JP2968825B2 - Fire extinguishing equipment for multi-story parking lot - Google Patents

Description

Description: TECHNICAL FIELD The present invention relates to a fire extinguishing system for a multistory parking garage provided with a pallet-like loading section for loading an automobile.

[Prior Art] In recent years, it has become increasingly difficult to secure a flat parking lot due to soaring land prices in large cities, and construction of three-dimensional parking lots has been increasing due to land efficiency use and economic problems. I have.

In parking lots inside buildings (other than outdoors), the law restricts the installation of effective fire extinguishing equipment in consideration of the risk of car fires containing gasoline.

As a fire extinguishing system for such a parking lot, in a flat parking lot, a foam fire extinguishing system, a water spray fire extinguishing system, a powder fire extinguishing system, and the like are installed. In addition, halong fire extinguishing equipment, powder fire extinguishing equipment, etc. are installed according to their scale and selected by considering economic efficiency.

As fire extinguishing equipment for a three-dimensional parking lot, although Ha Long fire extinguishing equipment is more expensive than other fire extinguishing equipment, fire extinguishing performance, safety for humans, ease of post-processing after fire extinguishing activities, installation and maintenance Many are installed because of easiness.

[Problems to be Solved by the Invention] However, in recent years, global environmental problems such as the depletion of the ozone layer in the atmosphere by halon have begun to take notice, and the use of halon in fire extinguishing equipment will be extinguished in the near future due to international treaties. Is predicted. To date, no effective fire extinguishing system has been found to replace Ha Long, and it is possible to install powder fire extinguishing systems as an alternative. However, powder fire extinguishing equipment, unlike gaseous halon, is difficult to penetrate into places where fire extinguishing powder is effectively burnt because it is blocked by the roof of the car, and the fire extinguisher discharge time is less than one minute. It is extremely short, and furthermore, there is a problem that the fine powder of the fire extinguisher absorbs moisture after release, which makes it extremely difficult to dispose of it.

Furthermore, as a fire extinguishing system for a hazardous material facility such as a complex, it is conceivable to install a foam extinguishing system, which has been evaluated for its excellent fire extinguishing effect and is installed in large numbers.

However, in a multistory parking garage that accommodates cars in a double-triple stack, similarly to powder fire extinguishing equipment, released fire-extinguishing foam is less likely to penetrate into places where it is blocked by the roof of the car and burning. In a multi-storey parking lot, a car is mounted on a casing such as a gondola or pallet, and can move up and down and in the horizontal direction. When there are many, there are systems that rotate more than 20 units three-dimensionally, etc.In foam fire extinguishing, it may not be possible to extinguish fire effectively unless fire extinguishing agent is emitted from directly above or below each car,
In a multi-story parking garage having movable parts as described above, since piping for sending foam is not available, installation in a multi-story parking garage is not suitable.

However, foam fire extinguishing is different from powder fire extinguishing, because it has a shielding effect of shielding the fire extinguishing object with a foam film (suffocation fire extinguishing effect) and a cooling effect by mixing foam with fire extinguisher in water,
It has the effect of extinguishing fire by wrapping it with foam while flowing flammable liquid such as gasoline that has flowed out.
The fire extinguishing effect lasts for 10 minutes.

Because of these excellent features, foam fire extinguishing equipment has been installed in most flat parking lots, and its economy is comparable to other fire extinguishing equipment.

An object of the present invention is to provide a fire extinguishing system for a multi-story parking garage in which such a foam fire extinguishing system having excellent fire-extinguishing performance and economic efficiency can be applied to a multi-story parking garage which has been conventionally difficult to install. .

[Means for Solving the Problems] In order to achieve this object, the present invention is configured as follows. The reference numerals in the drawings of the embodiments are also shown.

First, as a first invention, as a fire-extinguishing facility of a multistory parking lot 100 movably provided with a pallet-shaped loading portion 12 for loading a vehicle 10, a foam head is provided at substantially the center of the front surface and / or back surface of the loading portion 12.
14 and 16, the pipe 18 is pulled out from the foam heads 14 and 16 to one end of the ascending section 12, and the end of the pipe 18 is a trumpet-shaped receiving section 20, and the nozzle 22 is provided on the fixed side facing the end of the pipe 18.
And the nozzle 22 is connected to a foam fire extinguisher by pressurizing and supplying a foam extinguishing agent.

Here, the nozzle 22 is provided with a movable nozzle structure that expands by the delivery pressure when receiving the supply of the foam, and connects the tip to the trumpet-shaped space 20 drawn out at one end of the mounting portion 12.

A bellows 24 for a check valve is provided inside the pipe 18 of the mounting section 12.
Is provided.

On the other hand, as a second invention, a fire extinguishing system of a multistory parking lot provided with a pallet-shaped loading section 12 on which a vehicle 10 is loaded can be moved up and down. A nozzle 22 is provided on the fixed side opposite to the head 30 for radiating foam to the head 30.In the event of a fire, the foam extinguisher radiated from the nozzle 22 collides with the head 30 to remove air bubbles. It is characterized by spraying and extinguishing fire.

[Action] According to the fire extinguishing system for a multi-story parking lot of the present invention having such a configuration, even if the multi-story parking lot stores a large number of cars in a double-triple stack with a car mounted on the pallet-mounted mounting portion, Foam fire extinguishing agent is supplied to the vehicle stored on the movable side by the fixed side by the separate piping system, and the fire extinguishing foam can be efficiently discharged from the upper and / or lower center of the vehicle, and it can be used in the near future. Excellent fire extinguishing performance (nitrogen fire extinguishing effect) can be obtained in the same manner as the lost Ha Long fire extinguishing equipment.

In addition, by providing a movable nozzle structure extending at the water supply pressure as a nozzle installed on the fixed side, the fixed-side nozzle can be connected to the movable-side trumpet-shaped receiving portion to efficiently supply the foam. Further, by providing the bellows for the check valve in the movable side pipe, the foam for extinguishing foam discharged from the fixed side head can be efficiently sent to the foam head.

On the other hand, piping is provided on the movable side, and the foam is sprayed by directly blowing the foam on the movable side head from the nozzle on the fixed side, so that the piping equipment on the movable side can be simplified and the equipment cost can be reduced.

[Embodiment] FIG. 1 is an embodiment configuration diagram showing one embodiment of the present invention.

In FIG. 1, reference numeral 100 denotes a multi-story parking lot. In this multi-story parking lot 100, when one car 10 is first stored in a pallet 12 as a movable part from a car entrance 26 facing the road, a lifting device The pallet 12 is moved by 28, and the next pallet 12 is set at the vehicle entrance 26. In this way, the pallets 12 are sequentially moved to accommodate the automobile 10 three-dimensionally.

In the fire extinguishing system of the present invention, a pallet 12 for mounting and storing a car is provided for one of such multi-story parking lots 100.
As one fire extinguishing section, a foam head 14 is provided at the bottom and a foam head 16 is provided at the top. When this is viewed from one pallet 12, it means that the foam head 14 is installed on the surface of the pallet 12 and the foam head 16 is installed on the back of the pallet 12. For the pallet located at the top, the foam head 16 is installed on the building side.

The foam heads 14 and 16 provided for each fire extinguishing section partitioned by the pallet 12 connect a pipe 18 toward one end of the pallet 12, and a trumpet-shaped receiving portion 20 is provided at the tip of the pipe 18.

Trump-shaped receiving part 20 at the end of pipe 18 provided on pallet 12
The nozzle 22 is installed to face the wall surface on the building side (fixed side) facing the nozzle. The nozzle 22 is connected via a compartment valve 32 to the foam fire extinguisher shown in FIG. 6, which will be described later.

FIG. 2 is a sectional view showing an embodiment of a flared receiving portion 20 provided at an end of a pipe 18 installed on the pallet 12 of FIG. In FIG. 2, the trumpet-shaped receiving portion 20 has a tapered receiving port 34 formed at one end, and a screw portion 36 for the pipe 18 at the other end. Further, a check bellows 24 is incorporated in two places inside the receiving portion 20. This check bellows 24 is taken out and shown in FIG.
A conical bellows portion 40 is integrally provided following the flange portion 38, and a cutout 42 is provided in the bellows portion 40 as shown in FIG. 3 (b) to allow the flow of the foam from right. The flow in the reverse direction is blocked. Of course, bellows for check
24 is made of soft rubber or the like.

FIG. 4 shows the installation state of the foam head 14, the pipe 18 and the receiving portion 20 with respect to the surface of the pallet 12 of FIG. Pipe groove in the center of the surface of the pallet 12
44 is formed, and the foam head 14, the pipe 18, and the receiving portion 20 are installed in the pipe groove 44 as shown in the figure.

FIG. 5 is an explanatory view showing the nozzle 22 on the fixed side in the embodiment of FIG. 1 taken out. The nozzle 22 has a connection screw 46 at the rear, and the radiation end 48 is formed by narrowing the distal end side. I have. Also, as shown in FIG. 5 (b), a straightening plate 50 is radially incorporated in the nozzle 22, so that the flow of the fire extinguishing agent is adjusted when passing through the nozzle 22 so that the fire extinguishing agent does not spread out from the emission port 48. So that it can be released.

FIG. 6 is an explanatory view showing a foam fire extinguisher which pressurizes and supplies a foam extinguishing agent to the nozzle 22 of FIG. 1 at the time of fire.

In FIG. 6, reference numeral 52 denotes a fire-extinguishing pump, which pumps up fire-extinguishing water from a water-source water tank 54 and supplies the fire-extinguishing water to a water supply main pipe 56 by a start-up operation at the time of fire. A mixer 58 is provided in the water supply main pipe 56, and the foam extinguishing agent stored in the foam extinguishing agent storage tank 60 is mixed with the mixer 58 so as to have a predetermined mixing ratio. Compartment valve for the obtained foam
Pressure is supplied to the nozzle 22 via 32. Pressurized fire extinguishing water is introduced into the foam extinguishing agent storage tank 60 by the branch pipe 62 from the water supply main pipe 56, and by introducing the pressurized extinguishing water, the built-in foam extinguishing agent is pressurized via a rubber film or the like. Mixer 58
To supply.

Referring again to FIG. 1, a fire detector 64 is installed on each storage upper part (the back side of the pallet 12) of the automobile 10 partitioned by the pallet 12, and a power / signal line from the fire detector 64 is provided. Is connected to the receiver so that the position of the pallet 12 where a fire has occurred on the receiver side can be known. In the event of a fire, the fire extinguishing pump 52 shown in FIG. At the same time, open the compartment valve 32 of the compartment where the fire was detected, and
Supplies foam foam to the above cars.

Further, in the multi-story parking lot 100, when a fire occurs in the car 10 on the pallet 12, the main combustible is a liquid such as gasoline, so that the gasoline falls to the lowermost floor of the multi-story parking lot 100. There is a risk of spreading fire while flowing. Therefore, in order to prevent the spread of fire caused by the gasoline that has flowed out and dropped, a necessary gradient is provided on the lowermost floor surface 102 of the multi-story parking lot 100, and a gasoline trap 104 is installed on the lowest floor portion. Has a fire extinguisher pit structure, which collects combustibles such as gasoline burning while flowing to the gasoline trap 104, and covers with a fire extinguishing foam falling down from above to enable suffocation.

Next, a fire extinguishing operation when a car fire occurs in the embodiment of FIG. 1 will be described.

Now, assuming that a fire has occurred in one of the cars 10 stored in the multi-story parking lot 100 shown in FIG. 1, a fire detector 64 installed immediately above the place where the fire occurred activates and the receiver side operates. Performs a fire alarm and displays the pallet of the fire location. In response to the fire alarm in the multi-storey parking lot 100, the observer starts the fire extinguishing pump 52 of the foam fire extinguishing apparatus shown in FIG. 6 by remote control, and when the pump has been started, the section provided at the fire occurrence place The valve 32 is opened by remote control.

For this reason, the foam extinguishing agent pressurized and supplied from the foam extinguishing apparatus shown in FIG. 6 passes through the open compartment valve 32, and as shown in FIG. In the section determined by, that is, the foam extinguishing agent is released from the nozzle 22 provided at the top and bottom of the fire-causing vehicle 10, received by the receiving portion 20 on the pallet 12 side, passes through the pipe 18,
When air is entrained from the foam heads 14 and 16, bubbles are generated by entraining air, and fire-extinguishing foam is emitted from the top center and the bottom center of the vehicle 10 causing a fire, and the vehicle 10 causing the fire is totally Wrap with fire-fighting foam to extinguish suffocation.

In FIG. 7, foam is extinguished only for the automobile 10 in which a fire has occurred. However, in order to prevent the spread of fire, the compartment valve 32 corresponding to the location immediately below or immediately above the fire occurrence compartment is opened. You may make it perform foam fire extinguishing.

FIG. 8 is a block diagram showing another embodiment of the present invention. In this embodiment, the nozzle installed on the fixed side has a movable nozzle structure.

8, foam heads 14, 16, a pipe 18, and a receiving portion 20 are provided on the pallet 12 side, similarly to the embodiment of FIG. On the other hand, a movable nozzle 66 is provided as a nozzle provided on the building side, that is, on the fixed side.

FIG. 9 shows an embodiment of the movable nozzle 66 of FIG. 8, in which a fixed tube 70 having a connection screw 68 for piping is provided.
In contrast, a movable tube 74 is mounted via a spring 72 therebetween, and the nozzle 22 shown in FIG.

When the movable nozzle 66 in FIG. 9 is not receiving the water supply pressure, the movable tube 74 is in the retracted position by the force of the spring 72 as shown in the figure, but when receiving the water supply pressure, it moves forward against the spring 72. It is extruded and becomes elongated.

As a result, as shown in FIG. 10, the movable nozzle 66 is extended by the water supply pressure upon receiving the pressurized supply of the foam extinguishing agent in the event of a fire in the automobile 10, and the tip of the nozzle is received at the receiving portion 20 on the pallet 18 side.
That is, it is pressed against the receiving port 34 of the receiving portion 20 shown in FIG.
The foam extinguishing agent can be efficiently supplied to the pipe 18 with the receiving part 20 and the movable nozzle 66 connected to discharge the fire extinguishing foam from the foam heads 14 and 16.

FIG. 11 is a configuration diagram showing another embodiment of the present invention. This embodiment is characterized in that the piping 18 and the receiving portion 20 on the pallet 12 side are not required.

In FIG. 11, a head 30 is provided at the back of the pallet 12, i.e., at the center just above the automobile 10 to generate air bubbles by directly applying the foam for extinguishing foam discharged from the nozzle 22 on the fixed side. .

 The head 30 has, for example, a structure shown in FIG.

In FIG. 12, the head 30 has an upper deflector 76 and a lower deflector 78 which are opened forward to receive the foam,
Further, a center deflector 80 is provided inside.The center deflector 80 has, for example, a plurality of mountain-shaped grooves formed in a lateral direction, and receives a foam fire-extinguishing agent from a direction indicated by an arrow A and randomly scatters it. The air is entrained to generate fire-extinguishing foam due to the collision, and the fire-extinguishing foam is sprayed on the vehicle 10 immediately below.

According to the embodiment shown in FIG.
In addition, the equipment configuration can be simplified as much as there is no need to provide the receiving portion 20.

FIG. 13 is a block diagram showing another embodiment of the present invention, wherein the head 30 in FIG. 11 is a rotary bubble head.

That is, the rotary foam head 82 is installed at a position just above the center of the automobile 10 stored in the pallet 12, and the rotary foam head 82 includes a receiving portion 84 opened toward one end of the pallet 12. The nozzle 84 provided on the building side (fixed side) with respect to the part 84 can discharge and supply the foam.

As shown in FIG. 14, the rotary bubble head 82 is provided with a rotatable portion 90 rotatably with respect to a fixed side 88 to which a pipe 86 is connected. As shown in FIG. The foam discharge nozzle 92 is arranged in three places in the tangential direction,
The rotating unit 90 is rotated by the reaction force due to the release of the foam from the foam 92, and the foam is discharged to the surroundings while rotating the nozzle 92. Further, a lower foam head 94 is provided below the rotating section 90, and can discharge fire extinguishing foam directly below the rotating foam head 84.

By using such a rotating foam head 84, fire-extinguishing foam can be evenly distributed to the automobile 10 in which a fire has occurred.

Of course, the rotary foam head 84 is not limited to the embodiment of FIG. 13, but rather the foam head immediately above the embodiment of FIG. 1 or FIG.
It may be used instead of 16.

[Effects of the Invention] As described above, according to the present invention, even in an automobile mounted on a movable side such as a pallet, a foam extinguishing agent is supplied from a foam extinguishing device as a fixed facility to a movable side by a separate pipe system. To efficiently extinguish fires by emitting fire extinguishing foam from directly above and / or below the car, and to extinguish car fires efficiently with the suffocation fire extinguishing effect, replacing halon fire extinguishing equipment, which is expected to be unusable in the near future As a fire extinguishing system for a multi-story parking lot, a fire extinguishing system that can sufficiently compete with fire extinguishing performance and economy can be realized.

[Brief description of the drawings]

FIG. 1 is a structural view showing an embodiment of the present invention; FIG. 2 is a sectional view of an embodiment of a pallet side receiving portion in FIG. 1; FIG. 3 is built in the receiving portion in FIG. FIG. 4 is an explanatory view of a bubble head installation structure with respect to the pallet surface of FIG. 1; FIG. 5 is an explanatory view of an embodiment of a fixed side nozzle of FIG. 1; FIG. FIG. 7 is an explanatory diagram of a foam fire extinguishing apparatus used in the present invention; FIG. 7 is an explanatory diagram of a foam fire extinguishing state in the embodiment of FIG. 1; FIG. 8 is a configuration diagram of another embodiment of the present invention using a movable nozzle; FIG. 10 is a view showing an embodiment of a movable nozzle shown in FIG. 8; FIG. 10 is an explanatory view of a state of foam extinguishing by a movable nozzle; FIG. 11 is a view showing another embodiment of the present invention in which pallet-side piping is unnecessary; FIG. 13 is an explanatory view showing an embodiment of the head of FIG. 11; FIG. 13 is a structural view of another embodiment of the present invention using a rotating bubble head; FIG. It is an example illustration of a rotating foam head. In the figure, 10: Automobile 12: Pallet (movable part) 14, 16: Foam head 18: Piping 20: Receiving part 22: Nozzle 24: Non-return bellows 26: Automobile entrance 28: Lifting device 30: Head 32: Compartment valve 34: Receptacle 36: Connection screw 38: Flange 40: Bellows part 42: Cut 48: Radiation port 50: Rectifier plate 52: Fire pump 54: Water source tank 56: Water supply main 58: Mixer 60: Foam fire extinguishing agent storage tank 64 : Fire detector 66: Movable nozzle 70: Fixed tube 72: Spring 74: Movable tube 76: Upper deflector 78: Lower deflector 80: Center deflector 82: Rotating foam head 84: Receiving unit 86: Piping 88: Fixed unit 90: Rotating Part 92: foam discharge nozzle 94: foam head 100: multi-story parking lot 102: floor 104: gasoline trap

Claims (4)

(57) [Claims] 1. A fire extinguishing system for a multistory parking garage having a pallet-like loading section for loading a vehicle, wherein a foam head is provided substantially at the center of the surface and / or back of the loading section. A pipe is drawn out at one end of the mounting section from above, a trumpet-shaped receiving section is provided at the end of the pipe, a nozzle is provided on a fixed side facing the end of the pipe, and the nozzle is supplied with a foam extinguishing agent under pressure. A fire extinguishing system for a multi-story parking lot, which is connected to the equipment by piping. 2. A movable nozzle structure wherein the nozzle is extended by a delivery pressure when the supply of the foam is received, and a nozzle end is connected to a trumpet-shaped receiving portion drawn out at one end of the mounting portion. The fire extinguishing system for a multi-story parking lot according to claim 1. 3. The fire extinguishing system for a multi-story parking lot according to claim 1, wherein a bellows for a check valve is provided inside the pipe of the loading section. 4. A fire extinguishing system for a multistory parking garage having a pallet-like loading section for loading a vehicle, wherein a head for foam spraying is provided near the center of the surface and / or back of the loading section. On the fixed side facing the head, there is provided a nozzle for radiating foam to the head, and in the event of a fire, the foam extinguisher radiated from the nozzle collides with the head to generate air bubbles and disperse the fire. Fire extinguishing equipment for multi-storey parking lots.