JP2008025296A - Three-dimensional parking garage - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a three-dimensional parking garage capable of efficiently extinguishing fire while miniaturizing a storage tank filled with inert gas. <P>SOLUTION: The three-dimensional parking tower garage for transporting a vehicle into a vehicle storage space by a lift, comprises a plurality of fire detectors 20 installed in the building A to output fire detection signals according to the detection of a fire; the storage tank 21 filled with inert gas; a plurality of injection nozzles 22 installed in the building A to inject inert gas; piping 23 extended from the storage tank 21 to the injection nozzles 22; a fire extinguishing control means 25 injecting inert gas according to a smoke detection signal; movable partitions 26 dividing the building A vertically into a plurality of sections in optional positions according to the smoke detection signal to form a plurality of fireproof sections B, C, for instance. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a multilevel parking lot apparatus that transports a vehicle to a vehicle storage space of a building by an elevator, and in particular, a multilevel parking lot that extinguishes fire by reducing an oxygen concentration by discharging an inert gas into a building in the event of a fire. Relates to the device.

  In general, a multilevel parking lot apparatus places a vehicle on an elevator at a vehicle entry / exit part of a building, transports and stores the vehicle to a target vehicle storage space, and again moves the vehicle from the storage location by the elevator. It is designed to be transported to the loading / unloading section for shipping (see, for example, Patent Document 1).

In the conventional multistory parking lot apparatus configured as described above, the vehicle storage space is usually unmanned because the vehicle is transported to the target vehicle storage space by the elevator. Taking advantage of this advantage, there are many fire extinguishing equipment that uses an inert gas such as carbon dioxide and nitrogen. That is, multiple fire detectors installed in the building and outputting fire detection signals in response to fire detection, storage tanks filled with inert gas, and multiple injection nozzles installed in the building and injecting inert gas And a pipe extending from the storage tank to the injection nozzle, and a fire extinguishing control means for injecting an inert gas in response to a fire detection signal. The fire is extinguished by reducing the concentration.
Japanese Patent No. 2684148

  By the way, the fire extinguishing equipment of the multistory parking lot apparatus as described above has a structure in which an inert gas is released to the entire building when a fire occurs. For this reason, for example, if the building is a high-rise building and its volume increases, it is necessary to adjust the amount of inert gas to the volume in order to reduce the oxygen concentration to a predetermined value in the event of a fire. A relatively large space for storing the tank is required. In general, a multi-story parking lot is required in places where there are restrictions on the site, and space saving of the apparatus is desired. In addition, when an inert gas is released throughout the large-capacity building in the event of a fire, it is necessary to replenish the same amount of inert gas, that is, an amount corresponding to the volume of the building, which is costly. There was also a problem. In addition, in order to allow people to enter the building after the release of inert gas, regardless of the presence or absence of a fire, it was necessary to extract the inert gas released from all the objects in the building. Took too long.

  The present invention has been made from the actual situation in the prior art described above, and its purpose is to reduce the size of a storage tank filled with an inert gas and to perform efficient fire extinguishing, An object of the present invention is to provide a multilevel parking lot apparatus capable of shortening the time required for recovery after discharge of an inert gas regardless of the presence or absence of a fire.

  In order to achieve the above object, an invention according to claim 1 of the present invention is an elevator that mounts a vehicle and moves up and down a hoistway formed in a hierarchy between a vehicle entry / exit part of a building and a vehicle storage space. A lift drive means for driving the lift, a lift control means for controlling the lift drive means, a fire detector that is installed in the building and outputs a fire detection signal in response to a fire detection, and inactive According to the fire detection signal, a storage tank filled with gas, a plurality of injection nozzles installed in the building and injecting the inert gas, a pipe extending from the storage tank to the injection nozzle, and And a fire extinguishing control means for injecting the inert gas, and in accordance with the fire detection signal, the building is divided into a plurality of parts at an arbitrary position in the vertical direction to form a plurality of fire prevention sections. Movable partition Provided with a, the extinguishing control unit is characterized in that releasing the inert gas fire compartment fire detectors which output the fire detection signal is provided.

  In the invention according to claim 1 of the present invention configured as described above, when the fire detector outputs a fire detection signal in response to a fire detection, a partition that divides the building into a plurality of parts in the vertical direction at an arbitrary position is operated. And forming a plurality of fire prevention compartments. And a fire extinguishing control means injects an inert gas to the fire prevention zone where the fire detector which output the fire detection signal from the storage tank via the piping and the injection nozzle is installed, and extinguishes fire. In this way, by dividing the building into a plurality of fire-extinguishing units for each fire prevention section, the amount of inert gas required to lower the oxygen concentration to a predetermined value can be reduced, and the storage tank can be downsized. . In addition, the time required for recovery after discharge of the inert gas can be shortened regardless of the presence or absence of a fire.

  The invention according to claim 2 of the present invention is characterized in that the pipes are different systems for each of the fire prevention sections, and these pipes are connected to the storage tank via a selection valve.

  In the invention according to claim 2 of the present invention configured as described above, when the fire detector outputs a fire detection signal in response to a fire detection, the fire detector that outputs the fire detection signal is installed as the fire extinguishing control means. The selection valve corresponding to the fire prevention section is opened, and the fire is extinguished by injecting an inert gas from the storage tank to the predetermined fire prevention section through the piping and the injection nozzle. As a result, a storage tank filled with an inert gas required for one fire prevention section can be prepared for fire extinguishing of the entire building, and the storage tank can be downsized. Even if the storage tank has a capacity capable of being filled with an inert gas required for extinguishing fires in all fire prevention sections, and even if fire extinguishing is possible simultaneously in a plurality of fire prevention sections, the storage tank can It is possible to discharge only the inert gas required for the fire prevention section, and efficient fire extinguishing can be performed. In addition, the time required for recovery after discharge of the inert gas can be shortened regardless of the presence or absence of a fire.

  According to the present invention, the building is divided into a plurality of parts so that the fire can be extinguished for each fire prevention section, thereby reducing the amount of inert gas required to lower the oxygen concentration to a predetermined value, miniaturizing the storage tank, and extinguishing the fire. Space saving of equipment can be achieved. In addition, since the amount of the inert gas released at the time of the fire is in accordance with a predetermined fire prevention section, it is possible to reduce the cost required for refilling the inert gas. In addition, the time required for recovery after discharge of the inert gas can be shortened regardless of the presence or absence of a fire.

  Hereinafter, an embodiment of a multi-story parking apparatus according to the present invention will be described with reference to the drawings.

  FIG. 1 is a schematic configuration diagram showing an embodiment of a multilevel parking lot apparatus according to the present invention, and FIG. 2 is a flowchart showing an operation procedure of the multilevel parking lot apparatus of FIG.

  The multilevel parking lot apparatus shown in FIG. 1 is a fork type elevator parking, and a vehicle entry / exit room 1 is installed on the first floor above the ground, and a vehicle entrance / exit 1a is located in front of the vehicle entry / exit room 1, A door (not shown) is provided to be openable and closable. A fork type turntable 2 is rotatably incorporated in a floor surface of the vehicle loading / unloading chamber 1 by a turntable driving device 3 having a lift mechanism. The vehicle entry / exit chamber 1 is provided with a vehicle position detection photoelectric tube 4, a driver exit confirmation photoelectric tube 5, a vehicle position guide plate 6, a buzzer 7, a lighting device 8, and the like. Further, the building A is formed with a hoistway 9 communicating with the upper side of the vehicle loading / unloading chamber 1, and a fork-type elevator lift 10 on which the vehicle is placed as an elevator is raised and lowered by the hoisting drive unit 11. It is assembled as possible. In addition, a vehicle storage space 12 including a plurality of storage shelves 13 formed hierarchically along both sides of the hoistway 9 is provided, and fork-type traversing carriages 14 are respectively provided in the storage shelves 13. Thus, it is assembled so as to be able to advance and retract between the hoistway 9. Furthermore, an operation unit 16 that performs operations of each device including a vehicle entry and exit operation and a control unit 17 that controls each part of the fork type elevator parking are provided. In addition, while the raising / lowering drive means which drives the elevator mentioned above consists of the raising / lowering drive part 11, for example, the raising / lowering control means which controls an raising / lowering drive means consists of the control part 17, for example.

  In addition, a fire extinguishing facility in the building A is installed in the building A, a fire detector 20 that outputs a fire detection signal in response to a fire detection, a storage tank 21 filled with an inert gas, for example, nitrogen, A plurality of injection nozzles 22 installed in the building A for injecting inert gas, a pipe 23 extending from the storage tank 21 to the injection nozzle 22, and interposed between the pipe 23 and the storage tank 21. A selection valve 24, a fire extinguishing control unit 25 for injecting an inert gas in response to a fire detection signal, and a building in a vertical direction at an arbitrary position in accordance with a fire detection signal to divide the building into a fire prevention section B and fire prevention A movable partition 26 forming the section C is provided. The above-described piping 23 is a different system for each fire prevention section, and the piping 23a extends over the fire prevention section B and is connected to the storage tank 21 via the selection valve 24a. On the other hand, the pipe 23b extends over the fire prevention section C and is connected to the storage tank 21 via the selection valve 24b. Further, the fire extinguishing control unit 25 outputs an operation signal for operating the partition 26 according to the fire detection signal and an opening signal for opening the selection valves 24a and 24b. The fire prevention section B and the fire prevention section C have substantially the same volume, and the storage tank 21 has a capacity filled with an inert gas, that is, nitrogen required for reducing the oxygen concentration of one fire prevention section to a predetermined value. It has become.

  In this embodiment, when a vehicle is to be stored, the vehicle stored in the vehicle storage / removal room 1 is placed on the turntable 2 and the turntable 2 is turned so that the front of the vehicle faces the vehicle input / output port 1a. In this direction, the vehicle is transferred to the elevator lift 10 to transfer the vehicle to a designated level, and then the traversing carriage 14 traverses and stores the vehicle in the storage shelf 13. On the other hand, when leaving the vehicle, the traversing carriage 14 on which the vehicle is placed moves from the predetermined storage shelf 13 to the hoistway 9, and in this state, the elevator lift 10 rises to the floor so that the vehicle is placed on the elevator lift 10. Is passed. Next, after the traversing carriage 14 returns to the storage shelf 13, the elevator lift 10 is lowered to the vehicle loading / unloading room 1 on the first floor, where the vehicle is delivered from the elevator lift 10 onto the turntable 2. At this time, the front surface of the vehicle is in a state facing the vehicle entrance / exit 1a.

  In such a fork-type elevator parking, for example, when a fire goes up for some reason from a vehicle stored on the upper floor, the fire detector 20 detects a fire and outputs a fire detection signal in step S1. In response to this fire detection signal, the fire extinguishing control unit 25 operates the partition 26 as shown in step S2. That is, the pair of partitions 26 provided on the intermediate floor extend in the horizontal direction to block the hoistway 29 as shown by the dotted line, and the building A is divided into the fire prevention section B and the fire prevention section C. Next, the fire extinguishing control unit 25 outputs an open signal to the selection valve 24a corresponding to the fire prevention zone B where the fire detector 20 that has output the fire detection signal is installed as step S3. In response to this open signal, the selection valve 24a is opened as step S4, and nitrogen is released from the storage tank 21 to the fire prevention zone B through the pipe 23a and the injection nozzle 22 as shown in step S5. This release of nitrogen reduces the oxygen concentration in the fire prevention zone B as shown in step S6, and fire extinguishing is performed.

  According to this embodiment configured as described above, the storage tank 21 filled with nitrogen required for one fire prevention section can be constructed by dividing the building A into two and making each fire prevention section extinguishable. Since the entire building A can be prepared for fire extinguishing, the storage tank 21 can be downsized to save space in the fire extinguishing equipment. In addition, since the amount of nitrogen released when a fire breaks out corresponds to a predetermined fire prevention section, it is possible to reduce the cost required for nitrogen replenishment.

  In addition, in this embodiment, it was set as the structure which divides the building A into two fire prevention divisions, However, This invention is not restricted to this, The number of fire prevention divisions can be arbitrarily set according to the height etc. of a building. Moreover, although the capacity | capacitance of nitrogen with which the storage tank 21 is filled was made into the capacity | capacitance required in order to reduce the oxygen concentration of one fire prevention compartment to a predetermined value, a storage tank is made into all fire prevention compartments, ie, fire prevention compartment B and fire prevention compartment. The capacity may be filled with an inert gas required for extinguishing the fire in C, and fire extinguishing may be performed simultaneously in the fire prevention section B and the fire prevention section C to ensure further safety. And even when comprised in this way, it is possible to discharge | release only the inert gas required for each fire prevention division according to the grade of a fire spread, and can perform efficient fire extinguishing. Moreover, a storage tank and piping can be provided for each fire prevention section, and fire extinguishing can be made possible for each fire prevention section.

FIG. 1 is a schematic configuration diagram showing an embodiment of a multilevel parking lot apparatus according to the present invention. It is a flowchart which shows the operation | movement procedure of the multistory parking lot apparatus of FIG.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Vehicle entry / exit room 2 Turntable 3 Turntable drive device 9 Hoistway
DESCRIPTION OF SYMBOLS 10 Elevator lift 11 Lift drive part 12 Vehicle storage space 13 Storage shelf 16 Operation part 17 Control part 20 Fire detector 21 Storage tank 22 Injection nozzle 23 Piping 24 Selection valve 25 Fire extinguishing control part 26 Partition A Building B Fire prevention area C Fire prevention area

Claims (2)

An elevator that places a vehicle and moves up and down a hoistway formed in a hierarchy between a vehicle entry / exit part of the building and a vehicle storage space, an elevating drive unit that drives the elevator, and controls the elevating drive unit A plurality of elevator control means, a fire detector that is installed in the building and outputs a fire detection signal in response to a fire detection, a storage tank filled with an inert gas, a plurality of installed in the building, and the inert In a three-dimensional parking apparatus comprising an injection nozzle for injecting gas, a pipe extending from the storage tank to the injection nozzle, and a fire extinguishing control means for injecting the inert gas in response to the fire detection signal ,
In accordance with the fire detection signal, the building is divided into a plurality of parts in an up and down direction at an arbitrary position, and a movable partition that forms a plurality of fire prevention sections is provided, and the fire extinguishing control means outputs the fire detection signal. A three-dimensional parking garage apparatus that discharges the inert gas to a fire prevention compartment in which a fire detector is installed. The multi-story parking apparatus according to claim 1, wherein the pipes are different systems for each fire prevention section, and these pipes are connected to the storage tank via a selection valve.

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