JPH10311068A - Water feed control system of building - Google Patents

Abstract

PROBLEM TO BE SOLVED: To automatically detect the damaged position of a feed water system, use water efficiently, and use water farily while maintaining the stored water source in a building even if supply of city water from a main line is cut off as in earthquake. SOLUTION: A water feed control system in a building pumps up water stored in a water receiving tank S1 to an elevated city water tank S2 set on the upper floor of a building T, and feeds water to each floor by the gravity through a city water pipe 10 extending from the elevated city water tank S2 to each floor. Emergency solenoid shutoff valves 2 and 2a are installed at the outlet side pipes 12 and 12a of the water receiving tank S1 and elevated city water tank S2, respectively. A solenoid opening and closing valve is installed to the city water pipe on each floor, and water level gauges 4 and 4a are installed in the water receiving tank and elevated city water tank, respectively. Then an earthquake sensor to sense earthquake and control means to output opening and closing signals to each emergency shutoff valve based an output signals from the earthquake sensor are installed. Thus the water feed control can be performed electrically.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a water supply management system for a building, and more particularly to a system for automatically detecting a damaged portion of a water supply system and efficiently and fairly using water while securing a water source at the time of an earthquake. The present invention relates to a water supply management system for a building devised as described above.

[0002]

2. Description of the Related Art Generally, as shown in FIG. 3, an elevated water tank system in an apartment house or the like is constructed such that water is temporarily stored in a water receiving tank S1 from a water main and then placed on an upper floor (rooftop) of a building T. Pumping water to a water tank (water high water tank) S2 by a pump P1, and from there a water pipe 1 to each dwelling unit 1H to 10H on each floor.
It is supplied by gravity through 0 and 11.

In this case, valves 13 and 13 are connected to the outlet pipe 12 of the water receiving tank S1 and the outlet pipe 12a of the high water tank S2.
a is provided respectively. And this high water tank S
2 water supply pipes 10 and 1 directed to the lower floor via branch pipes 14 from outlet side pipes 12a and distribution valves 15 and 15a.
Branched to 1. In addition, the water level gauges 4 and 4 necessary for the operation control of the pump P1 are provided in the water receiving tank S1 and the high water tank S2.
a is provided. In the figure, reference numeral 16 denotes a water meter.

On the other hand, as shown in FIG. 4, the water supply system in an office building is such that water is temporarily stored in a water receiving tank S1 from a water main, and then a high water tank S2 is placed on the upper floor (roof) of the building T. The water is pumped up by a pump P1 and supplied from there via a water supply pipe 21 to a water supply unit (other than a toilet) 20 on each floor by gravity.

[0005] At that time, in a building having a central sewerage system as shown in the figure, high-concentration drainage such as toilet or kitchen drainage (hereinafter referred to as toilet drainage. If kitchen drainage is discharged to the sewer, Is replaced with kitchen drainage.) Is discharged into the sewer as it is, and other drainage such as hand washing flows into the treated water tank S3. After the treatment, the wastewater is stored in the middle water storage tank S4. S
The water is pumped up to 5 and from there is supplied to a middle water utilization section 23 such as a toilet system on each floor via a middle water pipe 22. 4b and 4c are water level gauges, 12b and 12c are outlet pipes, and 13b and 13c are valves. In the figure, the same reference numerals are given to components having basically the same functions as those in FIG.

[0006]

However, such a conventional water supply system has the following problems when the supply of clean water from the water main is cut off due to a large earthquake or the like. (1) Water tanks and piping systems in the building may be damaged, and stored water may flow out. (2) The amount of stored water is extremely small, about 1 to 2 days, which is the amount of water normally used in a building even when the building is full. To be depleted. (3) In the case of a multi-family housing, if an earthquake disaster occurs, each dwelling unit may compete for storage, and water sources will rapidly decrease and water sources will be unfairly distributed. (4) The ratio of toilet flushing water to normal water use is high, and this ratio rises further in the event of an earthquake, causing valuable water sources to be discharged to the sewer.

The present invention has been made in consideration of the above points, and secures a water source in a building even when the supply of clean water from a water main is interrupted as in the case of an earthquake. It is another object of the present invention to provide a building water supply management system capable of automatically detecting a damaged portion of a water supply system, and efficiently and fairly using water.

[0008]

In order to solve the above-mentioned problems, in the present invention, water stored in a water receiving tank is pumped up to a high water tank placed on an upper floor of a building, and the water is collected from the high water tank. In a water supply management system for a building configured to supply water to each floor by gravity through a water supply pipe heading to each floor, an emergency shutoff valve provided at the outlet pipe of the water receiving tank and the high water tank, and water supply to each floor Opening / closing valves provided in pipes, water level gauges provided in the receiving tank and high water tank, seismic sensors for detecting earthquakes, etc., and emergency shutoff valves and opening / closing based on the output signals of the seismic sensors And a control unit for outputting an open / close signal to each valve. Here, the control means may be configured to include a function of outputting an open / close signal to each of the emergency shut-off valves and the on-off valves based on the measurement values of each water level gauge. Further, in the present invention, the clean water stored in the water receiving tank is pumped up to the clean water elevated water tank installed on the upper floor of the building, and the gravity of each of the floors is increased by gravity through the clean water piping from the clean water elevated water tank to each floor. Water is supplied to the tap water use section, waste water from the tap water use section is sent to the treated water tank, and the water treated in the treated water tank is stored in the tap water storage tank, and from there the high tap water tank installed on the upper floor of the building A water supply management system for a building equipped with a circulation path that pumps up to the intermediate water utilization section of each floor by gravity through the intermediate water piping from the elevated high water tank to each floor, Emergency shut-off valves provided on the outlet pipes of the high water tank, medium water high water tank and medium water storage tank, and open / close valves provided on the water supply pipe and medium water pipe on each floor, respectively, and provided on each of the water tanks Water level gauge, seismic sensor to detect earthquakes, etc. The closing signal has a structure and a control means for outputting each of the emergency shut-off valve and the valves. Here, a three-way valve that is switched and controlled by the control means is provided in the middle of the drainage pipe from the intermediate water utilization unit, and a return pipe that guides drainage to the treatment water tank by switching the three-way valve may be provided. . Further, the control means may be configured to include a function of outputting an open / close signal to each emergency shutoff valve and each open / close valve based on the measurement value of each water level gauge.

[0009]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Preferred embodiments of the present invention will be described below with reference to FIGS. FIG. 1 is a system diagram showing an embodiment in which the present invention is applied to an apartment house, and FIG. 2 is a system diagram showing an embodiment in which the present invention is applied to a building such as an office building. In these figures, components corresponding to those in FIGS. 3 and 4 shown as conventional examples are denoted by the same reference numerals for convenience of explanation.

In the water supply management system shown in FIG. 1, the water once stored in the water receiving tank S1 is basically stored in the building T as in the conventional water supply system shown in FIG.
Pump up to the high water tank S2 installed on the upper floor of
Water is supplied from the high water tank S2 to the dwelling units H1 to H10 on the respective floors via the water pipes 10 and 11 by gravity.

In the present embodiment, the outlet pipes 12 and 12a of the water receiving tank S1 and the high water holding tank S2, respectively.
Are provided with emergency shutoff valves 2 and 2a that operate based on the outputs of the seismic devices 1 and 1a, respectively. The seismographs 1 and 1a
Here, it is installed in each of the water receiving tank S1 and the high water tank S2, but it may be installed in another nearby part. The detection values of the seismic devices 1 and 1a are output to control means C such as a control box, which will be described later. The emergency shutoff valves 2, 2a
An electrically controllable solenoid valve or the like is used.

[0012] A pipe 14 for branching from the high-water tank S2,
A water supply pipe 10 connected via electromagnetic on-off valves 5, 5a,
11, a water meter 3 with a solenoid valve is provided at a pipe portion toward each dwelling unit 1H to 10H on each floor. The water meter 3 with a solenoid valve includes a pulse signal transmitter used for flow rate control, and outputs the same to the control means C.

The water receiving tank S1 and the high water tank S2 are provided with water level gauges 4 and 4a for electrically detecting their water levels and outputting the detected values to the control means C.

The control means C performs arithmetic processing based on the output signals of the seismometers 1 and 1a and the water level gauges 4 and 4a, and according to a sequence (program) incorporated in advance, the emergency shutoff valves 2 and 2a and the electromagnetic valves While the on / off signal is output to the attached water meter 3 and the electromagnetic on / off valve 5 for distribution to each house, an alarm signal is output to an alarm device (not shown) if necessary.

In the water supply management system having such a configuration, when a large earthquake occurs and the water main is broken,
Based on the execution of the sequence by the control means, it functions as follows. "Automatic securing of water volume"<1> When the seismic devices 1 and 1a installed in the water receiving tank S1 and the high water tank S2 respectively detect (sense) an earthquake of a certain seismic intensity (for example, seismic intensity 6), The control means C automatically closes each of the emergency cutoff valves 2, 2a based on the detection signal. <2> At the same time, a closing signal is output from the control means C to each of the water meters 3 with solenoid valves provided in the water supply pipes 10 and 11 to the dwelling units 1H to 10H, respectively.
All the solenoid valves of each water meter 3 are closed. This stops the water supply to each dwelling unit. <3> Next, the water level of each of the water tanks S1 and S2 is
a is automatically measured, and the measuring device is sent to the control means C to calculate the amount of water remaining in each of the water tanks S1 and S2.

"Automatic detection of water tank damage"<4> Each water tank S immediately after the earthquake and after standing for a certain set time
1. The water level of S2 is automatically measured by the water level meters 4 and 4a, respectively, and the two values (specifically, the voltage or current value) are compared. If the difference between them is larger than the set value, the water level is automatically measured. An alarm sounds and the sequence (program execution) stops temporarily. In this case, there is a high possibility of water leakage due to damage to the water tank, so take emergency measures. If not, the sequence proceeds automatically to the next.

"Automatic detection of piping system breakage"<5> With the electromagnetic on / off valve 3 of each dwelling unit closed, the electromagnetic shutoff valve 2a of the water high water storage tank S2 and the electromagnetic open / close for distribution to the water supply pipe 10 Open the valve 5 and measure the water level of the water tank S2.
The water level after a certain set time is automatically measured by a, and if the difference between the two is larger than the set value compared with the initial value, an alarm is automatically sounded and the sequence is temporarily stopped. In this case, since there is a high possibility of water leakage due to the breakage of the water supply pipe 10, emergency measures are taken. If not, the sequence automatically proceeds to the next.

<6> The distribution on-off valve 5 for the water supply pipe 10 is closed, and the other distribution on-off valve 5a is opened.
The water level after a certain set time is automatically measured by the water level meter 4a, and if the difference between the water level and the initial value is larger than the set value, an alarm is automatically sounded and the sequence is temporarily stopped. In this case, since there is a high possibility of water leakage due to breakage of the pipe of the water supply pipe 11, emergency measures are taken. If not, the sequence automatically proceeds to the next. When there are three or more dwelling units on each floor, there are three or more distribution electromagnetic on-off valves 5a for each floor, so the series of operations <6> is repeated according to the number of units on each floor.

[Equity distribution of water] <7> Open the emergency shut-off valve 2a and the distribution on-off valves 5 and 5a of the high water tank S2, and supply only the set flow rate by the pulse signal of the water meter 3 of each dwelling unit. Then, the solenoid valve of the water meter 3 is automatically closed. This set water amount is performed in the control means C as follows, for example. When the water level V remains by the measurement of the water level gauges 4 and 4a and the number of supplied dwelling units is n, the pulse set value is set to V / n per dwelling unit.
And

According to the present embodiment, when the water supply is cut off at the time of the earthquake, the water levels in the water tanks S1 and S2 are automatically secured, the water tanks S1 and S2 and the piping system are automatically checked for damage, and the water is supplied to each dwelling unit. Equitable distribution of water, as well as self-diagnosis of equipment, secure water necessary for life and maintenance of life, and distribute fairly.

When the well W is installed, water can be supplied to the water receiving tank S1 at the time of the earthquake, so that fair distribution can be performed by the above method. Therefore,
Even with a water truck, fair distribution can be achieved by supplying the water to the water receiving tank S1 similarly to the well. In order to check for damage to the pipe between the water receiving tank S1 and the water tank S2, the emergency shutoff valve 2 on the outlet side of the water tank S1 was opened, and a certain amount was supplied to the water tank S2 by the pump P1. After that, S1 was measured by water level meter 4 and 4a.
It can be confirmed by comparing the increase and decrease of S2. In addition, a solenoid valve or the like may be provided between each dwelling unit in order to examine in detail a pipe breakage point between each dwelling unit.

FIG. 2 shows an example in which the present invention is applied to a water supply system for a building having a water supply system and a middle water system such as an office building. In the water supply management system shown in FIG. 2 as well, basically, the water once stored in the water receiving tank S1 from the main water pipe is transmitted to the building T similarly to the conventional water supply system shown in FIG.
Is pumped up by the pump P1 to the high water tank S2 installed on the upper floor of the building, and the water supply unit 20 of each floor is gravity driven through the water piping 21 from the high water tank S2 to each floor.
To be supplied to

Then, the wastewater from the tap water utilization section 20 is sent to the treated water tank S3, and the water treated in the treated water tank S3 is stored in the intermediate water storage tank S4. There is provided a circulation path that is pumped up to the water storage tank S5 by the pump P2 and supplied to the intermediate water utilization unit 23 on each floor by gravity via the intermediate water pipe 22 from the intermediate water storage tank S5 to each floor.

In such a circulation path, in the present embodiment, the water receiving tank S1, the high water storage tank S2, the medium water storage tank S4
And the outlet-side pipes 12, 12a, 12 of the elevated water tank S5.
b, 12c are provided with emergency shutoff valves 2, 2a, 2b, 2c that operate based on the detection values of the seismic devices 1, 1a, 1b, 1c, respectively. The seismic sensor 1 is installed in the water receiving tank S1, the high water tank S2, the medium water storage tank S4, and the medium water tank S5. The detected value of each seismic sensor is output to control means such as a control box (not shown) which is substantially the same as that shown in the above embodiment. An electrically controllable electromagnetic valve or the like is used for each emergency shutoff valve.

Electromagnetic on-off valves 5 are provided in the water supply pipe 21 of each floor to the water use unit 20 and in the middle water pipe 22 of each floor to the middle water use unit 23, respectively. The water level gauge which electrically detects the water level in the receiving tank S1, the high water storage tank S2, the middle water storage tank S4, and the middle water storage tank S5 and outputs the detected value to the control means C. 4, 4a, 4b, 4c
Are provided respectively.

The control means C performs arithmetic processing based on the output signals of the respective seismic sensors and the respective water level gauges, and according to a sequence (program) incorporated in advance, the respective emergency shutoff valves 2, 2a,.
While outputting an open / close signal to 2b, 2c and each electromagnetic open / close valve 5, it is configured to output an alarm signal to an alarm (not shown) or the like as necessary.

In the middle of the drain pipe 6 from the intermediate water utilization section 23,
A three-way solenoid valve 3a that is controlled to be switched by the control means is provided, and a return pipe 7 that guides drainage to the treatment water tank S3 by switching the three-way solenoid valve 3a is provided.

In the water supply management system having such a configuration, when a large earthquake occurs and the water main is broken,
Based on the execution of the sequence by the control means, it functions as follows. "Automatic securing of water volume"<1> Water receiving tank S1, high water tank S2, medium water storage tank S
4. When the seismic devices 1, 1a, 1b, and 1c respectively installed in the high water tank S5 detect (sense) an earthquake having a certain seismic intensity (for example, seismic intensity 6), control is performed based on the detection signal. Means C automatically closes each emergency shutoff valve 2, 2a, 2b, 2c. <2> Next, the water levels of the water tanks S1, S2, S4, and S5 are automatically measured by the water level meters 4, 4a, 4b, and 4c,
The measuring device is sent to the control means C to calculate the amount of water remaining in each water tank.

"Automatic detection of water tank damage"<3> Each water tank S immediately after the earthquake and after standing for a certain set time
The water levels of S1, S2, S4, and S5 are each automatically measured by a water level meter, and the values of the two (specifically, voltage or current values) are compared. An alarm is sounded and the sequence (program execution) stops temporarily. In this case, there is a high possibility of water leakage due to damage to the water tank, so take emergency measures. If not, the sequence proceeds automatically to the next.

[Automatic detection of piping system breakage] <4> With the electromagnetic on-off valve 5 connected to the water supply pipe 21 of each floor closed, the emergency shutoff valve 2a of the water supply high water tank S2,
The emergency shutoff valve 2c of the middle water tank S5 is opened, and the water level after a certain set time is automatically measured by the water level gauges 4a and 4c. If it is larger, the alarm will sound automatically and the sequence will stop. In this case, since there is a high possibility of water leakage due to damage to the pipes of the water supply pipe 21 and the intermediate water pipe 22, emergency measures are taken. If not, the sequence automatically proceeds to the next.

<5> Only the solenoid on-off valve 5 on the first floor (specific floor) of tap water and middle water is opened, and water is used only on the first floor. The merits of use in such specific places are that circulation is possible with the minimum necessary piping, and only specific drainage pipes are used, so the drainage pipes used are damaged or blocked. In such a case, it is possible to stop using the first floor and switch to a problem-free floor (for example, the second floor).

"Inflow of the total amount of wastewater into the sewer system"<6> Simultaneously with the closing of the emergency shutoff valves 2, 2a, 2b, and 2c in each water tank, the three-way solenoid valve 3a of the toilet wastewater discharged to the sewer is switched. It is closed, the discharge to the sewer is stopped, the valve to the treated water tank S3 side is opened, and the toilet wastewater flows into the treated water tank S3 via the return pipe 7.

According to the present embodiment, when the water supply is cut off during the earthquake disaster, the water source water amount is automatically secured, high-concentration wastewater such as a toilet is allowed to flow in as a water source and circulated, and water is used at a specific location. Can be limited, and the self-diagnosis of the equipment, the securing of water necessary for life and maintenance of life, and the waste of water can be suppressed.

[0034]

As described above, according to the water supply management system for a building according to the present invention, the emergency cutoff valves provided at the outlet pipes of the water receiving tank and the high water tank and the water pipes at each floor are provided. The on-off valves provided, the water level gauges provided in the receiving tank and the water tank, the seismic sensor for detecting earthquakes, etc., and the emergency shutoff valve and each on-off valve based on the output signal of the seismic device The system includes a control unit that outputs each open / close signal, so even if the supply of clean water from the water main is interrupted as in the case of an earthquake, the water supply system can be maintained while maintaining the water source in the building. It is possible to automatically detect a damaged portion of the water and efficiently use water.

Further, the control means has a function of outputting an open / close signal to each of the emergency shutoff valves and the on / off valves based on the measured values of the respective water level gauges. Management and the like can be performed easily.

Further, according to the present invention, a water supply management system for a building having a water supply system and a circulation system for a public water supply system includes a water receiving tank, a high water supply tank, a high water supply tank, and an outlet side of a high water storage tank. Emergency shut-off valves provided on pipes, on-off valves provided on water pipes and medium water pipes on each floor, water level gauges provided on each of the water tanks, seismic devices for detecting earthquakes, etc. Control means for outputting an open / close signal to each emergency shut-off valve and each open / close valve based on the output signal of the vessel, so that even if the supply of clean water is interrupted, the water source in the building is secured. In addition, automatic detection of a damaged portion of the water supply system and effective use of water resources can be achieved.

In the middle of the drainage pipe from the middle water utilization section,
By providing a three-way valve that is switched and controlled by the control means and by providing a return pipe that guides drainage to the treatment water tank by switching the three-way valve, particularly, water that has been discharged as sewage can be effectively used. Can be.

[Brief description of the drawings]

FIG. 1 is a diagram showing a building water supply management system according to an embodiment of the present invention.

FIG. 2 is a diagram showing a building water supply management system according to another embodiment of the present invention.

FIG. 3 is a diagram of a conventional building water supply system.

FIG. 4 is a diagram of a conventional building water supply system.

[Explanation of symbols]

 S1 water receiving tank S2 high water tank S3 treated water tank S4 medium water storage tank S5 medium water high tank P1, P2 Pump T Building 1, 1a, 1b, 1c Seismic sensor 2, 2a, 2b, 2c Emergency shut-off valve 3 Water meter with solenoid valve 3a Three-way solenoid valve 4, 4a, 4b, 4c Water level gauge 5, 5a Electromagnetic on-off valve 6 Drain pipe 7 Return pipe 10, 11 Water pipe 12, 12, 12a, 12b, 12c Outlet pipe 13, 13a, 13b, 13c Valve 14 Branch pipe 20 Clean water use section 21 Clean water pipe 22 Clean water pipe 23 Clean water use section

Claims (5)

[Claims] 1. Pumping water stored in a receiving tank to a high water tank placed on the upper floor of a building, and supplying the water to each floor by gravity via a water pipe from the high water tank to each floor. A water supply management system for a building having a configuration, comprising: an emergency shutoff valve provided at an outlet pipe of a water receiving tank and a high water tank; an open / close valve provided at a water pipe of each floor; Includes a water level gauge provided in each elevated water tank, a seismic sensor for sensing an earthquake or the like, and control means for outputting an open / close signal to each emergency shutoff valve and each open / close valve based on an output signal of the seismic device. A building water supply management system, characterized in that: 2. The building water supply according to claim 1, wherein the control means has a function of outputting an open / close signal to each of the emergency shutoff valves and the on / off valves based on the measurement values of the respective water level gauges. Management system. 3. The water stored in the water receiving tank is pumped up to an elevated water tank installed on the upper floor of the building, and the water is pumped from the elevated water tank to each floor by gravity through a water pipe to each floor. Water is supplied to the water use department, wastewater from the clean water use department is sent to the treatment water tank, and the water treated in the treatment water tank is stored in the middle water storage tank, and from there to the middle water high water tank installed on the upper floor of the building A water supply management system for a building equipped with a circulation path that pumps up and supplies gravity water to the water use section on each floor via gravity water pipes from the water rise tank to each floor, and includes a receiving tank, a water supply height An emergency shut-off valve provided at the outlet pipe of the water storage tank, the middle water high water storage tank and the middle water storage tank, and an on-off valve provided at the water supply pipe and the middle water pipe of each floor, respectively, were provided at each of the water tanks. Water level gauges, seismic sensors for detecting earthquakes, etc. A water supply management system for a building, comprising: a shutoff valve and control means for outputting an open / close signal to each of the open / close valves. 4. A three-way valve, which is switched and controlled by a control means, is provided in the middle of a drain pipe from the intermediate water utilization part, and a return pipe is provided for flowing waste water into a treated water tank by switching the three-way valve. The water supply management system for a building according to claim 3, wherein: 5. The building according to claim 3, wherein the control means has a function of outputting an opening / closing signal to each of the emergency shutoff valves and the on / off valves based on the measurement values of the respective water level gauges. Water management system.