JP2018144963A - Emergency elevator without machine room, and operation method of emergency elevator without machine room - Google Patents

Abstract

PROBLEM TO BE SOLVED: To continue a fire fighting operation without affecting an operation of an elevator, even in the case where a landing inspection device is flooded by water discharge and the like during fire fighting.SOLUTION: An emergency elevator without machine room includes: a main motor 8 for driving a main sheave 6 installed on a bottom part side of a hoistway 4 of a building in which the elevator is installed; a sub motor 12 for driving a sub sheave 10 installed in the hoistway 4 further upward than an uppermost floor level of the building; a main motor control part 20 for operating and controlling the main motor 8; and a sub motor control part 22 for operating and controlling the sub motor 12. The main motor control part 20 executes an operation of an elevator car 13 by using the main motor 8 during a normal operation. The sub motor control part 22 stops the main motor 20 and executes the operation of the elevator car 13 only by the sub motor 12 during an emergency operation.SELECTED DRAWING: Figure 1

Description

  Embodiments described herein relate generally to an emergency machine roomless elevator and an operation method of the emergency machine roomless elevator.

  Usually, in buildings over a predetermined height, installation of an emergency elevator is obligatory. The emergency elevator is normally used as a general elevator, but is used for fire fighting activities when a fire occurs. For this reason, various regulations are defined in the car size, standards, and the like. In particular, conventional emergency elevators have been recognized only when having a machine room. By installing a control panel in the machine room on the top floor of the building, the control panel is prevented from getting wet from water discharge during fire extinguishing, and the electronic equipment inside the control panel is protected.

  Recently, a partial revision of the Building Standard Law Enforcement Ordinance has made it possible to apply an elevator that does not have a machine room (hereinafter referred to as a “machine room-less elevator”) as an emergency elevator.

JP2012-180136A

  By the way, there is an elevator system in which a motor for a hoisting machine is installed at the lowermost part of a hoistway in a machine roomless elevator.

  However, when a machine roomless elevator is used as an emergency elevator, there is a possibility that the motor for the hoist installed at the bottom of the hoistway gets wet by water discharge and causes a failure in fire fighting activities. There is.

  In view of the above circumstances, the embodiment of the present invention continues the emergency operation without affecting the operation of the elevator even when the hoisting motor is submerged by water discharge or the like during fire fighting activities. It is an object of the present invention to provide an emergency machine roomless elevator that can perform the operation and an operation method of the emergency machine roomless elevator.

  A first aspect for achieving the above object is that a main motor that drives a main sheave installed on the bottom side of a hoistway of a building in which an elevator is installed, and elevating above the top floor level of the building A sub motor that drives a sub sheave installed in the road, a main motor control unit that controls the operation of the main motor, and a sub motor control unit that controls the operation of the sub motor, and the main motor control unit An emergency machine roomless elevator that performs a car operation using the main motor, and the sub motor control unit stops the main motor and performs a car operation by the sub motor in an emergency operation. is there.

  The second mode is a main motor that drives a main sheave installed on the bottom side of a hoistway of a building in which an elevator is installed, and a sub sheave installed in a hoistway above the top floor level of the building A sub motor that drives the main motor, a main motor control unit that controls the operation of the main motor, a sub motor control unit that controls the operation of the sub motor, and a hoistway bottom in the vicinity of the main motor or in the vicinity of the main motor control unit The main motor control unit performs the operation of the car using the main motor during normal operation, and the sub motor control unit performs submersion by the submersion sensor during emergency operation. Until it is detected, the emergency operation by the main motor is executed, and when the inundation sensor detects inundation, Serial and was stopped the main motor is very for the machine room less elevator to move to emergency operation by the sub motor.

  A third mode is a main motor that drives a main sheave installed on the bottom side of a hoistway of a building in which an elevator is installed, and a sub sheave installed in a hoistway above the top floor level of the building A sub motor for driving the main motor, a main motor control unit for controlling the operation of the main motor, and a sub motor control unit for controlling the sub motor. The main motor control unit and the sub motor control unit are configured to operate the main motor during normal operation. An emergency machine room that uses the motor and the sub motor at the same time to execute the operation of the car, and that the sub motor control unit stops the main motor and performs the operation of the car only by the sub motor during emergency operation. It is a lesser elevator.

  A fourth mode is a main motor that drives a main sheave installed on the bottom side of a hoistway of a building where an elevator is installed, and a sub sheave installed in a hoistway above the top floor level of the building A sub motor that drives the main motor, a main motor control unit that controls the operation of the main motor, a sub motor control unit that controls the sub motor, and a hoistway bottom in the vicinity of the main motor or in the vicinity of the main motor control unit. The main motor control unit and the sub motor control unit execute the operation of the car using the main motor and the sub motor simultaneously during normal operation, and the sub motor control unit During operation, emergency operation by the main motor and sub motor is performed until the inundation sensor detects inundation. Run, when flooded by the water immersion sensor is detected, the main motor is stopped, a emergency machine room less elevator to move to emergency operation of the sub motor only.

The block diagram which shows the structure of the emergency machine roomless elevator which concerns on embodiment. The flowchart explaining operation | movement of the emergency machine roomless elevator which concerns on 1st Embodiment. The flowchart explaining operation | movement of the emergency machine roomless elevator which concerns on 2nd Embodiment. The flowchart explaining operation | movement of the emergency machine roomless elevator which concerns on 3rd Embodiment. The flowchart explaining operation | movement of the emergency machine roomless elevator which concerns on 4th Embodiment.

<First Embodiment>
FIG. 1 is a block diagram showing the configuration of an emergency machine roomless elevator according to the embodiment, and FIG. 2 is a flowchart for explaining the operation of the first embodiment. The configuration shown in FIG. 1 is common to the first to fourth embodiments described below.

  The emergency machine roomless elevator 2 according to the embodiment includes a main sheave 6 installed on the bottom side of the hoistway 4 of the building where the elevator is installed, a main motor 8 that drives the main sheave 6, and the top floor of the building A sub sheave 10 installed in the hoistway 4 above the floor level and a sub motor 12 for driving the sub sheave 10 are provided. A rope 14 that pulls the car 13 is suspended between the main sheave 6 and the sub sheave 10, and a counterweight (C / W) 15 is attached to the other end of the rope 14. The emergency machine roomless elevator 2 performs normal operation of the car 13 by the main motor 8 (first embodiment, second embodiment). The emergency machine roomless elevator 2 performs normal operation of the car 13 in conjunction with the main motor 8 and the sub motor 12 (third embodiment, fourth embodiment). On the other hand, the emergency machine roomless elevator 2 disconnects the main motor 8 and executes the emergency operation of the car 13 only by the sub motor 12 in an emergency.

  The operation of the main motor 8 is controlled by the main motor control unit 20. The main motor control unit 20 is positioned as an operation control unit of the main motor 8 during normal operation where no fire or the like has occurred. For example, the main motor control unit 20 is installed on the wall surface of the hoistway 4 near the main motor 8.

  The sub motor 12 is controlled by the sub motor control unit 22. The sub motor control unit 22 is positioned as an emergency operation control unit, and includes an operation control unit 22a and a signal input unit 22b as shown in FIG.

  The operation control unit 22a outputs an operation signal for the main motor control unit 20, a switching signal for the switching unit 24, an emergency operation speed command for the sub motor 12, and the like.

  The signal input unit 22b is connected to the emergency operation signal (fire detection signal) of the building, the sprinkler signal of the building, the flood signal from the inundation sensors 25a and 25b installed on the bottom side of the hoistway, the main motor 8 and the main motor control unit 20. An abnormality detection signal from the installed abnormality detection sensors 26a and 26b, a return signal from a return switch 28 provided in the car, and the like are input.

  The sub motor control unit 22 controls the operation of the car by interlocking the main motor 8 and the sub motor 12 during emergency operation. In addition, when inundation to the bottom of the hoistway is detected by the inundation sensors 25a and 25b and a flood signal is output, a switching signal is output to the switching unit 24, and the main sheave 6 and the main motor 8 are disconnected. The car 13 is operated only by the sub motor 12.

  Next, the operation of the first embodiment will be described based on the flowchart of FIG.

  During normal times when no fire or the like has occurred, normal operation by the main motor 8 is executed (ST2). During normal operation, the sub motor control unit 22 monitors whether an emergency operation signal is input. When a fire occurs and an emergency operation signal is input to the signal input unit 22b of the sub motor control unit 22 (ST4 YES), an emergency operation by the main motor 8 is executed (ST6). In emergency driving, the driving speed of the car is limited. In addition, the hall call becomes invalid during the primary fire fighting operation. In secondary fire-fighting operation, the detection of door closing at the landing is invalid, and the vehicle can run even when the car 13 or the door at the landing is not closed.

  During the emergency operation, the sub motor control unit 22 monitors the input of the flood signal from the flood sensors 25a and 25b. As a result of the fire extinguishing activity, water used for fire extinguishing is accumulated at the bottom of the hoistway. When the water level is higher than a predetermined level and one of the inundation sensors 25a and 25b is turned on, the flood signal is input to the signal input unit 22b of the sub motor control unit 22. (ST8 YES). As a result, a switching signal is output from the operation control unit 22a to the switching unit 24. The switching unit 24 stops the output of the operation speed command to the main motor 8 and turns off the main motor 8 in the ON state. Further, the sub motor 12 is turned on and an emergency operation speed command is output to the sub motor 12. Thereby, the emergency operation only by the sub motor 12 is started (ST10).

  When the fire extinguishing operation is finished and the return switch 28 in the car 13 is operated (ST12 YES), the operation returns to the normal operation (ST2) by the main motor 8.

  As described above, according to the first embodiment, even when the main motor 8 is submerged by water discharge or the like during fire extinguishing activities, the emergency operation by the sub motor 12 is continued without affecting the operation of the elevator. Is possible.

Second Embodiment
FIG. 3 is a flowchart for explaining the operation of the second embodiment. The basic configuration of the emergency machine roomless elevator according to the second embodiment is the same as that shown in FIG. 1 and will be described with reference to FIG.

  As shown in FIG. 3, the sub motor control unit 22 monitors the reception of the sprinkler signal in step ST14. When a fire occurs and a sprinkler signal is received by the signal input unit 22b, a switching signal is output from the operation control unit 22a to the switching unit 24. The switching unit 24 stops outputting the normal operation speed command to the main motor 8 and turns off the main motor 8 in the ON state. Further, the sub motor 12 is turned on and an emergency operation speed command is output to the sub motor 12. Thereby, the emergency operation only by the sub motor 12 is started (ST10).

When the fire extinguishing operation is finished and the return switch 28 in the car 13 is operated (ST12 YES), the operation returns to the normal operation (ST2) by the main motor 8.
Thereby, the emergency operation only by the sub motor 12 is started (ST10).

  As described above, according to the second embodiment, when the sprinkler is activated, the main motor 8 can be disconnected and the emergency operation by the sub motor 12 can be continued. Therefore, the switching process from the normal operation to the emergency operation can be performed quickly and accurately. Can be done.

<Third Embodiment>
FIG. 4 is a flowchart for explaining the operation of the third embodiment. The basic configuration of the emergency machine roomless elevator according to the third embodiment is the same as that shown in FIG. 1 and will be described with reference to FIG.

  In the first embodiment and the second embodiment, the operation by the main motor 8 is executed during the normal operation. During an emergency operation, the main motor 8 performs an emergency operation when the main motor 8 is not flooded or the main motor 8 is not likely to get wet. Driving is in progress.

  In the third embodiment, the elevator is operated while being synchronized by both the main motor 8 and the sub motor 12 even during normal operation. Further, during emergency operation, emergency operation is performed by both the main motor 8 and the sub motor 12 when there is no possibility of the main motor 8 being submerged, and the main motor 8 is disconnected when there is a possibility of submergence or getting wet. Only the operation is executed.

  The operation will be described with reference to the flowchart of FIG. During normal times when no fire or the like has occurred, normal operation is executed by the main motor 8 and the sub motor 12 (ST22). During normal operation, the sub motor control unit 22 monitors whether an emergency operation signal is input. When a fire occurs and an emergency operation signal is input to the signal input unit 22b of the sub motor control unit 22 (ST24 YES), emergency operation by the main motor 8 and the sub motor 12 is executed (ST26).

  During the emergency operation, the sub motor control unit 22 monitors the input of the flood signal from the flood sensors 25a and 25b. As a result of the fire extinguishing activity, water used for fire extinguishing is accumulated at the bottom of the hoistway. When the water level is higher than a predetermined level and one of the inundation sensors 25a and 25b is turned on, the flood signal is input to the signal input unit 22b of the sub motor control unit 22. (ST28 YES). As a result, a switching signal is output from the operation control unit 22a to the switching unit 24. The switching unit 24 stops outputting the normal operation speed command to the main motor 8. Further, the main motor 8 in the ON state is turned off. Thereby, the emergency operation only by the sub motor 12 is started (ST30).

  When the fire-extinguishing activity is finished and the return switch 28 in the car 13 is operated (ST32 YES), the main motor 8 and the sub motor 12 return to normal operation (ST22).

  As described above, according to the third embodiment, the emergency operation similar to the normal operation can be executed until the main motor 8 is submerged. In addition, since the car 13 is operated using both the main motor 8 and the sub motor 12 even during normal operation, the capacity (power) of the main motor 8 can be configured to be smaller than that of the normal motor. Can be adopted, and the installation space can be reduced.

<Fourth embodiment>
FIG. 5 is a flowchart for explaining the operation of the fourth embodiment. The basic configuration of the emergency machine roomless elevator according to the third embodiment is the same as that shown in FIG. 1 and will be described with reference to FIG. Also, the same processing steps as those in the third embodiment shown in FIG.

  In the fourth embodiment, an abnormality detection signal is detected from the abnormality detection sensor 26a that detects an abnormality of the main motor 8 on the bottom side of the hoistway and the abnormality detection sensor 26b that detects an abnormality of the main motor control unit 20, and there is no abnormality. It is configured to resume normal operation only in some cases.

  The abnormality detection sensor 26a of the main motor 8 can be composed of an overcurrent detection sensor of the main motor 8, an insulation meter that detects whether the insulation state is normal, or the like. The abnormality detection sensor 26b of the main motor control unit detects whether or not normal output to the main motor 8 is performed, and includes a failure diagnosis function.

  As shown in the flowchart of FIG. 5, after receiving the return signal (ST34 YES), the signal input unit 22b of the sub motor control unit 22 monitors whether there is an abnormality detection signal. When an abnormality detection signal is output from either of the abnormality detection sensors 26a and 26b (ST36 YES), the operation shifts to the failure diagnosis mode without moving to the normal operation (ST38). In the failure diagnosis mode, automatic failure diagnosis by the remote monitoring device is executed. Alternatively, the central management room or the disaster prevention center is notified that an abnormality has been detected, and a fault diagnosis is performed by a specialized maintenance staff.

  As described above, according to the fourth embodiment, the same effect as that of the third embodiment is obtained, and only when the main motor 8 and the main motor control unit 20 are normal, the normal operation is restored. The return from the emergency operation to the normal operation can be performed more reliably and safely.

  As mentioned above, although some embodiment of this invention was described, these embodiment is shown as an example and is not intending limiting the range of invention. These novel embodiments can be implemented in various other forms, and various omissions, replacements, and changes can be made without departing from the scope of the invention. These embodiments and modifications thereof are included in the scope and gist of the invention, and are included in the invention described in the claims and the equivalents thereof.

  2: emergency machine roomless elevator, 4: hoistway, 6: main sheave, 8: main motor, 10: sub sheave, 12: sub motor, 13: passenger car, 14: rope, 15: counterweight (C / W) , 20: main motor control unit, 22: sub motor control unit, 22a: operation control unit, 22b: signal input unit, 24: switching unit, 25a, 25b: water immersion sensor, 26a, 26b: abnormality detection sensor, 28: return switch .

Claims (8)

A main motor that drives a main sheave installed on the bottom side of the hoistway of the building where the elevator is installed;
A sub motor for driving a sub sheave installed in a hoistway above the top floor level of the building;
A main motor controller for controlling the operation of the main motor;
A sub motor control unit that controls the operation of the sub motor,
The main motor control unit performs a car operation using the main motor during normal operation,
In the emergency operation, the sub motor control unit stops the main motor and executes the operation of the car by the sub motor during emergency operation. A main motor that drives a main sheave installed on the bottom side of the hoistway of the building where the elevator is installed;
A sub motor for driving a sub sheave installed in a hoistway above the top floor level of the building;
A main motor controller for controlling the operation of the main motor;
A sub motor control unit for controlling the operation of the sub motor;
A water immersion sensor installed on the bottom of the hoistway in the vicinity of the main motor or in the vicinity of the main motor control unit,
The main motor control unit performs a car operation using the main motor during normal operation,
In an emergency operation, the sub motor control unit executes an emergency operation by the main motor until the inundation is detected by the inundation sensor, and stops the main motor if inundation is detected by the inundation sensor. An emergency machine room-less elevator, which shifts to emergency operation by the sub motor. A main motor that drives a main sheave installed on the bottom side of the hoistway of the building where the elevator is installed;
A sub motor for driving a sub sheave installed in a hoistway above the top floor level of the building;
A main motor controller for controlling the operation of the main motor;
A sub motor control unit for controlling the sub motor,
The main motor control unit and the sub motor control unit execute the operation of the car using the main motor and the sub motor at the same time during normal operation,
In the emergency machine roomless elevator, the sub motor control unit stops the main motor during emergency operation and executes the operation of the car only by the sub motor. A main motor that drives a main sheave installed on the bottom side of the hoistway of the building where the elevator is installed;
A sub motor for driving a sub sheave installed in a hoistway above the top floor level of the building;
A main motor controller for controlling the operation of the main motor;
A sub motor control unit for controlling the sub motor;
A water immersion sensor installed on the bottom of the hoistway in the vicinity of the main motor or in the vicinity of the main motor control unit,
The main motor control unit and the sub motor control unit execute the operation of the car using the main motor and the sub motor at the same time during normal operation,
The sub motor control unit performs emergency operation by the main motor and the sub motor until the inundation is detected by the inundation sensor at the time of emergency operation, and when the inundation sensor is detected, the main motor is turned on. An emergency machine room-less elevator, which is stopped and shifts to an emergency operation using only the sub motor.   The sub-motor control unit monitors the input of a building fire detection signal or a sprinkler signal, and shifts from normal operation to emergency operation when any signal is input. The emergency machine room-less elevator according to claim 1. An abnormality detection sensor is installed in the main motor or the main motor control unit,
The sub motor control unit shifts to a failure diagnosis mode without shifting to normal operation when an abnormality is detected by any of the abnormality detection sensors when returning from emergency operation to normal operation. The emergency machine roomless elevator according to any one of claims 1 to 5. A main motor that drives a main sheave installed on the bottom side of the hoistway of the building where the elevator is installed, and a submotor that drives a sub sheave installed in the hoistway above the top floor level of the building Prepared,
During normal operation, the main motor and the sub motor are used at the same time to run the car,
A method of operating an emergency machine room-less elevator, wherein the main motor is stopped during emergency operation, and the car is operated only by the sub motor. A main motor that drives a main sheave installed on the bottom side of the hoistway of the building where the elevator is installed, a submotor that drives a subsieve installed in the hoistway above the top floor level of the building, A flood sensor installed on the bottom of the hoistway in the vicinity of the main motor or in the vicinity of the main motor control unit for controlling the main motor,
During emergency operation, the main motor and the sub motor are used for emergency operation until inundation at the bottom of the hoistway is detected by the inundation sensor, and when the inundation sensor detects inundation, An operation method of an emergency machine room-less elevator, wherein the motor is stopped and the operation is shifted to an emergency operation using only the sub motor.

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