JP2006016148A - Fire control operation system of passenger conveyor - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a fire control operation system of a passenger conveyor capable of reducing the concentration of evacuees 6 on stairs 29 by operating passenger conveyors 11 to 14 for evacuation corresponding to situation of fire and preventing extreme concentration of passengers 5 on an entrance by conveyance of the passenger conveyors 11 to 14. <P>SOLUTION: In this fire control operation system, when fire occurs in the premises, the passenger conveyors 11 to 14 are switched from normal operation to evacuation operation to convey persons 6 remaining in the premises for evacuation. Evacuation operation including the direction of operation is set corresponding to situation of fire. If the direction of operation is the same as the direction of operation up to now, the operation is continued as it is to perform evacuation operation. If the direction of operation is the reverse direction, the passenger conveyors are decelerated and stopped gently, and then slowly started in the backward and reverse direction for evacuation operation. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a fire control operation system in which an evacuee remaining in a building during a fire is conveyed by a passenger conveyor and evacuated.

The building is divided into fire prevention areas for each predetermined floor area, and when a fire breaks out, it is limited to that area and does not spread to other areas. The escalator is installed in a vertical hole formed through each floor. In order to prevent the fire from spreading to the adjacent floor through this vertical hole, the part where the escalator is installed is partitioned by surrounding it with a fire door.
Therefore, it has not been considered that conventional fire control operation systems related to passenger conveyors, in particular escalators, can be used as an evacuation route by stopping the escalator and surrounding the fire prevention compartment when a fire occurs. For this reason, the rest in the building was evacuated exclusively using stairs.
In contrast to the conventional passenger conveyor fire control operation system, the escalator is installed through the floor in the same way as the stairs, and is used as an evacuation route in the event of a fire, and the escalator is operated in the evacuation direction. An evacuation structure in the event of a fire has been proposed (see, for example, Patent Document 1).

JP 2000-334054 A (paragraph number 14, FIGS. 1 to 3)

The conventional fire control system for passenger conveyors is configured as described above, and even if the passenger conveyor is installed at the main point of traffic flow in the building, the area around the passenger conveyor is fire-proof when a fire occurs. It was sectioned and was not used as an evacuation route. For this reason, evacuees had to evacuate exclusively by stairs, and there was a problem that evacuees concentrated on the stairs.
Moreover, according to the said patent document 1, an escalator is driven and evacuated in a fire prevention zone at the time of a fire. For this reason, even if the concentration of evacuees on the stairs can be reduced, the inside of the fire prevention area is small, so there are no places for the evacuees transported by the escalator, and many people concentrate near the entrance / exit. There was a problem that the occurrence of secondary disasters was a concern.

The present invention has been made to solve the above-described problems, and an object of the present invention is to reduce the concentration of evacuees on stairs by evacuating a passenger conveyor in response to a fire situation.
It is another object of the present invention to provide a fire control operation system for a passenger conveyor that avoids the concentration of evacuees at the entrance and exit due to transportation by the passenger conveyor.

  The fire control operation system for passenger conveyors according to the present invention is such that when a fire occurs on the premises, the passenger conveyor is switched from normal operation to evacuation operation so that the remaining persons on the premises are transported and evacuated. Set the evacuation operation including the driving direction according to the situation, and if the driving direction is the same direction as the previous driving direction, continue the evacuation driving as it is, and in the reverse direction Then, the vehicle is decelerated and slowly stopped and then slowly started in the reverse direction to perform evacuation operation.

According to the present invention, as described above, the evacuation operation including the driving direction is set corresponding to the fire situation, and the passenger conveyor is operated according to the set evacuation operation, so the concentration of the refugees on the stairs is reduced. There is an effect that it is possible.
In addition, if the degree of congestion at the entrance / exit of the passenger conveyor is detected and the degree of congestion exceeds a predetermined value, if the passenger conveyor is stopped, the concentration of passengers at the entrance / exit can be avoided. There is an effect that it is possible.

Embodiments of the present invention will be described below with reference to the drawings. In addition, in each figure, the same code | symbol is attached | subjected to the part which is the same or it corresponds, and duplication of description was omitted.
Embodiment 1 FIG.
1 to 5 show a fire control operation system for a passenger conveyor according to Embodiment 1 of the present invention.
FIG. 1 is a longitudinal sectional view of a three-story building showing the side of an escalator, which is a passenger conveyor arranged in a crisscross. That is, the first machine escalator 11 is straddled between the first floor 1 and the second floor 2 and the start / stop operation is performed by the first machine operation panel 11s. In normal operation, passengers shall be transported in the upward direction. Similarly, the No. 2 escalator 12 is extended between the first floor 1 and the second floor 2 and is operated to be started and stopped by the No. 2 operation panel 12s, and the passenger is transported in the downward direction in the normal operation. The No. 3 escalator 13 is stretched between the second floor 2 and the third floor 3 and is operated to be started and stopped by the No. 3 operation panel 13s. In normal operation, the No. 3 escalator 13 conveys passengers in the downward direction. Similarly, the No. 4 escalator 14 is provided between the second floor 2 and the third floor 3 and is operated to be started and stopped by the No. 4 operation panel 14s. In normal operation, passengers are transported in the upward direction. Fences 41 to 43 are erected on the floors 1 to 3 on the left and right of the vertical hole.

When a fire occurs, the fire shutters 21 to 23 on the first to third floors are closed by a command from the disaster prevention center (shown in FIG. 4), and the vertical holes in which the escalators 11 to 14 are installed are fire-proofed. The fire shutters 21 to 23 are provided with submerged doors 31 to 33, and can enter and exit the fire protection section. The guide light 9 is also lit and the evacuation route is displayed.
Moreover, the boarding machines 61d, 61u-64d, and 64u which interrupt the passenger | crew's 5 boarding are provided in the upper and lower entrances of each escalator 11-14, and it interrupts | blocks as needed and passengers 5 board the boarding. It comes to stop.
Furthermore, congestion detectors 71d, 71u to 74d and 74u for detecting the degree of congestion of the passenger 5 are provided at the entrances and exits, and the congestion detectors 71d and 71u to 74d ahead in the driving direction during the evacuation operation. , 74u are operated, the corresponding escalators 11 to 14 are stopped. Specifically, the congestion degree detectors 71d, 71u to 74d, 74u are constituted by a scale device or the like.
Furthermore, alarm devices 81d, 81u to 84d, 84u each comprising a speaker and an electric display board are provided near the upper and lower entrances of each escalator 11 to 14, and a fire occurs and the operation is switched to evacuation operation. To the passenger 5 in advance.

FIG. 2 is a perspective view of the entrance / exit portions of the second machine escalator 12 and the third machine escalator 13 on the second floor 2. Here, the third unit breaker 63d will be described as an example. The circuit breaker 63d always opens the entrance and exit to allow passengers 5 to get on and off. When switching to the descending operation while the escalator 13 is performing the ascending operation, as shown by the two-dot chain line in FIG. 2, the breaker 63d is swung to block the passenger 5 from entering. After decelerating and slowly stopping the escalator 13 in this blocked state, the breaker 63d is opened to allow passengers 5 to get on and off. In this state, the escalator 13 is switched to the descent operation.
When switching to the ascending operation when the escalator 13 is in the descending operation, the circuit breaker 63d does not operate, and only the circuit breaker 63u operates to shield the entrance / exit for the third unit on the third floor.
A Unit 2 floor 52u is laid at the entrance on the second floor 2 of the Unit 2 escalator 12. A No. 3 floor slab 53d is laid on the No. 3 escalator 13. Congestion level detectors 72u and 73d are incorporated in the floor plates 52u and 53d, respectively.

FIG. 3 is a plan view of the second machine escalator 12 and the third machine escalator 13. The first floor 1 and the second floor 2 on which the Unit 2 escalator 12 is laid are shown. Furthermore, the second floor 2 and the third floor 3 on which the No. 3 escalator 13 is laid are also shown.
FIG. 3 shows an evacuation path, and the vertical holes are partitioned by fire shutters 21 to 23 on each floor 1 to 3. The staircase 28 is partitioned by a fire door 29. A part of the evacuees 6 evacuates using the stairs 28 through the dive door 29a. The other evacuees 6 pass through the second and second floors 32 and 33 and enter the vertical hole compartment, and evacuate from the first floor door 31 using the escalators 11 to 14.

  FIG. 4 is a block diagram showing an electric circuit of a fire control system for a passenger conveyor. Although only the first escalator 11 is shown in the figure, the other escalators 12 to 14 are the same. The escalator 11 is driven by a drive machine 11r and controlled by an escalator control panel 11c. The escalator control panel 11c includes an electric motor control circuit that performs acceleration / deceleration control for slowly stopping / starting the drive machine 11r, a safety circuit, and an operation direction circuit that operates in the direction commanded by the operation panel 11s or the evacuation operation. And a start / stop circuit that operates in response to an operation of the operation panel 11s or an evacuation operation command.

The escalator management panel 90 for performing the fire control operation of the escalators 11 to 14 includes a microcomputer and an evacuation operation operation panel 96.
The microcomputer includes a CPU 91, a ROM 92 in which the program shown in FIG. 5 is stored, an evacuation operation pattern memory 93 in which various evacuation operation patterns set in advance corresponding to the location and scale of the fire are stored, In particular, it comprises a RAM 94 in which data is recorded, and an input / output device 95 that exchanges signals with various external devices.
The evacuation operation operation panel 96 includes an evacuation operation switch 96a capable of instructing each escalator 11 to 14 to perform an evacuation operation, and an evacuation operation pattern switch 96b for selecting an evacuation operation pattern. To be told. The evacuation operation operation panel 96 can give commands to the escalators 11 to 14 in preference to the signal from the disaster prevention center 97.

The output of the congestion degree detector 71 is also transmitted to the input / output device 95. When changing to the evacuation operation, when changing the operation direction of the escalator 11, a signal for operating the circuit breaker 61 is output from the input / output device 95. A signal for voice and electric display of a fire has occurred, and therefore the escalator is evacuated and precautions for evacuation are also output from the input / output device 95 to the alarm device 81. The same applies to Unit 2-4 escalators 12-14.
Furthermore, the disaster prevention center 97 receives operation signals from fire detectors 98 installed at various locations on the premises, and an evacuation route is set in consideration of the location and scale of the fire, and along this evacuation route The guide light 9 is turned on. The state of fire occurrence is also transmitted to the input / output device 95. It has already been mentioned that this fire occurrence situation becomes data for evacuation operation pattern setting.

FIG. 5 is a flowchart showing the operation of the fire control operation system of the passenger conveyor. In this flowchart, it is assumed that a fire has occurred during normal operation of the escalators 11 to 14 and an evacuation operation command has been issued. The first digit of the numerical part of the code represents the escalator machine. When this unit is generally displayed, the variable (n) is used in FIG.
In step S11, the variable n is set to 1, and processing is performed in order from the first machine. If an evacuation operation pattern is designated from the evacuation operation operation panel 96 in step S12, the process proceeds to step S16 assuming that the designated evacuation operation pattern is followed.
If the evacuation operation pattern is not designated from the evacuation operation operation panel 96 in step S12, the process proceeds to step S14 and receives a fire occurrence state from the disaster prevention center 97. In step S15, the evacuation operation pattern memory 93 is read according to the fire state. Select an evacuation operation pattern.
In step S16, switching from the occurrence of a fire to evacuation operation, and as a result, if the driving direction reverses, turn the posture half-turn, and if you arrive at the evacuation floor, get out of the premises immediately. Are displayed on the alarm devices 71-74.

  If the driving direction of the evacuation operation is the same as the driving direction of the escalators 11 to 14 that have been normally operated in the procedure S17, the procedure moves to the procedure S18 and the operation is continued in that direction. In step S17, when the driving direction of the evacuation operation is the reverse of the normal driving until now, the procedure moves to step S19, and the escalators close the circuit breakers 61 to 64 located behind the normal driving direction and close the passenger 5 Block boarding. In step S20, the escalator is decelerated and slowly stopped. In step S21, the closed circuit breakers 61 to 64 are opened, and in step S22, the escalators 11 to 14 are slowly activated.

  In step 23, the output α of the congestion degree detectors 71 to 74 positioned in the driving direction of the escalators 11 to 14 switched to the evacuation operation is read. When the output α exceeds the specified value Po in step S24, that is, when the exit is abnormally crowded, the process proceeds to step S25, and only the escalator that is abnormally crowded is decelerated and slowly stopped, and then the procedure proceeds to step S28. Move. When the output α is less than the specified value Po in step S24, that is, when the exit is not congested, the process proceeds to step S26. In step S26 and step S27, when the target escalator is operated, the evacuation operation is continued as it is, and when it is stopped, the evacuation operation is started by starting slowly.

If the evacuation operation command is still issued from at least one of the disaster prevention center 97 and the evacuation operation operation panel 96 in the procedure S28, the procedure for the escalator of the next unit is performed via the procedure S29 and the procedure S30. The processes from S16 to S28 are repeated.
When the above processing is performed up to the escalator of the last car in step S29, the process returns to step S12, and the escalators 11 to 14 are evacuated again according to the evacuation operation pattern. Accordingly, the evacuation operation is performed by changing the evacuation operation that has already been set in response to the subsequent change in the fire situation.
If there is a command for canceling the evacuation operation from both the disaster prevention center 97 and the evacuation operation operation panel 96 in step S28, the process proceeds to step S31. The evacuation operation cancellation is notified by the notification devices 81 to 84 of all the units. In step S32, the escalators 11 to 14 of all the units are decelerated and slowly stopped. In step S33, normal operation is started after the operation start operation by the operation panels 11s to 14s, and the process is terminated.

According to the first embodiment, when a fire occurs on the premises, the evacuation operation including the operation direction is set in response to the fire situation, and the operation direction is the same as the direction in which the operation has been performed so far. In this case, the evacuation operation is continued by continuing the operation, and in the case of the reverse direction, the vehicle is decelerated and slowly stopped and then slowly started in the reverse direction to perform the evacuation operation.
For this reason, the escalators 11-14 can be utilized as an evacuation means at the time of a fire, the concentration of the evacuees 6 on the stairs can be reduced, and prompt evacuation is possible.

In addition, since the evacuation operation that has already been set is changed in response to a subsequent change in the fire situation, the evacuation operation can be performed in accordance with the transition of the fire.
Further, when the escalators 11 to 14 are provided with breakers 61 to 64 that block the passenger 5 from entering and exit, and the driving direction of the evacuation operation is opposite to the driving direction at that time, the breakers 61 to 64 are provided. After slowing down and slowly stopping in the state where the passenger 5 is blocked, the breakers 61 to 64 are opened and slowly started in the reverse direction to start the evacuation operation. Can be blocked.

Furthermore, when the congestion degree detectors 71 to 74 are provided at the entrances and exits of the escalators 11 to 14 and the congestion degree detectors 71 to 74 provided at the exits in front of the driving direction have a congestion degree exceeding the specified value Po, the escalator Since 11 to 14 are stopped, it is possible to avoid the concentration of passengers 5 at the exit.
Furthermore, since the alarms 81 to 84 are provided, it is possible to notify the passenger in advance that a fire has occurred and the operation can be switched to the evacuation operation, and unnecessary confusion can be avoided.
Furthermore, since the escalators 11 to 14 are slowly stopped and started slowly, the passenger 5 is not destabilized.
In the first embodiment, the escalator has been described. However, it may be a moving sidewalk.

BRIEF DESCRIPTION OF THE DRAWINGS The longitudinal cross-sectional view of the 3-story building which shows the side surface of the escalator which is a passenger conveyor in Embodiment 1 of this invention. The perspective view of the entrance / exit part of the escalator which is a passenger conveyor in Embodiment 1 of this invention. The top view of the escalator which is a passenger conveyor in Embodiment 1 of this invention. The block diagram which shows the electric circuit of the fire control system of the passenger conveyor in Embodiment 1 of this invention. The flowchart which shows operation | movement of the fire control operation system of the passenger conveyor in Embodiment 1 of this invention.

Explanation of symbols

1 1st floor, 2 2nd floor, 3 3rd floor, 9 guide light, 11 Unit 1 operation panel, 12 Unit 2 operation panel, 13 Unit 3 operation panel, 14 Unit 4 operation panel, 11s Unit 1 operation panel, 12s Unit 2 operation Panel, 13s Unit 3 operation panel, 14s Unit 4 operation panel, 21 1st floor fire shutter, 22 2nd floor fire shutter, 23 3rd floor fire shutter, 28 stairs, 29 fire door, 31 1st floor door, 32 2nd floor door, 32 3rd floor submersible, 41 1st floor fence, 42 2nd floor fence, 43 3rd floor fence, 52 Unit 2 floor plate, 53 Unit 3 floor plate, 61 Unit 1 breaker, 62 Unit 2 breaker, 63 Unit 3 breaker, 64 Unit 4 Breaker, 71 Unit 1 congestion detector, 72 Unit 2 congestion detector, 73 Unit 3 congestion detector, 74 Unit 4 congestion detector, 71 Unit 1 alarm, 72 Unit 2 alarm, 73 Unit 3 Alarm, 74 4 Unit alarm.

Claims (5)

  In a fire control operation system of a passenger conveyor that switches from normal operation to evacuation operation when a fire occurs on the premises and conveys the resident on the premises to evacuate, the evacuation operation including the operation direction is performed according to the fire situation. When the evacuation operation setting means to be set and the operation direction of the evacuation operation set by the evacuation operation setting means is the same as the operation direction at that time, the evacuation operation is performed in the state where the operation is continued as it is. In the case of the reverse direction, a fire control operation system for a passenger conveyor comprising: an evacuation operation switching means for performing the evacuation operation by slowing and slowing down in the reverse direction and then slowly starting in the reverse direction.   The evacuation operation setting means changes the setting of the evacuation operation that has already been set in response to a subsequent change in the fire situation, and the evacuation operation switching means changes the evacuation operation that has been changed by the evacuation operation setting means. The fire control operation system for a passenger conveyor according to claim 1.   When the passenger conveyor entrance and exit is provided with a blocking means for blocking passenger entry, and the evacuation operation switching means is set in the direction of evacuation operation set by the evacuation operation setting means in the opposite direction to the above operation direction at that time 2. The evacuation operation is started according to claim 1, wherein after the passenger is boarded by the blocking means, the vehicle is decelerated and slowly stopped, and then the blocking means is opened to slowly start in the reverse direction. Fire control system for passenger conveyors.   When the congestion degree detecting means for detecting the degree of congestion of passengers provided at the entrance / exit of the passenger conveyor and the congestion degree detecting means provided at the entrance / exit in front of the driving direction detect a degree of congestion of a predetermined value or more, The fire control operation system for a passenger conveyor according to claim 1, further comprising a safety device for stopping the passenger conveyor. The fire control operation system for a passenger conveyor according to claim 1, further comprising a notification means for informing a passenger in advance that a switch is made to the evacuation operation set by the evacuation operation setting means when a fire occurs.

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