechanical and electrical configuration of the water spray system 1 for preventing fire spread in a self-propelled parking lot will be described. FIG. 4 is a conceptual diagram illustrating a configuration of a sprinkling system 1 for preventing fire spread in the self-propelled parking lot according to the first embodiment. FIG. 5 is a block diagram of the sprinkling prevention water spray system 1 according to the first embodiment. As shown in FIGS. 4 and 5, the sprinkling system 1 for preventing fire spread includes a fire detector 30, a fire extinguishing liquid supply unit 40, a sprinkling head 50, an on-off valve 60, and a control panel 70. .

  The fire detector 30 is a fire detection means for detecting whether or not a fire has occurred in each parking section 10. The fire detector 30 is fixed to the ceiling of each parking section 10. Here, one fire detector 30 is provided at each of the center positions in the horizontal and vertical directions of the ceiling of each parking section 10 (in FIG. 4, fire detectors 30a to 30d are provided. The fire detectors 30a to 30d are collectively referred to as “fire detector 30” when it is not necessary to distinguish them from each other). The fire detector 30 transmits a detection signal to the control panel 70 in a wired or wireless manner when a fire is detected and a recovery signal when the fire is no longer detected after the fire is detected.

  The fire-extinguishing liquid supply unit 40 is supply means for supplying water or a fire-extinguishing liquid to the watering head 50. Although the specific kind of fire-extinguishing liquid is arbitrary, for example, a mixed liquid (foam aqueous solution) of water and a foam fire-extinguishing agent can be used. In the following description, it is assumed that water is used. The fire-extinguishing liquid supply unit 40 is provided inside or near the outside of the self-propelled parking lot 2 and includes a tank 41 and a pump 42. The tank 41 is a storage means for storing water. The pump 42 is a sending unit that sucks the water stored in the tank 41 and sends it out to the watering heads 50 via the pipes 43.

  The watering head 50 is watering means for watering the water sent from the tank 41 through the pipe 43 toward the parking section 10. The watering head 50 is fixed at a position corresponding to a substantially central position in the width direction of the roadway 20 on the ceiling of the roadway 20 between the parking sections 10 of the self-propelled parking lot 2. Specifically, the watering head 50a is the ceiling of the first roadway 20a between the first parking section 10a and the second parking section 10b, and the watering head 50b is the second parking section 10b and the third parking section 10c. The ceiling of the second lane 20b between each other and the watering head 50c are the ceiling of the first lane 20a between the third parking section 10c and the fourth parking section 10d, and the watering head 50d is the first parking section 10a. It is arrange | positioned for every predetermined space | interval on the ceiling of the 2nd roadway 20b between the 4th parking divisions 10d. (When these watering heads 50a-50d do not need to distinguish mutually, "watering head 50". In addition, the watering heads 50a1 to 50d2 of the third embodiment to be described later are collectively referred to as “watering heads 50” when they need not be distinguished from each other. The method for setting the intervals of the watering heads 50 is arbitrary. For example, the intervals of the watering heads 50 are set so that no gap is generated between the watering ranges.

  The watering head 50 is provided with two water spouts 51 at positions facing each of the parking sections 10 so that water can be sprayed toward each of the adjacent parking sections 10 across the roadway 20. Thereby, for example, the watering head 50a can spray water toward the first parking space 10a and the second parking space 10b, and the watering head 50b can spray water toward the second parking space 10b and the third parking space 10c. Can spray water toward the third parking section 10c and the fourth parking section 10d, and the watering head 50d can spray water toward the first parking section 10a and the fourth parking section 10d. In addition, although the specific structure of this water spout 51 is arbitrary, the water spout 51 is provided with the on-off valve 60, for example, this on-off valve 60 is controlled by the on-off valve control part 74d mentioned later, One of the two parking sections 10 capable of watering can be selected and watered. Moreover, the watering head 50 may be provided with a watering range adjusting unit that adjusts the watering range so that the watering range sprayed into the parking space 10 can be arbitrarily changed according to the size of the parking space 10 and the like. When using this watering range adjustment part, the watering range of the watering head 50 may be adjusted by control of the control part 74 of the control panel 70 mentioned later.

  The watering angle in the height direction of the watering head 50 is arbitrary, but the water discharge central axis of the watering head 50 is the side surface on the side of the parking section 10 adjacent to the roadway 20 where the watering head 50 is installed (at the time of fire) Is preferably directed to a position corresponding to a height approximately half of the vehicle limit height in the self-propelled parking lot 2 on the side of the fire-departing adjacent section. 6A and 6B are schematic views showing the watering direction of the watering head 50 with respect to the adjacent fire section where various vehicles are parked. FIG. 6A shows a state where water is sprayed to a wagon type passenger car, and FIG. (C) shows a state where water is sprayed on the light vehicle. Here, the “vehicle restricted height” means the vehicle height of a vehicle having the highest vehicle height among vehicles allowed to enter the self-propelled parking lot 2, for example, self-propelled The limit height displayed by a signboard or the like attached near the entrance ceiling of the parking lot 2 is applicable. In the first embodiment, the vehicle limit height is set to the height of the wagon type passenger car shown in FIG. 6A, which has the highest vehicle height among the vehicles shown in FIGS. Yes. Therefore, when water is sprayed onto the wagon type passenger car as shown in FIG. 6A, water is sprayed around the height of approximately half of the vehicle height of the wagon type passenger car.

  Here, by setting the watering range above the water discharge center axis to be approximately half the vehicle height of the wagon type passenger car, watering can be performed on the upper side of the height center of the wagon type passenger car, Water sprayed in this manner and falling along the side surface of the wagon type passenger car or water sprayed downward from the water discharge center axis can be sprinkled downward from the center of the height of the wagon type passenger car. Further, as shown in FIGS. 6B and 6C, it is clear that a water film that is at least similar to a wagon type passenger car can be formed for a vehicle having a vehicle height lower than that of a wagon type passenger car. For this reason, a water film can be formed over substantially the entire side surface of these various passenger cars, and a water film can be formed, concentrating the heat of flammable parts (for example, tires, bumpers, etc.) in the vehicle. Can be lowered.

  The on-off valve 60 in FIG. 4 is an opening / closing means for opening and closing the pipe 43 from the tank 41 to the watering head 50 based on a control signal from the control panel 70. The on-off valve 60 is provided in each watering head 50. Specifically, the on-off valve 60a is provided on the watering head 50a, the on-off valve 60b is provided on the watering head 50b, the on-off valve 60c is provided on the watering head 50c, and the on-off valve 60d is provided on the watering head 50d (the on-off valves 60a-60d are respectively provided). When there is no need to distinguish between them, they are collectively referred to as “open / close valve 60”). Although the specific kind of this on-off valve 60 is arbitrary, it is a direction control valve for selecting and watering either one of the two parking sections 10 in which each watering head can spray water. It is preferable. In the first embodiment, a three-way electromagnetic switching valve or the like is used so that such direction control can be performed and the watering head 50 can stop watering to each of the parking sections 10.

(Configuration-control panel)
The control panel 70 controls the operation of the sprinkling prevention water sprinkling system 1 in the self-propelled parking lot, and is provided inside or outside the self-propelled parking lot 2. The control panel 70 includes an input / output interface 71 (hereinafter referred to as an input / output IF), an input unit 72, an output unit 73, a control unit 74, and a storage unit 75 in terms of functional concept.

  The input / output IF 71 is a communication means for receiving a detection signal from the fire detector 30 and transmitting a control signal to the on-off valve 60, and is connected to each of these devices in a wired or wireless manner.

  The input unit 72 is an input unit for inputting arbitrary information to the control panel 70 and includes, for example, various switches (not shown).

  The output unit 73 is an output unit for outputting arbitrary information to the outside, and includes, for example, a monitor and an indicator (not shown).

  The control unit 74 is a control unit that controls each part of the control panel 70, and includes a fire position specifying unit 74a, an on-off valve specifying unit 74b, a watering direction specifying unit 74c, and an on-off valve control unit 74d in terms of functions and concepts. It is configured. The fire position specifying unit 74a is a fire position specifying means for specifying a fire start position based on fire position information stored in a fire position table 75a described later. The on-off valve specifying unit 74b specifies the on-off valve 60 arranged at a position corresponding to the fire-out position specified by the fire-up position specifying means based on on-off valve information stored in an on-off valve table 75b described later. It is a specific means. The watering direction specifying part 74c is a watering direction specifying means for specifying the watering direction of the on-off valve 60 specified by the on-off valve specifying part 74b based on the watering direction information stored in the on-off valve table 75b described later. . The on-off valve controller 74d is on-off valve control means for controlling the operation of the on-off valve 60. Specific control contents of these units will be described later.

  The specific configuration of the control unit 74 is arbitrary. For example, a control program such as an OS (Operating System), an embedded program that defines various processing procedures, an internal memory for storing required data, and these A CPU (Central Processing Unit) for executing the program is provided.

  The storage unit 75 is a storage unit that stores data necessary for various processes executed by the control unit 74. Specifically, the storage unit 75 records a fire position table 75a and an on-off valve table 75b.

  FIG. 7 is a diagram illustrating a configuration example of the fire position table 75a. The fire position table 75a is a table for managing information on the fire position when a fire occurs in the self-propelled parking lot 2. For example, the items "sensor number" and "fire position information" Corresponding information is associated with each other. The information corresponding to the item “sensor number” is sensor identification information for uniquely identifying each fire sensor 30 (“1” in FIG. 7). Note that the detector identification information “1” to “4” corresponds to the fire detectors 30a to 30d, respectively. Further, the information corresponding to the item “fire start position information” is information for specifying the fire start position of the fire (in FIG. 7, “first parking section” or the like).

  FIG. 8 is a diagram showing a configuration example of the on-off valve table 75b. The on-off valve table 75b is a table for managing information on the on-off valve 60 arranged corresponding to the fire-out position. For example, the items of "fire-out position information", "on-off valve information", and "watering direction information" Information corresponding to each item is associated with each other. The information stored corresponding to the item “fire position information” is the same as the information corresponding to the same item in the fire position table 75a. Further, the information corresponding to the item “open / close valve information” is information for uniquely identifying each open / close valve 60 (“a” and the like in FIG. 8). The on-off valve information “a” to “d” corresponds to the on-off valves 60a to 60d, respectively. The information corresponding to the item “sprinkling direction information” is information for specifying the watering direction of each watering head 50 (in FIG. 8, “direction on the second parking section side” or the like).

  The specific configuration of the storage unit 75 is arbitrary. For example, the storage unit 75 can be configured using a storage unit such as a ROM (Read Only Memory) or an EEPROM (Erasable Programmable ROM) that stores various data.

(processing)
Next, processing of the sprinkling system 1 for preventing fire spread in the self-propelled parking lot according to Embodiment 1 will be described. FIG. 9 is a flowchart of processing executed by the sprinkling prevention water spray system 1 according to the first embodiment. This process includes an alarm process (process of SA1 to SA5) that is performed when the fire detector 30 detects an abnormality, and a recovery process (process of SA6 to SA10) that is performed when the fire sensor 30 no longer detects an abnormality. It is roughly divided into The processing is performed by the control unit 74 of the control panel 70 except for the subject to be specially described.

(Processing-Alarm processing)
First, alarm processing will be described. First, the control unit 74 of the control panel 70 monitors whether or not a detection signal is output from the fire detector 30 (SA1). Here, when a detection signal is output from the fire detector 30 (SA1, Yes), the fire position specifying unit 74a refers to the fire position table 75a and fires based on the sensor number included in the detection signal. The position information is acquired (SA2). For example, when a detection signal is output from the fire detector 30d provided on the ceiling of the fourth parking section 10d, the fire position specifying unit 74a sets the fire position information corresponding to the sensor number = 4 included in the detection signal. = Acquire the fourth parking section. It should be noted that the detection signal output from the fire detector 30 is continuously output while the fire detector 30 detects an abnormality (hereinafter referred to as SB1 of Embodiment 2 described later, and to be described later). The same applies to the sensing signal of SC1 in the third embodiment).

  Next, the on-off valve specifying unit 74b refers to the on-off valve table 75b, and acquires on-off valve information based on the fire position information acquired in SA2 (SA3). For example, the on-off valve specifying unit 74b acquires on-off valve information = c, d as the on-off valve information corresponding to the fire position information = the fourth parking section.

  Next, the watering direction specifying unit 74c refers to the on-off valve table 75b and acquires watering direction information based on the on-off valve information acquired at SA3 (SA4). For example, the opening / closing valve specifying unit 74b acquires the watering direction information = the direction of the third parking section as the watering direction information corresponding to the opening / closing valve information = c, and the watering direction information corresponding to the opening / closing valve information = d. , Sprinkling direction information = Get the direction of the first parking section side.

  Subsequently, the on-off valve controller 74d opens the on-off valve 60 based on the on-off valve information acquired at SA3 and the watering direction information acquired at SA4 (SA5). For example, the on-off valve controller 74d opens the on-off valve 60c so that the watering head 50c sprinkles toward the third parking section 10c. At the same time, the on-off valve controller 74d opens the on-off valve 60d so that the watering head 50d sprinkles toward the first parking section 10a. Thereby, as shown in FIG. 1, water is sprayed from the water spout 51 of the water spray head 50c toward the third parking section 10c, and water is sprayed from the water spout 51 of the water spray head 50d toward the first parking section 10a. Done.

(Processing-Recovery processing)
Next, the recovery process will be described. After the process of SA5, the control unit 74 of the control panel 70 monitors whether or not a recovery signal is output from the fire detector 30 (SA6). Here, when the recovery signal is output from the fire detector 30 (SA6, Yes), the fire position specifying unit 74a refers to the fire position table 75a and fires based on the sensor number included in the recovery signal. The position information is acquired (SA7). For example, when the restoration signal is output from the fire detector 30d provided on the ceiling of the fourth parking section 10d (SA6, Yes), the fire position specifying unit 74a corresponds to the sensor number = 4 included in the restoration signal. Get fire location information = 4th parking lot. The recovery signal output from the fire detector 30 is continuously output for a predetermined time after the fire detector 30 no longer detects an abnormality (hereinafter referred to as SB7 in Embodiment 2 described later, and to be described later). The same applies to the recovery signal of SC5 of the third embodiment).

  Next, the on-off valve specifying unit 74b refers to the on-off valve table 75b, and acquires on-off valve information based on the fire position information acquired at SA7 (SA8). For example, the on-off valve specifying unit 74b acquires on-off valve information = c, d as the on-off valve information corresponding to the fire position information = the fourth parking section.

  Next, the watering direction specifying unit 74c refers to the on-off valve table 75b, and acquires watering direction information based on the on-off valve information acquired at SA8 (SA9). For example, the opening / closing valve specifying unit 74b acquires the watering direction information = the direction of the third parking section as the watering direction information corresponding to the opening / closing valve information = c, and the watering direction information corresponding to the opening / closing valve information = d. , Sprinkling direction information = Get the direction of the first parking section side.

  Subsequently, the on-off valve controller 74d closes the on-off valve 60 based on the on-off valve information acquired at SA8 and the watering direction information acquired at SA9 (SA10). Specifically, the on-off valve controller 74d closes the on-off valve 60c so that the watering head 50c stops watering to the third parking section 10c. At the same time, the on-off valve controller 74d closes the on-off valve 60d so that the watering head 50d stops watering to the first parking section 10a. Thereby, watering from the sprinkling port 51 on the third parking section 10c side in the watering head 50c stops, and watering from the watering port 51 on the first parking section 10a side in the watering head 50d stops. Thereafter, the process returns to SA1.

(Experimental result)
Next, the experimental result using the sprinkling system 1 for preventing fire spread in a self-propelled parking lot will be described. First, an outline of the fire spread experiment (hereinafter, experiment A) will be described. FIG. 10 is a schematic diagram of experimental equipment used in Experiment A, where (a) shows a longitudinal sectional view and (b) shows a transverse sectional view. As shown in FIG. 10, this experimental equipment 80 is provided with a ceramic fiber board (hereinafter referred to as a CF board) 81, a burner 82, a heat receiving plate 83, and a watering head 84.

  The CF board 81 is used to reproduce the virtual flame surface of the fire zone at the time of a fire. This CF board 81 is a substantially rectangular plate-like body (the shape of the CF board 81: height 2.7 m × width 0.9 m), is formed of a carbon fiber material or the like, and is erected on the ground surface. ing.

  The burner 82 is for heating the CF board 81 using gas or liquid fuel. The burner 82 is a box-like body formed in a substantially box shape (the shape of the burner 82: width 0.5 m × depth 0.5 m × height 0.3 m), and the side surface of the CF board 81 on the heat receiving plate 83 side. It is provided in the vicinity.

  The heat receiving plate 83 is for receiving radiant heat radiated from the CF board 81. The heat receiving plate 83 is a substantially rectangular plate-like body (the shape of the heat receiving plate 83: height 1 m × width 0.3 m × thickness 0.006 m), and is formed of a metal material such as an iron material. The heat receiving plate 83 is erected on the ground surface with a predetermined distance from the CF board 81, and is fixed at a position where the side surfaces of the CF board 81 and the heat receiving plate 83 face each other. A plurality of heat flow meters 85 for measuring the surface temperature of the heat receiving plate 83 are provided on the side surface of the heat receiving plate 83 facing the CF board 81.

  The watering head 84 is for watering the heat receiving plate 83. The water spray head 84 is provided between the CF board 81 and the heat receiving plate 83 and is disposed at a position higher than the heat receiving plate 83 so that water can be sprayed obliquely from above the heat receiving plate 83. .

Next, the experimental method of Experiment A will be described. First, the CF board 81 is heated by the burner 82. In this experiment A, referring to the data of the heat flow meter 85 provided on the heat receiving plate 83, until the amount of heat received by the heat receiving plate 83 that receives the radiant heat radiated from the CF board 81 becomes about 8.0 kW / m ² , The CF board 81 is heated by the burner 82. Next, after the amount of heat received by the heat receiving plate 83 that receives the radiant heat radiated from the CF board 81 reaches about 8.0 kW / m ² , the heat receiving plate 83 is maintained while maintaining the amount of gas burned by the burner 82. Water is sprayed to the side surface on the CF board 81 side by the watering head 84 (in this experiment A, watering of 1.2 L / (min · m ² ) (= 0.02 kg / (s · m ² )) is performed) . Then, watering is performed by the watering head 84 until the surface temperature of the side surface of the heat receiving plate 83 on the CF board 81 side is stabilized, and then the operation of the burner 82 and the watering head 84 is stopped, and the experiment A is completed.

Next, the experimental results of Experiment A will be described. As a result of Experiment A, the surface temperature of the side surface on the CF board 81 side of the heat receiving plate 83 after the experiment could be suppressed to about 70 ° C. Further, from the result of this experiment A, assuming that the radiant heat incident on the surface of the heat receiving plate 83 was used for water temperature rise and water evaporation, the amount of heat used for water temperature rise is the amount of water spray ( = 0.02 kg / (s · m ² )) specific heat of water (= 4.2 kJ / (kgK)) and temperature rise (= (surface temperature of heat receiving plate 83 after experiment) − (heat receiving plate 83 before experiment) Of surface temperature) = 70 ° C.−25 ° C. = 45 ° C.), the amount of heat used to increase the temperature of water = (amount of water spray) × (specific heat of water) × (temperature increase of the heat receiving plate 83) = 0 It was found to be 0.02 × 4.2 × 45 = 3.78 kW / m ² . Of the amount of heat used to increase the temperature of the water, the amount of heat used to evaporate the water subtracts the amount of heat used to increase the temperature of the water from the amount of heat received by the heat receiving plate 83 due to the radiant heat from the CF board 81. Thus, the amount of heat used for water evaporation = (the amount of heat received by the heat receiving plate 83 due to the radiant heat from the CF board 81) − (the amount of heat used for increasing the temperature of the water) = 8.0 kW / m ² −3. 78kW ^{/ m} 2 = 4.22kW ^/ m was found to be ^2. Further, the amount of water evaporated is obtained by dividing the amount of heat used for water evaporation by the water latent heat of evaporation (= 2200 kJ / kg). The amount of water evaporated = water latent heat of heat / the amount of heat received by the remaining radiant heat = 4. .22 / 2200 = about 0.002 kg / (s · m ² ). In addition, it turned out that the evaporation amount of this water corresponds to 10% of the amount of water sprayed from the water spray head 84 during the experiment. If all of the water sprayed is used to suppress the temperature rise of the heat receiving plate, the temperature of 70 ° C. water can rise to 100 ° C., so 0.02 × 4.2 × 30 = 2.52 kW / m ² become (if it is possible to uniformly sprinkle the heat receiving surface, assuming sprinkling water is used for the suppression of all the temperature rise (temperature rise from 20 ° C. to 100 ° C. due to latent heat of evaporation)). Furthermore, since only 10% of the water sprayed as described above is evaporated, if the remaining 90% is evaporated, 0.02 × 0.9 × 2200 = 39.6 kW / m ² is obtained. When 39.6 kW / m ² is added to 2.52, it becomes 42.12 kW / m ² , and theoretically, it has the effect of preventing the spread of fire up to a heat flux of 42.12 + 8.0≈50 kW / m ^{2 in} the amount of watering during the experiment Conceivable.

  Next, a comparison between the result of Experiment A and the theoretical value will be described. FIG. 11 is a schematic diagram showing a fire situation when a fire occurs under a predetermined condition in the self-propelled parking lot 2. As shown in FIG. 11, in the self-propelled parking lot 2 where the width of the roadway 20 is 4.0 m and the height from the floor to the ceiling is 4.0 m, there are two parking sections 10 where vehicles are parked. The roadway 20 is provided between the parking sections 10.

  In this self-propelled parking lot 2, when a fire breaks out in one of the two parking compartments 10 (in FIG. 11, the left parking compartment 10 catches fire. The parking section 10 is referred to as a fire section, and the other parking section 10 is referred to as a fire adjacent section). It is assumed that there is a virtual flame surface on the side of the road 20 in the fire section, and the road in the fire adjacent section. It is assumed that there is a virtual heat receiving surface on the side surface on the 20 side. The temperature of the virtual flame surface at this time shall be 800 degreeC. Under such conditions, for example, when the form factor is F, the σ (Steffan = Boltzmann) constant is σ, and the absolute temperature is T, the heat flux q incident from the virtual flame surface toward the virtual heat receiving surface is Calculated by (1).

Specifically, as information corresponding to the fire zone, the form factor F = 0.45, the σ constant = 5.67 × 10 ⁻⁸ W / (m ² · K ⁴ ), the temperature of the virtual flame surface = 800 ° C. Therefore, the heat flux is calculated as q = 0.45 × 5.67 × 10 ⁻¹¹ × (800 + 273) ⁴ = about 34 kW / m ² .

  On the other hand, if the virtual heat-receiving surface is in a wet state, the surface temperature of the virtual heat-receiving surface is 100 ° C. or lower, so that no fire spread occurs in the fire adjacent section. Therefore, in order to keep this virtual heat receiving surface in a wet state, the energy required for evaporating the water on the surface must be larger than the energy incident on the surface. For example, assuming that the amount of water sprayed per unit surface area is W and the latent heat of vaporization of water is Lv, the condition for keeping the virtual heat receiving surface in a wet state is expressed by equation (2).

Specifically, as the information corresponding to the fire section and the information corresponding to the fire adjacent section, the heat flux calculated by Equation (1) = 34 kW / m ² and the latent heat of water evaporation = 2.2 kJ / g. Therefore, the amount of water spray required per unit surface area is calculated as W = 34 / 2.2 = about 15.5 g / (s · m ² ) (= about 0.93 L / (min · m ² )). Further, when the height of the virtual heat receiving surface is 4 m, the necessary water amount per unit width is calculated as necessary water amount per unit width = 0.93 × 4 = about 3.72 L / (min · m). The

Here, as described above, the incident energy calculated by the equation (1) is 34 kW / m ² , whereas as described above, the spread of water is prevented to a heat flux of 50 kW / m ² with the water spray amount of Experiment A. Since it is considered to be effective, it was confirmed that the fire spread could be prevented by the amount of water in Experiment A even when a fire of the scale assumed in this calculation occurred.

  Next, a comparison between the result of Experiment A and the result of a conventional fire prevention system experiment (hereinafter, Experiment B) will be described. Non-patent literature (Hideki Mizuochi et al., "Experiment on Flame-shielding Performance of Water Curtains by Drainer Equipment", Architectural Institute of Japan Academic Lecture, Architectural Institute of Japan, 2006) It is shown that the experiment (namely, experiment B) which confirms heat-shielding property using the installation was performed. This non-patent literature experimental facility 80 has a head (a drainer head of patent literature 1) at the upper end of a 2.5 m wide × 1.5 m long opening of a heating furnace (fire generation space of patent literature 1). Are provided. And 60-70 L / min of water is discharged from each head.

  As a result of Experiment B, the temperature of the space adjacent to the water curtain formed by water discharge and on the side opposite to the space on the heating path side could be suppressed to 82 ° C. Moreover, the amount of water per unit width used in this experiment B was 60 × 3 / 2.5 = 72 L / (min · m).

  Here, the amount of water per unit width of this experiment B (= 72 L / (min · m)) and the required amount of water per unit width calculated based on the equation (2) (= 3.72 L / (min · m) )) In consideration of the scale of the fire, the amount of water per unit width in Experiment B is much larger than the required amount of water per unit width calculated based on Equation (2). all right. Further, since the amount of water sprayed per unit surface area calculated by the equation (2) is substantially equal to the water spray amount used in Experiment A, the amount of water per unit width in Experiment B is set to Experiment A. It can be said that it is much more than the required amount of water per unit width. From the above, it was found that the sprinkling system 1 for preventing fire spread can obtain the same fire spread effect with a small amount of water compared to the conventional water curtain fire prevention equipment.

(Effect of Embodiment 1)
As described above, according to the first embodiment, the water supply head 40 for fire extinguishing is directed from the water spray head 50 installed on the ceiling of the roadway 20 between the fire section and the fire adjacent section to the fire adjacent section. Since the supplied water can be sprinkled, the water film formed on the surface of the vehicle parked in the adjacent fire area can suppress the temperature rise of the vehicle due to radiant heat, and the water volume can be reduced to the adjacent fire area. Can be prevented. In particular, since the spread of fire is prevented for the self-propelled parking lot 2, the range of the area to be prevented from spreading and the positional relationship with the fire source can be clearly specified, and the installation position and the watering range of the watering head 50 can be determined. Can be determined effectively.

  In addition, since the water discharge center axis of the water spray head 50 is directed to a position corresponding to the height of approximately half of the vehicle limit height in the self-propelled parking lot 2 on the side face of the fire adjacent section of the fire adjacent section, The heat of flammable parts (for example, tires, bumpers, etc.) in a vehicle parked in the compartment can be reduced intensively, and the spread of the vehicle can be effectively prevented. In particular, since fire prevention is performed for vehicles parked in the self-propelled parking lot 2, the range of areas to be prevented from spreading fire and the positional relationship with the fire source can be clearly identified, and the watering range is effective. Can be determined.

  In addition, it has a watering direction fixed watering head 50 that can spray water to each of the adjacent parking spaces 10 across the roadway 20, and identifies the fire zone based on the installation location of the fire detector 30 that detects a fire. Then, by opening the on-off valve 60 installed in the watering head 50 installed in the roadway 20 adjacent to the specified fire section, water is sprinkled from the water spray head 50, so that each of the fire adjacent sections is directed. Installation of a moving mechanism or the like for moving the watering head 50 can be omitted so that watering can be performed, and the configuration of the watering system 1 for preventing fire spread can be simplified.

[Embodiment 2]
Next, a second embodiment will be described. This form is a form which waters using the watering head from which a watering direction is changed. The configuration of the second embodiment is substantially the same as the configuration of the first embodiment except where otherwise specified, and the same configuration as that of the first embodiment is used in the first embodiment. The same reference numerals and / or names are attached as necessary, and the description thereof is omitted.

(Constitution)
The sprinkling system 1 for preventing fire spread in the self-propelled parking lot according to the second embodiment can be configured in substantially the same manner as the sprinkling system 1 for preventing fire spread in the self-propelled parking lot according to the first embodiment. 50 and the configuration of the on-off valve 60 are different. Therefore, this different configuration will be described below.

  FIG. 12 is a conceptual diagram illustrating a configuration of a sprinkling system 1 for preventing fire spread in a self-propelled parking lot according to the second embodiment. As shown in FIG. 12, the watering head 50 is provided with a single watering port 51 and a moving unit (not shown) that can move the watering head 50 in a predetermined direction. For example, by controlling the moving unit (not shown) by the on-off valve control unit 74d, the water spout 51 can be directed to one of the two parking sections that can be sprinkled. Thus, the watering head 50a can spray water toward the first parking section 10a or the second parking section 10b, the watering head 50b can spray water toward the second parking section 10b or the third parking section 10c, and the watering head 50c Water can be sprayed toward the third parking section 10c or the fourth parking section 10d, and the watering head 50d can be sprayed toward the first parking section 10a or the fourth parking section 10d.

  The open / close valve 60 is provided in each of the watering heads 50 as in the first embodiment. Although the specific kind of this on-off valve 60 is arbitrary, in Embodiment 2, the watering head 50 can spray water to each of the parking sections 10, and can stop watering to each of the parking sections 10. Thus, a two-way electromagnetic switching valve or the like is used.

(processing)
Next, the process of the sprinkling system 1 for preventing fire spread in the self-propelled parking lot according to the second embodiment will be described. This process is broadly divided into an alarm process that is partially different from the first embodiment and a recovery process that is partially different from the first embodiment. FIG. 13 is a flowchart showing a flow of processing executed by the sprinkling system 1 for preventing fire spread in the self-propelled parking lot according to the second embodiment. However, since SB1 to SB4 and SB7 to SB9 in this sprinkling prevention sprinkling system 1 are the same as SA1 to SA4 and SA6 to SA8 in the processing of the first embodiment shown in FIG. .

(Processing-Alarm processing)
After the process of SB4, the on-off valve controller 74d controls the direction of the watering head 50 based on the watering direction information acquired in SB4 (SB5). Specifically, the on-off valve control unit 74d controls the direction of the watering head 50c by a moving unit (not shown) so that the watering port 51 of the watering head 50c faces the third parking section 10c, and the watering head 50d The direction of the watering head 50d is controlled by a moving unit (not shown) so that the watering port 51 faces the first parking section 10a.

  Subsequently, the on-off valve control unit 74d opens the on-off valve 60 based on the on-off valve information acquired in SB3 (SB6). Specifically, the on-off valve controller 74d opens the on-off valve 60c so that the watering head 50c sprinkles toward the third parking section 10c, and the watering head 50d sprinkles toward the first parking section 10a. Thus, the on-off valve 60d is opened. Thereby, water is sprayed from the water spray port 51 of the water spray head 50c toward the third parking section 10c, and water is sprayed from the water spray port 51 of the water spray head 50d toward the first parking section 10a.

(Processing-Recovery processing)
After the process of SB9, the on-off valve controller 74d closes the on-off valve 60 based on the on-off valve information acquired at SB9 (SB10). Specifically, the on-off valve controller 74d closes the on-off valve 60c so that the watering head 50c stops watering to the third parking section 10c, and the watering head 50d sprays water to the first parking section 10a. The on-off valve 60d is closed so as to stop the operation. Thereafter, the process proceeds to SB1.

(Effect of Embodiment 2)
As described above, according to the second embodiment, the water spraying direction movable watering head 50 that can spray water toward each of the adjacent parking sections 10 across the roadway 20 is provided. While identifying the fire zone based on the installation location, and moving the watering head 50 installed in the roadway 20 adjacent to the identified fire zone so that watering toward the identified fire adjacent zone is possible By opening the on-off valve 60 installed in the moved watering head 50, water is sprinkled from the watering head 50, so that the watering head 50 can spray water into the plurality of parking sections 10, and the watering head 50 For example, by reducing the number of installations, it is possible to simplify the configuration of the sprinkling system 1 for preventing fire spread.

[Embodiment 3]
Next, Embodiment 3 will be described. This form is a form in which the on-off valve is arranged for each pipe provided for each parking section. The configuration of the third embodiment is substantially the same as the configuration of the first embodiment unless otherwise specified, and the same configuration as that of the first embodiment is used in the first embodiment. The same reference numerals and / or names are attached as necessary, and the description thereof is omitted.

(Constitution)
The sprinkling system 1 for preventing fire spread in the self-propelled parking lot according to the third embodiment can be configured in substantially the same manner as the sprinkling system 1 for preventing fire spread in the self-propelled parking lot according to the first embodiment. 50 and the configuration of the on-off valve 160 are different. Therefore, this different configuration will be described below.

  FIG. 14 is a conceptual diagram illustrating a configuration of a sprinkling system 1 for preventing fire spread in a self-propelled parking lot according to Embodiment 3. As shown in FIG. 14, the watering head 50 is a fixed watering head 50 as in the first embodiment. The watering head 50 is provided on the ceiling of the roadway 20 between the parking sections 10 and is fixed at a position corresponding to the center in the width direction of the roadway 20. Specifically, the watering heads 50a1 and 50a2 are the ceiling of the first roadway 20a between the first parking section 10a and the second parking section 10b, and the watering heads 50b1 and 50b2 are the third parking section 10b and the third parking section. The ceiling of the second road 20b between the parking sections 10c and the watering heads 50c1 and 50c2 are the ceiling of the first road 20a and the watering heads 50d1 and 50b2 between the third parking section 10c and the fourth parking section 10d. Are arranged at predetermined intervals on the ceiling of the second road 20b between the first parking section 10a and the fourth parking section 10d.

  The watering head 50 is provided with a single watering port 51 at a position facing the parking section 10 so that water can be sprayed to one of the parking sections 10 adjacent to each other across the roadway 20. Yes. Thereby, for example, the watering head 50a1 can spray water toward the second parking section 10b, and the watering head 50a2 can spray water toward the first parking section 10a. The watering head 50b1 can spray water toward the third parking section 10c, and the watering head 50b2 can spray water toward the second parking section 10b. The watering head 50c1 can spray water toward the fourth parking section 10d, and the watering head 50c2 can spray water toward the third parking section 10c. The watering head 50d1 can spray water toward the first parking section 10a, and the watering head 50d2 can spray water toward the fourth parking section 10d.

  Moreover, the on-off valve 160 is arrange | positioned for every piping 43 arrange | positioned so that the circumference | surroundings for every parking area 10 may be enclosed. For example, the on-off valve 160A is arranged in the pipe 43 surrounding the first parking section 10a, the on-off valve 160B is arranged in the pipe 43 surrounding the second parking section 10b, and the on-off valve 160C surrounds the third parking section 10c. The on-off valve 160D is arranged in the pipe 43, and is arranged in the pipe 43 surrounding the fourth parking section 10d. Thereby, for example, by opening the on-off valve 160A, watering is performed from the watering head 50a1 and the watering head 50d2. Moreover, watering is performed from the watering head 50a2 and the watering head 50b1 by opening the on-off valve 160B. Moreover, watering is performed from the watering head 50b2 and the watering head 50c1 by opening the on-off valve 160C. Moreover, watering is performed from the watering head 50c2 and the watering head 50d1 by opening the on-off valve 160D.

  Although the specific kind of this on-off valve 160 is arbitrary, in Embodiment 3, the watering head 50 can spray water to each of the parking sections 10, and can stop watering to each of the parking sections 10. Thus, a one-way electromagnetic switching valve or the like is used.

  FIG. 15 is a diagram illustrating a configuration example of the on-off valve table 75b. The on-off valve table 75b recorded in the storage unit 75 is configured, for example, by associating items “fire position information” and “open / close valve information” with information corresponding to each item. The information stored corresponding to the item “fire position information” is the same as the information corresponding to the same item in the fire position table 75a. Information corresponding to the item “open / close valve information” is information for uniquely identifying each open / close valve 160 (“A” in FIG. 15). Note that the opening / closing valve information “A” to “D” and the opening / closing valves 160A to 160D correspond to A to D in this order.

(processing)
Next, processing of the sprinkling system 1 for preventing fire spread in the self-propelled parking lot according to Embodiment 3 will be described. This process is broadly divided into an alarm process that is partially different from the first embodiment and a recovery process that is partially different from the first embodiment. FIG. 16 is a flowchart showing the flow of processing executed by the sprinkling prevention water spray system 1 according to the third embodiment. However, SC1 to SC3 and SC5 to SC7 in this sprinkling prevention sprinkling system 1 are the same as SA1 to SA3 and SA6 to SA8 of the processing of Embodiment 1 shown in FIG. .

(Processing-Alarm processing)
After the processing of SC2, the on-off valve specifying unit 74b refers to the on-off valve table 75b and acquires the on-off valve information based on the fire position information acquired at SC2 (SC3). Specifically, the opening / closing valve specifying unit 74b acquires the opening / closing valve information = D as the opening / closing valve information corresponding to the fire position information = the fourth parking section.

  Subsequently, the on-off valve controller 74d opens the on-off valve 160 based on the on-off valve information acquired at SC3 (SC4). Specifically, the on-off valve control unit 74d opens the on-off valve 160D so that the watering head 50c2 sprays water toward the third parking section 10c and the watering head 50d2 sprays water toward the first parking section 10a. Let Thereby, watering is performed from the water spout 51 of the watering head 50c2 toward the third parking section 10c, and watering is performed from the water spout 51 of the watering head 50d1 toward the first parking section 10a.

(Processing-Recovery processing)
After the process of SC6, the on-off valve specifying unit 74b refers to the on-off valve table 75b, and acquires the on-off valve information based on the fire position information acquired at SC6 (SC7). Specifically, the opening / closing valve specifying unit 74b acquires the opening / closing valve information = D as the opening / closing valve information corresponding to the fire position information = the fourth parking section.

  Subsequently, the on-off valve controller 74d closes the on-off valve 160 based on the on-off valve information acquired at SC7 (SC8). Specifically, the on-off valve controller 74d opens and closes the on-off valve 160D so that the watering head 50c2 stops watering to the third parking section 10c, and the watering head 50d2 stops watering to the first parking section 10a. To close. Thereby, watering from the watering port 51 of the watering head 50c2 stops, and watering from the watering port 51 of the watering head 50d1 stops. Thereafter, the process proceeds to SC1.

(Effect of Embodiment 3)
As described above, according to the third embodiment, the watering direction fixed type watering head 50 capable of watering toward each of the adjacent parking sections 10 across the roadway 20, and the water spraying head 50 from the fire extinguishing liquid supply unit 40. A pipe 43 that is common to all watering heads 50 installed on the ceilings of all the roadways 20 adjacent to the parking section 10, An open / close valve 160 arranged for each pipe 43 provided for each section 10, identifies a fire section based on the installation location of the fire detector 30 that senses a fire, and pipes 43 corresponding to the identified fire section Since the water is sprayed from the watering head 50 by opening the on-off valve 160 disposed in the position, the number of the on-off valves 160 can be reduced as compared with the case where the on-off valve 160 is installed for each watering head 50. It can be further simplify the configuration of the watering system 1 for fire prevention. Moreover, since the control of the on-off valve 160 can be performed for each parking section 10, the control of the sprinkling system 1 for preventing the spread of fire can be simplified.

[Embodiment 4]
Next, a fourth embodiment will be described. This form is a form in which each watering head autonomously waters. The configuration of the fourth embodiment is substantially the same as the configuration of the first embodiment unless otherwise specified, and the same configuration as that of the first embodiment is used in the first embodiment. The same reference numerals and / or names are attached as necessary, and the description thereof is omitted.

(Constitution)
The sprinkling prevention system 1 in the self-propelled parking lot according to the fourth embodiment is different from the sprinkling prevention system 1 in the self-propelled parking lot according to the first embodiment. The valve 60 and the control panel 70 are excluded. FIG. 17 is a conceptual diagram showing a configuration of a sprinkling system 1 for preventing fire spread in a self-propelled parking lot according to the fourth embodiment. As shown in FIG. 17, the sprinkling system 1 for preventing fire spread according to the fourth embodiment is configured to include a fire extinguishing liquid supply unit 40 and a sprinkling head 150.

  The watering head 150 is fixed at a position corresponding to a substantially central position in the width direction of the roadway 20 on the ceiling of the roadway 20 between the parking sections 10 of the self-propelled parking lot 2. As the watering head 150, for example, a glass bulb type head or a flake type head that automatically sprinkles water by the heat of a fire can be used. The glass bulb type head is configured to support a water discharge valve by a glass bulb constructed by enclosing an expandable liquid in a heat sensitive body. Then, the liquid in the glass bulb expands due to the heat of the fire, thereby destroying the glass bulb, opening the water discharge valve and spraying water. The flake type head is configured to support the water discharge valve with a meltable metal. When the meltable metal is melted by the heat of the fire, the water discharge valve is opened to spray water. However, since these known heads can be used, description thereof is omitted. The watering head 151 configured as described above is provided with a watering port 151 at a position facing each of the parking sections 10 so as to spray water toward each of the parking sections 10 adjacent to each other across the roadway 20. .

  In such a configuration, when a fire occurs in any of the parking sections 10, the watering head 150 disposed on the roadway 20 between the fire section and the adjacent fire section receives the heat of the fire, Watering is automatically started to both the fire compartment and the adjacent fire compartment. For example, when the fourth parking section 10d becomes a fire section, watering is started from the watering head 150 disposed on the roadway 20a and the roadway 20b. After the fire is extinguished, for example, the operator performs a return operation for returning the watering head 150 to the initial state.

(Effect of Embodiment 4)
As described above, according to the fourth embodiment, when the watering head 150 receives heat from the fire, the watering head 150 automatically sprinkles water toward each of the parking sections 10. Or installation of wiring for connecting the control panel 70 and the watering head 150 can be omitted, and the configuration of the watering system 1 for preventing fire spread can be further simplified.

[III] Modifications to Each Embodiment While each embodiment according to the present invention has been described above, the specific configuration and means of the present invention are the same as the technical idea of each invention described in the claims. Modifications and improvements can be arbitrarily made within the range. Hereinafter, such a modification will be described.

(About problems to be solved and effects of the invention)
First, the problems to be solved by the invention and the effects of the invention are not limited to the above contents, and may vary depending on the implementation environment of the invention and the details of the configuration, and only a part of the problems described above. May be solved, or only some of the effects described above may be achieved. Furthermore, according to the present invention, problems not described above may be solved or effects not described above may be achieved.

(About installation of watering head and on-off valve)
In each embodiment, fire spread occurs in the parking section 10 diagonally opposite the fire section (for example, in the case of the fourth parking section 10d that is the fire section shown in FIG. 1, the second parking section 10b corresponds to it). Therefore, the watering heads 50 and 150 and the on-off valves 60 and 160 are not provided between the sections. However, the present invention is not limited to this. For example, when the separation distance between the fire zone and the parking zone 10 diagonally opposite the fire zone is 7.9 m or less, there is a possibility that the fire may occur in the parking zone 10, so the fire zone and the parking zone Sprinkling heads 50, 150 and on-off valves 60, 160 may be provided on the ceiling of the roadway 20 between them. For example, in Embodiment 1, the watering heads 50 and 150 and the on-off valves 60 and 160 may be provided on the ceiling of the roadway 20 where the first roadway 20a and the second roadway 20b intersect. The watering heads 50 and 150 may be provided with four watering ports 51 and 151 at positions facing each of the parking spaces 10 so as to perform watering to the first parking space 10a to the fourth parking space 10d. . Further, as specific types of the on-off valves 60 and 160, for example, the watering heads 50 and 150 can spray water toward each of the parking sections 10, and the watering heads 50 and 150 can be used for each of the parking sections 10. A multidirectional electromagnetic switching valve or the like that can stop water spraying may be used.

(About processing when both of the adjacent parking areas across the roadway are fire areas)
In each embodiment, the processing in the case where one of the parking sections 10 adjacent to each other across the roadway 20 is a fire section has been described. However, both of the parking sections 10 adjacent to each other across the roadway 20 The same processing can be performed for the processing in the case of the fire-compartment section. For example, in the first embodiment, the control unit 74 of the control panel 70 is connected to the water spray heads 50 and 150 and the on-off valves 60 and 160 provided in the roadway 20 between the fire sections. Or, if both adjacent parking lots have fired, it is no longer meaningful to prevent the spread of fire between them. You may control to.

(About processing when the vehicle is not parked in the fire adjacent area)
Moreover, in each embodiment, although it demonstrated that watering was performed to a fire adjacent area, it is not restricted to this. For example, when the vehicle is not parked in the fire adjacent section, it is considered that no fire spread occurs in the fire adjacent section, so the control unit 74 of the control panel 70 or the control unit 74 of the watering heads 50 and 150 is By controlling all or part of the watering heads 50 and 150 and all or part of the on-off valves 60 and 160 provided in the roadway 20 adjacent to the adjacent fire-exiting section, control is performed so as not to sprinkle toward the adjacent fire-departing section. Also good. In this case, for example, in order to determine whether or not there is a vehicle parked in the fire adjacent area, for example, the sprinkling system 1 for preventing the spread of fire includes an image (not shown) for capturing an image of the parking area 10. A photographing unit and an image processing unit (not shown) for analyzing the photographed image may be provided, or a detection sensor for detecting the presence of the vehicle may be provided.

DESCRIPTION OF SYMBOLS 1 Sprinkling system for fire spread prevention in self-propelled parking lot 2 Self-propelled parking lot 10 Parking section 10a First parking section 10b Second parking section 10c Third parking section 10d Fourth parking section 20 Roadway 20a First roadway 20b 2nd road 20c 3rd road 20d 4th road 30, 30a, 30b, 30c, 30d Fire detector 40 Fire extinguishing liquid supply part 41 Tank 42 Pump 43 Piping 50, 50a, 50b, 50c, 50d, 50a1 50a2, 50b1, 50b2, 50c1, 50c2, 50d1, 50d2, 150 Sprinkling head 51, 151 Sprinkling port 60, 60a, 60b, 60c, 60d, 160A, 160B, 160C, 160D Open / close valve 70 Control panel 71 I / O IF
72 input unit 73 output unit 74 control unit 74a fire position specifying unit 74b on / off valve specifying unit 74c watering direction specifying unit 74d on / off valve control unit 75 storage unit 75a fire position table 75b on / off valve table 80 experimental facility 81 CF board 82 burner 83 heat receiving Board 84 Watering head 85 Heat flow meter

Claims (5)

A watering system for preventing the spread of fire in a self-propelled parking lot,
A watering head that is installed on the ceiling of the roadway between the parking spaces of the self-propelled parking lot and can spray water to each of the adjacent parking spaces across the roadway,
Supply means for supplying water or fire extinguishing liquid to the watering head;
When a fire occurred in the parking area, it was installed between the fire area that was the parking area where the fire occurred and the adjacent fire area that was the parking area adjacent to the fire area across the roadway Control means for performing control for sprinkling water supplied by the supply means or fire extinguishing liquid from the watering head toward the fire adjacent section,
A watering system for preventing the spread of fire in a self-propelled parking lot. The water discharge central axis of the watering head is directed to a position corresponding to a height that is approximately half of the vehicle limit height in the self-propelled parking lot on the side of the fire adjacent section of the fire adjacent section.
A watering system for preventing the spread of fire in the self-propelled parking lot according to claim 1. The watering head is a watering direction fixed type watering head capable of watering toward each of adjacent parking sections across the roadway,
A fire detector installed in each of the parking spaces;
An on-off valve installed in each of the watering heads,
The control means, when a fire is detected by the fire detector, identifies the fire zone based on the installation location of the fire sensor that sensed the fire, and the identified fire zone and the fire zone On the other hand, by opening the on-off valve installed in the watering head installed between the adjacent fire-exiting sections across the roadway, water or fire extinguishing liquid is sprayed from the watering head,
A watering system for preventing the spread of fire in the self-propelled parking lot according to claim 1 or 2. The watering head is a watering direction movable watering head capable of watering each of the adjacent parking sections across the roadway,
A fire detector installed in each of the parking spaces;
An on-off valve installed in each of the watering heads,
The control means, when a fire is detected by the fire detector, identifies the fire zone and the fire adjacent zone based on the installation location of the fire sensor that sensed the fire, and the identified fire zone And the water spray head installed between the fire adjacent section adjacent to the fire section with the roadway in between so as to enable water spraying toward the specified fire adjacent section Along with opening the on-off valve installed in the moved watering head, water or fire extinguishing liquid is sprinkled from the watering head.
A watering system for preventing the spread of fire in the self-propelled parking lot according to claim 1 or 2. The watering head is a watering direction fixed type watering head capable of watering toward each of adjacent parking sections across the roadway,
A fire detector installed in each of the parking spaces;
A pipe extending from the supply means to the watering head, and provided for every parking section so as to be common to all the watering heads installed on the ceilings of all the roadways adjacent to the parking section. Piping,
An on-off valve arranged for each pipe provided for each parking section,
The control means, when a fire is detected by the fire detector, identifies the fire zone based on the installation location of the fire sensor that sensed the fire, and the piping corresponding to the identified fire zone Water or fire extinguishing liquid is sprinkled from the watering head by opening the on-off valve arranged;
A watering system for preventing the spread of fire in the self-propelled parking lot according to claim 1 or 2.

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