JP3794159B2 - Information system for water leakage and stagnant water using sprinkler equipment - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a water leakage / stagnation water notification system that uses sprinkler equipment to notify residents of the occurrence of water leakage or stagnant water.
[0002]
[Prior art]
For residents, leakage of water leads to a rise in water bills, which is uneconomical, while the sterilizing effect of chlorine, etc. is about one week, after which bacteria and bacteria are generated (so-called dead water) and unsanitary Therefore, a system for notifying that water leakage or stagnant water is occurring is desired.
[0003]
[Problems to be solved by the invention]
However, the construction of such a water leakage / stagnation water notification system in a residence has a problem that the cost of the housing increases due to the reconstruction of the residence.
[0004]
The present invention has been made to solve the above-described problems, and the leakage of tap water and stagnation water using sprinkler equipment that has been completed not only in housing complexes but also in general households. The purpose is to obtain a low-cost water leakage / stagnation water notification system that allows residents to be detected and notified to residents, so that residents can use tap water economically and hygienically. .
[0005]
[Means for Solving the Problems]
The water leakage / stagnation water notification system using the sprinkler facility according to the present invention is a primary system in which a closed sprinkler head is provided in a secondary side pipe, and the secondary side pipe is directly connected to a water supply pipe via a flowing water detection valve. A terminal end faucet for daily life is provided on the downstream side of the closed sprinkler head of the secondary pipe, and the flow rate of the flow detection valve is smaller than the flow rate of the closed sprinkler head, And the sprinkler equipment set larger than the flow rate of the above-mentioned domestic end faucet,
First detection means for detecting the presence or absence of drainage from the terminal water tap for daily life from the position of the valve body of the flowing water detection valve;
Second detection means for detecting the presence or absence of water discharge from the closed sprinkler head from the position of the valve body of the flowing water detection valve;
Informing means for informing of the occurrence of water leakage, stagnant water and fire,
Timekeeping means,
A leakage judgment time and a stagnant water judgment time are stored, and based on the output signals of the first and second detection means, the presence / absence of drainage from the household end faucet, the presence / absence of water discharge from the closed sprinkler head, Determine
(A) If it is determined that there is water discharge from the closed sprinkler head, determine the occurrence of a fire,
(B) When it is determined that there is no water discharge from the closed-type sprinkler head and there is drainage from the household end faucet, the time measured by the time measuring means is compared with the water leakage determination time, When the timed time is longer than the water leakage judgment time, the occurrence of water leakage is determined,
(C) When it is determined that there is no water discharge from the closed-type sprinkler head and there is no drainage from the terminal water tap for domestic use, the time measured by the time measuring means is compared with the time for determining stagnant water. , If the timed time is longer than the stagnant water judgment time, determine the occurrence of stagnant water,
Control means for causing the notification means to notify the occurrence of water leakage, stagnant water, and fire based on the determinations of (a), (b), and (c);
Input means for setting the water leakage judgment time and the stagnant water judgment time.
[0006]
DETAILED DESCRIPTION OF THE INVENTION
Embodiments of the present invention will be described below with reference to the drawings.
Embodiment 1 FIG.
1 is a system diagram schematically showing a sprinkler facility used in a water leakage / stagnation water notification system according to Embodiment 1 of the present invention, and FIG. 2 is a sectional view showing a water flow detection valve of the sprinkler facility shown in FIG. FIG.
In FIG. 1, a stop valve 2 for maintenance or the like is provided in the primary side pipe 20 of the flowing water detection valve 1, and a closed sprinkler head 3 and a constant flow valve 4 are provided in the secondary side pipe 21. . The primary side pipe 20 is connected to a water supply pipe 22, and a terminal end water tap 5 for daily use such as a toilet or a bath is provided at the end of the secondary side pipe 21.
In FIG. 1, 6 is a drain valve, 7 is a pressure gauge shut-off valve, 8 is a pressure gauge, 9 is a toilet tank or bath tub, and 10 is a control box.
[0007]
Here, the structure of this flowing water detection valve 1 is demonstrated, referring FIG.
This flowing water detection valve 1 is provided with a valve seat 23, a first housing 12 to which a primary side pipe 20 and a secondary side pipe 21 are connected, and a second housing 13 that is airtightly connected to the first housing 12. A valve body 24 in which the shaft portion 24a is slidably disposed in a guide hole 13a provided in the second housing 13, and a spring 27 that biases the valve body 24 in a direction in which the valve body 24 comes into contact with the valve seat 23. The magnet 25 is disposed on the shaft 24 a of the valve body 24, and the first and second reed switches 28 and 29 are provided in the second housing 13 and detect the proximity of the magnet 25. A guide portion 24 b for smooth sliding of the valve body 24 is provided on the lower surface side of the valve body 24.
The flow rate of the flowing water detection valve 1 is, for example, 20 L / min, the flow rate of the sprinkler head 3 is, for example, 30 L / min, and the flow rate of the constant flow valve 4 is, for example, 10 L / min. That is, the operating flow rate of the flowing water detection valve 1 is set smaller than the flow rate of the sprinkler head 3 and larger than the flow rate of the constant flow rate valve 4. In addition, 101 is a water tap for a large flow rate, for example, 20 L / min, and 102 is a pipe that connects the water tap 101 to the primary side pipe 20 on the primary side of the stop valve 2.
[0008]
Next, the operation of the flowing water detection valve 1 will be described with reference to FIG. 3 is a cross-sectional view showing the operating state of the flowing water detection valve. FIG. 3A shows an unused state of domestic water, FIG. 3B shows a used state of domestic water, and FIG. ) Shows the state where the sprinkler head has discharged water in the event of a fire.
First, when the closed sprinkler head 3 and the end faucet 5 such as a toilet are closed, there is no flow of water in the secondary pipe 21, and the valve body 24 has a valve seat due to its own weight and the urging force of the spring 27. 23, as shown in FIG. 3A, the valve is closed, that is, the domestic water is not used.
When the terminal faucet 5 such as a toilet is opened, the constant flow valve 4 discharges a constant flow rate, that is, 10 L / min of water to the tank 9. Thereby, the water pressure in the secondary side piping 21 falls. Therefore, the valve body 24 pressed by the water in the primary side pipe 20 moves away from the valve seat 23 against the biasing force of the spring 27, and as shown in FIG. The valve is opened, that is, the water is used. Then, the water in the primary side pipe 20 flows into the secondary side pipe 21.
At this time, the magnet 25 moves along with the movement of the valve body 24 and approaches the first reed switch 28, and the first reed switch 28 is turned on. Since the constant flow valve 4 is provided on the downstream side of the closed sprinkler head 3, when the terminal water tap 5 is opened, all the water accumulated in the secondary pipe 21 is discharged and stagnant water Is prevented from occurring.
[0009]
When the closed sprinkler head 3 is opened due to a fire, the water in the secondary side pipe 21 is discharged from the head 3 at a flow rate of 30 L / min, and the water pressure in the secondary side pipe 21 decreases. Therefore, the valve body 24 pressed by the water in the primary side pipe 20 moves in a direction away from the valve seat 23 against the urging force of the spring 27, and as shown in FIG. The valve is opened, that is, a fire is generated. Then, the water in the primary side pipe 20 flows into the secondary side pipe 21.
At this time, the magnet 25 moves with the movement of the valve body 24. However, since the flow rate (30 L / min) is larger than the operating flow rate (20 L / min) of the flowing water detection valve 1, the movement amount is large. Therefore, the magnet 25 approaches the second reed switch 29, the second reed switch 29 is turned on, and it is detected that water is discharged from the head 3. The first reed switch 28 is also on.
[0010]
As described above, in this sprinkler facility, whether the water for domestic use is used or whether a fire has occurred by detecting the on / off state of the first and second reed switches 28 and 29. The state of whether or not can be determined.
[0011]
FIG. 4 is a conceptual diagram showing a water leakage / stagnation water notification system using the sprinkler facility according to Embodiment 1 of the present invention, and FIG. 5 is a flowchart showing the operation of this water leakage / stagnation water notification system.
In this water leakage / stagnation water notification system, first and second detection circuits 30 and 31 for detecting the on / off states of the first and second reed switches 28 and 29 of the sprinkler facility, and a timer as a time measuring means, respectively. Based on the output signals of the circuit 32, the leaking water, stagnant water and fire, and the output signals of the first and second detection circuits 30 and 31, the timer circuit 32 is operated to detect the leakage, stagnant water and fire. For example, a control unit 34 having a microcomputer or the like for determining occurrence and outputting a notification signal to the notification unit 33 and an input unit 35 for inputting a determination time of water leakage or stagnant water to the control unit 34 are provided. Here, the first reed switch 28 and the first detection circuit 30 constitute a first detection means, and the second reed switch 29 and the second detection circuit 31 constitute a second detection means.
[0012]
Next, the operation of the water leakage / stagnation water notification system will be described.
First, the stagnant water judgment time T ₀ (for example, 24H) and the water leak judgment time T ₁ (for example, 2H) are input to the control means 34 by the input means 35, and the system is started.
Therefore, the control means 34 operates the timer circuit 32 and starts monitoring the on / off states of the first and second reed switches 28 and 29 based on the output signals of the first and second detection circuits 30 and 31. .
The control means 34 first determines the on / off state of the first reed switch 28 from the output signal of the first detection circuit 30 (step 100). If the first reed switch 28 is in the off state, the control means 34 proceeds to step 101, and the timer It is determined whether or not the measurement time t of the circuit 32 is t <T ₀ . If t <T ₀ , the process returns to step 100.
Here, if t <T ₀ , that is, if t ≧ T ₀ , it is determined that stagnant water has occurred, and the process proceeds to step 102 where the notification means 33 notifies the occurrence of stagnant water. This state indicates that domestic water is not used for a time T ₀ (for example, 24H), that is, water is stagnating in the secondary side pipe 21 for a time T ₀ . Therefore, the resident is alerted that the water in the secondary side pipe 21 may become stagnant water, and the water in the secondary side pipe 21 is discharged.
[0013]
If the first reed switch 28 is in the on state in step 100, the process proceeds to step 103, and the on / off state of the second reed switch 29 is determined from the output signal of the second detection circuit 31. If the second reed switch 29 is in the OFF state, the process proceeds to step 104 to determine whether or not the measurement time t of the timer circuit 32 is t <T ₁ . If t <T ₁ , the process returns to step 100.
Here, if t <T ₁ , that is, if t ≧ T ₁ , it is determined that water leakage has occurred, and the process proceeds to step 105 where the notification means 33 notifies the occurrence of water leakage. This state indicates that domestic water continues to be used for time T ₁ (eg, 2H). Therefore, the resident is informed that there is a risk of water leakage and prompts the user to confirm that the terminal faucet 5 has not been closed. At this time, if the terminal faucet 5 is not forgotten to close, water leakage has occurred, and a request for inspection and repair work can be made to the supplier.
[0014]
If the second reed switch 29 is in the on state in step 103, the process proceeds to step 106. This state indicates that the closed sprinkler head 3 is opened. Therefore, the notification means 33 notifies the occurrence of a fire and can prompt the resident to evacuate.
[0015]
Thus, according to this Embodiment 1, since the sprinkler equipment which has come to be completed not only in a housing complex but also in a general home is used, there is no need to renovate the house, and water leakage・ Still water notification system can be constructed at low cost. Moreover, even if a sprinkler facility is used, it is possible to reliably notify the occurrence of water leakage and stagnant water as distinguished from the occurrence of a fire, and the residents can use tap water economically and hygienically.
Further, since the operating flow rate of the flowing water detection valve 1 is set to be smaller than the flow rate of the sprinkler head 3 and larger than the flow rate of the constant flow valve 4, whether or not the closed sprinkler head 3 is opened by one flowing water detection valve and The presence or absence of opening of the end water tap 5 can be distinguished and detected, equipment costs and construction costs can be reduced, and the cost can be reduced.
[0016]
In the first embodiment, when the water leakage / stagnation water notification system is applied to an apartment house, the system may be independent for each residence or may be centrally managed in a management room.
In the first embodiment, the flow rate of the flowing water detection valve 1 is 20 L / min, the flow rate of the sprinkler head 3 is 30 L / min, and the flow rate of the constant flow valve 4 is 10 L / min. However, the flow rate of the flowing water detection valve 1 may be set smaller than the flow rate of the sprinkler head 3 and larger than the flow rate of the constant flow rate valve 4.
In the flowchart in the first embodiment, a water leakage alarm, a fire alarm, and a stagnation water alarm are output. However, after these alarms are output, the operation is returned to the start and the above operation is repeated. Good. By operating in this way, it is possible to output other alarms even after outputting one alarm, and the reliability of the present system can be improved. That is, for example, even if a fire occurs after a water leak alarm is output and the sprinkler is activated, the fire alarm can be output, and the possibility of misreporting can be eliminated.
[0017]
【The invention's effect】
According to the present invention, the closed sprinkler head is provided in the secondary side pipe, the secondary side pipe is connected to the primary side pipe directly connected to the water supply pipe via the flowing water detection valve, and Provided on the downstream side of the closed sprinkler head of the secondary pipe, the flow rate of the flow detection valve is smaller than the flow rate of the closed sprinkler head and larger than the flow rate of the end-use water faucet for daily use. Set sprinkler equipment,
First detection means for detecting the presence or absence of drainage from the terminal water tap for daily life from the position of the valve body of the flowing water detection valve;
Second detection means for detecting the presence or absence of water discharge from the closed sprinkler head from the position of the valve body of the flowing water detection valve;
Informing means for informing of the occurrence of water leakage, stagnant water and fire,
Timekeeping means,
A leakage judgment time and a stagnant water judgment time are stored, and based on the output signals of the first and second detection means, the presence / absence of drainage from the household end faucet, the presence / absence of water discharge from the closed sprinkler head, Determine
(A) If it is determined that there is water discharge from the closed sprinkler head, determine the occurrence of a fire,
(B) When it is determined that there is no water discharge from the closed-type sprinkler head and there is drainage from the household end faucet, the time measured by the time measuring means is compared with the water leakage determination time, When the timed time is longer than the water leakage judgment time, the occurrence of water leakage is determined,
(C) When it is determined that there is no water discharge from the closed-type sprinkler head and there is no drainage from the terminal water tap for domestic use, the time measured by the time measuring means is compared with the time for determining stagnant water. , If the timed time is longer than the stagnant water judgment time, determine the occurrence of stagnant water,
Control means for causing the notification means to notify the occurrence of water leakage, stagnant water, and fire based on the determinations of (a), (b), and (c);
Since there is an input means for setting the water leakage judgment time and the stagnant water judgment time, water leakage of tap water using sprinkler equipment that has been completed not only in apartment houses but also in general households The system for detecting leakage and stagnation of water using inexpensive sprinkler equipment that allows residents to use tap water economically and hygienically can be detected. can get.
[Brief description of the drawings]
FIG. 1 is a system diagram schematically showing sprinkler equipment used in a water leakage / stagnation water notification system according to Embodiment 1 of the present invention.
FIG. 2 is a cross-sectional view showing a water flow detection valve of a sprinkler facility used in a water leakage / stagnation water notification system according to Embodiment 1 of the present invention.
FIG. 3 is a diagram for explaining the operation of a water flow detection valve of a sprinkler facility used in a water leakage / stagnation water notification system according to Embodiment 1 of the present invention.
FIG. 4 is a conceptual diagram showing a water leakage / stagnation water notification system using the sprinkler facility according to Embodiment 1 of the present invention;
FIG. 5 is a flowchart showing the operation of the water leakage / stagnation water notification system using the sprinkler facility according to Embodiment 1 of the present invention.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Flow water detection valve, 3 Closed type sprinkler head, 5 End-use water tap, 20 Primary side piping, 21 Secondary side piping, 22 Water supply pipe, 24 Valve body, 28 1st reed switch (1st detection means), 29 second reed switch (second detecting means), 30 first detecting circuit (first detecting means), 31 second detecting circuit (second detecting means), 32 timer circuit (time measuring means), 33 informing means , 34 control means, 35 input means.

Claims (1)

A closed-type sprinkler head is provided in the secondary side pipe, the secondary side pipe is connected to the primary side pipe directly connected to the water supply pipe through the water flow detection valve, and the household end water tap is connected to the secondary side pipe. A sprinkler facility provided on the downstream side of the closed sprinkler head, wherein the flow rate of the water flow detection valve is set smaller than the flow rate of the closed sprinkler head and larger than the flow rate of the end-of-life hydrant ,
First detection means for detecting the presence or absence of drainage from the terminal water tap for daily life from the position of the valve body of the flowing water detection valve;
Second detection means for detecting the presence or absence of water discharge from the closed sprinkler head from the position of the valve body of the flowing water detection valve;
Informing means for informing of the occurrence of water leakage, stagnant water and fire,
Timekeeping means,
A leakage judgment time and a stagnant water judgment time are stored, and based on the output signals of the first and second detection means, the presence / absence of drainage from the household end faucet, the presence / absence of water discharge from the closed sprinkler head, Determine
(A) If it is determined that there is water discharge from the closed sprinkler head, determine the occurrence of a fire,
(B) When it is determined that there is no water discharge from the closed-type sprinkler head and there is drainage from the household end faucet, the time measured by the time measuring means is compared with the water leakage determination time, When the timed time is longer than the water leakage judgment time, the occurrence of water leakage is determined,
(C) When it is determined that there is no water discharge from the closed-type sprinkler head and there is no drainage from the terminal water tap for domestic use, the time measured by the time measuring means is compared with the time for determining stagnant water. , If the timed time is longer than the stagnant water judgment time, determine the occurrence of stagnant water,
Control means for causing the notification means to notify the occurrence of water leakage, stagnant water, and fire based on the determinations of (a), (b), and (c);
An information system for leaking water and stagnant water using a sprinkler facility, comprising: an input means for setting the water leak judgment time and the stagnant water judgment time.

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