JP4441564B2 - Water supply management system - Google Patents

Description

  The present invention relates to a water supply management system, and in particular, an emergency shut-off valve is provided in a water source at the time of an earthquake, that is, a distribution pipe of a water receiving tank and / or an elevated water tank, and the emergency shut-off valve senses a shake exceeding a certain seismic intensity. In addition to shutting off with the output signal of the seismic device that outputs the signal, and also shutting off the emergency shutoff valve with the output signal of receiving the earthquake early warning signal, a water source is secured in the event of a disaster, via the water distribution pipe The present invention relates to a more complete water supply management system that prevents unintentional outflow of water generated in the future and enables efficient and fair use of the water source thereafter.

  In a normal water supply management system, as in Patent Documents 1 to 3, an emergency shutoff valve is provided in the main water distribution pipe connected to the water receiving tank or the elevated water tank, and a shake exceeding a certain seismic intensity is detected. A seismic device that outputs a signal is provided, and the emergency shut-off valve is controlled to be shut off by the output signal of the seismic device.

Japan is one of the most earthquake-prone countries. For example, earthquakes with seismic intensity 5 occur frequently. When such earthquakes occur, the seismoscope detects this and outputs a signal through the control panel. Even if the emergency shutoff valve is shut off and the water supply side of the water distribution pipe is damaged, the water in the water receiving tank does not leak unintentionally and leaks unnecessarily, making it suitable as an emergency water source. It has been made available for use.
JP-A-8-246525 JP-A-9-125474 JP-A-10-222202

  However, in water supply management systems for apartment houses and high-rise buildings such as condominiums, there are water tanks such as large receiving tanks and elevated water tanks. Since it can be used as emergency drinking water, an emergency shut-off valve in the water distribution line should be used in case of an earthquake of a certain magnitude or larger so that it will not be wasted due to unintentional outflow of water in this water tank. There is a demand for a structure that can shut off and then use the water in the water tank appropriately.

  Of course, a backup power source is also provided in the event of a power failure during an earthquake disaster.

  On the other hand, there is a great demand for securing as many emergency water sources as possible by fully closing the emergency shut-off valve as soon as possible in the event of an earthquake disaster.

  In other words, if the supply of water from the water main is interrupted due to a major earthquake, etc., the water storage tank and piping system in the building may be damaged, and the stored water may leak out. Even if ordinary water is used at the time of the earthquake, water is used up in about one day, and the water source is depleted. Because there is a possibility of competing and storing, the water source will decrease rapidly, and the water source will be unfairly distributed.

  Therefore, in the present invention, in the event of an earthquake disaster, in order to prevent unintentional outflow of water in the water receiving tank and also in the elevated water tank pumped from the water receiving tank through the water pipe. Control means for shutting off the emergency shutoff valve of each water pipe, or at least the water pipe of the elevated water tank based on the output signal from an earthquake with a seismic intensity of 5 or more, etc. A control means for shutting off the emergency shutoff valve based on a signal is also provided to provide a more complete water supply management system.

  Also, a switch that shuts off the emergency shut-off valve by the operation of the seismic device and a switch that shuts off the emergency shut-off valve by the operation of the emergency earthquake warning signal receiver are provided in parallel. It is also a water supply management system that can shut off the emergency shutoff valve.

  In other words, the earthquake early warning is received by a receiver functioning as one terminal of an earthquake disaster prevention system constructed by an Internet service provider (ISP) or the like, and is sent to an emergency shut-off valve via a control panel that is an emergency shut-off system. Shuts off. Therefore, when a certain large earthquake occurs, the initial tremor wave (P wave) is detected, and an earthquake early warning is transmitted 10 to 30 seconds before the main shock, and the emergency shut-off valve is fully closed by this signal. To do.

  The amount of water source secured by shutting off in advance for 10 to 30 seconds is not necessarily remarkable, but considering that even a drop of water is necessary for life support in an emergency, it is safe and secure. Therefore, the effect is extremely great.

  Therefore, the present invention shuts off the emergency shut-off valve based on the signal of the emergency earthquake warning signal of the earthquake prediction and the control means for shutting off the emergency shut-off valve based on the output signal of the seismic intensity of, for example, seismic intensity 5 or higher. A more complete water supply that can prevent unintentional outflow of water in the water receiving tank and in the elevated water tank pumped from the water receiving tank through the water distribution pipe. A management system can be provided.

  In addition, since the switch for shutting off the emergency shut-off valve by the seismic device and the switch for shutting off the emergency shut-off valve by the emergency earthquake warning signal receiver are provided in parallel, the emergency shut-off valve is provided regardless of which one is activated. It is also a water supply management system that can be reliably shut off.

  Therefore, it is possible to provide a more complete water supply management system twice, secure the water source necessary for life and life maintenance, and efficiently by the faucet operation of each door under the management corresponding to that time, Moreover, the water source can be used fairly and distributed efficiently. Since it is an emergency of an earthquake, there are significant effects for the safety and security of water users.

  Hereinafter, an embodiment of the present invention will be described with reference to a water supply management system shown in FIG. 1. In FIG. 1, a water supply management system 1 is in a water receiving tank 2 to which water is supplied via a water main that is not shown. A certain amount of clean water is stored. And this water is pressurized by the pressurization pump P1 through the water distribution pipe 3 provided in the water receiving tank 2, and it is comprised so that each door H may be supplied through the water tap 4, respectively. Further, in the case of apartment houses such as apartment buildings or high-rise buildings, an elevated water tank 2h as indicated by a dotted line is provided on the rooftop or high place, and water is further pumped from the water receiving tank 2 by a pumping pump P2. After storing a certain amount of clean water in 2h, water is supplied from the water distribution pipe 3h of the elevated water tank 2h to the doors H through the water taps 4 by gravity.

  In addition, the elevated water tank 2h is adopted in a water supply management system such as a hospital where high reliability is required, because the use of water for the elevated water tank is possible due to the gravity type even during a power failure. Many. In the case of only the water receiving tank 2, as described above, it is a pressure-feed type in which water is supplied by the pressurizing pump P 1. In that case, management at the time of emergency power switching is also important.

  As an emergency shut-off valve, either in the water distribution pipe 3 of the water receiving tank 2 or in the water distribution pipe 3h of the elevated water tank 2h, or when both water tanks 2, 2h are installed, or at least the latter For example, the electric shut-off valve 5 or 5h is installed.

  The electric shut-off valves 5 and 5h can be electrically opened and closed in response to an electrical signal from a control panel 6 having a general control circuit, and are normally fully opened. The control panel 6 is provided with a seismic sensor 7 and an emergency earthquake warning receiver 8 in an earthquake prediction system described later in detail.

  The seismic device 7 is a built-in control panel 6 and corresponds to an earthquake main shock (so-called S wave), for example, an electronic acceleration (gal) compatible seismic device. The output end of the seismic device 7 is connected to the emergency shut-off valve 5 and / or 5h. For example, when a vibration having a seismic intensity of 5 or more arrives, the seismic device 7 operates to generate an output signal. If the emergency shut-off valve 5 or 5h is open, it is immediately fully closed, and unintentional outflow of drinking water from the distribution pipes 3 and 3h of the water receiving tank 2 and / or the elevated water tank 2h. It is comprised so that it can prevent.

  Furthermore, the earthquake early warning receiver 8 is installed in, for example, a condominium management room via the Internet connection device 9, and is arranged as part of an earthquake prediction network operated under the management of the Japan Meteorological Agency, When a certain large earthquake occurs, the initial tremor wave (P wave) is detected and there is no seismic intensity information, but an emergency earthquake warning signal is sent 10 to 30 seconds before the main shock, This signal is received. The output terminal of the receiver 8 is connected to the emergency shut-off valve 5 and / or 5h through the control panel 6 in the same manner as the seismic device 7. That is, the output of the receiver 8 activates a switch, which will be described later, and the emergency shut-off valve 5 and / or 5h are immediately fully closed, and the water tank 2 and / or the elevated water tank 2h are similarly arranged prior to the main shock. It is configured so that unintended drinking water can be prevented from flowing out through the water pipes 3 and 3h.

  The output of the receiver 8 is also connected to, for example, the control panel 10 of the elevator facility of the apartment building equipped with the water supply management system 1 and further to the control panel 11 of the intercom facility, and is based on the earthquake early warning. It can be incorporated as a signal necessary for each control.

  FIG. 2 is a control circuit diagram for realizing the control method of the water supply management system 1 as described above. Hereinafter, the circuit configuration of the water supply management system 1 of the present invention will be described with reference to this figure.

  That is, a switching power source PS that is also a battery charging power source is connected between the commercial power sources S via a power switch TS, and a battery B is connected between the power sources PS. The battery B is a battery power source that functions as a shut-off valve drive and a circuit backup during a power failure, which will be described later.

Further, the seismic device 7 and the emergency earthquake warning signal receiver 8 are connected in parallel between the power sources PS. The switches of the seismic sensor 7 and the receiver 8, that is, the relay contacts XV and XE, are connected to the power supply circuit PS via the exciting coils X1 and X2 in parallel with each other to form an OR circuit. In the event of an earthquake, the emergency shut-off valve 5 and / or 5h is configured to shut off water flow by either the seismic device 7 or the signal from the earthquake early warning signal receiver 8 preceding this.

That is, the emergency shut-off valves 5 and 5h are electric shut-off valves, respectively. Normally, the relay contacts X2 and X2 or X2h and X2h are rotated in one direction while the valves are not operated. Water from the water receiving tank 2 or the elevated water tank 2h is opened. From this state, the contacts XV and XE are switched once by the operation of the seismic sensor 7 or the earthquake early warning signal receiver 8, and the valve is rotated in the reverse direction when the relay contacts X2 , X2 , or X2h , X2h are operated. The forward / reverse direction switching circuit C or Ch is configured to rotate the valve in the opposite direction to the normal state, close the shut-off valves 5 and 5h, and shut off the water supply.

Therefore, the seismic device 7 is a gull variable seismic device that operates at a predetermined seismic intensity selected as described above and operates its relay contact V. By the operation of this contact V , as described above, the emergency shutoff valves 5 and 5h of the water distribution pipes 3 and 3h of the water tanks 2 and 2h close the shutoff valves 5 and 5h when the seismic device 7 is actuated to supply water. It is configured to block.

Similarly, as described above, when a certain large earthquake occurs, the earthquake early warning signal receiver 8 precedes the main earthquake for 10 to 30 seconds or more, and the early earthquake signal based on the initial micro wave (P wave) is an emergency earthquake early warning. The relay contact EQ is operated by receiving this signal. Similarly, an exciting coil XE and a return button switch PB, which will be described later, are connected in series with the relay contact EQ, thereby holding itself and operating the relay contact X2 of the shut-off valve 5 by the exciting coil XE. As described above, the shut-off valves 5 and 5h are normally opened to perform normal water supply, but when the receiver 8 is operated, the shut-off valves 5 and 5h are closed to shut off the water supply. It is configured.

Further, in FIG. 2, P1 and P2 are respectively a pressurized water pump and a pump for raising water to the elevated water tank 2h disclosed in the configuration diagram of FIG. 1, and constitute an independent electric circuit, Controlled by the control panels PC1 and PC2 via the relay contacts X2 , respectively, and the operation of the emergency earthquake warning signal receiver 8 pressurizes water from the water receiving tank 2 and distributes it to each house. It is for pumping into the water tank 2h. Accordingly, when the relay contact X2 is activated by the operation of the seismic sensor 7 or the earthquake early warning signal receiver 8, the pumps P1 and P2 are stopped.

In the figure, PB is a return button switch of the seismic device 7, which is linked to the self-holding release contact PR of the breaking signal receiver 8, and is opened and released after the operation of the seismic device 7. The PR is closed and can be restored by manual pressing.

  In addition, OL1, OL2, GL1, GL2, RL1, and RL2 in the figure are indicator lights, respectively, which are a power source, a seismic detector, an earthquake warning, a valve open and a valve close indicator light, and BZ is an alarm buzzer. is there.

  The operation of the embodiment of the present invention configured as described above will be described below with reference to the sequence waveform diagram of the control panel 6 of FIG. 4 according to the flowchart shown in FIG.

  This flowchart shows a series of operations of the above-described seismic sensor 7, the emergency earthquake information receiver 8, and the emergency shut-off valves 5 and 5h operated by signals from these.

That is, when an earthquake occurs in the state where the return button switch PB is not pushed (S2) from the start (S1) in FIG. 3, the supply of clean water from the water main is normally cut off. The earthquake early warning signal, that is, the emergency earthquake early warning signal P is received by the receiver 8 (S3). The forward / reverse direction switching circuit C is actuated by the exciting coil X2 via the relay contact XE by the output signal of the receiver 8, and the emergency shut-off valves 5, 5h are fully closed (S4). The earthquake early warning indicator OL1 and the alarm buzzer BZ are activated (S5) (external alarm is not shown but can be provided by providing an external alarm buzzer if necessary), and the pressurized water supply pump P1 from the water receiving tank 2 Alternatively, the pumping pump P2 to the elevated water tank 2h is stopped (S6), and the closed indicator lights RL1 and RL2 of the emergency shut-off valves 5 and 5h are turned on (S7).

Then, if a tremor of seismic intensity 5 or more comes 10 to 30 seconds after the occurrence of the earthquake, the emergency shutoff valve 5 (5h) is opened via the relay contact XV by the output signal from the seismic device 7 this time. If it is, it is fully closed (S8), and the pressurized water supply pump P1 from the water receiving tank 2 or the pumping pump P2 to the elevated water tank 2h is also stopped (S9). Similarly, the closing indicators RL1 and RL2 of the emergency shut-off valves 5 and 5h are turned on (S10). In this case, if the emergency shut-off valves 5 and 5h are already fully closed by the preceding emergency earthquake information, they are only maintained, but if they are still open depending on the degree of seismic intensity, the shut-off valve 5 and 5h are closed.

In order to return the closed state of the shut-off valves 5 and 5h to normal operation and release, when the return button switch PB is pressed (S11), as is clear from the waveform diagram of FIG. 5 and 5h are fully opened and returned (S12), the alarm is stopped (S13), the pumps P1 and P2 are restarted (S14), and the open indicator lights GL1 and GL2 of the emergency shut-off valves 5 and 5h are turned on. (S15).

  In addition, when there is some damage to this water supply management system 1 after the occurrence of an earthquake, it occurs through the water pipes 3 and 3h of the respective water tanks 2 and 2h, which may occur if the shutoff valve 5 remains open. Unintentional outflow of water can be prevented by the quick emergency shutoff valve 5 or 5h being blocked, and the water in the tank can be maintained safely and reliably.

  In addition, in this Example, although the water supply management system which has the water receiving tank 2 and the elevated water tank 2h was demonstrated, in the system of only the water receiving tank which does not provide the elevated water tank, the water receiving tank is installed in parallel with 2 tanks, In the case of a system in which the water receiving tank is divided into two tanks and one water receiving tank is utilized during periodic inspections and only the other water receiving tank is stopped, the pump only needs to replace the pressure pump. Can be described as substantially equivalent embodiments.

  In this case, similar to the above-described case where the elevated water tank is installed, since the two water receiving tanks 2 are installed, the emergency shut-off valve of each tank is activated in the event of a disaster. As a result, the possibility of an unsuccessful water outflow is halved and the safety in crisis management is increased. Therefore, it is possible to secure as many emergency water sources as possible in the event of a disaster. Therefore, an emergency situation can be efficiently prepared by the emergency shutoff valves provided in the plurality of water tanks and the respective water pipes.

As described above, in addition to the emergency shut-off valve 5 or 5h being fully closed by the normal seismic device 7, the present invention is also capable of fully closing the emergency shut-off valve 5 or 5h by the emergency earthquake warning signal receiver 8. Because they are used together, it is possible to prevent unintentional outflow of water from the distribution pipes of each tank at an early stage prior to the main shock.
Therefore, the water source necessary for life and life maintenance is secured in this way, and the water source can be used efficiently and fairly by the faucet operation of each door under the management corresponding to that time. That can be allocated to each other.

  Since it is an emergency of an earthquake, there are significant effects for the safety and security of water users.

Schematic configuration diagram showing one embodiment of the present invention Control circuit diagram of one embodiment of the present invention The flowchart which shows the operation | movement order of one Example of this invention Waveform diagram in the control circuit in one embodiment of the present invention

Explanation of symbols

1: Water supply management system, 2: Water receiving tank, 2h: Elevated water tank, 3, 3h: Water distribution pipe, 4: Water faucet, 5, 5h: Electric shut-off valve, 6: Control panel, 7: Shock absorber,
8: Earthquake early warning signal receiver, 9: Internet connection device, 10: Elevator control panel, 11: Intercom control panel, H: Door, S: Commercial power supply, TS: Power switch, PS: Switching power supply, B: Battery, TL: Power indicator lamp, OL: Seismic sensor indicator lamp, OL2: Earthquake early warning indicator lamp, GL1, 2: Valve open indicator lamp, RL1, 2: Valve close indicator lamp, BZ: Alarm buzzer, C, Ch: Forward / reverse Direction switching circuit, PB : return button switch, PR: self-holding release contact, P1: pressurizing pump, P2: pumping pump, PC1, 2: control panel, XV , XE , V , X1 , X2 , X2h : relay contact, XV, XE, V, X1, X2, X2h, EQ: Excitation coil

Claims (3)

  An emergency shut-off valve installed in the water distribution pipe of the water receiving tank, a seismic device that senses a shake of a certain seismic intensity or more and outputs a signal to shut off the emergency shut-off valve, and receives an early earthquake early warning signal and an early warning signal And a receiver that shuts off the emergency shut-off valve, and when the seismic intensity is exceeded, the emergency shut-off valve is shut off by the seismic sensor and an emergency earthquake warning signal is received. In addition, the water supply management system is characterized in that the emergency shut-off valve is operated and shut off to prevent unintentional outflow of water in the water receiving tank from the water pipe.   In water supply tanks and water supply tanks that supply water, the emergency shut-off valve provided at least in the water distribution pipe of the water tank and the high water tank, A seismic device that outputs a signal and shuts off the emergency shut-off valve, and a receiver that receives an emergency earthquake warning signal and outputs a warning signal and shuts off the emergency shut-off valve. When a shake occurs, the emergency shut-off valve is shut off by the seismic device, and when the earthquake early warning signal is received, the emergency shut-off valve is operated to shut off, and the inside of the elevated water tank from the water pipe is A water supply management system characterized by preventing unintentional outflow of water.   A switch that operates by the operation of the seismic device and shuts off the emergency shut-off valve, and a switch that operates by the operation of the earthquake early warning signal receiver and operates to shut off the emergency shut-off valve are provided in parallel. The water supply management system according to claim 1 or 2, wherein

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