JP2005020879A - Uninterruptible system and method using emergency generator - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To use an output of an emergency generator as power for driving an elevator, a motor pool and a drive unit when a fire does not occur at power interruption. <P>SOLUTION: A fire detector outputs a fire detection output, an emergency generating set is started when a power interruption detector outputs a power interruption detection output, the output from the emergency generator is fed to a fire extinguisher as electric power, the power interruption detector outputs the power interruption detection output, the emergency generating set is started, and the output from the emergency generating set is fed to a power requiring facility as electric power when the fire detector does not output the fire detection output. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to an uninterruptible power system using an emergency generator that can effectively use an emergency generator installed in a building such as a building.
[0002]
[Prior art]
Digestion equipment such as buildings (for example, sprinklers) may not operate due to a power failure. In order to avoid such a situation, it is usually required by the Fire Service Act to install an emergency generator in the building. This emergency generator is started by a power failure detection device that detects a power failure, and can always secure a power source necessary for digestion equipment.
[0003]
[Problems to be solved by the invention]
By the way, the above-mentioned emergency generator operates only during a power failure and only supplies power to the digestion facility. However, looking at the reality, it is not always a power outage, that is, a fire occurrence state. When there is no fire, the emergency generator is idle.
[0004]
On the other hand, there are many places that require backup power during a power outage. For example, in hospitals, electric power is required for operating rooms, dialysis machines, etc., and in buildings, electric power is also required in elevators and multilevel parking lots.
[0005]
Also, backup power for computers is particularly important. For computers, a backup power supply is usually laid, but it is very expensive. This is because a backup power supply for a computer is not installed in the building in advance and is often specially ordered.
[0006]
Therefore, the present invention focuses on the emergency generator described above. In other words, the capacity of the emergency generator is calculated by a calculation formula stipulated in the Fire Service Law, and its output is determined, but it is usually designed to have some margin. The present invention makes use of this point, and an uninterruptible system using an emergency generator that can make use of the output of an emergency generator in many ways when a fire does not occur during a power failure. The purpose is to provide.
[0007]
In addition, the present invention provides an uninterruptible system using an emergency generator that can utilize the output of an emergency generator as a backup for a computer system when a fire does not occur during a power failure. Objective.
[0008]
It is another object of the present invention to provide an uninterruptible system using an emergency generator that can utilize the output of an emergency generator as an uninterruptible outlet output when no fire occurs during a power failure. And
[0009]
In addition, the present invention provides an uninterruptible power supply using an emergency generator that can use the output of an emergency generator as a power source for an elevator drive or a parking lot drive device when a fire does not occur during a power failure. The purpose is to provide a system.
[0010]
In addition, as a lightning countermeasure, the present invention enables emergency generators to use the output of an emergency generator as a power source for important facilities (computers, etc.) when important facilities (computers, etc.) are disconnected from the commercial power line. The purpose is to provide an uninterruptible power system utilizing the machine.
[0011]
[Means for Solving the Problems]
The present invention includes a power failure detector that detects whether or not a commercial power source is in a power failure state, a fire detector that detects a fire, an emergency power generation device, a digestion facility, a power requirement facility,
When the fire detector detects a fire, it normally supplies the power of the commercial power supply to the digestion facility. When a power failure is detected at this time, the emergency power generator is activated. A first setting means for supplying the output from the emergency power generator as power to the digestion facility, the power failure detector detects a power failure, and the fire detector does not detect a fire In the state, the emergency power generator is activated, and second setting means is provided for supplying the output from the emergency power generator as power to the power-necessary equipment. The power-requiring device is a computer and / or an elevator.
[0012]
DETAILED DESCRIPTION OF THE INVENTION
Embodiments of the present invention will be described below with reference to the drawings.
[0013]
FIG. 1 shows a first embodiment of a system according to the present invention. 11 is a power failure detector. When the commercial power supply 13 is in a power failure state, a power failure detection output is obtained. The fire detector 14 can obtain a fire detection output. The fire detectors 14 are arranged at a plurality of locations such as buildings and are sensitive to smoke, heat, and the like. The power failure detection output from the power failure detector 11 and the fire detection output from the fire detector 14 are input to the logic determination circuit 21 constituting the power supply state setting means 20.
[0014]
The emergency generator 16 generates power using, for example, liquid fuel in the fuel tank 17 when a power failure occurs, and can be operated for 24 hours, for example. The activation signal to the emergency generator 16 is given from the logic determination circuit 21, for example. The activation signal may be given to the emergency generator 16 directly from the power failure detector 11.
[0015]
The output line from the commercial power supply 13 and the output line from the emergency generator 16 are connected to the switching circuit 22. The switching circuit 22 is controlled by a control signal from the logic determination circuit 21. The switching circuit 22 can select the output from the commercial power supply 13 or the output from the emergency generator 16 and supply it to the digestion facility 31 or the power requirement facility 41 (for example, a computer, an elevator, a TV device, etc.). .
[0016]
In the above system, when the fire detector 14 outputs a fire detection output, the output of the commercial power supply 13 is supplied as power to the digestion facility 31. At this time, the power failure detector 11 outputs a power failure detection output. When the emergency power generation device 16 is activated, the output from the emergency power generation device 16 can be supplied to the digestion facility 31 as electric power.
[0017]
When the power failure detector 11 outputs the power failure detection output and the fire detector 14 does not output the fire detection output, the emergency power generator 16 is activated and the emergency power supply 41 is used for emergency use. The output from the power generator 16 can be supplied as electric power.
[0018]
FIG. 2 is a flowchart for explaining an operation example of the system.
[0019]
That is, when there is no power failure detection signal (step S1) and there is a fire detection signal (step S2), power supply from the commercial power supply 13 to the digestion facility 31 (step S3) is realized. When there is no fire detection output signal, the power from the commercial power supply 13 is supplied to the power-required equipment (step S4).
[0020]
Here, when the power failure detection signal is output, the emergency generator is activated (step S5), and when there is a fire detection signal (step S6), power is supplied from the emergency generator 16 to the digestion facility 31. (Step S7) is realized. When there is no fire detection output signal, the power from the emergency generator 16 is supplied to the power-necessary equipment 41 (step S8). Here, when the fire detection signal is generated, the power supply from the emergency generator 16 to the digestion facility 31 is preferentially realized (steps S6 and S7).
[0021]
FIG. 3 specifically shows the inside of the setting means 20 for setting the power supply state in hardware. The switch SW1 normally selects the commercial power supply 13, but when the emergency generator 16 is activated, the emergency switch 16 is used based on the rated output detection signal indicating that the emergency generator 16 is operating normally. The generator 16 side is selected. The output of the switch SW1 is supplied to the switches SW2 and SW3 that take on and off states complementarily. The switch SW2 can supply input power to the digestion facility 31, and the switch SW3 can supply input power to the power required facility 41. ON / OFF of the switches SW2 and SW3 is controlled by an output from the fire detector 14. When there is a fire detection output, the switch SW2 is turned on and the switch SW3 is turned off. When there is no fire detection output, the switch SW2 is turned off and the switch SW3 is turned on.
[0022]
The present invention is not limited to the above embodiment. The timing for starting the emergency generator 16 is not limited to a power failure. For example, when a lightning strike is near based on a signal from the lightning prediction device 51, the power of the power required equipment 41 can be secured by switching to the same state as at the time of a power failure. For example, when the thunder is within 30 km, an e-mail is sent by weather news or the like, and the received signal may be used as a trigger. Of course, manual operation may be used.
[0023]
If it does in this way, it will prevent that a lightning strike will energize the equipment system of a facility via a commercial power supply system. Thereby, the important equipment of a facility can be protected from lightning. This is especially effective when the manager of the facility is absent or absent.
[0024]
Examples of the power-required equipment 41 include a main computer 411, an elevator 412 in a high-rise building, and a vehicle moving device for a multistory parking lot. In hospitals, there are operating rooms and dialysis machines.
[0025]
In this system, an uninterruptible outlet 42 may be further connected. At least the output of the switch SW3 is connected to the uninterruptible outlet 42. Uninterruptible power outlets 42 may be provided on the emergency stairs of each floor. In the event of a power failure, by connecting a TV, radio, or lighting to the uninterruptible power outlet 42, it is possible to ensure power even if the commercial power supply is interrupted. The uninterruptible outlet 42 may be configured to secure power from the output unit of the switch SW2.
[0026]
FIG. 4 shows the relationship between the elevator 412 and the computer 411. This is a device for effectively using the power capacity of the emergency generator 16. The power supply line 422 is connected to the power supply terminal of the elevator 412 via the fuse 423 and the switch SW11, and is connected to the computer 411 via the fuse 424, the switch 425, the Scott transformer 426, and the switch SW12. When the emergency generator 16 is activated and the elevator 412 is in use at the time of a power failure or lightning (lightning strike), the current flows to the power supply line. Therefore, the operation state of the elevator 412 is detected by the detection coil 427. Can do. When the elevator 412 is in use, the switch 425 is turned off so that the main power supply of the computer 411 is turned off. The computer 411 can operate with a relatively small amount of power and includes a backup power supply, so that a temporary power outage (about 1 second for an instant) can be tolerated.
[0027]
When the elevator 412 or the motor of the multilevel parking lot is started, starting power is required at the start. The starting power is usually about three times the rating, and this is necessary temporarily (about 1 second). After starting, it will be rated. After the elevator and parking lot motors have shifted to rated operation mode, there is a margin for the deduction between the power at the time of startup and the power at the time of rated operation. Is fully possible.
[0028]
【The invention's effect】
As described above, according to the present invention, when a fire does not occur at the time of a power failure, the output of the emergency generator can be used as a power source for an elevator drive or a parking lot drive device. Further, according to the present invention, as a countermeasure against lightning, when an important facility (such as a computer) is disconnected from a commercial power line, the output of the emergency generator can be used as a power source for the important facility (such as a computer).
[Brief description of the drawings]
FIG. 1 is a block diagram showing a basic configuration of the present invention.
FIG. 2 is a flowchart shown for explaining the basic operation of the present invention.
FIG. 3 is an explanatory diagram showing the configuration of the system of the present invention more specifically.
FIG. 4 is a diagram shown for explaining the mutual relationship among a plurality of power-necessary facilities.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 11 ... Power failure detector, 13 ... Commercial power supply, 14 ... Fire detector, 16 ... Emergency generator, 20 ... Electric power supply state setting means, 31 ... Digestion equipment, 41 ... Electric power required equipment

Claims (4)

A power failure detector for obtaining a power failure detection output indicating that the commercial power supply is in a power failure state;
A fire detector capable of obtaining a fire detection output;
An emergency power generator,
Digestion equipment,
With power requirements,
When the fire detector outputs the fire detection output, the commercial power supply output is supplied to the digestion facility as electric power.At this time, when the power failure detector outputs a power failure detection output, A first setting means for activating an emergency power generator and supplying the digestion facility with output from the emergency power generator as power;
When the power failure detector outputs a power failure detection output, the emergency power generation device is activated, and in the state where the fire detector does not output a fire detection output, An uninterruptible system using an emergency generator, comprising: second setting means for supplying output from the emergency generator as electric power. The uninterruptible power system using an emergency generator according to claim 1, wherein the power-requiring device is a computer and / or an elevator. Further, based on the information from the lightning prediction device, the emergency power generation device is activated, and the emergency power generation is performed on the power-required equipment in a state where the fire detector does not output a fire detection output. The uninterruptible power system using an emergency generator according to claim 1, further comprising means for supplying output from the apparatus as electric power. When the fire detector outputs a fire detection output and the power failure detector outputs a power failure detection output, the emergency power generator is activated and the output from the emergency power generator is supplied to the digestion facility as power. And
When the power failure detector outputs a power failure detection output and activates the emergency power generator, and when the fire detector does not output a fire detection output, the emergency power generation An uninterruptible method using an emergency generator that supplies power from the equipment as power.

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